Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dalapon

City of Surprise - Mountain Vista

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

MORE ABOUT THIS CONTAMINANT

 

46

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND10ND
2016ND50ND
2017ND40ND
2018ND160ND
2019ND160ND

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
2014-01-224011817-04SND
2014-01-224011817-03SND
2014-01-224011817-02SND
2014-01-224011817-01SND
2015-01-215011694-04ND
2016-01-256012035-04TND
2016-01-256012035-03TND
2016-01-256012035-03SND
2016-01-256012035-02TND
2016-01-256012035-01TND
2017-01-307012591-04SND
2017-01-307012591-01SND
2017-01-307012591-02SND
2017-01-307012591-03SND
2018-01-0818A0734-04SOCND
2018-01-0818A0734-03SOCND
2018-01-0818A0734-02SOCND
2018-01-0818A0734-01SOCND
2018-04-0918D0971-04 SOCND
2018-04-0918D0971-03 SOCND
2018-04-0918D0971-02 SOCND
2018-04-0918D0971-01 SOCND
2018-07-0918G0785-04 SOCND
2018-07-0918G0785-03 SOCND
2018-07-0918G0785-02 SOCND
2018-07-0918G0785-01 SOCND
2018-10-0818J0826-04ND
2018-10-0818J0826-03ND
2018-10-0818J0826-02ND
2018-10-0818J0826-01ND
2019-01-2319A2463-01ND
2019-01-2319A2463-02ND
2019-01-2319A2463-03ND
2019-01-2319A2463-04ND
2019-04-2919D3107-04ND
2019-04-2919D3107-03ND
2019-04-2919D3107-02ND
2019-04-2919D3107-01ND
2019-07-1019G1241-04ND
2019-07-1019G1241-03ND
2019-07-1019G1241-02ND
2019-07-1019G1241-01ND
2019-10-0919J1279-01ND
2019-10-0919J1279-04ND
2019-10-0919J1279-03ND
2019-10-0919J1279-02ND