Dalapon
Guilford Water Authority
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 |
|---|---|---|---|---|
| 2014 | ND | 4 | 0 | ND |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 8 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 1 | 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 |
|---|---|---|
| 2014-06-16 | 14062126-001 | ND |
| 2014-06-16 | 14062126-003 | ND |
| 2014-09-12 | 14091536-001 | ND |
| 2014-09-12 | 14091536-003 | ND |
| 2017-04-17 | 16214714 | ND |
| 2017-04-17 | 16052891 | ND |
| 2017-04-17 | 16214678 | ND |
| 2017-04-17 | 16052855 | ND |
| 2017-07-21 | 16686265 | ND |
| 2017-07-21 | 16526349 | ND |
| 2017-07-21 | 16686301 | ND |
| 2017-07-21 | 16526385 | ND |
| 2018-05-29 | 8055384-01 | ND |
| 2018-09-04 | 8091925-01 | ND |
| 2018-12-11 | 8122846-01 | ND |
| 2019-03-05 | 9032320-01 | ND |