Mississippi River above Lock and Dam 8 (Agency code: M679.5V) 

Descriptive Statistics of Concentration Data (Milligrams/Liter)

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =       146       152       152       139       148       147       143       144
Start date =  06/13/91  06/13/91  06/13/91  06/13/91  06/13/91  06/25/91  06/13/91  06/13/91
End date   =  05/05/98  05/05/98  05/05/98  05/05/98  04/08/98  05/05/98  04/08/98  04/08/98
Mx smp int days=   106        95        95       106        95       106        95        95
Mean samp int=    17.4      16.7      16.7      18.2      16.9      17.2      17.5      17.4
Stdv samp int=    11.9       9.9       9.9      13.4      10.1      11.6      10.6      10.4
Mean conc. =      2.90      1.98     0.075     0.132     0.054      26.4      14.9      5.43
Stdev conc.=      1.19      0.92     0.105     0.061     0.040      21.0       6.9      1.81
Min conc.  =      0.90      0.01     0.001     0.001     0.001       1.0       5.1      0.05
25% conc.  =      2.05      1.34     0.021     0.083     0.028       5.3      12.4      4.56
Med. conc. =      2.72      1.94     0.040     0.124     0.051      25.7      14.1      5.58
75% conc.  =      3.42      2.51     0.090     0.168     0.074      41.0      16.3      6.60
Max conc.  =      8.69      5.16     0.770     0.292     0.202      89.1      89.0     10.00

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)
TSS     = Total Suspended Solids
Cl      = Dissolved Chloride (as Cl)
SiO2_Si = Dissolved Silicon (as Si)