Clean Water State Revolving Fund

The Clean Water State Revolving Fund (CWSRF) is a self-perpetuating loan assistance authority for water quality improvement projects in the United States. The fund is administered by the Environmental Protection Agency and state agencies. The CWSRF, which replaced the Clean Water Act Construction Grants program, provides loans for the construction of municipal wastewater facilities and implementation of nonpoint source pollution control and estuary protection projects.Congress established the fund in the Water Quality Act of 1987. Since inception, cumulative assistance has surpassed US$65 Billion, and is continuing to grow through interest earnings, principal repayments, and leveraging.

All 50 states, plus Puerto Rico operate a CWSRF. The 51 CWSRF programs function like environmental infrastructure banks by distributing low interest rate loans for water quality projects. Loan repayments are recycled back into individual CWSRF programs. States can only use the funds to make loans, purchase local debt, or issue financial guarantees. They cannot make grants or otherwise dissipate the capital in their funds. Principal repayments plus interest earnings become available to finance new projects, allowing the funds to "revolve" over time. States can also increase their CWSRF financing capacity by issuing CWSRF-backed revenue or general obligation bonds. To date, 27 states have leveraged their programs in this way, raising an additional $20.6 billion for important water quality projects.

The 51 funds are capitalized in part by federal and state contributions. For every dollar contributed by the federal government, states contribute 20 cents. Since the first federal capitalization grants in 1988, the total federal appropriation to the 51 CWSRF programs has reached over $25 billion, with corresponding state contributions of $5.3 billion. Financial leveraging techniques conducted by state funds have snowballed federal and state contributions into $65 billion as of 2007.

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