TABLES 



Table 2. 1 Water-Quality Objectives 5 



Table 3. 1 Recommended Water-Quality Objectives and Excursions, 2001 Sampling 



Program, East Poplar River at International Boimdary 18 



Table 3.2 Water-Quality Statistics for Water Pumped from Supplementary 



Water Supply Project Wells 27 



Table 3.3 Water-Quality Statistics for Water Pumped from Salinity Confrol Project 



Wells Sampled at the Discharge Pipe 28 



Table 3.4 Cookson Reservoir Storage Statistics for 2001 32 



Table 3.5 Sfreamflow Measurement Results for July 16, 2001 35 



Table 3.6 East Poplar River Joint Water-Quality Sample Results for August 14, 2001 36 



FIGURES 



Figure 3.1 Discharge during 2001 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 Concenfration for 2001 Grab Samples from East Poplar River at 



International Boundary 1 1 



Figure 3.5 Three-Month Moving Flow- Weighted TDS Concenfration for East Poplar 



River at International Boundary 1 1 



Figure 3.6 Five- Year Moving Flow- Weighted TDS Concenfration for East Poplar River 



at International Boimdary 13 



Figure 3.7 Daily TDS Concenfration, 1990 to 2001, East Poplar River at International 



Boimdary 13 



Figure 3.8 Boron Concenfration for 2001 Grab Samples from East Poplar River at 



International Boundary 15 



Figure 3.9 Three-Month Moving Flow-Weighted Boron Concenfration for East Poplar 



River at International Boimdary 15 



Figure 3.10 Five- Year Moving Flow- Weighted Boron Concenfration for East Poplar 



River at International Boundary 16 



Figure 3.11 Daily Boron Concentration, 1 990 to 2001 , East Poplar River at 



International Boundary 16 



Figure 3.12 Supplementary Water Supply 19 



Figure 3.13 Pumpagefrom Salinity Confrol Project 21 



Figure 3.14 Drawdown for Hart Seam Aquifer as of December 2001 23 



Figure 3.15 Cone of Depression in the Empress Sands Due to the Salinity Confrol Project 



as of December 2001 24 



Figure 3.16 Hydrograph of Selected Wells: Fort Union-Hart Coal Aquifers 25 



Figure 3.17 Hydrograph of Selected Wells: Alluvium and Fox Hills Aquifers 26 



Figure 3.18 Total Dissolved Solids in Samples from Montana Wells 31 



Figure 3.19 Cookson Reservoir Daily Mean Water Levels for 200 1 and Median 



Daily Water Levels, 1981-1991 33 



