Long Term Resource Monitoring Program water quality site: M764.3A
Site description: Mississippi River at Lake Pepin outflow
Hydrologic Unit Code (HUC): 07040001
Site UTM N: 4917826
Site UTM E: 571635
UTM zone: 15
Drainage area at water quality site: 47,576 mi2
Sampling frequency: biweekly

Flow station: Lock and Dam #4 (USACOE daily flows)
Station description: Lock and Dam #4 near Alma, WI
Hydrologic Unit Code (HUC): 07040003
Station UTM N: 4908355
Station UTM E: 585973
UTM zone: 15
Drainage area at flow station: 57,100 mi2
Period of record: Calculated flow available from 01/02/1968-07/14/1998
Flow conversion: none

Flow station: 05369500 (USGS daily flows)
Station description: Chippewa River at Durand, WI
Hydrologic Unit Code (HUC): 07050005
Station UTM N: 4941902
Station UTM E: 581750
UTM zone: 15
Drainage area at flow station: 9,010 mi2
Period of record: 07/09/1928-09/30/1997
Flow conversion:
1.055 x (flow at 05369500) = estimated flow of Chippewa River near confluence
                             with Mississippi River

The following constituent values were removed from analysis as
possible outliers, or are below detection limits:
Date       Constituent             Concentration
10/06/95   Total Nitrogen           23.0301
10/19/95   Total Nitrogen           22.1807
07/07/93   Total Suspended Solids  382.7300

Additional comments:
Due to the lack of a gauging station at the Lake Pepin outflow, the discharge of
the Mississippi River has been estimated by subtracting the daily flow of the 
Chippewa River from the daily flow at Lock and Dam #4.  The equation used follows.
Flow at M764.3A = (daily flow at Lock and Dam #4) - (converted daily flow of Chippewa River)

Loads for this site were estimated with LOADEST2 version 1.10