Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Haloacetic acids (HAA5)

Lincoln Avenue Water Company

Haloacetic acids are formed when disinfectants such as chlorine are added to tap water. The group of five haloacetic acids regulated by federal standards includes monochloroacetic acid, dichloroacetic acid, trichloroacetic acid, monobromoacetic acid and dibromoacetic acid. Read More.

Haloacetic acids are harmful during pregnancy and may increase the risk of cancer. Haloacetic acids are genotoxic, which means that they induce mutations and DNA damage. Multiple studies by the National Toxicology Program have demonstrated the cancer-causing properties of individual haloacetic acids in laboratory animals. The Department of Health and Human Services is currently considering listing di- or tri-haloacetic acids for possible inclusion in its comprehensive Report on Carcinogens.

Click here to read more about disinfection byproducts.

 

93

Samples

0

Samples exceeding legal limit (MCL)

57

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20123.92 ppb128ND - 10.1 ppb
20132.09 ppb168ND - 8.00 ppb
20142.51 ppb1610ND - 8.30 ppb
20152.99 ppb1610ND - 15.8 ppb
20164.63 ppb1610ND - 12.0 ppb
201715.3 ppb1711ND - 43.4 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 the group of five haloacetic acids, or HAA5, was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 60 ppb

The legal limit for the group of five haloacetic acids (HAA5), established in 1998, was based on the need for residual disinfectant levels in water served to customers and the cost of treatment. This limit does not fully protect against the risk of cancer and harm to the developing fetus due to exposure to haloacetic acids.

ppb = parts per billion

All test results

Date Lab ID Result
2012-04-033761-802-1220ND
2012-04-033761-800-1120ND
2012-04-033761-801-1100ND
2012-04-033761-803-1310ND
2012-07-033761-802-11407.10 ppb
2012-07-033761-801-09557.20 ppb
2012-07-033761-803-09202.90 ppb
2012-07-033761-800-10153.20 ppb
2012-10-023761-802-111510.1 ppb
2012-10-023761-801-09055.80 ppb
2012-10-023761-803-11556.10 ppb
2012-10-023761-800-09304.60 ppb
2013-01-023761-800-1022ND
2013-01-023761-802-1150ND
2013-01-023761-801-0958ND
2013-01-023761-803-1215ND
2013-04-023761-803-1255ND
2013-04-023761-800-1035ND
2013-04-023761-802-1205ND
2013-04-023761-801-1005ND
2013-07-023761-800-09553.10 ppb
2013-07-023761-802-10558.00 ppb
2013-07-023761-803-12001.30 ppb
2013-07-023761-801-10107.50 ppb
2013-10-013761-801-09555.40 ppb
2013-10-013761-802-11301.90 ppb
2013-10-013761-800-10053.10 ppb
2013-10-013761-803-12353.20 ppb
2014-01-073761-800-1010ND
2014-01-073761-803-1205ND
2014-01-073761-801-0935ND
2014-01-073761-802-1135ND
2014-05-223761-801-09053.60 ppb
2014-05-223761-803-0815ND
2014-05-223761-802-09302.70 ppb
2014-05-223761-800-0845ND
2014-07-013761-801-09508.30 ppb
2014-07-013761-802-12106.00 ppb
2014-07-013761-803-12401.30 ppb
2014-07-013761-800-10501.40 ppb
2014-10-073761-801-10555.50 ppb
2014-10-073761-800-11103.90 ppb
2014-10-073761-803-12303.40 ppb
2014-10-073761-802-11184.00 ppb
2015-01-063761-803-1230ND
2015-01-063761-802-1155ND
2015-01-063761-801-0955ND
2015-01-063761-800-10151.40 ppb
2015-04-073761-800-11151.20 ppb
2015-04-073761-801-10451.50 ppb
2015-04-073761-802-12401.10 ppb
2015-04-073761-803-1305ND
2015-07-073761-800-1110ND
2015-07-073761-801-11353.00 ppb
2015-07-073761-802-09402.80 ppb
2015-07-073761-803-1230ND
2015-10-073761-801-09355.00 ppb
2015-10-073761-803-115015.8 ppb
2015-10-073761-800-095511.0 ppb
2015-10-073761-802-11155.10 ppb
2016-01-053761-802-12359.40 ppb
2016-01-053761-801-10254.50 ppb
2016-01-053761-800-1105ND
2016-01-053761-803-1315ND
2016-04-053761-801-0940ND
2016-04-053761-802-1040ND
2016-04-053761-800-1010ND
2016-04-053761-803-1100ND
2016-07-053761-803-13008.30 ppb
2016-07-053761-801-104512.0 ppb
2016-07-053761-800-111010.2 ppb
2016-07-053761-802-12158.70 ppb
2016-10-043761-800-10153.50 ppb
2016-10-043761-803-12003.60 ppb
2016-10-043761-801-10005.60 ppb
2016-10-043761-802-11358.30 ppb
2017-01-033761-803-1200ND
2017-01-033761-800-1005ND
2017-01-033761-802-1125ND
2017-01-033761-801-0950ND
2017-02-243761-800-1030ND
2017-04-043761-801-102043.4 ppb
2017-04-043761-803-125532.0 ppb
2017-04-043761-802-121041.2 ppb
2017-04-043761-800-104535.7 ppb
2017-07-033761-803-123012.1 ppb
2017-07-033761-800-103426.7 ppb
2017-07-033761-801-101429.2 ppb
2017-07-033761-802-120234.5 ppb
2017-10-033761-800-10501.10 ppb
2017-10-033761-801-1035ND
2017-10-033761-802-12103.30 ppb
2017-10-033761-803-12401.20 ppb