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EWG's Tap Water Database — 2021 UPDATE

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Bromate

Cape Fear Public Utility Authority - Wilmington

Bromate is a carcinogenic disinfection byproduct formed when source waters containing bromide are treated with ozonation or sodium hypochlorite. Studies of laboratory animals show that bromate damages DNA and causes cancer in multiple organs. Click here to read more about disinfection byproducts.

 

75

Samples

1

Samples exceeding legal limit (MCL)

36

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.25 ppb126ND - 14.0 ppb
20150.425 ppb123ND - 2.20 ppb
20160.969 ppb135ND - 3.80 ppb
20171.89 ppb1311ND - 4.80 ppb
20180.700 ppb136ND - 1.70 ppb
20190.775 ppb125ND - 2.50 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 bromate was defined 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. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for bromate, established in 1998, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to bromate exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-07201401080471ND
2014-02-04201402050303ND
2014-03-04201403050699ND
2014-04-01201404020739ND
2014-05-06201405070515ND
2014-06-0320140604049614.0 ppb
2014-07-012014070204811.60 ppb
2014-08-052014080602264.70 ppb
2014-09-022014090309053.20 ppb
2014-10-072014100901291.80 ppb
2014-11-042014110505071.70 ppb
2014-12-02201412030628ND
2015-01-06ND
2015-02-03ND
2015-03-03ND
2015-04-07ND
2015-05-05ND
2015-06-02ND
2015-07-07ND
2015-08-041.60 ppb
2015-09-012.20 ppb
2015-10-061.30 ppb
2015-11-03ND
2015-12-01ND
2016-01-053382255ND
2016-02-023394490ND
2016-03-013408130ND
2016-04-053425564ND
2016-05-0334412831.60 ppb
2016-06-0734676211.50 ppb
2016-07-0534864803.20 ppb
2016-08-0235112353.80 ppb
2016-09-0635400512.50 ppb
2016-10-043558971ND
2016-10-183567520ND
2016-11-013577067ND
2016-12-063599750ND
2017-01-033615085ND
2017-01-1736225801.10 ppb
2017-02-0736337881.50 ppb
2017-03-0736502871.10 ppb
2017-04-0436676661.50 ppb
2017-05-023685996ND
2017-06-0637082051.30 ppb
2017-07-0437264561.80 ppb
2017-08-0137465721.30 ppb
2017-09-0537716423.40 ppb
2017-10-0337918053.30 ppb
2017-11-0738166043.50 ppb
2017-12-0538325514.80 ppb
2018-01-023846212-1 1.70 ppb
2018-01-023846212 1.70 ppb
2018-02-063866169 ND
2018-03-063885209 1.60 ppb
2018-04-033903170 ND
2018-05-013925884 ND
2018-06-053953492 1.000 ppb
2018-07-033980375 1.70 ppb
2018-08-074014304 ND
2018-09-044045574 1.40 ppb
2018-10-024076013 ND
2018-11-064112547 ND
2018-12-044140212 ND
2019-01-024163357 ND
2019-02-054189325 ND
2019-03-054217275 ND
2019-04-024246235 ND
2019-05-074286129 ND
2019-06-044314055 ND
2019-07-024343457 1.70 ppb
2019-08-064377871 1.30 ppb
2019-09-034408097 2.00 ppb
2019-10-014441917 2.50 ppb
2019-11-054477554 1.80 ppb
2019-12-034502669 ND