Storm Drainage Information

The storm drainage system consists of 30 pump stations, 56 miles of pipeline ranging in size from 6" through 60", 138 inverted siphons, 974 drainage inlets, and 181 acres of drainage basins and drainage ditches. The storm drainage system removes rainfall from surface streets and disposes the accumulated storm water in drainage basins.

For more information please call the utilities division at 585-2550 during normal business hours.

After hours emergency call 585-2540.

Slow the Flow: How to make your landscape act more like a sponge 

This is a link to a video to help homeowners understand the impacts of landscaping to storm water runoff.

Video - Keeping California Water Clean

Storm Water Management Plan

The City of Hanford has developed our Storm Water Management Program (SWMP) to comply with State and Federal regulations and improve the quality of life in our city. The SWMP contains activities to reduce the amount of pollution in the storm water that runs off into our basins and ditches. 

Storm water originates from rainfall – whatever doesn’t soak into the ground runs off into our basins and ditches. Storm water starts off relatively free of pollutants, but as it flows over the landscape it picks up substances from our roads, parking lots and lawns and carries these substances into the basins and ditches. Storm water is conveyed through a storm drain system, but unlike the sanitary sewer system, it does NOT go to a treatment plant - it discharges directly to our basins and ditches without any treatment. Many of the substances picked up by the storm water are harmful to the plants and animals that live in our streams and ponds, which is why it is important for us to reduce storm water pollution. 

The City's Storm Water Management Program consists of Best Management Practices (BMPs) in six general categories listed below: 

  • Public Education and Outreach
  • Public Participation and Involvement
  • Illicit Discharge Detection and Elimination
  • Construction Site Storm Water Runoff Control
  • Post Construction Storm Water Management in New Development and Redevelopment
  • Pollution Prevention / Good Housekeeping for Municipal Operations

Rain in the Drain Flyer
Storm Water Guidance Document