CUP25-0009/IS25-0023 Winterhaven County Water District

CUP25-0009/IS25-0023 Winterhaven County Water District

The Winterhaven County Water District applied for a Conditional Use Permit (CUP) for the replacement of a Water Well & improvements of the Water Treatment Plant. The WCWD provides potable water to the small rural community of Winterhaven, California, including approximately 107 residential connections, 22 commercial connections, and a 495-space RV park. The District's system currently relies entirely on Well No. 3, which produces about 350 gallons per minute (gpm). Well No. 2, which was installed about 40 years ago, has been out of service since 2016 due to sand infiltration caused by structural failure of its well screen and gravel pack. Operating only a single water supply well puts the District out of compliance with California Title 22 drinking water regulations, which require at least two independent water sources to ensure reliable and secure water service. This deficiency poses a risk to public health, sanitation, and fire protection if the existing well were to fail or require maintenance. In addition, the system has experienced high manganese and total dissolved solids (TDS) levels, and the current treatment plant requires upgrades to reliably remove manganese. To correct these deficiencies, WCWD will construct a new groundwater well to replace Well No. 2, located at the existing treatment plant site about 50 feet from the other well. The new Well No. 2 will be drilled to about 500 feet deep, with a 10-inch casing and an estimated production capacity of 400 GPM. (645.20 ac-ft/yr). It will include: A new submersible well pump and electrical system, pipeline connections into the existing treatment and distribution systems, a concrete pad and steel shade structure for protection, replacement of the perimeter fencing and gate around the treatment plant. The replacement of Well No. 2 is essential to restoring a safe, reliable, and compliant water supply system for the Winterhaven community.

Winterhaven

Imperial

Countywide, Unincorporated

California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 11 (DOT), California Department of Water Resources (DWR), California Fish and Game Commission (CDFGC), California Highway Patrol (CHP), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, Colorado River Basin Region 7 (RWQCB), Colorado River Board, Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 26, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance

Water Facilities (Replacement of Water Well)(Type Water Well, MGD 0.575615)

Use Permit

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Economics/Jobs, Energy, Fiscal Impacts, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Noise, Population/Housing, Public Services, Recreation, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire