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{{alert|This page is an edit and testing page use by the wiki authors. It is not a content page for the Manual. Information on this page may not be accurate and should not be used as guidance in managing stormwater.|alert-danger}}
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[[File:General information page image.png|left|100px|alt=image]]
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[[File:Capitol Region Watershed District HQ 1.jpg|300px|thumb|alt=image of sidewalk and vegetation|<font size=3>Large rain gardens that receive building roof and overflow from interior cistern</font size>]]
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[[File:Capitol Region Watershed District HQ 2.jpg|300px|thumb|alt=image of entrance to building where the capitol region watershed district is located|<font size=3>Interactive watershed exhibit in CRWD’s neighborhood pocket park</font size>]]
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[[File:Capitol Region Watershed District HQ 3.jpg|300px|thumb|alt=image of rainwater capture system and capitol region watershed district building|<font size=3>Recirculating water feature in pocket park fed by filtered and treated rainwater</font size>]]
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[[File:Capitol Region Watershed District HQ 4.jpg|300px|thumb|alt=image of interior of capitol region watershed district building|<font size=3>Rainwater harvest and reuse system including blue pipes for rooftop runoff located in CRWD’s lobby</font size>]]
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[[File:Capitol Region Watershed District HQ 5.jpg|300px|thumb|alt=image of interior of capitol region watershed district building|<font size=3>Watershed artwork in CRWD’s lobby includes an iron sculpture of the Mississippi River watershed</font size>]]
  
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{{alert|Throughout this manual, these green alert boxes identify practices and concepts related to green infrastructure.|alert-success}}
  
==Capitol Region Watershed District Headquarters==
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[https://www.capitolregionwd.org/ Capitol Region Watershed District] (CRWD) is dedicated to protecting, managing and improving the water resources of the District, which includes parts of Falcon Heights, Lauderdale, Maplewood, Roseville and Saint Paul, Minnesota. Over half of the District is comprised of impervious surfaces. The runoff from these surfaces is captured by storm sewer networks that drain into valued local lakes, which in turn ultimately drain into the Mississippi River.
  
Capitol Region Watershed District (CRWD) is dedicated to protecting, managing and improving the water resources of the District, which includes parts of Falcon Heights, Lauderdale, Maplewood, Roseville and Saint Paul, Minnesota. Over half of the District is comprised of impervious surfaces. The runoff from these surfaces is captured by storm sewer networks that drain into valued local lakes, which in turn ultimately drain into the Mississippi River.
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CRWD’s headquarters are at the heart of the District and therefore make an imprint on the local water resources. CRWD moved to the Midway neighborhood of Saint Paul in December of 2018 and renovated the site with exemplary <span title="Green stormwater infrastructure is designed to mimic nature and capture rainwater where it falls. Green infrastructure reduces and treats stormwater at its source while while also providing multiple community benefits such as improvements in water quality, reduced flooding, habitat, carbon capture, etc."> '''green infrastructure'''</span> planning. The new offices at 595 Aldine Street use green building principles, including stormwater management and energy-saving practices, to conserve natural resources and create a healthy workplace. Numerous clean water features such as several large [https://stormwater.pca.state.mn.us/index.php?title=Bioretention rain gardens], tree trenches (<span title="Bioretention is a terrestrial-based (up-land as opposed to wetland) water quality and water quantity control process. Bioretention employs a simplistic, site-integrated design that provides opportunity for runoff infiltration, filtration, storage, and water uptake by vegetation. Bioretention areas are suitable stormwater treatment practices for all land uses, as long as the contributing drainage area is appropriate for the size of the facility. Common bioretention opportunities include landscaping islands, cul-de-sacs, parking lot margins, commercial setbacks, open space, rooftop drainage and street-scapes (i.e., between the curb and sidewalk). Bioretention, when designed with an underdrain and liner, is also a good design option for treating Potential stormwater hotspots. Bioretention is extremely versatile because of its ability to be incorporated into landscaped areas. The versatility of the practice also allows for bioretention areas to be frequently employed as stormwater retrofits.">'''bioretention practice'''</span>), [https://stormwater.pca.state.mn.us/index.php?title=BMPs_for_stormwater_infiltration#Underground_infiltration_systems underground infiltration], and <span title="Permeable pavements allow stormwater runoff to filter through surface voids into an underlying stone reservoir for temporary storage and/or infiltration. The most commonly used permeable pavement surfaces are pervious concrete, porous asphalt, and permeable interlocking concrete pavers (PICP)."> '''[https://stormwater.pca.state.mn.us/index.php?title=Permeable_pavement permeable pavement]'''</span> were added to collect rainwater and allow it to soak into the ground. In addition, a new pocket park with a water feature, native plantings and an interactive educational exhibit were added to the corner of Thomas Avenue and Aldine Street.
  
CRWD’s headquarters are at the heart of the District and therefore make an imprint on the local water resources. CRWD moved to the Midway neighborhood of Saint Paul in December of 2018 and renovated the site with exemplary green infrastructure planning. The new offices at 595 Aldine Street use green building principles, including stormwater management and energy-saving practices, to conserve natural resources and create a healthy workplace. Numerous clean water features such as several large rain gardens, tree trenches and permeable pavement were added to collect rainwater and allow it to soak into the ground. In addition, a new pocket park with a water feature, native plantings and an interactive educational exhibit were added to the corner of Thomas Avenue and Aldine Street.
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The building also includes a rainwater <span title="Rain water harvesting is the practice of collecting rain water from impermeable surfaces, such as rooftops, and storing for future use."> '''[https://stormwater.pca.state.mn.us/index.php?title=Stormwater_and_rainwater_harvest_and_use/reuse harvest and reuse]'''</span> system. All the roof water is collected and directed to a 3,000-gallon cistern in CRWD’s lobby. The water passes through a <span title="Pretreatment reduces maintenance and prolongs the lifespan of structural stormwater BMPs by removing trash, debris, organic materials, coarse sediments, and associated pollutants prior to entering structural stormwater BMPs. Implementing pretreatment devices also improves aesthetics by capturing debris in focused or hidden areas. Pretreatment practices include settling devices, screens, and pretreatment vegetated filter strips."> [https://stormwater.pca.state.mn.us/index.php?title=Pretreatment '''pretreatment''']</span> system that removes all the big particles. Additional treatment is provided to remove finer sediments, particulates and bacteria before the water is used for toilet flushing, bottle washing, spigot use, and the interactive exhibit located in the pocket park. CRWD utilizes a weather forecasting system that predicts rain and coordinates the controlled draw down of the cistern to create room for incoming rainwater. That drawn down water is discharged to a channel on the west side of the building and into the rain garden. This system allows CRWD to capture and clean enough rainwater to supply 75% of the building’s non-potable water needs.
  
The building also includes a rainwater harvesting system. All the roof water is collected and directed to a 3,000-gallon cistern in CRWD’s lobby. The water passes through a pretreatment system that removes all the big particles. Additional treatment is provided to remove finer sediments, particulates and bacteria before the water is used for toilet flushing, bottle washing, spigot use, and the interactive exhibit located in the pocket park. CRWD utilizes a weather forecasting system that predicts rain and coordinates the controlled draw down of the cistern to create room for incoming rainwater. That draw down water is discharged to a channel on the west side of the building and into the rain garden. This system allows CRWD to capture and clean enough rainwater to supply 75% of the building’s non-potable water needs.
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The building’s energy efficient design includes skylights coupled with natural daylight harvesting sensors. The window blinds adjust automatically to maximize use of natural sunlight and minimize use of electricity. A series of solar panels on the garage roof provide 25% of CRWD’s electricity needs. Recycled materials such as carpeting made from recycled fishing nets and wooden panels from Siberian Elm harvested at nearby Willow Reserve have been key elements in the design. Robust recycling and <span title="The product resulting from the controlled biological decomposition of organic materials that has been sanitized through the generation of heat and stabilized to the point that it is beneficial to plant growth"> [https://stormwater.pca.state.mn.us/index.php?title=Compost_and_stormwater_management '''composting''']</span> programs also exist to reduce waste in the office and at meetings or special events hosted by CRWD.
 
 
The building’s energy efficient design includes skylights coupled with natural daylight harvesting sensors. The window blinds adjust automatically to maximize use of natural sunlight and minimize use of electricity. A series of solar panels on the garage roof provide 25% of CRWD’s electricity needs. Recycled materials such as carpeting made from recycled fishing nets and wooden panels from Siberian Elm harvested at nearby Willow Reserve have been key elements in the design. Robust recycling and composting programs also exist to reduce waste in the office and at meetings or special events hosted by CRWD.
 
  
 
'''Year of completion''': 2018<br>
 
'''Year of completion''': 2018<br>
 
'''Location''': 595 Aldine Street, Saint Paul, MN<br>
 
'''Location''': 595 Aldine Street, Saint Paul, MN<br>
 
'''Owner''': Capitol Region Watershed District<br>
 
'''Owner''': Capitol Region Watershed District<br>
'''Designer''': [https://msrdesign.com/ MSR Design] and [https://www.jedunn.com/ JE Dunn]<br>
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'''Contractor''': [https://msrdesign.com/ MSR Design] and [https://www.jedunn.com/ JE Dunn]<br>
'''Building Type''': <br>
 
 
 
 
'''Design Features''':
 
'''Design Features''':
 
* Rain gardens
 
* Rain gardens
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* Solar panels, large bay windows and skylights for natural daylight harvesting, and other energy efficient components
 
* Solar panels, large bay windows and skylights for natural daylight harvesting, and other energy efficient components
  
'''Pretreatment Features''':
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'''Pretreatment Features''': The rainwater capture system includes a pretreatment system consisting of a series of filters to remove big and fine particles <br>
* The rainwater capture system includes a pretreatment system consisting of a series of filters to remove big and fine particles
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'''Total Drainage Area''': Total site and building area is approximately 2 acres<br>
'''Total Drainage Area''':
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'''Total Construction Cost''': $10.7 million for entire building<br>
* Total site and building area is approximately 2 acres
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'''Documented Maintenance Practices''': Green infrastructure practices are inspected in the spring and fall. Plants and mulch within the raingardens are replaced once a year, as needed, and inlets are cleaned 1-2 times per year. The permeable pavement system will receive infrequent vacuuming or sweeping, but the need is expected to be minimal since no sand is applied to parking lots or sidewalks on the property. The rainwater capture system’s carbon filters, filter bags, and UV bulbs are replaced annually.<br>
'''Total Construction Cost''': $10.7 million for entire building
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'''Pollutant Removal''': Pollutant load removal estimates are unavailable, however, the system is designed to treat and infiltrate 100% of the site’s runoff up to the 50-year, 24 hour storm event.<br>
'''Documented Maintenance Practices''':
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'''Access''': Publicly accessible by appointment<br>
 
 
'''Pollutant Removal''':
 
 
 
'''Access''': Publicly accessible by appointment
 
 
 
 
'''Special Design Features''':
 
'''Special Design Features''':
* A large rainwater cistern collects stormwater from the building roof and is used for non-potable uses such as flushing toilets. CRWD utilizes a weather forecasting system that predicts storms and coordinates the controlled draw down of the cistern to create room for incoming rainwater. That water is discharged to a channel on the west side of the building and into the rain garden before storms arrive. This system allows CRWD to capture and clean enough rainwater to supply 75% of our building’s non-potable water needs.
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*A large rainwater cistern collects stormwater from the building roof and is used for non-potable uses such as flushing toilets. CRWD utilizes a weather forecasting system that predicts storms and coordinates the controlled draw down of the cistern to create room for incoming rainwater. That water is discharged to a channel on the west side of the building and into the rain garden before storms arrive. This system allows CRWD to capture and clean enough rainwater to supply 75% of the building’s non-potable water needs.
* A major innovation at the site was the implementation of Minnesota’s first stormwater infiltration project into petroleum-impacted groundwater. This is a relatively new concept, which has gained little traction due to regulatory hurdles and liability concerns. The term “Beneficial Infiltration” was coined through discussions with the MPCA to describe the scenario where directing stormwater through clean native sand could actually reduce the concentration of certain contaminants. This innovation may inspire similar solutions elsewhere, as well as potentially influence policy.
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*A major innovation at the site was the implementation of Minnesota’s first stormwater <span title="Infiltration Best Management Practices (BMPs) treat urban stormwater runoff as it flows through a filtering medium and into underlying soil, where it may eventually percolate into groundwater. The filtering media is typically coarse-textured and may contain organic material, as in the case of bioinfiltration BMPs."> [https://stormwater.pca.state.mn.us/index.php?title=Stormwater_infiltration_Best_Management_Practices '''infiltration''']</span> project into petroleum-impacted groundwater. This is a relatively new concept, which has gained little traction due to regulatory hurdles and liability concerns. The term “Beneficial Infiltration” was coined through discussions with the MPCA to describe the scenario where directing stormwater through clean native sand could actually reduce the concentration of certain contaminants. This innovation may inspire similar solutions elsewhere, as well as potentially influence policy.
  
'''Notable Challenges''': The building is located on a former brownfield site that had to be cleaned up prior to construction. The cleanup included the abatement and selective demolition of the existing MacQueen building, the removal of underground storage tanks and petroleum contaminated soils, and the installation of sub-slab vapor mitigation systems. <br>
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'''Notable Challenges''': The building is located on a former brownfield site that had to be cleaned up prior to construction. The cleanup included the abatement and selective demolition of the existing MacQueen building, the removal of underground storage tanks and petroleum contaminated soils, and the installation of sub-slab vapor mitigation systems.<br>
 
'''Other Benefits''': The building is LEED GOLD certified and include solar panels on the roof of the building, large bay windows and skylights for natural daylight harvesting, and other energy efficient components.
 
'''Other Benefits''': The building is LEED GOLD certified and include solar panels on the roof of the building, large bay windows and skylights for natural daylight harvesting, and other energy efficient components.
  

Latest revision as of 16:55, 25 March 2021

image
image of sidewalk and vegetation
Large rain gardens that receive building roof and overflow from interior cistern
image of entrance to building where the capitol region watershed district is located
Interactive watershed exhibit in CRWD’s neighborhood pocket park
image of rainwater capture system and capitol region watershed district building
Recirculating water feature in pocket park fed by filtered and treated rainwater
image of interior of capitol region watershed district building
Rainwater harvest and reuse system including blue pipes for rooftop runoff located in CRWD’s lobby
image of interior of capitol region watershed district building
Watershed artwork in CRWD’s lobby includes an iron sculpture of the Mississippi River watershed
Green Infrastructure: Throughout this manual, these green alert boxes identify practices and concepts related to green infrastructure.

Capitol Region Watershed District (CRWD) is dedicated to protecting, managing and improving the water resources of the District, which includes parts of Falcon Heights, Lauderdale, Maplewood, Roseville and Saint Paul, Minnesota. Over half of the District is comprised of impervious surfaces. The runoff from these surfaces is captured by storm sewer networks that drain into valued local lakes, which in turn ultimately drain into the Mississippi River.

CRWD’s headquarters are at the heart of the District and therefore make an imprint on the local water resources. CRWD moved to the Midway neighborhood of Saint Paul in December of 2018 and renovated the site with exemplary green infrastructure planning. The new offices at 595 Aldine Street use green building principles, including stormwater management and energy-saving practices, to conserve natural resources and create a healthy workplace. Numerous clean water features such as several large rain gardens, tree trenches (bioretention practice), underground infiltration, and permeable pavement were added to collect rainwater and allow it to soak into the ground. In addition, a new pocket park with a water feature, native plantings and an interactive educational exhibit were added to the corner of Thomas Avenue and Aldine Street.

The building also includes a rainwater harvest and reuse system. All the roof water is collected and directed to a 3,000-gallon cistern in CRWD’s lobby. The water passes through a pretreatment system that removes all the big particles. Additional treatment is provided to remove finer sediments, particulates and bacteria before the water is used for toilet flushing, bottle washing, spigot use, and the interactive exhibit located in the pocket park. CRWD utilizes a weather forecasting system that predicts rain and coordinates the controlled draw down of the cistern to create room for incoming rainwater. That drawn down water is discharged to a channel on the west side of the building and into the rain garden. This system allows CRWD to capture and clean enough rainwater to supply 75% of the building’s non-potable water needs.

The building’s energy efficient design includes skylights coupled with natural daylight harvesting sensors. The window blinds adjust automatically to maximize use of natural sunlight and minimize use of electricity. A series of solar panels on the garage roof provide 25% of CRWD’s electricity needs. Recycled materials such as carpeting made from recycled fishing nets and wooden panels from Siberian Elm harvested at nearby Willow Reserve have been key elements in the design. Robust recycling and composting programs also exist to reduce waste in the office and at meetings or special events hosted by CRWD.

Year of completion: 2018
Location: 595 Aldine Street, Saint Paul, MN
Owner: Capitol Region Watershed District
Contractor: MSR Design and JE Dunn
Design Features:

  • Rain gardens
  • Tree trenches
  • Permeable pavement
  • Pocket park with a water feature, native plantings, and interactive educational exhibit
  • Rainwater capture system
  • Solar panels, large bay windows and skylights for natural daylight harvesting, and other energy efficient components

Pretreatment Features: The rainwater capture system includes a pretreatment system consisting of a series of filters to remove big and fine particles
Total Drainage Area: Total site and building area is approximately 2 acres
Total Construction Cost: $10.7 million for entire building
Documented Maintenance Practices: Green infrastructure practices are inspected in the spring and fall. Plants and mulch within the raingardens are replaced once a year, as needed, and inlets are cleaned 1-2 times per year. The permeable pavement system will receive infrequent vacuuming or sweeping, but the need is expected to be minimal since no sand is applied to parking lots or sidewalks on the property. The rainwater capture system’s carbon filters, filter bags, and UV bulbs are replaced annually.
Pollutant Removal: Pollutant load removal estimates are unavailable, however, the system is designed to treat and infiltrate 100% of the site’s runoff up to the 50-year, 24 hour storm event.
Access: Publicly accessible by appointment
Special Design Features:

  • A large rainwater cistern collects stormwater from the building roof and is used for non-potable uses such as flushing toilets. CRWD utilizes a weather forecasting system that predicts storms and coordinates the controlled draw down of the cistern to create room for incoming rainwater. That water is discharged to a channel on the west side of the building and into the rain garden before storms arrive. This system allows CRWD to capture and clean enough rainwater to supply 75% of the building’s non-potable water needs.
  • A major innovation at the site was the implementation of Minnesota’s first stormwater infiltration project into petroleum-impacted groundwater. This is a relatively new concept, which has gained little traction due to regulatory hurdles and liability concerns. The term “Beneficial Infiltration” was coined through discussions with the MPCA to describe the scenario where directing stormwater through clean native sand could actually reduce the concentration of certain contaminants. This innovation may inspire similar solutions elsewhere, as well as potentially influence policy.

Notable Challenges: The building is located on a former brownfield site that had to be cleaned up prior to construction. The cleanup included the abatement and selective demolition of the existing MacQueen building, the removal of underground storage tanks and petroleum contaminated soils, and the installation of sub-slab vapor mitigation systems.
Other Benefits: The building is LEED GOLD certified and include solar panels on the roof of the building, large bay windows and skylights for natural daylight harvesting, and other energy efficient components.

References and External Links:

This page was last edited on 25 March 2021, at 16:55.