| Overall Rating | Gold |
|---|---|
| Overall Score | 75.40 |
| Liaison | Mary-Lee Townsend |
| Submission Date | Jan. 16, 2025 |
Western University
OP-3: Water Use
| Status | Score | Responsible Party |
|---|---|---|
|
3.64 / 6.00 |
3.1 Potable water use per person
Performance year for water use:
Peer group:
Potable water from off-site sources:
Reclaimed water from off-site sources:
Other off-site water sources:
Potable water from on-site sources:
Other on-site water sources:
Full-time equivalent student enrollment:
Full-time equivalent of employees:
The Reporting Tool will automatically calculate the following four figures:
Full-time equivalent students and employees:
Annual potable water use per person:
Points earned for indicator OP 3.1:
3.2 Potable water use per square meter
The Reporting Tool will automatically calculate the following two figures:
Points earned for indicator OP 3.2:
3.3 Systems for water recovery and return
Narrative and/or website URL providing an overview of the institution’s on-site rainwater harvesting systems:
Does the institution recover water on-site for reuse?:
Narrative and/or website URL providing an overview of the institution’s on-site water recovery and reuse systems:
The central steam heating plant collects condensate for use for steam production.
Does the institution collect and return water to surface water or groundwater through on-site green infrastructure?:
Narrative and/or website URL providing an overview of the institution’s on-site green infrastructure:
Low impact development (LID) systems are also being implemented to reduce stormwater runoff and increase infiltration of water into the ground during heavy rains or snow melts. Western recently installed its first rain garden in front of the Physics and Astronomy Building. The garden is designed to help handle runoff during storms, and naturally filter salt and other debris from stormwater as it's absorbed into the ground. The garden also helps support biodiversity with native plants, and an improved pedestrian experience of the space with seating to enjoy the garden and nature that visits.
https://sustainability.uwo.ca/Campus/water/wconservation.html
The Reporting Tool will automatically calculate the following figure:
3.4 Ratio of water recovered/returned to total water withdrawal
Narrative outlining the methodologies used to estimate or model the annual volume of water recovered and/or returned on-site:
Condensate return calculations. In 2023, the central steam heating plant used 279,358 m3 of water, only 61,729 m3 was directly from the municipality, the remaining 217,629 was from recovered steam condensate.
Estimated volume of rainwater harvested on-site for storage and use:
Estimated volume of water recovered on-site for reuse:
Estimated volume of water collected and returned through on-site green infrastructure:
The Reporting Tool will automatically calculate the following four figures:
Total water withdrawal:
Ratio of water recovered/returned to total water withdrawal:
Points earned for indicator OP 3.4:
Optional documentation
Additional documentation for this credit:
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.