Dalapon
Rayburn Country Municipal Utility District
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
58
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 0.400 ppb | 8 | 2 | ND - 1.70 ppb |
| 2019 | 2.23 ppb | 8 | 8 | 1.20 ppb - 3.50 ppb |
| 2020 | 2.83 ppb | 12 | 12 | 1.000 ppb - 4.50 ppb |
| 2021 | 3.03 ppb | 10 | 9 | ND - 4.40 ppb |
| 2022 | 2.62 ppb | 10 | 10 | 1.000 ppb - 3.70 ppb |
| 2023 | 1.79 ppb | 10 | 7 | ND - 4.10 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 |
|---|---|---|
| 2018-02-13 | AE13529 | ND |
| 2018-02-13 | AE13528 | ND |
| 2018-06-12 | AE29448 | ND |
| 2018-06-12 | AE29443 | ND |
| 2018-07-18 | AE33766 | ND |
| 2018-07-18 | AE33780 | ND |
| 2018-10-15 | AE43420 | 1.50 ppb |
| 2018-10-15 | AE43421 | 1.70 ppb |
| 2019-02-19 | AE54814 | 2.00 ppb |
| 2019-02-19 | AE54819 | 2.40 ppb |
| 2019-04-02 | AE60817 | 1.80 ppb |
| 2019-04-02 | AE60819 | 1.20 ppb |
| 2019-07-11 | AE74115 | 3.50 ppb |
| 2019-07-11 | AE74116 | 1.70 ppb |
| 2019-12-12 | AE92288 | 3.40 ppb |
| 2019-12-12 | AE92289 | 1.80 ppb |
| 2020-02-19 | AE99260 | 2.40 ppb |
| 2020-02-19 | AE99261 | 2.90 ppb |
| 2020-06-10 | AF15037 | 3.40 ppb |
| 2020-06-10 | AF15039 | 3.40 ppb |
| 2020-07-23 | AF20400 | 4.30 ppb |
| 2020-07-23 | AF20401 | 2.10 ppb |
| 2020-07-23 | AF20500 | 1.30 ppb |
| 2020-07-23 | AF20502 | 3.50 ppb |
| 2020-11-12 | AF34372 | 4.50 ppb |
| 2020-11-12 | AF34373 | 2.40 ppb |
| 2020-11-12 | AF34438 | 1.000 ppb |
| 2020-11-12 | AF34439 | 2.70 ppb |
| 2021-01-13 | AF39233 | 3.80 ppb |
| 2021-01-13 | AF39067 | 3.50 ppb |
| 2021-01-13 | AF39066 | 4.40 ppb |
| 2021-01-13 | AF39228 | ND |
| 2021-05-05 | AF52516 | 2.70 ppb |
| 2021-05-05 | AF52517 | 2.20 ppb |
| 2021-08-24 | AF67654 | 3.70 ppb |
| 2021-08-24 | AF67656 | 2.90 ppb |
| 2021-10-13 | AF73314 | 3.70 ppb |
| 2021-10-13 | AF73315 | 3.40 ppb |
| 2022-02-09 | AF83947 | 1.20 ppb |
| 2022-02-09 | AF83948 | 3.70 ppb |
| 2022-03-29 | AF91091 | 1.000 ppb |
| 2022-03-29 | AF91093 | 3.00 ppb |
| 2022-04-18 | AF93498 | 3.60 ppb |
| 2022-04-18 | AF93499 | 2.40 ppb |
| 2022-07-14 | AG04714 | 3.60 ppb |
| 2022-07-14 | AG04715 | 1.80 ppb |
| 2022-12-27 | AG22954 | 2.90 ppb |
| 2022-12-27 | AG22955 | 3.00 ppb |
| 2023-02-16 | AG29302 | ND |
| 2023-02-16 | AG29303 | 2.90 ppb |
| 2023-02-16 | AG29414 | 2.80 ppb |
| 2023-02-16 | AG29428 | ND |
| 2023-05-04 | AG39365 | 3.00 ppb |
| 2023-05-04 | AG39366 | 1.000 ppb |
| 2023-09-25 | AG57417 | 2.90 ppb |
| 2023-09-25 | AG57419 | 1.20 ppb |
| 2023-10-10 | AG59084 | 4.10 ppb |
| 2023-10-10 | AG59087 | ND |