Think Blue San Diego

Clean Water, Clean Beaches

We are Think Blue San Diego

Clean Water, Clean Beaches

San Diego is defined by the natural beauty of its beaches and coastal waters, and keeping those precious resources clean, safe and healthy is the mission of Think Blue San Diego – the City’s Stormwater Department. That mission gets more difficult each year as the costs soar to upgrade and modernize the City’s massive storm drain system. Right now, there’s no identified funding source to pay for those costs, putting the health of our local environment at potential risk.

Why should you care? Because clean water and clean beaches are made possible by clean stormwater. The lack of proper investment in a stormwater system can result in neighborhood flooding, beach closures, property damage, sinkholes, human sickness, harm to wildlife, etc. Think Blue’s job is to implement innovative, proactive steps to stop pollution before it gets into storm drains and, by doing so, protect our fellow San Diegans and local wildlife.


Lady and Water Container

Did You Know?

The City's stormwater system is made up of


miles of pipe,


storm drains and outfalls,


pump stations and


miles of channels spread throughout the City.

The City’s fleet of

sweepers routinely cover


miles of streets, removing


tons of trash a year. That pollution the equivalent of preventing a Boeing 757 aircraft from entering storm drains.

Stormwater inspection and enforcement teams work hard to enforce water quality standards. Teams performed


construction site inspections annually and investigated and eliminated


dry weather flows.

Importance of Stormwater

Did you know rainfall that enters the storm drain system is NOT treated? It collects pollutants from our streets and carries them into local waterways. Think Blue works to prevent that pollution and stop water waste – and every San Diegan can do their part to help.

Learn More about the Importance of Stormwater

Bike Ride on the Bay

Water Monitoring

Stormwater Management and Infrastructure

Think Blue San Diego works to improve and maintain water quality, keep communities safe from flooding and provide community benefits through habitat restoration, clean streets and stormwater harvesting.

Learn More about Stormwater Management

Water Monitoring

Funding Strategy

In response to an audit, the City of San Diego is developing a funding strategy to pay for the stormwater system’s current and future needs. The audit found current funding levels insufficient for the City’s growing stormwater responsibilities and demanded action.

Learn More about the Importance of Stormwater

Funding Strategy


Green Sea Turtle Underwater

Think Blue Calendar

Thursday, January 27, 2022 - 3:00pm to 5:00pm


Jan 27

Tuesday, February 8, 2022 - 4:00pm to 5:00pm


Feb 08

Friday, February 11, 2022 - 7:00pm


Feb 11

View Calendar


La Jolla Cove

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