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EWG's Tap Water Database — 2021 UPDATE

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Dalapon

City of Nampa

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

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
2016ND70ND
2017ND50ND
2018ND10ND
2019ND120ND

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
2016-04-20S1616221ND
2016-07-20S1632285ND
2016-10-07S1646180ND
2016-11-171652977ND
2016-11-17S1652977ND
2016-11-17S1652993ND
2016-11-17S1652982ND
2017-01-31S1703805ND
2017-01-31S1703804ND
2017-04-11S1714411ND
2017-08-09S1735777ND
2017-10-18S1748770ND
2018-10-08S1850028ND
2019-08-15S1940600ND
2019-08-15S1940599ND
2019-09-17S1946663ND
2019-09-17S1946664ND
2019-09-17S1946665ND
2019-09-17S1946666ND
2019-09-17S1946661ND
2019-09-18S1947017ND
2019-09-18S1947010ND
2019-09-18S1947008ND
2019-09-18S1947009ND
2019-09-18S1947007ND