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<br /> Ramsey-Washington Metro <br /> 2665 noel Drive <br /> Liftie Canada, ~~4 5511"? <br /> District (651) 792-7950 <br /> fax: (651) 792-7951 <br /> entail: erffiice~rwmwd.rsr°g <br /> ~ m vuuebsite: wvuw.rv+rrnwd.arg <br /> September 8, 2010 <br /> Joseph T. Radach, P.E. <br /> Carlson Professional Services, Inc. <br /> 248 Apollo Drive, Suite 100 <br /> Lino Lakes, MN 55014 <br /> Dear Mr. Radach, <br /> According to our phone conversation this morning, the area of distw~bance proposed for the <br /> Prewire Specialists site in Little Canada will be less than one acre. Therefore, a grading permit <br /> from Ramsey-Washington Metro Watershed District (RWMWD) is not required. <br /> Disturbance calculations include grading of existing pervious and impervious surfaces. Mill and <br /> overlay areas or activity that does not expose erodible subgrade are not considered disturbed area <br /> according to our rules. <br /> An RWMWD grading permit will be required if the projecC disturbance area reaches one acre or <br /> more. The owner would be required to meet Rule C: Stormwater Management and Rule F: <br /> Erosion and Sediment Control. Also at one acre of a disturbance, an NPDES permit is required <br /> from the Minnesota Pollution Control Agency. <br /> Please contact me if you have additional questions. <br /> Sincerely, <br /> Paige Wein <br /> Permit Inspector <br /> (651) 792-7964 <br /> <br />