Hayfork Water Treatment Plant Upgrade Project

Hayfork Water Treatment Plant Upgrade Project

Improvements at the Water Treatment Plant (WTP) site include constructing a new ~6,800 square-foot water treatment building, 600,000-gallon potable clearwell tank, 110,000-gallon backwash storage tank, backwash water recycle pump station, leach field and septic tank, and a potassium permanganate dosing station. Aggregate base would be installed throughout the WTP site to provide access to the new and the existing facilities, and a small parking area would be installed adjacent to the new water treatment building. Miscellaneous drainage improvements would be completed throughout the WTP site. Power poles, overhead electrical lines, a ground-mounted transformer, a Supervisory Control and Data Acquisition (SCADA) control system, ~3,415 feet of pipeline, and a new 400 kW emergency back-up generator would be installed at the WTP site, and modifications would be made to the regulation reservoir and existing 500,000-gallon water storage tank. SCADA equipment would be installed at the Ewing Pump Station; improvements would include either constructing a ~30-foot communications tower adjacent to the Pump Station building or mounting a ~30-foot tall antenna to the building.

Hayfork

Trinity

Unincorporated

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 2 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Transportation, Division of Transportation Planning (DOT), California Department of Water Resources (DWR), California Native American Heritage Commission (NAHC), California Natural Resources Agency, California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California State Lands Commission (SLC), State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Drinking Water, District 1, State Water Resources Control Board, Division of Water Quality, California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), State Water Resources Control Board, Divison of Financial Assistance

California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), State Water Resources Control Board, Divison of Financial Assistance

Water Facilities (Upgrades to existing Water Treatment Plant facilities.)(Type Water Treatment , MGD .000001)

Project Approval

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Cumulative Effects, Drainage/Absorption, Energy, Flood Plain/Flooding, Geology/Soils, Greenhouse Gas Emissions, Growth Inducement, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mandatory Findings of Significance, Mineral Resources, 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