Toxic Substances Control, Department of
(Department of Toxic Substances Control)
Final Third Revised Interim Measures Workplan, Ducommun AeroStructures, El Mirage Facility
NOD - Notice of Determination
Present Land Use
Pursuant to Ch. 6.5 of the Health and Safety Code, the DTSC has approved the proposed Project to controlt he migration of contaminated groundwater at the Ducommun AeroStructures, El Mirage facility (formerly known as Aerochem). The project proposes to conduct groundwater extraction activities to achieve hydraulic control, reduce the source of contamination through soil vapor extraction, augment and increase monitoring of the existing groundwater system. Historical activities at the Site have resulted in the release of trichloroethene (TCE), tetrachloroethene (PCE) and some metals, specifically hexavalent chromium, to soil and groundwater. The project activities would be conducted in accordance with the Final Third Revised Interim Measures Workplan, El Mirage Facility El Mirage, CA, dated Oct. 14, 2005 and Revised Sept. 2010.
(1) The project will have a significant impact on the environment
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
(3) Mitigated measures were made a condition of the approval of the project
(4) A mitigation reporting or monitoring plan was adopted for this project
(5) A Statement of Overriding Considerations was adopted for this project
(6) Findings were made pursuant to the provisions of CEQA
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