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Planning Commission <br />January 5, 2011 <br />Page Two <br />Storm Water Pollution Prevention Plan <br />1. Additional detail should be provided for the inlet protection on the existing <br />loading dock trench drains, as the typical method shown in the plan details <br />will not work. <br />2. Estimated quantities for erosion control items must be provided on the <br />SWPPP. <br />3. A note should be added to the SWPPP indicating a fine for a Contractor not <br />complying with the SWPPP or plans /specifications within an acceptable <br />timeframe. <br />4. A note should be added that requires the Contractor to have a minimum of 1 <br />individual certified in Construction Site Management. <br />5. Note 14 should be modified to be applicable to the St. Jude site. <br />6. The silt fence installation is shown behind the outlet to the first pond area. <br />Inlet protection must be provided at this outlet FES. <br />Miscellaneous <br />1. The landscape plan referred to on sheet C1.2b should be provided for review <br />and comment. The landscaping plan should also address vegetation <br />establishment in the storm water ponding and infiltration areas. <br />2. Storm water calculations must be provided for the 2, 10, and 100 -year storm <br />events along with pipe capacity calculations for review prior to final approval. <br />3. The project disturbance size is over 1 -acre; therefore a Ramsey Washington <br />Metro Watershed permit is required and a copy of the permit should be <br />provided to the City. <br />4. The extension of the existing parking lot to the south and associated retaining <br />wall will result in new improvements over the existing watermain and increase <br />the depth of the watermain in that area. This in turn will increase the cost <br />associated with any future work necessary on the watermain for maintenance <br />and repair. We would recommend that the property owner be required to <br />provide an agreement whereby these future additional costs will be borne by <br />the property owner and not the City. <br />Please contact me if you have any questions regarding the above information at (763) <br />780 -0450 ext. 3. <br />Sincerely, <br />ELFERING ASSOCIATES <br />Lee Elfering, P.E <br />City Engineer <br />cc: Bill Dircks, Public Works Director <br />Ltr- 010511 -PC <br />10062 Flanders Court NE, Blaine, MN 55449 Phone: (763) 780 -0450 Fax: (763) 780 -0452 <br />