Laserfiche WebLink
1. The location(s)of concrete washout sites; <br /> 2. The location(s)of inlet protection (if applicable); <br /> 3. The location of trees within the project area and an indication of if they will be protected or <br /> removed. <br /> Stormwater Mana�ement: <br /> The District's Stormwater Management rule is triggered for any redevelopment project with a site size <br /> greater than one acre proposing an increase in impervious surface and disturbs less than 40%of the site. <br /> Because the project proposes a 7,974 square foot increase in impervious surface and disturbs less than <br /> 40%of the site,the District's Stormwater Management rule is triggered. Please submit the following <br /> information to fulfill the criteria of the rule: <br /> 1. An abstraction analysis showing that the project is in conformance with the volume control <br /> requirement of the Stormwater Management rule; <br /> a. The project is required to provide abstraction for 1"of runoff from impervious surface <br /> (664.5 cubic feet); <br /> 2. Provide soil borings in the location of the proposed BMP showing that there is 3 feet of <br /> separation between the bottom of the basin and the groundwater, and the soils are suitable for <br /> infiltration; <br /> 3. Provide calculations showing that the basin will draw down in less than 48 hours; <br /> 4. Provide a detail of the outlet control structure; <br /> 5. Clarify the location of the roof leaders to show how the roof drains to the proposed BMP. <br /> Additional Information: <br /> Per previous conversations with the District's Wetland Specialist,the District understands that you are <br /> working towards submitting the materials mentioned below. Please submit the following documents, <br /> which were required for the 2014 work on the 13`h hole: <br /> 1. Certificate of Compliance closing out the 1997 on-site wetland replacement project. <br /> 2. A recorded declaration and maintenance agreement for the buffers associated with the 2013 <br /> wetland delineation. <br /> As we review your submittals,we may find the need to request additional information,and will so <br /> inform you. If you have any questions please contact me at tdietrich@minnehahacreek.or�or <br /> (952) 641-4518 <br /> Sincerely, <br /> r <br /> � 1 �,..�.,-_ � r <br /> �_..,.- <br /> Tom Dietrich <br /> Permit&Compliance Coordinator <br /> Cc: Kurt D. Quaintance,James R. Hill, Inc. <br /> Melanie Curtis, City of Orono <br /> Christine Mattson, City of Orono <br />