Dalapon
St Bernard Parish Waterworks
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
22
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 | 7.76 ppb | 4 | 2 | ND - 15.5 ppb |
| 2015 | 1.000 ppb | 4 | 2 | ND - 2.00 ppb |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 2 | 0 | ND |
| 2018 | 0.600 ppb | 4 | 2 | ND - 1.20 ppb |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-01-21 | AD88468 | 15.5 ppb |
| 2014-01-21 | AD88468 | 15.5 ppb |
| 2014-10-03 | AD98042 | ND |
| 2014-10-03 | AD98042 | ND |
| 2015-03-30 | 35181567002 | ND |
| 2015-03-30 | 35181567002 | ND |
| 2015-10-06 | 35211176004 | 2.00 ppb |
| 2015-10-06 | 35211176004 | 2.00 ppb |
| 2016-02-17 | 35230188004 | ND |
| 2016-02-17 | 35230188004 | ND |
| 2016-12-08 | 35282294002 | ND |
| 2016-12-08 | 35282294002 | ND |
| 2017-02-16 | 35296025001 | ND |
| 2017-02-16 | 35296025001 | ND |
| 2018-03-06 | 35378295001 | ND |
| 2018-03-06 | 35378295001 | ND |
| 2018-09-24 | 35419983001 | 1.20 ppb |
| 2018-09-24 | 35419983001 | 1.20 ppb |
| 2019-02-14 | 35448755001 | ND |
| 2019-02-14 | 35448755001 | ND |
| 2019-09-24 | 35500301001 | ND |
| 2019-09-24 | 35500301001 | ND |