Dalapon
Newellton Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
16
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 | 0.950 ppb | 4 | 2 | ND - 1.90 ppb |
| 2019 | 4.20 ppb | 4 | 2 | ND - 8.40 ppb |
| 2020 | 0.850 ppb | 2 | 1 | ND - 1.70 ppb |
| 2021 | ND | 2 | 0 | ND |
| 2022 | 1.35 ppb | 2 | 1 | ND - 2.70 ppb |
| 2023 | 2.00 ppb | 2 | 2 | 0.790 ppb - 3.20 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 |
|---|---|---|
| 2018-01-08 | 35367824001 | 1.90 ppb |
| 2018-01-08 | 35367824001 | 1.90 ppb |
| 2018-07-30 | 35407879001 | ND |
| 2018-07-30 | 35407879001 | ND |
| 2019-01-14 | 35442603002 | ND |
| 2019-01-14 | 35442603002 | ND |
| 2019-07-31 | 35486738001 | 8.40 ppb |
| 2019-07-31 | 35486738001 | 8.40 ppb |
| 2020-01-06 | 35523110001 | ND |
| 2020-08-12 | 35570543002 | 1.70 ppb |
| 2021-01-18 | 35605842002 | ND |
| 2021-09-15 | 35664395001 | ND |
| 2022-01-18 | 35692112002 | 2.70 ppb |
| 2022-08-15 | 35741176002 | ND |
| 2023-02-06 | 35778177003 | 3.20 ppb |
| 2023-07-18 | 35814094001 | 0.790 ppb |