Water Quality Report

Clarksville Water Treatment Plant employees work diligently 24 hours a day, 7 days a week, 365 days a year to ensure that Clarksville’s drinking water is the safest and best quality possible. Through the dedication and vigilance of our workforce, we’re proud to announce that your drinking water not only meets, but exceeds federal and state drinking water standards set forth by the Environmental Protection Agency (EPA). Numerous mandated tests are performed daily on Clarksville’s water and these findings can be viewed within the yearly, Annual Drinking Water Quality Report.

In addition, listed are the average characteristics that help determine the water quality you receive. Additional information can be found within the Annual Drinking Water Quality Report


2021 Annual Drinking Water Quality Report


Values shown in the water quality characteristics table below are averages of operating data for 2021 (Values may vary from day to day).

2021 Water Quality Characteristics

Substance Unit Measurement Yearly Average Range
Alkalinity PPM 72 54 to 101
Hardness PPM 91 72 to 118
Hardness Grains 5.3 4.2 to 6.9
Iron PPM 0.011 0.00 to 0.05
Manganese PPM 0.013 0.001 to 0.043
pH H+ 7.3 7.0 to 7.8
PPM (parts per million)      
Calcium is measured in
Total Calcium Hardness-CaCo3 ppm
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Consumer Confidence Report

Clarksville Gas and Water is dedicated to providing only the highest quality of service for our community. In accordance with the EPA standards, we make our annual drinking water quality report, also referred to as the Consumer Confidence Report (CCR), publicly available.

Environmental Protection Agency (EPA)Additional Information

Important water quality information may also be viewed on the Environmental Protection Agency website or by calling the Safe Drinking Water Hotline at 800-426-4791.