Overall Rating Gold
Overall Score 77.74
Liaison Ian McKeown
Submission Date March 4, 2022

STARS v2.2

Loyola Marymount University
OP-21: Water Use

Status Score Responsible Party
Complete 6.00 / 6.00 Jessica Hernandez
Sustainability Coordinator
Facilities Management
"---" 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:
Extremely High

Total water withdrawal (potable and non-potable combined):
Performance Year Baseline Year
Total water withdrawal 303,825.61 Cubic Metres 598,240.54 Cubic Metres

Potable water use:
Performance Year Baseline Year
Potable water use 119,565.05 Cubic Metres 438,018.42 Cubic Metres

Start and end dates of the performance year and baseline year (or three-year periods):
Start Date End Date
Performance Period June 1, 2020 May 31, 2021
Baseline Period June 1, 2009 May 31, 2010

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

Water is one of the world's most precious resources, and few other places in the United States realize the importance of water conservation as much as Southern California. The region's population continues to grow while water supplies continue to dwindle. The Public Policy Institute of California last year found that California's water needs may jump as much as 40% in the next 25 years. The Department of Water Resources' own projections show California's average annual water supply will be 2.4 million acre-feet short by 2020. Another important consideration is the amount of energy consumption related to water - 20% of energy use in the state is consumed through the transporting water to farms and taps, and this doesn't include the energy consumed through irrigation and other water uses.

LMU understands this dilemma and has make great strides in conserving water across the entire campus. The city of LA entered water restrictions in 2009, LMU decided to go above and beyond these water restrictions based on our environmental commitments as a university. Our reclaimed water system was actually adopted by LADWP to use as a community system.

The WateReuse Association selected LMU as the 2010 WateReuse Customer of the Year. Currently, 75% of LMU’s irrigation needs are supplied by reclaimed water. LMU implemented a hydrogen peroxide treatment station in 2008 which produces odorless, clean water for use on campus landscapes.This technology has been since adapated by LADWP and used for municipal reclaimed water treatment a testament to our design!
In March 2009, the WateReuse Association’s California Section selected LMU as the 2008 WateReuse Institutional Customer of the Year.

Figures needed to determine "Weighted Campus Users":
Performance Year Baseline Year
Number of students resident on-site 3,200 3,205
Number of employees resident on-site 35 40
Number of other individuals resident on-site 0 0
Total full-time equivalent student enrollment 8,213 7,692
Full-time equivalent of employees 1,763 1,898
Full-time equivalent of students enrolled exclusively in distance education 0 0
Weighted campus users 8,290.75 8,003.75

Potable water use per weighted campus user:
Performance Year Baseline Year
Potable water use per weighted campus user 119,565.05 Cubic Metres 438,018.42 Cubic Metres

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 367,401.65 Gross Square Metres 258,084.53 Gross Square Metres

Potable water use per unit of floor area:
Performance Year Baseline Year
Potable water use per unit of floor area 0.33 Cubic Metres / GSM 1.70 Cubic Metres / GSM

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

Area of vegetated grounds:
Performance Year Baseline Year
Vegetated grounds 25.09 Hectares 25.09 Hectares

Total water withdrawal per unit of vegetated grounds:
Performance Year Baseline Year
Total water withdrawal per unit of vegetated grounds 12,109.43 Cubic Metres / Hectare 23,843.78 Cubic Metres / Hectare

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

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

• Removed 210,000 square feet of turf on Field, which saved an estimated 1 million gallons of water.
• Removed turf/grass and plants with heavy water requirements and replaced them with drought-tolerant plants.
• Deployed rainwater/atmospheric condition sensors for landscape irrigation to reduce water usage.
• Students gather condensate from HVAC equipment on the roof of the Life Sciences Building and use it to irrigate nearby plants

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

LMU irrigates 80%+ our grounds with non-potable reclaimed water which we purchase through LADWP, a system a lmu professor help design.

A brief description of the institution's initiatives to replace plumbing fixtures, fittings, appliances, equipment, and systems with water-efficient alternatives:

Per the university master plan here are a few of the initiatives.
• Bathroom faucets -1.5
gallons per minute (private),
0.5 gallon per minute (public)
•Kitchenfaucets -1.5gallonsper minute
•Showerheads: no more than1showerhead per stall
Low-flow showerheads -2.0 gallons per minute
• Highefficiencyclotheswashers -
water savings factor of 5.0or less(residential);
water savings factor of7.5 orless (residential)
•Highefficiency toilets
-1.28 gallons per
flush or less,or dualflush
• High efficiency/ultra low
flow urinals
- 0.125 to 0.5 gallon per flush
• Energy Star dishwashers
• Domestic water heating system located in
close proximity to point(s) of use
• Tankless and on-demand water heaters
• Cooling tower conductivity controllers or
cooling tower pH conductivity controllers
(Cooling towers to operate at minimum of 5.5
cycles of concentration)
• Water-saving pool filter
• Rotating sprinkler nozzles
- 0.5 gallon per minute
• Micro-spray nozzles
• Drip/subsurface irrigation (micro-irrigation)and
bubbler irrigation

• Weather based irrigation controller
• Hydro-zoning plantings (grouping similar water needs plants together)
• Zoned irrigation
• Drought-tolerant
plants: 75 percent of new landscape
• Artificial turf (cost permitting)
• Landscaping contouring to minimize precipitation runoff
• Infiltration planters (i.e., notched curb to allow runoff to flow into
planted areas)
• Storrnwater capture an infiltration of on campus sump
• Campus-wide reclaimed water
irrigation (by Project buildout)
• Cooling towers using 100 percent reclaimed water use,
as permitted by law (by Project buildout)

New buildings designed to meet the U.S. Green Building Council's Leadership in
Energy and Environmental Design® (LEED®)Certified level (or higher), or an equivalent

Website URL where information about the institution’s water conservation and efficiency efforts is available:
Additional documentation to support the submission:

For all new construction and renovations, LMU uses 0.125 gpf urinals, 1.28 gpf water closets and 0.5 gpm faucet aerators.

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.