analysis in the Mackenzie Basin, Northwest Territories.
Sediment station 2 is located approximately 260 m south of the discharge of the refinery outfall pipe, and sediment station 3 is located approximately 1.
Based on comparison of the 1978 data with our values for sediment station 2, chromium, beryllium, nickel, arsenic, and lead increased (listed in descending order of magnitude) in St.
Louis Bay in our study were from sediment sites 2 and 3, the two sediment stations
located closest to the plant outfall site.
All other sediment stations were in agriculturally dominated area of the watershed and where taken in close proximity to the sampled fields for which the P-index was determined.
The present study provides a first attempt of such a calibration and although the relationships between individual fields and water and sediment stations are relatively weak there is a clear trend when the data for the P-index was averaged for all fields in each sub-watershed section that drains into each sediment and water quality station.
Shown in Figure 2 are the final locations of precipitation, runoff, and sediment stations