Overall Rating	Gold - expired
Overall Score	78.50
Liaison	Marina Zdobnova
Submission Date	Aug. 16, 2018
Executive Letter	Download

STARS v2.1

University of California, Berkeley
OP-22: Water Use

Status

Score

Responsible Party

5.23 / 6.00

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’s Aqueduct Water Risk Atlas:

High

Part 1

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

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 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:

34.31

Part 2

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:

25.28

Part 3

Does the institution wish to pursue Part 3 of this credit? (reductions in total water use per acre/hectare of vegetated grounds):

Yes

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:

23.16

Optional Fields

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:

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 by the UC Berkeley Facilities Services' Water Operations. 104,000 gallons non-potable water accounted for (Boalt and Eshleman).