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11-22-2004 Council Packet
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11-22-2004 Council Packet
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1/25/2023 3:39:26 PM
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Artificial Circulation/ Iron Addition <br />i <br />PrcxJuce artiftcial circuialion m each layer of <br />lake but maintain thermal stratification <br />5 solar powered up flow circulators evenfy^—^ <br />spaced around the lake <br />4 mixing at or above the thermocline <br />1 over the deepest pari aerating hypolimmon <br />Should improve habitat » <br />Reduce sediment P release ' . <br />Some assertions on milfoil controlmmm <br />Artificial Circulation/ Iron Addition <br />Estimated capital costs • $338,000 <br />Estimated annual O&M costs - $500 <br />Total annualized cost • $24,000 <br />Annualized cost/decrease in TP ($/ug/L) - <br />$1,700 <br />, V-,. <br />.....I <br />Recommendations <br />^ Combination #13, Table -B1 <br />• Artificial circulation with iron addition <br />• Promote BMPs - rain gardens, street <br />sweeping, etc <br />• Detention pood at CLC-3 <br />• Deepen existing pond at CLC>4 <br />• Detention pond at SB>2 |mM
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