Know Your Environment. Protect Your Health.

Dalapon

Harris County Water Control and Improvement District 96

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

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019ND30ND
2020ND50ND
2021ND20ND
2022ND20ND
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
2018-07-17AE33520ND
2019-05-31AE68856ND
2019-08-13AE78369ND
2019-10-07AE85826ND
2020-02-05AE97147ND
2020-06-03AF13847ND
2020-06-03AF13951ND
2020-08-26AF25458ND
2020-11-30AF35878ND
2021-02-23AF43991ND
2021-06-09AF57417ND
2022-06-21AG01659ND
2022-06-21AG01768ND
2023-09-05AG54807ND
2023-09-05AG54896ND