Know Your Environment. Protect Your Health.

Dalapon

City of Richwood

NOTE: City of Richwood purchases water from Brazosport Water Authority which is required to test for dalapon. Sample information shown below was taken by Brazosport Water Authority.

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

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND80ND
2019ND100ND
2020ND100ND
2021ND80ND
2022ND100ND
2023ND90ND

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: City of Richwood purchases water from Brazosport Water Authority which is required to test for dalapon. Sample information shown below was taken by Brazosport Water Authority.

Date Lab ID Result
2018-01-22AE09661ND
2018-06-06AE28830ND
2019-02-07AE53589ND
2019-05-13AE65915ND
2020-03-17AF03340ND
2020-05-05AF09660ND
2021-01-21AF40428ND
2021-05-27AF55772ND
2022-01-24AF81413ND
2022-05-05AF95675ND
2023-05-15AG40431ND
2023-05-15AG40580ND
2023-08-24AG54085ND
2023-11-13AG63408ND