Skunk River at Augusta, IA (Agency code: 05474000)

Descriptive Statistics of Concentration Data (Milligrams/Liter)

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl   SiO2_Si
Total obs. =       113       118        99       115        82       150       115       115
Start date =  01/31/78  11/09/77  10/19/79  11/09/77  11/04/81  03/09/76  11/09/77  11/09/77
End date   =  08/31/95  08/31/95  08/31/95  08/31/95  08/31/95  08/31/95  08/31/95  08/31/95
Mx smp int days=   110       110       110       110       110       406       110       110
Mean samp int=    57.3      55.6      59.1      57.1      62.3      47.7      57.1      57.1
Stdv samp int=    19.9      20.2      19.1      19.9      17.5      43.2      19.9      19.9
Mean conc. =      5.87      4.38     0.153     0.296     0.093      1189      19.7      5.44
Stdev conc.=      3.22      3.08     0.238     0.238     0.054      1653       7.4      6.11
Min conc.  =      0.60      0.03     0.000     0.041     0.010       2.0       6.9      0.05
25% conc.  =      3.80      1.80     0.025     0.150     0.040      78.0      16.0      3.41
Med. conc. =      5.40      4.15     0.060     0.230     0.090     325.0      19.0      5.14
75% conc.  =      8.10      6.80     0.140     0.350     0.130      2070      23.0      7.01
Max conc.  =     15.00     12.00     1.300     1.700     0.240      7990      61.0     65.44

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))