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File #: 14-1156    Version: 1 Name: 9/15/14 - Ord to amend Chpt 63 Sec 5-652 - change date of WCWRC Stormwater Rules
Type: Ordinance Status: Passed
File created: 9/15/2014 In control: City Council
On agenda: 10/6/2014 Final action: 10/6/2014
Enactment date: 9/15/2014 Enactment #: ORD-14-22
Title: An Ordinance to Amend Section 5:652 of Chapter 63 (Stormwater Management and Soil Erosion and Sedimentation Control) of Title V of the Code of the City of Ann Arbor (Ordinance No. ORD-14-22)
Attachments: 1. 14-22 Stormwater Management Ordinance Briefed and Approved, 2. 14-22 Stormwater Management Ordinance Briefed.pdf, 3. Ord amend Chpt 63 Sec 5-652 date..pdf, 4. 2014 Rules County Resolution w cover memo DRAFT3..pdf, 5. 14-22 Approval Notice
Title
An Ordinance to Amend Section 5:652 of Chapter 63 (Stormwater Management and Soil Erosion and Sedimentation Control) of Title V of the Code of the City of Ann Arbor (Ordinance No. ORD-14-22)
Memorandum
Your approval is requested to amend Section 5:652 of Chapter 63 of Title V of the Code of the City of Ann Arbor to adopt the revised Rules of the Washtenaw County Water Resources Commissioner (WCWRC) as the standards used for stormwater management by the City of Ann Arbor. The previous Rules of the WCWRC, dated May 15, 2000, are currently cited within Chapter 63. To adopt the new rules only requires changing the reference date within City Code to August 6, 2014.

It is necessary for the City to adopt the Revised Rules of the WCWRC to remain in compliance with the City's National Pollution Discharge Elimination System (NPDES) Permit, which is issued by the Michigan Department of Environmental Quality on behalf of the Federal Environmental Protection Agency (EPA).

This edition of the Rules of the WCWRC continues a stormwater management philosophy that considers stream channel protection and stormwater quality management in addition to flood control. These revisions promote using stormwater as a resource, onsite, where possible, with strategies designed to better mimic the natural hydrology of an undeveloped site by promoting infiltration. Significant information for these Rules was taken from the Southeast Michigan Council of Governments (SEMCOG) Low Impact Development Manual for Michigan. The new rules also incorporate the latest precipitation frequency data issued by the National Oceanic and Atmospheric Administration (NOAA).

The primary things that changed in the regulations:
* PROCESS: MANDATORY PRE-APPLICATION MEETING
o There is now a mandatory pre-application meeting that must include the Owner/applicant, mainly to emphasize the importance of on-site soils to development feasibility and costs. Some of the items in the regulation are ...

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