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EWG's Tap Water Database — 2019 UPDATE

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Haloacetic acids (HAA5)

North Las Vegas Utilities

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.

 

287

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201230.7 ppb4847ND - 44.0 ppb
201321.5 ppb4846ND - 39.0 ppb
201420.9 ppb48482.00 ppb - 32.0 ppb
201517.7 ppb4847ND - 29.0 ppb
201623.5 ppb484815.6 ppb - 34.0 ppb
201721.1 ppb47478.00 ppb - 27.2 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2012-03-1512030304-00138.0 ppb
2012-03-1512030304-00237.0 ppb
2012-03-1512030304-00338.0 ppb
2012-03-1512030304-00439.0 ppb
2012-03-1512030304-00534.0 ppb
2012-03-1512030304-00628.0 ppb
2012-03-1512030304-00741.0 ppb
2012-03-1512030304-00841.0 ppb
2012-03-1512030304-00932.0 ppb
2012-03-1512030304-01040.0 ppb
2012-03-1512030304-01139.0 ppb
2012-03-1512030304-01244.0 ppb
2012-04-0412040058-00142.0 ppb
2012-04-0412040058-00241.0 ppb
2012-04-0412040058-00324.0 ppb
2012-04-0412040058-00439.0 ppb
2012-04-0412040058-00520.0 ppb
2012-04-0412040058-00632.0 ppb
2012-04-0412040058-00739.0 ppb
2012-04-0412040058-00840.0 ppb
2012-04-0412040058-00923.0 ppb
2012-04-0412040058-01028.0 ppb
2012-04-0412040058-01133.0 ppb
2012-04-0412040058-01237.0 ppb
2012-07-0512070061-00122.0 ppb
2012-07-0512070061-00223.0 ppb
2012-07-0512070061-00326.0 ppb
2012-07-0512070061-00423.0 ppb
2012-07-0512070061-0054.00 ppb
2012-07-0512070061-00625.0 ppb
2012-07-0512070061-00726.0 ppb
2012-07-0512070061-00829.0 ppb
2012-07-0512070061-00932.0 ppb
2012-07-0512070061-01020.0 ppb
2012-07-0512070061-01122.0 ppb
2012-07-0512070061-01228.0 ppb
2012-10-0412100079-00127.0 ppb
2012-10-0412100079-00231.0 ppb
2012-10-0412100079-00330.0 ppb
2012-10-0412100079-00435.0 ppb
2012-10-0412100079-005ND
2012-10-0412100079-00629.0 ppb
2012-10-0412100079-00735.0 ppb
2012-10-0412100079-00832.0 ppb
2012-10-0412100079-00938.0 ppb
2012-10-0412100079-01020.0 ppb
2012-10-0412100079-01132.0 ppb
2012-10-0412100079-01236.0 ppb
2013-01-0313010011-00139.0 ppb
2013-01-0313010011-00230.0 ppb
2013-01-0313010011-00330.0 ppb
2013-01-0313010011-00434.0 ppb
2013-01-0313010011-005ND
2013-01-0313010011-00627.0 ppb
2013-01-0313010011-00728.0 ppb
2013-01-0313010011-00814.0 ppb
2013-01-0313010011-00914.0 ppb
2013-01-0313010011-01021.0 ppb
2013-01-0313010011-01136.0 ppb
2013-01-0313010011-01234.0 ppb
2013-04-0413040068-00124.0 ppb
2013-04-0413040068-00222.0 ppb
2013-04-0413040068-00322.0 ppb
2013-04-0413040068-00427.0 ppb
2013-04-0413040068-00511.0 ppb
2013-04-0413040068-00630.0 ppb
2013-04-0413040068-00729.0 ppb
2013-04-0413040068-00823.0 ppb
2013-04-0413040068-00925.0 ppb
2013-04-0413040068-01017.0 ppb
2013-04-0413040068-01120.0 ppb
2013-04-0413040068-01229.0 ppb
2013-07-0313070043-00121.0 ppb
2013-07-0313070043-00222.0 ppb
2013-07-0313070043-00319.0 ppb
2013-07-0313070043-00428.0 ppb
2013-07-0313070043-0053.80 ppb
2013-07-0313070043-00620.0 ppb
2013-07-0313070043-00724.0 ppb
2013-07-0313070043-00818.0 ppb
2013-07-0313070043-00919.0 ppb
2013-07-0313070043-01014.0 ppb
2013-07-0313070043-01117.0 ppb
2013-07-0313070043-01221.0 ppb
2013-10-0313100022-00125.0 ppb
2013-10-0313100022-00213.0 ppb
2013-10-0313100022-00316.0 ppb
2013-10-0313100022-00420.0 ppb
2013-10-0313100022-0051.000 ppb
2013-10-0313100022-00622.0 ppb
2013-10-0313100022-00720.0 ppb
2013-10-0313100022-00829.0 ppb
2013-10-0313100022-00930.0 ppb
2013-10-0313100022-01018.0 ppb
2013-10-0313100022-01123.0 ppb
2013-10-0313100022-012ND
2014-01-0213120438-00119.0 ppb
2014-01-0213120438-00222.0 ppb
2014-01-0213120438-00310.00 ppb
2014-01-0213120438-00423.0 ppb
2014-01-0213120438-00522.0 ppb
2014-01-0213120438-00620.0 ppb
2014-01-0213120438-00715.0 ppb
2014-01-0213120438-00817.0 ppb
2014-01-0213120438-00911.0 ppb
2014-01-0213120438-01016.0 ppb
2014-01-0213120438-01121.0 ppb
2014-01-0213120438-01224.0 ppb
2014-04-0314040024-00117.0 ppb
2014-04-0314040024-00219.0 ppb
2014-04-0314040024-00315.0 ppb
2014-04-0314040024-00427.0 ppb
2014-04-0314040024-00515.0 ppb
2014-04-0314040024-00626.0 ppb
2014-04-0314040024-00727.0 ppb
2014-04-0314040024-00821.0 ppb
2014-04-0314040024-00919.0 ppb
2014-04-0314040024-01016.0 ppb
2014-04-0314040024-01117.0 ppb
2014-04-0314040024-01226.0 ppb
2014-07-0214070012-01126.0 ppb
2014-07-0214070012-01231.0 ppb
2014-07-2914070501-00127.0 ppb
2014-07-2914070501-00229.0 ppb
2014-07-2914070501-00314.0 ppb
2014-07-2914070501-00428.0 ppb
2014-07-2914070501-00530.0 ppb
2014-07-2914070501-00617.0 ppb
2014-07-2914070501-00716.0 ppb
2014-07-2914070501-00830.0 ppb
2014-07-2914070501-00932.0 ppb
2014-07-2914070501-01021.0 ppb
2014-10-0614100027-00119.0 ppb
2014-10-0614100027-00224.0 ppb
2014-10-0614100027-00311.0 ppb
2014-10-0614100027-00415.0 ppb
2014-10-0614100027-0052.00 ppb
2014-10-0614100027-00615.0 ppb
2014-10-0614100027-00715.0 ppb
2014-10-0614100027-00831.0 ppb
2014-10-0614100027-00928.0 ppb
2014-10-0614100027-01017.0 ppb
2014-10-0614100027-01130.0 ppb
2014-10-0614100027-01230.0 ppb
2015-01-0514120535-00129.0 ppb
2015-01-0514120535-00221.0 ppb
2015-01-0514120535-00313.0 ppb
2015-01-0514120535-00420.0 ppb
2015-01-0514120535-005ND
2015-01-0514120535-00613.0 ppb
2015-01-0514120535-00711.0 ppb
2015-01-0514120535-00814.0 ppb
2015-01-0514120535-00918.0 ppb
2015-01-0514120535-01017.0 ppb
2015-01-0514120535-01128.0 ppb
2015-01-0514120535-01220.0 ppb
2015-04-0215040020-00123.0 ppb
2015-04-0215040020-00222.0 ppb
2015-04-0215040020-00314.0 ppb
2015-04-0215040020-00421.0 ppb
2015-04-0215040020-00510.00 ppb
2015-04-0215040020-00615.0 ppb
2015-04-0215040020-00715.0 ppb
2015-04-0215040020-00819.0 ppb
2015-04-0215040020-00916.0 ppb
2015-04-0215040020-01013.0 ppb
2015-04-0215040020-01121.0 ppb
2015-04-0215040020-01219.0 ppb
2015-07-0215070002-00124.0 ppb
2015-07-0215070002-00223.0 ppb
2015-07-0215070002-00315.0 ppb
2015-07-0215070002-00419.0 ppb
2015-07-0215070002-0053.00 ppb
2015-07-0215070002-00622.0 ppb
2015-07-0215070002-00717.0 ppb
2015-07-0215070002-00824.0 ppb
2015-07-0215070002-00925.0 ppb
2015-07-0215070002-01017.0 ppb
2015-07-0215070002-01121.0 ppb
2015-07-0215070002-01220.0 ppb
2015-10-0115090548-00121.0 ppb
2015-10-0115090548-00222.0 ppb
2015-10-0115090548-00310.00 ppb
2015-10-0115090548-00413.0 ppb
2015-10-0115090548-0056.00 ppb
2015-10-0115090548-00619.0 ppb
2015-10-0115090548-00715.0 ppb
2015-10-0115090548-00819.0 ppb
2015-10-0115090548-00919.0 ppb
2015-10-0115090548-01016.0 ppb
2015-10-0115090548-01125.0 ppb
2015-10-0115090548-01223.0 ppb
2016-01-0716010043-00133.0 ppb
2016-01-0716010043-00233.0 ppb
2016-01-0716010043-00330.0 ppb
2016-01-0716010043-00429.0 ppb
2016-01-0716010043-00531.0 ppb
2016-01-0716010043-00628.0 ppb
2016-01-0716010043-00732.0 ppb
2016-01-0716010043-00827.0 ppb
2016-01-0716010043-00932.0 ppb
2016-01-0716010043-01034.0 ppb
2016-01-0716010043-01127.0 ppb
2016-01-0716010043-01234.0 ppb
2016-04-0416030493-00121.0 ppb
2016-04-0416030493-00223.0 ppb
2016-04-0416030493-00324.0 ppb
2016-04-0416030493-00422.0 ppb
2016-04-0416030493-00523.0 ppb
2016-04-0416030493-00623.0 ppb
2016-04-0416030493-00723.0 ppb
2016-04-0416030493-00822.0 ppb
2016-04-0416030493-00921.0 ppb
2016-04-0416030493-01025.0 ppb
2016-04-0416030493-01121.0 ppb
2016-04-0416030493-01223.0 ppb
2016-07-07S160247600125.6 ppb
2016-07-07S160247600315.6 ppb
2016-07-07S160247600426.1 ppb
2016-07-07S160247600521.8 ppb
2016-07-07S160247600621.8 ppb
2016-07-07S160247600724.7 ppb
2016-07-07S160247600816.2 ppb
2016-07-07S160247600916.9 ppb
2016-07-07S160247601021.9 ppb
2016-07-07S160315501116.4 ppb
2016-07-07S160315501221.5 ppb
2016-07-07S160247600224.1 ppb
2016-10-06S10373100217.0 ppb
2016-10-06S160373100120.0 ppb
2016-10-06S160373100318.7 ppb
2016-10-06S160373100421.0 ppb
2016-10-06S160373100520.0 ppb
2016-10-06S160373100617.7 ppb
2016-10-06S160373100720.0 ppb
2016-10-06S160373100817.1 ppb
2016-10-06S160373100920.0 ppb
2016-10-06S160373101020.0 ppb
2016-10-06S160373101123.0 ppb
2016-10-06S160373101222.0 ppb
2017-01-05S160541600119.0 ppb
2017-01-05S160541600220.0 ppb
2017-01-05S160541600323.0 ppb
2017-01-05S160541600421.0 ppb
2017-01-05S16054160058.40 ppb
2017-01-05S160541600619.0 ppb
2017-01-05S160541600720.0 ppb
2017-01-05S160541600820.0 ppb
2017-01-05S160541600919.0 ppb
2017-01-05S160541601120.0 ppb
2017-01-05S16541601219.0 ppb
2017-04-06S170012200122.4 ppb
2017-04-06S170012200221.3 ppb
2017-04-06S170012200326.0 ppb
2017-04-06S170012200425.8 ppb
2017-04-06S170012200521.6 ppb
2017-04-06S170012200621.0 ppb
2017-04-06S170012200723.2 ppb
2017-04-06S170012200819.3 ppb
2017-04-06S170012200919.2 ppb
2017-04-06S170012201025.3 ppb
2017-04-06S170012201121.1 ppb
2017-04-06S170012201224.2 ppb
2017-07-06S170225500120.6 ppb
2017-07-06S170225500225.1 ppb
2017-07-06S17022550039.90 ppb
2017-07-06S17022550048.00 ppb
2017-07-06S170225500523.9 ppb
2017-07-06S170225500622.5 ppb
2017-07-06S170225500725.7 ppb
2017-07-06S170225500820.0 ppb
2017-07-06S170225500919.9 ppb
2017-07-06S170225501020.7 ppb
2017-07-06S170225501125.2 ppb
2017-07-06S170225501224.6 ppb
2017-10-03S170462500120.7 ppb
2017-10-03S170462500222.9 ppb
2017-10-03S170462500311.8 ppb
2017-10-03S170462500421.6 ppb
2017-10-03S170462500517.1 ppb
2017-10-03S170462500624.4 ppb
2017-10-03S170462500726.8 ppb
2017-10-03S170462500824.3 ppb
2017-10-03S170462500923.5 ppb
2017-10-03S170462501023.6 ppb
2017-10-03S170462501123.3 ppb
2017-10-03S170462501227.2 ppb