Atascadero Mutual Water Company Water Treatment Plant Project
2 Documents in Project
Summary
SCH Number
2025111111
Lead Agency
City of Atascadero
Document Title
Atascadero Mutual Water Company Water Treatment Plant Project
Document Type
NOD - Notice of Determination
Received
Posted
1/29/2026
Document Description
The proposed Atascadero Mutual Water Company (AMWC) Water Treatment Plant (WTP) project involves construction of a facility to treat for per- and polyfluoroalkyl substances detected within the AMWC production wells located adjacent to the Salinas River between State Route 41 and Chico Road. The WTP would be located within a portion of AMWC’s existing Corporation Yard at the northwest corner of the overpass of State Route 41 over Sycamore Road. Several components of the WTP would be located under metal canopies, the treatment vessels would be located in the open air, and the Operations Center would be enclosed in a prefabricated metal building that would be about 20 feet in height and approximately 3,800 square feet in size. Chemical storage facilities would be located under a metal canopy with covered chain-link fencing surrounding the chemical containment areas. The project includes installation of new outdoor lighting, including downward-facing pole-mounted lights and chain-mounted LED lights under canopies (shielded by quarter-height panels). Native landscape plants would be placed along the Sycamore Road frontage. Due to existing geotechnical conditions at the project site, ground improvements including over-excavation of materials, rapid impact compaction, and reconstruction of the over-excavation materials into a structural backfill would be conducted in certain areas to densify the ground beneath the project site and improve the soil conditions to be suitable for the proposed project. The proposed project would not result in increased groundwater extraction from AMWC’s production wells beyond baseline conditions.
Contact Information
Name
Kelly Gleason
Agency Name
City of Atascadero
Job Title
Planning Manager
Contact Types
Lead/Public Agency
Phone
Email
Name
John Neil
Agency Name
Atascadero Mutual Water Company
Job Title
General Manager
Contact Types
Project Applicant
Phone
Email
Name
Ethan Knox
Agency Name
Rincon Consultants, Inc.
Job Title
Environmental Planner
Contact Types
Project Applicant
Phone
Location
Coordinates
Cities
Atascadero
Counties
San Luis Obispo
Regions
Citywide
Cross Streets
S.R. 41 at Sycamore Road
Zip
93422
Total Acres
4.5
Parcel #
028-111-008, 028-111-006
State Highways
S.R. 41, US-101
Railways
Southern Pacific Railroad
Airports
N/A
Schools
Atascadero Middle School, Atascadero High School
Waterways
Salinas River, Atascadero Creek
Other Location Info
Schools Cont, • Atascadero Middle School • Atascadero High School • North County Christian School • Atascadero Fine Arts Academy • Shepherd Christian Preschool • Monterey Road Elementary School • Children’s House Montessori School • Del Rio Continuation High School • West Mall Alternative School • San Benito Elementary School • The Learning Tree Preschool Center • Playtime Discoveries • Little Wings of Atascadero • Little Ark Preschool
Notice of Determination
Approving Agency
City of Atascadero
Approving Agency Role
Lead Agency
Approved On
County Clerk
San Luis Obispo
Final Environmental Document Available at
Atascadero City Hall, 6500 Palma Ave., Atascadero, CA 93422
Determinations
(1) The project will have a significant impact on the environment
No
(2a) An Environmental Impact Report was prepared for this project pursuant to the provisions of CEQA
No
(2b) A Mitigated or a Negative Declaration was prepared for this project pursuant to the provisions of CEQA
Yes
(2c) An other document type was prepared for this project pursuant to the provisions of CEQA
No
(3) Mitigated measures were made a condition of the approval of the project
Yes
(4) A mitigation reporting or monitoring plan was adopted for this project
Yes
(5) A Statement of Overriding Considerations was adopted for this project
No
(6) Findings were made pursuant to the provisions of CEQA
No
Attachments
Notice of Determination
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