Dalapon
Fairview Union Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
46
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 | 100.1 ppb | 4 | 4 | 69.1 ppb - 131.1 ppb |
| 2015 | 2.75 ppb | 8 | 6 | ND - 5.50 ppb |
| 2016 | 1.62 ppb | 12 | 8 | ND - 2.90 ppb |
| 2017 | 2.07 ppb | 12 | 8 | ND - 4.50 ppb |
| 2018 | ND | 4 | 0 | ND |
| 2019 | 2.77 ppb | 6 | 2 | ND - 8.30 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 |
|---|---|---|
| 2014-04-14 | AD90605 | 69.1 ppb |
| 2014-04-14 | AD90605 | 69.1 ppb |
| 2014-06-11 | AD92200 | 131.1 ppb |
| 2014-06-11 | AD92200 | 131.1 ppb |
| 2015-03-09 | 35178883001 | ND |
| 2015-03-09 | 35178883001 | ND |
| 2015-06-29 | 35195764003 | 5.50 ppb |
| 2015-06-29 | 35195764003 | 5.50 ppb |
| 2015-09-23 | 35208758013 | 2.80 ppb |
| 2015-09-23 | 35208758013 | 2.80 ppb |
| 2015-10-12 | 35211703001 | 2.70 ppb |
| 2015-10-12 | 35211703001 | 2.70 ppb |
| 2016-03-28 | 35236604007 | 1.90 ppb |
| 2016-03-28 | 35236604007 | 1.90 ppb |
| 2016-04-12 | 35239164008 | ND |
| 2016-04-12 | 35239164008 | ND |
| 2016-06-13 | 35250073010 | 2.50 ppb |
| 2016-06-13 | 35250073010 | 2.50 ppb |
| 2016-09-07 | 35264616003 | 2.90 ppb |
| 2016-09-07 | 35264616003 | 2.90 ppb |
| 2016-11-21 | 35279121005 | 2.40 ppb |
| 2016-11-21 | 35279123006 | ND |
| 2016-11-21 | 35279123006 | ND |
| 2016-11-21 | 35279121005 | 2.40 ppb |
| 2017-03-29 | 35303649005 | ND |
| 2017-03-29 | 35303649005 | ND |
| 2017-04-10 | 35306447002 | 2.40 ppb |
| 2017-04-10 | 35306447002 | 2.40 ppb |
| 2017-06-09 | 35318513012 | 4.50 ppb |
| 2017-06-09 | 35318513012 | 4.50 ppb |
| 2017-09-22 | 35338808012 | ND |
| 2017-09-22 | 35338808012 | ND |
| 2017-10-23 | 35344154001 | 2.50 ppb |
| 2017-10-23 | 35344154001 | 2.50 ppb |
| 2017-12-07 | 35362669001 | 3.00 ppb |
| 2017-12-07 | 35362669001 | 3.00 ppb |
| 2018-01-22 | 35370033001 | ND |
| 2018-01-22 | 35370033001 | ND |
| 2018-07-31 | 35408507001 | ND |
| 2018-07-31 | 35408507001 | ND |
| 2019-02-25 | 35450972001 | ND |
| 2019-02-25 | 35450972001 | ND |
| 2019-08-26 | 35493338001 | 8.30 ppb |
| 2019-08-26 | 35493338001 | 8.30 ppb |
| 2019-09-25 | 35500914001 | ND |
| 2019-09-25 | 35500914001 | ND |