integrated water management at a rapidly growing, drought prone campus sally hoyt, stormwater...
TRANSCRIPT
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Integrated Water Management at a Rapidly Growing, Drought Prone Campus
Sally Hoyt, Stormwater EngineerCindy Shea, Sustainability Director
The University of North Carolina at Chapel Hill
Smart and Sustainable Campuses ConferenceApril 16, 2013
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Water Conservation
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ShowersFaucet AeratorsToilets
LOW FLOW FIXTURES
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Lab Equipment
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Stormwater and Development Boom
• Largest Expansion in campus history
• Number of stormwater control measures on campus rises from 12 to over 200
UNC-Chapel Hill Master Plan Campus Ayers Saint Gross, Architects
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Surface Parking to Mixed Use
• Rams Head: Dining Hall, Recreation Center, Grocery Store, 3 Level Parking Deck, Intensive Green Roof
• Bell Tower: Genome Sciences,
Bell Tower Deck, Central Park
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Green Roofs
Global Education Center (L)Carrington Hall (R)
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Permeable Pavement
Estes Park & Ride (L)NC Botanical garden (R)
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2007 = Worst Drought in History
Exceptional DroughtExtreme DroughtSevere Drought
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Non-Potable Water Uses at UNC
Athletic Field IrrigationToilet Flushing
Landscape IrrigationCooling Towers
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Rainwater Harvesting
NC Botanical Garden (L)Bell Tower Project (R)
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Reclaimed Water
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Seasonality & Peaks
Notes: Based on billing dates; includes UNC Hospitals
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Non-Potable Water Program
Non-Potable Water
Condensate
Reclaimed Water
SurfaceStormwater
Rooftop Rainwater
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FY14 Preliminary Rate - Non Potable Water
NPW
Potable for In
door Use
Potable for C
hillers
(Avg
)
Potable for Ir
rigation
$- $1.00 $2.00 $3.00 $4.00 $5.00 $6.00 $7.00 $8.00 $9.00
$10.00
$5.36 $6.09 $7.10 $9.06
NPW Rate Comparison – Preliminary FY 2014 Effective Rates
Wat
er R
ate
($/1
000
gallo
ns)
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Lesson 1: Set-up Organizational Structure During Design
• System Planning• Manage Operations and Repairs• Utility Structure
Energy Services
• Permitting/Regulatory Compliance• Staff Training• Monthly Reporting and Record-Keeping
EHS
• Preventive Maintenance and Repairs
Plumbing and Electrical Shops
NPW Responsibilities:
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Lesson 2: Don’t rely on the regulations and regulatory reviews.
Initial Construction After Corrected
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Lesson 3: Mind the Gap…
…Between the Civil Engineer and Plumbing Engineer.
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Lesson 4: Develop a Cross-Connection Control Program
TRAINING• Staff• Contractors
PHYSICAL• Labels• Colors• Different Pipe Materials• Signs
TESTING• Initial construction• After renovation
Azsustainability.com
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Lesson 5: What kind of water? Establish consistent terminology
Graywater?We don’t have graywater!
Lessons: Educate owner/designer/staff about non-potable water
Use correct terminology (in code, at site)
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Lesson 6: Take advantage of the opportunity to educate
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Lesson 7: You can change the plumbing code!
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Lesson 8: Stormwater Quality as a Program Driver
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Lesson 9: Don’t ignore your pipes
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Lesson 10 (State Schools): Run your own NPDES MS4 Program
Pollution Detection and Elimination, Erosion Controls, Spill Response, Training
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NPDES Stormwater Program
Street sweeping, mapping, storm drain cleaning and BMP maintenance, inspections
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Stormwater Funding
• ADD IA MAP
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Questions?
http://sustainability.unc.edu