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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of South Pasadena

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

 

122

Samples

0

Samples exceeding legal limit (MCL)

58

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015N/A00N/A
20160.0197 ppb32ND - 0.0400 ppb
2017N/A00N/A
20180.00866 ppb5520ND - 0.0490 ppb
20190.0147 ppb6236ND - 0.0460 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
2014-02-244B24023-01AND
2014-09-304I30018-01AND
2016-08-129588-002-1010ND
2016-08-129588-005-09350.0190 ppb
2016-08-129588-006-09550.0400 ppb
2018-02-129588-005-08550.0210 ppb
2018-02-129588-006-08450.0320 ppb
2018-04-039590-005-0730ND
2018-04-039590-006-0810ND
2018-04-039590-008-0755ND
2018-04-109590-007-0950ND
2018-04-109590-008-0830ND
2018-04-179590-008-1030ND
2018-04-239590-008-0810ND
2018-05-019590-005-0930ND
2018-05-019590-006-0930ND
2018-05-019590-008-0725ND
2018-05-019590-017-0750ND
2018-05-089590-008-0900ND
2018-05-089590-017-0720ND
2018-05-159590-008-1010ND
2018-05-159590-017-0700ND
2018-05-229590-008-1100ND
2018-05-229590-017-0705ND
2018-05-259588-005-0830ND
2018-05-259588-006-0815ND
2018-05-299590-008-0850ND
2018-05-299590-017-0730ND
2018-06-059590-005-0700ND
2018-06-059590-006-0700ND
2018-06-129590-008-09000.00580 ppb
2018-06-199590-008-0845ND
2018-06-259590-008-08200.00640 ppb
2018-07-029590-005-08450.00840 ppb
2018-07-029590-006-09000.0150 ppb
2018-07-029590-008-07400.00690 ppb
2018-07-179590-017-1200ND
2018-08-079590-017-0700ND
2018-08-149590-017-0700ND
2018-08-215867-008-09000.0490 ppb
2018-08-279588-005-09100.0290 ppb
2018-08-279588-006-09000.0320 ppb
2018-08-289590-017-0835ND
2018-09-049590-005-10450.0250 ppb
2018-09-049590-006-10450.0360 ppb
2018-09-049590-008-09450.0240 ppb
2018-09-049590-017-0740ND
2018-09-189590-017-0705ND
2018-09-259590-017-0700ND
2018-10-029590-005-08450.0240 ppb
2018-10-029590-006-09400.0300 ppb
2018-10-029590-009-0810ND
2018-10-029590-017-07150.00500 ppb
2018-10-099590-008-07150.0220 ppb
2018-10-099590-017-0810ND
2018-10-309590-017-0700ND
2018-11-069588-005-0840ND
2018-11-069588-006-08250.0450 ppb
2018-12-049590-006-08300.0320 ppb
2018-12-269590-005-08300.0280 ppb
2019-01-029590-005-08150.0270 ppb
2019-01-029590-006-09200.0400 ppb
2019-02-059590-005-08150.0290 ppb
2019-02-059590-006-11000.0460 ppb
2019-02-199588-005-09000.0250 ppb
2019-02-199588-006-08500.0320 ppb
2019-03-059590-005-09450.0290 ppb
2019-03-059590-006-08300.0330 ppb
2019-04-019590-005-07300.0200 ppb
2019-04-019590-006-09450.0330 ppb
2019-05-079590-005-08000.0260 ppb
2019-05-079590-006-09000.0410 ppb
2019-05-169588-005-09100.0220 ppb
2019-05-169588-006-09150.0370 ppb
2019-06-049590-005-08000.0240 ppb
2019-06-049590-006-09000.0360 ppb
2019-07-019590-005-08300.0210 ppb
2019-07-019590-006-08300.0310 ppb
2019-08-069590-005-08300.0240 ppb
2019-08-069590-006-08300.0360 ppb
2019-08-219588-005-09100.0200 ppb
2019-08-219588-006-09000.0300 ppb
2019-09-039590-005-08000.0220 ppb
2019-09-039590-006-08150.0300 ppb
2019-10-019590-005-09150.0200 ppb
2019-10-019590-006-09150.0250 ppb
2019-10-089590-034-0730ND
2019-10-089590-035-0730ND
2019-10-089590-036-0730ND
2019-10-089590-038-0730ND
2019-10-089590-047-07300.00560 ppb
2019-11-059590-005-10000.0210 ppb
2019-11-059590-006-10150.0240 ppb
2019-11-069588-005-09100.0210 ppb
2019-11-069588-006-09000.0230 ppb
2019-12-039590-005-10000.0220 ppb
2019-12-039590-006-10150.0210 ppb
2019-12-039590-034-0820ND
2019-12-039590-035-0800ND
2019-12-039590-037-08100.00510 ppb
2019-12-039590-038-0815ND
2019-12-039590-040-0805ND
2019-12-099590-034-1020ND
2019-12-099590-035-1000ND
2019-12-099590-037-1010ND
2019-12-099590-038-1015ND
2019-12-099590-040-1005ND
2019-12-179590-034-1105ND
2019-12-179590-035-1045ND
2019-12-179590-038-1100ND
2019-12-179590-040-1050ND
2019-12-179590-041-1055ND
2019-12-239590-034-1000ND
2019-12-239590-035-1005ND
2019-12-239590-038-1020ND
2019-12-239590-040-1010ND
2019-12-239590-041-1015ND
2019-12-309590-034-1045ND
2019-12-309590-035-10250.00740 ppb
2019-12-309590-038-10400.00530 ppb
2019-12-309590-040-1030ND
2019-12-309590-041-1035ND