Valley County Water District SA1 Treatment Facility Improvements - Single Pass Ion Exchange Equipment

2 Documents in Project


SCH Number
Lead Agency
Valley County Water District
Document Title
Valley County Water District SA1 Treatment Facility Improvements - Single Pass Ion Exchange Equipment
Document Type
NEG - Negative Declaration

Document Description
New modular type ion exchange equipment will be added to the existing regenerable resin ion exchange (ISEP) equipment. The new equipment utilizes a National Safety Foundation (NSF) approved anion resin for the removal of Perchlorate, and the spent resin will require disposal once it has reached saturation point. The modular system will be set up in a lead-lag configuration, where source water will flow from the top of the lead vessel, discharged at the bottom, and continue to the top of the lag vessel. By removing the regeneration process of the resin, the brine solution generated will no longer contain any Perchlorate contamination, resulting in significant reduction of salt usage and brine disposal. The existing ISEP system would be modified to remove solely Nitrates. The proposed ion exchange equipment will be placed on a new concrete pad located across from the existing reservoir on the south side of the access road. The influent to the new ion exchange equipment will be connected at a point downstream of the existing air stripper booster station. A new booster pumps station with five (5) booster pumps and wetwell may be installed downstream of the new ion exchange equipment to increase the pressure for the water to make it through the remaining ISEP and UV treatment. The proposed booster station will be located adjacent to the single pass ion exchange equipment to the west. The booster pumps will be housed inside a new building similar in style to the existing booster building on-site. The wetwell will be constructed below grade under the new booster station.

Contact Information
Brian Dickinson
Valley County Water District
Lead/Public Agency
14521 E. Ramona Boulevard
Baldwin Park, CA 91706

Phone : (626) 338-7301


Baldwin Park Irwindale West Covina
Los Angeles
Cross Streets
Lante Street & Olive Street
Parcel #

Notice of Completion

Review Period Start
Review Period End
Development Type
Water Facilities (Type Treatment Plant)
Project Issues
Aesthetics Agriculture and Forestry Resources Air Quality Biological Resources Cultural Resources Cumulative Effects Geology/Soils Hazards & Hazardous Materials Hydrology/Water Quality Land Use/Planning Mineral Resources Noise Population/Housing Public Services Recreation Transportation Wetland/Riparian Utilities and Service Systems
Reviewing Agencies
California Department of Fish and Wildlife, South Coast Region 5 (CDFW) California Department of Health Care Services (DHCS) California Department of Parks and Recreation California Department of Transportation, District 7 (DOT) California Native American Heritage Commission (NAHC) California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB) Department of Toxic Substances Control Department of Water Resources Resources Agency State Water Resources Control Board, Division of Water Rights State Water Resources Control Board, Divison of Financial Assistance

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 or via phone at (916) 445-0613.

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