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BellevillePond-Upper

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					                 Belleville Pond - Upper Multi-year Summary
                                                       Annual Median (Middle) Secchi Depth Transparency
                 1989
                           1990
                                     1991
                                               1992
                                                         1993
                                                                  1994
                                                                           1995
                                                                                     1996
                                                                                              1997
                                                                                                       1998
                                                                                                                1999
                                                                                                                        2000
                                                                                                                                2001
                                                                                                                                        2002
                                                                                                                                                2003
                                                                                                                                                        2004
                                                                                                                                                                2005
                                                                                                                                                                       2006
                                                                                                                                                                              2007
                                                                                                                                                                                     2008
                                                                                                                                                                                            2009
                                                                                                                                                                                                   2010
                                                                                                                                                                                                          2011
            0
Depth (m)




       0.5


            1

                                                                                        Low water clarity - Eutrophic
       1.5

                                                                  Annual Median (Middle) Chlorophyll Level
            20
                                                                                  Elevated algae level - Eutrophic
            15
ppb




            10

            5                                                                     Moderate algae level - Mesotrophic
            0                                                                         Low algae level - Oligotrophic
                 1989
                           1990
                                     1991
                                               1992
                                                         1993
                                                                  1994
                                                                           1995
                                                                                     1996
                                                                                              1997
                                                                                                       1998
                                                                                                                1999
                                                                                                                        2000
                                                                                                                                2001
                                                                                                                                        2002
                                                                                                                                                2003
                                                                                                                                                        2004
                                                                                                                                                                2005
                                                                                                                                                                       2006
                                                                                                                                                                              2007
                                                                                                                                                                                     2008
                                                                                                                                                                                            2009
                                                                                                                                                                                                   2010
                                                                                                                                                                                                          2011
                                                         Annual Mean (Average) Total Phosphorus Level
       100
            80                                                    Extremely elevated nutrient level - Hypereutrophic
ppb




            60
            40                                                                      Elevated nutrient level - Eutrophic
            20                                                              Moderate nutrient level - Mesotrophic
             0                                                                Low nutrient level - Oligotrophic
                  1989
                            1990
                                      1991
                                                1992
                                                          1993
                                                                   1994
                                                                           1995
                                                                                     1996
                                                                                              1997
                                                                                                       1998
                                                                                                                1999
                                                                                                                        2000
                                                                                                                                2001
                                                                                                                                        2002
                                                                                                                                                2003
                                                                                                                                                        2004
                                                                                                                                                                2005
                                                                                                                                                                       2006
                                                                                                                                                                              2007
                                                                                                                                                                                     2008
                                                                                                                                                                                            2009
                                                                                                                                                                                                   2010
                                                                                                                                                                                                          2011




      3500                                                         Annual Mean (Average)Total Nitrogen Level
      3000
      2500
      2000                                                        Extremely elevated nutrient level - Hypereutrophic
ppb




      1500
      1000                                                                           Elevated nutrient level - Eutrophic
       500                                                                        Moderate nutrient level - Mesotrophic
         0                                                                                  Low nutrient level - Oligotrophic
                    1989
                              1990
                                        1991
                                                  1992
                                                           1993
                                                                    1994
                                                                             1995
                                                                                       1996
                                                                                                1997
                                                                                                         1998
                                                                                                                 1999
                                                                                                                         2000
                                                                                                                                 2001
                                                                                                                                         2002
                                                                                                                                                 2003
                                                                                                                                                         2004
                                                                                                                                                                2005
                                                                                                                                                                       2006
                                                                                                                                                                              2007
                                                                                                                                                                                     2008
                                                                                                                                                                                            2009
                                                                                                                                                                                                   2010
                                                                                                                                                                                                          2011

				
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posted:10/18/2012
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