October 2012
A-21
Project
Water Savings
(
gallons per
year)
Estimated
Payback
(
years)
Installation of Some Dual-Flush Flushometer-
Valve Toilets
9,800
6.8
Installation of 1.5 GPM (gallons per minute)
Showerheads
3,700
2.1
Installation of Reduced Flow Rate Faucets
1,500
4.5
Commercial Kitchen Replacements
Installation of a More Efficient Tunnel
Dishwasher
660,000
18
Installation of a Food Separator and Garbage
Composting System
1,000,000
N/A*
Outdoor Replacements
Installation of a Weather-Based Irrigation
Controller
1,000,000
N/A
Total
Approximately
5,900,000
*
N/A: Information not available
Acknowledgements
The U.S. Environmental Protection Agency’s WaterSense® program acknowledges the
following individuals for providing information for this case study:
••
Geoff Glass, Facility Director, Providence St. Peter Hospital
••
Troy Aichele, Stirrett Johnsen Mechanical Contractors
••
Laura Brannen, Senior Environmental Performance Consultant, Mazzetti Nash
Lipsey Burch
Table A-3. Retrofit and Replacement Project Water Savings (cont.)
A.7 Hospital Installs Water-Efficient Laboratory and Medical Equipment
