TABLES 



Table 2.1 Water-Quality Objectives 5 



Table 3.1 Recommended Water-Quality Objectives and Excursions, 2003 Sampling 



Program, East Poplar River at International Boundary 17 



Table 3.2 Geologic Formation Name Equivalence between Saskatchewan and Montana 20 



Table 3.3 Water-Quality Statistics for Water Pumped from Supplementary 



Water Supply Project Wells 25 



Table 3.4 Water-Quality Statistics for Water Pumped from Salinity Control Project 



Wells Sampled at the Discharge Pipe 26 



Table 3.5 Cookson Reservoir Storage Statistics for 2003 30 



Table 3.6 Streamflow Measurement Results for August 6, 2003 33 



Table 3.7 East Poplar River Joint Water-Quality Sample Results for September 9, 2003 34 



FIGURES 



Figure 3.1 Discharge during 2003 as Compared with the Median Discharge from 



1931-2000 for the Poplar River at International Boundary 6 



Figure 3.2 Flow Hydrograph of the East Poplar River at International Boundary 8 



Figure 3.3 Cumulative Volume Hydrograph of On-Demand Release 9 



Figure 3.4 TDS Concentration for 2003 Water-Quality Samples from East Poplar 



River at the International Boundary 12 



Figure 3.5 Three-Month Moving Flow-Weighted TDS Concentration in 2003 for 



East Poplar River at the International Boundary 12 



Figure 3.6 Five- Year Moving Flow- Weighted TDS Concentration in 2003 for 



East Poplar River at the International Boundary 14 



Figure 3.7 Daily TDS Concentration, 1990 to 2003; East Poplar River at the International 



Boundary 14 



Figure 3.8 Daily Boron Concentration, 1990 to 2003; East Poplar River at the 



International Boundary 16 



Figure 3.9 Supplementary Water Supply 18 



Figure 3.10 Pumpage from Salinity Control Project 20 



Figure 3.11 Hydrograph of Selected Wells - Cookson Reservoir Supplementary Supply 22 



Figure 3.12 Hydrograph of Selected Wells - Cookson Reservoir Supplementary Supply 22 



Figure 3.13 Hydrograph of Selected Wells - Fort Union and Hart Coal Aquifers 23 



Figure 3.14 Hydrograph of Selected Wells - Alluvium and Fox Hills Aquifers 24 



Figure 3.15 Total Dissolved Solids in Samples from Montana Wells 29 



Figure 3.16 Cookson Reservoir Daily Mean Water Levels for 2003 and Median 



Daily Water Levels, 1993-2002 31 



