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EWG's Tap Water Database — 2021 UPDATE

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Benzo[a]pyrene

City of Chubbuck

Benzo[a]pyrene is a polycyclic aromatic hydrocarbon, or PAH, released from combustion of fossil fuels and waste incinerators. PAHs increase the risk of cancer; damage the immune, nervous and reproductive systems; and can harm developing fetuses.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014N/A00N/A
2015N/A00N/A
2016ND10ND
2017ND40ND
2018ND10ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.007 ppb

The EWG Health Guideline of 0.007 ppb for benzo[a]pyrene 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) 0.2 ppb

The legal limit for benzo[a]pyrene, established in 1992, 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 PAH exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2016-11-30SI61120201ND
2017-03-09SI70308001ND
2017-06-01SI70600802ND
2017-08-22SI70821201ND
2017-11-07SI171105101ND
2018-02-21SI80212801ND
2019-03-28SI90320401ND
2019-04-10SI90408601ND
2019-06-04SI90604901ND
2019-07-10SI90712501ND
2019-07-24SI90732001ND
2019-07-25SI90734601ND
2019-09-04SI90903501ND
2019-10-31SI91031701ND
2019-11-05SI91102401ND