Overall Rating Silver
Overall Score 51.72
Liaison Alex Frank
Submission Date Aug. 1, 2019
Executive Letter Download

STARS v2.1

University of Wisconsin-Madison
OP-22: Water Use

Status Score Responsible Party
Complete 4.48 / 6.00 Alex Frank
Sustainability Analyst
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:
Extremely High

Total water use (potable and non-potable combined):
Performance Year Baseline Year
Total water use 821880156 Gallons 1021240542 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 615603156 Gallons 734897142 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year July 1, 2017 June 30, 2018
Baseline Year July 1, 2006 June 30, 2007

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

FY07 was adopted as the preferred baseline year for STARS data reporting as it represented consistent data availability across the majority of credits.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 7524 7259
Number of employees resident on-site 178 178
Number of other individuals resident on-site and/or staffed hospital beds 0 0
Total full-time equivalent student enrollment 39624 37237
Full-time equivalent of employees (staff + faculty) 17908.30 16255.20
Full-time equivalent of students enrolled exclusively in distance education 0 0
Weighted campus users 45074.73 41978.40

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 13657.39 Gallons 17506.55 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
21.99

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 24271554 Gross Square Feet 20469197 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 25.36 Gallons / GSF 35.90 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
29.36

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 1750 Acres 1831 Acres

Total water use (potable + non-potable) per unit of vegetated grounds:
Performance Year Baseline Year
Total water use per unit of vegetated grounds 469645.80 Gallons / Acre 557750.16 Gallons / Acre

Percentage reduction in total water use per unit of vegetated grounds from baseline:
15.80

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:
---

A brief description of the institution's water recovery and reuse initiatives:

See the article here highlighting recent water conservation efforts at the Charter St. heating plant: https://sustainability.wisc.edu/charter-street-heating-cooling-plant/


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):

See the article here highlighting recent efficient water fixture projects: https://sustainability.wisc.edu/uelmen-green-fund-project/


The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:
---

Data represents potable water usage as measured through utility billing data as well as non-potable (lake) water used in the Walnut St. and Charter St. heating plants.

A few small water usage sources were not included because metered data was not available (this includes small building rainwater cisterns and the well water used at the Arboretum visitor center). Additionally, water usage data for a few buildings outside the institutional boundary are included in these data as individual building meters do not exist (Dairy Forage, WI Historical Society, Fluno Center, Forest Products Lab, and Cereal Crops).

Vegetated acres were based upon estimates of permeable surfaces on campus developed as part of stormwater management activities. Estimates were completed in 2007 and 2015 but only minor changes in permeable surfaces are estimated between 2015 and the performance year (FY18).

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.