1,2,4-Trichlorobenzene
Sativa-L.A. County Water District
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 | 5 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-01-27 | 9588-001-1153 | ND |
2014-04-07 | 9588-005-1145 | ND |
2014-04-07 | 9588-002-1200 | ND |
2014-04-24 | 9588-005-1050 | ND |
2014-04-24 | 9588-002-1110 | ND |
2015-01-05 | 9588-001-0950 | ND |
2015-04-06 | 9588-005-0940 | ND |
2015-09-18 | 9588-002-0850 | ND |
2016-03-22 | 9588-001-1110 | ND |
2016-04-04 | 9588-005-1010 | ND |
2016-07-11 | 9588-002-1020 | ND |
2017-02-07 | 9588-001-1000 | ND |
2017-05-01 | 9588-005-0955 | ND |
2017-07-14 | 9588-002-1010 | ND |
2018-04-12 | 9588-005-1035 | ND |
2018-07-31 | 9588-002-0940 | ND |
2019-04-01 | 9588-005-0858 | ND |
2019-07-01 | 9588-002-0957 | ND |