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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Shreveport 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.

 

404

Samples

0

Samples exceeding legal limit (MCL)

394

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20145.20 ppb48481.10 ppb - 27.0 ppb
20155.36 ppb64643.00 ppb - 9.10 ppb
20162.99 ppb64641.40 ppb - 4.60 ppb
20172.17 ppb6454ND - 4.40 ppb
20185.85 ppb64643.10 ppb - 9.50 ppb
20198.88 ppb1001002.60 ppb - 16.0 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
2014-03-1129903891.10 ppb
2014-03-1129903911.10 ppb
2014-03-11299039327.0 ppb
2014-03-1129903953.10 ppb
2014-03-1129903977.40 ppb
2014-03-1129903993.80 ppb
2014-03-1129904011.70 ppb
2014-03-1129904031.40 ppb
2014-03-1129903891.10 ppb
2014-03-1129903911.10 ppb
2014-03-11299039327.0 ppb
2014-03-1129903953.10 ppb
2014-03-1129903977.40 ppb
2014-03-1129903993.80 ppb
2014-03-1129904011.70 ppb
2014-03-1129904031.40 ppb
2014-06-1030419445.30 ppb
2014-06-1030419466.20 ppb
2014-06-1030419486.30 ppb
2014-06-1030419505.60 ppb
2014-06-1030419525.90 ppb
2014-06-1030419546.10 ppb
2014-06-1030419566.00 ppb
2014-06-1030419586.80 ppb
2014-06-1030419445.30 ppb
2014-06-1030419466.20 ppb
2014-06-1030419486.30 ppb
2014-06-1030419505.60 ppb
2014-06-1030419525.90 ppb
2014-06-1030419546.10 ppb
2014-06-1030419566.00 ppb
2014-06-1030419586.80 ppb
2014-12-0931533783.70 ppb
2014-12-0931533803.80 ppb
2014-12-0931533823.90 ppb
2014-12-0931533844.20 ppb
2014-12-0931533863.40 ppb
2014-12-0931533883.60 ppb
2014-12-0931533903.90 ppb
2014-12-0931533923.40 ppb
2014-12-0931533783.70 ppb
2014-12-0931533803.80 ppb
2014-12-0931533823.90 ppb
2014-12-0931533844.20 ppb
2014-12-0931533863.40 ppb
2014-12-0931533883.60 ppb
2014-12-0931533903.90 ppb
2014-12-0931533923.40 ppb
2015-03-1032035564.20 ppb
2015-03-1032035584.10 ppb
2015-03-1032035603.70 ppb
2015-03-1032035624.00 ppb
2015-03-1032035644.10 ppb
2015-03-1032035663.70 ppb
2015-03-1032035683.70 ppb
2015-03-1032035703.90 ppb
2015-03-1032035564.20 ppb
2015-03-1032035584.10 ppb
2015-03-1032035603.70 ppb
2015-03-1032035624.00 ppb
2015-03-1032035644.10 ppb
2015-03-1032035663.70 ppb
2015-03-1032035683.70 ppb
2015-03-1032035703.90 ppb
2015-06-0932580468.90 ppb
2015-06-0932580488.80 ppb
2015-06-0932580509.10 ppb
2015-06-0932580528.70 ppb
2015-06-0932580549.10 ppb
2015-06-0932580568.80 ppb
2015-06-0932580587.80 ppb
2015-06-0932580609.00 ppb
2015-06-0932580468.90 ppb
2015-06-0932580488.80 ppb
2015-06-0932580509.10 ppb
2015-06-0932580528.70 ppb
2015-06-0932580549.10 ppb
2015-06-0932580568.80 ppb
2015-06-0932580587.80 ppb
2015-06-0932580609.00 ppb
2015-09-14332011313.50 ppb
2015-09-14332011333.00 ppb
2015-09-14332011354.10 ppb
2015-09-14332011374.70 ppb
2015-09-14332011393.10 ppb
2015-09-14332011413.00 ppb
2015-09-14332011433.30 ppb
2015-09-14332011453.40 ppb
2015-09-14332011313.50 ppb
2015-09-14332011333.00 ppb
2015-09-14332011354.10 ppb
2015-09-14332011374.70 ppb
2015-09-14332011393.10 ppb
2015-09-14332011413.00 ppb
2015-09-14332011433.30 ppb
2015-09-14332011453.40 ppb
2015-12-0833711204.70 ppb
2015-12-0833711225.30 ppb
2015-12-0833711244.80 ppb
2015-12-0833711265.40 ppb
2015-12-0833711285.00 ppb
2015-12-0833711304.70 ppb
2015-12-0833711327.00 ppb
2015-12-0833711344.80 ppb
2015-12-0833711204.70 ppb
2015-12-0833711225.30 ppb
2015-12-0833711244.80 ppb
2015-12-0833711265.40 ppb
2015-12-0833711285.00 ppb
2015-12-0833711304.70 ppb
2015-12-0833711327.00 ppb
2015-12-0833711344.80 ppb
2016-03-0734107413.70 ppb
2016-03-0734107433.60 ppb
2016-03-0734107453.90 ppb
2016-03-0734107473.20 ppb
2016-03-0734107493.60 ppb
2016-03-0734107513.40 ppb
2016-03-0734107533.40 ppb
2016-03-0734107554.00 ppb
2016-03-0734107413.70 ppb
2016-03-0734107433.60 ppb
2016-03-0734107453.90 ppb
2016-03-0734107473.20 ppb
2016-03-0734107493.60 ppb
2016-03-0734107513.40 ppb
2016-03-0734107533.40 ppb
2016-03-0734107554.00 ppb
2016-06-1434715711.50 ppb
2016-06-1434715731.60 ppb
2016-06-1434715751.90 ppb
2016-06-1434715772.00 ppb
2016-06-1434715791.40 ppb
2016-06-1434715812.10 ppb
2016-06-1434715832.20 ppb
2016-06-1434715854.60 ppb
2016-06-1434715711.50 ppb
2016-06-1434715731.60 ppb
2016-06-1434715751.90 ppb
2016-06-1434715772.00 ppb
2016-06-1434715791.40 ppb
2016-06-1434715812.10 ppb
2016-06-1434715832.20 ppb
2016-06-1434715854.60 ppb
2016-09-1335444713.80 ppb
2016-09-1335444734.00 ppb
2016-09-1335444753.80 ppb
2016-09-1335444773.80 ppb
2016-09-1335444792.00 ppb
2016-09-1335444813.90 ppb
2016-09-1335444834.10 ppb
2016-09-1335444853.80 ppb
2016-09-1335444713.80 ppb
2016-09-1335444734.00 ppb
2016-09-1335444753.80 ppb
2016-09-1335444773.80 ppb
2016-09-1335444792.00 ppb
2016-09-1335444813.90 ppb
2016-09-1335444834.10 ppb
2016-09-1335444853.80 ppb
2016-12-1336044582.60 ppb
2016-12-1336044602.50 ppb
2016-12-1336044622.60 ppb
2016-12-1336044642.50 ppb
2016-12-1336044662.40 ppb
2016-12-1336044682.30 ppb
2016-12-1336044702.50 ppb
2016-12-1336044723.00 ppb
2016-12-1336044582.60 ppb
2016-12-1336044602.50 ppb
2016-12-1336044622.60 ppb
2016-12-1336044642.50 ppb
2016-12-1336044662.40 ppb
2016-12-1336044682.30 ppb
2016-12-1336044702.50 ppb
2016-12-1336044723.00 ppb
2017-03-17353014750032.50 ppb
2017-03-17353014750041.90 ppb
2017-03-17353014750052.00 ppb
2017-03-17353014750062.50 ppb
2017-03-17353014750072.40 ppb
2017-03-17353014750082.90 ppb
2017-03-17353014750093.10 ppb
2017-03-17353014750101.90 ppb
2017-03-17353014750032.50 ppb
2017-03-17353014750041.90 ppb
2017-03-17353014750052.00 ppb
2017-03-17353014750062.50 ppb
2017-03-17353014750072.40 ppb
2017-03-17353014750082.90 ppb
2017-03-17353014750093.10 ppb
2017-03-17353014750101.90 ppb
2017-06-02353157600111.40 ppb
2017-06-02353157600121.30 ppb
2017-06-02353157600130.620 ppb
2017-06-0235315760014ND
2017-06-0235315760015ND
2017-06-0235315760016ND
2017-06-0235315760017ND
2017-06-0235315760018ND
2017-06-02353157600111.40 ppb
2017-06-02353157600121.30 ppb
2017-06-02353157600130.620 ppb
2017-06-0235315760014ND
2017-06-0235315760015ND
2017-06-0235315760016ND
2017-06-0235315760017ND
2017-06-0235315760018ND
2017-09-15353358590014.00 ppb
2017-09-15353358590023.30 ppb
2017-09-15353358590033.40 ppb
2017-09-15353358590043.60 ppb
2017-09-15353358590054.40 ppb
2017-09-15353358590064.00 ppb
2017-09-15353358590073.70 ppb
2017-09-15353358590083.40 ppb
2017-09-15353358590014.00 ppb
2017-09-15353358590023.30 ppb
2017-09-15353358590033.40 ppb
2017-09-15353358590043.60 ppb
2017-09-15353358590054.40 ppb
2017-09-15353358590064.00 ppb
2017-09-15353358590073.70 ppb
2017-09-15353358590083.40 ppb
2017-12-01353607100012.90 ppb
2017-12-01353607100022.30 ppb
2017-12-01353607100032.40 ppb
2017-12-01353607100041.90 ppb
2017-12-01353607100051.90 ppb
2017-12-01353607100061.90 ppb
2017-12-01353607100071.80 ppb
2017-12-01353607100082.00 ppb
2017-12-01353607100012.90 ppb
2017-12-01353607100022.30 ppb
2017-12-01353607100032.40 ppb
2017-12-01353607100041.90 ppb
2017-12-01353607100051.90 ppb
2017-12-01353607100061.90 ppb
2017-12-01353607100071.80 ppb
2017-12-01353607100082.00 ppb
2018-03-27353825270018.30 ppb
2018-03-27353825270027.50 ppb
2018-03-27353825270038.80 ppb
2018-03-27353825270049.50 ppb
2018-03-27353825270058.80 ppb
2018-03-27353825270067.10 ppb
2018-03-27353825270075.90 ppb
2018-03-27353825270089.40 ppb
2018-03-27353825270018.30 ppb
2018-03-27353825270027.50 ppb
2018-03-27353825270038.80 ppb
2018-03-27353825270049.50 ppb
2018-03-27353825270058.80 ppb
2018-03-27353825270067.10 ppb
2018-03-27353825270075.90 ppb
2018-03-27353825270089.40 ppb
2018-06-07353972290015.60 ppb
2018-06-07353972290025.70 ppb
2018-06-07353972290035.40 ppb
2018-06-07353972290045.30 ppb
2018-06-07353972290055.60 ppb
2018-06-07353972290065.40 ppb
2018-06-07353972290076.20 ppb
2018-06-07353972290084.60 ppb
2018-06-07353972290015.60 ppb
2018-06-07353972290025.70 ppb
2018-06-07353972290035.40 ppb
2018-06-07353972290045.30 ppb
2018-06-07353972290055.60 ppb
2018-06-07353972290065.40 ppb
2018-06-07353972290076.20 ppb
2018-06-07353972290084.60 ppb
2018-09-13354178950013.60 ppb
2018-09-13354178950023.10 ppb
2018-09-13354178950033.20 ppb
2018-09-13354178950043.70 ppb
2018-09-13354178950053.50 ppb
2018-09-13354178950063.20 ppb
2018-09-13354178950073.20 ppb
2018-09-13354178950083.50 ppb
2018-09-13354178950013.60 ppb
2018-09-13354178950023.10 ppb
2018-09-13354178950033.20 ppb
2018-09-13354178950043.70 ppb
2018-09-13354178950053.50 ppb
2018-09-13354178950063.20 ppb
2018-09-13354178950073.20 ppb
2018-09-13354178950083.50 ppb
2018-12-05354358460017.00 ppb
2018-12-05354358460026.60 ppb
2018-12-05354358460036.80 ppb
2018-12-05354358460046.50 ppb
2018-12-05354358460056.80 ppb
2018-12-05354358460066.40 ppb
2018-12-05354358460077.00 ppb
2018-12-05354358460084.00 ppb
2018-12-05354358460017.00 ppb
2018-12-05354358460026.60 ppb
2018-12-05354358460036.80 ppb
2018-12-05354358460046.50 ppb
2018-12-05354358460056.80 ppb
2018-12-05354358460066.40 ppb
2018-12-05354358460077.00 ppb
2018-12-05354358460084.00 ppb
2019-03-01354518140016.60 ppb
2019-03-01354518140026.40 ppb
2019-03-01354518140036.00 ppb
2019-03-01354518140046.70 ppb
2019-03-01354518140056.20 ppb
2019-03-01354518140066.70 ppb
2019-03-01354518140075.30 ppb
2019-03-013545181400810.8 ppb
2019-03-01354518140016.60 ppb
2019-03-01354518140026.40 ppb
2019-03-01354518140036.00 ppb
2019-03-01354518140046.70 ppb
2019-03-01354518140056.20 ppb
2019-03-01354518140066.70 ppb
2019-03-01354518140075.30 ppb
2019-03-013545181400810.8 ppb
2019-03-22354570440016.00 ppb
2019-03-22354570440026.40 ppb
2019-03-22354570440016.00 ppb
2019-03-22354570440026.40 ppb
2019-06-133547566200110.00 ppb
2019-06-13354756620029.70 ppb
2019-06-133547566200310.5 ppb
2019-06-13354756620049.00 ppb
2019-06-13354756620059.80 ppb
2019-06-133547566200614.0 ppb
2019-06-133547566200714.5 ppb
2019-06-13354756620089.80 ppb
2019-06-133547566200110.00 ppb
2019-06-13354756620029.70 ppb
2019-06-133547566200310.5 ppb
2019-06-13354756620049.00 ppb
2019-06-13354756620059.80 ppb
2019-06-133547566200614.0 ppb
2019-06-133547566200714.5 ppb
2019-06-13354756620089.80 ppb
2019-07-023547970400115.5 ppb
2019-07-023547970400215.0 ppb
2019-07-023547970400313.5 ppb
2019-07-023547970400412.8 ppb
2019-07-023547970400514.0 ppb
2019-07-023547970400616.0 ppb
2019-07-023547970400716.0 ppb
2019-07-023547970400812.4 ppb
2019-07-023547970400115.5 ppb
2019-07-023547970400215.0 ppb
2019-07-023547970400313.5 ppb
2019-07-023547970400412.8 ppb
2019-07-023547970400514.0 ppb
2019-07-023547970400616.0 ppb
2019-07-023547970400716.0 ppb
2019-07-023547970400812.4 ppb
2019-09-113549730800111.0 ppb
2019-09-11354973080029.00 ppb
2019-09-113549730800311.8 ppb
2019-09-113549730800411.8 ppb
2019-09-113549730800511.8 ppb
2019-09-11354973080068.50 ppb
2019-09-11354973080077.30 ppb
2019-09-113549730800814.3 ppb
2019-09-113549730800111.0 ppb
2019-09-11354973080029.00 ppb
2019-09-113549730800311.8 ppb
2019-09-113549730800411.8 ppb
2019-09-113549730800511.8 ppb
2019-09-11354973080068.50 ppb
2019-09-11354973080077.30 ppb
2019-09-113549730800814.3 ppb
2019-09-27355011350018.20 ppb
2019-09-27355011350028.30 ppb
2019-09-27355011350038.10 ppb
2019-09-27355011350047.50 ppb
2019-09-27355011350058.00 ppb
2019-09-27355011350067.90 ppb
2019-09-27355011350077.70 ppb
2019-09-27355011350088.00 ppb
2019-09-27355011350018.20 ppb
2019-09-27355011350028.30 ppb
2019-09-27355011350038.10 ppb
2019-09-27355011350047.50 ppb
2019-09-27355011350058.00 ppb
2019-09-27355011350067.90 ppb
2019-09-27355011350077.70 ppb
2019-09-27355011350088.00 ppb
2019-12-03355166300013.30 ppb
2019-12-03355166300023.30 ppb
2019-12-03355166300033.00 ppb
2019-12-03355166300043.20 ppb
2019-12-03355166300053.30 ppb
2019-12-03355166300063.30 ppb
2019-12-03355166300073.20 ppb
2019-12-03355166300082.60 ppb
2019-12-03355166300013.30 ppb
2019-12-03355166300023.30 ppb
2019-12-03355166300033.00 ppb
2019-12-03355166300043.20 ppb
2019-12-03355166300053.30 ppb
2019-12-03355166300063.30 ppb
2019-12-03355166300073.20 ppb
2019-12-03355166300082.60 ppb