omega chemical corporation whittier california indoor air ... · r09: perina, tom (c h 2 m hill,...

Omega Chemical Corporation Superfund Site

Whittier, California

Indoor Air Removal Action

NPL Site Administrative Record File

Index

Released: 05/26/2006

SEMS-RM DOCID # 1162798

About the Administrative Record This administrative record file contains the documents that the U.S. Environmental Protection Agency (EPA) is currently using to identify appropriate removal activities for the Omega Chemical Corporation Superfund Site, Whittier, California. It is presented in Compact Disk (CD) format. The administrative record file will be supplemented periodically; it will be complete after public comments on EPA's Proposed Plan, EPA's response to comments, and the Record of Decision (ROD) are included. EPA welcomes questions and comments on documents contained in the administrative record file. Please contact:

Christopher Lichens or: Jacqueline Lane Remedial Project Manager Community Involvement Coordinator U.S. EPA (SFD-7-4) U.S. EPA (SFD-3) 75 Hawthorne Street 75 Hawthorne Street San Francisco, CA 94105-3901 San Francisco, CA 94105-3901 (415) 972-3149 (415) 972-3236 or (800) 231-3075 What is an Administrative Record?

An administrative record is a collection of documents that form the basis for an agency's decision, in this case the selection of a response action at a Superfund site. This does not mean that only documents that support a response decision are placed in the administrative record. Relevant documents that were relied upon in selecting the response action, as well as relevant documents that were considered but ultimately rejected, are included. The administrative record also acts as a vehicle for public participation in selecting a response action. Under section 113(K) of the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), as amended by the Superfund Amendments and Reauthorization Act (SARA), the U.S. Environmental Protection Agency (EPA) is required to establish an administrative record for every Superfund response action and to make a copy of the administrative record available at or near the site. The administrative record must be reasonably available for public review during normal business hours and should be treated as a non-circulating reference document. Questions regarding the maintenance of the administrative record file should be directed to: Elaine Chan, Administrative Record Coordinator, U.S. EPA (SFD-7-B), 75 Hawthorne Street, San Francisco, CA 94105-3901, Phone: (415) 972-3128 How to obtain copies of administrative record documents:

Individuals may copy any documents contained in the administrative record file according to the procedures at the local repository or request a copy of the CD by calling the Superfund Records Center at (415) 536-2000.

Omega Chemical Corporation Superfund Site Indoor Air Removal

Administrative Record

Acronyms and Abbreviations

ABBREVIATION MEANING

1,2,3-TCP 1,2,3-Trichloropropane

app Appendix

attch Attachment

CalEPA California Environmental Protection Agency

CRWQCB-SF California Regional Water Quality Control Board – San Francisco Bay Region

CDM Camp Dresser & McKee, Inc

CH2M Hill CH2M Hill, Inc

COD Chemical Oxygen Demand

Cr6 Hexavalent Chromium

DTSC California Department of Toxic Substances Control

encl Enclosure

EPA US Environmental Protection Agency

ESL Environmental Screening Level

FedEx Federal Express Corp

fr From

FS Feasibility Study

GC/MS Gas Chromatograph/Mass Spectrometer

HHSL Human Health Screening Level

HVAC Heating, Ventilating, and Air Conditioning

LA Los Angeles, California

ltr Letter

memo Memorandum

MIP Membrane Interface Probe

NDMA N-Nitrosodimethylamine

OU Operable Unit

re Regarding

RI Remedial Investigation

rpt Report

SDG Sample Delivery Group

SSD Sub-Slab Depressurization

TL Transmittal Letter

US United States

VOC Volatile Organic Compound

w/ With

w/o Without This administrative record is available for viewing at the Superfund Records Center in San Francisco and the Whittier Central Public Library, 7344 South Washington Ave., Whittier, CA 90602.

Omega Chemical Corporation

Superfund Site


Indoor Air Removal Administrative Record, 05-26-2006

Final Key Document Index

Document ID Document Date Title Author Addressee

2091916 4/10/2006Action Memo: Request for removal action for

vapor intrusion

R09: Lichens, Christopher

(Environmental Protection Agency -

Region 9)

R09: Adams, Elizabeth (Environmental

Protection Agency - Region 9)

Page 1 of 1


Superfund Site



Final Indexin CHRONOLOGICAL order


2010264 9/29/2003 Final on-site soils RI/FS work plan R09: (Camp Dresser & McKee, Inc)R09: (Environmental Protection Agency -

Region 9)

2097178 5/3/2004Email: Responds to comments re proposed air

sampling locations & analytes, w/history

R09: Wallin, Sharon (Camp Dresser &

McKee, Inc)

R09: Lichens, Christopher (Environmental

Protection Agency - Region 9), R09:

Mclaughlin, Chuck (de maximis, inc)

2097179 5/6/2004Memo: Proposed air sampling locations &

analytes


McKee, Inc), R09: Raine, Teresa (Camp

Dresser & McKee, Inc)



2097180 5/6/2004Memo: Conditionally approves proposed air

sampling locations & analytes

R09: Taylor, David (Environmental




2025230 5/26/2004

Analytical testing results for OU 1 4/04 split

sampling - Project R04S52, SDG 04105B, 3 air

samples for VOCs-soil gas, collected 4/12 &

4/13/04, w/TL to C Lichens fr B Bettencourt

R09: (Environmental Protection

Agency - Region 9 Laboratory)

R09: (Environmental Protection Agency -

Region 9)

2097181 7/26/2004

Memo: Transmits results of indoor air & ambient

air sampling on 5/11/04, & soil vapor sampling

on 4/12 & 4/13/04, w/attchs


McKee, Inc)



2097182 7/27/2004Memo: Transmits split air sampling results,

w/attchR09: Perina, Tom (C H 2 M Hill, Inc)



2097183 8/2/2004 Memo: Skateland facility HVAC evaluation


McKee, Inc), R09: Warriner, Tom

(Camp Dresser & McKee, Inc)

R09: Mclaughlin, Chuck (de maximis, inc)

2097184 8/2/2004Memo: Transmits preliminary hapsite GC/MS

results for 7/30/04 air sample analysis, w/attch


McKee, Inc)



2097185 8/2/2004Memo: Discusses preliminary hapsite results for

7/30/04 indoor air sampling at SkatelandR09: Perina, Tom (C H 2 M Hill, Inc)



Page 1 of 16


Superfund Site





2097186 8/2/2004Email: Discusses & transmits map of soil gas

sampling locations, w/attchR09: Perina, Tom (C H 2 M Hill, Inc)



2097187 8/2/2004

Email: Transmits Skateland facility HVAC

evaluation & Skateland ventilation

requirements, w/attchs

R09: Mclaughlin, Chuck (de maximis,

inc)



2097188 8/3/2004Email: Discusses proposed Skateland air

sampling locations, w/historyR09: Perina, Tom (C H 2 M Hill, Inc)



2050563 8/4/2004

Analytical testing results for OU 1 2004 indoor

air sampling - project R04S77, SDG 04216A, 8 air

samples collected 7/30 & 7/31/04, analyzed for

VOCs & soil gas, w/TL to C Lichens fr B

Bettencourt (draft)




Region 9)

2097189 8/16/2004Email: Discusses & transmits figures of air

sample locations, w/attchsR09: Perina, Tom (C H 2 M Hill, Inc)



2097190 8/17/2004Technical Memo: Indoor air sampling at

Skateland on 7/30/04, w/email TLR09: Perina, Tom (C H 2 M Hill, Inc)



2033879 8/26/2004Ltr: Discusses & transmits results of indoor air

sampling on 5/11/04 at Skateland, w/attch



Region 9)

R09: Shayman, Thomas (Skateland)


sampling on 5/11/04 at Skateland, w/attch



Region 9)

R09: Franco, Joe (Skateland)

2097191 9/1/2004 Memo: Skateland indoor air results, w/attchsR09: Chamberlin, David (Camp Dresser

& McKee, Inc)



2097192 9/1/2004Email: Cost estimate for additional HVAC unit at

SkatelandR09: Perina, Tom (C H 2 M Hill, Inc)



Page 2 of 16


Superfund Site





2033878 9/3/2004


air sampling - project R04S77, SDG 04216A, 8 air


VOCs & soil gas, w/TL to C Lichens fr B

Bettencourt 9/7/04




Region 9)

2091896 9/24/2004

Memo: On-site soils workplan addendum -

proposed scope of work for additional

investigation, w/email TL to C Lichens fr C

McLaughlin

R09: Chamberlin, David (Camp Dresser

& McKee, Inc), R09: Wallin, Sharon




2045565 9/27/2004

Ltr: Concurs with CDM memo dated 9/1/04 re

need for mitigation measures & possible future

actions

R09: Amir, Sayareh (CA Environmental

Protection Agency - Dept of Toxic

Substances Control)



2097193 9/30/2004Ltr: Responds to DTSC ltr dated 9/27/04 re

indoor air sampling at Skateland

R09: Praitis, Judith (Sidley, Austin,

Brown & Wood (Attorneys))

R09: Cox, Elizabeth (Environmental


2050564 10/6/2004


sampling - project R04S81, SDG 04239A, 2 water

samples collected 8/27/04, analyzed for 1,4-

dioxane, w/TL to C Lichens fr B Bettencourt

10/7/04




Region 9)

2097194 10/8/2004Memo: Responds to comments re on-site soils

workplan addendum


& McKee, Inc)



2050566 10/13/2004




VOCs, w/TL to C Lichens fr B Bettencourt




Region 9)

2097195 10/13/2004Ltr: Responds to concerns re DTSC involvement

at site

R09: Cox, Elizabeth (Environmental


R09: Topol, Allan (Covington & Burling

(Attorneys)), R09: Lucero, Gene (Latham &

Watkins (Attorneys)), R09: Millhouse, Keith

(Millhouse Law Group), R09: Praitis, Judith

(Sidley, Austin, Brown & Wood (Attorneys))

Page 3 of 16


Superfund Site





2045567 10/15/2004TL: Ltr to C Lichens fr S Amir dated 9/27/04 re

indoor air contamination at Skateland



Region 9)

R09: Shayman, Thomas (NONE)

2097198 10/20/2004

Memo: On-site soils workplan addendum - scope

of work for additional investigation, w/figure 1,

app A, & app B






2097196 10/25/2004Email: Transmits ranges for upwind ambient

samples collected in 5/04, w/attchR09: Perina, Tom (C H 2 M Hill, Inc)



2050565 10/28/2004




1,4-dioxane, w/TL to C Lichens fr B Bettencourt

10/28/04 (revised)




Region 9)

2097197 10/29/2004

Ltr: Conditionally approves phase 1, tasks 1 & 2,

does not approve phase 1 task 3, & will evaluate

later phase 2 work as outlined in on-site soils

workplan addendum - scope of work for

additional investigation dated 10/20/04



Region 9)


2045570 11/1/2004 Fact Sheet: EPA evaluates indoor air at siteR09: (Environmental Protection

Agency - Region 9)

2097199 11/2/2004

TL: Apps A & B to on-site soils workplan

addendum - scope of work for additional

investigation


McKee, Inc)



2097200 11/2/2004

Email: Transmits results of indoor air sampling

on 7/30 & 7/31/04 at Skateland, w/attch (July

Air Data Tables xls)

R09: Perina, Tom (C H 2 M Hill, Inc)R09: Lichens, Christopher (Environmental


2099521 11/4/2004

Email: Transmits revised results of indoor air

sampling on 7/30/ &7/31/04 at Skateland,

w/attch (July Air Data Tables Rev4_110404 xls)



Page 4 of 16


Superfund Site





2045568 11/5/2004

Ltr: Discusses & transmits results of indoor air

sampling on 7/30, 7/31 & 8/4/04 at Skateland,

w/attchs, w/o FedEx receipt



Region 9)


2097175 11/5/2004


sampling on 7/30, 7/31 & 8/4/04 at Skateland

(FedEx receipt only)



Region 9)


2099522 11/9/2004

Memo: Transmits LA County Sanitation District

sewer main location map, & City of Whittier

underground drawings for sewer & water,

w/attchs


McKee, Inc)



2099523 11/12/2004

Memo: On-site soils workplan addendum -

proposed utility corridor vapor sampling

locations (revised)

R09: Eisenbeis, John (Camp Dresser &

McKee, Inc), R09: Wallin, Sharon




2045569 11/15/2004


sampling on 7/30, 7/30 & 8/4/04 at Skateland,

w/attchs, w/o FedEx receipt



Region 9)


2097176 11/15/2004


sampling on 7/30, 7/31 & 8/4/04 (FedEx receipt

only)



Region 9)


2099524 11/17/2004

Memo: Teleconference notes re interim

mitigation measures for Skateland indoor air

impacts, w/email TL



2099525 11/23/2004

Memo: Teleconference notes re mitigation

measures for Skateland indoor air impacts,

w/email TL



2046307 11/24/2004

Ltr: Transmits signed consent for access to

property & 11/04 fact sheet, w/attchs & TL to J

Poxon fr T Cox, w/o FedEx receipt



Region 9)


2097177 11/24/2004Ltr: Transmits signed consent for access to

property & 11/04 fact sheet (FedEx receipt only)



Region 9)


2099526 11/24/2004Ltr: Transmits 11/04 fact sheet, w/attch & FedEx

receipt



Region 9)


Page 5 of 16


Superfund Site





2045572 11/30/2004

Memo: Proposed evaluation of soil gas results,

observations on subsurface conditions during

sampling, & air purifier installation

R09: Eisenbeis, John (Camp Dresser &

McKee, Inc), R09: Wallin, Sharon




2099527 12/1/2004

Memo: Comments on proposed evaluation of

soil gas results, observations of subsurface

conditions during sampling, & air purifier

installation, w/email TL

R09: Grigorieff, Mike (C H 2 M Hill,

Inc), R09: Perina, Tom (C H 2 M Hill,

Inc)



2099528 12/2/2004Email: Transmits 11/04 sampling results &

sample location map, w/attchs


McKee, Inc)



2045563 12/3/2004Administrative order #2005-03 directing

compliance with request for access, w/apps A-C


Agency - Region 9)

2045564 12/3/2004

TL: Administrative order #2005-03 directing

compliance with request for access, w/FedEx

receipts

R09: Schauffler, Frederick


Region 9)

R09: Chee, Kathryn (NONE), R09: Shayman,

Thomas (NONE)

2099529 12/27/2004Email: Comments on draft soil vapor extraction

pilot test workplan, w/history

R09: Parnass, Lori (CA Environmental


Substances Control)



2099530 12/28/2004Email: Discusses 12/27/04 sampling at

Skateland, w/history


McKee, Inc)



Mclaughlin, Chuck (de maximis, inc)

2099531 12/28/2004 Revised soil vapor extraction pilot test workplan R09: (Camp Dresser & McKee, Inc)R09: (Omega Chemical Site P R P Organized

Group)

2099534 1/7/2005

Memo: Preliminary review comments on soil

vapor extraction pilot test revised workplan,

w/email TL


Inc), R09: Braun, Richard (C H 2 M Hill,


Inc)



2099533 1/10/2005

Email: Discusses upcoming indoor air sampling at

Skateland & provides information re building

foundation


McKee, Inc)


Protection Agency - Region 9), R09: Perina,

Tom (C H 2 M Hill, Inc), R09: Mclaughlin,

Chuck (de maximis, inc)

Page 6 of 16


Superfund Site





2099535 1/10/2005

Email: Discusses & transmits draft revised

objectives of soil vapor extraction pilot test

workplan, w/attch


& McKee, Inc)


Protection Agency - Region 9), R09: Perina,

Tom (C H 2 M Hill, Inc)

2099536 1/24/2005

Email: Transmits comments on revised soil vapor

extraction pilot test workplan, dated 12/28/04,

w/attch

R09: Parnass, Lori (CA Environmental


Substances Control)



2099537 1/31/2005Email: Transmits Skateland indoor air sampling

results, w/attch

R09: Mclaughlin, Chuck (de maximis,

inc)



2063468 2/8/2005


air sampling - project R05S21, SDG 05004E, 4 air

samples collected 12/29/04, analyzed for VOCs

& soil gas, w/TL to C Lichens fr B Bettencourt

2/9/05




Region 9)

2099538 2/8/2005Email: Discusses soil vapor extraction pilot test

objectives & Skateland coring, w/attch



Region 9)


2063467 2/9/2005


air sampling - project R05S21, SDG 05015B, 4 air

samples collected 1/12/05, analyzed for VOCs &

soil gas, w/TL to C Lichens fr B Bettencourt




Region 9)

2063466 2/15/2005

Analytical testing results for OU 1 11/04 soil gas -

project R05S17, SDG 04320A, 10 air samples

collected 11/11/04, analyzed for VOCs & soil gas,

w/TL to C Lichens fr B Bettencourt 2/17/05




Region 9)

2099539 2/17/2005Email: Transmits revised Skateland indoor air

sampling results tables, w/attchs


McKee, Inc)



Page 7 of 16


Superfund Site





2099540 3/1/2005

Memo: Review comments on summary of

Skateland indoor air analytical results compared

to CalEPA HHSLs & CRWQCB-SF ESLs & VOCs

analytical summary, w/email TL


Inc), R09: Braun, Richard (C H 2 M Hill,


Inc)



Smucker, Stanford (Environmental


2063464 3/23/2005


sampling - project R05S35, SDG 05055B, 3 water


dioxane, w/TL to C Lichens fr B Bettencourt




Region 9)

2063465 3/25/2005



samples collected 2/23/05, analyzed for VOCs,

w/TL to C Lichens fr B Bettencourt




Region 9)

2099541 3/25/2005


sampling on 12/29 & 12/30/04, & 1/12/05 at

Skateland, w/encl



Region 9)


2099542 3/25/2005


sampling on 12/29 & 12/30/04, & 1/12/05 at

Skateland, w/encl



Region 9)


2099543 3/30/2005 Ltr: Comments on draft OU 1 project schedule



Region 9)


2067760 4/8/2005

Memo: On-site soils RI/FS workplan addendum 2

- scope of work for additional investigation,

w/figures 1-24, w/o app A, w/email TL






2096894 4/8/2005

Memo: Transmits color figures & app A fr on-site

soils RI/FS workplan addendum 2 - scope of

work for additional investigation (compact disc

only)


McKee, Inc)



Page 8 of 16


Superfund Site





2099544 4/8/2005

Memo: Transmits color figures & app A fr on-site

soils RI/FS workplan addendum 2 - scope of

work for additional investigation, w/o compact

disc


McKee, Inc)



2099545 4/18/2005Memo: Comments on sub-slab depressurization

workplan, dated 2/24/05



Region 9)


2099546 4/18/2005Memo: Comments on on-site soils workplan

addendum 2, dated 4/8/05



Region 9)


2068708 4/29/2005

Memo: Response to comments re on-site soils

RI/FS workplan addendum 2 - scope of work for

additional investigation, w/TL






2099547 6/6/2005Ltr: Comments on CDM memo dated 5/9/05 re

sub-slab depressurization testing workplan



Region 9)


2099548 6/10/2005Ltr: Comments on CDM memo dated 4/29/05 re

on-site soils workplan addendum 2



Region 9)


2099549 7/14/2005Email: Discusses sub-slab depressurization

workplan, dated 6/24/05R09: Perina, Tom (C H 2 M Hill, Inc) R09: Grigorieff, Mike (C H 2 M Hill, Inc)


workplan, dated 6/24/05, w/historyR09: Perina, Tom (C H 2 M Hill, Inc)



2099551 7/18/2005

Ltr: Conditionally approves on-site soils RI/FS

workplan addendum 2, as revised by CDM's

memo dated 7/8/05



Region 9)


2099552 7/20/2005Ltr: Conditionally approves sub-slab

depressurization workplan, dated 6/24/05



Region 9)


2070555 7/27/2005

Data Validation Rpt: Project R04S77, SDG

04216A, 8 air samples for volatiles, collected

7/30 & 7/31/04

R09: (C H 2 M Hill, Inc)R09: (Environmental Protection Agency -

Region 9)

Page 9 of 16


Superfund Site





2070556 7/27/2005

Data Validation Rpts: Project R04S33, SDG

04021B, 1 water & 4 soil samples for volatiles &

semivolatiles, collected 1/20 & 1/21/04


Region 9)

2070557 7/27/2005


04105B, 3 air samples for volatiles, collected

4/12 & 4/13/04


Region 9)

2070558 7/27/2005


04057E, 4 water samples for volatiles &

semivolatiles, collected 2/24-2/25/04


Region 9)

2070559 7/27/2005


04239A, 3 water samples for volatiles, collected

8/24 & 8/27/04


Region 9)

2070560 7/27/2005


04320A, 10 air samples for volatiles, collected

11/11/04


Region 9)

2071761 7/27/2005


05004E, 4 air samples for volatiles, collected

12/29/04


Region 9)

2071762 7/27/2005


05015B, 4 air samples for volatiles, collected

1/12/05


Region 9)

2071763 7/27/2005


05055B, 3 water samples for volatiles &

semivolatiles, collected 2/23/05


Region 9)

2096895 8/17/2005

Memo: Final on-site soils RI/FS workplan

addendum 2 - scope of work for additional

investigation (compact disc only)






2099553 8/17/2005

Memo: Final on-site soils RI/FS workplan

addendum 2 - scope of work for additional

investigation, w/figures, apps A & B, & TL, w/o

compact disc






Page 10 of 16


Superfund Site





2099554 9/9/2005

Memo: Approves final on-site soils workplan

addendum 2 dated 8/17/05, final SSD workplan

dated 8/17/05, & memo dated 9/6/05 re on-site

soils RI/FS workplan addendum 2 -

recommendation for modification to MIP

investigation locations



Region 9)

R09: Modiano, Edward (de maximis, inc)

2091849 9/16/2005

Analytical testing results for OU 1 8/05 sampling -

project R05S67, SDG 05231C, 4 air samples

collected 8/15-8/18/05, analyzed for VOCs & soil

gas, w/TL




Region 9)


testing schedule, w/historyR09: Perina, Tom (C H 2 M Hill, Inc)



2091850 9/27/2005


project R05S67, SDG 05237A, 3 water samples

collected 8/24/05, analyzed for 1,4-Dioxane,

w/TL




Region 9)

2091851 9/27/2005


project R05S67, SDG 05237A, 3 water samples

collected 8/24/05, analyzed for VOCs, w/TL




Region 9)

2097151 9/28/2005

Analytical testing results for OU 2 Aug/Sept 2005

sampling - project R05S77, SDG 05243A, 20

water samples collected 8/30-9/2/05, analyzed

for 1,4-Dioxane, w/TL




Region 9)

2099556 9/30/2005Technical Memo: Sub-slab depressurization

testing, w/email TL

R09: Lechler, Benjamin (C H 2 M Hill,

Inc)



2097152 10/3/2005




for 1,4-Dioxane, w/TL (revised rpt)




Region 9)

Page 11 of 16


Superfund Site





2097153 10/6/2005




for perchlorate, w/TL




Region 9)

2099557 10/13/2005

Email: Transmits results of indoor air quality

sampling on 9/14/05 at various locations,

w/attch (VOCs Analytical Summary - Indoor Air -

All with EPA_093005.pdf)

R09: Modiano, Edward (de maximis,

inc)R09: Perina, Tom (C H 2 M Hill, Inc)

2097154 10/25/2005

Analytical testing results for OU 1 August 2005

sampling - project R05S67, SDG 05259F, 4 air


soil gas, w/TL




Region 9)

2099558 10/28/2005Sub-slab depressurization testing - draft

technical memo, w/apps A & BR09: (Camp Dresser & McKee, Inc)


Region 9)

2099559 11/1/2005


- summary of initial findings fr soil vapor and

MIP sampling with recommendations for

additional sampling locations, w/email TL






2097155 11/4/2005

Analytical testing results for OU 1 August 2005

sampling - project R05S67, SDG 05266E, 4 air

samples collected 9/21-9/22/05, analyzed for

VOCs, soil gas, w/TL




Region 9)

2099560 11/10/2005

Ltr: Comments on on-site soils workplan

addendum 2 - summary of initial findings fr soil

vapor & MIP sampling with recommendations

for additional sampling



Region 9)


2099561 11/14/2005

Email: Transmits result tables of indoor air

sampling on 9/14/05 at various locations,

w/attchs



2099562 11/17/2005

Ltr: Comments on Skateland sub-slab

depressurization testing draft technical memo,

dated 10/28/05, w/attchs 1 & 2



Region 9)


Page 12 of 16


Superfund Site





2099563 12/7/2005

Email: Transmits revised result tables of indoor

air sampling on 9/14/05 at various locations,

w/attch (Tables 1-20.pdf)




samples collected 9/14/05 at Skateland, w/encl



Region 9)


2099565 12/16/2005Skateland sub-slab depressurization testing

technical memo, w/apps A & BR09: (Camp Dresser & McKee, Inc)


Region 9)


samples collected 9/05 at Skateland, w/attchs


McKee, Inc)R09: Shayman, Thomas (NONE)


samples collected 9/05 at Skateland, w/attchs


McKee, Inc)R09: Franco, Joe (Skateland)

2099568 1/10/2006

Memo: Review comments on Skateland sub-slab

depressurization testing technical memo, dated

12/16/05, w/email TL



Inc)



2099569 1/17/2006

Ltr: Comments on Skateland sub-slab

depressurization testing technical memo, dated

12/16/05



Region 9)


2099570 1/27/2006


- summary of additional findings fr soil vapor &

MIP sampling


& McKee, Inc), R09: Smith, Mike




2099571 2/8/2006

Ltr: Comments on on-site soils RI/FS workplan

addendum 2 - summary of initial findings fr soil

vapor & MIP sampling, dated 1/27/06



Region 9)


2099572 2/15/2006

Memo: Evaluation of containment vapor

intrusion mitigation options for Skateland,

w/email TL

R09: Nguyen, Gino (C H 2 M Hill, Inc),

R09: Perina, Tom (C H 2 M Hill, Inc)



Page 13 of 16


Superfund Site





2097170 2/22/2006

Data Validation Rpt: SDGs 044466, 044485,

044539, 045575, 045594, 045611, 045621,

045657, 045709, & 045740, 38 groundwater

samples collected 9/13-9/16/04, 11/30/04, &

12/1-12/9/04, analyzed for Cr6, w/TL

R09: Kott, Stan (I C F

Consulting/Laboratory Data

Consultants)


Region 9)

2097171 2/22/2006

Data Validation Rpt: SDG 045674, 6 groundwater

samples collected 12/7/04, analyzed for Cr6,

w/TL

R09: Kott, Stan (I C F


Consultants)


Region 9)

2097174 2/24/2006

Memo: Tier 1A review of analytical data - SDGs

G4L010311, G4L020335, G4L040125,

G4L040206, G4L070405, G4L080479,

G4L090480, & G4L100385, 29 water samples

analyzed for COD

R09: Lindelof, Doug (I C F


Consultants)



2099573 2/24/2006

Email: Discusses & transmits response to EPA

comments fr 2/8/06 re on-site soils RI/FS

workplan addendum 2, summary of initial

findings fr soil vapor & MIP sampling, w/attch

R09: Modiano, Edward (de maximis,

inc)



2097172 2/27/2006

Data Validation Rpt: SDG G4L100385, 5 water

samples collected 12/9/04, analyzed for NDMA

& 1,2,3-TCP, w/TL

R09: Estrada, Nanny (I C F


Consultants)


Region 9)

2097173 3/3/2006

Data Validation Rpt: SDGs G4L010311,

G4L020335, G4L040125, G4L040206,

G4L070405, G4L080479, & G4L090480, 25 water

samples collected 12/9/04, analyzed for NDMA

& 1,2,3-TCP, w/TL to C Lichens fr D Lindelof

3/3/06

R09: Lee, Santiago (I C F

International/Laboratory Data

Consultants)


Region 9)

2097156 3/15/2006

Analytical testing results for OU 1 February 2006

split sampling - project R06S36, SDG 06053B, 4

water samples collected 2/21/06, analyzed for

VOCs, w/TL




Region 9)

Page 14 of 16


Superfund Site





2097157 3/21/2006




1,4-dioxane, w/TL




Region 9)

2097158 3/23/2006




1,4-dioxane, w/TL (revised rpt)




Region 9)

2097159 3/23/2006




VOCs, w/TL (revised rpt)




Region 9)

2097160 3/28/2006

Analytical testing results for OU 2 March 2006

sampling - project R06S31, SDG 06066C, 16


for 1,4-dioxane, w/TL




Region 9)

2097163 3/28/2006


sampling - project R06S31, SDG 06069D, 15


for 1,4-dioxane, w/TL




Region 9)

2097161 4/6/2006




for VOCs, w/TL




Region 9)

2097166 4/6/2006


split sampling - project R06S36, SDG 06073A, 1

water sample collected 3/13/06, analyzed for

VOCs, w/TL




Region 9)


vapor intrusion



Region 9)



Page 15 of 16


Superfund Site






vapor intrusion (concurrence page)



Region 9)



2097162 4/11/2006








Region 9)

2097164 4/11/2006




for VOCs, w/TL




Region 9)

2097167 4/14/2006




dioxane, w/TL




Region 9)

2097165 4/17/2006








Region 9)

2097168 4/17/2006



samples collected 3/15/06, analyzed for

perchlorate, w/TL




Region 9)

2097169 4/17/2006




w/TL




Region 9)

2099532 5/22/2006

List of US EPA guidance documents consulted

during development & selection of response

action for site


Agency)

Page 16 of 16

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