Dalapon
Bethlehem Water District No. 1
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | 0.700 ppb | 3 | 1 | ND - 2.10 ppb |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | 0.500 ppb | 5 | 1 | ND - 2.50 ppb |
| 2017 | 0.687 ppb | 3 | 1 | ND - 2.06 ppb |
| 2018 | N/A | 0 | 0 | N/A |
| 2019 | 1.07 ppb | 3 | 1 | ND - 3.20 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 |
|---|---|---|
| 2014-10-15 | JH1407377-SOC | 2.10 ppb |
| 2014-10-15 | JH1440736-SOC | ND |
| 2014-10-22 | JH1407553-SOCS | ND |
| 2016-04-19 | JH1602760-SOC | ND |
| 2016-04-25 | JH1602919-SOC | ND |
| 2016-04-25 | JH1604132-SOC | 2.50 ppb |
| 2016-04-25 | JH1602918-SOC | ND |
| 2016-05-10 | JH1603632-SOC | ND |
| 2017-10-18 | JH1708514.SOC | ND |
| 2017-10-18 | JH1708529.SOC | ND |
| 2017-10-18 | JH1708532.SOC | 2.06 ppb |
| 2019-04-02 | JH1901939.SOCS | ND |
| 2019-04-02 | JH1901942.SOC | 3.20 ppb |
| 2019-04-26 | JH1901940.SOC | ND |