Disinfection Byproduct Reduction Project
Summary
SCH Number
2024080630
Lead Agency
Westhaven Community Services District
Document Title
Disinfection Byproduct Reduction Project
Document Type
MND - Mitigated Negative Declaration
Received
Present Land Use
Lands adjacent to the project site are developed with low-density single-family residences; surrounding lands are forested open space. General Plan: Public Lands (P), Residential Estates (RE 1-5), Rural Residential (RR), Rural Village (RV). Zoning: Single-Family Residential-Combining Districts: Manufactured Home/Streams and Riparian Corridors Protection (RS-X-M/R); Unclassified (U), and Residential Agriculture-2.5 acre minimum lot size (RA-2.5).
Document Description
The project entails improvements to the Westhaven Community Services District’s (District) water system that are required to improve the water treatment process, replace aging and undersized infrastructure, provide additional water storage, and improve fire flows to ensure a reliable water supply in the District’s service area.
Waterlines and electrical conduit would be installed from the 4th Avenue Well to the Water Treatment Plant (WTP) site. Fire hydrants would be installed on 4th Avenue. Existing water meters and meter boxes adjacent to 4th Avenue would be replaced. Improvements at the WTP site include construction of a new WTP building, installation of a septic tank and leach field, installation of two propane tanks, an emergency back-up generator, a Battery Energy Storage System, and a hydropneumatic tank, installation of drainage improvements, improvements to the existing access driveway, and installation of a ~200,000 gallon glass-fused bolted steel water tank with an aluminum domed roof. Sand and gravel media in both slow sand filters would be replaced. Appurtenant piping, drainage, and electrical improvements would be completed. Photovoltaic (PV) solar panels would be installed on the roof of the WTP building. A Supervisory Control and Data Acquisition (SCADA) system would be installed. A “Humboldt crossing” on Two Creek would be removed. Improvements at the WTP require conversion of a single-phase power alignment to 480V/3-phase as well as extension of powerline to the new WTP facilities. This would entail replacing existing Pacific Gas and Electric (PG&E) power poles, overhead powerlines, and appurtenant facilities, and extending an overhead electrical line to a new power pole at the WTP. See Section 3.0, Project Description, in the IS/MND
Contact Information
Name
Paul Rosenblatt
Agency Name
Westhaven Community Services District
Job Title
General Manager
Contact Types
Lead/Public Agency / Project Applicant
Address
Phone
Location
Coordinates
Cities
Westhaven (Unincorporated)
Counties
Humboldt
Regions
Unincorporated
Cross Streets
4th Ave., Transit Ave., Railroad Ave., Cedar Ave., Spruce Ave.
Zip
95570
Total Acres
1.5
Parcel #
514-133-001, 513-181-014
State Highways
101
Railways
None
Airports
None
Schools
None
Waterways
Two Creek, Little River; Luffenholtz, Eighteen, Coon, Grassy, and Freeman Creeks; Pacific Ocean
Township
8N
Range
1E
Section
31, 32
Base
HM
Notice of Completion
State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Coastal Commission (CCC), California Department of Conservation (DOC), 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 Toxic Substances Control (DTSC), California Department of Transportation, District 1 (DOT), California Department of Water Resources (DWR), California Energy Commission, California Governor's Office of Emergency Services (OES), 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, 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, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Water Facilities (Water Treatment, Storage, and Distribution System Improvements)(Type Miscellaneous, MGD 0.05)
Local Actions
Project Approval
Project Issues
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, Schools/Universities, Septic System, Sewer Capacity, Solid Waste, Transportation, Tribal Cultural Resources, Utilities/Service Systems, Vegetation, Wetland/Riparian, Wildfire
Public Review Period Start
Public Review Period End
Attachments
Draft Environmental Document [Draft IS, NOI_NOA_Public notices, OPR Summary Form, Appx,]
Notice of Completion [NOC] Transmittal form
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