Pacific Southwest, Region 9: Superfund
Serving Arizona, California, Hawaii, Nevada, the Pacific Islands, and Tribal Nations
Omega Chemical Corporation
Superfund Site
Operable Unit #1
Administrative Record Index
To request copies of administrative record documents, an electronic order form is available.
This administrative record file contains the documents that the U.S. Environmental Protection Agency (EPA) is currently using to identify appropriate remedial activities for the Omega Chemical Superfund site Operable Unit #1 in Whittier, California. It is presented in compact disc (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.
This administrative record file also includes by reference the documents in the Omega Chemical Corporation Superfund Site Indoor Air Removal Administrative Record .
EPA welcomes questions and comments on documents contained in the administrative record file. Please contact:
| Christopher Lichens Remedial Project Manager U.S. EPA (SFD-7-4) 75 Hawthorne Street San Francisco, CA 94105-3972 (415) 972-3149 | or: | Jacqueline Lane Community Involvement Coordinator U.S. EPA (SFD-3) 75 Hawthorne Street San Francisco, CA 94105-3972 (415) 972-3236 or (800) 231-3075 |
List of Abbreviations and Acronyms Used in Administrative Record Index
| ABBREVIATION | MEANING |
| app | Appendix |
| ARAR | Applicable or Relevant and Appropriate Restriction (or Requirement) |
| attch | Attachment |
| CDM | Camp Dresser & McKee, Inc |
| COB | Close of Business |
| EE/CA | Engineering Evaluation/Cost Analysis |
| encl | Enclosure |
| EPA | Environmental Protection Agency |
| fr | From |
| FS | Feasibility Study |
| HVAC | Heating, Ventilation, and Air Conditioning |
| ltr | Letter |
| memo | Memorandum |
| MIP | Membrane Interface Probe |
| OPOG | Omega Chemical Site PRP Organized Group |
| OU | Operable Unit |
| RAO | Remedial Action Objective |
| PRP | Potentially Responsible Party |
| re | Regarding |
| RI | Remedial Investigation |
| RI/FS | Remedial Investigation/Feasibility Study |
| rpt | Report |
| SDG | Sample Delivery Group |
| TL | Transmittal Letter |
| US | United States |
| VFLUX | Vertical Flux |
| VOC | Volatile Organic Compound |
| w/ | With |
| w/o | Without |
| WNW | West Northwest |
Administrative Record Index
| Doc_date | Author | Addressee | Title_subject | Docid |
| 1/27/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits memo fr CDM re on-site soils RI/FS workplan addendum 2, summary of additional findings fr soil vapor & MIP sampling, w/attch | 1110552 |
| 2/24/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits responses to EPA comments dated 2/8/06 re on-site soils RI/FS workplan addendum 2 - summary of initial findings fr soil vapor & MIP sampling (CDM, 1/27/06), w/attch | 1110501 |
| 4/14/2006 | Sharon Wallin / Camp Dresser & McKee, Inc David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Memo: On-site soils RI/FS workplan addendum #2, summary of additional findings fr soil vapor & MIP sampling, w/TL to C Lichens fr E Modiano 4/14/06 | 1110499 |
| 4/26/2006 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Responds to email dated 4/25/2008 re proposed step-out location WNW of VP-29, w/history | 1110496 |
| 4/27/2006 | John Eisenbeis / Camp Dresser & McKee, Inc | Edward Modiano / De Maximis, Inc | Memo: Sub-slab depressurization testing results, w/TL to C Lichens fr E Modiano 5/3/2006 | 2157314 |
| 6/13/2006 | David Chamberlin / Camp Dresser & McKee, Inc Sharon Wallin / Camp Dresser & McKee, Inc | Edward Modiano / De Maximis, Inc | Memo: Scope of work for HVAC & chemical usage inventory, w/TL to C Lichens fr E Modiano 6/13/2006 | 2157315 |
| 6/14/2006 | Calvin Tanaka / I C F Consulting/Laboratory Data Consultants | Environmental Protection Agency - Region 9 | Data Validation Rpt: Case 32754, SDG Y1AM0, 3 soil samples collected 4/5/04, analyzed by A4 Scientific, Inc for semivolitiles, w/TL to C Lichens fr D Lindelof | 2156422 |
| 6/15/2006 | Stan Kott / I C F Consulting/Laboratory Data Consultants | Environmental Protection Agency - Region 9 | Data Validation Rpt: Case 32754, SDG MY1AM0, 3 soil samples collected 4/5/04, analyzed by Chemtech Consulting Group, Inc for CLP total metals, w/TL to C Lichens fr D Lindelof | 2156423 |
| 6/15/2006 | Calvin Tanaka / I C F Consulting/Laboratory Data Consultants | Environmental Protection Agency - Region 9 | Data Validation Rpt: Case 32754, SDG Y1AM0, 3 soil samples collected 4/5/04, analyzed by A4 Scientific, Inc for pesticides/PCBs, w/TL to C Lichens fr D Lindelof | 2156421 |
| 6/27/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits soil vapor extraction pilot test work plan, w/attch | 1110563 |
| 6/30/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits memo fr CDM re analytical results for final vapor probes (VP26, VP27 & VP30), w/attch | 1110574 |
| 6/30/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Ltr: Discusses & transmits 6/30/06 CDM memo re analytical results for final vapor probes (VP26, VP27 & VP30), w/encl | 1110498 |
| 7/18/2006 | Sharon Wallin / Camp Dresser & McKee, Inc David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Memo: HVAC evaluation & chemical use inventory results & proposed indoor air quality sampling locations, w/TL to C Lichens fr E Modiano 7/18/2006 | 2157317 |
| 7/20/2006 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on soil vapor extraction pilot test workplan, CDM, 6/27/2006 | 2157318 |
| 7/27/2006 | Camp Dresser & McKee, Inc | Omega Chemical Site P R P Organized Group | Soil vapor extraction pilot test workplan, w/TL to C Lichens fr E Modiano 6/27/2006 | 2157316 |
| 7/28/2006 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on HVAC evaluation & chemical use inventory results & proposed indoor air quality sampling locations memo, CDM, 7/18/2006 | 2157319 |
| 8/8/2006 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits red-line & final versions of soil vapor extraction pilot test workplan (CDM, 8/4/06), w/attchs | 1110502 |
| 8/14/2006 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Approves soil vapor extraction pilot test workplan, CDM, 8/4/2006 | 2157320 |
| 8/18/2006 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Would like to obtain baseline indoor air data fr buildings identified in 5/15/2006 ltr before any HVAC modifications are made | 2157321 |
| 9/14/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 August 2006 sampling - project R06S92, SDG 06235B, 3 water samples collected 8/22/06, analyzed for VOCs, w/TL to C Lichens fr B Bettencourt 11/14/06 | 2156425 |
| 9/25/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 August 2006 sampling - project R06S92, SDG 06235B, 3 water samples collected 8/22/06, analyzed for 1,4-dioxane, w/TL to C Lichens fr B Bettencourt 9/29/06 | 2156426 |
| 10/5/2006 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits 10/5/06 CDM memo re results of 9/06 indoor air & ambient air sampling, results for Bishop, Los Angeles Carts, Medlin North, & Oncology Care facilities, w/attch & forward to L Parnass 10/5/06 | 1110500 |
| 10/19/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Concurs that RI and risk assessment rpts will be submitted during second week of 1/07, & detailed schedule for groundwater EE/CA & on-site soils RI/FS will be provided on 11/1/06, w/history | 1110497 |
| 10/23/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 aquifer test split sampling - project R06S98, SDG 06261A, 6 water samples collected 9/14-9/20/06, analyzed for 1,4-dioxane, w/TL to C Lichens fr B Bettencourt 10/26/06 | 2156427 |
| 10/26/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 aquifer test split sampling - project R06S98, SDG 06261A, 6 water samples collected 9/14-9/20/06, analyzed for VOCs, w/TL to C Lichens fr B Bettencourt 10/27/06 | 2156428 |
| 10/26/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 June 2006 air sampling - project R06S72, SDG 06255C, 4 air samples collected 9/8/06, analyzed for VOCs, soil gas, w/TL to C Lichens fr B Bettencourt 10/27/06 | 2156424 |
| 11/7/2006 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft schedule for on-site soils RI/FS, w/attch | 1110495 |
| 11/15/2006 | Sharon Wallin / Camp Dresser & McKee, Inc | Tom Perina / C H 2 M Hill, Inc | Email: Discusses & transmits soil vapor extraction pilot test data - part 1, w/attch & history | 1110504 |
| 11/15/2006 | Sharon Wallin / Camp Dresser & McKee, Inc | Tom Perina / C H 2 M Hill, Inc | Email: Discusses & transmits soil vapor extraction pilot test data - part 2, w/attch & history | 1110503 |
| 12/8/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 fall 2006 soil gas sampling - project R07S08, SDG 06299C, 2 air samples collected 10/23-10/27/06, analyzed for VOCs, soil gas, w/TL to C Lichens fr B Bettencourt | 2156430 |
| 12/12/2006 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 fall 2006 soil gas sampling - project R07S08, SDG 06313E, 2 air samples collected 11/8/06, analyzed for VOCs, soil gas, w/TL to C Lichens fr B Bettencourt 12/13/06 | 2156429 |
| 1/4/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Requests 2-week extension for submittal of RI & risk assessment rpts, & transmits reviesed schedule, w/attch | 1110506 |
| 1/5/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Responds to request for extension for submittal of RI & risk assessment rpts, w/history | 2157322 |
| 1/19/2007 | Camp Dresser & McKee, Inc | Omega Chemical Site P R P Organized Group Environmental Protection Agency - Region 9 | Draft on-site soils RI rpt, w/apps A-B & TL to C Lichens fr E Modiano (w/o compact disc) | 2157367 |
| 1/19/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits rpt text, section 4 tables, appendix A litho logs, appendix A analytical summary tables, & appendix B groundwater partitioning calculations fr draft on-site soils RI rpt, w/attchs | 1110528 |
| 1/19/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits updated draft schedule for on-site soil RI/FS, w/attch | 1110517 |
| 1/19/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits draft human health risk assessment for on-site soils, w/attch | 1110539 |
| 1/19/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits sections 1, 2, 3, and 5 figures, appendix A MIP logs, & appendix A physical properties results for draft on-site soils RI rpt, w/attchs | 1110545 |
| 1/22/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits revised draft human health risk assessment for on-site soils, w/attch | 1110546 |
| 1/22/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits section 4 & 5 figures for draft human health risk assessment for on-site soils, w/attch | 1110547 |
| 1/22/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Susan Medlin / Medlin & Son Engineering Service Inc | Ltr: Discusses & transmits results of indoor air sampling, w/encl | 2157333 |
| 1/22/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Linda Ponce De Leon / Oncology Care Medical Assoc | Ltr: Discusses & transmits results of indoor air sampling, w/encl | 2157334 |
| 1/22/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Favrizio Arenas / Los Angeles Carts Mfg, Inc | Ltr: Discusses & transmits results of indoor air sampling, w/encl | 2157335 |
| 1/22/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Kevin McCormack / Bishop Co | Ltr: Discusses & transmits results of indoor air sampling, w/encl | 2157336 |
| 2/5/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits appendices A-E for draft technical memo re soil vapor extraction pilot test initial findings, w/attch | 1110549 |
| 2/5/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits text, tables, & figures for draft technical memo re soil vapor extraction pilot test initial findings, w/attch | 1110548 |
| 2/5/2007 | David Chamberlin / Camp Dresser & McKee, Inc John Eisenbeis / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Technical Memo: Soil vapor extraction pilot test initial findings | 2157337 |
| 2/6/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits Figure D-3 fr App D of technical memo re soil vapor extraction pilot test initial findings, w//attch & history | 1110507 |
| 2/15/2007 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits comments on draft human health risk assessment for on-site soils (CDM, 1/19/07), & draft on-site soils RI rpt, w/attchs | 1110508 |
| 2/16/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on draft on-site soils RI rpt (CDM, 1/19/07) | 2157338 |
| 2/16/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on human health risk assessment of on-site soils (CDM, 1/19/07) | 2157339 |
| 3/7/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits addendum to technical memo, soil vapor extraction pilot test, w/attch | 1110509 |
| 3/7/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits soil gas analytical results for VOCs - on-site soils RI rpt, historic soil gas analytical results for VOCs, & Figure 1 - historic sampling locations, w/attchs | 1110510 |
| 3/7/2007 | John Eisenbeis / Camp Dresser & McKee, Inc David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Technical Memo: Addendum to 2/7/07 technical memo, soil vapor extraction pilot test | 2157340 |
| 3/10/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Email: Full response to comments re draft updated text for section 6.2 of FS for on-site soils, w/history | 1110559 |
| 3/12/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits tables 7-1 - 7-3, & redline & clean versions of revised sections 6.2 & 7.0 fr FS for on-site soils, w/attchs | 1110560 |
| 3/13/2007 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Concurs with conclusions in technical memo re soil vapor extraction pilot test initial findings (CDM, 2/5/07), & addendum to 2/5/07 technical memo re soil vapor extraction pilot test (CDM, 3/7/07) | 1110511 |
| 3/14/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Comments on tables 7-1 - 7-3 & revised sections 6.2 & 7.0 fr FS for on-site soils, w/history | 1110561 |
| 3/15/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on technical memo, soil vapor extraction test initial findings (CDM, 2/5/07), & addendum to 2/5/07 technical memo, soil vapor extraction pilot test (CDM, 3/7/07) | 2157341 |
| 3/16/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Clarifies comments re technical memo, soil vapor extraction test initial findings (CDM, 2/5/07), & addendum to 2/5/07 technical memo, soil vapor extraction pilot test (CDM, 3/7/07), w/history | 2157342 |
| 3/16/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits ltr fr OPOG re requesting extension for submitting revised RI and risk assessment rpts, w/attch | 1110512 |
| 3/19/2007 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 February 2007 split sampling - project R07S44, SDG 07054A, 3 water samples collected 2/21-2/22/07, analyzed for 1,4-dioxane, w/TL to C Lichens fr B Bettencourt | 2156431 |
| 3/21/2007 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 February 2007 split sampling - project R07S44, SDG 07054A, 3 water samples collected 2/21-2/22/07, analyzed for VOCs, w/TL to C Lichens fr B Bettencourt 3/22/07 | 2156432 |
| 4/3/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits ltr fr CDM re response to EPA comments for draft RI rpt & draft human health risk assessment for on-site soils, w/attch | 1110513 |
| 4/4/2007 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: No additional comments re revised draft FS for on-site soils, w/history | 1110562 |
| 4/6/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits memo re 2nd addendum to 2/5/07 technical memo, soil vapor extraction pilot test, w/attch | 2157343 |
| 4/9/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on draft RI rpt, & draft human health risk assessment for on-site soils (CDM, 4/3/07) | 2157344 |
| 4/11/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits revised section 5.4 of human health risk assessment for on-site soils, w/attch | 1110514 |
| 4/11/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits updated draft project schedule for on-site soils RI/FS, w/attch | 2157345 |
| 4/12/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Tom Perina / C H 2 M Hill, Inc | Email: Responds to question in email dated 4/12/07 re how elevations of MIPs were measured, w/history | 1110515 |
| 4/17/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits clean copy of revised draft human health risk assessment (HHRA) for on-site soils, & Apps A & B to HHRA, w/attchs | 1110516 |
| 4/17/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on 2nd addendum to 2/5/07 technical memo, soil vapor extraction pilot test (CDM, 4/6/07) | 2157346 |
| 4/18/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Comments on updated draft project schedule for on-site soils RI/FS, w/history | 2157347 |
| 4/18/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits track changes version of draft human health risk assessment for on-site soils, w/attch & history | 1110518 |
| 4/20/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits redline & clean versions of revised 2nd addendum to 2/5/07 technical memo, soil vapor extraction pilot test, w/o redline version | 2157348 |
| 4/20/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Responds to question re proposed soil vapor extraction pilot test | 1110519 |
| 4/24/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits app A litho logs fr revised on-site soils RI rpt, w/attch | 1110524 |
| 4/24/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits blueline-strikeout version & clean copy of performance standards verification plan (PSVP) for phase 1a area groundwater treatment system, w/attchs | 1110520 |
| 4/24/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits blueline-strikeout version of rpt text & sections 1-3 figures fr revised on-site soils RI rpt, w/attchs | 1110521 |
| 4/24/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits section 4 figures fr revised on-site soils RI rpt, w/attch | 1110522 |
| 4/24/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits section 5 figures & app A tables fr revised on-site soils RI rpt, w/attchs | 1110523 |
| 4/24/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Approves revised 2nd addendum to 2/5/07 technical memo, soil vapor extraction pilot test (CDM, 4/20/07) | 2157349 |
| 5/15/2007 | Kimiko Klein / CA Environmental Protection Agency - Dept of Toxic Substances Control | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Memo: Comments on draft human health risk assessment for on-site soils (CDM, 4/17/07) | 2157350 |
| 5/19/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Comments on revised text for pre-final FS for on-site soils, w/history | 1110577 |
| 5/19/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Concurs with revised 5/19 version of text for pre-final FS for on-site soils, w/history | 1110579 |
| 5/19/2007 | David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Gives revised 5/19 version of text for pre-final FS for on-site soils, w/history | 1110578 |
| 5/25/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Responds to question re editing of text in on-site soils RI rpt, w/history | 1110525 |
| 5/25/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on revised on-site soils RI rpt (CDM, 4/24/07) | 2157351 |
| 6/8/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on human health risk assessment for on-site soils (CDM, 4/17/07) | 2157352 |
| 6/20/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits blueline-strikeout version of rpt text, figures, 4-9, 5-1, 5-2, 5-7, & 5-8, & appendix A tables fr pre-final on-site soils RI rpt, w/attchs | 1110526 |
| 6/22/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits 6/22/07 ltr fr CDM re EPA 6/8/07 comments on human health risk assessment for on-site soils (CDM, 4/17/07), w/attch | 1110527 |
| 7/6/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Responds to email re list of items OPOG will be providing to EPA by COB on 7/13/07, w/history | 1110529 |
| 7/13/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits technical memo re ambient & indoor air analysis for human health risk assessment for on-site soils, attch A-1, attch A-2, & attch A-3, w/attchs | 1110530 |
| 7/16/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits attch A-2 to technical memo re ambient & indoor air analysis for human health risk assessment for on-site soils, w/attch | 1110531 |
| 7/18/2007 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 June 2007 soil gas sampling - project R07S73, SDG 07172A, 3 air samples collected 6/18-6/19/07, analyzed for VOCs, soil gas, w/TL to C Lichens fr B Bettencourt | 2156433 |
| 7/20/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Ltr: Discusses potential continued operation of soil vapor extraction pilot testing activities | 2157353 |
| 8/6/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits appendices (w/o app A-7) for revised draft human health risk assessment for on-site soils, w/attch | 1110533 |
| 8/6/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits revised draft human health risk assessment for on-site soils, w/attch | 1110532 |
| 8/7/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits appendices (w/app A-7) for revised draft human health risk assessment for on-site soils, w/attch | 1110534 |
| 8/28/2007 | Kimiko Klein / CA Environmental Protection Agency - Dept of Toxic Substances Control | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Memo: Comments on revised draft human health risk assessment for on-site soils (CDM, 8/6/07) | 2157354 |
| 8/31/2007 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits technical memo re expanded soil vapor extraction pilot test findings, w/attch | 1110535 |
| 8/31/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on revised draft human health risk assessment for on-site soils (CDM, 8/6/07) | 2157355 |
| 9/17/2007 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 August 2007 split sampling - project R07S86, SDG 07235C, 3 water samples collected 8/21-8/22/07, analyzed for VOCs, w/TL to C Lichens fr B Bettencourt | 2156434 |
| 9/25/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on rpt of findings for assessment of 2 buildings near site (KERNTEC Environmental, 8/30/07), & technical memo of recommendations on location of additional indoor air samples at Terra Pave (Locus Technologies, 9/7/07) | 2157356 |
| 9/27/2007 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 August 2007 split sampling - project R07S86, SDG 07235C, 3 water samples collected 8/21-8/22/07, analyzed for 1,4-dioxane, w/TL to C Lichens fr B Bettencourt | 2155137 |
| 10/1/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits ltr fr CDM re response to EPA comments dated 8/31/07 on human health risk assessment for on-site soils (CDM, 8/6/07), w/attch & history | 1110537 |
| 10/1/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits revised draft human health risk assessment for on-site soils, w/attch & history | 1110536 |
| 10/11/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Approves of revised draft human health risk assessment for on-site soils (CDM, 10/1/07) | 2157357 |
| 10/15/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on technical memo, expanded soil vapor extraction pilot test findings (CDM, 8/31/07) | 2157358 |
| 10/17/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Ltr: Request for proposed state ARARs for OU 1 vadose zone FS | 2157359 |
| 10/18/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Approves pre-final on-site soils RI rpt (CDM, 6/20/07) | 2157360 |
| 10/26/2007 | David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 Edward Modiano / De Maximis, Inc | Email: Discusses comments 3 & 4 in 10/11/07 conditional approval ltr for human health risk assessment for on-site soils, w/history | 1110540 |
| 10/26/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Discusses teleconference call for 10/29/07, & comment 3 in 10/11/07 conditional approval ltr for human health risk assessment for on-site soils, w/history | 1110538 |
| 10/29/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Accepts Section ES-6 of 10/1/07 on-site soils human health risk assessment (HHRA) as conclusion section in final HHRA | 2157361 |
| 11/5/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft on-site soils remedial action objectives (RAOs) & alternatives for FS for on-site soils, w/attch | 1110541 |
| 11/7/2007 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on draft on-site soils RAOs & alternatives (CDM, 11/5/07) | 2157362 |
| 11/9/2007 | Camp Dresser & McKee, Inc | Omega Chemical Site P R P Organized Group Environmental Protection Agency - Region 9 | Final human health risk assessment for on-site soils, w/apps A-E | 2155135 |
| 11/14/2007 | Camp Dresser & McKee, Inc | Omega Chemical Site P R P Organized Group Environmental Protection Agency - Region 9 | Compact Disc: Final on-site soils RI rpt (Apps A - B) | 2130552 |
| 11/14/2007 | Camp Dresser & McKee, Inc | Environmental Protection Agency - Region 9 Omega Chemical Site P R P Organized Group | Final on-site soils RI rpt, w/o compact disc - apps A-B | 2155134 |
| 11/30/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft table 2-1 for FS for on-site soils, w/attch | 1110542 |
| 12/4/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft alternatives & revised remedial action objective (RAO) 3 for FS for on-site soils, w/attchs | 1110543 |
| 12/21/2007 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft FS for on-site soils, w/attch & history | 1110544 |
| 1/4/2008 | Karen Taylor / Camp Dresser & McKee, Inc | Edward Modiano / De Maximis, Inc Christopher Lichens / Environmental Protection Agency - Region 9 Tom Perina / C H 2 M Hill, Inc | Email: Discusses & transmits cost summary pages for alternatives 1-4, & quote fr Thermal Remediation Services, Inc re alternative 4, w/attchs | 1110580 |
| 1/15/2008 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits replacement pages for on-site soils RI rpt, w/attch | 1110581 |
| 1/16/2008 | Sharon Wallin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Memo: Transmits replacement pages for final on-site soils RI rpt, w/attchs | 2157368 |
| 1/24/2008 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Comments on draft FS for on-site soils, w/history | 1110582 |
| 2/12/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on draft FS for on-site soils (CDM, 12/21/07) | 2157363 |
| 3/1/2008 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft comments on draft FS for on-site soils, w/history | 1110583 |
| 3/3/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Initial responses to draft comments on draft FS for on-site soils, w/history, w/history | 1110584 |
| 3/4/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Email: Responds to comments on draft FS for on-site soils, w/history, w/history | 1110585 |
| 3/6/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc Edward Modiano / De Maximis, Inc John Eisenbeis / Camp Dresser & McKee, Inc | Email: Gives soil vapor extraction enhancement language for FS for on-site soils | 1110553 |
| 3/6/2008 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Revises soil vapor extraction enhancement language for FS for on-site soils, w/history | 1110555 |
| 3/6/2008 | Barbara Bates / Environmental Protection Agency - Region 9 | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Transmits analytical testing results - project R08S30, SDG 08052A, 3 water samples, collected 2/20/08, analyzed for 1,4-dioxane, w/attch | 1110554 |
| 3/7/2008 | David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft updated text for section 6.2 of FS for on-site soils, w/attch | 1110556 |
| 3/7/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Discusses & transmits redline version of draft updated text for section 6.2 of FS for on-site soils, w/attch & history | 1110557 |
| 3/7/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Lori Parnass / CA Environmental Protection Agency - Dept of Toxic Substances Control | Email: Preliminary response to comments re draft updated text for section 6.2 of FS for on-site soils, w/history | 1110558 |
| 3/25/2008 | Environmental Protection Agency - Region 9 Laboratory | Environmental Protection Agency - Region 9 | Analytical testing results for OU 1 February 2008 split sampling - project R08S30, SDG 08052A, 3 water samples collected 2/20/08, analyzed for VOCs, w/TL to C Lichens fr B Bettencourt 3/31/08 | 2157313 |
| 4/23/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Discusses & transmits ltr re approval of revised draft FS for on-site soils (CDM, 3/20/08), w/attch | 1110564 |
| 4/23/2008 | David Chamberlin / Camp Dresser & McKee, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Request for clarification re general comment #4 in approval ltr for revised draft FS for on-site soils, w/history | 1110565 |
| 4/23/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | David Chamberlin / Camp Dresser & McKee, Inc | Email: Responds to request for clarification re general comment #4 in approval ltr for revised draft FS for on-site soils, w/history | 1110566 |
| 4/23/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Ltr: Comments on & approves of draft FS for on-site soils (CDM, 3/20/08) | 2157364 |
| 4/25/2008 | Tom Perina / C H 2 M Hill, Inc | David Chamberlin / Camp Dresser & McKee, Inc Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Responds to request for clarification re general comment #2 (VFLUX) in approval ltr for revised draft FS for on-site soils, w/history | 1110567 |
| 4/28/2008 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits draft document re streamlined RAO language in response to general comment #4 in approval ltr for revised draft FS for on-site soils, w/attch | 1110568 |
| 4/29/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Comments on draft document re streamlined RAO language in response to general comment #4 in approval ltr for revised draft FS for on-site soils, w/history | 1110569 |
| 5/1/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Discusses & transmits RAO supporting language for revised draft FS for on-site soils, w/attch | 1110570 |
| 5/7/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Approves of revised RAOs for final FS for on-site soils, w/history | 1110572 |
| 5/7/2008 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits revised RAOs for final FS for on-site soils, w/attch | 1110571 |
| 5/12/2008 | Edward Modiano / De Maximis, Inc | Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Discusses & transmits redline & clean versions of rpt text, plus complete version of pre-final FS for on-site soils, w/attchs | 1110573 |
| 5/16/2008 | Christopher Lichens / Environmental Protection Agency - Region 9 | Edward Modiano / De Maximis, Inc | Email: Asks for changes to be made to pre-final FS for on-site soils, w/history | 1110575 |
| 5/16/2008 | David Chamberlin / Camp Dresser & McKee, Inc | Edward Modiano / De Maximis, Inc Christopher Lichens / Environmental Protection Agency - Region 9 | Email: Gives revised text for pre-final FS for on-site soils, w/history | 1110576 |
| 5/21/2008 | Camp Dresser & McKee, Inc | Environmental Protection Agency - Region 9 Omega Chemical Site P R P Organized Group | Final FS for on-site soils, w/app A | 2157369 |
| 6/1/2008 | Environmental Protection Agency - Region 9 | - | Fact Sheet: Proposed plan for soil cleanup | 2157370 |
| 6/3/2008 | Environmental Protection Agency - Region 9 | - | List of US EPA guidance documents consulted during development & selection of response action for site | 2157371 |