Clean Water Program

creek view

What is Stormwater Runoff?

Stormwater runoff is generated when precipitation from rain events flows over land or impervious surfaces and does not percolate into the ground.

Why Should You Care?

Runoff from our rooftops, parking lots, streets, and parks all discharges into the City’s storm drains. These storm drains are connected to our local waterways. That means pollutants such as litter, fertilizers, sediment, animal waste, and oil and grease can be picked up by runoff and washed into our creeks, and eventually the San Francisco Bay. That’s not only harmful to those critters that depend on our waterways, it also has the potential to impact public health and diminish local recreational opportunities.

What Is the City Doing?

The State of California has issued a Municipal Regional Stormwater Permit to municipalities and flood control districts in the Bay Area to regulate stormwater discharges. The City implements best management practices (BMPs) to control and reduce pollutant discharges into our storm drains during municipal operations such as road repairs and sidewalk maintenance. In addition, the City does the following:

  • Inspect, on a regular basis, industrial and commercial sites likely to contribute to pollution of stormwater runoff;
  • Regulate new developments and redevelopments for effective and continuing implementation of post-construction stormwater controls;
  • Require the implementation of sediment and other pollutant controls for construction projects;
  • Respond to illicit discharges; and
  • Minimize trash loading to our waterways through active street sweeping, storm drain maintenance, and the deployment of trash capture devices.


  • Wash your car at a commercial car wash.
  • Keep your outdoor trash/waste containers closed.
  • Clean up spills immediately with dry methods. Never hose spills down the storm drain!
  • Check for and comply with the City’s stormwater requirements if you have a project that will create or replace 2,500 ft2 or more of impervious surface.
  • Regularly maintain stormwater treatment measures on your property. (If you have a maintenance agreement with the City, download the annual report form and inspection checklists here.)
  • Pick up your pet’s waste.
  • Report illicit discharges to the City at (925) 931-5500 or
  • Volunteer at local creek cleanup events!



  • Discharge anything but rainwater down the storm drain.
  • Dump paint or wash paint brushes down a storm drain.
  • Wash kitchen mats outside.
  • Scrub down trash containers with detergents and wash them into alley or street gutter.
  • Litter.

Pleasanton is part of the Alameda Countywide Clean Water Program. To help assist businesses and residents in Alameda County, ACCWP has a wide variety of resources available to the public.

Contact Scott Walker at if you have any questions regarding the Clean Water Program.