o-Dichlorobenzene
San Antonio Water System
o-Dichlorobenzene is used as a chemical intermediate for making agricultural herbicides. It is toxic to the liver, kidneys and the nervous system, and causes cancer in animal studies.
231
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 | 29 | 0 | ND |
| 2015 | ND | 28 | 0 | ND |
| 2016 | ND | 42 | 0 | ND |
| 2017 | ND | 52 | 0 | ND |
| 2018 | ND | 41 | 0 | ND |
| 2019 | ND | 39 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 600 ppb
The EWG Health Guideline of 600 ppb for o-dichlorobenzene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 600 ppb
The legal limit for o-dichlorobenzene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2014-01-13 | AC38543 | ND |
| 2014-01-13 | AC38545 | ND |
| 2014-01-13 | AC38557 | ND |
| 2014-01-14 | AC38772 | ND |
| 2014-03-31 | AC48706 | ND |
| 2014-03-31 | AC48704 | ND |
| 2014-03-31 | AC48700 | ND |
| 2014-03-31 | AC48708 | ND |
| 2014-05-13 | AC53983 | ND |
| 2014-05-13 | AC53979 | ND |
| 2014-05-16 | AC54447 | ND |
| 2014-05-16 | AC54437 | ND |
| 2014-06-30 | AC58420 | ND |
| 2014-07-29 | AC61365 | ND |
| 2014-07-29 | AC61367 | ND |
| 2014-07-29 | AC61351 | ND |
| 2014-07-30 | AC61541 | ND |
| 2014-07-31 | AC61762 | ND |
| 2014-09-02 | AC65443 | ND |
| 2014-09-29 | AC68388 | ND |
| 2014-09-29 | AC68392 | ND |
| 2014-09-30 | AC68574 | ND |
| 2014-09-30 | AC68572 | ND |
| 2014-09-30 | AC68570 | ND |
| 2014-09-30 | AC68576 | ND |
| 2014-10-01 | AC68680 | ND |
| 2014-11-25 | AC72982 | ND |
| 2014-12-02 | AC73351 | ND |
| 2014-12-03 | AC73484 | ND |
| 2015-03-05 | AC82896 | ND |
| 2015-04-02 | AC87119 | ND |
| 2015-04-02 | AC87121 | ND |
| 2015-04-02 | AC87123 | ND |
| 2015-04-02 | AC87125 | ND |
| 2015-06-03 | AC94441 | ND |
| 2015-06-04 | AC94629 | ND |
| 2015-07-07 | AC98577 | ND |
| 2015-07-30 | AD01822 | ND |
| 2015-07-30 | AD01796 | ND |
| 2015-07-30 | AD01808 | ND |
| 2015-07-30 | AD01818 | ND |
| 2015-07-30 | AD01784 | ND |
| 2015-07-30 | AD01800 | ND |
| 2015-09-28 | AD08800 | ND |
| 2015-09-28 | AD08796 | ND |
| 2015-09-28 | AD08794 | ND |
| 2015-09-29 | AD09011 | ND |
| 2015-09-29 | AD08981 | ND |
| 2015-09-29 | AD08983 | ND |
| 2015-09-29 | AD08973 | ND |
| 2015-10-28 | AD12024 | ND |
| 2015-10-28 | AD11992 | ND |
| 2015-10-28 | AD12012 | ND |
| 2015-10-28 | AD12022 | ND |
| 2015-11-23 | AD14447 | ND |
| 2015-11-23 | AD14445 | ND |
| 2015-11-23 | AD14449 | ND |
| 2016-01-13 | AD17917 | ND |
| 2016-01-13 | AD17919 | ND |
| 2016-01-14 | AD18237 | ND |
| 2016-04-05 | AD31830 | ND |
| 2016-04-05 | AD31832 | ND |
| 2016-04-05 | AD31834 | ND |
| 2016-04-05 | AD31836 | ND |
| 2016-04-06 | AD32103 | ND |
| 2016-04-06 | AD32105 | ND |
| 2016-04-06 | AD32101 | ND |
| 2016-04-06 | AD32099 | ND |
| 2016-04-07 | AD32294 | ND |
| 2016-04-07 | AD32300 | ND |
| 2016-04-07 | AD32292 | ND |
| 2016-04-07 | AD32302 | ND |
| 2016-04-07 | AD32298 | ND |
| 2016-04-07 | AD32296 | ND |
| 2016-06-01 | AD38979 | ND |
| 2016-06-28 | AD42163 | ND |
| 2016-06-28 | AD42161 | ND |
| 2016-09-01 | AD47698 | ND |
| 2016-09-01 | AD47696 | ND |
| 2016-09-01 | AD47692 | ND |
| 2016-10-06 | AD52690 | ND |
| 2016-10-06 | AD52686 | ND |
| 2016-10-31 | AD55514 | ND |
| 2016-10-31 | AD55512 | ND |
| 2016-10-31 | AD55516 | ND |
| 2016-11-02 | AD56180 | ND |
| 2016-11-02 | AD56178 | ND |
| 2016-11-02 | AD56182 | ND |
| 2016-11-03 | AD56482 | ND |
| 2016-11-03 | AD56476 | ND |
| 2016-11-04 | AD56869 | ND |
| 2016-11-28 | AD59210 | ND |
| 2016-11-28 | AD59204 | ND |
| 2016-11-28 | AD59206 | ND |
| 2016-11-28 | AD59208 | ND |
| 2016-11-28 | AD59196 | ND |
| 2016-11-29 | AD59399 | ND |
| 2016-11-29 | AD59387 | ND |
| 2016-11-29 | AD59389 | ND |
| 2017-01-30 | AD67535 | ND |
| 2017-01-30 | AD67551 | ND |
| 2017-01-30 | AD67537 | ND |
| 2017-02-01 | AD68125 | ND |
| 2017-02-01 | AD68107 | ND |
| 2017-02-02 | AD68417 | ND |
| 2017-03-06 | AD73465 | ND |
| 2017-03-06 | AD73473 | ND |
| 2017-03-06 | AD73483 | ND |
| 2017-03-06 | AD73467 | ND |
| 2017-03-29 | AD77480 | ND |
| 2017-03-29 | AD77474 | ND |
| 2017-03-29 | AD77476 | ND |
| 2017-03-29 | AD77478 | ND |
| 2017-03-29 | AD77482 | ND |
| 2017-03-30 | AD77778 | ND |
| 2017-03-30 | AD77776 | ND |
| 2017-03-30 | AD77774 | ND |
| 2017-04-25 | AD80968 | ND |
| 2017-05-24 | AD85476 | ND |
| 2017-07-06 | AD88490 | ND |
| 2017-07-06 | AD88494 | ND |
| 2017-07-06 | AD88492 | ND |
| 2017-09-11 | AD95433 | ND |
| 2017-09-11 | AD95469 | ND |
| 2017-09-11 | AD95465 | ND |
| 2017-10-17 | AE01129 | ND |
| 2017-10-18 | AE01382 | ND |
| 2017-10-18 | AE01392 | ND |
| 2017-10-18 | AE01384 | ND |
| 2017-12-04 | AE06576 | ND |
| 2017-12-04 | AE06580 | ND |
| 2017-12-04 | AE06582 | ND |
| 2017-12-05 | AE06802 | ND |
| 2017-12-05 | AE06804 | ND |
| 2017-12-05 | AE06806 | ND |
| 2017-12-06 | AE06998 | ND |
| 2017-12-06 | AE06996 | ND |
| 2017-12-06 | AE06994 | ND |
| 2017-12-06 | AE07000 | ND |
| 2017-12-07 | AE07237 | ND |
| 2017-12-07 | AE07229 | ND |
| 2017-12-07 | AE07235 | ND |
| 2017-12-07 | AE07233 | ND |
| 2017-12-07 | AE07239 | ND |
| 2017-12-07 | AE07231 | ND |
| 2017-12-08 | AE07427 | ND |
| 2017-12-13 | AE07670 | ND |
| 2017-12-13 | AE07678 | ND |
| 2017-12-13 | AE07672 | ND |
| 2017-12-13 | AE07676 | ND |
| 2017-12-20 | AE07870 | ND |
| 2018-03-01 | AE16352 | ND |
| 2018-03-01 | AE16364 | ND |
| 2018-03-01 | AE16374 | ND |
| 2018-03-15 | AE18622 | ND |
| 2018-03-26 | AE19940 | ND |
| 2018-03-26 | AE19962 | ND |
| 2018-05-09 | AE25777 | ND |
| 2018-05-10 | AE25963 | ND |
| 2018-06-06 | AE28871 | ND |
| 2018-06-06 | AE28877 | ND |
| 2018-07-02 | AE32261 | ND |
| 2018-07-19 | AE33971 | ND |
| 2018-07-23 | AE34141 | ND |
| 2018-09-26 | AE41772 | ND |
| 2018-09-26 | AE41722 | ND |
| 2018-09-26 | AE41718 | ND |
| 2018-09-26 | AE41764 | ND |
| 2018-09-26 | AE41770 | ND |
| 2018-09-27 | AE41964 | ND |
| 2018-09-27 | AE42030 | ND |
| 2018-09-27 | AE42034 | ND |
| 2018-09-27 | AE42032 | ND |
| 2018-09-27 | AE41978 | ND |
| 2018-09-27 | AE42036 | ND |
| 2018-09-27 | AE41976 | ND |
| 2018-10-05 | AE42822 | ND |
| 2018-11-19 | AE46510 | ND |
| 2018-11-19 | AE46514 | ND |
| 2018-11-19 | AE46508 | ND |
| 2018-11-19 | AE46516 | ND |
| 2018-11-19 | AE46512 | ND |
| 2018-11-19 | AE46506 | ND |
| 2018-11-20 | AE46675 | ND |
| 2018-12-07 | AE48412 | ND |
| 2018-12-07 | AE48420 | ND |
| 2018-12-07 | AE48418 | ND |
| 2018-12-07 | AE48410 | ND |
| 2018-12-07 | AE48416 | ND |
| 2018-12-13 | AE48854 | ND |
| 2018-12-13 | AE48852 | ND |
| 2018-12-13 | AE48836 | ND |
| 2019-01-29 | AE51987 | ND |
| 2019-01-29 | AE51989 | ND |
| 2019-01-30 | AE52202 | ND |
| 2019-01-31 | AE52473 | ND |
| 2019-01-31 | AE52469 | ND |
| 2019-01-31 | AE52471 | ND |
| 2019-03-07 | AE57602 | ND |
| 2019-03-07 | AE57628 | ND |
| 2019-03-28 | AE60470 | ND |
| 2019-03-28 | AE60468 | ND |
| 2019-03-28 | AE60466 | ND |
| 2019-04-23 | AE63404 | ND |
| 2019-04-23 | AE63402 | ND |
| 2019-04-23 | AE63398 | ND |
| 2019-04-25 | AE63728 | ND |
| 2019-05-17 | AE67160 | ND |
| 2019-05-21 | AE67410 | ND |
| 2019-05-21 | AE67412 | ND |
| 2019-05-21 | AE67414 | ND |
| 2019-05-21 | AE67424 | ND |
| 2019-08-13 | AE78341 | ND |
| 2019-08-13 | AE78339 | ND |
| 2019-10-31 | AE88168 | ND |
| 2019-11-13 | AE89135 | ND |
| 2019-11-13 | AE89133 | ND |
| 2019-11-14 | AE89282 | ND |
| 2019-11-14 | AE89286 | ND |
| 2019-11-25 | AE90444 | ND |
| 2019-11-25 | AE90442 | ND |
| 2019-11-25 | AE90440 | ND |
| 2019-11-25 | AE90446 | ND |
| 2019-11-26 | AE90617 | ND |
| 2019-11-26 | AE90619 | ND |
| 2019-12-10 | AE91927 | ND |
| 2019-12-10 | AE91921 | ND |
| 2019-12-10 | AE91925 | ND |
| 2019-12-10 | AE91923 | ND |
| 2019-12-11 | AE92160 | ND |
| 2019-12-11 | AE92162 | ND |