Our mission is to protect, manage and improve the water resources of the Capitol Region Watershed District.
1410 Energy Park Drive, Suite 4 St. Paul, MN 55108
INSIDE
651-644-8888 651-644-8894 fax
2 When It Rains It Pours 3 Raingardens Looking Good
www.capitolregionwd.org
3 What’s in the Water? 4 Greening Your Garage
Capitol Region Watershed District Fall 2007
CRWD Watershed Rules: A Requirement to Protect n urban areas like the cities within Capitol Region Watershed District, there is significant development and redevelopment of land: the creation of condominiums, retail stores, municipal buildings and parking lots creates a constant buzz of construction throughout the District.
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Greening Your Garage A Green Roof workshop hosted by Capitol Region Watershed District and Ramsey Washington Metro Watershed District
Monday, October 15, 6:30-8:30 pm Capitol Region Watershed District 1410 Energy Park Drive, # 4, St. Paul
What’s a green roof? The term “green roof” refers to a vegetated roof cover made up of living plants, a growing medium, a drainage layer and a waterproofing membrane. Green roofs provide retention, filtration, cooling and volume reduction of stormwater. Green roofs also minimize impervious land coverage and extend the life of the roof. For more information about green roofs, visit Minnesota Green Roofs Council at http://www.mngreenroofs.org.
Workshop is free of charge. Pre-registration is required. Contact Elizabeth at 651-644-8888 or elizabeth@capitolregionwd.org.
This workshop is presented by RoofBloom, a resource for homeowners interested in having a green roof on their garage, porch, shed or other small outbuilding.You’ll learn all about small green roofs - their benefits and design considerations, and how to install and maintain your own. RoofBloom is a collaboration of Minnesota Green Roofs Council, Cermak Rhoades Architects and Emmons and Olivier Resources.
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Kelley also inspects sites to ensure that stormwater management devices are properly installed. Once a project is complete, a final inspection is conducted and the stormwater management devices are cleaned out before the permit is closed, followed by annual inspections to ensure the owner is maintaining the system to function as designed. In 2003,The Center for Watershed Protection in Washington D.C. showed that when an area is more than 25% paved, the water bodies in that watershed are severely degraded – water quality is significantly diminished and habitat condition is poor.With more than 40% impervious cover in the Capitol Region Watershed District, our lakes and streams need all the protection we can provide. Enforcement of the Watershed Rules is an important first step in that direction. To view the CRWD Watershed Rules, visit http://www.capitolregionwd.org.
Water quality is directly related to how we use land. So to protect water quality, CRWD adopted Watershed Rules in 2006 to address both short- and longterm stormwater management needs.The Rules require land developers to control runoff pollution from construction sites by protecting areas susceptible to erosion and sediment loss. Equally important is that The Rules require development projects to use permanent controls for postconstruction stormwater management through a variety of technologies.
“Swirl separators” like this one are permanent BMPs that treat stormwater on site. This device allows sediment to settle out of stormwater before it enters the storm drain system.
The Permitting Program ensures both short-term and long-term stormwater management.
be present in sediment, further contaminating waterways. Sediment is also a source of nutrient pollution since phosphorus adheres to soil particles. Excess nutrients lead to algae overgrowth which depletes oxygen. Requirement to Protect
A Dirty Problem
With the long-term health of our watershed at stake, the District set out to Polluted runoff is a serious threat to develop and adopt science-based water quality.When it rains, water travels across hard surfaces like roads and parking Watershed Rules that would be reasonable to implement, consistent with lots carrying street pollution directly to requirements of neighboring Ramsey lakes and streams via storm drains. On Washington Metro construction sites, the Watershed District, and biggest pollution culprit that would ultimately is sediment…dirt. Impervious surfaces: protect our surface Sediment pollution Land cover that does waters.The Watershed clouds water and prevents not allow water to Rules went into effect on light from penetrating to October 1, 2006. infiltrate: streets, sideunderwater plants. It may also smother bottomwalks, roofs, driveways To carry out the dwelling plants, a food Watershed Rules, the and parking lots. source for aquatic life. District created a Toxic materials may also
Permitting Program which requires developers to obtain a permit for projects larger than one acre, and provides inspection and enforcement of the permit requirements. CRWD Permitting Coordinator Forrest Kelley says, “Around 90% of our sites are in compliance at any given time. Once contractors are reminded how erosion and sediment control relate to water quality, most of them are willing to maintain the BMPs [best management practices] on their sites to stay in compliance.Without enforcement, however, erosion control is often overlooked.” When a developer applies for a permit, Kelley reviews the proposal and assists in interpreting the District Watershed Rules. After the permit is approved by the CRWD Board of Managers, routine inspections are conducted to make sure erosion controls are maintained.
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Capitol Region Watershed District 1410 Energy Park Drive, Suite 4 • St. Paul, MN 55108 • 651-644-8888 • www.capitolregionwd.org