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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Arroyo Grande,Water Department

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND30ND
2015ND50ND
2016N/A00N/A
2017N/A00N/A
2018ND330ND
2019N/A00N/A

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
2014-12-16A4L0783-04AND
2014-12-16A4L0783-01AND
2014-12-16A4L0783-07AND
2015-03-17A5B1826-01AND
2015-06-16A5F0172-07AND
2015-06-16A5F0172-04AND
2015-06-17A5F0172-01AND
2015-09-22A5H2567-01AND
2018-02-133761-007-0953ND
2018-02-133761-013-1127ND
2018-02-133761-008-1118ND
2018-02-133761-001-0940ND
2018-02-133761-006-0955ND
2018-02-133761-004-0917ND
2018-02-133761-002-1007ND
2018-02-133761-003-0928ND
2018-05-083761-004-0818ND
2018-05-083761-001-0950ND
2018-05-083761-006-0910ND
2018-05-083761-002-0850ND
2018-05-083761-007-0930ND
2018-05-083761-008-0940ND
2018-05-083761-013-0850ND
2018-05-083761-003-1010ND
2018-07-103761-004-0833ND
2018-07-103761-001-0856ND
2018-07-103761-002-0839ND
2018-07-103761-013-1056ND
2018-07-103761-008-1115ND
2018-07-103761-003-0901ND
2018-07-103761-007-0844ND
2018-07-103761-006-0850ND
2018-12-033761-019-1015ND
2018-12-043761-008-1005ND
2018-12-043761-013-1015ND
2018-12-043761-007-0835ND
2018-12-043761-002-0924ND
2018-12-043761-003-0912ND
2018-12-043761-006-0832ND
2018-12-043761-001-0859ND
2018-12-043761-004-0815ND