Overall Rating	Platinum - expired
Overall Score	85.72
Liaison	Marina Zdobnova
Submission Date	March 4, 2021

STARS v2.2

University of California, Berkeley
OP-21: Water Use

Status

Score

Responsible Party

3.82 / 4.00

Kira Stoll
Director of Sustainability
Office of Sustainability

"---" 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:

Low to Medium

Part 1. Reduction in potable water use per person

Total water withdrawal (potable and non-potable combined):

	Performance Year	Baseline Year
Total water withdrawal	583,975,568 Gallons	791,947,244 Gallons

Potable water use:

	Performance Year	Baseline Year
Potable water use	583,975,568 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 Period	Jan. 1, 2019	Dec. 31, 2019
Baseline Period	Jan. 1, 2007	Dec. 31, 2007

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:

The baseline year of 2007 was the year prior to the adoption of the campus first water use goal that set in motion more mitigation measures; 2007 usage correlates with the UC Policy baseline of three years average 2006-2008.

Figures needed to determine "Weighted Campus Users":

	Performance Year	Baseline Year
Number of students resident on-site	10,264	7,180
Number of employees resident on-site	0	0
Number of other individuals resident on-site	0	0
Total full-time equivalent student enrollment	41,775	33,948
Full-time equivalent of employees	15,347	15,190
Full-time equivalent of students enrolled exclusively in distance education	0	0
Weighted campus users	45,407.50	38,648.50

Potable water use per weighted campus user:

	Performance Year	Baseline Year
Potable water use per weighted campus user	12,860.77 Gallons	20,491.02 Gallons

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

37.24

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	16,599,236 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	35.18 Gallons per square foot	50.00 Gallons per square foot

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

29.64

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

Area of vegetated grounds:

	Performance Year	Baseline Year
Vegetated grounds	178 Acres	178 Acres

Total water withdrawal per unit of vegetated grounds:

	Performance Year	Baseline Year
Total water withdrawal per unit of vegetated grounds	3,280,761.62 Gallons per acre	4,449,141.82 Gallons per acre

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

26.26

Optional Fields

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

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:

Rainwater is reused each year for irrigation at the UC Berkeley School of Law. In addition, some recycled/reused water from the Eshleman rain water system is used in the building. Finally, the Chou Hall at the Haas School of Business also recycles rain water capture and reuse.

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:

The campus during renovation projects replaces domestic water features with more efficient models as a regular practice.

Students working with housing staff have tested and installed different low-flow shower heads and toilets in residence halls. The Green Labs program has piloted autoclave retrofits that show to achieve water savings. Large equipment replacements like cooling towers have improved conservation.

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

http://sustainability.berkeley.edu/water

Additional documentation to support the submission:

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Data source(s) and notes about the submission:

Information in this field was provided Office of Sustainability and by the UC Berkeley Facilities Services.