Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Pennsylvania American Water Company Yardley

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

 

35

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND70ND
2021ND70ND
2022ND80ND
2023ND70ND

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
2018-04-1139062701ND
2018-08-1440630801ND
2018-08-1440630201ND
2019-04-0443649801ND
2019-08-2245815901ND
2019-08-2245816001ND
2020-01-0621487038.00ND
2020-04-0922005631.00ND
2020-04-0922005610.00ND
2020-07-0922591148.00ND
2020-08-0622780441.00ND
2020-08-0622780462.00ND
2020-10-1223166531.00ND
2021-01-0623695985.00ND
2021-04-0624230995.00ND
2021-04-0624230974.00ND
2021-07-0724812019.00ND
2021-08-0225004503.00ND
2021-08-0225004524.00ND
2021-10-0425387736.00ND
2022-01-0325926365.00ND
2022-03-0926272430.00ND
2022-04-0626447225.00ND
2022-04-0626447250.00ND
2022-07-1227020337.00ND
2022-08-0427216465.00ND
2022-08-0427216418.00ND
2022-10-1327625718.00ND
2023-01-0328156621.00ND
2023-04-1728684433.00ND
2023-04-1728684412.00ND
2023-07-1229285448.00ND
2023-08-0929478516.00ND
2023-08-0929478495.00ND
2023-10-1129870743.00ND