Know Your Environment. Protect Your Health.

Dalapon

Zachary Water System

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

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND160ND
2020N/A00N/A
2021ND10ND
2022ND40ND
2023N/A00N/A

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
2018-11-2635433146001ND
2018-11-2635433146001ND
2019-06-1835476846004ND
2019-06-1835476846003ND
2019-06-1835476846001ND
2019-06-1835476846002ND
2019-06-1835476846003ND
2019-06-1835476846004ND
2019-06-1835476846002ND
2019-06-1835476846001ND
2019-08-1235489898002ND
2019-08-1235489898004ND
2019-08-1235489898003ND
2019-08-1235489898002ND
2019-08-1235489898001ND
2019-08-1235489898004ND
2019-08-1235489898003ND
2019-08-1235489898001ND
2021-10-2035672362001ND
2022-06-0635724255001ND
2022-06-0635724255002ND
2022-06-0635724255003ND
2022-06-0635724255004ND