CORPS OF ENGINEERS
                                  LITTLE ROCK DISTRICT
 
                        DISSOLVED OXYGEN AND TEMPERATURE REPORT
 
                                   WEDNESDAY 13 DEC 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  |
               |--------------------|-------------|------|--------------------|
     12DEC 0600|  7.8 | 54.1 |    20| 13.9 | 55.7 |  3592|  6.9 | 52.9 |    20|
     12DEC 1200|  7.5 | 54.9 |  3920| 12.9 | 55.7 |  5702|  7.6 | 54.7 |    20|
     12DEC 1800|  7.3 | 54.8 |  3461| 12.1 | 55.6 |  7180|  7.6 | 54.5 |    20|
     12DEC 2400|  6.8 | 54.1 |    20| 13.0 | 55.5 |  2515|  6.9 | 54.0 |    20|
     13DEC 0600|  7.2 | 54.6 |  3375| 12.6 | 55.4 |  4382|  7.0 | 52.5 |    20|
               |      |      |      |      |      |      |      |      |      |
         MAX   |  9.7 | 55.1 |      | 14.5 | 56.4 |      |  8.1 | 55.9 |      |
          time | 1700 | 1400 |      | 0900 | 1500 |      | 1500 | 1400 |      |
          date |12DEC |12DEC |      |12DEC |12DEC |      |12DEC |12DEC |      |
  release @ max|    20|    20|      |  4359|    20|      |    20|    20|      |
               |      |      |      |      |      |      |      |      |      |
         MIN   |  6.7 | 53.4 |      | 11.4 | 55.4 |      |  6.4 | 52.5 |      |
          time | 0100 | 0200 |      | 2000 | 0600 |      | 1900 | 0600 |      |
          date |13DEC |13DEC |      |12DEC |13DEC |      |12DEC |13DEC |      |
  release @ min|    20|    20|      |  9691|  4382|      |   334|    20|      |
  _____________|______|______|______|______|______|______|______|______|______|
 
  LAKE PROFILES
 
        BEAVER 27Nov17          TABLE ROCK 28Nov17        GREERS FERRY 29Nov17
         elev = 1118.4           elev = 914.5              elev = 456.7
      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
      -----  -----  -----       -----  -----  -----       -----  -----  -----
        0.5   8.03  58.80         0.4   6.36  58.28         0.5  7.04   59.83
       20.0   7.51  58.64        20.0   6.32  58.28        20.0  6.64   59.32
       40.0   7.11  58.41        40.0   6.29  58.28        40.0  6.65   59.27
       60.0   7.26  58.37        60.0   6.28  58.28        60.0  6.56   59.25
       80.0   7.42  58.37        80.0   6.21  58.28        80.0  4.19   59.05<
      100.0   6.61  58.28       100.0   6.04  58.28        90.0  2.23   58.42
      110.0   4.74  58.14<      120.0   5.58  58.21       100.0  2.15   57.45
      115.0   0.31  57.70<      140.0   3.32  58.06       110.0  1.62   56.25<
      130.0   0.30  56.23*      150.0   3.48  58.03<      120.0  0.32   54.99*
      150.0   0.32  52.77       160.0   0.31  57.38*      130.0  0.29   54.03
      170.0   0.34  50.40       170.0   0.29  56.70<      140.0  0.32   53.37
      184.8   0.35  49.44       175.7   0.30  55.33       148.7  0.31   52.99
 
 
      I.D.O. =  3.03 mg/l       I.D.O. = 4.15 mg/l        I.D.O. = 2.05 mg/l
 
      < = Approximate range of thermocline
      * = Approximate centerline of penstock
 
  _____________________________________________________________________________
 
  REMARKS
 
  Greers Ferry vents blocked open 24 July.  Table Rock no RMGR as of
  11 December. Beaver no RMGR as of 27 November.  Table Rock vents
  closed 12 December.  Beaver vents closed 13 December.