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Memo to Planning Commission Page 3 <br /> April 17, 1995 <br /> Number of Animals <br /> • With the proposed updating of the swine buildings, Cargill is also proposing <br /> to decrease the overall number of pigs kept at the facility. The following <br /> table highlights the proposed changes. <br /> Current Proposed <br /> Breeding animal inventory 225 180 <br /> Feeder pigs per year (those under 50#) 3,000 3,600 <br /> -Approx. one time capacity 550 600 <br /> Finishing pigs per year (50-250#) 2,500 1,650 <br /> -Approx. one time capacity 800 575 <br /> Due to the proposed changes, Cargill is also required to upgrade their <br /> existing feedlot permit from the Minnesota Pollution Control Agency. Cargill <br /> has already received approval of the upgraded feedlot permit from the <br /> Minnesota Pollution Control Agency. Through the permit the MPCA does set <br /> conditions on the application rate of manure to the surrounding property and <br /> • for general environmental conditions such as release to public waters, etc. <br /> Waste Management <br /> In conjunction with the improved swine facilities, Cargill is also proposing to <br /> upgrade their waste management system. Currently, manure is handled <br /> through three systems. Approximately 25% of waste is handled as a solid <br /> and is spread on the fields weekly. Approximately 25% of the waste is <br /> handled as a liquid pumped from pits under some of the swine buildings. The <br /> remainder is handled as a liquid drained from the buildings to three lined <br /> earthen basins. <br /> The proposed system would enable all the manure to be handled as liquid <br /> through the earthen basins. The upgrade would reduce the frequency of land <br /> spreading, thus, better odor control with less agitating of the waste. Earthen <br /> basins also allow for better timing of when to spread the liquid waste, thus <br /> eliminating spreading of any swine waste on frozen ground. Rainwater <br /> caught in the basins would also assist in dilution of waste, further reducing <br /> the odor potential. Due to the fact that the number of swine will actually be <br /> decreasing with this proposal, staff feels comfortable that the proposed <br /> earthen basin upgrade will be sufficient to handle the manure load. <br /> S <br /> cu95-05-planning/pc <br />