Storm Water Division


The Storm Water Division maintains and repairs the City’s storm drainage system including storm drains and catch basins.

Storm Drain Pollution

Even though you may live miles from the San Joaquin Delta or the San Francisco Bay, you may be polluting those waters without knowing it. When you pour the following chemicals in to the gutter, it flows in to the groundwater and eventually in to the Delta and the Bay:
  • Antifreeze
  • Fertilizer
  • Household chemicals
  • Motor oil
  • Paint
  • Pesticides
  • Trash
Dumping just 1 quart of motor oil in to a storm drain can pollute 250,000 gallons of water and kill or sicken thousands of fish, birds, and other animals.

More Pollutants

Other items thrown in to the storm drains like disposable cups, plastic water bottles, ice cream wrappers and sticks, also cause potential problems by clogging storm drain lines which in turn back up in to the streets causing flooding. 

Never use a storm drain as a garbage can. It is designed for rain water run-off and flows from your neighborhood to the Stanislaus River on the north side of Riverbank.
Never pour motor oil on the ground, on the driveway, or into the gutters and storm drains. 
  • Leftover soapy car wash water should be poured in the toilet or sink or wash your car over your lawn as the soapy water won’t harm the grass. 
  • Rinse paintbrushes in the sink, this water travels through the sewer pipes to the Wastewater Treatment Plant, where the water runs through a series of treatments and aeration ponds before being returned to the River.  
  • Sweep your driveway and walkways instead of hosing them down with water.
Helping to keep our rivers and streams healthy, helps keep the Delta and Bay healthy, too!