Overall Rating	Platinum
Overall Score	88.13
Liaison	Tonie Miyamoto
Submission Date	Nov. 7, 2022

STARS v2.2

Colorado State University
OP-21: Water Use

Status

Score

Responsible Party

6.00 / 6.00

Carol Dollard
Energy Engineer
Facilities Management

"---" 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	479,142,880 Gallons	716,659,524 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	308,071,105 Gallons	468,273,082 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, 1999	June 30, 2000

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:

FY00 was a drought year for Colorado and marked the beginning of a long-term commitment at CSU to better water management and conservation.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	7,407	5,343
Number of employees resident on-site	88	0
Number of other individuals resident on-site	765	0
Total full-time equivalent student enrollment	29,260	20,752.09
Full-time equivalent of employees	7,008	3,672
Full-time equivalent of students enrolled exclusively in distance education	6,127	2,878
Weighted campus users	25,244.50	17,495.32

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	12,203.49 Gallons	26,765.62 Gallons

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

54.41

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	13,283,759 Gross square feet	8,289,985 Gross square feet

Potable water use per unit of floor area:

	Performance Year	Baseline Year
Potable water use per unit of floor area	23.19 Gallons per square foot	56.49 Gallons per square foot

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

58.94

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	2,050 Acres	2,000 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	233,728.23 Gallons per acre	358,329.76 Gallons per acre

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

34.77

Optional Fields

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

The Eco Actions campaign encourages students to adopt sustainable behavior choices and includes several actions related to water conservation like taking shorter showers, never leaving water running while brushing teeth, and using reusable water bottles and water bottle filling stations to eliminate the use of disposable bottled water on campus.

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

Untreated raw water is used for irrigation on nearly all CSU properties. Therefore, the total water use & potable water use will not match.

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

CSU has made 1 pint/flush urinals & 1.28 gallon/flush toilets standard in all bathroom remodels.
CSU has worked for more than two decades to reduce their water use - particularly potable water. We have accomplished this by switching to low flow fixtures, reducing water demands of laboratory equipment (particularly autoclaves), and replacing once through cooling for lab and HVAC equipment with chilled water loops.

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:

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