Oct. 27, 2004 ?— elevated arsenic levels for fish in Silver Creek, Summit County.

Aug. 22, 1991 — fish and waterfowl advisory, due to elevated selenium for the Ashley Creek drainage and Stewart Lake in Uintah County.

For additional details, see the state's advisory Web site at www.fishadvisories.utah.gov.

Mercury is a naturally occurring element, but the toxic form found in some waters can result in neurological effects in a developing fetus and in children. The advisory said that any health risks associated with eating the fish are based on long-term consumption and are not tied to eating fish occasionally.

The advisory said there is no health risk associated with mercury for other uses of the reservoirs, streams, rivers or creeks, such as swimming, boating and waterskiing.

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