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EWG's Tap Water Database — 2021 UPDATE

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1,2,4-Trichlorobenzene

Clifton Park Water Authority

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

MORE ABOUT THIS CONTAMINANT

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND10ND
2015ND10ND
2016ND90ND
2017ND30ND
2018ND40ND
2019ND60ND

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-10-20C002981-POCSND
2015-02-23C005541-01-POCSND
2016-05-09160509024POCSND
2016-06-08160608087-POCSND
2016-06-08160608090-POCSND
2016-06-08160608084-POCSND
2016-06-08160608088001-POCND
2016-06-08160608094-POCSND
2016-06-08160608092-001-POND
2016-06-08160608095-001-POND
2016-06-08160608089-POCSND
2017-06-27170627043-POCSND
2017-06-27170627043-05-POCND
2017-10-05C030388-01-POCSND
2018-06-18C036388-POCSND
2018-06-18C036388-02-POCSND
2018-06-18C036389-01-POCSND
2018-09-04C038878-01-POCSND
2019-06-11C045464-01-POCSND
2019-06-11C045464-03-POCSND
2019-06-11C045464-06-POCSND
2019-06-11C045464-07-POCSND
2019-06-11C045464-04-POCSND
2019-06-11C045464-02-POCSND