Conclusion

Strong stormwater management policies can protect one of our most important natural resources. The reduction of impervious surfaces can increase groundwater recharge and water quality. New strategies such as stormwater utilities can help fund much needed infrastructure repair and stormwater management projects. Conservation design and smart growth make open space and natural resource preservation a design priority rather than an afterthought. The recommended strategies in this paper can help strengthen the existing successful stormwater management ordinances.

Definitions

The definitions are provided by United States Geological Survey (USGS).

Evaporation: The process by which water is changed from the liquid or the solid state into the vapor state. In hydrology, evaporation is vaporization that takes place at a temperature below the boiling point.

Hydrograph: A graph showing stage, flow, velocity, or other property of water with respect to time.

Infiltration: The flow of a fluid into a substance through pores or small openings. It connotes flow into a substance in contradistinction to the word percolation, which connotes flow through a porous substance.

Transpiration: The process by which water is changed from the liquid or the solid state into the vapor state. In hydrology, evaporation is vaporization that takes place at a temperature below the boiling point.

References

American Wick Drain. Green Roof. http://www.americanwick.com/applications/detail.cfm?app_id=18&app_cat_id=4

Buranen, Margaret. 2008. Chicago's Green Alleys. Stormwater: The Journal for Surface Water Quality Professionals 9, no. 7 (October), http://www.stormh2o.com/october-2008/chicago-green-alleys.aspx.

Buranen, Margaret. 2008. Rain Gardens Reign. Stormwater: The Journal for Surface Water Quality Professionals 9, no. 7 (October), http://www.stormh2o.com/may-2008/rain-gardens-management.aspx.

Buranen, Margaret. 2008. University Roofs Go Green. Stormwater: The Journal for Surface Water Quality Professionals 9, no.7 (October), http://www.stormh2o.com/october-2008/green-roof-design.aspx

Center for Neighborhood Technology. A Sustainable Community-Based Approach to Reducing Non-Point Source Pollution in the Village of Bellwood, Illinois. http://www.cnt.org/natural-resources/demonstration-projects/bellwood-case-study

Chicago Department of Transportation. Green Alley Handbook. City of Chicago. City of Chicago Green Alleys Program
City of Bloomington Stormwater Credit Manual. Revised January 2006.

Committee on Reducing Stormwater Discharge Contributions to Water Pollution. Urban Stormwater Management in the United States. National Academy of Sciences. http://www.epa.gov/npdes/pubs/nrc_stormwaterreport.pdf

Dietz, Michael E and John C. Clausen. A Field Evaluation of Rain Garden Flow and Pollutant Treatment. Water, Air and Soil Pollution. 2005. http://www.springerlink.com/content/700500546046v462/fulltext.pdf

Department of Water Management. Managing Storwmater at Home: A How-To Guide for Chicago Residents. City of Chicago. http://egov.cityofchicago.org/webportal/COCWebPortal/COC_ATTACH/ManagingStormwater_Home.pdf
Flood Smart. Flood Facts. National Flood Insurance Program. http://www.floodsmart.gov/floodsmart/pages/flood_facts.jsp

Hoskins, Mark. "Stormwater Utilities in Illinois?"

Juhl, Arlan. A History of Flood Control and Drainage in Northeastern Illinois. Illinois Department of Natural Resources: Office of Water Resources. http://dnr.state.il.us/owr/chicago.htm

Langbein, W.B. and Kathleen T.Iseri. Science in Your Water Watershed: General Introduction and Hydrologic Definitions. United Sates Geological Survey. http://water.usgs.gov/wsc/glossary.html

Metropolitan Water Reclamation District of Greater Chicago. http://www.mwrdgc.dst.il.us/

Penn State University Center for Green Roof Research. http://web.me.com/rdberghage/Centerforgreenroof/Home.html

Office of Water Resources. Chicago Water Management in the 19^th Century. Illinois Department of Natural Resources. http://dnr.state.il.us/owr/chicago.htm

Office of Water Resources. Our Mission and Duties. Illinois Department of Natural Resources. http://dnr.state.il.us/OWR/aboutus.htm

Peck, Steven W and Jeffrey L Bruce. Green Roof Design 101. Toronto, ON, Green Roofs for Heatlhy Cities. 2007.

Prairie Crossings. A Conservation Community. http://www.prairiecrossing.com/pc/site/index.html

Risk Management Research. Green Roof Research Project Studies Stormwater Absorbency. USEPA. http://www.epa.gov/ORD/NRMRL/news/news042006.html.

Smart Growth. United States EPA. http://www.epa.gov/dced/index.htm

Stream Corridor Resoration. Principles, Processes and Practices. Federal Interagency Stream Restoration Working Group. http://www.nrcs.usda.gov/Technical/stream_restoration/newgra.html

Stormwater Management Division. DuPage County Stormwater Management Ordinance: Section 15-111.3.i. DuPage County. http://www.dupageco.org/stormwater/ordinance.pdf

Town of Fishers: Stormwater Fees. Frequently Asked Questions Regarding Stormwater Utility Fees. Town of Fishers. http://www.fishers.in.us/department/division.asp?fDD=11-153
Urban Watershed Management Research Group. Wet Weather Flow. USEPA. http://www.epa.gov/ednnrmrl/researchtopics/wetweatherflow/index.htm

Water Planning Division. Result of the Nationwide Urban Runoff Program: Executive Summary. United States Environmental Protection Agency. December 1983