Spoon River at Seville, IL (Agency code: 05570000)

Descriptive Statistics of Concentration Data (Milligrams/Liter)

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =        44       159        42        94        42        46        47        42
Start date =  08/30/78  12/19/77  11/18/86  06/17/81  11/18/86  03/18/80  12/05/78  11/18/86
End date   =  08/13/93  09/16/93  08/13/93  09/16/93  08/13/93  08/13/93  08/13/93  08/13/93
Mx smp int days=  2905        84        98      1000        98      1919      2764        98
Mean samp int=     127      36.4      60.0      48.1      60.0       109       117      60.0
Stdv samp int=     434      13.1      21.1       101      21.1       280       400      21.1
Mean conc. =      5.56      4.76     0.078     0.293     0.064     973.7      31.1      3.09
Stdev conc.=      3.25      3.15     0.097     0.315     0.059      1537      16.3      1.71
Min conc.  =      0.50      0.00     0.010     0.020     0.010      28.0       8.2      0.18
25% conc.  =      2.30      2.05     0.020     0.105     0.020      86.0      20.0      1.92
Med. conc. =      5.90      4.90     0.046     0.178     0.050     202.5      27.0      3.39
75% conc.  =      8.25      7.10     0.090     0.320     0.090      1180      37.0      4.67
Max conc.  =     12.00     13.00     0.560     1.800     0.350      7050      76.0      5.61

Flow summaries are in the LOADEST2 diagnostic information

TN_N    = Total Nitrogen (as N)
NOx_N   = Total Nitrate + Nitrite (as N)
NHx_N   = Dissolved Ammonia (as N)
TP_P    = Total Phosphorus (as P)
SRP_P   = Soluble Reactive Phosphorus (as P)
          (measured as Dissolved Orthophosphate) 
TSS     = Total Suspended Solids
Cl      = Dissolved Chloride (as Cl)
SiO2_Si = Dissolved Silicon (as Si)
          (Converted from original concentrations measured 
           as Dissolved Silica (as SiO2))