2015-003Eisannexiii
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March 2015 ANNEX III SURFACE WATER ENVIRONMENT BASELINE REPORT Yancoal Southey Project Submitted to: Jiqiu Han, President Yancoal Canada Resources Co., Ltd. Unit 300, 211 - 4th Avenue Saskatoon, Saskatchewan S7K 1N1 Report Number: 12-1362-0197/DCN-042C REPORT ANNEX III SURFACE WATER ENVIRONMENT BASELINE REPORT List of Abbreviations Abbreviation Term ADP Acoustic Doppler Profiler AET actual evapotranspiration ALS ALS Canada Ltd. CaCO3 calcium carbonate CAD Computer-aided Design CCME Canadian Council of Ministers of the Environment CPUE catch-per-unit-effort CWQG Canadian Water Quality Guidelines DFO Fisheries and Oceans Canada EDA Effective drainage area EIS Environmental Impact Statement ELC East Loon Creek GIS geographical information system Golder Golder Associates Ltd. GPS Global Positioning System ID identification ISQG Interim Sediment Quality Guideline KCl potassium chloride LSA local study area MOE Saskatchewan Ministry of Environment NA not applicable NaCl sodium chloride NTS National Topographic System PEL Probable Effects Level PET potential evapotranspiration Project Yancoal Southey Project QA/QC quality assurance/quality control R.M. Rural Municipality RH relative humidity RSA regional study area RMS root mean square SEAA The Environmental Assessment Act (Saskatchewan) SSWQO Saskatchewan surface water quality objectives SWE snow water equivalent TDS total dissolved solids TKN total Kjeldahl nitrogen March 2015 Report No. 12-1362-0197/DCN-042C i ANNEX III SURFACE WATER ENVIRONMENT BASELINE REPORT List of Abbreviations (continued) Abbreviation Term TMA tailings management area TOR Terms of Reference TP Technical Procedure TSS total suspended solids UTM Universal Transverse Mercator W2M West of the Second Meridian WLC West Loon Creek WSA Water Security Agency WQ water quality WQG Water Quality Guidelines Yancoal Yancoal Canada Resources Company Limited Yanzhou Coal Yanzhou Coal Mining Company Limited March 2015 Report No. 12-1362-0197/DCN-042C ii ANNEX III SURFACE WATER ENVIRONMENT BASELINE REPORT List of Units Abbreviation Term % percent # number < less than > greater than °C degrees Celsius cm centimetre fish/100 sec fish per 100 seconds fish/hour fish per hour g gram ha hectares km kilometres km/h kilometres per hour km² square kilometres m metre m2 square metre m³/s cubic metres per second masl metres above sea level mg milligram mg/kg dw milligrams per kilogram dry weight mg/L milligrams per litre mg N/L milligrams nitrogen per litre mg P/L milligrams phosphorous per litre mm millimetre sec second March 2015 Report No. 12-1362-0197/DCN-042C iii ANNEX III SURFACE WATER ENVIRONMENT BASELINE REPORT Table of Contents 1.0 INTRODUCTION ............................................................................................................................................................... 1 1.1 Project Overview .................................................................................................................................................. 1 1.2 Objective of the Surface Water Environment Baseline Report............................................................................. 3 2.0 STUDY AREAS ................................................................................................................................................................ 4 2.1 Regional Study Area ............................................................................................................................................ 4 2.2 Local Study Area ................................................................................................................................................. 4 3.0 HYDROLOGY ................................................................................................................................................................... 6 3.1 Introduction .......................................................................................................................................................... 6 3.2 Hydrological Processes and Water Balance ........................................................................................................ 6 3.3 Baseline Field Program ....................................................................................................................................... 7 3.3.1 Digital Elevation Models ................................................................................................................................. 7 3.3.2 Water Level Surveys and Monitoring ............................................................................................................. 7 3.3.3 Stream Discharge .......................................................................................................................................... 8 3.3.4 Stage and Discharge Rating Curve Development .......................................................................................... 8 3.3.5 Ground Checking of Flow Paths and Cross-Drainage.................................................................................... 9 3.3.6 Weather Station Installation at West Loon Creek ........................................................................................... 9 3.4 Historical Climate Overview ............................................................................................................................... 10 3.4.1 Climate Classification ................................................................................................................................... 11 3.4.2 Air Temperature ........................................................................................................................................... 13 3.4.3 Relative Humidity ......................................................................................................................................... 14 3.4.4 Wind ............................................................................................................................................................. 15 3.4.5 Precipitation ................................................................................................................................................. 16 3.4.6 Precipitation Extremes ................................................................................................................................. 19 3.4.7 Evaporation .................................................................................................................................................. 20 3.5 Topography........................................................................................................................................................ 21 3.6 Hydrography ...................................................................................................................................................... 24 3.7 Regional Hydrology ........................................................................................................................................... 26 3.7.1 Regional Streamflow Stations ...................................................................................................................... 26 March 2015 Report No. 12-1362-0197/DCN-042C iv ANNEX III SURFACE WATER ENVIRONMENT BASELINE REPORT Table of Contents (continued) 3.7.2 Monthly Flows .............................................................................................................................................. 26 3.7.3 Flow Duration Curves ................................................................................................................................... 27 3.7.4 Flood Flows .................................................................................................................................................. 29 3.8 Local Hydrology ................................................................................................................................................. 32 3.8.1 Streamflow Stations ..................................................................................................................................... 32 3.8.2 Water Level and Discharge Results ............................................................................................................. 33 3.8.2.1 Snowmelt and Rainfall Conditions in 2013 ............................................................................................... 35 3.8.2.2 Loon Creek ............................................................................................................................................... 36 3.8.2.3 East Loon Creek ....................................................................................................................................... 37 3.8.2.4 West Loon Creek ...................................................................................................................................... 38 3.8.3 Monthly Mean Flows .................................................................................................................................... 39 3.9 Summary ........................................................................................................................................................... 40 4.0 SURFACE WATER AND SEDIMENT QUALITY ............................................................................................................ 42 4.1 Introduction .......................................................................................................................................................