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Cisterns

2015 Fall WMG Newsletter

Rainwater on Tap: Drinking Local, By The Numbers

WMG’s Living Lab and Learning Center is quickly on its way to being a rainwater-fed campus—and letting the municipal water lines go dry. Utilizing 3,200 square feet of roof space across two buildings, we are collecting the abundant water that falls from the sky. Ten thousand gallons of this bounty is stored in an underground tank, with another 2,000 gallons held in above-ground cisterns.

A Prototype Analysis for Determining the Stormwater Retention and Water Supply Benefits of Cisterns

Cisterns are usually considered for their water supply benefit. This paper evaluates how effective cisterns are as flood control measures as well as water supply. It considers a problematic situation that is becoming common in the southwest – residential areas on small lots where over half the lot is impermeable. The study uses a simple mass- balance relationship with daily input of rainfall to the cistern and daily use of the water by two citrus trees.

A Prototype Analysis for Determining the Stormwater Retention and Water Supply Benefits of Cisterns

This study considers the viability of cisterns to provide water supply for landscapes as well as water retention for flood control. Rather than consider average annual conditions, the analysis considers conditions on a daily basis using historical data. It uses 105 years of observed daily rainfall, and the expected daily water use of a typical landscape to determine whether the stormwater and water supply benefits of cisterns will be available when they are needed.

Tecnología Sustentable

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WMG was honored to have 20 students from Mexico and Guatemala participating in the Study of US Institute (SUSI) visit our Living Lab & Learning Center in July 2014. And we're so proud to share this amazing video they produced about their experience here.

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