Overall Rating	Gold
Overall Score	82.81
Liaison	Aaron Durnbaugh
Submission Date	April 12, 2023

STARS v2.2

Loyola University Chicago
OP-21: Water Use

Status

Score

Responsible Party

3.83 / 5.00

Aaron Durnbaugh
Director of Sustainability
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 Aqueduct Water Risk Atlas:

Medium to High

Part 1. Reduction in potable water use per person

Total water withdrawal (potable and non-potable combined):

	Performance Year	Baseline Year
Total water withdrawal	95,441,000 Gallons	113,582,000 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	95,441,000 Gallons	113,582,000 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):

	Start Date	End Date
Performance Period	July 1, 2021	June 30, 2022
Baseline Period	July 1, 2007	June 30, 2008

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:

We use 2008 as our baseline for all measures.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	4,960	3,753
Number of employees resident on-site	19	25
Number of other individuals resident on-site	0	0
Total full-time equivalent student enrollment	15,818	13,923
Full-time equivalent of employees	2,835	2,639
Full-time equivalent of students enrolled exclusively in distance education	2,215	114
Weighted campus users	13,573.25	13,280.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	7,031.55 Gallons	8,552.54 Gallons

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

17.78

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	4,664,622 Gross square feet	3,647,900 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	20.46 Gallons per square foot	31.14 Gallons per square foot

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

34.29

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	28.70 Acres	26.90 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	3,325,470.38 Gallons per acre	4,222,379.18 Gallons per acre

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

21.24

Optional Fields

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

We have systematically retrofitted our facilities for water efficiency and engaged in education and outreach towards this end. In 2014/15 we did a research project on behavior vs. retrofit interventions in the residence hall setting.
Our Water Bounty program rewards the reporting of water leaks anywhere on campus.
WaterWeek is an annual week of programming on water-related issues.

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

Loyola has installed permeable pavers, drought-tolerant landscaping, rain-water collection cisterns, and living rooftops that all seek to reduce and divert stormwater run-off that otherwise would enter sewer systems, requiring energy-intensive cleaning and purification processes. The cisterns connect to Lake Michigan and feed back over 18 million gallons of water annually to the Great Lakes watershed. Semi-permeable paving material is also used on campus and semi-permeable artificial turf is used on Sean Earl Field inside the track, allowing rain-water to percolate into the ground.

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

High efficiency fixtures are standard in any retrofit or new construction. A student project identified available water retrofits in all residence halls and the Water Tower Campus. A grant provided funding to implement these retrofits as well as a test a behavior change campaign focused on water use.

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

https://www.luc.edu/sustainability/sustainabilityatloyola/loyolasustainabilityinitiatives/waterresources/

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

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