Know Your Environment. Protect Your Health.

Dichloroacetic acid

New Orleans Carrollton Waterworks

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.

 

386

Samples

0

Samples exceeding legal limit (MCL)

371

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201822.3 ppb96969.90 ppb - 37.6 ppb
201915.9 ppb9682ND - 33.1 ppb
202012.1 ppb48486.00 ppb - 14.3 ppb
202115.4 ppb494910.5 ppb - 22.0 ppb
202214.9 ppb49497.50 ppb - 20.4 ppb
202311.5 ppb4847ND - 17.2 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic acid was defined by the California Office of Environmental Health Hazard Assessment's public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer and harm to reproduction and child development.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-243537049400119.9 ppb
2018-01-243537049400224.2 ppb
2018-01-243537049400321.1 ppb
2018-01-243537049400421.7 ppb
2018-01-243537049400521.7 ppb
2018-01-243537049400619.6 ppb
2018-01-243537049400119.9 ppb
2018-01-243537049400224.2 ppb
2018-01-243537049400321.1 ppb
2018-01-243537049400421.7 ppb
2018-01-243537049400521.7 ppb
2018-01-243537049400619.6 ppb
2018-01-293537104500112.3 ppb
2018-01-293537104500210.6 ppb
2018-01-293537104500311.3 ppb
2018-01-293537104500410.3 ppb
2018-01-293537104500510.9 ppb
2018-01-29353710450069.90 ppb
2018-01-293537104500112.3 ppb
2018-01-293537104500210.6 ppb
2018-01-293537104500311.3 ppb
2018-01-293537104500410.3 ppb
2018-01-293537104500510.9 ppb
2018-01-29353710450069.90 ppb
2018-04-163538763900128.6 ppb
2018-04-163538763900128.6 ppb
2018-04-173538764000114.9 ppb
2018-04-173538764000215.9 ppb
2018-04-173538764000515.8 ppb
2018-04-173538764000715.9 ppb
2018-04-173538764000114.9 ppb
2018-04-173538764000215.9 ppb
2018-04-173538764000515.8 ppb
2018-04-173538764000715.9 ppb
2018-04-183538764100124.2 ppb
2018-04-183538764100124.2 ppb
2018-04-193538764000323.3 ppb
2018-04-193538764000425.0 ppb
2018-04-193538764000637.6 ppb
2018-04-193538764000823.5 ppb
2018-04-193538764000925.8 ppb
2018-04-193538764100225.1 ppb
2018-04-193538764000323.3 ppb
2018-04-193538764000425.0 ppb
2018-04-193538764000637.6 ppb
2018-04-193538764000823.5 ppb
2018-04-193538764000925.8 ppb
2018-04-193538764100225.1 ppb
2018-07-253540710900116.3 ppb
2018-07-253540710900321.8 ppb
2018-07-253540710900432.6 ppb
2018-07-253540710900521.6 ppb
2018-07-253540710900720.7 ppb
2018-07-253540710901036.5 ppb
2018-07-253540710901121.5 ppb
2018-07-253540710901220.2 ppb
2018-07-253540710900116.3 ppb
2018-07-253540710900321.8 ppb
2018-07-253540710900432.6 ppb
2018-07-253540710900521.6 ppb
2018-07-253540710900720.7 ppb
2018-07-253540710901036.5 ppb
2018-07-253540710901121.5 ppb
2018-07-253540710901220.2 ppb
2018-07-263540710900237.4 ppb
2018-07-263540710900623.7 ppb
2018-07-263540710900820.8 ppb
2018-07-263540710900919.7 ppb
2018-07-263540710900237.4 ppb
2018-07-263540710900623.7 ppb
2018-07-263540710900820.8 ppb
2018-07-263540710900919.7 ppb
2018-10-163542509600117.9 ppb
2018-10-163542509600225.3 ppb
2018-10-163542509600326.6 ppb
2018-10-163542509601126.7 ppb
2018-10-163542509601225.1 ppb
2018-10-163542509600117.9 ppb
2018-10-163542509600225.3 ppb
2018-10-163542509600326.6 ppb
2018-10-163542509601126.7 ppb
2018-10-163542509601225.1 ppb
2018-10-173542509600423.4 ppb
2018-10-173542509600528.8 ppb
2018-10-173542509600626.1 ppb
2018-10-173542509600728.3 ppb
2018-10-173542509600827.8 ppb
2018-10-173542509600926.5 ppb
2018-10-173542509601025.7 ppb
2018-10-173542509600423.4 ppb
2018-10-173542509600528.8 ppb
2018-10-173542509600626.1 ppb
2018-10-173542509600728.3 ppb
2018-10-173542509600827.8 ppb
2018-10-173542509600926.5 ppb
2018-10-173542509601025.7 ppb
2019-01-163544288300111.6 ppb
2019-01-163544288300210.4 ppb
2019-01-163544288300311.0 ppb
2019-01-163544288300410.8 ppb
2019-01-163544288300518.5 ppb
2019-01-163544289100116.4 ppb
2019-01-163544288300111.6 ppb
2019-01-163544288300210.4 ppb
2019-01-163544288300311.0 ppb
2019-01-163544288300410.8 ppb
2019-01-163544288300518.5 ppb
2019-01-163544289100116.4 ppb
2019-01-173544316900113.8 ppb
2019-01-173544316900212.1 ppb
2019-01-173544316900314.6 ppb
2019-01-173544316900416.4 ppb
2019-01-173544316900512.8 ppb
2019-01-173544316900614.5 ppb
2019-01-173544316900113.8 ppb
2019-01-173544316900212.1 ppb
2019-01-173544316900314.6 ppb
2019-01-173544316900416.4 ppb
2019-01-173544316900512.8 ppb
2019-01-173544316900614.5 ppb
2019-04-2435464347001ND
2019-04-2435464347002ND
2019-04-2435464347003ND
2019-04-2435464347004ND
2019-04-2435464347005ND
2019-04-2435464347006ND
2019-04-2435464347007ND
2019-04-243546434700816.4 ppb
2019-04-243546434700915.0 ppb
2019-04-243546434701017.1 ppb
2019-04-243546434701116.8 ppb
2019-04-243546434701224.5 ppb
2019-04-2435464347001ND
2019-04-2435464347002ND
2019-04-2435464347003ND
2019-04-2435464347004ND
2019-04-2435464347005ND
2019-04-2435464347006ND
2019-04-2435464347007ND
2019-04-243546434700816.4 ppb
2019-04-243546434700915.0 ppb
2019-04-243546434701017.1 ppb
2019-04-243546434701116.8 ppb
2019-04-243546434701224.5 ppb
2019-07-183548377600119.9 ppb
2019-07-183548377600225.3 ppb
2019-07-183548377600326.7 ppb
2019-07-183548377600422.3 ppb
2019-07-183548377600533.1 ppb
2019-07-183548377600626.9 ppb
2019-07-183548377600729.6 ppb
2019-07-183548377600826.2 ppb
2019-07-183548377600929.3 ppb
2019-07-183548377601024.0 ppb
2019-07-183548377601127.4 ppb
2019-07-183548377601227.5 ppb
2019-07-183548377600119.9 ppb
2019-07-183548377600225.3 ppb
2019-07-183548377600326.7 ppb
2019-07-183548377600422.3 ppb
2019-07-183548377600533.1 ppb
2019-07-183548377600626.9 ppb
2019-07-183548377600729.6 ppb
2019-07-183548377600826.2 ppb
2019-07-183548377600929.3 ppb
2019-07-183548377601024.0 ppb
2019-07-183548377601127.4 ppb
2019-07-183548377601227.5 ppb
2019-10-163550576400116.9 ppb
2019-10-163550576400214.7 ppb
2019-10-163550576400315.8 ppb
2019-10-163550576400417.5 ppb
2019-10-163550576400516.2 ppb
2019-10-163550576400617.5 ppb
2019-10-163550576400716.0 ppb
2019-10-163550576400815.1 ppb
2019-10-163550576400915.2 ppb
2019-10-163550576401016.6 ppb
2019-10-163550576401116.4 ppb
2019-10-163550576401215.5 ppb
2019-10-163550576400116.9 ppb
2019-10-163550576400214.7 ppb
2019-10-163550576400315.8 ppb
2019-10-163550576400417.5 ppb
2019-10-163550576400516.2 ppb
2019-10-163550576400617.5 ppb
2019-10-163550576400716.0 ppb
2019-10-163550576400815.1 ppb
2019-10-163550576400915.2 ppb
2019-10-163550576401016.6 ppb
2019-10-163550576401116.4 ppb
2019-10-163550576401215.5 ppb
2020-01-243552647500114.1 ppb
2020-01-243552647500211.5 ppb
2020-01-243552647500310.6 ppb
2020-01-243552647500411.8 ppb
2020-01-243552647500510.6 ppb
2020-01-243552647500611.3 ppb
2020-01-243552647500711.0 ppb
2020-01-243552647500810.3 ppb
2020-01-243552647500910.7 ppb
2020-01-243552647501013.2 ppb
2020-01-243552647501112.9 ppb
2020-01-243552647501210.8 ppb
2020-04-163554454600112.5 ppb
2020-04-163554454600213.2 ppb
2020-04-163554454600312.5 ppb
2020-04-163554454600413.3 ppb
2020-04-163554454600511.7 ppb
2020-04-163554454600611.9 ppb
2020-04-163554454600712.2 ppb
2020-04-163554454600811.5 ppb
2020-04-163554455000111.2 ppb
2020-04-163554455000213.1 ppb
2020-04-163554455000313.0 ppb
2020-04-163554455000411.1 ppb
2020-07-283556680700113.2 ppb
2020-07-283556680700213.4 ppb
2020-07-283556680700313.5 ppb
2020-07-283556680700412.1 ppb
2020-07-283556680700513.8 ppb
2020-07-283556680700614.3 ppb
2020-07-283556680700714.2 ppb
2020-07-283556680700813.3 ppb
2020-07-283556680700913.9 ppb
2020-07-283556680701013.4 ppb
2020-07-283556680701113.6 ppb
2020-07-283556680701213.3 ppb
2020-10-303558916000111.7 ppb
2020-10-30355891600026.00 ppb
2020-10-303558916000311.2 ppb
2020-10-303558916000412.0 ppb
2020-10-303558916000511.7 ppb
2020-10-303558916000611.4 ppb
2020-10-303558916000711.0 ppb
2020-10-303558916000812.7 ppb
2020-10-303558916000910.8 ppb
2020-10-303558916001011.6 ppb
2020-10-303558916001112.0 ppb
2020-10-303558916001210.5 ppb
2021-01-273560808800112.8 ppb
2021-01-273560808800211.3 ppb
2021-01-273560808800311.3 ppb
2021-01-273560808800411.1 ppb
2021-01-273560808800510.7 ppb
2021-01-273560808800611.0 ppb
2021-01-273560808800710.5 ppb
2021-01-273560808800810.6 ppb
2021-01-273560808800910.9 ppb
2021-01-273560808801011.0 ppb
2021-01-273560808801110.6 ppb
2021-01-273560808801210.9 ppb
2021-04-293562992300120.9 ppb
2021-04-293562992300219.9 ppb
2021-04-293562992300318.9 ppb
2021-04-293562992300420.6 ppb
2021-04-293562992300518.3 ppb
2021-04-293562992300618.5 ppb
2021-04-293562992300716.5 ppb
2021-04-293562992300819.1 ppb
2021-04-293562992300917.8 ppb
2021-04-293562992301019.6 ppb
2021-04-293562992301119.0 ppb
2021-04-293562992301218.4 ppb
2021-07-283565173800112.5 ppb
2021-07-283565173800218.7 ppb
2021-07-283565173800320.9 ppb
2021-07-283565173800419.3 ppb
2021-07-283565173800521.1 ppb
2021-07-283565173800621.0 ppb
2021-07-283565173800720.8 ppb
2021-07-283565173800821.0 ppb
2021-07-283565173800922.0 ppb
2021-07-283565173801017.3 ppb
2021-07-283565173801120.6 ppb
2021-07-283565173801219.6 ppb
2021-09-163566417400114.0 ppb
2021-10-213567371400113.4 ppb
2021-10-213567371400213.0 ppb
2021-10-213567371400311.7 ppb
2021-10-213567371400413.3 ppb
2021-10-213567371400511.9 ppb
2021-10-213567371400612.6 ppb
2021-10-213567371400712.0 ppb
2021-10-213567371400811.4 ppb
2021-10-213567371400912.8 ppb
2021-10-213567371401011.4 ppb
2021-10-213567371401112.0 ppb
2021-10-213567371401211.4 ppb
2022-01-28356937740019.80 ppb
2022-01-283569377400210.00 ppb
2022-01-28356937740037.50 ppb
2022-01-28356937740048.40 ppb
2022-01-28356937740057.90 ppb
2022-01-28356937740069.10 ppb
2022-01-28356937740077.80 ppb
2022-01-28356937740087.90 ppb
2022-01-28356937740098.20 ppb
2022-01-28356937740108.90 ppb
2022-02-04356965670019.90 ppb
2022-02-04356965670028.80 ppb
2022-04-133571151200117.9 ppb
2022-04-133571151200217.3 ppb
2022-04-133571151200316.5 ppb
2022-04-133571151200416.9 ppb
2022-04-133571151200517.7 ppb
2022-04-133571151200618.2 ppb
2022-04-133571151200717.0 ppb
2022-04-133571151200815.9 ppb
2022-04-133571151200915.2 ppb
2022-04-133571151201015.3 ppb
2022-04-133571151400118.0 ppb
2022-04-133571151400214.6 ppb
2022-07-2635734960 00420.4 ppb
2022-07-263573496000113.3 ppb
2022-07-263573496000220.2 ppb
2022-07-263573496000319.6 ppb
2022-07-263573496000420.4 ppb
2022-07-263573496000519.3 ppb
2022-07-263573496000619.8 ppb
2022-07-263573496000720.2 ppb
2022-07-263573496000819.0 ppb
2022-07-263573496001019.5 ppb
2022-07-263573496001120.4 ppb
2022-07-263573496001218.7 ppb
2022-08-233574199700115.4 ppb
2022-10-213575554800113.9 ppb
2022-10-213575554800214.3 ppb
2022-10-213575554800314.9 ppb
2022-10-213575554800414.9 ppb
2022-10-213575554800514.1 ppb
2022-10-213575554800613.8 ppb
2022-10-213575554800716.9 ppb
2022-10-213575554800816.5 ppb
2022-10-213575554800917.0 ppb
2022-10-213575554801014.9 ppb
2022-10-213575554801115.7 ppb
2022-10-213575554801213.8 ppb
2023-01-123577259700112.2 ppb
2023-01-123577259700211.5 ppb
2023-01-12357725970039.90 ppb
2023-01-123577259700410.00 ppb
2023-01-123577259700510.00 ppb
2023-01-123577259700610.5 ppb
2023-01-123577259700710.2 ppb
2023-01-123577259700810.1 ppb
2023-01-12357725970099.60 ppb
2023-01-123577259701013.0 ppb
2023-01-123577259701212.4 ppb
2023-01-303577603200114.0 ppb
2023-04-143579329900113.8 ppb
2023-04-143579329900212.2 ppb
2023-04-143579329900315.9 ppb
2023-04-143579329900513.5 ppb
2023-04-143579329900613.8 ppb
2023-04-143579329900712.6 ppb
2023-04-143579329900813.9 ppb
2023-04-143579329900912.1 ppb
2023-04-143579329901013.2 ppb
2023-04-143579330300114.2 ppb
2023-04-143579330300214.9 ppb
2023-04-263579557800117.2 ppb
2023-07-20358148400018.70 ppb
2023-07-203581484000214.4 ppb
2023-07-203581484000312.5 ppb
2023-07-203581484000413.1 ppb
2023-07-203581484000514.3 ppb
2023-07-203581484000613.4 ppb
2023-07-203581484000712.9 ppb
2023-07-203581484000813.4 ppb
2023-07-203581484000913.8 ppb
2023-07-203581484001013.7 ppb
2023-07-203581484001116.6 ppb
2023-07-203581484001213.2 ppb
2023-10-19358360470018.30 ppb
2023-10-193583604700210.8 ppb
2023-10-19358360470039.60 ppb
2023-10-19358360470048.00 ppb
2023-10-19358360470058.70 ppb
2023-10-19358360470067.90 ppb
2023-10-19358360470077.60 ppb
2023-10-19358360470087.70 ppb
2023-10-1935836047009ND
2023-10-193583604701010.9 ppb
2023-10-19358360470112.80 ppb
2023-10-19358360470129.80 ppb