RI051306DF DRAFT FINAL TECHNICAL MEMORANDUM · RI051306DF DRAFT FINAL TECHNICAL MEMORANDUM...

RI051306DF

DRAFT FINALTECHNICAL MEMORANDUM

EVALUATION OF AMMONIA ANDSUPPLEMENTAL SOIL DATA

SDMS DocID 237446

REMEDIAL INVESTIGATION/FEASIBILITY STUDY

INDUSTRI-PLEX SITEWOBURN, MASSACHUSETTS

RESPONSE ACTION CONTRACT (RAC), REGION I

ForU.S. Environmental Protection Agency

ByTetra Tech NUS, Inc.

EPA Contract No. 68-W6-0045EPA Work Assignment No. 116-RICO-0107

TtNUS Project No. GN4123

October 2005

TETRA TECH NUS, INC.

TETRA TECH NUS, INC.55 Jonspin Road • Wilmington, MA 01887-1020Tel 978.658.7899 • Fax 978.658.7870 • www.tetratech.com

RACI-EPA-5794

Contract No. 68-W6-0045

October 19, 2005

Records CenterU.S. Environmental Protection Agency1 Congress Street, Suite 1100 (HBO)Boston, Massachusetts 02114-2023

Subject: Transmittal of Draft Final Technical Memorandum - Evaluation of Ammonia andSupplemental Soil Data, October 2005Industri-plex Site, Remedial Investigation/Feasibility StudyRAC I W.A. No. 116-RICO-0107

Gentlemen:

At the request of the U.S. Environmental Protection Agency (USEPA), Tetra Tech NUS, Inc. isproviding to you one printed copy and one CD electronic copy of the Draft Final TechnicalMemorandum - Evaluation of Ammonia and Supplemental Soil Data Report, that was preparedfor the Industri-plex Superfund Site located in Woburn, Massachusetts. If you should have anyquestions regarding this transmittal, please contact Mr. Joseph LeMay of the USEPA at 617-918-1323.

Very truly you

Gdrdon H. BullardProject Manager

PMO- /£)

GHB/rp

Enclosure

J. LeMay (EPA) w/o enc.H. Horahan (EPA) w/o enc.G. Gardner/A. Ostrofsky (TtNUS) w/o enc.File GN4123-1.0 w/o enc.

141

RI051306DF

DRAFT FINALTECHNICAL MEMORANDUM

EVALUATION OF AMMONIA AND SUPPLEMENTAL SOIL DATA

REMEDIAL INVESTIGATION/FEASIBILITY STUDY

INDUSTRI-PLEX SITEWOBURN, MASSACHUSETTS

RESPONSE ACTION CONTRACT (RAC), REGION

ForU.S. Environmental Protection Agency

ByTetra Tech NUS, Inc.

EPA Contract No. 68-W6-0045EPA Work Assignment No. 116-RICO-0107

TtNUS Project No. GN4123

October 2005

Qordon BullaProject Manager

George D. Gardner, P.E.Program Manager

DRAFT FINAL

TABLE OF CONTENTSDRAFT FINAL TECHNICIAL MEMORANDUM

REMEDIAL INVESTIGATION/FEASIBILITY STUDYINDUSTRI-PLEX SITE

WOBURN, MASSACHUSSETTS

SECTION PAGE

ES EXECUTIVE SUMMARY ES-1

1.0 INTRODUCTION 1-1

2.0 SAMPLING BACKGROUND 2-12.1 Groundwater and Surface Water Data 2-12.2 July 2005 Surface Water Data 2-22.3 July 2005 Soil Data 2-3

3.0 NATURE AND EXTENT OF CONTAMINATION AND FATE ANDTRANSPORT 3-13.1 Groundwater 3-13.2 Surface Water 3-23.3 Soil 3-5

4.0 RISK EVALUATION 4-14.1 Human Health Risk Evaluation 4-14.2 Ecological Risk Evaluation 4-74.3 Impact of Findings on RAOs and PRGs 4-9

5.0 IMPACT OF FINDINGS ON THE JUNE 2005 PROPOSED PLAN 5-1

6.0 SUMMARY 6-1

TABLES

NUMBER

2-12-22-32-42-54-1

Groundwater Wet Chemistry Analytical ResultsNatural Attenuation Study - Groundwater Wet Chemistry DataNatural Attenuation Study - Surface Water Wet Chemistry DataJuly 11, 2005 Surface Water Sampling ResultsJuly 12, 2005 Soil Sampling Results - Wells G&H WetlandComparison of Ammonia Results to Water Quality Criteria

RI051306DF Tetra Tech NUS, Inc.

DRAFT FINAL

TABLE OF CONTENTS (cont.)DRAFT FINAL TECHNICIAL MEMORANDUM

REMEDIAL INVESTIGATION/FEASIBILITY STUDYINDUSTRI-PLEX SITE

WOBURN, MASSACHUSSETTS

FIGURES

NUMBER

2-1 GSIP Groundwater Sample Locations Analyzed for Ammonia2-2 EPA/ORD Snap-Shot Groundwater Sample Locations2-3 EPA/ORD Fixed Groundwater Sample Locations2-4 EPA/ORD Surface Water Sample Locations2-5 Industri-Plex Water Sampling Halls Pond Watershed2-6 Industri-Plex Soil Sampling Rifle Club Area3-1 Ammonia Concentrations in Groundwater3-2 Partial Key Contaminant Migration Pathways with Ammonia and July 2005 Sample

Locations

APPENDICES

A Natural Attenuation Study Ammonia Data in Surface WaterB July 2005 Surface Water and Soil Sample ResultsC Supporting Information for Risk EvaluationD National Recommended Water Quality Criteria Tables for AmmoniaE Ammonia Toxicity Profile

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DRAFT FINAL

ACRONYMS AND ABBREVIATIONS

All

CCC Criterion Continuous Concentration (chronic)

CMC Criterion Maximum Concentration (acute)

COPC contaminant of potential concern

Cr chromium

CT central tendency

EPA United States Environmental Protection Agency

EPC exposure point concentration

FS Feasibility Study

GSIP Groundwater/Surface Water Investigation Plan

HBHA Halls Brook Holding Area

HHRA human health risk assessment

HI , hazard index

HQ hazard quotient

ILCR Incremental Lifetime Cancer Risk

IRIS Integrated Risk Information System

LOAEL lowest observed adverse effect level

MADEP Massachusetts Department of Environmental Protection '

MBTA Massachusetts Bay Transportation Authority

MCL maximum contaminant limit

M&E Metcalf & Eddy, Inc

mg/kg milligrams per kilogram

mg/L milligrams per liter

MSGRP Multiple Source Groundwater Response Plan

MSGRP Rl Multiple Source Groundwater Response Plan Remedial Investigation

NA Not analyzed / Not applicable

NAS Natural Attenuation Study

ND Not detected

NERL (EPA) New England Regional Laboratory

NML northern multi-level (sampler)

NPDWSA Non-Potential Drinking Water Source Area

NRWQC National Recommended Water Quality Criteria

ORD (EPA) Office of Research and Development


DRAFT FINAL

ACRONYMS AND ABBREVIATIONS (cont.)

OU Operable Unit

PRG Preliminary Remediation Goal

PRP Potentially Responsible Parties

RAGs Remedial Action Guidelines

RAO ' remedial action objective

RfC reference concentration

RfD reference dose

Rl Remedial Investigation

RI/FS Remedial Investigation/Feasibility Study

RME reasonable maximum exposure

STSC Superfund Technical Support Center

TAL target analyte list

TRV toxicity reference value

TtNUS Tetra Tech NUS, Inc.

UCL Upper Confidence Limit

USEPA United States Environmental Protection Agency


DRAFT FINAL

ES EXECUTIVE SUMMARY

i) •

Following a review of groundwater and surface water data that was presented in the March

2005 Draft Final Multiple Source Groundwater Response Plan Remedial Investigation Report

(MSGRP Rl), the U.S. Environmental Protection Agency (EPA), has identified ammonia as an

additional contaminant of concern for the Industri-plex Superfund Site Operable Unit 2 (Industri-

plex OU-2). This technical memorandum presents the findings of this evaluation.

Section 2.0 of the MSGRP Rl presents a detailed discussion of each groundwater sampling

event conducted during the Industri-plex OU-2 MSGRP Rl. The analytical results of these

sampling events are included in Appendix 4B of the MSGRP Rl, and a summary of analytical

results is set forth in Table 2-1. The data presented in Appendix 4B includes anion and cation

data, which includes ammonia from 39 monitoring wells. On June 24, 2005, EPA's Office of

Research and Development (ORD) released an internal memorandum entitled "Ammonia Data

For Water Quality Samples" (June 24 ORD Memo), which presents ammonia groundwater and

surface water data that were collected as part of the Natural Attenuation Study (NAS),

conducted to support the MSGRP Rl. The memorandum and data were included in the June

2005 Administrative Record. In addition to the NAS groundwater and surface water ammonia

data, EPA collected and evaluated the following additional surface water and soil data: 1) July

2005, ammonia surface water data (to further understand background conditions); and 2) July

2005, heavy metals soil data (to further evaluate an area being considered by the City of

Woburn for future recreational trails).

EPA has determined that previously identified contaminated groundwater plumes outlined in the

June 2005 Proposed Plan and illustrated on Figure 3-1 also contain high concentrations of

ammonia. The decomposition of the buried animal hide wastes at the Operable Unit 1 of the

Industri-plex Site (Industri-plex OU-1) contribute significantly to the generation and release of

ammonia in groundwater. In addition, the contaminated groundwater plumes contain strong

reducing conditions which contribute to the presence and migration of high ammonia

concentrations in the groundwater and its discharge into the HBHA Pond. The fate and

transport of ammonia is similar to the fate and transport patterns observed for dissolved arsenic

groundwater plumes.

RI051306DF ES-1 Tetra Tech NUS, Inc.

DRAFT FINAL

The highest concentrations of ammonia in groundwater (up to 2,710 milligrams per liter (mg/L))

were found at locations adjacent to or downgradient of the existing animal hide piles or in other

areas where animal wastes have been buried, such as the NSTAR right-of-way. Consistent

with the MSGRP Rl, these groundwater plumes, including ammonia, migrate and discharge in

the HBHA Pond. Concentrations of ammonia up to 1,380 mg/L were observed discharging in

the northern portion of the HBHA Pond, and concentrations up to 1,270 mg/L were observed in

the deep surface water of the HBHA Pond. The concentrations of ammonia in the shallow

surface water at the HBHA Pond outlet were slightly elevated and ranged from 4.0 mg/L to 17.9

mg/L.

On July 11, 2005, EPA collected samples to evaluate background ammonia surface water

conditions entering the HBHA Pond. Ammonia was not detected in surface water samples

collected from Halls Brook upstream of the New Boston Street Drainway confluence. Slightly

elevated ammonia concentrations (ranging from 9.97 mg/L to 12.7 mg/L) were detected in

surface water upstream along the New Boston Street Drainway, Landfill Creek, and East

Drainage Ditch. After surface water flow from the New Boston Street Drainway combines with

Halls Brook prior to its discharge into HBHA Pond, the ammonia concentration at the outlet of

Halls Brook was 2.10 mg/L or approximately 80 percent less than upstream New Boston Street

Drainway, which suggests the upstream ammonia concentrations are diluted by Halls Brook

prior to discharge into the HBHA Pond.

EPA has evaluated the human health and ecological risks associated with ammonia based on

groundwater data presented in the MSGRP Rl and groundwater and surface water data

presented in the June 24 ORD Memo,. In addition, EPA evaluated potential human health risks

associated with the July 2005 soil data collected between former Woburn production wells G&H.

EPA applied the same risk assessment methods and approach utilized in the March 2005

MSGRP Rl, and determined that the ammonia contributes to excess human health risks to

future commercial workers exposed to site groundwater via inhalation exposure scenarios. EPA

also determined that the surface water at the HBHA Pond contains excessive concentrations of

ammonia that exceeds the National Recommended Ambient Water Quality Criteria (NRWQC)

and contributes to unacceptable ecological risks to aquatic life in the HBHA Pond. As a result,

EPA is identifying ammonia as an additional contaminant of concern in groundwater and surface

water that also warrants action under Industri-plex OU-2.


m ' DRAFT FINAL

— As indicated above, ammonia is an additional compound within the previously identified

contaminated groundwater plumes, which discharge into the HBHA Pond. The fate and

transport of ammonia in groundwater is consistent with the fate and transport of other

contaminated groundwater plumes (e.g. arsenic and benzene) presented in the MSGRP Rl,

where contaminated groundwater plumes originate from Industri-plex OU-1 and discharge into

the HBHA Pond, impacting aquatic life in the pond. Similar to processes that are attenuating

arsenic and benzene, the presence of the chemocline in the HBHA Pond serves to sequester

the highest concentrations of ammonia at depth while assisting in the natural processes that

convert ammonia to nitrates and nitrites in the more oxic zones of the water column.

•

The identification of this additional contaminant of concern does not alter the remedial

" alternatives selected for the June 2005 Proposed Plan, which would also adequately address

ammonia concentrations. Preferred Alternative GW-2-Pond Intercept and Monitoring with

m Institutional Controls would incorporate ammonia and remain protective; Preferred Alternative

GW-4 for the West Hide Pile, In-situ Enhanced Bioremediation, would reverse observed

4)l reducing conditions to oxidizing conditions, thereby decreasing ammonia concentrations; and

Preferred Alternative HBHA-4 would also intercept ammonia plumes, continue to sequester/treat

(|(f contaminants (including ammonia) below the chemocline, and further reduce contaminants

below NRWQC via an appropriately designed aeration treatment system. A pre-design

investigation would include monitoring for ammonia to ensure the cofferdams associated with

the northern portion of the HBHA Pond are properly located to intercept the contaminated

groundwater plumes, including ammonia, and the aeration treatment system is appropriately

designed to reduce contaminants below NRWQC. Further pre-design studies would be

implemented to ensure the aeration treatment system is properly designed, and to furtherm evaluate ammonia background conditions.

• EPA also evaluated risks for the soil samples collected between the former production wells

G&H. The soil samples were analyzed for heavy metals and the concentrations detected were

• relatively low in all samples. EPA determined that human health risks did not exceed EPA's risk

range, Feasibility Study (FS) Remedial Action Objectives (RAO), or FS Preliminary Remediation

• Goals (PRG).


DRAFT FINAL

EPA believes that the addition of ammonia as a COC does not substantially affect the overall

evaluation outcome, or alter the cost, scope, or performance of the alternatives identified in the

June 2005 FS and Proposed Plan.


• DRAFT FINAL

^ 1.0 INTRODUCTION

i

This report was prepared at the request of the U.S. Environmental Protection Agency (EPA) by

the cooperative efforts of Tetra Tech NUS, Inc. (TtNUS) and Metcalf and Eddy, Inc. (M&E) for

the United States Environmental Protection Agency (EPA) under Contract No. 68-W6-0045,••

Work Assignment No. 116-RICO-0107 and Contract No. 68-W6-0042, Work Assignment No.

107-RICO-0146, respectively.m

The objectives of this report are to: 1) further evaluate groundwater and surface water data that

** were included in the March 2005 MSGRP Rl (TtNUS, 2005a) and the June 24 ORD Memo,

which were included in EPA's June 2005 Administrative Record; 2) present additional surface

** water and soil data collected subsequent to the issuance of the MSGRP Rl and the June 2005

Draft Final MSGRP Feasibility Study (TtNUS, 2005b), and 3) evaluate the nature and extent,

nB fate and transport and potential human health and ecological risks resulting from the ammonia

in groundwater and surface water data, and metals in the July 2005 soil data. For contextual

!|tf purposes, previously released data is included in this evaluation.

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2.0 SAMPLING BACKGROUND

After further review of groundwater and surface water data collected during the MSGRP Rl,

EPA on July 11, 2005, conducted additional sampling of surface water in the Halls Brook

Holding Area Pond (HBHA Pond) and surface water flowing into the HBHA Pond. In addition, in

response to a request from the City of Woburn, EPA collected additional surface soil samples

on July 12, 2005 from a potential future recreational area adjacent to the eastern edge of the

Wells G&H 38-acre wetland, near the former production wells, Well G and Well H.

The following sections present the results of these sampling events as wells as previously

reported sampling events in order to fully evaluate contaminant trends and potential risks.

2.1 Groundwater and Surface Water Data

Groundwater data collected during the remedial investigation as part of the Groundwater and

Surface Water Investigation Plan (GSIP) included geochemical analytical parameters to be used

in the evaluation of fate and transport mechanisms for metals mobilization and migration, in

particular, arsenic. These secondary parameters included anions and cations, specifically,

ammonia, nitrite, nitrate, phosphorous, bicarbonate, and sulfate. Other parameters included

alkalinity, total suspended solids, and dissolved organic carbon. A total of 39 well locations

were sampled, most at multiple depths intervals. Well locations sampled for ammonia during

the MSGRP Rl investigation are shown on Figure 2-1. Detailed discussions regarding each

sampling event are presented in Section 2 of the MSGRP Rl. The results of these analyses

were originally presented in Appendix 4B of the MSGRP Rl, but are also summarized in Table

2-1. The MSGRP Rl was publicly released in March 2005, and was included in EPA's June 30,

2005 Administrative Record for Industri-plex OU-2.

As reported in Section 2.0 of the MSGRP Rl, EPA ORD conducted a field investigation in

several phases from October 1999 to September 2001 to support an assessment of arsenic

contamination and migration within the Northern Study Area. The objectives of the study were

to: 1) determine migration mechanisms controlling arsenic transport at Industri-plex OU-1 and

the study area; 2) evaluate the potential role of natural attenuation processes in mitigating

arsenic transport from the site and study area; and 3) provide guidance for determining

reasonable, cost-effective treatment technologies for the Aberjona River.


DRAFT FINAL

The field investigation included the collection of groundwater, surface water, and sediment

samples from Industri-plex OU-1 and study area. Sample collection efforts focused on

characterization of arsenic migrating from site groundwater to the surface water and sediment in

the HBHA Pond. Details of the field investigation, study methodology, and results were

presented in the study report (Draff Project Report: Natural Attenuation Study; Groundwater,

Surface Water, Soil, and Sediment Investigation; Industri-plex Superfund Site; Woburn,

Massachusetts. Robert Ford, EPA ORD, September 2004), which was included as Appendix 2D

of the MSGRP Rl. The report however, did not present all geochemical data collected during

the investigation, but rather focused on the analytical results controlling arsenic migration and

natural attenuation processes.

The June 24 ORD Memo presented the results of dissolved ammonia-nitrogen, temperature,

and pH in groundwater and surface water samples collected during the study, including sample

location figures. Well locations that were sampled by EPA ORD for ammonia are shown on

Figure 2-2 (groundwater) and Figures 2-3 and 2-4 (surface water). The June 24 ORD Memo is

included in Appendix A of this report, and was also included in EPA's June 30, 2005

Administrative Record for Industri-plex OU-2.

2.2 July 2005 Surface Water Data

Upon further review of the geochemistry data for groundwater and surface water data, ammonia

was identified as a potential contaminant of concern due to the high concentrations observed in

groundwater in the vicinity of the hide piles, the NSTAR right-of-way, and in deep surface water

of the HBHA Pond; a known discharge zone for groundwater originating from the Industri-plex

Site.

On July 11, 2005, EPA's New England Regional Laboratory (NERL) collected 12 surface water

grab samples from 12 locations in the HBHA Pond, Halls Brook, East Drainage Ditch, New

Boston Street Drainway, and Landfill Creek. Sample locations are shown on Figure 2-5. The

purpose of these samples was to evaluate background concentrations of ammonia in surface

water.

Samples were analyzed for ammonia, bromide, chloride, fluoride, nitrate, nitrite, sulfate, nitrate

as nitrogen, nitrite as nitrogen, and o-phosphate as phosphorous. Results of these analyses as


DRAFT FINAL

well as field logs and, sample location figures are presented in Appendix B of this report and are

summarized in Table 2-4.

2.3 July 2005 Soil Data

As mentioned above, in response to a request from the City of Woburn, on July 12, 2005, EPA

NERL collected 12 surface soil samples from 12 locations along the eastern edge of the Wells

G&H wetland in an area potentially used for future recreational activities such as recreation

trails. Sample locations are shown on Figure 2-6.

Samples were analyzed for target analyte list (TAL) metals. These results of these analyses as

well as field logs and sample location figures are also presented in Appendix B of this report.

Analytical results for the soil samples are also summarized in Table 2-5.


DRAFT FINAL

3.0 NATURE AND EXTENT OF CONTAMINATION AND FATE ANDTRANSPORT

;/ '

The following section presents a discussion of the analytical data for groundwater, surface

water, and soil discussed above as well as fate and transport mechanisms.

3.1 Groundwater

A portion of the groundwater samples collected during the GSIP phase of the Rl investigations

was analyzed for anions and cations. Of particular note was ammonia, which showed

concentrations ranging from non-detect in locations near Mishawum Road to 2,710 milligrams

per liter (mg/L) in sample locations adjacent to or downgradient of the hide piles or where

animal waste have been buried, such as the NSTAR right-of-way.

Groundwater data collected by EPA ORD showed ammonia concentrations up to 1,380 mg/L

discharging in the northern portion of the HBHA Pond (TW-01 sampled on 9/11/01). The

highest concentrations of ammonia were consistently observed in wells located along the

northeastern edge of the HBHA Pond Refer to Figure 3-1.

The pattern of contamination shown on Figure 3-1 is consistent with the pattern predicted from

both the source information and groundwater flow directions presented in the MSGRP Rl. The

flow path pattern is also consistent with the distribution of other contaminants modeled in the

MSGRP Rl, specifically, arsenic and benzene. See Figure 3-2 for a partial summary of key

groundwater contaminant migration pathways, including ammonia.

Fate and Transport of Ammonia in Soil and Groundwater

Industri-plex OU-1 has a very large source of organic nitrogen in the form of buried animal hide

wastes. As bacteria decompose the waste, some of the nitrogen that was bound up in complex

organic molecules can be released to the soil as ammonia. Through leaching processes, the

ammonia is converted to ammonium by reacting with water. Ammonia exists in water in two

forms: as ammonium ion (NH4+), which is highly soluble, and as ammonia gas (NH3) (Masters,

1991).


DRAFT FINAL

In aerobic substrates, organic nitrogen may mineralize to ammonium, which plants and

microbes can utilize, adsorb to negatively charged particles (e.g., clay), or diffuse to the surface.

Ammonium can be absorbed by plants or microbes and incorporated back into the organic

matter matrices. It can also become bound to organic soil matrices since the soils have

negative charges and the ammonium is positive. However, ammonium is a reduced compound,

so if there is no oxygen present, it won't transform or be converted, but rather just increase in

concentration. In the case of Industri-plex OU-1, reduced conditions have been documented in

groundwater (MSGRP, 2005a). These conditions would tend to cause ammonium to remain in

the dissolved state and migrate with the groundwater flow towards the south, discharging into

the HBHA Pond and wetlands.

Concentrations of ammonia in groundwater can fluctuate depending on seasonal temperature

conditions that impact biological activity. For example, in winter months, biological activity is

usually low, consequently ammonia concentrations are low. However, the animal hide wastes

at the Industri-Plex site are buried, in some cases more than 40 feet below grade, and are

relatively insulated from the effects of seasonal temperature changes. Therefore, the biological

processes accounting for the production of ammonia is relatively unaffected by seasonal

temperature changes. This results in consistent elevated concentrations of ammonia in

groundwater, discharging to the deeper portions of the HBHA Pond on a year-round basis.

3.2 Surface Water

According to the EPA ORD data from surface water samples collected in the HBHA Pond, the

highest concentrations of ammonia were consistently detected at the deepest locations in the

northern portion of the HBHA Pond, up to 1,270 mg/L (NML sampled on 9-14-01). The northern

portion of the HBHA Pond has been identified as the principal discharge zone for contaminated

groundwater originating from the Industri-plex OU-1. Concentrations of ammonia become

attenuated in the water column, with concentrations decreasing towards the surface, away from

the groundwater discharge zone. The concentration of ammonia in shallow water (upper 100

cm) in the HBHA Pond ranged from 2.0 mg/L to 31.1 mg/L, and averaged 10,7 mg/L. This trend

of the highest concentrations at depth and lower concentrations near the surface is also

consistent with other contaminants observed in surface water such as arsenic and benzene.


DRAFT FINAL

The concentration of ammonia from six samples collected at the Halls Brook inlet ranged from

3.3 mg/L to 7.8 mg/L over multiple sampling events from 2000 to 2004, and averaged 5.6 mg/L

The concentrations of ammonia in the six shallow surface water at the HBHA Pond outlet

ranged from 4.0 mg/L to 17.9 mg/L during these multiple sampling events, and averaged 9.9

mg/L.

On July 11, 2005, EPA collected samples to evaluate background ammonia surface water

conditions entering the HBHA Pond. Ammonia was not detected in surface water samples

collected from Halls Brook upstream of the New Boston Street Drainway confluence. Slightly

elevated ammonia concentrations, ranging from 9.97 mg/L to 12.7 mg/L, were detected in

surface water upstream along the New Boston Street Drainway, East Drainage Ditch, and

Landfill Creek (see Figure 2-1). After surface water flow from the New Boston Street Drainway

combines with Halls Brook prior to its discharge into HBHA Pond (see Figure 2-5), the ammonia

concentration at the outlet of Halls Brook was 2.10 mg/L or approximately 80 percent less than

upstream New Boston Street Drainway, which suggests the upstream ammonia concentrations

are diluted by Halls Brook prior to discharge into the HBHA Pond. In addition, a sample

collected from the NSTAR drainage channel exhibited ammonia concentrations of 8.03 mg/L.

This drainage channel discharges into the northern portion of the HBHA Pond.

Fate and Transport of Ammonia in Surface Water

The MSGRP Rl has documented the presence of a chemocline in the HBHA Pond. Section 5 of

the MSGRP Rl presents detailed discussions on the formation and chemical reactions taking

place at the chemocline. Generally, the chemocline is induced by the difference in low

conductivity/oxic surface water contributed by Halls Brook and inputs of high conductivity/anoxic

contaminated groundwater into the deeper portions of the pond.

Due to the chemocline, dissolved metals in groundwater are being partially sequestered at

depth in HBHA Pond sediments. This chemocline also supports the biodegradation of benzene

that is also being discharged by the contaminated groundwater plumes. As a result of the

chemocline, high concentrations of dissolved arsenic, benzene and conductivity are detected in

deeper portions of the pond's surface water, while very low concentrations are in the shallow

surface water. Based on the surface water data collected by EPA ORD during the natural

attenuation study, EPA has concluded that the chemocline is also serving to sequester the


DRAFT FINAL

ammonia at depth. See Figure 3-2 for a contaminant cross-section of HBHA Pond, including

ammonia.i( '

As ammonia diffuses towards the chemocline, the bacteria Nitrosomonas europea can oxidize

the ammonia to nitrite. Other bacteria, such as Nitrobacter can then convert the nitrite to nitrate.

Plants or microorganisms can assimilate nitrate (assimilatory nitrate reduction) or facultative

anaerobic bacteria may further reduce nitrate (denitrification) to gaseous nitrogen (N2) when

nitrate diffuses into the deeper anoxic water of the HBHA Pond. The gaseous nitrogen can

volatilize and disperse into the ambient air or be absorbed into organic matrices. Thus, the

alternating reduced and oxidized conditions of the HBHA Pond both below and at the

chemocline completes the nitrogen cycle.

Another biodegradation process includes direct utilization of ammonia by plankton within the

water column. This process would also contribute to the decrease in ammonia concentrations

observed between the upper and deeper layers of the water column. Upon the cyclical death of

planktonic cells, these solids can settle back to the sediment layer returning sequestered

nitrogen (ammonia) to the bottom of the HBHA Pond. Similar to the processes described at the

hide piles, bacteria can decompose the plankton biomass and release the available nitrogen as

ammonia.

Typically, the biological and chemical process of nitrification/denitrification in the nitrogen cycle

transforms the majority of nitrogen entering wetlands, causing between 70% and 90% to be

removed (Reilly 1991; Gilliam 1994). In the case of the HBHA Pond, the chemocline sequesters

the higher ammonia concentrations at depth and assists the natural processes available that

convert some of the ammonia to nitrates, nitrites, and nitrogen gas. As ammonia migrates to

the chemocline, aerobic bacteria can convert the ammonia to nitrite. Through diffusion, the

nitrite comes into contact with the more oxygenated zone of the chemocline where it can be

further oxidized to nitrate. Further reductions can also occur through facultative anaerobic

bacteria where the nitrate can be reduced to nitrite and nitrogen gas can be released.

Based on data collected during the 18-month surface water investigation (presented in

Appendix 2C of the MSGRP Rl), Halls Brook contributes approximately 50 percent of the water

in the HBHA Pond (on average) during baseflow conditions and approximately 81 percent (on

average) during storm events. The surface water inflows from Halls Brook also assist in


DRAFT FINAL

decreasing ammonia ,concentrations in the shallow surface water of HBHA Pond through

dilution. This is most apparent during and immediately following heavy storm events. •

3.3 Soil

Twelve surface soil samples were collected along the eastern edge of the Wells G&H wetland.

Arsenic was the only contaminant of concern identified in the MSGRP Rl that presented a risk

or hazard to humans resulting from exposure to contaminated sediments. Although not posing

a risk or hazard, other contaminants of potential concern (COPC) evaluated in the MSGRP Rl

included lead and chromium.

Arsenic was not detected in any of the 12 surface soil samples collected during the July 2005

event. Chromium concentrations ranged from 8.4 mg/kg to 26 mg/kg. Lead concentrations

ranged from 52 mg/kg to 370 mg/kg.


DRAFT FINAL

4.0 RISK EVALUATION

{i •

This section presents a human health and ecological risk evaluation of the groundwater, surface

water, and soil data presented and discussed in Sections 2.0 and 3.0. The purposes of this risk

evaluation are: 1) to evaluate the potential human health risks and/or adverse ecological effects

that may be posed by ammonia in groundwater and surface water at Industri-plex OU-1 and

HBHA Pond, and metals in surface soil at the potential recreation trail area (RC area) near

former production wells G and H; and 2) to provide a basis for decisions as to whether remedial

action is necessary.

Based on the lack of a completed exposure pathway between groundwater and ecological

receptors, the groundwater ammonia data have been quantitatively evaluated for human

exposures only. Surface water ammonia data have been qualitatively evaluated for both human

exposures, and potential ecological effects. Because the RC area surface soil metals data were

specifically collected at the request of the City of Woburn to evaluate an upland area being

considered for future re-use as a recreation trail, a quantitative human health risk evaluation

was performed for the soil data.

The human health evaluation of groundwater, surface water, and soil data is presented in

Section 4.1 and the ecological evaluation of surface water data is presented in Section 4.2. For

those media and chemicals associated with a human health risk or hazard above EPA risk

management guidelines or exceedances of ecological benchmarks or standards (e.g., National

Recommended Water Quality Criteria), Remedial Action Objectives (RAOs) and Preliminary

Remediation Goals (PRGs) are presented in Section 4.3.

4.1 Human Health Risk Evaluation

The human health risk evaluation has been conducted using methods and assumptions

consistent with those used in the baseline human health risk assessments for Operable Units 3

of the Wells G&H Superfund Site (Aberjona River Study; MSGRP Southern Study Area) (M&E,

2004) and Operable Unit 2 of the Industri-plex Superfund Site (MSGRP Northern Study Area)

(TtNUS, 2005). In cases where quantitative evaluation was performed, only Reasonable

Maximum Exposure (RME) estimates of risk and hazard have been presented.


DRAFT FINAL

The human health evaluation includes a quantitative evaluation of GSIP groundwater ammonia

data, EPA ORD and July 2005 shallow surface water ammonia data collected from HBHA Pond,

and July 2005 surface soil data. Other groundwater and surface water quality parameters

measured have not been included in this evaluation because: (1) the parameter was not

detected (e.g., bromide); (2) detected concentrations were significantly below conservative

screening criteria (e.g., nitrate, nitrite, and fluoride); or (3) the parameter is a nutrient/dietary

component and is unlikely to be toxic at the levels detected (e.g., phosphate and chloride).

Appendix C.1, Table 1 (Selection of Exposure Pathways) identifies the exposure media,

exposure points, receptors, and routes of exposure quantitatively and qualitatively evaluated as

part of this human health risk evaluation.

Groundwater

During the GSIP investigation, transect sampling of groundwater was conducted in 2001/2002

for Industri-plex OU-1 and the study area which included sampling and analysis for ammonia.

The groundwater ammonia data quantitatively evaluated for human health risks are presented in

Appendix C.2, Table 1. Sampling locations are shown on Figure 2-1.

Based on the MADEP groundwater use and value determination (MADEP, 1997), residential

groundwater use in the Industri-plex Site area is assumed not to occur in the future. However,

use of contaminated groundwater for commercial purposes (e.g., process water and use in a car

wash) is assumed. Based on information presented in the baseline human health risk

assessment for the Northern Study Area (TtNUS, 2005a), the car wash scenario is more

conservative than the process water scenario for volatile compounds. Therefore, this risk

evaluation only presents the car wash scenario results. For the car wash scenario, inhalation of

volatile compounds released from groundwater would be the primary exposure pathway.

To evaluate the impact of future groundwater use in a car wash on indoor air quality, the

maximum detected groundwater ammonia concentration presented in Appendix C.3, Table 1,

was modeled to an indoor air concentration using methods and assumptions provided in

Appendix C.3, Table 2. For estimation of air concentrations in a warm water car wash, the

shower model approach presented by Foster and Chrostowski (1986; 1987) was assumed to be


DRAFT FINAL

proportionally representative of conditions similar to a car wash. Additional details concerning1 the methods and assumptions used in the modeling are provided in Appendix C.3. •

The maximum modeled indoor air ammonia concentration is presented in Appendix C.1, Table

2.1. The maximum modeled air concentration was compared to ambient air PRGs published by

USEPA Region 9 (USEPA, 2004). PRGs are chemical concentrations back-calculated using

toxicity criteria and either a 1 x 10"6 target risk level for potential carcinogens or a hazard

quotient (HQ) of 1 for noncarcinogens. For purposes of this screening analysis, a HQ of 0.1

was used to add a ten-fold measure of safety to reduce the chance of omitting chemicals from

the list of COPCs that could contribute to a total hazard index (HI) of 1. To accomplish this,

PRGs for noncarcinogenic chemicals (i.e., ammonia) were divided by 10 prior to comparison to

maximum detected values. Because the maximum modeled indoor air concentration exceeded

the ambient air PRG, ammonia was selected as an indoor air COPC for the car wash scenario.

i

Groundwater ammonia data were then used to generate a groundwater 95% Upper Confidence

Limit (UCL) value (Appendix C.3, Table 3) which was then modeled to estimate an airborne

95% UCL concentration a worker may be exposed to during water use in a car wash.

Documentation of the 95% UCL calculation is provided in Appendix C.3, Table 4. Appendix C.3,

Table 5, provides the model assumptions used to generate the 95% UCL air concentration.

Appendix C.1, Table 3.1.RME lists the modeled 95% UCL air concentration for car wash water

use.

The exposure parameters for the adult car wash worker are shown in Appendix C.1, Table

4.1.RME. Car wash workers are assumed to be exposed to volatile COPCs in indoor air only.

For the inhalation pathway, the exposure time was assumed to be equivalent to a typical 8-hour

work day (USEPA, 1997a). An exposure frequency of 250 days/year was used, which

represents the 95th percentile number of days worked per year. The default high-end exposure

duration of 25 years was used (USEPA, 1997a). As recommended in FtAGS (USEPA, 1989),

the averaging time for noncarcinogens was set equal to the exposure duration, and the

averaging time for carcinogens was the standard USEPA lifetime duration (70 years). The

equation used for the calculation of carcinogenic and noncarcinogenic intakes of ammonia is

presented in Appendix C.1, Table 4.1.RME.


DRAFT FINAL

A chronic inhalation toxicity criterion (i.e., RfC) for ammonia was obtained from EPA's Integrated

Risk Information System (IRIS) (USEPA, 2005) and. is provided in Appendix C.1, Table 5.2.

Because ammonia has not been classified as to carcinogenicity by EPA, no carcinogenic

toxicity criteria were available for use in this evaluation (Appendix C.1, Table 6.2). A toxicity

profile for ammonia is provided in Appendix E.

Risk estimation is undertaken by combining the toxicity factors and exposure assessment

equations to calculate estimates of risks. Non-carcinogenic risks are reported as compound-

specific hazard quotients (HQs) that are summed to provide a total receptor hazard index (HI).

In general, His that are less than 1 are not of regulatory concern; however, a HI of greater than

1 does not automatically indicate that an adverse effect will occur and should not automatically

be interpreted as posing an unacceptable risk to the exposed population.

The estimated ammonia HQ for the inhalation pathway is listed for the future car wash worker

receptor exposed to ammonia in groundwater in Appendix C.1, Table 7.1. The HQ for the RME

receptor exceeded the target HI of 1 (HI of 90). The highest concentrations of ammonia were

seen in monitoring wells: B1-04, B5-03, W5-05, B8-04, B7-03, and B6-03.

The above groundwater risk calculations for the future car wash worker receptor exposed to

ammonia are consistent with EPA's baseline risk assessment for the Northern Study Area

presented in the MSGRP Rl.

Surface Water

EPA ORD and July 2005 surface water ammonia data for the HBHA Pond were evaluated for

potential impacts to human health. Human receptors could potentially contact ammonia in

surface water while using the HBHA Pond for recreational purposes. The most likely receptor to

utilize this area is a teenager (ages 12 to 18). The teenage recreational user is likely to be

exposed to contaminants in surface water by dermal contact during wading. Even though the

HBHA Pond has surface water of sufficient depth to support swimming, wading is likely to be the

most common recreational activity. Ingestion of surface water is not quantitatively evaluated for

wading since it is unlikely that teenagers would ingest more than a negligible amount of surface

water during wading. Inhalation of ammonia from surface water is assumed to be negligible

because the levels of this compound released from surface water would be diluted and


DRAFT FINAL

dispersed into ambient air. Because wading exposures would allow for contact with only

shallow surface water (i.e., < 2 feet in depth), shallow surface water data presented in Appendix

C.2, Table 2 have been considered in this evaluation.

Due to a lack of oral toxicity values for ammonia that could be adjusted for applicability to the

dermal route of exposure, ammonia could not be quantitatively evaluated for dermal contact

hazard. ' Instead, ammonia was qualitatively evaluated by comparison of detected

concentrations in shallow surface water data to a value of 30 mg/L (Appendix C.1, Table 2.2).

This value is a lifetime health advisory provided in the Drinking Water Standards on Health

Advisories (USEPA, 2004b) for drinking water exposures and is specifically related to a taste

threshold. A safe concentration may be higher than this value. The maximum detected shallow

surface water concentration (17.2 mg/L) is below this drinking water value (30 mg/L).

Therefore, ammonia in shallow surface water was not selected as a human health COPC and

no further evaluation was conducted for ammonia in surface water.

Soil

Surface soil samples (0-6 inches) were collected in July 2005 at area RC, representative of the

approximate location of a potential recreation trail planned by the City of Woburn. Analytical

results of metals detected in individual soil samples collected from area RC are presented in

Appendix C.2, Table 3. Sampling locations are shown in Figure 2-6.

Human receptors could potentially contact contaminants in surface soil while using the upland

areas of the Wells G&H wetland for recreational purposes. The most likely receptors to utilize

this area, which is planned for development as recreational space, include adult and young child

recreational users. The recreational user is likely to be exposed to contaminants in surface soil

by incidental ingestion and dermal contact. Inhalation of metals from surface soil is assumed to

be negligible because the low levels of airborne particulates would be diluted and dispersed into

ambient air.

Surface soil data are summarized in Appendix C.1, Table 2.3. The soil summary table provides

the frequency of detection, range of detection limits, range of detected concentrations, and

location of maximum detected result for each detected metal. Because hexavalent chromium


DRAFT FINAL

analysis was not performed, total chromium detected in surface soil is conservatively assumed

to exist as hexavalent chromium., i

The maximum detected concentration of each metal in soil was compared to Region 9

residential soil PRGs (USEPA, 2004) adjusted to a HQ of 0.1 for noncarcinogens. The

comparison of maximum concentrations to PRGs is presented in Appendix C.1, Table 2.3.

Essential human nutrients that lacked screening criteria (i.e., calcium, magnesium, iron,

potassium, and sodium) were eliminated prior to the screening process. Essential nutrients are

unlikely to cause substantial toxicity at concentrations commonly encountered. Copper was

also eliminated since it is abundant in the earth's crust and unlikely to cause substantial toxicity

at concentrations commonly encountered. Since PRGs were not available for lead, the

maximum detected lead concentration was evaluated relative to the residential soil screening

level of 400 mg/kg (USEPA, 1994a).

The maximum detected results for aluminum, antimony, chromium, manganese, and vanadium

exceeded their respective PRGs and were selected as future surface soil COPCs. As a

conservative approach, the maximum detected concentration of each surface soil COPC was

used as the exposure point concentration in the quantitative evaluation. The maximum detected

concentrations are presented in Appendix C.1, Table 3.2.RME. None of the COPCs identified

are classified as ingestion or dermal contact carcinogens. Therefore, carcinogenic risks

associated with future surface soil exposures were not estimated.

The exposure parameters for the young child recreational user scenario are shown in Appendix

C.1, Table 4.2.RME. Because only non-carcinogenic hazards will be estimated for soil, the

young child is the most sensitive receptor and provides the most conservative estimate of non-

carcinogenic hazard. Therefore, the adult hazard estimates have not been presented. For the

surface soil ingestion pathway, the default RME soil ingestion rate (200 mg/kg; USEPA, 1994b)

for young child residents was used. Consistent with the Aberjona River Study human health risk

assessment, it was assumed that the young child recreational user may visit the RC area and

engage in activities resulting in surface soil exposure for 3 days per week for the warmest 6

months of the year (78 days/year). The fraction of surface soil ingested from the area was

assumed to be 50%. Because each of the soil COPCs lacked EPA recommended dermal

absorption factors, dermal exposures were not assessed. The default high-end exposure

duration of 6 years and a 15 kg body weight were used (USEPA, 1994b). The averaging time


DRAFT FINAL

for noncarcinogens was set equal to the exposure duration (USEPA, 1989). The equations

used for the calculation of non-carcinogenic intakes of metals are presented in Appendix C.1,

Table 4.2.RME.

The chronic toxicity criteria were obtained from EPA's Integrated Risk Information System (IRIS)

(USEPA, 2005). This source lists the most recent toxicity values recommended by USEPA for

use in human health risk assessments. In the event that toxicity values for a COPC were not

available through IRIS, provisional toxicity values were obtained from the Superfund Technical

Support Center (STSC), a division of USEPA. Appendix C.1, Table 5.1 summarizes the oral

non-carcinogenic toxicity values (i.e., RfDs) and the corresponding critical effects for the soil

COPCs. As stated previously, no carcinogenic COPCs were identified in surface soil (see

Appendix C.1, Table 6.1).

The estimated HI for the surface soil ingestion pathway is listed for the future young child

recreational user exposed to metals in surface soil in Appendix C.1, Table 7.2. The HI for the

RME receptor is 0.2, which does not exceed the target HI of 1.

The above surface soil risk calculations for future recreational receptors exposed to metals are

consistent with EPA's baseline risk assessment for the Southern Study Area presented in the

MSGRPRI.

4.2 Ecological Risk Evaluation

The ecological risk evaluation includes a quantitative evaluation of EPA ORD and July 2005

surface water ammonia data. Other surface water quality parameters measured have not been

included in this evaluation because: (1) the parameter was not detected (e.g., bromide); (2)

detected concentrations were significantly below conservative screening criteria (e.g., chloride

and fluoride); or (3) the parameter is a nutrient/dietary component and is unlikely to be toxic at

the levels detected (e.g., phosphate and nitrate).

Ammonia is known to be highly toxic to aquatic life including many species of fish and

invertebrates in fresh water (EPA, 1999). In natural waters, ammonia primarily exists in two

forms, un-ionized ammonia (NH3) and ammonium ion (NH4+), which are in equilibrium with each

other, and the forms present are dependent on the chemical conditions of the water, particularly


DRAFT FINAL

pH and temperature. These speciation relationships are important to ammonia toxicity because

un-ionized ammonia ,is much more toxic to aquatic receptors than ammonium ion.

For the purposes of this report, the evaluation of ecological risk resulting from potential

exposure to aquatic jife was based on the subset of surface water data collected from the HBHA

Pond. These data were compared to surface water quality benchmarks to identify potential risk

to aquatic life in the pond.

The surface water data collected for HBHA Pond indicate exceedances of the National

Recommended Water Quality Criteria (NRWQC) for ammonia (EPA, 2002). The NRWQC for

ammonia is dependent on pH and temperature (Appendix D). The NRWQC criteria are based

on both invertebrates and fish toxicity testing data. The selected criteria used for HBHA Pond,

are based on the absence of sensitive fish (trout) in the habitat for the CMC (acute criteria) and

the absence of fish early life stages for the CCC (chronic criterion). The CMC represents the 1-

hour average concentration that is not to be exceeded more than once every 3 years, on

average. The CCC represents the 30-day average concentration of total ammonia-nitrogen that

is not to be exceeded more than once every 3 years. The selected CCC assumes that no early

life stages of fish are likely to be present. If the ammonia CCC criteria protective of early-life

stages of fish were utilized, additional areas of exceedances during lower temperature

conditions would be identified because below 15 degrees centigrade (°C), the CCC values for

the category "early-life stages of fish present" are lower than the CCC values calculated for the

category "early life stages of fish absent" (refer to Appendix D).

Of the 165 total surface water samples presented, 125 had results for pH, temperature, and

ammonia, thereby allowing for calculation of and comparison to the criteria concentrations

(Table 4-1). Of the 125 samples evaluated, 84 exceeded the CCC and 39 exceeded the CMC.

The majority of the exceedances occurred in deeper water. All of the exceedances of the CMC

(acute criteria) occurred in samples from 4.9 feet or more in depth below the surface. The

samples from the northern multi-level (NML) sampler indicated consistent ammonia CCC

exceedances below a depth of 4 feet for all samples. At the HBHA Pond outlet, three of the five

measured ammonia concentrations exceeded the CCC value in May 2000, August 2000, and

September 2001, with measured ammonia concentrations in the surface water (0.3 feet below

the surface) ranging from 8 to 17 mg/L (Table 4-1).


l«

DRAFT FINAL

The EPA ORD and .July 2005 surface water data from HBHA Pond indicate that there are

numerous exceedances of ammonia criteria throughout the pond. These data indicate a

potential risk to aquatic life from the exposure to ammonia in HBHA Pond.

4.3 Impact of Findings on RAOs and PRGs

Based on the results of the human health and ecological risk evaluations presented in Sections

4.1 and 4.2, ammonia in groundwater was determined to be associated with human health risks

in excess of risk management guidelines and ammonia in surface water exceeds NRWQCs.

Therefore, the current RAO for groundwater will be modified to include ammonia as follows:

> Prevent exposures associated with a HI > 1 and/or ILCR > 10"6 to lO'4 by meeting

the associated PRGs for the following scenarios:

• Vapor inhalation of benzene, trichloroethene, naphthalene, 1,2-dichloroethene,

and ammonia by a car wash worker using groundwater in the car wash

The PRG for ammonia in groundwater, associated with a HQ of 1, is 4 mg/L. The ammonia

PRG was calculated using the same methods and assumptions employed for the HQ calculation

for the car wash worker exposed to ammonia in groundwater. Additional details regarding the

calculation of the ammonia PRG is provided in Appendix C.3.

The current RAO for surface water will be modified to include ammonia as follows:

> Protect aquatic life from arsenic, benzene, and ammonia above levels indicative of

impairment or provide alternate habitat in the event that HBHA Pond is used as a

component of the remedy. Meet ARARs for the protection of aquatic life.

The NRWQC is the PRG for ammonia in surface water. Because the NRWQC for ammonia is

pH and temperature dependent, tables and formulas provided in Appendix D should be used to

calculate the appropriate value, based on site-specific pH and temperature data.


m DRAFT FINAL

i

5.0 IMPACT OF FINDINGS ON THE JUNE 2005 PROPOSED PLANm

1 ,|

Based on an evaluation of the data presented above, a human health risk above the EPA targetm

HI was identified due to elevated concentrations of ammonia in groundwater and an

unacceptable risk to aquatic life in the HBHA Pond was identified due to the exceedances of the

NRWQC for ammonia. The RAOs and PRGs for ammonia in both groundwater and surface

water would be addressed by the current preferred remedial alternatives identified in the June

"* , 2005 Proposed Plan.

<* The remedial alternatives evaluated in the FS for groundwater included:

IB • Alternative GW-1: No Action Alternative

• Alternative GW-2: Pond Intercept with Monitoring and Institutional Controls

m • Alternative GW-3: Plume Intercept by Groundwater Extraction, Treatment and Discharge

and Monitoring with Institutional Controls

ig * Alternative GW-4: Plume Intercept by In-Situ Groundwater Treatment and Monitoring

with Institutional Controls

tfWith the addition of ammonia as a COC, the technical applicability of Alternative GW-4: Plume

' Intercept by In-Situ Groundwater Treatment and Monitoring with Institutional Controls may beil'IB

further compromised since it is highly uncertain that a reactive wall material exists that is

effective for removing ammonia However, Preferred Alternative GW-4 for the West Hide Pile,tf

In-situ Enhanced Bioremediation, would reverse observed reducing conditions to oxidizing

conditions, thereby decreasing ammonia concentrations associated with the West Hide Pile.till Based on the evaluation criteria presented in the FS, the addition of ammonia as a COC does

not substantially affect the overall evaluation outcome for the groundwater alternatives.m

The current preferred groundwater remedy identified in the June 2005 Proposed Plan is

<• Alternative GW-2 - Pond Intercept with Monitoring and Institutional Controls. Alternative GW-2

protects human health by preventing or controlling potential exposures to contaminated

m groundwater through institutional controls. GW-2 also includes conducting long-term monitoring

of the groundwater, surface water, and sediments to evaluate the status and migration of

— contaminants and the effectiveness of the remedy. This alternative, coupled with Alternative

HBHA-4 -Storm Water Bypass, Sediment Retention, Partial Dredging and Restoration, and

mRI051306DF 5-1 Tetra Tech NUS, Inc.

DRAFT FINAL

Monitoring, also decreases the downstream migration of contaminated groundwater by

intercepting it at the,northern portion of the HBHA Pond where natural attenuation processes

decrease contaminant concentrations.

Alternative HBHA-4 divides HBHA Pond into two main areas using a system of cofferdams. The

southern portion of the HBHA Pond would be dredged to remove contaminated sediments and

restored. The northern portion of the Pond would be incorporated into the cleanup plan as a

sediment retention basin. It would be used to intercept contaminated groundwater, and

maintain a chemocline in the surface water to degrade and sequester contaminants in the deep

portions of the pond (chemocline is a transition layer which separates the more contaminated

deep surface water from the less contaminated shallow surface water). Between the first and

second low-head cofferdams, an aeration treatment system would be designed to further

decrease contaminants of concern (e.g. precipitation, biological degradation/transformation,

volatilization).

The alternatives presented in the June 2005 Proposed Plan will adequately address the risks

associated with ammonia in groundwater and will address both the human health and ecological

RAOs. Similar to arsenic and benzene, the highest concentrations of ammonia would be

sequestered in the deeper portions of the northern HBHA Pond. The design of the aeration

treatment system would further decrease ammonia concentrations by promoting the conversion

of ammonia to nitrites and nitrates. Monitoring parameters for Alternatives GW-2 and HBHA-4

would require modification to include analysis for ammonia in both groundwater and surface

water, as well as nitrites, nitrates, pH and temperature in surface water. Since the ammonia

would be concentrated in a smaller area of the HBHA Pond, a pre-design study should be

conducted to determine the optimum aeration/oxygenation treatment system. In addition, the

production of ammonia at the West Hide Pile would be decreased due to the oxidized

conditions.

Additional pre-design surface water investigations would also be necessary to further evaluate

ammonia background conditions (e.g. New Boston Street Drainway, Landfill Creek, and the

East Drainage Ditch, as well as NSTAR ROW Culvert/ Drainage Ditch).


— DRAFT FINAL

6.0 SUMMARYm

' '!Based upon further evaluation of groundwater and surface conditions and the findings

"** i' presented in this Technical Memorandum, EPA is identifying ammonia as an additional

contaminant of concern in groundwater and surface water for Industri-plex OU-2. In addition to

** the previously identified contaminants of concerns (e.g. arsenic, benzene) presented in the

MSGRP Rl, high concentrations of ammonia are also present in the contaminated groundwater

•* plumes, which migrate and discharge into the HBHA Pond. These high concentrations of

ammonia in the groundwater present a human health risk to future commercial workers during

«i car wash operations. High concentrations of ammonia are also present in deep surface water of

the HBHA Pond, as a result of the contaminated groundwater plumes discharge in the pond.

— Concentrations of ammonia in surface water of the HBHA Pond exceed NRWQC, and

contribute to unacceptable ecological risks to aquatic life in the pond.

The fate and transport of ammonia is similar to the fate and transport patterns observed for

dissolved arsenic groundwater plumes. The surface water data indicate that the chemocline in

the HBHA Pond is effectively sequestering the highest concentrations of ammonia at depth. In

addition, other natural biological, chemical, and physical attenuation processes are effectively

decreasing ammonia concentrations in the water column from the deeper portions to the1 shallow depths prior to its discharge from the HBHA Pond.

nil

The addition of ammonia as a contaminant of concern does not alter the preferred remedial

'* alternatives identified in the June 2005 Proposed Plan, which would also adequately address

ammonia concentrations. Preferred Alternative GW-2 - Pond Intercept and Monitoring with

in Institutional Controls would incorporate ammonia and remain protective; Preferred Alternative

GW-4 for the West Hide Pile, In-situ Enhanced Bioremediation, would reverse observed

m reducing conditions to oxidizing conditions, thereby reducing ammonia concentrations; and

Preferred Alternative HBHA-4 would also intercept ammonia plumes, continue to sequester/treat

contaminants (including ammonia) below the chemocline, and further reduce contaminants

below NRWQC via an appropriately designed aeration treatment system. Pre-design

investigations would include monitoring for ammonia to ensure the cofferdams associated with

the northern portion of the HBHA Pond are properly located to intercept the contaminated

groundwater plumes, including ammonia, and the aeration treatment system is appropriatelyM

designed to reduce contaminants below NRWQC. Further pre-design studies would be

m .RI051306DF 6-1 Tetra Tech NUS, Inc.

DRAFT FINAL

implemented to ensure the aeration treatment system is properly designed, and to further

evaluate ammonia background conditions.

EPA also evaluated risks for the soil samples collected between the former production wells

G&H. The soil samples were analyzed for heavy metals and the concentrations detected were

relatively low in all samples. Based on the available data, EPA determined that human health

risks did not exceed EPA's risk range, Feasibility Study (FS) Remedial Action Objectives (RAO),

or FS Preliminary Remediation Goals (PRO) as presented in the FS.

EPA believes that the addition of ammonia as a COC does not substantially affect the overall

evaluation outcome, or alter the cost, scope, or performance of the alternatives identified in the

June 2005 FS and Proposed Plan.


TABLES

TABLE 2-1GROUNDWATER WET CHEMISTRY ANALYTICAL RESULTS

DRAFT FINAL TECHNICAL MEMORANDUMiNDUSTRI-PLEX SITE

WOBURN, MASSACHUSETTS

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source

Wet Chemistry Analysis (MG/L)

Alkalinity to pH 4.5


Bicarbonate

Carbonate (MG/L as Ca)

Dissolved Organic Carbon

Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate

Total Phosphorus as PO4 water

Total Suspended Solids

CB1-04-GW-01 NS-1 10701B1-04

11/7/2001

70.03

None

Unfiltered

O'Brien & Gere

NANANANA

9230.070 J

0.050 J

2150

NA64.7

NA

CB2-05-GW-02

B2-05

8/17/2001

53.1

None

Unfiltered

O'Brien & Gere

2150.41 U

2150.41 U

NA0.072 UJ

0.034 J

13.3

560

0.56 J

203

CB2-05-GW-03R

B2-05

8/17/2001

43.99

None

Unfiltered

O'Brien & Gere

4590.41 U

4590.41 U

NA

0.043 UJ

0.041 J

73.0

420

0.45 J

24.0

CB2-06-GW-02NS

B2-06

8/17/2001

62.41

None

Unfiltered

O'Brien & Gere

248

0.41 U

248

0.41 U

NA

0.040 UJ

0.075

8.51

590

0.46 J

430

CB3-02-GW-01 NS

B3-02

7/9/2001

60.04

^one

Unfiltered

O'Brien & Gere

1500

0.41 U

1500

0.41 U

NA

0.11

0.015 U

270 J

128

1.82 J

155

CB3-02-GW-03

B3-02

7/9/2001

55.34

Mone

Unfiltered

O'Brien & Gere

1670-

0.41 U

1670

0.41 U

NA

0.097 J

0.015 U

322 J

196

2.1 J

31.0

CB3-03-GW-03

B3-03

7/16/2001

39.6

None

Unfiltered

O'Brien & Gere

645

0.41 U

645

0.41 U

NA

0.040 U

0.015 U

49.5 J

3.0 U

1.13

126 J

CB4-03-GW-03

B4-03

7/10/2001

19.32

None

Unfiltered

O'Brien & Gere

879

0.41 U

879

0.41 U

NA

0.049 UJ

0.015 U

156 J

135

0.25 J

8.4 J

CB4-04-GW-01 NS

B4-04

8/16/2001

55.99

None

Unfiltered

O'Brien & Gere

70.3

0.41 U

70.3

0.41 U

NA

0.040 UJ

0.041 J

2.7

640

0.74 J

83.0

CB4-04-GW-02NSB4-04

8/16/2001

45.06

None

Unfiltered

O'Brien & Gere

7.4

0.41 U

7.4

0.41 U

NA

0.040 UJ

0.14 J

1.87

570

9.33 J

1200

RI051306DFU - No! detected; UJ - Detection limit approximate; J - Quantitation approximate;

R - Rejected; NA - Not Analyzed; * - From dilution analysis Tetra Tech NUS, Inc.

TABLE 2-1 (cont.)GROUNDWATER WET CHEMISTRY ANALYTICAL RESULTSDRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 2 OF 11

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate



CB4-05-GW-03NSB4-05

8/31/2001

41.42

Mone

UnfilteredO'Brien & Gere

177

0.41 U

177

0.41 U

NA

0.040 U

0.040 J

21.9

1590

14.3

2020

CB5-01-GW-01

B5-01

7/16/2001

54.49

None


369

0.41 U

369

0.41 U

NA

0.040 U

0.018 J

16.3 J

1140

3.65

64.0 J

CB5-02-GW-02

B5-02

7/9/2001

52.19

None


2710

0.41 U

2710

0.41 U

NA

0.040 U

0.015 U

720 J

211

9.58 J

126

CB5-02-GW-03

B5-02

7/9/2001

44.42

None


1310

0.41 U

1310

0.41 U

NA

0.079 J

0.015 U

281 J

197

3.8 J

74.0

CB5-03-GW-03

B5-03

8/16/2001

36.37

None


10600

0.41 U

10600

0.41 U

NA

0.068 UJ

0.027 J

2710

1.5 U

12.3 J

4.0 J

CB6-03-GW-01

B6-03

7/18/2001

55.41

None


1500

0.41 U

1500

0.41 U

NA

0.040 U

0.015 U

276

61.0 J

6.65

12.0

CB6-03-GW-02

B6-03

7/19/2001

49.4

None


6720

0.41 U

6720

0.41 U

NA

0.059 J

0.034 J

1910

5.0

9.2

712

CB6-03-GW-03

B6-03

7/31/2001

39.4

None


2990

0.41 U

2990

0.41 U

NA

0.040 U

0.025 J

859

2.4 J

29.9

3.0 U

CB7-01-GW-01

B7-01

7/17/2001

50.77

None


650

0.41 U

650

0.41 U

NA

0.040 U

0.045 J

27.4

15.0 UJ

11.8

134 J

CB7-01-GW-03

B7-01

7/17/2001

-0.53

None


12.7

0.41 U

12.7

0.41 U

NA

4.63

0.015 U

0.13 U

39.0 J

0.13 U

7.6 J

RI051306DFU - Not detected; UJ - Detection limit approximate; J - Quantitation approximate;



Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate

Total Phosphorus as PCM water


CB7-02-GW-01

B7-02

7/16/2001

48.37

None

Unfiltered

O'Brien & Gere

6530.41 U

6530.41 U

MA0.040 U

0.105

76.0 J

9300.80

93.0 J

CB7-02-GW-02

B7-02

7/16/2001

39.07

None


42.30.41 U

42.3

0.41 U

NA

0.10 U

0.051

11.4 J

5200.31

36.0 J

CB7-03-GW-01

B7-03

7/25/2001

49.6

None


6160.41 U

6160.41 U

NA0.053 J

0.015 U

1955800.23

3.0 U

CB7-03-GW-02RB7-03

7/25/2001

34.4

None


1330

0.41 U

1330

0.41 U

NA0.040 U

0.076

3483503.06

3.0 U

CB7-03-GW-03

B7-03

7/25/2001

14.6

None


5070

0.41 U

5070

0.41 U

NA0.040 U

0.098

1380

3.0 J

13.9

9.6 J

CB8-01-GW-01

B8-01

7/17/2001

48.32Field Dup. CB8-01-GW-01UnfilteredO'Brien & Gere

97.5

0.41 U

97.5

0.41 U

NA0.040 U

0.015 U

4.92

287 J

0.37

4.0 J

CB8-01-GW-0199B8-01

7/17/2001


1060.41 U

1060.41 U

NA0.040 U

0.015 U

5.3283 .J

0.36

3.0 U

CB8-01-GW-01-AVGB8-01

7/17/2001


1000.41 U

1000.41 U

NA0.040 U

0.015 U

5.12900.36

2.8

CB8-01-GW-03

B8-01

7/17/2001

-6.18

None .


5190.41 U

5190.41 U

NA0.040 U

0.040 J

73.3

1020 J

0.48

48.0- J

CB8-04-GW-02NSB8-04

7/24/2001 -

26.67Field Dup. CB8-04-GW-02NS


7560

0.41 U

7560

0.41 U

NA0.040 U

0.062

2190

2.0 J

49.9

170 J




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source

Wet Chemistry Analysis (HIGH.)



Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate

Total Phosphorus as P04 water


CB8-04-GW-02NS99B8-04

7/24/2001

26.67

Field Dup. CB8-04-GW-02NSUnfiltered

O'Brien & Gere

7680

0.41 U

7680

0.41 U

NA0.040 U

0.016 J

2280

1.8 J

45.3

249 J

CB8-04-GW-02NS-AVGB8-04

7/24/2001

26.67

Field Dup. CB8-04-GW-02NS


7600

0.41 U

7600

0.41 U

NA

0.040 U

0.039

2200

1.948.0

210 __,

CB9-01-GW-01

B9-01

7/10/2001

45.29

None


7230.41 U

7230.41 U

NA2.62

0.015 U

583 J

2401.22 J

7.6 J

CB9-01-GW-03

B9-01

7/10/2001

22.59

None


2950

0.41 U

2950

0.41 U

NA0.040 U

0.124

891 J

9800.38 J

13.0

CB9-02-GW-02

B9-02

7/10/2001

28.09

None


9290.41 U

9290.41 U

NA0.040 U

0.075

47.0 J

3550

0.23 J

83.0

CB9-04-GW-01

B9-04

7/23/2001

54.55

None


-64.5

0.41 U

64.5

0.41 U

NA0.040 U

0.026 J

3.52

29.0

0.29

3.0 U

CB9-05-GW-01

B9-05

7/23/2001

45.46

None


51.3

0.41 U

51.3

0.41 U

NA0.040 U

0.019 J

2.17

52.0

0.15 J

3.0 U

CE3-02-GW-03

E3-02

7/25/2001

1.49

None


1840.41 U

1840.41 U

NA0.040 U

0.019 J

0.040 U

94.0

0.17

10.0 J

CE4-02-GW-01

E4-027/19/2001

55.48

None


1160

0.41 U

1160

0.41 U

NA0.040 U

0.119

12.2

15.0 U

0.28

148

CE4-03-GW-01NS-072301E4-03

7/23/2001

56.21

None


NANANANANA

0.096 J

0.021 J

104NA

0.57

NA




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

riltered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate

Total Phosphorus as PCM water


CE4-03-GW-03

E4-03

7/19/2001

39.91

Field Dup. CE4-03-GW-03

Unfiltered

O'Brien & Gere

3560.41 U

3560.41 U

MA0.040 U

0.026 J

0.38

133

0.81

12.0

CE4-03-GW-0399

E4-03

7/19/2001

39.91


Unfiltered

O'Brien & Gere

3420.41 U

342

0.41 U

NA

0.040 U

0.027 J

0.46

139

0.80

14.0

CE4-03-GW-03-AVG

E4-03

7/19/2001

39.91


Unfiltered

O'Brien & Gere

3500.41 U

3500.41 U

NA0.040 U

0.026

0.42

1400.80

13.0

CH1-04-GW-04

H1-04

7/18/2001

20.92

None


84.1

0.41 U

84.1

0.41 U

NA0.040 U

0.027 J

0.055 UJ

29.0 J

3.29

931

CH1-04-GW-05RH1-04

7/18/2001

11.62

^one

Unfiltered

O'Brien & Gere

1090.41 U

1090.41 U

NA0.040 U

0.044 J

0.092 UJ

34.0 J

0.15 J

46.0

CH2-02-GW-02

H2-02

7/12/2001

39.56

None

Unfiltered

O'Brien & Gere

43.5

0.41 U

43.5

0.41 U

NA

0.040 U

0.015 U

2.5 J

27.0

0.18

118 J

CH2-02-GW-05

H2-02

7/12/2001

15.26

None

Unfiltered

O'Brien & Gere

109

0.41 U

109

0.41 U

NA

0.040 U

0.015 U

2.54 J

530

0.15 J

3.6 J

CH2-04-GW-05

H2-04

7/12/2001

-0.81

None

Unfiltered

O'Brien & Gere

74.4

0.41 U

74.4

0.41 U

NA

0.040 U

0.015 U

0.63 J

169

0.13 U

46.0 J

CH2-04-GW-06

H2-04

7/12/2001

-11.51

None

Unfiltered

O'Brien & Gere

1630.41 U

1630.41 U

NA

0.040 U

0.015 U

0.24 UJ

281

0.13 U

28.0 J

CL2-03-GW-01

L2-03

7/11/2001

46.17

None

Unfiltered

O'Brien & Gere

17.9

0.41 U

17.9

0.41 U

NA0.51

0.015 U

0.18 UJ

36.0

0.13 U

7.2 J




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate



CL2-03-GW-02

L2-03

7/11/2001

35.27

Field Dup. CL2-03-GW-02

Unfiltered

O'Brien & Gere

29.9

0.41 U

29.9

0.41 U

NA0.39

0.034 J

0.059 UJ

27.0

0.85 J

341

CL2-03-GW-0299L2-03

7/11/2001

35.27

Field Dup. CL2-03-GW-02

Unfiltered

O'Brien & Gere

30.1

0.41 U

30.1

0.41 U

NA0.39

0.015 J

0.19 UJ

30.0

0.18 J

261

CL2-03-GW-02-AVGL2-03

7/11/2001

35.27Field Dup. CL2-03-GW-02


30.0

0.41 U

30.0

0.41 U

NA0.39

0.024

0.059 UJ

29.0

0.52

300

CL2-05-GW-01 NSL2-05

7/11/2001

45.67

None

Unfiltered

O'Brien & Gere

77.7

0.41 U

77.7

0.41 U

NA0.040 U

0.090

11.3 J

15.0 U

0.45 J

167

CL2-05-GW-03

L2-05

7/11/2001

25.87

None


74.0

0.41 U

74.0

0.41 U

NA0.92

0.015 U

0.11 UJ

41.0

0.13 U

3.0 U

CW5-03-GW-01

W5-03

7/13/2001

47.15

None

Unfiltered

O'Brien & Gere

1140.41 U

1140.41 U

NA0.040 U

0.020 J

4.0 J

3230.45

8.4 J

CW5-03-GW-02RW5-03

7/13/2001

22.35Field Dup. CW5-03-GW-02R


448

0.41 U

448

0.41 U

NA

0.068 UJ

0.10

71.3 J

1700

0.95

86.0 J

CW5-03-GW-02R99W5-03

7/13/2001 -



454

0.41 U

454

0.41 U

NA

0.069 UJ

0.099

61.5 J

1700

0.74

62.0 J

CW5-03-GW-02R-AVGW5-03

7/13/2001


Unfiltered

O'Brien & Gere

450

0.41 U

450

0.41 U

NA

0.068 UJ

0.10

66.0

1700

0.84

•74.0

CW5-03-GW-03NSW5-03

7/23/2001

-2.15

None


479

0.41 U

479

0.41 U

NA

0.20 U

0.277

249

3210

0.35

200 J




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate



CW5-05-GW-02RW5-05

7/13/2001

25.03

None


10400

0.41 U

10400

0.41 U

NA0.13 U

0.057

2370 J

23.3

0.60

6.8 J

CW5-05-GW-03

W5-05

7/13/2001

6.18

None


4430

0.41 U

4430

0.41 U

NA0.29 U

0.037 J

616 J

2030

0.93

33.0 J

CW5-08-GW-01

W5-08

7/30/2001

52.39

None


45.8

0.41 U

45.8

0.41 U

NA0.040 U

0.021 J

1.418.2

0.13 U

6.8 J

P1-01-GW-01-041201P1-01

4/12/2001

45.62

None


1020.41 U

1020.41 U

NA0.30

0.015 UJ

1.97

8.30.13 J

3.0 U

P1-01-GW-01R

P1-01

7/27/2001

42.35

None


2450.41 U

2450.41 U

NA0.86

0.112

1.42

36.0

0.43

20.0

P1-01-GW-02

P1-01

4/12/2001

36.32

None


201-

0.41 U

2010.41 U

NA2.25

0.015 UJ

0.11 U

34.3

0.13 U

9.6 J

P1-01-GW-02R

P1-01

5/25/2001

31.35

None


4500.41 U

4500.41 U

NA5.36

0.015 U

0.040 U

97.0

0.25 J

24.0

P1-01-GW-03R

P1-01

7/20/2001

24.02

None


1770.41 U

1770.41 U

NA4.23

0.015 U

0.040 U

61.0

0.59

187

P1-01-GW-04R

P1-01

7/27/2001

13.45

None


61.9

0.41 U

61.90.41 U

NA2.84

0.015 U

0.049 J

39.0

0.13 U

3.0 U

P1-01-GW-05R

P1-01

8/1/2001

3.35Field Dup. P1-01-GW-05RUnfilteredO'Brien & Gere

55.8

0.41 U

55.8

0.41 U

NA0.040 U

0.033 J

0.043 J

57.0

0.38

15.0




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

-iltered

3ata Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate



P1-01-GW-05R99P1-01

8/1/2001

3.35Field Dup. P1-01-GW-05RUnfiltered

O'Brien & Gere

58.4

0.41 U

58.4

0.41 U

NA

0.040 U

0.034 J

0.059 J

56.0

0.37

20.0

P1-01-GW-05R-AVGP1-01

8/1/2001

3.35Field Dup. P1-01-GW-05RUnfiltered

O'Brien & Gere

57.0

0.41 U

57.0

0.41 U

NA

0.040 U

0.034

0.051

57.0

0.38

18.0

P1-01-GW-06NS-1 10701P1-01

11/7/2001

-5.15

None


61.7

0.41 U

61.7

0.41 U

14.2

0.040 U

0.034 J

0.30

2400 UJ

364

211000

P1-01-GW-07NS

P1-01

11/12/2001

-15.65

None

Unfiltered

O'Brien & Gere

33.8

0.41 U

33.8

0.41 U

5.4 U

0.16

0.015 U

0.16

48.0 UJ

26.2

480

P1-01-GW-08NS-111301P1-01

11/13/2001

-26.65

None

Unfiltered

O'Brien & Gere

64.9

0.41 U

64.9

0.41 U

7.2 U

0.20 U

0.015 U

0.27

75.0 U

36.2

2270 J

P1-02-GW-01

P1-02

7/20/2001

43.74

None


235

0.41 U

235

0.41 U

NA

0.040 U

0.021 . J

8.7

49.0

1.17

269

P1-02-GW-02

P1-02

5/25/2001

24.22

None


76.6

0.41 U

76.6

0.41 U

NA

0.040 U

0.015 U

19.5

39.0

0.59 J

104

P1-02-GW-03

P1-02

7/20/2001

13.52

None


45.3

0.41 U

45.3

0.41 U

NA

0.040 U

0.015 U

8.02

37.0

0.27

10.8 J

P1-02-GW-04

P1-02

7/30/2001

5.72Field Dup. P1-02-GW-04UnfilteredO'Brien & Gere

158

0.41 U

158

0.41 U

NA

0.047 J

0.015 U

0.28

38.0

0.17

14.0 J

P1-02-GW-0499P1-02

7/30/2001


160

0.41 U

160

0.41 U

NA

0.040 U

0.015 U

0.28

37.0

0.23

16.0 J




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate



P1-02-GW-04-AVGP1-02

7/30/2001

5.72

Field Dup. P1-02-GW-04

Unfiltered

O'Brien & Gere

1600.41 U

1600.41 U

NA0.034

0.015 U

0.28

38.0

0.20

15.0

P1-02-GW-05NS-1 10501P1-02

11/5/2001

-4.78

None

Unfiltered

O'Brien & Gere

147

0.41 U

147

0.41 U

5.3 U

0.040 U

0.037 J

1.13

1400 UJ

273

145000 J

P1-02-GW-06NS-1 10601P1-02

11/6/2001

-14.78

None

Unfiltered

O'Brien & Gere

148

0.41 U

148

0.41 U

5.9 U

0.040 U

0.028 J

1.15

2200 UJ

196

542000

P1-02-GW-07NSP1-02

11/8/2001

-22.28

None

Unfiltered

O'Brien & Gere

1340.41 U

1340.41 U

6.6 U

0.040 U

0.043 J

0.24

50.0 U

15.8

1910 J

P1-03-GW-01

P1-03

4/20/2001

46.8

None

Unfiltered

O'Brien & Gere

40.3

0.41 U

40.3

0.41 U

NA3.88

0.025 J

0.087 UJ

43.0

0.13 U

22.0

P1-03-GW-02

P1-03

4/20/2001

40.2

None

Unfiltered

O'Brien & Gere

57.0

0.41 U

57.0

0.41 U

NA6.64

0.015 U

0.079 UJ

86.0

0.25 J

30.0 U

P1-03-GW-03

P1-03

4/26/2001

29.2

None

Unfiltered

O'Brien & Gere

57.6

0.41 U

57.6

0.41 U

NA0.040 U

0.015 UJ

0.30 U

37.0

0.71

155

P1-03-GW-04

P1-03

4/26/2001

18.7

None

Unfiltered

O'Brien & Gere

1320.41 U

1320.41 U

NA0.040 U

0.015 UJ

0.11 U

56.0

0.35

80.0 J

P1-03-GW-05NSP1-03

5/16/2001 -

9.8

None

Unfiltered

O'Brien & Gere

85.1

0.41 U

85.1

0.41 U

NA0.040 U

0.020 J

0.74

1609.6

18700 '

P1-03-GW-06NS-051601

P1-03

5/16/2001

-0.3

None

Unfiltered

O'Brien & Gere

93.7

0.41 U

93.7

0.41 U

NA0.040 U

0.015 UJ

0.38

1500 J

121 '

826000




Sample Number

Sample LocationDate SampledSample Elevation

QC Identifier

FilteredData Source

Wet Chemistry Analysis (MG/L)Alkalinity to pH 4.5Alkalinity to pH 8.3BicarbonateCarbonate (MG/L as Ca)Dissolved Organic Carbon

NitrateNitrite-NNitrogen, AmmoniaSulfateTotal Phosphorus as PO4 waterTotal Suspended Solids

P1-04-GW-01

P1-04

4/20/200154.84

None


13.80.41 U13.80.41 U

NA0.64

0.015 U0.3418.20.20 J26.0

P1-04-GW-02

P1-044/20/2001


1190.41 U119

0.41 UNA

0.15

0.015 U1.8147.00.13 U6.0 J

P1-04-GW-0299P1-044/20/200144.84Field Dup. P1-04-GW-02UnfilteredO'Brien & Gere

1190.41 U119

0.41 UNA

0.15

0.015 U1.8349.00.13 U5.2 J

P1-04-GW-02-AVGP1-044/20/200144.84Field Dup. P1-04-GW-02UnfilteredO'Brien & Gere

1200.41 U120

0.41 UNA

0.150.015 U

1.848.00.13 U5.6

P1-04-GW-03

P1-04

4/24/200135.94

None


48.00.41 U48.00.41 U

NA7.87

0.015 U0.072 UJ

21.00.13 U

3.2 J

P1-04-GW-04

P1-044/24/200123.84

None


59.00.41 U59.00.41 U

NA1.05

0.015 U0.065 UJ35.00.51 J159

P1-05-GW-01

P1-054/19/200139.76

Mone


40.20.41 U40.20.41 U

NA2.54

0.015 U0.22 U41.00.13 U

3.0 U

P1-05-GW-02

P1-054/19/200130.66

None


91.30.41 U91.30.41 U

NA0.24

0.015 U1.4628.40.13 U3.0 U

P1-05-GW-03

P1-054/25/200124.66

None


96.90.41 U96.90.41 U

NA0.042 J0.027 J

1.8625.00.13 U

3.0 U

P1-05-GW-04NSP1-054/26/200112.06

None


62.00.41 U62.00.41 U

NA0.29

0.028 J0.16 U33.026.44960



TABLE 2-1 (cont.)GROUNDWATER WET CHEMISTRY ANALYTICAL RESULTSDRAFT FINAL TECHNICAL MEMORANDUMiNDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 11 OF 11

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source




Bicarbonate



Nitrate

Nitrite-N

Nitrogen, Ammonia

Sulfate

Total Phosphorus as P04 water


P1-05-GW-05

P1-05

4/30/2001

-1.34

None

Unfiltered

O'Brien & Gere

94.8

0.41 U

94.8

0.41 U

NA1.5

0.038 J

0.071 UJ

30.0

0.37

52.0 J

P1-06-GW-01

P1-06

4/13/2001

48.12

None

Unfiltered

O'Brien & Gere

24.0

0.41 U

24.0

0.41 U

NA3.06

0.015 U

0.042 UJ

76.0

0.13 U

3.0 U

P1-06-GW-02

P1-06

4/13/2001

40.62

*Jone

Unfiltered

O'Brien & Gere

41.9

0.41 U

41.9

0.41 U

NA5.65

0.015 U

0.072 UJ

31.0

0.14 J

35.0

P1-06-GW-03

P1-06

4/13/2001

31.12

None

Unfiltered

O'Brien & Gere

14.5

0.41 U

14.5

0.41 U

NA3.98

0.015 U

0.39

11.7

0.13 U

18.0

P1-06-GW-04

P1-06

4/13/2001

21.12

None

Unfiltered

O'Brien & Gere

53.2

0.41 U

53.2

0.41 U

NA

3.07

0.015 U

0.088 UJ

19.4

0.13 U

5.6 „

P1-07-GW-01

P1-07

4/18/2001

49.82


Unfiltered

O'Brien & Gere

34.3

0.41 U

34.3

0.41 U

NA

1.68

0.015 U

.0.053 UJ

31.0

0.13 U

5.2 J

P1-07-GW-0199

P1-07

4/18/2001

49.82


Unfiltered

O'Brien & Gere

35.4

0.41 U

35.4

0.41 U

NA

1.64

0.015 U

0.052 UJ

17.5

0.13 U

3.6 .

P1-07-GW-01-AVGP1-07

4/18/2001

49.82


Unfiltered

O'Brien & Gere

35.0

0.41 U

35.0

0.41 U

NA1.7

0.015 U

0.053 UJ

24.0

0.13 U

4.4

P1-07-GW-02

P1-07

4/30/2001

41.82

\lone

Unfiltered

O'Brien & Gere

46.3

0.41 U

46.3

0.41 U

NA0.63

0.026 J

0.085 UJ

16.0

0.22

32.0 J

P1-07-GW-03NS-073101

P1-07

7/31/2001

33.32

Mone

Unfiltered

O'Brien & Gere

NANANA

NA

NA

NA

NA

0.078 J

NA

70.0

NA

RI051306DF

U - Not detected; UJ - Detection limit approximate; J - Quantitation approximate;R - Rejected; NA - Not Analyzed; * - From dilution analysis Tetra Tech NUS, Inc.

TABLE 2-2NATURAL ATTENUATION STUDY - GROUNDWATER WET CHEMISTRY DATA

DRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITE


Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source

Wet Chemistry Analysis

Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

Units

MG/LASCA

MS/CM

MG/L

MG/L

MG/L

MG/L

MV

S.U.

•cNTU

A01-1-101499

A01

10/14/1999

53.58

None

Unfiltered

Robert Ford(EPA)

NM

3470

NA

NA

NM

63.7

-140

6.62

NR>

A01-2-101599

A01

10/15/1999

44.58

None

Unfiltered

Robert Ford(EPA)

NM

NM

NA

NA

NM

22.4

NA

NM

NR

NM

A02-1-101499

A02

10/14/1999

61.2

None

Unfiltered

Robert Ford(EPA)

1035

2870

NA

0.29

16.4

79.3

-119.1

6.7

NR

77.0

A03-1-101599

A03

10/15/1999

65.13

None

Unfiltered

Robert Ford(EPA)

273

2090

0.30

0.55

2.91

1.9

-39.5

6.61

NR

78.0

A03-2-101599

A03

10/15/1999

55.13

None

Unfiltered

Robert Ford(EPA)

159

818

0.30

0.36

2.93

1.6

-55.7

6.66

NR

43.0

A04-1-101599

A04

10/15/1999

59.21

None

Unfiltered

Robert Ford(EPA)

431

1345

0.040

0.14

2.14

18.8

-140.1

6.92

NR

40.0

A04-2-101599

A04

10/15/1999

49.46

None

Unfiltered

Robert Ford(EPA)

NM

NM

NA

NA

5.35

6.0

NA

NM

NR

NM

A04-3-101599

A04

10/15/1999

41.71

None

Unfiltered

Robert Ford(EPA)

233

NM

NA

NA

2.27

1.5

NA

NM

NR

NM

A05-1-101599

A05

10/15/1999

65.25

None

Unfiltered

Robert Ford(EPA)

452

1330

NA

0.14

2.54

3.4

-137.2

6.72

NR

5.1-

A06-1-101899

A06

10/18/1999

62.19

None

Unfiltered

Robert Ford(EPA)

738

2270

0.10

0.20

1.69

8.6

-148.1

7.27

NR

20.9

A06-2-101899

A06

10/18/1999

52.19

None

Unfiltered

Robert Ford(EPA)

409

1656

0.20

0.19

1.16

3.5

-7.1

6.26

NR

101



i

TABLE 2-2 (cont.)NATURAL ATTENUATION STUDY - GROUNDWATER WET CHEMISTRY DATADRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 2 OF 10

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

A07-1-101899

A07

10/18/1999

64.17

None

Unfiltered

Robert Ford(EPA)

194

854

0.040

0.58

1.73

0.80

14.4

6.03

NR

70

A07-2-101899

A07

10/18/1999

54.17

None

Unfiltered

Robert Ford(EPA)

148

974

NA

0.63

1.49

0.20

-83.7

6.39

NR

201

A08-1-101999

A08

10/19/1999

47.58

None

Unfiltered

Robert Ford(EPA)

79.0

296

0.40

0.53

2.89

0.90

-33.6

6.72

7.5

2.9

A08-2-101999

A08

10/19/1999

37.58

None

Unfiltered

Robert Ford(EPA)

240

730

0.020

0.92

1.75

1.3

-47.36.578.1

75.3

A08-3-101999

A08

10/19/1999

17.58

None

Unfiltered

Robert Ford(EPA)

1500

5560

NA

NA

8.551

96.4

-116.5

7.07

NR>

A09-1-101999

A09

10/19/1999

43.55

None

Unfiltered

Robert Ford(EPA)

43.0

308

0.30

0.34

0.84

0.80

40.36.14

NR

6.5

A09-2-101999

A09

10/19/1999

33.55

None

Unfiltered

Robert Ford(EPA)

184NM

NA

NA

2.551

10.7

NANM

11.4

NM

A10-2-102099

A10

10/20/1999

35.99

None

Unfiltered

Robert Ford(EPA)

144

5250

0.35

0.34

1.93

235.7

-195

7.14

11.1

7.3

A10-3-102099

A10

10/20/1999

25.99

None

Unfiltered

Robert Ford(EPA)

6460

13220

0.35

0.050

1.56

810.1

-260

7.51

11.6

8.9

A1 1-1-102099

A11

10/20/1999 -

45.49

None

Unfiltered

Robert Ford(EPA)

302

1046

0.40

0.25

1.43

8.8

-76.7

6.68

NR

2.5

A1 1-2-102099

A11

10/20/1999

35.49

None

Unfiltered

Robert Ford(EPA)

6350

11620

0.10

0.19

0.41

709.3

-155.4

7.8NR

50.0

A1 1-3-102099

A11

10/20/1999

25.49

None

Unfiltered

Robert Ford(EPA)

2100

11220

0.50

0.060

1.48

77.7-73.8

7.79NR

46.1




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

-iltered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

-errous Iron

Nitrogen, Ammonia

ORP

pH

Temperature

Turbidity

A12-1-102099

A12

10/20/1999

45.44

None

Unfiltered

Robert Ford(EPA)

236

1456

0.15

NA

1.99

16.3

-34

6.19

12.8

277

A12-2-102199

A12

10/21/1999

35.44

None

Unfiltered

Robert Ford(EPA)

404

3310

0.15

0.13

126

14.6

-116

6.37

11.9

195

A1 2-3-1 021 99

A12

10/21/1999

25.44

None

Unfiltered

Robert Ford(EPA)

456

3590

0.10

0.020

15.1

18.6

-102

6.58

12.6

52.3

A1 3-1 -102099

A13

10/20/1999

48.49

None

Unfiltered

Robert Ford(EPA)

65.0

242

0.15

0.42

1.24

1 142.6

-18.5

6.88

NR

9.6

A1 3-2-1 02099

A13

10/20/1999

38.49

^Jone

Unfiltered

Robert Ford(EPA)

12080

21500

0.10

0.040

0.80

1141.8

-237.4

8.04

NR

181

A1 3-4-1 02099

A13

10/20/1999

10.99

None

Unfiltered

Robert Ford(EPA)

NM

NM

NA

NA

NM

244.2

NA

NM

NR

NM

A14-1-113099

A14

11/30/1999

54.75

None

Unfiltered

Robert Ford(EPA)

_

130

524

0.15

0.39

8.75

3.4

1.9

5.56

5.2

2.9

A18-1-120299

A18

12/2/1999

30

Field Dup. A18-1-120299

Unfiltered

Robert Ford(EPA)

53.0

628

0.50

1.56

3.6

1.2

58.4

6.27

13.0

50.4

A20-1 -032800

A20

3/28/2000

44

None

Unfiltered

Robert Ford(EPA)

130

428

NA

0.080

12.2

2.0

-430

6.47

11.9

2.2

A20-2-032800

A20

3/28/2000

39

None

Unfiltered

Robert Ford(EPA)

88.0

880

NA

0.10

2.1

0.90

-470

6.21

12.4

2.5

A21 -1-033000

A21

3/30/2000

65.07~

Mone

Unfiltered

Robert Ford(EPA)

NM

264

NA

0.99

12.8

0.80

NA

6.62

13.4

3.4

RI051306DF



Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

A21-2-033000

A21

3/30/2000

57.07

None

Unfiltered

Robert Ford(EPA)

NM

1464

0.20

0.22

3.0

77.7

NA

6.88

10.2

6.3

A22-1-033100

A22

3/31/2000

64.38

None

Unfiltered

Robert Ford(EPA)

44.0

1315

0.30

3.38

15.5

9.8

125.6

5.53

13.5

2.8

A22-2-033100

A22

3/31/2000

59.38

None

Unfiltered

Robert Ford(EPA)

240

1112

0.20

0.68

18.4

31.7

25.7

6.24

11.8

4.7

A23-1-033100

A23

3/31/2000

64.28

None

Unfiltered

Robert Ford(EPA)

ND

1327

0.40

0.24

13.5

2.2

141.8

4.64

13.7

ND

A23-2-040300

A23

4/3/2000

57.28

None

Unfiltered

Robert Ford(EPA)

48.0

NM

NA

NA

21.5

2.2

NA

NM

NM

NM

Atlantic Ave.

Atlantic Ave.Drainway

4/5/2000

None

Unfiltered

Robert Ford(EPA)

50.0

NM

7.0

NA

0.035 U

0.10

95.07.14

11.1

NM

TW01-032900

TW01

3/29/2000

None

Unfiltered

Robert Ford(EPA)

4160

12660

NA

0.11

NM

874

-161

ND

11.1

6.2

TW01 -040301

TW01

4/3/2001

39

None

Unfiltered

Robert Ford(EPA)

5360

134100.30

0.27

30.75

1090-149.9

7.02

7.4

1.6

TW01-051700

TW01

5/17/2000

None

Unfiltered

Robert Ford(EPA)

5948

13430

0.60

0.020

12.5

1065

-214

7.2614.1

1.9

TW01-082300

TW01

8/23/2000 -

None

Unfiltered

Robert Ford(EPA)

7628

14820

0.20

4.88

2.35

897

-273

7.26

20.72.2

TW01-091101

TW01

9/11/2001

None

Unfiltered

Robert Ford(EPA)

7308

14770

NA

0.18

5.3

1380

-187

7.37

23.7

2.7

Ri051306DFU - Not detected; U J - Detection limit approximate; J - Quantitation approximate;



Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

TW02-032901

TW02

3/29/2001

34

None

Unfiltered

Robert Ford(EPA)

4080

8410

NA

0.40

0.10

1110

-137.6

7.67

8.6

2.0

TW02-040600

TW02

4/6/2000

None

Unfiltered

Robert Ford(EPA)

4030

9200

0.30

0.11

0.080

1260

-277.1

7.56

8.1

2.6

TW02-051600

TW02

5/16/2000

None

Unfiltered

Robert Ford(EPA)

4530

8850

0.10

0.020

0.15

1191

-265

7.72

16.8

1.3

TW02-082300

TW02

6/23/2000

None

Unfiltered

Robert Ford(EPA)

4440

9170

0.10

0.39

0.11

1170

-314.6

7.44

17.9

1.2

TW02-091 101

TW02

9/11/2001

None

Unfiltered

Robert Ford(EPA)

4072

8630

0.30

0.14

0.14

1180

-234

7.39

21.8

2.0

TW03-032900

TWOS

3/29/2000

35

None

Unfiltered

Robert Ford(EPA)

206

1266

0.60

0.54

ND

37.9

267

6.06

13.8

1.4

TW03-051600

TW03

5/16/2000

None

Unfiltered

Robert Ford(EPA)

_

210

1191

0.80

0.46

0.080

41.3

168.5

5.95

16.6

1.0

TW03-082200

TWOS

8/22/2000

None

Unfiltered

Robert Ford(EPA)

210

989

NA

0.46

0.030

37.9

NA

5.97

21.4-

3.7

TW04-032900

TW04

3/29/2000

None

Unfiltered

Robert Ford(EPA)

24.0

2240

NA

0.69

11.2

2.522.0

5.94

10.9

0.90

TW04-032901

TW04

3/29/2001

34

None

Unfiltered

Robert Ford(EPA)

122

2140

NA

1.19

3.06

1.9-13

6.73

7.5

1.4

TW04-051600

TW04

5/16/2000—

None

Unfiltered

Robert Ford(EPA)

94.0

2110

NA

0.18

19.6

2.5-17

6.19

15.4

0.40




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

TW04-082300

TW04

8/23/2000

None

Unfiltered

Robert Ford(EPA)

152

2230

NA

0.85

2.44

2.3

-243.5

6.13

18.7

0.80

TW04-091101

TW04

9/11/2001

None

Unfiltered

Robert Ford(EPA)

122

2170

NA

0.87

25.2

11.7

-114

6.13

22.8

1.0

TW05-051700

TWOS

5/17/2000

37

None

Unfiltered

Robert Ford(EPA)

69.0

6180

0.60

0.39

158.75

8.0

100

5.22

14.1

2.0

TW05-082300

TW05

8/23/2000

None

Unfiltered

Robert Ford(EPA)

74.0

7000

0.60

0.70

148

8.2

-162.3

5.12

18.9

1.5

TW05-091301

TWOS

9/13/2001

Field Dup. TW05-091301

Unfiltered

Robert Ford(EPA)

156

6530

NA

0.54

100.5

8.5

70.2

5.64

19.7

1.0

TW06-1-040500

TW06

4/5/2000

43.8

None

Unfiltered

Robert Ford(EPA)

67.0

477

NA

0.97

0.60

0.50

130.8

6.44

13.1

31.0

TW06-1-082200

TW06

8/22/2000

None

Unfiltered

Robert Ford(EPA)

-

76.0

578

0.80

0.17

0.48

1.0

130.8

6.15

21.9

10.2

TW06-2-051600

TW06

5/16/2000

None

Unfiltered

Robert Ford(EPA)

NM

430

0.30

0.25

NA

1.2

271

5.83

14.1

0.30

TW06-2-082200

TW06

8/22/2000

None

Unfiltered

Robert Ford(EPA)

37.5

136

0.80

2.07

0.010

1.3

260

5.83

20.5

1.7

TW06-3-040500

TW06

4/5/2000

33.55

None

Unfiltered

Robert Ford(EPA)

22.0

921

0.30

1.12

1.48

7.4

210.1

5.04

9.8

35.1

TW06-3-051600

TW06

5/16/2000

None

Unfiltered

Robert Ford(EPA)

32.0

944

0.20

0.15

1.37

8.4

195

5.25

13.7

0.70

RI051306DF



Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

TW06-3-082200

TW06

8/22/2000

None

Unfiltered

Robert Ford(EPA)

32.4

1019

0.80

NA

0.31

9.0

224.5

5.21

18.6

1.3

TW07-1-032901

TWO?

3/29/2001 -

43.74

Field Dup.TW07-1-032901

Unfiltered

Robert Ford(EPA)

136

1172

0.40

0.83

25.5

5.2

54.2

5.99

8.5

1.0

TW07-1 -040400

TW07

4/4/2000

None

Unfiltered

Robert Ford(EPA)

142

1151

0.060

0.28

16.6

5.6

44.2

6.16

13.1

1.1

TW07-1-051600

TW07

5/16/2000

None

Unfiltered

Robert Ford(EPA)

126

1283

NA

0.31

17.0

4.9

9.1

5.72

16.0

5.0

TW07-1 -082300

TW07

8/23/2000

None

Unfiltered

Robert Ford(EPA)

68.0

1374

0.10

0.66

14.1

5.3

-225.3

5.9

15.7

1.7

TW07-1-091101

TWQ7

9/11/2001

Field Dup. TW07-1-091101

Unfiltered

Robert Ford(EPA)

1061101

NA

0.86

15.9

7.4

56.0

5.65

17.6

3.7

TW07-2-032901

TW07

3/29/2001

40.99

None

Unfiltered

Robert Ford(EPA)

188

570

0.30

0.73

14.0

7.2

38.0

6.23

7.6

1.73

TW07-2-040500

TW07

4/5/2000

None

Unfiltered

Robert Ford(EPA)

114

1293

0.10

0.19

16.1

4.1

86.1

5.9

12.0

0.70

TW07-2-051600

TW07

5/16/2000

None

Unfiltered

Robert Ford(EPA)

122

940

0.10

0.060

15.6

5.5

-24.5

5.82

13.8

2.0

TW07-2-082300

TW07

8/23/2000

None

Unfiltered

Robert Ford(EPA)

208

1246

0.050

0.40

29.5

5.7

-258.8

6.07

17.1

0.90

TW07-2-091101

TW07

9/1 1/2001

None

Unfiltered

Robert Ford(EPA)

220749

NA

0.80

47.5

27.5

-33.6

5.9

18.8

0.60



TABLE 2-2 (cont.)NATURAL ATTENUATION STUDY • GROUNDWATER WET CHEMISTRY DATADRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 8 OF 10

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

-errous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

TW07-3-032901

TW07

3/29/2001

35.99

None

Unfiltered

Robert Ford(EPA)

1841919

0.10

0.80

57.0

18.2

7.96.14

9.71 48

TW07-3-040500

TW07

4/5/2000

None

Unfiltered

Robert Ford(EPA)

170

2150

0.050

0.17

26.6

14.9

-218.9

6.03

11.8

1.6

TW07-3-051600

TW07

5/16/2000

None

Unfiltered

Robert Ford(EPA)

146

2130

0.40

0.28

27.2

16.5

-53.1

5.86

15.3

3.0

TW07-3-082300

TW07

8/23/2000

None

Unfiltered

Robert Ford(EPA)

72.0

2220

0.050

0.40

21.1

19.3

-238.9

6.04

15.6

1.5

TW07-3-091101

TW07

9/11/2001


Unfiltered

Robert Ford(EPA)

122

2270

NA

0.40

12.9

8.7

-62.9

5.73

17.8

1.5

TW08-1 -040301

TWOS

4/3/2001

47.5

None

Unfiltered

Robert Ford(EPA)

1292

3260

0.40

0.74

0.28

405

-62.8

8.02

8.3

1.25

TW08-1 -040600

TWOS

4/6/2000

None

Unfiltered

Robert Ford(EPA)

2735

6.2

0.40

0.35

0.28

722

-262.7

8.02

6.7

13.4

TW08-1-051700

TW08

5/17/2000

None

Unfiltered

Robert Ford(EPA)

3060

6240

0.30

0.080

0.36

851

-215.6

7.82

15.5

5.0

TW08-1 -082300

TWOS

8/23/2000

None

Unfiltered

Robert Ford(EPA)

284

6600

NA

0.29

0.32

916

-287

7.8

20.6

2.9

TW08-1-091001

TWOS

9/10/2001

Field Dup.TW08-1-091001

Unfiltered

Robert Ford(EPA)

2592

5730

0.30

0.20

1.57

797

-302.6

7.66

21.3

0.80

TW08-2-051700

TWOS

5/17/2000

None

Unfiltered

Robert Ford(EPA)

3.0

58.0

NA

7.08

0.020

2.4

293.1

5.33

14.3

1.0

RI051306DF



Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)rerrous Iron

Nitrogen, Ammonia

ORP

pH

Temperature

Turbidity

TW08-3-040301

TWOS

4/3/2001

38

None

Unfiltered

Robert Ford(EPA)

3448

11840

0.20

0.29

25.4

303

-156.1

6.73

9.8

4.8

TW08-3-040600

TW08

4/6/2000

None

Unfiltered

Robert Ford(EPA)

2540

11070

0.30

0.22

2.41

229

-196.3

6.7

8.1

97.0

TW08-3-051700

TWOS

5/17/2000

None

Unfiltered

Robert Ford(EPA)

3232

11160

0.30

0.16

26.4

220

-204.9

6.63

15.9

29.0

TW08-3-082300

TW08

8/23/2000

None

Unfiltered

Robert Ford(EPA)

3496

11530

0.60

25.1

27.5

276

-154

6.78

22.1

8.1

TW08-3-091001

TWOS

9/10/2001

None

Unfiltered

Robert Ford(EPA)

3418

11820

0.20

0.54

23.1

365

-105.9

6.78

21.3

7.0

TW10-1-040201

TW10

4/2/2001

54.17

None

Unfiltered

Robert Ford(EPA)

-

33.0

210

0.40

0.42

2.42

0.90

-24.1

6.72

4.2

2.5

TW10-1-051600

TW10

5/16/2000

None

Unfiltered

Robert Ford(EPA)

134

474

0.20

0.13

3.14

2.3

-212.2

6.65

14.8

29.1

TW1 0-1 -082200

TW10

8/22/2000

None

Unfiltered

Robert Ford(EPA)

110

400

0.20

11.22

4.0

2.0

-281.5

6.45

22.0

0.50

TW10-1-091201

TW10

9/12/2001

-ield Dup.TW10-1-091201

Unfiltered

Robert Ford(EPA)

156

446

0.30

0.64

4.2

0.40

-139.5

6.67

21.5

0.40

TW10-2-040201

TW10

4/2/2001

49.17

None

Unfiltered

Robert Ford(EPA)

178

1362

0.20

0.61

21.4

18.0

21.3

6.38

4.9

12.5

TW10-2-051600

TW10

5/16/2000

None

Unfiltered

Robert Ford(EPA)

204

1504

0.30

0.27

14.2

26.8

-107.3

6.12

15.4

37.0




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

TW10-2-082200

TW10

8/22/2000

None

Unfiltered

Robert Ford(EPA)

210

1523

0.60

5.04

11.3

24.8

-253.7

6.04

20.8

1.6

TW10-2-091201

TW10

9/12/2001


Unfiltered

Robert Ford(EPA)

204

1445

0.20

0.25

20.927.4

-119

6.25

21.2

1.8

TW10-3-040201

TW10

4/2/200144.17

None

Unfiltered

Robert Ford(EPA)

260

1673

0.40

0.68

21.0

31.4

-133.6

6.46

6.6

3.4

TW10-3-051600

TW10

5/16/2000

None

Unfiltered

Robert Ford(EPA)

272

1705

0.20

0.18

15.5

35.2

-117.9

6.24

16.2

9.0

TW10-3-082200

TW10

8/22/2000

None

Unfiltered

Robert Ford(EPA)

288

1740

0.40

6.69

13.6

34.8

-285.1

6.26

19.0

1.8

TW10-3-091201

TW10

9/12/2001

-ield Dup.TW10-3-091201

Unfiltered

Robert Ford(EPA)

208

1624

0.40

0.33

20.4

33.8

-104.1

6.25

22.2

5.4

TW1 1-083000

TW11

8/30/2000

45.5

None

Unfiltered

Robert Ford(EPA)

-

77.0

968

0.20

0.60

0.43

1.5

153

6.14

17.7

14.6

TW12-1-083000

TW12

8/30/2000

45.5

None

Unfiltered

Robert Ford(EPA)

170

1002

0.0500.14

3.3

0.10-302

6.28

20.1

35.2

TW12-2-083000

TW12

8/30/2000

40.5

None

Unfiltered

Robert Ford(EPA)

126

1054

0.20

0.220.58

0.20

-249

6.25

20.1

6.7

TW13-083000

TW13

8/30/2000

45.5

None

Unfiltered

Robert Ford(EPA)

56.0

686NA

0.21

2.9

1.5-273

6.2822.4

6.0


R • Rejected; NA - Not Analyzed; * - From dilution analysis Tetra Tech NUS, Inc.

TABLE 2-3NATURAL ATTENUATION STUDY - SURFACE WATER WET CHEMISTRY DATA

DRAFT FINAL TECHNICIAL MEMORANDUMINDUSTRI-PLEX SITE


Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

Units

MG/LASCA

MS/CM

MG/L

MG/L

MG/L

MG/L

MV

S.U.

°C

NTU

Atlantic Ave.Drainway-040501Atlantic Ave.Drainway

4/5/2001

0

None

Unfiltered

Robert Ford(EPA)

NA

NA

NA

NA

NA

2.2

NA

NA

NA

NA

Atlantic Ave.Drainway-092004Atlantic Ave.Drainway

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

NANANANANA

0.70

NANANANA

Hall's Brook Inlet-092004Hall's Brook Inlet

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

NANANANANA

3.3NANANANA


4/5/2000

None

UnfilteredRobert Ford(EPA)

64.0

383

6.8

11.5

0.504

5.2

273.3

7.93

11.5

NM


4/5/2001

None

Unfiltered

Robert Ford(EPA)

NM

668

6.5

NA

0.272

5.5

168.9

6.86

11.0

NM


5/18/2000

None


78.8

555

NA

7.74

0.914

7.8

231

7.44

14.0

NM


8/30/2000

None

Unfiltered

Robert Ford(EPA)

106

548

4.0

4.03

NM

7.6

264

7.22

19.4

9.6


9/16/2001

None


66.2

593

NA

6.63

0.176

4.1

353.6

6.97

15.1

3.5

HBHA PondOutlet-040500HBHA PondOutlet

4/5/2000

None

Unfiltered

Robert Ford(EPA)

80.0

320

6.1

NA

0.727

7.4

68.1

6.7

12.0

NM



TABLE 2-3 (cont.)NATURAL ATTENUATION STUDY - SURFACE WATER WET CHEMISTRY DATADRAFT FINAL TECHNICIAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 2 OF 10

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity


4/5/2001

None

Unfiltered

Robert Ford(EPA)

NM

710

5.5

NA

1.4

6.9

78.6

6.76

10.9

NM


5/18/2000

None


81.6

544

NA

7.67

1.317

8.0

216

7.14

16.0

NM


8/30/2000

None


NM

760

NA

5.38

0.069

16.0

277

6.95

22.6

9.4


9/16/2001

None


115.6

799

NA

7.6

0.117

17.2

374.7

6.73

21.6

9.1


9/20/2004

0

None


NA

NA

NA

NA

NA

4.0

NA

NA

NA

NA

WC1 00-040201

WC100

4/2/2001

*Jone

Unfiltered

Robert Ford(EPA)

-

45.2

574

4.0

NA

0.20

5.3

177.1

5.23

4.5

4.3

WC100-040400

WC100

4/4/2000

None


74.0

419

NA

7.2

0.25

7.3

47.1

6.98

11.46

7.8

WC1 00-082500

WC100

8/25/2000

None


136

619NA

3.13

0.010

15.2

35.8

7.39

19.23

11.5

WC100-091701

WC100

9/17/2001

None


132

793

NA

6.4

0.020

17.9

217.8

6.56

16.3

9.5

WC100-1 13099

WC100

11/30/1999

Field Dup.WC100-1 13099UnfilteredRobert Ford(EPA)

84.0

275

3.0

3.24

NA

9.34

80.0

6.31

7.08

8.2




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORPpH

Temperature

Turbidity

WC150-040201

WC150

4/2/2001

None

Unfiltered

Robert Ford(EPA)

45.8

4934.0

NA

0.10

4.8

149.9

5.03

4.8

4.0

WC 150-040400

WC150

4/4/2000

Field Dup.WC150-040400Unfiltered

Robert Ford(EPA)

72.0

419NA

6.4

0.35

7.3

49.1

6.97

11.52

7.9

WC1 50-082500

WC150

8/25/2000

None

Unfiltered

Robert Ford(EPA)

2641071

NA4.6

0.030

44.0

-13.1

7.35

17.74

27.9

WC150-091701

WC150

9/17/2001

None


266

1203

NA

1.25

7.4

44.8

65.5

6.33

16.5

44.9

WC1 50-1 13099

WC150

11/30/1999

None

Unfiltered

Robert Ford(EPA)

72.0

276

3.0

3.07

NA

9.86

80.4

6.32

7.11

8.2

WC200-040201

WC200

4/2/2001

None


44.0

505

4.0

NA

0.10

5.1 .

73.5

5.82

4.9

4.0

WC200-040400

WC200

4/4/2000

None


90.0

438

NA

4.7

0.85

24.1

45.9

6.81

11.05

17.2

WC200-082500

WC200

8/25/2000

None

Unfiltered

Robert Ford(EPA)

748

2054

NA

0.14

17.4

61.0

-106.9

7.76

15.23

110

WC200-091701WC200

9/17/2001

None

Unfiltered

Robert Ford(EPA)

512

1959

0.10

1.89

21.0

79.6

-56

6.42

16.5

13.5

WC200-1 13099

WC200

11/30/1999

Field Dup.WC200-1 13099


236688

1.0

1.05

0.010

33.6

52.3

6.12

8.05

8.1




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode):errous Iron

Nitrogen, Ammonia

ORPpHTemperature

Turbidity

WC250-040201

WC250

4/2/2001

None


47.6

4864.0

NA

0.10

5.145.0

6.29

4.84.0

WC250-040400

WC250

4/4/2000

None


150693

NA2.91.38.0

48.3

6.59.95

32.7

WC250-082500

WC250

8/25/2000

None


8322462

0.20

0.10

45.4

119-159

8.02

15.23

43.3

WC250-091701

WC250

9/17/2001

None


7502644

NA1.98

46.25

115-128.9

6.616.0

13.5

WC275-040400

WC275

4/4/2000

None


194901

NA0.50

1.227.3

20.5

6.58

9.95

22.7

WC300-040201

WC300

4/2/2001

None


45.6

4743.5

NA0.20

5.231.1

6.53

4.94.3

WC300-091701

WC300

9/17/2001

None


9023075

NA2.0

54.25

151-151.5

6.57

15.7

13.2

WC50-040201

WC50

4/2/2001

None


46.2

6404.0

NA0.20

5.0155.7

5.14.04.3

WC50-040400

WC50

4/4/2000

None


66.0

418NA

7.00.45

7.648.2

7.03

11.39

9.7

WC50-082500

WC50

8/25/2000

None


142592

NA4.33

0.010

14.8

44.1

7.52

22.26

16.8




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORPpHTemperature

Turbidity

WC50-091701

WC50

9/17/2001

None


100

785

NA

6.93

0.010

16.4

219.4

6.58

16.4

8.8

WC50-1 13099

WC50

11/30/1999

None


72.0

274

3.03.29

0.030

9.36

80.4

6.34

7.07

10.2

WN100-040201

WN100

4/2/2001

None


52.7

7404.0

NA0.60

5.576.2

6.13

4.1

4.6

WN100-040400

WN100

4/4/2000

None


78.0

413NA

7.00.45

7.4132.3

6.95

10.82

9.8

WN100-082500

WN100

8/25/2000

None


141644

NA

2.77

0.99

14.7

33.3

7.28

18.54

14.5

WN100-113099

WN100

11/30/1999

None


70.0

279

3.0

3.58

0.020

9.87

103.2

6.32

7.14

7.9

WN150-040201

WN150

4/2/2001

None

Unfiltered

Robert Ford(EPA)

53.7

758

5.0

NA

0.60

6.0

75.7

6.16

4.1

4.0

WN1 50-040400

WN150

4/4/2000

None


80.0

415

NA

6.8

0.65

7.5

85.1

7.02

10.87

8.1

WN1 50-082500

WN150

8/25/2000

None


128

832

NA

2.01

2.16

15.5

15.5

7.16

17.76

35.6

WN150-1 13099

WN150

11/30/1999

None


130

331

3.0

2.89NA

17.0

101.1

6.22

7.29

16.2




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Altered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

PHTemperature

Turbidity

WN1 75-040400

WN175

4/4/2000

None


NM

420

NA

6.7

0.35

8.2

72.3

7.04

10.87

8.1

WN180-082500

WN180

8/25/2000

None


444

1544

0.30

0.13

9.7

68.8

-66.4

7.37

15.29

136

WN200-040201

WN200

4/2/2001

None

UnfilteredRobert FordJEPA)

53.7

758

4.0

NA

0.60

6.4

74.6

6.16

4.1

4.2

WN200-040400

WN200

4/4/2000

Field Dup.WN200-040400UnfilteredRobert Ford(EPA)

82.0

426

NA

6.7

0.50

8.0

78.3

7.05

10.89

7.7

WN200-082500

WN200

8/25/2000

None


682

1527

0.20

0.090

2.12

132

-44.6

7.2

14.28

55.2

WN200-1 13099

WN200

11/30/1999

None


-

254

800

1.0

1.45

0.050

42.5

48.0

6.08

9.44

47.3

WN225-040400

WN225

4/4/2000

vlone


78.0

452

NA

3.5

0.90

8.4

48.0

6.96

10.91

7.8

WN250-040201

WN250

4/2/2001

Mone


57.2

1255

4.0

NA

0.80

7.0

-19.5

6.71

4.4

4.4

WN250-040400

WN250

4/4/2000

None


1316

3590NA

0.485>

99.1

-118.2

7.19

10.83

5.7

WN270-040201

WN270

4/2/2901

None


55.9

1340

3.0

NA

1.0

6.8

-36.1

6.46

4.6

4.7




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORPpHTemperature

Turbidity

WN300-040400

WN300

4/4/2000

Field Dup.WN300-040400Unfiltered

Robert Ford(EPA)

2380

7650

NA

0.295>

597

-199.5

7.51

10.44

9.7

WN310-040201

WN310

4/2/2001

None

Unfiltered

Robert Ford(EPA)

360.9

2300

0.40

NA35.0

95.5

-40.1

6.5

6.4

39.1

WN50-040201

WN50

4/2/2001

None


50.5

6235.5

NA

0.45

5.4

104.8

6.34

4.1

8.2

WN50-040400

WN50

4/4/2000

None


74.0

412

NA

7.1

0.050

7.4

135

6.79

10.83

11.5

WN50-082500

WN50

8/25/2000

None


168600

NA

3.74

0.14

13.1

59.6

7.12

19.0

11.4

WN50-1 13099

WN50

11/30/1999

None


96.0

275

3.0

3.72

0.020

9.5

115.2

6.32

7.07

11.4

WS100-040201

WS100

4/2/2001

None


47.6

504

4.5

NA

0.10

5.1

52.2

6.17

5.3

4.2

WS100-040400

WS100

4/4/2000

None


68.0

429

NA

5.7

NA

8.3

45.2

6.87

10.92

9.6

WS100-082900

WS100

8/29/2000

None


204

875

NA

0.80

0.030

31.1

20.5

6.58

19.3

8.1

WS100-091701

WS100

9/17/2001

None


140

864

NA

15.08

0.040

24.0

155.3

6.69

16.8

40.6




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode):errous Iron

Nitrogen, Ammonia

ORPpHTemperature

Turbidity

WS100-092004

WS100

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

NAMANANANA

2.2NA

6.28

15.9

NA

WS100-1 13099

WS100

11/30/1999

None

Unfiltered

Robert Ford(EPA)

1102753.0

3.15

0.010

9.54

79.8

6.3

6.99

9.9

WS1 50-040201

WS150

4/2/2001

None

Unfiltered

Robert Ford(EPA)

46.4

491

4.0

NA

0.10

5.1

37.3

6.43

5.2

4.2

WS150-040400

WS150

4/4/2000

None

Unfiltered

Robert Ford(EPA)

78.0

439NA

5.8NA

8.850.4

6.78

10.78

7.7

WS150-082900

WS150

8/29/2000

None

Unfiltered

Robert Ford(EPA)

370

1190

NA

2.12

0.040

60.3

11.7

6.61

18.57

8.0

WS1 50-091 701

WS150

9/17/2001

None

Unfiltered

Robert Ford(EPA)

178

980

0.30

3.01

0.16

38.0

139

6.37

16.4

56.3

WS150-092004

WS150

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

NANANANANA

. 2.4

NA6.18

14.19

NA

WS150-113099

WS150

11/30/1999

None

Unfiltered

Robert Ford(EPA)

92.0

275NA

2.76

NA9.57

80.2

6.29

7.01

9.0

WS200-040201

WS200

4/2/2001

None


46.0

4814.0

NA0.10

5.125.3

6.63

5.44.2

WS200-040400

WS200

4/4/2000

None

Unfiltered

Robert Ford(EPA)

82.0

452NA

5.30.259.1

55.1

6.710.4

12.0




Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORP

pHTemperature

Turbidity

WS200-082900

WS200

8/29/2000

None


708

2209

0.20

0.12

15.3

103

-158

7.21

15.99

72.4

WS200-091701

WS200

9/17/2001

None


524

2112

0.10

1.04

27.2

90.6

-66

6.5

16.8

13.0

WS200-092004

WS200

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

NA

NA

NA

NA

NA

2.4

NA

6.23

14.15

NA

WS240-082900

WS240

8/29/2000

None


836

2483

0.20

0.27

38.5

119

-210.5

7.31

15.08

23.8

WS250-040201

WS250

4/2/2001

None


47.0

489

3.5

NA

0.10

5.1

16.5

6.72

5.2

4.8

WS250-040400

WS250

4/4/2000

None


134

696

NA

0.71

NA

12.7

47.9

6.39

9.31

17.1

WS250-091701

WS250

9/17/2001

None


706

2537

0.10

1.7

60.5

112

-112.1

6.65

16.0

15.1

WS300-040201

WS300

4/2/2001

None


45.6

489

3.5

NA

0.10

5.1

16.5

6.78

5.2

4.0

WS300-040400

WS300

4/4/2000 .

None


1500

2333

NA0.21

NM

80.5

-131.1

7.12

8.98

28.7

WS300-091701

WS300

9/17/2001

None


822

2798

0.050

1.66

74.0

117

-159.6

6.79

15.2

16.2



TABLE 2-3 (cont.)NATURAL ATTENUATION STUDY - SURFACE WATER WET CHEMISTRY DATADRAFT FINAL TECHNICIAL MEMORANDUMiNDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 10 OF 10

Sample Number

Sample Location

Date Sampled

Sample Elevation

QC Identifier

Filtered

Data Source


Alkalinity

Conductivity

DO(Chemet)

DO(electrode)

Ferrous Iron

Nitrogen, Ammonia

ORPpHTemperature

Turbidity

WS300-092004

WS300

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

MANANANANA

2.3NA

6.33

14.12

NA

WS350-092004

WS350

9/20/2004

0

None

Unfiltered

Robert Ford^PA)

NANANANANA

4.4NA

6.26

14.09

NA

WS400-092004

WS400

9/20/2004

0

None

Unfiltered

Robert Ford(EPA)

NANANANANA

104NA

6.87

14.9

NA

WS50-040201

WS50

4/2/2001

\lone


47.6

491

4.0

NA

0.10

5.3

99.0

6.2

5.1

4.3

WS50-040400

WS50

4/4/2000

None

Unfiltered

Robert Ford(EPA)

68.0

420

NA

5.5

NA

7.9

31.5

6.99

11.61

8.3

WS50-082900

WS50

8/29/2000

None

Unfiltered

Robert Ford(EPA)

128

644

NA

3.27

0.020

16.0

66.7

6.75

20.47

7.7

WS50-091701

WS50

9/1772001

None


116

809

NA

7.6

0.010

15.1

159.3

6.66 .

17.0

11.1

WS50-092004

WS50

9/20/2004

0

None

Unfiltered

Robert Ford[(EPA)

NA

NA

NA

NA

NA

2.0

NA

6.42

16.72

NA

WS50-113099

WS50

11/30/1999

None

Unfiltered

Robert Ford(EPA)

76.0

275

3.0

3.9

NA

9.58

80.9

6.29

6.99

21:4

NML-10-040501

NML

4/5/2001

None


7420

14350

NA

NA

NR

1980

-5.2

7.49

T0.1

NR

RI051306DF


TABLE 2-4JULY 11, 2005 SURFACE WATER SAMPLING RESULTS



Analyte (mg/L)

Ammonia-NitrogenBromideChlorideFluorideNitrateNitriteSulfateNitrate (N)Nitrite (N)o-Phospate (P)

SAMPLE ID

CULV-01

8.03ND<0.50

40ND<0.50

5.90.15

241.3

0.05ND<0.03

COMB-01

2.10ND<0.50

103*NDO.50

3.6NDO.10

230.81

ND<0.03ND<0.03

OUTLET-01

3.81ND<0.50

83*ND<0.50

2.4ND<0.10

310.54

ND<0.03ND<0.03

185NB-HALLS-01

NDND<0.50

104*ND<0.50

2.6ND<0.10

120.59

ND<0.03ND<0.03

185NB-RR01

9.97ND<0.50

105*0.67.2

0.2161*1.6

0.06NDO.03

LANDFILL-LF01

12.70ND<0.50

130*ND<0.50

2.70.24

38•0.610.07

ND<0.03

LANDFILL-LF02

11.00ND<0.50

131*ND<0.50

4.00.39

390.900.12

ND<0.03

LANDFILL-RR02

11.30ND<0.50

112*0.65.6

0.1858*1.3

0.05ND<0.03

RR03

10.80NDO.50

86*1.14.1

NDO.1085*

0.93NDO.03'ND<0.03

RR04

0.28ND<0.50

92*NDO.50

3.0NDO.10

240.68

NDO.03NDO.03

HALLS-22MAPLE-01

NDNDO.50

108*NDO.50

2.9NDO.10

120.65

NDO.03NDO.03

HALLS-20THIRD-01

NDNDO.50

105*NDO.50

2.2NDO.10

110.50

NDO.03NDO.03

* Estimated value, outside calibration curveND = Not DetectedNDO.50 = Not Detected at a reporting limit of 0.50 mg/LNote: For clarity, the prefix "IP" has been removed from sample ID'S.

RI051306DFTetra Tech NUS, Inc.

TABLE 2-5JULY 12, 2005 SOIL SAMPLING RESULTS

WELLS G&H WETLANDDRAFT FINAL TECHNICAL MEMORANDUM

INDUSTRI-PLEX SITEWOBURN, MASSACHUSETTa

IAnalvte (mg/Ka)AluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Sample IDRC-014600

ND<9.8ND<20

56ND<0.98ND<2.92300

131120

57006983016009.5

ND<390ND<9.8ND<2.9ND<200ND<20

1453

RC-029100

ND<15ND<30

48ND<1.5ND<4.58000214.729

130001409009411

ND<600ND<15ND<4.5ND<300ND<30

3679

RC-039000

ND<16ND<32

48ND<1.6ND<4.83700

265

79200002406903311

ND<640ND<16ND<4.8ND<320ND<32

4857

RC-043800

ND<16ND<32

40ND<1.6ND<4.84800

17ND<4.8

22780025037024

ND<9.6ND<640ND<16ND<4.8

640ND<32

2445

RC-058300

ND<12ND<24

37ND<1.2ND<3.29400223.921

7700370620237.3490

ND<12ND<3.6ND<240ND<24

3741

RC-06 I RC-073100

ND<10ND<20

21ND<1.0ND<3.1

72017

ND<3.116

43002801509.36.2

ND<410ND<10ND<3.1ND<200ND<20

2823

2900ND<11ND<22

13ND<1.1ND<3.3

983.7

ND<3.34

290052693.8

ND<6.6ND<440ND<11ND<3.3ND<220ND<22

9.55.8

RC-085400

ND<13ND<26

73ND<1.3ND<3.96000

127.621

640020010003711

530ND<13ND<3.9ND<260ND<26

1864

RC-093100

ND<10ND<20

40ND<1.0ND<3.0

540012

ND<3.019

6700240360336.6

ND<400ND<10ND<3.0ND<200ND<20

2156

RC-1013000ND<11ND<23

17ND<1.1ND<3.4

440164.617

7300190690247.2

ND<460ND<11ND<3.4ND<230ND<40

4033

RC-112200

12ND<20

7ND<0.99ND<3.0

1308.4

ND<3.011

3600160856.4

ND<5.9ND<400ND<9.9ND<3.0ND<200ND<20

2817

RC-12- 7400ND<9.7ND<19

30ND<0.97ND<2.92700

182126

1700055

310079014

520NDO.7"ND<2.9ND<190ND<40

2484

* Estimated value, outside calibration curveND<15 = Not Detected at a reporting limit of 15 mg/KgNote: For clarity, the prefix "IP" has been removed from sample ID'S.


TABLE 4-1COMPARISON OF AMMONIA RESULTS TO WATER QUALITY CRITERIA



I Location

WN50

WN100

WN150 .WN200

WN250

WN260

WC50

WC100WC150

IWC200WC250

WS50WS100

WS150WS200WS250

WS300WN50

WN100WN150

WN175WN200

WN225

WN250

WN300

WC50WC100

WC150

WC200WC250

WC275

WC300

WS50

WS100

WS150

WS200

WS250WS300

WS340

Date

11/30/1999

11/30/199911/30/1999

11/30/1999

11/30/1999

11/30/1999

11/30/199911/30/1999

11/30/1999

11/30/199911/30/1999

11/30/199911/30/199911/30/199911/30/1999

11/30/199911/30/1999

4/4/2000

4/4/20004/4/20004/4/2000

4/4/2000

4/4/2000

4/4/20004/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/20004/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/2000

4/4/2000

Depth1

(cm)

50

100

150200

250

260

50

100

150200

250

50100150

200250320

50

100150175

200

225

250

30050

100

150200250

275

300

50

100

150

200250

300

340

Depth1

(ft)

1.63.3

4.96.6

8.2

8.5

1.6

3.3

4.96.68.2

1.63.34.9

6.6

8.210

1.63.3

4.95.7

6.67.4

8.2

9.8

1.6

3.3

4.96.68.2

9.0

9.8

1.6

3.3

4.9

6.6

8.2

9.8

11

Temp.

°C

7.077.14

7.299.44

11.53NM

7.07

7.087.11

8.059.7

6.99

6.997.01

9.39.5410.16

10.8310.82

10.8710.87

10.89

10.9110.83

10.44

11.39

11.46

11.5211.05

9.95

9.95

9.6

11.6110.92

10.78

10.4

9.31

8.98

8.94

pH

6.32

6.32

6.22

6.08

6.49

NM

6.34

6.31

6.32

6.126.49

6.29

6.36.29

6.216.456.84

6.79

6.95

7.027.04

7.05

6.96

7.197.51

7.03

6.98

6.976.816.5

6.58

7.35

6.996.87

6.786.7

6.39

7.12

7.33

NH3-N

mgN/L

9.5

9.87

17

42.5NM

NM

9.36

9.34

9.86

33.6NM

9.58

9.549.57

NM

NMNM

7.4

7.47.58.2

8

8.499.1

597

7.6

7.3

7.324.1

8

27.3

NM

7.9

8.3

8.8

9.1

12.7

80.5NM

NRWQC2

CCC

11.0

10.9

10.9

9.6

NA

NA

11.0

11.0

11.0

10.5NA11.1

11.111.1

NANA

NA

8.07.6

7.47.3

7.3

7.5

6.85.67.1

7.2

7.2

7.88.9

8.8

NA

7.1

7.8

8.0

8.4

9.4

8.0

NA

CMC

5252

5354

NA

NA

5152

52

54NA52

5252NA

NANA

42

38353534

37

3020

35

3737

42

4947

NA

36

40

43

45

5132

NA


l«

TABLE 4-1 (cont.)COMPARISON OF AMMONIA RESULTS TO WATER QUALITY CRITERIADRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 2 OF 5

ll

Location

WN50

WN100 '

WN150

WN180

WN200WC50

WC100

WC150

WC200

WC250

WS50

WS100WS150

WS200WS240WN50

WN100

WN150

WN200

WN250

WN270

WN310

WC50WC100

WC150

I WC200

WC250

WC300

WS50WS100

WS150WS200WS250

WS300WC50

WC100

WC150

WC200

WC250

Date

8/25/2000

8/25/2000

8/25/2000

8/25/2000

8/25/20008/25/20008/25/2000

8/25/20008/25/2000

8/25/2000

8/29/2000

8/29/20008/29/2000

8/29/20008/29/20004/2/20014/2/2001

4/2/2001

4/2/2001

4/2/2001

4/2/2001

4/2/2001

4/2/20014/2/2001

4/2/2001

4/2/20014/2/2001

4/2/2001

4/2/20014/2/2001

4/2/20014/2/2001

4/2/20014/2/20019/17/2001

9/17/2001

9/17/2001

9/17/2001

9/17/2001

Depth1

(cm)

50

100

150

180

200

50

100

150

200

240

50

100

150

200

240

50

100

150

200

250

270

310

50100

150

200

250

300

50

100

150

200

250

300

50

100

150

200

250

Depth1

(ft)

1.6

3.3

4.9

5.9

6.6

1.63.3

4.9

6.6

7.9

1.6

3.3

4.9

6.6

7.9

1.6

3.3

4.9

6.6

8.2

8.9

10

1.63.3

4.9

6.6

8.2

9.8

1.6

3.3

4.9

6.6

8.2

9.8

1.6

3.3

4.9

6.6

8.2

Temp.

°C

19

18.54

17.76

15.29

14.28

22.2619.23

17.74

15.23

15.23

20.47

19.3

18.57

15.99

15.084.1

4.1

4.1

4.1

4.4

4.6

6.4

44.5

4.8

4.9

4.8

4.9

5.1

5.3

5.2

5.4

5.2

5.2

16.4

16.3

16.5

16.5

16

pH

7.12

7.28

7.16

7.37

7.2

7.52

7.39

7.35

7.76

8.02

6.75

6.58

6.61

7.21

7.316.34

6.13

6.16

6.16

6.71

6.46

6.5

5.15.23

5.03

5.82

6.29

6.53

6.2

6.17

6.43

6.63

6.72

6.78

6.58

6.56

6.33

6.42

6.6

NH3-N

mgN/L

13.1

14.7

15.5

68.8

132

14.8

15.2

44

61

119

16

31.1

60.3

103

1195.4

5.5

6

6.4

7

6.8

95.5

55.3

4.8

5.1

5.1

5.2

5.3

5.1

5.1

5.1

5.1

5.1

16.4

17.9

44.8

79.6

115

I NRWQC2

CCC

4.2

3.9

4.4

4.6

5.4

2.6

3.5

4.0

3.1

2.2

4.3

4.8

5.0

4.9

4.8

11.011.2

11.2

11.2

10.4

10.9

10.8

11.511.5

11.5

11.4

11.1

10.8

11.1

11.2

10.9

10.6

10.4

10.2

5.8

5.9

6.0

5.9

6.0

CMC

32

27

31

24

30

19

23

25

13

8

43

47

47

29

26

51

54

54

54

44

50

49

5858

58

56

52

48

53

53

50

46

44

43

47

48

52

50

47

im-t

lift

mil


TABLE 4-1 (cont.)COMPARISON OF AMMONIA RESULTS TO WATER QUALITY CRITERIADRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 3 OF 5 '

ILocation

WC300

WC320

WS50

WS100

WS150

WS200

WS250

WS300

WS330

WS50

WS100

WS150WS200 '

WS300

WS350

WS400

Hall's Brook Inlet

Atlantic Ave.Drainway

MRMA Pnnri Dntlpt

NML-1

Date

9/17/2001

9/17/2001

9/17/2001

9/17/2001

9/17/2001

9/17/2001

9/17/2001

9/17/2001

9/17/2001

9/20/2004

9/20/2004

9/20/20049/20/2004

9/20/2004

9/20/2004

9/20/2004

4/5/2000

5/18/2000

8/30/2000

4/5/2001

9/16/2001

9/20/2004

4/5/2000

5/18/2000

8/24/00, A

8/24/00, B

4/5/2001

9/20/2004

4/5/2000

5/18/2000

8/30/2000

4/5/2001

9/16/2001

9/20/2004

4/5/2001

4/10/2001

5/14/2001

9/14/2001

9/21/2004

Depth1

(cm)

300

320

50

100

150

200

250

300

330

50

100

150200

300

350

400

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10

69

69

69

69

69

Depth1

(ft)9.8

10

1.6

3.3

4.9

6.6

8.2

9.8

11

1.6

3.3

4.96.6

9.8

11

13

0.33

0.33

0.33

0.330.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

2.3

2.3

2.3

2.3

2.3

Temp.ec

15.7

15.6

17

16.8

16.4

16.8

16

15.2

14.7

16.72

15.9

14.1914.15

14.12

14.09

14.9

11.5

14

19.4

11

15.1

NM

11.1

NM

16.7

18.2

NM

NM

12

16

22.6

10.9

21.6

NM

NM

11.8

14.1

15.8

NM

PH

6.57

6.72

6.66

6.69

6.37

6.5

6.65

6.79

7.17

6.42

6.28

6.186.23

6.33

6.266.87

7.93

7.44

7.22

6.866.97

NM

7.14

NM

6.33

5.94

NM

NM

6.7

7.14

6.95

6.76

6.73

NM

NM

6.18

6.63

6.25

NM

NH3-N

mgN/L

151

NM

15.1

24

38

90.6

112

117

NM

2

2.2

2.42.4

2.34.4

104

5.2

7.8

, 7.65.54.1

3.3

0.1

NM

NM

NM

2.2

0.7

7.4

8

16

6.9

17.2

4

NM

NM

12.2

17.2

NM

NRWQC2

CCC

6.1

NA

5.5

5.6

6.0

5.7

5.9

6.0

NA

5.8

6.2

7.07.0

7.0

7.0

6.0

3.2

4.7

3.9

7.7

5.7

NA

6.9

NA

NA

NA

NA

NA

7.6

5.0

3.6

8.04.1

NA

NA

NA

6.7

6.3

NA

CMC

47

NA

46

45

51

49

46

42

NA

50

52

53

5352

52

40

10

22

29

4037

NA

32

NA

NA

NA

NA

NA

45

32

38

43

44

NA

NA

NA

46

53

NA


nil

TABLE 4-1 (cont.)COMPARISON OF AMMONIA RESULTS TO WATER QUALITY CRITERIADRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 4 OF 5

Location

NML-2

NML-3

I

NML-4

NML-5

NML-6

NML-7

NML-8

Date

4/5/2001

4/10/2001

5/14/2001

5/31/2001

9/14/2001

9/21/2004

4/5/2001

4/10/2001

5/14/2001

9/14/2001

9/21/2004

4/5/2001

4/10/2001

5/14/2001

9/14/2001

9/21/2004

4/5/2001

4/10/2001

5/14/2001

9/13/20019/21/2004

4/5/2001

4/10/20015/14/2001

5/31/2001

9/13/2001

9/21/2004

4/5/2001

4/10/2001

5/14/2001

9/13/2001

9/21/2004

4/5/2001

4/10/2001

5/14/2001

9/13/2001

9/21/2004

Depth1

(cm)

119

119119

119

119

119

169

169

169

169

169

219

219

219

219

219

269

269

269

269

269

319

319319

319

319

319

369

369

369

369

369

419

419

419

419

419

Depth1

(ft)

3.9

3.9

3.9

3.9

3.9

3.9

5.5

5.5

5.5

5.5

5.5

7.2

7.2

7.2

7.2

7.2

8.8

8.8

8.8

8.8

8.8

10

1010

10

10

10

12

12

12

12

12

14

14

14

14

14

Temp.

«c9.5

10.5

13.6

15.6

16.1

NMNM

11.413.9

16.4

NM

9.4

10.9

14.2

16.3

NM

9.9

10.6

14.1

22.9NM

9.6

10.614.8

15.2

23.9

16

9.9

11.3

14.8

24.8

16.8

10.4

10.7

16.4

27.5

17.9

PH

6.53

6.15

6.54

6.44

6.31

NM

NM

6.28

6.21

5.23

NM

6.53

6.54

6.24

6.11

NM

6.42

6.71

6.54

6.68NM

6.64

6.566.81

7.03

6.84

6.98

7.14

6.62

6.73

6.73

6.93

6.86

6.68

6.74

6.79

6.83

NH3-N

mgN/L

8.2

NM

16.1

NM

14.9

NM

NM

NM

21.3

18.3

NM

9.9

NM

42.6

80.3

NM

63.2

, NM

323

449NM

297

NM817

NM

1050

933

1170

NM

1180

1160

1110

1150

NM

1230

1270

1100

NRWQC2

CCC

9.2

NA

7.0

NA

6.1

NA

NA

NA

7.1

6.3

NA

9.2

NA

7.0

6.2

NA

9.1

NA

6.8

3.8

NA

8.9

NA6.2

NA

3.4

5.4

7.5

NA

6.3

3.3

5.2

8.1

NA

5.6

2.7

5.0

CMC

48

NA

48

NA

52

NA

NA

NA

53

58

NA

48

NA

53

54

NA

50

NA

48

45NA

46

NA42

NA

41

37

32

NA

44

44

38

40

NA

44

42

41

iH


ill

1 TABLE 4-1 (cont.)COMPARISON OF AMMONIA RESULTS TO WATER QUALITY CRITERIADRAFT FINAL TECHNICAL MEMORANDUMINDUSTRI-PLEX SITEWOBURN, MASSACHUSETTSPAGE 5 OF 5

Location

NML-9 ,

NML-10

IP-OUTLET-01

Date

4/5/2001

4/10/2001

5/14/2001

9/14/2001

9/21/2004

4/5/2001

4/10/2001

5/14/2001

9/13/2001

9/21/2004

7/11/2005

Depth1

(cm)

469

469

469

469

469

519

519

519

519

519NA

Depth1

(ft)

15

15

15

15

15

17

17

17

17

17

NA

Temp.

«cNM

NM

NM

NM

NM

10.1

12.7

15.9

21.3

18.6

23.3

pH

NM

NM

NM

NM

NM

7.49

7.28

7.09

7.46

7.14

6.98

NH3-N

mgN/L

1100

NM

1890

2050

NM

1980

NM

2100

2110

1670

3.81

NRWQC2

CCC

NA

NA

NA

NA

NA

5.8

NA

5.22.9

4.33.4

CMC

NA

NA

NA

NA

NA

20

NA

33

21

32

37

Notes1. Depth for NML samples is screen depth, while other depths are sonde depths.

2. NRWQC - National Recommended Water Quality Criteria (EPA, 2004) for CMC (acute criteria for salmonid fishnot present) and CCC (chronic criteria for fish early life stages absent) adjusted for pH and temperature.

Boldface criteria were exceeded by sample results.

NA = not applicableND = not detectedNS = not sampledNM = not measured


FIGURES

ABERJONA RIVER

L E G E N D

k B6-02 GSPAISORP OROUNOWATER' SAMPLE LOCATIONS

SEE TABLE 2-10

TRANSECT LJN£

WETLANDS AREA

ABERJONA OVER OR OTHER OPEN STREAM

CULVERTED RIVER SECTION

PONDED WATER AREA

NOTES;

1. STREET. WATERWAY AND TOWNSHIP BOUNDARY LOCATIONS. UNLESS OTHERWISENOTED. FROM MASSACHUSETTS OS AND CITY OF WOBURN ENONEERMB DEPT.2. ALL SAMPLE LOCATIONS OBTAINED BY GPS UNLESS OTHERWISE NOTED.3. LOCATIONS OF HISTORIC MSHAWUU LAKE. AND PARTS OF THE ABERJONA RIVERNORTH BRANCH FROM A PLAN ENTITLED "PLANS OF ABERJONA RIVER, HALL'SBROOK AND MISHAWUM LAKE FLOOD CONTROL AND DRAINAGE STRUCTURES TOREPLACE EXISTING WATERWAY. REVISED: 9/29/96, ORIGINAL SCALE: r-200'.DATUM OF PLAN: NAD 27 FEET.4. INDUSTRI-PLEX SITE & HIDE PILE LOCATIONS FROM A PLAN BY MERIDIAN LANDSERVICES. INC., ENTITLED: "PROJECT RECORD. EAST SIDE UNDEVELOPED PROPERTIES.REMEDIATED AREAS. NDUSTRI-PLEX SITE REMEDIAL TRUST. WOBURN.MASSACHUSETTS*. DATED: MARCH 2, 2001. C-6.5. ABERJONA RIVER SOUTH BRANCH SHOWN FROM A PLAN BY HALLIBURTON NUS.INC.. PLAN DATED: AUGUST 25. 1997, ENTITLED: "HISTORICAL AND CURRENTSURFACE WATER CONDITIONS. PRELIMINARY MSGRP STUDY. INDUSTRI-PLEX. WOBURN,MA'.6. TRANSECT LINES FROM A PLAN PREPARED BY MAVERICK CONSTRUCTIONMANAGEMENT SERVICES. INC. * MERIDIAN LAND SERVICES, INC.. AMHERST, NH.ENTITLED: 'PLANIMETRIC WORKSHEET. INDUSTRI-PLEX SITE REMEDIAL TRUST, SITEBASEMAP, INDUSTRI-PLEX SITE REMEDIAL TRUST, WOBURN, MASSACHUSETTS",SCALE: 1'- 300'. DATED: SEPTEMBER 29. 2000.7. PLAN COORDMATES IN NAD 83 FEET: ALL LOCATIONS (IF NECESSARY)CONVERTED FROM ORIGINAL DATUM TO NAD S3 FEET USING BLUE MARBLEGEOGRAPHIC CALCULATOR SOFTWARE (VERSION 4.2).8. PLAN HOI TO BE USED FOR DESIGN.9. ALL LOCATIONS TO BE CONSIDERED APPROXIMATE.10. THE WATERWAY BOUNDARIES SHOWN MAY NOT REPRESENT THE UMTS OF THEWATERWAYS AT THE TME OF SAMPLING DUE TO SEASONAL VARIATIONS INWATERWAY BOUNDARIES AND POTENTIAL ERRORS IN WATERWAY MAPPING.11. REFER TO EPA OFFICE OF RESEARCH * DEVELOPMENT. JUNE 24. 2005,MEMORANDUM TOR ADDITIONAL AMMONIA GROUNDWATER DATA.

GRAPH1C SCALE

0' 800' 1600'

GROUNDWATER SAMPLE LOCATIONS ANALYZED FOR AMMONIA FIGURE 2-1TECHNICAL MEMORANDUM - SUPPLEMENTAL DATA

INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: R.G. DEWSNAP

CHECKED BY: G. BULLARD

SCALE: AS SHOWN

REV.:

DATE: OCTOBER 17, 2005

FILE NO.: \4123\1340\GW_AREA_OA_REV.DWG


55 Jonspin Road Wilmington, MA 01887(978)658-7899

W/ West>**?4 Hide

M5 A03 A23; A A A A A1 A04 A22 East-Central

Hide Pile

SouthHide

A15 A09,A10A A11

-AiilPhotoA^ril 2001MASSGIS

SGURCEi JUNE 84, 2005 MEMORANDUM FROM ROBERT FORD, EPA/DRD

EPA/ORD SNAP-SHOT GROUNDWATER SAMPLE LOCATIONS FIGURE 2-2TECHNICAL MEMORANDUM - SUPPLEMENTAL DATA

INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: D.W. MACDOUGALL


SCALE: NOT NOTED

REV.:

DATE: AUGUST 19, 2005

\4123\1340\FIG_2-2.DWQ


55 Jonspin Road Wilmington. MA 01887(978)658-7899

egional

Center

TW07TWOS*

TWO4AATW02

ATW01

TW05

Air PhotoApril 2001MASSGIS

SOURCE. JUNE 54, 2005 HEMDRANDUH FROM ROBERT FDRD, EPA/DRD

TW11

EPA/ORD FIXED GROUNDWATER SAMPLE LOCATIONS FIGURE 2-3

TECHNICAL MEMORANDUM - SUPPLEMENTAL DATA

INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: D.W. MACDOUGALLCHECKED BY: G. BULLARD

SCALE: NOT NOTED

REV.:


NAME: \4123\1340\FIG_2-3.DWG



' Atlantic Avenue Draii

DMLS-1NML

A *DMLS-2

North Surface Water

Hall's Brook Inlet

DMLS-3

Central Surface Water

South Surface Water

HBHA Pond Outlet

SPURGE. JUNE 24, 2005 MEMORANDUM FROM ROBERT FDRD. EPA/DRD

EPA/ORD SURFACE WATER SAMPLE LOCATIONS FIGURE 2-4


INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: D.W. MACOOUGALL

CHECKED BY; G. BULLARD

SCALE: NOT NOTED

REV.:


\4123\1340\FIG_2-4.DWG



SamplingHalls Pond Watershed&EPA

New EnglandDtMn.fafiat.itia

SOURCE- AUGUST 16, 3005 MEMORANDUM FROM JASDN TURGEDN, EPA/OES

INDUSTRI-PLEX WATER SAMPLING HALLS POND WATERSHED FIGURE 2-5TECHNICAL MEMORANDUM - SUPPLEMENTAL DATA

INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: D.W. MACOOUGALLCHECKED BY: G. BULLARD

SCALE: AS NOTED

REV.:


\4123\1340\FIG_2-5.DWG


55 Jon spin Road Wilmington, MA 01887(978)658-7899

RC-12;

RC-11RC-10 •-'.,RC-09 • >RC-08

KC-07 r • '•

RC-06RC-05 r

RC-04 ;

RC-03RC-02

WELL68SD

RC-0!

-JSP

Bmufa

SOURCEi AUGUST 16, 3005 MEMORANDUM FROM JASDN TURGEDN, EPA/DES

NewEnglaodDRAFT: flufj«1 2th. a»5

Industri-Plex Soil SamplingRifle dub Area

INDUSTRI-PLEX SOIL SAMPLING RIFLE CLUB AREA FIGURE 2-6


INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSORA«M BY: D.W. MACDOUGALL


SCALE: AS NOTED

REV.:

DATE: AUGUST 19. 2005

\4123\1340\FIG_2-6.D«G



INDUSTRI-PLEXSITE

ABERJONA RIVER

L E G E N D

A. 96-02 oap/usCW GROUNDWATER" SAMPLE LOCATIONS

9 AMMOMA < 4,0 mgA

AMMOMA > 4.0 mgA < 100 <"ifl-

AMMOMA > 100 mgA < 1000 mgA

A AMMOMA > 1000 mgA

B-2

GROUNDWATER PLUME AREASPRESENTED IN PROPOSED PLAN

TRANSECT LWE

WETLANDS AREA

ABERJONA RIVER OR OTHER OPEN STREAM


PONDED WATER AREA

NOTES:

1. STREET. WATERWAY AND TOWNSHIP BOUNDARY LOCATIONS, UNLESS OTHERWISENOTED. FROM MASSACHUSETTS OS AND CITY OF WOBURN ENGINEERING DEPT.2. ALL SAMPLE LOCATIONS OBTAINED BY GPS UNLESS OTHERWISE NOTED.3. LOCATIONS OF HISTORIC MSHAWUM LAKE. AND PARTS OF THE ABERJONA RIVERNORTH BRANCH FROM A PLAN ENTITLED "PLANS OF ABERJONA RIVER. HALL'SBROOK AND MSHAWUM LAKE FLOOD CONTROL AND DRAINAGE STRUCTURES TOREPLACE EXISTING WATERWAY, REVISED: 9/25/98, ORIGINAL SCALE: 1'-20ff.DATUM OF PLAN: NAD 27 FEET.4. INDUSTRI-PLEX SITE * HIDE PILE LOCATIONS FROM A PLAN BY MERIDIAN LANDSERVICES. INC.. ENTITLED:'PROJECT RECORD, EAST SIDE UNDEVELOPED PROPERTIES.REMEDIATED AREAS. INDUSTRI-PLEX SITE REMEDIAL TRUST, WOBURN,MASSACHUSETTS*. DATED: MARCH 2, 2001, C-6.5. ABERJONA RIVER SOUTH BRANCH SHOWN FROM A PLAN BY HALLIBURTON NUS.NC., PLAN DATED: AUGUST 25, 1997, ENTITLED: 'HISTORICAL AND CURRENTSURFACE WATER CONDITIONS, PRELIMINARY MSGRP STUDY, INDUSTRI-PLEX, WOBURN,MA'.6. TRANSECT LINES FROM A PLAN PREPARED BY MAVERICK CONSTRUCTIONMANAGEMENT SERVICES, INC. * MERIDIAN LAND SERVICES. INC.. AMHERST, NH,ENTITLED: 'PLANIMETRIC WORKSHEET, INDUSTRI-PLEX SITE REMEDIAL TRUST. SITEBASEMAP. INDUSTRI-PLEX SITE REMEDIAL TRUST, WOBURN, MASSACHUSETTS'.SCALE: 1"» 300', DATED: SEPTEMBER 29, 2000.7. PLAN COORDINATES IN NAD K FEET; ALL LOCATIONS (IF NECESSARY)CONVERTED FROM ORIGINAL DATUM TO NAD 83 FEET USING BLUE MARBLEGEOGRAPHIC CALCULATOR SOFTWARE (VERSION 4.2).8. PLAN HQI TO BE USED FOR DESIGN.9. ALL LOCATIONS TO BE CONSIDERED APPROXIMATE.10. THE WATERWAY BOUNDARIES SHOWN MAY NOT REPRESENT THE LIMITS OF THEWATERWAYS AT THE TIME OF SAMPLING DUE TO SEASONAL VARIATIONS INWATERWAY BOUNDARIES AND POTENTIAL ERRORS M WATERWAY MAPPING.11. REFER TO EPA OFFICE OF RESEARCH 4 DEVELOPMENT. JUNE 24. 2006,MEMORANDUM FOR ADDITIONAL AMMONIA GROUNDWATER DATA.

GRAPHIC SCALE

0' 800' 1600'

AMMONIA CONCENTRATIONS IN GROUNDWATER

TECHNICAL MEMORAND 1 iy ci ippi FMFMTAI D A T AUM oUrnLC.MC.IN 1 ML \J r\ 1 A

INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: R.G. DEWSNAP


SCALE: AS SHOWN

REV.: 0


FILE NO.: \4123\1340\FIG_3-1.DWG

FIGURE 3-1

c

"ft TETRA TECH NUS, INC.

)5 Jonspin Road Wilmington, MA 01887(978)658-7899

RR-4 APPROXIMATELY 2000FT NORTH OF THIS LOCATION

• AT EAMES STREET

INDUSTRI-PLEXSITE

HBHA POND

HALLS BROOKHOLDING AREA

CONCENTRATED SOURCEOF ARSENIC IN SURFACEWATER AND SEDIMENT

DEPOSITION

HjHMhRMISHAWUMLAKE *

" W E T L A N D S

HBHAWETLANDS

WELLS G & HSUE

L E G E N D

WETLANDS AREA

ABERJONA RIVER OROTHER OPEN STREAM


PONDED WATER AREA

GROUNDWATER PLUME

EPA AMMONIA SURFACE WATERSAMPLING LOCATION (JULY 2005)

EPA METALS SOILSAMPLING LOCATION (JULY 2005)

WELLS G & HWETLAND AREA

SIGNIFICANT AREA OFARSENIC DEPOSITION

WELL "H"

• WELL "G"

NfllESj

1, LOCATIONS OF TOWN BOUNDARIES, MAJOR ROADS, STREETS WATER BODIES AND WATER COURSES FROM PLANS BY THEMASSACHUSETTS CIS AND CITY DF WDBURN ENGINEERING DEPT. (S003> EXCEPT AS NDTED BELDW.Z. LOCATIONS OF HISTORIC MISHAWUM LAKE, AND HISTORIC ABERJONA RIVER NORTH BRANCH FROM A PLAN ENTITLED 'PLANS OFABERJONA RIVER, HALL' S BRDDK AND MISHAWUM LAKE FLOOD CONTROL AND DRAINAGE STRUCTURES TO REPLACE EXISTING WATERWAY,WOBURN, MA, FOR PETITION DF MARK PHILLIP TRUST', WESTON I. SAMPSON ENGINEERS, DATEDi NOV. 1974.3. PARTS QF THE ABERJDNA RIVER SOUTH BRANCH SHOWN FROM A PLAN BY HALLIBURTON NUS, INC. , PLAN DATED. AUGUST 25,1997, ENTITLED 'HISTORICAL AND CURRENT SURFACE WATER CONDITIONS, PRELIMINARY MSGRP STUDY, INDUSTRI-PLEX, WOBURN,MA'.4. SURFACE WATER FEATURES ADAPTED FROM FIGURE 39 (ABERJONA RIVER STUDY AREA, WETLANDS STATUS i RIVER COURSES, 1995)FROM A REPORT ENTITLED' AERIAL PHOTOGRAPHIC ANALYSIS DF THE ABERJONA RIVER STUDY AREA MIDDLESEX COUNTY,MASSACHUSETTS', OCTOBER, 8008, BY U. S. E. P. A. AND ONE METER AERIAL PHOTOGRAPHS OBTAINED FROM THE MASSACHUSETTS GIS. '5. ROADS AND WATER COURSES UNAVAILABLE FROM ABOVE SOURCES ADDED FROM AVAILABLE PLANS AND/OR FIELD OBSERVATIONS.6. PLAN DATUM IN NAD 83 FEET) ORIGINAL DATUM FROM OTHER PLANS CONVERTED TO NAD 83 FEET USING THE GEOGRAPHICCALCULATOR BY BLUE MARBLE GEDGRAPHICS, VERSION 4. Z.7. ALL LOCATIONS TO BE CONSIDERED APPROXIMATE.8. PLAN NO! TO BE USED FDR DESIGN.9. SEE EPA'S MARCH 2005 MSGRP REMEDIAL INVESTIGATION REPORT FDR FURTHER KEY CONTAMINANT MIGRATION PATHWAYS.10. SEE APPENDIZ B - JULY 2005 SURFACE WATER AND SOIL SAMPLE RESULTS FOR SPECIFIC SAMPLE IDENTIFICATION NUMBERS ANDLOCATIONS.

GRAPHIC SCALE

1200' 2400'

PARTIAL KEY CONTAMINANT MIGRATION PATHWAYSWITH AMMONIA AND JULY 2005 SAMPLE LOCATIONS FIGURE 3-2


INDUSTRI-PLEX SITE, WOBURN, MASSACHUSETTSDRAWN BY: D.W. MACDOUGALL


SCALE: AS NOTED

REV.:


RLE NO.: DWG\4123\1340\FIG_3-2.DWG



REFERENCES

DRAFT FINAL

REFERENCES

Foster and Chrostowski. 1986. Sara A. Foster and Paul C. Chrostowski, ICF Clement Assoc.Integrated Exposure Model for Use of Tap Water Contaminated with Volatile OrganicChemicals. 79th Annual Meeting of the Air Pollution Control Association, Minneapolis,Minnesota. June 1986.

Foster and Chrostowski. 1987. Sara A. Foster and Paul C. Chrostowski, ICF Clement Assoc.,Washington, D.C. Inhalation Exposure to Volatile Organic Contaminants in the Shower. 80th

Annual Meeting of the Air Pollution Control Association, New York, New York. June 21-26,1987.

Gilliam, J.W. 1994. "Riparian Wetlands and Water Quality." J. Environ Q. Vol. 23:896-900.

Massachusetts Department of Environmental Protection. (MADEP). 1997. Groundwater Useand Value Determination Pilot, Industi-Plex Superfund Site. August 1997.

Masters, 1991. Introduction to Environemntal Engineering and Science, Gilbert M. Masters,Prentice-Hall, Inc., 1991.

Metcalf and Eddy, Inc. (M&E). 2004. Baseline Human Health and Ecological Risk Assessment,Wells G&H Superfund Site, Aberjona River Study, Operable Unit 3, Woburn, Massachusetts.Prepared for the U.S. Environmental Protection Agency. Contract No. 68-W6-0042. September2004.

Reilly, W. 1991. U.S. Environmental Protection Agency. Testimony for July 10, 1991 Hearingbefore the Senate Subcommittee on Environmental Protection regarding Section 404 of theClean Water Act.

TtNUS, 2005a, Draft Final MSGRP Remedial Investigation Report, Industri-Plex Site, Woburn,MA. Tetra Tech NUS, Inc. March 2005

TtNUS, 2005b, Draft Final MSGRP Feasibility Study Report, Industri-Plex Site, Woburn, MA.Tetra Tech NUS, Inc. June 2005

U.S. Environmental Protection Agency (USEPA). 1989. Risk assessment guidance forSuperfund. Volume I: Human health evaluation manual. Part A. Interim Final. EPA/540/1-89/002. December 1989.

U.S. Environmental Protection Agency (USEPA). 1994a. Revised interim soil lead guidance forCERCLA sites and RCRA corrective action facilities. Office of Solid Waste and EmergencyResponse. Washington, D.C. OSWER Directive 9355.4-12. July 1994.

U.S. Environmental Protection Agency (USEPA). 1994b. Risk updates, no. 2. USEPARegion I. August 1994.

U.S. Environmental Protection Agency (USEPA). 1997a. Exposure factors handbook. Office ofResearch and Development. Washington, D.C. August 1997.

RI051306DF R-1 Tetra Tech NUS, Inc.

DRAFT FINAL

U.S. Environmental Protection Agency (USEPA). 1999. Update of Ambient Water QualityCriteria for Ammonia. EPA-822-R-99-014. December 1999.

U.S. Environmental Protection Agency (USEPA). 2002. National Recommended Water QualityCriteria. Federal Register. December 27, 2002.

U.S. Environmental Protection Agency (USEPA). 2004. Preliminary remediation goals table.Region 9 technical support team. Office of Superfund Programs. Region IX. October 2004.

U.S. Environmental Protection Agency (USEPA). 2004b. Drinking Water Standards and HealthAdvisories. Office of Water. Washington, D.C. Winter 2004.

U.S. Environmental Protection Agency (USEPA). 2005. Integrated risk information system(IRIS). Environmental Criterion and Assessment Office. August 2005.

RI051306DF R-2 Tetra Tech NUS, Inc.

ill*

APPENDIX A

NATURAL ATTENUATION STUDY AMMONIA DATA IN SURFACE WATER

mil

June 24, 2005

MEMORANDUM ,

** SUBJECT: Industri-Plex Superfund Site and GSIP Study Area; Ammonia Data for WaterQuality Samples

— FROM: Robert Ford, EPA/ORD

—. TO: Joseph LeMay, RPM EPA/Region 1

Attached are tables that document measurements of temperature, pH, and dissolved ammonia-nitrogen in water samples collected from ground water, surface water, and sediment pore waterwithin the Industri-Plex Site boundary and GSIP Study Area during the period October 1999 -September 2004 (Tables 1-16). The positions of sampling locations are shown in Figures 1-3.Analytical measurements were made according to procedures specified in the NaturalAttenuation Study Work Plan (Revision 2; September 14, 2000).

Table 1. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during snap-shot ground water sampling on1 October 13-21,1999 at the Industri-Plex Site and GSIP Study Area. The following abbreviations are used within the table: ft bgs = feetbelow ground surface, NM = not measured.

LocationA01-1A01-2A02-1A03-1A03-2A04-1A04-2A04-3A05-1A06-1A06-2A07-1A07-2A08-1A08-2A08-3A09-1A09-2A09-3At 0-1A10-2A10-3A11-1A11-2A11-3A12-1A12-2A12-3A13-1A13-2A13-3A13-4

Date10/14/9910/15/9910/14/9910/15/9910/15/9910/15/9910/15/9910/15/9910/15/9910/18/9910/18/9910/18/9910/18/9910/19/9910/19/9910/19/9910/19/9910/19/9910/19/9910/20/9910/20/9910/20/9910/20/9910/20/9910/20/9910/20/9910/21/9910/21/9910/20/9910/20/9910/20/9910/20/99

ScreenDepthft bgs

32.7541.7512.009.00

19.0015.0024.7532.508.50

15.5025.5013.5023.509.00

19.0039.0012.5022.5043.0010.0020.0030.0010.5020.5030.5012.0022.0032.007.50

17.5034.5045.00

Depth toWaterTable

ftNMNM

2.251.00

11.005.29

15.0422.79

NMNMNMNMNM

3.4213.4233.422.83

12.8333.33

NMNMNM

1.6711.6721.674.70

14.7024.70

1.0811.0828.0838.58

Depth toBedrock

ft bgsNMNM

14.0822.0022.0032.5032.5032.508.50

27.5027.50

NM

NM

64.0064.0064.0047.0847.0847.08

NM

NM

NM

NM

NM

NM

NM

NM

NM

45.0045.0045.0045.00

Temp.°C

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

7.508.10NMNM

11.40NM

NM

11.1011.60

NM

NM

NM

12.8011.9012.60

NM

NM

NM

NM

pH6.62NM

6.706.616.666.92NM

NM

6.727.276.266.036.396.726.577.076.14NM

NM

6.467.147.516.687.807.796.196.376.586.888.04NM

NM

NH3-Nmg N/L

63.722.4

79.31.9

1.6

18.86.0

1.5

3.4

8.6

3.5

0.8

0.2

0.9

1.3

96.40.8

10.7NM

NM

235.7810.1

8.8

709.377.716.314.618.6

1142.61141.8

NM

244.2

Table 2. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during snap-shot ground water sampling on November 30 - December 3,1999at the Industri-Plex Site apd GSIP Study Area. The following abbreviations are used within the table: ftbgs = feet below ground surface, NA = not applicable, ND = not detected, NM = not measured.

LocationA14-1A14-2A14-3

A15-11

A16-1A16-2A17-1A17-3A18-1A19-1

Date11/30/9911/30/9911/30/9911/30/9912/01/9912/01/9912/01/9912/01/9912/02/9912/02/99

ScreenDepthft bgs

10.0015.0030.0011.807.00

12.007.00

17.0019.008.50

Depth toWaterTable

ft0.715.71

20.71

NA

1.676.673.00

13.0010.191.50

Depth toBedrockft bgs

NM

NM

NM

11.80NM

NM

NM

NM

NM

NM

Temp.°C

5.2

6.4

NM

NM

6:3

NM

9.6

NM

13.010.7

PH5.566.40NM

NM

6.13NM

7.11NM

6.276.01

NH3-Nmg N/L

3.4

NM

NM

ND

NM

NM

NM

NM

1.2

ND

1 Ground water yield too low to connect to flow cell.'

Table 3. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during snap-shot and fixed point ground water sampling on March 27 - April 6,2000 at the Industri-Plex Site and GSIP Study Area. The following abbreviations are used within thetable: ft bgs = feet below ground surface, NA = not applicable, NS = not sampled, NM = not measured.

Location

A20-1

A20-2A21-1A21-2A22-1A22-2A23-1

A23-2'TW01TW02TW03TW04TWOS

TW06-1TW06-2TW06-3TW07-1TW07-2TW07-3TW08-1TW08-2TW08-3

Date

3/28/00

3/28/003/30/00

1 3/30/003/31/003/31/003/31/004/3/003/29/004/6/00

3/29/003/29/00

NS

4/5/004/5/004/5/004/4/004/5/004/5/004/6/004/6/004/6/00

ScreenDepthft bgs

5.00

10.005.50

13.509.75

14.759.75

16.759.00 2

14.002

13.002

14.00 2

11.002

12.2517.5022.5012.2515.0020.008.00

13.0017.50

Depth toWaterTable

ft2.38

7.382.00

10.003.508.502.759.75

NA

NA

NA

NA

NA

NM

NM

NMNM

NM

NM

NM

NM

NM

Depth toBedrockftbgs

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

47.0847.0847.08

NM

NM

NM

NM

NM

NM

Temp. ,°C

11.9

12.413.410.213.511.813.7

NM

11.18.1

13.810.9NM

13.1

10.99.8

13.112.011.86.7

6.1

8.1

PH

6.47

6.216.626.885.536.244.64NM

NM

7.566.065.94NM

6.44

5.995.046.165.906.038.025.426.70

NH3-NmgN/L

2.0

0.9

0.8

77.79.8

31.72.2

2.2

874.01260.0

37.92.5

NM

0.5

NM

7.45.6

4.1

14.9722.0

ND

229.0

1 Ground water yield too low to connect to flow cell.2 Screen depth is below water surface of Hall's Brook Holding Area Pond determined at the time of installation.

Table 4. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during fixed point ground water sampling on May 16-18, 2000 at the Industri-Plex Site and GSIP Study Area. The following abbreviations are used within the table: ft bgs = feetbelow ground surface, NA = not applicable, NM = not measured.

ill

LocationTW01TW02TWOSTW04TWOS

TW06-1TW06-2TW06-3TW07-1TW07-2TW07-3TW08-1TW08-2TW08-3TW10-1TW10-2TW10-3

Date5/17/005/16/005/16/005/16/005/17/005/16/005/16/005/16/005/16/005/16/005/16/005/17/005/17/005/17/005/16/005/16/005/16/00

ScreenDepthft bgs

9.00 1

14.00 '13.001

14.001

11.00 1

12.2517.5022.5012.2515.0020.008.00

13.0017.5010.5815.5820.58

Depth toWaterTable

ftNA

NA

NA

NA

NA

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM


NM

NM

NM

NM

NM

47.0847.0847.08

NM

NM

NM

NM

NM

NM

NM

NM

NM

Temp.°C

14.116.816.615.414.114.614.113.716.013.815.315.514.315.914.815.416.2

PH7.267.725.956.195.226.325.835.255.725.825.867.825.336.636.656.126.24

NH3-NmgN/L

1065.01191.0

41.32.5

8.0

NM

1.2

8.4

4.9

5.5

16.5851.0

2.4

220.02.3

26.835.2

1 Screen depth is below water surface of Hall's Brook Holding Area Pond determined at the time of installation.

Table 5. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during fixed point ground water sampling ori August 22-30, 2000 at the Industri-Plex Site and GSIP Study Area. The following abbreviations are used within the table: ft bgs = feetbelow ground surface, NA = not applicable, ND = not detected, NM = not measured.

LocationTW01TW02TW03TW04TWOS

TW06-1TW06-2TW06-3TW07-1TW07-2TW07-3TW08-1TW08-2TW08-3TW10-1TW10-2TW10-3TW11

TW12-1TW12-2TW13

Date8/23/008/23/008/22/008/23/008/23/008/22/008/22/008/22/008/23/008/23/008/23/008/23/008/23/008/23/008/22/008/22/00

i 8/22/008/30/008/30/008/30/008/30/00

ScreenDepth

' ft bgs9.00 1

14.00'13.001

14.001

11.00 1

12.2517.5022.5012.2515.0020.008.00

13.0017.5010.5815.5820.583.503.508.503.50

Depth toWaterTable

ftNANANANANANMNMNMNMNMNMNMNMNMNMNMNM

1.501.501.501.50


NMNMNMNMNM

47.0847.0847.08

NMNMNMNMNMNMNMNMNMNMNMNMNM

Temp.(°C)

20.717.921.418.718.921.920.518.615.717.115.620.621.222.122.020.819.017.720.120.122.4

PH7.267.445.976.135.126.155.835.21

5.906.076.047.805.146.786.456.046.266.146.286.256.28

NH3-NmgN/L

897.01170.0

37.9

2.38.21.01.39.05.35.7

19.3916.0

ND276.0

2.024.834.8

1.50.10.21.5


Table 6. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected .during fixed point ground water sampling on March 28 - April 3, 2001 at theIndustri-Plex Site and GSIP Study Area. The following abbreviations are used within the table: ftfeet below ground surface, NA = not applicable, NS = not sampled, NM = not measured.

LocationTW01TW02.TW03TW04TWOS


TW12-1TW12-2TW13

Date4/3/20013/29/01

NS3/29/01

NSNSNSNS

3/29/013/29/013/29/014/3/01

NS4/3/014/2/01

' 4/2/014/2/01

NSNSNSNS

1 ScreenDepthftbgs

9.00 '14.00 1

13.00 1

14.001

11.00 1

12.2517.5022.5012.2515.0020.008.00

13.0017.5010.5815.5820.583.503.508.503.50

Depth toWaterTable

ft)NANANANANANMNMNMNMNMNMNMNMNMNMNMNM

1.501.501.501.50

Depth toBedrockftbgs

NMNMNMNMNM

47.0847.0847.08

NMNMNMNMNMNMNMNMNMNMNMNMNM

Temp.(°C)

7.48.6NM7.5NMNMNMNM8.57.69.78.3NM9.84.24.96.6NMNMNMNM

PH7.027.67NM

6.73NMNMNMNM

5.996.236.148.02NM

6.736.726.386.46NMNMNMNM

NH3-NmgN/L

1090.01110.0

NM1.9NMNMNMNM5.27.2

18.2405.0

NM303.0

0.918.031.4NMNMNMNM


Table 7. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during fixed point ground water sampling on September 13-17, 2001 at theIndustri-Plex Site and GSIP Study Area. The following abbreviations are used within the table: ft bgs :feet below ground surface, NA = not applicable, ND = not detected, NS = not sampled, NM = notmeasured.

LocationTW01TW02TW03TW04TWOS


TW12-1TW12-2TW13

Date9/11/019/11/01

NS1 9/11/01

9/13/01NS

NS

NS

9/11/019/11/019/11/019/10/019/10/019/10/019/12/01'9/12/019/12/01

NS

NS

NS

NS

ScreenDepthft bgs

9.00 '14.00 1

13.001

14.001

11.00 '12.2517.5022.5012.2515.0020.008.00

13.0017.5010.5815.5820.583.503.508.503.50

Depth toWaterTable

ftNANANA

NA

NA

NM

NM

NM

NM

NM

NM

NM

NM

NM

NM

NMNM

1.501.501.501.50

Depth toBedrock

ft bgsNM

NM

NM

NM

NM

47.0847.0847.08

NM

NM

NM

NM

NM

NM

NM

NMNM

NM

NM

NM

NM

Temp.°C

23.721.8NM

22.819.7NM

NM

NM

17.618.817.821.321.221.321.521.222.2NM

NM

NM

NM

PH7.377.39NM

6.135.64NM

NM

NM

5.655.905.737.665.116.786.676.256.25NM

NM

NM

NM

NH3-NmgN/L

1380.01180.0

NM

11.78.5

NM

NM

NM

7.4

27.58.7

797.0ND

365.00.4

27.433.8NM

NM

NM

NM


Table 8. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during surface water sampling on November 30 - December 3,1999 in theHall's Brook Holding Area Pond. Data were collected using a YSI submersible multi-electrode soncje.The following abbreviations are used within the table: NM = not measured.

m

LocationWN50

WN100WN150WN200WN250WN260WC50

WC100WC150WC200WC250WS50

WS100WS150WS200WS250WS300

Date1 1/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/9911/30/99

1 11/30/9911/30/9911/30/99

SondeDepth

cm50

100

150

200

250

260

50

100

150

200

250

50

100

150

200

250

320

Temp.°C

7.077.147.299.44

11.53NM

7.07

7.087.11

8.059.7

6.99e.Sg7.019.3

9.5410.16

PH6.326.326.226.086.49NM

6.346.316.326.126.496.296.3

6.296.216.456.84

NH3-NmgN/L

9.509.87

17.0042.50

NM

NM

9.369.349.86

33.60NM

9.589.549.57NM

NM

NM

Table 9. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during surface water sampling on March 27 - April 6, 2000 in the Hall's BrookHolding Area Pond. Data were collected using a YSI submersible multi-electrode sonde. The followingabbreviations are used within the table: NM = not measured.

LocationWN50

WN100WN150WN175WN200WN225WN250WN300WC50

WC100WC150WC200WC250WC275WC300WS50

WS100WS150WS200WS250WS300WS340

Date4/4/004/4/004/4/00

. 4/4/004/4/004/4/004/4/004/4/004/4/004/4/004/4/004/4/004/4/004/4/004/4/00'4/4/004/4/004/4/004/4/004/4/004/4/004/4/00

SorideDepth

cm50

100

150

175

200

225

250

300

50

100

150

200

250

275

300

50100

150200

250

300

340

Temp.°C10.8310.8210.8710.8710.8910.9110.8310.4411.3911.4611.5211.059.959.959.60

11.6110.92

10.7810.409.318.988.94

pH6.79

6.957.027.047.056.967.197.517.036.986.976.816.5

6.587.356.996.87

6.786.7

6.397.127.33

NH3-N •mgN/L

7.4

7.4

7.5

8.2

8.0

8.4

99.1

597.07.6

7.3

7.3

24.18.0

27.3NM

7.98.3

8.89.1

12.780.5NM

10

Table 10. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during surface water sampling on August 22-30, 2000 in the Hall's BrookHolding Area Pond. Data were collected using a YSI submersible multi-electrode sonde. The followingabbreviations are used within the table: NS = not sampled, NM = not measured.

LocationWN50WN100WN150WN180WN200WC50

WC100WC150WC200WC250WS50

WS100WS150WS200WS240

Date8/25/008/25/00

' 8/25/00

8/25/008/25/008/25/008/25/008/25/008/25/008/25/008/29/008/29/008/29/008/29/008/29/00

, SondeDepth(cm)

50100150

180

200

50

100

150

200

240

50

100

150

200

240

Temp.CO

19.0018.5417.7615.2914.2822.2619.2317.7415.2315.2320.4719.3018.5715.9915.08

PH7.127.287.167.377.207.527.397.357.768.026.756.586.617.217.31

NH3-Nmg N/L

13.114.715.568.8

132.014.815.244.061.0

119.016.031.160.3

103.0119.0

11

Table 11. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during surface water sampling on March 28 - April 3, 2001 in the Hall's BrookHolding Area Pond. Data were collected using a YSI submersible multi-electrode sonde.

LocationWN50

WN100WN150WN200WN250WN270WN310WC50

WC100WC150WC200WC250WC300WS50

WS100WS150WS200WS250WS300

Date4/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/014/2/01

SondeDepth(cm)

50

100

150

200

250

270

310

50

100

150

200

250

300

50

100

150

200250

300

Temp.(°C)

4.1

4.1

4.1

4.1

4.4

4.6

6.4

4.0

4.5

4.8

4.9

4.8

4.9

5.1

5.3

5.2

5.45.2

5.2

PH6.346.136.166.166.716.466.505.105.235.035.826.296.536.206.176.436.636.726.78

NH3-NmgN/L

5.4

5.5

6.0

6.4

7.0

6.8

95.55.0

5.3

4.8

5.1

5.1

5.2

5.3

5.1

5.1

5.15.1

5.1

12

Table 12. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during surface water sampling on September 13-17, 2001 in the Hall's BrookHolding Area Pond. Data were collected using a YSI submersible multi-electrode sonde. The followingabbreviations are used Within the table: NM = not measured.

LocationWC50

WC100WC150WC200WC250WC300WC320WS50


Date9/17/019/17/019/17/019/17/019/17/019/17/01

9/17/019/17/019/17/019/17/019/17/019/17/019/17/019/17/01

SondeDepth(cm)

5010015020025030032050

100150200250300330

Temp.(°C)

16.416.316.516.516.015.715.617.016.816.416.816.015.214.7

PH6.586.566.336.426.606.576.726.666.696.376.506.656.797.17

NH3-Nmg N/L

16.417.944.879.6

115.0151.0

ftM

15.124.038.090.6

112.0117.0

NM

13

Table 13. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during surface water sampling on September 21, 2004 in the Hall's BrookHolding Area Pond. Data were collected using a YSI submersible multi-electrode sonde. The followingabbreviations are used within the table: NM = not measured.

LocationWS50


Date9/20/049/20/049/20/049/20/04

' 9/20/049/20/049/20/04

SondeDepth(cm)

50100150200300350400

Temp.(°C)

16.7215.9014.1914.1514.1214.0914.90

PH6.426.286.186.236.336.266.87

NH3-Nmg N/L •

2.02.22.42.42.34.4

104.0

14

Table 14. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements for inlets and outlet of the Hall's Brook Holding Area Pond. The following abbreviationsare used within the table: NM = not measured.

LocationHall's Brook Inlet

,

Atlantic Ave. Drainway

HBHA Pond Outlet

Date4/5/005/18/008/30/004/5/019/16/019/20/044/5/005/18/008/24/00, A 1

8/24/00, B '4/5/019/20/044/5/005/18/008/30/004/5/019/16/019/20/04

Temp.(°C)

11.514.019.4

11.015.1NM

11.1NM

16.718.2NM

NM

12.016.022.610.921.6NM

PH7.937.447.226.866.97NM

7.14NM

6.335.94NM

NM

6.707.146.956.766.73NM

NH3-Nmg N/L

5.2

7.8

7.6

5.5

4.1

3.3

0.1

NM

NM

NM

2.2

0.7

7.4

8.0

16.06.9 .

17.24.0

1 Dates '8/24/00, A' and'8/24/00, B' refer to samples collected at two closely spaced locations at Atlantic Avenue Drainway outlet.

m

15

Table 15. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected during water sampling from North Multi-Level Station in the Hall's Brook HoldingArea Pond. The following abbreviations are used within the table: NM = not measured.

LocationNML-1

NML-2

NML-3

NML-4

NML-5

NML-6

NML-7

NML-8

NML-9

NML-1 0

Date4/5/014/10/015/14/019/14/019/21/044/5/01

4/10/015/14/015/31/019/14/019/21/044/5/014/10/015/14/019/14/019/21/044/5/01

4/10/015/14/019/14/019/21/04

' 4/5/014/10/015/14/019/13/019/21/044/5/01

4/10/015/14/015/31/019/13/019/21/044/5/01

4/10/015/14/019/13/019/21/044/5/01

4/10/015/14/019/13/019/21/044/5/014/10/015/14/019/14/019/21/044/5/014/10/015/14/019/13/019/21/04

., Screen" Depth

(cm)69

119

169

219

269

319

369

419

469

519

Temp.<°C)

NM11.814.115.8NM9.5

10.513.615.616.1NMNM

11.413.916.4NM9.4

10.914,216.3NM9.9

10.614.122.9NM9.6

10.614.815.223.916.09.9

11.314.824.816.810.410.716.427.517.9NMNMNMNMNM

10.112.715.921.318.6

PHNM

6.186.636.25NM

6.536.156.546.446.31NMNM

6.286.215.23NM

6.536.546.246.11NM

6.426.716.546.68NM

6.646.566.817.036.846.987.146.626.736.736.936.866.686.746.796.83NMNMNMNMNM

7.497.287.097.467.14

NH3-NmgN/L

NMNM

12.217.2NM8.2NM

16.1NM

14.9NMNMNM

21.318.3NM9.9NM

42.680.3NM

63.2NM

323.0449.0

NM297.0

NM817.0

NM1050.0933.0

1170.0NM

1180.01160.0

11101150.0

NM1230.01270.01100.01100.0

NM1890.02050.0

NM1980.0

NM2100.02110.01670.0

16

Table 16. Summary of temperature and pH data (field measurements) and laboratory ammoniameasurements collected from Discrete Multi-level Samplers installed within the Hall's Brook Holding AreaPond. The following abbreviations are used within the table: ND = not detected, NM = not measured,SWI = sediment-water interface.

Location

DMLS-1

Installed: 4/3/00

Retrieved:8/29/00

DMLS-2

Installed:8/30/00

Retrieved:4/3/01

OMLS-3

Installed' 4/3/01

Retrieved:9/12/01

RelativeDepth

cm '0.011.422.9 '34.345.7

57.2 '

74.6

86.0

97.5

108.9

120.3

0.0

11.4

22.9

34.3

45.7

57.2

74.6

86.0

97.5

108.9

120.3

0.0

11.4

22.9

34.3

45.7

57.2

74.6

86.0

97.5108.9

120.3

PHNM

NM

NM

NM

NM

NM

NM

NM

NM ,

NM

NM

6.85

6.90

7.49

NM

7.31

7.46

7.38

NM

7.27

NM

7.61

6.96

6.90

6.93

6.95

7.07

6.81

6.84

6.97

6.866.86

6.88

NH3-Nmg N/L

ND

344.3

368.5405.9

381.7

374.0

355.3

343.2

365.2

NM

NM

238.6

387.2

1762.2

1930.1

2073.9

2037.9

2037.9

NM

2014.0

2325.7

2349.7

738.1

658.2

719.8

655.8

637.1

610.2

600.2

588.7

584.8573.7

479.5

CommentsAbove SWIAbove SWIAbove SWIAbove SWIAbove SWIAbove SWIBelow SWIBelow SWIBelow SWI

Below SWI; sample cell not recoveredBelow SWI; sample cell not recovered

Above SWIAbove SWIAbove SWIBelow SWIBelow SWIBelow SWIBelow SWI

Below SWI ; sample cell not recoveredBelow SWIBelow SWIBelow SWIBelow SWIBelow SWIBelow SWIBelow SWIBelow SWIBelow SWIBelow SWIBelow SWfBelow SWIBelow SWIBelow SWI

17

Figure 1. Snap-shot ground water sampling locations for the Industri-Plex Site and GSIP Study Area.Image was derived from April 2001 aerial photograph obtained from MassGIS.

18

Figure 2. Fixed ground water monitoring locations for the Industri-Plex Site and GSIP Study Area. Imagewas derived from April 2001 aerial photograph obtained from MassGIS.

IN

19

Figure 3. Surface water and sediment porewater monitoring locations within the Hall's Brook HoldingArea Pond. Image was derived from November 1995 aerial photograph obtained from MassGlS.

**.,. Atlantic Avenue Draliiway

DMLS-1NML

A *DMLS-2

North Surface Water

DMLS-3

Hall's Brook Inlet

Central Surface Water

South Surface Water

WfeHA Pond Outlet

20

APPENDIX B

JULY 2005 SURFACE WATER AND SOIL SAMPLE RESULTS

£ ** \

USE/UNITED STATES ENVIRONMENTAL PROTECTION AGENCY'

REGION 11 Congress Street, Suite 1100BOSTON, MA 02114-2023

Memorandum

Date: August 16, 2005

Subject: Industri-Plex Sampling Results

From: Jason Turgeon, OES

To: Joe LeMay, OSRR

CC: kich Fisher, OEME

Joe,

Enclosed are the sampling results from our water sampling in the Halls Pondwatershed on July 11, 2005, and our soil sampling in the Rifle Club area on July12, 2005.

The sampling results are compiled in two tables for quick reference, andaccompanied by aerial maps detailing the sampling locations. Also enclosed arecopies of the sampling log. Following these are the complete analytical reportsfrom Chelmsford. If you would like the tables and maps in an electronic format,please let me know. You can reach me at 8-1634.

Jason

Industri-Plex Water Sampling Results, Halls Pond Watershed AreaSampling Date: July 11, 2005

Analyte (m9/L)Sample ID

CULV-01COMBAT 'J?.xtS>'1-'.OUTLET-01185NB-HALLS-01:185NB-RR01LANDFILL4.F01 'LANDFILL-LF02l DFILL-RRGJ ;RR03fsm .?^s^^my' i-HALLS-22MAPLE-01H/UXS-20THJRB-4W

BromideND<0.50ND<0.50ND<0.50

fNCkO.50ND<0.50ND<0.50ND<0.50ND<0.80ND<0.50ND<0.SQsND<0.50ND<0.50

Chloride40

103*83*104*105*130*131*112*86*

' 92*

108*; 105*

FluorideND<0.50ND<0.50ND<0.50ND<0.50

0.6ND<0.50ND<0.50

0.61.1

ND<0.50ND<0.50ND<0.5D

Nitrate5.93,62.42.67.22;7,4.05,64.13.02.92,2

Nitrite0.15

NEMUQND<0.10ND<0;10

0.210.240.39

-=0.1B'ND<0.10ND<0.10ND<0.10ND<0.10

Sulfate24

, .-23,:.-31

.-'tast-er

••,.'38:'-39

•;,-5S*.;'85*

- '24 •;•12

••• - 11

Nitrate (N)1.3

:.'V0.8t;';,-0.54

•:*QJSB-:-V1.6

•:~:-~.0.61-i i0.90

'•\'<t. 1.3r«'0.93

7i;;, 0.68 --nv0.650.50

Nitrite (N)0.05

N0<0.03ND<0.03NP<0.03

0.06s>.ao7 •

0.12;.fcmO£r..;'ND<0.03ND<0;03;ND<0.03:NDi:0.03

o-Phospate (P)ND<0.03

> NO<O.Q3vND<0.03

-.:--• NEMM p-ND<0.03NO<0,®rND<0.03

•:- MMK00;: •;-ND<0.03

;, NO<Oi03;lND<0.03

.;• ND<o.o3:-

* Estimated value, outside calibration curveND<0.50 = Not Detected at a reporting limit of 0.50 mg/L

Note: For clarity, the prefix "IP" has been removed from sample ID's.

Industri-Plex Soil Sampling Results, Rifle Club Area Sampling Date: July 12,2005

RC-05

RC-07

RC-09

RC-11

8300

2900

ND<12 ND<24

toalyte (ing/Kg)Sample ID Aluminum Antimony Arsenic Barium Beryllium Cadmium ICalcium [Chromium ICobart [Copper Iron I Lead Magnesium Manganese Nickel Potassium ISelenium Silver I Sodium [Thallium

ND<1.2 I ND<3.2

ND<11 ND<22 13

3100 L ND<10 ND<20J 40^ ND<1.0^ SSSS R^rfp^TTT

2200 I 12 |7JD<20| 7~[ND<0.99

ND<3.0 5400

79 J20pbp| 240!?*»J .v.f.JByyy^y*»P%ffr

21 I 7700 | 370 620

ND<3.0 I 130

|ND<3.3| 4 I 2900] 52

12 ~~|ND<3.0| 19 I 67001 240

8.4 |ND<3.0| 11 I 36001 160

23

3.8

33

' Estimated value, outside calibration curveND<15 = Not Detected at a reporting limit of 15 mg/Kg

Note: For clarity, the prefix "IP" has been removed from sample ID'S.

f/EPANew England

DRAFT: Aug; 12*, ZOOS

Roads

Hydro

Sc.im>

T Industri-Hex Water SamplingHalls Pond Watershed

N

1

a Jf£*4F.

RC-10 n4RC-09 cA—RC-08 a^

RG-07 nRG-Q6 a 4 ,RC-05 n

RC-04 a H

RC-03 n

RG-02 °

RC-01

<vEPANew England

DRAFT Ajjgmtlah, 2005

Roads

Rifle Club P*h l*joi

Industri-Plex Soil SamplingRifle Club Area

1 tacktf Kb ltd ftn

ALPHA ANALYTICAL LABORATORIES

Eight Walkup DriveWesthorough, Massachusetts 01581-1019(508) 898-9220 www.alphalab.com

MA:M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI:65 NY:11148 NJ:MA935 Army:USACE

CERTIFICATE OF ANALYSIS

Client: U.S. EPA Laboratory Job Number: L0507683

Address: N.'E. Regional Lab-Office of Env. Meas., 11 Technology Drive

North Chelmsford, MA 01863-2431 Date Received: 12-JUL-2.005

Attn: Mr. Dan Boudreau

Project Number: 05070015

Site: INDUSTRI- PLEX

Date Reported: 26-JUL-2005

Delivery Method: Alpha

ALPHA SAMPLE NUMBER

L0507683-01L0507683-02L0507683-03L0507683-04L0507683-05L0507683-06L0507683-07L0507683-08L0507683-09L0507683-10L0507683-11 'L0507683-12L0507683-13L0507683-14

CLIENT IDENTIFICATION

IP-CULV-01

IP-COMB-01IP-OUTLET-01IP-185NB-HALLS-01

IP-185NB-HALLS-01D

IP-185NB-RR01

IP-185NB-RR01D

IP-LANDFILL-LF01

IP-LANDFILL-LF02

IP-LANDFILL-RR02•

IP-RR03

IP-RR04

IP-HALLS-22 MAPLE-01

IP-HALLS-20 THIRD-01

SAMPLE LOCATION

I, the undersigned, attest under the pains and penalties of perjury that, based upon my personal inquiry of those responsible

for obtaining the information, the material contained in this report is, to the best of my knowledge and belief, accurate and

complete. This certificate of analysis is not complete unless this page accompanies any and all pages of this report.

Authorized bv:Doualas SheelevThis document electronically signed

07260510:06 Page 1 of 19

ALPHA ANALYTICAL LABORATORIESCERTIFICATE OF ANALYSIS

MA:M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI:65 NY:11148 NJ:MA935 Army:OSACE

Laboratory Sample Number: L0507683-01IP-CULV-01

Sample Matrix: ' . WATER

Condition of Sample: Satisfactory

Number' & Type of Containers: 1-Plastic

Date Collected: ll-JUL-2005 10:30Date Received : 12-JUL-2005Date Reported : 26-JUL-2005

Field Prep: None

PARAMETER RESULT UNITS RDL REF METHOD DATE IDPREP ANAL

Nitrogen, Ammonia !.03 mg/1 0 .075 44 350.1 0721 17:30 0722 12:14 AT

Comments: Complete list of References and Glossary of Terms found in Addendum I

07260510:06 Page 2 of 19

•ii


MA:M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI:65 NY:11148 NJ:MA935 Army.USACE

Laboratory Sample Number: L0507683-02IP-COMB-01

Sample Matrix: WATER


Number & Type of Containers: 1-Plastic


Field Prep: None


Nitrogen, Ammonia 2.10 mg/1 0.075 44 350.1 0721 17:30 0722 12:15 AT


07260510:06 Page 3 of 19

ALPHA ANALYTICAL LABORATORIESCERTIFICATE OP ANALYSIS

MA:M-MA086 NH:200301-A CT-.PH-0574 ME:MA086 RI:65 NY:11148 NJ:MA935 Army:USACE

Laboratory Sample Number: LO507683-03IP-OUTLET-01



Number' & Type of Containers: 1-Plastic


Field Prep: None




07260510:06 Page 4 of 19



Laboratory Sample Number: L0507683-04IP-185NB-HALLS-01





Field Prep: None


Nitrogen, Ammonia ND mg/1 0.075 44 350.1 0721 17:30 0722 12:20 AT


07260510:06 Page 5 of 19



Laboratory Sample Number: LO507683-05IP-185NB-HALLS-01D




Date Collected: ll-JUL-2005 13:15Date Received : 12-JUL-2005Date Reported : 26-JUL-20C5

Field Prep: None




07260510:06 Page 6 of 19

ritf



Laboratory Sample Number: LO507683-06IP-185NB-RR01





Field Prep: None




07260510:06 Page 7 of 19


HA:M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI:65 NY:11148 NJ:HA935 Army:USAGE

Laboratory Sample Number: L0507683-07IP-185NB-RR01D





Field Prep: None




07260510:06 Page 8 of 19



Laboratory Sample Number: L0507683-08IP-LANDFILL-LF01





Field Prep: None




07260510:06 Page 9 of 19


MA:M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI:65 NY:11148 NJ:MA935 Army:OSACE

Laboratory Sample Number: LO507683-09IP-LANDFILL-LF02



Number's Type of Containers: 1-Plastic


Field Prep: None


Nitrogen, Ammonia 11.0 mg/1 0 . 075 44 350.1 0721 17:30 0722 12:26 AT


07260510:06 Page 10 o£ 19



Laboratory Sample Number: L0507683-10IP-LANDFILL-RR02





Field Prep: None


Nitrogen, Ammonia 11.3 mg/1 0 . 075 44 350.1 0721 17:30 0722 12:31 AT


07260510:06 Page 11 of 19

Ml



141 Laboratory Sample Number: L0507683-11IP-RR03



Number fc Type of Containers: 1-Plastic


Field Prep: None


Nitrogen, Ammonia mg/1 0.075 44 350.1 0721 17:30 0722 :2:31 AT


07260510:06 Page 12 of 19


MA:M-MAOS6 NH:200301-A CT:PH-0574 ME:MA086 RI:65 NY:11148 NJ:MA935 Army:USAGE

Laboratory Sample Number: L0507683-12IP-RR04



Number S Type of Containers: 1-Plastic


Field Prep: None


Nitrogen, Ammonia 0.275. mg/1 0.075 44 350.1 0721 17:30 0722 12:32 AT


07260510:06 Page 13 of 19

ili


MA-.M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI: 65 NY:11148 NJ:MA935 Army:USACE

Laboratory Sample .Number: L0507683-13IP-HALLS-22 MAPLE-01





Field Prep: None


Nitrogen, Ammonia ND mg/1 0 . 075 44 350.1 0721 17:30 0722 12:33 AT


07260510:06 Page 14 of 19


MA:M-MA086 NH:200301-A CT:PH-0574 ME:MA086 RI: 65 NY:11148 NJ:MA935 Army:OSACE

Laboratory Sample Number: L0507683-14IP-HALLS-20 THIRD-01





Field Prep: None




07260510:06 Page 15 of 19

ALPHA ANALYTICAL LABORATORIESQUALITY ASSURANCE BATCH DUPLICATE ANALYSIS

Laboratory Job Number: L0507683

Parameter Value 1 Value 2 Units RPD RPD Limits

Nitrogen, Ammonia for sample(s) 01-14 (L0507683-04, WG208238-4)Nitrogen, Ammonia ND ND mg/1 NC

07260510:06 Page 16 of 19

ALPHA ANALYTICAL LABORATORIESQUALITY ASSURANCE BATCH SPIKE ANALYSES


Parameter ;; % Recovery QC Criteria

Nitr6gen, Ammonia LCS for sample(s) 01-14 (WG208238-2)Nitrogen, Ammonia 96

Nitrogen, Ammonia SPIKE for sample(s) 01-14 (L0507683-06, WG208238-3)Nitrogen, Ammonia 98

07260510:06 Page 17 of 19

ALPHA ANALYTICAL LABORATORIESQUALITY ASSURANCE BATCH BLANK ANALYSIS



Blank Analysis for sample(s) 01-14 (WG208238-1)Nitrogen, Ammonia ND mg/1 0 .075 44 350.1 0721 17:30 0722 i:;:08 AT

07260510:06 Page 18 of 19

ALPHA ANALYTICAL LABORATORIESADDENDUM I

REFERENCES

44. Methods for the Determination of Inorganic Substances in EnvironmentalSamples, EPA/600/R-93/100, August 1993.

GLOSSARY OF TERMS AND SYMBOLSREF Reference number in which test method may be found.METHOD Method number by which analysis was performed.ID Initials of the analyst.ND Not detected in comparison to the reported detection limit.NI Not Ignitable.ug/cart Micrograms per Cartridge.

LIMITATION OF LIABILITIES

Alpha Analytical,, Inc. performs services with reasonable care and diligencenormal to the analytical testing laboratory industry. In the event of an error, thesole and exclusive responsibility of Alpha Analytical, Inc., shall be to re-performthe work at it's own expense. In no event shall Alpha Analytical, Inc. be heldliable for any incidental consequential or special damages, including but notlimited to, damages in any way connected with the use of, interpretation of,information or analysis provided by Alpha Analytical, Inc.

We strongly urge our clients to comply with EPA protocol regarding samplevolume, preservation, cooling, containers, sampling procedures, holding timesand splitting of samples in the field.

07260510:06 Page 19 of 19

• > - ! • • • •ENVIRONMENTAL PROTECTION AGENCY

^ REGION 1

ALPHA Job «1450*1 W3

CHAIN OF CUSTODY RECORD

1 1 * 1 1 1

"To A\f>HA AfVAiY TtCA-L

PROJ. NO.

05070OI5

PROJECT NAME

SAMPLERS: f£*»««u£tJ

RICH ns/Vcne , ,tii/re

STA.NO. DATE TIME STATION LOCATION

NO.

OF

CON-

TAINERS

REMARKS

o.'Ju IP --

i\ JO -O/

rp ._13 15 ZP- -o/3' 15

(3 i JP- |S5

Xp_ 1*5 N8 -30 XP-

/Soo

.X HP-

(5-35 P -

JP -

16-55 IP

V »7.«5 rp -

Relinquishedjjy: (Signtturt)jjy: (Sig

Retfnquished/iW: <Slgn*turt)

Date /Time

iS 19

Date /Time

Relinquished by: ISignftun)

Relinquished by: ISigntnin)

Date /Time

Date /Time

Received by: ISigrutunl

Received by: ISign»tun>

Relinquished by: (Signttunl Date / Time Received for Uboratory by:fSignxurt)

Date /Time

Distribution: Origin*! Accompmitt Shipment; Copy «0 Coordm«Of Freld Fil«

Remarks

1-14778

Joseph LeMay - HBO

US EPA New England Region 1

One Congress StreetBoston, MA 02114-2023

Office of Environmental Measurement & Evaluation* 1 Technology Drive

North Chelmsford, MA 01863-2431

Laboratory Report

July 20,2005 , '


Project: Industri-Plex - Woburn, MAAnalysis: Ion Chromatography AnionsAnalyst: Inna Germansderfer T£"

Analytical Procedure:

All samples were received and logged in by the laboratory according to the USEPA New EnglandLaboratory SOP fpr Sample Log-in.

Samples were analyzed following the EPA Region I SOP, EIASOP-INGDXIC8.

The analysis was performed using either a Dionex DX320 or DX120 Ion Chromatograph.

Date Samples Received by the Laboratory: 7/12/05

Results relate only to the items tested or to the samples as received by the Laboratory. This analytical report shall not bereproduced except in full, without written approval of the laboratory.

If you have any questions please call me at 617-918-8602 .

Sincerely,

Peter PhilbrookChemistry Laboratory Services Coordinator

Qualifiers:

RL = Reporting limitND = Not Detected above reporting limitNA = Not ApplicableNC = Not calculated since analyte concentration is NDJl = Estimated value due to MS recovery outside accceptance criteriaJ2 = Estimated value due to LFB result outside acceptance criteriaJ3 = Estimated value due to RPD result outside acceptance criteriaJ4 = Estimated value due to LCS result outside acceptance criteriaB = Analyte is associated with the lab blank or trip blank contamination. Values are

qualified when the observed concentration of the contamination in the sampleextract is less than 10 times the concentration in the blank.

R = No recovery was calculated since the analyte concentration is greater than four timesthe spike level.

US ENVIRONMENTAL PROTECTION AGENCYNEW ENGLAND LABORATORY

Industri-Plex - Woburn, MA

Ion Chromatography Anions

Client Sample ID:

Date of Collection:

IP-CULV-OI

7/11/2005Lab Sample ID: AA51244

Matrix Water

Date of Analysis: 7/12/05

CAS Number ParameterBromideChlorideFluorideNitrateNitriteSulfate

Concentrationmg/L

ND40

ND5.9

0.1524

RLme/L

0.500.100.500.100.100.10

Qualifier

Comments:

NO2NO3 as Nitrogen / PO4 as Phosphorus

CAS Number ParameterConcentration

mg/LRL

mg/L QualifierNitrate as NitrogenNitrite as Nitrogeno-Phosphate as Phosphorus

1.30.05ND

0.020.030.03

Pagel of 15




Client Sample ID:

Date of Collection:

IP-COMB-OI

7/111/2005Lab Sample ID:

Matrix

AA51245

Water



Concentrationmg/L

ND103ND3.6ND23

RLme/L

0.500.100.500.100.100.10

Qualifier

J

Comments. J- estimated value, outside calibration curve

ill



mg/LRL


0.81NDND

0.020.030.03

Page 2 of 15


Industri-PIex - Woburn, MA


Client Sample ID:

Date of Collection:

IP-OUTLET-OI


Matrix

AA51246

Water



Concentrationmg/L

ND83

ND2.4ND31

RLmg/L

0.500.100.500.100.100.10

Qualifier

J

Comments: J- estimated value, outside calibration curve



mg/LRL


0.54NDND

0.020.030.03

Page 3 of 15




Client Sample ID:

Date of Col lection:

IP-I85NB-HALLS-OI

7/1 1/2005Lab Sample ID:

Matrix

AA51247

Water



Concentrationms/L

ND104ND2.6ND12

RLme/L

0.500.500.500.100.100.10

Qualifier

J


•Bf



mg/LRL


0.59NDND

0.020.030.03

Page 4 of 15

US UIN VIKUNMbN 1AL PROTECTION AGENCYNEW ENGLAND LABORATORY



Client Sample ID:

Date of Col lection:

IP-185NB-HALLS-01D


Matrix

AA51248

Water



Concentrationme/L

ND104ND2.6ND12

RLme/L

0.500.100.500.100.100.10

Qualifier

J




mg/LRL


0.59NDND

0.020.030.03

Page 5 of 15




Client Sample ID:

Date of Collection:

IP-I85NB-RROI


Matrix

AA51249

Water



Concentrationmg/L

ND105

0.607.2

0.2161

RLme/L

0.500.100.500.100.100.10

Qualifier

J

J




mg/LRL


1.60.06ND

0.020.030.03

Page 6 of 15

tlN V 1KUINMK1N 1 AL fKU 1 CL. 11<J1N A

NEW ENGLAND LABORATORY



Client Sample ID:

Date of Collection:

IP-I85NB-RR01D


Matrix

AA51250

Water



Concentrationmg/L

ND105ND7.2

0.2261

RLme/L

0.500.100.500.100.100.10

Qualifier

J

J




mg/LRL


1.60.07ND

0.020.030.03

Page 7 of 15



Ion Chromatography Anions ,

Client Sample ID:

Date of Collection:

IP-LANDFILL-LFOI

in 1/2005Lab Sample ID:

Matrix

AA51251I

Water



Concentrationmg/L

ND130ND2.70.24

38

RLme/L

0.500.100.500.100.100.10

Qualifier

J




mg/LRL


0.610.07ND

0.020.030.03

Page 8 of 15




Client Sample ID:

Date of Collection:

IP-LANDFILL-LF02


Matrix

AA51252

Water



Concentrationme/L

ND131ND4.00.39

39

RLme/L

0.500.100.500.100.100.10

Qualifier

J




mg/LRL


0.900.12ND

0.020.030.03

Page 9 of 15

••*




Client Sample ID:

Date of Collection:

IP-LANDFILL-RR02


Matrix

AA51253

Water



Concentrationme/LND112

0.605.6

0.1858

RLme/L

0.500.100.500.100.100.10

Qualifier

J

J




me/LRL

QualifierNitrate as NitrogenNitrite as Nitrogeno-Phosphate as Phosphorus

1.30.05ND

0.020.030.03

Page 10 of 15




Client Sample ID:

Date of Collection:

IP-RR03


Matrix

AA51254

Water



Concentrationms/L

ND86

1.14.1ND85

RLme/L

0.500.100.500.10

, 0.100.10

Qualifier

J

J




mg/LRL


0.93NDND

0.020.030.03

Page 11 of 15




Client Sample ID:

Date of Collection:

IP-RR04

7ih 1/2005Lab Sample ID:

Matrix

AA51255*

Water



Concentrationme/L

ND92

ND3.0ND24

RLme/L0.500.100.500.100.100.10

Qualifier

J




mg/LRL

mg/L Qualifier

Nitrate as NitrogenNitrite as Nitrogeno-Phosphate as Phosphorus

0.68NDND

0.020.030.03

Page 12 of 15

US ENVIRONMENTAL PKUTbCTlUN AUtlNCtNEW ENGLAND LABORATORY



Client Sample ID:

Date of Collection:

IP-H ALLS-22M APLE-01


Matrix

AA51256

Water



Concentrationme/L

ND108ND2.9ND12

RLmE/L

0.500.100.500.100.100.10

Qualifier

J




mg/LRL


0.65NDND

0.020.030.03

Page 13 of 15




Client Sample ID:

Date of Collection:

IP-HALLS-20THIRD-01

7^11/2005Lab Sample ID: AA51257

Matrix Water



Concentrationmg/L

ND105ND2.2ND11

RLmfi/L

0.500.100.500.100.100.10

Qualifier

J



ConcentrationCAS Number Parameter

RLmg/L Qualifier

Nitrate as NitrogenNitrite as Nitrogeno-Phosphate as Phosphorus

0.50NDND

0.020.030.03

Page 14 of 15

US ENVIRONMENTAL PROTECTION AUtlNCYNEW ENGLAND LABORATORY


Laboratory Blank

Client Sample ID: N/A

Date of Collection: N/ALab Sample ID:

Matrix

N/A

Water



mg/LRL

mg/L QualifierBromideChlorideFluorideNitrateNitriteSulfate

NDNDNDNDNDND

0.500.100.500.100.100.10

Comments:

Page 15 of 15


MATRIX SPIKE (MS) RESULTS


**

COMPOUND

Sample ID: AA51247

BromideChlorideFluorideNitrateNitriteSulfate

5ampleID: AA51249


SPIKEADDED

mg/L

51.5155

7.5

51.5155

7.5

SAMPLECONCENTRATION

mg/L

ND104ND2.6ND12

ND1050.67.2

0.2161

MS MSCONCENTRATION %

, mg/L REC

5.2991.07.76.119

5.4too1.7125.764

104R100105122101

108R113103110R

QCLIMITS(% REC)

80-80-80-80-80-80-

80-80-80-80-80-80-

120120120120120120

120120120120120120

OC Page 1 of 3


LABORATORY DUPLICATE RESULTS


COMPOUND

SAMPLERESULT

mg/L

SAMPLE DUPLICATERESULT

mg/L

PRECISIONRPD

%

QCLIMITSRPD (%)

Sample ID: AA51244


Sample ID: AA51254


Comments:

ND40

ND5.9

0.1524

ND861.14.1ND85

ND.40ND5.9

0.1624

ND881.24.1ND85

ND0.0ND0.06.50.0

ND2.38.70.0ND0.0

202020202020

202020202020

OC Page 2 of 3


Laboratory Fortified Blank (LFB) Results


COMPOUND


rLFB AMOUNT

SPIKED

mg/L

51.5155

7.5

LFBRESULT

mg/L5.01.4

0.905.14.87.7

LFBRECOVERY

%

100939010296103

QCLIMITS

%

90-11090- 11090-11090-11090-11090-110

* Samples in Batch: AA51244, AA51245, AA51246, AA51247, AA51248, AA51249, AA51250, AA51251,AA51252, AA51253, AA51254, AA51255, AA51256, AA51257

OC Page 3 of 3

United States Environmental Protection AgencyOffice of Environmental Measurement & Evaluation

Re#!Tn i^Ne" i£glJd 11 Technology DriveNorth Chelmsford, MA 01863-2431

Laboratory Report

July 26, 2005

Joseph LeMay - HBO

US EPA New England Region 1One Congress Street

Boston, MA 02114-2023


Project: Industri-Plex - Woburn, MAAnalysis: Metals in Soil Medium Level by ICPEPA Chemist: MikeDowling'

Analytical Procedure:

All samples were received and logged in by the laboratory according to the USEPA New EnglandLaboratory SOP for Sample Log-in.

Samples were prepared following the EPA Region I SOP, INGMETALSPREP5.SOP.

Samples were analyzed following the EPA Region I SOP, EIASOP-INGICP6.

Samples were analyzed by inductively coupled plasma - atomic emission spectrometry using pneumatic nebulization.Preparation and analysis SOP's are based on "Test Methods for Evaluating Solid Waste, Physical/Chemical Methods,SW-846, 3rd Edition, Revision 2, Final Update III, Methods 3050B and 6010B," respectively.

Date Samples Received by the Laboratory: 7/12/05

Results relate only to the items tested or to the samples as received by the Laboratory. This analytical report shall notbe reproduced except in full, without written approval of the laboratory.

If you have any questions, please call me at 617-918-8602.

Sincerely,

Peter Philbrook t£- ,l£ R* > Z ?-Chemistry Laboratory Services Coordinator

Qualifiers:

RL Reporting limitND Not Detected above reporting limitNA Not ApplicableNC Not calculated since analyte concentration is NDJl Estimated value due to MS recovery outside accceptance criteriaJ2 Estimated value due to LFB result outside acceptance criteriaJ3 Estimated value due to RPD result outside acceptance criteriaJ4 Estimated value due to LCS result outside acceptance criteriaJ5 Estimated value due to interference check recovery outside accceptance criteriaB Analyte is associated with the lab blank or trip blank contamination. Values are

qualified when the observed concentration of the contamination in the sampleextract is less than 10 times the concentration in the blank.

R No recovery was calculated since the analyte concentration is greater than four timesthe spike level.

Comments:

The samples were prepared and analyzed by ESAT contractors.

Sample results are in mg/Kg dry wt. units.

mil



Metals in Soil Medium Level by ICP

Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis: '

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-2

7440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-01

7/12/2005

7/22/05

7/25/05

N/A

Parameter

AluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSelenium

SilverSodiumThalliumVanadiumZinc

Concentrationmg/Ke4600NDND56

NDND2300

131120

570069

83016009.5NDNDNDNDND

1453

Lab Sample ID:

Matrix

Final Volume:

Digestate Dilution:

PH:

RLme/Ke

209.8202.90.982.9202.92.92.99.89.8202.05.93909.82.9200202.92.9

AA51321

Soil/Sedin

50 mL

1

N/A

Qualifier

Comments:

II

Page 1 of 15




Client Sample ID:

Date of Collection:

Date of Digestion: ,

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-02

7/12/2005

7/22/05

7X25/05

N/A

Parameter



Concentrationme/Ke9100NDND48

NDND

800021

4.729

130001409009411

NDNDNDNDND3679

Lab Sample ID: AA51322

Matrix Soil/Sedin

Final Volume: 50 mL

Digestate Dilution: 1

pH: N/A

RLme/Ke Qualifier

3015304.51.54.5304.54.54.51515303.08.9600154.5300304.54.5

Comments:

Page 2 of 15




Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-4

7440-23-57440-28-07440-62-27440-66-6

, RC-03

7/12/2005

7/22/05

7/25/05

N/A

Parameter

AluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Concentrationme/Kg

9000NDND48

NDND

370026

5.079

200002406903311

NDNDNDNDND4857

Lab Sample ID: '

Matrix

Final Volume:

Digestate Dilution:

pH:

RLme/Ke

3216324.81.64.8324.84.84.81616323.29.7640164.8320324.84.8

AA51323

Soil/Sediment

50 mL1

N/A

Qualifier

Comments:

Page 3 of 15




*»»

Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-2

I

7440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-4

7440-23-57440-28-07440-62-27440-66-6

RC-04

7/12/2005

7/22/05

7/25/05

N/A

ParameterAluminum

AntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickel

. PotassiumSeleniumSilver

SodiumThalliumVanadiumZinc

Concentrationme/Kg3800NDND40

NDND4800

17ND22

780025037024

NDNDNDND640ND

2445

Lab Sample ID:

Matrix

Final Volume:

Digestate Dilution:

pH:

RLms/Ke

3216324.81.64.8324.84.84.81616323.29.6640164.8320324.84.8

AA51324

Soil/Sediment

50 mL

1

N/A

Qualifier

Comments:

Page 4 of 15




Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

'

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-05

7/12/2005

7/22/05

7/25/05

N/A

Parameter


Concentrationms/Kg

8300NDND37

NDND

940022

3.921

770037062023

13490NDNDNDND3741


Matrix Soil/Sediir

Final Volume: 50 mL


pH: N/A

RLme/Kg Qualifier

2412243.61.23.6243.63.63.61212242.47.2480123.6240243.63.6

Comments:

Page 5 of 15

I IUS ENVIRONMENTAL PROTECTION AGENCY




Client Sample ID:

Date of Collection:

Date of Digestion: •

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-06

7/12/2005

7/22/05

7/25/05

N/A

Parameter



NDND72017

ND16

4300280150936.2NDNDNDNDND

2823

Lab Sample ID:

Matrix

Final Volume:

Digestate Dilution:

pH:

RLme/Kg

2010203.11.03.1203.13.13.11010202.06.1410103.1200203.13.1

AA51326

Soil/Sediment

50 mL

1

N/A

Qualifier

Comments:

Page 6 of 15




Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-2

7440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

,1 RC-07

7/12/2005

. 7/22/05

7/25/05

N/A

Parameter


Concentrationmg/Ke2900NDND13

NDND98

3.7ND4.0

29005269

3.8NDNDNDNDNDND9.S5.8


Matrix Soil/Sedirr

Final Volume: 50 mL


pH: N/A

RLmff/Ke Qualifier

2211223.3 .1.13.3223.33.33.31111222.26.6440113.3220223.33.3

Comments:

Page 7 of 15

lit

«l




Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-08

7/12/2005

• 7/22/05

7/25/05

N/A

ParameterAluminumAntimony

, ArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

Concentrationme/Ke5400NDND

73NDND6000

127.621

6400200

10003711

530NDNDNDND1864

Lab Sample ID:

Matrix

Final Volume:

Digestate Dilution:

PH:

RLme/Ke

2613263.91.33.9263.93.93.91313262.67.9520133.9260263.93.9

AA51328

Soil/Sediment50 ml.

1

N/A

Qualifier

Comments:

Page 8 of 15




Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

i! RC-10

7/12/2005

, 7/22/05

7/25/05

N/A

Parameter



Concentrationmg/Kg

13000NDND

17NDND44016

4.617

730019069024

7.2NDNDNDNDND4033

Lab Sample ID: AA5 1 329

Matrix Soil/Sedirr

Final Volume: 50 mL


pH: N/A

RLme/Kg Qualifier

2311233.4 .1.13.4233.43.43.41111232.36.846011'3.4230403.43.4

Comments: The reporting limit for thallium was raised due to matrix interference.

Page 9 of 15

dim-ENVIRONMENTAL PROTECTION AGENCY




tip

Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-9

7440-7Q-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-11

, 7/12/2005

7/22/05

7/25/05

N/A

Parameter


Concentrationme/Kg2200

12ND7.0NDND1308.4ND11

360016085

6.4NDNDNDNDNDND2817

Lab Sample ED:

Matrix

Final Volume:

Digestate Dilution:

PH:

RLme/Kg

209.920 .3.0

0.993.0203.03.03.09.99.9202.05.94009.93.0200203.03.0

AA51330

Soil/Sedin

50 mL

1

N/A

Qualifier

Comments:

Page 10 of 15



Metals in Soil Medium Level by TCP

Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-12

7/12/2005

7/22/05

7/25/05

N/A

ParameterAluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc


NDND

2700182126

1700055

310079014

520NDNDNDND2484

Lab Sample ID:

Matrix

Final Volume:

Digestate Dilution:

pH:

RLms/Kff

199.7192.90.972.9192.92.92.99.79.7191.95.83809.72.9190402.92.9

AA51331

Soil/Sediment

50 mL

1

N/A

Qualifier

Comments: The reporting limit for thallium was raised due to matrix interference.

Page 11 of 15

l i tUS ENVIRONMENTAL PROTECTION AGENCY




Client Sample ID:

Date of Collection:

Date of Digestion: '

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-4

7440-23-57440-28-07440-62-27440-66-6

RC-08D

7/12/2005

7/22/05

7/25/05

N/A

Parameter

AluminumAntimonyArsenicBariumBerylliumCadmiumCalciumChromium

CobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSeleniumSilver

SodiumThalliumVanadiumZinc

Concentrationme/Kfi4900NDND78

NDND54009.47.520

66001706003811

540NDNDNDND1667

Lab Sample ID:

Matrix

Final Volume:

Digestate Dilution:

PH:

RLme/Kg

209.8202.9

0.982.9202.92.92.99.89.8202.05.93909.82.9200202.92.9

AA51332

Soil/Sediment

50 mL1

N/A

Qualifier

Comments:

Page 12 of 15




Client Sample ID: ( RC-09D

Date of Collection: 7/12/2005

Date of Digestion: 7/22/05


Volume Digested: N/A

Lab Sample ID: ' AA51333

Matrix Soil/Sediment

Final Volume: 50 mL


pH: N/A

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-7

7440-43-97440-70-27440-47-37440-4'8-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

Parameter

AluminumAntimonyArsenic

• BariumBerylliumCadmiumCalciumChromiumCobaltCopperIronLeadMagnesiumManganeseNickelPotassiumSelenium

SilverSodiumThalliumVanadium

Zinc


NDND

710016

3.724

840028048050

7.8NDNDNDNDND2673

RLme/Ke Qualifier

2010203.01.03.0203.03.03.01010202.06.0400103.0200203.03.0

Comments:

Page 13 of 15




Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis:

Volume Digested:

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-7Q-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

RC-09

, 7/12/2005

7/22/05

7/25/05

N/A

Parameter


•


NDND5400

12ND

19670024036033

6.6NDNDNDNDND2156

Lab Sample ED:

Matrix

Final Volume:

Digestate Dilution:

PH:

RLme/Ke

2010203.01.03.0203.03.03.01010202.06.0400103.0200203.03.0

AA51334

Soil/Sedin

50 mL

1

N/A

Qualifier

Comments:

Page 14 of 15


Industri-Pler - Woburn, MA

Laboratory Reagent Blank

Client Sample ID:

Date of Collection:

Date of Digestion:

Date of Analysis: ,

Volume Digested:

•

CAS Number

7429-90-57440-36-07440-38-27440-39-37440-41-77440-43-97440-70-27440-47-37440-48-47440-50-87439-89-67439-92-17439-95-47439-96-57440-02-07440-09-77782-49-27440-22-47440-23-57440-28-07440-62-27440-66-6

N/A

N/A7/22/05

7/25/05

50 mL

Parameter


ConcentrationUE/L

ND' ND

NDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDNDND

Lab Sample ID:

.Matrix

Final Volume:

Digestate Dilution:

PH:

RLug/L200100200301030

2003030301001002002060

400010030

20002003030

N/A

Water

50 mL

1

N/A

Qualifier

Comments:

Page 15 of 15

Comments:


METALS MATRIX SPIKE (MS) RESULTS

Industri-Plex - Wobum, MA

Sample ID: AA51324

mPARAMETER

AntimonyArsenicBariumBerylliumCadmiumChromiumCobaltCopperLeadManganeseNickelSeleniumSilverThalliumVanadiumZinc

SPIKEADDEDnig/Kg

16116116164.480.516116116116116116116132.2161161161

SAMPLECONCENTRATION

mg/Kg

NDND40NDND17

ND22

25024NDNDNDND2445

MSCONCENTRATION

mg/Kg

13017520764.369.017315618241517815717927.3136182187

MS%

REC

8110910410086979799

1029698

11185859888

QCLIMITS(%REC)

75 - 12575 - 12575 - 12575 - 12575 - 12575 - 12575 - 12575 - 12575 - 12575 - 12575 - 12575-12575 - 12575 - 12575 - 12575-125

OCPage 1 of 4


Laboratory Duplicate Results


Sample ID: AA51331

PARAMETER


SAMPLERESULTmg/Kg

7400NDND30NDND2700

182126

1700055

310079014

520NDNDNDND2484

SAMPLE DUPLICATERESULTmg/Kg

8400NDND35NDND

3100202531

1900062

350095016

530NDNDNDND2796

PRECISIONRPD

%

13NCNC15

NCNC1411171811121218132

NCNCNCNC1213

QCLIMITS

30303030303030303030303030303030303030303030

Comments:

OC Page 2 of 4


Laboratory Fortified Blank (LFB) Results


PARAMETER


LFB AMOUNTSPIKED

ug/L

1000100010001000400500

10000100010001000100010001000010001000100001000200

10000100010001000

LFBRESULT

ug/L

10009609701000400450

960099098010009909409700980980

10000990180

110001000990930

LFBRECOVERY

%

1009697

10010090969998

1009994979898

10099901101009993

QCLIMITS

%

85-11585-11585-11585-115,85-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-11585-115

Comments:

Samples in Batch: AA51321, AA51322, AA51323, AA51324, AA51325, AA51326,AA51327, AA51328, AA51329, AA51330, AA51331, AA51332,AA51333.AA51334

QCPage 3 of 4

U S tJN V 1KUIN JVllilM 1AL fK\J 1 HU 1HJ1N AUE.1N <^ 1


Solid Laboratory Control Sample (LCS) Results

Industri-Plex - Wobura, MA

1

PARAMETER


LCSRESULTS

mg/Kg

538057.414114871.1234

331096.046.971.4

1010075.9188025275.3192086.9132403113103131

CONTROLLIMITS

mg/Kg

395010.0108112

54.8201

268075.036.251.2

-9710-168-164-169-78.8-291-4180-116-53.1-81.4

6920-1720059.81560197

59.3140060.777.822190.780.0107

-88.6- 2520-307-86.1-2540-100-176-579-149-134-166

Comments:

OC Page 4 of 4

ft 1 I 1 • I t I * t ft I J I J I

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IndustriPlex Water and Soil Sampling Locations, July 11-12, 2005

Dry Swale into Pond, with rip-rap bottom. No flow/no sample taken. Facing South.

IP-COMB-01. Facing West

IP-CULV-01 Facing West

IP-OUTLET-01 Facing West

*r • *-

?• :.-,Xt*« V • • . V

IP-185NB-HALLSO1. Facing West (upstream)

IP-185NB-RRO1. Facing North (upstream)

IP-LANDFILL-RR-02. Facing South (downstream)

7. % .-,1,'-'/?'

ifs&M*

:/:? V-'

IP-LANDFILL-LF-01. Facing West (upstream)

IP-LANDFILL-LF-02. Facing West (upstream)

IP-LANDFILL-LF-02. Close-up of sheen.

IP-RR-03. Facing South (downstream)

IP-RR-04. Facing South (upstream)

IP-HALLS-22MAPLE-01. North side of brook, facing South across brook. Flow fromright to left.

IP-RC-01

IP-RC-03

IP-RC-04

IP-RC-05

•&&&

IP-RC-06

ll

IP-RC-07

IP-RC-08

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Soil and Surface Water Sampling for the Industri-Plex (OU-2)Superfund Site

Woburn, Massachusetts

Collection of Surface Soil Samples for Metals Analysis and Surface Water Samples for Ammonia andNitrate Analysis.

Quality Assurance Project Plan (QAPP)

July, 2005

U.S. Environmental Protection Agency1 EPA New England

Office of Environmental Measurement & EvaluationInvestigations & Analysis Unit

Project Officer: Joseph F. LeMay, Remedial Project Manager

Project Officer Signature:

Office of Quality Assurance Acceptance:

Signature:

Date:

1. Project Name: Soil and Surface Water Sampling for the Industri-Plex and Wells G&HSuperfund Sites

m • • '2. Site No: 0107 - (Industri-Plex OU-2)

"* 3. Project Requested By: Joseph F. LeMay (OSRR)

4. Date of Request: July 7, 2005 (informal request: 6/29/05)

5. Date of Project Initiation: June 30, 2005

ni6. Project Officer: Joseph F. LeMay (OSRR)

4g 7. Quality Assurance Officer: See Performance Coordinator

8. Project Description:.Collection of surface soil samples from various locations for metals analysisnil and surface water samples from various locations for ammonia and nitrate analysis.

A. Objective and Scope Statement:m

Please note the 2005 sampling requested by the site RPM is a continuation of a previously approvedEIA sampling projects, (QAPPs dated July 2002 and February 2004).

mUpdates:The purpose of the field study is for EPA's Investigations & Analysis Unit (EIA) to gather surface soil

"* and surface water samples from designated locations for analysis in support of an evaluation by theOffice of Site Remediation and Restoration (OSRR) of the Industri-Plex Superfund Site, Operable Unit2 (OU-2). The Request for Sampling and Analysis Assistance is for 15 surface water samples (2/3depth below surface) along New Boston Street Drainway from southern Wilmington to Halls Brookand along Halls Brook west of Halls Brook Holding Area Pond/ RR tracks and for 15 soil samples (0" -6") along a foot path on the eastern side of Wells G&H Superfund Site Wetlands (between the formerproduction wells G and H). See attached figures illustrating the proposed sampling locations. Thelocations may be modified in the field by the Project Officer. Sampling locations will be identified and

— flagged in the field, located by GPS, and also digitally photographed.

The soil samples will be analyzed for total metals at the EPA New England Regional Laboratory^ (NERL) in North Chelmsford, MA. The surface water samples will be analyzed for nitrates at NERL

and will be analyzed for ammonia by Alpha Analytical.

m B. Data Usage

Data from the sample analysis will be used by the EPA for risk screening and/or enforcement purposes.•

C. Monitoring Event Design:

Mi

The Project Officer will provide EPA-EIA with GIS or areal maps of the major sampling areas, alongwith the proposed sampling locations in each area labeled on the map. Alternatively, the ProjectOfficer can meet with the Sampling Leader at the site one to two weeks prior to the sampling event andcan flag the sampling locations.

i!The Project Officer has specified that approximately 15 surface soil samples be collected to a depth of6" at approximately 50 ft intervals along a foot path on the eastern side of Wells G&H Superfund SiteWetlands (between the former production wells G and H). The Project Officer has specified that up to15 surface water samples be collected from the New Boston Street Drainway from southernWilmington to Halls Brook and along Halls Brook west of Halls Brook Holding Area Pond/ RR tracks.Ambient field measurements of pH, dissolved oxygen (D.O.) and temperature will be recorded for

each surface water sample collected.

D. Monitoring Parameters and Frequency of Collection:

Parameter

Metals

i

Ammonia

Nitrate

Number ofSamples

15QC sample

15QC sample

15QC sample

SampleMatrix

Soil

Aqueous

Aqueous

Analytical MethodReference

EPA 200.7EIASOP-INGICP6

S.M. 4500

EPA 300.0EIASOP-

INGDXIC8

SampleContainer

8 oz. clearwide

mouth

250mlplastic

50mlplastic orglass

SamplePreservation

Ice

H2SO4 pH <2Ice

Ice

HoldingTime

6mos.

28 days

48hrs

9. Schedule of Tasks and Products:

Date

July 7, 2005

July 8, 2005

July 11-July 13, 2005

Daily (during sampling period)

July, 2005

August, 2005

August, 2005

Activity

Request OEME lab support

Sampling team field reconnaissance

Conduct field sampling

Deliver samples to Chelmsford laboratory

Laboratory analyses

Data to Sampling Leader

Data to Project Officer

10. Project Organization and Responsibility:The following is a list of key project personnel and their responsibilities:

Responsibility

Project Manager

Sampling Leader

Sampling QC

Laboratory Analysis

Laboratory QC

Performance Auditing

Overall PerformanceCoordination

Contact

Joseph LeMay (OSRR)

Rich Fisher (EIA)

Rich Fisher (EIA)

Peter Philbrook (EIA)

Peter Philbrook (EIA)

QA Office (EQA)

Rich Fisher (EIA)

11. Data Quality Requirements and Assessments

Accuracy and Precision values are for method internal QA/QC. The values are to be considered asgoals because some specific compounds are know outside these goals.

Parameter

Metals

Ammonia

Nitrate

Sample Matrix

Soil

Water

Water

Quant. Limit(mg/KG or mg/U

As, Cr, and Pb:(See Note below)

**

**

Accuracy (%)

75- 125%

75 - 125%

75- 125%

Precision (%)

20%

35%

35%

Field Precision

50%

50%

50%

*Samples that are above the calibration range, will be diluted and re-analyzed to within an acceptable calibration range.** See referenced SOP's for specific analyte reporting limits.

***Accuracy determined with matrix spike (MS) samples and precision determined with eithermatrix spike duplicate (MSD) samples or laboratory fortified blanks.

12. Data Representativeness:

In general the data obtained from the sample analysis will be used for risk screening and/orenforcement purposes. At least 85% of data must be valid. If data are incomplete, the project managerand OEME personnel will determine if additional sampling is needed.

13. Sampling Procedures:Samples will be collected in accordance with EPA Investigations & Analyses SOPs.

14. Sample Custody Procedures:

Samples will be handled in accordance with EPA Investigations & Analyses SOP for Chain ofCustody. Each sample will be given a unique number and recorded in the field logbook and/or sitemap.

15. Calibration Procedures and Preventative Maintenance:Equipment to be directly used during the field sampling event does not require calibration orpreventative maintenance. EPA-NE lab procedures and preventive maintenance are documented in thelab QA plan.

16. Documentation, Data Reduction, and Reporting:

All information will be recorded on the Sampling Team's field data sheets.In addition, the completion of chain of custody (COC) forms, labels, etc. is required for all samples.Laboratory documentation is maintained in their respective QA plans.

17. Data Validation:

The ammonia ,nitrate, and metals data will be reviewed as specified in the NERL QAP including areview by a peer chemist and by the Chemistry Team Leader.

18. Performance and Systems Audits:May be performed by the QA Office, as requesting by the Project Officer.

19. Corrective Action:Any corrective action will be determined by the sampling operations leader and project manager, ifnecessary, and documented in a field data sheet and/or field logbook.

20. Reports will be sent to: Joseph F. LeMay, RPMEPA Region 1 - New EnglandIndustri-Plex (OU-2) Superfund Sites

.1

I

41

APPENDIX C

SUPPORTING INFORMATION FOR RISK EVALUATION

m

C.1 - HUMAN HEALTH RISK EVALUATION TABLES

TABLE 1

SELECTION OF EXPOSURE PATHWAYS

INDUSTRI-PLEX SUPERFUND SITE

Scenario

Tlmeframe

Current/Future

Future

Medium

Surface Water

Soli

Groundwaler

Exposure

Medium

Surface Water

Surface Sol

Groundwater

Exposure

Point

HBHAPond

RCArea

(Wells G&HWetland)

Industrl-plexSile/HBHA Pond

Area

Receptor

Population

Recreational User

Recreational Uaer

Car Wash Worker

Receptor

AflB

Teenager

Adult/Young Chid

Adult

Exposure

Route

Dermal

Inhalation

Ingestlon

Ingestlon

Dermal

Inhalation

Ingestlon

Dermal

Inhalation

Type of

Analysis

dual

None

None

Quant

Quant

None

None

None

Quant

Rationale for Selection or Exclusion

of Exposure Pathway

Teens may use this area lor recreation (wading) with low frequency.

Inhalation exposures are expected to be negligible.

Since surface waters are shallow, wading but not swimming Is expected, and -Ingeslton Is unlikely.

Recreational users may be exposed to contaminants In soil along the recreattortral.

Dermal contact with contaminated soils may occur.

Inhalation exposures are expected to be negligible.

Direct contact with groundwater Is not assumed.

Direct contact with groundwater Is not assumed.

Workers may be exposed to volatile contaminants Impacting air during use ofaroundwater In a hot water car wash.

p«o. 1 on TlM>1.«ttrr>M°11

TABLE 2.1OCCURRENCE, DISTRIBUTION AND SELECTION OF CHEMICALS OF POTENTIAL CONCERN


Scenario Tlmeframe: Future IIMedium: Groundwater used In a Car WashExposure Medium: Indoor Air I

Exposure

Poinl

Northern Sludy Area (a;

CAS

Number

7664-41-7

Chemical

Ammonia

Minimum

Concentration

(Qualifier)

(1)

N/A

Maximum

Concentration

(Qualifier)

(1) "

319607

Units

ug'rrC

Location

at Maximum

Concomralion

N/A

Oetecllon

Frequency

N/A

Range of

Detection

Limits

N/A

Concentration

Used lor

Screening

|2)

319697

Background

Value

(3)

N/A

Screening

Tox idly Value

(N/C)

W

10 N

Potential

ARAR/TBC

Value

N/A

Potential

ARAR/TBC

Source

N/A

COPC

Flag

(Y/N)

Y

Rationale for

Selection or

Deletion

(5)

ASL

(a) Reler lo Appendix C.2 lor data set utilized.

(1) Groundwaler contributions lo Indoor air have been presented In (tie Maximum Concentration field.Refer lo Appendix C.3 for modal results.

(2) Maximum concentration used lor screening.(3) Rofor lo supporting Information for background discussion.(4) USEPA Region 9 PRQs for ambenl air (adjusted to an hazard quotient« 0.1 for noncardnogens). October 2004.(5) Rationale Codes: Selection Reason: Above Screening Levels (ASL)

No Screening Level (NSL)Deletion Reason: rtoToxtalty Information (NTX)

Essential Nutrient (NUT)Below Screening Level (BSL)

Definitions: COPC • Clwmlcal of Potential ConcernARAR/TBC « Applicable or Relevant and Appropriate Requirement/To Be ConsideredPRG > Preliminary Remedial GoalN/A • Nol Applicable or Not AvailableJ« Estimated ValueC • CarcinogenicN « Non-CarcinogenicMCI» Maximum Contaminant Level


INDUSTRI-PLEX SUPERFUNO SITE

Scenario Timeframo: Current/FutureMedium: Surface WaferExposure Medium: Surface Water

Exposure

Point

HBHA Pond

CAS

Number

7664-41-7

Chemical

Ammonia

Minimum

Concentration

(Qualifier)

(1)

100

Maximum

Concentration

(Qualifier)

(D

17200

Units

ug/L

Location

ol Maximum

Concentration

HBHA Pond Outlet

(9/16/2001)

Detection

Frequency

31/31

Range of

Detection

Limits

N/A

Concentration

Used for

Screening

(2)

17200

Background

Value

(3)

N/A

Screening

Toxicily Value

(NIC)

(4)

30000

Potential

ARAR/TBC

Value

N/A

Potential

ARAR/TBC

Source

N/A

COPC

Flag

(Y/N)

N

Rationale for

Selection or

Deletion

(5)

BSL

(a) Refer to Appendix C.2 for data set.(1) Minimum/maximum delected concentration.(2) Maximum concentralion used for screenlno.(3) Refer to supporting information for background discussion.(4) Given as a concentralion in drinking water, specifically related to taste threshold. Safe concentration may be higher (EPA. 2004).(5) Rationale Codes: Selection Reason: Above Screening Levels (ASL)

Deletion Reason: No Toxicily Information (NTX)Essential Nutrient (NUT)Below Screening Level (BSL)

EPA, 2004 .2004 Drinking Water Standards and Health Advisory

Definitions: COPC * Chemical of Potential ConcernARAR/TBC * Applicable or Relevant and Appropriate Requirement/To Be ConsideredPRO « Preliminary Remedial GoalN/A • Not Applicable or Not AvailableJ > Estimated ValueC * CarcinogenicN * Non-CarcinogenicAWQC > Ambient Water Quality Criterion for Human Health (20020)



Scenario Timeframe: Future

Medium: SoilExposure Medium: Surface Soil

Exposure

Poini

RCsoil

CAS

Number

7429-90-5

7440-36-0

7440-39-3

7440-70-2

7440-47-3

7440-48-4

7440-50-8

7439-89-6

7439-92-1

7439-95-4

7439-96-5

7440-02-0

7440-09-7

7440-23-5

7440-02-2

7440-68-8

Chemical

Aluminum

Antimony

Barium

Calcium

Chromium

Cobalt

Copper

Iron

Lead

Magnesium

Manganese

Nickel

Potassium

Sodium

Vanadium

Zinc

"

Minimum

Concentration

(Qualifier)

0)

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Maximum

Concentration

(Qualifier)

(D

13000

12

75.5

9400

26

21

79

20000

370

3100

1600

14

535

040

48

84

Units

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

mg/Kg

location

of Maximum

Concentration

RC-10

RC-11

RC-08

RC-05

RC-03

RC-12

RC-03

RC-03

RC-05

RC-12

RC-01

RC-12

RC-09

RC-04

RC-03

RC-12

Detection

Frequency

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

- Range of

Detection

Limits

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Concentration

Used lor

Screening

(2)

13000

12

75.5

9400

26

21

79

20000

370

3100

1600

14

535

640

48

84

Background

Value

(3)

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Screening

Toxitily Value

(N/C)

(4)

7600 N

3.1 N540 NN/A

22 N

90 N

N/A

N/A

400 N

N/A

180 N

160 N

N/A

N/A

7.8 N

2300 N

Potential

ARAR/TBC

Value

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Potential

ARAR/TBC

Source

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

COPC

Rag

(Y/N)

V

Y

N

N

Y

N

N

N

N

N

Y

N

N

N

Y

N

Rationale lor

Selection or

Deletion

(5)

ASL

ASL

BSL

NUT

ASL

BSL

NTX

NTX

BSL

NUT

ASL

BSL

NUT

NUT

ASL

BSL

(a) Data presented are from soil samples RC-01 through RC-12. Sea Appendix C.2 lor dais set.(1) Minimum/maximum delected concentration.(2) Maximum concentration used for screening.(3) Refer to supporting information Ibf background discussion.(4) USEPA Region 9 PRGs for residential soil (adjusted lo an hazard quotient« 0.1 fornoncerdnogens), October 2004.

PRO for chromium VI used for chromium.

The screening loxlclly value for lead to the residential sol lead guidance level of 400 mg/Kg (USEPA, 1994a).(5) Rationale Codes: Selection Reason: Above Screening Levels (ASL)

Deletion Reason: No Toxldty Information (NTX)Essential Nutrient (NUT)Below Screening Level (BSL)

Definitions: COPC • Chemical of Potential ConcernARAR/TBC • Applicable or Relevant and Appropriate Requirement/To Be ConsideredPRO - Preliminary Remedial GoalN/A > Not Applicable or Not AvailableJ • Estimated ValueC " CarcinogenicN • Non-Carcinogenic

TABLE 3.1 .RME

EXPOSURE POINT CONCENTRATION SUMMARY

REASONABLE MAXIMUM EXPOSURE

INOUSTRI-PLEX SUPERFUND SITE

Scenario Tlmetrame: Future

Medium: Groundwator mod in a Car Wash

Exposure Medium: Indoor Air

Exposure Pdnl

(1)

Northern Study Area

Chemical o(

Polontial Concern

Ammonia

UnHi

N/A

Arithmetic

Mean

NfA

95% UCL

(OiitrlbuUon)

N/A

Maximum

Concentration

(Qualifier)

N/A

Exposure Point Concentration (2)

Value

3.7E«04

Units

uoym1

Statistic

(3)

95HUCL-NP

Rationale

N/A

(1) Refer to Appendix C.2 for data seL(2) Refer to Appendix C.3 for air modeling resulli.(3) Statistics: Maximum Delected Value (Max): 95% UCL of Transformed Data (95% UCL • T); 95% UCL of Normal Data (95tt UCL - N); 95% UCL of Non-parametric Data (95% UCL • NP):

Arithmetic Mean (Mean): These statistics apply to the groundwaler data set prior to air modeling.J • Estimated Concentration EPC • Exposure Point ConcentrationMax * Maximum Detected Concentration RME * Reasonable Maximum ExposureN/A « Not Applicable CT • Central TendencyUCL - Upper Confidence Limit

m *• |T*te WME-Fviitf • CM WMti)

TABLE 3.Z.RME

EXPOSURE POINT CONCENTRATION SUMMARY



Scenario Tlmeframe: Future

Medium: Soil

Exposure Medium: Surface Soil

Exposure Point

<1>

RCSofl

Chemical ot

Polontlal Concern

Aluminum

Antimony

Chromium

Manganese

Vanadium

Unlti

mo/kg

mg/kg

mg/kg

mg/XB

mg/Xg

Arithmetic

Mosn

N/A

N/A

N/A

WA

N/A

95% UCL

(Oislrlbulion)

(2)

N/A

N/A

N/A

N/A

N/A

Maximum

Concentration

(Qualifier)

1.3E»M

1.2E«01

2.6E«01

1.6E<03

4,8E»01

Exposure Point Concentration

Value

I.3E«04

UE«01

2.eE«01

1.6E«03

4.BE*01

Unils

mg/kg

mg/ko

mg/kgmg/kg

mo/kg

Statistic(3)

Max

Max

Max

Max

Max

Rationale

(4)

(a)

(a)

(a)

(a)

(a)

(1) Refer 10 Appendix C.2 (or data set: only COPCi selected on Table 2.3 appear.(2) T • Transformed; N - Normal: NP • Non-paramelric: G - Gamma; <4 • sample size too small to calculate 85% UCL(3) Statistics: Maximum Detected Value (Max): 95% UCL of Transformed Data (95% UCL - T): 85% UCL of Normal Data (95% UCL • N); 95% UCL of Non-parametric Data (95S UCL - NP);

95% UCL of Gamma Distributed Dala (95% UCL - G); Arithmetic Mean (Mean)(4) Rationale:

(a) Due to small sample size (<4), Ihe maximum delected concentration Is used.(b) When IMo maximum delected concentration Is selected as Iho RME EPC, the arithmetic mean concentration 1$ selected as the CT EPC.(c) If the arllnmeUc moan concentration equals or exceeds Ihe maximum detected concentration, Ihe maximum delected concentration b used as Ihe CT EPC.(d) Shapiro-WJk W Test Indicates data are normally distributed.(e) Shapiro-Wilt W Tesl Indicates data we too-normally distributed.(I) Shapko-Wlk W Test Indicates data are neither normally nor tog-normally distributed.(g) 95S UCL exceeds maximum delected concentration. Therefore, maximum concentration used for EPC(h) A-D Tesl and/or K-S Tesl Indicates data are gamma distributed.

J > Estimated ConcentrationMax * Maximum Detected ConcentrationN/A * Not ApplicableUCL » Upper Confidence LimitEPC * Exposure Point ConcentrationRME * Reasonable Maximum ExposureCT-Central Tendency

TABLE 4.1.RME

VALUES USED FOR DAILY INTAKE CALCULATIONS



Scenario Timelrame: Future

Medium: Groundwaler

Exposure Medium: Groundwaler

Exposure Route

Inhalation of

volatile:

Receptor Population

Car Wash Worker

Receptor Ago

Adull

Exposure Point

Northern Study Area

Parameter

Code

CA

ET

EF

ED

CF

AT-C

AT-N

Parameter Definition

Chemical Concentration in Air

Exposure Time

Exposure Frequency

Exposure Duration

Conversion Factor

Averaging Time (Cancer)

Averaging Time (Non-Cancer)

Value

see Table 3s

8

250

25

24

25.550

9.125

Units

uj/m3

hrc/day

days/year

years

hrs/day

days

days

Rationale/

Reference

see Table 3s

USEPA. 1997a

USEPA, 19978

USEPA. 1997a

- -

USEPA. 1989 •

USEPA. 1989

Intake Equation/

Model Name

Chronic Dally Intake (CDI) (ug/m1) «

CAxETxEFxED

ATxCF

TABLE 4.Z.RME

VALUES USED FOR DAILY INTAKE CALCULATIONS


INOUSTRI-PLEX SUPERFUND SITE

Scenario Timeframe: Future

Medium; Soil

Exposure Medium Surface Soil

Exposure Route

tngesllon

Dermal

Receptor Populallon

Recreational User

Recreational User

Receptor Age

Young Child

Young Child

Exposure Point

RCaoil

RCsoll

Parameter

Code

CS

IRFl

EF

ED

BW

AT-C

AT-N

CF

CS

SA

AF

EF

ED

DAF

BW

AT-C

AT-N

CF

Parameter Definition

Chemical Concentration In Soil

ngosllon Rale of Soil

Fraction Ingested

Exposure Frequency

Exposure Duration

Body Weight


Averaging Time (NorvCancer)

Conversion Factor

Chemical Concentration In Soil

Skin Surface Area Available (or Contact

Skin Adherence Factor

Exposure Frequency

Exposure Duration

Dermal Absorption Factor

Body Weight


Averaging Time (Non-Cancer)

Conversion Factor

Value

see Table 3s

200

0.5

78

615

25.550

2.100

0.000001

see Table 3s

2.600

0.2

76

echemical specific

15

25,550

2.180

0.000001

Units

mg/kg

mg/day

uniiless

days/year

years

kgdays

days

kg/mg

mg/kg

cm'

mo/cm'-aay

days/year

years

•• '

kg

days

days

kg/mg

Rationale/Reference

see Table 3s

USEPA. 1994b

Prof. Judgement

assumption

USEPA. 1894b

USEPA. 18846

USEPA, 1889

USEPA. 1888

..

see Table 3s

USEPA. 2004d

USEPA, 20Md

assumption

USEPA, 1884b

••USEPA, 18Mb

USEPA, 1868

USEPA. 1989

••

Intake Equation/Model Name

Chronic Daily Intake (GDI) (mg/ks-day) *

CS » IR x Fl K EF x ED x CFBWxAT

CDI (mg/kg-day) *

CSxSAxAFxEFxEDxDAFxCF

BWxAT

Young child SA term assumes exposure to face, forearms, hands, lower legs, and feet.

Young child AF term Is geometric mean value for children playing In wet toil.

TABLE 5.1

NON-CANCER TOXICITY DATA - ORAL/DERMAL


Chemical

ol Potential

Concern

Aluminum

Anllmony

Chromium (VI)

Manganese (other media)

Vanadium

Chronic/

Subchronlc

Chronic

Chronic

Chronic

Chronic

Chronic

Oral RIO

Value

1E+00

4E-04

3E-03

7E-02

1E-03

Unite

mg/kg-day

mg/kg-day

mg/kg-day

mg/Vg-day

mg/kg-day

Oral Absorption

Efficiency lor Dermal

(1)

0.01

0.1S

0.025

0.04

0.026

Absorbed RID (or Dermal

Value

(2)

1.0E-02

6.0E-05

7.5E-06

2.BE-03

2.8E-05

Units

mg/kg-day

mg/Vg-day

mg/kg-day

mg/kg-day

mg/kg-day

Primary

Target

Organs)

CMS

General Toxlcity

Gl System

CMS

Kidney

Combined

Uncertainty/Modifying

Factors

100

1000

300

3

300

RfD:Target Organs)

Source(s)

STSC

IRIS

IRIS

IRIS

STSC

Date(s)

(MMfDD/YYYY)

01/05/05

01/05/05

01/05/05

01/05/05

01/05/05

(1) Oral absorption efficiencies from RAGS, Part E (USEPA, 2004a).

(2) Calculated as: (oral RID) x (oral to dermal adjustment factor).

(3) RID (or managanese Is based on total allowable Intake (10 mg/day) minus the background

intake (5 mg/day). The remaining Intake (5 mg/day) is divided by 70 kg.

IRIS * Integrated Risk Information System

STSC = Superfund Technical Support Center

8MBUOOSPaggloM

TABLE 5.2

NON-CANCER TOXICITY DATA - INHALATION


Chomical

of Potential

Concern

(1)

Ammonia

Chronic/

Subchronlc

Chronic

Inhalation RIC

Value

1.00E+02

Units

ug/m1

Extrapolated RfD

Value

N/A

Units

N/A

Primary

Target

Organ(s)

Respiratory

Combined

Uncertainly/Modifying

Factors

30

RfC : Target Organ(s)

Source(s)

IRIS

Dale(s)(MM/DD/YYYY)

8/1/2005

IRIS = Integrated Risk Information System

N/A - Not Applicable

TABLE 6.1

CANCER TOXICITY DATA - ORAl/OERMAl


Chemical

ofPolenlial

Concern

Aluminum

Antimony

Chromium (VI)

Manganese (other media)

Vanadium

Oral Cancer Slope Factor

Value

N/A

N/A

N/A

N/A

N/A

Unite

N/A

N/A

N/A

N/A

N/A

Oral Absorption

Efficiency for Dermal

N/A

NM

N/A

N/A

N/A

Absorbed Cancer Slope Factor

for Dermal

Value

N/A

N/A

N/A

N/A

N/A

Unite

N/A

N/A

N/A

N'A

N/A

Weight of Evidence/

Cancer Guideline

Description

N/A

D

D

D

NM

OrafCSF

Soorce(s)

N/A

IRIS

IRIS

IRIS

NM

Date(s)

(MM/DD/YYYY)

N/A

01/05/05

01(05/05

01/05/05

N/A


RME = Reasonable Maximum Exposure

CT « Central Tendency

N/A = Not Applicable

EPA Group:

A - Human carcinogen

B1 - Probable human carcinogen • Indicates that limited human data are available

B2 - Probable human carcinogen - Indicates sufficient evidence In animals and

Inadequate or no evidence In humans

C - Possible human carcinogen

D - Not classifiable aa a human carcinogen (by the oral route)

E - Evidence of noncardnogonlclty

P*9t 1 ol 1

TABLE 6.2

CANCER TOXICITY DATA - INHALATION


Chemical

of Potenlial

Concern

Ammonia

Unit Risk

Value

N/A

Units

N/A

Inhalation Cancer Slope Factor

Value

N/A

Units

N/A

Weight of Evidence/

Cancer Guideline

Description

D

Unit Risk : Inhalation CSF

Source(s)

IRIS

Date(s)(MM/DD/YYYY)

08/01/05

N/A = Not Applicable


EPA Group:

A - Human carcinogen

B1 - Probable human carcinogen - indicates that limited human data are available

B2 - Probable human carcinogen - Indicates sufficient evidence In animals and

inadequate or no evidence In humans

C - Possible human carcinogen

D • Not classifiable as a human carcinogen (by the oral route)

E - Evidence of noncardnogenldty

UBl91.xls [TabK 6.2)

TABLE 7.1.RME

CALCULATION OF CHEMICAL CANCER RISKS AND NON-CANCER HAZARDS


INOUSTRI-PIi F.X SUPERFUND SITE

Scenario Tlmotrome: Future

Receptor Population: Car Wash Worker

Receptor Ago: Adull

Medium

Groundwoter

Exposure Medium

Indoor Air

-

Exposure Point

Northern Study Area

Exposure Route

Inhalation

Exp. Route Total

Exposure Point Total

Chemical of

Potential Concern

Ammonia

EPC

Value

4E«04

Unite

ugAn3

Exposure Medium Total

Medium Total

Concor Risk Calculations

Intake/Exposure Concentration

Value

3.0E«03

Unlit

uo/mj

CSF/Unll Risk

Value

N'A

UnlU

N'A

Total of Receptor Risks Acrest All Modlo

Cancer Risk

MM

N/A

N'A

N/A

N/A

N/A

Non-Cancer Hazard Calculations

Intake/Exposure Concentrafion

Value

6.5E-03

UnlU

ugmVJ

RID/RfC

Value

"t.OE«02

UnlU

~ ug/m

Total of Rocoplor Hazards Across All Media

Hazard Quotient

B.5E«01

»E»OI

OE-OI

9E-01

9E»01

8E-01

DYHV2005 Page t of 1lables.ils [Table 7.12.RME-fCarWashWorler)

TABLE 7.ZRM6

CALCULATION OF CHEMICAL CANCER RISKS AND NON-CANCER HAZARDS


INOUSTRI.Pt.EX SUPERFUND SITE

Scenario Tlmefreme: Future

Receptor Population: Recreational User

Receptor Age: Young Child

Medium

Soil

Medium Total

Exposure Medium

Surface Soil

_

Exposure Point

RCjoS

Exposure Route

Ingasllon

k

Exp. Roulo Total

Dormal

Exp. Route Total

Exposure Point Tola!

Exposure Medium Tolel

Chemical ol

Potential Concern

Aluminum

Antimony

Chromium (VI)

fonganeie (other modi

Vanadium

EPC

Value

IE«04

1E«0>

3E«01

2E«03

5E.OI

Unltt

rnpAQ

mg/kg

mg/Vg

moAg

mg/kg

Cencer Rlik Calculations

Intake/Exposure Concentrelion

Value

I.OE-03

1.SE-09

3.2E-4U

JOE-04

5.0E-06

Units -

moflB-day

mn/kg^ay

ma/kg<(By

mgAo-day

mg/kg^fny

CSFAJnlt Risk

Value

N/A

N/A

N/A

N/A

N/A

Units

N/A

N/A

N/A

N/A

N/A

Tola! of Recoplor Risks Across All Medlo

Cencer Risk

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

N/A

Non-Concer Hazard Calculations

Intake/Exposure Concentration

Value

1.86-02

1.7E-05

3.7E-OS

2.3E-03

6.8E I5

Units

mg/kg-day

mgflcg-day

mg/kg-day

mg/kg-day

mg/kg-doy

RID/Rfc

Value

1.0E«00

4.0E-04

3.0E-03

7.0E-02

1.0E-OJ

Units

rng/kg-tfay

mg/kg-day

mgrkg^oy

mg/kg-day

mg/kg lay

Total of Receptor Hazards Across AH Media

Hazard Quotient

I.BE-O:4.3E-02

1.2E-02

3.1E-02

0,»E^)2

2E-OI

N/A

2E-01

2E-01

2E-01

2E-OI

avte/2005 Pag> 1 o( 1tobles.xli [Table 3-7.4.RME-(C)

TABLE 10.1.RME

RISK SUMMARY


INDUSTRI-PtEX SUPERFUND SITE

Scenario Tlmolramo: Future

Receptor Population: Cor Wa»h Worker

Receptor Ago: Adult

Medium

aroundwaler

Exposure

Medium

Indoor Air

Exposure

Point

Northern study ATM

Chemical

of Potential

Concern

Ammonia

Chemical Tolal

Radlonucllde Total

Exposure Point ToUl

Exposure Medium Total

Medium Tola!

Receptor Total

Cardnooenlc Risk

Ingostlon

--

..

Inhalation

'

..

Dermal

• -

..

External

(Radiation)

--

..

Exposure

Routes Total

N/A

KM

N/A

N/A

N/A

N'A

Non.CarclnogBfltc Hazard Quotient

Primary

_ Target Organ

ReiplrBlory

Ingested

--

..

Inhalation

66-01

9E«01

Dermal

--

- ..

Exposure

Routes Tolal

9E»01

8E«t)1

9E»Ot

OE-OI

9E-OI

9E«OI

• • » Not Evaluoted

N/A-NotAppHcoble

Total Rlik Across All Media Total Haurd Across All Media |

Total Blood HI'

Total Cardiovascular HI'

Total Developmental HI •

Tolal General Toxlclty HI >

Total Gl System HI •

Total Immvne System HI •

Total Kidney Hi •

Tolal liver HI[•

Total Nervous System HI *

Total Skin HI«

Tolal Respiratory HI'

M/A

C.2 - DATA SETS USED FOR HUMAN HEALTH RISK CALCULATIONS

TABLE 1. GROUND WATER AMMONIA RESULTS

NSAMPLE PARAMETER EPASAMNO LAB_RESULT JQUAJLJ . UNITS

CBI-04-GW-01NS-1 10701

CB2-05-GW-02CB2-05-GW-03RCB2-06-GW-02NSCB3-02-GW-01NSCB3-02-GW-03CB3-03-GW-03CB4-03-GW-03

CB4-04-GW-OINS

CB4-04-GW-02NSCB4-05-GW-03NS

CB5-01-GW-01CB5-02-GW-02

CB5-02-GW-03

CB5-03-GW-03

CB6-03-GW-OI

CB6-Q3-GW-02CB6-03-GW-03CB7-01-GW-01CB7-01-GW-03 i

CB7-02-GW-01

CB7-02-GW-02CB7-03-GW-01

CB7-03-GW-02RCB7-03-GW-03

CB8-01-GW-01-AVG

CB8-01-GW-03

CB8-04-GW-02NS-AVG

CB9-01-GW-01

CB9-01-GW-03

CB9-02-GW-02

CB9-04-GW-01

CB9-05-GW-01

CE3-02-GW-03

CE4-02-GW-01

CE4-03-GW-01NS-072301

CE4-03-GW-03-AVG

CH1-04-GW-04

CH1-04-GW-05RCH2-02-GW-02CH2-02-GW-05

CH2-04-GW-05

CH2-04-GW-06CL2-03-GW-01

CL2-03-GW-02-AVG

CL2-05-GW-01NSCL2-05-GW-03

CW5-03-GW-01

CW5-03-GW-02R-AVG

ivhtrogen, AmmoniaNitrogen, AmmoniaNitrogen, AmmoniaNitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, AmmoniaNitrogen, AmmoniaNitrogen, AmmoniaNitrogen, AmmoniaNitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, AmmoniaMitrogen, AmmoniaMitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, AmmoniaNitrogen, AmmoniaNitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, AmmoniaNitrogen, Ammoniafltrogen, AmmoniaNitrogen, Ammonia•Jitrogen, Ammonia

Nitrogen, Ammonia•litrogen, Ammonia

'Jitrogen, AmmoniaNitrogen, Ammonia

•fitrogen, AmmoniaNitrogen, Ammonia

-litrogen, AmmoniaNitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, Ammonia

•litrogen. Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia'itrogen, Ammonia

Nitrogen, Ammonia

itrogen. Ammonia

CB1-04-GW-01NS-1 10701CB2-05-GW-02CB2-05-GW-03RCB2-06-GW-02NSCB3-02-GW-01NS

CB3-02-GW-03CB3-03-GW-03CB4-03-GW-03CB4-04-GW-01NSCB4-04-GW-02NS

CB4-05-GW-03NS

CB5-01-GW-01CB5-02-GW-02

CB5-02-GW-03

CB5-03-GW-03

CB6-03-GW-01

CB6-03-GW-02CB6-03-GW-03CB7-01-GW-01

CB7-01-GW-03CB7-02-GW-01CB7-02-GW-02

CB7-03-GW-01CB7-03-GW-02R

CB7-03-GW-03CB8-01-GW-01CB8-01-GW-03CB8-04-GW-02NSCB9-01-GW-01CB9-01-GW-03CB9-02-GW-02

CB9-04-GW-01

CB9-05-GW-01CE3-02-GW-03CE4-02-GW-01

CE4-03-GW-01NS-07230I

CE4-03-GW-03CH1-04-GW-04

CH1-04-GW-05R

CH2-02-GW-02

CH2-02-GW-05

CH2-04-GW-05

CH2-04-GW-06

CL2-03-GW-01

CL2-03-GW-02

CU-05-GW-01NS

CL2-05-GW-03

CW5-03-GW-01

CW5-03-GW-02R

215013.3

738.5127032249.51562.7

1.8721.916 J720281

2710276

1910859

27.40.13

7611.4195348

13805.1173.3223558389147

3.522.170.0412.2

104

0.42

0.0550.092

2.52.54

0.630.240.18

0.05911.30.11

466.4

J

J

JJ

J

J

J

UJJ

JJJ

U

UJUJJJJUJUJUJ}UJJ

MG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMCA.MG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/L

MG/L

MG/LMG/LMG/L

MG/L

MG/LMG/LMG/LMG/L

MG/L

MG/LMG/LMG/LMG/LMG/LMG/LMG/LMG/L

MG/L

MG/L

MG/L

MG/LMG/L

Page 1 of 2 Groundwater ammonia data for addendum.xls [Basic]

TABLE 1. GROUND WATER AMMONIA RESULTS

NSAMPLE PARAMETER EPASAMNO LAB_RESULT J QUAL

CW5-03-GW-03NS

CW5-05-GW-02R

CW5-05-OW-03

CW5-08-OW-01

P1-01-GW-01-041201

Pl-Oi-GW-OIR

P1-01-GW-02

P1-01-GW-02R

P1-OI-GW-03R

P1-01-GW-04R

P1-01-GW-05R-AVG

PI-01-GW-06NS-U0701

P1-01-GW-07NS

PI-01-GW-08NS-1 11301

P1-02-GW-01

P1-02-GW-02

P1-02-GW-03

P1-02-GW-04-AVG

P1-02-GW-05NS-1 10501

P1-02-GW-06NS-1 10601

P1-02-GW-07NSP1-03-GW-01

P1-03-GW-02

PI-03-GW-03

P1-03-GW-04

P1-03-GW-05NS

P1-03-GW-06NS-051601

P1-04-GW-01

P1-04-CW-02-AVG

P1-04-GW-03P1-04-GW-04

P1-05-GW-01

P1-05-GW-02

P1-05-GW-03P1-05-GW-04NS

P1-05-GW-05

P1-06-GW-01

P1-06-GW-02

P1-06-GW-03

P1-06-GW-04

Pl-07-GW-m-AVG

P1-07-GW-02P1-07-GW-03NS-073I01

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Mitrogen, Ammonia

Nitrogen, AmmoniaNitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

>Iitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

tf trogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

Nitrogen, Ammonia

filrogen. AmmoniaNitrogen, Ammonia

CW5XJ3-GW-03NS

CW5-05-GW-02R

CW5-05-GW-03

CW5-08-GW-01

Pl-Ol-GW-Ol-041201

P1-01-GW-01R

P1-01-GW-02

P1-01-GW-02R

P1-01-GW-03R

P1-01-GW-04R

P1-01-GW-05R

P1-01-GW-06NS-1 10701

P1-01-GW-07NS

P1-01-GW-08NS-1 1 1301

P1-02-GW-01

P1-02-GW-02

P1-02-GW-03

P1-02-GW-04

P1-02-GW-05NS-1 10501

P1-02-GW-06NS-1 10601

P1-02-GW-07NSP1-03-GW-01

P1-03-GW-02

P1-03-GW-03

P1-03-GW-04

P1-03-GW-05NS

PI-03-GW-06NS-051601

P1-04-GW-OI

P1-04-GW-02

P1-04-GW-03

P1-04-GW-04

P1-05-GW-01

Pl-OS-GW-02

P1-05-GW-03

P1-05-GW-04NS

P1-05-GW-05

P1-06-OW-01

P1-06-GW-02

P1-06XJW-03

P1-06-GW-04

P1-07-GW-01

P1-07-GW-02P1-07-GW-03NS-073101

2492370

6161.4

1.97

1.42

0.11

0.04

0.04

0.049

0.051

030.16

0.27

8.7

19.5

8.02

0.28

1.131.150.24

0.087

0.079

0.30.11

0.74

0.38

OJ41.82

0.072

0.065

0.22

1.46

1.86

0.16

0.071

0.042

0.072

0.39

0.088

0.052

0.0850.078

JJ

UuUJ

UJUJuu

UJUJu

uUJUJ

UJ

UJUJUJJ

UNITS

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/L

MG/LMG/L

Page 2 of 2 Groundwatcr ammonia data for addendum.xls [Basic]

TABLE 2. SURFACE WATER AMMONIA RESULTS

Location

WN50

WC50

WS50

WN50

WC50

WS50

WN50

WC50

WS50

WN50

WC50

WS50

WC50

WS50

WS50

Hall's Brook Inlet

Atlantic Ave. Drainway

HBHA Pond Outlet

IP-OUTLET-01

Date

11/30/1999

11/30/1999

11/30/1999

4/4/2000

4/4/2000

4/4/2000

8/25/2000

8/25/2000

8/29/2000

4/2/2001

4/2/2001

4/2/2001

9/17/2001

9/17/2001

9/20/2004

4/5/2000

5/18/2000

8/30/2000

4/5/2001

9/16/2001

9/20/2004

4/5/2000

4/5/2001

9/20/2004

4/5/2000

5/18/2000

8/30/2000

4/5/2001

9/16/200J

9/20/2004

7/11/2005

Pepth

(cm)

50

50

50

50

50

50

50

50

50

50

50

50

50

50

50

10

10

10

10

10

10

10

10

10

10

10

10

10

10

10NA

Depth

(ft)

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

1.6

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33

0.33NA

NH3-N

mgN/L

9.59.36

9.58

7.4

7.6

7.9

13.1

14.8

16

5.4

55.3

16.4

15.1

2

5.2

7.8

7.6

5.5

4.1

3.3

0.12.20.77.4

816

6.9

17.2

43.81

NotesNA = not applicable or not available

Page 1 of 1 Surface Water Ammonia data for addendum.xls [SW]

TABLE 3. SURFACE SOIL SAMPLING RESULTS - RC SAMPLES

INDUSTRI-PLEX OU-2 (INCLUDING WELLS G OU-3) SUPERFUND SITE

Sample ID:Sample Date:

Matrix:Lab Sample ID:

Contaminant (mg/kg)AluminumAntimony

ArsenicBariumJeryllium

CadmiumCalciumChromiumCobaltCopperYon-cadMagnesiumManganeseNickelPotassium

SeleniumSilverSodiumThalliumVanadiumZinc

RC-0112-Jul-05

Soil/SedimentAA51321

4,6009.8 U20 U56

0,98 U2.9 U

2,300131120

5,70069

8301,600

9.5390 U9.8 U2.9 U200 U

20 U1453

RC-0212-Jul-05

Soil/SedimentAA5I322

9,10015 U30 U481.5 U4.5 U

8,000214.729

13,000140900

94I I

600 U15 U

4.5 U300 U

30 U3679

RC-0312-JuI-05


9,00016 U32 U481.6 U4.8 U

3,700265.079

20.000240690

3311

640 U16 U

4.8 U320 U

32 U4857

RC-0412-Jul-05


3,80016 U32 U401.6 U4.8 U

4,80017

4.8 U22

7,800250370

249.6 U640 U

16 U4.8 U640

32 U2445

RC-0512-Jul-05


8,30012 U24 U371.2 U3.6 U

9,400223.921

7,700370620

237.3490

12 U3.6 U

240 U24 U3741

RC-0612-Jul-05

Soil/SedimentAA5I326

3.10010 U20 U211.0 U3.1 U720

173.1 U16

4,3002801509.36.2

410 U10 U

3.1 U200 U

20 U2823

RC-0712-Jul-05


.2,900

11 U22 U13

1.1 U3.3 U983.73.3 U4.0

2,90052693.86.6 U

440 UII U

3.3 U220 U

22 U9.55.8

Page 1 of2 Soil data for addendum.xls [Data]

I 1

TABLE 3. SURFACE SOIL SAMPLING RESULTS - RC SAMPLESINDUSTRI-PLEX OU-2 (INCLUDING WELLS G OU-3) SUPERFUND SITE

Sample ID:Sample Date:

Matrix:Lab Sample ID:

Contaminant (nig/kg)AluminumAnlimonyArsenicJariumJerylliumCadmiumCalciumChromiumCobaltCopperron^eadMagnesiumManganeseNickelPotassiumSeleniumSilverSodiumThalliumVanadiumZinc

RC-08l2-Jul-05


5,40013 U26 U731.3 U3.9 U

6,00012

7.621

6,400200

1,0003711

53013 U

3.9 U260 U

26 U1864

RC-08Dl2-Jul-05

Soil/SedimentAAS1332

4,9009.8 U20 U78

0.98 U2.9 U

5,4009.47.520

6,600170600

3811

5409.8 U2.9 U200 U20 U1667

RC-0912-Jul-OS


3,10010 U20 U401.0 U3.0 U

5,40012

3.0 U19

6.700240360

336.6

400 U10 U

3.0 U200 U

20 U2156

RC-09D12-Jul-OS


3,90010 U20 U511.0 U3.0 U

7,10016

3.724

8,400280480

507.8

400 U10 U

3.0 U200 U20 U2673

RC-1012-M-05


13,00011 U23 U171.1 U3.4 U440164.617

7,300190690247.2460 U

11 U3.4 U230 U40 U4033

RC-ll12-Jul-05


2,2001220 U

7.00.99 U

3.0 U1308.43.0 U11

3,60016085

6.45.9 U

400 U9.9 U3.0 U200 U20 U2817

RC-1212-Jul-05

Soil/SedimentAA5133I

-^

7,4009.7 U19 U30

0.97 U2.9 U

2,700182126

17,00055

3,100790

145209.7 U2.9 U190 U40 U2484

Page 2 of2 Soil data for addendum.xls [Data]

C3~ AIR MODELING

APPENDIX C.3

AIR MODELING

*

1.0 INTRODUCTION

This appendix contains a description of the methods and assumptions used to evaluate

inhalation exposures to ammonia following its release to air during groundwater use in a warm

water car wash.

The purposes of this evaluation are: 1) to evaluate the potential human health risks that may be

posed by ammonia contamination of groundwater at the Industri-plex site area; and 2) to provide

a basis for decisions as to whether remedial action is necessary for ammonia in groundwater.

This assessment provides estimates of risk under a hypothetical future groundwater use

scenario (use of groundwater in a warm water car wash) for the reasonable maximum exposedi

(RME) receptor, used to represent the maximum (upper-bound) exposure that is reasonably

expected to occur.

2.0 HAZARD IDENTIFICATION

To evaluate the impact of future industrial and commercial groundwater use on indoor air quality,

the maximum detected groundwater ammonia concentration presented in Table 1 of this

appendix (2,710,000 ug/L) was modeled to an indoor air concentration using methods and

assumptions provided in Table 2 of this appendix. Indoor air concentrations were modeled

based on the use of groundwater in a warm water car wash. For estimation of air concentration

in a warm water car wash, the shower model approach presented by Foster and Chrostowski

(1986; 1987) was assumed to be proportionally representative of conditions similar to a car

wash. The modeling equations and model inputs are provided on Table 2. A Henry's Law

Constant (ATSDR, 2002) applicable to ammonia at pH 7 was selected for use in the modeling

based on site-specific groundwater pH measurements which indicate that groundwater pH

ranges from 4.64 to 8.04 at the site, with most measured values below pH 7. The model adjusts

the Henry's Law Constant for its application to a temperature of 45 °C (113 °F). The maximum

Appendix C.3 - Draft 1 October 2005

modeled indoor air concentration is presented in Table 2.1 of Appendix C.1 (319,697 ug/m3).

Because only one air concentration was modeled (based on the maximum groundwater

concentration), only one air concentration (i.e., the maximum predicted concentration) appears

on Table 2.1 of Appendix C.1.

The maximum modeled indoor air concentration of ammonia was compared to its ambient air

preliminary remedial goal (PRG) published by USEPA Region 9 (USEPA, 2004b) to determine

whether further evaluation of ammonia was warranted. PRGs are chemical concentrations

back-calculated using toxicity criteria and either a 1 x 10"6 target risk level for potential

carcinogens or a hazard quotient (HQ) of 1 for noncarcinogens. For purposes of this screening

analysis, a HQ of 0.1 was used to add a ten-fold measure of safety to reduce the chance of

omitting ammonia from the list of chemicals that could contribute to a total hazard index (HI) of 1.

To accomplish this, the ammonia PRG was divided by 10 prior to comparison to its maximum

modeled value resulting in an adjusted PRG of 10 ug/m3. Because the maximum modeled air

concentration exceeded the Region 9 ambient air PRG (Table 2.1 in Appendix C.1), further risk

evaluation of ammonia was performed.

3.0 EXPOSURE AND TOXICITY ASSESSMENT

Because USEPA recommends the use of the UCL providing 95% coverage on the arithmetic

mean concentration for the estimation of RME risk (USEPA 1989; 1992; 1994; 2002; and

2004a), ammonia groundwater data were used to generate a groundwater UCL value which was

then modeled to estimate an airborne UCL ammonia concentration a worker may be exposed to

during warm water car wash use. The groundwater ammonia UCL was calculated using

USEPA's program "ProUCL Statistical Software" (version 3.0). Table 4 in this appendix provides

the ProUCL output for the groundwater data. Table 3.RME in this appendix summarizes the

mean, maximum, and 95% UCL groundwater values. The 95% UCL groundwater concentration

(316,000 ug/L) was then modeled to a 95% UCL airborne ammonia concentration (37,300

ug/m3). Table 5 in this appendix documents the groundwater UCL, assumptions used in the

modeling, and the inputs to the model. The same model and assumptions used to generate the

maximum ammonia indoor air concentration were used to predict a 95% UCL indoor air

ammonia concentration. Tables 3.1.RME in Appendix C.1 lists the modeled UCL ammonia air

Appendix C. 3 - Draft 2 October 2005

concentrations used to evaluate the car wash water use scenario.

Car wash workers are assumed to be exposed to volatile COPCs in indoor air only. For the

inhalation pathway, the exposure time was assumed to be equivalent to a typical 8-hour work

day for both the CT and RME cases (USEPA, 1997). An exposure frequency of 250 days/year

was used, representative of the 95th percentile number of days worked per year. The default

high-end exposure duration of 25 years was used for the RME case (USEPA, 1997). An

ammonia inhalation reference concentration (RfC; 100 ug/m3) from the Integrated Risk

Information System (IRIS; USEPA, 2005) was used, in conjunction with the exposure

assumptions, to estimate noncarcinogenic hazard for the car wash scenario. Based on available

information, ammonia is not a classified as a known, probable, or potential carcinogen.

Therefore, only noncarcinogenic ammonia hazards have been further evaluated.

4.0 RISK CHARACTERIZATION AND CLEANUP LEVEL DEVELOPMENT

Risk characterization combines estimates of exposure with toxicity data to develop estimates of

the probability that an adverse effect will occur under the specified conditions of exposure.

Noncancer hazard is estimated by means of a Hazard Quotient (HQ). To calculate the

noncarcinogenic HQ, the following equation was used:

HQ = (CA x ET x EF x ED) / (CF x AT x RfC)

Where:

CA = modeled 95% UCL ammonia concentration in air (37,300 ug/m3)

ET = exposure time (8 hours/day)

EF = exposure frequency (250 days/year)

ED = exposure duration (25 years)

CF = conversion factor (24 hours/day)

AT = averaging time (9,125 days)

RfC = reference concentration (100 ug/m3)

The HQ for ammonia (85) exceeds the target HQ of 1. Therefore, ammonia was determined as

posing a future potential risk to human health. Based on this determination, a cleanup goal was


developed for ammonia based on the same methods and assumptions used to estimate the

noncancer hazard for ammonia. Using the following proportionality, a groundwater cleanup goal

was estimated:

95% UCL groundwater concentration groundwater PRG

RME HQ target HQ

Where:

95% UCL Groundwater Concentration = 316,000 ug/LRME HQ = 85Target HQ = 1Groundwater PRG = 3,718 ug/L (rounded to 4,000 ug/L or 4 mg/L)

5.0 REFERENCES

Agency for Toxic Substances and Disease Registry (ATSDR). 2002. ToxicologiCal profile for

ammonia. U.S. Department of Health and Human Services. Public Health Service.

December 2002.

Foster and Chrostowski. 1986. Sara A. Foster and Paul C. Chrostowski, ICF Clement Assoc.

Integrated Exposure Model for Use of Tap Water Contaminated with Volatile Organic

Chemicals. 79th Annual Meeting of the Air Pollution Control Association, Minneapolis,

Minnesota. June 1986.

Foster and Chrostowski. 1987. Sara A. Foster and Paul C. Chrostowski, ICF Clement Assoc.,

Washington, D.C. Inhalation Exposure to Volatile Organic Contaminants in the Shower.

80th Annual Meeting of the Air Pollution Control Association, New York, New York. June

21-26, 1987.

U.S. Environmental Protection Agency (USEPA). 1989. Risk assessment guidance for

Superfund. Volume I: Human health evaluation manual. Part A. Interim Final.

EPA/540/1-89/002. December 1989.

U.S. Environmental Protection Agency (USEPA). 1992. Supplemental guidance to RAGS:

calculating the concentration term. Office of Solid Waste and Emergency Response.


Washington, D.C. Publication 9285.7-081. May 1992.

U.S. Environmental Protection Agency (USEPA). 1994. Risk updates, no. 2. USEPA Region I.ii

August 1994.

U.S. Environmental Protection Agency (USEPA). 1997. Exposure factors handbook. Office of

Research and Development. Washington, D.C. August 1997.

U.S. Environmental Protection Agency (USEPA). 2002. Calculating upper confidence limits for

exposure point concentrations at hazardous waste sites. Off ice of Emergency and

Remedial Response. Washington, D.C. OSWER 9285.6-10. December 2002.

U.S. Environmental Protection Agency (USEPA). 2004a. ProUCL version 3.0 statistical

software to compute upper confidence limits on the unknown population mean.

Technical Support Center. Las Vegas, Nevada.

http://www.epa.gov/nerlesd1/tsc/tsc.html. April 2004.

U.S. Environmental Protection Agency (USEPA). 2004b. Preliminary remediation goals table.

Region 9 technical support team. Office of Superfund Programs. Region IX. October

2004.

U.S. Environmental Protection Agency (USEPA). 2005. Integrated risk information system

(IRIS). Environmental Criterion and Assessment Office. August 2005.


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TABLE 4. PRO UCL OUTPUT

OausFleVariable:

1 U-ANEVWELLSG&HVRI AddenouMCroundwatei ammonian data for aOOendunvxls

Raw StatisticsNumber of ObservationsNumber of Missing DataNumber 01 Vald Observationslumber ol Distinct ObservationsMinimumMaximumMean !Standard DevotionVariance iCoefficient of VariationSkewne&s 1Too Few Distinct Observations?Normal StatisticsUWelorsTeslStaOsHIcLJUIefors 5% Critical ValueShaplro-WiBi Test StatisticShaplro-Wilk 5% Critical Value5% Normality Test Result95% student's-! UCLGamma Statisticsthat< star (biasThelahatThetastarnu hatnu slar

corrected

jAmmonia II

^—

921 ioi ;

... «|

T!

1

J

187J i

0.02 12710

zoa.eisl549.7804302258.'2.632859)3.2554821

NO

0.3780550.092372WA

{t

N/ANOT NORMAL304.065:

0.1742430.175807

I 11M.415

5% Approximate Chi Souare ValueAdjusted Level of SignificanceAdjusiea CM Square ValueAnderson-Darting Test Statistic

1187.75

!

!

ti

Data not normal at 5% stonlflcan

32.0606632.3485320.346520.047391

i 20.19197

iI

, 1 5.505533!Anderson-Oarlna5% Critical ValueAnderson-Oarina 5% Gamma Test ResultKolmoflrov-Smimov Test StatisticKotmoH'ov-Smimov 5% Critical Value<dmogrov-Smimov5% Gamma Test Resull5% Gamma Test Result95% Approximate Gamma UCt95% Adjusted Gamma UCL.OQironrval statisticsMinimum of IOD dataMaximum of log data.lean of log dataStandard Deviation ol loo dataVariance of loo data tUBieforsTestSlalisWcjiteforc 5% Critical Value

Shapiro-Wine Test Sta&sMcShapiro- Wile .5% Critical Value5% Lognormality Test ResultMLE MeanMLE Standard DeviationMLE Coefficient of VariationJLESkewneis

MLE Median«_E 60% Ouanae

MLE 90% Quanta*»LE95%QuanlileJLE 99% Ouanse»VU Estimate ol Median

MVU Estimale of Mean

0.93758

ce level

j

11

"" ' 1 i

(

WOT AD GAMMA ! Data not oamma acsWxited at 5% sionBicance level0.1917510.104296 t

j !! 1

NOT KS GAMMA I Data not samma distributed at 5X sioniflcanee levelNOT GAMMA Oata not gamma eNstritxjted at 5% significance level i331.9909334.4822

•3.912027.9047041.0274493.659444

1 1359153i 0.0996840.092372M/AWA

1

i

INOTLOGNORMALI 2260.218I 1828454I 808.97315.29E«C8

Data not loanormal at

2.79393I81.539531307.9186 "•1149.6761 i

[ '

i

5%M>r»r>c

13895.45!2.597663! I1408.783

<VU Estimale of Standard DevbOonMVU Estimate of SE of Mean I95%H-UCL6% Cheoyshev (MVUE1 UCL7.5% Ol«>yshev (MVUE) UCLS% CneDyshev (MVUE) UCL

Non-parametric Statistics5%O.TUCL5%AdjusUH>£LTUCL5K Modified-t UCL5% jackXnlfe IXL

95% cnebyshev (Mean. Sdl UCL97.5% Chebvshev fUean. Sd) UCL

155474.11

1012.0061 |18670.I2J j5818.014 !7726.75711476.11J

i303.0956; i323.8829! 1307.3077! i304.0653: !45J.660SJ 1566.7693!

99%aiebvshev(Mean,Sd)UCL i 77S.1275!Bootstrap StatisticsUmber of Bootstrap Runs5% Standard E-ootetrao UCL

95%Bootstrap-IUCL!5% Hairs Bootstrap UCL5% Percentae Bootstrap UCL

95% BCA Bootstrap UCLecommendauonsigman Inspection Recommende<

Apprapnate Dteuitxilionst Recommended UCL

2nd Recommenced UCLrd Recommended UCL

j ,i 20001305.11T4!

: 337.4971 i316.1744)302.3632

! 322.9993!

P IY6Si NON-PARAMETRIC3161744: 195% Hafs Bootstrap

iecommended UCL > Max Da la Value '•I1

1

iancelevel ,

i i

i

1

1

... j

1- - j

. -.j

! i

] !: i

'• i

i1

CL

11

Recommendation Warnlna! IPLEASE CHECK Hairs Bootstrap/Bootstrap-! may yield erraticAlternative UCL 1 ;NONE i in that case use 99% Chebvshev (Mean. Sd)

—

'a'ues.ixx ;

F>;c I of I anvrvnu ProUCL.xb | Amncou)

TAOLE 5. SHOWER MODELFOSTER ANB CHROSTOWSKfFiiliire Advil Scenario - Northern Sludy ton Croiindwiter In Car \Vssti. 9SV* UCL Con«ntr»llun>

Analyle

Ammonil

Eillmalton o( Gvt-ttiiie MM*Tnn* frr CoeHlritnl (tmftir)

Srvoo

fcfflttM MW fc*VQC)

3.00E403 1.70B+OI 3.08E+03

Eltlmiltott of JJ<juW-Pli**r MMITnnttcf Co»(Htl«nl (cm/hour)

klpn, MW k»,«,

cmltf fl/mole on%r

2.00E+OI I.70E-HH 3.1IE«OI

CuloallM olOi.n.11 Mil.TnniltrOclllclnil (cniDif)

K,.

H RT KI

itan-W/mok ttm-mVtnole cnW

7E-M 2.40G-02 I.HE-OI

Tmi|)«nilurc AdJuMcd Ovcntt M»iTniulcr Coimclral (nMirl- K'L

K1,.

TI T« u, n. K'i

K K ep cp onlir

2.93E402 ).I>B*02 I.OOI3<00 5.WE-OI I.IOE+00

Sho«irDropld

\ '^Uf^L. • sec mn ux/L

3.16EH15 1E«00 IE400 S.77EWJ

VOC Conollc.nR.lt U-IhtSlwotrRoom

S

FR SV S

Vain «" ug/m'-min

IB«)I 6E<00 ».<SE<OJ

VOC Air Contmtnilon Inlh( Show Room ( lor 1 c- n,)

R D. 1 C.(l)

min' oin min ins'm

I.53E-0) I.SOE*OI SE+00 3.73E«OI

M\V- Molecular wHfMf|An(e)

k^\» .-. • Cu-phuc nun- trwi fcf eoefficltnl for the wutyie (cm1ir|t, .,>,.-, • liquid ph«e man inatftt coefficient for CO, (cflVhr)LI.VW. " Uquid-phuc nuK-innira cocllkitni br At in»l)U (cnVhr )

H" HtnryiljwCo*tun*(iim-mVmole)RT * Cu eo««uni-icinp bctof (>lm-m'/mole)

T, - Calibration water imipcratureoTi " Shower water temperature (range J00.)20 K)

U| • Wiia viscosity *l T,(» 20 C). centipotie (cp)u, * Wutr viteositj if T.f« ti

Cw-

Ftt •

SV >

S*R •

D, *

mstt-tnuurer todlkicnt (ctnAr)water conuamtion (ftp wucr cone. • « (4.)

IUM (ire)Showw dfoplM daintier (miltimttm. mn)ConccntraticM Itavlnjj ibavrr tlrapld ifta Umc t, (agA.)

Shown wkitr flow nte f Jiiw'f

me in live (hower room (ug'm'-nUn)

Air ckchu|c nic (min- 1 )Shower d«nt ton <min)

time (mto)Time 4cpmdc*i Mow coKcninUMi

Page 1 of) air.xls (Shower-Study Arca-95 UCUJ

APPENDIX D

NATIONAL RECOMMENDED WATER QUALTIY CRITERIA TABLES FOR AMMONIA

United States Office of Water EPA-822-R-99-014Environmental Protection 4304 December 1999Agency

SERA 1999 Updateof AmbientWater QualityCriteriafor

Ammonia

Supersedes 1998 Update

pH-Dependent Values of the CMC (Acute Criterion)

CMC,

PH

6.5

6.6

6.7

6.8

6.9

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

8.0

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

9.0

SalmonidsPresent

32.6

31.3

29.8

28.1

26.2

24.1

22.0

19.7

17.5

15.4

13.3

11.4

9.65

8.11

6.77

5.62

4.64

3.83

3.15

2.59

2.14

1.77

1.47

1.23

1.04

0.885

mgN/L

SalmonidsAbsent

48.8

46.8

44.6

42.0

39.1

36.1

32.8

29.5

26.2

23.0

19.9

17.0

14.4

12.1

10.1

8.40

6.95

5.72

4.71

3.88

3.20

2.65

2.20

1.84

1.56

1.32

86

Temperature and pH-Dependent Values of the CCC (Chronic Criterion)for Fish Early Life Stages Present

>

pH

6.5

6.6

6.7

6.8

6.9

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

8.0

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

9.0

0

6.67

6.57

6.44

6.29

6.12

5.91

5.67

5.39

5.08

4.73

4.36

3.98

3.58

3.18

2.80

2.43

2.10

1.79

1.52

1.29

1.09

0.920

0.778

0.661

0.565

0.486

14

6.67

6.57

6.44

6.29

6.12

5.91

5.67

5.39

5.08

4.73

4.36

3.98

3.58

3.18

2.80

2.43

2.10

1.79

1.52

1.29

1.09

0.920

0.778

0.661

0.565

0.486

CCC for

16

6.06

5.97

5.86

5.72

5.56

5.37

5.15

4.90

4.61

4.30

3.97

3.61

3.25

2.89

2.54

2.21

1.91

1.63

1.39

1.17

0.990

0.836

0.707

0.601

0.513

0.442

Fish Early Life

18

5.33

5.25

5.15

5.03

4.89

4.72

4.53

4.31

4.06

3.78

3.49

3.18

2.86

2.54

2.24

1.94

1.68

1.43

1.22

1.03

0.870

0.735

0.622

0.528

0.451

0.389

Stages Present,

Temperature, C

20 22 24

4.68

4.61

4.52

4.42

4.30

4.15

3.98

3.78

3.57

3.32

3.06

2.79

2.51

2.23

1.96

1.71

1.47

1.26

1.07

0.906

0.765

0.646

0.547

0.464

0.397

0.342

4.12

4.05

3.98

3.89

3.78

3.65

3.50

3.33

3.13

2.92

2.69

2.45

2.21

1.96

1.73

1.50

1.29

1.11

0.941

0.796

0.672

0.568

0.480

0.408

0.349

0.300

3.62

3.56

3.50

3.42

3.32

3.21

3.08

2.92

2.76

2.57

2.37

2.16

1.94

1.73

1.52

1.32

1.14

0.973

0.827

0.700

0.591

0.499

0.422

0.359

0.306

0.264

mgN/L

26

3.18

3.13

3.07

3.00

2.92

2.82

2.70

2.57

2.42

2.26

2.08

1.90

1.71

1.52

1.33

1.16

1.00

0.855

0.727

0.615

0.520

0.439

0.371

0.315

0.269

0.232

28

2.80

2.75

2.70

2.64

2.57

2.48

2.38

2.26

2.13

1.98

1.83

1.67

1.50

1.33

1.17

1.02

0.879

0.752

0.639

0.541

0.457

0.386

0.326

0.277

0.237

0.204

30

2.46

2.42

2.37

2.32

2.25

2.18

2.09

1.99

1.87

1.74

1.61

1.47

1.32

1.17

1.03

0.897

0.773

0.661

0.562

0.475

0.401

0.339

0.287

0.244

0.208

0.179

87

Temperature and pH-Dependent Values of the.CCC (Chronic Criterion)for Fish Early Life Stages Absent

1

PH

6.5

6.6

6.7

6.8

6.9

7.0

7.1

7.2

7.3

7.4

7.5

7.6

7.7

7.8

7.9

8.0

8.1

8.2

8.3

8.4

8.5

8.6

8.7

8.8

8.9

9.0

0-7

10.8

10.7

10.5

10.2

9.93

9.60

9.20

8.75

8.24

7.69

7.09

6.46

5.81

5.17

4.54

3.95

3.41

2.91

2.47

2.09

1.77

1.49

1.26

1.07

0.917

0.790

CCC for Fish Early Life

8

10.1

9.99

9.81

9.58

9.31

9.00

8.63

8.20

7.73

7.21

6.64

6.05

5.45

4.84

4.26

3.70

3.19

2.73

2.32

1.96

1.66

1.40

1.18

1.01

0.860

0.740

9

9.51

9.37

9.20

8.98

8.73

8.43

8.09

7.69

7.25

6.76

6.23

5.67

5.11

4.54

3.99

3.47

2.99

2.56

2.18

1.84

1.55

1.31

1.11

0.944

0.806

0.694

10

8.92

8.79

8.62

8.42

8.19

7.91

7.58

7.21

6.79

6.33

5.84

5.32

4.79

4.26

3.74

3.26

2.81

2.40

2.04

1.73

1.46

1.23

1.04

0.885

0.756

0.651

Stages

Temperature

11 12

8.36

8.24

8.08

7.90

7.68

7.41

7.11

6.76

6.37

5.94

5.48

4.99

4.49

3.99

3.51

3.05

2.63

2.25

1.91

1.62

1.37

1.15

0.976

0.829

0.709

0.610

7.84

7.72

7.58

7.40

7.20

6.95

6.67

6.34

5.97

5.57

5.13

4.68

4.21

3.74

3.29

2.86

2.47

2.11

1.79

1.52

1.28

1.08

0.915

0.778

0.664

0.572

Absent,

13

7.35

7.24

7.11

6.94

6.75

6.52

6.25

5.94

5.60

5.22

4.81

4.38

3.95

3.51

3.09

2.68

2.31

1.98

1.68

1.42

1.20

1.01

0.858

0.729

0.623

0.536

mg N/L

14

6.89

6.79

6.66

6.51

6.33

6.11

5.86

5.57

5.25

4.89

4.51

4.11

3.70

3.29

2.89

2.52

2.t7

1.85

1.58

1.33

1.13

0.951

0.805

0.684

0.584

0.503

15*

6.46

6.36

6.25

6.10

5.93

5.73

5.49

5.22

4.92

4.59

4.23

3.85

3.47

3.09

2.71

2.36

2.03

1.74

1.48

1.25

1.06

0.892

0.754

0.641

0.548

0.471

16*

6.06

5.97

5.86

5.72

5.56

5.37

5.15

4.90

4.61

4.30

3.97

3.61

3.25

2.89

2.54

2.21

1.91

1.63

1.39

1.17

0.990

0.836

0.707

0.601

0.513

0.442

* At 15 C and above, the criterion for fish ELS absent is the same as the criterion for fish ELSpresent.

88

APPENDIX E

AMMONIA TOXICITY PROFILE

TOXICITY PROFILE

AMMONIA

Ammonia (NH3) is found throughout the environment in the air, soil, and water. It is also found inplants and animals, including humans. Bacteria found in the intestines can produce ammonia.It occurs naturally and is produced by human activity. As an important nutrient, it does not lastlong in the environment, but is taken up quickly by plants, bacteria, and animals. It does notbiomagnify in the food chain (ATSDR, 2004). Ammonia is manufactured by reacting hydrogenwith nitrogen in a reaction called the Haber Process. About 80% of ammonia produced is usedin fertilizers. Ammonia is used as a refrigerant gas, in the manufacture of plastics, explosives,pesticides, and other chemicals, as a corrosion inhibitor, in the purification of water supplies, asa cleaning component, in the pulp and paper, metallurgy, rubber, food and beverage, textile, andleather industries, and in the manufacture of Pharmaceuticals (ATSDR, 2002). Ammonia is alsoproduced naturally when organic matter decomposes (ATSDR, 2004).

At room temperature,' ammonia is a colorless, highly irritating gas with a distinct pungent,suffocating odor. It is lighter than air and can be flammable at high concentrations andtemperatures (ATSDR, 2002). This odor is familiar to many people because of its use insmelling salts, many household and industrial cleaners, and window cleaning products.Ammonia is also applied directly to soil as a fertilizer for farm crops, lawns, and plants. It iseasily compressed, and forms a clear colorless liquid under pressure (ATSDR, 2002). Ammoniacan dissolve easily into water to form the ammonium ion (NH4

+) and ammonium hydroxide(NH4OH), an alkaline solution. Ammonia-based cleaning products vary between 5% (householdcleaner) and 25% (commercial cleaner) solutions. Commercial strength cleaners are corrosiveand commonly stored in steel drums. Once exposed to open air, dissolved ammonia quicklyvaporizes (ATSDR, 2004). Adequate ventilation and protective clothing are recommended whenusing ammonia-based cleaners or fertilizers (ATSDR, 2002).

No adverse health effects have been noted in humans exposed to typical environmentalconcentrations of ammonia. However, exposure to higher concentrations of airborne ammonia(> 100 ppm) may be irritating to the skin, eyes, throat, and lungs, causing coughing and burns.The irritation may be accompanied by lacrimation, rhinorrhea, and upper airway swelling. Theseeffects are caused by the reaction of moisture in the mucous membranes with ammonia toproduce ammonium hydroxide. Lung damage, characterized by bronchiolar and alveolar edemaand airway destruction, and death have resulted after exposure to extremely high concentrationsof ammonia (> 300 ppm). However, ammonia=s odor threshold (5 ppm) is sufficiently low toprovide adequate warning of its presence. Asphyxiation may occur in poorly ventilated orenclosed spaces. Chronic exposure may cause chronic cough, asthma, and lung fibrosis(ATSDR, 2002).

Ingestion of concentrated ammonia solutions can cause corrosive damage to the mouth, throat,and stomach, accompanied by nausea, vomiting, abdominal pain, and esophageal burns.Ingestion of ammonia does not normally result in systemic poisoning due to its rapid (i.e., withinminutes) biotransformation in the body to less toxic materials. Ammonia breakdown productstypically leave the body within a couple of days (ATSDR 2004). Dilute aqueous solutions (5%)can produce moderate skin irritation. More concentrated solutions can cause pain,inflammation, blisters, necrosis, and deep burns, especially on moist skin. Frostbite injury canoccur upon contact with compressed liquid ammonia (ATSDR, 2002).

Airborne concentrations of greater than 50 ppm may produce rapid eye irritation (ATSDR, 2002).

Higher concentrations may cause severe eye injury. Splashing 25% ammonia solutions into theeyes can also cause skin burns and permanent eye damage that may result in blindness

( (ATSDR, 2004). Cataracts and glaucoma have been reported in people acutely exposed toammonia vapor. '< '

A level of 300 ppm is considered immediately dangerous to life or health (ATSDR, 2002). Thereis no antidote for ammonia poisoning, but ammonia=s effects can be treated and most peoplerecover.

Ammonia is an essential metabolite for DMA, RNA, and protein synthesis and is necessary formaintaining acid-base balance. Ammonia is produced and used in all mammalian species,including humans. Minimal Risk Levels (MRLs) of 1.7 ppm and 0.1 ppm for acute-duration andchronic-duration inhalation exposures, respectively, have been established. If a person isexposed to ammonia in air at a concentration below the MRL, it is not expected that harmfulhealth effects will occur. No oral MRLs have been derived for ammonia in water. However, theamount of ammonia that can be safely ingested and assimilated may be substantial (tens ofmg/kg) based on the various efficient ways by which the body can dispose of ammonia (ATSDR,2004).

Ammonia has not been classified as to its ability to produce carcinogenicity (ATSDR, 2002). It isalso unknown whether ammonia exposure causes birth defects or if ammonia can pass throughthe placenta to a fetus or pass to infants via breast milk. However, decreased egg productionand conception rates have been observed in animals, and ammonia has been shown to crossthe ovine placenta! barrier (ATSDR, 2002).

Agency for Toxic Substances and Disease Registry (ATSDR). 2002. Managing HazardousMaterials Incidents. Volume III - Medical Management Guidelines for Acute ChemicalExposures: Ammonia. U.S. Department of Health and Human Services, Public Health Service.

Agency for Toxic Substances and Disease Registry (ATSDR). 2004. Toxicological Profile forAmmonia. U.S. Department of Health and Human Services, Public Health Service.

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