San Marcos Mercury | Local News from San Marcos and Hays County, Texas

June 4th, 2010
City well back in service


A repeat analysis of raw water from a City of San Marcos water well tested clear of E. coli bacteria Thursday.

The additional sample drawn Wednesday from the Soyars well was tested by the Edwards Aquifer Research and Data Center Laboratory at Texas State, which found no E. coli in the raw water.

The well will return to service Friday. The well was shut down on May 27 after E. coli bacteria was found in a raw water sample. City water utility workers disinfected and flushed the well on on May 28 and again on Tuesday to provide fresh water and to restore water quality.

No bacteria were found in the city’s water distribution system, which supplies potable water to the community. The city’s water utility disinfects all water before it is sent out into the distribution system.

The original samples were taken from raw untreated water from the Soyers well on Hunter Road, which supplies 1.7 percent of the total system supply. Most of the city’s treated water comes from surface water.

“Escherichia coli” is bacteria commonly found in the intestines of warm blooded animals. Some E. Coli strains can cause serious gastrointestinal illnesses in humans if consumed.

The city’s chlorine treatment effectively disinfects and eliminates all potential bacterial contaminants.

San Marcos Director of Public Services Tom Taggart said city officials said they have worked closely with the Texas Commission on Environmental Quality (TCEQ) to insure all regulatory requirements are followed and public health is protected at all times.

Residents may call the city’s public services department at (512) 393-8010 for more information.

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