Injection of Calcium Polysulfide to Remediate Hexavelant Chromium in Groundwater and Soil, Torrance
2 Documents in Project
Summary
SCH Number
2005121174
Lead Agency
Regional Water Quality Control Board, Region 4 (Los Angeles)
Document Title
Injection of Calcium Polysulfide to Remediate Hexavelant Chromium in Groundwater and Soil, Torrance
Document Type
NEG - Negative Declaration
Received
Present Land Use
Heavy Industrial
Document Description
ExxonMobil proposes to install and operate a Calcium Polysulfide system to remediate Hexavelant Chromium in groundwater and soil beneath the site. The Calcium Sulfide system operations will discharge 200,000 gallons or less of the amendment solution which oxidizes the CrVI to trivalent Chromium below the water table and in the soil. A pilot test design will be performed, based on a bench scale test completed in August 2003, which showed almost 100% reduction of CrVI.
Contact Information
Name
Elizabeth Erickson
Agency Name
Regional Water Quality Control Board, Region 4 (Los Angeles)
Contact Types
Lead/Public Agency
Phone
Location
Cities
Torrance
Counties
Los Angeles
Cross Streets
Madronna and Del Amo
Zip
90504
Total Acres
<1
Parcel #
7352-012-017 Lot 3
State Highways
405
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 7 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), Department of Toxic Substances Control, Department of Water Resources, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Other (Remediation)
Local Actions
Remediation Permit
Project Issues
Hydrology/Water Quality
Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.