Overall Rating Silver - expired
Overall Score 55.29
Liaison Lisa Noriega
Submission Date June 29, 2011
Executive Letter Download

STARS v1.0

Yale University
Tier2-3: Non-Potable Water Usage

Status Score Responsible Party
Complete 0.25 / 0.25 Keri Enright-Kato
Sustainability Program Manager
Office of Sustainability
"---" indicates that no data was submitted for this field

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:
A number of buildings on campus harvest rainwater for uses such as flushing. Once example is the sculpture building: A stormwater retention system collects stormwater from the roof of the main Sculpture Building and surrounding landscape which is used for flushing the toilets. The stormwater is initially stored in an outdoor 5,000 gallon tank, a size accommodates water requirements during monthly drought periods. It is then pumped into a 400 gallon indoor tank and disinfected with an ozone treatment, readying it for use in toilets. These measures ensure that the building does not add to the municipal storm water system.

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.