| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 70.54 |
| Liaison | Tavey Capps |
| Submission Date | Oct. 18, 2013 |
| Executive Letter | Download |
Duke University
OP-T2-46: Non-Potable Water Usage
| Status | Score | Responsible Party |
|---|---|---|
|
0.25 / 0.25 |
Tavey
Capps Environmental Sustainability Director Office of the Executive Vice President |
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indicates that no data was submitted for this field
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Does the institution use non-potable water (e.g., harvested rainwater or graywater) for irrigation and/or other applications?:
Yes
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A brief description of the source of non-potable water and how it is used:
Condensation in University, Medical Center and Health System cooling systems is reclaimed for use in Duke's Chilled Water Plant's cooling towers. Cooling tower blowdown water is sent through an RO system and reused in cooling towers.
Water from the Asiatic Arboretum pond in Sarah P. Duke Gardens is used to water seasonal plants in the terrace beds of the Gardens. Additionally, in the Charlotte Brody Discovery Garden at Duke Gardens, rainwater is collected to water the surrounding landscape. Duke Gardens staff have also hosted workshops focused on rainwater harvesting at home.
The Fitzpatrick Center for Interdisciplinary Engineering, Medicine and Applied Sciences (FCIEMAS), which opened in 2004, has a 70,000-gallon cistern underground to collect rainwater that is used to irrigate the nearly two-acre complex.
Duke has multiple cisterns installed across campus that collectively hold approximately 260,000 gallons of stormwater. Water from cisterns is used primarily for irrigation.
All irrigation water used on Duke's golf course is non-potable stormwater, which is collected from ponds on site.
None
The percentage of irrigation water usage from recovered, reclaimed or untreated sources :
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None
The percentage of building space using water from recovered, reclaimed or untreated sources:
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None
The percentage of water used in utility plants from recovered, reclaimed or untreated sources:
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None
The website URL where information about the program, policy, or practice is available:
Data source(s) and notes about the submission:
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