Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Haloacetic acids (HAA5)

City of Newman Water Department

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

 

86

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.38 ppb97ND - 5.70 ppb
20150.400 ppb134ND - 1.70 ppb
20161.01 ppb1612ND - 1.90 ppb
20170.369 ppb165ND - 1.60 ppb
20180.300 ppb164ND - 1.40 ppb
20190.738 ppb169ND - 1.70 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
2014-04-304790-903-0900ND
2014-04-304790-902-08402.00 ppb
2014-04-304790-901-08205.70 ppb
2014-04-304790-900-0800ND
2014-07-214790-903-11053.30 ppb
2014-07-214790-902-10502.90 ppb
2014-07-214790-901-10302.50 ppb
2014-07-214790-900-10152.40 ppb
2014-10-084790-900-08002.60 ppb
2015-01-144790-900-0730ND
2015-04-084790-900-0825ND
2015-04-084790-903-0835ND
2015-04-084790-902-0845ND
2015-04-084790-901-0855ND
2015-07-089588-900-0700ND
2015-07-089588-903-07451.20 ppb
2015-07-089588-902-07301.70 ppb
2015-07-089588-901-0715ND
2015-10-089588-903-08301.000 ppb
2015-10-089588-902-08151.30 ppb
2015-10-089588-901-0800ND
2015-10-089588-900-0745ND
2016-01-149588-901-07451.10 ppb
2016-01-149588-902-08001.90 ppb
2016-01-149588-900-07301.40 ppb
2016-01-149588-903-08151.40 ppb
2016-04-139588-903-08001.40 ppb
2016-04-139588-901-0730ND
2016-04-139588-902-07401.30 ppb
2016-04-139588-900-07151.10 ppb
2016-07-079588-902-08001.60 ppb
2016-07-079588-903-08151.000 ppb
2016-07-079588-900-0730ND
2016-07-079588-901-0745ND
2016-10-139588-903-08151.10 ppb
2016-10-139588-901-0745ND
2016-10-139588-902-08001.60 ppb
2016-10-179588-900-07301.20 ppb
2017-01-139588-900-0730ND
2017-01-139588-903-08151.000 ppb
2017-01-139588-901-0745ND
2017-01-139588-902-08001.60 ppb
2017-04-189588-900-0700ND
2017-04-189588-903-0800ND
2017-04-189588-901-0730ND
2017-04-189588-902-07451.20 ppb
2017-07-189588-900-0900ND
2017-07-189588-902-0925ND
2017-07-189588-903-0935ND
2017-07-189588-901-0915ND
2017-10-119588-900-07301.000 ppb
2017-10-119588-902-08001.10 ppb
2017-10-119588-903-0815ND
2017-10-119588-901-0745ND
2018-01-119588-903-1035ND
2018-01-119588-902-10251.10 ppb
2018-01-119588-901-1015ND
2018-01-119588-900-1000ND
2018-04-139588-900-0700ND
2018-04-139588-901-0715ND
2018-04-139588-902-07301.20 ppb
2018-04-139588-903-07451.10 ppb
2018-07-099588-901-0715ND
2018-07-099588-902-0730ND
2018-07-099588-900-0700ND
2018-07-099588-903-0745ND
2018-10-119588-900-0700ND
2018-10-119588-903-07451.40 ppb
2018-10-119588-901-0715ND
2018-10-119588-902-0730ND
2019-01-109588-901-0815ND
2019-01-109588-900-08001.10 ppb
2019-01-109588-903-08451.10 ppb
2019-01-109588-902-08301.60 ppb
2019-04-119588-901-0815ND
2019-04-119588-900-08001.10 ppb
2019-04-119588-902-08301.50 ppb
2019-04-119588-903-08451.10 ppb
2019-07-119588-903-09351.30 ppb
2019-07-119588-900-0900ND
2019-07-119588-901-0915ND
2019-07-119588-902-0925ND
2019-10-109588-903-07451.70 ppb
2019-10-109588-902-07301.30 ppb
2019-10-109588-900-0700ND
2019-10-109588-901-0715ND