Know Your Environment. Protect Your Health.

Dalapon

Gretna 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
2018ND40ND
20192.55 ppb42ND - 5.10 ppb
2020ND20ND
20210.315 ppb21ND - 0.630 ppb
20220.355 ppb21ND - 0.710 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
2018-01-3035371297005ND
2018-01-3035371297005ND
2018-10-0235421766001ND
2018-10-0235421766001ND
2019-02-0535446730001ND
2019-02-0535446730001ND
2019-08-14354904130015.10 ppb
2019-08-14354904130015.10 ppb
2020-03-1835538511001ND
2020-10-2635587648001ND
2021-03-0135615731001ND
2021-12-08356836660020.630 ppb
2022-01-1335690761001ND
2022-08-04357372490010.710 ppb
2023-02-0135777180001ND
2023-10-1135834160001ND