All calls are treated anonymously, and every effort is made to educate the citizen on the impact of dumping contaminants down the storm drain, where it can end up in a ditch, creek or lake. The complaint hotline is staffed during business hours. An SPU surface water quality inspector will respond to complaints and investigate. Your calls can help reduce pollution in Seattle streams, lakes, and the sound. No, nothing but storm water is allowed in the storm drains.
Many poisons are biodegradable.
Biodegradable only means the soap will break down in time. It is still toxic to fish and other living organisms. Soapy water needs to be disposed of in the sewer system such as an inside sink or toilet. Yes, there is a city ordinance that prohibits cars from dropping oil, grease or similar substances on the city streets. The owners are notified and if the problem is not corrected in a reasonable amount of time the car can be towed.