Know Your Environment. Protect Your Health.

1,2,3-Trichloropropane

Cobles Corner

1,2,3-Trichloropropane is a potent carcinogen that contaminates drinking water in agricultural regions where it was historically used as soil fumigant. Click here to read more about carcinogenic VOCs.

 

24

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20180.0284 ppb550.0180 ppb - 0.0440 ppb
20190.0205 ppb440.0170 ppb - 0.0270 ppb
20200.0408 ppb440.0190 ppb - 0.0500 ppb
20210.0378 ppb440.0230 ppb - 0.0610 ppb
20220.0510 ppb440.0330 ppb - 0.1000 ppb
20230.0703 ppb330.0620 ppb - 0.0800 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.0007 ppb

The EWG Health Guideline of 0.0007 ppb for 1,2,3-trichloropropane 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 cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2018-03-15CA5000033_002_002-2018031509050.0280 ppb
2018-03-27CA5000033_002_002-2018032709050.0180 ppb
2018-06-14CA5000033_002_002-2018061415000.0330 ppb
2018-09-20CA5000033_002_002-2018092015400.0440 ppb
2018-12-03CA5000033_002_002-2018120315100.0190 ppb
2019-03-04CA5000033_002_002-2019030415100.0170 ppb
2019-06-03CA5000033_002_002-2019060314250.0190 ppb
2019-09-09CA5000033_002_002-2019090914350.0270 ppb
2019-12-02CA5000033_002_002-2019120215000.0190 ppb
2020-02-13CA5000033_002_002-2020021315300.0190 ppb
2020-05-04CA5000033_002_002-2020050413300.0490 ppb
2020-08-03CA5000033_002_002-2020080315300.0450 ppb
2020-11-02CA5000033_002_002-2020110214250.0500 ppb
2021-02-11CA5000033_002_002-2021021114550.0250 ppb
2021-05-13CA5000033_002_002-2021051315150.0610 ppb
2021-08-02CA5000033_002_002-2021080215250.0420 ppb
2021-11-22CA5000033_002_002-2021112210060.0230 ppb
2022-02-23CA5000033_002_002-2022022314200.0330 ppb
2022-05-19CA5000033_002_002-2022051913550.0380 ppb
2022-08-22CA5000033_002_002-2022082213150.1000 ppb
2022-11-21CA5000033_002_002-2022112114250.0330 ppb
2023-05-16CA5000033_002_002-2023051614100.0800 ppb
2023-07-27CA5000033_002_002-2023072714540.0690 ppb
2023-10-09CA5000033_002_002-2023100913020.0620 ppb