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SDMS DOCID 2138517 OR'G/NAL

David Madeira FacUity Manager

GLENN SPRINGS HOLDINGS, INC. 375 Armand Hammer Blvd.. Pottstown. PA 19464

Telephone (610) 327-4174

February 9,2011

VIA OVERNIGHT COURIER

Mr. Tim Gallagher USEPA Regior> III MaUCall3HS21 1650 Arch Street Philadelphia, Pennsylvania 19103-2029

Re: Progress Report No. 185 - January 2011 Occidental Chemical Corporation Site Lower Pottsgrove Township • Montgomery County, Pennsylvania EPA Unilateral Order No. III-94-26-DC Adminishrative Settlement A^geement and Order on Consent CERC-03-2005-0090DC

Dear Mr. Gallagher:

This progress report is provided in accordance with Section XIII, A of the Administrative Order for the Remedial Design/Remedial Action and the Administrative Settlement Agreement and Order on Coixsent for Occidental Chemical Corporation's (OxyChem's) Pottstown facility.

1.0 PROJECT SCHEDULE

Table 1 presents the schedule and percent completion of the current remedial activities.

2.0 ACTIVITIES COMPLETED

2.1 GROUNDWATER:

i) The total and average monthly flows from the individual recovery wells are

summarized monthly for 2011 in Table 2. In January 2011, the average groundwater

pumping rate was approximately 193 gpm.

ii) On January 19, a larger drive was installed in RW-A capable of running up to 2

horsepower. On January 19, the RW-9A pump went down due to a high current

fault. The pump was removed and the motor leads were replaced on January 28,

solving the problem.

iii) The recovery wells were sampled as part of the PMP sampling event on January

25th. TetraTech collected split samples of several wells as part of this event. Due to

the late sampling date, the analytical results for the wells will be presented in the

next monthly report.

An affiliate of Occidental Chemical Corporation

AR300359

iv) The mass removal of contaminants of concern for the Groundwater Treatment

System (GWTS) during January will be presented in the next monthly report.

v) Attachment A presents groundwater contour maps for groimdwater level

measurements collected diuing January 2011 from all bedrock wells at the site. Wells

used in the contouring for each map are noted as blue dots.

vi) The Discharge Monitoring Report (DMR) for the Groimdwater Treatment System

(GWTS) (Outfall 005 in Permit #0010944) for January is presented in Attachment B.

The sample results for volatile organic compoimds (VOCs) for Outfall 005 were all

within the required limits.

3.0 PLANNED ACTIVITIES

i) GSHI is awaiting EPA's comments regarding the Interim Recovery Well

Optimization report to document monitoring data collected during Step 2B (the shut

down of RW-5).

4.0 OTHER ACTIVITIES

i) The voluntary pilot SVE system was shut down on January 15 imtil warmer weather.

Long periods below freezing temperatures are causing freezing of condensation in

the vacuum lines.

If you have any questions, please do not hesitate to call.

Sincerely,

David Madeira Facility Manager

.certify under penalty of law that this document and all ittachment^^ere prepared under my direction or supervision in accordance with a system designed to assure that qualified personnel gather and evaluate the information submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisorunent for knowing violations.

Attachment

cc: Thomas Sheehan, PADEP Ralph Boedeker, Tetra Tech NUS John Garges, CRA George Luxbacher, GSHI Richard Passmore, GSHI

AR300360

TABLE 1 - PERCENT COMPLETE OF RD/RA SCHEDULED ACTIVITIES PROGRESS REPORT NO. 185-JANUARY 2011

RD/RA Activity Percent

Complete

100

100

100

100 100

100 100 100 100 100 100 100 100 100 100 100 100 100 100

100

100 100 100 100

100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100 100

Expected Start

Monthly

—

—

—

—

— — — — — — — — — — —

. — —

—

—

— — —

— — — — — — — — — — — — — — — —

Expected Completion

—

—

—

— — — — — — — — — — — — —

—

—

— — —

— .._ — — — — — — — — — — —

: —

Actual Completion

10th of month

Mar. 27, 2007

Sept. 2007

Dec. 2007

Dec. 20, 2007 June 25, 2008

July 28, 2008 Oct. 2, 2008 Oct. 21,2008 Oct. 2, 2008

Oct. 29, 2008 Jan. 2008

Feb. 19,2009 Apr. 2, 2009 May 2009

June 8, 2009 July 30, 2009

Nov. 2009 Dec. 2009 Feb. 2010

July 1,2010

July 2010 Aug. 2010 Nov. 2010

Dec. 16. 2010

Oct. 7, 2005 Aug. 11,2006 Dec 21, 2006 Mar. 30, 2007 May 25, 2007 Nov. 6, 2007 Feb. 20, 2008

Mar. 2008 June 2008

Sept. 26, 2008 Sept. 26, 2008 Nov. 24, 2008 Feb. 13,2009 Mar. 5, 2009

April 21, 2009 May 19, 2009 June 19, 2009

PROGRESS REPORT GROUNDWATER EPA Approval of Recovery Well (RW) Optimization Work Plan Revise O&M Manual to Add Post-Stripper Liquid Phase Carbon Treatment and Discharge Implement Step lA of RW Optimization (Shutdown RW-04 & reduce RW-06 flow rate by 50%) Submittal of Step lA RW Optimization Report EPA comments regarding the Step lA RW Optimization • Report Response to EPA conunents EPA follow-up comments on the Step lA Report Response to EPA comments EPA Approval to commence Step IB of RW Optimization Implement SVE System for 2008 Implement Step IB of RW Optimization (Shutdown RW-06) RW Optimization and PMP Groundwater Sampling Event Submittal of Step IB RW Optimization Report RW Optimization and PMP Groundwater Sampling Event EPA-approval for Step 2 of RW Optimization Response to EPA comments RW Optimization and PMP Groundwater Sampling Event Implement SVE System for 2009 Implement Step 2 A of RW Optimization (Reduce RW-05 flow rate by 50%) Implement Step 2B of RW Optimization (Complete shutdown of RW-05) Submittal of Step 2A Interim Status Report Conduct 3"* Quarter PMP groundwater sampling Conduct 4* Quarter PMP groundwater sampling Submittal of Step 2A Interim Status Report

EARTHEN LAGOONS AOC for FFS finalized EPA Approval of Final FFS Work Plan Identification of Candidate Technologies Memorandum Draft FFS Response to EPA Comments on FFS and Final FFS Report Submission of Remedial Design/Remedial Action Work Plan Response to EPA comments and Revised FFS Report EPA Review and Approval of FFS EPA Review and Approval of RD/RA Work Plan Remediation Receive Closure Approval firom EPA Final Inspection Post-Construction Report EPA comments on Post-Constraction Report Response to EPA comments on Post-Construction Report EPA Approval of Post-Construction Report EPA Final Inspection of Earthen Lagoons

AR300361

TABLE 2 AVERAGE GROUNDWATER PUMPING RATES

PROGRESS REPORT 185 - JANUARY 2011

Recovery Wells

RW-4 Pumoed Interval

RW-4

Subtotal, RW-4 Pumped Interval

RW-ABC Pumoed Interval

RW-A

RW-B

RW-C

RW-5

RW-8A

ISubtotal, RW-ABC Pumped Interval

RW-8 Pumoed Interval

RW-8

RW-9A

RW-lOA

Subtotal, RW-8 Pumped Interval

RW-6 Pumoed Interval

RW-6

RW-9

Subtotal, RW-6 Pumped Interval

I jo ta l Recovery Wells

January-11

Total Gallons (X r.OOO)

2,620

2,620

220

556

403

6

301

1,487

1,089

742

2,016

3,847

6

655

661

8,615

Average (gpm)

59

59

5

12

9

0

7

33

24

17

45

86

0

15

15

193

February-11

Total Gallons (X 1,000)

-

-

-

-

-

Average (gpm)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

March-11

Total Gallons (X 1,000)

-

-

-

-

-

Average (gpm)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

April-11

Total Gallons (X 1,000)

.

-

.

.

-

Average (gpm)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

May-11

Total Gallons (X 1,000)

.

-

.

-

-

Average (gpm)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

June-11 1

Total Gallons (X 1,000)

_

_

_

.

-

Average (gpm)

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

9904-05-PRGRPT-185-Table 2.xls page 1 of 1

AR300362

ATTACHMENT A

GROUNDWATER CONTOUR MAPS JANUARY 2011

AR300363

15 gpm.

25 gpm

105.63

80.51

Recovery well in RW-06 pumped interval and daily average pumping rate (red >MCL, blue <=MCL)

Recovery well not in RW-06 pumped interval and daily average pumping rate (not color coded)

Monitoring well in RW-06 pumped interval and groundwater elevation (red >MCL, blue <=MCL)

Monitoring well not in RW-06 pumped interval and groundwater elevation (not color coded)

RW-06 Pumped Interval Subcrop Area

Groundwater Elevation Contour (ft msl)

Notes: • River elevations at subcrops are estimated based

on an approximate river gradient. • Analytical data average of 2010 sampling events.

River -110.8

O X Y Glenn Springs Holdings

figure A.I

POTENTIOMETRIC SURFACE FOR THE RW-06 PUMPED INTERVAL: 1/4/2011 PROGRESS REPORT

^ ; ; GSH, Pottstown, Pennsylvania

AR300364

46 gpmd

6.7 gpm

104.70

80.51

Recovery well in RW-08 pumped interval and daily average pumping rate (red >MGL, blue <=MCL)

Recovery well not in RW-08 pumped interval and daily average pumping rate (not color coded)

Monitoring well in RW-08 pumped interval and groundwater elevation (red >MCL, blue <=MCL)

Monitoring well not in RW-08 pumped interval and groundwater elevation (not color coded)

RW-08 Pumped Interval Subcrop Area

Groundwater Elevation Contour (ft msl)

Notes: • River elevations at subcrops are estimated based

on an approximate river gradient. • Analytical data average of 2010 sampling events.

River -110.5

O X Y Glenn Springs Holdings

figure A.2

POTENTIOMETRIC SURFACE FOR THE RW-08 PUMPED INTERVAL: 1/4/2011 PROGRESS REPORT

z;::̂ GSH, Pottstown, Pennsylvania

AR300365

13 gpmg

46 gpm

94.66

105.63

200 400

O X Y Glenn Springs Holdings

River \ -114.0

Scale (feet)

^ ^ ™

110.91 H. ^ \ \ 0\^7A V) \ Tr2.48\

\ TB-10 \A

\ * \ \ T B - 1 2 \

\s, tJO.68 \

\ 112.62 \ . "̂"̂

SG-oa' 113.56

Recovery well in RW-ABC pumped interval and daily average pumping rate (red >MCL, blue <=MCL)

Recovery well not in RW-ABC pumped interval and daily average pumping rate (not color coded)

Monitoring well in RW-ABC pumped interval and groundwater elevation (red >MCL, blue <=MCL)

Monitoring well not in RW-ABC pumped interval and groundwater elevation (not color coded)

RW-ABC Pumped Interval Subcrop Area

Groundwater Elevation Contour (ft msl)

Notes: • River elevations at subcrops are estimated based

on an approximate river gradient. • Analytical data average of 2010 sampling events.

figure A.3

POTENTIOMETRIC SURFACE FOR THE RW-ABC PUMPED INTERVAL: 1/4/2011 PROGRESS REPORT

GSH, Pottstown, Pennsylvania

AR300366

ATTACHMENT B

DISCHARGE MONITORING REPORTS JANUARY 2011

AR300367

PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Facility Name / Location ifdiffcrent) DISCHARGE MONITORING REPORT (DMR)

PRIMARY FACILITY: OCCIDENTAL CHEMICAL GROUNDWATER REMEDUTION SITE

CLIENT: GLENN SPRINGS HOLDINGS, INC.

ADDRESS: SMS LBJ FREEWAY, STE 1350

DALLAS, TX 75244

SITE ADDRESS: 375 ARMAND HAMMER BOULEVARD

MUNICIPALITY: LOWER POTTSGROVE TOWNSHIP

COUNTY: MONTGOMERY

Parameter

FLOW

pH

TLTKACHLOROETHENE

TRANS-1,2-DICHLORblHENE

CIS-1,2-DICHLOROETHENE

CHLOROFORM

TRICHLOROETHENE (TCE)

ETHYLBENZENE

Sample Measuremcni

Pcniiit Requirement

Sample Mcasurcnicnl

Pennit Requirement

Sample Measuremcni

Permit Requirenienl

Sample Measurement

Pennit Rcquircincnt

Sample Measuremcni

Permit Rcquiicineni

Sample Measuremcni

Pcmiit RequirenKnt

Sample Measurement

Penmil Requirement

Sample Measuremcni

F Req

NAMErtTTLE PRINCIPAL EXECUTIVE OFRCER

GEORGE LUXBACHER VP OPERATIONS-GSHI

TYPE OR PRINT

'ermit uircment

PA0010944 PERMIT NUMBER

005

DISCHARGE NUMBER

MONITORING PERIOD

YEAR

2011

MO

01

DAY

01

QUANTITY OR LOADING

MONTHLY AVERAGE

0.2856

MONITOR/REPORT

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

DAILY MAXIMUM

0.3331

MONITOR/REPORT

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

UNITS

iiigd

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

TO YEAR

2011

MO

01

DAY

31

Sou theas t Region

Facsimile •

NOTE: Rend iiLslructioiis hcfnrc completing this form

QUALITY OR CONCENTRATION

INST. MINIMUM

XXXX

XXXX

7.64

6.0

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX 1 CERTIFY UNDER PENALTY OF LAW THAT 1 HAVE PERSONALLY EXAMINED AND AM FAMILIAR WITH THE INFORMATION SUBMnTED HEREIN AND BASED ON M y INQUIRY OF THOSE INDIVIDUALS IMMEDIATELY RESPONSIBLE FOR OBTAININCJ THE INFORMATION. I BELIEVE THE SUBMITTED INFORMATION IS TRUEV ACCURATE AND COMPLETE. 1 AM AWARE THAT THERE ARE SICNIRCANT, PENALTIES FOR SUBMITTING FALSE INFORMATION, INCLUDING THE POSSIBIUTY OF FINE AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 U.S.C. §1319. (Penalties under these statutes may include tines up lo SI0,000 and or maximum imprisonment of between 6 months and 5 years)

MONTHLY AVERAGE

XXXX

XXXX

XXXX

XXXX

< 0.004

NON-DETECT

< 0.001

NON-DETECT

< 0.001

0.00275

<0.001

NON-DETECT

<0.001

0.00445

< 0.007

NON-DETECT

INST. MAXIMUM

XXXX

XXXX

7.64 INST. MAX.

9.0

< 0.004

NON-DETECT

< 0.001

NON-DETECT-

< 0.001

0.0041

< 0.001

NON-DETECT

< 0.001

0.0070

< 0.007

NON-UETECT

SIGNATURE OF PRINCIPAL EXECUTIVE OFFICER OR AUTHORIZED AGENT

UNITS

XXXX

STD UNITS

MG/L

MG/L

MG/L

MO/L

MG/L

MG/L

NO. EX

0

0

0

0

0

0

0

0

FREQUENCY

OF

ANALYSIS

DAILY

DAILY

1/MONTH

1/Momn

1/MONTH

1/MONTH

1/MONTH

1/MONTH

I/MONTH

1/MONTH

1/MONTH

1/MONTH

1/MONTH

1/MONTH

1/MONTH

1/MONTH

TELEPHONE

610-327-4174

AREA CODE NUMBER

2011

YEAR

SAMPLE TYPE

RECORDED

RECORDED

GRAB

GRAB

GRAB

GRAB

GRAB

GRAB

GRAB

GRAB

CRAB

GRAB

GRAB

GRAB

GRAB

GRAB

DATE

02

MO

02

DAY

COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference all atiachmcms here) PERMIT EXPIRES August 31. 2014 SUBMIT RENEWAL BY February 28. 2014

EPA FORM 3320-1 (Rev 9 - 88) previous edition may be used Re 30 (GJE09)226.8

(REPLACES EPA FORM T -40 WHICH MAY NOT BE USED) Page 1 of 2 AR300368

PERMITTEE NAME ADDRESS (include NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) Facility Name / Location ifdiffcrent) DISCHARGE MONITORING REPORT (DMR)

PRIMARY FACILITY: OCCIDENTAL CHEMICAL GROUNDWATER REMEDIATION SITE

CLIENT: GLENN SPRINGS HOLDINGS, INC.

ADDRESS: 5005 LBJ FREEWAY, STE 1350

DALLAS, TX 75244

SITE ADDRESS: 375 ARMAND HAMMER BOULEVARD

MUNICIPALITY: LOWER POTTSGROVE TOWNSHIP

COUNTY: MONTGOMERY

Parameter

STYRENE

PHENOLS, TOTAL

VINYL CHLORIDE

Sample Measurement

Perniit Requirement

Sample Measurement

Permit Requirement

Sample Measurement

Permit Requirement

Sample Measurement

Permit Requirement

Sample Measurement

Permit Requirement

Sample Measurement

Permit Requiremcnl

Sample Measurement

Pennit Requirement

Sample Measurement

Permit Requircmeni

NAMErtTTLE PRINCIPAL EXECUTIVE

OFFICER

GEORGE LUXBACHER, VPOPERATIONS-GSHI

TYPE OR PRINT

PA0010944 PERMIT NUMBER

005 DISCHARGE NUMBER

MONITORING PERIOD YEAR

2011 MO

01

DAY

01

QUANTITY OR LOADING

MONTHLY AVERAGE

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

DAILY MAXIMUM

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

UNITS

XXXX

XXXX

XXXX

TO YEAR

2011

MO

01

DAY

31

QUALITY OR CONCENTRATION

INST. MINIMUM

XXXX

XXXX

XXXX

XXXX

XXXX

XXXX

1 CERTIFY UNDER PENALTY OF LAW THAT I HAVE PERSONALLY

EXAMINED AND f M FAMILIAR WITH THE INFORMATION SUBMnTED'

HEREIN AND BASED ON MY INQUIRY OF THOSE INDIVIDUALS

IMMEDIATELY RESPONSIBLE FOR OBTAINING THE INFORMATION, K

BELIEVE THE SUBMITTED INFORMATION IS T R U t ACCURATE ANIj/

COMPLETE. I AM AWARE THAT THERE ARE SIGNIFICANT PENALTIES I W

suBMrr r iNG F A L S E I N F O R M A T I O N , I N C L U D I N G T H E possiBiLrrY O F F I N E

AND IMPRISONMENT SEE 18 U.S.C. §1001 AND 33 U.S.C. 51319. (Penalties under these statutes may include fines up to $10,000 and or maximum imprisonment of between 6 months and .S years)

MONTHLY AVERAGE

< 0.001

NON-DCTECT

O.OII

MONITOR/REPORT

< 0.002

NON-DETHCT

INST. MAXIMUM

< 0.001

NON-DETECT

0.011

MONITOR/REPORT

< 0.002

NON-DETECT

. SIGNATURE OF PRINCIPAL EXECUTIVE

OFFICER OR AUTHORIZED AGENT

Sou theas t Region

Facs imi le

NOTE: Read insiruclions before completing this form

UNITS

MG/L

MG/I-

MG/L

NO. EX

0

0

0

FREQUENCY

OF

ANALYSIS

1/MONTH

1/MONTH

1/MONTH

1/MONTH

1/MONTH

1/MONTH

TELEPHONE

610-327-4174

AREA CODE NUMBER

2011

YEAR

SAMPLE TYPE

GRAB

GRAB

GRAB

GRAB

GRAB

GRAB

DATE

02

MO

02

DAY

COMMENT AND EXPLANATION OF ANY VIOLATIONS (Reference all attachments here)

PERMITEXPIRES August 31,2014 SUBMIT RENEWAL BY Febi-uary28,20I4

EPA FORM 3320-1 (Rev 9 - 88) previous edition may be used Re 30 (GJE09)226-8A

(REPLACES EPA FORM T-40 WHICH MAY NOT BE USED) Page 2 of 2 AR300369