Overall Rating	Gold
Overall Score	68.35
Liaison	Jessica Bast
Submission Date	Aug. 9, 2022

STARS v2.2

North Carolina State University
OP-21: Water Use

Status

Score

Responsible Party

6.00 / 6.00

Jessica Bast
Sustainability Program Coordinator
University Sustainability Office

"---" 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:

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	387,288,000 Gallons	483,673,932.47 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	333,756,000 Gallons	483,673,932.47 Gallons

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

	Start Date	End Date
Performance Period	July 1, 2019	June 30, 2020
Baseline Period	July 1, 2001	June 30, 2002

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:

The State of North Carolina mandated this baseline through Senate Bill 668.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	8,273	6,746
Number of employees resident on-site	101	214
Number of other individuals resident on-site	138	0
Total full-time equivalent student enrollment	31,969	24,339
Full-time equivalent of employees	9,297	6,786.80
Full-time equivalent of students enrolled exclusively in distance education	1,528	300
Weighted campus users	32,035	24,859.35

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	10,418.48 Gallons	19,456.42 Gallons

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

46.45

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	16,142,883 Gross square feet	9,796,638 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	20.68 Gallons per square foot	49.37 Gallons per square foot

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

58.12

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	1,200 Acres	718 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	322,740 Gallons per acre	673,640.57 Gallons per acre

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

52.09

Optional Fields

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

Every year, there is a Tri towers energy and water challenge that engages students to reduce both their energy and water use by competing with other NC State students in their residence halls.

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

When possible, NC State uses water harvesting to meet non-potable water demands. Cisterns at Jordan and Biltmore Halls, Talley Student Union, Wolf Ridge Apartments and Yarbrough Utility Plant collect rainwater, which is used for campus irrigation, power washing and cooling utility plants. Condensate from HVAC systems is also collected and reused. A special water recovery system at Cates Utility Plant saves millions of gallons a year, and a new pipeline on Centennial Campus will supply reuse water (high quality water that has not been treated to safety levels for drinking) for cooling towers at Centennial Campus Utility Plant and for toilet flushing at James B. Hunt Jr. Library.

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

Over the years, NC State has installed aerators and other water volume-reducing devices to plumbing fixtures and began using smart irrigation systems that reduce water use by 40 percent.

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

https://sustainability.ncsu.edu/campus/water/

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

https://www.wri.org/applications/aqueduct/water-risk-atlas/#/?advanced=false&basemap=hydro&geoStore=e819aae9c907f59b0091883aa0e33de0&indicator=w_awr_def_qan_cat&lat=35.27141057410734&lng=-78.45611572265626&mapMode=analysis&month=1&opacity=0.5&ponderation=DEF&predefined=false&projection=absolute&scenario=optimistic&scope=baseline&threshold&timeScale=annual&year=baseline&zoom=9