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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Bossier City Water System

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

384

Samples

0

Samples exceeding legal limit (MCL)

368

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.32 ppb64640.680 ppb - 2.90 ppb
20150.949 ppb64640.390 ppb - 2.10 ppb
20160.768 ppb6462ND - 1.90 ppb
20173.85 ppb6454ND - 20.4 ppb
20184.92 ppb6460ND - 32.2 ppb
20194.28 ppb64640.700 ppb - 22.7 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 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.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-20680-98841-100.900 ppb
2014-02-20680-98841-111.80 ppb
2014-02-20680-98841-120.950 ppb
2014-02-20680-98841-131.80 ppb
2014-02-20680-98841-140.890 ppb
2014-02-20680-98841-150.880 ppb
2014-02-20680-98841-160.910 ppb
2014-02-20680-98841-91.20 ppb
2014-02-20680-98841-100.900 ppb
2014-02-20680-98841-111.80 ppb
2014-02-20680-98841-120.950 ppb
2014-02-20680-98841-131.80 ppb
2014-02-20680-98841-140.890 ppb
2014-02-20680-98841-150.880 ppb
2014-02-20680-98841-160.910 ppb
2014-02-20680-98841-91.20 ppb
2014-05-15680-101371-111.20 ppb
2014-05-15680-101371-121.60 ppb
2014-05-15680-101371-132.20 ppb
2014-05-15680-101371-142.90 ppb
2014-05-15680-101371-152.60 ppb
2014-05-15680-101371-162.30 ppb
2014-05-15680-101371-172.40 ppb
2014-05-15680-101371-181.60 ppb
2014-05-15680-101371-111.20 ppb
2014-05-15680-101371-121.60 ppb
2014-05-15680-101371-132.20 ppb
2014-05-15680-101371-142.90 ppb
2014-05-15680-101371-152.60 ppb
2014-05-15680-101371-162.30 ppb
2014-05-15680-101371-172.40 ppb
2014-05-15680-101371-181.60 ppb
2014-08-21680-104518-10.760 ppb
2014-08-21680-104518-20.850 ppb
2014-08-21680-104518-31.60 ppb
2014-08-21680-104518-40.680 ppb
2014-08-21680-104518-50.930 ppb
2014-08-21680-104518-61.50 ppb
2014-08-21680-104518-71.60 ppb
2014-08-21680-104518-80.890 ppb
2014-08-21680-104518-10.760 ppb
2014-08-21680-104518-20.850 ppb
2014-08-21680-104518-31.60 ppb
2014-08-21680-104518-40.680 ppb
2014-08-21680-104518-50.930 ppb
2014-08-21680-104518-61.50 ppb
2014-08-21680-104518-71.60 ppb
2014-08-21680-104518-80.890 ppb
2014-11-20680-107558-10.840 ppb
2014-11-20680-107558-20.920 ppb
2014-11-20680-107558-30.920 ppb
2014-11-20680-107558-40.940 ppb
2014-11-20680-107558-51.000 ppb
2014-11-20680-107558-60.960 ppb
2014-11-20680-107558-71.000 ppb
2014-11-20680-107558-80.840 ppb
2014-11-20680-107558-10.840 ppb
2014-11-20680-107558-20.920 ppb
2014-11-20680-107558-30.920 ppb
2014-11-20680-107558-40.940 ppb
2014-11-20680-107558-51.000 ppb
2014-11-20680-107558-60.960 ppb
2014-11-20680-107558-71.000 ppb
2014-11-20680-107558-80.840 ppb
2015-02-19680-110052-101.30 ppb
2015-02-19680-110052-111.20 ppb
2015-02-19680-110052-121.20 ppb
2015-02-19680-110052-131.20 ppb
2015-02-19680-110052-61.20 ppb
2015-02-19680-110052-70.880 ppb
2015-02-19680-110052-81.30 ppb
2015-02-19680-110052-91.20 ppb
2015-02-19680-110052-101.30 ppb
2015-02-19680-110052-111.20 ppb
2015-02-19680-110052-121.20 ppb
2015-02-19680-110052-131.20 ppb
2015-02-19680-110052-61.20 ppb
2015-02-19680-110052-70.880 ppb
2015-02-19680-110052-81.30 ppb
2015-02-19680-110052-91.20 ppb
2015-05-21680-112829-11.000 ppb
2015-05-21680-112829-22.10 ppb
2015-05-21680-112829-31.70 ppb
2015-05-21680-112829-41.40 ppb
2015-05-21680-112829-51.40 ppb
2015-05-21680-112829-61.10 ppb
2015-05-21680-112829-71.40 ppb
2015-05-21680-112829-81.50 ppb
2015-05-21680-112829-11.000 ppb
2015-05-21680-112829-22.10 ppb
2015-05-21680-112829-31.70 ppb
2015-05-21680-112829-41.40 ppb
2015-05-21680-112829-51.40 ppb
2015-05-21680-112829-61.10 ppb
2015-05-21680-112829-71.40 ppb
2015-05-21680-112829-81.50 ppb
2015-08-20680-115908-10.640 ppb
2015-08-20680-115908-20.780 ppb
2015-08-20680-115908-30.830 ppb
2015-08-20680-115908-40.720 ppb
2015-08-20680-115908-50.530 ppb
2015-08-20680-115908-60.690 ppb
2015-08-20680-115908-70.540 ppb
2015-08-20680-115908-80.670 ppb
2015-08-20680-115908-10.640 ppb
2015-08-20680-115908-20.780 ppb
2015-08-20680-115908-30.830 ppb
2015-08-20680-115908-40.720 ppb
2015-08-20680-115908-50.530 ppb
2015-08-20680-115908-60.690 ppb
2015-08-20680-115908-70.540 ppb
2015-08-20680-115908-80.670 ppb
2015-11-19680-119268-10.480 ppb
2015-11-19680-119268-20.390 ppb
2015-11-19680-119268-30.440 ppb
2015-11-19680-119268-40.500 ppb
2015-11-19680-119268-50.490 ppb
2015-11-19680-119268-60.530 ppb
2015-11-19680-119268-70.490 ppb
2015-11-19680-119268-80.570 ppb
2015-11-19680-119268-10.480 ppb
2015-11-19680-119268-20.390 ppb
2015-11-19680-119268-30.440 ppb
2015-11-19680-119268-40.500 ppb
2015-11-19680-119268-50.490 ppb
2015-11-19680-119268-60.530 ppb
2015-11-19680-119268-70.490 ppb
2015-11-19680-119268-80.570 ppb
2016-02-18680-122228-10.710 ppb
2016-02-18680-122228-20.750 ppb
2016-02-18680-122228-30.730 ppb
2016-02-18680-122228-40.870 ppb
2016-02-18680-122228-50.710 ppb
2016-02-18680-122228-60.730 ppb
2016-02-18680-122228-70.750 ppb
2016-02-18680-122228-80.690 ppb
2016-02-18680-122228-10.710 ppb
2016-02-18680-122228-20.750 ppb
2016-02-18680-122228-30.730 ppb
2016-02-18680-122228-40.870 ppb
2016-02-18680-122228-50.710 ppb
2016-02-18680-122228-60.730 ppb
2016-02-18680-122228-70.750 ppb
2016-02-18680-122228-80.690 ppb
2016-05-19680-125519-11.000 ppb
2016-05-19680-125519-2ND
2016-05-19680-125519-31.60 ppb
2016-05-19680-125519-41.90 ppb
2016-05-19680-125519-51.40 ppb
2016-05-19680-125519-60.980 ppb
2016-05-19680-125519-71.10 ppb
2016-05-19680-125519-81.50 ppb
2016-05-19680-125519-11.000 ppb
2016-05-19680-125519-2ND
2016-05-19680-125519-31.60 ppb
2016-05-19680-125519-41.90 ppb
2016-05-19680-125519-51.40 ppb
2016-05-19680-125519-60.980 ppb
2016-05-19680-125519-71.10 ppb
2016-05-19680-125519-81.50 ppb
2016-08-18680-128924-10.580 ppb
2016-08-18680-128924-20.580 ppb
2016-08-18680-128924-30.530 ppb
2016-08-18680-128924-40.730 ppb
2016-08-18680-128924-50.690 ppb
2016-08-18680-128924-60.640 ppb
2016-08-18680-128924-70.630 ppb
2016-08-18680-128924-80.500 ppb
2016-08-18680-128924-10.580 ppb
2016-08-18680-128924-20.580 ppb
2016-08-18680-128924-30.530 ppb
2016-08-18680-128924-40.730 ppb
2016-08-18680-128924-50.690 ppb
2016-08-18680-128924-60.640 ppb
2016-08-18680-128924-70.630 ppb
2016-08-18680-128924-80.500 ppb
2016-11-10680-132010-100.500 ppb
2016-11-10680-132010-110.510 ppb
2016-11-10680-132010-120.460 ppb
2016-11-10680-132010-130.530 ppb
2016-11-10680-132010-140.650 ppb
2016-11-10680-132010-150.510 ppb
2016-11-10680-132010-160.570 ppb
2016-11-10680-132010-90.530 ppb
2016-11-10680-132010-100.500 ppb
2016-11-10680-132010-110.510 ppb
2016-11-10680-132010-120.460 ppb
2016-11-10680-132010-130.530 ppb
2016-11-10680-132010-140.650 ppb
2016-11-10680-132010-150.510 ppb
2016-11-10680-132010-160.570 ppb
2016-11-10680-132010-90.530 ppb
2017-02-09352945810110.880 ppb
2017-02-09352945810120.920 ppb
2017-02-09352945810130.860 ppb
2017-02-09352945810140.930 ppb
2017-02-0935294581015ND
2017-02-0935294581016ND
2017-02-09352945810170.730 ppb
2017-02-09352945810180.740 ppb
2017-02-09352945810110.880 ppb
2017-02-09352945810120.920 ppb
2017-02-09352945810130.860 ppb
2017-02-09352945810140.930 ppb
2017-02-0935294581015ND
2017-02-0935294581016ND
2017-02-09352945810170.730 ppb
2017-02-09352945810180.740 ppb
2017-05-12353120270186.40 ppb
2017-05-123531202701910.9 ppb
2017-05-123531202702012.7 ppb
2017-05-123531202702115.0 ppb
2017-05-123531202702220.4 ppb
2017-05-123531202702313.9 ppb
2017-05-123531202702411.7 ppb
2017-05-123531202702510.7 ppb
2017-05-12353120270186.40 ppb
2017-05-123531202701910.9 ppb
2017-05-123531202702012.7 ppb
2017-05-123531202702115.0 ppb
2017-05-123531202702220.4 ppb
2017-05-123531202702313.9 ppb
2017-05-123531202702411.7 ppb
2017-05-123531202702510.7 ppb
2017-09-26353388990020.970 ppb
2017-09-26353388990031.10 ppb
2017-09-26353388990041.10 ppb
2017-09-2635338899005ND
2017-09-2635338899006ND
2017-09-26353388990070.860 ppb
2017-09-26353388990080.810 ppb
2017-09-26353388990091.20 ppb
2017-09-26353388990020.970 ppb
2017-09-26353388990031.10 ppb
2017-09-26353388990041.10 ppb
2017-09-2635338899005ND
2017-09-2635338899006ND
2017-09-26353388990070.860 ppb
2017-09-26353388990080.810 ppb
2017-09-26353388990091.20 ppb
2017-11-02353461120011.50 ppb
2017-11-02353461120021.50 ppb
2017-11-02353461120031.30 ppb
2017-11-02353461120041.40 ppb
2017-11-0235346112005ND
2017-11-02353461120061.40 ppb
2017-11-02353461120071.70 ppb
2017-11-02353461120081.70 ppb
2017-11-02353461120011.50 ppb
2017-11-02353461120021.50 ppb
2017-11-02353461120031.30 ppb
2017-11-02353461120041.40 ppb
2017-11-0235346112005ND
2017-11-02353461120061.40 ppb
2017-11-02353461120071.70 ppb
2017-11-02353461120081.70 ppb
2018-02-12353738980011.50 ppb
2018-02-12353738980021.60 ppb
2018-02-12353738980031.60 ppb
2018-02-12353738980051.50 ppb
2018-02-12353738980061.60 ppb
2018-02-12353738980071.50 ppb
2018-02-12353738980081.60 ppb
2018-02-12353738980011.50 ppb
2018-02-12353738980021.60 ppb
2018-02-12353738980031.60 ppb
2018-02-12353738980051.50 ppb
2018-02-12353738980061.60 ppb
2018-02-12353738980071.50 ppb
2018-02-12353738980081.60 ppb
2018-02-15353751040010.670 ppb
2018-02-15353751040010.670 ppb
2018-05-173539325900132.2 ppb
2018-05-17353932590021.70 ppb
2018-05-17353932590031.50 ppb
2018-05-17353932590041.70 ppb
2018-05-173539325900532.0 ppb
2018-05-17353932590061.70 ppb
2018-05-17353932590072.00 ppb
2018-05-17353932590081.70 ppb
2018-05-173539325900132.2 ppb
2018-05-17353932590021.70 ppb
2018-05-17353932590031.50 ppb
2018-05-17353932590041.70 ppb
2018-05-173539325900532.0 ppb
2018-05-17353932590061.70 ppb
2018-05-17353932590072.00 ppb
2018-05-17353932590081.70 ppb
2018-08-16354120530011.50 ppb
2018-08-16354120530021.70 ppb
2018-08-16354120530031.50 ppb
2018-08-16354120530040.390 ppb
2018-08-1635412053005ND
2018-08-16354120530061.70 ppb
2018-08-1635412053007ND
2018-08-16354120530080.400 ppb
2018-08-16354120530011.50 ppb
2018-08-16354120530021.70 ppb
2018-08-16354120530031.50 ppb
2018-08-16354120530040.390 ppb
2018-08-1635412053005ND
2018-08-16354120530061.70 ppb
2018-08-1635412053007ND
2018-08-16354120530080.400 ppb
2018-11-01354281770014.00 ppb
2018-11-01354281770026.60 ppb
2018-11-01354281770037.00 ppb
2018-11-01354281770045.40 ppb
2018-11-013542817700517.4 ppb
2018-11-01354281770068.80 ppb
2018-11-01354281770078.40 ppb
2018-11-01354281770086.60 ppb
2018-11-01354281770014.00 ppb
2018-11-01354281770026.60 ppb
2018-11-01354281770037.00 ppb
2018-11-01354281770045.40 ppb
2018-11-013542817700517.4 ppb
2018-11-01354281770068.80 ppb
2018-11-01354281770078.40 ppb
2018-11-01354281770086.60 ppb
2019-02-21354502420016.40 ppb
2019-02-213545024200212.2 ppb
2019-02-21354502420039.20 ppb
2019-02-213545024200422.7 ppb
2019-02-213545024200517.7 ppb
2019-02-213545024200613.0 ppb
2019-02-213545024200714.6 ppb
2019-02-213545024200811.8 ppb
2019-02-21354502420016.40 ppb
2019-02-213545024200212.2 ppb
2019-02-21354502420039.20 ppb
2019-02-213545024200422.7 ppb
2019-02-213545024200517.7 ppb
2019-02-213545024200613.0 ppb
2019-02-213545024200714.6 ppb
2019-02-213545024200811.8 ppb
2019-05-10354683090011.30 ppb
2019-05-10354683090021.30 ppb
2019-05-10354683090031.40 ppb
2019-05-10354683090041.30 ppb
2019-05-10354683090051.30 ppb
2019-05-10354683090061.30 ppb
2019-05-10354683090071.30 ppb
2019-05-10354683090081.30 ppb
2019-05-10354683090011.30 ppb
2019-05-10354683090021.30 ppb
2019-05-10354683090031.40 ppb
2019-05-10354683090041.30 ppb
2019-05-10354683090051.30 ppb
2019-05-10354683090061.30 ppb
2019-05-10354683090071.30 ppb
2019-05-10354683090081.30 ppb
2019-08-02354871840011.20 ppb
2019-08-02354871840021.80 ppb
2019-08-02354871840031.30 ppb
2019-08-02354871840041.30 ppb
2019-08-02354871840051.70 ppb
2019-08-02354871840061.60 ppb
2019-08-02354871840071.20 ppb
2019-08-02354871840081.50 ppb
2019-08-02354871840011.20 ppb
2019-08-02354871840021.80 ppb
2019-08-02354871840031.30 ppb
2019-08-02354871840041.30 ppb
2019-08-02354871840051.70 ppb
2019-08-02354871840061.60 ppb
2019-08-02354871840071.20 ppb
2019-08-02354871840081.50 ppb
2019-11-05355105270011.40 ppb
2019-11-05355105270020.730 ppb
2019-11-05355105270030.870 ppb
2019-11-05355105270040.870 ppb
2019-11-05355105270050.840 ppb
2019-11-05355105270060.850 ppb
2019-11-05355105270070.700 ppb
2019-11-05355105270080.890 ppb
2019-11-05355105270011.40 ppb
2019-11-05355105270020.730 ppb
2019-11-05355105270030.870 ppb
2019-11-05355105270040.870 ppb
2019-11-05355105270050.840 ppb
2019-11-05355105270060.850 ppb
2019-11-05355105270070.700 ppb
2019-11-05355105270080.890 ppb