Know Your Environment. Protect Your Health.

Dalapon

Highridge Water Authority

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

 

20

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
2019N/A00N/A
20200.417 ppb62ND - 1.50 ppb
2021ND80ND
20220.600 ppb21ND - 1.20 ppb
20230.250 ppb41ND - 1.000 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 Lab ID Result
2020-04-2122134100.00ND
2020-04-2122134072.00ND
2020-08-2423104014.001.000 ppb
2020-08-2423104037.001.50 ppb
2020-11-1023462165.00ND
2020-11-1023462166.00ND
2021-01-1323814269.00ND
2021-01-1323814270.00ND
2021-04-1424356022.00ND
2021-04-1424356023.00ND
2021-07-0624940067.00ND
2021-07-0624940069.00ND
2021-10-1225512274.00ND
2021-10-1225512275.00ND
2022-07-1927151591.00ND
2022-07-1927151593.001.20 ppb
2023-05-0229019043.00ND
2023-05-0229019056.00ND
2023-08-2929808362.00ND
2023-08-2929808351.001.000 ppb