Know Your Environment. Protect Your Health.

Dalapon

Harris County Municipal Utility District 211

NOTE: Harris County Municipal Utility District 211 purchases water from Harris County Municipal Utility District 233 which is required to test for dalapon. Sample information shown below was taken by Harris County Municipal Utility District 233.

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

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
2023ND10ND

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 211 purchases water from Harris County Municipal Utility District 233 which is required to test for dalapon. Sample information shown below was taken by Harris County Municipal Utility District 233.

Date Lab ID Result
2019-07-31AE76573ND
2019-07-31AE76661ND
2020-09-22AF28062ND
2021-06-07AF56652ND
2022-02-18AF85724ND
2022-05-19AF97698ND
2023-05-23AG41621ND