A look at the watershed sizes for the City Lakes


I thought you might be interested in what lakes have the biggest watersheds, so below is a list of each lake’s watershed size ordered from largest to smallest, along with the change in water level from December 13th, 2010 (prior to the rain storms) until January 2nd, 2011 and the other source(s) for water for each reservoir.

Only the reservoirs which are managed by the City of San Diego area shown. Data for the other reservoirs was not immediately available.

Reservoir Watershed (square miles) Water Level Change Other water source(s)
Hodges 248 +16.88 Aqueduct
El Capitan 189 +8.29 Aqueduct
Barrett 131 +4.01* Upstream releases
Morena 114 +2.19
Lower Otay 99 +.96 Aqueduct, upstream releases
San Vicente 74 +8.28 Aqueduct, upstream releases
Sutherland 54 +14.5
Murray 4 +2.7* Upstream releases
Miramar 1 -1.9

* denotes the lake reached max capacity during the time period and excess water spilled over.

Obviously, as you can see, the size of the watershed

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