02-22-2021 Council Packet - Laserfiche WebLink

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Preliminary Plat Application Shoreline Estates Page 2 H:\ORNO\C13120357\z_Shoreline Estates\ShorelineEstates_PrePlatReview_2021-1-19.docx Area Map and calculations should be revised to indicate area bypassing rain garden. i. Soil amendment areas should be in locations not subject to future pedestrian and vehicle traffic and planted with native vegetation. The proximity of proposed amended areas to house pads will most likely result in compaction of the soils over time due to human interaction. Therefore, amended soil locations should be revised or the basin should be expanded to meet MCWD requirements. Potential amendment areas include along the east and west side of the entrance road and the cul-de-sac island. j. A stormwater management plan outlining how the proposed improvements will meet all requirements must be submitted for review prior to Preliminary Plat approval to ensure adequate siting is available for required facilities. 2. Storm sewer sizing calculations must be submitted with correspond drainage area map to verify adequate sizing. 3. Final Plans must include the following: a. Grading, Drainage, and Erosion Control Plan b. Street Construction Plan c. Utility Plan d. Landscape and Restoration Plan (including invasive species removal) e. SWPPP meeting NPDES requirements 4. The applicant will be required to obtain Minnehaha Creek Watershed District (MCWD) approval and permitting. Per correspondence with MCWD, they will require all stormwater runoff management facilities to be installed with initial development. A copy of any approvals or permits required must be submitted prior to Final Plat approval. 5. The applicant will be required to obtain a General Construction Permit (NPDES) to discharge stormwater associated with construction activity since more than 1 acre will be disturbed. A copy of the permit must be submitted prior to any land disturbing activity. 6. The applicant will be required to obtain Hennepin County approval and permitting for connection to CSAH 15. A copy of any approvals or permits required must be submitted prior to Final Plat approval. 7. The applicant will be required to obtain a Sanitary Sewer Extension Permit from the MPCA and MCES. A copy of any approvals or permits required must be submitted prior to Final Plat approval. 8. The applicant will be required to submit a Maintenance Agreement for all stormwater management structures and facilities. The agreement must define maintenance responsibilities following completion of project, specify types and frequencies of inspection and maintenance activities, designate who will conduct inspection and maintenance activities, and outline reporting requirements. The Agreement will be recorded with the County per the City’s approval process. 9. Drainage and Utility Easements msut be provided as follows: a. Over all sanitary forcemain. b. Over all stormwater management facilities used to meet regulatory requirements. c. Over all wetland and buffers. d. Over all soil amendment areas. e. All swales and piping providing drainage for multiple properties. f. 5’ along all side lot lines, unless adjacent to Development boundary. g. 10’ along all front lot lines, rear lot lines, and adjacent to Development boundary. 10. The sanitary service line to be abandoned must be completely disconnected from the existing system to remain in place and capped. All pipes greater than 2” to be abandoned in place must be blown full with sand and the ends grouted shut. 11. Road widths must be listed on the Road Plan. 12. The 15” CMP at Station 1+20 must be replaced with a 15” RCP and existing drainage patterns