Raccoon River at Van Meter, IA (Agency code: 05484500)

Descriptive Statistics of Concentration Data (Milligrams/Liter)

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =        88        93        49        87        49        41        87        45
Start date =  07/14/75  07/14/75  12/16/86  07/14/75  12/16/86  07/01/86  07/14/75  12/16/86
End date   =  08/10/94  05/29/95  05/29/95  08/10/94  05/29/95  08/10/94  08/10/94  08/10/94
Mx smp int days=  2646      2646       292      2646       292       247      2646       155
Mean samp int=    80.1      78.9      64.3      81.0      64.3      74.1      81.0      63.5
Stdv samp int=     279       273      38.9       281      38.9      41.7       281      22.5
Mean conc. =      7.25      5.86     0.085     0.270     0.095     359.5      23.9      6.99
Stdev conc.=      4.06      4.09     0.161     0.478     0.087     596.3       8.3      2.68
Min conc.  =      0.50      0.04     0.010     0.030     0.010      14.0      10.0      0.34
25% conc.  =      3.80      2.10     0.020     0.130     0.030      53.0      19.0      6.08
Med. conc. =      7.15      5.50     0.040     0.180     0.080     135.0      22.0      7.48
75% conc.  =     10.00      8.80     0.070     0.270     0.130     325.0      26.0      8.88
Max conc.  =     17.00     16.00     0.810     4.400     0.510      2940      56.0     11.22

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))