1,2,4-Trichlorobenzene
Rockford
1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2014 | ND | 21 | 0 | ND |
| 2015 | ND | 14 | 0 | ND |
| 2016 | ND | 6 | 0 | ND |
| 2017 | ND | 24 | 0 | ND |
| 2018 | ND | 26 | 0 | ND |
| 2019 | ND | 9 | 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 |
|---|---|---|
| 2014-01-21 | 4012700-06 | ND |
| 2014-01-21 | 4012700-05 | ND |
| 2014-01-22 | 4012700-02 | ND |
| 2014-01-27 | 4013503-02 | ND |
| 2014-01-31 | 4020631-01 | ND |
| 2014-01-31 | 4020631-02 | ND |
| 2014-01-31 | 4020631-03 | ND |
| 2014-02-18 | 4022291-01 | ND |
| 2014-02-18 | 4022294-01 | ND |
| 2014-02-25 | 4023202-01 | ND |
| 2014-04-03 | 4040726-01 | ND |
| 2014-04-03 | 4040814-01 | ND |
| 2014-04-16 | 4042720-05 | ND |
| 2014-04-16 | 4042720-03 | ND |
| 2014-04-16 | 4042720-02 | ND |
| 2014-04-16 | 4042720-04 | ND |
| 2014-04-16 | 4042720-01 | ND |
| 2014-10-17 | 4103510-02 | ND |
| 2014-10-17 | 4103510-03 | ND |
| 2014-10-28 | 4104356-01 | ND |
| 2014-12-05 | 4121752-01 | ND |
| 2015-02-06 | 5021724-01 | ND |
| 2015-04-08 | 5041268-01 | ND |
| 2015-04-15 | 5042507-02 | ND |
| 2015-04-22 | 5043417-01 | ND |
| 2015-05-12 | 5051947-04 | ND |
| 2015-05-12 | 5051947-02 | ND |
| 2015-05-12 | 5051947-01 | ND |
| 2015-05-20 | 5053045-02 | ND |
| 2015-06-17 | 5062896-01 | ND |
| 2015-06-23 | 5063877-01 | ND |
| 2015-10-27 | 5104115-02 | ND |
| 2015-11-04 | 5110645-06 | ND |
| 2015-11-04 | 5110645-05 | ND |
| 2015-11-18 | 5112827-01 | ND |
| 2016-04-13 | 6042243-01 | ND |
| 2016-04-26 | 6044110-02 | ND |
| 2016-08-10 | 6082098-01 | ND |
| 2016-08-17 | 6083403-01 | ND |
| 2016-10-12 | 6102040-01 | ND |
| 2016-11-09 | 6111726-03 | ND |
| 2017-01-06 | 7011622-02 | ND |
| 2017-01-06 | 7011622-01 | ND |
| 2017-01-13 | 7012600-02 | ND |
| 2017-01-13 | 7012603-03 | ND |
| 2017-01-13 | 7012603-01 | ND |
| 2017-01-20 | 7013468-02 | ND |
| 2017-01-20 | 7013468-01 | ND |
| 2017-01-20 | 7013468-04 | ND |
| 2017-01-20 | 7013468-03 | ND |
| 2017-01-27 | 7020195-01 | ND |
| 2017-02-03 | 7021369-02 | ND |
| 2017-02-10 | 7022427-01 | ND |
| 2017-03-15 | 7032200-01 | ND |
| 2017-05-26 | 7060081-03 | ND |
| 2017-05-26 | 7060081-01 | ND |
| 2017-06-09 | 7062750-05 | ND |
| 2017-06-27 | 7064968-01 | ND |
| 2017-06-28 | 7065205-01 | ND |
| 2017-09-22 | 7094621-01 | ND |
| 2017-10-20 | 7104443-01 | ND |
| 2017-10-20 | 7104443-02 | ND |
| 2017-10-27 | 7110218-01 | ND |
| 2017-12-06 | 7121184-04 | ND |
| 2017-12-06 | 7121184-01 | ND |
| 2018-01-29 | 18A0571-02_02 | ND |
| 2018-01-29 | 18A0571-01_02 | ND |
| 2018-02-02 | 8021162-01 | ND |
| 2018-03-16 | 8033673-02 | ND |
| 2018-03-16 | 8033673-01 | ND |
| 2018-04-06 | 8042289-03 | ND |
| 2018-04-06 | 8042289-02 | ND |
| 2018-04-06 | 8042289-01 | ND |
| 2018-05-04 | 8051899-02 | ND |
| 2018-05-04 | 8051899-01 | ND |
| 2018-05-23 | 8054284-03 | ND |
| 2018-05-23 | 8054284-02 | ND |
| 2018-05-23 | 8054284-01 | ND |
| 2018-05-25 | 8055076-02 | ND |
| 2018-05-25 | 8055076-01 | ND |
| 2018-05-30 | 18E1190-01_02 | ND |
| 2018-06-12 | 8062624-01 | ND |
| 2018-06-15 | 8063760-01 | ND |
| 2018-09-12 | 8092119-03 | ND |
| 2018-09-12 | 8092119-02 | ND |
| 2018-09-12 | 8092119-01 | ND |
| 2018-10-31 | 18K0014-01_02 | ND |
| 2018-11-02 | 8111425-02 | ND |
| 2018-12-05 | 18L0178-01_02 | ND |
| 2018-12-18 | 8123625-03 | ND |
| 2018-12-18 | 8123625-01 | ND |
| 2019-03-13 | 9032319-02 | ND |
| 2019-03-13 | 9032319-01 | ND |
| 2019-04-26 | 9050293-03 | ND |
| 2019-04-26 | 9050293-01 | ND |
| 2019-04-26 | 9050293-02 | ND |
| 2019-05-20 | 9054685-02 | ND |
| 2019-05-20 | 9054685-01 | ND |
| 2019-11-08 | 9112291-02 | ND |
| 2019-11-08 | 9112291-01 | ND |