Odor Mitigation Project


SCH Number
Lead Agency
Western Riverside County Regional Wastewater Authority
Document Title
Odor Mitigation Project
Document Type
MND - Mitigated Negative Declaration
Present Land Use
Wastewater Treatment/Agriculture/Public Facilities
Document Description
The project will address odor concerns at the WRCRWA treatment plant by implementing the following actions in the project: 1. Containment and Treatment of Cascading Weir Odors: This project includes covering the cascading weir and capturing and routing potential foul air to the existing biofilter. 2. Consolidate and Relocate Scrubber Stack: This project will consolidate the six existing chemical scrubber stacks into one combined stack and will relocate the new combined stack 700 feet west of the existing fence line. The new consolidated stack will be 40 feet tall. The odor ducting will include either fiberglass reinforced plastic (FRP), High Density Polyethylene (HDPE), or Stainless-steel ducting, whichever is determined to be the best fit for the project. 3. Future Project (if needed): After start-up and commissioning of the above project, offsite assessment should be completed to assess the need for adding a carbon polishing stage near the new stack location. Adding carbon polishing would entail adding carbon vessels with stacks and could entail adding booster fans or upsizing the new chemical scrubber fans.

Contact Information

Ronald Palacios
Agency Name
Western Municipal Water District
Contact Types
Lead/Public Agency

Agency Name
Ron Palacios
Contact Types
Project Applicant


Citywide, Countywide, Southern California
Cross Streets
River Road and Baron Drive
Total Acres
Parcel #
State Highways
91 Fwy and 15 Fwy (3 miles)
Corona Municipal
Ronald Reagan Elementary
Santa Ana River
3 So.
7 W.

Notice of Completion

State Review Period Start
State Review Period End
State Reviewing Agencies
California Air Resources Board (ARB), California Department of Conservation (DOC), California Department of Fish and Wildlife, Inland Deserts Region 6 (CDFW), California Department of Parks and Recreation, California Department of Transportation, District 8 (DOT), California Department of Transportation, Division of Aeronautics (DOT), California Department of Water Resources (DWR), 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, Santa Ana Region 8 (RWQCB), California State Lands Commission (SLC), Department of Toxic Substances Control, Office of Historic Preservation, State Water Resources Control Board, Division of Water Quality
Development Types
Water Facilities (Wastewater Treatment Plant)(MGD 14)
Local Actions
Site Plan
Project Issues
Aesthetics, Agriculture and Forestry Resources, Air Quality, Biological Resources, Cultural Resources, Geology/Soils, Greenhouse Gas Emissions, Hazards & Hazardous Materials, Hydrology/Water Quality, Land Use/Planning, Mineral Resources, Noise, Population/Housing, Public Services, Recreation, Transportation, Vegetation, Wetland/Riparian, Wildfire, Wildlife, Other


Disclaimer: The Governor’s Office of Planning and Research (OPR) accepts no responsibility for the content or accessibility of these documents. To obtain an attachment in a different format, 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. For more information, please visit OPR’s Accessibility Site.

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