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EWG's Tap Water Database — 2019 UPDATE

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1,2,4-Trichlorobenzene

Philadelphia Water Department

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

 

78

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND120ND
2013ND120ND
2014ND150ND
2015ND120ND
2016ND120ND
2017ND150ND

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
2012-02-08DW120208-001ND
2012-02-08DW120208-003ND
2012-02-08DW120208-000ND
2012-05-09DW120509-003ND
2012-05-09DW120509-000ND
2012-05-09DW120509-001ND
2012-08-15DW120815-003ND
2012-08-15DW120815-001ND
2012-08-15DW120815-000ND
2012-11-14DW121114-001ND
2012-11-14DW121114-003ND
2012-11-14DW121114-000ND
2013-02-13DW130213-000ND
2013-02-13DW130213-003ND
2013-02-13DW130213-001ND
2013-05-08DW130508-001ND
2013-05-08DW130508-003ND
2013-05-08DW130508-000ND
2013-08-14DW130814-003ND
2013-08-14DW130814-001ND
2013-08-14DW130814-000ND
2013-12-117311719ND
2013-12-117311718ND
2013-12-117311717ND
2014-02-12DW140212-000ND
2014-02-12DW140212-001ND
2014-02-12DW140212-003ND
2014-05-147468948ND
2014-05-147463348ND
2014-05-147463349ND
2014-05-147468949ND
2014-05-147463350ND
2014-05-147468950ND
2014-08-137570046ND
2014-08-137570048ND
2014-08-137570047ND
2014-11-19DW141119-019ND
2014-11-19DW141119-038ND
2014-11-19DW141119-002ND
2015-02-1112406488ND
2015-02-1112406528ND
2015-02-1112406508ND
2015-05-1312754260ND
2015-05-1312754280ND
2015-05-1312754300ND
2015-08-1213140267ND
2015-08-1213140287ND
2015-08-1213140307ND
2015-11-1813518588ND
2015-11-1813518608ND
2015-11-1813518628ND
2016-02-1013874722ND
2016-02-1013874702ND
2016-02-1013874682ND
2016-05-1114257223ND
2016-05-1114257183ND
2016-05-1114257203ND
2016-08-1014741964ND
2016-08-1014742004ND
2016-08-1014741984ND
2016-11-0915231700ND
2016-11-0915231740ND
2016-11-0915231720ND
2017-02-0815661977ND
2017-02-0815662017ND
2017-02-0815661997ND
2017-05-1016100820ND
2017-05-1016101780ND
2017-05-1016101800ND
2017-05-1016100840ND
2017-05-1016101760ND
2017-05-1016100800ND
2017-08-0916572473ND
2017-08-0916572513ND
2017-08-0916572493ND
2017-11-0817029207ND
2017-11-0817029187ND
2017-11-0817029167ND