Know Your Environment. Protect Your Health.

Tetrachloroethylene (perchloroethylene)

Tryon Road Special Utility District

NOTE: Tryon Road Special Utility District purchases water from Northeast Texas Municipal Water District which is required to test for tetrachloroethylene (perchloroethylene). Sample information shown below was taken by Northeast Texas Municipal Water District.

Dry cleaning chemical tetrachloroethylene, or perc, can cause cancer. It pollutes soil and groundwater due to emissions from dry cleaning facilities, and automotive, metalworking and other industries. Read More.

The EPA considers tetrachloroethylene a likely human carcinogen. It has been linked with increased incidence of lung, breast and colon cancers. Tetrachloroethylene also damages the liver, kidneys and central nervous system. The California public health goal of 0.06 parts per billion, set to protect against cancer, is 80 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND30ND
2022ND30ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.06 ppb

The EWG Health Guideline of 0.06 ppb for tetrachloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL): 5 ppb

The legal limit for tetrachloroethylene, established in 1991, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer due to tetrachloroethylene exposure.

ppb = parts per billion

All test results

NOTE: Tryon Road Special Utility District purchases water from Northeast Texas Municipal Water District which is required to test for tetrachloroethylene (perchloroethylene). Sample information shown below was taken by Northeast Texas Municipal Water District.

Date Lab ID Result
2018-09-20Q1837729001ND
2019-08-14Q1954876001ND
2020-04-23Q2016185003ND
2020-08-18Q2032884003ND
2021-02-09Q2103854003ND
2022-03-01Q2206887005ND
2023-01-18Q2302651002ND