CORPS OF ENGINEERS
                                  LITTLE ROCK DISTRICT
 
                        DISSOLVED OXYGEN AND TEMPERATURE REPORT
 
                                   THURSDAY  21 SEP 2017
                ______________________________________________________________
               |                    |                    |                    |
               |  BEAVER            |  TABLE ROCK        |  GREERS FERRY      |
               |  (tailwater)       |  (tailwater)       |  (tailwater)       |
               |____________________|____________________|_____________ ______|
               | D.O. | TEMP | REL  | D.O. | TEMP | REL  | D.O. | TEMP | REL  |
               |------|------|------|------|------|------|------|------|------|
               | mg/l |deg F | cfs  | mg/l |deg F | cfs  | mg/l | deg F| cfs  |
               |--------------------|-------------|------|--------------------|
     20SEP 0600|  5.4 | 54.1 |    20|  5.8 | 58.3 |  2576|  6.3 | 56.5 |    20|
     20SEP 1200|  4.5 | 55.3 |  3841|  6.3 | 58.4 |  2386|  7.5 | 59.7 |    20|
     20SEP 1800|  4.3 | 55.3 |  3827|  5.4 | 58.3 |  7019|  5.0 | 56.8 |  6275|
     20SEP 2400|  2.8 | 55.5 |    20|  5.8 | 58.3 |  2127|  6.1 | 57.0 |    20|
     21SEP 0600|  4.9 | 55.3 |  3497|  5.6 | 58.3 |  2494|  6.2 | 56.7 |    20|
               |      |      |      |      |      |      |      |      |      |
         MAX   |  7.0 | 55.5 |      |  6.3 | 58.4 |      |  7.8 | 61.3 |      |
          time | 0900 | 2400 |      | 1200 | 1200 |      | 1300 | 1300 |      |
          date |20SEP |20SEP |      |20SEP |20SEP |      |20SEP |20SEP |      |
  release @ max|    20|    20|      |  2386|  2386|      |    20|    20|      |
               |      |      |      |      |      |      |      |      |      |
         MIN   |  2.8 | 53.4 |      |  4.1 | 58.3 |      |  5.0 | 56.5 |      |
          time | 2400 | 0400 |      | 1600 | 1900 |      | 1700 | 0600 |      |
          date |20SEP |21SEP |      |20SEP |20SEP |      |20SEP |20SEP |      |
  release @ min|    20|    20|      |  8398|  4679|      |  6250|    20|      |
  _____________|______|______|______|______|______|______|______|______|______|
 
  LAKE PROFILES
 
        BEAVER 13SEP17          TABLE ROCK 14SEP17        GREERS FERRY 28AUG17
         elev = 1124.83           elev = 916.75             elev = 460.99
      DEPTH  D.O.   TEMP        DEPTH  D.O.   TEMP        DEPTH  D.O.   TEMP
      feet   mg/l   deg F       feet   mg/l   deg F       feet   mg/l   deg F
      -----  -----  -----       -----  -----  -----       -----  -----  -----
        0.1   8.49  76.96         0.5   7.28  77.97         0.5  7.10   83.28
       20.0   8.48  75.97        20.0   7.21  77.94<       20.2  7.10   81.88<
       33.0   8.30  75.79<       30.1   5.69  76.66<       26.1  7.06   80.58
       35.0   4.90  71.87<       32.0   2.31  74.52        32.1  6.02   76.03<
       40.0   1.87  66.47        33.0   0.15  72.28        40.0  3.54   69.85
       60.0   2.34  61.28        90.0   0.00  64.96        50.1  2.07   64.20
      110.0   2.47  57.23       100.0   1.17  62.02        90.2  3.87   57.83
      120.0   2.72  55.74       130.0   2.00  59.50       110.2  3.35   55.04
      140.0   1.91  52.18*      140.0   1.71  57.92*      120.2  2.51   53.92*
      150.0   0.74  50.93       150.0   0.69  56.57       130.1  1.49   52.92
      160.0   0.00  50.02       170.0   0.00  53.42       140.2  0.89   52.50
      184.6   0.00  48.45       176.7   0.00  52.23       150.3  0.00   52.00
 
 
      I.D.O. =  2.08 mg/l       I.D.O. = 0.43 mg/l        I.D.O. = 2.61 mg/l
 
      < = Approximate range of thermocline
      * = Approximate centerline of penstock
 
  _____________________________________________________________________________
 
  REMARKS
 
  Vents opened at Beaver 29 June. Greers Ferry vents blocked open 24 July.
  Table Rock max gen rate is 60% nameplate capacity starting September 05.
  LOX injected starting on 16 Aug.