Know Your Environment. Protect Your Health.

Benzo[a]pyrene

Gurdon Waterworks

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.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND30ND
2021ND60ND
2022ND50ND
2023ND30ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-2218025000807ND
2018-01-2218025000707ND
2018-04-2418115005507ND
2018-06-2018172000601ND
2018-06-2018172000501ND
2018-12-0318340005401ND
2019-01-2319024002007ND
2019-04-3019122001707ND
2019-04-3019122001801ND
2019-08-0619220001807ND
2019-11-1819324000207ND
2020-05-1220135001401ND
2020-11-2335594812002ND
2020-11-2335594812003ND
2021-02-0935611249002ND
2021-02-0935611249003ND
2021-04-0521098004007ND
2021-04-0521098004107ND
2021-11-2221328000701ND
2021-11-2221328000601ND
2022-01-1122013002607ND
2022-05-04O197615-PAE-1ND
2022-05-31O198555-PAE-1ND
2022-10-03O202442-PAE-1ND
2022-11-07O203740-PAE-1ND
2023-05-08O208942-PAE-1ND
2023-11-14O213934-PAE-1ND
2023-11-14O213933-PAE-1ND