Mississippi River below Lock & Dam 11 (Agency code: M582.5B)

Descriptive statistics of Concentration Data (Milligrams/Liter) 

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =       128       131       131       120        92       128       129       128
Start date =  05/06/93  05/06/93  05/06/93  05/06/93  05/06/93  05/06/93  05/06/93  05/06/93
End date   =  06/15/98  06/15/98  06/15/98  06/15/98  06/15/98  06/15/98  06/15/98  06/15/98
Mx smp int days=    42        28        28        71       386        70        30        30
Mean samp int=    14.7      14.4      14.4      15.7      20.5      14.7      14.6      14.7
Stdv samp int=     3.6       2.3       2.3       7.8      40.3       5.3       2.9       3.2
Mean conc. =      2.39      1.63     0.101     0.151     0.035      28.8      14.8      4.43
Stdev conc.=      0.79      0.79     0.114     0.081     0.030      20.7       6.1      1.83
Min conc.  =      0.80      0.01     0.001     0.050     0.001       1.1       9.1      0.01
25% conc.  =      1.81      1.02     0.030     0.094     0.011      11.9      12.3      3.57
Med. conc. =      2.46      1.70     0.066     0.137     0.031      27.4      14.0      4.74
75% conc.  =      2.88      2.04     0.143     0.186     0.048      39.4      15.8      5.76
Max conc.  =      5.15      4.84     0.800     0.496     0.162     103.1      75.2      8.02

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)