The Drinking Water State Revolving Fund (DWSRF) makes funds available to drinking water systems to pay for infrastructure improvements. This program is funded through federal and state money and subject to state laws and additional federal regulations.

The program provides:

Low-interest construction loans to publicly (municipal) and privately owned drinking water systems. These loans cover capital improvements that increase public health and compliance with drinking water regulations.
Construction loan repayments can range from 20 to 30 years. In some cases, partial loan forgiveness is offered.
Planning and engineering loans to cover preconstruction work and activities such as water system plans, engineering designs, and cultural reviews.
Consolidation Feasibility Study grants allow larger Group A community water systems such as cities, town, counties, public utility districts, and water districts to determine feasibility and capital improvements needed to consolidate smaller or struggling water systems into their service area.