Overall Rating Reporter
Overall Score
Liaison Phil Valko
Submission Date March 6, 2020
Executive Letter Download

STARS v2.1

Washington University in St. Louis
OP-22: Water Use

Status Score Responsible Party
Complete Reporter Phil Valko
Assistant Vice Chancellor for Sustainability
Office of Sustainability
"---" 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’s Aqueduct Water Risk Atlas:
Low to Medium

Total water use (potable and non-potable combined):
Performance Year Baseline Year
Total water use 540,230,950 Gallons 537,893,583 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 540,230,950 Gallons 537,893,583 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year July 1, 2016 June 30, 2017
Baseline Year July 1, 2013 June 30, 2014

A brief description of when and why the water use baseline was adopted:

Fiscal Year 2014 is the earliest year that we have been able to compile actual water use data for both the Danforth and School of Medicine Campuses.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 4,675 4,432
Number of employees resident on-site 21 20
Number of other individuals resident on-site and/or staffed hospital beds 0 0
Total full-time equivalent student enrollment 15,252 14,344
Full-time equivalent of employees (staff + faculty) 13,663 12,488
Full-time equivalent of students enrolled exclusively in distance education 0 0
Weighted campus users 22,860.25 21,237

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 23,631.89 Gallons 25,328.13 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
6.70

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 11,044,168 Gross Square Feet 10,301,568 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 48.92 Gallons / GSF 52.21 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
6.32

Does the institution wish to pursue Part 3 of this credit? (reductions in total water use per acre/hectare of vegetated grounds):
Yes

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 97.17 Acres 109.50 Acres

Total water use (potable + non-potable) per unit of vegetated grounds:
Performance Year Baseline Year
Total water use per unit of vegetated grounds 5,559,647.52 Gallons / Acre 4,912,270.16 Gallons / Acre

Percentage reduction in total water use per unit of vegetated grounds from baseline:
0

A brief description of the institution's water-related behavior change initiatives, e.g. initiatives to shift individual attitudes and practices such as signage and competitions:
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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 (e.g. building retrofits):
---

The website URL where information about the programs or initiatives is available:
Additional documentation to support 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 and complete the Data Inquiry Form.