I operate a small detailing shop. Can I discharge vehicle wash water on top of the ground?
A detailing shop or car dealership can establish an area dedicated to exterior vehicle washing provided the following conditions are met: • The pipe must be accessible for inspection and must not discharge directly to a ditch, stream, wetland, pond or other surface water body; • Cleaning is restricted to the exterior of the vehicle. Engine, undercarriage and transmission washing is prohibited. Cleaning operations should minimize the detachment of paint residues, heavy metals or other potentially hazardous materials from surfaces; • The use of acids, bases, metal brighteners, degreasing agents or steam is prohibited. The Department recommends non-toxic, phosphate-free cleaners with cold water; • Vehicles and equipment must not be washed near uncovered repair or chemical storage areas such that chemicals can be transported in wash water runoff. Engine and transmission maintenance is prohibited in the wash bay. All wash water runoff should be drained away from a shop repair or chemical st
