Welcome to Water Resources Planning

The Water Resources team works to achieve the City's water quality goals related to source water (surface and ground), drinking water, wastewater, and stormwater. Click the links below to learn about our programs and projects.

	Stormwater See how the City's stormwater management program is developed, implemented, and enforced. The goal of this program is to reduce the amount of pollutants entering the storm drain system.
	Drinking Water Collecting, treating, and distributing high quality drinking water to Ann Arbor residents is a top priority of the Ann Arbor Water Treatment Unit. Staff perform hundreds of tests every day to ensure your drinking water not only meets, but exceeds drinking water standards.
	Wastewater The City's Wastewater Treatment Service Unit is responsible for ensuring the effective collection, treatment, and environmentally-acceptable discharge of wastewater from Ann Arbor and portions of Ann Arbor, Pittsfield, and Scio Townships.
	Rivers and Creeks Look here for resources to help you learn about the condition of water quality throughout the City of Ann Arbor's rivers and creeks.
	Floodplain Management See how the City manages floodplains, regulations for floodplain development, flood insurance information, and tips for staying safe when a flood occurs.
	Data and Information Look here for tools to access rain and stream gauge data.

Current Activities

Stormwater Code Changes
The Malletts Creek Coordinating Committee and City of Ann Arbor staff hosted a public meeting to present and discuss a proposal to amend the City’s stormwater ordinance on Thursday, Nov. 19, 2009. The proposed Stormwater Code Change was approved by Ann Arbor City Council Thursday, Nov. 4, 2010. View more information about the changes and meeting materials here. Also, click here to see how the new Stomwater Code Requirements affect residential construction.

Urban Forest Management Plan
The Urban Forest Management Plan is being developed with extensive public involvement. For more information on urban forestry, the importance of trees for stormwater management, and ways you can get involved in the planning effort, visit the forestry web page or contact Kerry Gray at (734) 794-6430 Ext. 43703 or kgray@a2gov.org.

Allen's Creek Stormwater Initiative
The Washtenaw County Water Resources Commissioner and the City of Ann Arbor are collaborating on a program to identify and implement cost-effective, practical solutions to flooding, erratic flow, and water quality problems in Allens Creek. Individual efforts such as rain gardens/rain barrels will be explored, as well as infrastructure projects: bio-infiltration, constructed wetlands, porous pavement, mechanical treatment, and above and below-ground detention. Partners include: Ann Arbor Public Schools, University of Michigan, Allen’s Creek Watershed Group, Allen Creek Greenway Conservancy, Friends of West Park, Huron River Watershed Council, and Peter Allen & Associates. For more information, visit the project website or contact Harry Sheehan, (734) 222-6851.

Stormwater Hydraulic Model Calibration & Analysis Project
In 2006, the City of Ann Arbor issued an RFP to complete the "Stormwater GIS/Model (SGM) Project." This project consisted of the following five main components:

Collection of stormwater GIS data
Integrate the GIS with the model information and gather general monitoring data
Engage the public and perform preliminary calibration
Gather comprehensive monitoring data and finalize calibration
Analyze modeling results and engage creekshed groups/neighborhoods

Due to available funding, only the first two components of the SGM project were completed in 2007-2008; The GIS stormwater layer was completed and used to develop a base hydraulic model.

In 2012, the City of Ann Arbor will resume this process with the Stormwater Hydraulic Model Calibration & Analysis Project. This project will complete the development of the City of Ann Arbor's base stormwater hydraulic model and provide comprehensive analysis/system recommendations on the stormwater system has been created. The primary goal of this project is for the City of Ann Arbor to have a comprehensive understanding of the City's stormwater system in order to identify potential opportunities and needs for improvement in the stormwater system/network. This multi-year project is anticipated to begin July 2012. To view RFP #813: Stormwater Hydraulic Model Calibration & Analysis Project visit the Procurement Services webpage.Contact Troy Baughman at tbaughman@a2gov.org for more information.

This page is maintained by the Systems Planning Unit and is updated regularly. If you experience any technical difficulties or have suggestions regarding this site, contact the webmaster.

Updated April 30, 2012