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EWG's Tap Water Database — 2021 UPDATE

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Monochlorobenzene (chlorobenzene)

Kenai Water 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.

 

39

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND60ND
2016ND50ND
2017ND90ND
2018ND120ND
2019ND40ND

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
2014-05-28VO*A1405410-01AND
2014-08-04VO*A1408063-01AND
2014-10-08VO*A1410215-01AND
2015-04-09VO*1151393001ND
2015-07-07VO*1153554001ND
2015-07-07VO*1153554002ND
2015-07-07VO*1153554003ND
2015-07-07VO*1153554004ND
2015-12-09VO*1157136001ND
2016-04-27VO*1162050002ND
2016-04-27VO*1162050001ND
2016-07-13VO*280-85767-13ND
2016-07-13VO*280-85767-2ND
2016-07-13VO*280-85767-7ND
2017-03-23VO*440-180746-4ND
2017-03-23VO*440-180746-3ND
2017-03-23VO*440-180746-2ND
2017-08-01VO*3748425ND
2017-08-01VO*3748426ND
2017-08-01VO*3748427ND
2017-10-05VO*3797335ND
2017-10-05VO*3797333ND
2017-10-05VO*3797334ND
2018-03-06VO*3887124ND
2018-03-06VO*3887123ND
2018-03-06VO*3887122ND
2018-04-18VO*3917716ND
2018-04-18VO*3917717ND
2018-04-18VO*3917718ND
2018-08-15VO*4033430ND
2018-08-15VO*4033431ND
2018-08-15VO*4033432ND
2018-10-22VO*4100584ND
2018-10-22VO*4100585ND
2018-10-22VO*4100586ND
2019-02-06X440-233449-3ND
2019-02-06X440-233449-2ND
2019-02-06X440-233449-1ND
2019-03-11X440-236307-1ND