University
of California
Irvine, California
RESULTS AT
A GLANCE
NIAGARA PRODUCTS
INSTALLED
Stealth® 0.8 GPF Toilets
Earth® 1.5 GPM Showerheads
0.5 GPM Aerators
REPLACEMENT DETAILS
558 fixtures* were replaced including
both 1.6 and 3.5 GPF toilets
WATER SAVINGS
Water reduction
9.5 million gallons saved annually
ANNUAL FINANCIAL
SAVINGS
$43,000
9.5 Million
Gallons of Water Saved
Each Year at Student
Housing Complexes
In 2011, a water conservation program was developed through a partnership between
the Irvine Ranch Water District (IRWD), the University of California at Irvine (UCI), and
Niagara Conservation Corporation. The plan was to install high-efficient fixtures in
student housing complexes at UCI and the IRWD would document water savings. It
was hoped that the impact would not only result in conservation efficiencies at the
university, but would also validate technologies and methods that could be rolled out
and successfully implemented within the IRWD.
Installations began in summer 2011 and were completed in 2012. The project was so
successful that the water saved could fill 475 swimming pools! UCI, home to six student
housing communities owned by the university, hoped this project would contribute
to their goal of reducing water consumption 15% below their 2007 baseline by 2014.
Reducing water usage by an average of nearly 40% at three of their student housing
complexes allowed them to get closer to reaching their ultimate goal.
Due to this success, the IRWD, which spans 181 miles in densely populated Orange
County, California, expanded the initiative to a district-wide Multi-Family Direct Install
program. Implementation of this program will help them meet their targets of reducing
the per capita water use 20% by 2020, reduce reliance on imported water, and realize
long term cost-effective conservation programs.
Water-Efficient Products Installed
*Fixture=toilet, showerhead, aerator
www.NiagaraConservation.com
IRWD documented water savings derived from plumbing fixture retrofits in three
different UCI student housing communities: Campus Village, Middle Earth and Verano
Place. The fixtures installed were Niagara Conservation’s ultra-high-efficient Stealth
0.8 GPF toilets that replaced both 1.6 and 3.5 GPF toilets, 0.5 GPM bathroom faucet
aerators and 1.5 GPM showerheads.
©2013
University
of California
Irvine, California
PRODUCT SUMMARY
Project Scope
Housing
Complex
STEALTH
®
0.8 GPF
First and only toilet to achieve a powerful, quiet flush using only
0.8 gallons of water.
Total
Buildings
Total
Fixtures*
Total
Students
Year
Residents Per/Fixture Constructed
Middle Earth
4
88
332
4.232000
Verano Place 12
300 600
2.001984
Campus Village 25
200
800
4.001980
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Saves up to 15,000 gallons of water per year.
The Stealth at work: When flushed, as water fills the tank and inner chamber, air is forced down through a transfer tube and into the trapway. When flushed, a powerful vacuum from the depressurized
trapway clears the bowl with a one-time, powerful flush.
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Monitoring and Study Groups
Meters were installed on two identical buildings from each community, while
one building from each community was not retrofitted. Monitoring was
conducted for a minimum of three months and once the monitoring was
completed, the control buildings were then retrofitted.
Water Savings By Housing Complex
EARTH
MASSAGE
SHOWERHEAD
®
Housing
Complex
1.5 GPM
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Uses up to 40 percent less water than standard showerheads.
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Saves nearly 11,000 gallons annually.
Three showerhead spray settings – needle, massage and combination.
Patented pressure-compensating technology guarantees a feeling of great force while using less water, consistent flow rate regardless of water pressure.
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0.5 GPM
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Uses 70% less water than a standard 2.2 GPM aerator.
Produces forceful streams at a reduced flow rate that minimizes the amount of energy needed to heat water.
Dorm.1.6
88
4.32 59 13.654.2342.3550%
Verano
Place
Apart.3.5 300
2.00 74 36.80 18.03180.25 39%
200 4.00 41 10.366.7667.6324%
Project Benefits and Savings
The project resulted in immediate advantages for UCI and savings
dramatically exceeded expectations.
No cost to UC Irvine for pilot study; IRWD paid for all installations.
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The retrofitted buildings received new Niagara plumbing fixtures that
were WaterSense labeled.
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Maintenance calls were reduced.
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The project continues to save nearly 9.5 million gallons of water per year.
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*Fixture=toilet, showerhead, aerator
Annual
Project
Gallons
Total
Water
per Day
Lifetime Percent
Savings Savings AD Savings Reduction
(Adjusted for
per
AF
in Metered
Student Occupancy) (10 yrs) Water Use
Middle
Earth
Campus
Apart. 3.5
Village
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TAMPERPROOF
HIGHEFFICIENCY
AERATOR
Gallons
Existing
per Day
Toilet
Total Students Savings
Housing Flush Packages
per
per
Type Volume Installed Package Package
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Water usage was reduced by an average of nearly 40% for the
three complexes.
Cost savings by the UCI facilities amounted to $43,000 annually on water
and wastewater bills.
The product savings information specified above is based on potential product savings per unit and may vary from the actual savings
achieved in an individual case study.
MKT-CS007-01
www.NiagaraConservation.com