Percent of water samples violating water quality standard

Pomme de Terre River near Appleton
Parameter WQ Standard Mar-Apr May-Jun Jul-Aug Sep-Oct Winter All data
               
Total Phosphorus none* 31 20 63 13 10 28
Fecal Coliform 200 CFU/100 mL 18 36 67 36 13 35
Nitrate & Nitrite -N 10 mg/L 0 0 0 0 0 0
Turbidity 25 NTU 18 31 54 7 0 20
Dissolved Oxygen 5 mg/L 7 4 22 5 15 11
BOD5 5 mg/L 15 12 23 9 5 13
* Values in this row represent the percent of samples that exceed 0.25 mg/L, the mean concentration of total phosphorus in the Minnesota River.


Last Updated on 11/2/97
By Ananda Mallawatantri
Email: ananda@soils.umn.edu