07/25/2007 Env Bd Packet - Laserfiche WebLink

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TKDA 0ENGINEERS • ARCHITECTS • PLANNERS MEMORANDUM 444 Cedar Street, Suite 1500 Saint Paul, MN 55101 -2140 (651) 292-4400 (651) 292 -0083 Fax www.tkda.com To: James E. Studenski, P.E. Reference: Rice Creek Watershed District Copies To: Proposed Rules City of Lino Lakes, Minnesota Proj. No.: 13809.000 From: Connie J. Taillon, P.E. Routing: Date: July 18, 2007 Below is a summary of proposed changes to the current Rice Creek Watershed District (RCWD) rules. Attached are the documents that provide information on the proposed RCWD rules. They are entitled: 1. Rice Creek Watershed District Rules 2. Rice Creek Watershed District Statement of Need and Reasonableness (SONAR) The major revisions to the present RCWD rules, adopted August 12, 1998, are as follows: Rule C: Stormwater Management Plans Regulation Current: New development, redevelopment, or additions to an existing site less that 2.5 acres for industrial, commercial, and multi -unit residential, are exempt from the rules unless it is near a floodplain or specified waterbody (Paragraph 2 and Paragraph 6(a)). Proposed: The proposed rule would reduce the scope of the exemption so that it would apply to new development, redevelopment, linear projects, or additions to an existing site at least 1 acre in size for industrial, commercial, and multi -unit residential (Paragraph 2(a)). Current: For site redevelopment at which less than 50% of the total site area (including any road right -or- way) will be disturbed, water quality ponding will be required only for areas being disturbed (Section 6(d)). Proposed: The proposed rule would require that water quality requirements will apply to all impervious surfaces if the site redevelopment either (a) would disturb 50% or more of the impervious surfaces or (b) would increase impervious surface by 50% or more. The extent of disturbance is defined as the area of exposure to underlying soils (Paragraph 2(e)). IllCurrent: There is no language in the current rules addressing mill and overlay projects. An Employee Owned Company Promoting Affirmative Action and Equal Opportunity