HETCH HETCHY

Map of surrounding area

Station IDHTHElevation3870' ft
River BasinTUOLUMNE RCountyTUOLUMNE
Hydrologic AreaSAN JOAQUIN RIVERNearby CityYOSEMITE
Latitude37.950000°NLongitude-119.783000°W
OperatorHetch Hetchy Water and PowerData Collection

Additional types of information available:   Dam Information | Precipitation Averages | Reservoir Information


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

Sensor DescriptionSensor NumberDurationPlotData CollectionData Available
PRECIPITATION, ACCUMULATED, inches 2 (daily) (RAIN)COMPUTED 10/01/2012 to present.
PRECIPITATION, INCREMENTAL, inches 45 (daily) (PPT INC)DATA XCHG-USACE SAC 01/08/1985 to present.
PRECIPITATION, INCRMNT 4A-4A, inches 203 (daily) (PPTINC4)DATA XCHG-NWS 10/01/2012 to present.
RESERVOIR ELEVATION, feet 6 (daily) (RES ELE)MANUAL ENTRY 01/08/1985 to present.
RESERVOIR INFLOW, cfs 76 (daily) (INFLOW)MANUAL ENTRY 01/17/1994 to present.
RESERVOIR OUTFLOW, cfs 23 (daily) (OUTFLOW)DATA XCHG-USACE SAC 10/03/1993 to present.
RESERVOIR STORAGE, af 15 (daily) (STORAGE)DATA XCHG-USACE SAC 01/08/1985 to present.
RESERVOIR, STORAGE CHANGE, af 22 (daily) (RES CHG)COMPUTED 10/04/1993 to present.
RESERVOIR ELEVATION, feet 6 (event) (RES ELE)SATELLITE 05/05/1997 to 04/07/1998.
PRECIPITATION, ACCUMULATED, inches 2 (monthly) (RAIN)MANUAL ENTRY 10/01/1910 to present.
RESERVOIR STORAGE, af 15 (monthly) (STORAGE)MANUAL ENTRY 10/01/1951 to present.