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• The grading plan should show tree protection, fencing around those areas where <br /> existing trees are to be saved. <br /> • All drainage from the ABRA site will be picked up internally in catch basins and <br /> small diameter storm sewer and directed to the expanded ponding area. <br /> C. Utility Plan <br /> • Sanitary sewer service will require a sampling manhole to be installed. The <br /> sampling manhole should be placed somewhere in the paved surface. It can <br /> replace the cleanout shown in the sanitary sewer service currently. <br /> • Water service is provided by extending a 6-inch service into the building. This <br /> will provide domestic and fire protection. Also, an additional hydrant is teed off <br /> the water service and placed in an island near the gate to the fenced-in parking <br /> area as requested by the Fire Chief. A drainage and utility easement needs to be <br /> added to the final plat over the water service to the hydrant. All water mains <br /> containing hydrants are considered public so that the city can maintain and <br /> operate the hydrants to ensure their workability in case of fire. <br /> D. Miscellaneous <br /> • The project will disturb more than one acre of land. This will require a NPDES <br /> construction permit from the Minnesota Pollution Control Agency. As part of <br /> this permit, a Surface Water Pollution Prevention Plan (SWPPP) will be required. <br /> The SWPPP will need to be submitted, reviewed and approved by the city. <br /> Many of the components of this SWPPP are included in the notes on the grading <br /> plan. Attached is a checklist prepared by the city, listing the SWPPP comments; <br /> this can be used by the developer's engineer to review and ensure that all <br /> components are included. <br /> • Because of the nature of this proposed business, the SWPPP should address <br /> storage of chemicals on site and the storage of vehicles which may have been <br /> damaged in an accident and potentially leaking fluids, as well as any other <br /> potential sources of surface water pollution from the site. <br /> • The project proposes to create more than one acre of new impervious surface <br /> area and therefore, is required to meet the water quality treatment requirements <br /> of the NDPES construction permit. Calculations need to be submitted to show <br /> these requirements are met. <br /> If you have any questions regarding any of these comments, please call. <br /> Sincerely, <br /> Howard R. Green Company <br /> Terry J. Maurer, P.E. <br /> s:\PLANNING\Cue Files\2004\CI:04-19 PlanScape Panners\7 14 04 Engineer's rnenco.doc <br />