12/12/2007 P&Z Packet - Laserfiche WebLink

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• • Main Street Village Page 2 November 19, 2007 Drainage Review City of Lino Lakes, Minnesota 11/19/07 This item has been addressed. 4. Indicate the high water level for all infiltration basins on the Grading Plan. 11/19/07 Label the high water elevation of the existing south wetland and wetland mitigation area on the plan. In addition, revise the high water elevation for biofiltration basin 8 and the south wetland to be consistent with the peak elevations in the proposed conditions modeL 5. To provide a well aerated, highly porous surface, it is recommended that the soils of the infiltration basin floor be loosened to a depth of at least 12 inches prior to planting. 6. Provide a cross - section detail of the infiltration areas on the Plan that includes type and depth of engineered soil. 11/19/07 This item has been addressed. 7. Show the location of all inlet protection, along with a detail of the inlet protection, on the Erosion Control Plan. In addition to the locations shown on the Storm Water Pollution Prevention Plan, inlet protection should be placed in existing catch basins located near the construction entrance to the site. 11/19/07 Include a detail of the inlet protection on the plan. 8. It is recommended that the stormwater pond bench area be seeded with native vegetation to enhance soil stabilization, nutrient uptake, and wildlife habitat within the pond. 11/19/07 This item has been addressed. 9. Submit storm sewer calculations for review when available. 10. Submit a copy of the NPDES permit for the City's records when available. 11. Approval from Rice Creek Watershed District (RCWD) is required. Submit a copy of the RCWD approved permit when available. 12. Clarify why the total existing area defined in the model is approximately 4 acres less than the total existing area defined in the model dated May 3, 2007. Revise the current existing conditions model so that the total area is equal to the area in the model dated May 3, 2007. 11/19/07 This item has been addressed. 13. Existing rates may change due to modifications of the model based on comment 16 above. Rate control requirements will be reviewed when the revised model is submitted. 11/19/07 This item has been addressed. Additional Comments (11/19/07) 14. Label the low floor and low opening elevation of the existing bank building on the Grading Nan. • 15. Provide pretreatment of runoff prior to discharging into biofiltration basin 9. 16. It is recommended that trees native to wetlands of the region be planted in the wetland mitigation area.