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.
Risk Assessment Work Plan
| Type | Download | Document Name | Publish Date | Size |
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Click to Download | Determination of Thallium Ambient/Background Concentration at the Pacific Gas and Electric Company Topock Compressor Station, Needles California | August 13, 2019 | 772.89 KB |
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Click to Download | Final Human Health and Ecological Risk Assessment Work Plan Addendum 2, PG&E Topock Compressor Station, Needles, California | June 29, 2015 | 5.83 MB |
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Click to Download | Human Health and Ecological Risk Assessment Work Plan Addendum 2, PG&E Topock Compressor Station, Needles, California | May 7, 2014 | 5.56 MB |
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Click to Download | DOI Revised Technical Memorandum Recreational Visitor Exposure Scenario for Federal Land, PG&E Topock Compressor Station Remedial Project, California | April 18, 2014 | 603.77 KB |
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Click to Download | Final RAWP Addendum 2 - Scope, Pacific Gas and Electric Company Topock Compressor Station, Needles, California | January 28, 2013 | 29.36 KB |
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Click to Download | Topock Compressor Station – Final Technical Memorandum 4: Ecological Comparison Values for Additional Detected Chemicals in Soil. | August 18, 2009 | 254.79 KB |
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Click to Download | Risk Assessment Work Plan Addendum | February 4, 2009 | 382.76 KB |
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Click to Download | Human Health and Ecological Risk Assessment Work Plan, PG&E Topock Compressor Station, Needles, California | August 25, 2008 | 11.27 MB |
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Click to Download | Topock Compressor Station – Technical Memorandum 3: Ecological Comparison Values for Metals and Polycyclic Aromatic Hydrocarbons in Soil. | May 28, 2008 | 411.24 KB |
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Click to Download | Topock Compressor Station – Ecological Exposure Parameters, Bioaccumulation Factors, and Toxicity Reference Values | June 19, 2007 | 693.41 KB |
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Click to Download | Topock Compressor Station – Revised Technical Memorandum on Ecological Conceptual Site Models, Assessment Endpoints, and Receptors of Concern | April 19, 2007 | 535.79 KB |