1,2,4-Trichlorobenzene
Pomona Water Department
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 22 | 0 | ND |
2015 | ND | 20 | 0 | ND |
2016 | ND | 14 | 0 | ND |
2017 | ND | 18 | 0 | ND |
2018 | ND | 17 | 0 | ND |
2019 | ND | 20 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 5 ppb
The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-01-02 | 9590-031-1129 | ND |
2014-01-02 | 9590-042-1105 | ND |
2014-01-06 | 9590-033-1012 | ND |
2014-01-06 | 9590-038-1046 | ND |
2014-01-06 | 9590-069-1037 | ND |
2014-01-08 | 9590-010-0912 | ND |
2014-01-16 | 9590-025-0838 | ND |
2014-01-16 | 9590-040-0902 | ND |
2014-02-19 | 9590-051-1311 | ND |
2014-03-18 | 9590-013-0955 | ND |
2014-03-26 | 9590-036-0957 | ND |
2014-04-09 | 9590-071-0935 | ND |
2014-06-10 | 9590-028-0740 | ND |
2014-07-02 | 9590-032-0813 | ND |
2014-07-07 | 9590-033-0847 | ND |
2014-07-07 | 9590-038-0945 | ND |
2014-07-07 | 9590-042-1135 | ND |
2014-07-16 | 9590-052-0856 | ND |
2014-08-28 | 9590-027-0930 | ND |
2014-10-06 | 9590-071-0918 | ND |
2014-11-12 | 9590-051-1005 | ND |
2014-12-09 | 9590-035-0943 | ND |
2015-01-05 | 9590-033-1052 | ND |
2015-01-05 | 9590-038-0946 | ND |
2015-01-05 | 9590-042-1030 | ND |
2015-01-05 | 9590-069-0943 | ND |
2015-01-13 | 9590-010-0834 | ND |
2015-01-13 | 9590-025-0930 | ND |
2015-01-13 | 9590-040-0930 | ND |
2015-02-26 | 9590-036-0922 | ND |
2015-03-23 | 9590-031-1000 | ND |
2015-04-06 | 9590-071-1131 | ND |
2015-04-14 | 9590-013-0935 | ND |
2015-06-10 | 9590-028-0844 | ND |
2015-07-01 | 9590-052-1029 | ND |
2015-07-06 | 9590-033-0910 | ND |
2015-07-06 | 9590-038-0857 | ND |
2015-07-06 | 9590-042-0959 | ND |
2015-07-08 | 9590-032-0815 | ND |
2015-09-29 | 9590-027-1145 | ND |
2015-10-05 | 9590-071-1040 | ND |
2015-10-20 | 9590-035-1021 | ND |
2016-01-04 | 9590-042-1250 | ND |
2016-01-06 | 9590-025-0920 | ND |
2016-01-06 | 9590-040-0830 | ND |
2016-01-12 | 9590-031-0824 | ND |
2016-01-12 | 9590-036-0850 | ND |
2016-01-13 | 9590-010-1000 | ND |
2016-04-04 | 9590-071-1009 | ND |
2016-06-02 | 9590-028-1115 | ND |
2016-07-05 | 9590-038-0954 | ND |
2016-07-05 | 9590-052-1111 | ND |
2016-07-14 | 9590-033-1000 | ND |
2016-07-14 | 9590-042-0845 | ND |
2016-07-20 | 9590-027-0945 | ND |
2016-10-12 | 9590-071-0942 | ND |
2017-01-03 | 9590-031-1213 | ND |
2017-01-03 | 9590-033-0933 | ND |
2017-01-03 | 9590-038-0835 | ND |
2017-01-10 | 9590-069-1103 | ND |
2017-01-17 | 9590-010-1205 | ND |
2017-01-18 | 9590-025-1218 | ND |
2017-01-18 | 9590-040-1133 | ND |
2017-01-25 | 9590-051-0910 | ND |
2017-03-09 | 9590-042-1005 | ND |
2017-04-06 | 9590-071-1145 | ND |
2017-05-17 | 9590-036-1045 | ND |
2017-07-11 | 9590-028-0910 | ND |
2017-07-11 | 9590-038-1040 | ND |
2017-07-13 | 9590-033-0930 | ND |
2017-07-13 | 9590-042-1150 | ND |
2017-07-24 | 9590-027-1415 | ND |
2017-07-25 | 9590-052-1445 | ND |
2017-10-25 | 9590-032-1115 | ND |
2018-01-03 | 9590-033-1405 | ND |
2018-01-03 | 9590-038-1006 | ND |
2018-01-18 | 9590-042-1313 | ND |
2018-01-22 | 9590-010-1207 | ND |
2018-01-22 | 9590-025-1257 | ND |
2018-01-22 | 9590-040-1325 | ND |
2018-01-23 | 9590-069-1404 | ND |
2018-04-16 | 9590-071-0956 | ND |
2018-05-23 | 9590-028-1006 | ND |
2018-06-13 | 9590-063-0955 | ND |
2018-07-11 | 9590-033-1309 | ND |
2018-07-16 | 9590-038-1333 | ND |
2018-07-17 | 9590-042-1055 | ND |
2018-07-18 | 9590-027-1408 | ND |
2018-07-19 | 9590-031-0951 | ND |
2018-10-23 | 9590-071-0935 | ND |
2018-12-06 | 9590-063-0820 | ND |
2019-01-03 | 9590-010-0939 | ND |
2019-01-09 | 9590-033-1045 | ND |
2019-01-09 | 9590-069-1121 | ND |
2019-01-23 | 9590-010-1045 | ND |
2019-01-23 | 9590-038-0843 | ND |
2019-01-24 | 9590-025-1116 | ND |
2019-01-24 | 9590-040-1155 | ND |
2019-01-29 | 9590-042-1256 | ND |
2019-01-30 | 9590-032-0915 | ND |
2019-04-04 | 9590-071-0901 | ND |
2019-04-17 | 9590-035-1010 | ND |
2019-04-17 | 9590-036-1005 | ND |
2019-04-17 | 9590-051-1110 | ND |
2019-04-17 | 9590-063-1354 | ND |
2019-07-02 | 9590-042-1220 | ND |
2019-07-18 | 9590-027-1156 | ND |
2019-07-18 | 9590-031-1035 | ND |
2019-07-18 | 9590-052-1330 | ND |
2019-10-03 | 9590-063-1340 | ND |
2019-10-10 | 9590-071-1316 | ND |