01/30/2002 Env Bd Packet - Laserfiche WebLink

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during critical times, then observations can be made of cause and effect. The other issue that was discussed was lake -use regulation. Regulating the use of Lakes in Minnesota is delegated to local govemments. Regulation is achieved through local ordinance establishment. There are two local govemments involved in the issue of regulating use on Peltier Lake. They are the Cities of Lino Lakes and Centerville. The two cities would need to pass joint powers agreement and ordinance. The proposed ordinance would include a no -wake zone in the area to the North of the Southem section lines of Sections 10 and 11. This would be a line east and west starting at the southem boundary of Rehbeins Peltier View Subdivision of Lino Lakes. Biologists at the task force meeting have indicated that we have one, maybe two more chances to save the Heron Rookery. Analysis: Without some action taken very soon, the City of Lino Lakes is in danger of loosing a unique natural resource feature. The Herons start nesting in April, any regulation before this time would ensure the buffer /use needed to encourage the retum of the Colony. Another side point of high -power boat prop use in the area North of the island is that of water quality impact. Normal water depth in this area is registered as 4.5 feet. During low -lake elevation periods, this can be less than 3 feet. Aerial photography shows channeling and tum- around curl in the ski coarse. Sediments are very phosphorous rich in our lakes. The effect of the prop churning of these sediments is that of pumping phosphorous into the water column. Phosphorous is the limiting factor to plant growth in our lakes. Although unverified by phosphorus sampling data, observations made indicated an unusual increase in algae blooms in the lake after skiing events. Options: Proceed with a joint - powers ordinance regulating use of Peltier Lake in the island area. Recommendation: Proceed and process this regulation language as soon as possible.