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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

City of Lodi

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

 

168

Samples

0

Samples exceeding legal limit (MCL)

99

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.08 ppb328ND - 15.0 ppb
20157.04 ppb3221ND - 18.0 ppb
20164.06 ppb3217ND - 16.0 ppb
20178.86 ppb3223ND - 20.0 ppb
20187.98 ppb2417ND - 19.0 ppb
20197.63 ppb1613ND - 16.0 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
2014-01-141982-900-0910ND
2014-01-141982-901-0930ND
2014-01-141982-902-0950ND
2014-01-141982-903-1040ND
2014-01-141982-904-11004.90 ppb
2014-01-141982-905-1010ND
2014-01-141982-906-082011.1 ppb
2014-01-141982-907-0850ND
2014-04-025802-900-10107.90 ppb
2014-04-025802-901-0955ND
2014-04-025802-902-0940ND
2014-04-025802-903-0900ND
2014-04-025802-904-0840ND
2014-04-025802-905-0915ND
2014-04-025802-906-080015.0 ppb
2014-04-025802-907-082014.0 ppb
2014-07-015802-900-0710ND
2014-07-015802-901-0735ND
2014-07-015802-902-0810ND
2014-07-015802-903-0915ND
2014-07-015802-904-0850ND
2014-07-015802-905-0835ND
2014-07-015802-906-0955ND
2014-07-015802-907-09351.50 ppb
2014-10-095802-900-0830ND
2014-10-095802-901-0900ND
2014-10-095802-902-10104.50 ppb
2014-10-095802-903-1020ND
2014-10-095802-904-1045ND
2014-10-095802-905-0950ND
2014-10-095802-906-0800ND
2014-10-095802-907-10307.60 ppb
2015-01-085802-900-09105.20 ppb
2015-01-085802-901-0830ND
2015-01-085802-902-08153.80 ppb
2015-01-085802-903-0930ND
2015-01-085802-904-07457.80 ppb
2015-01-085802-905-0800ND
2015-01-085802-906-070018.0 ppb
2015-01-085802-907-07304.10 ppb
2015-04-065802-900-124517.0 ppb
2015-04-065802-901-1125ND
2015-04-065802-902-11058.40 ppb
2015-04-065802-903-104515.0 ppb
2015-04-065802-904-132511.0 ppb
2015-04-065802-905-1145ND
2015-04-065802-906-130514.0 ppb
2015-04-075802-907-135015.0 ppb
2015-07-085802-900-13408.90 ppb
2015-07-085802-901-1315ND
2015-07-085802-902-1240ND
2015-07-085802-903-12555.30 ppb
2015-07-085802-904-11454.70 ppb
2015-07-085802-905-1215ND
2015-07-085802-906-11103.30 ppb
2015-07-095802-907-113017.0 ppb
2015-10-055802-900-09457.80 ppb
2015-10-055802-901-1015ND
2015-10-055802-902-1055ND
2015-10-055802-903-120017.0 ppb
2015-10-055802-904-125014.0 ppb
2015-10-055802-905-1035ND
2015-10-055802-906-081514.0 ppb
2015-10-055802-907-140014.0 ppb
2016-01-065806-900-1220ND
2016-01-065806-901-1240ND
2016-01-065806-902-1255ND
2016-01-065806-903-1325ND
2016-01-065806-904-1346ND
2016-01-065806-905-1310ND
2016-01-065806-906-1415ND
2016-01-065806-907-1400ND
2016-04-135802-900-07154.50 ppb
2016-04-135802-901-0740ND
2016-04-135802-902-0800ND
2016-04-135802-903-11556.50 ppb
2016-04-135802-904-134010.00 ppb
2016-04-135802-905-13155.80 ppb
2016-04-135802-906-14457.60 ppb
2016-04-135802-907-141514.0 ppb
2016-07-135802-900-10105.20 ppb
2016-07-135802-901-10401.20 ppb
2016-07-135802-902-1100ND
2016-07-135802-903-11556.00 ppb
2016-07-135802-904-12305.60 ppb
2016-07-135802-905-1125ND
2016-07-135802-906-1330ND
2016-07-135802-907-130010.00 ppb
2016-10-045802-900-08007.20 ppb
2016-10-045802-901-08304.30 ppb
2016-10-045802-902-09301.90 ppb
2016-10-045802-903-091016.0 ppb
2016-10-045802-904-095014.0 ppb
2016-10-045802-905-0850ND
2016-10-045802-906-1030ND
2016-10-045802-907-101010.00 ppb
2017-01-045802-900-090019.0 ppb
2017-01-045802-901-0930ND
2017-01-045802-902-1015ND
2017-01-045802-903-110019.0 ppb
2017-01-045802-904-113020.0 ppb
2017-01-045802-905-0955ND
2017-01-045802-906-141517.0 ppb
2017-01-045802-907-135017.0 ppb
2017-04-055806-900-085014.0 ppb
2017-04-055806-901-09102.10 ppb
2017-04-055806-902-13004.10 ppb
2017-04-055806-903-130014.0 ppb
2017-04-055806-904-13509.60 ppb
2017-04-055806-905-1330ND
2017-04-055806-906-09403.20 ppb
2017-04-055806-907-10106.00 ppb
2017-07-055802-900-11507.90 ppb
2017-07-055802-901-1220ND
2017-07-055802-902-1245ND
2017-07-055802-903-133013.0 ppb
2017-07-055802-904-135012.0 ppb
2017-07-055802-905-1310ND
2017-07-055802-906-143014.0 ppb
2017-07-055802-907-140513.0 ppb
2017-10-025802-900-125016.0 ppb
2017-10-025802-901-1320ND
2017-10-025802-902-13406.70 ppb
2017-10-025802-903-150515.0 ppb
2017-10-025802-904-143014.0 ppb
2017-10-025802-905-1405ND
2017-10-035802-906-091014.0 ppb
2017-10-035802-907-085013.0 ppb
2018-01-045802-900-080013.0 ppb
2018-01-045802-901-08254.60 ppb
2018-01-045802-902-08509.80 ppb
2018-01-045802-903-092011.0 ppb
2018-01-045802-904-100510.00 ppb
2018-01-045802-905-0945ND
2018-01-045802-906-10459.50 ppb
2018-01-045802-907-102510.00 ppb
2018-04-045802-900-12009.50 ppb
2018-04-045802-901-1230ND
2018-04-045802-902-1300ND
2018-04-045802-903-135014.0 ppb
2018-04-045802-904-141019.0 ppb
2018-04-045802-905-1330ND
2018-04-045802-906-150017.0 ppb
2018-04-045802-907-143517.0 ppb
2018-07-049590-900-120515.0 ppb
2018-07-049590-901-1230ND
2018-07-049590-902-1255ND
2018-07-049590-903-10208.80 ppb
2018-07-049590-904-10503.20 ppb
2018-07-049590-905-1320ND
2018-07-049590-906-11407.20 ppb
2018-07-049590-907-112013.0 ppb
2019-04-039590-900-112014.0 ppb
2019-04-039590-901-12404.60 ppb
2019-04-039590-902-13204.40 ppb
2019-04-039590-903-13403.50 ppb
2019-04-039590-904-140016.0 ppb
2019-04-039590-905-13002.30 ppb
2019-04-039590-906-144013.0 ppb
2019-04-039590-907-142015.0 ppb
2019-10-095802-900-13305.90 ppb
2019-10-095802-901-1400ND
2019-10-095802-902-1430ND
2019-10-095802-903-145014.0 ppb
2019-10-095802-904-104512.0 ppb
2019-10-095802-905-1140ND
2019-10-095802-906-13057.80 ppb
2019-10-095802-907-11109.50 ppb