Know Your Environment. Protect Your Health.

1,1,1,2-Tetrachloroethane

Navarro Mills Water Supply Corporation

NOTE: Navarro Mills Water Supply Corporation purchases water from City of Corsicana which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Corsicana.

1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 1 ppb

The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

NOTE: Navarro Mills Water Supply Corporation purchases water from City of Corsicana which is required to test for 1,1,1,2-tetrachloroethane. Sample information shown below was taken by City of Corsicana.

Date Lab ID Result
2018-07-17Q1828588001ND
2018-07-17Q1828588004ND
2019-07-29Q1948665001ND
2019-09-24Q1968203001ND
2020-09-16Q2037149001ND
2020-09-24Q2037862001ND
2021-07-14Q2118452001ND
2021-09-16Q2125446001ND
2022-08-23Q2224990001ND
2022-08-23Q2224990003ND
2023-07-31Q2330841001ND
2023-07-31Q2330841003ND