Dalapon
Lake Conroe Terrace Water System
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
9
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2015-03-17 | AC84806 | ND |
| 2015-06-11 | AC95719 | ND |
| 2015-06-11 | AC95764 | ND |
| 2015-09-14 | AD06974 | ND |
| 2015-12-01 | AD14996 | ND |
| 2016-09-14 | AD49343 | ND |
| 2017-08-10 | AD92711 | ND |
| 2018-02-07 | AE12829 | ND |
| 2018-08-23 | AE38397 | ND |