TABLE OF CONTENTS 



Letter of Transmittal i 



1982 Highlights 1 



Introduction 3 



Poplar River Power Station 5 



Operation 5 



Construction 5 



Surface Water Quantity 6 



Natural Flow 6 



Minimum Flows 6 



Reservoir Storage 7 



On Demand Release 9 



Surface Water Quality 9 



Flow-Weighted Concentrations 9 



Flow-Weighted Concentrations — Long-Term Objective 10 



Flow-Weighted Concentrations — Short-Term Objective 10 



Data Compatibility 10 



East Poplar River at International Boundary 11 



Boron 11 



Total Dissolved Solids 15 



Other Water Quality Characteristics 15 



Cookson Reservoir 16 



Ground Water Quantity 17 



Coal Seam Dewatering Saskatchewan 17 



Montana 17 



Ground Water Quality 19 



Montana 19 



Saskatchewan 21 



Ash Lagoon Quality and Quantity 22 



Air Quality 24 



Montana 24 



Saskatchewan 25 



Table 1 - Recommended Water Quality Objectives and Exceedences 12 



Figure 1 - Mean Daily Discharge East Poplar River at 



International Boundary, 1982 8 



Figure 2 - Long Term Flow-Weighted Concentrations for Boron and TDS 13 



Figure 3 - Short Term Flow-Weighted Concentrations for Boron and TDS 14 



Figure 4 - Water Level Decline in Hart Coal Seam 18 



Figure 5 - Major Chemical Composition of Water in Montana Wells 20 



Annex 1 - Poplar River Cooperative Monitoring Arrangement 



Annex 2 - Poplar River Cooperative Monitoring Arrangement - — 

 Technical Monitoring Schedule 



Annex 3 - Metric Conversions 



11 



