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EWG's Tap Water Database — 2021 UPDATE

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o-Dichlorobenzene

Loma Linda Power Plant

o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.

MORE ABOUT THIS CONTAMINANT

 

29

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND30ND
2016ND30ND
2017ND30ND
2018ND90ND
2019ND80ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 600 ppb

The EWG Health Guideline of 600 ppb for o-dichlorobenzene 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) 600 ppb

The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-05-074790-002-0840ND
2014-07-214790-002-0718ND
2014-09-174790-002-0800ND
2015-06-254790-002-0917ND
2015-09-184790-002-0630ND
2015-11-114790-002-0735ND
2016-05-164790-002-0815ND
2016-07-274790-002-0700ND
2016-07-274790-003-0700ND
2017-09-135810-001-1300ND
2017-11-285810-002-0832ND
2017-11-285810-004-0810ND
2018-05-085810-002-0955ND
2018-05-085810-004-0915ND
2018-07-115810-002-0640ND
2018-07-115810-004-0625ND
2018-09-105810-004-0800ND
2018-09-105810-002-0820ND
2018-11-125810-002-0910ND
2018-11-125810-004-0840ND
2018-11-295810-004-1250ND
2019-05-145810-004-0740ND
2019-05-145810-002-0650ND
2019-07-155810-004-0840ND
2019-07-155810-002-0815ND
2019-09-105810-004-0620ND
2019-09-105810-002-0730ND
2019-11-125810-002-0735ND
2019-11-125810-004-0720ND