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EWG's Tap Water Database — 2021 UPDATE

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Hexachlorobutadiene

Grafton Water District

Hexachlorobutadiene is an industrial chemical and possible human carcinogen.

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57

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND100ND
2016ND90ND
2017ND90ND
2018ND80ND
2019ND120ND

ppb = parts per billion

All test results

Date Result
2014-01-29ND
2014-04-07ND
2014-05-12ND
2014-05-12ND
2014-05-12ND
2014-05-12ND
2014-05-12ND
2014-07-15ND
2014-11-03ND
2015-01-21ND
2015-04-14ND
2015-04-14ND
2015-04-14ND
2015-04-14ND
2015-04-14ND
2015-04-27ND
2015-07-14ND
2015-10-21ND
2015-11-09ND
2016-02-02ND
2016-04-14ND
2016-04-14ND
2016-04-14ND
2016-04-14ND
2016-04-14ND
2016-06-09ND
2016-07-20ND
2016-10-07ND
2017-02-22ND
2017-02-22ND
2017-05-03ND
2017-05-03ND
2017-05-03ND
2017-05-31ND
2017-05-31ND
2017-05-31ND
2017-10-17ND
2018-04-19ND
2018-04-19ND
2018-04-19ND
2018-04-19ND
2018-04-19ND
2018-06-27ND
2018-08-02ND
2018-11-06ND
2019-01-16ND
2019-02-26ND
2019-05-08ND
2019-05-08ND
2019-05-08ND
2019-05-20ND
2019-05-28ND
2019-05-28ND
2019-08-06ND
2019-08-20ND
2019-09-04ND
2019-10-22ND