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EWG's Tap Water Database — 2021 UPDATE

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Monochloroacetic acid

Conway Water System

Monochloroacetic 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

 

186

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.175 ppb322ND - 2.90 ppb
20150.653 ppb328ND - 3.60 ppb
20161.31 ppb2513ND - 3.60 ppb
20171.03 ppb3213ND - 2.90 ppb
20181.23 ppb3314ND - 3.70 ppb
20192.19 ppb3225ND - 3.60 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 53 ppb

The EWG Health Guideline of 53 ppb for monochloroacetic 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.. This health guideline protects against system toxicity.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-1114044003701ND
2014-02-1114044003601ND
2014-02-1114044003801ND
2014-02-1114044003401ND
2014-02-1114044003901ND
2014-02-1114044003501ND
2014-03-1714079005101ND
2014-03-1714079005201ND
2014-04-2114114007201ND
2014-04-21141140078012.90 ppb
2014-04-21141140073012.70 ppb
2014-04-2114114007501ND
2014-04-2114114007701ND
2014-04-2114114007601ND
2014-04-2114114007401ND
2014-04-2114114007901ND
2014-07-2114205012201ND
2014-07-2114205011901ND
2014-07-2114205012501ND
2014-07-2114205012001ND
2014-07-2114205011601ND
2014-07-2114205012301ND
2014-07-2114205012401ND
2014-07-2114205012101ND
2014-10-2014295001201ND
2014-10-2014295001401ND
2014-10-2014295001001ND
2014-10-2014295001301ND
2014-10-2014295001101ND
2014-10-2014295000901ND
2014-10-2014295000801ND
2014-10-2014295000701ND
2015-01-2115022005901ND
2015-01-2115022005801ND
2015-01-2115022005601ND
2015-01-2115022005701ND
2015-01-2115022006001ND
2015-01-2115022005501ND
2015-01-2115022006101ND
2015-01-2115022005401ND
2015-04-2115113001601ND
2015-04-21151130017012.20 ppb
2015-04-2115113001401ND
2015-04-2115113002101ND
2015-04-21151130015012.30 ppb
2015-04-2115113002001ND
2015-04-2115113001901ND
2015-05-0415127005601ND
2015-07-29152110055012.10 ppb
2015-07-29152110050013.60 ppb
2015-07-2915211005401ND
2015-07-29152110051012.20 ppb
2015-07-29152110049013.60 ppb
2015-07-29152110053012.40 ppb
2015-07-29152110052012.50 ppb
2015-07-2915211005601ND
2015-10-1915295002801ND
2015-10-1915295002901ND
2015-10-1915295003001ND
2015-10-1915295002501ND
2015-10-1915295003201ND
2015-10-1915295002701ND
2015-10-1915295002601ND
2015-10-1915295003101ND
2016-02-0416036005301ND
2016-04-18161120099022.20 ppb
2016-04-1816112009802ND
2016-04-18161120100023.60 ppb
2016-04-1816112010102ND
2016-04-1816112010202ND
2016-04-1816112010302ND
2016-04-18161120104022.00 ppb
2016-04-1816112010502ND
2016-07-21162040037012.50 ppb
2016-07-2116204003401ND
2016-07-21162040033012.80 ppb
2016-07-21162040032013.20 ppb
2016-07-21162040031012.60 ppb
2016-07-21162040030012.20 ppb
2016-07-21162040036012.10 ppb
2016-07-2116204003501ND
2016-10-19162940074012.20 ppb
2016-10-19162940075012.60 ppb
2016-10-1916294007601ND
2016-10-19162940077012.60 ppb
2016-10-1916294007801ND
2016-10-1916294007901ND
2016-10-1916294008001ND
2016-10-19162940081012.10 ppb
2017-01-1617019005201ND
2017-01-1617019004801ND
2017-01-1617019004501ND
2017-01-1617019005001ND
2017-01-1617019004601ND
2017-01-1617019005101ND
2017-01-1617019004901ND
2017-01-1617019004701ND
2017-05-17171380026012.60 ppb
2017-05-1717138002901ND
2017-05-17171380025012.50 ppb
2017-05-17171380024012.90 ppb
2017-05-17171380023012.70 ppb
2017-05-17171380022012.80 ppb
2017-05-17171380027012.80 ppb
2017-05-17171380028012.70 ppb
2017-08-14172290068012.10 ppb
2017-08-14172290067012.20 ppb
2017-08-1417229006601ND
2017-08-14172290065012.90 ppb
2017-08-14172290063012.50 ppb
2017-08-14172290064012.00 ppb
2017-08-1417229006201ND
2017-08-1417229006901ND
2017-11-1317320004301ND
2017-11-1317320003701ND
2017-11-1317320003801ND
2017-11-1317320003901ND
2017-11-1317320004401ND
2017-11-1317320004201ND
2017-11-1317320004101ND
2017-11-13173200040012.30 ppb
2018-01-1518018001201ND
2018-01-1518018000401ND
2018-01-1518018000901ND
2018-01-15180180006012.10 ppb
2018-01-1518018000701ND
2018-01-1518018000801ND
2018-01-15180180005012.40 ppb
2018-02-1418045001401ND
2018-04-1618109009501ND
2018-04-1618109009801ND
2018-04-1618109009701ND
2018-04-1618109010001ND
2018-04-1618109010101ND
2018-04-1618109009901ND
2018-04-1618109010201ND
2018-04-1618109009601ND
2018-07-18182000057013.50 ppb
2018-07-18182000059013.10 ppb
2018-07-18182000056013.70 ppb
2018-07-18182000061013.20 ppb
2018-07-18182000060013.30 ppb
2018-07-18182000062013.40 ppb
2018-07-18182000058013.70 ppb
2018-07-18182000055013.40 ppb
2018-10-1518290000901ND
2018-10-1518290000701ND
2018-10-1518290000801ND
2018-10-1518290000501ND
2018-10-15182900003012.00 ppb
2018-10-1518290000401ND
2018-10-15182900002012.30 ppb
2018-11-20183250026012.30 ppb
2018-11-20183250027012.20 ppb
2019-02-11190450026013.20 ppb
2019-02-11190450027013.10 ppb
2019-02-1119045002501ND
2019-02-11190450021012.90 ppb
2019-02-11190450024012.40 ppb
2019-02-1119045002301ND
2019-02-1119045002201ND
2019-02-1119045002801ND
2019-05-01191220080012.60 ppb
2019-05-01191220079013.10 ppb
2019-05-01191220074012.00 ppb
2019-05-01191220076012.60 ppb
2019-05-01191220072012.90 ppb
2019-05-01191220078013.00 ppb
2019-05-01191220073012.90 ppb
2019-05-01191220075012.30 ppb
2019-08-05192200059013.10 ppb
2019-08-0519220005701ND
2019-08-0519220005801ND
2019-08-05192200054013.60 ppb
2019-08-0519220006001ND
2019-08-05192200056013.00 ppb
2019-08-05192200055013.30 ppb
2019-08-05192200053012.40 ppb
2019-11-18193250036012.10 ppb
2019-11-18193250035012.30 ppb
2019-11-18193250039012.90 ppb
2019-11-18193250040012.50 ppb
2019-11-18193250033013.00 ppb
2019-11-18193250037013.30 ppb
2019-11-18193250038012.90 ppb
2019-11-18193250034012.70 ppb