Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Horsham Water&sewer Authority

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

 

95

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND130ND
2020ND230ND
2021ND180ND
20220.0333 ppb181ND - 0.600 ppb
20230.0467 ppb151ND - 0.700 ppb

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
2018-01-30AF74813ND
2018-01-30AF74814ND
2018-02-13AF75932ND
2018-03-23AF79016ND
2018-06-22AF86999ND
2018-08-30AF94269ND
2018-10-03AF96985ND
2018-12-27AG04620ND
2019-02-11AG07773ND
2019-02-11AG07771ND
2019-02-11AG07775ND
2019-02-11AG07772ND
2019-02-27AG09179ND
2019-04-11AG13046ND
2019-04-11AG13047ND
2019-05-09AG16016ND
2019-05-09AG16019ND
2019-05-23AG16891ND
2019-08-21AG28299ND
2019-09-18AG31925ND
2019-09-18AG31924ND
2020-01-1621502653.00ND
2020-01-1621502632.00ND
2020-01-1621502611.00ND
2020-01-1621502590.00ND
2020-03-1221846176.00ND
2020-03-1221846155.00ND
2020-03-1221846134.00ND
2020-03-1221846113.00ND
2020-03-1221846092.00ND
2020-04-0822021654.00ND
2020-04-0822021612.00ND
2020-04-0822021591.00ND
2020-04-0822021633.00ND
2020-05-2022214496.00ND
2020-05-2022214475.00ND
2020-07-2222607030.00ND
2020-07-2222607009.00ND
2020-07-2222607051.00ND
2020-07-2222606988.00ND
2020-10-2123181837.00ND
2020-10-2123181816.00ND
2020-10-2123181774.00ND
2020-10-2123181795.00ND
2021-01-0623888194.00ND
2021-01-0623888173.00ND
2021-01-0623888131.00ND
2021-01-0623888152.00ND
2021-05-1324438516.00ND
2021-05-1324438495.00ND
2021-05-1324438474.00ND
2021-05-1324438453.00ND
2021-07-0824828059.00ND
2021-07-2124828164.00ND
2021-07-2124828227.00ND
2021-07-2124828206.00ND
2021-07-2124828185.00ND
2021-07-2925022377.00ND
2021-09-2925220222.00ND
2021-10-0725403882.00ND
2021-10-1325403917.00ND
2021-10-2725403927.00ND
2022-01-0526117082.00ND
2022-01-1226117040.00ND
2022-01-1226117061.00ND
2022-02-1026117139.00ND
2022-02-1726117103.00ND
2022-02-2426117116.00ND
2022-04-0626463496.00ND
2022-04-2026463538.00ND
2022-04-2026463559.00ND
2022-04-2026463517.00ND
2022-07-0727037092.00ND
2022-07-1327037071.00ND
2022-07-1327037050.00ND
2022-07-1427037029.00ND
2022-11-0227822983.000.600 ppb
2022-11-0927822920.00ND
2022-11-1027822941.00ND
2022-11-1027822962.00ND
2023-01-1828172694.00ND
2023-01-1928172673.00ND
2023-01-2628172715.00ND
2023-01-2628172736.00ND
2023-04-1228702125.00ND
2023-04-2628702167.00ND
2023-04-2628702188.000.700 ppb
2023-04-2628702104.00ND
2023-04-2628702146.00ND
2023-07-2729301880.00ND
2023-07-2729301859.00ND
2023-07-2729301901.00ND
2023-10-1929886659.00ND
2023-10-1929886638.00ND
2023-10-1929886617.00ND