Overall Rating Gold
Overall Score 66.35
Liaison Trevor Ledbetter
Submission Date May 2, 2017
Executive Letter Download

STARS v2.1

University of Arizona
OP-22: Water Use

Status Score Responsible Party
Complete 3.15 / 6.00 Benjamin Champion
Director
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:
High

Total water use (potable and non-potable combined):
Performance Year Baseline Year
Total water use --- 524,205,614 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 447,496,000 Gallons 439,745,000 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year July 1, 2014 June 30, 2015
Baseline Year July 1, 2004 July 30, 2005

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

The baseline was adopted in a previous submission of STARS, and consistent with other baselines adopted for energy and waste. This represents a good overall baseline time period for operations benchmarking.


Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 6,789 5,619
Number of employees resident on-site 28 25
Number of other individuals resident on-site and/or staffed hospital beds 487 487
Total full-time equivalent student enrollment 41,631 34,689
Full-time equivalent of employees (staff + faculty) 12,479 11,616
Full-time equivalent of students enrolled exclusively in distance education 1,074 3,468
Weighted campus users 41,968.25 34,025.75

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 10,662.73 Gallons 12,923.89 Gallons

Percentage reduction in potable water use per weighted campus user from baseline:
17.50

Gross floor area of building space:
Performance Year Baseline Year
Gross floor area 14,721,402 Gross Square Feet 10,154,673 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 30.40 Gallons / GSF 43.30 Gallons / GSF

Percentage reduction in potable water use per unit of floor area from baseline:
29.81

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 108 Acres 125 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 / Acre 4,193,644.91 Gallons / 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:
---

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

Reverse osmosis reject water from the steam make-up treatment is fed to the cooling towers at the CHRP.


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):

Where ever feasible, normal urinals are retrofitted with a flush valve that requires a special tool to flush, and they are flushed only once a day for cleaning. To control odors and uric acid scaling of drain pipes, a microbial innoculant is used in the urinal (Eco Blue Cube®).


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

Data updated February 2016 to cover FY15

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.