Dalapon
City of Mount Holly
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
14
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 | N/A | 0 | 0 | N/A |
| 2016 | 0.275 ppb | 4 | 1 | ND - 1.10 ppb |
| 2017 | ND | 5 | 0 | ND |
| 2018 | 0.800 ppb | 2 | 1 | ND - 1.60 ppb |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2016-07-14 | 92305344004SOC | ND |
| 2016-08-10 | 92308591001SOC | ND |
| 2016-08-10 | 92308591002SOC | 1.10 ppb |
| 2016-10-06 | 92315311004SOC | ND |
| 2017-01-10 | 92325982003SOC | ND |
| 2017-04-06 | 92336428003SOC | ND |
| 2017-07-13 | 92347613003SOC | ND |
| 2017-08-09 | 92351086008SOC | ND |
| 2017-10-05 | 92358187004SOC | ND |
| 2018-08-07 | 92394976008SOC | ND |
| 2018-09-06 | 92398590004SOC | 1.60 ppb |
| 2019-07-10 | 37729_19-29339 | ND |
| 2019-08-14 | 37729_19-35490 | ND |
| 2019-10-14 | 92449660001_1271 | ND |