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cg Preliminary Plat Application 13-3591 Bayside Meadows Page 2 1.2 The benchmark should be labeled on all plans. 1.3 Drainage calculations for the proposed stormwater pond currently meet City requirements. Proposed runoff rates will be restricted to less than existing runoff rates. However, plan revisions may affect peak discharge rates. Therefore, a Final Stormwater Management Plan should be submitted with the Final Construction Plans. Also , an outlet control structure detail should be included with the Final Plans. 1.4 Drainage calculations must be submitted as part of the Final Plans to confirm sizing of all culverts. 1.5 As part of the Final Plans, Drainage and Utility easements must be placed over the wetland, wetland buffer, stormwater pond , and all ditching and culverts directing runoff to the pond or wetland. The easements should be shown on the Final Plat and Final Street, Utility, and Grading Plans. 1.6 The estimated cost of proposed street and utility improvements must be s ubmitted as part of the Final Plat process for determination of the total Letter of Credit amount. A Letter of Credit written to 150% of cost of improvements must be submitted prior to any land disturbing activities. 1.7 New development triggers the wetland protection ordinance requirements. Therefore, the following should be considered: a. This wetland is listed as a "management 2" wetland in the MCWD's Functional Assessment of Wetlands inventory, which requires a 25 foot buffer and 20 foot s tructure setback. The proposed buffer exceeds and the setback meets City requirements. b. The Wetland Delineation Report lists Canada Thistle, which i s considered to be an invasive species, and should be listed for control in the Vegetation Management Plan. c. Wetland Buffer markers should be placed at the upland boundary of the buffer edge located at lot lines and changes of buffer edge directio n and spaced a maximum 200 feet apart. d. Estimated landscaping costs for vegetation management and buffer establishment will need to be submitted for determination of total Letter of Credit amount as part of the Final Plat process. 1.8 Septic reports indicating suitable primary and alternate sites for on-site sewage treatment sys tems mu st be s ubmitted for review and approval. 1.9 The Conservation M as ter Design Report should be revised to begin removal of invasive species at time of rough grading, instead of relying on the landowners who purchase the lot s. The Home Owner Association document s should also include requirements and procedures for invasive species removal. 1.10 Proposed well loc ations should be shown on the Final Plans. Wells mu st be setback 3 feet minimum from structures and 50 feet minimum from septic systems. 1.11 Payment of park dedication fees mu st be submitted to the City prior to Final Plat approval. 1.12 The Home Owners Agreement (HOA) documents should be submitted for review. The following items should be included: a. Road Maintenance Plan b. Pond Maintenance Plan c. Monument Maintenance Plan d. Invasive Species Control 1.1 3 The applicant will be required to obtain Hennepin County approval and permitting for connection to County Road 84 and installation of the culvert in County Right-Of-Way. A copy of any approvals or permits required should be s ubmitted prior to Final Plat Approval. 1.14 The applicant will be required to obtain Minnehaha Creek Watershed District (MCWD) appro va l and permitting for erosion control. A copy of any approvals or permit s requir ed should be submitted prior to Final Plat approval. Since the development i s proposing le ss than 20% impervious surface, no sto rmwater management permitting from MCWD should be required.