| Overall Rating | Gold - expired |
|---|---|
| Overall Score | 78.50 |
| Liaison | Kira Stoll |
| Submission Date | Aug. 16, 2018 |
| Executive Letter | Download |
University of California, Berkeley
OP-22: Water Use
| Status | Score | Responsible Party |
|---|---|---|
|
5.23 / 6.00 |
Kira
Stoll Director of Sustainability Office of Sustainability |
Level of ”Physical Risk QUANTITY” for the institution’s main campus as indicated by the World Resources Institute’s Aqueduct Water Risk Atlas:
Total water use (potable and non-potable combined):
| Performance Year | Baseline Year | |
| Total water use | 608,499,783 Gallons | 791,947,244 Gallons |
Potable water use:
| Performance Year | Baseline Year | |
| Potable water use | 608,395,783 Gallons | 791,947,244 Gallons |
Start and end dates of the performance year and baseline year (or three-year periods):
| Start Date | End Date | |
| Performance Year | Jan. 1, 2016 | Dec. 31, 2016 |
| Baseline Year | Jan. 1, 2007 | Dec. 31, 2007 |
A brief description of when and why the water use baseline was adopted:
The baseline year of 2007 was the year prior to the adoption of the campus water use goal that set in motion more mitigation measures.
Figures needed to determine "Weighted Campus Users":
| Performance Year | Baseline Year | |
| Number of students resident on-site | 8,065 | 7,180 |
| Number of employees resident on-site | 0 | 0 |
| Number of other individuals resident on-site and/or staffed hospital beds | 0 | 0 |
| Total full-time equivalent student enrollment | 42,103 | 33,948 |
| Full-time equivalent of employees (staff + faculty) | 15,475 | 15,190 |
| Full-time equivalent of students enrolled exclusively in distance education | 0 | 0 |
| Weighted campus users | 45,199.75 | 38,648.50 |
Potable water use per weighted campus user:
| Performance Year | Baseline Year | |
| Potable water use per weighted campus user | 13,460.16 Gallons | 20,491.02 Gallons |
Percentage reduction in potable water use per weighted campus user from baseline:
Gross floor area of building space:
| Performance Year | Baseline Year | |
| Gross floor area | 16,284,867 Gross square feet | 15,838,197 Gross square feet |
Potable water use per unit of floor area:
| Performance Year | Baseline Year | |
| Potable water use per unit of floor area | 37.36 Gallons per square foot | 50.00 Gallons per square foot |
Percentage reduction in potable water use per unit of floor area from baseline:
Does the institution wish to pursue Part 3 of this credit? (reductions in total water use per acre/hectare of vegetated grounds):
Area of vegetated grounds:
| Performance Year | Baseline Year | |
| Vegetated grounds | 178 Acres | 178 Acres |
Total water use (potable + non-potable) per unit of vegetated grounds:
| Performance Year | Baseline Year | |
| Total water use per unit of vegetated grounds | 3,418,538.11 Gallons per acre | 4,449,141.82 Gallons per acre |
Percentage reduction in total water use per unit of vegetated grounds from baseline:
A brief description of the institution's water-related behavior change initiatives, e.g. initiatives to shift individual attitudes and practices such as signage and competitions:
The ongoing drought conditions in California have kept messaging about water use visible in signing at the Recreation Sports facilities and various locations around campus.
A brief description of the institution's water recovery and reuse initiatives:
Approximately 24,000 gallons of rainwater are reused each year for irrigation at the UC Berkeley School of Law. In addition, the estimate of recycled/reused water includes 80,000 gallons from the Eshleman rain water system (assumes the 40,000 gallon tank was filled and used at least twice). Finally, the new Chou Hall at the Haas School of Business also recycles rain water captured in rooftop cisterns.
The campus also uses well (ground) water for pressure washing of sidewalks, pathways, egresses, entries, patios and stairs.
A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives (e.g. building retrofits):
The campus during renovation projects replaces domestic water features with more efficient models as a regular practice.
Students working with housing staff have been testing different low-flow shower heads and toilets in residence halls.
The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:
Data source(s) and notes about the submission:
Information in this field was provided by the UC Berkeley Facilities Services' Water Operations.
104,000 gallons non-potable water accounted for (Boalt and Eshleman).
Information in this field was provided by the UC Berkeley Facilities Services' Water Operations.
104,000 gallons non-potable water accounted for (Boalt and Eshleman).
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.