Know Your Environment. Protect Your Health.

Dalapon

Chalk Hill Special Utility District

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

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND10ND
2020ND30ND
2021ND10ND
2022ND10ND
20230.308 ppb51ND - 1.54 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-06-20Q1824487002ND
2019-01-10Q1901411005ND
2020-03-23Q2012183002ND
2020-12-17Q2050083012ND
2020-12-17Q2050083013ND
2021-11-09Q2131359008ND
2022-12-13Q2237298010ND
2023-03-20Q2310465007ND
2023-05-23Q2319409001ND
2023-05-23Q23194090121.54 ppb
2023-07-27Q2330274001ND
2023-10-19Q2344966001ND