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 2003-2004 HYDROLOGIC REPORT
 Sections
Introduction
Los Angeles County
Flood Control and Water Conservation
Precipitation
Evaporation
Runoff
Reservoirs
Erosion Control
Water Conservation
Acknowledgments
Disclaimer
 Evaporation Contents
Active Stations
Monthly Summary 
Location Map
EVAPORATION
Monthly Summary
ID Station Name Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Total
33-A Pacoima Dam 0.00 0.71 1.87 0.43 5.88 0.61 0.42 0.00 0.00 0 0 0 9.92
46-D Big Tujunga Dam 9.67 3.18 3.32 3.15 2.63 7.01 7.12 10.16 11.53 13.49 13.34 11.7 96.30
63-C Santa Anita Dam 5.76 3.17 2.64 2.75 2.17 3.54 3.17 5.12 4.23 5.93 5.94 5.85 50.27
89-B San Dimas Dam 3.98 1.50 1.35 1.15 1.11 2.91 3.98 6.40 6.52 7.95 7.21 5.76 49.82
96-C Puddingstone Dam 5.12 2.36 2.14 2.10 1.85 4.06 4.54 6.61 6.22 8.04 7.63 7.63 58.30
223-B Big Dalton Dam 5.12 2.36 2.14 2.10 1.85 4.06 4.54 6.61 6.22 8.04 7.63 7.63 58.30
252-C Castaic Dam 10.37 4.02 3.86 4.09 4.49 7.69 8.74 14.35 10.86 12.25 11.76 10.29 102.77
334-B Cogswell Dam 5.27 1.40 1.10 0.98 1.15 2.94 3.32 5.63 6.82 8.41 7.85 6.06 50.93
390-B Morris Dam 9.98 3.59 3.48 3.63 3.12 6.45 6.75 9.47 9.27 11.25 10.25 9.76 87.00
409-B Pyramid Reservoir 9.03 3.15 4.21 3.57 3.97 7.43 7.69 11.72 12.55 15.29 13.38 10.85 102.84
425-B San Gabriel Dam 7.63 3.34 3.45 3.45 2.59 5.61 5.22 7.49 7.07 9.22 9.12 9.25 73.44
598-D Check 43 Climate Sta 11.69 4.83 3.80 3.06 14.12 37.50
1058-B Palmdale 7.05 2.50 1.65 2.10 1.93 5.30 7.68 10.35 12.42 15.12 13.5 9.43 89.03
1071-B Descanso Gardens 3.99 1.57 0.95 1.16 1.20 3.05 3.76 5.95 6.18 7.94 7.25 6.22 49.22
1240 Pearblossom Climate 0.00 4.97 2.55 4.25 10.65 22.42

Units are in inches.
252C Castaic Dam and 409B Pyramid Reservoir stations mulfunctioned
for 2003-2004 water year.

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