Overall Rating Gold
Overall Score 65.54
Liaison Jim Walker
Submission Date March 2, 2020

STARS v2.2

University of Texas at Austin
OP-21: Water Use

Status Score Responsible Party
Complete 3.74 / 4.00 Jim Walker
Director of Sustainability, Financial, and Administrative Services
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

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 697,924,106,550 Gallons 920,061,443,000 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 540,714,494,000 Gallons 884,925,655,000 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period Sept. 1, 2018 July 31, 2019
Baseline Period Sept. 1, 2008 July 31, 2009

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

The water use baseline year was chosen to represent the last 10 year period.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 7,400 6,900
Number of employees resident on-site 18 16
Number of other individuals resident on-site 211 0
Total full-time equivalent student enrollment 47,296 50,995
Full-time equivalent of employees 12,189 12,142
Full-time equivalent of students enrolled exclusively in distance education 32 0
Weighted campus users 46,655.25 49,081.75

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 11,589,574.46 Gallons 18,029,627.20 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
35.72

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 27,581,856 Gross Square Feet 22,851,399 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 19,603.99 Gallons / GSF 38,725.23 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
49.38

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 140 Acres 140 Acres

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 4,985,172,189.64 Gallons / Acre 6,571,867,450 Gallons / Acre

Percentage reduction in total water withdrawal per unit of vegetated grounds from baseline:
24.14

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

Irrigation usage is being monitored and that information is being shared by an interactive dashboard. Moisture sensors are also being utilized to see moisture level before and after irrigation cycles. Rain water harvesting and reclaimed water is being used and signage is placed around those sites letting students/faculty know about the endeavor.


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

The University of Texas at Austin (UT Austin) has had an active water recovery program since the 1980s. UEM currently saves more than 100 million gallons of potable water each year through innovative uses of alternative water sources, and in the history of the program, the university has recovered more than 1.3 billion gallons. These alternative sources include groundwater and air conditioning condensate water recovered from building cooling systems. Since 2013, UEM has also been using reclaimed water from the City of Austin. This reclaimed water, which is significantly lower in cost than potable water, is highly treated municipal wastewater and is used for making up evaporative losses in some campus cooling towers. UEM is also working with Landscape Services in Facilities Services on a project to use reclaimed water for landscape irrigation. This small site at the northeast corner of Dean Keeton St. and San Jacinto Blvd. will be an ideal area to learn how to use reclaimed water for landscape irrigation.


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