Arsenic Removal at Mammoth Community Water District Groundwater Treatment Plants #1 and #2
3 Documents in Project
Summary
SCH Number
2005102034
Lead Agency
Mammoth County Water District
Document Title
Arsenic Removal at Mammoth Community Water District Groundwater Treatment Plants #1 and #2
Document Type
NEG - Negative Declaration
Received
Present Land Use
Water Facilities, Modification to existing groundwater treatment facilities; Resort
Document Description
The Mammoth Community Water District is proposing to modify the water treatment process at both of its groundwater treatment plants to include arsenic removal utilitizing the proven technology of ferric chloride treatment. This project will involve the installation of chemical feed equipment at both treatment plants to inject ferric chloride to the water treatment process. The arsenic will precipitate out of the well water, be removed on existing iron and manganese filters, and will eventually be sent to the wastewater collection system through the filter backwash process. Precipitated arsenic will eventually be disposed of at the Benton Crossing Landfill with the wastewater treatment solids, or sludge.
Contact Information
Name
Gary Sisson
Agency Name
Mammoth County Water District
Contact Types
Lead/Public Agency
Phone
Location
Cities
Mammoth Lakes
Counties
Mono
Cross Streets
Old Mammoth Road and Waterford; Meridian Boulevard and Majestic Pines Drive
Parcel #
32-04-14; 22-33-50
State Highways
203
Township
4S, 3S
Range
27E
Section
3, 34
Base
MDBM
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
Cal Fire, California Department of Conservation (DOC), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Health Care Services (DHCS), California Department of Parks and Recreation, California Department of Transportation, District 9 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Lahontan Victorville Region 6 (RWQCB), Department of Toxic Substances Control, Department of Water Resources, Office of Historic Preservation, Resources Agency, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Water Facilities
Project Issues
Aesthetics, Air Quality, Cultural Resources, Geology/Soils, Hazards & Hazardous Materials, Hydrology/Water Quality, Noise, Public Services, Schools/Universities, Solid Waste, Wetland/Riparian, Wildfire, Wildlife
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.