Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Richardson County Rural Water District 2

NOTE: Richardson County Rural Water District 2 purchases water from Falls City, City of which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Falls City, City of.

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND40ND
2020ND80ND
2021ND80ND
2022ND80ND
2023ND80ND

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

NOTE: Richardson County Rural Water District 2 purchases water from Falls City, City of which is required to test for 1,2,4-trichlorobenzene. Sample information shown below was taken by Falls City, City of.

Date Lab ID Result
2018-08-14567278ND
2018-08-14567277ND
2019-08-12628467ND
2019-08-12628466ND
2020-05-12667088ND
2020-08-10689941ND
2020-08-10689940ND
2021-08-09753825ND
2021-08-09753824ND
2022-08-09816220ND
2022-08-09816219ND
2023-06-12856281ND
2023-08-01880284ND
2023-08-01880285ND