Click on the boxes in the flow-chart below to view documents from each phase of the process.
Important Notice Accessibility of Older Documents Expires After December 30, 2020
All documents published before January 1, 2020 will no longer be accessible on this website after December 30, 2020. After December 30, 2020 all older documents can be accessed through the project repositories or by direct request to California Department of Toxic Substances Control.
RCRA Facility Investigation/Remedial Investigation (RFI/RI)
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Click to Download | DOI Request for PG&E Topock Compressor Station Soil Investigation Data Package | May 9, 2018 | 236.52 KB |
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Click to Download | DOI Request for PG&E Topock Compressor Station Soil Investigation Data Package - Figures | May 9, 2018 | 14.43 MB |
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Click to Download | DOI Request for PG&E Topock Compressor Station Soil Investigation Data Package - Part A Investigation | May 9, 2018 | 74.27 MB |
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Click to Download | DOI Request for PG&E Topock Compressor Station Soil Investigation Data Package - Part B Investigation | May 9, 2018 | 27.16 MB |
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Click to Download | DOI Request for PG&E Topock Compressor Station Soil Investigation Data Package - Tables | May 9, 2018 | 5.18 MB |
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Click to Download | Ambient Study of Dioxins and Furans at the Pacific Gas and Electric Company, Topock Compressor Station, Needles, California | October 13, 2017 | 2.31 MB |
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Click to Download | Soil DQE Report: Review of Analytical Data for the RCRA Facility Investigation/Remedial Investigation for Soil at the Topock Compressor Station | July 14, 2017 | 1018.34 KB |
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Click to Download | Revised Work Plan for Ambient/Background Study of Dioxins and Furans at the Pacific Gas and Electric Company Topock Compressor Station, Needles, California | March 2, 2017 | 1.52 MB |
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Click to Download | Topock Soil RFI/RI – Plan to Address Data Gaps Identified During Work Plan Implementation (DGWP‐3) | September 21, 2016 | 4.52 MB |
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Click to Download | Topock Soil RFI/RI – Plan to Address Data Gaps Identified During Work Plan Implementation (DGWP‐2) | February 12, 2016 | 1.24 MB |
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Click to Download | Cocopah Comments on the January 13, 2016 Topock Soil RFI/RI - Plan to Address Data Gaps Identified During Work Plan Implementation (DG-WP-01) | January 29, 2016 | 409.68 KB |
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Click to Download | Hualapai Comments on the January 13, 2016 Topock Soil RFI/RI - Plan to Address Data Gaps Identified During Work Plan Implementation (DG-WP-01) | January 27, 2016 | 176.21 KB |
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Click to Download | FMIT Comments on the January 13, 2016 Topock Soil RFI/RI - Plan to Address Data Gaps Identified During Work Plan Implementation (DG-WP-01) | January 25, 2016 | 420.58 KB |
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Click to Download | Topock Soil RFI/RI – Plan to Address Data Gaps Identified During Work Plan Implementation (DG‐WP‐1) | January 13, 2016 | 2.09 MB |
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Click to Download | Addendum to the RCRA Facility Investigation/Remedial Investigation Report, Volume I, PG&E Topock Compressor Station, Needles, California | May 30, 2014 | 12.14 MB |
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Click to Download | Appendix B - Addendum to the RCRA Facility Investigation/Remedial Investigation Report, Volume I, PG&E Topock Compressor Station, Needles, California | May 30, 2014 | 91.76 MB |
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Click to Download | Errata to the Final Soil RFI/RI Work Plan, Pacific Gas and Electric Company, Topock Compressor Station | January 27, 2014 | 3.35 MB |
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Click to Download | Revised Final Soil RFI/RI Work Plan Index | January 16, 2013 | 31.5 KB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Main Text | January 14, 2013 | 12.08 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix A Main Text and Appendices A, B, D, E and F Part 1 of 2 | January 14, 2013 | 11.15 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix A Main Text and Appendices A, B, D, E and F Part 2 of 2 | January 14, 2013 | 22.76 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix A, Sub Appendix C Part 1 of 3 | January 14, 2013 | 28.76 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix A, Sub Appendix C Part 2 of 3 | January 14, 2013 | 29.91 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix A, Sub Appendix C Part 3 of 3 | January 14, 2013 | 31.86 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix B Part 1 of 2 | January 14, 2013 | 39.15 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix B Part 2 of 2 | January 14, 2013 | 25.07 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California - Appendices C and D | January 14, 2013 | 2.47 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California - Appendices E,F,G,H,I and J | January 14, 2013 | 10.17 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix K Engineering Drawings Table Part 1 of 2 | January 14, 2013 | 42.25 MB |
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Click to Download | Revised Final Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California – Appendix K Engineering Drawings Table Part 2 of2 | January 14, 2013 | 37.78 MB |
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Click to Download | DTSC Comments on the Soil RCRA Facility Investigation/Remedial Investigation Work Plan PG&E Topock Compressor Station, Needles, California | August 19, 2011 | 1.79 MB |
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Click to Download | Federal Comments on the Soil RCRA Facility Investigation/Remedial Investigation Work Plan PG&E Topock Compressor Station, Needles, California | August 16, 2011 | 191.36 KB |
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Click to Download | FMIT comments on May 2011 PG&E draft report titled Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California | August 1, 2011 | 192.78 KB |
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Click to Download | Hualapai Tribe Comments on the Soil RCRA Facility Investigation/Remedial Investigation Work Plan PG&E Topock Compressor Station, Needles, California | July 21, 2011 | 102.38 KB |
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Click to Download | Soil RCRA Facility Investigation/Remedial Investigation Work Plan, PG&E Topock Compressor Station, Needles, California | May 6, 2011 | 75.31 MB |
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Click to Download | Soil Background Investigation at the PG&E Topock Compressor Station, Needles, California | May 15, 2009 | 4.01 MB |
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Click to Download | Final Soil and Sediment Data Usability Assessment Technical Memorandum, PG&E Topock Compressor Station | August 28, 2008 | 2.43 MB |
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Click to Download | Responses to Agency Comments on Soil and Sediment Data Usability Assessment Technical Memorandum, PG&E Topock Compressor Station | November 7, 2007 | 146.27 KB |
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Click to Download | Soil and Sediment Data Useability Assessment Technical Memorandum | May 30, 2006 | 4.72 MB |