Dalapon
Hamlet Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
10
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 1 | 0 | ND |
| 2016 | ND | 2 | 0 | ND |
| 2017 | N/A | 0 | 0 | N/A |
| 2018 | 0.367 ppb | 3 | 1 | ND - 1.10 ppb |
| 2019 | ND | 4 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2015-01-28 | ND | |
| 2016-05-17 | CZ07365-01 | ND |
| 2016-07-05 | CZ10308-01 | ND |
| 2018-04-17 | CB06028-01 | ND |
| 2018-07-17 | CB10987-01 | 1.10 ppb |
| 2018-11-06 | CB17695-01 | ND |
| 2019-02-05 | CC02112-01 | ND |
| 2019-05-01 | CC06948-01 | ND |
| 2019-08-13 | CC13829-01 | ND |
| 2019-11-19 | CC19714-01RE1 | ND |