Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Hampton Shaler Water Authority

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

192

Samples

0

Samples exceeding legal limit (MCL)

167

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.51 ppb3230ND - 8.00 ppb
20153.59 ppb3227ND - 9.00 ppb
20164.08 ppb3227ND - 13.0 ppb
20171.88 ppb3226ND - 6.00 ppb
20181.88 ppb3227ND - 8.00 ppb
20191.77 ppb3230ND - 3.69 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as 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

Date Lab ID Result
2014-02-10021405432.00 ppb
2014-02-10021405442.00 ppb
2014-02-1002140545ND
2014-02-10021405461.000 ppb
2014-02-10021405472.00 ppb
2014-02-10021405481.000 ppb
2014-02-10021405492.00 ppb
2014-02-10021405501.000 ppb
2014-05-07051405952.00 ppb
2014-05-0705140596ND
2014-05-07051405971.000 ppb
2014-05-07051405982.00 ppb
2014-05-07051405992.00 ppb
2014-05-07051406002.00 ppb
2014-05-07051406012.00 ppb
2014-05-07051406022.00 ppb
2014-08-1114081804-0054.38 ppb
2014-08-1114081804-0061.58 ppb
2014-08-1114081804-0072.61 ppb
2014-08-1114081804-0013.16 ppb
2014-08-1114081804-0023.54 ppb
2014-08-1114081804-0032.89 ppb
2014-08-1114081804-0043.11 ppb
2014-08-1214081804-0081.91 ppb
2014-11-07111406817.00 ppb
2014-11-07111406828.00 ppb
2014-11-07111406832.00 ppb
2014-11-07111406842.00 ppb
2014-11-07111406852.00 ppb
2014-11-07111406865.00 ppb
2014-11-07111406875.00 ppb
2014-11-07111406882.00 ppb
2015-02-09124578663.00 ppb
2015-02-09124578674.00 ppb
2015-02-0912457868ND
2015-02-0912457863ND
2015-02-09124578642.00 ppb
2015-02-09124578653.00 ppb
2015-02-0912457861ND
2015-02-0912457862ND
2015-05-08128152423.00 ppb
2015-05-08128152482.00 ppb
2015-05-08128152541.000 ppb
2015-05-08128152602.00 ppb
2015-05-08128152662.00 ppb
2015-05-08128152722.00 ppb
2015-05-08128152782.00 ppb
2015-05-08128152842.00 ppb
2015-08-11131973038.10 ppb
2015-08-11131973043.80 ppb
2015-08-11131973673.20 ppb
2015-08-11131973474.90 ppb
2015-08-11131973486.40 ppb
2015-08-11131973497.00 ppb
2015-08-11131973507.30 ppb
2015-08-11131973516.10 ppb
2015-11-11135727919.00 ppb
2015-11-1113572792ND
2015-11-11135727872.00 ppb
2015-11-11135727896.00 ppb
2015-11-11135727858.00 ppb
2015-11-11135727866.00 ppb
2015-11-11135727905.00 ppb
2015-11-12135727884.00 ppb
2016-02-10139272891.30 ppb
2016-02-1013927294ND
2016-02-10139272992.30 ppb
2016-02-1013927304ND
2016-02-10139272692.30 ppb
2016-02-10139272742.20 ppb
2016-02-10139272791.90 ppb
2016-02-1013927284ND
2016-05-11143269532.90 ppb
2016-05-11143269581.10 ppb
2016-05-11143269634.20 ppb
2016-05-1114326968ND
2016-05-11143269331.60 ppb
2016-05-11143269381.60 ppb
2016-05-11143269431.60 ppb
2016-05-11143269480.600 ppb
2016-08-111482040613.0 ppb
2016-08-111482040910.00 ppb
2016-08-111482041011.0 ppb
2016-08-11148204119.00 ppb
2016-08-111482040710.00 ppb
2016-08-111482040811.0 ppb
2016-08-11148204048.00 ppb
2016-08-11148204059.00 ppb
2016-11-08152954119.00 ppb
2016-11-0815295412ND
2016-11-08152954131.000 ppb
2016-11-08152954081.000 ppb
2016-11-08152954091.000 ppb
2016-11-08152954106.00 ppb
2016-11-08152954066.00 ppb
2016-11-08152954072.00 ppb
2017-02-07157216362.00 ppb
2017-02-07157216421.000 ppb
2017-02-0715721648ND
2017-02-0715721654ND
2017-02-07157216601.000 ppb
2017-02-07157216662.00 ppb
2017-02-07157216722.00 ppb
2017-02-07157216781.000 ppb
2017-05-08161738592.00 ppb
2017-05-0816173865ND
2017-05-0816173870ND
2017-05-0816173877ND
2017-05-08161738831.000 ppb
2017-05-08161738891.000 ppb
2017-05-08161738952.00 ppb
2017-05-08161739011.000 ppb
2017-08-09166435355.00 ppb
2017-08-09166435412.00 ppb
2017-08-09166435472.00 ppb
2017-08-09166435533.00 ppb
2017-08-09166435593.00 ppb
2017-08-09166435654.00 ppb
2017-08-09166435713.00 ppb
2017-08-09166435772.00 ppb
2017-11-08170899506.00 ppb
2017-11-0817089956ND
2017-11-08170899621.000 ppb
2017-11-08170899672.00 ppb
2017-11-08170899742.00 ppb
2017-11-08170899804.00 ppb
2017-11-08170899864.00 ppb
2017-11-08170899921.000 ppb
2018-02-08021812042.00 ppb
2018-02-08021812052.00 ppb
2018-02-08021812061.000 ppb
2018-02-0802181207ND
2018-02-08021812081.000 ppb
2018-02-08021812098.00 ppb
2018-02-08021812105.00 ppb
2018-02-09021812111.000 ppb
2018-05-0918E0876-011.46 ppb
2018-05-0918E0876-021.36 ppb
2018-05-0918E0876-03ND
2018-05-0918E0876-04ND
2018-05-0918E0876-051.44 ppb
2018-05-0918E0876-061.42 ppb
2018-05-0918E0876-071.28 ppb
2018-05-0918E0876-080.730 ppb
2018-08-0818H0365-013.37 ppb
2018-08-0818H0365-023.03 ppb
2018-08-0818H0365-032.71 ppb
2018-08-0818H0365-043.06 ppb
2018-08-0818H0365-052.64 ppb
2018-08-0818H0365-063.14 ppb
2018-08-0818H0365-072.60 ppb
2018-08-0818H0365-082.96 ppb
2018-11-0718K0954-011.49 ppb
2018-11-0718K0954-02ND
2018-11-0718K0954-03ND
2018-11-0718K0954-041.22 ppb
2018-11-0718K0954-051.38 ppb
2018-11-0718K0954-061.63 ppb
2018-11-0718K0954-071.61 ppb
2018-11-0718K0954-081.51 ppb
2019-02-0819B0573-012.13 ppb
2019-02-0819B0573-021.48 ppb
2019-02-0819B0573-03ND
2019-02-0819B0573-04ND
2019-02-0819B0573-051.42 ppb
2019-02-0819B0573-061.52 ppb
2019-02-0819B0573-071.59 ppb
2019-02-0819B0573-081.41 ppb
2019-05-0719E0151-011.54 ppb
2019-05-0719E0151-020.996 ppb
2019-05-0719E0151-032.07 ppb
2019-05-0719E0151-041.18 ppb
2019-05-0719E0151-051.23 ppb
2019-05-0719E0151-061.45 ppb
2019-05-0719E0151-071.31 ppb
2019-05-0719E0151-081.30 ppb
2019-08-0719H0175-012.38 ppb
2019-08-0719H0175-021.61 ppb
2019-08-0719H0175-031.64 ppb
2019-08-0719H0175-041.69 ppb
2019-08-0719H0175-051.91 ppb
2019-08-0719H0175-061.91 ppb
2019-08-0719H0175-071.88 ppb
2019-08-0719H0175-081.75 ppb
2019-11-1219K0166-013.69 ppb
2019-11-1219K0166-021.64 ppb
2019-11-1219K0166-033.17 ppb
2019-11-1219K0166-042.91 ppb
2019-11-1219K0166-052.41 ppb
2019-11-1219K0166-062.53 ppb
2019-11-1219K0166-072.36 ppb
2019-11-1219K0166-082.63 ppb