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EWG's Tap Water Database — 2021 UPDATE

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1,2,3-Trichloropropane

Lahaina

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

 

613

Samples

0

Samples exceeding legal limit (MCL)

268

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013ND40ND
20140.128 ppb11978ND - 0.480 ppb
2015N/A00N/A
20160.143 ppb12057ND - 0.570 ppb
20170.103 ppb13029ND - 0.650 ppb
20180.140 ppb12155ND - 0.570 ppb
20190.142 ppb11949ND - 0.610 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
2013-09-17201309200164AMND
2013-09-17201309200085AMND
2013-12-16201312180610AMND
2013-12-16201312180612AMND
2014-01-242014012906100.410 ppb
2014-01-242014012906110.160 ppb
2014-01-242014012906120.0860 ppb
2014-01-24201401290613ND
2014-01-24201401290614ND
2014-02-212014022604350.400 ppb
2014-02-212014022604360.120 ppb
2014-02-212014022604370.0570 ppb
2014-02-21201402260438ND
2014-02-21201402260439ND
2014-03-17201403190844AMND
2014-03-17201403190848AMND
2014-03-202014032601840.300 ppb
2014-03-20201403260185ND
2014-03-202014032601860.0460 ppb
2014-03-202014032601870.110 ppb
2014-03-202014032601880.210 ppb
2014-04-03201404080617ND
2014-04-03201404080935ND
2014-04-042014040806030.270 ppb
2014-04-04201404080604ND
2014-04-042014040806050.0560 ppb
2014-04-042014040806060.130 ppb
2014-04-042014040806070.200 ppb
2014-04-04201404080992ND
2014-04-11201404150350ND
2014-04-142014041704920.330 ppb
2014-04-14201404170493ND
2014-04-142014041704940.0530 ppb
2014-04-142014041704950.1000 ppb
2014-04-142014041704960.170 ppb
2014-05-022014050604080.350 ppb
2014-05-02201405060409ND
2014-05-02201405060410ND
2014-05-022014050604110.0930 ppb
2014-05-022014050604120.160 ppb
2014-05-212014052303000.340 ppb
2014-05-21201405230301ND
2014-05-21201405230302ND
2014-05-212014052303030.0910 ppb
2014-05-212014052303040.160 ppb
2014-06-052014061003800.320 ppb
2014-06-05201406100381ND
2014-06-052014061003820.0630 ppb
2014-06-052014061003830.160 ppb
2014-06-052014061003840.260 ppb
2014-06-17201406190436AMND
2014-06-17201406190430AMND
2014-06-252014062704250.340 ppb
2014-06-25201406270426ND
2014-06-252014062704270.0540 ppb
2014-06-252014062704280.150 ppb
2014-06-252014062704290.270 ppb
2014-07-08C14-07-0051AND
2014-07-112014071506400.420 ppb
2014-07-11201407150641ND
2014-07-11201407150642ND
2014-07-112014071506430.0880 ppb
2014-07-112014071506440.170 ppb
2014-07-232014072502510.400 ppb
2014-07-23201407250252ND
2014-07-23201407250253ND
2014-07-232014072502540.110 ppb
2014-07-232014072502550.200 ppb
2014-08-132014081504250.420 ppb
2014-08-13201408150426ND
2014-08-132014081504270.0400 ppb
2014-08-132014081504280.1000 ppb
2014-08-132014081504290.190 ppb
2014-08-14201408190783ND
2014-08-14201408190815ND
2014-08-14201408190822ND
2014-08-14201408190830ND
2014-08-252014082708610.480 ppb
2014-08-25201408270862ND
2014-08-25201408270863ND
2014-08-252014082708640.110 ppb
2014-08-252014082708650.210 ppb
2014-09-102014091301470.360 ppb
2014-09-10201409130148ND
2014-09-102014091301490.0510 ppb
2014-09-102014091301500.110 ppb
2014-09-102014091301510.190 ppb
2014-09-232014092601120.380 ppb
2014-09-23201409260113ND
2014-09-232014092601140.0510 ppb
2014-09-232014092601150.120 ppb
2014-09-232014092601160.200 ppb
2014-09-24C14-09-0150A0.0400 ppb
2014-10-162014101703280.400 ppb
2014-10-16201410170329ND
2014-10-162014101703300.0530 ppb
2014-10-162014101703310.110 ppb
2014-10-162014101703320.190 ppb
2014-10-282014103004730.400 ppb
2014-10-28201410300474ND
2014-10-282014103004750.0480 ppb
2014-10-282014103004760.120 ppb
2014-10-282014103004770.230 ppb
2014-11-072014111101980.390 ppb
2014-11-07201411110199ND
2014-11-072014111102000.0460 ppb
2014-11-072014111102010.1000 ppb
2014-11-072014111102020.180 ppb
2014-11-192014112103290.380 ppb
2014-11-19201411210330ND
2014-11-192014112103310.0730 ppb
2014-11-192014112103320.170 ppb
2014-11-192014112103330.290 ppb
2014-12-122014121606620.340 ppb
2014-12-12201412160663ND
2014-12-122014121606640.0660 ppb
2014-12-122014121606650.170 ppb
2014-12-122014121606660.260 ppb
2014-12-192014122305930.390 ppb
2014-12-19201412230594ND
2014-12-192014122305950.0500 ppb
2014-12-192014122305960.130 ppb
2014-12-192014122305970.230 ppb
2016-01-140.440 ppb
2016-01-140.370 ppb
2016-01-140.260 ppb
2016-01-140.140 ppb
2016-01-140.0920 ppb
2016-01-270.460 ppb
2016-01-270.320 ppb
2016-01-270.210 ppb
2016-01-270.120 ppb
2016-01-270.0770 ppb
2016-02-110.490 ppb
2016-02-110.350 ppb
2016-02-110.240 ppb
2016-02-110.130 ppb
2016-02-110.0840 ppb
2016-02-220.490 ppb
2016-02-220.0500 ppb
2016-02-220.290 ppb
2016-02-220.200 ppb
2016-02-220.110 ppb
2016-02-220.0820 ppb
2016-03-040.500 ppb
2016-03-040.270 ppb
2016-03-040.190 ppb
2016-03-040.1000 ppb
2016-03-040.0700 ppb
2016-03-220.510 ppb
2016-03-220.290 ppb
2016-03-220.200 ppb
2016-03-220.110 ppb
2016-03-220.0750 ppb
2016-04-150.570 ppb
2016-04-150.410 ppb
2016-04-150.270 ppb
2016-04-150.140 ppb
2016-04-150.1000 ppb
2016-04-260.560 ppb
2016-04-260.420 ppb
2016-04-260.290 ppb
2016-04-260.140 ppb
2016-04-260.0960 ppb
2016-05-130.440 ppb
2016-05-13ND
2016-05-13ND
2016-05-13ND
2016-05-13ND
2016-05-250.420 ppb
2016-05-25ND
2016-05-25ND
2016-05-25ND
2016-05-25ND
2016-06-140.420 ppb
2016-06-14ND
2016-06-14ND
2016-06-14ND
2016-06-14ND
2016-06-15ND
2016-06-150.0500 ppb
2016-07-200.360 ppb
2016-07-20ND
2016-07-20ND
2016-07-20ND
2016-07-20ND
2016-07-260.380 ppb
2016-07-26ND
2016-07-26ND
2016-07-26ND
2016-07-26ND
2016-08-040.370 ppb
2016-08-04ND
2016-08-04ND
2016-08-04ND
2016-08-04ND
2016-08-220.440 ppb
2016-08-22ND
2016-08-22ND
2016-08-22ND
2016-08-22ND
2016-09-210.520 ppb
2016-09-21ND
2016-09-21ND
2016-09-21ND
2016-09-21ND
2016-09-26ND
2016-09-280.530 ppb
2016-09-28ND
2016-09-28ND
2016-09-28ND
2016-09-28ND
2016-10-100.460 ppb
2016-10-10ND
2016-10-10ND
2016-10-10ND
2016-10-10ND
2016-10-240.500 ppb
2016-10-24ND
2016-10-24ND
2016-10-24ND
2016-10-24ND
2016-11-100.500 ppb
2016-11-10ND
2016-11-10ND
2016-11-10ND
2016-11-10ND
2016-11-250.470 ppb
2016-11-25ND
2016-11-25ND
2016-11-25ND
2016-11-25ND
2016-11-28ND
2016-12-150.470 ppb
2016-12-15ND
2016-12-15ND
2016-12-15ND
2016-12-15ND
2016-12-270.480 ppb
2016-12-27ND
2016-12-27ND
2016-12-27ND
2016-12-27ND
2017-01-050.480 ppb
2017-01-05ND
2017-01-05ND
2017-01-05ND
2017-01-05ND
2017-01-190.580 ppb
2017-01-19ND
2017-01-19ND
2017-01-19ND
2017-01-19ND
2017-01-30ND
2017-01-30ND
2017-01-30ND
2017-01-300.0460 ppb
2017-01-30ND
2017-02-020.570 ppb
2017-02-02ND
2017-02-02ND
2017-02-02ND
2017-02-02ND
2017-02-220.630 ppb
2017-02-22ND
2017-02-22ND
2017-02-22ND
2017-02-22ND
2017-03-100.630 ppb
2017-03-10ND
2017-03-10ND
2017-03-10ND
2017-03-10ND
2017-03-160.620 ppb
2017-03-16ND
2017-03-16ND
2017-03-16ND
2017-03-16ND
2017-04-070.640 ppb
2017-04-07ND
2017-04-07ND
2017-04-07ND
2017-04-07ND
2017-04-240.600 ppb
2017-04-24ND
2017-04-24ND
2017-04-24ND
2017-04-24ND
2017-05-050.650 ppb
2017-05-05ND
2017-05-05ND
2017-05-05ND
2017-05-05ND
2017-05-190.620 ppb
2017-05-19ND
2017-05-19ND
2017-05-19ND
2017-05-19ND
2017-06-020.580 ppb
2017-06-02ND
2017-06-02ND
2017-06-02ND
2017-06-02ND
2017-06-270.540 ppb
2017-06-27ND
2017-06-27ND
2017-06-27ND
2017-06-27ND
2017-07-060.520 ppb
2017-07-06ND
2017-07-06ND
2017-07-06ND
2017-07-06ND
2017-07-200.530 ppb
2017-07-20ND
2017-07-20ND
2017-07-20ND
2017-07-20ND
2017-08-110.460 ppb
2017-08-11ND
2017-08-11ND
2017-08-11ND
2017-08-11ND
2017-08-220.520 ppb
2017-08-22ND
2017-08-22ND
2017-08-22ND
2017-08-22ND
2017-09-07ND
2017-09-07ND
2017-09-07ND
2017-09-080.420 ppb
2017-09-08ND
2017-09-08ND
2017-09-08ND
2017-09-08ND
2017-09-220.470 ppb
2017-09-220.0520 ppb
2017-09-22ND
2017-09-22ND
2017-09-22ND
2017-10-120.480 ppb
2017-10-120.0460 ppb
2017-10-12ND
2017-10-12ND
2017-10-12ND
2017-10-260.530 ppb
2017-10-26ND
2017-10-26ND
2017-10-26ND
2017-10-26ND
2017-10-30ND
2017-10-30ND
2017-11-020.560 ppb
2017-11-020.0400 ppb
2017-11-02ND
2017-11-02ND
2017-11-02ND
2017-11-170.540 ppb
2017-11-170.0420 ppb
2017-11-17ND
2017-11-17ND
2017-11-17ND
2017-12-01ND
2017-12-01ND
2017-12-01ND
2017-12-01ND
2017-12-010.560 ppb
2017-12-260.480 ppb
2017-12-26ND
2017-12-26ND
2017-12-26ND
2017-12-26ND
2018-01-04201712030007ND
2018-01-04201712030006ND
2018-01-04201712030005ND
2018-01-042017120300040.500 ppb
2018-01-04201712030008ND
2018-01-192017121700250.0440 ppb
2018-01-19201712170024ND
2018-01-19201712170023ND
2018-01-19201712170022ND
2018-01-192017121700210.520 ppb
2018-01-31201801031006ND
2018-02-022018020613280.0830 ppb
2018-02-02201802061327ND
2018-02-02201802061326ND
2018-02-02201802061325ND
2018-02-022018020613290.510 ppb
2018-02-162018022104350.0810 ppb
2018-02-16201802210434ND
2018-02-16201802210433ND
2018-02-16201802210432ND
2018-02-162018022104360.480 ppb
2018-03-142018031904130.1000 ppb
2018-03-14201803190412ND
2018-03-14201803190411ND
2018-03-14201803190410ND
2018-03-142018031904140.460 ppb
2018-03-222018032811070.130 ppb
2018-03-22201803281106ND
2018-03-22201803281105ND
2018-03-22201803281104ND
2018-03-222018032811080.460 ppb
2018-04-132018041709860.200 ppb
2018-04-13201804170985ND
2018-04-13201804170984ND
2018-04-13201804170983ND
2018-04-132018041709820.420 ppb
2018-04-242018042704810.230 ppb
2018-04-24201804270480ND
2018-04-24201804270479ND
2018-04-24201804270478ND
2018-04-242018042704820.350 ppb
2018-05-10201804020005ND
2018-05-10201804020004ND
2018-05-10201804020003ND
2018-05-102018040200020.360 ppb
2018-05-102018040200060.280 ppb
2018-05-212018041600150.210 ppb
2018-05-21201804160014ND
2018-05-21201804160013ND
2018-05-21201804160012ND
2018-05-212018041600110.440 ppb
2018-06-072018061407250.280 ppb
2018-06-07201806140724ND
2018-06-07201806140723ND
2018-06-07201806140722ND
2018-06-072018061407260.380 ppb
2018-06-212018050300180.330 ppb
2018-06-21201805030017ND
2018-06-21201805030016ND
2018-06-21201805030015ND
2018-06-212018050300140.400 ppb
2018-07-062018071110670.330 ppb
2018-07-062018071110660.0510 ppb
2018-07-06201807111065ND
2018-07-06201807111064ND
2018-07-062018071110680.410 ppb
2018-07-192018030301120.340 ppb
2018-07-192018030301110.0690 ppb
2018-07-19201803030110ND
2018-07-19201803030109ND
2018-07-192018030301080.400 ppb
2018-08-032018080704270.330 ppb
2018-08-032018080704260.0850 ppb
2018-08-03201808070425ND
2018-08-03201808070424ND
2018-08-032018080704280.370 ppb
2018-08-162018071700050.340 ppb
2018-08-162018071700040.1000 ppb
2018-08-16201807170003ND
2018-08-16201807170002ND
2018-08-162018071700060.380 ppb
2018-09-062018083103010.280 ppb
2018-09-062018083103000.0520 ppb
2018-09-06201808310299ND
2018-09-06201808310298ND
2018-09-062018083103020.480 ppb
2018-09-212018092504850.240 ppb
2018-09-212018092504840.0440 ppb
2018-09-21201809250483ND
2018-09-21201809250482ND
2018-09-212018092504860.540 ppb
2018-10-052018100902970.310 ppb
2018-10-052018100902960.0720 ppb
2018-10-05201810090295ND
2018-10-05201810090294ND
2018-10-052018100902980.480 ppb
2018-10-172018091600060.280 ppb
2018-10-172018091600050.0520 ppb
2018-10-17201809160004ND
2018-10-17201809160003ND
2018-10-172018091600070.530 ppb
2018-11-012018110604360.210 ppb
2018-11-01201811060435ND
2018-11-01201811060434ND
2018-11-01201811060433ND
2018-11-012018110604370.530 ppb
2018-11-232018100300040.230 ppb
2018-11-23201810030003ND
2018-11-23201810030002ND
2018-11-23201810030001ND
2018-11-232018100300050.570 ppb
2018-12-072018101700040.210 ppb
2018-12-07201810170003ND
2018-12-07201810170002ND
2018-12-07201810170001ND
2018-12-072018101700050.560 ppb
2018-12-192018122103080.200 ppb
2018-12-19201812210307ND
2018-12-19201812210306ND
2018-12-19201812210305ND
2018-12-192018122103090.560 ppb
2019-01-112018083104340.160 ppb
2019-01-11201808310433ND
2019-01-11201808310432ND
2019-01-11201808310431ND
2019-01-112018083104350.540 ppb
2019-01-252018121700060.190 ppb
2019-01-25201812170005ND
2019-01-252018121700070.540 ppb
2019-01-302019020102150.0410 ppb
2019-02-072018111600150.170 ppb
2019-02-07201811160014ND
2019-02-07201811160013ND
2019-02-07201811160012ND
2019-02-072018111600160.510 ppb
2019-02-212018120300060.180 ppb
2019-02-21201812030005ND
2019-02-21201812030004ND
2019-02-21201812030003ND
2019-02-212018120300070.560 ppb
2019-03-082019010300040.190 ppb
2019-03-08201901030003ND
2019-03-08201901030002ND
2019-03-08201901030001ND
2019-03-082019010300050.570 ppb
2019-03-202019013100040.170 ppb
2019-03-20201901310003ND
2019-03-20201901310002ND
2019-03-20201901310001ND
2019-03-202019013100050.550 ppb
2019-04-052019021400060.210 ppb
2019-04-05201902140005ND
2019-04-05201902140004ND
2019-04-05201902140003ND
2019-04-052019021400070.610 ppb
2019-04-172019030300040.200 ppb
2019-04-17201903030003ND
2019-04-17201903030002ND
2019-04-17201903030001ND
2019-04-172019030300050.560 ppb
2019-05-032019031600370.150 ppb
2019-05-03201903160036ND
2019-05-03201903160035ND
2019-05-03201903160034ND
2019-05-032019031600380.490 ppb
2019-05-162019052101850.180 ppb
2019-05-16201905210184ND
2019-05-16201905210183ND
2019-05-16201905210182ND
2019-05-162019052101860.530 ppb
2019-06-072019041600060.190 ppb
2019-06-07201904160005ND
2019-06-07201904160004ND
2019-06-07201904160003ND
2019-06-072019041600070.520 ppb
2019-06-212019050300040.180 ppb
2019-06-21201905030003ND
2019-06-21201905030002ND
2019-06-21201905030001ND
2019-06-212019050300050.550 ppb
2019-07-032019070904850.150 ppb
2019-07-03201907090484ND
2019-07-03201907090483ND
2019-07-03201907090482ND
2019-07-032019070904860.500 ppb
2019-07-232019072701700.210 ppb
2019-07-23201907270169ND
2019-07-23201907270168ND
2019-07-23201907270167ND
2019-07-232019072701710.540 ppb
2019-08-092019061600040.170 ppb
2019-08-09201906160003ND
2019-08-09201906160002ND
2019-08-09201906160001ND
2019-08-092019061600050.480 ppb
2019-08-232019070300040.140 ppb
2019-08-23201907030003ND
2019-08-23201907030002ND
2019-08-23201907030001ND
2019-08-232019070300050.500 ppb
2019-09-06201908030089ND
2019-09-06201908030088ND
2019-09-062019080300870.140 ppb
2019-09-06201908030086ND
2019-09-062019080300900.540 ppb
2019-09-232019092505480.140 ppb
2019-09-23201909250547ND
2019-09-23201909250546ND
2019-09-23201909250545ND
2019-09-232019092505490.570 ppb
2019-10-112019081701000.130 ppb
2019-10-11201908170099ND
2019-10-11201908170098ND
2019-10-11201908170097ND
2019-10-112019081701010.550 ppb
2019-10-242019090200040.160 ppb
2019-10-24201909020003ND
2019-10-24201909020002ND
2019-10-24201909020001ND
2019-10-242019090200050.540 ppb
2019-11-012019110514370.220 ppb
2019-11-01201911051436ND
2019-11-01201911051435ND
2019-11-01201911051434ND
2019-11-012019110514380.520 ppb
2019-11-152019111906950.170 ppb
2019-11-15201911190694ND
2019-11-15201911190693ND
2019-11-15201911190692ND
2019-11-152019111906960.510 ppb
2019-12-062019121006550.120 ppb
2019-12-06201912100654ND
2019-12-06201912100653ND
2019-12-06201912100652ND
2019-12-062019121006560.490 ppb
2019-12-162019120306750.130 ppb
2019-12-16201912030674ND
2019-12-16201912030673ND
2019-12-16201912030672ND
2019-12-162019120306760.480 ppb