SRUS66 KRSA 161730
RR6RSA

MONTHLY RESERVOIR STORAGE
NATIONAL WEATHER SERVICE / CALIFORNIA-NEVADA RIVER FORECAST CENTER
WITH COOPERATION FROM THE CALIFORNIA DEPARTMENT OF WATER RESOURCES
30-YEAR HISTORICAL AVERAGE BASED ON 1971-2000 PERIOD
1030 PDT Wed May 16 2012

STORAGE IN MAJOR RESERVOIRS AS OF APRIL 30 2012

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
NORTH COAST                                      
  KLAMATH RIVER                
    UPPER KLAMATH LAKE   523.7    483.4   500.6   493.1      94     102
  LOST RIVER                   
    GERBER RSVR           94.3     72.9    74.9    64.1      68      88
    CLEAR LAKE RSVR      513.3    306.0   182.4   129.3      25      42
  SHASTA RIVER                 
    SHASTINA              50.0     36.6    45.5    34.1      68      93
  TRINITY RIVER                
    TRINITY LAKE        2447.6   1985.4  2314.5  2338.2      96     118
    LEWISTON LAKE         14.7     13.9    14.4    13.9      95     100
  MAD RIVER                    
    RUTH RSVR             61.0     48.5    48.9    48.5      79     100
  S FK EEL RIVER               
    LAKE PILLSBURY        80.5     74.5    72.7    69.6      86      93
  RUSSIAN RIVER                
    LAKE MENDOCINO       122.4     87.1    87.3    90.0      74     103
    WARM SPRINGS RSVR*   381.0    223.8   245.3   247.4      65     111

SAN FRANCISCO BAY - NORTH BAY                    
  CONN CREEK                   
    LAKE HENNESSEY        31.0     27.2    31.0    31.0     100     114
  NICASIO CREEK                
    NICASIO RSVR          22.4     19.6    22.4    22.4     100     114
  LAGUNITAS CR                 
    ALPINE LAKE            8.9      8.3     8.9     8.9     100     107
    KENT LAKE             32.9     22.0    32.9    32.8     100     149
  WALKER CK                    
    SOULAJULE RSVR*       10.7      9.7    10.5    10.6      99     109

SAN FRANCISCO BAY - SOUTH / EAST BAY             
  SAN PABLO CREEK              
    SAN PABLO RSVR        43.2     32.5    35.3    37.8      87     116
  SAN LEANDRO CREEK            
    U SAN LEANDRO RSVR    42.0     34.8    35.5    37.4      89     107
    LAKE CHABOT           10.4      9.6     9.4     9.6      92     100
  BEAR CREEK                   
    BRIONES RSVR          67.5     58.1    60.1    59.7      88     103
  ARROYO VALLE                 
    LAKE DEL VALLE        77.1     38.9    41.2    32.0      41      82
  SAN ANTONIO CREEK            
    SAN ANTONIO RSVR      50.5     38.0    49.8    47.9      95     126
  COYOTE CREEK                 
    COYOTE RSVR*          22.9     14.7    18.6    12.0      52      82
    ANDERSON LAKE         91.3     60.3    60.2    41.6      46      69
  LOS GATOS CR                 
    ELSMAN (L AUSTRAIN)    6.2      4.5 -9999.0     MSG     MSG     MSG
    LEXINGTON RSVR        21.4     12.2    19.3     9.3      44      77
  CALAVERAS CR                 
    CALAVERAS RSVR       100.0     74.0    49.7    21.2      21      29
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
SAN FRANCISCO BAY - PENNINSULA                   
  SAN ANDREAS CR               
    SAN ANDREAS LAKE      19.0     15.9    15.1    18.6      98     117
  SAN MATEO CR                 
    CRYSTAL SPRINGS       58.4     49.7    56.5    54.0      92     109

CENTRAL COAST                                    
  SALINAS RIVER                
    SANTA MARGARITA LK    26.0     20.0    23.9    18.9      73      95
  SAN ANTONIO RIVER            
    SAN ANTONIO RSVR     350.0    238.4   265.6   248.4      71     104
  NACIMIENTO R                 
    NACIMIENTO RSVR      350.0    234.5   375.0   256.7      73     109
  SANTA YNEZ R                 
    GIBRALTER RSVR        10.0      7.8     5.3     4.7      47      60
    LAKE CACHUMA         205.0    169.8   195.4   167.6      82      99
  OLD CREEK                    
    WHALE ROCK RSVR       40.7     35.2    32.5    32.0      79      91

SOUTH COAST - VENTURA R / SANTA CLARA R          
  COYOTE CREEK                 
    LAKE CASITAS         254.0    228.3   221.6   201.6      79      88
  PIRU CREEK                   
    PYRAMID LAKE*        180.0    163.1   169.4   166.6      93     102
    LAKE PIRU             88.3     58.9    72.6    54.7      62      93
  MATILIJA CR                  
    MATILIJA RSVR          0.8      1.1     1.0     1.0     129      88
  CASTAIC CR                   
    CASTAIC LAKE*        323.7    286.3   313.8   296.4      92     104
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
SOUTH COAST - SAN GABRIEL R / SANTA ANA RIVER    
  SAN GABRIEL RIVER            
    COGSWELL RSVR          9.0      3.9     2.4     2.8      31      72
    SAN GABRIEL RSVR      62.0     21.2    46.0    11.6      19      55
  BEAR CREEK                   
    BIG BEAR LAKE         74.0     61.9    73.2    69.4      94     112
  BERNASCONI PASS              
    PERRIS RSVR*         131.5    117.1    73.7    73.8      56      63
  TRIB CAJALCO CR              
    LAKE MATHEWS         182.0    156.9   161.6   143.4      79      91
  SAN JACINTO R                
    LAKE HEMET            14.0     10.5    12.8    10.7      76     102
    RAILROAD CYN RSVR     11.9     10.6    11.4     9.3      78      88
  SANTIAGO CREEK               
    SANTIAGO CK RSVR      25.0     17.5    25.8    20.0      80     114

SOUTH COAST - SANTA MARGARITA / SAN LUIS REY R   
  TUCALOTA CR                  
    SKINNER RSVR*         43.8     36.9    40.3    41.5      95     112
  TEMECULA CR                  
    VAIL LAKE             51.0     30.1    32.2    30.0      59     100
  SAN LUIS REY R               
    LAKE HENSHAW          53.4     21.9    21.1     6.7      13      31

SOUTH COAST - SAN DIEGUITO R / SAN DIEGO R       
  SAN DIEGUITO R               
    LAKE HODGES*          30.3     29.1    30.9    21.9      72      75
  SAN YSABEL CREEK             
    SUTHERLAND RSVR       29.7     12.9    20.7    12.1      41      94
  BIG SUR CREEK                
    MIRAMAR RSVR           7.2      6.1     5.4     5.6      78      91
  SAN VICENTE CR               
    SAN VICENTE RSVR      89.3     76.4    42.6    38.5      43      50
  SAN DIEGO RIVER              
    EL CAPITAN RSVR      112.8     55.7   104.5    80.8      72     145
  BOULDER CREEK                
    CUYAMACA RSVR         12.2      3.1     2.9     1.4      12      46
  QUAIL CANYON CR              
    LAKE JENNINGS          9.8      8.6     8.9     8.9      91     104
  CHAPPARAL CANYON             
    MURRAY RESERVOIR       4.8      3.7     3.5     4.0      84     109
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
SOUTH COAST - SWEETWATER / OTAY R / COTTONWOOD   
  SWEETWATER R                 
    LOVELAND RSVR         25.4     18.1    25.4    18.1      71     100
    SWEETWATER RSVR       27.7     15.5    19.7    19.7      71     127
  OTAY R                       
    LOWER OTAY RSVR*      49.5     44.0    42.8    41.7      84      95
  COTTONWOOD CREEK             
    MORENA RSVR*          50.2     36.8    13.2    12.8      26      35
    BARRETT LAKE*         37.9     29.4    34.8    26.3      69      89

UPPER SACRAMENTO RIVER                           
  MCCLOUD R                    
    MCCLOUD RSVR          35.3     29.8    29.5    26.7      76      90
  PIT RIVER TRIBUTARY          
    IRON CANYON RSVR      24.3      8.9     6.2     6.8      28      76
  PIT RIVER                    
    LAKE BRITTON*         40.6     36.7    37.3    37.4      92     102
    PIT NO 6              15.7     14.8    14.3    15.3      98     104
    PIT NO 7              34.0     33.2    32.4    30.7      90      93
  SACRAMENTO R                 
    SHASTA LAKE         4552.0   3842.7  4266.3  4440.1      98     116
    KESWICK RSVR          23.8     22.0    22.6    21.4      90      97
  CLEAR CREEK                  
    WHISKEYTOWN LAKE     241.1    232.9   226.2   233.6      97     100

FEATHER RIVER                                    
  N FK FEATHER R               
    LAKE ALMANOR        1143.0    886.4   983.3  1074.3      94     121
    MOUNTAIN MEADOWS      23.9     15.8    15.5    23.4      98     148
  BUTT CREEK                   
    BUTT VALLEY RSVR      49.9     41.0    41.8    46.9      94     114
  BUCKS CREEK                  
    BUCKS LAKE           105.6     74.1    78.6    98.0      93     132
  INDIAN CREEK                 
    ANTELOPE LAKE         22.6     21.4    23.4    23.4     104     109
  LITTLE LAST CHANCE CR        
    FRENCHMAN LAKE        55.5     42.7    47.0    46.6      84     109
  BIG GRIZZLY CR               
    LAKE DAVIS            84.4     69.6    72.9    69.5      82     100
  S FK FEATHER R               
    LITTLE GRASS VLY R    94.7     75.1    71.9    79.0      83     105
  LOST CREEK                   
    SLY CREEK RSVR        65.7     53.0    54.6    54.4      83     103
  FEATHER R                    
    LAKE OROVILLE       3537.6   2964.0  3305.4  3422.1      97     115
    THERMALITO SYSTEM     81.3     51.7    70.2    66.9      82     129
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
YUBA RIVER / BEAR RIVER                          
  N YUBA RIVER                 
    NEW BULLARDS BAR R   969.6    744.9   884.0   930.2      96     125
  M YUBA RIVER                 
    JACKSON MEADOWS RS    69.2     42.5    54.1    61.2      89     144
  CANYON CREEK                 
    FRENCH LAKE           13.8     10.2    13.0    11.3      82     111
    BOWMAN LAKE           68.5     42.5    28.0    66.6      97     157
  S YUBA RIVER                 
    LAKE SPAULDING SYS   144.6     78.9    59.3   113.2      78     143
  YUBA R                       
    ENGLEBRIGHT RSVR      70.0     66.1    70.5    70.7     101     107
  DEER CREEK                   
    SCOTTS FLAT RSVR      49.0     46.2    36.0    48.4      99     105
  BEAR RIVER                   
    ROLLINS RSVR          66.0     61.6    66.0    66.0     100     107
    CAMP FAR WEST RSVR   104.4     98.6    95.2    94.9      91      96

AMERICAN                                         
  M FK AMERICAN R              
    FRENCH MEADOWS RSVR  136.4     88.5    83.8   105.9      78     120
  RUBICON R                    
    HELL HOLE RSVR       208.4    138.1   164.0   167.6      80     121
  GERLE CR                     
    LOON LAKE             69.3     37.9    28.0    66.4      96     175
  CAPLES CR                    
    CAPLES (TWIN) LAKE    21.6     11.3    12.5    14.7      68     130
  S FK AMERICAN R              
    SLAB CREEK RSVR       13.1     14.6    13.5    10.2      78      70
  SILVER CR                    
    UNION VALLEY RSVR    266.9    189.7   188.4   247.1      93     130
  S FK SILVER CR               
    ICE HOUSE RSVR        43.4     27.4    18.5    39.9      92     146
  AMERICAN R                   
    FOLSOM LAKE          977.0    734.8   750.6   933.4      96     127
    LAKE NATOMA            9.0      8.1     7.5     7.9      88      98

WEST SIDE SACRAMENTO VALLEY                      
  STONY CREEK                  
    EAST PARK RSVR        51.0     46.3    48.4    48.4      95     104
    STONY GORGE RSVR      50.3     46.7    47.6    48.7      97     104
    BLACK BUTTE RSVR     143.7    100.6   113.3   115.1      80     114
  CACHE CREEK                  
    INDIAN VALLEY RSVR*  300.0    203.4   192.5   196.6      66      97
    CLEAR LAKE           315.0    254.3   313.4   241.7      77      95
  PUTAH CREEK                  
    LAKE BERRYESSA      1602.0   1343.8  1459.6  1393.3      87     104
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
EAST CONTRA COSTA                                
  KELLOGG CR                   
    LOS VAQUEROS RSVR*   104.8     99.4    49.8    72.9      70      73

MOKELUMNE R                                      
  SLY PARK CREEK               
    JENKINSON LAKE        41.0     37.4    41.2    41.0     100     110
  BEAR RIVER                   
    LOWER BEAR RIVER R    52.0     29.1    16.2    50.3      97     173
  N FK MOKELUMNE R             
    SALT SPRINGS RSVR    141.9     66.0    61.2   115.5      81     175
  MOKELUMNE R                  
    PARDEE RSVR          210.0    184.5   199.4   198.4      94     108
    CAMANCHE RSVR        417.1    259.5   292.7   251.2      60      97

CALAVERAS RIVER                                  
  CALAVERAS R                  
    NEW HOGAN RSVR       317.0    173.7   241.8   200.1      63     115
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
STANISLAUS RIVER                                 
  RELIEF CR                    
    RELIEF RSVR           15.6      6.7    14.1     7.8      50     116
  N FK STANISLAUS R            
    NEW SPICER MDWS R*   189.0     86.4   124.9   120.2      64     139
  M FK STANISLAUS R            
    DONNELLS RSVR         64.3     26.3    53.4    49.4      77     188
    BEARDSLEY LAKE        97.8     64.6    79.4    55.9      57      87
  S FK STANISLAUS R            
    PINECREST LAKE        18.3     13.9    17.5    18.0      98     129
  STANISLAUS R                 
    NEW MELONES RSVR*   2420.0   1446.4  1986.0  1945.0      80     134
    TULLOCH LAKE          68.4     57.8    62.4    60.2      88     104

TUOLUMNE RIVER                                   
  CHERRY CR                    
    CHERRY LAKE          273.5    158.8   208.9   265.8      97     167
  ELEANOR CR                   
    LAKE ELEANOR          28.6     15.2    24.2    23.9      84     157
  TUOLUMNE R                   
    HETCH HETCHY RSVR    360.4    166.3   239.2   334.3      93     201
    NEW DON PEDRO RSVR* 2030.0   1444.0  1583.7  1652.3      81     114
  TRIB TUOLUMNE R              
    TURLOCK LAKE          49.0     28.9    30.5    26.8      55      93
    MODESTO RSVR          29.0     18.2    18.8    17.6      61      97

MERCED RIVER                                     
  MERCED R                     
    LK MCCLURE(EXCQR)   1024.6    606.2   688.8   772.8      75     127
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
CHOWCHILLA R / FRESNO R                          
  CHOWCHILLA R                 
    BUCHANAN*            150.0     96.9   135.5   112.5      75     116
  FRESNO R                     
    HIDDEN*               90.0     51.6    64.7    48.2      54      93

UPPER SAN JOAQUIN R                              
  S FK SAN JOAQUIN R           
    FLORENCE LAKE         64.6      4.1    34.3    17.8      28     434
  MONO CR                      
    LK THOMAS A EDISON   125.0     31.7    44.0    52.1      42     164
  BIG CREEK                    
    HUNTINGTON LAKE       89.8     44.8    34.7    80.9      90     181
  STEVENSON CR                 
    SHAVER LAKE          135.4     59.5    99.7    86.4      64     145
  N FK SAN JOAQUIN R           
    BASS (CRANE VALLEY)   45.4     36.3    30.7    30.3      67      83
  SAN JOAQUIN R                
    MAMMOTH POOL RSVR    123.0     53.8   120.0   121.8      99     226
    REDINGER LAKE         35.0     24.0    22.5    24.0      69     100
    MILLERTON LK(FRIANT  520.5    359.3   228.5   370.1      71     103

SAN LUIS AREA                                    
  SAN LUIS CREEK               
    SAN LUIS RSVR       2041.0   1858.5  2026.3  1646.8      81      89
    ONEILL FOREBAY        56.4     46.1    44.4    51.2      91     111
  LOS BANOS CREEK              
    LOS BANOS RSVR        34.6     20.5    21.0    19.0      55      93
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
TULARE LAKE                                      
  HELMS CR                     
    COURTRIGHT RSVR      123.3     48.4    37.3    91.5      74     189
  N FK KINGS R                 
    WISHON RSVR          128.3     49.0    47.9    68.9      54     141
  KERN R                       
    ISABELLA RSVR        568.0    252.3   319.1   200.8      35      80
  KAWEAH R                     
    LAKE KAWEAH          143.0     73.1    88.1   131.2      92     180
  TULE R                       
    LAKE SUCCESS          82.3     46.2    38.2    55.3      67     120
  KINGS R                      
    PINE FLAT RSVR      1000.0    613.8   662.6   743.7      74     121

LAKE TAHOE BASIN                                 
  LAKE TAHOE BASIN             
    LAKE TAHOE           744.6    402.7   369.7   538.2      72     134

NORTH LAHONTAN BASIN                             
  PROSSER CREEK                
    PROSSER CK RSVR       28.6     14.0    12.3    16.9      59     120
  LITTLE TRUCKEE R             
    STAMPEDE RSVR        226.5    146.3   191.8   208.7      92     143
    BOCA RESERVOIR        40.9     30.0    36.1    17.3      42      58
  CARSON R                     
    LAHONTAN RSVR        295.1    224.7   185.6   200.7      68      89
  E WALKER R                   
    BRIDGEPORT RSVR       42.5     26.7    30.2    37.1      87     139
  W WALKER R                   
    TOPAZ LAKE            59.4     33.5    44.0    44.7      75     133
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
SOUTH LAHONTAN BASIN                             
  LEE VINING CR                
    SADDLEBAG LAKE        11.1      1.8     3.9     1.0       9      56
  RUSH CREEK                   
    GEM LAKE              17.2      2.7     4.9     9.6      56     356
    GRANT LAKE            47.6     23.7    47.9    38.4      81     162
  S FK BISHOP CR               
    SOUTH LAKE            12.9      2.2     0.0     8.2      64     375
  OWENS RIVER                  
    LAKE CROWLEY         183.5    119.7   116.8   145.5      79     122
    TINEMAHA RSVR         16.4      3.6     2.1     2.9      17      79
  ROSE VALLEY                  
    HAIWEE RSVR           46.6     32.8    27.9    29.8      64      91
  W FK MOJAVE R                
    LAKE SILVERWOOD*      78.0     68.0    71.4    69.0      88     101

HUMBOLDT RIVER BASIN                             
  HUMBOLDT RIVER BASIN         
    RYE PATCH RSVR       194.3    118.4    76.6   131.2      68     111

SNAKE RIVER BASIN                                
  OWYHEE R                     
    WILDHORSE RSVR        71.5     55.8    69.5    57.6      81     103
*  USES AVERAGE OF AVAILABLE RECORDS FROM THE 1971-2000 PERIOD

                                  30-YR                    2012    2012
                         TOTAL  HIST AVG   2011    2012     PCT     PCT
                       CAPACITY    KAF      KAF     KAF     CAP     AVG
COLORADO RIVER                                   
  COLORADO R                   
    LAKE POWELL        24322.0  18539.0 12925.6 15508.0      64      84
    LAKE MEAD          26159.0  21809.0 11115.0 13986.0      53      64
    LAKE MOHAVE         1810.0   1653.0  1706.9  1708.3      94     103
    LAKE HAVASU          619.0    592.1   590.5   602.0      97     102

$$