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Instructions to our staff on responding to private well inquiries. Information about water system connections and other information well drillers and engineers might find useful. Many staff guidance documents are undergoing review and possible revision to meet current rules and regulations and agency standards, to include standard operating procedures. For questions or comments, please contact the Public Drinking Water Section by phone at (512) 239-4691 or by e-mail at with the subject line : "Staff Guidance Review."

Protection of Aerators and Cooling Towers
This staff guidance document provides public water systems with information for protection of aerators and cooling towers.

Water Hauler Guidance
Learn about disinfection requirements, testing needs, and other requirements that apply to the hauling of drinking water.