Know Your Environment. Protect Your Health.

Dalapon

Harris County Municipal Utility District 196

NOTE: Harris County Municipal Utility District 196 purchases water from West Harris County Regional Water Authority which is required to test for dalapon. Sample information shown below was taken by West Harris County Regional Water Authority.

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

 

4

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND80ND
2020ND100ND
2021ND80ND
2022ND80ND
2023ND100ND

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

NOTE: Harris County Municipal Utility District 196 purchases water from West Harris County Regional Water Authority which is required to test for dalapon. Sample information shown below was taken by West Harris County Regional Water Authority.

Date Lab ID Result
2018-09-13AE39998ND
2021-06-30AF60114ND
2022-06-08AF99978ND
2023-09-11AG55493ND