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<br />.... <br /> <br />. East 10 <br /> First South 28 <br /> First West 7* <br /> Third 44* <br /> City Hall Property 44 <br /> Orono Third Addition North 13 <br /> <br /> <br />* The peak discharge from area 6 is attenuated by a storm drainage pond in the northeast <br />comer of the Country Crossing First Addition. Likewise, the peak discharges from areas 2, <br />9, and 10 will also be attenuated by the large proposed storm drainage pond in Country <br />Crossings Second Addition. <br /> <br />Area 8, the southern portion of Country Crossing First Addition, drains through a separate <br />storm sewer system. This system conveys stormwater to the south, away from the Orono <br />Parkway trunk storm sewer. <br /> <br />FUTURE DEVELOPMENT AND FLOW REGULATION <br /> <br />. <br /> <br />The areas north of Orono Parkway may develop in the future. Development would increase <br />both the volume of runoff and peak discharges to the Orono Parkway trunk storm sewer. <br />These areas include the Sherburne County property across from Country Crossing First <br />Addition and also the future Country Ridge Partnership commercial property to the north of <br />Country Crossing Second Addition (areas 3,5, and 7). <br /> <br />The increased peak discharges and runoff volume will be attenuated through implementation <br />of sedimentation! detention ponds that will reduce the outflow from each area to the discharges <br />listed in Table 2 below. <br /> <br />Table 2. Allowable Discharges <br /> <br />DRAINAGE AREA <br /> <br />ALLOWABLE PEAK <br />DISCHARGE FROM <br />POND <br />loo-YEAR E <br /> <br />Country Ridge Partnership Commercial Development <br />area 3 <br /> <br />22 cfs <br /> <br />. <br /> <br /> <br />10 cfs <br /> <br /> <br />3 cfs <br /> <br />223-1303.oep <br /> <br />Page 2 <br />