Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Haloacetic acids (HAA5)

Cape Fear Public Utility Authority - Wilmington

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.

MORE ABOUT THIS CONTAMINANT

 

192

Samples

0

Samples exceeding legal limit (MCL)

192

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
201421.4 ppb323211.4 ppb - 36.0 ppb
201523.3 ppb32328.80 ppb - 42.0 ppb
201623.2 ppb323211.8 ppb - 41.3 ppb
201714.9 ppb32329.30 ppb - 22.0 ppb
201823.5 ppb32324.80 ppb - 38.6 ppb
201910.7 ppb32325.60 ppb - 27.0 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 the group of five haloacetic acids, or HAA5, was defined in a peer-reviewed scientific study by EWG and represents a one-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
2014-01-0720140108047826.0 ppb
2014-01-0720140108047921.0 ppb
2014-01-0720140108048030.0 ppb
2014-01-0720140108048125.0 ppb
2014-01-0720140108048226.2 ppb
2014-01-0720140108048330.0 ppb
2014-01-0720140108048423.0 ppb
2014-01-0720140108048521.0 ppb
2014-04-1420140415042712.6 ppb
2014-04-1420140415042916.8 ppb
2014-04-1420140415043011.7 ppb
2014-04-1420140415043117.3 ppb
2014-04-1420140415043211.4 ppb
2014-04-1420140415043316.5 ppb
2014-04-1420140415043416.9 ppb
2014-04-1420140415043514.2 ppb
2014-07-0720140710028525.0 ppb
2014-07-0720140710028622.0 ppb
2014-07-0720140710028717.4 ppb
2014-07-0720140710028822.0 ppb
2014-07-0720140710028920.0 ppb
2014-07-0720140710029025.0 ppb
2014-07-0720140710029121.0 ppb
2014-07-0720140710029213.4 ppb
2014-10-0720141008059925.0 ppb
2014-10-0720141008060021.4 ppb
2014-10-0720141008060122.0 ppb
2014-10-0720141008060220.5 ppb
2014-10-0720141008060336.0 ppb
2014-10-0720141008060414.0 ppb
2014-10-0720141008060530.0 ppb
2014-10-0720141008059832.0 ppb
2015-01-0626.0 ppb
2015-01-0616.8 ppb
2015-01-0614.2 ppb
2015-01-0627.0 ppb
2015-01-0615.0 ppb
2015-01-0642.0 ppb
2015-01-0636.0 ppb
2015-01-0617.0 ppb
2015-04-0717.8 ppb
2015-04-0718.4 ppb
2015-04-0714.0 ppb
2015-04-0714.5 ppb
2015-04-0714.1 ppb
2015-04-078.80 ppb
2015-04-0718.1 ppb
2015-04-0714.0 ppb
2015-07-0723.8 ppb
2015-07-0729.8 ppb
2015-07-0728.8 ppb
2015-07-0728.4 ppb
2015-07-0729.5 ppb
2015-07-0730.2 ppb
2015-07-0724.4 ppb
2015-07-0726.8 ppb
2015-10-0827.2 ppb
2015-10-0824.4 ppb
2015-10-0823.6 ppb
2015-10-0827.0 ppb
2015-10-0828.5 ppb
2015-10-0827.1 ppb
2015-10-0828.9 ppb
2015-10-0824.9 ppb
2016-01-05338213528.0 ppb
2016-01-05338213632.1 ppb
2016-01-05338213740.2 ppb
2016-01-05338213833.1 ppb
2016-01-05338213931.1 ppb
2016-01-05338214033.1 ppb
2016-01-05338214141.3 ppb
2016-01-05338214234.2 ppb
2016-04-05342554516.6 ppb
2016-04-05342554619.2 ppb
2016-04-05342554719.0 ppb
2016-04-05342554818.3 ppb
2016-04-05342554921.7 ppb
2016-04-05342555014.7 ppb
2016-04-05342555118.4 ppb
2016-04-05342555218.3 ppb
2016-07-06348653511.8 ppb
2016-07-06348653615.7 ppb
2016-07-06348653723.5 ppb
2016-07-06348653814.4 ppb
2016-07-06348653918.0 ppb
2016-07-06348654017.4 ppb
2016-07-06348654119.1 ppb
2016-07-06348654214.1 ppb
2016-10-04355891820.1 ppb
2016-10-04355891924.3 ppb
2016-10-04355892023.1 ppb
2016-10-04355892124.5 ppb
2016-10-04355892226.2 ppb
2016-10-04355892321.0 ppb
2016-10-04355892426.0 ppb
2016-10-04355892525.0 ppb
2017-01-03361508710.3 ppb
2017-01-03361508812.0 ppb
2017-01-03361508914.9 ppb
2017-01-03361509011.2 ppb
2017-01-03361509111.6 ppb
2017-01-03361509212.4 ppb
2017-01-03361509314.7 ppb
2017-01-0336150949.60 ppb
2017-04-0436690029.30 ppb
2017-04-04366900311.2 ppb
2017-04-04366900414.3 ppb
2017-04-04366900511.0 ppb
2017-04-04366900611.0 ppb
2017-04-04366900711.1 ppb
2017-04-04366900812.4 ppb
2017-04-0436690099.40 ppb
2017-07-05372645813.9 ppb
2017-07-05372645919.1 ppb
2017-07-05372646013.6 ppb
2017-07-05372646120.8 ppb
2017-07-05372646219.1 ppb
2017-07-05372646320.5 ppb
2017-07-05372646420.4 ppb
2017-07-05372646522.0 ppb
2017-10-03379181613.5 ppb
2017-10-03379181718.7 ppb
2017-10-03379181813.8 ppb
2017-10-03379181921.0 ppb
2017-10-03379182017.4 ppb
2017-10-03379182117.5 ppb
2017-10-03379182218.9 ppb
2017-10-03379182320.5 ppb
2018-01-103851092 8.40 ppb
2018-01-103851093 10.6 ppb
2018-01-103851094 13.8 ppb
2018-01-103851095 8.60 ppb
2018-01-103851096 9.10 ppb
2018-01-103851097 7.50 ppb
2018-01-103851098 15.9 ppb
2018-01-103851099 4.80 ppb
2018-04-033903149 13.9 ppb
2018-04-033903150 17.8 ppb
2018-04-033903151 22.8 ppb
2018-04-033903152 19.0 ppb
2018-04-033903153 18.2 ppb
2018-04-033903154 27.7 ppb
2018-04-033903155 21.7 ppb
2018-04-033903156 17.3 ppb
2018-07-0392390903001TTH 26.0 ppb
2018-07-0392390903002TTH 33.0 ppb
2018-07-0392390903003TTH 38.0 ppb
2018-07-0392390903004TTH 34.0 ppb
2018-07-0392390903005TTH 32.0 ppb
2018-07-0392390903006TTH 32.0 ppb
2018-07-0392390903007TTH 34.0 ppb
2018-07-0392390903008TTH 33.0 ppb
2018-10-094084034 27.7 ppb
2018-10-094084036 30.6 ppb
2018-10-094084038 29.5 ppb
2018-10-094084040 33.4 ppb
2018-10-094084042 32.6 ppb
2018-10-094084044 32.6 ppb
2018-10-094084046 38.6 ppb
2018-10-094084048 27.6 ppb
2019-01-084168384 5.70 ppb
2019-01-084168386 6.60 ppb
2019-01-084168388 9.20 ppb
2019-01-084168390 6.80 ppb
2019-01-084168392 6.30 ppb
2019-01-084168394 5.70 ppb
2019-01-084168396 7.90 ppb
2019-01-084168398 5.60 ppb
2019-04-034248513-1 5.90 ppb
2019-04-034248514-1 7.90 ppb
2019-04-034248515-1 9.70 ppb
2019-04-034248516-1 6.70 ppb
2019-04-034248517-1 7.10 ppb
2019-04-034248518-1 6.70 ppb
2019-04-034248519-1 8.20 ppb
2019-04-034248520-1 7.80 ppb
2019-07-024343184 8.70 ppb
2019-07-024343186 10.3 ppb
2019-07-024343188 13.0 ppb
2019-07-024343190 9.70 ppb
2019-07-024343192 9.00 ppb
2019-07-024343194 12.0 ppb
2019-07-024343196 13.5 ppb
2019-07-024343198 6.20 ppb
2019-10-014443180 17.0 ppb
2019-10-014443182 17.0 ppb
2019-10-014443184 27.0 ppb
2019-10-014443186 15.0 ppb
2019-10-014443188 19.0 ppb
2019-10-014443190 22.3 ppb
2019-10-014443192 18.0 ppb
2019-10-014443194 11.0 ppb