Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Trichloroacetic acid

Hollidaysburg Municipal Authority

NOTE: Hollidaysburg Municipal Authority purchases water from Altoona Water Authority which is required to test for trichloroacetic acid. Sample information shown below was taken by Altoona Water Authority.

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

136

Samples

0

Samples exceeding legal limit (MCL)

109

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20133.44 ppb86ND - 11.9 ppb
20142.55 ppb222.39 ppb - 2.71 ppb
20154.15 ppb223.24 ppb - 5.06 ppb
20166.16 ppb222.70 ppb - 9.61 ppb
20173.52 ppb222.80 ppb - 4.24 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 trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

NOTE: Hollidaysburg Municipal Authority purchases water from Altoona Water Authority which is required to test for trichloroacetic acid. Sample information shown below was taken by Altoona Water Authority.

Date Lab ID Result
2013-11-123K12025-014.91 ppb
2013-11-123K12025-02ND
2013-11-123K12025-033.00 ppb
2013-11-123K12025-043.73 ppb
2013-11-123K12025-08ND
2013-11-123K12025-051.89 ppb
2013-11-123K12025-062.11 ppb
2013-11-123K12025-0711.9 ppb
2014-02-124B12047-012.89 ppb
2014-02-124B12047-02ND
2014-02-124B12047-031.59 ppb
2014-02-124B12047-042.34 ppb
2014-02-124B12047-05ND
2014-02-124B12047-06ND
2014-02-124B12047-072.14 ppb
2014-02-124B12047-08ND
2014-05-144E14043-014.74 ppb
2014-05-144E14043-02ND
2014-05-144E14043-032.41 ppb
2014-05-144E14043-041.71 ppb
2014-05-144E14043-05ND
2014-05-144E14043-061.12 ppb
2014-05-144E14043-072.12 ppb
2014-05-144E14043-081.60 ppb
2014-08-144H14064-016.79 ppb
2014-08-144H14064-021.60 ppb
2014-08-144H14064-033.85 ppb
2014-08-144H14064-044.08 ppb
2014-08-144H14064-052.60 ppb
2014-08-144H14064-062.77 ppb
2014-08-144H14064-073.79 ppb
2014-08-144H14064-082.88 ppb
2014-11-134K13027-013.88 ppb
2014-11-134K13027-02ND
2014-11-134K13027-032.19 ppb
2014-11-134K13027-042.84 ppb
2014-11-134K13027-05ND
2014-11-134K13027-061.54 ppb
2014-11-134K13027-072.68 ppb
2014-11-134K13027-082.26 ppb
2015-02-12124435622.41 ppb
2015-02-1212443555ND
2015-02-12124435581.09 ppb
2015-02-12124435591.31 ppb
2015-02-1212443556ND
2015-02-1212443557ND
2015-02-12124435601.66 ppb
2015-02-12124435611.82 ppb
2015-05-14127993244.35 ppb
2015-05-1412799317ND
2015-05-14127993211.71 ppb
2015-05-14127993222.49 ppb
2015-05-1412799318ND
2015-05-14127993191.30 ppb
2015-05-14127993201.43 ppb
2015-05-14127993233.49 ppb
2015-08-13131816248.74 ppb
2015-08-13131816171.18 ppb
2015-08-13131816235.04 ppb
2015-08-13131816214.16 ppb
2015-08-13131816181.20 ppb
2015-08-13131816224.16 ppb
2015-08-13131816203.74 ppb
2015-08-13131816192.82 ppb
2015-11-12135581125.92 ppb
2015-11-12135581072.31 ppb
2015-11-12135581113.74 ppb
2015-11-12135581103.18 ppb
2015-11-12135581061.35 ppb
2015-11-12135581092.95 ppb
2015-11-12135581138.32 ppb
2015-11-12135581082.58 ppb
2016-02-11139134232.87 ppb
2016-02-1113913416ND
2016-02-11139134202.21 ppb
2016-02-11139134191.77 ppb
2016-02-11139134181.37 ppb
2016-02-11139134171.27 ppb
2016-02-11139134222.73 ppb
2016-02-11139134212.52 ppb
2016-05-12143086954.26 ppb
2016-05-1214308688ND
2016-05-12143086932.41 ppb
2016-05-12143086942.43 ppb
2016-05-1214308689ND
2016-05-1214308690ND
2016-05-12143086921.83 ppb
2016-05-1214308691ND
2016-08-11147992658.40 ppb
2016-08-1114799258ND
2016-08-11147992634.44 ppb
2016-08-11147992623.09 ppb
2016-08-11147992592.06 ppb
2016-08-11147992602.98 ppb
2016-08-11147992613.01 ppb
2016-08-11147992644.69 ppb
2016-11-10152791246.58 ppb
2016-11-1015279117ND
2016-11-10152791202.01 ppb
2016-11-10152791222.94 ppb
2016-11-1015279118ND
2016-11-10152791191.78 ppb
2016-11-10152791233.75 ppb
2016-11-10152791212.34 ppb
2017-02-16157060484.74 ppb
2017-02-1615706042ND
2017-02-16157060441.38 ppb
2017-02-16157060462.23 ppb
2017-02-1615706043ND
2017-02-16157060451.44 ppb
2017-02-16157060473.50 ppb
2017-02-16157060496.96 ppb
2017-05-11161550293.96 ppb
2017-05-1116155022ND
2017-05-11161550252.24 ppb
2017-05-11161550262.75 ppb
2017-05-11161550231.01 ppb
2017-05-11161550242.02 ppb
2017-05-11161550272.89 ppb
2017-05-11161550283.83 ppb
2017-08-171662490312.6 ppb
2017-08-17166248992.90 ppb
2017-08-17166249027.98 ppb
2017-08-17166249014.12 ppb
2017-08-17166248961.47 ppb
2017-08-17166248971.75 ppb
2017-08-17166249003.30 ppb
2017-08-17166248982.09 ppb
2017-11-16170736995.28 ppb
2017-11-1617073692ND
2017-11-16170736963.55 ppb
2017-11-16170736953.23 ppb
2017-11-16170736932.95 ppb
2017-11-16170736973.59 ppb
2017-11-16170736943.14 ppb
2017-11-16170736983.79 ppb