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.
|Type||Download||Document Name||Publish Date||Size|
|Click to Download||Final Groundwater Background Study, Steps 3 and 4: Revised Final Report of Results - Text, Tables, Figures and Appendices A, C - F||November 6, 2009||4.53 MB|
|Click to Download||Groundwater Background Study, Steps 3 and 4: Revised Final Report of Results, PG&E Topock Compressor Station, Needles, California||November 6, 2009||4.09 MB|
|Click to Download||Preliminary Evaluation of Data for the Groundwater Background Study||September 14, 2006||4.66 MB|
|Click to Download||Background Study, Step 2 Results||September 23, 2005||4.85 MB|
|Click to Download||Background Study, Step 1 Results||March 10, 2005||24.84 MB|
|Click to Download||Background Study - Draft Work Plan: Assessing Background Metals Concentrations in Groundwater||June 30, 2004||3.48 MB|