Laserfiche WebLink
Preliminary Plat Application <br />Orchard Hill <br />Page 2 <br /> <br />H:\ORNO\C13120357\z_Orchard Hills\OrchardHills_PrePlatReview_2020-08-03.docx <br /> <br />f. The site is adjacent to Long Lake Creek. The Comprehensive Long Lake Creek Feasibility <br />Study identified 4 separate locations along this site with bank erosion requiring <br />stabilization ($55,000 estimated potential improvements) and 2 wetlands for potential <br />restoration ($1,150,000 estimated potential improvements). These projects would reduce <br />the pollutant discharge downstream and help meet TMDL goals for Tanager Lake. <br />Therefore, the City should consider potential improvements that can be completed in <br />conjunction with development improvements accordingly. At a minimum, access should <br />be provided for potential future improvements. In addition, Minnehaha Creek Watershed <br />District (MCWD) should be engaged with discussion regarding a potential partnership to <br />fund and construct improvements identified in the study. <br />2. Final Plans should include the following: <br />a. Grading, Drainage, and Erosion Control Plan <br />b. Street Construction Plan <br />c. Landscape and Restoration Plan (including invasive species removal) <br />d. SWPPP meeting NPDES requirements <br />3. The applicant will be required to obtain Minnehaha Creek Watershed District (MCWD) <br />approval and permitting. A copy of any approvals or permits required should be submitted <br />prior to Final Plat approval. <br />4. The applicant will be required to obtain a General Construction Permit (NPDES) to discharge <br />stormwater associated with construction activity since more than 1 acre will be disturbed. A <br />copy of the permit should be submitted prior to any land disturbing activity. <br />5. The applicant will be required to submit a Maintenance Agreement for all stormwater <br />management structures and facilities. The agreement must define maintenance responsibilities <br />following completion of project, specify types and frequencies of inspection and maintenance <br />activities, designate who will conduct inspection and maintenance activities, and outline <br />reporting requirements. <br />6. Drainage and Utility Easements msut be provided as follows: <br />a. Over all stormwater management facilities used to meet regulatory requirements. <br />b. Over all wetland and buffers. <br />c. All swales and piping providing drainage for multiple properties. <br />d. 5’ along all side lot lines, unless adjacent to Development boundary. <br />e. 10’ along all front lot lines, rear lot lines, and adjacent to Development boundary. <br />7. Well locations must be indicated on the site plan to confirm adequate separation distance to <br />septic facilities. <br /> <br /> <br />If you have any questions or comments, please contact me to discuss. <br /> <br />Sincerely, <br />Bolton & Menk, Inc. <br /> <br />Robert E. Bean, Jr., P.E. <br />Water Resources Engineer <br />