Know Your Environment. Protect Your Health.

Dalapon

Thibodaux Waterworks

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

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.700 ppb42ND - 1.40 ppb
2019ND40ND
2020ND20ND
2021ND20ND
20220.295 ppb21ND - 0.590 ppb
2023ND20ND

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
2018-01-2535370415010ND
2018-01-2535370415010ND
2018-07-23354062920011.40 ppb
2018-07-23354062920011.40 ppb
2019-01-2935445087001ND
2019-01-2935445087001ND
2019-07-2435484852001ND
2019-07-2435484852001ND
2020-01-2235526014001ND
2020-10-1535585521001ND
2021-03-1135619284001ND
2021-11-0435675780001ND
2022-02-1035696479001ND
2022-08-25357427330010.590 ppb
2023-02-2735782421001ND
2023-10-2335836722001ND