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EWG's Tap Water Database — 2019 UPDATE

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Haloacetic acids (HAA5)

City of Sugar Land

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.

 

160

Samples

0

Samples exceeding legal limit (MCL)

120

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND90ND
20130.371 ppb241ND - 8.90 ppb
20145.57 ppb31311.000 ppb - 9.10 ppb
20155.33 ppb3230ND - 9.60 ppb
20164.17 ppb3230ND - 6.40 ppb
20173.58 ppb3228ND - 9.90 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
2012-05-11AB89705ND
2012-05-11AB89706ND
2012-05-11AB89700ND
2012-05-11AB89702ND
2012-05-11AB89701ND
2012-10-02AC02437ND
2012-10-02AC02439ND
2012-10-02AC02435ND
2012-10-02AC02436ND
2013-01-24AC08695ND
2013-01-24AC08682ND
2013-01-24AC086858.90 ppb
2013-01-24AC08686ND
2013-04-24AC17695ND
2013-04-24AC17696ND
2013-04-24AC17697ND
2013-04-24AC17698ND
2013-07-15AC24639ND
2013-07-15AC24643ND
2013-07-15AC24645ND
2013-07-15AC24644ND
2013-07-15AC24648ND
2013-07-15AC24647ND
2013-07-15AC24646ND
2013-07-15AC24649ND
2013-11-08AC34755ND
2013-11-08AC34757ND
2013-11-08AC34759ND
2013-11-08AC34756ND
2013-11-08AC34761ND
2013-11-08AC34758ND
2013-11-08AC34754ND
2013-11-08AC34760ND
2014-02-11AC421957.30 ppb
2014-02-11AC422005.40 ppb
2014-02-11AC421927.00 ppb
2014-02-11AC421996.40 ppb
2014-02-11AC422014.10 ppb
2014-02-11AC421937.50 ppb
2014-02-11AC421988.20 ppb
2014-04-29AC522116.90 ppb
2014-04-29AC521925.60 ppb
2014-04-29AC521952.40 ppb
2014-04-29AC521936.10 ppb
2014-04-29AC522121.20 ppb
2014-04-29AC521965.30 ppb
2014-04-29AC521712.00 ppb
2014-04-29AC521945.60 ppb
2014-07-23AC607703.60 ppb
2014-07-23AC607396.20 ppb
2014-07-23AC607955.60 ppb
2014-07-23AC607405.10 ppb
2014-07-23AC607691.60 ppb
2014-07-23AC607834.40 ppb
2014-07-23AC607641.000 ppb
2014-07-23AC607654.10 ppb
2014-10-14AC696578.10 ppb
2014-10-14AC696567.40 ppb
2014-10-14AC696557.40 ppb
2014-10-14AC696548.50 ppb
2014-10-14AC696698.00 ppb
2014-10-14AC696488.90 ppb
2014-10-14AC696502.80 ppb
2014-10-14AC696519.10 ppb
2015-01-22AC774187.80 ppb
2015-01-22AC774109.20 ppb
2015-01-22AC774198.00 ppb
2015-01-22AC774268.40 ppb
2015-01-22AC774159.60 ppb
2015-01-22AC774277.30 ppb
2015-01-22AC774137.60 ppb
2015-01-22AC774098.50 ppb
2015-06-02AC942752.50 ppb
2015-06-02AC942684.00 ppb
2015-06-02AC942763.50 ppb
2015-06-02AC942694.40 ppb
2015-06-02AC942882.90 ppb
2015-06-02AC942782.60 ppb
2015-06-02AC94261ND
2015-06-02AC942872.50 ppb
2015-07-16AC999366.00 ppb
2015-07-16AC999204.20 ppb
2015-07-16AC999326.60 ppb
2015-07-16AC999307.50 ppb
2015-07-16AC999111.60 ppb
2015-07-16AC999196.20 ppb
2015-07-16AC999291.40 ppb
2015-07-16AC999275.90 ppb
2015-11-04AD126025.60 ppb
2015-11-04AD126154.00 ppb
2015-11-04AD126126.40 ppb
2015-11-04AD125698.40 ppb
2015-11-04AD126134.60 ppb
2015-11-04AD125686.60 ppb
2015-11-04AD12609ND
2015-11-04AD126146.70 ppb
2016-02-02AD214366.40 ppb
2016-02-02AD21431ND
2016-02-02AD214385.80 ppb
2016-02-02AD214395.40 ppb
2016-02-02AD214335.70 ppb
2016-02-02AD214375.30 ppb
2016-02-02AD214414.40 ppb
2016-02-02AD214425.50 ppb
2016-04-19AD335743.70 ppb
2016-04-19AD335774.20 ppb
2016-04-19AD335644.10 ppb
2016-04-19AD335724.90 ppb
2016-04-19AD335733.70 ppb
2016-04-19AD335754.20 ppb
2016-04-19AD335683.60 ppb
2016-04-19AD335784.70 ppb
2016-09-01AD476464.60 ppb
2016-09-01AD476794.40 ppb
2016-09-01AD476434.00 ppb
2016-09-01AD476506.10 ppb
2016-09-01AD476474.00 ppb
2016-09-01AD476815.70 ppb
2016-09-01AD476483.30 ppb
2016-09-01AD476444.70 ppb
2016-10-05AD525344.40 ppb
2016-10-05AD52537ND
2016-10-05AD525394.90 ppb
2016-10-05AD525286.20 ppb
2016-10-05AD525362.80 ppb
2016-10-05AD525381.000 ppb
2016-10-05AD525301.40 ppb
2016-10-05AD525324.20 ppb
2017-01-04AD629585.90 ppb
2017-01-04AD629685.90 ppb
2017-01-04AD629536.00 ppb
2017-01-04AD629663.30 ppb
2017-01-04AD629611.20 ppb
2017-01-04AD62960ND
2017-01-04AD629542.10 ppb
2017-01-04AD629556.00 ppb
2017-04-03AD780293.20 ppb
2017-04-03AD780331.000 ppb
2017-04-03AD780273.20 ppb
2017-04-03AD780323.00 ppb
2017-04-03AD780261.60 ppb
2017-04-03AD780311.20 ppb
2017-04-03AD780301.10 ppb
2017-04-03AD780283.20 ppb
2017-07-05AD883056.30 ppb
2017-07-05AD88306ND
2017-07-05AD883025.40 ppb
2017-07-05AD882995.90 ppb
2017-07-05AD88303ND
2017-07-05AD883014.00 ppb
2017-07-05AD883042.30 ppb
2017-07-05AD883009.90 ppb
2017-10-02AD987636.70 ppb
2017-10-02AD98776ND
2017-10-02AD987804.20 ppb
2017-10-02AD987704.60 ppb
2017-10-02AD987742.80 ppb
2017-10-02AD987774.80 ppb
2017-10-02AD987813.70 ppb
2017-10-02AD987795.90 ppb