Original story:

The City of San Marcos issued a citywide boil water notice in effect until Nov. 14 as a precaution after construction damage to a major city water main resulted in a system pressure drop.
Tom Taggart, public services director, says the boil notice is precautionary as the city has no evidence of water contamination. He says boil notices are a necessary step anytime there us a lack of pressure in main water lines for an extended period.
“After the main is repaired and water samples are processed, we would expect to receive satisfactory water quality results by 5 p.m. on Saturday which will allow us to rescind the precautionary boil water notice at that time,” Taggart said. 
A press release states that crews are working to isolate and repair damage to the main water line and restore system pressures to normal levels. Samples will be taken after the repair is completed, and the boil notice will remain in effect until satisfactory sampling results are received. 
The release states: “To ensure destruction of all harmful bacteria and other microbes, water for drinking, cooking and ice making can be boiled and cooled prior to consumption. The water should be brought to a vigorous rolling boil and then boiled for two minutes. In lieu of boiling, you may wish to purchase bottled water or obtain water from some other suitable source.”
For questions regarding the boil notice, contact the Water & Wastewater Utilities office at 512-393-8010 during normal business hours.