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MERCURY ADVISORY IN ALAMEDA AND RAFFERTY RESERVOIRS

Released on April 20, 1998

Saskatchewan Environment and Resource Management (SERM) is advising

the public to limit their consumption of fish from Alameda and

Rafferty reservoirs. Samples show high levels of mercury in fish from

both reservoirs.



When the reservoirs were completed in 1992, naturally occurring

mercury in the soil seeped into the reservoirs. This mercury

accumulates in organisms such as insects and minnows which in turn are

eaten by larger fish such as walleye and northern pike.



SERM recognizes four levels of mercury in fish. Fish with mercury

levels below 0.5 parts per million (ppm) are safe for unlimited

consumption. Levels between 0.5 and 1.0 ppm require some consumption

restriction and levels between 1.0 and 1.5 ppm require greater

consumption restrictions. Fish with mercury levels greater than 1.5

ppm should not be consumed at all.



Mercury levels may be harmful to those who eat the fish on a regular

basis. Fish samples from Alameda Reservoir have mercury levels

between 1.0 and 1.5 ppm and only one meal of fish over a two week

period is recommended. Samples from Rafferty Reservoir have mercury

levels from 0.5 to 1.0 ppm and only one meal of fish over a one week

period is recommended. Pregnant women and children are advised not to

eat any fish from either reservoirs.



"Signs will be posted at access points on both reservoirs,

advising anglers of the mercury advisories in effect and the

recommended consumption levels," Bruce Howard, Sport Fish

Specialist said.



This mercury advisory will remain in effect until levels drop

below 0.5 parts per million in all fish tested.



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For more information, contact:



Bruce Howard

Fish and Wildlife Branch

Regina

Phone: (306) 787-2877

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