Dalapon
North Myrtle Beach
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | N/A | 0 | 0 | N/A |
2015 | ND | 1 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | 1.20 ppb | 1 | 1 | 1.20 ppb |
2019 | 0.433 ppb | 3 | 1 | ND - 1.30 ppb |
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 |
---|---|---|
2015-08-24 | AD59910 | ND |
2018-08-30 | AE17480 | 1.20 ppb |
2019-02-05 | AE24970 | ND |
2019-07-30 | AE34322 | ND |
2019-10-10 | AE38547 | 1.30 ppb |