Stormwater management is extremely important in Southwest Washington. Each year Clark County receives an average of nearly 40 inches of precipitation. Over 70% of this rain is delivered between the months of November and March.
Our stormwater systems help to mitigate the flooding and contamination issues often associated with large volumes of rain hitting impervious surfaces like roads, buildings, and parking lots. As a Clark County business, you share a responsibility with the residents to keep the stormwater systems in check. Though maintenance is usual minimal, it is a critical part of keeping our roadways clear and drinking water safe.
To meet the minimum requirements of the stormwater assessment, you will be asked to comply with current state and federal laws in keeping contaminants out of our stormwater systems. For more help greening your stormwater system, please see our resources listed below.
Download the stormwater assessment
Short videos: stormwater and business responsibilities
Cover - an ounce of prevention is worth a pound of cure
Be prepared to contain and clean up spills
Wash water is wastewater. Spills of any kind should never be washed into a storm drain.
Maintaining your stormwater facility
- Stormwater Partners of SW Washington
- Washington Stormwater Center
- Clark County Stormwater Management Plan (PDF)
- Clark County Clean Water Program Report 2010 (PDF)
Cary Armstrong, Sustainability Specialist
Clark County Environmental Services
(360) 397-2121 ext. 4392
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