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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Aqua Pennsylvania Main System

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.

MORE ABOUT THIS CONTAMINANT

 

182

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
2014ND330ND
2015ND370ND
2016ND350ND
2017ND310ND
2018ND210ND
2019ND250ND

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
2014-01-06AE19666ND
2014-01-08AE19654ND
2014-01-08AE19653ND
2014-01-09AE19808ND
2014-01-09AE19814ND
2014-02-05AE22406ND
2014-02-06AE22395ND
2014-02-06AE22429ND
2014-02-19AE24127ND
2014-02-19AE24128ND
2014-02-19AE24152ND
2014-02-26AE23735ND
2014-04-14AE29526ND
2014-04-15AE29528ND
2014-04-15AE29507ND
2014-04-23AE29939ND
2014-04-23AE29914ND
2014-04-23AE29839ND
2014-04-23AE29840ND
2014-04-23AE29916ND
2014-04-24AE29947ND
2014-04-24AE29952ND
2014-07-21AE41025ND
2014-07-23AE41635ND
2014-07-23AE40895ND
2014-07-24AE40881ND
2014-07-24AE40886ND
2014-10-22AE53545ND
2014-10-22AE53537ND
2014-10-23AE53645ND
2014-10-23AE53646ND
2014-12-11AE59777ND
2014-12-29AE61209ND
2015-01-0512290021ND
2015-01-0712289949ND
2015-01-0712290044ND
2015-01-0712290064ND
2015-01-0712290084ND
2015-01-0812289959ND
2015-01-0812289989ND
2015-01-2212289928ND
2015-01-2312290001ND
2015-02-0312405405ND
2015-02-0312405531ND
2015-02-0412405363ND
2015-02-0412405384ND
2015-02-0412405426ND
2015-02-0412405447ND
2015-02-0412405468ND
2015-02-0412405489ND
2015-02-0412405510ND
2015-04-0612636864ND
2015-04-2212636885ND
2015-04-2312636822ND
2015-04-2912636843ND
2015-06-0312885171ND
2015-06-0412885150ND
2015-07-2013016815ND
2015-07-2213016581ND
2015-07-2213016602ND
2015-07-2313016539ND
2015-07-2313016560ND
2015-08-0513138453ND
2015-09-3013267568ND
2015-10-2113392029ND
2015-10-2213391966ND
2015-10-2213391987ND
2015-10-2213392008ND
2015-11-0213516767ND
2015-11-2313517522ND
2016-01-0613756206ND
2016-01-0613756227ND
2016-01-0613756311ND
2016-01-1113756164ND
2016-01-2013756143ND
2016-01-2013756185ND
2016-01-2113756080ND
2016-01-2113756101ND
2016-01-2113756122ND
2016-01-2813756248ND
2016-01-2813756269ND
2016-01-2813756290ND
2016-02-0513872919ND
2016-02-1013872940ND
2016-03-0313989333ND
2016-03-1513989375ND
2016-03-1713989354ND
2016-03-1813989396ND
2016-04-1114107135ND
2016-04-1114107156ND
2016-04-1114107177ND
2016-04-1114107219ND
2016-04-1114107240ND
2016-04-1414107198ND
2016-07-2914573696ND
2016-08-0214739176ND
2016-08-0414739099ND
2016-08-0414739120ND
2016-08-0414739139ND
2016-10-2415079394ND
2016-10-2415079415ND
2016-10-2415079436ND
2016-11-0715229350ND
2016-11-2115229371ND
2016-12-0115229915ND
2017-01-0315521178ND
2017-01-1615521220ND
2017-01-1815521115ND
2017-01-1815521136ND
2017-01-1815521199ND
2017-01-2415521157ND
2017-03-2815800267ND
2017-03-2915800288ND
2017-04-0315942285ND
2017-04-1215942327ND
2017-04-1715942222ND
2017-04-1715942243ND
2017-04-1915942264ND
2017-04-1915942306ND
2017-06-1916262187ND
2017-06-2016262208ND
2017-06-2016262229ND
2017-06-2116262250ND
2017-08-0716571185ND
2017-09-1516730777ND
2017-09-1816730714ND
2017-09-1816731948ND
2017-09-1916730735ND
2017-09-1916730756ND
2017-09-1916731864ND
2017-09-2016731885ND
2017-09-2016731906ND
2017-09-2016731927ND
2017-09-2716883588ND
2017-12-2017165316ND
2017-12-2117165342ND
2018-01-17AF74387ND
2018-01-29AF74797ND
2018-01-29AF74445ND
2018-01-29AF74447ND
2018-01-29AF74446ND
2018-01-29AF74448ND
2018-01-31AF74434ND
2018-01-31AF74435ND
2018-01-31AF74433ND
2018-01-31AF74431ND
2018-01-31AF74442ND
2018-01-31AF74441ND
2018-02-22AF74432ND
2018-02-26AF77278ND
2018-02-27AF77311ND
2018-02-27AF76921ND
2018-02-28AF77455ND
2018-02-28AF77456ND
2018-02-28AF77467ND
2018-03-26AF79915ND
2018-11-16AG01115ND
2019-01-28AG07059ND
2019-01-29AG07266ND
2019-03-04AG10320ND
2019-03-04AG10261ND
2019-03-06AG10532ND
2019-03-06AG10533ND
2019-03-06AG10552ND
2019-03-11AG10450ND
2019-03-13AG10482ND
2019-03-19AG10263ND
2019-03-19AG10265ND
2019-03-19AG10264ND
2019-03-26AG12576ND
2019-04-08AG13312ND
2019-04-08AG13600ND
2019-04-10AG12918ND
2019-04-24AG14544ND
2019-04-24AG14546ND
2019-05-06AG16471ND
2019-05-07AG16502ND
2019-05-30AG18878ND
2019-06-19AG20510ND
2019-10-16AG35352ND
2019-10-18AG36414ND
2019-10-23AG36111ND