Overall Rating Platinum - expired
Overall Score 85.29
Liaison Tonie Miyamoto
Submission Date March 23, 2015
Executive Letter Download

STARS v2.0

Colorado State University
OP-26: Water Use

Status Score Responsible Party
Complete 3.61 / 4.00 Carol Dollard
Energy Engineer
Facilities Management
"---" indicates that no data was submitted for this field

Level of water risk for the institution’s main campus:
Medium to High

Total water use (potable and non-potable combined)::
Performance Year Baseline Year
Total water use 368,657,919 Gallons 468,273,685 Gallons

Potable water use::
Performance Year Baseline Year
Potable water use 368,656,435 Gallons 468,273,082 Gallons

Figures needed to determine "Weighted Campus Users"::
Performance Year Baseline Year
Number of residential students 6,443 5,343
Number of residential employees 603 0
Number of in-patient hospital beds 0 0
Full-time equivalent enrollment 24,888.04 20,752.09
Full-time equivalent of employees 6,521 3,672
Full-time equivalent of distance education students 3,218 2,878

Gross floor area of building space::
Performance Year Baseline Year
Gross floor area 10,618,090 Square Feet 8,289,985 Square Feet

Area of vegetated grounds::
Performance Year Baseline Year
Vegetated grounds 2,000 Acres 2,000 Acres

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year July 1, 2013 June 30, 2014
Baseline Year July 1, 1999 June 30, 2000

A brief description of when and why the water use baseline was adopted:

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


Water recycled/reused on campus, performance year:
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Recycled/reused water withdrawn from off-campus sources, performance year:
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A brief description of any water recovery and reuse systems employed by the institution:

Untreated raw water is used for irrigation on nearly all CSU properties.


A brief description of any water metering and management systems employed by the institution:

Water is delivered to campus through master meters.The university operates building level metering for almost all the buildings on campus. Those meters are currently read manually, but an AMI metering program is being implemented and most water meters will be converted into "real time" meters within the next year.


A brief description of any building retrofit practices employed by the institution, e.g. to install high efficiency plumbing fixtures and fittings:

CSU has made 1 pint/flush urinals & 1.28 gpf toilets standard in all bathroom remodels.


A brief description of any policies or programs employed by the institution to replace appliances, equipment and systems with water-efficient alternatives:

Autoclaves are notorious for using lots of water to cool condensate before it is sent down the drain. CSU has retrofit 42 autoclaves on campus w/ water saving devices that save the university 15 million gallons/year. These features are now specified in all new autoclave installations.


A brief description of any water-efficient landscape design practices employed by the institution (e.g. xeriscaping):

In accordance with LEED guidelines, all new construction on campus includes drought tolerant plants and active xeriscaping. Nearly all new plants on campus are water conserving.


A brief description of any weather-informed irrigation technologies employed by the institution:

A local data system monitors weather patterns and irrigation systems require manual overload to conserve water during a storm.


A brief description of other water conservation and efficiency strategies employed by the institution:
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The website URL where information about the institution’s water conservation and efficiency initiatives is available:
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The information presented here is self-reported. While AASHE staff review portions of all STARS reports and institutions are welcome to seek additional forms of review, the data in STARS reports are not verified by AASHE. If you believe any of this information is erroneous or inconsistent with credit criteria, please review the process for inquiring about the information reported by an institution and complete the Data Inquiry Form.