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  Home > Water Services > Water Resources > Hydrologic Report >
 2002-2003 HYDROLOGIC REPORT
 Sections
Introduction 
Los Angeles County
Flood Control and Water Conservation
Precipitation
Evaporation
Runoff
Reservoirs
Erosion Control
Water Conservation
Acknowledgments
Disclaimer
2002-2003 Hydrologic Report
This report discusses hydrologic data relative to Los Angeles County for the period beginning October 1, 2002 and ending September 30, 2003. The Department has revised the format of this report to provide users with more useful data and a more efficient means of utilizing that data. The report consists of six sections.
PRECIPITATION
Lists 273 active rainfall stations for which unpublished rainfall data are on file at the Department.
 
 
EVAPORATION
Lists 13 evaporation station locations and data for this reporting period. Unpublished evaporation data from previous years are on file at the Department.
 
 
RUNOFF
Lists 65 active stream gaging stations. The mean of the daily flow rates during the reporting period, the reporting period's peak flowrate and historical peak flow rate for each of these stations are contained in this section. Unpublished stream flow data are on file at the Department.
 
 
   
RESERVOIRS
Lists 15 dams and reservoirs for which inflow, outflow and storage data are on file at the Department.
 
 
EROSION CONTROL
115 debris basins. Data on the debris production amounts for the reporting period are contained in this section. Unpublished debris production and inflow data are on file at the Department.
 
 
WATER CONSERVATION
Lists 32 groundwater recharge locations. Data on the water conserved at various facilities and water injected at seawater barrier projects during the reporting period, and historical well level data for key wells are contained in this section. Unpublished water conservation data from previous years are on file at the Department.
 

Unpublished information may be obtained by contacting:

Los Angeles County Department of Public Works
Water Resources Division
P.O. Box 1460
Alhambra, CA 91802-1460
...or telephone: (626) 458-6120