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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

San Gabriel County WD

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.

MORE ABOUT THIS CONTAMINANT

 

86

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
20150.00800 ppb110.00800 ppb
2016ND40ND
2017N/A00N/A
20180.00255 ppb204ND - 0.0140 ppb
20190.00260 ppb4810ND - 0.0150 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-01-099588-009-0920ND
2014-03-244C24025-05AND
2014-03-244C24025-01AND
2014-03-244C24025-03AND
2014-03-244C24025-09AND
2014-03-244C24025-07AND
2014-04-089588-009-0915ND
2014-07-149588-009-0900ND
2014-09-254I25045-03AND
2014-09-254I25045-01AND
2014-09-254I25045-09AND
2014-09-254I25045-07AND
2014-10-089588-009-0900ND
2015-01-149588-009-09150.00800 ppb
2016-07-189588-010-0935ND
2016-07-189588-011-0950ND
2016-07-189588-007-1015ND
2016-09-159588-020-0910ND
2018-01-119588-020-0925ND
2018-01-119588-011-0850ND
2018-01-119588-010-0840ND
2018-01-119588-007-0910ND
2018-01-119588-009-08300.0120 ppb
2018-04-069588-010-0955ND
2018-04-069588-007-0930ND
2018-04-069588-020-1005ND
2018-04-069588-011-0940ND
2018-06-119588-009-09050.0130 ppb
2018-07-189588-007-0930ND
2018-07-189588-010-1045ND
2018-07-189588-009-11000.0120 ppb
2018-07-189588-011-1030ND
2018-07-189588-020-1010ND
2018-10-169588-020-0925ND
2018-10-169588-007-0945ND
2018-10-169588-011-1000ND
2018-10-169588-009-09150.0140 ppb
2018-10-169588-010-1025ND
2019-01-023761-010-1545ND
2019-01-023761-009-15550.0140 ppb
2019-01-099588-009-09050.0150 ppb
2019-01-163761-024-0950ND
2019-01-233761-024-0920ND
2019-01-303761-024-1100ND
2019-02-053761-024-0950ND
2019-02-053761-010-0930ND
2019-02-053761-009-09400.0130 ppb
2019-02-133761-024-1015ND
2019-02-203761-024-1015ND
2019-02-273761-024-1045ND
2019-03-043761-009-10350.0120 ppb
2019-03-043761-010-1045ND
2019-03-043761-024-1025ND
2019-03-113761-024-1105ND
2019-03-203761-024-1030ND
2019-03-273761-024-1015ND
2019-04-033761-024-1115ND
2019-04-033761-010-1100ND
2019-04-033761-009-11300.0110 ppb
2019-04-103761-024-0940ND
2019-04-109588-009-09450.0110 ppb
2019-04-173761-024-1040ND
2019-04-243761-024-1130ND
2019-04-293761-024-1115ND
2019-05-093761-024-1100ND
2019-05-093761-010-1125ND
2019-05-093761-009-11150.0110 ppb
2019-05-153761-024-1050ND
2019-05-223761-024-1205ND
2019-05-303761-024-1030ND
2019-06-043761-010-0920ND
2019-06-043761-024-0900ND
2019-06-043761-009-09100.0110 ppb
2019-06-123761-024-1000ND
2019-06-203761-024-1000ND
2019-06-263761-024-1100ND
2019-07-023761-024-0930ND
2019-07-023761-010-0950ND
2019-07-023761-009-09400.0130 ppb
2019-07-103761-024-1100ND
2019-07-129588-009-10450.0140 ppb
2019-07-153761-024-0805ND
2019-07-263761-024-0840ND
2019-07-313761-024-1100ND
2019-12-049588-011-0840ND
2019-12-049588-007-0840ND