Mississippi River below Lock and Dam 7 (Agency code: M701.1B) 

Descriptive Statistics of Concentration Data (Milligrams/Liter)

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =       150       156       156       143       153       150       147       148
Start date =  06/11/91  06/11/91  06/11/91  06/11/91  06/11/91  06/26/91  06/11/91  06/11/91
End date   =  05/05/98  05/05/98  05/05/98  05/05/98  04/22/98  05/05/98  04/22/98  04/22/98
Mx smp int days=   112       112       112       112       112       112       112       112
Mean samp int=    16.9      16.3      16.3      17.7      16.5      16.8      17.2      17.1
Stdv samp int=    11.3      10.5      10.5      12.8      10.7      11.1      11.3      11.0
Mean conc. =      2.55      1.66     0.091     0.143     0.066      15.3      14.1      5.62
Stdev conc.=      0.98      0.74     0.118     0.080     0.042      11.3       4.4      1.81
Min conc.  =      0.01      0.01     0.001     0.044     0.001       1.1       3.4      0.87
25% conc.  =      1.90      1.18     0.026     0.090     0.037       6.2      11.4      4.66
Med. conc. =      2.36      1.64     0.053     0.131     0.060      14.0      13.8      5.69
75% conc.  =      3.01      2.12     0.105     0.177     0.092      21.0      16.3      6.74
Max conc.  =      5.57      3.79     0.870     0.748     0.204      69.4      43.0     11.00

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)