LA Stormwater

LA Stormwater LA Stormwater is committed to keeping LA’s local watersheds clean and safe for all Angelenos. This page is monitored by the LA Stormwater staff. Thanks!

The City of Los Angeles is committed to improving the water quality of our surrounding rivers, creeks and coastal waters by reducing the amount of contaminated runoff that flows into them from our urban watershed. The LA Stormwater Program is using public outreach and education to protect our ocean. With the help of all Angelenos, we can make significant strides towards a cleaner LA and a healthier ocean. We encourage you to share your thoughts, photos and questions, but please keep it respectful and on-topic.

It's a bird, it's a plane, it's Super-... El Nino? You've probably already heard, but LA is likely in for a very wet win...
09/25/2026

It's a bird, it's a plane, it's Super-... El Nino? You've probably already heard, but LA is likely in for a very wet winter due what experts are nicknaming Super El Nino - a particularly dramatic version of a global weather phenomena that pushes storms in our direction. To get you fully up to speed, we've added a useful article to the link in our bio. Give it a read!

Yet another eco-friendly holiday coming your way. (September sure does have a lot of these!) Today is World Car-Free Day...
09/22/2026

Yet another eco-friendly holiday coming your way. (September sure does have a lot of these!) Today is World Car-Free Day, a part of the global movement to reduce car use and its impacts on our environment.

Today, tommorrow, or whenever you can - try catching the train, grabing a bus, or biking to your destination. You might just form a new healthy habbit.

💧🔬 Friday, September 18th is World Water Monitoring Day, a global reminder of just how much work goes into keeping our w...
09/18/2026

💧🔬 Friday, September 18th is World Water Monitoring Day, a global reminder of just how much work goes into keeping our water clean and safe.

Here in LA, that work doesn't stop when the rain starts. When storms roll through, LASAN's Watershed Protection Program sends teams out to collect stormwater samples from our creeks, rivers, and ocean, tracking pollutants and helping assess the health of our watersheds year-round.

Learn more about LA Sanitation's work monitoring the water quality of our coasts, waterways, sewers, and more. https://sanitation.lacity.gov/environmental-monitoring

⏰🌊 Just 4 days left until Coastal Cleanup Day! Join Heal the Bay this Saturday, September 19th, for LA County's biggest ...
09/15/2026

⏰🌊 Just 4 days left until Coastal Cleanup Day! Join Heal the Bay this Saturday, September 19th, for LA County's biggest volunteer event of the year, with 30+ sites across beaches, rivers, parks, and neighborhoods still open for sign ups. Grab your gloves and find a cleanup near you at the link below.

https://healthebay.org/coastalcleanupday/

As extreme weather events become more common and new temperature records are set year after year, many young people feel...
09/15/2026

As extreme weather events become more common and new temperature records are set year after year, many young people feel understandably anxious about the world they stand to inherit. That's why the California EPA has established a Youth Advisory Council which gives the youth of today a seat at voice to help set the direction of tomorrow.

Read more about the CalEPA Youth Advisory Council and how you or a passionate young Californian in your life can apply to join: https://lastormwaterblog.org/blog/2026/09/young-californians-apply-for-calepas-california-youth-advisory-council-by-september-21st/

Attention! Free admission to National Parks next Thursday! September 17th is Consistution Day, which the National Parks ...
09/10/2026

Attention! Free admission to National Parks next Thursday! September 17th is Consistution Day, which the National Parks Service has a long tradition of celebrating, but granting free park access to residents like you.

It's the perfect excuse to get outside, explore some of LA's natural spaces, and see firsthand why protecting our parks and waterways matters.

Find out which days NPS has scheduled for free admission here: https://nps.gov/planyourvisit/passes.htm

🌬️ Monday, September 7th is International Day of Clean Air for Blue Skies, a UN-designated day raising awareness about a...
09/07/2026

🌬️ Monday, September 7th is International Day of Clean Air for Blue Skies, a UN-designated day raising awareness about air pollution and its impact on our health and planet.

Air pollution affects everyone, but especially children, older adults, and communities already facing environmental burdens. Today's a great day to learn more about air quality in your neighborhood and the everyday actions that help keep our air a little cleaner.

https://www.unep.org/explore-topics/air/what-we-do/clean-air-day

🌊🧹 Mark your calendars - Coastal Cleanup Day 2026 is coming to LA County on Saturday, September 19th, and registration i...
09/03/2026

🌊🧹 Mark your calendars - Coastal Cleanup Day 2026 is coming to LA County on Saturday, September 19th, and registration is officially live! Join Heal the Bay for their 37th year coordinating this effort, with 30+ cleanup sites spanning beaches, rivers, parks, and neighborhoods across the county.

Cleaning up now is how we get Rain Ready for later. Every piece of trash and debris removed today is one less thing washing into our storm drains when rain season returns, helping prevent stormwater pollution before it starts.

Register today and find a site near you at the link below.
https://healthebay.org/coastalcleanupday/

Labor Day weekend is on its way - and that means one last big send-off for summer! Whether you're headed to the beach, ...
09/01/2026

Labor Day weekend is on its way - and that means one last big send-off for summer! Whether you're headed to the beach, a backyard barbecue, or a local park, we hope you soak up every minute. ⛱🎉

Before you pack up and head home, take a quick look around your spot. A stray napkin, bottle, or plastic bag left behind can make its way to a storm drain and out to our rivers, creeks, and ocean faster than you'd think.

Happy National Beach Day! Summer break's almost over - but we know that LA's beaches are still calling! 🏖️After a fun da...
08/30/2026

Happy National Beach Day! Summer break's almost over - but we know that LA's beaches are still calling! 🏖️

After a fun day at the beach, before you pack up your towel and head home, take a quick look around your spot. A stray bottle, a forgotten wrapper, or a plastic bag left on the sand can make its way to the ocean faster than you'd think - especially as we head into dry season, when every piece of litter on our coastline has nowhere to go but the water.

Leave your patch of beach cleaner than you found it, and enjoy every moment of summer on the shore!

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