CORPS OF ENGINEERS
                                  LITTLE ROCK DISTRICT
 
                        DISSOLVED OXYGEN AND TEMPERATURE REPORT
 
                                   FRIDAY    18 AUG 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    |
               |--------------------|-------------|------|--------------------|
     17AUG 0600|  6.2 | 58.5 |      |  6.8 | 59.2 |   501|  63.1   |   17686  |
     17AUG 1200|  5.9 | 58.6 |      |  5.0 | 59.6 |  4669|  63.6   |   16609  |
     17AUG 1800|  5.6 | 58.9 |      |  4.9 | 59.5 |  4642|  64.0   |   17888  |
     17AUG 2400|  6.5 | 58.8 |      |  8.6 | 59.5 |   301|  63.1   |   18191  |
     18AUG 0600|  5.9 | 58.6 |      |  8.6 | 59.0 |   301|  62.9   |   16407  |
               |      |      |      |      |      |      |         |          |
         MAX   |  6.5 | 59.1 |      |  8.6 | 59.6 |      |   64.0  |          |
          time | 2400 | 1600 |      | 0500 | 1200 |      |   1700  |          |
          date |17AUG |17AUG |      |18AUG |17AUG |      |  17AUG  |          |
  release @ max|      |      |      |   300|  4669|      |   16609 |          |
               |      |      |      |      |      |      |         |          |
         MIN   |  5.4 | 58.5 |      |  4.9 | 59.0 |      |   62.8  |          |
          time | 2000 | 0600 |      | 1700 | 0600 |      |   0200  |          |
          date |17AUG |17AUG |      |17AUG |18AUG |      |  18AUG  |          |
  release @ min|      |      |      |  4604|   301|      |   16407 |          |
  _____________|______|______|______|______|______|______|_________|__________|
 
  LAKE PROFILES
 
      BULL SHOALS 18JUL17       NORFORK 19JUL17
         elev = 687.23             elev = 572.31
      DEPTH  D.O.   TEMP        DEPTH  D.O.   TEMP
      feet   mg/l   deg F       feet   mg/l   deg F
      -----  -----  -----       -----  -----  -----
       0.4    7.86  90.46         0.5  7.69  91.96
      10.0    8.72  87.35<        4.0  7.92  89.51
      22.0    6.97  74.80        10.0  8.07  88.23<
      26.0    4.20  68.11<       22.0  0.74  77.54
      35.0    1.31  63.72        26.0  0.22  72.72<
      70.0    3.55  60.57        46.0  0.37  63.93
     100.0    5.53  59.05        80.0  3.32  60.33
     130.0    6.58  58.01       120.0  3.50  57.74
     150.0    6.45  56.57*      130.0  2.73  56.95*
     180.0    3.78  50.59       140.0  1.95  56.16
     200.0    3.62  49.19       190.0  0.29  52.12
 
     I.D.O. = 5.88 mg/l         I.D.O. = 2.97 mg/l
 
      < = Approximate range of thermocline
      * = Approximate centerline of penstock
 
  _____________________________________________________________________________
 
  REMARKS
 
  Norfork vents blocked open 15 June.  Bull Shoals generation data is not
  reporting. Bull Shoals vents blocked open 31 July. Norfork siphon on
  continuously as of 1 August. Norfork max gen rate of 75% issued 16 August.