Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Rapides Parish Waterworks District 3

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

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND140ND
2021ND120ND
2022ND10ND
2023ND50ND

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
2018-03-2235381823001ND
2018-03-2235381823001ND
2019-04-1735463257001ND
2019-04-1735463257001ND
2020-01-2135525783003ND
2020-01-2135525783002ND
2020-01-2135525783001ND
2020-03-1135540206001ND
2020-03-1135537099001ND
2020-04-0735542640001ND
2020-04-0735542640002ND
2020-04-2235545475001ND
2020-06-2635559394001ND
2020-06-2635559394002ND
2020-08-2135572727002ND
2020-08-2135572727001ND
2020-11-1735593329002ND
2020-11-1735593329001ND
2021-03-1635619989001ND
2021-03-1635619989002ND
2021-05-0535631376001ND
2021-05-0535631390001ND
2021-05-0535631390002ND
2021-06-0235638318001ND
2021-06-2335643405001ND
2021-07-0135644790001ND
2021-09-0935662178001ND
2021-09-0935662178002ND
2021-10-0535668367001ND
2021-10-0535668367002ND
2022-04-1835712509001ND
2023-01-1835773982001ND
2023-01-1835773982002ND
2023-01-1835773982003ND
2023-04-0335790618001ND
2023-10-2635837466001ND