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05-03-2017 PC
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701 Xenia Avenue South | Suite 300 | Minneapolis, MN 55416 | (763) 541-4800 <br />Building a legacy – your legacy. <br />Equal Opportunity Employer | wsbeng.com <br />K:\03455-220\WR\Plan Reviews\2017-04-13 Ernie Nelson Estates\2017-04-24 Plan Review Memo.docx <br />Memorandum <br />To: Sue Polka – Arden Hills City Engineer <br />From: Maia Harold, Michael Billings – WSB <br />Date: April 25, 2017 <br />Re: Ernie Nelson Estates Application <br />Review Comments <br />WSB Project No. 03455-220 <br />WSB has reviewed the documents provided by Plowe Engineering, Inc. on 04/25/2017 for the Ernie <br />Nelson Estates Application. Documents Reviewed include: <br />11x17 Drainage Areas – Exist (4/17/2017) <br />11x17 Drainage Areas – Prop (4/17/2017) <br />Cover C1 (4/24/2017) <br />Removals C2 (4/24/2017) <br />Civil C3 (4/24/2017) <br />Grading C4 (4/24/2017) <br />Details C5 (4/17/2017) <br />Storm Water Pollution Prevention Plan C6.1 (4/17/2017) <br />Storm Water Pollution Prevention Plan C6.2 (4/17/2017) <br />Storm Calculations 04-11-2017 (4/17/2017) <br />Based on review of the plan and calculations, we offer the following comments. <br />Grading, Drainage, and Erosion Control Comments: <br />1.General <br />a. Existing and proposed drainage and utility easements should be shown, if any. <br />b. Clearing and grubbing limits should be clearly shown. <br />2.Basins and Wetlands <br />a. Identify wetland buffer areas. <br />b.The Normal Water Level (NWL) and the High Water Level (HWL) should be shown for <br />the pond on the plan sheet. The HWL should be shown for the proposed infiltration basin. <br />c.Emergency Overflow (EOF) for both the existing pond and proposed infiltration basin are <br />not shown on the plan sheet. This should be labeled and the flow route clearly displayed <br />on the plan sheet. <br />d. Infiltration basin pretreatment should be identified, if any.
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