Wastewater Treatment Plant Upgrade Project

7 Documents in Project


SCH Number
Lead Agency
City of Colusa
Document Title
Wastewater Treatment Plant Upgrade Project
Document Type
ADM - Addendum
Present Land Use
Industrial & agricultural
Document Description
This is an Addendum to the City of Colusa's IS/MND which was certified by City Council in March 2015 which discloses the potential effects of the seasonal diversion of wastewater to Powell Slough and reuse to grow a variety of agricultural crops. The project involves reuse of an existing WWTP pond for storage of irrigation water, construction of a small pump station and small pipeline and irrigation system for reuse of treated wastewater. The City intends to purchase land nearby for the reuse project. The impacts of the project were disclosed in the previous IS/MND. This addendum provides additional analysis regarding the City's water rights petition to the SWRCB for seasonal reuse of waster and the potential effects to Powell Slough. No significant impacts were determined from this additional analysis and no new mitigation measures were recommended.

Contact Information

Jesse Cain
Agency Name
City of Colusa
Contact Types
Lead/Public Agency


Cross Streets
Will S Green Avenue
State Highways
Hwy 20
Colusa Municipal AP
Colusa HS
Powell Slough, Colusa Basin Drain

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Fish and Wildlife, North Central Region 2 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 3 (DOT), California Highway Patrol, California Native American Heritage Commission (NAHC), California Regional Water Quality Control Board, Central Valley Sacramento Region 5 (RWQCB), Caltrans, Division of Aeronautics, Department of Water Resources, Resources Agency, State Water Resources Control Board, Division of Drinking Water, State Water Resources Control Board, Division of Water Rights, State Water Resources Control Board, Divison of Financial Assistance
Development Types
Industrial , Waste Treatment:Other (Wastewater)
Project Issues
Biological Resources, Hydrology/Water Quality, Wetland/Riparian

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 state.clearinghouse@opr.ca.gov or via phone at (916) 445-0613.

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