Overall Rating Silver - expired
Overall Score 47.09
Liaison Tom Hartzell
Submission Date June 28, 2017
Executive Letter Download

STARS v2.1

Calvin University
OP-22: Water Use

Status Score Responsible Party
Complete 1.52 / 4.00 Jack Phillips
Mechanical Director
Physical Plant
"---" 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 --- 67,017,046 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 40,227,440 Gallons 46,981,880 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year Jan. 1, 2015 Dec. 31, 2015
Baseline Year Jan. 1, 2009 Dec. 31, 2009

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

The baseline year was selected because it is after major renovations and building construction. The baseline year is recent enough to capture reliable data from the past and assess progress on sustainability efforts.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 2,189 2,284
Number of employees resident on-site 11 10
Number of other individuals resident on-site and/or staffed hospital beds 18 0
Total full-time equivalent student enrollment 4,104 3,983
Full-time equivalent of employees (staff + faculty) 781 816
Full-time equivalent of students enrolled exclusively in distance education 13.90 0
Weighted campus users 4,221.33 4,172.75

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 9,529.58 Gallons 11,259.21 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
15.36

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 2,263,247 Gross square feet 2,263,247 Gross square feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 17.77 Gallons per square foot 20.76 Gallons per square foot

Percentage reduction in potable water use per unit of floor area from baseline:
14.38

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 292 Acres 316 Acres

Total water use (potable + non-potable) per unit of vegetated grounds:
Performance Year Baseline Year
Total water use per unit of vegetated grounds 0 Gallons per acre 212,079.26 Gallons per acre

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

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):
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The website URL where information about the programs or initiatives is available:
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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.