Know Your Environment. Protect Your Health.

Dalapon

Town of Quintana

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND50ND
20200.925 ppb42ND - 2.50 ppb
20210.625 ppb42ND - 1.50 ppb
20220.240 ppb51ND - 1.20 ppb
20230.700 ppb41ND - 2.80 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
2018-02-07AE12960ND
2018-04-25AE23888ND
2018-07-31AE35058ND
2018-11-15AE46229ND
2019-02-06AE53471ND
2019-04-03AE61000ND
2019-04-03AE61086ND
2019-07-09AE73669ND
2019-10-22AE87223ND
2020-02-10AE975891.20 ppb
2020-05-11AF10356ND
2020-07-28AF211092.50 ppb
2020-12-09AF37034ND
2021-01-21AF403451.000 ppb
2021-04-27AF516481.50 ppb
2021-07-29AF64027ND
2021-10-18AF73755ND
2022-01-20AF80958ND
2022-01-20AF81051ND
2022-05-10AF96468ND
2022-08-23AG10475ND
2022-10-20AG178091.20 ppb
2023-02-02AG27151ND
2023-04-12AG364662.80 ppb
2023-08-09AG52101ND
2023-11-17AG64179ND