s 333.91 M26prar 2000 2000 ANNUAL REPORT to the GOVERNMENTS OF CANADA, UNITED STATES, SASKATCHEWAN AND MONTANA by the POPLAR RIVER BILATERAL MONITORING COMMITTEE COVERING CALENDAR YEAR 2000 STATE DOCUMENTS COLLECTION FEB 0 7 2002 MONTANA STATE LIBRARY 1515 E 6th AVC HELENA, MONTANA 59620 November 2001 MONTANA STATE LIBRARY 3 0864 0015 3164 2 2000 ANNUAL REPORT to the GOVERNMENTS OF CANADA, UNITED STATES, SASKATCHEWAN, AND MONTANA by the POPLAR RIVER BILATERAL MONITORING COMMITTEE COVERING CALENDAR YEAR 2000 November 2001 Poplar River BOateral Monitoring Committee Department of State Department of Foreign Affairs Washington, D.C., United States and International Trade Canada Ottawa, Ontario, Canada Governor's Office Saskatchewan Environment and State of Montana Resource Management Helena, Montana, United States Regina, Saskatchewan, Canada Ladies and Gentlemen: Herein is the 20* Annual Report of the Poplar River Bilateral Monitoring Committee. This report discusses the Committee activities of 2000 and presents the proposed schedule for the year 2001. During 2000, the Poplar River Bilateral Monitoring Committee continued to fulfil the responsibilities assigned by the governments imder the Poplar River Cooperative Monitoring Agreement dated September 23, 1980. Through exchange of Diplomatic Notes in March 1987, July 1992, and July 1997, the Arrangement was extended. Because of an imcertainty about the expiration date for the latest extension as the Canadian and United States exchange of Notes for the extensions had different dates, it is unclear if the Arrangement has already expired or will expire in March 2002. Consequently, the Monitoring Committee has agreed to the request for another extension. That request will be made to the Department of State and the Department of Foreign Affairs in the near future. The enclosed report summarizes current water-quality conditions and conq)ares them to guidelines for specific parameter values that were developed by the International Joint Commission under the 1977 Reference fix)m Canada and the United States. After evaluation of the monitoring information for 2000, the Committee finds that the measured conditions meet the recommended objectives. The Committee notes that the flow-weighted concentration of total dissolved solids in streamflow in the East Poplar River at the International Boimdary remains close to the long-term objective of 1,000 milligrams per litre, but did not exceed the objective in 2000. Based on UC recommendations, the United States was entitled to an on-demand release of 1,230 dam' (1,000 acre-feet) from Cookson Reservoir in 2000. A volume of 1,180 dam' (957 acre-feet) was delivered to the United States during this period. In addition, except for April 28, daily flows in 2000 met or exceeded the minimum flow recommended by the UC. During 2000, monitoring continued in accordance with Technical Monitoring Schedules outlined in the 1992 Annual Report of the Poplar River Bilateral Monitoring Committee. Yours sincerely, Robert Davis ., Richard Kellow Chairman, United States Sectio^ Chairman, Canadian Section -O^ Jack5tults Chuck Bosgoed Member, United States Section Member, Canadian Section TABLE OF CONTENTS Highlights for 2000 iii 1.0 Introduction 1 2.0 Committee Activities 2 2.1 Membership 2 2.2 Meetings 2 2.3 Review of Water-Quality Objectives 3 2.4 Data Exchange 4 3.0 Water and Air: Monitoring and Interpretations 6 3.1 Poplar River Power Station Operation 6 3.2 East Poplar River 6 3.2.1 Streamflow 6 . 3.2.2 Apportionment 7 3.2.3 Minimum Flows 7 3.2.4 On-Demand Release 8 3.2.5 Water Quality 9 3.2.5.1 Total Dissolved Solids 10 3.2.5.2 Boron 14 3.2.5.3 Other Water-Quality Variables 17 3.3 Groundwater 19 3.3.1 Operations 19 3.3.2 Ground-Water Monitoring 21 3.3.2.1 Saskatchewan 21 3.3.2.2 Montana 25 3.3.3 Ground- Water Quality 27 3.3.3.1 Saskatchewan 27 3.3.3.2 Montana 31 3.4 Cookson Reservoir 32 3.4.1 Storage 32 3.4.2 Water Quality 34 3.5 Air Quality 34 3.6 Quality Control 34 3.6.1 Streamflow 34 3.6.2 Water Quality ; 35 ANNEXES 1 .0 Poplar River Cooperative Monitoring Arrangement, Canada-United States Al 2.0 Poplar River Cooperative Monitoring Arrangement, Technical Monitoring Schedules, 2000, Canada-United States A2 3.0 Recommended Flow Apportionment in the Poplar River Basin A3 4.0 Metric Conversion Factors A4 TABLES Table 2.1 Water-Quality Objectives 5 Table 3.1 Recommended Water-Quality Objectives and Excursions, 2000 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 Control Project Wells Sampled at the Discharge Pipe 28 Table 3.4 Cookson Reservoir Storage Statistics for 2000 32 Table 3.5 Streamflow Measurement Results for September 19, 2000 35 Table 3.6 East Poplar River Joint Water-Quality Sample Results for July 1 0, 2000 36 FIGURES Figure 3.1 Discharge during 2000 as Compared with the Median Discharge from 1931-1990 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 2000 Grab Samples from East Poplar River at International Boundary 1 1 Figure 3.5 Three-Month Moving Flow- Weighted TDS Concentration for East Poplar River at International Boimdary 1 1 Figure 3.6 Five- Year Moving Flow- Weighted TDS Concentration for East Poplar River at International Boundary 13 Figure 3.7 Daily TDS Concentration, 1 989 to 2000, East Poplar River at International Boundary 13 Figure 3.8 Boron Concentration for 2000 Grab Samples from East Poplar River at International Boimdary 15 Figure 3.9 Three-Month Moving Flow- Weighted Boron Concentration for East Poplar River at International Boundary 15 Figure 3.10 Five- Year Moving Flow- Weighted Boron Concentration for East Poplar River at International Boundary 16 Figure 3.11 Daily Boron Concentration, 1 989 to 2000, East Poplar River at International Boundary 16 Figure 3.12 Supplementary Water Supply 19 Figure 3.13 Pumpage from Salinity Control Project 21 Figure 3.14 Drawdown for Hart Seam Aquifer as of December 2000 23 Figure 3.15 Cone of Depression in the Empress Sands Due to the Salinity Confrol Project as of December 2000 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 3 1 Figure 3.19 Cookson Reservoir Daily Mean Water Levels for 2000 and Median Monthly Water Levels, 1981-1991 33 HIGHLIGHTS FOR 2000 The Poplar River Power Station completed its seventeenth full year of operation in 2000. The two 300-megawatt coal-fired units generated 4,454,500 gross megawatt hours (MW/h) of electricity. The average capacity factors for Units No. 1 and 2 were 73.9 percent and 90.6 percent, respectively. The capacity factors are based on the maximum generating rating of 305 MW/h for Unit No.l and 310 MW/h for Unit No. 2. Similar to other years, scheduled maintenance was completed in the fall and spring of 2000. Monitoring information collected in both Canada and the United States during 2000 was exchanged in the spring of 2001. In general, the sampling locations, frequency of collection, and parameters met the requirements identified in the 2000 Technical Monitoring Schedules set forth in the 1 999 annual report. The recorded volume of the Poplar River at International Boundary fi-om March 1 to May 31, 2000 was 2,080 dam'' (1,690 acre-feet). Based on International Joint Commission (IJC) recom- mendations and the assumption that the recorded flow is the natural flow, the United States was entitled to a minimum discharge on the East Poplar River of 0.028 cubic metres per second (m^/s) (1.0 cubic foot per second (ftVs)) for the period June 1, 2000 to May 31, 2001. The minimum flow of 0.057 m^/s (2.0 ft^/s) for the period January 1 to May 31, 2000 had previously been determined on the basis of the Poplar River flow volume for March 1 to May 31, 1999. Except for April 28, daily flows in 2000 met or exceeded the minimum flow recommended by the IJC. In addition to the minimum flow, the IJC apportionment recommendation entitles the United States to an on-demand release to be delivered on the East Poplar River during the twelve-month period commencing June 1. Based on the runoff volume of 31,740 dam'' (25,730 acre-feet) recorded at the Poplar River at International Boundary gauging station for March 1 through May 31, 1999, the United States was entitied to an additional release of 1,230 dam^ (1,000 acre-feet) from Cookson Reservoir during the succeeding twelve-month period commencing June 1, 1999. Montana requested this release to be made between May 1 and May 31, 2000. A volume of 1,180 dam^ (957 acre-feet), in addition to the minimum flow, was delivered during this period. The 2000 five-year total dissolved solids (TDS) flow-weighted concentrations were below the long-term objective of 1,000 milligrams per litre (mg/L). The maximum monthly value calculated in 2000 was 972 mg/L, which was less than in 1999. Boron concentrations for 2000 continued to remain well below the long-term objective of 2.5 mg/L. m 1.0 INTRODUCTION The Poplar River Bilateral Monitoring Committee was authorized for an initial period of five years by the Governments of Canada and the United States under the Poplar River Cooperative Monitoring Arrangement dated September 23, 1980. A copy of the Arrangement is attached to this report as Annex 1. Through exchange of Diplomatic Notes, the Arrangement was extended in March 1987, July 1992, and July 1997. The current extension expires in March 2002. A more detailed account of the historical background of the Monitoring Arrangement is contained in the 1 990 Annual Report of the Poplar River Bilateral Monitoring Conmiittee. The Committee oversees monitoring programs designed to evaluate the potential for transboundary impacts fi^om SaskPower's (formerly Saskatchewan Power Corporation) coal-fired thermal generating station and ancillary operations near Coronach, Saskatchewan. Monitoring is conducted in Canada and the United States at or near the International Boundary for quantity and quality of surface and ground water and for air quality. Participants fi*om both countries, including Federal, State and Provincial agencies, are involved in monitoring. The Committee submits an annual report to Governments which svmimarizes the monitoring results, evaluates apparent trends, and compares the data to objectives or standards recommended by the International Joint Commission (IJC) to Governments, or relevant State, Provincial, or Federal standards. The Committee reports to Governments on a calendar year basis. The Committee is also responsible for drawing to the attention of Governments definitive changes in monitored parameters which may require immediate attention. A responsibility of the Committee is to review the adequacy of the monitoring programs in both countries and make recommendations to Governments on the Technical Monitoring Schedules. The Schedules are updated aimually for new and discontinued programs and for modifications in sampling fi-equencies, parameter lists, and analytical techniques of ongoing programs. The Technical Monitoring Schedules listed in the annual report (Annex 2) are given for the forthcoming year. The Committee will continue to review and propose changes to the Technical Monitoring Schedules as information requirements change. 2.0 COMMITTEE ACTIVmES 2.1 Membership The Committee is composed of representatives of the Governments of the United States of America and Canada, the State Government of Montana, and the Provincial Government of Saskatchewan. In addition to the representatives of Governments, two ex-ofBcio members serve as local representatives for the State of Montana and Province of Saskatchewan. During 2000, the members of the Committee included: Mr. R. Davis, U.S. Geological Survey, United States representative and Cochair; Mr. R. Kellow, Environment Canada, Canadian representative and Cochair; Mr. J. Stults, Montana Department of Natural Resources and Conservation, Montana representative; Mr. C. Bosgoed, Saskatchewan Environment and Resource Management, Saskatchewan representative; Mr. C.W. Tande, Daniels County Commissioner, Montana local ex-officio representative; and Mr. J.R. Totten, Reeve, R.M. of Hart Butte, Saskatchewan local ex-officio rq)resentative. 2.2 Meetings The Committee met on July 18* and 19*, 2000, in Moose Jaw, Saskatchewan. Delegated repre- sentatives of Governments, with the exception of the two ex-officio members from Montana and Saskatchewan, attended the meeting. In addition to Committee members, several technical advisors representing Federal, State, and Provincial agencies participated in the meeting. During the meeting, the Committee reviewed the operational status of the Poplar Power Plant and associated coal mining activities; examined data collected in 1999 including surface-water quality and quantity, ground-water quality and quantity, and air quality; established the Technical Monitoring Schedules for the year 2001; discussed proposed changes in water-qiiality objectives and the possibility of replacing the flow- weighting method currently used to compute total dissolved solids and boron. 2.3 Review of Water-Quality Objectives The International Joint Commission in its Report to Governments, titled " Water-Quality in the Poplar River Basin", recommended that the Committee "periodically review the water-quality objectives within the overall Basin context and recommend new and revised objectives as appropriate", hi 1991, the Committee undertook a review of water-quality objectives. The Committee approved changes in water-quality objectives recommended by the 1991 subcommittee which was formed to review the objectives. Revised objectives approved by the Committee are listed in Table 2.1. The Committee discussed the water-quality objectives for 5-year and 3-month flow-weighted concentrations for total dissolved solids and boron. Although the Committee agreed that calculation procedures to determine flow-weighted concentrations are time consuming and probably scientifically questionable, no consensus was reached on alternative objectives or procedures. Some of the discussions and decisions that were made at this meeting include: Suspending most of the parameters that were recommended for discontinuance in 1991 such as dissolved aluminum, bacteria, pH, mercury in fish, and im-ionized ammonia. Canada has expressed concern about the need for the flow-weighted boron and TDS objectives given the uncertainty of the scientific validity of how the objectives are calculated. According to the IJC report titled, "Water-Quality in the Poplar River Basin", the Committee can "recommend new and revised objectives as appropriate". After a lengthy discussion, members agreed not to remove any objectives at this time. Instead, the Committee decided to suspend the monitoring and reporting of several parameters after reviewing the water-quality objectives. The suspended parameters are: dissolved aluminum, un-ionized ammonia, total chromium, dissolved copper, mercury in fish, fecal coliform, and total coliform. The decision to suspend these parameters was based on data indicating concentrations or levels well below or within the objectives. In addition, the Committee agreed there was a need to review the flow-weighted objectives for boron and TDS. The Committee also agreed to other minor revisions to the water-quality objectives for clarification. For example, changing the designation for pH fi-om "natural" to "ambient". Another responsibility of the Committee has included an ongoing exchange of data acquired through the monitoring programs. Exchanged data and reports are available for public viewing at the agencies of the participating governments or from Committee members. 2.4 Data Exchange The Committee is responsible for assuring exchange of data between governments. The exchange of monitoring information was initiated in the first quarter of 1981 and was an expansion of the informal quarterly exchange program initiated between the United States and Canada in 1976. Until 1991, data were exchanged on a quarterly basis. At the request of the Committee, the United States and Canada agreed to replace the quarterly exchange of data with an annual exchange effective at the begirming of the 1992 calendar year. Henceforth, data will be exchanged once each year as soon after the end of the calendar year as possible. However, imusual conditions or anomalous information will be reported and exchanged whenever warranted. No unusual conditions occurred during 2000 which warranted special reporting. Table 2.1 Water-Quality Objectives Parameter Present Objective Recommendation New Objective Boron - total 3.5/2.5' Continue as is - re-evaluate To be determined TDS 1500/1000' Continue as is - re-evaluate To be determined Alurainum, dissolved 0.1 Suspend* — Ammonia, un-ionized 0.02 Suspend* ~ Cadmium, total 0.0012 Continue as is 0.0012 Chromium, total 0.05 Suspend* ~ Copper, dissolved 0.005 Suspend* — Copper, total 1 Continue as is 1 Fluoride, dissolved 1.5 Continue as is 1.5 Lead, total 0.03 Continue as is 0.03 Mercury, dissolved 0.0002 Change to total 0.0002 Mercury, fish (mg/kg) 0.5 Suspend* ~ ■ Nitrate 10 Continue as is 10 Oxygen, dissolved 4.0/5.0^ Objective applies only during open water 4.0/5.0^ SAR (units) 10 Continue as is 10 Sulfate, dissolved 800 Continue as is 800 Zinc, total 0.03 Continue as is 0.03 Water temperature (C) 30.0^ Continue as is 30.0^ pH (units) 6.5* Continue 6.5* Coliform (no./100 ml) 1 Fecal 2000 Suspend* _ 1 Total 20000 Suspend* — Units in mg/L excq>t as noted. 1 . Five-year average of flow-weighted concentrations (March to October) should be <2.5 boron, <1,000 TDS. Three-month average of flow-weighted concentration should be <3.S boron and u. liifiriiiiiiii Figure 33 Cumulative Volume Hydrograph of On-Demand Release. 3.2.5 Water Quality The 198 1 report by the UC to Governments recommended: For the March to October period, the maximum flow-weighted concentrations should not exceed 3.5 milligrams per litre (mg/L) for boron and 1500 mg/Lfor TDSfor any three consecutive months in the East Poplar River at the International Boundary. For the March to October period, the long-term average of flow-weighted concentrations should be 2.5 mg/L or less for boron, and 1000 mg/L or less for TDS in the East Poplar River at the International Boundary. For the period prior to 1982, three-month moving flow-weighted concentration (FWC) for boron and total dissolved solids (TDS) was calculated solely from monthly monitoring results. Since the beginning of 1982, the USGS has monitored specific conductance daily in the East Poplar River at the International Boimdary, making it possible to derive boron and TDS concentration using a linear regression relationship with specific conductance. Thus, the three-month FWC for boron and TDS for the period 1982 to 2000 was calculated from both the results of monthly monitoring (grab samples collected by both Canada and the United States) and the statistical analysis of daily specific conductance readings collected by the USGS. 10 The Bilateral Monitoring Committee adopted the approach that, for the purpose of comparison with the proposed IJC long-term objectives, the boron and TDS data are best plotted as a five-year moving FWC which is advanced one month at a time. Prior to 1988, long-term averages were calculated for a five-year period in which 2.5 years preceded and 2.5 years followed each plotted point. Beginning in 1988, the FWC was calculated fi-om the five-year period preceding each plotted point. For example, the FWC for December 2000 is calculated fi-om data generated over the period December 1995 to December 2000. The calculations are based on the results of samples collected throughout the year, and are not restricted to only those collected during the months bracketing the period of irrigation (March to October) each year. 3.2.5.1 Total Dissolved Solids TDS is inversely related to streamflow at the Intemational Boundary station. During periods of high runoff such as spring fi-eshet, TDS decreases as the proportion of streamflow derived fi"om groimd water decreases. Conversely, during times of low streamflow (late summer, winter) the contribution of ground water to streamflow is proportionally greater. Because ground water has a higher ionic strength than the surface water entering the river, the TDS of the stream increases markedly during low flow conditions. TDS grab-sample data collected by Environment Canada and the USGS in 2000 are shown in Figure 3.4. The TDS ranged fi-om 720 mg/L on May 26 to 1,050 mg/L on December 20. The proposed short- term objective for TDS is 1,500 mg/L. A time plot of the three-month moving FWC for TDS is presented in Figure 3.5. Note that grab-sample-derived data are now plotted with dot symbols. 11 Figure 3.4: TDS Concentration for 2000 Grab Samples from East Poplar River at International Boundary 1200 1000 f 800 1 600 Q 400 S 200 ♦ 879 ♦ 938 ♦ 934 ♦ 935 ^ ^^ ♦ 936 ♦ 1021 <> 1050 ♦ 720 Figure 3.5: Three-Month Moving Flow-Weighted TDS Concentration for East Poplar River at International Boundary 1600 1400 i 1200 E. •o 1000 - 800 (S 600 - o 400 ■ Gratxample^erived data Regressioixierived data Q}Q)Q}Q)Q)0)Q)Q) "^ 'nJ 00 00 00 00 00 CD O -^ rO 03 8 iS D) D) lU fl> Q} (O (O CO CO tf> Q O 00(0 0-' 12 The TDS objective has not been exceeded during the period of record. On inspection of the plot, it is apparent that the three-month moving FWC has been increasing gradually, year by year, up until the spring runoff of 1997, when an exceptionally heavy snowmelt contributed sufficient water of low ionic strength to the river and the reservoir to dilute the accumulated salts built up in the system. Dissolved solids declined slightly in 1 999 and remained lower in 2000. The five-year moving FWC for TDS (Figure 3.6) did not exceed the long-term objective of 1,000 mg/L in 2000. The maximum monthly value calculated in 2000 was 972 mg/L, which is less than the previous year maximum monthly value of 989 mg/L. The daily TDS values, as generated by linear regression from the daily specific-conductance readings, from December 1989 to December 2000 are shown in Figure 3.7. The data show an abrupt drop in TDS corresponding to the snowmelt runoff occurring during the spring of each year. The relationship between TDS and specific conductance applied to data collected from 1975 to 2000 is as follows: TDS = (0.626 X specific conductance) + 31.542 (R^ = 0.85, n = 555) 13 Figure 3.6: Five- Year Moving Flow-Weighted TDS Concentration for East Poplar River 1200 i i at International Boundary 1000 1 t «°° - 1 i f i i 1 j ' 1 /■ 1 i 1 1 n 1 / j 1 8> |A>— nT f- \i 1 1 i M i ■ Dissolve r 1 1 I i ^~ 1 Total — ■ — - — — ' — i 1 0 \ >>>■ ^■h % % % ^ ^ i 1 1 1 1 1 1 ! 1 . i 1 1600 i Figure 3.7: Daily TDS Concentration, 1989 to 2000 East Poplar River at International Boundary (regression-derived data) 14 3.2.5.2 Boron Figure 3.8 shows that during 2000, boron concentrations in the East Poplar River at International Boundary varied from 0.961 (May 26) to 2.01 mg/L (June 12). The three-month moving FWC for boron for the period of record is shown in Figure 3.9. The short-term objective of 3.5 mg/L has not been exceeded over the period 1975 to 2000. It can be seen that the data derived from grab samples and that derived from regression with specific conductance are similar, with the highs and lows in some degree of correspondence. This suggests that the regression generation of boron and TDS values is, in general terms, a valid procedure despite problems which arise from attempting to generate representative concenfration and flow data for an entire month, based on a limited number of samples. The five-year moving FWC for boron displayed in Figure 3.10 remained well below the long-term objective of 2.5 mg/L. From mid- 1993 to the end of the data period there is a distinct drop in the computed boron concentrations. It is apparent that TDS is better-correlated with specific conductance than is boron. Boron is a relatively minor ion, and does not in itself contribute to a large degree to the total load of dissolved constituents in the water. Accordingly, it appears likely that the standard deviation of dissolved boron (relative to the long-term mean boron concentration) may be greater than that of the major cations (sodium, potassium, and magnesium) and anions (sulphate, bicarbonate, and chloride) around their respective long-term mean concentrations. Daily boron concentrations for the period December 1989 to December 2000 are shown in Figure 3.1 1. The relationship between boron and specific conductance at the East Poplar River sampling location during the period 1975 to 2000 is described by the equation: boron = (0.0013 x specific conductance) - 0.034 (R^ = 0.58, n = 555) 15 Figure 3.8: Boron Concentration for 2000 Grab Samples from East Poplar River at International Boundary ^ 1-8 S 1.6 ►-2^1 ♦ 1.88 ♦ 1.89 -♦4^1- ♦ 1.74 ♦ 1.69 ♦ 1.65 0 1.57 ^,.55 0.8 ♦ 1.46 ♦ 0.961 1.85 Figure 3.9: Three-Month Moving Flow-Weighted Boron Concentration for East Poplar River at International Boundary 3.5 3 - 2.5 — 1.5 ■ 0.5 - 0)0}&>D>D)fi}fl)Q)0}Q> CO O -» S 2 03 (0 (O CO 09 -* ro w ^ oi 8 2 16 Figure 3.10: Five- Year Moving Flow-Weighted Boron Concentration for East Poplar River at International Boundary 2.5 1.5 0.5 -r -^ -^ -^ -^ -^ ^ */ ^ ^ ^ % ^ ^ <%> ^ •% */ "^ •%> •%■ % "%« •?> <%) -%> ^ ^/ Figure 3.11 : Daily Boron Concentration, 1989 to 2000 E£ist Poplar River at International Boundary (regression-derived data) 3.00 0.00 V^iH^wl f 17 3.2.53 Other Water-Quality Variables Table 3.1 contains the multipurpose water-quality objectives for the East Poplar River at International Boundary, recommended by the International Poplar River Water Quality Board to the UC. The table shows the number of samples collected for each parameter and the number of times over the course of the year that the objectives were exceeded. In the table, multiple replicate samples collected dxuing the aimual quality control exercise are treated as a single sample, but where an objective was exceeded in a rqjlicate sample, this is charged against the single sample noted. As the table shows, all parameters were within the appropriate objectives. Dissolved-oxygen concentration can be low during winter as a result of ice cover and during low-flow conditions in summer as a result of biological activity. t8 Table 3.1 Recommended Water-Quality Objectives and Excursions, 2000 Sampling Program, East Poplar River at International Boundary (units in mg/L, except as otherwise noted) Parameter Objective No. of Samples Excursions USA Canada Objectives recommended by IJC to Gk)vemments i Boron - dissolved 3.5/2.5 (1) 6 6 0 Total Dissolved Solids 1,500/1,000(1) 6 6 0 Objectives recommended by Poplar River Board to the IJC | Ammonia un-ionized (as N) 0.2 6 5 0 Cadmium - total 0.0012 2 6 0 Copper - total 1.0 2 6 0 Fluoride - dissolved 1.5 6 6 0 Lead - total 0.03 2 6 0 Mercury - total 0.0002 2 4 0 Nitrate (as N) 10.0 6 6 0 Oxygen - dissolved 4.0/5.0 (2) 6 6 0 Sodium adsorption ratio 10.0 6 0 0 Sulphate - dissolved 800.0 6 6 0 Zinc -total 0.03 1 6 0 Water temperature (Celsius) 30.0 (3) 6 6 0 pH (pH units) 6.5 (4) 6 6 0 ( 1 ) Three-month average of flow-weighted concentrations should be <3.5 mg/L boron and < 1 ,500 mg/L ' flow-weighted concentrations (March to October should be <2.5 mg/L boron and 2 749 C 5 747 (0 lU 746 743 Full Supply Level ,2000 / Median Level Minimum Desired Operating Minimum Useable Storage Level Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Figure 3.19 Cookson Reservoir Daily Mean Water Levels for 2000 and Median Daily Water Levels, 1981-1991 34 3.4.2 Water QuaUty The period from 1987 to 1993 saw very low volumes of surface-water runoff to Cookson Reservoir. Consequently, total dissolved solids (TDS) in the reservoir increased steadily from approximately 780 mg/L to over 1,800 mg/L. Since 1993, higher runoff volumes have improved reservoir water quality. Since 1997, the TDS levels in the reservoir have generally remained below 1,000 mg/L. The average TDS level in Cookson Reservoir in 2000 was 719 mg/L, up slightly from 1999 but still well below past levels. 3.5 Air Quality SaskPower's ambient SO2 monitoring for 2000 recorded one value greater than SERM's one-hour average standard of 0.17 ppm on April 19 and six values greater than the 24-hour average standard of 0.06 ppm, four of which occurred on May 12. The ambient SO2 monitor was out of service from June through December. Letters to SERM were sent on June 7 and September 18 informing them of the condition of the ambient SO2 monitor. Readings from the ambient SO2 monitor continue to be infrequent and of insignificant magnitude. The 2000 geometric mean for the high- volume suspended particulate sampler was 19.7 \ig/m^ and 2000 was the ninth consecutive year of below-average particulate readings. 3.6 Quality Control 3.6.1 Streamflow Current-meter discharge measurements were made at the East Poplar River at International Boundary site on September 19, 2000 by persoimel from the U.S. Geological Survey (USGS) and Environment Canada (EC) to confirm streamflow measurement comparability. Data from the two current-meter discharge measurements are shown in Table 3.5. The measured discharges compared fairly well with the theoretical discharge computation of 0.074 m^/s for the 90° V-notch weir. 35 Table 3.5 Streamflow Measurement Results for September 19, 2000 Agency Time CST Width (m) Mean Area (m') Velocity (m/s) Gauge Height (m) Discharge (m^/s) EC 1100 3.4 0.330 0.209 1.664 0.069 USGS 1050 3.4 0.302 0.215 1.664 0.065 3.6.2 Water Quality Quality-control sampling was carried out at the East Poplar River at International Boundary on July 10, 2000. Participating agencies included the U.S. Geological Survey, Environment Canada, and SaskPower. Sets of triplicate samples were split from USGS sampling chums and submitted to the respective agency laboratories for analyses. Field procedures were identical to those used since 1986. Sample results are shown in Table 3.6. ■o H N Vi w n r 2 n c o — r r •D O n > 'V H CO -a H X (A 3 5. c 3 O o 3 T3 3- W n a. t r c' 3 1 o 3 •< n 3 o. Si' (A 3 r 1 n a. P a p. o 3 IS, n C o rt D. w' en 3 r o n o fi3 t r a. 3 1 o 3 cp 3 3 o 3^ 5' Q. y VI z 3 3 2. n < o o. So' en tn jn 3 O 3 3 a. w' y 3 63 1 ft < rt' 3 O C/3 H > m n ca CL OQ s. o' 3 r r or r n OO -0 <-^ r- &3 O o OO K> o hO w> o A A o O O o NO _ O !u o o NO --1 — o O b o b o o o o to ?o Ov to bo O o o ►— ^ o o o ^— < < ■^ Ul to so 00 o n z n < > so o u> O A A o o o o NO *— ■ 3 »-« o o o o O b O b o to o n VO -o On c« to On o o o to VO o O b o o b o b o A O b P A p A p p to O VO 00 -o o 2 H ^^ ^ o to o NJ o VO o 00 NJ A to (-« lyi A A A o A A o VO _ „ o o b OO -J o o\ O b p O b U) O b — 00 00 o u» L» o o <^ o A K> w> A A A o A A o VO __ _ O b OO OS o O b p O b u> O b — o 00 On to C u> wi o o ^ o yj ~" o -~ — "- 0 A to L» A A A o A A o NO __ _ O b 00 -J o O b p p uj O b O OO OO o u> wi o o o ■p>- o OO K) o u> tyi o A o o o o o NO * _ K) " o o ■U u» O o U) o o o Ul *. '-' o N> o o ON OO u> ~~j Ui o 00 o VO 0\ ^ u> u> c/3 o U) o A A o o A o VO * »~ > o o to O b o b 1>J o o O b o to b to KJ u> ■u o ■u G VO i>j u> s O o Lk> o A o o o o o VO « __ o o u> O '^ u> o ;3 o 00 to i PO ^^ On o ^ OJ o o On »^ Ni On Ul M-> (jj o u> 00 u» u» 36 w o TS •5 3 ANNEX 1 POPLAR RIVER COOPERATIVE MONITORING ARRANGEMENT CANADA-UNITED STATES Al-1 September 23, 1980 POPLAR RIVER COOPERATIVE MONITORING ARRANGEMENT I. PURPOSE ; . : This Arrangement will provide for the exchange of data collected as described in the attached Technical Monitoring Schedules in water-quality, water quantity and air quality monitoring programs being conducted in Canada and the United States at or near the International Boimdary in response to SaskPower development. This Arrangement will also provide for the dissemination of the data in each country and will assure its comparability and assist in its technical interpretation. The Arrangement will replace and expand upon the quarterly information exchange program instituted between Canada and the United States in 1976. n. PARTICIPATING GOVERNMENTS Governments and government agencies participating in the Arrangement are: Govenmient of Canada: Environment Canada Govenmient of the Province of Saskatchewan: Saskatchewan Environment and Resource Management Government of the United States of America: United States Geological Survey Government of the State of Montana: Executive Office m. POPLAR RIVER MONITORING COMMITTEE: TERMS OF REFERENCE A binational committee called the Poplar River Bilateral Monitoring Committee will be established to carry out responsibilities assigned to it under this Arrangement. The Committee will operate in accordance with the following terms of reference: Al-2 A. Membership The Committee will be composed of four representatives, one from each of the participating Governments. It will be jointly chaired by the Government of Canada and the Government of the United States. There will be a Canadian Section and a United States Section. The participating Governments will notify each other of any changes in membership on the Committee. Co-chairpersons may by mutual agreement invite agency technical experts to participate in the work of the Committee. The Governor of the State of Montana may also appoint a chief elective ofRcial of local government to participate as an ex-officio member of the Committee in its technical deliberations. The Saskatchewan Minister of the Environment may also appoint a similar local representative. B. Fvmctions of the Committee The role of the Committee will be to fulfil the purpose of the Arrangement by ensuring the exchange of monitored data in accordance with the attached Technical Monitoring Schedules, and its collation and technical interpretation in reports to Governments on implementation of the Arrangement. In addition, the Committee will review the existing monitoring systems to ensure their adequacy and may recommend to the Canadian and United States Governments any modifications to improve the Technical Monitoring Schedules. 1. Information Exchange Each Co-chairperson will be responsible for transmitting to his counterpart Co-chairperson on a regular, and not less than quarterly basis, the data provided by the cooperative monitoring agencies in accordance with the Technical Monitoring Schedules. Al-3 3d' &'"i 3d J a: 2. Reports (a) The Committee will prepare a joint Annual Report to the participating governments, and may at any time prepare joint Special Reports. (b) Annual Reports will i) summarize the main activities of the Committee in the year under Report and the data which has been exchanged under the Arrangement; ii) draw to the attention of the participating governments any definitive changes in the monitored parameters, based on collation and technical interpretation of exchanged data (i.e. the utilization of summary, statistical and other appropriate techniques); iii) draw to the attention of the participating governments any recommendations regarding the adequacy or redundancy of any scheduled monitoring operations and any proposals regarding modifications to the Technical Monitoring Schedules, based on a continuing review of the monitoring programs including analytical methods to ensure their comparability. (c) Special Reports may, at any time, draw to the attention of participating governments definitive changes in monitored parameters which may require immediate attention. (d) Preparation of Reports Reports will be prepared following consultation with all committee members and will be signed by all Committee members. Reports will be separately forwarded by the Committee Co-chairmen to the participating governments. All annual and special reports will be so distributed. Al-4 3. Activities of Canadian and United States Sections The Canadian and United States section will be separately responsible for: (a) dissemination of information within their respective countries, and the arrangement of any discussion required with local elected officials; (b) verification that monitoring operations are being carried out in accordance with the Technical Monitoring Schedules by cooperating monitoring agencies; (c) receipt and collation of monitored data generated by the cooperating monitoring agencies in their respective coimtries as specified in the Technical Monitoring Schedules; (d) if necessary, drawing to the attention of the appropriate government in their respective countries any failure to comply with a scheduled monitoring function on the part of any cooperating agency under the jurisdiction of that government, and requesting that appropriate corrective action be taken. IV. PROVISION OF DATA In order to ensure that the Conmiittee is able to carry out the terms of this Arrangement, the participating governments will use their best efforts to have cooperating monitoring agencies, in their respective jurisdictions provide on an ongoing basis all scheduled monitored data for which they are responsible. V. TERMS OF THE ARRANGEMENT The Arrangement will be effective for an initial term of five years and may be amended by agreement of the participating governments. It will be subject to review at the end of the initial term and will be renewed thereafter for as long as it is required by the participating governments. Al-5 ANNEX 2 POPLAR RIVER COOPERATIVE MONITORING ARRANGEMENT TECHNICAL MONITORING SCHEDULES 2000 CANADA-UNITED STATES A2- 1 TABLE OF CONTENTS PREAMBLE A2 - 3 CANADA STREAMFLOW MONITORING A2 - 5 SURFACE-WATER-QUALITY MONITORING A2 - 7 GROUND-WATER PIEZOMETERS TO MONITOR POTENTIAL DRAWDOWN DUE TO COAL SEAM DEWATERING NEAR THE INTERNATIONAL BOUNDARY A2- 1 0 GROUND- WATER PIEZOMETER MONITORING - POWER STATION AREA A2 - 1 2 GROUND-WATER PIEZOMETER MONITORING - ASH LAGOON AREA WATER LEVEL A2-14 WATER QUALITY A2-17 AMBIENT AIR-QUALITY MONITORING A2 - 22 UNITED STATES STREAMFLOW MONITORING A2 - 25 SURFACE-WATER-QUALITY MONITORING A2 - 27 GROUND-WATER-QUALITY MONITORING A2 - 29 GROUND-WATER LEVELS TO MONITOR POTENTIAL DRAWDOWN DUE TO COAL SEAM DEWATERING A2 - 3 1 A2-2 PREAMBLE The Technical Monitoring Schedule lists those water quantity, water-quality and air quality monitoring locations and parameters which form the basis for information exchange and reporting to Governments. The structure of the Committee responsible for ensuring the exchange takes place is described in the Poplar River Cooperative Monitoring Arrangement. The monitoring locations and parameters listed herein have been reviewed by the Poplar River Bilateral Monitoring Committee and represent the basic technical information needed to identify any definitive changes in water quantity, water-quality and air quality at the hitemational Boundary. The Schedule was initially submitted to Governments for approval as an attachment to the 1981 report to Governments. Changes in the sampling locations and parameters may be made by Governments based on the recommendations of the Committee. Significant additional information is being collected by agencies on both sides of the International Boundary, primarily for project management or basin-wide baseline data purposes. This additional information is usually available upon request from the collecting agency and forms part of the pool of technical information which may be drawn upon by Governments for specific study purposes. Examples of additional information are water quantity, water-quality, ground-water and air quality data collected at points in the Poplar River basin not of direct concern to the Committee. In addition, supplemental information on parameters such as vegetation, soils, fish and waterfowl populations and aquatic vegetation is also being collected on either a routine or specific studies basis by various agencies. A2-3 POPLAR RIVER COOPERATIVE MONITORING ARRANGEMENT TECHNICAL MONITORING SCHEDULES 2000 CANADA A2-4 STREAMFLOW MONITORING Daily mean discharge or levels and instantaneous monthly extremes as normally published in surface water data publications. Responsible Agency: Environment Canada No. on Map Station No. Station Name 1* 11AE003 (06178500) East Poplar River at International Boundary 2 11AE013*** Cookson Reservoir near Coronach 3 11AE015*** Girard Creek near Coronach Cookson Reservoir 4 11AE014*** East Poplar River above Cookson Reservoir 5 Fife Lake Overflow** 6* 1 1 AE008 (06178000) Poplar River at International Boundary * - International gauging station ** - Miscellaneous measurements of outflow to be made by Sask Water during periods of outflow only. *** - Sask Water took over the monitoring responsibility effective July 1/92. A2-5 0 5 10 15 KILOMETRES I ^-r-^ h HYDROMETRIC GAUGING STATIONS (CANADA) A2-6 SURFACE-WATER-QUALITY MONITORING Sampling Locations Responsible Agency: Saskatchewan Environment and Resource Management* No. on Map Station No. Station Name 1 7904 Fife Lake Overflow 2 12412 Discontinued Girard Creek at Coronach Reservoir Outflow 3 12377 Discontinued Upper End of Cookson Reservoir at Highway 36 4 12368 Cookson Reservoir near Dam 5 12386 East Poplar River at Culvert Immediately Discontinued Below Cookson Reservoir * Data collected by SaskPower Responsible Agency: Environment Canada No. on Map Station No. Station Name 6 00SA11AE0008 East Poplar River at hitemational Boundary A2-7 PARAMETERS eAgCTicy^bnvironmen^anada Responsib NAQUADAT* Code Anilytkal Method SampUog Frequencj' Sudon So. 6 10151 Alkalinity-phenolphthaleiii Potentiometric Titration BM 10111 Alkalinity-toal Potentiometric Titration BM 13102 Aluminum-dissolved AA-Direcl BM 13302 Aluminum-extracted AA-Direct BM 07570 Ammonia-free Calculated BM 07540 Ammonia-total Automated Colourimetric m 33108 Afsenic-dissolved ICAP-hydride BM 56001 Barium-total AA-Direct BM 06201 Bicartmnates Calculated BM 05211 Boron-dissolved ICAP BM 96360 Bromoxynil Gas Chromatogiaphy BM 48002 Cadmium-total AA Solvent Extraction BM 20103 Calcium AA-Direct BM 06104 Caibon-dissolved organic Automated IR Detection BM 06901 Cart)on-particulate Elemental Analyzer BM 06002 Caibon-total organic Calculated BM 06301 Caitwnates Calculated BM 17206 Chloride Automated Colouiimetric BM 06717 Chlorophyll a Spectrophotometric BM 24003 Chromium- total AA-Solvent Extraction BM 27002 Cobalt-total AA-Solveni Extraction BM 36012 Coliform-fecal Membrane Filtration BM 36002 Coliform-total Membrane Filtration BM 02021 Colour Comparator BM 02041 Conductivity Wheatslone Bridge BM 29005 Copper-total AA-Solvent Extraction BM 06610 Cyanide Automated UV-Colourimetric BM 09117 Fluoride-dissolved Electrometric BM 06401 Free Carbon Dioxide Calculated BM 10602 Hardness Calculated BM 17811 Hexachlorobenzene Gas Chromatography BM 08501 Hydroxide Calculated BM 26104 Iron-dissolved AA-Direct BM 82002 Lead-total AA-Solvent Extraction BM 12102 Magnesium AA-Direct BM 25104 Manganese-dissolved AA-Direct BM 80011 Mercury-total Flameless AA BM 07901 N-particulate Elemental Analyzer BM 07651 N-total dissolved Automated UV Colourimetric BM 10401 NFR Gravimetric BM 28002 Nickel-total AA-Solvent Extraction BM 07110 Nitrate/Ninite Colourimetric BM 07603 Nitrogen- total Calculated BM 10650 Non-Cai<)onate Hardness Calculated BM 18XXX Organo Chlorines Gas Chromatography BM 08101 Oxygen-dissolved Winkler BM 15901 P-particulate Calculated BM 15465 P-total dissolved Automated Colourimetric BM 185XX Phenoxy Herbicides Gas Chromatography BM 15423 Phosphoius-total Colourimenic (TRAACS) BM 19103 Potassium Flame Emission BM 11250 Percent Sodium Calculated BM 00210 Saturation Index Calculated BM 34108 Selenium-dissolved ICAP-hydride BM 14108 Silica Automated Colourimetric BM 11103 Sodium Flame Emission BM 00211 Stability Index Calculated BM 16306 Sulphate Automated Colourimetric BM 00201 TDS Calculated BM 02061 Temperature Digital Thennometer BM 02073 Turbidity Nephelometry BM 23002 Vanadium-total AA-Solvent Extraction BM 30005 Zinc-total AA-Solvent Extraction BM 10301 PH Electrometric BM 92111 Uranium Fluomctric MC * - Computer Storage and Retrieval System — Environment Canada AA - Atomic Absorption IR - Infrared NFR - Nonfilterable Resklue MC - Monthly Composite ICAP - Inductively Coupled Argon Plasma. UV - Ultraviolet BM - Bimonthly (Alternate months sampled by USGS) A2-8 A SASKATCHEWAN ENVIRONMENT AND RESOURCE MANAGEMENT ■ ENVIRONMENT CANADA 0 5 10 15 KILOMETRES I ' 1 — ' S SURFACE-WATER-QUALITY MONITORING STATIONS (CANADA) A2-9 GROUND-WATER PIEZOMETERS TO MONITOR POTENTIAL DRAWDOWN DUE TO COAL SEAM DEWATERING NEAR THE INTERNATIONAL BOUNDARY Responsible Agency: Sask Water* Measurement Frequency: Quarterly Piezometer Location Tip of Screen Perforation Zone Number Elevation (m) (depth in metres) 52 NW 14-1-27 W3 , 738.43 43 - 49 (in coal) 506A SW 4-1-27 W3 748.27 81 -82 (in coal) 507 SW 6-1-26 W3 725.27 34 - 35 (in coal) 509 NWl 1-1-27 W3 725.82 76 - 77 (in coal) 510 NW 1-1-28 W3 769.34 28 - 29 (in layered coal and clay) * Data Collected by: SaskPower A2-10 10 15 KILOMETRES GROUND-WATER PIEZOMETERS TO MONITOR POTENTIAL DRAWDOWN DUE TO COAL-SEAM DEWATERING A2-11 GROUND-WATER PIEZOMETER MONITORING - POPLAR RIVER POWER STATION AREA SPC Piezometer Number Completion Formation C525 Empress C526 Empress C527 Empress C528 Oxidized C539 Empress C540 Empress C737 Empress C739 Empress C740 Empress C741 Empress C743 Empress C746 Mottled Till C747 Mottled Till C748 Mottled Till C756 Empress Water levels measured quarterly SPC Piezometer Number Completion Formation €739 Empress Samples collected amiually A2-12 A2-13 GROUND-WATER PTF7,OMETER MONITORING— ASH LAGOON AREA-WATER LEVEL SPC Piezometer Number Completion Formation C529 Empress C533 Empress C534 Oxidized Till C535 Empress C536 Empress C537 Empress C538 Empress C542 Empress C653A Unoxidized Till C654 Unoxidized Till C655A Unoxidized Till C655B Unoxidized Till C711 Oxidized Till C712A Unoxidized Till C7I2B Intra Till Sand C712C Mottled Till C712D Oxidized Till C713 Oxidized Till C714A Unoxidized Till C714B Mottled Till C714C Oxidized Till C714D Oxidized Till C714E Empress C715 Oxidized Till C716 Oxidized Till C717 Oxidized Till C718 Mottled Till C719 Oxidized Till C720 Oxidized Till C721 Oxidized Till C722 Oxidized Till C723 Oxidized Till A2-14 GROUND-WATER PTFZOMETER MONITORING— ASH LAGOON AREA-WATER LEVEL SPC Piezometer Number Completion Formation C724 Mottled Till C725 Oxidized Till C726A Oxidized Till C726B Mottled Till C726C Oxidized Till C726E Empress C727A Unoxidized Till C727B Mottled Till C727C Oxidized Till C728A Oxidized Till C728B Unoxidized Till C728C Mottled Till C728D Oxidized Till C728E Empress C731 Empress C732 Empress C734 Empress C742 Empress C745 Oxidized Till C749 Mottled Till C750 Unoxidized Till C751 Unoxidized Till C752 Unoxidized Till C753 Oxidized Till C757 Unoxidized Till C758 Intra Till Sand C763A Mottled Till C763B Oxidized Till C763C Mottled Till C763D Unoxidized Till C763E Empress C764B Mottled Till A2-15 GROUND- WATER PTF7,0METER MONITORING— ASH LAGOON AREA-WATER LEVEL SPC Piezometer Number Completion Formation C764C Oxidized Till C764D Unoxidized Till C764E Empress C765A Empress C765C Oxidized Till C765D Oxidized Till C765E Mottled Till C766 Intra Till Sand C766A Empress C767 Intra Till Sand C767A Empress C767B Unoxidized Till C775A Oxidized Till C775C Unoxidized Till C776A Oxidized Till C776B Oxidized Till C867B Oxidized Till C867C Unoxidized Till C868B Oxidized Till C868C Unoxidized Till C869B Oxidized Till C869C Unoxidized Till C870E Empress C871B Oxidized Till C871C Unoxidized Till C872B Oxidized Till C872C Unoxidized Till C873E Empress Water levels measured quarterly A2-16 Responsible Agency: SERM 1 GROUND-WATER PIEZOMETER MONTTORING- ASH LAGOON AREA - WATER QUALITY SPC Piezometer Number Completion Formation C529 Empress C532 Empress C533 Empress C534 Oxidized Till C536 Empress C538 Empress C653A Unoxidized Till C655A Unoxidized Till C712A Unoxidized Till C712B Intra Till Sand C712C Mottled Till C712D Oxidized Till C713 Oxidized Till C714A Unoxidized Till C714C Oxidized Till 1 C714D Oxidized Till C714E Empress C715 Oxidized Till C716 Oxidized Till C718 Mottled Till C719 Oxidized Till C726A Oxidized Till C726C Oxidized Till C726E Empress C728A Oxidized Till C728B Unoxidized Till C728C Mottled Till A2-17 GROUND- WATER PTF70METER MONTTORING- ASH LAGOON AREA - WATER QUALITY SPC Piezometer Number Completion Formation C728D Oxidized Till C728E Empress C731 Empress C732 Empress C734 Empress C742 Empress C745 Oxidized Till C749 Mottled Till C750 Unoxidized Till C751 Unoxidized Till C752 Unoxidized Till C753 Oxidized Till C757 Unoxidized Till C758 Intra Till Sand C763A Mottled Till C763B Oxidized Till C763D Unoxidized Till C763E Empress C766 Intra Till Sand C767 Intra Till Sand C767A Empress C775A Oxidized Till C775C Unoxidized Till C867B Oxidized Till C867C Unoxidized Till C868B Oxidized Till C868C Unoxidized Till C869B Oxidized Till C870E Empress C871B Oxidized Till A2-18 GROUND-WATER PTF7,0METER MOhflTORING- ASH LAGOON AREA - WATER QUALITY SPC Piezometer Number Completion Formation C871C Unoxidized Till C872B Oxidized Till C872C Unoxidized Till C873E Empress Samples collected amiually A2-19 A2-20 PARAMETERS Responsible Agency: Saskatchewan Environment and Resource ManagementI Data Collected by: SaskPower ESQt ADAT* Code Parameter Analytical method Sampling Frequency Sution No.: Piezometers 10101 Alkalinity-lol Pot-Titration A 13105 Alumimnn-Diss AA-DiiBct 3« 33104 Aisenk-Diss nameless AA A S6I04 Barium-Diss AA-Direet A 06201 BicartMiutes Calculated A 6106 Boron-Diss Colourimetiy 3** 48102 Cadmium- Diss AA-Solvent Extract (MIBK) A 20103 Calcium-Diss AA-Direct A 06301 Cartionates Calculated A 17203 Chloride- Diss Colourimetry A 24104 Chromium- Diss AA-Diiecf A 27102 Cobah-Diss AA-Solvent Extract (MIBK) A 02011 Colour Comparator A 02041 Conductivity Conductivity Meter 3 29105 Copper-Diss AA-Solvent Extract (MIBK) A 09103 Fluoride-Diss Specific Ion Electrode A 26104 Iron-Diss AA-Direcl A 82103 Lead- Diss AA-Solvent Extract (MIBK) A 12102 Magnesium-Diss AA-Direct A 25104 Manganese-Diss AA-Dinct A 80111 Meicuiy-Diss Flameless AA A 42102 10301 Molybdenum- Diss pH AA-Solvent Extract (N-Butyl acetate) Electrometric A 3»» 19103 Potassium-Diss Flame Photometry A 34105 Selenium- Diss Hydride generation A 14102 Silica-Diss Colourimetry A 11103 Sodium- Diss Flame Photometry A 38101 Strontium- Diss AA-Direct 3- 16306 Sulphate-Diss Colourimetry 3- 10451 TDS Gravimetric 3- 92111 Uianium-Diss Fluorometry 3- 23104 Vanadium- Diss AA-Direct A 97025 Water Level 4 30105 Zinc - Diss. AA-Solvent Extract (MIBK) A ' Computer storage arvj retrieval system -Saskatchewan Environment and Resource Management. No zinc or iron for Piezometers C531 to C538. SYMBOLS: AA-Atomic Absorption A Annually "Analyze annually for these Piezometers Nos. AA - solvent exract (MIBK) - sample acidified and extracted with Methyl Isobutyl Ketone. 4-4 times/year 3-3 times/year. A2-21 Ambient Air-Quality Monitoring Responsible Agency: Saskatchewan Environment and Resource Management Data Collected by: SaskPower No. On Map Location Parameters Reporting Frequency 1 Coronach (Discontinued) Sulphur Dioxide Continuous monitoring with hourly averages as summary statistics. Total Suspended Particulate 24-hour samples on 6-day cycle, corresponding to the national air pollution surveillance sampling schedule. 2 International Boundary Sulphur Dioxide Continuous monitoring with hourly averages as summary statistics. Total Suspended Particulate 24-hour samples on 6-day cycle, corresponding to the national air pollution surveillance sampling schedule. 3 PRPS Site* Wind Speed and Direction Continuous monitoring with hourly averages as summary statistics METHODS 1 Sulphur Dioxide Saskatchewan Environment and Resource Management Pulsed fluorescence Total Suspended Particulate Saskatchewan Environment and Resource Management High Volume Method *This station operated by SaskPower. The data is downloaded by Environment Canada. A2-22 CANADA UNITED STATES 0 5 10 15 KILOMETRES I 1 ^-1 U AMBIENT AIR-QUALITY MONITORING (CANADA) A2-23 POPLAR RIVER COOPERATIVE MONITORING ARRANGEMENT TECHNICAL MONITORING SCHEDULES 2000 UNITED STATES A2-24 STREAMFLOW MONITORING Responsible Agency: U.S. Geological Survey 1 No. on Map Station Number Station Name 1* 06178000 (11 AE008) Poplar River at International Boundary 2* 06178500 (11 AE003) East Poplar River at International Boundary International Gauging Station A2-25 — - ••■■■ - •-■■-■ ■■■•■ ■■ ■-■ , ■ ,,„„- .' ■ . ,' - ,.,„„., .. -... , , .-,.,■'...- \ ' ■ " /J \ x^ Fife yy \ V "0 \_ Rockglen ^ ^ ^~\^^ \ • V \l ^^^^^^^ ^^^ Coronach 1 \ A^A X X \^^ / Cookson \ \\j\ Reservoir ) CANADA X^^ ^^\^^^ \ \2 {\ .J "^~*"^ UNITED STATES ^'\Coa\ e^V-^ \ ^^X,__^-.,eoWe \\ Scobey i i II 0 5 10 15 KILOMETRES 1 1 1 1 0 5 10 MILES ,. . , .,^., HYDROMETRIC GAUGING STATIONS (UNITED STATES) A2-26 SURFACE-WATER-QUALITY MONITORING - Station Location Responsible Agency: U.S. Geological Survey | No. On Map uses Station No. STATION NAME 1 06178000 Poplar River at International Boundary 2 06178500 East Poplar River at International Boundary PARAMETERS Annual Sampling Frequency | Analytical Code Parameter Analytical Method Sitel Site 2 29801 Alkalinity - lab Elect. Titration 5 6 01106 Aluminum - diss ICP 2 2 00608 Ammonia - diss Colorimetric 5 6 00625 Ammonia +Org N-tot Colorimetric 5 6 01000 Arsenic - diss AA, hydride 2 2 01002 Arsenic - tot AA, hydride I 1 01010 Beryllium - diss AA,name . 2 2 01012 Beryllium - tot/rec AA, flame 1 1 01020 Boron - diss ICP 5 6 01025 Cadmium - diss AA,CT 2 2 01027 Cadmium - tot/rec AA, GF - Persulftte 1 2 00915 Calcium - diss AA, flame 5 6 00680 Carbon - tot Org Wet Oxidation 1 1 00940 Chloride - diss IC 5 6 01030 Chromium - diss AA,GF 2 2 01034 Chromium - tot/rec /^GF 1 2 00080 Color Electrometric, visual 5 6 00095 Conductivity Wheatstone Bridge 5 C 01040 Copper - diss AA, GF 2 2 01042 Copper - tot/rec AA, GF - Persulfate 1 2 00061 Discharge - inst Direct measurement 5 6 00950 Fluoride - diss Colormetric, ISE 5 6 01046 Iron - diss AA, flame 5 6 01045 Iron - tot/rec AA, flame 1 2 01049 Lead - diss AA,GF 2 2 01051 Lead - tot/rec AA, GF - Persul&te 1 2 00925 Magnesium - diss AA, flame 5 2 01056 Manganese - diss AA, flame 2 2 01055 Manganese - tot/rec AA, flame 1 2 01065 Nickel -diss AA,GF 2 2 01067 Nickel - tot/rec AA, GF - Persulftte 1 2 00613 Nitrite - diss Colorimetric 5 6 00631 Nitrate + Ninite - diss Colorimetric 5 6 00300 Oxygen-diss Oxygen membrane 5 6 00400 pH Electrometric 5 6 00671 Phos, Ortho-diss Colorimetric 5 6 00665 Phosphorous - tot Colorimetric 5 6 00935 Potassium - diss AA, flame 5 6 00931 SAR Calculated 5 6 80154 Sediment - cone. Filtration-Gravimetric 5 6 80155 Sediment - load Calculated 5 6 01145 Selenium • diss AA, hydride 2 2 01147 Selenium tot AA, hydride 1 1 00955 Silica -diss Colorimenic 5 6 00930 Sodium - diss AA, flame 5 6 00945 Sulphate - diss IC 5 6 70301 Total Dissolved Solids Calculated 5 6 00010 Temp Water Stem Thermometer 5 6 00020 Temp Air Stem Thermometer 5 6 00076 Turbidity Nephelometric 5 6 22703 Uranium - diss LIP MC 01090 Zinc - diss AA, flame 2 2 01092 Zinc - tot/rec AA, flame 1 2 Abbreviations: C - continuous; MC - monthly composite; GF - graphite furnace; AA - atomic absorption; tot/rec - total recoverable; diss - dissolved; AE - atomic emission; ICP - inductively coupled plasma; IC - ion exchange chromatography; LIP - Laser Induced Phosphorescence; Org - organic A2-27 ...'»• .. 0 5 10 15 KILOMETRES n ^ ^ 0 5 10 MILES SURFACE-WATER-QUALITY MONITORING STATIONS (UNITED STATES) A2-28 GROUND-WATER-QUALITY MONITORING - Station Locations Responsible Agency: Montana Bureau of Mines and Geology Map Number WeU Location Total Depth (a) (m) Casing Diameter (cm) Aquifer Perforation Zone (m) 7 37N47E12BBBB 44.1 10.2 Hart Coal 39-44 16 37N46E3ABAB 25.5 10.2 Fort Union 23-25 24 37N48E5AB 9.6 10.2 Alluvium 9.2-9.6 Parameters | Storet ** Parameter Analytical Method Sampling Frequency Station No. Code 00440 Bicarbonates Electrometric Titration Sample collection is annually for 01020 Boron-diss Emission Plasma, ICP all locations identified above. 00915 Calcium Emission Plasma 00445 Cartwnates Electrometric Titration The analytical method descriptions 00940 Chloride Ion Chromatography are those of the Montana Bureau of 00095 Conductivity Wheatstone Bridge Mines and Geology Laboratory where 01040 Copper-diss Emission Plasma, ICP the samples are analysed. 00950 Fluoride Ion Chromatography 01046 Irondiss Emission Plasma, ICP 01049 Lead -diss Emission Plasma, ICP 01130 Lithium-diss Emission Plasma, ICP 00925 Magnesium Emission Plasma, ICP 01056 Manganese-diss Emission Plasma, ICP 01060 Molybdenum Emission Plasma, ICP-MS 00630 Nitrate Ion Chromatography 00400 pH Electrometric 00935 Potassium Emission Plasma, ICP 01145 Selenium-diss ICP-MS 00955 Silica Emission Plasma, ICP-MS 00930 Sodium Emission Plasma, ICP 01080 Strontium-diss Emission Plasma, ICP 00445 Sulphate Ion Chromatography 00190 Zinc -diss Emission Plasma, ICP 70301 TDS Calculated SYMBOLS: •* - Computer storage and retrieval system - EPA ICP - MS - Inductively Coupled Plasma - Mass Spectrometry ICP - Inductively Coupled Plasma Unit A2-29 CANADA UNITED STATES Scobey 0 5 10 15 KILOMETRES I ' r-" h GROUND-WATER-QUALITY MONITORING (UNITED STATES) A2-30 GROUND-WATER LEVELS TO MONITOR POTENTIAL DRAWDOWN DUE TO COAL-SEAM DEWATERING Responsible Agency: Montana Bureau of Mines and Geology | No. on Map Sampling 5,6,7,8,9,10,11,13,16,17,19,22,23,24 Determine water levels quarterly A2-31 10 15 KILOMETRES GROUND-WATER PIEZOMETERS TO MONITOR POTENTIAL DRAWDOWN DUE TO COAL-SEAM DEWATERING A2-32 ANNEX 3 RECOMMENDED FLOW APPORTIONMENT IN THE POPLAR RIVER BASIN BY THE INTERNATIONAL SOURIS-RED RIVERS ENGINEERING BOARD, POPLAR RIVER TASK FORCE ( 1 976) A3-1 ♦RECOMMENDED FLOW APPORTIONMENT IN THE POPLAR RIVER BASIN The aggregate natural flow of all streams and tributaries in the Poplar River Basin crossing the International Boundary shall be divided equally between Canada and the United States subject to the following conditions: The total natural flow of the West Fork Poplar River and all its tributaries crossing the International Boimdary shall be divided equally between Canada and the United States but the flow at the International Boundary in each tributary shall not be depleted by more than 60 percent of its natural flow. The total natural flow of all remaining streams and tributaries in the Poplar River Basin crossing the International Boundary shall be divided equally between Canada and the United States. Specific conditions of this division are as follows: (a) Canada shall deliver to the United States a minimum of 60 percent of the natural flow of the Middle Fork Poplar River at the International Boimdary, as determined below the confluence of Goose Creek and Middle Fork. (b) The delivery of water from Canada to the United States on the East Poplar River shall be determined on or about the first day of June of each year as follows: (i) When the total natural flow of the Middle Fork Poplar River, as determined below the confluence of Goose Creek, during the immediately preceding March 1st to May 31st period does not exceed 4,690 cubic decameters (3,800 acre-feet), then a continuous minimum flow of 0.028 cubic metres per second (1.0 cubic foot per second) shall be delivered to the United States on the East Poplar River at the International Boundary throughout the succeeding 12 month period commencing June 1st. In addition, a volume of 370 cubic decameters (300 acre- feet) shall be delivered to the United States upon demand at any time during the 12 month period commencing June 1st. (ii) When the total natural flow of the Middle Fork Poplar River, as determined below the confluence of Goose Creek, during the immediately preceding March 1st to May 31st period is greater than 4,690 cubic decameters (3,800 acre- feet), but does not exceed 9,250 cubic decameters (7,500 acre-feet), Canada-United States, 1976, Joint studies for flow apportionment. Poplar River Basin, Montana-Saskatchewan: Main Rq>ort, International Souris-Red Rivers Board, Poplar River Task Force, 43 pp. A3-2 then a continuous minimum flow of 0.057 cubic metres per second (2.0 cubic feet per second) shall be delivered to the United States on the East Poplar River at the International Boundary during the succeeding period June 1st through August 31st. A minimum delivery of 0.028 cubic metres per second (1.0 cubic feet per second) shall then be maintained from September 1st through to May 3 1 St of the following year. In addition, a volume of 6 1 7 cubic decameters (500 acre-feet) shall be delivered to the United States upon demand at any time during the 12-month period commencing June 1st. (iii) When the total natural flow of the Middle Fork Poplar River, as determined below the confluence of Goose Creek, during the immediately preceding March 1st to May 31st period is greater than 9,250 cubic decameters (7,500 acre-feet), but does not exceed 14,800 cubic decameters (12,000 acre-feet), then a continuous minimum flow of 0.085 cubic metres per second (3.0 cubic feet per second) shall be delivered to the United States on the East Poplar River at the International Boundary during the succeeding period Jime 1st through August 31st. A minimum delivery of 0.057 cubic metres per second (2.0 cubic feet per second) shall then be maintained from September 1st through to May 31st of the following year. In addition, a volume of 617 cubic decameters (500 acre-feet) shall be delivered to the United States upon demand at any time during the 12 month period commencing Jime 1st. (iv) When the total natural flow of the Middle Fork Poplar, as determined below the confluence of Goose Creek, during the immediately preceding March 1st to May 31st period exceeds 14,800 cubic decameters (12,000 acre-feet) then a continuous minimum flow of 0.085 cubic metres per second (3.0 cubic feet per second) shall be delivered to the United States on the East Poplar River at the International Boundary during the succeeding period June 1st through August 31st. A minimum delivery of 0.057 cubic metres per second (2.0 cubic feet per second) shall then be maintained from September 1st through to May 31st of the following year. In addition, a volume of 1,230 cubic decameters (1,000 acre-feet) shall be delivered to the United States upon demand at any time during the 12-month period commencing Jime 1st. (c) The natural flow at the International Boimdary in each of the remaining individual tributaries shall not be depleted by more than 60 percent of its natural flow. A3-3 The natural flow and division periods for apportionment purposes shall be determined, unless otherwise specified, for periods of time commensurate with the uses and requirements of both coimtries. A3-4 ANNEX 4 METRIC CONVERSION FACTORS A4-1 METRIC CONVERSION FACTORS Ac = 4,047 m' = 0.04047 ha ac-ft = 1,233.5 m- = 1.2335 dam' C = 5/9(F''-32) cm = 0.3937 in. cm^ = 0.155 in^ dam = 1,000 m' = 0.8107 ac-ft ft-' = 28.3171 X lOV ha = 10,000 m^ = 2.471 ac hm = 100 m = 328.08 ft hm' = lxl0*m' I.gpm = 0.0758 L/s in = 2.54 cm kg = 2.20462 lb= 1.1x10' tons km = 0.62137 miles km^ = 0.3861 mi^ L = 0.3532 ft' = 0.21997 I. gal = 0.26420 U.S. gal L/s = 0.035 cfs = 13.193 I.gpm = 15.848 U.S. gpm m = 3.2808 ft m^ = 10.765 ft^ m' = 1,000 L = 35.3144 ft' = 219.97 I. gal= 264.2 U.S. g raVs = 35.314 cfs mm = 0.00328 ft tonne = 1,000 kg = 1.1023 ton (short) U.S. gpm = 0.0631 L/s For Air Sai tnples ppm = 100 pphm = 1000 x (Molecular Weight of substance/24.45) mg/m' A4-2