Download - Stormwater Capture
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Stormwater Capture
Groundwater Recharge
Southern California Water DialogueSeptember 24, 2008Mark Hanna, PhD, PE
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Upper Los Angeles River Area
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Urbanization
Sun Valley ~1949 Sun Valley ~2007
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San Fernando BasinHistorical Change in Groundwater Storage
500,000 AF
-800
-600
-400
-200
0
200
400
1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020
Fall of Year
Ch
an
ge
in S
tora
ge
(1,0
00
's o
f A
cre
-Fe
et)
Available Storage
Sto
rag
e (1
,000
’s o
f ac
re-f
eet)
Year
Groundwater Storage in the San Fernando Basin
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Adapted from:
Relative Infiltration
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LADWP Valley Generating Station Stormwater Capture Project
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LADWP Power Line Easement Pilot Project
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Woodman Avenue Median Retrofit
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Alley Retrofits
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Big Tujunga Dam Retrofit
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Hansen Spreading Grounds Enhancement Project
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Pacoima Spreading Grounds Enhancement Project
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Tujunga Spreading Grounds Enhancement Project
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LADWP Valley Generating Station Stormwater Capture Project
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LADWP Valley Generating Station Stormwater Capture Project
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EasternSan FernandoValley ~ 2007
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EasternSan FernandoValley ~ 1949