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EWG's Tap Water Database — 2019 UPDATE

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Benzo[a]pyrene

Chesterfield County Central Water System

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.

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
2013ND40ND
2014ND40ND
2015ND40ND
2016ND40ND
2017ND70ND

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
2012-06-05E120400836ND
2012-06-05E120400833ND
2012-06-05E120400842ND
2012-06-05E120400823ND
2013-04-23E130202491ND
2013-04-23E130202518ND
2013-04-23E130202512ND
2013-04-23E130202503ND
2014-04-22E140308590ND
2014-04-22E140308604ND
2014-04-22E140308584ND
2014-04-22E140308587ND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2015-04-23VA010-DCLSND
2016-04-25E160305654ND
2016-04-25E160305674ND
2016-04-25E160305680ND
2016-04-25E160305673ND
2017-02-21E161203730ND
2017-02-21E161203725ND
2017-02-21E161203720ND
2017-04-19E170304730ND
2017-04-19E170304739ND
2017-04-19E170304732ND
2017-04-19E170304750ND