- Failed some Health Guidelines
- Failed some Legal Limits
- Met all Reporting and Monitoring Requirements
- Uses Chlorine disinfectant
San Antonio's water is regulated by the San Antonio Water System (SAWS). The SAWS retrieves it's water from the Edwards Aquifer, a 180-mile expanse between Kinney and Hays County. The aquifers system first naturally purifies falling rain by using the limestone in the ground. The water is then distributed from the underground cavern to thousands of communities and business.The Edwards Aquifer is the only natural purification system in the US that no other large city has.
San Antonio has taken the lead in implementing aggressive water conservation measures during the recent drought in Texas. Through a variety in restrictions, incentives, educational initiatives, and water recycling measures, the city uses roughly the same amount of water that it used in 1984, despite it's 67% increase in population. In recent years, radioactive elements, lead and potentially carcinogenic disinfectant byproducts have exceeded health guidelines.
San Antonio, TX Water Quality Recent Violations
There were no health violations for in the 2010-2012 reporting periods
There were no reporting, montioring or other reported violations for in the 2010-2012 reporting periods
San Antonio, TX Water Quality Historical Violations
|Contaminant||Total Tests||Positive Results||Above Health Limits||Above Legal Limits||EPA Regulated||Max Result||Health Limit||Legal Limit|
|Total trihalomethanes (TTHMs)||35||31||0||1||Yes||112.50||-||80|
|Alpha particle activity||11||4||4||0||Yes||3.40||-||15|
|Alpha particle activity (incl. radon & uranium)||2||2||0||0||Yes||4.50||-||15|
|Gross beta particle activity (pCi/L)||13||4||0||0||Yes||4.30||15||15|
|m- & p- Xylene||21||1||0||0||Yes||5.30||-||10000|
|Mercury (total inorganic)||11||1||0||0||Yes||0.23||2||2|
|Total haloacetic acids (HAAs)||1||1||0||0||Yes||11.60||70||60|
29 Contaminants were detected, 1 above legal limits, 3 above health guidelines, and 25 below limits for water suppliers serving San Antonio, TX between 2004 and 2009.
138 Water Contaminants were tested for in the San Antonio, TX area but not found in drinking water between 2004 and 2009.
Data Source: NYTimes.com
The scores and results above reflect a summary of the historical drinking water testing results that has been documented by the EPA and other sources. The color coding of the symbols was developed by WaterFilterComparisions.com as an easy way for individuals to gauge the historical effectiveness of San Antonio water suppliers in meeting legal and health regulations in providing clean drinking water. This should only be used as a guide, and WaterFilterComparisons recommends you contact San Antonio water suppliers to better understand the quality of the drinking water in San Antonio, .