Know Your Environment. Protect Your Health.

Styrene

Mills Mobile Home Park 1&2

Styrene is a volatile cancer-causing chemical used for manufacturing Styrofoam (polystyrene) and other plastics. Releases from industrial production sites and hazardous waste landfills cause styrene contamination in drinking water. Read More.

In addition to increasing the risk of cancer, styrene can also damage the liver and the nervous system. California set a public health goal for styrene in drinking water at 0.5 parts per billion. The federal Maximum Contaminant Level (MCL) allows up to 100 parts per billion of styrene in water, which is 200 times more than the California recommended level.

Click here to read more about carcinogenic VOCs.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND30ND
2020ND30ND
2021ND40ND
2022ND40ND
2023ND50ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.5 ppb

The EWG Health Guideline of 0.5 ppb for styrene 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): 100 ppb

The legal limit for styrene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1970s. This limit may not fully protect against the risk of cancer due to styrene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2019-01-10AE23871ND
2019-09-18AE37405ND
2019-12-03AE40976ND
2020-05-26AE48964ND
2020-08-19AE53092ND
2020-11-04AE56847ND
2021-02-23AE61680ND
2021-05-25AE66392ND
2021-08-31AE71190ND
2021-11-03AE74428ND
2022-03-10AE80559ND
2022-05-26AE84350ND
2022-08-03AE87586ND
2022-10-27AE92192ND
2023-03-06AE98035ND
2023-05-25AF02667ND
2023-08-07AF06654ND
2023-09-26AF09044ND
2023-10-24AF10543ND