| Overall Rating | Gold |
|---|---|
| Overall Score | 68.18 |
| Liaison | Marianne Martin |
| Submission Date | Dec. 3, 2024 |
University of Colorado Boulder
OP-3: Water Use
| Status | Score | Responsible Party |
|---|---|---|
|
4.02 / 7.00 |
Jonathan
Akins Campus Civil Engineer Facilities Management |
3.1 Potable water use per person
Performance year for water use:
Peer group:
Potable water from off-site sources:
Reclaimed water from off-site sources:
Other off-site water sources:
Potable water from on-site sources:
Other on-site water sources:
Full-time equivalent student enrollment:
Full-time equivalent of employees:
The Reporting Tool will automatically calculate the following four figures:
Full-time equivalent students and employees:
Annual potable water use per person:
Points earned for indicator OP 3.1:
3.2 Potable water use per square meter
The Reporting Tool will automatically calculate the following two figures:
Points earned for indicator OP 3.2:
3.3 Systems for water recovery and return
Narrative and/or website URL providing an overview of the institution’s on-site rainwater harvesting systems:
Does the institution recover water on-site for reuse?:
Narrative and/or website URL providing an overview of the institution’s on-site water recovery and reuse systems:
Does the institution collect and return water to surface water or groundwater through on-site green infrastructure?:
Narrative and/or website URL providing an overview of the institution’s on-site green infrastructure:
CU has multiple stormwater infiltration systems that were designed to promote infiltration of stormwater runoff. See "additional documentation" for further one additional upload to support "yes" response.
And two additional documentation links :
https://drive.google.com/file/d/15r7I0Tw-7PjMaRDrLyCcTWjNXPJ7YaxZ/view?usp=drive_link
https://drive.google.com/file/d/1wQMti7lmEEksnwiMx2XPdo1moszkOPBS/view?usp=drive_link
The Reporting Tool will automatically calculate the following figure:
3.4 Ratio of water recovered/returned to total water withdrawal
Narrative outlining the methodologies used to estimate or model the annual volume of water recovered and/or returned on-site:
CU has percolation data that can be used for a rough estimate of infiltration rates.
Estimated volume of rainwater harvested on-site for storage and use:
Estimated volume of water recovered on-site for reuse:
Estimated volume of water collected and returned through on-site green infrastructure:
The Reporting Tool will automatically calculate the following four figures:
Total water withdrawal:
Ratio of water recovered/returned to total water withdrawal:
Points earned for indicator OP 3.4:
Optional documentation
Re 3.2: Potable water use per square meter - there is a valid discrepancy in "Gross floor area of building space" between this credit and PRE 3. The number reported for PRE3 (1,212,504 sq. meters) is higher than the number reported for OP-3: Water Use (1,190,283), as the OP-3 number represents the gross floor area of conditioned spaces only. The difference between the two numbers represents the spaces/structures/sheds that have electricity going to them but no ventilation systems nor any water (as it would freeze in the winter). Therefore, the amount of space that has water service is smaller than our total campus gross building area.
Additional documentation for this credit:
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 or simply email your inquiry to stars@aashe.org.