Stormwater Information

Stormwater Rates
For single family residential customers the stormwater fee is based on a fixed number of Equivalent Residential Units (ERU) for that class. All commercial customers are charged based on the actual amount of impervious area.

A single ERU is equal to 2,635 square feet of impervious area.

Single Family Customer Class

Impervious Area of a Home

ERU Charged



< 1,884 sq ft

0.6 ERU



1,884 to 3,743 sq ft




>3,743 sq ft

1.7 ERU


What will my stormwater fee pay for?
The stormwater utility fee will pay for the operations and maintenance? costs of the stormwater program. Some of the services include?d in the stormwater program include:
  • Flood protection through capital improvement projects
  • Improved water quality
  • Storm drain cleaning and repair
  • Street sweeping
  • Shoulder and ditch maintenance within the right of way
  • Constructing new storm sewer projects;
  • Maintaining public detention basins;
  • Mowing ditches;
  • Public education and outreach
  • Inspecting and enforcing construction site erosion control standards
  • Cleaning dirt and debris from pipes inlets and catch basins
  • Project design and management
  • Compliance with Federal and State NPDES Stormwater Permit Federal Regulations
Find other frequently asked questions about the water department on this website.

Healthy Habits for Clean Water
As stormwater flows over driveways, lawns and sidewalks, it picks up debris, chemicals, dirt, and other pollutants. Stormwater can flow into a storm sewer system or directly into a lake, stream, river, wetland, or coastal water. Anything that enters a storm sewer system is discharged untreated into the water bodies we use for swimming, fishing and providing drinking water. Polluted runoff is the nation's greatest threat to clean water.

By practicing healthy household habits, homeowners can keep common pollutants like pesticides, pet waste, grass clippings, and automotive fluids off the ground and out of stormwater. Adopt healthy household habits and protect lakes, streams, rivers, wetlands, and coastal waters. For more information, view our Healthy Habits for Clean Water.