Water Sustainability at PLU

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How does PLU water use fit into the water cycle?
From http//www.plw.coop/index.jsp
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Where the water goes
We use water in sinks, toilets, showers and on
the grounds, and we change its quality
Kohler, 2004
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Fromhttp//www.co.pierce.wa.us/pc/abtus/ourorg/pw
u/envsvcs/sewer/ccwtp.htm
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What is Sustainability?

• Brundtland Report (1987)
• Sustainable development meets the needs of the
  present without compromising the ability of
  future generations to meet their needs.

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• Why practice sustainability?
• Practical modeling of leadership, service, and
  care. . .
• Monetary savings
• Community relations
• Safety
• Environmental wellbeing
• Public health
• Population/resource use concerns

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Campus Water Use and Rainfall

• Criteria for sustainable water use
• Local supply
• Rainfall as measure
• Quality after use same or higher than prior to
  use

(Ogden, 2003)
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PLU Water Availability and Direct Use
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Morken BuildingLEED Certified Gold

• Reduced and Native Landscaping
• Waterless Urinals
• Rain Stores
• Test of Permeable Concrete for Sidewalks
• Geothermal Heating/Cooling System
• Extensive use of Day Lighting Applications
• Future Electric Vehicle Charging Stations

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Dining Services Renovation
Kohler, 2004
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Retrofitting Residence Halls

• Stuen Hall Renovation (Summer 2003)
• 0.5 gpm Aerators in Sink Faucets
• 2 gpm Shower Heads
• 1.6 gpm Urinals
• 2-3 gpm Toilet Flush-ometer
• Permeable Walkway

Ordahl Hall was renovated in Summer 2004 Xavier
also was renovated using water saving fixtures
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Hidden water use--Products
50,000 gallonsrayon for an average living room
carpet 40,000 gallonssteel for one
automobile 16,000 gallonston of paper 1,500
gallonsbarrel of beer 1,000 gallonspound of
food 100 gallonspound of cotton 24 gallonspound
of plastic
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What about the water we use to generate
electricity?
Electricity--16 million KWh/year Requires
336,000 acre-ft of water Water used to generate
electricity is over 1000 times what we use
directly out of the tap
Photo from Army Corps, 2002
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Environmental Studies Capstones

• Residence Hall water use/attitudes
• Low Impact Development street design
• Campus composting
• For the Earth. . . (campus sustainability plan)
• http//www.plu.edu/sustain

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Pond Area Renovation
Kohler, 2004
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Partially funded by The Russell Family Foundation
For more information about Sustainability at PLU
visit http//www.plu.edu/sustain