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                                                                    BUREAU OF RECLAMATION
                                                                    LOWER COLORADO REGION
                                                                    BOULDER CITY, NEVADA

                                                               ACCUMULATIONS FOR APRIL 2012

    |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    8900   17653   1129.45  10690  21204   21204   9061  427  641.36  18980  37649   37649  4674  3372   3372    447.24  14500  28768    28768   1934   5968   5968
  2   10600   38678   1129.29  16920  33560   54764  14588  435  641.11  18950  37596   75245  4656  3465   6837    447.11  15510  30768    59536   2068   6252  12220
  3   10600   59702   1129.13  19651  38978   93742  16917  434  641.12  18400  36488  111733  4549  3207  10044    446.90  14980  29706    89242   1986   5964  18184
  4   11000   81521   1128.85  20468  40598  134340  17610  434  641.32  17180  34078  145811  4300  3291  13335    446.86  15030  29804   119046   1994   5960  24145
  5   10900  103140   1128.61  21828  43296  177636  18692  432  641.56  17190  34102  179913  4300  3267  16602    447.29   9600  19033   138079   1315   5964  30109
  6   10700  124364   1128.43  21314  42276  219912  18430  436  641.73  19480  38636  218549  4801  3247  19849    447.14  13490  26763   164842   1806   6272  36381
  7    9700  143603   1128.31  15829  31396  251308  13624  434  641.43  18480  36646  255195  4565  3235  23084    447.30  12700  25183   190025   1709   5990  42371
  8    9000  161455   1128.24  14997  29746  281054  12968  436  641.25  18480  36646  291841  4552  3287  26370    447.40  12800  25391   215416   1721   6258  48629
  9   10500  182281   1128.08  18733  37156  318210  16184  436  641.21  17280  34267  326108  4234  3201  29572    447.67  12390  24573   239989   1681   5026  53655
 10   10500  203107   1127.83  23135  45888  364098  19990  436  641.46  18210  36120  362228  4476  3332  32904    447.61  12800  25390   265379   1732   4949  58604
 11   10700  224331   1127.57  18744  37178  401276  16207  436  641.51  18990  37669  399897  4667  3170  36073    447.75  12100  24000   289379   1651   5998  64602
 12   10800  245752   1127.31  25362  50304  451580  21751  432  641.81  18610  36903  436800  4578  3237  39310    448.18  10390  20616   309995   1452   6056  70657
 13   10700  266975   1127.05  26237  52040  503620  22487  432  642.26  18800  37281  474081  4641  3181  42492    448.31  12800  25397   335392   1756   6357  77014
 14    9800  286413   1126.89  17374  34460  538080  14970  434  642.34  18570  36831  510912  4601  3076  45568    448.38  13400  26576   361968   1823   6262  83276
 15    9000  304264   1126.83  13813  27398  565478  11878  434  641.91  18500  36697  547609  4574  3170  48738    448.39  14710  29170   391138   2014   5968  89244
 16   10500  325091   1126.66  20918  41490  606968  17939  432  642.01  18490  36672  584281  4560  3193  51931    448.42  12990  25770   416908   1776   5972  95217
 17   10600  346116   1126.44  21460  42566  649534  18346  431  642.20  18490  36678  620959  4569  3297  55228    448.48  13800  27369   444277   1899   5966 101183
 18   10400  366744   1126.22  18880  37448  686982  16145  431  642.20  18260  36214  657173  4524  3170  58397    448.27  14970  29687   473964   2047   5970 107153
 19   10700  387967   1125.99  23305  46224  733206  19933  431  642.43  18790  37269  694442  4658  3253  61650    448.82   9590  19024   492988   1331   5974 113127
 20   10500  408793   1125.72  24273  48144  781350  20821  432  642.79  19010  37699  732141  4717  3221  64871    448.75  13430  26629   519617   1860   5974 119101
 21    9500  427636   1125.52  21203  42056  823406  18255  434  642.84  18990  37660  769801  4720  3239  68110    448.91  13440  26660   546277   1850   6377 125478
 22    9000  445488   1125.38  18162  36024  859430  15555  432  642.78  18990  37662  807463  4724  3227  71338    448.95  14000  27766   574043   1935   6298 131776
 23   10700  466711   1125.05  26064  51698  911128  22267  431  643.29  19000  37677  845140  4726  3237  74575    448.87  14880  29520   603563   2061   6012 137788
 24   10400  487339   1124.81  21815  43270  954397  18618  430  643.48  17590  34889  880029  4387  3241  77816    448.77  15100  29941   633504   2084   6024 143812
 25   10600  508364   1124.62  23028  45676 1000073  19574  429  643.90  17000  33713  913742  4253  3243  81059    448.50  15390  30527   664031   2111   6030 149841
 26   10400  528992   1124.39  21203  42056 1042129  18037  429  644.14  17380  34482  948224  4353  3229  84288    448.85   9300  18439   682470   1307   6022 155863
 27   10300  549421   1124.22  18540  36774 1078903  15695  427  644.10  17970  35635  983859  4505  3273  87560    448.79  13590  26946   709416   1872   6006 161869
 28    9400  568066   1124.14  15405  30556 1109459  13033  427  643.89  18580  36854 1020713  4653  3223  90783    448.94  12590  24978   734394   1736   5998 167867
 29    9000  585917   1124.11  12327  24450 1133909  10492  429  643.35  18190  36079 1056792  4548  3221  94005    449.01  12790  25374   759768   1774   6284 174151
 30   10600  606942   1123.93  18051  35804 1169713  15259  426  643.35  17080  33875 1090667  4247  3195  97200    449.13  12490  24768   784536   1730   5363 179514

TOTAL                                               505326                                   136312                                                54016










                                                                    BUREAU OF RECLAMATION
                                                                    LOWER COLORADO REGION
                                                                    BOULDER CITY, NEVADA

                                                     AVAILABLE RESERVOIR ELEVATIONS AND CONTENTS FOR APRIL 2012

                                        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    37558.7  23566.4    1129.45      14539       10700   641.36     1654.1    19000    447.24      565.6    14500      237.48     8213      776        0
       2    37542.1  23582.9    1129.29      14522       16900   641.11     1647.4    19000    447.11      563.2    15500      237.01     8045        0        0
       3    37531.0  23594.1    1129.13      14506       19700   641.12     1647.6    18400    446.90      559.3    15000      236.60     7901        0        0
       4    37514.4  23610.7    1128.85      14478       20500   641.32     1653.0    17200    446.86      558.5    15000      236.24     7775        0        0
       5    37512.8  23612.3    1128.61      14454       21800   641.56     1659.5    17200    447.29      566.6     9600      235.90     7657        0        0
       6    37497.9  23627.1    1128.43      14436       21300   641.73     1664.1    19500    447.14      563.7    13500      238.26     8496      487        0
       7    37484.5  23640.6    1128.31      14423       15800   641.43     1656.0    18500    447.30      566.8    12700      240.00     9144      428        0
       8    37481.8  23643.3    1128.24      14416       15000   641.25     1651.2    18500    447.40      568.7    12800      239.79     9065       84        0
       9    37474.0  23651.1    1128.08      14400       18700   641.21     1650.1    17300    447.67      573.8    12400      239.43     8929       46        0
      10    37457.8  23667.2    1127.83      14375       23100   641.46     1656.8    18200    447.61      572.6    12800      239.51     8960      113        0
      11    37446.3  23678.8    1127.57      14349       18700   641.51     1658.2    19000    447.75      575.3    12100      239.56     8979      104        0
      12    37434.1  23690.9    1127.31      14323       25400   641.81     1666.3    18600    448.18      583.5    10400      237.43     8196        0      341
      13    37426.1  23698.9    1127.05      14297       26200   642.26     1678.5    18800    448.31      586.0    12800      237.08     8070        0        0
      14    37413.1  23712.0    1126.89      14281       17400   642.34     1680.7    18600    448.38      587.4    13400      236.69     7933        0        0
      15    37408.8  23716.2    1126.83      14275       13800   641.91     1669.0    18500    448.39      587.6    14700      236.34     7810        0        0
      16    37398.1  23726.9    1126.66      14258       20900   642.01     1671.7    18500    448.42      588.1    13000      236.04     7705        0        0
      17    37382.0  23743.1    1126.44      14236       21500   642.20     1676.9    18500    448.48      589.3    13800      235.74     7603        0        0
      18    37358.9  23766.2    1126.22      14214       18900   642.20     1676.9    18300    448.27      585.2    15000      236.56     7887      194        0
      19    37349.3  23775.8    1125.99      14191       23300   642.43     1683.1    18800    448.82      595.9     9590      237.39     8181      203        0
      20    37330.1  23794.9    1125.72      14164       24300   642.79     1693.0    19000    448.75      594.5    13400      237.02     8048        0        0
      21    37313.0  23812.1    1125.52      14144       21200   642.84     1694.3    19000    448.91      597.7    13400      237.01     8045       68        0
      22    37296.7  23828.4    1125.38      14130       18200   642.78     1692.7    19000    448.95      598.4    14000      236.67     7926        0        0
      23    37268.2  23856.8    1125.05      14097       26100   643.29     1706.7    19000    448.87      596.9    14900      235.69     7586        0      131
      24    37242.8  23882.3    1124.81      14074       21800   643.48     1711.9    17600    448.77      594.9    15100      234.38     7143        0      180
      25    37232.4  23892.6    1124.62      14055       23000   643.90     1723.4    17000    448.50      589.7    15400      235.14     7398      323      160
      26    37226.4  23898.7    1124.39      14032       21200   644.14     1730.1    17400    448.85      596.5     9300      239.92     9114      943        0
      27    37212.6  23912.4    1124.22      14015       18500   644.10     1729.0    18000    448.79      595.3    13600      239.38     8911       18        0
      28    37205.4  23919.6    1124.14      14007       15400   643.89     1723.2    18600    448.94      598.2    12600      239.58     8986      136        0
      29    37191.8  23933.3    1124.11      14004       12300   643.35     1708.3    18200    449.01      599.6    12800      239.82     9076      137        0
      30    37179.8  23945.3    1123.93      13986       18100   643.35     1708.3    17100    449.13      602.0    12500      239.35     8900        0        0

TOTAL                                                   589700                       550300                        395590                          4060      812
AVE.                                                     19660                        18340                         13190                           135       27
AC FT                                                  1170000                      1092000                        785000                          8053     1611

      * 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 2012

                   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  13200   3635.39   15465     8900      6026.87   3230     2660      6057.01   1310      500     7484.61    540.1     590     7156.31    114.1     680
   2  12300   3635.41   15468    10600      6026.87   3230     2670      6057.31   1310      500     7484.78    541.4     610     7156.36    114.1     720
   3  14900   3635.47   15475    10600      6026.79   3230     2670      6057.54   1320      500     7484.87    542.1     650     7156.26    114.0     770
   4  14600   3635.52   15480    11000      6026.73   3220     2670      6057.69   1320      500     7484.94    542.6     660     7156.21    114.0     760
   5  15100   3635.58   15487    10900      6026.69   3220     2660      6057.78   1320      500     7484.96    542.8     780     7156.45    114.2     770
   6  12400   3635.60   15489    10700      6026.61   3220     2650      6057.84   1320      500     7484.97    542.8     790     7156.54    114.2     830
   7  12100   3635.63   15493     9700      6026.55   3220     2650      6057.95   1320      500     7484.94    542.6     840     7156.49    114.2     960
   8  13900   3635.70   15501     9000      6026.47   3210     2660      6058.05   1320      500     7484.94    542.6     870     7156.41    114.1     990
   9  13500   3635.74   15506    10500      6026.41   3210     2640      6058.15   1320      500     7484.91    542.4     850     7156.61    114.3     910
  10  12800   3635.77   15509    10500      6026.35   3210     2650      6058.25   1330      500     7484.90    542.3     920     7157.08    114.7     850
  11  16900   3635.86   15520    10700      6026.29   3210     2640      6058.35   1330      500     7484.93    542.5     810     7157.19    114.8     900
  12   8200   3635.81   15514    10800      6026.29   3210     2420      6058.48   1330      500     7485.00    543.1     870     7157.17    114.7    1010
  13  11800   3635.82   15515    10700      6026.25   3210     2270      6058.62   1330      500     7485.02    543.2     870     7157.00    114.6    1040
  14   8400   3635.79   15511     9800      6026.25   3210     2000      6058.73   1330      500     7485.00    543.1     890     7156.95    114.6    1010
  15  15800   3635.89   15523     9000      6026.25   3210     1790      6058.82   1330      500     7484.95    542.7     890     7156.71    114.4    1060
  16  12800   3635.92   15526    10500      6026.21   3210     1450      6058.89   1330      500     7484.86    542.0    1070     7156.84    114.5    1080
  17  10400   3635.91   15525    10600      6026.23   3210     1460      6058.91   1330      500     7484.77    541.3    1010     7156.66    114.3    1130
  18  12800   3635.94   15529    10400      6026.25   3210     1580      6058.89   1330      500     7484.60    540.0    1140     7156.15    113.9    1400
  19   9900   3635.92   15526    10700      6026.25   3210     1600      6058.84   1330      500     7484.43    538.8    1280     7156.30    114.0    1300
  20  11600   3635.93   15528    10500      6026.23   3210     1600      6058.81   1330      500     7484.28    537.6    1180     7156.26    114.0    1270
  21  10000   3635.93   15528     9500      6026.21   3210     1600      6058.80   1330      500     7484.10    536.3    1250     7156.33    114.1    1310
  22   8900   3635.92   15526     9000      6026.21   3210     1600      6058.82   1330      500     7483.95    535.2    1230     7156.38    114.1    1310
  23   6700   3635.85   15518    10700      6026.19   3200     1600      6058.89   1330      500     7483.83    534.3    1250     7156.58    114.3    1280
  24   7100   3635.79   15511    10400      6026.19   3200     1600      6059.01   1340      500     7483.77    533.8    1130     7156.65    114.3    1230
  25  10600   3635.78   15511    10600      6026.19   3200     1600      6059.16   1340      500     7483.75    533.7    1170     7156.79    114.4    1260
  26  10400   3635.77   15510    10400      6026.19   3200     1600      6059.33   1340      500     7483.73    533.5    1190     7157.11    114.7    1240
  27  10300   3635.77   15509    10300      6026.23   3210     1600      6059.53   1340      500     7483.73    533.5    1050     7157.05    114.7    1240
  28   9500   3635.76   15508     9400      6026.21   3210     1600      6059.70   1340      500     7483.72    533.5    1120     7157.25    114.8    1180
  29   8900   3635.75   15507     9000      6026.21   3210     1600      6059.82   1350      500     7483.64    532.9    1150     7157.21    114.8    1260
  30  11700   3635.76   15508    10600      6026.21   3210     1600      6059.88   1350      500     7483.54    532.1    1080     7157.05    114.7    1250

TOT  347500                     306000                        61390                        15000                        29190                        32000
AVE   11583                      10200                         2050                          500                          970                         1070
A F  689300                     607000                       122000                        29800                        57900                        63500







                                          BUREAU OF RECLAMATION
                                          LOWER COLORADO REGION
                                          BOULDER CITY, NEVADA

                                     GLEN CANYON TO HOOVER DAM LOSSES

                                                APRIL 2012

                      |           | 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         8900       10700     14539         4       473       721       131     -3726     -7389     14000
      2        10600       16900     14522       -17       502       721      -557       251     -6892      9000
      3        10600       19700     14506       -16       556       721      -524     -3437    -13709     12400
      4        11000       20500     14478       -28       540       721      -918      3830     -6112      6730
      5        10900       21800     14454       -24       520       721      -786       484     -5152     10200
      6        10700       21300     14436       -18       557       721      -590     -1925     -8969     12900
      7         9700       15800     14423       -13       567       721      -426       766     -7449     10100
      8         9000       15000     14416        -7       537       721      -229     -1847    -11112     12500
      9        10500       18700     14400       -16       532       721      -524     -1649    -14382     11400
     10        10500       23100     14375       -25       581       721      -819     -2013    -18376     11000
     11        10700       18700     14349       -26       584       721      -852      4421     -9608      6040
     12        10800       25400     14323       -26       549       721      -852     -2253    -14076     12700
     13        10700       26200     14297       -26       560       721      -852     -2786    -19603     13500
     14         9800       17400     14281       -16       550       721      -524       721    -18174     10100
     15         9000       13800     14275        -6       494       721      -197     -1138    -20430     11800
     16        10500       20900     14258       -17       502       721      -557     -3195    -26768     13000
     17        10600       21500     14236       -22       557       721      -721     -1994    -30722     11000
     18        10400       18900     14214       -22       545       721      -721      2100    -26558      8350
     19        10700       23300     14191       -23       554       721      -754     -1649    -29828     12200
     20        10500       24300     14164       -27       629       721      -885      -720    -31255     11200
     21         9500       21200     14144       -20       596       721      -655     -1067    -33372     11800
     22         9000       18200     14130       -14       580       721      -459     -1501    -36349     12000
     23        10700       26100     14097       -33       591       721     -1081      -180    -36706      9690
     24        10400       21800     14074       -23       631       721      -754     -1818    -40312     10800
     25        10600       23000     14055       -19       625       721      -623     -3488    -47230     14100
     26        10400       21200     14032       -23       649       721      -754       146    -46940     10200
     27        10300       18500     14015       -17       650       721      -557      -164    -47265     10700
     28         9400       15400     14007        -8       644       721      -262     -2067    -51365     12500
     29         9000       12300     14004        -3       602       721       -98     -1734    -54805     12000
     30        10600       18100     13986       -18       577       721      -590      -285    -55370      9730

    TOTAL     305700      589730                         17034     21630                        -55371    333600
  

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Contact: Water Operations Control Center
Updated: March 2011

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