Creeks, Watershed & Stormwater

The City of Larkspur is dedicated to ensuring the future health, safety, and general welfare of its citizens by:

  • Minimizing discharges other than storm runoff to storm drains or watercourses
  • Controlling the discharge to storm drains or watercourses from spills, dumping or
  • disposal of materials other than rain water; and
  • Reducing pollutants in storm water discharges to the maximum extent practicable.
We are protecting and enhancing the water quality of the state's and the nation's watercourses, water bodies, and wetlands in a manner pursuant to and consistent with the Clean Water Act.


The City of Larkspur would like to remind you that discharge of non-storm water flows to the City storm drain system is prohibited. All discharges other than storm water must be in compliance with a National Pollutant Discharge Elimination System (NPDES) permit issued for discharge.

In Larkspur, storm drains flow directly to local creeks, San Francisco Bay, and the Pacific Ocean, with no treatment. Stormwater pollution is a serious problem for wildlife dependent on our waterways and for people who live near polluted streams or wetlands. Please, visit the Marin County Stormwater Pollution Prevention Program website for more information on caring for our creeks, pest management, and Marin watersheds.

Your Project

Congratulations on your project! But remember, you can help.

For details on requirements, minimum control measures for all projects, and templates for ESCPs, visit the MCSTOPPP Construction website:


Dirt Can Hurt


Slow the Flow


Storm Water Video Series

What is Storm Water Runoff? Follow this series of Storm Water Films called, "Slow the Flow: Be a California Water Warrior."

Slow the Flow


Our Watershed

The Corte Madera Creek watershed is located in the eastern urbanized corridor of Marin County, California, and reaches from San Francisco Bay into the foothills of Mount Tamalais, in the Coastal Range. It is bounded on the west by a steep, forested ridge running northwest from the East Peak of Mt. Tamalpais (elevation 2,571 ft) to Pine Mountain and then north-northeast to White's Hill (elevation 1,430 ft).

Marin County Watershed Program


Friends of Corte Madera Creek