Vermillion River at Empire, MN (Agency code: VR 15.6)

Descriptive Statistics of Concentration Data (Milligrams/Liter) 

                  TN_N     NOx_N     NHx_N      TP_P     SRP_P       TSS        Cl
Total obs. =       222       406       695       434       295       502        20
Start date =  05/16/77  05/16/77  05/16/77  05/16/77  08/29/77  08/09/76  05/06/92
End date   =  12/18/96  12/18/96  12/18/96  12/18/96  12/18/96  12/18/96  11/06/96
Mx smp int days=   872       665       336       336       423        77       117
Mean samp int=    32.4      17.7      10.3      16.5      24.0      14.8      86.6
Stdv samp int=    58.6      33.0      18.2      22.8      35.6       6.1      19.3
Mean conc. =      5.09      4.29     0.114     0.881     0.696      17.6      74.8
Stdev conc.=      2.21      2.20     0.213     0.648     0.534      48.8      31.4
Min conc.  =      0.86      0.26     0.020     0.010     0.011       1.0      25.0
25% conc.  =      3.76      2.87     0.020     0.440     0.300       5.0      51.5
Med. conc. =      4.52      3.79     0.060     0.740     0.558       8.0      70.0
75% conc.  =      5.61      5.02     0.100     1.100     0.930      17.0      96.5
Max conc.  =     15.36     14.56     1.820     6.500     2.950     830.0     147.0

Flow summaries are in the LOADEST2 diagnostic information

TN_N    = Total Nitrogen (as N)
          (Total Kjeldahl Nitrogen + Nitrate + Nitrite)
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 Orthophosphate) 
TSS     = Total Suspended Solids
Cl      = Dissolved Chloride (as Cl)