Our proposed green infrastructure approach will be more cost-effective than gray for meeting Peoria's CSO obligation. Nonetheless, making these improvements likely will be in the hundreds of millions of dollars. City leaders and our citizens will be tasked with identifying funding streams for this mandate. There will be costs associated with:
- Installing green infrastructure (capital). Our current estimate for installing green infrastructure to control CSOs is around $200 million.
- Ensuring that it continues performing (maintenance, such as street sweeping, keeping plantings healthy, etc.). Maintenance of green infrastructure is estimated between 1 to 3% of capital cost.
Peoria is conducting a global financial analysis to determine what our City and our citizens could reasonably afford to fund. An exact dollar amount is not available at this time because:
- The Peoria City Council, informed by public input, will have policy decisions to make regarding our municipality's approach.
- The location, size, and amount of projects are not yet decided; these also will be informed by public input.
- Our use of green infrastructure will employ adaptive management, so green implementation is consistently monitored and optimized as we go.
- Negotiations continue in earnest with the U.S. EPA, including on an implementation timeline.