Overall Rating	Gold - expired
Overall Score	66.48
Liaison	Dayna Cook
Submission Date	Sept. 28, 2020

STARS v2.2

Northern Arizona University
OP-21: Water Use

Status

Score

Responsible Party

5.43 / 6.00

Jon Heitzinger
Associate Utilities Director
Facility Services

"---" 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	224,318,670 Gallons	267,356,440 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	167,220,620 Gallons	244,797,540 Gallons

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

	Start Date	End Date
Performance Period	July 1, 2018	June 30, 2019
Baseline Period	June 1, 2005	July 30, 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:

2005 was the year we have used in past reports. However, we were unable to confirm the numbers. FY06 was used as the first year with reclaimed water on campus. The number was received from Utility Services tracking.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	9,834	6,053
Number of employees resident on-site	18	15
Number of other individuals resident on-site	1	0
Total full-time equivalent student enrollment	30,512	12,523
Full-time equivalent of employees	3,455.67	2,202
Full-time equivalent of students enrolled exclusively in distance education	9,345.67	4,104
Weighted campus users	20,930.50	9,482.75

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	7,989.33 Gallons	25,815.04 Gallons

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

69.05

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	6,884,770 Gross square feet	4,498,861 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	24.29 Gallons per square foot	54.41 Gallons per square foot

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

55.36

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	405.68 Acres	380 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	552,944.86 Gallons per acre	703,569.58 Gallons per acre

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

21.41

Optional Fields

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

Every water bottle refill station has an education sign on it designed by students. We recently replaced a natural turf field with synthetic (CALSENSE projected savings per year - Ralph). We have adopted the City of Flagstaff's Low Impact Development (LID)standards and are trying to utilize captured water for HVAC cooling water.

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

The University taps into the City of Flagstaff's reclaimed water system for the majority of its landscaping irrigation and some of its toilet water usage. We are working with the City to overcome distribution bottle-necks to reach 100% reclaimed utilization for irrigation.

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

Most of campus water fixtures were changed out in 2012. Low flow toilets, shower heads and aerators were installed and are now our campus standard.

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

http://nau.edu/Facility-Services/Operations/Ops/

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

Information provided by: Jonathan.Heitzinger@nau.edu