Know Your Environment. Protect Your Health.

Dalapon

Red Oak Terrace

NOTE: Red Oak Terrace purchases water from City of Tomball which is required to test for dalapon. Sample information shown below was taken by City of Tomball.

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
2018ND20ND
2019ND10ND
2020ND40ND
2021ND20ND
2022ND10ND
2023ND40ND

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: Red Oak Terrace purchases water from City of Tomball which is required to test for dalapon. Sample information shown below was taken by City of Tomball.

Date Lab ID Result
2018-06-06AE28791ND
2018-06-06AE28792ND
2019-05-16AE66799ND
2019-05-16AE66800ND
2020-03-04AF01185ND
2020-03-04AF01195ND
2020-05-18AF11585ND
2020-05-18AF11586ND
2021-05-21AF55088ND
2021-05-21AF55092ND
2022-05-12AF96666ND
2022-05-12AF96668ND
2023-03-16AG33399ND
2023-03-16AG33400ND
2023-05-12AG40439ND
2023-05-12AG40440ND