Des Moines River near St.Francisville, MO (Agency code: 05490600) 

Descriptive Statistics of Concentration Data (Milligrams/Liter)

                  TN_N     NOx_N     NHx_N      TP_P     ORP_P       TSS        Cl   SiO2_Si
Total obs. =       160       164        90       171        67       141       173       173
Start date =  07/11/73  07/11/73  10/17/79  01/09/73  11/04/81  02/06/73  01/09/73  01/09/73
End date   =  08/31/93  08/31/93  08/31/93  08/31/93  08/31/93  07/15/92  08/31/93  08/31/93
Mx smp int days=   309       309       309       309       309       398       309       309
Mean samp int=    46.3      45.1      56.9      44.3      65.4      50.7      43.8      43.8
Stdv samp int=    29.4      27.9      34.0      27.5      33.9      41.1      26.7      26.7
Mean conc. =      5.57      4.06     0.125     0.235     0.094     344.7      23.8      4.68
Stdev conc.=      3.30      3.05     0.157     0.156     0.063     657.1      10.1      2.78
Min conc.  =      0.72      0.01     0.000     0.010     0.010       0.0       3.7      0.00
25% conc.  =      2.95      1.50     0.020     0.160     0.040      67.0      17.0      2.24
Med. conc. =      5.25      3.70     0.050     0.200     0.100     148.0      22.0      5.14
75% conc.  =      7.45      6.10     0.200     0.270     0.130     304.0      29.0      6.54
Max conc.  =     18.00     15.00     0.760     1.500     0.290      4350      56.0     10.28

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))