Dalapon
The Oaks Water Supply Corporation
NOTE: The Oaks Water Supply Corporation purchases water from San Antonio Water System which is required to test for dalapon. Sample information shown below was taken by San Antonio Water System.
The herbicide dalapon has not been used in the U.S. since 1999. In animal studies, exposure to dalapon harms the kidneys.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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
NOTE: The Oaks Water Supply Corporation purchases water from San Antonio Water System which is required to test for dalapon. Sample information shown below was taken by San Antonio Water System.
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-27 | AE15707 | ND |
| 2018-02-27 | AE15708 | ND |
| 2018-02-27 | AE15709 | ND |
| 2018-02-27 | AE15710 | ND |
| 2018-02-27 | AE15711 | ND |
| 2018-02-27 | AE15712 | ND |
| 2018-02-28 | AE16003 | ND |
| 2018-02-28 | AE16004 | ND |
| 2018-02-28 | AE16007 | ND |
| 2018-02-28 | AE16009 | ND |
| 2018-02-28 | AE16010 | ND |
| 2018-02-28 | AE16011 | ND |
| 2018-02-28 | AE16013 | ND |
| 2018-02-28 | AE16015 | ND |
| 2018-02-28 | AE16016 | ND |
| 2018-02-28 | AE16017 | ND |
| 2018-03-01 | AE16420 | ND |
| 2018-05-07 | AE25264 | ND |
| 2018-05-07 | AE25267 | ND |
| 2018-05-07 | AE25275 | ND |
| 2018-05-07 | AE25279 | ND |
| 2018-05-07 | AE25283 | ND |
| 2018-05-07 | AE25285 | ND |
| 2018-05-07 | AE25286 | ND |
| 2018-05-07 | AE25295 | ND |
| 2018-05-07 | AE25297 | ND |
| 2018-05-07 | AE25311 | ND |
| 2018-05-08 | AE25522 | ND |
| 2018-05-08 | AE25524 | ND |
| 2018-05-08 | AE25525 | ND |
| 2018-05-08 | AE25526 | ND |
| 2018-05-08 | AE25556 | ND |
| 2018-05-08 | AE25557 | ND |
| 2018-05-10 | AE25988 | ND |
| 2018-07-02 | AE32301 | ND |
| 2018-08-22 | AE38078 | ND |
| 2018-08-22 | AE38083 | ND |
| 2018-08-22 | AE38084 | ND |
| 2018-08-22 | AE38085 | ND |
| 2018-08-22 | AE38112 | ND |
| 2018-08-23 | AE38351 | ND |
| 2018-08-23 | AE38352 | ND |
| 2018-08-23 | AE38353 | ND |
| 2018-08-23 | AE38354 | ND |
| 2018-08-23 | AE38355 | ND |
| 2018-08-23 | AE38356 | ND |
| 2018-08-23 | AE38365 | ND |
| 2018-08-23 | AE38370 | ND |
| 2018-08-23 | AE38371 | ND |
| 2018-08-23 | AE38374 | ND |
| 2018-08-31 | AE39132 | ND |
| 2018-08-31 | AE39182 | ND |
| 2018-10-24 | AE44457 | ND |
| 2018-10-24 | AE44458 | ND |
| 2018-10-24 | AE44459 | ND |
| 2018-10-24 | AE44460 | ND |
| 2018-10-24 | AE44461 | ND |
| 2018-10-24 | AE44462 | ND |
| 2018-10-24 | AE44463 | ND |
| 2018-10-24 | AE44464 | ND |
| 2018-10-25 | AE44589 | ND |
| 2018-10-25 | AE44590 | ND |
| 2018-10-25 | AE44591 | ND |
| 2018-10-25 | AE44592 | ND |
| 2018-10-25 | AE44593 | ND |
| 2018-10-25 | AE44594 | ND |
| 2018-10-25 | AE44595 | ND |
| 2018-10-25 | AE44596 | ND |
| 2018-11-19 | AE46525 | ND |
| 2018-11-19 | AE46528 | ND |
| 2018-12-13 | AE48873 | ND |
| 2019-01-29 | AE51900 | ND |
| 2019-01-29 | AE51901 | ND |
| 2019-01-29 | AE51902 | ND |
| 2019-01-29 | AE51903 | ND |
| 2019-01-29 | AE51904 | ND |
| 2019-01-29 | AE51905 | ND |
| 2019-01-29 | AE51906 | ND |
| 2019-01-29 | AE51907 | ND |
| 2019-01-30 | AE52150 | ND |
| 2019-01-30 | AE52160 | ND |
| 2019-01-30 | AE52161 | ND |
| 2019-01-30 | AE52169 | ND |
| 2019-01-30 | AE52170 | ND |
| 2019-01-30 | AE52171 | ND |
| 2019-01-30 | AE52175 | ND |
| 2019-01-30 | AE52176 | ND |
| 2019-01-30 | AE52285 | ND |
| 2019-01-31 | AE52510 | ND |
| 2019-03-28 | AE60522 | ND |
| 2019-03-28 | AE60523 | ND |
| 2019-04-23 | AE63323 | ND |
| 2019-04-23 | AE63324 | ND |
| 2019-04-23 | AE63325 | ND |
| 2019-04-23 | AE63326 | ND |
| 2019-04-23 | AE63412 | ND |
| 2019-04-24 | AE63499 | ND |
| 2019-04-24 | AE63500 | ND |
| 2019-04-24 | AE63501 | ND |
| 2019-04-24 | AE63502 | ND |
| 2019-04-24 | AE63503 | ND |
| 2019-04-24 | AE63504 | ND |
| 2019-04-24 | AE63505 | ND |
| 2019-04-24 | AE63507 | ND |
| 2019-04-24 | AE63514 | ND |
| 2019-04-24 | AE63515 | ND |
| 2019-04-24 | AE63516 | ND |
| 2019-04-25 | AE63686 | ND |
| 2019-04-25 | AE63785 | ND |
| 2019-07-24 | AE75727 | ND |
| 2019-07-24 | AE75729 | ND |
| 2019-07-24 | AE75730 | ND |
| 2019-07-24 | AE75733 | ND |
| 2019-07-24 | AE75734 | ND |
| 2019-07-24 | AE75735 | ND |
| 2019-07-24 | AE75770 | ND |
| 2019-07-24 | AE75771 | ND |
| 2019-07-24 | AE75772 | ND |
| 2019-07-24 | AE75773 | ND |
| 2019-07-24 | AE75774 | ND |
| 2019-07-25 | AE75917 | ND |
| 2019-07-25 | AE75918 | ND |
| 2019-07-25 | AE75919 | ND |
| 2019-07-25 | AE75921 | ND |
| 2019-07-25 | AE75927 | ND |
| 2019-10-30 | AE87942 | ND |
| 2019-10-30 | AE87943 | ND |
| 2019-10-30 | AE87944 | ND |
| 2019-10-30 | AE87945 | ND |
| 2019-10-30 | AE87946 | ND |
| 2019-10-30 | AE87947 | ND |
| 2019-10-30 | AE87960 | ND |
| 2019-10-30 | AE87961 | ND |
| 2019-10-31 | AE88153 | ND |
| 2019-10-31 | AE88154 | ND |
| 2019-10-31 | AE88155 | ND |
| 2019-10-31 | AE88156 | ND |
| 2019-10-31 | AE88157 | ND |
| 2019-10-31 | AE88158 | ND |
| 2019-10-31 | AE88159 | ND |
| 2019-10-31 | AE88160 | ND |
| 2019-11-26 | AE90663 | ND |
| 2020-02-06 | AE97296 | ND |
| 2020-02-06 | AE97297 | ND |
| 2020-02-06 | AE97298 | ND |
| 2020-02-06 | AE97299 | ND |
| 2020-02-06 | AE97300 | ND |
| 2020-02-06 | AE97301 | ND |
| 2020-02-06 | AE97302 | ND |
| 2020-02-06 | AE97303 | ND |
| 2020-02-06 | AE97312 | ND |
| 2020-02-06 | AE97313 | ND |
| 2020-02-06 | AE97314 | ND |
| 2020-02-06 | AE97315 | ND |
| 2020-02-06 | AE97316 | ND |
| 2020-02-06 | AE97317 | ND |
| 2020-02-06 | AE97318 | ND |
| 2020-02-06 | AE97319 | ND |
| 2020-02-19 | AE99069 | ND |
| 2020-03-26 | AF04771 | ND |
| 2020-03-26 | AF04776 | ND |
| 2020-03-30 | AF04918 | ND |
| 2020-03-30 | AF04919 | ND |
| 2020-03-30 | AF04920 | ND |
| 2020-03-31 | AF05115 | ND |
| 2020-03-31 | AF05116 | ND |
| 2020-03-31 | AF05117 | ND |
| 2020-05-12 | AF10638 | ND |
| 2020-05-12 | AF10639 | ND |
| 2020-05-12 | AF10640 | ND |
| 2020-05-12 | AF10641 | ND |
| 2020-05-12 | AF10642 | ND |
| 2020-05-12 | AF10643 | ND |
| 2020-05-12 | AF10644 | ND |
| 2020-05-12 | AF10645 | ND |
| 2020-05-13 | AF10920 | ND |
| 2020-05-13 | AF10921 | ND |
| 2020-05-13 | AF10922 | ND |
| 2020-05-13 | AF10923 | ND |
| 2020-05-13 | AF10936 | ND |
| 2020-05-13 | AF10937 | ND |
| 2020-05-13 | AF10938 | ND |
| 2020-05-13 | AF10939 | ND |
| 2020-06-15 | AF15400 | ND |
| 2020-07-15 | AF19460 | ND |
| 2020-07-15 | AF19462 | ND |
| 2020-07-15 | AF19464 | ND |
| 2020-07-15 | AF19468 | ND |
| 2020-07-15 | AF19469 | ND |
| 2020-07-15 | AF19470 | ND |
| 2020-07-15 | AF19471 | ND |
| 2020-07-15 | AF19472 | ND |
| 2020-07-15 | AF19473 | ND |
| 2020-07-15 | AF19474 | ND |
| 2020-07-16 | AF19630 | ND |
| 2020-07-16 | AF19633 | ND |
| 2020-07-16 | AF19634 | ND |
| 2020-07-16 | AF19635 | ND |
| 2020-07-16 | AF19636 | ND |
| 2020-07-21 | AF20424 | ND |
| 2020-07-21 | AF20499 | ND |
| 2020-07-21 | AF20501 | ND |
| 2020-10-05 | AF29539 | ND |
| 2020-10-05 | AF29540 | ND |
| 2020-10-05 | AF29541 | ND |
| 2020-10-06 | AF29769 | ND |
| 2020-10-06 | AF29770 | ND |
| 2020-10-06 | AF29772 | ND |
| 2020-10-06 | AF29781 | ND |
| 2020-10-06 | AF29782 | ND |
| 2020-10-06 | AF29783 | ND |
| 2020-10-06 | AF29785 | ND |
| 2020-10-06 | AF29786 | ND |
| 2020-10-06 | AF29787 | ND |
| 2020-10-06 | AF29788 | ND |
| 2020-10-06 | AF29791 | ND |
| 2020-10-07 | AF29771 | ND |
| 2020-10-07 | AF29784 | ND |
| 2020-10-07 | AF29789 | ND |
| 2020-10-07 | AF29790 | ND |
| 2020-10-07 | AF29792 | ND |
| 2020-10-07 | AF29860 | ND |
| 2020-10-07 | AF29861 | ND |
| 2020-11-11 | AF34196 | ND |
| 2020-11-11 | AF34202 | ND |
| 2020-11-11 | AF34203 | ND |
| 2020-11-12 | AF34436 | ND |
| 2020-11-16 | AF34673 | ND |
| 2020-11-16 | AF34674 | ND |
| 2020-11-16 | AF34675 | ND |
| 2020-11-17 | AF34943 | ND |
| 2020-11-17 | AF34944 | ND |
| 2020-11-17 | AF34945 | ND |
| 2020-11-18 | AF35139 | ND |
| 2020-11-18 | AF35140 | ND |
| 2020-11-18 | AF35141 | ND |
| 2020-11-19 | AF35326 | ND |
| 2020-12-15 | AF37728 | ND |
| 2020-12-18 | AF38179 | ND |
| 2021-01-11 | AF38473 | ND |
| 2021-01-11 | AF38476 | ND |
| 2021-01-11 | AF38477 | ND |
| 2021-01-11 | AF38480 | ND |
| 2021-01-11 | AF38483 | ND |
| 2021-01-11 | AF38484 | ND |
| 2021-01-11 | AF38490 | ND |
| 2021-01-11 | AF38491 | ND |
| 2021-01-12 | AF38777 | ND |
| 2021-01-12 | AF38778 | ND |
| 2021-01-12 | AF38779 | ND |
| 2021-01-12 | AF38780 | ND |
| 2021-01-12 | AF38781 | ND |
| 2021-01-12 | AF38806 | ND |
| 2021-01-12 | AF38807 | ND |
| 2021-01-12 | AF38808 | ND |
| 2021-03-03 | AF45190 | ND |
| 2021-03-03 | AF45191 | ND |
| 2021-04-19 | AF50669 | ND |
| 2021-04-19 | AF50670 | ND |
| 2021-04-19 | AF50673 | ND |
| 2021-04-19 | AF50674 | ND |
| 2021-04-19 | AF50676 | ND |
| 2021-04-19 | AF50678 | ND |
| 2021-04-19 | AF50679 | ND |
| 2021-04-19 | AF50680 | ND |
| 2021-04-19 | AF50682 | ND |
| 2021-04-19 | AF50683 | ND |
| 2021-04-19 | AF50684 | ND |
| 2021-04-20 | AF50671 | ND |
| 2021-04-20 | AF50672 | ND |
| 2021-04-20 | AF50675 | ND |
| 2021-04-20 | AF50677 | ND |
| 2021-04-20 | AF50681 | ND |
| 2021-05-11 | AF53331 | ND |
| 2021-05-11 | AF53332 | ND |
| 2021-05-20 | AF54920 | ND |
| 2021-06-14 | AF57903 | ND |
| 2021-07-13 | AF61761 | ND |
| 2021-07-13 | AF61765 | ND |
| 2021-08-03 | AF64398 | ND |
| 2021-08-03 | AF64415 | ND |
| 2021-08-03 | AF64416 | ND |
| 2021-08-03 | AF64417 | ND |
| 2021-08-03 | AF64418 | ND |
| 2021-08-03 | AF64421 | ND |
| 2021-08-03 | AF64424 | ND |
| 2021-08-03 | AF64425 | ND |
| 2021-08-03 | AF64426 | ND |
| 2021-08-03 | AF64433 | ND |
| 2021-08-03 | AF64434 | ND |
| 2021-08-04 | AF64759 | ND |
| 2021-08-04 | AF64760 | ND |
| 2021-08-04 | AF64761 | ND |
| 2021-08-04 | AF64762 | ND |
| 2021-08-04 | AF64763 | ND |
| 2021-08-04 | AF64872 | ND |
| 2021-09-28 | AF71439 | ND |
| 2021-10-05 | AF72261 | ND |
| 2021-10-05 | AF72262 | ND |
| 2021-10-05 | AF72263 | ND |
| 2021-10-05 | AF72264 | ND |
| 2021-10-05 | AF72265 | ND |
| 2021-10-05 | AF72266 | ND |
| 2021-10-05 | AF72267 | ND |
| 2021-10-05 | AF72268 | ND |
| 2021-10-06 | AF72407 | ND |
| 2021-10-06 | AF72408 | ND |
| 2021-10-06 | AF72409 | ND |
| 2021-10-06 | AF72410 | ND |
| 2021-10-06 | AF72411 | ND |
| 2021-10-06 | AF72412 | ND |
| 2021-10-06 | AF72413 | ND |
| 2021-10-06 | AF72414 | ND |
| 2021-11-29 | AF77395 | ND |
| 2021-11-30 | AF77560 | ND |
| 2021-12-01 | AF77697 | ND |
| 2022-01-11 | AF79662 | ND |
| 2022-01-11 | AF79663 | ND |
| 2022-01-11 | AF79670 | ND |
| 2022-01-11 | AF79671 | ND |
| 2022-01-11 | AF79672 | ND |
| 2022-01-12 | AF79898 | ND |
| 2022-01-12 | AF79899 | ND |
| 2022-01-12 | AF79900 | ND |
| 2022-01-12 | AF79909 | ND |
| 2022-01-12 | AF79910 | ND |
| 2022-01-12 | AF79911 | ND |
| 2022-01-12 | AF79912 | ND |
| 2022-01-12 | AF79913 | ND |
| 2022-01-12 | AF79914 | ND |
| 2022-01-12 | AF79915 | ND |
| 2022-01-12 | AF79916 | ND |
| 2022-04-13 | AF93115 | ND |
| 2022-04-13 | AF93116 | ND |
| 2022-04-13 | AF93117 | ND |
| 2022-04-13 | AF93118 | ND |
| 2022-04-13 | AF93119 | ND |
| 2022-04-13 | AF93120 | ND |
| 2022-04-13 | AF93121 | ND |
| 2022-04-13 | AF93122 | ND |
| 2022-04-13 | AF93123 | ND |
| 2022-04-13 | AF93124 | ND |
| 2022-04-13 | AF93125 | ND |
| 2022-04-13 | AF93216 | ND |
| 2022-04-14 | AF93294 | ND |
| 2022-04-14 | AF93296 | ND |
| 2022-04-14 | AF93297 | ND |
| 2022-04-14 | AF93298 | ND |
| 2022-06-27 | AG02424 | ND |
| 2022-07-05 | AG03171 | ND |
| 2022-07-05 | AG03172 | ND |
| 2022-07-05 | AG03173 | ND |
| 2022-07-05 | AG03174 | ND |
| 2022-07-05 | AG03175 | ND |
| 2022-07-05 | AG03176 | ND |
| 2022-07-05 | AG03177 | ND |
| 2022-07-06 | AG03405 | ND |
| 2022-07-06 | AG03406 | ND |
| 2022-07-06 | AG03407 | ND |
| 2022-07-06 | AG03408 | ND |
| 2022-07-06 | AG03409 | ND |
| 2022-07-06 | AG03410 | ND |
| 2022-07-06 | AG03411 | ND |
| 2022-07-06 | AG03412 | ND |
| 2022-07-06 | AG03413 | ND |
| 2022-10-24 | AG18126 | ND |
| 2022-10-25 | AG18393 | ND |
| 2022-12-07 | AG21176 | ND |
| 2022-12-08 | AG21271 | ND |
| 2022-12-08 | AG21272 | ND |
| 2022-12-08 | AG21273 | ND |
| 2022-12-08 | AG21274 | ND |
| 2022-12-08 | AG21275 | ND |
| 2022-12-08 | AG21276 | ND |
| 2022-12-08 | AG21277 | ND |
| 2022-12-08 | AG21278 | ND |
| 2022-12-08 | AG21279 | ND |
| 2022-12-08 | AG21280 | ND |
| 2022-12-08 | AG21281 | ND |
| 2022-12-09 | AG21450 | ND |
| 2022-12-09 | AG21472 | ND |
| 2022-12-09 | AG21473 | ND |
| 2022-12-09 | AG21474 | ND |
| 2022-12-09 | AG21475 | ND |
| 2023-02-21 | AG29611 | ND |
| 2023-02-21 | AG29651 | ND |
| 2023-02-21 | AG29652 | ND |
| 2023-02-21 | AG29655 | ND |
| 2023-02-21 | AG29656 | ND |
| 2023-02-21 | AG29657 | ND |
| 2023-02-21 | AG29658 | ND |
| 2023-02-21 | AG29659 | ND |
| 2023-02-21 | AG29660 | ND |
| 2023-02-21 | AG29661 | ND |
| 2023-02-21 | AG29662 | ND |
| 2023-02-22 | AG29911 | ND |
| 2023-02-22 | AG29913 | ND |
| 2023-02-22 | AG29914 | ND |
| 2023-02-22 | AG29915 | ND |
| 2023-02-22 | AG29917 | ND |
| 2023-02-22 | AG30035 | ND |
| 2023-04-04 | AG35351 | ND |
| 2023-04-04 | AG35352 | ND |
| 2023-04-04 | AG35353 | ND |
| 2023-04-04 | AG35354 | ND |
| 2023-04-04 | AG35355 | ND |
| 2023-04-04 | AG35356 | ND |
| 2023-04-04 | AG35357 | ND |
| 2023-04-04 | AG35358 | ND |
| 2023-04-04 | AG35359 | ND |
| 2023-04-04 | AG35360 | ND |
| 2023-04-04 | AG35361 | ND |
| 2023-04-05 | AG35603 | ND |
| 2023-04-05 | AG35604 | ND |
| 2023-04-05 | AG35605 | ND |
| 2023-04-05 | AG35606 | ND |
| 2023-04-05 | AG35607 | ND |
| 2023-06-27 | AG46281 | ND |
| 2023-07-11 | AG47793 | ND |
| 2023-07-11 | AG47806 | ND |
| 2023-07-11 | AG47807 | ND |
| 2023-07-11 | AG47809 | ND |
| 2023-07-11 | AG47810 | ND |
| 2023-07-11 | AG47811 | ND |
| 2023-07-11 | AG47812 | ND |
| 2023-07-11 | AG47843 | ND |
| 2023-07-11 | AG47845 | ND |
| 2023-07-11 | AG47947 | ND |
| 2023-07-12 | AG48117 | ND |
| 2023-07-12 | AG48118 | ND |
| 2023-07-12 | AG48119 | ND |
| 2023-07-12 | AG48120 | ND |
| 2023-07-12 | AG48121 | ND |
| 2023-07-12 | AG48276 | ND |
| 2023-07-12 | AG48277 | ND |
| 2023-09-08 | AG55530 | ND |
| 2023-09-08 | AG55531 | ND |
| 2023-10-04 | AG58387 | ND |
| 2023-10-04 | AG58388 | ND |
| 2023-10-04 | AG58389 | ND |
| 2023-10-04 | AG58390 | ND |
| 2023-10-04 | AG58391 | ND |
| 2023-10-04 | AG58392 | ND |
| 2023-10-04 | AG58393 | ND |
| 2023-10-04 | AG58394 | ND |
| 2023-10-04 | AG58395 | ND |
| 2023-10-04 | AG58396 | ND |
| 2023-10-04 | AG58397 | ND |
| 2023-10-05 | AG58703 | ND |
| 2023-10-05 | AG58704 | ND |
| 2023-10-05 | AG58710 | ND |
| 2023-10-31 | AG61777 | ND |
| 2023-10-31 | AG61778 | ND |
| 2023-10-31 | AG61779 | ND |
| 2023-10-31 | AG61780 | ND |
| 2023-10-31 | AG61781 | ND |
| 2023-11-01 | AG62038 | ND |
| 2023-11-01 | AG62039 | ND |
| 2023-11-01 | AG62040 | ND |
| 2023-11-01 | AG62041 | ND |
| 2023-11-14 | AG63605 | ND |
| 2023-11-15 | AG63827 | ND |
| 2023-11-15 | AG63828 | ND |
| 2023-11-15 | AG63829 | ND |
| 2023-11-15 | AG63830 | ND |
| 2023-11-15 | AG63832 | ND |
| 2023-11-15 | AG63833 | ND |
| 2023-11-15 | AG63834 | ND |
| 2023-11-15 | AG63835 | ND |
| 2023-11-15 | AG63837 | ND |
| 2023-11-15 | AG63838 | ND |
| 2023-11-16 | AG63981 | ND |
| 2023-11-16 | AG63990 | ND |
| 2023-11-16 | AG63991 | ND |
| 2023-11-16 | AG64047 | ND |
| 2023-12-18 | AG66893 | ND |
| 2023-12-18 | AG66895 | ND |
| 2023-12-19 | AG67059 | ND |
| 2023-12-19 | AG67060 | ND |