| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 68.39 |
| Liaison | Sam Lubow |
| Submission Date | June 29, 2012 |
| Executive Letter | Download |
Stanford University
OP-T2-46: Non-Potable Water Usage
| Status | Score | Responsible Party |
|---|---|---|
|
0.25 / 0.25 |
Jiffy
Vermylen Sustainability Coordinator Sustainability & Energy Management / Office of Sustainability |
Does the institution use non-potable water (e.g., harvested rainwater or graywater) for irrigation and/or other applications?:
A brief description of the source of non-potable water and how it is used:
INDOOR USE OF RECYCLED WATER:
The service area for Stanford's reclaimed-water facility is now more than 1 million GSF. Cooling tower blowdown at the Central Energy Facility provides water for toilet and urinal flushing in the Science and Engineering Quad and Graduate School of Business, as well as several recently opened School of Medicine buildings.
IRRIGATION WITH SURFACE WATER:
Approximately 85% of Stanford's irrigation water comes from
nonpotable lake water collected in two campus
reservoirs. Landscaped areas are irrigated via the university's lake water system and allows Stanford to preserve potable water for domestic, research, academic, and academic support facility use.
COOLING TOWER EFFICIENCY:
Stanford's Central Energy Facility runs water through cooling towers for approximately 20 cycles.
The percentage of irrigation water usage from recovered, reclaimed or untreated sources :
The percentage of building space using water from recovered, reclaimed or untreated sources:
The percentage of water used in utility plants from recovered, reclaimed or untreated sources:
The website URL where information about the program, policy, or practice is available:
Data source(s) and notes about the submission:
The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution or simply email your inquiry to stars@aashe.org.