Rio Vista Water Treatment Plant Expansion

6 Documents in Project


SCH Number
Lead Agency
Castaic Lake Water Agency
Document Title
Rio Vista Water Treatment Plant Expansion
Document Type
EIR - Draft EIR
Present Land Use
Open Space, Community Commercial, Residential / Specific Planning
Document Description
The project is the expansion of the existing Castaic Lake Water Agency (CLWA) Rio Vista Water Treatment Plant (RVWTP) treatment capacity from 30 million gallons per day (mgd) to 60 mgd (16,790 acre-feet per year [AFY] to 33,580 AFY [Average Annual Load]) in response to current and new water quality standards, to improve reliability to meet existing customer demands, and planned future demand. The 16,790 AFY of additional treated water provided by the project would be able to serve between approximately 17,309 and 18,054 households, or between approximately 55,389 and 57,773 persons. Additionally, modifications to the existing ozone treatment system at the RVWTP would be completed.

Contact Information

Ken Petersen
Agency Name
Castaic Lake Water Agency
Contact Types
Lead/Public Agency


Santa Clarita
Los Angeles
Cross Streets
Bouquet Canyon Road, Parkwood Lane, Bridgeport Lane, Newhall Ranch Road
Total Acres
~ 1
State Highways
Bouquet Canyon School, Bridgeport School, James Foster School, C
Santa Clara River
Other Information
Schools: Charles Helmers School, Highlands School, Rosedell School, Santa Clarita School, Saugus HS, Valencia HS, Arroyo Seco JH.

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Department of Fish and Wildlife, South Coast Region 5 (CDFW), California Department of Health Care Services (DHCS), California Department of Parks and Recreation, California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Los Angeles Region 4 (RWQCB), Department of Toxic Substances Control, Department of Water Resources, Resources Agency, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance, California Department of Transportation, District 7 (DOT)
State Reviewing Agency Comments
California Department of Transportation, District 7 (DOT)
Development Types
Water Facilities
Local Actions
Project Approval
Project Issues
Cumulative Effects, Growth Inducement, Hazards & Hazardous Materials, Noise, Population/Housing, Transportation

Disclaimer: The document was originally posted before CEQAnet had the capability to host attachments for the public. To obtain the original attachments for this document, please contact the lead agency at the contact information listed above. You may also contact the OPR via email at or via phone at (916) 445-0613.

Download CSV New Search Print