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<br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />sewer inlet, the ponds must attain elevation 940~ <br />before they cease being landlocked and can overflow <br />into the New Brighton storm sewer system. If the <br />berming elevation was reduced to the invert eleva- <br />tion of 937.5 feet, the two larger ponds of the <br />Windsor Center site would virtually dry up and the <br />smaller one would retain about 6 inches of water <br />during wet periods. <br /> <br />In summary, old records indicate that the original <br />northwestward clockwise flow from east of Windsor <br />Green to Silver Lake was first blocked by the con- <br />struction of Silver Lake Road. Then the construc- <br />tion of Windsor Court prevented water on the site <br />from flowing eastward to the three potholes with <br />elevations below 930 that are located east and <br />north of Windsor Green. The site must presently <br />collect 5.28 acre feet of storm water before it <br />can discharge into the New Brighton storm sewer. <br /> <br />There has recently been considerable controversy <br />as to whether the ponds on this site are natural <br />or man-made. It is apparent from the above dis- <br />cussion that the natural drainage patterns both <br />on the site and the adjacent areas have been inter- <br />rupted several times by development activity. In <br />any regard, the Minnesota Department of Natural <br />Resources (DNR) has recently declared the Windsor <br />Center ponds to be public waters and subject to <br />DNR regulations as can be noted in Appendix B. <br /> <br />Surface water on the site is from two sources: <br />one is the drainage from a developed area north <br />of County Road E which should be intercepted by <br />two catch basins on the south shoulder of County <br /> <br />I <br />I <br /> <br />III-9 <br />