Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. Water Infrastructure Finance and Innovation Act (WIFIA)

Stockton Regional Wastewater Control Facility Project

Stockton aeration basin construction
Borrower: City of Stockton Public Finance Authority
Location: Stockton, California
WIFIA Loan Amount: $108 million
Total WIFIA Project Costs: $219 million
Population Served by Project: 314,000 people
Number of Jobs Created: 701 jobs
 

Project Description

The Regional Wastewater Control Facility Project will rehabilitate the existing system to update outdated infrastructure and comply with effluent limits for nitrogen. This will include construction of new aeration basins and associated secondary clarifiers, consolidation of control room operations, and rehabilitation other components of the system. By rehabilitating its aging infrastructure and technology, the city of Stockton will reduce the amount of nitrogen discharged to surface water and improve the water quality in the California Delta.

Project Benefits

  • Rehabilitates and replaces aging technology, equipment, and infrastructure.
  • Helps the city of Stockton meet new National Permit Discharge Elimination System permit requirements, particularly lower effluent limits for nitrogen.
  • Improves water quality in the California Delta.
  • Saves the city of Stockton an estimated $67 million from financing with a WIFIA loan compared to typical market financing.
  • City of Stockton Public Finance Authority (Stockton, California) (pdf) (308.91 KB)

Water Infrastructure Finance and Innovation Act (WIFIA)

  • About WIFIA
    • Eligibility
    • Loan Process
    • Frequent Questions
  • WIFIA Solutions
    • Limiting Ratepayer Impacts
    • Once-in-a-Generation Project
    • Rising Costs
    • Multiple Funding Sources
    • Need Alternative Funding
    • Waiting for Grant Funding
    • Navigating Funding Process
    • Need to Move Quickly
    • Addressing Regional Issues
  • How to Apply
    • Available Funding
    • Public Borrowers
    • Private Borrowers
    • WIFIA SRF Borrowers
  • WIFIA Projects
    • Closed Loans
    • Pending Loans
    • WIFIA Annual Reports
  • Connect with the WIFIA Program
    • Future Webinars and Events
    • Monthly Office Hours
    • Schedule a Meeting
  • Program Resources
    • Program Handbook
    • Presentations and Factsheets
    • Laws and Regulations
    • Federal Requirements
Contact Us About the Water Infrastructure Finance and Innovation Act (WIFIA)
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on April 14, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.