City of Boerne Utilities has owned and operated Boerne’s public water supply since 1928. We have a superior rating from the Texas Commission on Environmental Quality (TCEQ) and, as required annually, we produce a Drinking Water Quality Report which is available on the city’s website here.
Boerne Utilities follows all TCEQ regulations and best practices to keep our drinking water safe. Our public water system is tested daily for any abnormalities. Chlorine is the key ingredient to killing any biological impurities. We add free chlorine during treatment to 1.0 ppm (mG/L). Treatment to that level ensures proper disinfection at the sources and ensures that we maintain mandated minimum levels (above 0.2 mg/L) within the entire system while accounting for natural dissipation. In areas of the system where chlorine has naturally dissipated below that level, we routinely flush the system.
Boerne has 3 sources of drinking water – Boerne City Lake, groundwater wells, and Canyon Lake (through a contract with the Guadalupe Blanco River Authority). The city also produces treated, non-potable water from the two wastewater plants for limited landscape and construction irrigation.