Dalapon
Bayridge Subdivision Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
25
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 | ND | 4 | 0 | ND |
| 2016 | 0.525 ppb | 4 | 2 | ND - 1.10 ppb |
| 2017 | 0.350 ppb | 4 | 1 | ND - 1.40 ppb |
| 2018 | 0.350 ppb | 4 | 1 | ND - 1.40 ppb |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2014-02-20 | AC43830 | ND |
| 2014-04-01 | AC48892 | ND |
| 2014-09-10 | AC66554 | ND |
| 2014-12-09 | AC74028 | ND |
| 2015-02-11 | AC80166 | ND |
| 2015-06-16 | AC96153 | ND |
| 2015-07-30 | AD01764 | ND |
| 2015-11-06 | AD12943 | ND |
| 2016-02-04 | AD22088 | 1.10 ppb |
| 2016-02-04 | AD22237 | ND |
| 2016-04-28 | AD34611 | 1.000 ppb |
| 2016-11-29 | AD59346 | ND |
| 2017-03-14 | AD74870 | ND |
| 2017-04-12 | AD79451 | ND |
| 2017-07-06 | AD88453 | 1.40 ppb |
| 2017-10-24 | AE01792 | ND |
| 2018-02-15 | AE14013 | ND |
| 2018-05-03 | AE25047 | ND |
| 2018-09-13 | AE40012 | 1.40 ppb |
| 2018-11-07 | AE45602 | ND |
| 2019-02-21 | AE55288 | ND |
| 2019-02-21 | AE55435 | ND |
| 2019-05-20 | AE67078 | ND |
| 2019-08-21 | AE79844 | ND |
| 2019-11-07 | AE88889 | ND |