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,                                                                   BUREAU OF RECLAMATION
                                                                    LOWER COLORADO REGION
                                                                    BOULDER CITY, NEVADA

                                                               ACCUMULATIONS FOR APRIL 2011

    |GLEN CANYON    |                         HOOVER DAM         |             DAVIS DAM           |      MWD       |            PARKER DAM              |
    |               |  LAKE                                      |LAKE                             |                | LAKE                               |   C.A.P.
    |         ACCUM.|  MEAD    HOOVER RELEASE        GROSS  RATE |MOHAVE      DAVIS RELEASE   GROSS|DIVER. AT INTAKE| HAVASU     PARKER RELEASE     GROSS| DIVER. ACCUM.
DAY |   CFS    A.F. |  ELEV.   CFS    A.F.   ACCUM.   GEN  KWH/AF|ELEV   CFS   A.F.   ACCUM.  GEN  | A.F. ACCUM.    | ELEV    CFS    A.F.   ACCUM.  GEN. | A.F.   A.F.
----------------------------------------------------------------------------------------------------------------------------------------------------------------------
  1   18400   36496   1096.38  19850  39372   39372  15631  397  643.33  18480  36659   36659  4617  2499   2499    447.86  15620  30978    30978   2035   5875   5875
  2   18300   72793   1096.48  13008  25802   65174  10139  393  642.83  18600  36890   73549  4640  2513   5012    447.72  15020  29784    60762   1955   5806  11681
  3   18800  110083   1096.65  13462  26702   91876  10432  391  642.71  18600  36888  110437  4629  2489   7501    447.76  14500  28753    89515   1884   6419  18099
  4   16000  141818   1096.67  16968  33656  125532  13343  396  642.38  18650  36990  147427  4629  2499  10001    447.71  14510  28790   118305   1904   5980  24079
  5   15900  173355   1096.74  15626  30994  156526  12251  395  641.99  18760  37217  184644  4611  2505  12506    447.56  15670  31079   149384   2023   5806  29885
  6   15900  204893   1096.79  16190  32112  188638  12825  399  641.80  18890  37469  222113  4632  2479  14985    447.63  14000  27778   177162   1829   5980  35865
  7   15900  236430   1096.62  22896  45414  234052  18260  402  641.99  19080  37851  259964  4683  2511  17496    447.69  13010  25797   202959   1706   6081  41946
  8   15900  267967   1096.56  23330  46274  280326  18575  401  642.24  18890  37465  297429  4660  2454  19950    447.69  15000  29757   232716   1962   6091  48038
  9   15900  299504   1096.57  15062  29874  310200  11929  399  641.96  18890  37477  334906  4682  2499  22449    447.75  14050  27877   260593   1819   6063  54101
 10   15900  331041   1096.61  16576  32878  343079  13090  398  641.77  18890  37476  372382  4675  2460  24908    447.78  13960  27681   288274   1797   6069  60171
 11   15700  362182   1096.54  19698  39070  382149  15623  400  641.88  18090  35880  408262  4431  1561  26469    447.92  13510  26802   315076   1768   6093  66264
 12   15400  392727   1096.47  20217  40100  422249  16078  401  642.00  17990  35684  443946  4438  1553  28022    448.09  13000  25787   340863   1711   5978  72242
 13   15500  423471   1096.38  22745  45114  467363  18080  401  642.35  16990  33703  477649  4230  1603  29625    448.30  11500  22803   363666   1549   5980  78222
 14   15500  454215   1096.26  19505  38688  506050  16230  420  642.70  15780  31308  508957  3945  2596  32221    448.72   8540  16938   380604   1165   5988  84210
 15   15500  484959   1096.08  23135  45888  551938  18390  401  643.21  15560  30858  539815  3844  2575  34796    448.52  13290  26366   406970   1773   5988  90198
 16   15500  515702   1096.08  16726  33176  585114  13235  399  643.07  17810  35318  575133  4422  2571  37367    448.20  14730  29222   436192   1926   5982  96180
 17   15500  546446   1096.16  13578  26932  612046  10579  393  642.67  17800  35311  610444  4410  2549  39915    448.13  13420  26617   462809   1767   5978 102159
 18   15500  577190   1096.03  20590  40840  652886  16437  402  642.88  17780  35274  645718  4401  2545  42460    448.10  14190  28153   490962   1878   6028 108186
 19   13900  604760   1096.02  17751  35208  688094  14126  401  642.80  17990  35685  681403  4457  2577  45037    447.93  14800  29358   520320   1952   5954 114141
 20   14700  633917   1095.99  18901  37490  725584  15039  401  642.81  17600  34901  716304  4371  2521  47558    448.00  13000  25776   546096   1706   6040 120180
 21   15500  664661   1095.91  19267  38216  763800  15231  399  643.14  16000  31744  748048  3952  2501  50059    448.34   9690  19212   565308   1322   6042 126222
 22   15400  695207   1095.89  17941  35586  799386  14184  399  643.04  17790  35295  783343  4413  2541  52600    448.08  15210  30171   595479   2020   6046 132268
 23   15400  725752   1095.86  18029  35760  835146  14338  401  642.95  17800  35298  818641  4406  2553  55152    448.13  13200  26174   621653   1732   6040 138307
 24   15500  756496   1096.01  12102  24004  859151   9405  392  642.62  17190  34092  852733  4247  2515  57667    448.14  13100  25986   647639   1734   6044 144351
 25   15500  787240   1095.92  19416  38512  897663  15344  398  642.87  15980  31702  884435  4027  2053  59720    448.12  13190  26172   673811   1753   6046 150397
 26   15400  817785   1095.96  16705  33134  930796  13195  398  642.75  17000  33718  918153  4284  2093  61813    448.29  12010  23812   697623   1573   6006 156403
 27   15400  848331   1095.91  18727  37144  967940  14849  400  642.93  16000  31727  949880  3948  2093  63905    448.39  10400  20627   718250   1401   5990 162393
 28   15400  878876   1095.85  17945  35594 1003534  14252  400  642.84  16990  33703  983583  4198  2612  66518    448.54  10400  20631   738881   1411   6006 168399
 29   15400  909421   1095.84  19316  38312 1041846  15304  399  643.42  15970  31674 1015257  3946  2584  69102    448.66  12000  23797   762678   1615   6012 174411
 30   15400  939967   1095.76  18438  36572 1078418  14544  398  643.30  16000  31733 1046990  3967  2582  71685    448.54  12000  23807   786485   1614   6014 180424

TOTAL                                               430938                                   130796                                                52284










                                                                    BUREAU OF RECLAMATION
                                                                    LOWER COLORADO REGION
                                                                    BOULDER CITY, NEVADA

                                                     AVAILABLE RESERVOIR ELEVATIONS AND CONTENTS FOR APRIL 2011

                                        LAKE MEAD                      LAKE MOHAVE                      LAKE HAVASU                        SENATOR WASH
  AVAILABLE CAPACITY IN A.F.            *26120000                        1809800                           619400                              9144
  ELEVATION IN FEET                        1219.6                          647.0                            450.0                             240.0

           TOTAL     TOTAL    |             HOOVER            |            DAVIS            |             PARKER            |             SENATOR WASH
          SYSTEM    AVAILABLE |ELEVATION    CONTENT   RELEASE |ELEVATION   CONTENT  RELEASE |ELEVATION    CONTENT   RELEASE | ELEVATION   CONTENT  PUMPED   RELEASE
     DAY  STORAGE**   SPACE   |  FEET       1000A.F.    ft3/s |  FEET      1000A.F.  ft3/s  |   FEET      1000A.F.  ft3/s   |  FEET        A.F.     ft3/s    ft3/s
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------
       1    31491.7  29633.3    1096.38      11169       19900   643.33     1707.8    18500    447.86      577.4    15600      232.40     6504        0      630
       2    31471.0  29654.0    1096.48      11178       13000   642.83     1694.1    18600    447.72      574.7    15000      231.28     6158       22      174
       3    31466.9  29658.2    1096.65      11193       13500   642.71     1690.8    18600    447.76      575.5    14500      233.68     6913      423        0
       4    31449.5  29675.5    1096.67      11195       17000   642.38     1681.8    18600    447.71      574.5    14500      233.43     6833      147      165
       5    31436.4  29688.6    1096.74      11201       15600   641.99     1671.1    18800    447.56      571.7    15700      232.99     6690        0       24
       6    31430.5  29694.6    1096.79      11206       16200   641.80     1666.0    18900    447.63      573.0    14000      232.77     6620        0        0
       7    31416.0  29709.1    1096.62      11191       22900   641.99     1671.1    19100    447.69      574.1    13000      232.51     6538        0        0
       8    31413.1  29712.0    1096.56      11185       23300   642.24     1678.0    18900    447.69      574.1    15000      232.23     6450        0        0
       9    31397.2  29727.8    1096.57      11186       15100   641.96     1670.3    18900    447.75      575.3    14100      234.61     7220      435        0
      10    31397.5  29727.5    1096.61      11190       16600   641.77     1665.2    18900    447.78      575.8    14000      238.78     8687      808        0
      11    31398.1  29726.9    1096.54      11184       19700   641.88     1668.2    18100    447.92      578.5    13500      239.54     8971      274        0
      12    31396.9  29728.1    1096.47      11177       20200   642.00     1671.4    18000    448.09      581.7    13000      239.76     9054      141        0
      13    31397.6  29727.5    1096.38      11169       22700   642.35     1681.0    17000    448.30      585.8    11500      239.90     9106      127        0
      14    31410.8  29714.3    1096.26      11159       19500   642.70     1690.5    15800    448.72      594.0     8540      239.50     8956       15        0
      15    31404.2  29720.9    1096.08      11143       23100   643.21     1704.5    15600    448.52      590.1    13300      239.50     8956       86        0
      16    31393.7  29731.4    1096.08      11143       16700   643.07     1700.6    17800    448.20      583.9    14700      237.64     8270       85      376
      17    31393.7  29731.4    1096.16      11150       13600   642.67     1689.7    17800    448.13      582.5    13400      233.55     6871        0      705
      18    31394.8  29730.3    1096.03      11139       20600   642.88     1695.4    17800    448.10      581.9    14200      231.17     6124        0      365
      19    31394.6  29730.4    1096.02      11138       17800   642.80     1693.2    18000    447.93      578.7    14800      230.98     6066        0        0
      20    31400.6  29724.4    1095.99      11135       18900   642.81     1693.5    17600    448.00      580.0    13000      230.79     6010        0        0
      21    31417.4  29707.7    1095.91      11128       19300   643.14     1702.6    16000    448.34      586.6     9690      230.61     5956       21       15
      22    31429.5  29695.6    1095.89      11126       17900   643.04     1699.8    17800    448.08      581.6    15200      235.50     7520      841        5
      23    31442.2  29682.8    1095.86      11124       18000   642.95     1697.3    17800    448.13      582.5    13200      238.67     8647      631        0
      24    31463.2  29661.8    1096.01      11137       12100   642.62     1688.3    17200    448.14      582.7    13100      239.54     8971      302        0
      25    31487.2  29637.9    1095.92      11129       19400   642.87     1695.2    16000    448.12      582.3    13200      239.90     9106      167        0
      26    31504.1  29621.0    1095.96      11132       16700   642.75     1691.9    17000    448.29      585.6    12000      239.99     9140      118        0
      27    31531.2  29593.9    1095.91      11128       18700   642.93     1696.8    16000    448.39      587.6    10400      239.72     9039       48        0
      28    31544.9  29580.2    1095.85      11123       17900   642.84     1694.3    17000    448.54      590.5    10400      239.32     8888       11        0
      29    31568.7  29556.3    1095.84      11122       19300   643.42     1710.2    16000    448.66      592.8    12000      239.25     8862      103      244
      30    31577.0  29548.1    1095.76      11115       18400   643.30     1706.9    16000    448.54      590.5    12000      234.84     7297        0      593

TOTAL                                                   543600                       528100                        396530                          4805     3296
AVE.                                                     18120                        17600                         13220                           160      110
AC FT                                                  1078000                      1047000                        787000                          9531     6538

      * BOTTOM OF EXCLUSIVE FLOOD CONTROL SPACE
     ** INCLUDES FONTENELLE AND CRYSTAL RESERVOIRS


                                                                      BUREAU OF RECLAMATION
                                                                      LOWER COLORADO REGION
                                                                      BOULDER CITY, NEVADA

                                             COLORADO RIVER STORAGE PROJECT DATA (operational) FOR APRIL 2011

                   LAKE POWELL          |        FLAMING GORGE        |          NAVAJO            |      BLUE MESA             |     MORROW POINT
             MAX. STORAGE 24322000 AF   |  MAX. STORAGE 3749000 AF    | MAX. STORAGE 1696000 AF    | MAX. STORAGE 829500 AF     | MAX. STORAGE 117025 AF  
    COMPUTED MAX. ELEV. 3700.0 FEET     |  MAX. ELEV. 6040.0 FEET     | MAX. ELEV. 6085.0 FEET     | MAX. ELEV. 7519.4 FEET     | MAX. ELEV. 7160.0 FEET
     INFLOW  ELEVATION CONTENT  RELEASE |  ELEVATION CONTENT  RELEASE | ELEVATION CONTENT  RELEASE | ELEVATION CONTENT  RELEASE | ELEVATION CONTENT  RELEASE
DATE FT3/S   (FEET)  (1000 AF)   FT3/S  |  (FEET)  (1000 AF)   FT3/   |(FEET)  (1000 AF)   FT3/S   | (FEET)  (1000 AF)   FT3/S  |(FEET)  (1000 AF)   FT3/S
------------------------------------------------------------------------------------------------------------------------------------------------------------
   1  10500   3610.58   12789    18400      6025.09   3160     1020      6058.31   1330      500     7478.32    493.8    1530     7154.45    112.6    1540
   2   9400   3610.41   12772    18300      6025.19   3170     1050      6058.36   1330      500     7478.19    492.9    1560     7154.82    112.9    1510
   3   7100   3610.19   12749    18800      6025.29   3170     1060      6058.42   1330      500     7478.15    492.6    1440     7155.00    113.0    1440
   4   9300   3610.06   12736    16000      6025.35   3170     1140      6058.57   1330      500     7478.00    491.5    1500     7155.24    113.2    1460
   5  11400   3609.97   12727    15900      6025.43   3180     1640      6058.66   1330      500     7477.87    490.6    1440     7154.94    113.0    1600
   6  13000   3609.91   12721    15900      6025.41   3180     2150      6058.72   1330      500     7477.72    489.5    1690     7155.06    113.1    1720
   7  13000   3609.85   12715    15900      6025.41   3180     2670      6058.85   1330      510     7477.49    487.9    1690     7155.34    113.3    1650
   8  13100   3609.79   12709    15900      6025.45   3180     3060      6058.93   1330      500     7477.35    486.9    1650     7155.17    113.1    1780
   9  11400   3609.70   12700    15900      6025.43   3180     3040      6058.98   1330      500     7477.19    485.7    1640     7155.14    113.1    1740
  10  18500   3609.74   12704    15900      6025.37   3170     3040      6059.02   1340      500     7477.04    484.7    1690     7155.34    113.3    1670
  11  16700   3609.75   12705    15700      6025.39   3170     2980      6059.07   1340      500     7476.86    483.4    1680     7155.39    113.3    1710
  12  16400   3609.76   12706    15400      6025.35   3170     3040      6059.08   1340      500     7476.70    482.2    1700     7155.32    113.3    1800
  13  13700   3609.72   12702    15500      6025.37   3170     3040      6059.07   1340      500     7476.48    480.7    1690     7155.16    113.1    1850
  14  21400   3609.82   12712    15500      6025.29   3170     3040      6059.04   1340      500     7476.39    480.0    1640     7155.05    113.1    1770
  15  17000   3609.84   12714    15500      6025.25   3170     3040      6059.01   1340      600     7476.24    479.0    1640     7154.82    112.9    1800
  16  17500   3609.87   12717    15500      6025.19   3170     3040      6058.99   1340      650     7476.11    478.0    1640     7154.67    112.7    1790
  17  18100   3609.91   12721    15500      6025.23   3170     3050      6059.01   1340      640     7476.02    477.4    1640     7154.63    112.7    1790
  18  19700   3609.98   12728    15500      6025.19   3170     3040      6059.08   1340      640     7475.98    477.1    1640     7154.66    112.7    1830
  19  15400   3610.00   12730    13900      6025.19   3170     3020      6059.22   1340      650     7476.10    478.0    1640     7155.12    113.1    1690
  20  17900   3610.05   12735    14700      6025.17   3170     3050      6059.35   1340      540     7476.15    478.3    1640     7155.23    113.2    1810
  21  19700   3610.12   12742    15500      6025.15   3170     3060      6059.47   1340      500     7476.16    478.4    1640     7155.11    113.1    1900
  22  26300   3610.31   12762    15400      6025.17   3170     3060      6059.61   1340      490     7476.21    478.8    1610     7155.23    113.2    1780
  23  24600   3610.47   12778    15400      6025.17   3170     3060      6059.73   1340      500     7476.30    479.4    1230     7153.98    112.2    1900
  24  24700   3610.63   12794    15500      6025.13   3170     3060      6059.94   1350      510     7476.46    480.5     970     7152.40    111.0    1830
  25  29100   3610.87   12818    15500      6025.13   3170     3070      6060.15   1350      510     7476.55    481.2    1250     7151.45    110.2    1800
  26  24700   3611.03   12834    15400      6025.07   3160     3530      6060.32   1350      500     7476.50    480.8    1620     7151.30    110.1    1840
  27  31300   3611.31   12863    15400      6024.99   3160     4150      6060.49   1350      500     7476.47    480.6    1510     7150.82    109.7    1810
  28  28000   3611.53   12885    15400      6024.93   3160     4530      6060.63   1360      500     7476.32    479.5    1830     7151.26    110.1    1740
  29  23500   3611.67   12899    15400      6024.81   3150     4530      6060.64   1360      500     7476.13    478.2    1960     7151.82    110.5    1840
  30  30200   3611.93   12926    15400      6024.71   3150     4530      6060.75   1360      500     7475.97    477.1    1850     7152.20    110.8    1860

TOT  552600                     473900                        86790                        15740                        47850                        52250
AVE   18420                      15800                         2890                          520                         1590                         1740
A F 1096100                     940000                       172000                        31200                        94900                       103600







                                          BUREAU OF RECLAMATION
                                          LOWER COLORADO REGION
                                          BOULDER CITY, NEVADA

                                     GLEN CANYON TO HOOVER DAM LOSSES

                                                APRIL 2011

                      |           | LAKE    |         |   LAKE|    LAKE   |  CHANGE |
               GLEN   |    HOOVER | MEAD    |  STORAGE|   MEAD|    MEAD   |   BANK  |       |          |
              RELEASE |    RELEASE| STORAGE |  CHANGE |PUMPING|EVAPORATION| STORAGE |  LOSS |  ACCUMUL.|  INFLOW
   DATE |      CFS    |     CFS   | 1000 AF |  1000 AF|    CFS|     CFS   |    CFS  |   CFS |     A.F. |   CFS
--------------------------------------------------------------------------------------------------------------------
      1        18400       19900     11169        -1       556       679       -33     -2251     -4464     20600
      2        18300       13000     11178         9       565       679       295      -702     -5856     19100
      3        18800       13500     11193        15       571       679       492     -4419    -14621     22800
      4        16000       17000     11195         2       570       679        66     -1013    -16629     19300
      5        15900       15600     11201         6       561       679       197     -1287    -19182     20100
      6        15900       16200     11206         5       573       679       164     -4133    -27380     20100
      7        15900       22900     11191       -15       584       679      -492      -236    -27848     16100
      8        15900       23300     11185        -6       570       679      -197     -5472    -38702     21300
      9        15900       15100     11186         1       546       679        33      -984    -40654     16900
     10        15900       16600     11190         4       498       679       131     -4000    -48589     19900
     11        15700       19700     11184        -6       509       679      -197     -1773    -52105     17700
     12        15400       20200     11177        -7       516       679      -229     -1752    -55581     17600
     13        15500       22700     11169        -8       538       679      -262     -3906    -63328     19600
     14        15500       19500     11159       -10       567       679      -328        61    -63206     15400
     15        15500       23100     11143       -16       555       679      -524      -224    -63651     15700
     16        15500       16700     11143         0       575       679         0     -2411    -68434     18000
     17        15500       13600     11150         7       567       679       229     -3088    -74560     18600
     18        15500       20600     11139       -11       562       679      -360      -445    -75443     15900
     19        13900       17800     11138        -1       585       679       -33     -3066    -81523     18500
     20        14700       18900     11135        -3       595       679       -98     -3087    -87646     18600
     21        15500       19300     11128        -7       600       679      -229     -2883    -93364     16800
     22        15400       17900     11126        -2       620       679       -66     -3378   -100065     18100
     23        15400       18000     11124        -2       619       679       -66     -2751   -105521     18200
     24        15500       12100     11137        13       563       679       426     -4890   -115220     20300
     25        15500       19400     11129        -8       579       679      -262      -918   -117041     16400
     26        15400       16700     11132         3       594       679        98     -4125   -125223     19600
     27        15400       18700     11128        -4       590       679      -131     -2370   -129923     17800
     28        15400       17900     11123        -5       614       679      -164     -1066   -132037     16500
     29        15400       19300     11122        -1       615       679       -33     -4624   -141210     20100
     30        15400       18400     11115        -7       608       679      -229      -532   -142266     15900

    TOTAL     473900      543700                         17165     20370                       -142266    551600








  

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Contact: Water Operations Control Center
Updated: March 2011

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