ENVIRONMENTAL MONITORING WORK PLAN · properties to the north of the Hurley property, ... occupied...

ENVIRONMENTAL MONITORING WORK PLAN NORWOOD PCB SUPERFUND SITE NORWOOD, MASSACHUSETTS

PREPARED ON BEHALF OF: The Norwood PCB Superfund Site Remediation Trust Norwood, Massachusetts

AMENDED: April 2010 To Reflect Site Redevelopment by JDN Real Estate – Norwood, LLC

PREPARED BY: GZA GeoEnvironmental, Inc. Norwood, Massachusetts

April 2010 File No. 18605.00

Copyright© 2010 GZA GeoEnvironmental, Inc.

http:18605.00

ENVIRONMENTAL MONITORING WORK PLAN

NORWOOD PCB SUPERFUND SITE

NORWOOD, MASSACHUSETTS

Prepared by: William Davis Project Engineer

Reviewed by: ________________________ Russell B. Parkman, P.E. Senior Project Manager

________________________ Albert J. Ricciardelli, P.E., LSP Principal-In-Charge

________________________ Patrick F. Sheehan, P.E. Consultant Reviewer

TABLE OF CONTENTS

Page

1.00 INTRODUCTION 1

1.10 SITE LOCATION AND DESCRIPTION 1

1.20 REMEDIAL ACTION 2

1.30 PURPOSE 4

2.00 GROUNDWATER SAMPLING PROGRAM 4

2.10 GROUNDWATER SAMPLING OBJECTIVE 4

2.20 GROUNDWATER SAMPLING PROGRAM 5

2.30 SAMPLE COLLECTION METHODOLOGY 5

3.00 MEADOW BROOK SEDIMENTS AND SURFACE WATER 6

4.00 DATA INTERPRETATION AND REPORTING 6

4.10 DATA INTERPRETATION TECHNIQUES 6

4.20 REPORTING 7

5.00 REFERENCES 7

TABLE

TABLE 1 ANALYTICAL DATA QUALITY OBJECTIVES

FIGURES

FIGURE 1 SITE LOCUS PLAN FIGURE 2 SAMPLING LOCATION PLAN

APPENDICES

APPENDIX A STANDARD OPERATING PROCEDURES APPENDIX B MONITORING WELL CONSTRUCTION LOGS

1.00 INTRODUCTION

This revised Environmental Monitoring Plan (EMP) has been prepared for the Norwood PCB Superfund Site in Norwood, Massachusetts. This Plan describes the activities that will be performed by GZA GeoEnvironmental, Inc. (GZA) on behalf of the Norwood PCB Superfund Site Remediation Trust to assess the protectiveness and performance of the Settling Defendants’ Remedial Action (RA) performed at the Norwood PCB Superfund Site (the Site). The Plan has been revised to reflect Site conditions following recent redevelopment activities.

This EMP has been prepared in accordance with Section IV-F 2 of the Statement of Work (SOW) for the Site.

1.10 SITE LOCATION AND DESCRIPTION

The Norwood PCB Superfund Site (the Site), as defined by the 1989 Record of Decision (ROD) which was subsequently amended on May 17, 1996, encompasses approximately 26 acres in an industrial/commercial area in Norwood, Massachusetts. The Site extends north to Meadow Brook, east to U.S. Route 1 and the Dean Street Access Road, south to Dean Street, and west to Pellana Road, and includes the portion of Meadow Brook located between the Hurley Property1 and the Dean Street culvert. The Site consists of several parcels of land including the Hurley property, residential properties to the north of the Hurley property, several properties on Kerry Place (excluding Lots 12 and 13), and adjacent parking areas and fields. The Site Locus plan is provided in Figure 1.

The Hurley property (referred to as the “Property” or “on-Property”) comprises approximately 8.6 acres of the Norwood PCB Superfund Site. The Property, formerly occupied by the Grant Gear building and adjacent paved parking areas, was used from the 1940’s through 1979 to manufacture electronic equipment and from 1979 to 1994 to manufacture gears.

Investigations performed on Site between 1983 and 1996 indicated elevated levels of polychlorinated biphenyls (PCBs) in several media on the Site. They are as follows:

• Surficial soils on-Property; • Subsurface soils on-Property; • Sediments in the adjacent Meadow Brook; and • Portions of the former Grant Gear building.

1 The subject property, formerly owned by John Hurley, has been sold since work began at the Site; however, for consistency with previously submitted reports, we will continue to refer to the subject Property as the Hurley property.

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In addition, the investigations identified a localized area on the west side of the Property contaminated with 1,2,4-trichlorobenzene (1,2,4-TCB) in the saturated zone soil. The identified PCB and 1,2,4-TCB contamination was addressed under the RA performed on Site.

In May of 2008, construction began for retail development on the Site and was completed in November of 2008. The development consists of a one-story retail building in the northern portion of the Site, and a one-story retail building in the eastern portion of the Site. Two one-story restaurants in the southern portion of the Site (on the former Reardon property) are proposed, but have not yet been constructed. Figure 2 shows a plan view of the new buildings, Cap areas and monitoring well locations. The retail buildings are located in the Cover and Non Cap/Cover areas. The restaurants are proposed to be located in the Non Cap/Cover area. The Cap area and portions of the Cover and Non Cap/Cover areas have been paved for parking. Landscaping for the Cover area utilizes a root barrier and drainage system which will restrict vegetation roots from contacting the Cover area material and drain water from within the landscaped area to the storm drain system. The Cap in place prior to construction was not altered or breeched. New pavement placed over the Cap is separated from the Cap with a marker barrier and drainage layer.

1.20 REMEDIAL ACTION

The amended ROD for the Site (dated May 17, 1996) requires performance of the following activities to mitigate risk associated with the identified contamination in soil, sediment and building materials:

• Demolition of the Grant Gear building with on-Site and off-Site disposal and recycling of building materials (completed January 1997).

• Removal of certain contaminated sediments from Meadow Brook and the Dean Street culvert, with excavated sediments consolidated on-Property (completed August 1997).

• Excavation and on-Property consolidation of certain contaminated soils from the Site (completed December 1997).

• Excavation of the 1,2,4-Trichlorobenzene (TCB) ‘hot spot’ from the saturated zone and relocation in the overlying unsaturated zone.

• Capping and covering certain on-Property areas (completed mid 1998). An asphalt cap has been placed over certain areas containing PCB-impacted soils and building materials, and a cover has been placed over areas excavated during the soil phase of the RA.

• Closure of an on-Property underground storage tank (UST). A second UST identified during the RA was also addressed.

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GZA commenced remedial activities on the Hurley Property in late 1996. The first phase of the RA included demolition of the Grant Gear building, consolidation and containment of selected contaminated building materials within the subsurface boiler room and placement of a structural cap over the boiler room. This phase also included stockpiling of certain materials for eventual placement beneath the asphalt cap and cover areas constructed during the Soil/Brook Remediation phase of the RA at the Site. A significant portion of the Soil/Brook Remediation phase of work was conducted in 1997. The activities completed during the 1997 phase of the soil/brook remediation included excavation of Meadow Brook sediments to the grades established in the Army Corps of Engineers’ (ACOE) brook restoration plans and specifications dated March 1996, excavation of on-Property PCB-impacted soils and consolidation of excavated materials on-Property. Construction of the asphalt cap and dense grade cover was completed during the summer of 1998 concluding the construction phase of the RA. Punch list items were completed between July 30, 1998 and May 2, 2002. The work was conducted in accordance with the Remedial Action Work Plan (RAWP) and the associated Project Operations Plan (POP).

At 921, Inc.'s (i.e., the property owner’s) direction and with EPA's approval, certain redevelopment activities, including the installation of a Cape Cod berm, and the installation of asphalt paving in Cover and non-cap/non-cover areas were not performed by GZA. In order to satisfy the MADEP’s Stormwater Management Policy requirements, some redevelopment activities were subsequently performed by the Site owner – a portion of the asphalted area was extended to tie into nearby catch basins and berms were installed to direct sheet flow. The design for this work was prepared by Toomey-Munson and Associates (TMA) and was reviewed and approved by USEPA. A copy of the design plan is provided in Appendix A of the November 2004 O&M plan. The work was completed in August, 2000 and was inspected by USACE, according to USEPA, and found to be acceptable.

In May of 2008, construction began for retail development on the Site. The Site work portion of the development was substantially completed in November 2008. The development consists of a one-story retail building in the northern portion of the Site, and a one-story retail building in the eastern portion of the Site. Two, one-story restaurants in the southern portion of the Site (on the former Reardon property) are proposed, but have not yet been constructed. A number of the Site groundwater monitoring wells were either closed or relocated to accommodate the development. Figure 2 shows a plan view of the new buildings, Cap areas and monitoring well locations. The retail buildings are located in the Cover and Non Cap/Cover areas. The restaurants are proposed to be located in the Non Cap/Cover areas. The Cap area and portions of the Cover and Non Cap/Cover areas have been paved for parking. Landscaping for the Cover area utilizes a root barrier and drainage system which will restrict vegetation roots from contacting the Cover area material and drain water from within the landscaped area to the storm drain system. The Cap in place prior to development was not altered or breeched. New pavement placed over the Cap is separated from the Cap with a marker barrier and drainage layer.

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1.30 PURPOSE

In accordance with the requirements of the SOW, this revised EMP has been developed to describe the necessary monitoring of groundwater, surface water and sediments to assess the protectiveness and performance of the Settling Defendants’ Remedial Action and to demonstrate conformance and compliance with the Performance Standards.

As described above, and detailed more fully in the RAWP, the Settling Defendants’ Remedial Action involves consolidation and capping of soil with elevated concentrations of PCBs.

Additional significant impacts to surface water and Meadow Brook sediments would occur if the cap were breached and the PCB-impacted soils were to erode into the brook, or if PCB concentrations in the groundwater were to increase, leading to potential migration of PCBs to surface water. Thus, visual monitoring of the cap, the cap covering and the cover will be performed and used to demonstrate that the other Site media are not being impacted. This visual monitoring is described in the OMP for the Site. As described in this EMP, groundwater monitoring will be performed to confirm the PCB’s are not migrating in groundwater. In addition, surface water and sediment sampling for PCB’s will be conducted on a bi-annual basis as part of this revised EMP to support EPA’s periodic reviews of the remedy.

As requested by the EPA in order to provide for periodic review of the remedy, GZA will analyze groundwater samples for the following VOCs: chlorobenzene, 1,2-dichlorobenzene, 1,3-dichlorobenzene, 1,4-dichlorobenzene, 1,2-dichloroethene (total), 1,1,2,2-tetrachloroethane, tetrachloroethylene, 1,2,4-trichlorobenzene, 1,1,1-trichloroethane, 1,1,2-trichloroethane, trichloroethylene and vinyl chloride. The detected concentrations will be compared statistically to site-specific Risk Based Action Levels (RBALs) and to historical levels.

This revised EMP outlines GZA’s groundwater monitoring program for the Site, including monitoring wells to be sampled, monitoring frequency and analytical parameters.

2.00 GROUNDWATER SAMPLING PROGRAM

The SOW for the Site requires that groundwater monitoring be conducted to assess the protectiveness and performance of the RA for the Site. In accordance with these requirements, GZA will conduct a groundwater sampling program at the Site.

2.10 GROUNDWATER SAMPLING OBJECTIVE

The objective of the groundwater sampling program is to monitor PCB levels in Site groundwater as an indicator of the effectiveness of the RA in limiting the movement of PCBs in the saturated zone. The performance standards for the soil and sediment under the RA are for attaining threshold concentrations of PCBs in these media at the Site.

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Thus, the focus of the Performance Standards is to mitigate identified risks associated with PCBs in soil and sediment. Additionally, the purpose of monitoring VOC levels in Site groundwater is to evaluate the effectiveness of the relocation of the TCB “hotspot” through a comparison with the site specific RBAL for 1,2,4-trichlorobenzene in site groundwater.

2.20 GROUNDWATER SAMPLING PROGRAM

GZA’s sampling plan has been designed to observe PCB and VOC levels in groundwater in different areas of the Site. Substantial redevelopment activities were conducted at the Site between the April and November monitoring rounds. The development included the construction of two buildings and the addition of parking, curbing, and landscaping as previously discussed in Section 1.20 and shown on Figure 2. During these activities and as described in the EPA-approved Redevelopment Work Plan, dated October, 2006, certain monitoring wells at the Site were abandoned and destroyed, or relocated. GZA has selected six groundwater monitoring wells for sampling during our PCB monitoring program:

• MW-1A (screened from 5 to 15 feet); • MW-EW-11 (screened from 4.5 to 14.5 feet); (relocated) (as replacement for

MW-2A); • MW-3A-R (screened from 4.0 to 15.0 feet); • ME-10 (screened from 12 to 22 feet) (as a replacement for ME-11A); • ME-17(B-4) (screened from 5 to 15 feet) (relocated); and • B-28 (screened from 5 to 15 feet) (relocated).

The selected monitoring wells are shown on Figure 2. Well installation logs are provided in Appendix B.

In addition, as requested by the USEPA and discussed in Section 1.30, GZA will analyze samples collected from these wells for VOCs.

Samples will be submitted to the GZA Environmental Chemistry Lab (ECL) for PCB analysis via EPA Method 8082 (Extraction Method 3510). The VOC samples will be submitted to the ECL for analysis via EPA Method 8260B, including for 1,2,4-TCB.

GZA will sample the selected groundwater monitoring wells semi-annually in the spring and fall. GZA will provide EPA 7 day notice prior to sampling.

2.30 SAMPLE COLLECTION METHODOLOgy

Groundwater sampling will be performed in accordance with the Standard Operating Procedures (SOPs) included as Appendix A to this document. Groundwater samples will be collected via the USEPA Region I Low Flow Sampling Technique, as described in SOP 3.1.1.2. The aqueous samples will be collected in the appropriate jars and stored at 4oC until analysis. The samples will be handled, stored and labeled in accordance with

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the SOPs and Table 3 of the Quality Assurance Project Plan (QAPP) for this work. Analytical data quality objectives are included in Table 1 of this EMP.

Groundwater removed from the wells during well development and sampling will be allowed to recharge to the subsurface in accordance with the Massachusetts Contingency Plan (MCP).

3.00 MEADOW BROOK SEDIMENTS AND SURFACE WATER

The remedial actions for Meadow Brook involved the excavation and removal of certain sediments from the brook bottom and banks. The Performance Standards outlined in Section IV of the SOW required that GZA remove brook sediments to the grades established in the ACOE plans and specifications for the Site. The ACOE was responsible for restoration of the brook including covering remaining sediments with rip-rap and interlocking concrete blocks. With the completion of the remedial activities and ACOE brook restoration program, the potential risk associated with direct exposure to the sediments has been mitigated.

As directed by EPA, GZA will collect surface water and sediment samples from three locations in Meadow Brook. Samples will be collected during the fall sampling round for even numbered years (i.e., every twenty-four months). Surface water and sediment samples will be collected using the sampling procedures specified in SOPs 3.1.3 and 3.1.8 in Appendix A. Sediment and surface water samples will be collected from the approximate center-line of Meadow Brook at the locations shown on Figure 2. The sediment samples will be collected from the top foot of sediment and surface water samples will be collected from the top six inches of the Brook.

Samples will be submitted to the GZA Environmental Chemistry Lab (ECL) for PCB analysis via EPA Method 8082 (with extraction Method 3510 for the sediment samples).

4.00 DATA INTERPRETATION AND REPORTING

4.10 DATA INTERPRETATION TECHNIQUES

GZA will tabulate the semi-annual groundwater and bi-annual surface water and sediment analytical results and compare them to previously collected GZA data and data provided electronically by EPA for those sample locations and to the RBAL standards. GZA will note any trends and/or exceedances of the RBALs observed and discuss them in our annual groundwater monitoring report for the Site.

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4.20 REPORTING

GZA will prepare an annual report describing groundwater, surface water and sediment monitoring and operation and maintenance activities conducted during the previous year at the Site. The environmental monitoring portion of the report will include a presentation of the data collected for that year, a tabulation of the data, a comparison of the current data with previously collected GZA data and a discussion of the data and observed trends. The operation and maintenance portion of the report will include a summary of observations made during visual inspections of the cap/cover areas and a discussion of any corrective action taken. GZA will provide copies of the laboratory data sheets for every other semi-annual sampling round (i.e., those which occur between reports) within 30 days of receipt from the laboratory. Laboratory data sheets for the other semi-annual sampling rounds will be provided in the annual report and will not be provided separately.

5.00 REFERENCES

Crouch, E., L. Green, R. Lester, S. Zemba (1995). Clean-up Levels for the Norwood PCB Site - A Risk-Based Approach. Cambridge Environmental, Inc.

GZA (1997). First Submittal, Field Sampling Plan, Soil/Brook Remediation Phase, Norwood PCB Superfund Site, Norwood, Massachusetts. File No. 14076.50. February 1997.

GZA (1997). First Submittal, Quality Assurance Project Plan, Soil/Brook Remediation Phase, Norwood PCB Superfund Site, Norwood, Massachusetts. File No. 14076.50. February 1997.

GZA (1997). First Submittal, Remedial Action Work Plan, Soil/Brook Remediation Phase, Norwood PCB Superfund Site, Norwood, Massachusetts. File No. 14076.50. February 1997.

GZA (1997). First Submittal, Site Health and Safety Plan, Soil/Brook Remediation Phase, Norwood PCB Superfund Site, Norwood, Massachusetts. File No. 14076.50. February 1997.

GZA (2003) Final Submittal, Remedial Construction Report, Soil Brook Remediation Phase, Norwood PCB Superfund Site, Norwood, Massachusetts. File No. 14076.80. September 2003.

Massachusetts Department of Environmental Protection (1991). Standard References for Monitoring Wells, Section 4.6, Decommissioning of Monitoring Wells. January 1991.

U.S. EPA (1989a). Declaration of Record of Decision, Remedial Alternative Selection (September 29, 1989); and ROD Decision Summary, Norwood PCB Superfund Site, Norwood, Massachusetts. September 28, 1989. U.S. EPA, Region I.

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http:14076.80http:14076.50http:14076.50http:14076.50http:14076.50

U. S. EPA (July 30, 1996 Revision 2). United States Environmental Protection Agency Region I, “Low Stress (low flow) Purging and Sampling Procedure for the Collection of Ground Water Samples from Monitoring Wells.”

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Fi le No. 14076.50 2/24/2009

TABLE 1 ANALYTICAL DATA QUALITY OBJECTIVES

ENVIRONMENTAL MONITORING WORK PLAN Norwood PC B Superfund Site

Norwood, Massathusetts

Target List EPA Method Precision

%RSD

Accuracy

% Recovery

MCP-GW-3

Standards (DDb)

~queous

PQLs (Ppbl_

Volatile Organics Compounds

1,2,4· Trichlorobcnzcne 8260B 0-25 70-1 30 500 1.0

Chlorobcn7.cne 8260B 0-25 70-130 500 1.0

I 2·Dichlorobenzene 8260B 0-25 70-1 30 8,000 1.0

IJ· Dichlorobcnzene 8260B 0-25 70-1 30 8,000 1.0

1,4·Dichlorobcnzene 8260ll 0-25 70-130 8,000 1.0

cis· I,2.I)iehlorocthene 8260B 0-25 70- 130 50,000 1.0

trans· I 2·Dichlorocthenc 8260B 0-25 70-1 30 50000 1.0

I 1,2.2-Tetmchloroethanc 8260B 0-25 70- 130 20,000 1.0

Tetrachloroethcne 8260B 0-25 70-130 5,000 1.0

III-Trichloroethane 8260B 0-25 70-130 50,000 1.0

1.12-Trich lorocthane 8260B 0-25 70-130 50000 1.0

Trichlorocthcne 8260B 0-25 70- 130 20000 1.0

Viny l Chloride 8260B 0-25 70-140 40,000 2,0

Surro~ate s:

12-Dich loroethanc 8260B -- 76-115 -- ---Toluene 8260B -- 88-115 -- --4-Bromofluorobenzene 8260B -- 86-115 -- --Matrix Spike:

l , l-Dichloroethene 8260B 0-20 60-120 -- --Trichloroethane 8260B 0-20 70-1 30 -- --Toluene 8260B 0-20 70-1 25 -- --Polych/orina/ed Biphenyls (PCBs)

Arodor 1262 8082 0-50 -- 0.3 0.2 Aroelor 1260 8082 0-50 8- 127 OJ 0.2 Aroelor 1254 8082 0-50 29-131 0.3 0.2

Aroelor 1248 8082 0-50 38- 158 0.3 0.2

Aroelor 124211016 8082 0-50 39-1 50 0.3 0.2

Aroclor 1232 8082 0-50 10-2 15 0.3 0.4

Aroelor 122 1 8082 0-50 15-178 0.3 0.2

Surrogates:

Tetrachloro-m-xylene 8082 - - 60-130 --- --f)ibutvlchlorendate 8082 -- 60- 130 -- -- Matrix Spike:

Aroclor 1254 8082 0-42 I 29-1 31 -- ---NarES' 1. Two surrogates are added to the samples due to possible interferences; only one surrogate percent

rC(:overy is required to be reported. 2. PQLs = Practical Quantitation Limits 3. Please note that the PQLs can increase based on percent water content and/or dilution factors .

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APPENDIX A

STANDARD OPERATING PROCEDURES

NORWOOD PCB SUPERFUND SITE STANDARD OPERATING PROCEDURE

Date: 02/10/97 - Revision No. 0 NW SOP No. 3.1.1 .1

SAMPLE COLLECTION - GROUNDWATER MONITORING WELLS

PURPOSE

To obtain liquid samples for PCB analysis to assess the quality of the groundwater at the sampling location.

EQUIPMENT AND MATERIALS

• Appropriate sample containers

• Stainless steel submersible pump

• Generator

• Stainless steel or teflon bailers

• Sampling cable

• Water level indicator

• Steel tape with weighted end

• Litmus paper or a pH meter or probe, conductivity meter, thermometer

• Rags or paper towels

• Cooler and ice

Additional equipment and materials such as field screening equipment, filtering equipment, etc., may be needed for particular sampling rounds.

PROCEDURES

1. Measure depth to groundwater to the nearest one hundredth foot (0.01') using electric water level indicator. If reliable information on well construction is not available, measure total

Copyright© 1997 GZA GeoEnvironmental, Inc. Page I of 4


Date: 0211 0/97 - Revision No. 0 NW SOP No. 3.1.1.1

well depth to the nearest one-tenth-foot (0.1 ') from the top of the riser pipe using tape with weighted end. The existing volume of standing water in each well should then be calculated based on the well construction information.

2. Prior to sample collection, remove at least three times the volume of standing water from the monitoring well. Remove additional purge volume(s) until measured levels of conductivity, pH and temperature have stabilized within ten (10) percent of each other. Wells will be pumped and sampled using one of the following methods:

a. For shallow, small diameter wells (calculated purge volumes of less than 10 gallons), bail the required volume of standing water with a decontaminated, stainless-steel bailer of known volume. After purging the well, transfer the sample from the bailer directly into the sample container. Water samples will be transferred by pouring along the side of the container to limit turbulence. Cap and seal the sample container.

b. For deep or large diameter wells (estimated purge volumes in excess of 10 gallons), purge the required volume of standing water from the well using a stainless-steel submersible pump as follows:

I. Lower the pump to approximately one to three feet (1'-3') above the bottom of the well. Pump the water from the well using dedicated five-eighths-inch (5/8") 0.0. polyethylene tubing of the appropriate length.

11. After purging the required volume of water, reduce the flow from the pump and transfer the sample directly from the end of the tubing into the sample container. Water samples will be poured along the side of the container to limit turbulence. Cap and seal the sample container.

Ill. Remove the tubing from the well, label, and store for the next sampling round. Store each length of tubing in a separate, labeled, dedicated box.

3. Periodically, during each well purging and at sample collection, measure the pH, conductance and temperature of the pumped or bailed groundwater using a pH probe and conductivity meter.

Copyright© 1997 GZA GeoEnvironmental, Inc. Page 2 of4


Date: 02/10/97 - Revision No. 0 NW SOP No. 3.1.1.1

4. If a well is pumped and/or bailed dry, remove the sampling equipment and allow the well to recover. Sample the well when it has recovered to eighty percent (80%) of the original piezometric water level on the same work day as it was purged, or sample the well on the following work day. In no instance allow more than twenty-four (24) hours to pass from the time the well is pumped or bailed dry until it is subsequently sampled.

5. Label, preserve, store and ship the sample(s) in accordance with appropriate protocols. Labeling, storage and shipment of the samples shall be done in accordance with the NW SOP No. 3.2.1, NW SOP No. 3.2.2, NW SOP No. 3.2.3 and NW SOP No. 3.2.4. Samples should be preserved in accordance with Table 3 of the QAPjP. In general, the sample preservatives will be placed in each container at the laboratory prior to being sent to the field. However, if necessary, samples are to be preserved in the field according to the procedures outlined for the EPA method by which the sample is to be analyzed.

RECORDS AND DOCUMENTATION

I . Data collected shall be recorded in a field book in accordance with standard GZA protocol and the requirements given in the Environmental Monitoring Plan.

2. Samples collected shall be collected, labeled, stored and shipped in accordance with the Environmental Monitoring Plan.

3. Data and sampling information will be recorded in accordance with NW SOP No. 3.2.1., Chain-of-Custody Record Keeping.

SPECIAL NOTES

I. Field activities are to be completed in accordance with the requirements of the Health and Safety Plan.

2. Generated waste is to be handled in accordance with the requirements of the Environmental Monitoring Plan.

3. Pumps used to purge and sample the well should either be dedicated to the well (i.e., extraction pumps) or decontaminated according to NW SOP No. 6.20, Decontamination of Hand Tools, Sampling and Monitoring Equipment. Equipment or



Date: 02/10/97 - Revision No. 0 NW SOP No. 3.1.1.1

decontamination blanks should be collected between monitoring wells as required by the project QAlQC requirements contained in the QAPjP.

APPLICABLE REFERENCES AND STANDARDS

I. Revised Environmental Monitoring Plan, Norwood PCB Superfund Site, Norwood, Massachusetts.

2. Quality Assurance Project Plan for Environmental Monitoring and Operation and Maintenance, Norwood PCB Superfund Site, Norwood, Massachusetts.

3. Health and Safety Plan for Environmental Monitoring and Operation and Maintenance, Norwood PCB Superfund Site, Norwood, Massachusetts.

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Date: 2/24/09 - Revision No.3 NW SOP No. 3.1.1.2

SAMPLE COLLECTION - GROUNDWATER MONITORING WELLS LOWSTRESS (LOW FLOW) PURGING AND SAMPLING

PURPOSE

Low flow purging and sampling is used to collect groundwater samples that are indicative of mobile organic and inorganic loads at ambient flow conditions. This state is attained through a low water-level drawdown and low pumping rate (usually less than 1 liter/min). Samples obtained using this procedure are suitable for groundwater analysis for VOCs, SVOCs, pesticides, PCBs, metals and other inorganics and other naturally occurring analytes.


• YSI Multi Probe System (MPS) equipped to measure and/or record temperature, pH, dissolved oxygen (DO), oxidation reduction potential (ORP) and specific conductivity (SC). The system kit should also include a flow through cell with changeable port fittings.

• A turbidity meter;

• Variable speed water sampling pump; usually a peristaltic pump, Whale pump with flow rate control or a Grundfos pump with flow rate control. The type of pump required will vary based on Site depth to groundwater.

• Water level indicator and weighted measuring tape;

• Tubing -- types and quantity will vary based on pump type and depth to groundwater;

• Battery pack for peristaltic pump or gasoline powered electrical generator capable of powering a Whale or Grudnfos pump where applicable;

• Low flow data collection sheets;

• Heavy duty extension cord -- at least 100 feet (if using Whale or Grundfos);

• Decontamination supplies (lab-grade detergent, water and laboratory grade methanol);

• 5- gallon buckets;

• Cooler container with ice;

Copyright© 2009 GZA GeoEnvironrnental, Inc. Page 1 of4



• Appropriate sample containers as required by the QAPP;

SAMPLING PROCEDURES

I . Measure the static depth to water of all the wells to be sampled using the water level indicator as well as the depth to bottom using a weighted tape and record on low flow data collection sheets.

2. Place tubing and/or sampling pump in the monitoring well and set in the water column at a depth appropriate for Site contaminants. Measure the depth to water again to account for tubing/pump displacement and record on the data recording portion of the data collection sheet

3. Assemble the YSI and flow through cell. Note: When attaching tubing to the flow through cell, the bottom port is for influent and the top port is for effluent.

4. Start pump at low rate and allow some water to purge from well prior to attachment to the flow through cell. If large amounts of solids (silts, mud, etc.) are observed allow the well to purge until water is mostly clear. Large amounts of solids could potentially coat the YSI probes possibly causing inaccurate readings.

5. Once the water is suitably clear begin pumping and allow the flow through cell to fill and for effluent to flow out. Once flow for the cell is established begin recording readings for temperature, pH, SC, DO, ORP, Turbidity and depth to water. Turbidity data should be collected with a separate turbidity meter even if the YSI is equipped with a turbidity probe. Readings should be recorded every 2 to 5 minutes on a low flow data collection sheet until stabilization.

6. A well is considered stabilized and samples may be collected once three consecutive readings are within the following limits:

Temperature: +/- 3% ORP: +/- IO millivolts

pH: +/- 0.1 units Turbidity: +/- 10% for values greater than I NTU

DO: +/-10% Depth to Water:

Specific Conductance: +/- 3%

Do not shut off the pump upon achieving stabilization, allow the pump to continue running until completion of sampling.




7. When well has stabilized and is ready to be sampled disconnect the tubing from the influent port and use it to fill sample collection vials. Collect VOC samples first into pre-preserved containers. All sample containers should be filled by allowing the pump discharge to flow gently down the inside of the container with minimal turbulence.


I. Data collected shall be recorded in a field book in accordance with standard GZA protocol and the requirements given in the Environmental Monitoring Plan.

2. Samples collected shall be collected, labeled, stored and shipped in accordance with the Revised Environmental Monitoring Plan.

3. Data and sampling information will be recorded in accordance with NW SOP No. 3.2.1., Chain-of-Custody Record Keeping.

SPECIAL NOTES

I. Since YSI's use liquid media in the probes they are susceptible to cold weather problems. When not in use YSI's should not be left for long periods of time in freezing temperatures as the liquid media can freeze resulting in probe malfunction.

2. According to EPA' s low flow procedure achievement of turbidity levels ofless than 5 NTU and stable drawdown ofless than OJ feet are not mandatory.

3. Notes on variations or irregularities in stabilization parameters should be recorded on both the data collection sheet and in a field book.

4. Current YSI's have interference problems with built in turbidity meters which may yield inaccurate turbidity data.


I. Revised Environmental Monitoring Plan, Norwood PCB Superfund Site, Norwood, Massachusetts.




2. Quality Assurance Project Plan for Environmental Monitoring and Operation and Maintenance, Norwood PCB Superfund Site, Norwood, Massachusetts.

3. Health and Safety Plan for Environmental Monitoring and Operation and Maintenance, Norwood PCB Superfund Site, Norwood, Massachusetts.

4. Dunlap, N.J.; McNabb, J.F.; Scalf, M.R.; and Crosby, R.L., "Sampling for Organic Chemicals and Microorganisms in the Subsurface," EPA-600/2-77-l6, August 1977.

5. United States Environmental Protection Agency Region I, "Low Stress (low flow) Purging and Sampling Procedure for the Collection of Ground Water Samples from Monitoring Wells." United States Environmental Protection Agency. July 30,1996 Revision 2.

J:117.000·18.999118605118605-00.STP\O&M\Revised EMP 20091S0P3112revised.DOC


Date: 8/30104 - Norwood PCB Revision No. 1 Standard Operating Procedure No. 3.1.3

SAMPLE COLLECTION - SURFACE WATERS

PURPOSE

To obtain liquid samples for analyses that are representative of environmental conditions at the location sampled.


• Appropriate sample containers • Pond sampler with disposable sampling containers • Peristaltic pump with associated tubing • Rags or terry cloths

PROCEDURES

a. Approach the sampling point from downstream, submerge the sample container to the required depth upstream of yourself and remove it after complete filling.

b. Cap and seal the container

c. Rinse and wipe off the exterior of the container with clean paper towels.

d. Label, preserve, and store the sample in accordance with appropriate protocols.

Note: This method cannot be employed with prepreserved containers. Appropriately cleaned containers without preservative can be used to collect the sample for transfer to the preserved containers in this case.


All data and sampling information will be recorded as specified in the Quality Assurance Project Plan.

SPECIAL NOTES

1. Required depth for surface water sampling will be one-half the total depth of the water body (mid-depth) unless otherwise specified.

Copyright© 2004 GZA GeoEnvironmental, Inc. 1

Date: 8/30/04 - Norwood PCB Revision No. 1 Standard Operating Procedure No. 3.1.3


deVera, E.R.; Simmons, B.P.; Stephens, R.D.; and Storm, D.L., "Samplers and Sampling Procedures for Hazardous Waste Streams," EPA-600/2-80-018, January 1980.

U.S. Environmental Protection Agency, "Procedures for Groundwater Monitoring at Solid Waste Disposal Facilities. EPA-530/SW-611 , August 1977.

Ford, J.1.; Turina, P.1.; and Seely, D.E., "Characteriza- tion of Hazardous Waste Sites - A Methods Manual, Volume II, Available Sampling Methods, EPA 600fX-83-018, March 1983.


Date: 8/30104 - Norwood PCB Revision No.1 Standard Operating Procedure No. 3.1.8

SAMPLE COLLECTION - STREAM SEDIMENTS

PURPOSE

Sediment samples underlying water bodies are collected to describe the physical characteristics of the sediment or to investigate contamination in the sediments.

MATERIALS AND EQUIPMENT

• Appropriate sample containers • Pond sampler with disposable collection jars • Stainless steel laboratory spoon • Stainless steel or polypropylene tray • Clean rags or terry cloths • Three-quarter-inch (3/4") nylon line

PROCEDURES

1. Position yourself downstream of sample collection point.

2. Assemble pond sampler by attaching a polypropylene collection jar to the end and extending the handle to the required length.

3. Insert the sampler through the overlying water with the collection jar facing downward.

4. When contact with the sediment is felt, rotate the sampler one hundred and eighty degrees (180°) while exerting downward pressure to obtain a sample.

5. Slowly withdraw the sampler and place the sample in a stainless steel or aluminum tray.

6. Transfer the sample to an appropriate sample container using a stainless steel laboratory spoon.

7. Cap and seal the sample container.

8. Wash the sample tray with methanol and distilled water and wipe it down with clean paper towels.

9. Remove the collection jar from the sampler and place it in a trash bag for subsequent


Date: 8/30104 - Norwood PCB Revision No.1 Standard Operating Procedure No. 3.1 .8

Method C - Grab Sampler

This methodology will be utilized in water depths exceeding three feet (3').

I. Attach a pre-cleaned Ponar or Eckman grab to an appropriate length of three-quarter-inch (3/4") nylon line.

2. Open grab jaws and set the release mechanism. Keep tension on nylon line to prevent premature tripping of the jaws.

3. Slowly lower the grab through the water column until contact with the sediment is felt.

4. Allow nylon line to slack approximately one-foot (1 '), then slowly remove the slack and raise the grab to the surface.

5. Place the grab in a stainless steel or polypropylene tray, open the jaws to release the sample, and remove the grab from the tray.

6. Transter the sample from the tray to a suitable sample container using a stainless steel laboratory spoon.

7. Cap and seal the sample.

8. Flush the grab with clean water to remove any residual sediment.

9. Wash the sample tray with methanol and distilled water and wipe it down with clean paper towels.


Samples will be labeled, preserved, and stored in accordance with the Quality Assurance Project Plan.

SPECIAL NOTES

None


Date: 8/30104 - Norwood PCB Revision No. I Standard Operating Procedure No. 3.1.8

APPLICABLE STANDARDS AND REFERENCES

Ford, PJ.; Turina, PJ.; and Seely, D.E., "Characterization of Hazardous Waste Sites - A Methods Manual," Volume II - Available Sampling Methods, EPA 600/S-83-018, 1983.


APPENDIXB

MONITORING WELL CONSTRUCTION LOGS

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PROJECT NO.' DI'5x>. ,.l!I.::J)!.

, NO.: mW-IA LOCATION: NorwQoQ, mA

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ELEVATION 1 DEPTH

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See Exploratio n Location Plan Hammer Fall Datum Other

]

No, Pen} Ree. ~~~~h Blowsl6~

Field Test Data

.-

Norwood PCB Superfund Site Page No. I of I FileNo. 14076.7

Norwood. Massachusetts Checked By: PFS

COS;" S,mp]" G , Rood;."

D,,,~ N/A T;m, D,Plh cos;", S"h. T;m,

N/A N/A

~ ~14 " PVC

StratumSample ~ & Classification S ICos;o,

~.',~'"OVERBURDEN SOILS ... - ; IJ (NO SAMPLES)

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Str.ltilicalion lines represent approximate btM.mtlam::~ t>c:twttn suiltypc:s. lransltlufiS may he gr.lduaJ. WOller level readings have been madc a(limes :1lld under conditions sl:ILcd .

FlUC1ualions vr !!,foondwalcr In;Jy (Io,:.:ur due In facUlrs other Ih;m tht~ pre\iCnt aL the Lime meiDurements were made.

Fielu testing results represent IUlJl IIl"gallu; vapor levc::ls. rcfcre!M;eu Ul a I!cnl.enc sLand:u-d. measured In the headspal;e of sealed soil sample j:ll"S usin.g:LII H·Nu Model PI 101

PhOloionll.aLiof1 :maIYl.cr. Results In pans per millh'lI (ppm). ND i ndl~Jles nuthlnll detc1;teU 1

~"~, .... BOONG No. E.W /INEW HAMPSHIRE BORI NG, INC. ~ 1215W. CHESTNUT ST.. BROCKTON, MA 02301 SHEET I OF'/H€IIf£L-f 8"IL7>E~S

ALE No, ..R..1"1 AJ., _uuj) CHKO. BY'".. BORING LOCA1lON

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SPOON DRIVEN USING A 110 1>. HAMMER FAlUNG 3D I, GROJ.,WWATER READINGS

DATE TIME WATER 'CASING STABIU"TlrY< TIME

,•, ; SAMPUE OESCRJPnOOSAMPlE N

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File No. 14076.7 ~eedham Street Norwood. Massachusetts Checked By: PFS on Upper Falls. Massachusetts 02164

ng LO. liLA u,i"in,. Ino. rutn Don Uunklee

Rep. NfA SUn 9f1}97 End 912197 ion See Exploration Location Plan

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A L Sample lnfonnation S 0 NW Pen} Depth a S No. Rec. (Fl.) BlowsW

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Hammer Fall

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Test Data

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NfA

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BO!lom 01 Ho,;ng '1 I,..

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all ficllon lines fepfescnl :appro)C imiIlC boundaries between $Oil lyflC$. tJ1lllsotions may be );lr;adual Wa,er IC" cl fe ad ll' ~ have been made al times and under condItions ruled

..;luiI,ions ('I f li ' Qu ndw81er may occur due to factors other than rho~ present 311ht ume meilsuremenlS were m~d e Id te$ting result s represent 'Ot:ll o, !',anlc Vilpor levels. refcrenced '0 . benzene Slandard. measured In tile headspace nf sealed soil sample j~ls usi,,!; an H·Nu Model PI· J01 )t(110nl.(';u ;00 analyter Rewl ts In pruu per milLion {ppm) NO ind icates nathln:; deteCied 1"''0 I ppm )

alA GenEn vironmenlal. Inc . G 114 076 008\1 4076.70 PFSIR!:: r ORTSIHORING LOCi\{0 0 87000B Xl.Sl1.0G:!:

new HAmpSHIRe BORinG

91912006

Themeli Builders

Norwood, Ma

Well#B28

D. Dunklee

grade fill 0 to-4

sand -4 to-6

bentonite -6 to -7 sand -18to-7 screen -18 to -8

~--rrc>~ - (~

I 2"PVC lroad box

-5

-10

-15

-20

-25

-30

1215 WEST CHESTNUT ST. , BROCKTON, MA 02301 TEL: (508) 584-8201 FAX: (508) 584-8206 www.nhboring.com

http:www.nhboring.com

new HAmpSHIRE BORinG

9/2/2008

Themeli Builders

Norwood, Ma

Well#ME10 J. Stokes

grade Fill 0 to-4

Bentonite -3.5 to -5 sand -5 to-6 screen -6 to -16

bottom-16

I

2"PVC Iroad box

-5

-10

-15

-20

-25

-30

1215 WEST CHESTNUT ST., BROCKTON, MA 02301 TEL: (508) 584-8201 FAX: (508) 584-8206 www.nhboring.com


new HAmpSHIRe BORinG

8/29/2008

Themeli Builders

Norwood, Ma

Well#B4 S. Bolduc

grade Fill 0 to-4

bentonite -4 to -5 sand -5 to-6 screen -6 to -16

bottom-16

I

2"PVC Iroad box

-5

-10

-15

-20

-25

-30

1215 WEST CHESTNUT ST., BROCKTON, MA 02301 TEL: (508) 584-8201 FAX: (508) 584-8206 www.nhboring.com


ÀÇ~�%C1.00 INTRODUCTION2.00 GROUNDWATER SAMPLING PROGRAM3.00 MEADOW BROOK SEDIMENTS AND SURFACE WATER5.00 REFERENCES

barcodetext: SDMS DocID 475827barcode: *475827*

ENVIRONMENTAL MONITORING WORK PLAN · properties to the north of the Hurley property, ... occupied...

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