Laserfiche WebLink
Main Street Village <br />Drainage Review <br />City of Lino Lakes, Minnesota <br />Page 2 July 17, 2007 <br />6. Update the rip rap overflow swale elevation for Pond 100 on Sheet 9 (Grading Plan). <br />07/17/07 This item has been addressed. <br />7. Indicate the high water level for all infiltration basins on the Grading Plan. <br />8. To provide a well aerated, highly porous surface, it is recommended that the soils of the infiltration <br />basin floor be loosened to a depth of at least 12 inches prior to planting. <br />9. Provide a cross - section detail of the infiltration areas on the Plan that includes type and depth of <br />engineered soil. <br />10. Show the location of all inlet protection, along with a detail of the inlet protection, on the Erosion <br />Control Plan. In addition to the locations shown on the Storm Water Pollution Prevention Plan, inlet <br />protection should be placed in existing catch basins located near the construction entrance to the site. <br />11. It is recommended that the stormwater pond bench area be seeded with native vegetation to enhance <br />soil stabilization, nutrient uptake, and wildlife habitat within the pond. <br />12. Submit storm sewer calculations for review when available. <br />13. Pipe capacity of the existing 30 inch storm sewer at Otter Lake Road was checked against inflow <br />values determined in the model, and there appears to be sufficient capacity to convey the 10 -year <br />storm event for the proposed site and existing building located south of the site. <br />14. Submit a copy of the NPDES permit for the City's records when available. <br />15. Approval from Rice Creek Watershed District (RCWD) is required. Submit a copy of the RCWD <br />approved permit when available. <br />Additional Comments (07/17/07) <br />16. Clarify why the total existing area defined in the model is approximately 4 acres less than the <br />total existing area defined in the model dated May 3, 2007. Revise the current existing <br />conditions model so that the total area is equal to the area in the model dated May 3, 2007. <br />17. Existing rates may change due to modifications of the model based on comment 16 above. Rate <br />control requirements will be reviewed when the revised model is submitted. <br />• <br />