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EWG's Tap Water Database — 2021 UPDATE

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Haloacetic acids (HAA5)

Dunkirk City and Area

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

 

105

Samples

0

Samples exceeding legal limit (MCL)

95

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20144.31 ppb2014ND - 14.4 ppb
20154.57 ppb2019ND - 9.88 ppb
20164.71 ppb16162.20 ppb - 9.90 ppb
20177.64 ppb16161.40 ppb - 15.2 ppb
20186.67 ppb17171.40 ppb - 14.6 ppb
20194.88 ppb1613ND - 11.1 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
2014-02-06STAGE2 ST. COL F12.1 ppb
2014-02-06STAGE2LAFAYETTE7.70 ppb
2014-05-01MAY14 DUNKIRK SA14.4 ppb
2014-05-01MAY14 DUNKIRK SA13.2 ppb
2014-08-21AUG 2014 LAFAYETND
2014-08-21AUG14 LAFAYETT TND
2014-08-21AUG14 ST COL. TOND
2014-08-21AUG 2014 DON FRA2.97 ppb
2014-08-21AUG 2014 HOYT9.00 ppb
2014-08-21AUG 2014 ST COLUND
2014-08-28AUG14 HOYT TOTAL8.99 ppb
2014-08-28AUG14 DONFRAME T2.97 ppb
2014-11-05NOV14STCOLUMBANND
2014-11-05NOV14 DON FRAME1.35 ppb
2014-11-05NOV14 DONFRAME T1.35 ppb
2014-11-05NOV14 ST. COLUMBND
2014-11-06NOV14LAFAYETTE T1.14 ppb
2014-11-06NOV14 344 HOYT4.94 ppb
2014-11-06NOV14 HOYT TOTAL4.94 ppb
2014-11-06NOV14 17 LAFAYET1.14 ppb
2015-02-04FEB15 HOYT TOTAL9.56 ppb
2015-02-04FEB15COLUMBANS T9.40 ppb
2015-02-04FEB15 4737 WILLO1.50 ppb
2015-02-04FEB15 ST. COLUMB9.40 ppb
2015-02-04FEB15 WILLOW TOT1.50 ppb
2015-02-04FEB15 LAYFAYETTT2.41 ppb
2015-02-04FEB15 344 HOYT9.56 ppb
2015-02-04FEB15 LAFAYETTE2.41 ppb
2015-05-14MAY15 ST. COLUMB9.88 ppb
2015-05-14MAY15 LAFAYETTE1.15 ppb
2015-05-14MAY15 WILLOW ROAND
2015-05-14MAY15 HOYT ST6.09 ppb
2015-08-06AUG15 344 HOYT0.740 ppb
2015-08-06AUG15 17 LAFAYET4.50 ppb
2015-08-06AUG15 ST. COLUMB6.00 ppb
2015-08-06AUG15 4737 WILLO4.20 ppb
2015-11-19NOV15 LAFAYETTE0.680 ppb
2015-11-19NOV15 4737WILLOW2.10 ppb
2015-11-19NOV15 HOYT ST6.70 ppb
2015-11-19NOV15 ST COLUMBA3.60 ppb
2016-02-23FEB16 17 LAFAYET2.90 ppb
2016-02-23FEB16 334 HOYT9.90 ppb
2016-02-23FEB16 ST. COLUMB9.20 ppb
2016-02-23FEB16 JN ADAM5.90 ppb
2016-05-102NDQT16 JN ADAM4.00 ppb
2016-05-102NDQT16 17 LAFAY6.20 ppb
2016-05-102NDQT16 ST COLUM6.30 ppb
2016-05-102NDQT16 344 HOYT6.20 ppb
2016-08-10AUG16 LAFAYETTE4.00 ppb
2016-08-10AUG16 JN ADAM DU3.60 ppb
2016-08-10AUG16 ST COLUMBA2.40 ppb
2016-08-10AUG16 HOYT, DUNK3.60 ppb
2016-11-02NOV16 344 HOYT2.40 ppb
2016-11-02NOV16 JN ADAM2.20 ppb
2016-11-02NOV16 ST COLUMBA3.00 ppb
2016-11-02NOV16 17 LAFAYET3.50 ppb
2017-02-08FEB17 ST. COLUMB13.9 ppb
2017-02-08FEB17 344 HOYT5.50 ppb
2017-02-08FEB17 17 LAFYETT9.90 ppb
2017-02-08FEB17 JN ADAMS H7.20 ppb
2017-05-03MAY17 ST COLULMB15.1 ppb
2017-05-03MAY17 JN ADAMS8.40 ppb
2017-05-03MAY17 LAFAYETTE15.2 ppb
2017-05-03MAY17 344 HOYT4.90 ppb
2017-08-09AUG17 LAFAYETTE5.40 ppb
2017-08-09AUG17 ST. COLUMB1.40 ppb
2017-08-09AUG17 JN ADAMS14.1 ppb
2017-08-09AUG17 HOYT5.60 ppb
2017-11-08NOV17 344 HOYT4.30 ppb
2017-11-08NOV17 JN ADAM 203.80 ppb
2017-11-08NOV17 ST. COLUMB3.10 ppb
2017-11-08NOV17 17 LAFEYET4.40 ppb
2018-02-13Q1DUNKIRK 2018 C12.3 ppb
2018-02-13Q1DUNKIRK 2018 L11.4 ppb
2018-02-13Q1DUNKIRK 2018 J7.00 ppb
2018-02-13Q1DUNKIRK 2018 H4.80 ppb
2018-05-08Q219 SENIOR CTR7.90 ppb
2018-05-09Q2DUNKIRK 18 COL11.6 ppb
2018-05-09Q2DUNKIRK 18 HOY4.90 ppb
2018-05-09Q2DUNKIRK 18 LAF14.6 ppb
2018-05-09Q2DUNKIRK 18 ADA8.00 ppb
2018-08-15Q3DUNKIRK 18 HOY4.70 ppb
2018-08-15Q3DUNKIRK 18 LAF4.50 ppb
2018-08-15Q3DUNKIRK 18 ADA4.00 ppb
2018-08-15Q3DUNKIRK 18 ST1.40 ppb
2018-11-20Q4 18 HOYT DBPS4.10 ppb
2018-11-20Q4 18 SENIOR CTR3.60 ppb
2018-11-20Q4 18 LAFAYETTE6.00 ppb
2018-11-20Q4 18 FISHERIES2.60 ppb
2019-02-13Q1 19 344 HOYT D8.10 ppb
2019-02-13Q1 19 LAFAYETTE10.3 ppb
2019-02-13Q1 19 SENIOR CTR7.00 ppb
2019-02-13Q1 19 FISHERIES2.90 ppb
2019-05-08Q2 19 LAFAYETTE11.1 ppb
2019-05-08Q2 19 344 HOYT DND
2019-05-08Q2 19 SENIOR CTR7.90 ppb
2019-05-08Q2 19 FISHERIES1.000 ppb
2019-08-28Q3 19 344 HOYT DND
2019-08-28Q3 19 LAFAYETTE5.40 ppb
2019-08-28Q3 19 FISHERIESND
2019-08-28Q3 19 SENIOR CTR6.70 ppb
2019-11-13Q4 19 SENIOR CTR5.40 ppb
2019-11-13Q4 19 344 HOYT D3.90 ppb
2019-11-13Q4 19 LAFAYETTE5.80 ppb
2019-11-13Q4 19 FISHERIES2.60 ppb