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EWG's Tap Water Database — 2021 UPDATE

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Trichloroethylene

South Gate Water Department

Trichloroethylene, an industrial solvent and common groundwater pollutant, damages the immune system, harms the developing fetus and causes cancer. Read More.

Trichloroethylene was once commonly used to remove grease from metal parts, such as steel pipes and engines, and as a solvent in dry cleaning and carpet cleaning products. Drinking trichloroethylene-contaminated drinking water has been linked with birth defects, leukemia, and liver and kidney damage. Trichloroethylene is highly volatile and can enter indoor air through water in pipes. If trichloroethylene is present, people can inhale it while bathing, washing dishes and doing other household activities that involve water.

Click here to read more about carcinogenic VOCs.

MORE ABOUT THIS CONTAMINANT

 

196

Samples

0

Samples exceeding legal limit (MCL)

119

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
20150.500 ppb330.450 ppb - 0.540 ppb
20161.15 ppb57570.370 ppb - 3.31 ppb
20170.869 ppb4745ND - 2.30 ppb
20180.0778 ppb375ND - 0.650 ppb
20190.116 ppb5210ND - 0.910 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG Health Guideline of 0.4 ppb for trichloroethylene was defined by the state of Minnesota as health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the developing fetus and damage to the immune system.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for trichloroethylene, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppb = parts per billion

All test results

Date Lab ID Result
2015-12-149440-021-12120.450 ppb
2015-12-219440-021-08550.510 ppb
2015-12-299440-021-07320.540 ppb
2016-01-049440-021-09400.670 ppb
2016-01-119440-021-09051.01 ppb
2016-01-199440-021-09251.12 ppb
2016-01-269440-021-09280.410 ppb
2016-02-019440-021-09550.370 ppb
2016-02-089440-021-09150.840 ppb
2016-02-179440-021-10220.900 ppb
2016-02-229440-021-02431.000 ppb
2016-02-299440-021-08450.950 ppb
2016-03-079440-021-08330.900 ppb
2016-03-149440-021-11190.980 ppb
2016-03-219440-021-11040.900 ppb
2016-03-309440-021-09120.440 ppb
2016-04-049440-021-10200.790 ppb
2016-04-119440-021-08301.10 ppb
2016-04-189440-021-08510.980 ppb
2016-04-259440-021-07471.08 ppb
2016-05-029440-021-09340.990 ppb
2016-05-099440-021-08160.960 ppb
2016-05-169440-021-08371.000 ppb
2016-05-249440-021-09451.12 ppb
2016-06-019440-021-08060.940 ppb
2016-06-079440-021-09491.16 ppb
2016-06-139440-021-09341.13 ppb
2016-06-219440-021-12011.11 ppb
2016-06-279440-021-10011.18 ppb
2016-07-059440-021-11311.32 ppb
2016-07-129440-021-09470.920 ppb
2016-07-189440-021-08161.05 ppb
2016-08-019440-021-08532.41 ppb
2016-08-019440-021-09060.810 ppb
2016-08-089440-021-08290.900 ppb
2016-08-089440-021-08382.07 ppb
2016-08-159440-021-10560.790 ppb
2016-08-229440-021-09030.950 ppb
2016-08-229440-021-09062.64 ppb
2016-08-299440-021-07561.14 ppb
2016-08-299440-021-08011.52 ppb
2016-09-079440-021-09131.10 ppb
2016-09-079440-021-09163.21 ppb
2016-09-129440-021-08163.31 ppb
2016-09-129440-021-08191.17 ppb
2016-09-199440-021-08393.16 ppb
2016-09-229440-021-12441.35 ppb
2016-10-039588-021-09550.940 ppb
2016-10-129588-021-11130.970 ppb
2016-10-199588-021-09360.930 ppb
2016-10-249588-021-09591.000 ppb
2016-10-319588-021-10180.860 ppb
2016-11-099588-021-10160.950 ppb
2016-11-149588-021-10220.930 ppb
2016-11-239588-021-09510.950 ppb
2016-11-289588-021-10240.990 ppb
2016-12-059588-021-09580.710 ppb
2016-12-129588-021-07410.790 ppb
2016-12-199588-021-11510.760 ppb
2016-12-269588-021-08260.880 ppb
2017-01-049588-021-09370.730 ppb
2017-01-099588-021-09010.730 ppb
2017-01-189588-021-09280.690 ppb
2017-01-259588-021-08400.700 ppb
2017-01-309588-021-08170.780 ppb
2017-02-069588-021-08120.790 ppb
2017-02-159588-021-00000.720 ppb
2017-02-229588-021-08402.00 ppb
2017-02-279588-021-09050.960 ppb
2017-03-069588-021-08100.870 ppb
2017-03-139588-021-08370.890 ppb
2017-03-209588-021-08550.930 ppb
2017-03-299588-021-00000.800 ppb
2017-04-039588-021-10530.750 ppb
2017-04-129588-021-08100.830 ppb
2017-04-179588-021-10430.790 ppb
2017-04-249588-021-09310.990 ppb
2017-05-019588-021-09291.10 ppb
2017-05-089588-021-09211.000 ppb
2017-05-159588-021-09011.000 ppb
2017-05-229588-021-10190.840 ppb
2017-05-319588-021-10110.890 ppb
2017-06-059588-021-10110.730 ppb
2017-06-129588-021-09310.960 ppb
2017-06-219588-021-10272.30 ppb
2017-06-269588-021-09160.790 ppb
2017-07-059588-021-08480.850 ppb
2017-07-109588-021-09420.790 ppb
2017-07-179588-021-09490.770 ppb
2017-07-249588-021-08220.970 ppb
2017-08-079588-021-14301.10 ppb
2017-08-149588-021-07120.650 ppb
2017-08-219588-021-12150.730 ppb
2017-08-289588-021-0800ND
2017-09-069588-021-09300.870 ppb
2017-09-119588-021-08140.940 ppb
2017-09-189588-021-09051.40 ppb
2017-09-259588-021-07400.550 ppb
2017-10-029588-021-10340.970 ppb
2017-10-099588-021-1043ND
2017-10-169588-021-09210.630 ppb
2017-10-259588-021-08450.990 ppb
2017-10-309588-021-09250.840 ppb
2017-11-069588-021-08260.650 ppb
2017-11-139588-021-08330.830 ppb
2017-11-209588-021-08200.890 ppb
2017-11-279588-021-10070.870 ppb
2018-04-119588-021-0828ND
2018-04-189588-021-0832ND
2018-04-239588-021-0927ND
2018-04-309588-021-0833ND
2018-05-079588-021-0921ND
2018-05-149588-021-0848ND
2018-05-219588-021-0843ND
2018-05-309588-021-0752ND
2018-06-049588-021-0948ND
2018-06-139588-021-0816ND
2018-06-189588-021-1008ND
2018-06-279588-021-0942ND
2018-07-029588-021-0856ND
2018-07-169588-021-0840ND
2018-07-239588-021-0720ND
2018-07-309588-021-0735ND
2018-08-069588-021-0736ND
2018-08-139588-021-0705ND
2018-08-209588-021-0740ND
2018-08-279588-021-0812ND
2018-09-059588-021-0916ND
2018-09-109588-021-0727ND
2018-09-179588-021-0827ND
2018-09-249588-021-0818ND
2018-10-019588-021-0815ND
2018-10-089588-021-0949ND
2018-10-159588-021-09390.630 ppb
2018-10-229588-021-09470.650 ppb
2018-10-299588-021-0807ND
2018-11-059588-021-1024ND
2018-11-129588-021-10450.590 ppb
2018-11-199588-021-1044ND
2018-11-269588-021-0932ND
2018-12-039588-021-1109ND
2018-12-109588-021-0912ND
2018-12-199588-021-10190.500 ppb
2018-12-269588-021-09010.510 ppb
2019-01-019588-021-0808ND
2019-01-079588-021-0827ND
2019-01-149588-021-09240.540 ppb
2019-01-239588-021-0815ND
2019-01-289588-021-0758ND
2019-02-049588-021-0847ND
2019-02-119588-021-10100.570 ppb
2019-02-209588-021-09550.500 ppb
2019-02-259588-021-0749ND
2019-03-049588-021-0831ND
2019-03-119588-021-08150.510 ppb
2019-03-189588-021-09220.560 ppb
2019-03-279588-021-07050.580 ppb
2019-04-039588-021-09590.600 ppb
2019-04-089588-021-0943ND
2019-04-159588-021-0816ND
2019-04-229588-021-0836ND
2019-04-299588-021-0809ND
2019-05-069588-021-1046ND
2019-05-139588-021-0903ND
2019-05-209588-021-08200.570 ppb
2019-05-299588-021-0755ND
2019-06-039588-021-0824ND
2019-06-109588-021-1054ND
2019-06-179588-021-0849ND
2019-06-249588-021-0859ND
2019-07-019588-021-0738ND
2019-07-089588-021-0812ND
2019-07-159588-021-0936ND
2019-07-229588-021-0835ND
2019-07-299588-021-0720ND
2019-08-059588-021-0848ND
2019-08-129588-021-07250.910 ppb
2019-08-199588-021-0850ND
2019-08-269588-021-0905ND
2019-09-049588-021-0805ND
2019-09-099588-021-0936ND
2019-09-239588-021-0726ND
2019-10-029588-021-1001ND
2019-10-079588-021-0834ND
2019-10-149588-021-09540.700 ppb
2019-10-219588-021-1003ND
2019-10-289588-021-1020ND
2019-11-049588-021-1000ND
2019-11-119588-021-0918ND
2019-11-189588-021-0959ND
2019-11-259588-021-0754ND
2019-12-029588-021-0849ND
2019-12-099588-021-0800ND
2019-12-169588-021-0750ND
2019-12-239588-021-0831ND
2019-12-309588-021-0915ND