Anthony, your point is moot. The amount of waste water from home carwashing makes runoff from mobile detailers insignificant but it doesn't make it right. It has to start somewhere. I understand the resistance to change here because first and foremost it isgoing to cost mobile guys money. Well, tough luck guys. Every business is required to operate within the confines of the law whether they like it or not. Using your logic, people could just change their motor oil at home and then dump it in their backyard and say "I know it's polluting but it's nothing compared to the pollution caused by so and so" or whatever they want to justify thier position. Also, I have seen the studies proving the effects of detergents and chemicals on our water supply and would like to see a link to the reports you claim "conflict" with them. I live within 45 minutes of 3 of the great lakes and can say without question that I am concerned by the amount of foaming at the waters edge every time I go to the beach.