Dalapon
Town of Quintana
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | 0.500 ppb | 4 | 1 | ND - 2.00 ppb |
2015 | ND | 4 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
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 |
---|---|---|
2014-02-12 | AC42441 | ND |
2014-05-06 | AC53206 | ND |
2014-07-15 | AC59766 | 2.00 ppb |
2014-11-25 | AC73035 | ND |
2015-01-27 | AC77907 | ND |
2015-04-17 | AC88764 | ND |
2015-08-13 | AD04086 | ND |
2015-11-10 | AD13163 | ND |
2016-01-19 | AD18563 | ND |
2016-04-11 | AD32538 | ND |
2016-04-11 | AD32639 | ND |
2016-10-18 | AD53534 | ND |
2016-12-07 | AD60872 | ND |
2017-02-15 | AD70835 | ND |
2017-05-09 | AD83286 | ND |
2017-08-21 | AD93716 | ND |
2017-10-10 | AE00039 | ND |
2018-02-07 | AE12960 | ND |
2018-04-25 | AE23888 | ND |
2018-07-31 | AE35058 | ND |
2018-11-15 | AE46229 | ND |
2019-02-06 | AE53471 | ND |
2019-04-03 | AE61000 | ND |
2019-04-03 | AE61086 | ND |
2019-07-09 | AE73669 | ND |
2019-10-22 | AE87223 | ND |