2005 Shell Creek
Watershed Study




             1
Shell Creek and Loseke-Taylor Creek Watersheds
             (with Township-Range Labels)
     Lower Platte North Natural Resources District




                                 2
Site 1




         3
Site 2




         4
Site 3




         5
Site 4




         6
Site 5




         7
W.Q.I.
• The Water Quality Index was developed by the
  National Sanitation Foundation as a standard
  system to compare different bodies of water.
• To determine the WQI, a series of nine tests
  were performed. These tests were: dissolved
  oxygen, fecal coliform, pH, Biological Oxygen
  Demand (BOD), temperature, total phosphate,
  nitrates, turbidity, and total solids. We also did a
  water discharge test which we use to measure
  the flow of the creek in cubic feet per second.
                                         8
• After the tests are completed, the WQI for each
  section of the creek can be computed.
• To formulate the WQI, we first computed Q-
  values.
• We multiply this number by a weighting factor,
  which provides a measure of the relative
  importance of each test to overall water quality.
• The water quality index ranges from zero to 100.
     - 0 - 25 is very bad
     - 25 - 50 is bad
     - 50 - 70 is medium
     - 70 - 90 is good
     - 90 - 100 is excellent
• The bio-indicator tests weren’t part of W.Q.I., but
                                        9
  did give us a water quality rating.
Sample W.Q.I. Curve Chart




                    10
Sample W.Q.I. Form
                                     Weighting   T   o   t a   l


                Test Results Q-value  Factor
      DO          % sat.               0.17
Fecal Coliform col/100 mL              0.16
       pH          units               0.11
      BOD          mg/L                0.11
 Temperature change in C               0.1
Total Phosphate    mg/L                0.1
   Nitrates        mg/L                0.1
   Turbidity        JTU                0.08
 Total Solids      mg/L                0.07

              Overall Water Quality Index ___
                                       11
Test       Natural Readings        Cautionary
                                          Readings
Dissolved Oxygen % 90% or higher     Below 90% unless the
                                     waters are
Saturation                           supersaturated due to
                                     cultural eutrophication.

pH                6.5-8.5            Below 6.5
                                     Above 8.5

Nitrates          0.0-1.0 ppm        Consistent readings
                                     above 3.5 ppm
Change in                            The higher the change,
                                     the worse the water
Temperature
                                     quality.


Turbidity         0-8 JTU’s          Increasing trends in
                                     turbidity measurements.
                                          12
Test      Natural Readings        Cautionary
                                         Readings
5 Day B.O.D                         The higher the difference
                                    between the original and
                                    the 5 day reading, the
                                    worse the water.


Phosphates       Less than 1 mg/L More than 1 mg/L


Total Solids                        The higher the
                                    concentration, the
                                    worse the water.
Fecal Coliform                      Over 200 colonies/100
                                    mL of water
                                        13
pH    Change in     Total      Fecal     Discharge
                           Water      Solids    Coliform     (cubic
                           Temp.     (mg/L)    (Col./100    ft./sec.)
                         (Degrees                 mL)
                          Celsius)

May 31   Site 1   8.0      0.6        540        900         2.503
         Site 2   7.8      -0.1       530        300         1.115
         Site 3   8.0      0.2        470        800          7.93
         Site 4   8.0      -0.1       450        1100        6.306
         Site 5   8.4      0.4        530        400        28.756
June
13 &     Site 1   7.8      0.7        570        2750        4.839
 14
         Site 2   7.1      0.5        430        450         2.243

         Site 3   7.9      -0.2       570        2100        7.455

         Site 4   7.7      0.0        550        1400       11.547
                                                14
         Site 5   7.8      0.1        1020       3950       41.139
Turbidit     Dissolved    Dissolved   5 Day    Nitrates Phosphate
                 y (JTU’s)   Oxygen (%      Oxygen     B.O.D.                s
                                                                 (ppm)
                             Saturation)    (ppm)                          (ppm)

          Site
May 31              20          65%           6.6       4.8     19.976     0.22
           1
          Site
                    30          41%           4.1       5.1     13.068     1.58
           2
          Site
                    30          79%           7.8       3.1     13.376     0.30
           3
          Site
                    20          74%           7.3       1.7      14.08     1.92
           4
          Site
                    40          79%           7.9       5.6     17.336     0.62
           5
June 13   Site
                    35          57%           5.7       0.8     19.976     0.85
 & 14      1
          Site
                    50          46%           4.4        0      12.892     0.65
           2
          Site
                    90          47%           4.4        0       8.492     0.70
           3
          Site
                    85          51%           4.9       0.7 15 9.218       0.52
           4
pH    Change in   Total     Fecal     Discharge
                           Water      Solids   Coliform     cubic
                           Temp.      mg/L     Col./100    ft./sec.
                           Degrees               mL
                           Celsius

July 14
           Site 1   7.8      1.3       580       350        2.75
 & 15
           Site 2   7.7      1.5       560          50      1.187
           Site 3   8.0     -0.1       560       400        5.568
           Site 4   7.9       0        600       350        6.65
           Site 5   8.1      1.2       870       600       12.028

August 5   Site 1   7.8       0        510       250        0.62

           Site 2   7.8     -1.3       550          50      0.36

           Site 3   7.1      0.6       250          100     2.66

           Site 4   8.2      0.6       300       350         1.1
                                               16
           Site 5   8.2      1.7       280       450        10.2
Turbidity   Dissolved Dissolved 5 Day   Nitrates Phosphates
                 JTU’s      Oxygen %   Oxygen B.O.D.               (mg/L)
                                                         (ppm)
                            Saturation  ppm

July
14 &   Site 1      10         75%       6.5     5.1          9.096   0.65
 15

       Site 2      5          33%       2.9     0.6      10.208      0.41

       Site 3      15         45%       3.7     1.7          7.788   0.26

       Site 4     135         38%       3.1      0           3.564   1.17

       Site 5     150         46%       3.8     4.5          4.84    0.23

August
       Site 1      10         85%       7.7     4.3      13.068      0.29
  5

       Site 2      5          57%       5.3     0.6          2.28     0

       Site 3      20         60%       5.2     4.3           0      0.06

       Site 4      20         55%       4.8     3.4          0.088   0.16
                                                        17
       Site 5      30         38%       3.3     2.8      10.208      0.3
May 31 Site 1
               Test Results    Q-Value   Weighting Factor   Total

D.O.           % Sat.            62           0.17          10.54
Fecal
Coliform
               Col./100mL        23           0.16          3.68
pH             Units             82           0.11          9.02
B.O.D.         Mg/L              56           0.11          6.16
Temp.          Change in o C     93           0.10           9.3
Phosphates     Mg/L              92           0.10           9.2
Nitrates       Mg/L              38           0.10           3.8
Turbidity      JTU               61           0.08          4.88
Total Solids   Mg/L              20           0.07           1.4
            Overall Water Quality Index      57.98 18
                                                   (medium)
May 31 Site 2
               Test Results    Q-Value   Weighting Factor    Total
D.O.           % Sat.            31           0.17           5.27
Fecal
Coliform
               Col./100mL        33           0.16           5.28
pH             Units             86           0.11           9.46
B.O.D.         Mg/L              54           0.11           5.94
Temp.          Change in o C     92           0.10            9.2
Phosphates     Mg/L              31           0.10            3.1
Nitrates       Mg/L              47           0.10            4.7
Turbidity      JTU               52           0.08           4.16
Total Solids   Mg/L              20           0.07            1.4
            Overall Water Quality Index        48.51 (bad)
                                                   19
May 31 Site 3
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            86           0.17          14.62
Fecal
Coliform
               Col./100mL        24           0.16          3.84
pH             Units             82           0.11          9.02
B.O.D.         Mg/L              65           0.11          7.15
Temp.          Change in o C     93           0.10           9.3
Phosphates     Mg/L              89           0.10           8.9
Nitrates       Mg/L              45           0.10           4.5
Turbidity      JTU               52           0.08          4.16
Total Solids   Mg/L              37           0.07          2.59
            Overall Water Quality Index       64.08 (medium)
                                                  20
May 31 Site 4
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            82           0.17          13.94
Fecal
Coliform
               Col./100mL        22           0.16          3.52
pH             Units             82           0.11          9.02
B.O.D.         Mg/L              88           0.11          9.68
Temp.          Change in o C     92           0.10           9.2
Phosphates     Mg/L              27           0.10           2.7
Nitrates       Mg/L              43           0.10           4.3
Turbidity      JTU               61           0.08          4.88
Total Solids   Mg/L              40           0.07           2.8
            Overall Water Quality Index       60.0421
                                                    (medium)
May 31 Site 5
               Test Results    Q-Value   Weighting Factor   Total

D.O.           % Sat.            86           0.17          14.62
Fecal
Coliform
               Col./100mL        27           0.16          4.32
pH             Units             65           0.11          7.15
B.O.D.         Mg/L              50           0.11           5.5
Temp.          Change in o C     93           0.10           9.3
Phosphates     Mg/L              51           0.10           5.1
Nitrates       Mg/L              40           0.10            4
Turbidity      JTU               45           0.08           3.6
Total Solids   Mg/L              20           0.07           1.4
            Overall Water Quality Index        54.99 (medium)
                                                   22
June 13 & 14 Site 1
                Test Results   Q-Value   Weighting Factor   Total

D.O.           % Sat.            54           0.17          9.18
Fecal
Coliform
               Col./100mL        16           0.16          2.56
pH             Units             90           0.11           9.9
B.O.D.         Mg/L              96           0.11          10.56
Temp.          Change in o C     91           0.10           9.1
Phosphates     Mg/L              43           0.10           4.3
Nitrates       Mg/L              38           0.10           3.8
Turbidity      JTU               49           0.08          3.92
Total Solids   Mg/L              20           0.07           1.4
                                                     23
            Overall Water Quality Index       54.72 (medium)
June 13 & 14 Site 2
                Test Results   Q-Value   Weighting Factor   Total
D.O.           % Sat.            36           0.17          6.12
Fecal
Coliform
               Col./100mL        27           0.16          4.32
pH             Units             90           0.11            9.9
B.O.D.         Mg/L              97           0.11          10.67
Temp.          Change in o C     92           0.10            9.2
Phosphates     Mg/L              51           0.10            5.1
Nitrates       Mg/L              48           0.10            4.8
Turbidity      JTU               39           0.08           3.12
Total Solids   Mg/L              42           0.07           2.94
            Overall Water Quality Index       56.1724
                                                    (medium)
June 13 & 14 Site 3
                Test Results   Q-Value   Weighting Factor   Total
D.O.           % Sat.            37           0.17          6.29
Fecal
Coliform
               Col./100mL        18           0.16          2.88
pH             Units             84           0.11           9.24
B.O.D.         Mg/L              97           0.11          10.67
Temp.          Change in o C     92           0.10            9.2
Phosphates     Mg/L              51           0.10            5.1
Nitrates       Mg/L              54           0.10            5.4
Turbidity      JTU               21           0.08           1.68
Total Solids   Mg/L              20           0.07            1.4
            Overall Water Quality Index       51.8625
                                                    (medium)
June 13 & 14 Site 4
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            45           0.17          7.65
Fecal
Coliform
               Col./100mL        20           0.16           3.2
pH             Units             91           0.11          10.01
B.O.D.         Mg/L              96           0.11          10.56
Temp.          Change in o C     93           0.10            9.3
Phosphates     Mg/L              60           0.10            6.0
Nitrates       Mg/L              51           0.10            5.1
Turbidity      JTU               23           0.08           1.84
Total Solids   Mg/L              20           0.07            1.4
            Overall Water Quality Index        55.06 (medium)
                                                   26
June 13 & 14 Site 5
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            14           0.17          2.38
Fecal
Coliform
               Col./100mL        14           0.16          2.24
pH             Units             90           0.11           9.9
B.O.D.         Mg/L              97           0.11          10.67
Temp.          Change in o C     92           0.10           9.2
Phosphates     Mg/L              40           0.10           4.0
Nitrates       Mg/L              61           0.10           6.1
Turbidity      JTU                5           0.08           0.4
Total Solids   Mg/L              20           0.07           1.4
            Overall Water Quality Index         46.29 (bad)
                                                   27
July 14 & 15 Site 1
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            84           0.17          14.28
Fecal
Coliform
               Col./100mL        35           0.16           5.6
pH             Units             90           0.11           9.9
B.O.D.         Mg/L              52           0.11          5.72
Temp.          Change in o C     90           0.10           9.0
Phosphates     Mg/L              51           0.10           5.1
Nitrates       Mg/L              52           0.10           5.2
Turbidity      JTU               77           0.08          6.16
Total Solids   Mg/L              20           0.07           1.4
            Overall Water Quality Index        62.36 (medium)
                                                   28
July 14 & 15 Site 2
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            21           0.17          3.57
Fecal
Coliform
               Col./100mL        53           0.16          8.48
pH             Units             90           0.11           9.9
B.O.D.         Mg/L              95           0.11          10.45
Temp.          Change in o C     89           0.10           8.9
Phosphates     Mg/L              62           0.10           6.2
Nitrates       Mg/L              50           0.10           5.0
Turbidity      JTU               85           0.08           6.8
Total Solids   Mg/L              20           0.07           1.4
            Overall Water Quality Index        60.70(medium)
                                                   29
July 14 & 15 Site 3
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            32           0.17          5.44
Fecal
Coliform
               Col./100mL        28           0.16          4.48
pH             Units             82           0.11           9.02
B.O.D.         Mg/L              91           0.11          10.01
Temp.          Change in o C     91           0.10            9.1
Phosphates     Mg/L              82           0.10            8.2
Nitrates       Mg/L              53           0.10            5.3
Turbidity      JTU               66           0.08           5.28
Total Solids   Mg/L              20           0.07            1.4
            Overall Water Quality Index        58.23 (medium)
                                                   30
July 14 & 15 Site 4
                 Test Results   Q-Value   Weighting Factor   Total
D.O.            % Sat.            29           0.17          4.93
Fecal
Coliform
                Col./100mL        35           0.16           5.6
pH              Units             85           0.11           9.35
B.O.D.          Mg/L              98           0.11          10.78
Temp.           Change in o C     92           0.10            9.2
Phosphates      Mg/L              37           0.10            3.7
Nitrates        Mg/L              93           0.10            9.3
Turbidity       JTU                5           0.08            0.4
Total Solids    Mg/L              20           0.07            1.4
               Overall Water Quality Index        54.66 (medium)
                                                    31
July 14 & 15 Site 5
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            33           0.17          5.61
Fecal
Coliform
               Col./100mL        27           0.16          4.32
pH             Units             80           0.11           8.8
B.O.D.         Mg/L              58           0.11          6.38
Temp.          Change in o C     91           0.10           9.1
Phosphates     Mg/L              84           0.10           8.4
Nitrates       Mg/L              90           0.10           9.0
Turbidity      JTU                5           0.08           0.4
Total Solids   Mg/L              20           0.07           1.4
            Overall Water Quality Index         53.41(medium)
                                                  32
August 5 Site 1
                Test Results    Q-Value   Weighting Factor   Total
D.O.            % Sat.            90           0.17          15.30
Fecal
Coliform
                Col./100mL        30           0.16           4.8
pH              Units             90           0.11           9.9
B.O.D.          Mg/L              59           0.11          6.49
Temp.           Change in o C     93           0.10           9.3
Phosphates      Mg/L              90           0.10           9.0
Nitrates        Mg/L              46           0.10           4.6
Turbidity       JTU               76           0.08          6.08
Total Solids    Mg/L              20           0.07           1.4
                                                    33
               Overall Water Quality Index        66.87 (meduim)
August 5 Site 2
                Test Results   Q-Value   Weighting Factor   Total
D.O.           % Sat.            52           0.17          8.84
Fecal
Coliform
               Col./100mL        53           0.16          8.48
pH             Units             90           0.11            9.9
B.O.D.         Mg/L              93           0.11          10.23
Temp.          Change in o C     90           0.10            9.0
Phosphates     Mg/L             100           0.10           10.0
Nitrates       Mg/L              97           0.10            9.7
Turbidity      JTU               85           0.08            6.8
Total Solids   Mg/L              20           0.07            1.4
                                                   34
               Overall Water Quality Index        74.35 (good)
August 5 Site 3
                Test Results   Q-Value   Weighting Factor   Total
D.O.           % Sat.            58           0.17          9.86
Fecal
Coliform
               Col./100mL        44           0.16          7.04
pH             Units             90           0.11           9.9
B.O.D.         Mg/L              59           0.11          6.49
Temp.          Change in o C     91           0.10           9.1
Phosphates     Mg/L              97           0.10           9.7
Nitrates       Mg/L              98           0.10           9.8
Turbidity      JTU               62           0.08          4.96
Total Solids   Mg/L              66           0.07          4.62
                                                   35
               Overall Water Quality Index        71.47 (good)
August 5 Site 4
               Test Results    Q-Value   Weighting Factor    Total
D.O.           % Sat.            50           0.17           8.5
Fecal
Coliform
               Col./100mL        29           0.16           4.64
pH             Units             77           0.11           8.47
B.O.D.         Mg/L              65           0.11           7.15
Temp.          Change in o C     91           0.10            9.1
Phosphates     Mg/L              94           0.10            9.4
Nitrates       Mg/L              98           0.10            9.8
Turbidity      JTU               62           0.08           4.96
Total Solids   Mg/L              59           0.07           4.13
                                                   36
               Overall Water Quality Index           66.15
August 5 Site 5
               Test Results    Q-Value   Weighting Factor   Total
D.O.           % Sat.            27           0.17          4.59
Fecal
Coliform
               Col./100mL        27           0.16          4.32
pH             Units             77           0.11          8.47
B.O.D.         Mg/L              68           0.11          7.48
Temp.          Change in o C     90           0.10           9.0
Phosphates     Mg/L              85           0.10           8.5
Nitrates       Mg/L              50           0.10           5.0
Turbidity      JTU               53           0.08          4.24
Total Solids   Mg/L              62           0.07          4.34
            Overall Water Quality Index        55.94 (medium)
                                                   37
2005 Precipitation

         7
         6
         5
Inches




         4
         3
         2
         1
         0
             May        June       July   August

                        Rainfall


                                          38
pH

           8.5
            8
pH Level




           7.5                                         Site 1
            7                                          Site 2
           6.5                                         Site 3
                                                       Site 4
            6
                                                       Site 5
                 May 31    June July 14   Aug 5
                          13 & 14 & 15
                              Date
                                                  39
Change in Temperature

                                2

                              1.5
Change (in degrees celsius)




                                1
                                                                               Site 1
                              0.5                                              Site 2
                                                                               Site 3
                                0                                              Site 4
                                                                               Site 5
                              -0.5

                               -1

                              -1.5
                                     May 31    June 13   July 14      August
                                                & 14 Date & 15          5
                                                                       40
Total Solids

       1200
       1000
        800
                                               Site 1
mg/L




        600
        400                                    Site 2
        200
                                               Site 3
          0
              May 31 June July 14 Aug 5        Site 4
                     13 &  & 15                Site 5
                      14
                       Dates

                                          41
Fecal Coliform

                    5000
Colonies / 100 mL


                    4000
                    3000
                                                          Site 1
                    2000
                                                          Site 2
                    1000
                                                          Site 3
                       0
                                                          Site 4
                           May   June   July Aug 5
                           31    13 &   14 &              Site 5
                                  14     15
                                   Dates
                                                     42
Fecal Coliform




                 43
Flow

                      50
                                                                 Site 1
Cubic Feet / Second




                      40
                                                                 Site 2
                      30
                                                                 Site 3
                      20
                                                                 Site 4
                      10
                                                                 Site 5
                      0
                           May 31 June 13 July 14   Aug 5
                                   & 14    & 15
                                       Dates
                                                            44
Turbidity

        250
        200
        150                                         Site 1
JTU's




        100                                         Site 2
         50                                         Site 3
          0                                         Site 4
              May 31   June 13 July 14 &   Aug 5    Site 5
                         & 14     15
                            Dates

                                               45
Dissolved Oxygen

      10
       8
       6                                         Site 1
ppm




       4                                         Site 2
       2                                         Site 3
       0
                                                 Site 4
           May 31   June 13 July 14 &   Aug 5
                                                 Site 5
                      & 14     15
                          Date

                                            46
Dissolved Oxygen

                     100
Percent Saturation



                      80
                      60                                         Site 1
                     40                                          Site 2
                     20                                          Site 3
                      0                                          Site 4
                           May 31    June July 14   Aug 5
                                                                 Site 5
                                    13&14 & 15
                                       Dates


                                                            47
5 Day Biological Oxygen Demand

      6
      5
      4
ppm




      3                                         Site 1
      2
      1                                         Site 2
      0                                         Site 3
           May 31   June   July 14 Aug 5        Site 4
                    13 &    & 15
                     14                         Site 5

                       Date


                                           48
Nitrates

      25
      20
      15                                               Site 1
ppm




      10                                               Site 2
       5                                               Site 3
       0                                               Site 4
           May 31   June 13 & July 14 &   Aug 5        Site 5
                       14        15
                           Date

                                                  49
Phosphates

      2.5
        2
      1.5                                       Site 1
ppm




        1                                       Site 2
      0.5                                       Site 3
        0                                       Site 4
            May 31 June 13 July 14 Aug 5
                    & 14    & 15                Site 5

                       Date

                                           50
Chemical Test Conclusion
• All W.Q.I. numbers were within the medium range,
  except:
       - August 5-Sites 2 and 3 (Good)
       - May 31- Site 2 (Bad)
       - June 13 and 14-Site 5 (Bad)
• Best overall date: August 5
• Best overall site: Site 3
• Consistent pH readings
• Dissolved oxygen was consistently low over the summer
• Turbidity decreased over the summer
• Very high nitrate readings, but did decrease over the
  summer
• High precipitation amounts in June affected testing
  because of increase in runoff              51
WQI Averages by Site
Site 1                   60.48
Site 2                   59.93
Site 3                   61.41
Site 4                   58.98
Site 5                   52.66
         WQI Averages by Date
May 31                   57.12
June 13 & 14             52.82
July 14 & 15             57.87
August 5                 66.96   52
WQI Averages by Site

70

60

50

40
                                                         2003 Averages
30                                                       2004 Averages
                                                         2005 Averages
20

10

 0
     Site 1   Site 2     Site 3   Site 4   Site 5
                         Site
                                                    53
WQI Averages by Date

80

70

60

50
                                               2003 Averages
40                                             2004 Averages
                                               2005 Averages
30

20

10

 0
     May   June           July   August
                  Month                   54
2003 to 2005 Chemical Test Average
                         Comparisons

12

10

8

6                                                                 2003 Averages
                                                                  2004 Averages
4
                                                                  2005 Averages
2

0
              pH




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                    ita




                                                        Te
                                ph
    ch




                                          B
                   N




                              os
  is




                                                    in
 D




                             Ph




                                                    e
                                                  ng
                                                ha

                       Chemical Test
                                               C



                                                             55
2003 to 2005 Chemical Test Average Comparisons


1200

1000

800

                                                                  2003 Averages
600
                                                                  2004 Averages
400                                                               2005 Averages


200

  0
        D.O. % Sat.   Turbidity   Fecal Coliform   Total Solids
                                                             56
                          Chemical Test
Macro Invertebrates

Sensitive         Somewhat Sensitive        Tolerant




                                       57
Sample Bio-Indicator Data Form




                      58
Bio-Indicator Comparison Chart
           2002, 2004 and 2005
20
18
16
14
12
                                                       Summer 2002
10
                                                       Summer 2004
8
                                                       Summer 2005
6
4
2
0
     Site 1   Site 2   Site 3   Site 4   Site 5
                                                  59
Bio-Indicator Ratings
          20
                                                 si te 1
          15                                     si te 2
                                                 si te 3
 atings




          10                                     si te 4
                                                 si te 5
R




           5

           0
               M
               ay   Jn e
                     u            Jl y
                                   u     Agu
                                          u st
                           M th
                           on


                                           60
Bio-Indicators Test Conclusions
• Diversity decreased over the summer
• Best overall date: May 31
• Best overall site: Site 3 (same as last year)
• Diversity slightly declined compared to last
  year
• Bio-Indicator scale ranked the Shell Creek
  slightly below the W.Q.I. rankings
     – Bio-Indicators-poor to fair
     – W.Q.I.-medium to good         61
Algae at Site 1
          62
Using the
Equipment




            63
Bio-
Indicators




             64
Lab Work




    65
Look!...There’s a frog,, Cody!...Get it!

                                     66
Oops!...I dropped the bottle!




                                67
Mr. Seier
at Site 3



            68
Flood Study




              69
100                 Width of Shell Creek
        90


        80


        70


        60
Feet




        50


        40


        30


        20


        10


         0
             6/3 6:00 PM   6/4 5:45 PM   6/10 9:40 AM   6/11 8:00 AM   6/11 12:00 PM   6/11 7:00 PM   6/21 6:00 PM
                                                                                       70
600
                                                          Flow Rates
                        500




                        400
Cubic Feet per Second




                        300




                        200




                        100




                          0
                              6/3 6:00 PM   6/4 5:45 PM   6/10 9:40 AM   6/11 8:00 AM   6/11 12:00 PM
                                                                                                        71 7:00 PM
                                                                                                         6/11        6/21 6:00 PM
40000
                                                  Fecal Coliform
                                                                                                                  483 cfs

                      30000



                                                                          160
Colonies per 100 mL




                                                                          cfs
                      20000
                                                                                         475
                                                                                         cfs            248 cfs
                                                            130
                      10000                 508 cfs         cfs


                              96 cfs

                          0
                              6/3 6:00 PM   6/4 5:45 PM   6/10 9:40 AM   6/11 8:00 AM
                                                                                                    72 7:00 PM
                                                                                        6/11 12:00 PM6/11         6/21 6:00 PM
25
                                                           Nitrates
                          96 cfs
                    20




                    15
                                       508 cfs
Parts per Million




                    10

                                                                                                                  483 cfs

                     5
                                                                                     475
                                                      130             160            cfs           248 cfs
                                                      cfs             cfs
                     0
                         6/3 6:00 PM   6/4 5:45 PM   6/10 9:40 AM   6/11 8:00 AM   6/11 12:00 PM   6/11 7:00 PM   6/21 6:00 PM
                                                                                                   73
1200                               Total Solids
                                     508 cfs
                1000




                 800
                                                                                 475
                                                                                 cfs
Tons per Hour




                 600




                 400


                                                                    160
                 200                                                cfs                          248 cfs        483 cfs
                        96 cfs                       130
                                                     cfs
                   0
                       6/3 6:00 PM   6/4 5:45 PM   6/10 9:40 AM   6/11 8:00 AM   6/11 12:00 PM   74
                                                                                                 6/11 7:00 PM   6/21 6:00 PM
75
HE THE THE THE THE THE THE THE THE THE THE THE THE THE THE THE TH
HE THE T




                                              76
END END END END END END END END END END END END END END END
Thank You To:
 • Lower Platte North Natural Resource
                 District

         • PrairieLand RC&D

• Natural Resource Conservation Service

• Nebraska Department of Environmental
                Quality
                              77
 • Shell Creek Watershed Improvement
Website
• http://newman.esu8.org/project.html
                 OR
      • http://newman.esu8.org/
         • Click “Our Students”
       • Click “Student Projects”
     • Click “Watershed Project”
 • You can see our data and further
  information concerning this project,
            including pictures. 78

NG Shell Creek Data Powerpoint 2005

  • 1.
  • 2.
    Shell Creek andLoseke-Taylor Creek Watersheds (with Township-Range Labels) Lower Platte North Natural Resources District 2
  • 3.
  • 4.
  • 5.
  • 6.
  • 7.
  • 8.
    W.Q.I. • The WaterQuality Index was developed by the National Sanitation Foundation as a standard system to compare different bodies of water. • To determine the WQI, a series of nine tests were performed. These tests were: dissolved oxygen, fecal coliform, pH, Biological Oxygen Demand (BOD), temperature, total phosphate, nitrates, turbidity, and total solids. We also did a water discharge test which we use to measure the flow of the creek in cubic feet per second. 8
  • 9.
    • After thetests are completed, the WQI for each section of the creek can be computed. • To formulate the WQI, we first computed Q- values. • We multiply this number by a weighting factor, which provides a measure of the relative importance of each test to overall water quality. • The water quality index ranges from zero to 100. - 0 - 25 is very bad - 25 - 50 is bad - 50 - 70 is medium - 70 - 90 is good - 90 - 100 is excellent • The bio-indicator tests weren’t part of W.Q.I., but 9 did give us a water quality rating.
  • 10.
  • 11.
    Sample W.Q.I. Form Weighting T o t a l Test Results Q-value Factor DO % sat. 0.17 Fecal Coliform col/100 mL 0.16 pH units 0.11 BOD mg/L 0.11 Temperature change in C 0.1 Total Phosphate mg/L 0.1 Nitrates mg/L 0.1 Turbidity JTU 0.08 Total Solids mg/L 0.07 Overall Water Quality Index ___ 11
  • 12.
    Test Natural Readings Cautionary Readings Dissolved Oxygen % 90% or higher Below 90% unless the waters are Saturation supersaturated due to cultural eutrophication. pH 6.5-8.5 Below 6.5 Above 8.5 Nitrates 0.0-1.0 ppm Consistent readings above 3.5 ppm Change in The higher the change, the worse the water Temperature quality. Turbidity 0-8 JTU’s Increasing trends in turbidity measurements. 12
  • 13.
    Test Natural Readings Cautionary Readings 5 Day B.O.D The higher the difference between the original and the 5 day reading, the worse the water. Phosphates Less than 1 mg/L More than 1 mg/L Total Solids The higher the concentration, the worse the water. Fecal Coliform Over 200 colonies/100 mL of water 13
  • 14.
    pH Change in Total Fecal Discharge Water Solids Coliform (cubic Temp. (mg/L) (Col./100 ft./sec.) (Degrees mL) Celsius) May 31 Site 1 8.0 0.6 540 900 2.503 Site 2 7.8 -0.1 530 300 1.115 Site 3 8.0 0.2 470 800 7.93 Site 4 8.0 -0.1 450 1100 6.306 Site 5 8.4 0.4 530 400 28.756 June 13 & Site 1 7.8 0.7 570 2750 4.839 14 Site 2 7.1 0.5 430 450 2.243 Site 3 7.9 -0.2 570 2100 7.455 Site 4 7.7 0.0 550 1400 11.547 14 Site 5 7.8 0.1 1020 3950 41.139
  • 15.
    Turbidit Dissolved Dissolved 5 Day Nitrates Phosphate y (JTU’s) Oxygen (% Oxygen B.O.D. s (ppm) Saturation) (ppm) (ppm) Site May 31 20 65% 6.6 4.8 19.976 0.22 1 Site 30 41% 4.1 5.1 13.068 1.58 2 Site 30 79% 7.8 3.1 13.376 0.30 3 Site 20 74% 7.3 1.7 14.08 1.92 4 Site 40 79% 7.9 5.6 17.336 0.62 5 June 13 Site 35 57% 5.7 0.8 19.976 0.85 & 14 1 Site 50 46% 4.4 0 12.892 0.65 2 Site 90 47% 4.4 0 8.492 0.70 3 Site 85 51% 4.9 0.7 15 9.218 0.52 4
  • 16.
    pH Change in Total Fecal Discharge Water Solids Coliform cubic Temp. mg/L Col./100 ft./sec. Degrees mL Celsius July 14 Site 1 7.8 1.3 580 350 2.75 & 15 Site 2 7.7 1.5 560 50 1.187 Site 3 8.0 -0.1 560 400 5.568 Site 4 7.9 0 600 350 6.65 Site 5 8.1 1.2 870 600 12.028 August 5 Site 1 7.8 0 510 250 0.62 Site 2 7.8 -1.3 550 50 0.36 Site 3 7.1 0.6 250 100 2.66 Site 4 8.2 0.6 300 350 1.1 16 Site 5 8.2 1.7 280 450 10.2
  • 17.
    Turbidity Dissolved Dissolved 5 Day Nitrates Phosphates JTU’s Oxygen % Oxygen B.O.D. (mg/L) (ppm) Saturation ppm July 14 & Site 1 10 75% 6.5 5.1 9.096 0.65 15 Site 2 5 33% 2.9 0.6 10.208 0.41 Site 3 15 45% 3.7 1.7 7.788 0.26 Site 4 135 38% 3.1 0 3.564 1.17 Site 5 150 46% 3.8 4.5 4.84 0.23 August Site 1 10 85% 7.7 4.3 13.068 0.29 5 Site 2 5 57% 5.3 0.6 2.28 0 Site 3 20 60% 5.2 4.3 0 0.06 Site 4 20 55% 4.8 3.4 0.088 0.16 17 Site 5 30 38% 3.3 2.8 10.208 0.3
  • 18.
    May 31 Site1 Test Results Q-Value Weighting Factor Total D.O. % Sat. 62 0.17 10.54 Fecal Coliform Col./100mL 23 0.16 3.68 pH Units 82 0.11 9.02 B.O.D. Mg/L 56 0.11 6.16 Temp. Change in o C 93 0.10 9.3 Phosphates Mg/L 92 0.10 9.2 Nitrates Mg/L 38 0.10 3.8 Turbidity JTU 61 0.08 4.88 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 57.98 18 (medium)
  • 19.
    May 31 Site2 Test Results Q-Value Weighting Factor Total D.O. % Sat. 31 0.17 5.27 Fecal Coliform Col./100mL 33 0.16 5.28 pH Units 86 0.11 9.46 B.O.D. Mg/L 54 0.11 5.94 Temp. Change in o C 92 0.10 9.2 Phosphates Mg/L 31 0.10 3.1 Nitrates Mg/L 47 0.10 4.7 Turbidity JTU 52 0.08 4.16 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 48.51 (bad) 19
  • 20.
    May 31 Site3 Test Results Q-Value Weighting Factor Total D.O. % Sat. 86 0.17 14.62 Fecal Coliform Col./100mL 24 0.16 3.84 pH Units 82 0.11 9.02 B.O.D. Mg/L 65 0.11 7.15 Temp. Change in o C 93 0.10 9.3 Phosphates Mg/L 89 0.10 8.9 Nitrates Mg/L 45 0.10 4.5 Turbidity JTU 52 0.08 4.16 Total Solids Mg/L 37 0.07 2.59 Overall Water Quality Index 64.08 (medium) 20
  • 21.
    May 31 Site4 Test Results Q-Value Weighting Factor Total D.O. % Sat. 82 0.17 13.94 Fecal Coliform Col./100mL 22 0.16 3.52 pH Units 82 0.11 9.02 B.O.D. Mg/L 88 0.11 9.68 Temp. Change in o C 92 0.10 9.2 Phosphates Mg/L 27 0.10 2.7 Nitrates Mg/L 43 0.10 4.3 Turbidity JTU 61 0.08 4.88 Total Solids Mg/L 40 0.07 2.8 Overall Water Quality Index 60.0421 (medium)
  • 22.
    May 31 Site5 Test Results Q-Value Weighting Factor Total D.O. % Sat. 86 0.17 14.62 Fecal Coliform Col./100mL 27 0.16 4.32 pH Units 65 0.11 7.15 B.O.D. Mg/L 50 0.11 5.5 Temp. Change in o C 93 0.10 9.3 Phosphates Mg/L 51 0.10 5.1 Nitrates Mg/L 40 0.10 4 Turbidity JTU 45 0.08 3.6 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 54.99 (medium) 22
  • 23.
    June 13 &14 Site 1 Test Results Q-Value Weighting Factor Total D.O. % Sat. 54 0.17 9.18 Fecal Coliform Col./100mL 16 0.16 2.56 pH Units 90 0.11 9.9 B.O.D. Mg/L 96 0.11 10.56 Temp. Change in o C 91 0.10 9.1 Phosphates Mg/L 43 0.10 4.3 Nitrates Mg/L 38 0.10 3.8 Turbidity JTU 49 0.08 3.92 Total Solids Mg/L 20 0.07 1.4 23 Overall Water Quality Index 54.72 (medium)
  • 24.
    June 13 &14 Site 2 Test Results Q-Value Weighting Factor Total D.O. % Sat. 36 0.17 6.12 Fecal Coliform Col./100mL 27 0.16 4.32 pH Units 90 0.11 9.9 B.O.D. Mg/L 97 0.11 10.67 Temp. Change in o C 92 0.10 9.2 Phosphates Mg/L 51 0.10 5.1 Nitrates Mg/L 48 0.10 4.8 Turbidity JTU 39 0.08 3.12 Total Solids Mg/L 42 0.07 2.94 Overall Water Quality Index 56.1724 (medium)
  • 25.
    June 13 &14 Site 3 Test Results Q-Value Weighting Factor Total D.O. % Sat. 37 0.17 6.29 Fecal Coliform Col./100mL 18 0.16 2.88 pH Units 84 0.11 9.24 B.O.D. Mg/L 97 0.11 10.67 Temp. Change in o C 92 0.10 9.2 Phosphates Mg/L 51 0.10 5.1 Nitrates Mg/L 54 0.10 5.4 Turbidity JTU 21 0.08 1.68 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 51.8625 (medium)
  • 26.
    June 13 &14 Site 4 Test Results Q-Value Weighting Factor Total D.O. % Sat. 45 0.17 7.65 Fecal Coliform Col./100mL 20 0.16 3.2 pH Units 91 0.11 10.01 B.O.D. Mg/L 96 0.11 10.56 Temp. Change in o C 93 0.10 9.3 Phosphates Mg/L 60 0.10 6.0 Nitrates Mg/L 51 0.10 5.1 Turbidity JTU 23 0.08 1.84 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 55.06 (medium) 26
  • 27.
    June 13 &14 Site 5 Test Results Q-Value Weighting Factor Total D.O. % Sat. 14 0.17 2.38 Fecal Coliform Col./100mL 14 0.16 2.24 pH Units 90 0.11 9.9 B.O.D. Mg/L 97 0.11 10.67 Temp. Change in o C 92 0.10 9.2 Phosphates Mg/L 40 0.10 4.0 Nitrates Mg/L 61 0.10 6.1 Turbidity JTU 5 0.08 0.4 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 46.29 (bad) 27
  • 28.
    July 14 &15 Site 1 Test Results Q-Value Weighting Factor Total D.O. % Sat. 84 0.17 14.28 Fecal Coliform Col./100mL 35 0.16 5.6 pH Units 90 0.11 9.9 B.O.D. Mg/L 52 0.11 5.72 Temp. Change in o C 90 0.10 9.0 Phosphates Mg/L 51 0.10 5.1 Nitrates Mg/L 52 0.10 5.2 Turbidity JTU 77 0.08 6.16 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 62.36 (medium) 28
  • 29.
    July 14 &15 Site 2 Test Results Q-Value Weighting Factor Total D.O. % Sat. 21 0.17 3.57 Fecal Coliform Col./100mL 53 0.16 8.48 pH Units 90 0.11 9.9 B.O.D. Mg/L 95 0.11 10.45 Temp. Change in o C 89 0.10 8.9 Phosphates Mg/L 62 0.10 6.2 Nitrates Mg/L 50 0.10 5.0 Turbidity JTU 85 0.08 6.8 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 60.70(medium) 29
  • 30.
    July 14 &15 Site 3 Test Results Q-Value Weighting Factor Total D.O. % Sat. 32 0.17 5.44 Fecal Coliform Col./100mL 28 0.16 4.48 pH Units 82 0.11 9.02 B.O.D. Mg/L 91 0.11 10.01 Temp. Change in o C 91 0.10 9.1 Phosphates Mg/L 82 0.10 8.2 Nitrates Mg/L 53 0.10 5.3 Turbidity JTU 66 0.08 5.28 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 58.23 (medium) 30
  • 31.
    July 14 &15 Site 4 Test Results Q-Value Weighting Factor Total D.O. % Sat. 29 0.17 4.93 Fecal Coliform Col./100mL 35 0.16 5.6 pH Units 85 0.11 9.35 B.O.D. Mg/L 98 0.11 10.78 Temp. Change in o C 92 0.10 9.2 Phosphates Mg/L 37 0.10 3.7 Nitrates Mg/L 93 0.10 9.3 Turbidity JTU 5 0.08 0.4 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 54.66 (medium) 31
  • 32.
    July 14 &15 Site 5 Test Results Q-Value Weighting Factor Total D.O. % Sat. 33 0.17 5.61 Fecal Coliform Col./100mL 27 0.16 4.32 pH Units 80 0.11 8.8 B.O.D. Mg/L 58 0.11 6.38 Temp. Change in o C 91 0.10 9.1 Phosphates Mg/L 84 0.10 8.4 Nitrates Mg/L 90 0.10 9.0 Turbidity JTU 5 0.08 0.4 Total Solids Mg/L 20 0.07 1.4 Overall Water Quality Index 53.41(medium) 32
  • 33.
    August 5 Site1 Test Results Q-Value Weighting Factor Total D.O. % Sat. 90 0.17 15.30 Fecal Coliform Col./100mL 30 0.16 4.8 pH Units 90 0.11 9.9 B.O.D. Mg/L 59 0.11 6.49 Temp. Change in o C 93 0.10 9.3 Phosphates Mg/L 90 0.10 9.0 Nitrates Mg/L 46 0.10 4.6 Turbidity JTU 76 0.08 6.08 Total Solids Mg/L 20 0.07 1.4 33 Overall Water Quality Index 66.87 (meduim)
  • 34.
    August 5 Site2 Test Results Q-Value Weighting Factor Total D.O. % Sat. 52 0.17 8.84 Fecal Coliform Col./100mL 53 0.16 8.48 pH Units 90 0.11 9.9 B.O.D. Mg/L 93 0.11 10.23 Temp. Change in o C 90 0.10 9.0 Phosphates Mg/L 100 0.10 10.0 Nitrates Mg/L 97 0.10 9.7 Turbidity JTU 85 0.08 6.8 Total Solids Mg/L 20 0.07 1.4 34 Overall Water Quality Index 74.35 (good)
  • 35.
    August 5 Site3 Test Results Q-Value Weighting Factor Total D.O. % Sat. 58 0.17 9.86 Fecal Coliform Col./100mL 44 0.16 7.04 pH Units 90 0.11 9.9 B.O.D. Mg/L 59 0.11 6.49 Temp. Change in o C 91 0.10 9.1 Phosphates Mg/L 97 0.10 9.7 Nitrates Mg/L 98 0.10 9.8 Turbidity JTU 62 0.08 4.96 Total Solids Mg/L 66 0.07 4.62 35 Overall Water Quality Index 71.47 (good)
  • 36.
    August 5 Site4 Test Results Q-Value Weighting Factor Total D.O. % Sat. 50 0.17 8.5 Fecal Coliform Col./100mL 29 0.16 4.64 pH Units 77 0.11 8.47 B.O.D. Mg/L 65 0.11 7.15 Temp. Change in o C 91 0.10 9.1 Phosphates Mg/L 94 0.10 9.4 Nitrates Mg/L 98 0.10 9.8 Turbidity JTU 62 0.08 4.96 Total Solids Mg/L 59 0.07 4.13 36 Overall Water Quality Index 66.15
  • 37.
    August 5 Site5 Test Results Q-Value Weighting Factor Total D.O. % Sat. 27 0.17 4.59 Fecal Coliform Col./100mL 27 0.16 4.32 pH Units 77 0.11 8.47 B.O.D. Mg/L 68 0.11 7.48 Temp. Change in o C 90 0.10 9.0 Phosphates Mg/L 85 0.10 8.5 Nitrates Mg/L 50 0.10 5.0 Turbidity JTU 53 0.08 4.24 Total Solids Mg/L 62 0.07 4.34 Overall Water Quality Index 55.94 (medium) 37
  • 38.
    2005 Precipitation 7 6 5 Inches 4 3 2 1 0 May June July August Rainfall 38
  • 39.
    pH 8.5 8 pH Level 7.5 Site 1 7 Site 2 6.5 Site 3 Site 4 6 Site 5 May 31 June July 14 Aug 5 13 & 14 & 15 Date 39
  • 40.
    Change in Temperature 2 1.5 Change (in degrees celsius) 1 Site 1 0.5 Site 2 Site 3 0 Site 4 Site 5 -0.5 -1 -1.5 May 31 June 13 July 14 August & 14 Date & 15 5 40
  • 41.
    Total Solids 1200 1000 800 Site 1 mg/L 600 400 Site 2 200 Site 3 0 May 31 June July 14 Aug 5 Site 4 13 & & 15 Site 5 14 Dates 41
  • 42.
    Fecal Coliform 5000 Colonies / 100 mL 4000 3000 Site 1 2000 Site 2 1000 Site 3 0 Site 4 May June July Aug 5 31 13 & 14 & Site 5 14 15 Dates 42
  • 43.
  • 44.
    Flow 50 Site 1 Cubic Feet / Second 40 Site 2 30 Site 3 20 Site 4 10 Site 5 0 May 31 June 13 July 14 Aug 5 & 14 & 15 Dates 44
  • 45.
    Turbidity 250 200 150 Site 1 JTU's 100 Site 2 50 Site 3 0 Site 4 May 31 June 13 July 14 & Aug 5 Site 5 & 14 15 Dates 45
  • 46.
    Dissolved Oxygen 10 8 6 Site 1 ppm 4 Site 2 2 Site 3 0 Site 4 May 31 June 13 July 14 & Aug 5 Site 5 & 14 15 Date 46
  • 47.
    Dissolved Oxygen 100 Percent Saturation 80 60 Site 1 40 Site 2 20 Site 3 0 Site 4 May 31 June July 14 Aug 5 Site 5 13&14 & 15 Dates 47
  • 48.
    5 Day BiologicalOxygen Demand 6 5 4 ppm 3 Site 1 2 1 Site 2 0 Site 3 May 31 June July 14 Aug 5 Site 4 13 & & 15 14 Site 5 Date 48
  • 49.
    Nitrates 25 20 15 Site 1 ppm 10 Site 2 5 Site 3 0 Site 4 May 31 June 13 & July 14 & Aug 5 Site 5 14 15 Date 49
  • 50.
    Phosphates 2.5 2 1.5 Site 1 ppm 1 Site 2 0.5 Site 3 0 Site 4 May 31 June 13 July 14 Aug 5 & 14 & 15 Site 5 Date 50
  • 51.
    Chemical Test Conclusion •All W.Q.I. numbers were within the medium range, except: - August 5-Sites 2 and 3 (Good) - May 31- Site 2 (Bad) - June 13 and 14-Site 5 (Bad) • Best overall date: August 5 • Best overall site: Site 3 • Consistent pH readings • Dissolved oxygen was consistently low over the summer • Turbidity decreased over the summer • Very high nitrate readings, but did decrease over the summer • High precipitation amounts in June affected testing because of increase in runoff 51
  • 52.
    WQI Averages bySite Site 1 60.48 Site 2 59.93 Site 3 61.41 Site 4 58.98 Site 5 52.66 WQI Averages by Date May 31 57.12 June 13 & 14 52.82 July 14 & 15 57.87 August 5 66.96 52
  • 53.
    WQI Averages bySite 70 60 50 40 2003 Averages 30 2004 Averages 2005 Averages 20 10 0 Site 1 Site 2 Site 3 Site 4 Site 5 Site 53
  • 54.
    WQI Averages byDate 80 70 60 50 2003 Averages 40 2004 Averages 2005 Averages 30 20 10 0 May June July August Month 54
  • 55.
    2003 to 2005Chemical Test Average Comparisons 12 10 8 6 2003 Averages 2004 Averages 4 2005 Averages 2 0 pH . ge s es p. .D te m at ar .O ita Te ph ch B N os is in D Ph e ng ha Chemical Test C 55
  • 56.
    2003 to 2005Chemical Test Average Comparisons 1200 1000 800 2003 Averages 600 2004 Averages 400 2005 Averages 200 0 D.O. % Sat. Turbidity Fecal Coliform Total Solids 56 Chemical Test
  • 57.
    Macro Invertebrates Sensitive Somewhat Sensitive Tolerant 57
  • 58.
  • 59.
    Bio-Indicator Comparison Chart 2002, 2004 and 2005 20 18 16 14 12 Summer 2002 10 Summer 2004 8 Summer 2005 6 4 2 0 Site 1 Site 2 Site 3 Site 4 Site 5 59
  • 60.
    Bio-Indicator Ratings 20 si te 1 15 si te 2 si te 3 atings 10 si te 4 si te 5 R 5 0 M ay Jn e u Jl y u Agu u st M th on 60
  • 61.
    Bio-Indicators Test Conclusions •Diversity decreased over the summer • Best overall date: May 31 • Best overall site: Site 3 (same as last year) • Diversity slightly declined compared to last year • Bio-Indicator scale ranked the Shell Creek slightly below the W.Q.I. rankings – Bio-Indicators-poor to fair – W.Q.I.-medium to good 61
  • 62.
  • 63.
  • 64.
  • 65.
  • 66.
    Look!...There’s a frog,,Cody!...Get it! 66
  • 67.
  • 68.
  • 69.
  • 70.
    100 Width of Shell Creek 90 80 70 60 Feet 50 40 30 20 10 0 6/3 6:00 PM 6/4 5:45 PM 6/10 9:40 AM 6/11 8:00 AM 6/11 12:00 PM 6/11 7:00 PM 6/21 6:00 PM 70
  • 71.
    600 Flow Rates 500 400 Cubic Feet per Second 300 200 100 0 6/3 6:00 PM 6/4 5:45 PM 6/10 9:40 AM 6/11 8:00 AM 6/11 12:00 PM 71 7:00 PM 6/11 6/21 6:00 PM
  • 72.
    40000 Fecal Coliform 483 cfs 30000 160 Colonies per 100 mL cfs 20000 475 cfs 248 cfs 130 10000 508 cfs cfs 96 cfs 0 6/3 6:00 PM 6/4 5:45 PM 6/10 9:40 AM 6/11 8:00 AM 72 7:00 PM 6/11 12:00 PM6/11 6/21 6:00 PM
  • 73.
    25 Nitrates 96 cfs 20 15 508 cfs Parts per Million 10 483 cfs 5 475 130 160 cfs 248 cfs cfs cfs 0 6/3 6:00 PM 6/4 5:45 PM 6/10 9:40 AM 6/11 8:00 AM 6/11 12:00 PM 6/11 7:00 PM 6/21 6:00 PM 73
  • 74.
    1200 Total Solids 508 cfs 1000 800 475 cfs Tons per Hour 600 400 160 200 cfs 248 cfs 483 cfs 96 cfs 130 cfs 0 6/3 6:00 PM 6/4 5:45 PM 6/10 9:40 AM 6/11 8:00 AM 6/11 12:00 PM 74 6/11 7:00 PM 6/21 6:00 PM
  • 75.
  • 76.
    HE THE THETHE THE THE THE THE THE THE THE THE THE THE THE THE TH HE THE T 76 END END END END END END END END END END END END END END END
  • 77.
    Thank You To: • Lower Platte North Natural Resource District • PrairieLand RC&D • Natural Resource Conservation Service • Nebraska Department of Environmental Quality 77 • Shell Creek Watershed Improvement
  • 78.
    Website • http://newman.esu8.org/project.html OR • http://newman.esu8.org/ • Click “Our Students” • Click “Student Projects” • Click “Watershed Project” • You can see our data and further information concerning this project, including pictures. 78