1,2,4-Trichlorobenzene
City of Glendale
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 13 | 0 | ND |
| 2015 | ND | 11 | 0 | ND |
| 2016 | ND | 12 | 0 | ND |
| 2017 | ND | 11 | 0 | ND |
| 2018 | ND | 11 | 0 | ND |
| 2019 | ND | 10 | 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 | 1401021130W22FV | ND |
| 2014-01-06 | 1401061121OSFV | ND |
| 2014-01-06 | 1401060900PPFV | ND |
| 2014-01-16 | 1401161225A22FV | ND |
| 2014-01-16 | 1401161005CB1FV | ND |
| 2014-05-15 | 1405150920W30FV | ND |
| 2014-05-15 | 1405151035W43 | ND |
| 2014-05-15 | 1405151035W43FV | ND |
| 2014-05-21 | 1405211250CZ1FV | ND |
| 2014-05-21 | 1405211210W16FV | ND |
| 2014-05-21 | 1405211140W27FV | ND |
| 2014-05-27 | 1405271200CHBFV | ND |
| 2014-07-18 | 1407181055W18FV | ND |
| 2015-04-06 | 1504061325PPFV | ND |
| 2015-04-06 | 1504061200CZ1FV | ND |
| 2015-04-06 | 1504061040OSFV | ND |
| 2015-04-21 | 1504211030CB1FV | ND |
| 2015-04-27 | 1504271140W43FV | ND |
| 2015-04-29 | 1504291100W30FV | ND |
| 2015-04-29 | 1504291015W22FV | ND |
| 2015-05-07 | 1505070930A22FV | ND |
| 2015-05-21 | 1505211315W27FV | ND |
| 2015-05-21 | 1505211100W16FV | ND |
| 2015-05-21 | 1505211045CHBFV | ND |
| 2016-04-18 | 1604181055W22FV | ND |
| 2016-04-18 | 1604180950W30FV | ND |
| 2016-04-19 | 1604191030A22FV | ND |
| 2016-04-19 | 1604190950W27FV | ND |
| 2016-04-21 | 1604211048W43FV | ND |
| 2016-04-21 | 1604210935CHBFC | ND |
| 2016-04-25 | 1604251114CZ1FV | ND |
| 2016-04-25 | 16042509530SFV | ND |
| 2016-04-25 | 1604250855PPFV | ND |
| 2016-04-27 | 1604271045W16FV | ND |
| 2016-05-04 | 1605040919W18FV | ND |
| 2016-06-09 | 1606091220CB1FV | ND |
| 2017-04-03 | 1704031235OSFV | ND |
| 2017-04-03 | 1704030940PPFV | ND |
| 2017-04-04 | 1704041050CZ1FV | ND |
| 2017-04-19 | 1704191000CHBFV | ND |
| 2017-04-19 | 1704191057W30FV | ND |
| 2017-04-19 | 1704191208W43FV | ND |
| 2017-04-19 | 1704191300W27FV | ND |
| 2017-04-26 | 1704261220W22FV | ND |
| 2017-04-26 | 1704261130W16FV | ND |
| 2017-04-27 | 1704270940A22FV | ND |
| 2017-05-16 | 1705160940CB1FV | ND |
| 2018-02-28 | 1802281235PPFV | ND |
| 2018-02-28 | 1802281018W27FV | ND |
| 2018-02-28 | 1802280941W30FV | ND |
| 2018-04-02 | 1804021133CZ1FV | ND |
| 2018-04-02 | 1804021046OSFV | ND |
| 2018-04-10 | 1804100946A22FV | ND |
| 2018-04-12 | 1804121302W43FV | ND |
| 2018-04-12 | 1804121158CB1FV | ND |
| 2018-04-12 | 1804121100W16FV | ND |
| 2018-04-12 | 1804120932CHBFV | ND |
| 2018-04-24 | 1804240917W22FV | ND |
| 2019-04-15 | 1904151258PPFV | ND |
| 2019-04-15 | 1904151118CZ1FV | ND |
| 2019-04-15 | 1904150959OSFV | ND |
| 2019-04-18 | 1904181345A22RV | ND |
| 2019-04-18 | 1904181226CB1FV | ND |
| 2019-04-18 | 1904181152W27FV | ND |
| 2019-04-18 | 1904181120W16FV | ND |
| 2019-04-18 | 1904180955CHBFV | ND |
| 2019-04-18 | 1904180915W30FV | ND |
| 2019-05-02 | 1905020914W43FV | ND |