Know Your Environment. Protect Your Health.

Dalapon

St Bernard Parish 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
20180.600 ppb42ND - 1.20 ppb
2019ND40ND
2020ND20ND
20210.265 ppb21ND - 0.530 ppb
20220.260 ppb21ND - 0.520 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
2018-03-0635378295001ND
2018-03-0635378295001ND
2018-09-24354199830011.20 ppb
2018-09-24354199830011.20 ppb
2019-02-1435448755001ND
2019-02-1435448755001ND
2019-09-2435500301001ND
2019-09-2435500301001ND
2020-03-1035536678001ND
2020-11-1835593411001ND
2021-03-0935617728001ND
2021-10-26356738770010.530 ppb
2022-02-0935696480001ND
2022-10-20357548970010.520 ppb
2023-02-0835778323001ND
2023-10-1135834151001ND