05-24-2017 Council Packet - Laserfiche WebLink

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2 of 2 10062 Flanders Court NE – Blaine, MN 55449 – Ph: (763) 780-0450 Fax (763) 780-0452 2. The thickness dimensions of the planting medium on the Bio-filtration detail do not match the elevations provided for each layer. The applicant should verify the material thicknesses required by the Watershed District and revise the detail to eliminate the differences. The detail also calls out for shredded hardwood mulch and plantings per the landscape plan. The landscape plan calls for seeding of the basin and erosion control blanket so we question the need for hardwood mulch. The basin will not be accepted until the vegetation has been established regardless of the planting methods or material used. 3. The 5% iron filings by weight should be added to the fine filter media not into the planting medium Drainage Calculations The drainage calculations submitted are approved and document compliance with the City’s stormwater requirements. General Comments 1. The applicant has provided a copy of a letter providing conditional approval from the Ramsey Washington Metro Watershed District. The applicant should provide a copy of the final permit and National Pollution Discharge Elimination System (NPDES) permit prior to any construction work. 2. Documentation of approved permits must be provided for the impacts in the Ramsey County right-of-way along Rice Street. The applicant has modified the location of the turn around and addressed a number of the comments from our previous review. At this time we would recommend that the Planning Commission approve the development subject to the comments above, any comments from the City Planner and City Staff, and Ramsey County approval. Please contact me if you have any questions regarding the above information at (763) 780-0450 ext. 3.