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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

Pomona Water Department

The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.

 

51

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
2014ND50ND
2015ND200ND
2016ND20ND
2017ND40ND
2018ND140ND
2019ND60ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for dalapon, established in 1992, was based on a toxicity study in laboratory animals published in 1960.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-199590-051-1311ND
2014-07-029590-032-0813ND
2014-08-289590-027-0930ND
2014-10-099590-032-1010ND
2014-11-129590-027-0825ND
2015-02-269590-036-0922ND
2015-03-059590-035-0953ND
2015-04-019590-010-0830ND
2015-04-029590-052-0926ND
2015-04-069590-069-1101ND
2015-04-089590-025-0914ND
2015-04-149590-013-0935ND
2015-04-149590-031-0838ND
2015-04-169590-040-0810ND
2015-05-079590-036-0917ND
2015-06-109590-028-0844ND
2015-06-309590-035-0914ND
2015-07-019590-052-1029ND
2015-07-069590-069-1043ND
2015-07-079590-010-0821ND
2015-07-089590-025-0824ND
2015-07-149590-040-0835ND
2015-07-219590-031-0850ND
2015-09-109590-028-0832ND
2015-10-209590-036-0945ND
2016-03-239590-051-1036ND
2016-06-309590-051-0908ND
2017-07-199590-032-1405ND
2017-07-249590-027-1415ND
2017-10-249590-027-1052ND
2017-10-259590-032-1115ND
2018-04-129590-052-1056ND
2018-04-129590-069-1321ND
2018-04-129590-010-0920ND
2018-04-179590-025-1509ND
2018-04-189590-040-1330ND
2018-06-149590-028-1317ND
2018-07-199590-052-1255ND
2018-07-199590-031-0951ND
2018-07-199590-010-1138ND
2018-07-239590-040-1225ND
2018-07-249590-069-1124ND
2018-07-259590-025-0820ND
2018-08-149590-028-1043ND
2018-10-249590-031-1035ND
2019-04-179590-051-1110ND
2019-04-179590-036-1005ND
2019-04-179590-035-1010ND
2019-07-109590-051-1140ND
2019-07-109590-036-1356ND
2019-07-109590-035-1437ND