Overall Rating Silver
Overall Score 59.76
Liaison Lindsey MacDonald
Submission Date June 6, 2023

STARS v2.2

Western Washington University
OP-21: Water Use

Status Score Responsible Party
Complete 3.15 / 4.00 Ashley Olson
Data Ambassador
Sustainability Engagement Institute
"---" indicates that no data was submitted for this field

Level of ”Physical Risk Quantity” for the institution’s main campus as indicated by the World Resources Institute Aqueduct Water Risk Atlas:
Low to Medium

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 60,255,277 Gallons 69,869,548 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 60,255,277 Gallons 69,869,548 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period July 1, 2021 June 30, 2022
Baseline Period Oct. 1, 2012 Sept. 30, 2013

A brief description of when and why the water use baseline was adopted:
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Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 3,383 3,984
Number of employees resident on-site 0 0
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 14,450 13,960.50
Full-time equivalent of employees 4,635 1,699
Full-time equivalent of students enrolled exclusively in distance education 255 0
Weighted campus users 14,968.25 12,740.63

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 4,025.54 Gallons 5,484.00 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
26.59

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 3,542,025 Gross square feet 3,517,967 Gross square feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 17.01 Gallons per square foot 19.86 Gallons per square foot

Percentage reduction in potable water use per unit of floor area from baseline:
14.35

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 115.97 Acres 0 Acres

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 519,558.50 Gallons per acre 69,869,548 Gallons per acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
99.26

A brief description of the institution's water-related behavior change initiatives:

Part of the institutions behavior and operational program includes encouraging residents to take shorter showers, supporting our grounds crew in irrigation repairs and rain sensors, as well as annual shutdown and inspection of our irrigation system.


A brief description of the institution's water recovery and reuse initiatives:
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A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives:

All of our fixtures are water sense compliant low flow fixtures. Our plumbing shop regularly researches the best fixtures to satisfy user requests with water efficient shower heads. All of our new construction projects are designed with water efficient fixtures.


Website URL where information about the institution’s water conservation and efficiency efforts is available:
Additional documentation to support the submission:
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Data source(s) and notes about the submission:
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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.