Every time it rains, water washes everything off of paved surfaces and down into the storm drain, including harmful pollutants. The stormwater system flows directly to our waterways. Unlike the sewer system, stormwater is not treated before it reaches the waters where we surf, swim and fish.
What is stormwater?
What is IN stormwater?
NUTRIENTS
Phosphates + nitrates from fertilizers and detergents
High nutrient levels in water can increase plant and algae growth, harming underwater ecosystems.
TRASH
Bottles, cans, plastics, cigarettes, etc.
Anything on the pavement goes down the drain.
HEAVY METALS
Copper, lead, mercury, zinc, iron, etc.
Vehicles deposit metals into the environment through exhaust, brake linings and tire and engine wear.
PETROLEUM PRODUCTS
Gas, motor oil, grease Leaking vehicles and machinery drop petroleum products on roadways.
Car washing deposits oils and grease into the storm drain system.
