Water Quality

The City of San Marcos' Water Quality Department monitors drinking water and wastewater in the City of San Marcos' distribution and collection lines in accordance with local, state, and federal rules. This department is dedicated to ensuring that the citizens of San Marcos and visitors to the area have access to safe drinking water and clean water for recreation. 

The Water Quality department can also be contacted at (512) 393-8010, or IndustrialPretreatment@sanmarcostx.gov