WAHASO PROJECT EXPERIENCE
MGM National Harbor Resort
One of Wahaso's most successful projects by water savings: a rainwater and condensate system projected to cut municipal demand by 10.7 million gallons a year.
10.7 Million
Gallons of municipal demand avoided per year (projected)
DELIVERED BY
CASE STUDY
How thesystem works.
WAHASO PROJECT EXPERIENCE
This project was delivered by Wahaso Water Harvesting Solutions and is presented by SECURE Blue as relevant Wahaso project experience.
Wahaso designed a system that treats rainwater and condensate at 60 GPM into a 1,000-gallon processed water holding tank, which keeps system cost down while ensuring supply for the 150 GPM pressurization pumps.
Pressurized output is split so a separate non-potable stream serves the toilets.
Control logic monitors average irrigation and toilet demand along with cistern levels, and reserves a 21-day supply for those uses. When the cistern drops to the 21-day level, no further water is sent to the cooling towers until a rain event raises levels.
The project earned LEED Gold certification, saves the owner over $120,000 per year in water and sewer costs at current rates, and is projected to reach ROI breakeven in year three.
PROJECT DETAILS
System andperformance profile.
SYSTEM TYPE
Rainwater and Condensate Harvesting
BUILDING TYPE
Hotel and Casino Resort
WATER SOURCES
Rainwater, Condensate
PRIMARY REUSE
Irrigation, Toilet Flushing, Cooling Tower Make-Up
TREATMENT RATE
60 GPM
DAY TANK
1,000-Gallon Processed Water Holding Tank
PRESSURIZATION
150 GPM Pumps
RESERVE LOGIC
21-Day Irrigation and Toilet Supply Reserve
PROJECTED ANNUAL WATER SAVINGS
10.7 Million Gallons
ANNUAL WATER AND SEWER COST SAVINGS
Over $120,000
ROI BREAKEVEN
Year Three
CERTIFICATION
LEED Gold
RELEVANT SYSTEM CAPABILITIES
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