Laserfiche WebLink
<br />2 of 2 <br /> <br /> <br />10062 Flanders Court NE – Blaine, MN 55449 – Ph: (763) 780-0450 Fax (763) 780-0452 <br /> <br />3. Iron filings should be added to the pond sand media at a rate of 5% by weight <br />to increase the phosphorus removal efficiency. <br />4. Notes should be added for any curb that should be installed as gutter out. <br />Utility Plan <br />1. Ramsey County will need to review and permit the installation of a storm line <br />across the Little Canada Road right-of-way. It may be beneficial to pick up <br />the site to utilize the storm structure on the south side of Little Canada Road <br />to the west of the site. <br />2. If the curb stop is in the bituminous a casting will be required around the curb <br />box top. <br />Drainage Calculations <br />1. Storm water calculations must be submitted to document discharge rates for <br />the 2, 10, and 100 year Atlas 14 storm events are maintained. <br />2. The applicant must provide the area of the hard surface on the site as well as <br />the volume of the filtration basin to ensure compliance with stormwater <br />treatment standards. <br />Details <br />1. The filtration construction detail should indicate the underdrain/draintile be <br />installed at the bottom of the sand media. <br />General Comments <br />1. The applicant was previously informed that a traffic study would be needed <br />as part of the review for the site. Ramsey County provided direction on the <br />specifics of the traffic study and will be reviewing it along with the City and <br />possibly Mn/DOT due to the proximity to the interstate ramps. At this time <br />that traffic study has not been provided. <br />2. A stormwater pond maintenance agreement must be executed with the City <br />to ensure the continued functionality of the biofiltration basin and <br />maintenance of the plants within the basin. <br />The above items should be addressed and the plans and traffic study resubmitted along <br />with the stormwater calculations so that another review can be completed. Please <br />contact me if you have any questions regarding the above information at (763) 780-0450 <br />ext. 3.