Only Rain Down the Drain!

Unlike the water that goes down household drains to the sewer system, water that flows into storm drains is not treated or filtered for pollutants. This contaminated water flows into canals, and then into streams and lakes. 

POLLUTANTS Everything other than pure rain water is a potential contaminant that degrades water quality.

ILLEGAL DUMPING into storm drains is dangerous to the environment. Report illegal dumping immediately by calling: (800) 506-2555.

VEHICLE WASHING at home causes pollutants to enter the storm drains. Instead, take your vehicle to a commercial car wash or divert wash water to landscaped areas.

PET WASTE is a major source of bacteria in our river!  Pick up after your pet and dispose of waste properly.  


HOUSEHOLD HAZARDOUS WASTE Recycle or properly dispose of household chemicals, such as insecticides, pesticides, paint, solvents, used motor oil and other auto fluids. NEVER POUR THEM ONTO THE GROUND OR INTO OUR STORM DRAINS. Read More...


  • Storm drain billboard
  • storm drain in street
  • Crews repairing a traffic light
  • Man washing car on a body of water-symbolic
  • City of Riverside Trash Truck
  • household hazardous waste containers

The Public Works Department plays a vital role in protecting waterways to promote quality of life for the City of Riverside.

Where do storm drains go?

The City’s storm drain system takes water runoff from the streets to local streams and rivers, then down to the ocean.

Many residential activities pollute water quality, ultimately harming the environment. These activities include over-watering lawns, applying commercial fertilizers and pesticides and discarding trash on the sidewalk and streets.

You are the solution to pollution!

Maintaining a healthy environment is everyone’s responsibility. Here are some suggestions to start preventing pollution today: riverside county storm water pollution prevention program

  • Use non-toxic household products whenever possible.
  • Dispose of household hazardous waste properly.
  • Never throw litter or debris into the street.
  • Use mulch to control runoff.
  • Pick up after your pet and dispose of waste in the trash.
  • Use natural fertilizers whenever possible.
  • Do not overuse fertilizers or over-water gardens and lawns.
  • Maintain your automobile to prevent fluid leaks.
  • Clean up fluid spills immediately. Apply absorbent, sweep up the spill and dispose of the contaminated material properly.
  • Make sure all water runoff from vehicle washing flows to landscape or gravel areas.

Remember...Only Rain Down the Drain!

311 Call Center logo Report Illegal Dumping!
You can report illegal dumping to the storm drain by contacting the City's 311 Call Center or the Riverside County storm water hotline at (800) 506-2555.

Quick Links
Other Wastewater Resources
General Information
Riverside Regional Water Quality Control Plant (RRWQCP)
5950 Acorn Street
Riverside, CA 92504

Phone: (951) 351-6140

Admin Hours:
Hours: M-F 7:30 am-4:30 pm  
Closed on Weekends and Major Holidays
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