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EWG's Tap Water Database — 2021 UPDATE

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o-Dichlorobenzene

Winchendon Water Department

NOTE: Winchendon Water Department purchases water from Ash/win Joint Water Authority which is required to test for o-dichlorobenzene. Sample information shown below was taken by Ash/win Joint Water Authority.

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
2015ND10ND
2016ND10ND
2017ND10ND
2018ND10ND
2019ND10ND

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

NOTE: Winchendon Water Department purchases water from Ash/win Joint Water Authority which is required to test for o-dichlorobenzene. Sample information shown below was taken by Ash/win Joint Water Authority.

Date Result
2014-05-07ND
2015-04-29ND
2016-05-12ND
2017-05-03ND
2018-05-09ND
2019-04-11ND