Know Your Environment. Protect Your Health.

Dalapon

Smackover Waterworks

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

 

17

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020ND40ND
20212.35 ppb41ND - 9.40 ppb
2022ND20ND
2023ND50ND

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 Lab ID Result
2018-01-3018032002302ND
2018-05-2218144007402ND
2020-01-2720030004508ND
2020-01-2720030004608ND
2020-06-0120156008502ND
2020-06-0120156008402ND
2021-03-0821070008302ND
2021-06-07211610001029.40 ppb
2021-08-2321238002401ND
2021-11-0821314008201ND
2022-01-2422027007302ND
2022-05-25O198474-MCP-1ND
2023-01-31O205868-MCP-1ND
2023-01-31O205869-MCP-1ND
2023-05-31O209479-MCP-1ND
2023-05-31O209481-MCP-1ND
2023-05-31O209480-MCP-1ND