City of Ann Arbor - File #: 14-1156

• 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)

Date	Ver.	Action By	Action	Result
10/6/2014	1	City Council	Held and Closed
10/6/2014	1	City Council	Adopted on Second Reading	Pass
9/15/2014	1	City Council	Approved on First Reading	Pass

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 ...