Title

Inland Empire Utilities Agency Regional Wastewater System Improvements Program

Document Number

N2022003

Document Type

CATEX

Project Description

The Regional Wastewater System Improvements Program includes the Philadelphia Force Main Improvements project, the Carbon Canyon Water Recycling Facility (CCWRF) Asset Management and Improvements Project, the Regional Water Recycling Plant Number 5 Expansion Project, and the Regional Water Recycling Plant Number 1 Solids Thickening Project. The projects will implement improvements across multiple facilities within the wastewater system. • The Philadelphia Force Main Improvements project will increase the flow capacity and overall efficiency of the lift stations that convey industrial wastewater and safeguard the high quality of recycled water. The project will improve maintenance access and remove accumulated deposit buildup by providing new force main pipelines with clean-out vaults for the Philadelphia Lift Station and miscellaneous upgrades to the Philadelphia Lift Station. • The Carbon Canyon Water Recycling Facility (CCWRF) Asset Management and Improvements Project will enhance the facility’s ability to reliably produce high quality recycled water and simplify operation and maintenance of the facility. The project will construct improvements to the primary, secondary, and tertiary treatments to ensure treated wastewater meets Title 22 requirements. The Project will replace the existing influent screens, odor control, and the aeration blowers. • The RP-5 Expansion project includes two main components: Their analysis confirmed the following treatment needs: o Expand RP-5 Liquids Treatment System to meet service area needs o Relocate RP-2 Solids Treatment to RP-5 and build a new solids treatment plant at RP-5 • The RP-1 Solids Thickening Project includes improvements to RP-1 systems to increase the capacity to an equivalent of 60-mgd AADF to handle solids from both RP-1 and RP-4 and includes a new rotary drum thickener (RDT) building and three new acid-phase digesters.

EPA Region/Headquarters Office

OW

State or Territory

CA

Point of Contact

Leslie Temple
202-564-4734
temple.leslie@epa.gov

Date of Issuance

2022-02-24 00:00:00.0

Website

https://www.epa.gov/wifia