Station Meta Data: COGSWELL RESERVOIR
Welcome to CDEC A division of DWR

COGSWELL RESERVOIR

Map of surrounding area

Station IDCGSElevation2405' ft
River BasinSAN GABRIEL RCountyLOS ANGELES
Hydrologic AreaSOUTH COASTNearby CityMONROVIA
Latitude34.245000°NLongitude117.965000°W
OperatorLos Angeles CountyData Collection

Additional types of information available:   Dam Information | Reservoir Information


The following data types are available online. Select one of the links below to retrieve recent data.

Sensor DescriptionDurationPlotData CollectionData Available
PRECIPITATION, ACCUMULATED, inches (monthly) (RAIN)MANUAL ENTRY 10/01/1932 to 09/01/1988.
RESERVOIR STORAGE, af (monthly) (STORAGE)MANUAL ENTRY 10/01/1955 to present.