Know Your Environment. Protect Your Health.

Dalapon

Guadalupe Blanco River Authority

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

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND50ND
2020ND50ND
2021ND50ND
2022ND50ND
2023ND50ND

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
2018-03-01AE16412ND
2018-03-01AE16299ND
2018-05-31AE28274ND
2018-08-28AE38637ND
2018-11-14AE46062ND
2019-02-25AE55932ND
2019-02-25AE56070ND
2019-05-21AE67623ND
2019-08-20AE79500ND
2019-10-22AE87207ND
2020-03-16AF02901ND
2020-03-16AF03032ND
2020-05-26AF12867ND
2020-09-10AF26987ND
2020-11-18AF35080ND
2021-03-22AF47837ND
2021-03-22AF47890ND
2021-06-02AF56438ND
2021-08-18AF66851ND
2021-11-09AF76394ND
2022-02-14AF84588ND
2022-02-14AF84707ND
2022-04-26AF94603ND
2022-08-18AG09979ND
2022-11-29AG20252ND
2023-02-15AG29031ND
2023-02-15AG29128ND
2023-04-18AG37031ND
2023-07-24AG49806ND
2023-10-18AG60209ND