Drinking Water Quality

The City of Anna obtains its drinking water from a combination of groundwater and surface water sources. The  groundwater is produced by seven deep water wells owned and operated by the City of Anna. The treated surface water is produced by North Texas Municipal Water District (NTMWD) and purchased from Greater Texoma Utility Authority (GTUA). Currently, approximately 65% of the City’s drinking water comes from surface water sources. As the City continues to develop, our surface water use will increase.

The City of Anna’s water system is heavily regulated and routinely tested by our staff and by the Texas Commission on Environmental Quality (TCEQ). Water samples are tested by an independent lab and results are reported to TCEQ and the City.

Below is a summary of the water quality monitoring conducted by licensed professionals.

City of Anna Daily/Monthly Testing

Disinfectant (chlorine, free ammonia, nitrate/nitrite) - Monitored daily at entry points and in the distribution system at TCEQ approved locations.

Bacteriological - Collected at three intervals per month at TCEQ approved locations and tested by a National Environmental Laboratory Accredited Program (NELAP) laboratory. 

Water Hardness (measured as calcium carbonate) - Measured daily at entry points and within the distribution system. Water hardness relates to the amount of calcium carbonate present and influences the feel of the water. For example, "soft" water (less calcium carbonate) requires less soap to create lather, while source water containing higher levels of calcium carbonate may require more soap to create lather.

Ph - Monitored weekly at entry points and at various locations within the distribution system.

City of Anna - Other Testing

Lead/Copper - Every 3 years.

Asbestos - Every 9 years (with waiver).

Texas Commission on Environmental Quality (TCEQ)

Annual Testing - TCEQ conducts independent annual testing at each of our entry points and sites throughout the water system. This testing varies year-to-year depending upon rule changes and EPA requirements. The monitoring frequency for contaminants is complex and varies by system and constituent. The results generated by TCEQ are used to prepare the annual water quality report which is published every year. In late Spring of each year, the City will publish the water quality report for the previous calendar year.

The water quality reports below are intended to provide you with important information about your drinking water and the efforts made by the City to provide safe drinking water.

2020 Drinking Water Quality Report (PDF)

2019 Drinking Water Quality Report (PDF)

2018 Drinking Water Quality Report (PDF)

2017 Drinking Water Quality Report (PDF)

2016 Drinking Water Quality Report (PDF)