Overall Rating Platinum - expired
Overall Score 86.82
Liaison Richard Demerjian
Submission Date March 28, 2018
Executive Letter Download

STARS v2.1

University of California, Irvine
OP-22: Water Use

Status Score Responsible Party
Complete 5.72 / 6.00 Richard Demerjian
Assistant Vice Chancellor
Office of Environmental Planning and 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:

Total water use (potable and non-potable combined):
Performance Year Baseline Year
Total water use --- 681,073,908 Gallons

Potable water use:
Performance Year Baseline Year
Potable water use 358,020,535 Gallons 470,899,291 Gallons

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Year July 1, 2016 June 30, 2017
Baseline Year July 1, 2005 June 30, 2008

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

UC Irvine's water use baseline (3 year average for fiscal years 2005-2008) was established in the UCI 2013 Water Action Plan based on University of California Sustainable Practices Policy guidelines.

Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 8,986 4,596
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 33,093 26,840
Full-time equivalent of employees (staff + faculty) 8,050 7,380
Full-time equivalent of students enrolled exclusively in distance education 2,107 2,374
Weighted campus users 31,523.50 25,033.50

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 11,357.26 Gallons 18,810.77 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 11,064,125 Gross Square Feet 8,827,965 Gross Square Feet

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 32.36 Gallons / GSF 53.34 Gallons / GSF

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 230.65 Acres 234.15 Acres

Total water use (potable + non-potable) per unit of vegetated grounds:
Performance Year Baseline Year
Total water use per unit of vegetated grounds 0 Gallons / Acre 2,908,707.70 Gallons / 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:

Since the 2013 Student Aff airs has continued to promote personal water conservation in housing anddining areas. Residence halls have implemented a water conservation program emphasizing peer-to-peer education through UCI’s Earth Rep’s program. To date, student representatives have educated over 400 residents on the importance of water as a resource and the personal impact students can have on water supply through behavior changes. In 2017 close to 2,000 shower hangers were distributed to undergraduate students through the program. In addition to the shower hangers Student
Housing developed signs that give water-savings tips in bathrooms, laundry, and kitchen areas. Staff also provide opportunities to learn about drought tolerant landscaping through succulent planting events and volunteer turf removal projects. Future opportunities include education on green products that help protect waterways and a pilot study of shower timers.

Peer to Peer Engagement
Student interns engage the campus community throughout the year teaching water conservation awareness while giving advice on reducing personal water consumption. Interns use a variety of outreach techniques including displays and games while also interacting
one on one with peers. Interns also use social media to advocate for water conservation through infographics and instructional videos in an eff ort to reach a broader audience.

Foam Rub Rinse Campaign
Facilities Management has also provided outreach to the campus community encouraging conservation of water through the Foam, Rub, Rinse campaign. Signs have been placed across the campus core encouraging this practice.

A brief description of the institution's water recovery and reuse initiatives:

Reclaimed water (tertiary treated blackwater) has been used for landscape irrigation on campus for more than 40 years. UCI works collaboratively with the Irvine Ranch Water District (IRWD), a pioneer in treating wastewater for reuse for agriculture and landscape irrigation. UC Irvine's blackwater is locally treated one-half mile away from campus at the IRWD Michelson Treatment Plant. Through IRWD the campus reclaims approximately 34% of blackwater produced on campus for landscape irrigation resulting in the conservation of more than 230 million gallons per year of potable water supply.

Partnering with IRWD, UCI is currently converting the campus central plant cooling towers to recycled water use. Expected to be completed spring of 2018, this project will reduce potable water use on campus by an estimated 80 million gallons per year.

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):

UCI has completed Phase 1 of an extensive campuswide plumbing retrofit program, replacing all pre-1994 plumbing fixtures (toilets and urinals) with high-efficiency fixtures. Phase 1 has resulted in annual savings of 14.8 million gallons per year. The next phase of this program will involve replacement of targeted post-1994 fixtures (urinals with gpf greater than 1, toilets with 1.28-1.6 gpf, and faucets with gpm exceeding 0.5 gpm) which will result in an additional 10.6 million gallons per year in savings.

The website URL where information about the programs or initiatives is available:
Additional documentation to support the submission:

UC Irvine's water conservation initiatives have significantly reduced per capita water use on campus over the past decade. To date projects have resulted in a 36% reduction per capita from the baseline years.

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.