You are here: Home Licensing Class D Questionnaire for Water Operators Class D Water Operators License Questionnaire PWS Number PWS Number Public Water System Number. http://www.tceq.texas.gov/licensing/ClassDQuestionnaireWater/waterq/pws-number http://www.tceq.texas.gov/@@site-logo/tceqlogo-3colors.gif PWS Number Public Water System Number. PWS Number Public Water System Number.
