Overall Rating Silver
Overall Score 53.49
Liaison Julia Angstmann
Submission Date Dec. 20, 2021

STARS v2.2

Butler University
OP-21: Water Use

Status Score Responsible Party
Complete 4.00 / 4.00 Taylor Korn
Campus Engineer
University Operations
"---" 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

Part 1. Reduction in potable water use per person 

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 164,945.55 Cubic meters 243,185.15 Cubic meters

Potable water use:
Performance Year Baseline Year
Potable water use 154,570.26 Cubic meters 221,593.88 Cubic meters

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period June 1, 2020 May 31, 2021
Baseline Period June 1, 2015 May 31, 2016

If end date of the baseline year/period is 2004 or earlier, provide:

A brief description of when and why the water use baseline was adopted:
Best and earliest data available.

Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 2,903 2,045
Number of employees resident on-site 11 7
Number of other individuals resident on-site 15 17
Total full-time equivalent student enrollment 5,828 4,371
Full-time equivalent of employees 1,069 1,144
Full-time equivalent of students enrolled exclusively in distance education 98 0
Weighted campus users 5,842.75 4,666.25

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 26.46 Cubic meters 47.49 Cubic meters

Percentage reduction in potable water use per weighted campus user from baseline:
44.29

Part 2. Reduction in potable water use per unit of floor area

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 289,996.71 Gross square meters 194,120.91 Gross square meters

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 0.53 Cubic meters per square meter 1.14 Cubic meters per square meter

Percentage reduction in potable water use per unit of floor area from baseline:
53.31

Part 3. Reduction in total water withdrawal per unit of vegetated grounds 

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 87 Hectares 82.96 Hectares

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 1,895.77 Cubic meters per hectare 2,931.34 Cubic meters per hectare

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
35.33

Optional Fields 

A brief description of the institution's water-related behavior change initiatives:
New standard for motion activated faucets in new construction and renovation.

A brief description of the institution's water recovery and reuse initiatives:
Butler builds rain gardens when possible in areas where flooding occurs.

A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives:
Low flow restroom fixtures, motion sense faucets, dual flush toilets, energy star (or equivalent performance) appliances, new standard for higher efficiency DWH as needed replaced.

Website URL where information about the institution’s water conservation and efficiency efforts is available:
---

Additional documentation to support the submission:
---

Data source(s) and notes about the submission:
This data is during COVID, which explains the high reduction in water use as less students and employees were on campus during this timeframe.

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.