HomeMy WebLinkAbout - PPTStormwater Capture
Prado Dam
■ OCWD is an independent special district that manages the large
groundwater basin that overlies north and central Orange County
■ OCWD serves 2.4 million residents
❑ Groundwater ❑ Imported Water
■ Southern California is a desert and we have recurring
droughts
■ Water shortage in Bay -Delta
■ Santa Ana River receiving less flows:
— Dry weather conditions
— Water conservation
— Upstream water recycling
Stormwater Capture
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Stormwater Capture
Elevation 505 ft
Non -flood Season
(Mar 1 — Sept 30)
Elevation 498 ft
Flood Season (Oct 1- Feb 28)
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■ The Corps manages releases of
stormwater from Prado
— Releasing water at high rates
limits OCWD's ability to capture
water
— Release rates can be as high as
4.5 million gpm during flood
season
■ OCWD is able to recharge
optimally when storms are spread
apart and release rates from
Prado Dam are 450,000 gpm or
less
nirmwater Canturs
■ The Dec. 2010 storms
produced nearly 32.5 billion
gallons of water stored behind
Prado Dam
■ OCWD captured a large
amount of water generated
from the Dec. 2010 storms
■ Army Corps released water at
high rates resulting in a loss of
26 billion gallons of water to
the ocean
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Current Status
Questions?