CORPS OF ENGINEERS
                                  LITTLE ROCK DISTRICT
 
                        DISSOLVED OXYGEN AND TEMPERATURE REPORT
 
                                   FRIDAY    21 JUL 2017
                ______________________________________________________________
               |                    |                    |                    |
               |  BULL SHOALS       |  NORFORK           |   CALICO ROCK      |
               |  (tailwater, avg.) |  (tailwater, avg)  |   TEMP & FLOW      |
               |____________________|____________________|____________________|
               | D.O. | TEMP | REL  | D.O. | TEMP | REL  |  TEMP   |  FLOW    |
               |------|------|------|------|------|------|--------------------|
               | mg/l |deg F | cfs  | mg/l |deg F | cfs  |  deg F  |   cfs    |
               |--------------------|-------------|------|--------------------|
     20JUL 0600|  8.4 | 57.3 |      |      |      |  2892|         |   15262  |
     20JUL 1200|  7.3 | 57.0 |      |  4.6 | 58.1 |  5727|  62.7   |   14541  |
     20JUL 1800|  6.3 | 56.8 |      |  4.7 | 58.2 |  5685|         |   11920  |
     20JUL 2400|  7.8 | 57.8 |      |  6.4 | 58.1 |  3153|  63.9   |   11760  |
     21JUL 0600|  8.2 | 57.9 |      |  4.6 | 58.0 |  5696|  63.1   |   20543  |
               |      |      |      |      |      |      |         |          |
         MAX   |  8.9 | 58.0 |      |  6.4 | 58.3 |      |   65.0  |          |
          time | 0800 | 0300 |      | 2400 | 1400 |      |   1900  |          |
          date |20JUL |21JUL |      |20JUL |20JUL |      |  20JUL  |          |
  release @ max|      |      |      |  3153|  5715|      |   13686 |          |
               |      |      |      |      |      |      |         |          |
         MIN   |  6.3 | 56.8 |      |  4.5 | 58.0 |      |   62.7  |          |
          time | 1900 | 1500 |      | 2000 | 0400 |      |   1200  |          |
          date |20JUL |20JUL |      |20JUL |21JUL |      |  20JUL  |          |
  release @ min|      |      |      |  5643|  5660|      |   19066 |          |
  _____________|______|______|______|______|______|______|_________|__________|
 
  LAKE PROFILES
 
      BULL SHOALS 15JUN17       NORFORK 14JUN17
         elev = 689.75             elev = 574.76
      DEPTH  D.O.   TEMP        DEPTH  D.O.   TEMP
      feet   mg/l   deg F       feet   mg/l   deg F
      -----  -----  -----       -----  -----  -----
       0.6    8.65  81.07         0.6  7.95  77.25
      14.9    8.83  75.09<        5.0  7.26  73.24
      17.1    7.98  70.39        10.0  4.88  70.43<
      20.0    7.70  68.52<       20.0  1.90  67.68
      40.0    3.91  62.62        34.0  2.94  63.18<
      70.0    5.32  60.28        60.0  4.39  60.91
     100.0    7.18  58.39       110.0  5.26  57.45
     130.0    7.38  57.20       120.0  5.02  56.62
     150.0    7.61  54.19*      130.0  4.67  54.88*
     168.0    6.69  50.68       140.0  3.24  53.62
     180.0    5.97  49.26       170.0  0.56  51.66
 
     I.D.O. = 6.47 mg/l         I.D.O. = 4.45 mg/l
 
      < = Approximate range of thermocline
      * = Approximate centerline of penstock
 
  _____________________________________________________________________________
 
  REMARKS
 
  Norfork vents blocked open 15 June.  Bull Shoals generation data is not
  reporting consistantly.