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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Erie County Water Authority (ECWA)

Dichloroacetic 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.

MORE ABOUT THIS CONTAMINANT

 

282

Samples

0

Samples exceeding legal limit (MCL)

279

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201411.1 ppb4847ND - 28.3 ppb
201511.1 ppb51513.90 ppb - 31.0 ppb
201611.0 ppb48483.34 ppb - 40.2 ppb
201710.7 ppb47473.00 ppb - 24.8 ppb
201810.6 ppb4847ND - 23.6 ppb
20199.33 ppb4039ND - 16.2 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2014-02-1620140216_52327.8 ppb
2014-02-1620140216_4915.72 ppb
2014-02-1620140216_340ND
2014-02-1620140216_53016.0 ppb
2014-02-1620140216_48421.1 ppb
2014-02-1620140216_43313.4 ppb
2014-02-1820140218_10478.16 ppb
2014-02-1820140218_4025.88 ppb
2014-02-1820140218_5276.86 ppb
2014-02-1820140218_39311.3 ppb
2014-02-1820140218_29128.3 ppb
2014-02-1820140218_3917.25 ppb
2014-05-192014051914.0 ppb
2014-05-1920140519_39313.0 ppb
2014-05-1920140519_39111.0 ppb
2014-05-1920140519_29114.0 ppb
2014-05-1920140519_40210.00 ppb
2014-05-1920140519_49111.0 ppb
2014-05-1920140519_53016.0 ppb
2014-05-1920140519_104712.0 ppb
2014-05-1920140519_5279.80 ppb
2014-05-1920140519_34011.0 ppb
2014-05-1920140519_52318.0 ppb
2014-05-1920140519_48421.0 ppb
2014-08-181408F19-0054.70 ppb
2014-08-181408F19-01315.0 ppb
2014-08-181408F19-0015.20 ppb
2014-08-181408F19-00412.0 ppb
2014-08-181408F19-02218.0 ppb
2014-08-181408F19-01712.0 ppb
2014-08-181408F19-00813.0 ppb
2014-08-181408F19-01113.0 ppb
2014-08-181408F19-02014.0 ppb
2014-08-181408F19-0165.90 ppb
2014-08-181408F19-0199.60 ppb
2014-08-181408F19-0075.60 ppb
2014-11-171412027-0197.20 ppb
2014-11-171412027-0149.10 ppb
2014-11-171412027-0123.20 ppb
2014-11-171412027-0099.10 ppb
2014-11-171412027-0136.30 ppb
2014-11-171412027-0026.30 ppb
2014-11-171412027-0104.00 ppb
2014-11-171412027-0014.10 ppb
2014-11-171412027-00519.0 ppb
2014-11-171412027-0077.30 ppb
2014-11-171412027-0175.20 ppb
2014-11-171412027-00412.0 ppb
2015-02-17523-2015021716.0 ppb
2015-02-17340-201502176.20 ppb
2015-02-17391-201502177.80 ppb
2015-02-17433-201502177.50 ppb
2015-02-171047-201502177.00 ppb
2015-02-17291-201502175.30 ppb
2015-02-17527-201502177.00 ppb
2015-02-17393-201502178.30 ppb
2015-02-17491-201502176.30 ppb
2015-02-17402-201502174.50 ppb
2015-02-17484-2015021726.0 ppb
2015-02-18530-2015021811.0 ppb
2015-05-1820150518-A11.0 ppb
2015-05-18340616W17.0 ppb
2015-05-18340616L11.0 ppb
2015-05-18340616A9.70 ppb
2015-05-18340616R28.0 ppb
2015-05-18340616B14.0 ppb
2015-05-18340616F12.0 ppb
2015-05-1834066BA10.00 ppb
2015-05-1834061612.0 ppb
2015-05-18340616ED18.0 ppb
2015-05-18340616N11.0 ppb
2015-05-182015051810.00 ppb
2015-05-18340616TR17.0 ppb
2015-05-1820150518-B9.70 ppb
2015-05-18340616M12.0 ppb
2015-08-20347018-212.0 ppb
2015-08-20347018-15.20 ppb
2015-08-21347018-431.0 ppb
2015-08-21347018-612.0 ppb
2015-08-21347018-107.10 ppb
2015-08-21347018-76.70 ppb
2015-08-21347018-95.20 ppb
2015-08-21347018-317.0 ppb
2015-08-21347018-57.10 ppb
2015-08-21347018-1211.0 ppb
2015-08-21347018-83.90 ppb
2015-08-21347018-1111.0 ppb
2015-11-1611/16/2015-48421.0 ppb
2015-11-1611/16/2015-5239.00 ppb
2015-11-1611/16/2015-34012.0 ppb
2015-11-1611/16/2015-53013.0 ppb
2015-11-1611/16/2015-29110.00 ppb
2015-11-1611/16/2015-4334.80 ppb
2015-11-1611/16/2015-49111.0 ppb
2015-11-1611/16/2015-3935.90 ppb
2015-11-1611/16/2015-40213.0 ppb
2015-11-1611/16/2015-10476.70 ppb
2015-11-1611/16/2015-3914.20 ppb
2015-11-1611/16/2015-5279.80 ppb
2016-02-1602/16/2016-5277.10 ppb
2016-02-1602/16/2016-39111.0 ppb
2016-02-1602/16/2016-48423.0 ppb
2016-02-1602/16/2016-2915.60 ppb
2016-02-1602/16/2016-4026.20 ppb
2016-02-1602/16/2016-104714.0 ppb
2016-02-1602/16/2016-3939.10 ppb
2016-02-1702/17/2016-53013.0 ppb
2016-02-1702/17/2016-52313.0 ppb
2016-02-1802/18/2016-3405.50 ppb
2016-02-1802/18/2016-4916.70 ppb
2016-02-1802/18/2016-4339.00 ppb
2016-05-1605/16/2016-2916.20 ppb
2016-05-1605/16/2016-48425.0 ppb
2016-05-1605/16/2016-5277.60 ppb
2016-05-1605/16/2016-3918.70 ppb
2016-05-1605/16/2016-43313.0 ppb
2016-05-1605/16/2016-10476.90 ppb
2016-05-1605/16/2016-52317.0 ppb
2016-05-1605/16/2016-4027.20 ppb
2016-05-1605/16/2016-53013.0 ppb
2016-05-1605/16/2016-4917.00 ppb
2016-05-1605/16/2016-3405.90 ppb
2016-05-1605/16/2016-3939.90 ppb
2016-08-151608H81-0013.34 ppb
2016-08-151608H81-00913.7 ppb
2016-08-151608H81-01216.7 ppb
2016-08-151608H81-01440.2 ppb
2016-08-151608H81-00518.8 ppb
2016-08-151608H81-0085.02 ppb
2016-08-151608H81-0105.82 ppb
2016-08-151608H81-0034.07 ppb
2016-08-151608H81-0026.02 ppb
2016-08-151608H81-01328.3 ppb
2016-08-151608H81-00714.0 ppb
2016-08-151608H81-01518.4 ppb
2016-11-147049560015.30 ppb
2016-11-147049560137.50 ppb
2016-11-147046560045.60 ppb
2016-11-147053350019.80 ppb
2016-11-1470495602011.4 ppb
2016-11-147049560104.80 ppb
2016-11-147049560148.70 ppb
2016-11-147049560087.80 ppb
2016-11-147049560116.10 ppb
2016-11-1470495600710.8 ppb
2016-11-1470495600215.5 ppb
2016-11-147049560179.50 ppb
2017-02-21701195601510.8 ppb
2017-02-2170119560198.60 ppb
2017-02-21701195600422.9 ppb
2017-02-2170119560028.70 ppb
2017-02-2170119560218.10 ppb
2017-02-21701195600111.1 ppb
2017-02-21701195600724.2 ppb
2017-02-2170119560128.40 ppb
2017-02-21701195601412.2 ppb
2017-02-2170119560097.80 ppb
2017-02-2170119560169.10 ppb
2017-05-15AUTO INF 51520179.80 ppb
2017-05-15TOPS MRKT 5152018.10 ppb
2017-05-15WOHLHUETER 515215.2 ppb
2017-05-153330 BAKER 515204.60 ppb
2017-05-15MARILLA STAT 5158.20 ppb
2017-05-15RICE HILL 51520118.2 ppb
2017-05-15FELLOW BAP 5152013.4 ppb
2017-05-15NAPA AUTO 5152019.00 ppb
2017-05-15TREVETT TANK 51516.6 ppb
2017-05-16BENNING TANK 51611.6 ppb
2017-05-16LACK FIRE 2 51628.00 ppb
2017-08-1470273240054.40 ppb
2017-08-1470273240035.50 ppb
2017-08-14702731900217.6 ppb
2017-08-14702731800224.8 ppb
2017-08-14702731800711.9 ppb
2017-08-14702731800114.1 ppb
2017-08-1470273240015.50 ppb
2017-08-1470273180049.20 ppb
2017-08-1470273240046.00 ppb
2017-08-14702731900416.5 ppb
2017-08-15702732400915.7 ppb
2017-08-15702732400811.0 ppb
2017-12-0170371420188.70 ppb
2017-12-0170371420135.10 ppb
2017-12-0170371420206.40 ppb
2017-12-0170371420145.50 ppb
2017-12-0170371420015.10 ppb
2017-12-0170371420025.30 ppb
2017-12-0170371420163.00 ppb
2017-12-0170371420177.60 ppb
2017-12-0170371420097.40 ppb
2017-12-01703714201117.7 ppb
2017-12-01703714200312.6 ppb
2017-12-01703714200414.2 ppb
2017-12-0170371420078.50 ppb
2018-02-1270428860085.90 ppb
2018-02-12704288601117.5 ppb
2018-02-12704288600510.6 ppb
2018-02-1270428860106.80 ppb
2018-02-1270428860195.60 ppb
2018-02-12704288600110.1 ppb
2018-02-1270428860126.00 ppb
2018-02-1270428860039.20 ppb
2018-02-12704288601414.1 ppb
2018-02-12704288602120.1 ppb
2018-02-12704288601711.4 ppb
2018-02-12704288600410.1 ppb
2018-05-14ECWA9 DBP 2ND Q10.7 ppb
2018-05-14ECWA12 DBP 2ND Q12.8 ppb
2018-05-14ECWA7 DBP 2ND Q12.5 ppb
2018-05-14ECWA10 DBP 2ND Q10.9 ppb
2018-05-14ECWA 3 DBP 2ND Q8.50 ppb
2018-05-14ECWA 1 DBP 2ND Q23.6 ppb
2018-05-14ECWA 6 DBP 2ND Q10.4 ppb
2018-05-14ECWA 4 DBP 2ND Q14.5 ppb
2018-05-14ECWA 5 DBP 2ND Q8.60 ppb
2018-05-14ECWA 2 DBP 2ND Q22.0 ppb
2018-05-15ECWA11 DBP 2ND Q11.1 ppb
2018-05-16ECWA8 DBP 2ND Q14.2 ppb
2018-08-13DBP2 ECWA 3RD Q5.90 ppb
2018-08-13DBP2 ECWA 3RDQ 19.00 ppb
2018-08-13DBP2 ECWA 3RD Q120.8 ppb
2018-08-13DBP2 ECWA 3RDQ 119.7 ppb
2018-08-13DBP2 ECWA 3RDQ 19.10 ppb
2018-08-13DBP 2 ECWA 3RDQ9.20 ppb
2018-08-13DBP2 ECWA 3RDQ18ND
2018-08-13DBP2 ECWA 3RDQ 19.40 ppb
2018-08-13DBP 2 ECWA 3RDQ18.40 ppb
2018-08-13DBP 2 ECWA 3RDQ9.20 ppb
2018-08-13DBP2 ECWA 3RD Q19.10 ppb
2018-08-13DBP 2 ECWA 3RD Q13.6 ppb
2018-12-04ECWA DBP 4TH Q 111.8 ppb
2018-12-04ECWA DBP2 4THQ 16.24 ppb
2018-12-04DBP2 ECWA 4THQ 15.29 ppb
2018-12-04ECWA DBP2 4THQ 17.04 ppb
2018-12-04ECWA DBP 4THQ 188.06 ppb
2018-12-04ECWA DBP 4THQ 188.04 ppb
2018-12-04ECWA 4TH Q 18 129.32 ppb
2018-12-04ECWA DBP2 4THQ186.82 ppb
2018-12-04ECWA DBP 4THQ 189.53 ppb
2018-12-04ECWA DBP 4TH Q 111.0 ppb
2018-12-04ECWA DBP 4THQ 187.01 ppb
2018-12-04ECWA DBP 4THQ 186.75 ppb
2019-02-19SITE 393 DBP 1ST7.82 ppb
2019-02-19SITE 402 DBP 1ST7.24 ppb
2019-02-19527 DBP 1ST Q 196.23 ppb
2019-02-19SITE 340 1ST Q 27.03 ppb
2019-02-191047 DBP 1ST Q 17.88 ppb
2019-02-19433 DBP 1ST Q 199.23 ppb
2019-02-19491 DBP 1ST Q 197.56 ppb
2019-02-19523 DBP 1ST Q 1913.5 ppb
2019-02-19SITE 391 DBP 1ST7.36 ppb
2019-02-19484 DBP 1ST Q 1916.2 ppb
2019-02-19530 DBP 1ST Q 1910.2 ppb
2019-02-19DBP 1ST Q 2916.54 ppb
2019-05-21393 DBP 2ND Q 1913.9 ppb
2019-05-211047 DBP 2ND Q 114.8 ppb
2019-06-20402 DBP 2ND Q 19ND
2019-06-20340 DBP 2ND Q 1910.8 ppb
2019-08-27393 3RD Q 19 DBP4.29 ppb
2019-08-27530 3RD Q 19 DBP9.71 ppb
2019-08-27527 3RD Q 19 DBP5.46 ppb
2019-08-275223 3RD Q 19 DB8.05 ppb
2019-08-27484 3RD Q 19 DBP11.9 ppb
2019-08-27402 3RD Q 19 DBP15.2 ppb
2019-08-27391 3RD Q 193.71 ppb
2019-08-27340 3RD Q 19 DBP12.1 ppb
2019-08-271047 3RD Q 19 DB14.1 ppb
2019-08-27491 3RD Q 19 DBP13.3 ppb
2019-08-27291 3RD Q 19 DBP7.68 ppb
2019-08-27433 3RD Q 19 DBP4.08 ppb
2019-11-19393 DBP 4TH Q10.1 ppb
2019-11-19340 4TH Q DBP11.4 ppb
2019-11-191047 4TH Q 19 DB9.06 ppb
2019-11-19402 4TH Q 2019 D10.1 ppb
2019-11-19491 4TH Q 19 DBP8.94 ppb
2019-11-19530 4TH Q 19 DBP9.45 ppb
2019-11-19484 4TH Q 19 DBP10.2 ppb
2019-11-19291 DBP 4TH Q11.3 ppb
2019-11-19391 DBP 4TH Q8.94 ppb
2019-11-19523 4TH Q 19 DBP8.88 ppb
2019-11-19433 4TH Q 2019 D8.08 ppb
2019-11-19527 4TH Q 19 DBP10.7 ppb