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EWG's Tap Water Database — 2021 UPDATE

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Benzo[a]pyrene

Lafourche Water District 1

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.

MORE ABOUT THIS CONTAMINANT

 

56

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND140ND

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
2014-02-03AD88683ND
2014-02-03AD88683ND
2014-02-24AD89294ND
2014-02-24AD89294ND
2014-04-14AD90511ND
2014-04-14AD90511ND
2014-10-06AD98270ND
2014-10-06AD98270ND
2014-10-27AD98954ND
2014-10-27AD98954ND
2015-03-3135181766005ND
2015-03-3135181766005ND
2015-06-0835192498004ND
2015-06-0835192498004ND
2015-09-2435208879009ND
2015-09-2435208879009ND
2015-10-1435212325002ND
2015-10-1435212325002ND
2016-03-0135232149001ND
2016-03-0135232149001ND
2016-03-1535234393005ND
2016-03-1535234393005ND
2016-11-1435277515002ND
2016-11-1435277515002ND
2016-11-2935279934001ND
2016-11-2935279934001ND
2017-01-3135292293005ND
2017-01-3135292293005ND
2017-05-0235310221006ND
2017-05-0235310221006ND
2017-10-1635342351004ND
2017-10-1635342351004ND
2017-11-0135345512001ND
2017-11-0135345512001ND
2018-01-2535370415009ND
2018-01-2535370415009ND
2018-02-2635377894001ND
2018-02-2635377894001ND
2018-07-2335406305001ND
2018-07-2335406305001ND
2018-08-2335413196001ND
2018-08-2335413196001ND
2019-01-2935445082001ND
2019-01-2935445082001ND
2019-02-1835449374001ND
2019-02-1835449374001ND
2019-07-2435484855001ND
2019-07-2435484855001ND
2019-08-0135486782001ND
2019-08-0135486782001ND
2019-08-2835494052001ND
2019-08-2835494052001ND
2019-10-0335502721001ND
2019-10-0335502721002ND
2019-10-0335502721001ND
2019-10-0335502721002ND