Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Ephrata Area Joint Authority

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

48

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND50ND
2020ND90ND
2021ND90ND
2022ND100ND
2023ND100ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-047020609-01ND
2018-01-058000628-01ND
2018-04-098007939-01ND
2018-07-158020415-01ND
2018-10-018028440-01ND
2019-01-028018023-01ND
2019-01-089000133-01ND
2019-04-027004831-01ND
2019-07-027011943-01ND
2019-10-079035881-01ND
2020-01-0321627528.00ND
2020-04-0622168747.00ND
2020-04-1322168799.00ND
2020-04-1322168798.00ND
2020-07-1322753750.00ND
2020-07-1722753827.00ND
2020-07-2122753828.00ND
2020-10-0723319883.00ND
2020-10-1423319959.00ND
2021-02-1224015877.00ND
2021-02-2624015901.00ND
2021-04-0824201056.00ND
2021-04-1424390923.00ND
2021-07-0124976234.00ND
2021-07-0124976235.00ND
2021-07-1624976346.00ND
2021-10-0525545655.00ND
2021-10-0825545727.00ND
2022-01-0526077511.00ND
2022-01-3126077711.00ND
2022-02-0826247112.00ND
2022-04-0426604667.00ND
2022-04-0526604699.00ND
2022-07-1127188736.00ND
2022-07-1227188821.00ND
2022-07-2227188980.00ND
2022-10-1027782892.00ND
2022-10-2527782940.00ND
2023-01-0928307552.00ND
2023-01-2428307784.00ND
2023-01-2428307806.00ND
2023-04-1428855568.00ND
2023-04-1428855567.00ND
2023-07-1129451543.00ND
2023-07-1829451602.00ND
2023-08-2929654926.00ND
2023-10-3130028758.00ND
2023-10-3130028757.00ND