Know Your Environment. Protect Your Health.

Dalapon

Grape Hammock

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

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.750 ppb21ND - 1.50 ppb
20191.10 ppb31ND - 3.30 ppb
20201.90 ppb111.90 ppb
2021ND10ND
2022N/A00N/A
20230.660 ppb110.660 ppb

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 Result
2018-08-151.50 ppb
2018-12-20ND
2019-02-13ND
2019-05-21ND
2019-07-173.30 ppb
2020-09-211.90 ppb
2021-09-16ND
2023-09-200.660 ppb