Overall Rating	Gold
Overall Score	68.45
Liaison	Justin Mog
Submission Date	March 4, 2022

STARS v2.2

University of Louisville
OP-21: Water Use

Status

Score

Responsible Party

3.24 / 4.00

Tina Pierce
Asst Dir Phys Plant Bus Ofc
Physical Plant

"---" 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	211,164,000 Gallons	260,000,000 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	211,164,000 Gallons	260,000,000 Gallons

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

	Start Date	End Date
Performance Period	Jan. 1, 2020	Dec. 30, 2020
Baseline Period	Jan. 1, 2006	Dec. 31, 2006

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:

There is no information prior to 2006 available.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	3,184	2,000
Number of employees resident on-site	0	0
Number of other individuals resident on-site	0	0
Total full-time equivalent student enrollment	18,397	16,483
Full-time equivalent of employees	6,566	5,949
Full-time equivalent of students enrolled exclusively in distance education	1,315	0
Weighted campus users	18,532	17,324

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	11,394.56 Gallons	15,008.08 Gallons

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

24.08

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	8,816,396.56 Gross square feet	6,516,785 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	23.95 Gallons per square foot	39.90 Gallons per square foot

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

39.97

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	287 Acres	287 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	735,763.07 Gallons per acre	905,923.34 Gallons per acre

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

18.78

Optional Fields

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

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

The Student Rec Center, Clinical & Translational Research building, and Belknap Academic Building (all LEED Gold) have large cisterns for storage of rainwater and condensate from the air-conditioning system. This water is used for irrigation of the surrounding landscaping.

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

Low-flow shower heads: 616 standard shower heads were replaced with efficient 2.0 gallon/minute heads. Reduces water use by an average of 11%, saving over $34,000/year.
Low-flow faucet aerators: Installed 20,426 pressure independent aerators. Reduces water consumption at sinks by an average of 58% for an annual savings of over $159,000.

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

http://louisville.edu/sustainability/operations/buildings-energy

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

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