LCSD Wastewater Treatment Facility and Effluent Disposal Improvement Project

LCSD Wastewater Treatment Facility and Effluent Disposal Improvement Project

Loleta Community Services District (LCSD) maintains and operates a wastewater treatment system that serves the community of Loleta. LCSD is planning to modify its wastewater treatment facility (WWTF) and effluent discharge system to meet the terms of its current National Pollutant Discharge Elimination System (NPDES) permit, including waste discharge requirements for recycled water (beneficial reuse for irrigation of agricultural land becomes the discharge point instead of surface water). Current and future effluent limitations for pollutants cannot be met by the existing wastewater treatment and disposal process. The proposed project includes a land acquisition and new wastewater treatment facility component (including geotechnical borings), rehabilitation of the existing waste discharge pipe component, and land application of treated effluent component. LCSD proposes to expand the existing 0.48-acre WWTF parcel (APN 309-211-006) into an approximately 0.77-acre portion of an adjacent 55.47-acre parcel (APN 309-191-012) using a lot line adjustment, which requires an amendment to the local coastal plan (Eel River Area Plan) and a zone reclassification. A new WWTF will be constructed, and the old WWTF will be demolished. The new WWTF will include a new headworks with pre-screening in the form of a mechanical screen. The proposed secondary treatment system is an extended aeration system. Whereas the existing WWTF uses chlorine gas for disinfection, this project proposes installing an ultraviolet (UV) disinfection system. Currently, LCSD contracts to have waste sludge hauled to another facility for dewatering and disposal. Because of the high cost of paying a third party to haul and dewater sludge, LCSD plans to install a dewatering press at the new WWTF to reduce the cost of hauling and disposal. A concrete retaining wall will be constructed along the western edge of the new WWTF, and all new WWTF structures will be elevated (or flood-proofed) to at least 1 foot above the 100-year base flood elevation.

Loleta

Humboldt

Northern California, Unincorporated

California Coastal Commission (CCC), California Department of Fish and Wildlife, Northern and Eureka Region 1 (CDFW), California Department of Forestry and Fire Protection (CAL FIRE), California Department of Parks and Recreation, California Department of Resources Recycling and Recovery, California Department of Toxic Substances Control (DTSC), California Department of Transportation, District 1 (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 Public Utilities Commission (CPUC), California Regional Water Quality Control Board, North Coast Region 1 (RWQCB), California State Coastal Conservancy (SCC), California State Lands Commission (SLC), Office of Historic Preservation, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Quality, State Water Resources Control Board, Divison of Financial Assistance

Waste Treatment:Sewer (MGD 0.081)

General Plan Amendment, Site Plan, Rezone, Use Permit, Coastal Permit

Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Coastal Zone, 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, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire