Overall Rating	Gold
Overall Score	65.84
Liaison	Morgan Hartman
Submission Date	Dec. 12, 2022

STARS v2.2

University of Nebraska - Lincoln
OP-21: Water Use

Status

Score

Responsible Party

1.30 / 4.00

Morgan Hartman
Recycling Coordinator
FMO

"---" 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

Part 1. Reduction in potable water use per person

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

	Performance Year	Baseline Year
Total water withdrawal	312,212,967 Gallons	337,716,304 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	312,212,967 Gallons	337,716,304 Gallons

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

	Start Date	End Date
Performance Period	July 1, 2020	June 30, 2021
Baseline Period	Jan. 1, 2014	Dec. 31, 2014

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:

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Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	7,844	7,294
Number of employees resident on-site	0	0
Number of other individuals resident on-site	0	0
Total full-time equivalent student enrollment	21,055	21,363
Full-time equivalent of employees	5,799	5,618
Full-time equivalent of students enrolled exclusively in distance education	488	0
Weighted campus users	21,735.50	22,059.25

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	14,364.20 Gallons	15,309.51 Gallons

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

6.17

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	14,638,238 Gross square feet	13,255,711 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	21.33 Gallons per square foot	25.48 Gallons per square foot

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

16.28

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	360.31 Acres	363.67 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	866,512.08 Gallons per acre	928,633.94 Gallons per acre

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

6.69

Optional Fields

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

All irrigation systems on campus have been converted to a central control system, managed through a web application which allows for greater control over potable water use within the irrigation system. System failures are detected and systems can be shut down immediately, irrigation technicians can shut down systems in anticipation of forecasted rain events, and continuous monitoring of systems can be managed to improve water use efficiency and conservation.

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

At the 19th and Vine Parking Garage storm water is collected from the roof deck into cisterns that feed into a bioswale and green space on the east side of the parking garage.

East Stadium Plaza and Love Library North Plaza both use a Silva Cell system and permeable pavers to capture storm water runoff and distribute them to the root infrastructure of the trees planted in the plaza.

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:

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Additional documentation to support the submission:

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Data source(s) and notes about the submission:

This credit utilizes a performance period of July 1 2020 - June 30 2021. PRE 5 information is based on 2021 data.