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EWG's Tap Water Database — 2019 UPDATE

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Monochlorobenzene (chlorobenzene)

Philadelphia Water Department

Monochlorobenzene is used as a solvent for pesticides, a degreasing agent and an intermediate for manufacturing other chemicals. It causes liver and kidney damage in studies of laboratory animals.

 

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 70 ppb

The EWG Health Guideline of 70 ppb for monochlorobenzene 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for monochlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1960s.

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
2015-02-1112406503ND
2015-02-1112406543ND
2015-02-1112406523ND
2015-05-1312754275ND
2015-05-1312754295ND
2015-05-1312754315ND
2015-08-1213140282ND
2015-08-1213140302ND
2015-08-1213140322ND
2015-11-1813518603ND
2015-11-1813518623ND
2015-11-1813518643ND
2016-02-1013874737ND
2016-02-1013874717ND
2016-02-1013874697ND
2016-05-1114257238ND
2016-05-1114257198ND
2016-05-1114257218ND
2016-08-1014741979ND
2016-08-1014742019ND
2016-08-1014741999ND
2016-11-0915231715ND
2016-11-0915231755ND
2016-11-0915231735ND
2017-02-0815661992ND
2017-02-0815662032ND
2017-02-0815662012ND
2017-05-1016100835ND
2017-05-1016101795ND
2017-05-1016101815ND
2017-05-1016100855ND
2017-05-1016101775ND
2017-05-1016100815ND
2017-08-0916572488ND
2017-08-0916572528ND
2017-08-0916572508ND
2017-11-0817029222ND
2017-11-0817029202ND
2017-11-0817029182ND