Percent of water samples violating water quality standard

Chippewa River near Montevideo
Parameter WQ Standard Mar-Apr May-Jun Jul-Aug Sep-Oct Winter All data
               
Total Phosphorus none* 40 38 68 35 61 48
Fecal Coliform 200 CFU/100 mL 42 38 72 29 88 53
Nitrate & Nitrite -N 10 mg/L limited data
Turbidity 25 NTU 40 50 100 29 0 39
Dissolved Oxygen 5 mg/L 0 0 0 0 0 0
BOD5 5 mg/L 16 18 26 4 24 17
* 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