Overall Rating Silver
Overall Score 49.22
Liaison Paul Scanlon
Submission Date March 4, 2022

STARS v2.2

Slippery Rock University
OP-21: Water Use

Status Score Responsible Party
Complete 4.00 / 4.00 Paul Scanlon
Special Assistant to the President
President's Office/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 Aqueduct Water Risk Atlas:
Low to Medium

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 39,042,000 Gallons 68,810,000 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 39,042,000 Gallons 68,810,000 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period July 1, 2019 June 30, 2020
Baseline Period July 1, 2004 June 30, 2005

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

The water use baseline was adopted to stay consistent with the base year selected for our greenhouse gas emissions inventory program.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 2,738 2,881
Number of employees resident on-site 0 0
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 9,029 7,704
Full-time equivalent of employees 942 826
Full-time equivalent of students enrolled exclusively in distance education 741 141
Weighted campus users 7,607 7,012

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 5,132.38 Gallons 9,813.18 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
47.70

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 2,536,527 Gross Square Feet 1,896,144 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 15.39 Gallons / GSF 36.29 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
57.59

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 547 Acres 512 Acres

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 71,374.77 Gallons / Acre 134,394.53 Gallons / Acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
46.89

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

1,000 gallons of water recycled/reused during the performance year represents the estimated greywater system water use at the Macoskey Center's Harmony House, which recycles/reuses water from one washing machine, one kitchen sink, and one bathroom lavatory/shower. The greywater from these fixtures is recovered and reused to irrigate an outdoor aquatic planting area and meadow.


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

A GESA/ESCO project completed in 2018 included the installation of low-flow water fixtures throughout campus.


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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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.