Dalapon
Sandy Point 480 Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
26
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 | 80.4 ppb | 4 | 4 | 69.1 ppb - 91.8 ppb |
| 2015 | ND | 4 | 0 | ND |
| 2016 | 1.15 ppb | 4 | 2 | ND - 2.30 ppb |
| 2017 | 3.35 ppb | 4 | 4 | 2.10 ppb - 4.60 ppb |
| 2018 | 5.25 ppb | 4 | 2 | ND - 10.5 ppb |
| 2019 | 1.93 ppb | 6 | 2 | ND - 5.80 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 |
|---|---|---|
| 2014-04-14 | AD90603 | 69.1 ppb |
| 2014-04-14 | AD90603 | 69.1 ppb |
| 2014-05-07 | AD91346 | 91.8 ppb |
| 2014-05-07 | AD91346 | 91.8 ppb |
| 2015-03-09 | 35178883002 | ND |
| 2015-03-09 | 35178883002 | ND |
| 2015-10-12 | 35211703002 | ND |
| 2015-10-12 | 35211703002 | ND |
| 2016-04-12 | 35239164009 | 2.30 ppb |
| 2016-04-12 | 35239164009 | 2.30 ppb |
| 2016-11-21 | 35279123005 | ND |
| 2016-11-21 | 35279123005 | ND |
| 2017-04-10 | 35306447003 | 2.10 ppb |
| 2017-04-10 | 35306447003 | 2.10 ppb |
| 2017-10-23 | 35344158001 | 4.60 ppb |
| 2017-10-23 | 35344158001 | 4.60 ppb |
| 2018-01-22 | 35370032001 | ND |
| 2018-01-22 | 35370032001 | ND |
| 2018-07-31 | 35408506001 | 10.5 ppb |
| 2018-07-31 | 35408506001 | 10.5 ppb |
| 2019-02-25 | 35450974001 | ND |
| 2019-02-25 | 35450974001 | ND |
| 2019-08-26 | 35493340001 | 5.80 ppb |
| 2019-08-26 | 35493340001 | 5.80 ppb |
| 2019-09-25 | 35500916001 | ND |
| 2019-09-25 | 35500916001 | ND |