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  This drinking water quality report shows results of tests conducted by water utilities in Tennessee, provided to the Environmental Working Group (EWG) by the State water agency. It is part of EWG's national database that includes 47,667 drinking water utilities and 20 million test results from 45 states and the District of Columbia. Water utilities nationwide detected more than 300 pollutants between 2004 and 2009. More than half of these chemicals are unregulated, legal in any amount. Despite this widespread contamination, the federal government invests few resources in protecting rivers, reservoirs, and groundwater from pollution in the first place. The information below summarizes drinking water quality for this state.

The state water agency did not respond to requests for water quality test data. Contact your water utility for the latest water quality report.
  Violation Summary for Tennessee

Data from the U.S. Environmental Protection Agency includes the following violations of federal standards in Tennessee since 2004.

Violation Type Number of Violations
Monitoring and Reporting Disinfection Byproduct Rule 488
Failure to monitor regularly 279
Over maximum contaminant level, Average 229
Failure to monitor, Routine Minor (Coliform bacteria) 224
Failure to monitor, Routine Major (Coliform bacteria) 209
Filter Turbidity Reporting 149
Treatment Technique (Surface Water Treatment Rule) 81
Failure to report information to the public or state agency in the Consumer Confidence Report 74
Maximum contaminant level, Monthly (Coliform bacteria) 55
Failure to monitor, Repeat Major (Coliform bacteria) 45
Record Keeping Violation 32
Excess Turbidity at 0.3 NTU 32
Monitoring & Reporting of Filter Profile/Comprehensive Performance Evaluations Failure 28
Excess Turbidity at 1 NTU 21
Inadequate reporting of information to the public 18
Failure to monitor, Repeat Minor (Coliform bacteria) 16
Follow-up and Routine Tap Sampling 11
Public Notification Violation for National Primary Drinking Water Regulations 7
Maximum contaminant level, Acute (Coliform bacteria) 7
Failure to monitor or report, Routine/Repeat (Indicators of microbial or virus contamination) 3
Failure to Filter (Surface Water Treatment Rule) 1
Optimal Corrosion Control Treatment Installation/Demonstration 1

Sources : EWG (Environmental Working Group)