WAHASO PROJECT EXPERIENCE
Expo Rail Maintenance Facility
A stormwater harvesting system for a nearly 80,000 square-foot light rail operations and maintenance facility, expected to save 1.2 to 1.6 million gallons per year.
1.2–1.6 Million
Gallons saved per year (expected)
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.
Landscape irrigation and train washing create an estimated demand of 5,500 gallons per day at the facility.
Poor soil conditions ruled out infiltration, so the design captures runoff in an underground cistern of roughly 400,000 gallons beneath the parking lot, keeping the lot intact.
Pretreated stormwater passes through Wahaso's harvesting package: mechanical filtration to 50 microns, bag filtration to 5 microns, and ultraviolet sanitation rated for 70 GPM, making it safe for irrigation and vehicle washing.
Predictive controls use weather forecasts to lower cistern levels ahead of storms and hold water during them. The project contributes toward a LEED Gold rating.
PROJECT DETAILS
System andperformance profile.
SYSTEM TYPE
Stormwater Harvesting
BUILDING TYPE
Municipal Rail Operations and Maintenance Facility
WATER SOURCE
Stormwater Runoff
PRIMARY REUSE
Landscape Irrigation, Train Washing
ESTIMATED DAILY DEMAND
5,500 Gallons
STORAGE VOLUME
About 400,000 Gallons
FILTRATION
50-Micron Mechanical, 5-Micron Bag
DISINFECTION
Ultraviolet, Rated 70 GPM
EXPECTED ANNUAL WATER SAVINGS
1.2 to 1.6 Million Gallons
PROJECT COMPLETION
May 2015
RELEVANT SYSTEM CAPABILITIES
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