Know Your Environment. Protect Your Health.

Benzene

Manchester Water Department

Benzene is a known human carcinogen. It also damages blood cells and the nervous system. Emissions from petroleum processing, hazardous waste landfills and underground storage tanks contaminate drinking water with benzene. Read More.

To protect against cancer risks, California set a public health goal for benzene in drinking water at 0.15 parts per billion, 30 times lower than the federal legal limit of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

 

98

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND170ND
2019ND160ND
2020ND160ND
2021ND160ND
2022ND160ND
2023ND170ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.15 ppb

The EWG Health Guideline of 0.15 ppb for benzene 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): 5 ppb

The legal limit for benzene, established in 1987, 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 benzene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2018-01-08AA82328-VOC1ND
2018-01-08AA82323-VOC1ND
2018-01-08AA82329-VOC1ND
2018-01-09AA82347-VOC1ND
2018-01-09AA82350-VOC1ND
2018-01-09AA82348-VOC1ND
2018-01-10AA82372-VOC1ND
2018-01-10AA82373-VOC1ND
2018-04-10AA83453-VOC1ND
2018-04-10AA83456-VOC1ND
2018-04-11AA83470-VOC1ND
2018-07-17AA84728-VOC1ND
2018-07-18AA84742-VOC1ND
2018-07-18AA84743-VOC1ND
2018-10-16AA85887-VOC1ND
2018-10-17AA85906-VOC1ND
2018-10-17AA85907-VOC1ND
2019-01-15AA86956-VOC1ND
2019-01-15AA86957-VOC1ND
2019-01-16AA86968-VOC1ND
2019-01-16AA86974-VOC1ND
2019-01-16AA86975-VOC1ND
2019-01-17AA86989-VOC1ND
2019-01-17AA86990-VOC1ND
2019-04-23AA88123-VOC1ND
2019-04-24AA88140-VOC1ND
2019-04-24AA88139-VOC1ND
2019-07-08AA89073-VOC1ND
2019-07-08AA89074-VOC1ND
2019-07-10AA89110-VOC1ND
2019-10-08AA90268-VOC1ND
2019-10-09AA90285-VOC1ND
2019-10-09AA90287-VOC1ND
2020-01-21AA91524-VOC1ND
2020-01-21AA91525-VOC1ND
2020-01-21AA91522-VOC1ND
2020-01-21AA91523-VOC1ND
2020-01-21AA91526-VOC1ND
2020-01-22AA91540-VOC1ND
2020-01-23AA91552-VOC1ND
2020-04-14AA92522-VOC1ND
2020-04-14AA92524-VOC1ND
2020-04-15AA92546-VOC1ND
2020-07-07AA93640-VOC1ND
2020-07-07AA93643-VOC1ND
2020-07-07AA93644-VOC1ND
2020-10-13AA95168-VOC1ND
2020-10-14AA95186-VOC1ND
2020-10-14AA95187-VOC1ND
2021-01-12210112-3-04 VOCND
2021-01-20210120-3-06 VOCND
2021-01-20210120-3-05 VOCND
2021-04-12210412-3-02 VOCND
2021-04-12210412-3-04 VOCND
2021-04-12210412-3-05 VOCND
2021-04-12210412-3-01VOCND
2021-04-13210413-3-03 VOCND
2021-04-14210414-1-06VOCND
2021-04-14210414-3-06VOCND
2021-07-14210714-3-04 VOCND
2021-07-14210714-3-05 VOCND
2021-07-14210714-3-06 VOCND
2021-10-12211012-3-05 VOCND
2021-10-12211012-3-04 VOCND
2021-10-13211013-3-06 VOCND
2022-01-04220104-3-04 VOCND
2022-01-05220105-3-05 VOCND
2022-01-05220105-3-06 VOCND
2022-04-13220413-3-04 VOCND
2022-04-13220413-3-05 VOCND
2022-04-13220413-3-06 VOCND
2022-07-06220706-3-05VOCND
2022-07-06220706-4-01VOCND
2022-07-18220718-3-02 VOCND
2022-07-18220718-3-01VOCND
2022-07-19220719-1-06 VOCND
2022-07-19220719-3-03 VOCND
2022-07-19220719-3-04 VOCND
2022-10-11221011-3-04 VOCND
2022-10-12221012-3-05 VOCND
2022-10-12221012-3-06 VOCND
2023-01-17230117-3-03 VOCND
2023-01-17230117-3-04 VOCND
2023-01-19230119-3-06 VOCND
2023-01-31230131-3-07VOCND
2023-04-03230403-3-05VOCND
2023-04-04230404-3-06VOCND
2023-04-05230405-3-04VOCND
2023-07-17230717-3-01VOCND
2023-07-17230717-3-02 VOCND
2023-07-17230717-3-03 VOCND
2023-07-17230717-3-04 VOCND
2023-07-17230717-3-05 VOCND
2023-07-19230719-3-06 VOCND
2023-09-07230907-1-06VOCND
2023-10-02231002-3-04VOCND
2023-10-02231002-3-05VOCND
2023-10-04231004-3-06VOCND