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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

City of Atwater

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

 

207

Samples

0

Samples exceeding legal limit (MCL)

150

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.0786 ppb1815ND - 0.180 ppb
20140.0298 ppb126ND - 0.110 ppb
2015N/A00N/A
20160.0356 ppb1612ND - 0.120 ppb
20170.0434 ppb2820ND - 0.160 ppb
20180.0383 ppb8963ND - 0.160 ppb
20190.0389 ppb4434ND - 0.130 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
2013-02-26A3B1738-04A0.0480 ppb
2013-02-26A3B1738-01AND
2013-02-26A3B1738-07A0.0440 ppb
2013-03-07A3C0077-07A0.130 ppb
2013-03-07A3C0077-10A0.120 ppb
2013-03-07A3C0077-04A0.0420 ppb
2013-03-07A3C0077-01A0.140 ppb
2013-03-07A3C0077-16A0.150 ppb
2013-03-07A3C0077-13A0.0520 ppb
2013-08-20A3H1421-16AND
2013-08-20A3H1421-13A0.160 ppb
2013-08-20A3H1421-19A0.0600 ppb
2013-08-20A3H1421-07A0.0930 ppb
2013-08-20A3H1421-01AND
2013-08-20A3H1421-10A0.0400 ppb
2013-08-20A3H1421-22A0.120 ppb
2013-08-20A3H1421-25A0.180 ppb
2013-09-26A3I1633-01A0.0350 ppb
2014-03-125806-900-0735ND
2014-03-125806-901-0815ND
2014-03-125806-902-0935ND
2014-03-125806-903-0910ND
2014-05-215806-013-09530.0350 ppb
2014-05-215806-014-09450.0730 ppb
2014-05-215806-015-11150.0290 ppb
2014-05-215806-016-1010ND
2014-05-215806-017-09000.110 ppb
2014-05-215806-018-11000.0190 ppb
2014-05-215806-019-10000.0910 ppb
2014-05-215806-021-1025ND
2016-10-195810-013-08550.0310 ppb
2016-10-195810-014-09050.0540 ppb
2016-10-195810-015-06200.0330 ppb
2016-10-195810-016-0825ND
2016-10-195810-017-08450.0940 ppb
2016-10-195810-018-08100.0190 ppb
2016-10-195810-019-08350.120 ppb
2016-10-195810-021-1445ND
2016-10-195810-026-06220.0260 ppb
2016-12-205810-013-09450.0250 ppb
2016-12-205810-014-10000.0120 ppb
2016-12-205810-015-09000.0330 ppb
2016-12-205810-016-0915ND
2016-12-205810-017-09300.0980 ppb
2016-12-205810-018-10150.0250 ppb
2016-12-205810-021-0830ND
2017-03-225810-013-09000.0260 ppb
2017-03-225810-015-08000.0310 ppb
2017-03-225810-016-0630ND
2017-03-225810-017-09300.0750 ppb
2017-03-225810-018-07300.0190 ppb
2017-03-225810-019-08300.00500 ppb
2017-03-225810-021-0700ND
2017-05-165810-013-07000.160 ppb
2017-05-165810-015-09300.0250 ppb
2017-05-165810-016-0900ND
2017-05-165810-017-07300.120 ppb
2017-05-165810-018-08000.0160 ppb
2017-05-165810-019-06300.1000 ppb
2017-05-165810-021-0830ND
2017-08-015810-013-06300.0520 ppb
2017-08-015810-015-07000.0270 ppb
2017-08-015810-016-0730ND
2017-08-015810-017-08000.110 ppb
2017-08-015810-018-08300.0160 ppb
2017-08-015810-019-09000.110 ppb
2017-08-015810-021-0930ND
2017-10-035810-014-06450.0650 ppb
2017-10-035810-015-07150.0310 ppb
2017-10-035810-016-0800ND
2017-10-035810-017-06300.110 ppb
2017-10-035810-018-07300.0190 ppb
2017-10-035810-019-07450.0970 ppb
2017-10-035810-021-0700ND
2018-02-275810-014-06300.0600 ppb
2018-02-275810-015-08150.0280 ppb
2018-02-275810-016-07000.130 ppb
2018-02-275810-017-06150.140 ppb
2018-02-275810-018-07150.0180 ppb
2018-02-275810-019-07300.00700 ppb
2018-02-275810-021-0645ND
2018-03-145806-014-06300.0640 ppb
2018-03-145806-015-07000.00510 ppb
2018-03-145806-016-07450.130 ppb
2018-03-145806-017-08150.140 ppb
2018-03-145806-018-08450.0220 ppb
2018-03-145806-019-09150.0170 ppb
2018-03-145806-021-0945ND
2018-03-145806-026-07150.110 ppb
2018-03-275806-013-07300.0220 ppb
2018-03-285806-026-0700ND
2018-04-035806-013-08300.0200 ppb
2018-04-035806-014-07300.0340 ppb
2018-04-035806-015-07100.0160 ppb
2018-04-035806-016-09000.0870 ppb
2018-04-035806-017-06550.0890 ppb
2018-04-035806-018-0915ND
2018-04-035806-019-09350.00530 ppb
2018-04-035806-026-0711ND
2018-04-185806-013-11300.0290 ppb
2018-04-185806-018-10150.0150 ppb
2018-04-245806-013-07500.0230 ppb
2018-04-245806-015-0705ND
2018-04-245806-018-0620ND
2018-04-245806-019-0830ND
2018-04-245806-026-0708ND
2018-05-155806-013-10150.0250 ppb
2018-05-155806-014-09450.0520 ppb
2018-05-155810-015-08400.0310 ppb
2018-05-155810-015-0843ND
2018-05-155810-015-0847ND
2018-05-155810-015-0853ND
2018-05-155810-015-0900ND
2018-05-155806-016-10350.0660 ppb
2018-05-155806-017-08250.120 ppb
2018-05-155806-018-08100.0140 ppb
2018-05-155806-019-07500.120 ppb
2018-05-155806-021-0730ND
2018-05-155810-026-0903ND
2018-06-125806-013-08200.0360 ppb
2018-06-125810-015-07250.0320 ppb
2018-06-125806-018-07150.0180 ppb
2018-06-125806-019-07000.160 ppb
2018-06-125810-026-0730ND
2018-07-115810-015-06300.0320 ppb
2018-07-115806-018-07200.0150 ppb
2018-07-115806-019-07300.140 ppb
2018-07-115810-026-0635ND
2018-08-145810-015-08250.0250 ppb
2018-08-145810-026-0830ND
2018-09-135806-013-10150.0270 ppb
2018-09-135806-014-07300.0730 ppb
2018-09-135810-015-08250.0290 ppb
2018-09-135806-016-08000.00500 ppb
2018-09-135806-017-07150.120 ppb
2018-09-135806-018-07450.0160 ppb
2018-09-135806-019-08100.120 ppb
2018-09-135810-026-0830ND
2018-10-165806-013-10150.0190 ppb
2018-10-165806-014-07300.0450 ppb
2018-10-165810-015-08250.0300 ppb
2018-10-165806-016-0800ND
2018-10-165806-017-07150.0950 ppb
2018-10-165806-018-07450.0130 ppb
2018-10-165806-019-08100.0910 ppb
2018-10-165806-021-1000ND
2018-10-165810-026-0830ND
2018-11-145806-013-10150.0240 ppb
2018-11-145806-014-07300.0510 ppb
2018-11-145810-015-08250.0290 ppb
2018-11-145806-016-0800ND
2018-11-145806-017-07150.0960 ppb
2018-11-145806-018-07450.0470 ppb
2018-11-145806-019-08100.0890 ppb
2018-11-145806-021-1000ND
2018-11-145810-026-0830ND
2018-12-055806-013-10150.0190 ppb
2018-12-055806-014-07300.0430 ppb
2018-12-055810-015-08250.0260 ppb
2018-12-055806-016-07450.0900 ppb
2018-12-055806-017-08100.0840 ppb
2018-12-055806-018-10000.0270 ppb
2018-12-055810-026-0830ND
2019-01-155806-013-10150.0270 ppb
2019-01-155806-014-07300.0590 ppb
2019-01-155810-015-08250.0260 ppb
2019-01-155806-016-07450.120 ppb
2019-01-155806-017-08100.120 ppb
2019-01-155806-018-10000.0310 ppb
2019-01-155806-019-10300.00590 ppb
2019-01-155810-026-0830ND
2019-03-215810-026-07000.00500 ppb
2019-04-035806-013-10150.0280 ppb
2019-04-035806-014-07300.0670 ppb
2019-04-035810-015-08250.0200 ppb
2019-04-035806-016-07450.120 ppb
2019-04-035806-017-08100.130 ppb
2019-04-035806-018-10000.0300 ppb
2019-04-035806-019-10300.00840 ppb
2019-04-035810-026-08300.00600 ppb
2019-06-255810-015-07000.0250 ppb
2019-06-255810-026-0705ND
2019-07-095806-013-13300.0250 ppb
2019-07-095806-014-12550.0570 ppb
2019-07-095810-015-09570.0240 ppb
2019-07-095806-016-1122ND
2019-07-095806-017-11450.120 ppb
2019-07-095806-018-10300.0120 ppb
2019-07-095806-019-11300.120 ppb
2019-07-095806-021-1045ND
2019-07-095810-026-0945ND
2019-08-075810-015-09150.0250 ppb
2019-08-075810-026-0927ND
2019-09-045810-015-10000.0260 ppb
2019-09-045810-026-1005ND
2019-10-035806-013-11000.0320 ppb
2019-10-035806-014-10400.0970 ppb
2019-10-035806-015-09250.0250 ppb
2019-10-035806-016-08550.00540 ppb
2019-10-035806-017-08200.120 ppb
2019-10-035806-018-08450.0170 ppb
2019-10-035806-019-08350.130 ppb
2019-10-035806-026-0930ND
2019-11-055806-015-09000.0220 ppb
2019-11-055806-026-0905ND
2019-12-105806-015-07300.0280 ppb
2019-12-105806-026-0735ND