Dalapon
City of Houston Willow Chase
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
104
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 | 20 | 0 | ND |
| 2015 | ND | 16 | 0 | ND |
| 2016 | ND | 16 | 0 | ND |
| 2017 | ND | 20 | 0 | ND |
| 2018 | ND | 16 | 0 | ND |
| 2019 | ND | 16 | 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 |
|---|---|---|
| 2014-03-06 | AC46021 | ND |
| 2014-03-06 | AC46022 | ND |
| 2014-03-06 | AC46023 | ND |
| 2014-03-06 | AC45966 | ND |
| 2014-03-06 | AC45967 | ND |
| 2014-03-06 | AC45974 | ND |
| 2014-03-06 | AC45957 | ND |
| 2014-05-20 | AC54709 | ND |
| 2014-05-20 | AC54711 | ND |
| 2014-05-20 | AC54710 | ND |
| 2014-05-20 | AC54712 | ND |
| 2014-05-20 | AC54692 | ND |
| 2014-08-14 | AC63791 | ND |
| 2014-08-14 | AC63793 | ND |
| 2014-08-14 | AC63794 | ND |
| 2014-08-14 | AC63789 | ND |
| 2014-12-18 | AC75449 | ND |
| 2014-12-18 | AC75450 | ND |
| 2014-12-18 | AC75434 | ND |
| 2014-12-18 | AC75445 | ND |
| 2015-03-05 | AC82709 | ND |
| 2015-03-05 | AC82689 | ND |
| 2015-03-05 | AC82710 | ND |
| 2015-03-05 | AC82711 | ND |
| 2015-05-29 | AC93957 | ND |
| 2015-05-29 | AC94008 | ND |
| 2015-05-29 | AC94002 | ND |
| 2015-05-29 | AC93998 | ND |
| 2015-09-17 | AD07545 | ND |
| 2015-09-17 | AD07559 | ND |
| 2015-09-17 | AD07542 | ND |
| 2015-09-17 | AD07544 | ND |
| 2015-12-08 | AD15933 | ND |
| 2015-12-08 | AD15959 | ND |
| 2015-12-08 | AD15957 | ND |
| 2015-12-08 | AD15956 | ND |
| 2016-03-03 | AD26845 | ND |
| 2016-03-03 | AD26844 | ND |
| 2016-03-03 | AD26843 | ND |
| 2016-03-03 | AD26849 | ND |
| 2016-06-03 | AD39365 | ND |
| 2016-06-03 | AD39368 | ND |
| 2016-06-03 | AD39362 | ND |
| 2016-06-03 | AD39413 | ND |
| 2016-09-22 | AD50726 | ND |
| 2016-09-22 | AD50714 | ND |
| 2016-09-22 | AD50725 | ND |
| 2016-09-22 | AD50717 | ND |
| 2016-11-21 | AD58771 | ND |
| 2016-11-21 | AD58772 | ND |
| 2016-11-21 | AD58770 | ND |
| 2016-11-21 | AD58773 | ND |
| 2017-03-02 | AD73242 | ND |
| 2017-03-02 | AD73243 | ND |
| 2017-03-02 | AD73086 | ND |
| 2017-03-02 | AD73089 | ND |
| 2017-03-02 | AD73087 | ND |
| 2017-03-02 | AD73085 | ND |
| 2017-05-31 | AD86216 | ND |
| 2017-05-31 | AD86225 | ND |
| 2017-05-31 | AD86107 | ND |
| 2017-05-31 | AD86108 | ND |
| 2017-05-31 | AD86106 | ND |
| 2017-05-31 | AD86109 | ND |
| 2017-08-15 | AD93059 | ND |
| 2017-08-15 | AD93060 | ND |
| 2017-08-15 | AD93058 | ND |
| 2017-08-15 | AD93061 | ND |
| 2017-12-04 | AE06558 | ND |
| 2017-12-04 | AE06557 | ND |
| 2017-12-04 | AE06556 | ND |
| 2017-12-04 | AE06555 | ND |
| 2018-01-31 | AE11531 | ND |
| 2018-01-31 | AE11530 | ND |
| 2018-01-31 | AE11527 | ND |
| 2018-01-31 | AE11529 | ND |
| 2018-04-11 | AE22016 | ND |
| 2018-04-11 | AE22023 | ND |
| 2018-04-11 | AE22022 | ND |
| 2018-04-11 | AE22004 | ND |
| 2018-08-15 | AE37138 | ND |
| 2018-08-15 | AE37139 | ND |
| 2018-08-15 | AE37137 | ND |
| 2018-08-15 | AE37136 | ND |
| 2018-11-07 | AE45580 | ND |
| 2018-11-07 | AE45582 | ND |
| 2018-11-07 | AE45581 | ND |
| 2018-11-07 | AE45579 | ND |
| 2019-02-28 | AE56533 | ND |
| 2019-02-28 | AE56534 | ND |
| 2019-02-28 | AE56535 | ND |
| 2019-02-28 | AE56536 | ND |
| 2019-05-20 | AE67107 | ND |
| 2019-05-20 | AE67109 | ND |
| 2019-05-20 | AE67114 | ND |
| 2019-05-20 | AE67108 | ND |
| 2019-09-23 | AE84226 | ND |
| 2019-09-23 | AE84228 | ND |
| 2019-09-23 | AE84230 | ND |
| 2019-09-23 | AE84231 | ND |
| 2019-11-22 | AE90353 | ND |
| 2019-11-22 | AE90359 | ND |
| 2019-11-22 | AE90352 | ND |
| 2019-11-22 | AE90350 | ND |