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WATER GREMLIN PUBLIC HEALTH AS'&..ES:SMENT: PUBLIC. COMMENT DRAFT <br />Potential Health Effects <br />Concentrations detected in well water in Gem Lake are just.above the H R L of 1 ppb and present a very <br />low health risk. Information about the health -effects of 1A.-dioxane comes mainly from studies of <br />laboratory animals.1,4-Dioxane is considered a likely human carcinogen; based on studies of aniina.ls <br />exposed to very high amounts. There. are currently no. human:studies that show a direct link between <br />exposure to 1,4-dioxane: and cancer: The HRL of 1. ppb is based on a negligible cancer risk of one <br />additional cancer in 100,000 people consuming the water on a daily basis for a lifetime.. <br />Frequently Asked Questions <br />Is there more cancer in Gem Lake because of this contamination? <br />We would not expect to see an increase. in cancer in the community from the exposures found:..ln <br />addition, MDH completed an analysis%of the data from the. Minnesota Cancer Reporting System in 2019 <br />and overall cancer rates in the Water Gremlin study area (which encompassed Gem Lake) were. virtually <br />identical to cancer rates in the seven -county Twin Cities. Metro area. <br />Should I get tested for exposure to 1,4-dioxane? Should I see my <br />doctor? <br />1,4-dioxane breaks down in the body and eliminated.quickly—on the order of hours to days. Tests to <br />measure. 1,4-dioxane a metabolites are:not readily available to. physicians. MDH advises that.there is n.o <br />need to go to the doctor solely because of: this: exposure in drinking. water.. There are no <br />recommendations for any increased screening. for cancer or.other health effects. <br />Is it okay for my dogs/cats to drink the well water? <br />Dogs and catsare expected. to have similar health risksas people. <br />Can I water my garden vegetables with rely well water? <br />It is possible that plants watered With well water may be a very minor source of exposure, but this has <br />not been well studied. <br />Minnesota Department of Health f. Site Assessment and Consultation I www.health.state.mn.us. <br />health.hazard@state.mn.us.1 651-201-4897 <br />08/24/21 To obtain this information in a different format call; 65I-201-489Z <br />73 <br />