We found the environmental regulations for Texas car wash operations. From the first page of that PDF (click here):
What environmental requirements apply to car washes?
Several environmental rules apply to car washes—rules that affect how businesses manage wastes and help protect air and water. In this guide, the environmental issues for car washes are separated into four categories:
•wash water
•grit–trap waste
•fuel tanks
•air emissions
The idea for this post came from a company which makes dog seat covers (4Knines) when discussing car wash locations and cleaning out car interiors from pet hair.