Black River near Clinton Street Bridge, La Crosse, WI (Agency codes: BK01.0M, B001.0N)

Descriptive Statistics of Concentration Data (Milligrams/Liter)
Statistics are based on mean concentrations for the combined sites
See background information of this site for additional details 

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =       152       160       160       142       155       152       151       154
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  04/24/98  05/05/98  04/24/98  04/24/98
Mx smp int days=   112       112       112       112       112       112       112       112
Mean samp int=    16.7      15.8      15.8      17.9      16.3      16.6      16.7      16.4
Stdv samp int=    10.9       9.6       9.6      13.0      10.2      10.6      11.4      10.4
Mean conc. =      1.78      0.77     0.106     0.123     0.043       9.6      10.2      4.50
Stdev conc.=      0.86      0.51     0.113     0.069     0.030      11.6       5.4      1.74
Min conc.  =      0.35      0.01     0.001     0.001     0.001       0.0       0.1      0.09
25% conc.  =      1.20      0.33     0.030     0.082     0.023       4.8       7.6      3.60
Med. conc. =      1.64      0.74     0.076     0.108     0.041       8.0       9.4      4.78
75% conc.  =      2.09      1.14     0.139     0.150     0.056      12.4      11.4      5.60
Max conc.  =      5.17      2.25     0.615     0.633     0.169     135.5      49.0      9.50

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)