Q3 WQ Water Quality Monitoring Report. Covering Waste Management Permit-7008

Transcription

1 Q3 WQ Water Quality Monitoring Report Covering Waste Management Permit-7008

2 Quinsam Coal 3rd Quarter Report October - December 2018 TABLE OF CONTENTS Table of Contents... 1 Summary of Events for the Third Quarter: Settling Ponds Water Quantity Water Quality Lakes Streams and Rivers Groundwater Applications for Permit Amendment and Long Lake Seep Mitigation Plan ETRC Meeting Conclusion Appendix I Tables 1-73 Appendix II Long Lake Seep Passive Treatment System & Loading Assessment 1

3 Quinsam Coal 3rd Quarter Report October - December 2018 SUMMARY OF EVENTS FOR THE THIRD QUARTER: Quinsam Coal Corporation has been in full production since mining commenced on September 28 th, 2017 from 2-North Mine. All mining production and coal processing has been carried forward through this quarter with mining commencing in the 7-South mine on December 18, All environmental monitoring obligations as per the Effluent Permit 7008 (PE-7008) were completed. This quarter there were 5 permit non-compliances (PNC) for missed analyses to report under PE These occurred at Settling Pond 4 (WD), Settling Pond 1 (SPD), Stream 1 7-South (7S) and Lower Wetland Outlet (LWO). The PNC results were attributed to frozen conditions during December 22 and 23 at SPD and December 24 at WD; where Total suspended solid (TSS) samples were not collected due to the composite sampler freezing. The 7S and LWO samples were collected and sent to the laboratory for analysis. There was an error on the chain of custody and the samples were placed on hold. Quinsam inquired about the samples but it was overlooked at the laboratory due to the holiday break. Once work commenced after the holidays QCC inquired again but the samples had been discarded. Discharge from WD & Biocell Downstream (BDS) was collected for 96-Hr LC- 50 (100% Survival) Rainbow Trout bioassays. These samples were collected on October 26 th and November 9 th, Each sample passed with 100 % survival rates. Toxicity sampling at 7SSD and 7S did not occur this quarter due to there being zero discharge from 7SSD. Precipitation at the mine site for this period was measured as 365 mm with a lower accumulation occurring in fall 2017 compared to last year s fall 2016 period of 743.8mm. During the 3rd quarter (Fall 2016), the receiving environment monitoring program for both lakes and river/stream stations was completed as well as all other environmental sampling pertaining to permit PE

4 Quinsam Coal 3rd Quarter Report October - December 2018 The fall flush receiving environment monitoring program followed the 5 samples in 30 days sampling period, spanning from October 11 th through November 16 th, during which 206 mm of precipitation was received. The sampling regime was initiated slightly later than typical fall 5 in 30 periods to ensure complete fall turnover in the lakes and to observe river water quality when flows are highest (fall flush). All parameters requested in accordance with the authorization to bypass the works (renewed August 2017) have been sampled following the specified frequency and procedures. The treatment system has not been functioning since December 27 th, 2017 resulting from pump failure at the Influent site where water is pumped from the 2-South mine pool into the treatment system. This has not been replaced due to Quinsam s intentions of drilling and grouting the seeps. This is explained in detail in the loading report. For this quarter, each data set at BDS was compared to the applicable permit limits for SPD discharge; results are displayed in Appendix I, Table 15. For a comprehensive review of the Long Lake Seep Treatment System (LLST) system performance please refer to Appendix II. 1. SETTLING PONDS 1.1 WATER QUANTITY Discharge commenced on November 6 th, 2017 from Settling Pond 1. The total amount of water released was 253,593m 3 at an average flow rate of m 3 /s. The maximum flow measured was m 3 /s on November 14 th during a time when precipitation and pumping to SP1 was at or near maximum. Daily maximum decant rates were above 0.046m 3 /s for 35 out of 92 days. These 35 days indicated the need to analyze daily composite TSS samples. Settling Pond 4 discharged 796,024m 3 water with an average rate of m 3 /s this quarter. The maximum flow rate observed was measured as m 3 /s occurring on October 19 th, The setting pond discharged continuously throughout the quarter with maximum daily decant above 0.054m3/s on 84 out of 92 days requiring 84 daily composite TSS samples. 3

5 Quinsam Coal 3rd Quarter Report October - December SSD did not discharge this quarter all water quality samples were collected from the ponded water with no discharge occurring. 1.2 WATER QUALITY All other measured water quality parameters were below the required permit limits for all three settling ponds. Dewatering of the 5-South Mine into SPD occurred from September 25 th through to mid- December where the pipeline was redirected to the 2-North mine pool. During this time all parameters at SPD were within permit limits. Weekly sulphate concentrations ranged from 134 mg/l to 259 mg/l and averaged 193 mg/l. Concentrations of total and dissolved iron displayed an increasing trend during November and December s sampling events. With dissolved iron increasing near permit limits resulting in mg/l. This may be attributed to the 5-South Mine water or the increasing flow rates in the settling pond preceding the low pond water levels causing the circulation and oxidation of the iron rich bottom sediment within the settling pond. At WD, weekly sulphate concentrations ranged from 260 mg/l to 573 mg/l averaging 409 mg/l. Concentrations of dissolved iron remained below permit limits averaging mg/l for the quarter. All other parameters remained in low concentrations. 4

6 Quinsam Coal 3rd Quarter Report October - December RECEIVING ENVIRONMENTS 2.1 LAKES Lake sampling commenced on October 19 th following the 5 in 30 program schedule; which included No Name Lake (NNL), Long Lake (LLM), Middle Quinsam Lake (MQL) and Lower Quinsam Lake (LQL). Appendix I, Table 2 summarizes the parameters above provincial water quality guidelines for receiving environments during fall. Appendix I, Table 44 displays the depth profiling and field results with Tables 45 through 60 displaying the water quality results compared to guidelines. Noteworthy observations resulting from the lake monitoring program include: The water quality at most lakes remained below guideline levels during the fall sampling event; exceedances occurred at NNL, LLM & LQL. NNL 9 to 12 metres experienced low ph (<6.5) with minimum ph values ranging between 6.20 to 6.47 at depth during 3 out of 5 weekly sampling events. NNL1 metre experienced elevated zinc during 1 out of 5 weekly sampling events. All lakes except LLM had higher hypolimnetic DO levels, decreasing the concentrations of iron and manganese at the sediment water interface. LLM at depths 15 to 20 metres experienced low hypolimnetic DO with elevated manganese (Mn) at 1mb. LLM 1mb resulted in elevated maximum and average Mn levels during fall compared to WQG maximum and average. Sulphate remained below the average WQG of (128 mg/l) in all lakes. LLM 1mb average sulphate result was 127 mg/l. LQL and MQL have average sulphate concentrations of ~ 21 mg/l and 30 mg/l, respectively throughout the lakes during fall, LQL 1mb dissolved iron concentrations declined compared to previous years during fall sampling with one sample at max-wqg of 0.35 resulting in mg/l. 5

7 Quinsam Coal 3rd Quarter Report October - December STREAMS AND RIVERS The 5 samples in 30 days receiving environment program at river and stream sites took place on October 11 th through November 7 th, Appendix I, Tables 29 through 42 display water quality results of this program compared to water quality guidelines for the Middle Quinsam Lake Sub-basin and Iron River stations. Monitoring stations captured within the Middle Quinsam Lake sub-basin include: Middle Quinsam Lake Inlet (WA), Middle Quinsam Lake Outlet (WB), No Name Lake Outlet (NNO), Long Lake Outlet (LLO), Quinsam River Downstream 1 (QRDS1), 7-South Quinsam River (7SQR), Lower Wetland Outlet (LWO), and Quinsam River downstream of the confluence with Iron River (IRQR). Monitoring stations on the Iron River include: Iron River Upstream of Mining Operations (IR1), Iron River Upstream of future 7-South Area 5 development (IR6), and Iron River above the confluence with Quinsam River (IR8). Baseline monitoring for the No Name Lake connector stream to Long Lake Inlet include sites: Downstream of the discharge from the 3South channel on the connector stream (3SDS) Tributary to the connector stream, downstream of 3SDS (3SDST) Downstream of 3SDS and 3SDST on the connector stream (3SDS3) 6

8 Quinsam Coal 3rd Quarter Report October - December 2018 While monitoring location LLE is considered a receiving environment station (for water quality evaluation purposes) it is important to note that this location represents the uppermost extent of an initial dilution zone for the South water management system discharge into Long Lake. Noteworthy observations resulting from the Middle Quinsam Lake Sub-basin river/stream and Iron River monitoring program include: The water quality at most stations remained below guideline levels during the fall sampling event; exceedances for maximum Al-D (0.1 mg/l) occurred at LWO, 3SDS, IR1 & IR6. Maximum and average Al-D guidelines of 0.1 and 0.05 mg/l were exceeded at IR1 & IR6. Al-D becomes elevated naturally in the receiving environment and is associated with increased surface runoff and higher flows. Cd-D was elevated above maximum-wqg of mg/l at IR1 on 2/5 weekly sampling events. As-T was elevated at IR6 and IR8 during the first week of fall sampling when flows were lowest. SO4-D concentrations remain elevated for 7 out of 13 weeks at LLE while iron continues to remain below the total and dissolved guidelines. LLSM experienced elevated iron concentrations during initiation of discharge on November 21. A summary of receiving environment guideline observations for river/stream stations is provided in Appendix I, Table 2. 7

9 Quinsam Coal 3rd Quarter Report October - December GROUNDWATER This quarter, 23 groundwater wells, 2 underground sumps, and 4 dewatering wells were monitored. Table 3 below, provides details on the well and sump designations and locations. Exsitu groundwater wells are compared to the Contaminated Sites Regulations for Protection of Aquatic Life (CSW-AW). Exceedances are displayed in Appendix I, Table 3 with analytical results presented in Appendix 1, Tables 61 through 63. Arsenic, hydrogen sulphide as H 2 S and chloride are those parameters that repeatedly exceed the CSW-AW. These parameters are naturally elevated within the groundwater due to the regional geology of the area. Quinsam monitors trends for arsenic, sulphate and H2S in ex-situ wells and compares them to models used and source terms developed for certain areas. This is discussed in detail in the annual report due to the frequency of monitoring for groundwater wells and expected travel time of groundwater movement. TABLE 3: LIST OF GROUNDWATER WELLS & UNDERGROUND SUMPS MONITORED IN QUARTER 3 Area Ex-situ In-situ 7- South QU0813 (A & B) & QU0810 QU1410, 1Mains7-South (Sump) 5-South 5SMW River Barrier Pillar 2-NorthBelow the Wash Plant 2-North QU1109 S & QU1105 (D & S) MW001 (S&D) & MW006 (S &D) QU0821 (GS & GD) & QU1010 (S & D) QU1109 M 5Mains #2, 1Mains 2-North & 6Mains 2-North (Sump) & QU10-13 D 4-South QU10-09 (S & D) 2-3 South MW1223 & MW1224 MW002, MW004 & QU1111 8

10 Quinsam Coal 3rd Quarter Report October - December APPLICATIONS FOR PERMIT AMENDMENT AND LONG LAKE SEEP MITIGATION PLAN During Q3 a report entitled Long Lake Seep as an Authorized Discharge Point & Long Lake Seep Passive Treatment System Demonstration System Overview and Long Term Plan was submitted on November 30 th, As per the requirements of the Authorization to Bypass Works Section 3.10 of PE-7008, letter dated August 25th, This bypass was approved pursuant to section 16 of the Environmental Management Act. The following requests were made: Provide a final report on the demonstration phase and using the results of that report formulate the plan for the long term treatment system Incorporate, through a permit amendment, the final discharge from the treatment system into the Effluent Permit (versus the temporary authorization to bypass the works) Incorporate, through a permit amendment, the Long Lake seep as an authorized discharge point. This will be submitted on December 31, An effluent permit amendment application was submitted on December 28 th, 2017 that will include a site wide revision of the effluent permit. The mitigation plan for the Long Lake Seep involves a drilling and grouting program intended to cease the flow of seepage from the mine pool. The method will involve drilling into the barrier pillar and injecting a grout into the pillar where seepage occurs. If this method is successful then Quinsam does not intend to carry on with the full scale treatment system. The timeline to determine the success of the grouting program is undetermined. Quinsam anticipates that drilling and grouting may be carried out several times before it is deemed successfully mitigated. The effectiveness of the drilling and grouting program will be monitored and continue until no further seepage is observed. This program is intended to commence in February

11 Quinsam Coal 3rd Quarter Report October - December ETRC MEETING The annual ETRC agency meeting was held on November 23rd with the stakeholder meeting held on December 5th, The objective of the meeting was to review the Quinsam Coal Corporation s 2016/17 Annual Monitoring Report, provide updates on mine status and environmental matters, identify issues and agree on possible recommendations to be made to the Director of Environmental Protection, where warranted. 6. CONCLUSION Quinsam Coal is dedicated to reducing the environmental impacts as a result of mining on the environment. Overall, the results of the monitoring data indicate that the water quality at the site and in the receiving environment remains in good condition. All parameters measured at the Settling Ponds remained below their respective permit limits with minimal parameters observed in the receiving environment, to be outside the British Columbia Provincial Water Quality Guidelines for Protection of Aquatic Life. This exemplifies that the environmental management practices employed by Quinsam Coal are effective in reducing environmental impacts to the surrounding environment. In closing, we trust the information presented in this report satisfies the conditions under Effluent Permit PE Please contact the Quinsam Coal Environmental Department at the undersigned if you have any questions or comments. Best Regards, Kathleen Russell BSc. Environmental Coordinator Quinsam Coal Corporation Ph: (250) ext kar@quinsam.com 10

12 APPENDIX I

13 List of Tables Table 1 List of Acronyms Table 2 Q3 Summary of Permit Limit Exceedances and Non-compliances (October 1 - December 2017) Table 3 Exceedances in Ex-Situ Groundwater Wells Table 4 Weekly / Monthly Sulphate (SO4-D) and Total Suspended Solids (TSS) Table 5 Settling Pond # 1 Table 6 2 South Inflow into 2-South Pit Table 7 2 South Pit In Pit Water Cover Table 8 2 South Culvert Table 9 South Pit Main Sump Water Table 10 Influent for biocell Table 11 BCR Effluent Table 12 Sulphide Polishing Cell Effluent Table 13 Aerobic Lagoon Effluent Table 14 Settling Pond Effluent Table 15 Biocell Downstream Table Adit Pit Table 17 Long Lake Entry from South Water Management Table 18 Seep into Long Lake Table 19 Long Lake Middle Seep Table 20 7 South Portal Sump Table 21 Settling Pond at 7S Table 22 2-N-Portal Sump Table 23 2 North Pit Sump Table 24 Settling Pond #4 Table 25 North Pit Culvert Table 26 South Pit Culvert Table 27 4 South Lower Table 28 South Dyke Sump Table 29 Middle Quinsam Lake Inlet Table 30 Middle Quinsam Lake Outlet Table 31 Long Lake Outlet Table 32 Quinsam River Downstream 1 Table 33 No Name Lake Outlet Table 34 3S Downstream Table 35 3 South Downstream Site - Tributary Table 36 3 South Downstream Site 3

14 Table 37 Lower Wetland Outlet (7S) Table 38 7 South Quinsam River Table 39 Iron River Upstream Site 1 Table 40 Iron River Site 6 Table 41 Iron River Site 8 Table 42 Iron River & Quinsam River Table 43 Stream 1 7S Table 44 Depth Profiling- Lake Table 45 No Name Lake 1M Table 46 No Name Lake 4M Table 47 No Name Lake 9M Table 48 No Name Lake 1M from Bottom Table 49 Long Lake Middle 1M Table 50 Long Lake Middle 4M Table 51 Long Lake Middle 9M Table 52 Long Lake Middle 1M From Bottom Table 53 Middle Quinsam Lake 1M Table 54 Middle Quinsam Lake 4M Table 55 Middle Quinsam Lake 9M Table 56 Middle Quinsam Lake 1M from Bottom Table 57 Lower Quinsam Lake 1M Table 58 Lower Quinsam Lake 4M Table 59 Lower Quinsam Lake 9M Table 60 Lower Quinsam Lake 1M from Bottom Table 61 Groundwater Table 62 Groundwater Table 63 Groundwater Table 64 Groundwater Table 65 Daily Total Suspended Solid Samples Table 66 Discharge from Settling Pond #1 (SPD) Table 67 Discharge from Settling Pond #4 (WD) Table 68 Weekly ph / Conductivity Table 69 Weekly ph / Conductivity Table 70 Weekly ph / Conductivity Table 71 Weekly ph / Conductivity Table 72 Weekly ph / Conductivity Table 73 Relative Percent Difference (RPD) Greater than 20% Table 74 Precipitation

15 Table1 List of Acronyms P PNC WQG WQG-Max WQG-Average CSR-AW In-Situ Ex-Situ 1mb m ND NF Permit Limit Exceedance Permit Non-compliance British Columbia Water Quality Guidelines for Protection of Aquatic Life Exceedances Bolded Blue Exceedances Bolded Green Contaminated Sites Regulations For Protection of Freshwater Aquatic Life Within the mine pool Outside of the Mine Pool 1 metre off bottom metre No Discharge No Flow Station Type P SW MW EFF SP R Permitted Discharge Location Surface water Mine water Effluent Settling Pond Replicate Sample

16 Table 2 Q3 SUMMARY OF PERMIT LIMIT EXCEEDANCES & PERMIT NON-COMPLIANCES (October 1 - December 2017) EMS ID & Site Name Site Code & Depth Parameter (mg/l, ph units) Permit Requirement Result Date Permit Number of Events PNC Occurred E Settling Pond #1 SPD mg/l Composite sample No Result Dec. 22 & 23 PNC E Settling Pond #4 WD mg/l Composite sample No Result Dec. 24 PNC 2 samples. Frozen conditions resulted samples not being collected. Composite sample froze. 1 samples. Frozen conditions resulted samples not being collected. Composite sample froze. E Stream 1 7S 7S mg/l Metals (T) & (D), Alkalinity, Acidity, TSS, SO4-D & DOC No Result Oct.24 PNC Metals (T) & (D), E Lower Wetland Outlet LWO mg/l Alkalinity, Acidity, TSS & No Results Oct.24 PNC SO4-D SUMMARY OF WATER QUALITY GUIDELINE OBSERVATIONS AT RECEIVING MONITORING LOCATIONS EMS ID & Site Name Site Code & Depth Parameter (mg/l, ph units) E No Name Lake (NNL) NNL metres ph-f monthly sample. Sample was collected and sent to the laboratory. Sample was not analyzed and was disposed of. Laboratory & QCC error. 1 /5 weekly samples. Sample was collected and sent to the laboratory. Sample was not analyzed and was disposed of. Laboratory & QCC error. Guideline Limit Result Date Guideline Sampling Events Exceeding Guideline Oct. 19, 25 & Nov. 2 Min (10/61) Depths profiled during fall E No Name Lake (NNL) NNL 1m Zn-T Nov. 16 M 1/5 weekly samples E Long Lake Middle (LLM) LLM 1MB Mn-T to 1.63 Fall 5 in 30 M 5/5 Fall 5 in 30 E Long Lake Middle (LLM) LLM 1MB Mn-T Fall 5 in 30 A 5/5 Fall 5 in 30 E Lower Quinsam Lake (LQL) E Long Lake Entry (LLE) - Last wetland South Water Management flows into prior to LQL 1MB Fe-D Oct. 20 M 1/5 weekly samples LLE SO4-D* 128 >128 Fall A Rolling average resulted in 7 out of 13 weeks where results were above Oct.18 M 1/5 weekly samples E Quinsam River Upstream of Mining Operations (IR1) IR1 Al-D Fall 5 in 30 A 5/5 Fall 5 in 30 Cd-D & Oct.18 & 23 M 2/5 Fall 5 in 30 As-T Oct.12 M 1/5 Fall 5 in 30 E Iron River Upstream of 7SA5 (IR6) IR6 Al-D Fall 5 in 30 M 1/5 Fall 5 in Fall 5 in 30 A 5/5 Fall 5 in 30 E Iron River Upstream of 7SA5 (IR8) IR8 As-T Oct.12 M 1/5 Fall 5 in 30 E Lower Wetland Outlet (LWO) LWO Al-D , & Oct. 30 & Nov. 7th & 17th M 3/5 Fall 5 in 30 Baseline monitoring for 3 South discharge, downstream on No Name Lake connector channel 3SDS Al-D Nov.1 M 1/5 Fall 5 in 30 E Long Lake Seep LLSM Fe-T Nov. 21 M Monthly sample Fe-D Nov. 21 M Monthly sample For all Middle Quinsam Lake Sub-basin and Iron River results background hardness of 30 mg/l was used to calculate those parameters that are hardness dependent. *SO4 at LLE was calculated using a rolling average.

17 Table 3 Exceedances in Ex-Situ Groundwater Wells Contaminated Sites Regulations -Freshwater Aquatic Life ( CSR-AW ) Well ID: QU0821GS QU0821GD QU1010S QU1010D QU1109S QU1105S QU1105D QU0813B QU1009S QU1009D Parameter (mg/l) Date 19-Dec Dec-17 6-Dec-17 6-Dec Dec-17 6-Dec-17 6-Dec Dec Dec Dec-17 CSR-AW Cl-D As-D H2SEquiv

18 Table 4 Weekly / Monthly Sulphate (SO4-D) and Total Suspended Solids (TSS) EMS ID: E E E E E E From To SPD SPEFF BDS SPC LLE Rolling Avg LLO Rolling Avg WD WC SO4-D 2-Oct-17 8-Oct Oct Oct Oct Oct Oct Oct Oct-17 5-Nov Nov Nov Nov Nov Nov Nov Nov-17 3-Dec Dec Dec Dec Dec Dec Dec Dec Dec Average Minimum Maximum EMS ID: E E E E E E From To SPD SPEFF BDS SPC LLE LLO WD WC TSS 2-Oct-17 8-Oct-17 <4.0 <4.0 <4.0 <4.0 <4.0 9-Oct Oct-17 <4.0 <4.0 < Oct Oct-17 <4.0 <4.0 <4.0 <4.0 < Oct Oct-17 <4.0 <4.0 < Oct-17 5-Nov-17 <4.0 <4.0 <4.0 <4.0 6-Nov Nov-17 <4.0 <4.0 <4.0 < Nov Nov-17 <4.0 <4.0 < < Nov Nov-17 <4.0 < Nov-17 3-Dec-17 <4.0 <4.0 <4.0 <4.0 <4.0 4-Dec Dec-17 <4.0 <4.0 <4.0 <4.0 < Dec Dec-17 < <4.0 <4.0 < Dec Dec-17 <4.0 < Dec Dec <4.0 <4.0 <4.0 Average Minimum <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 Maximum < < <4.0 <4.0

19 Table 5 EMS ID E Stn.Name Settling Pond # 1 Stn.Code Permit Limit- SPD SPD SPD SPD SPD Date Units South (P) 3-Oct-17 7-Nov Nov Nov Dec-17 TSS mg/l 25 <4.0 < < Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 < Hard-T mg/l Ag-D mg/l < < < < < Ag-T mg/l < < < < < Al-D mg/l 0.5 < Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < < < Be-T mg/l < < < < < Bi-D mg/l < < < < < Bi-T mg/l < < < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < Cd-T mg/l < < < < < Co-D mg/l < Co-T mg/l < Cr-D mg/l < < < < < Cr-T mg/l < < < < < Cu-D mg/l Cu-T mg/l < Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < < < Hg-T mg/l < < < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < < Mo-T mg/l < < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < Ni-T mg/l < Pb-D mg/l 0.05 < < < < < Pb-T mg/l < < < < < Sb-D mg/l < < < < < Sb-T mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Se-T mg/l < < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < < < Sn-T mg/l < < < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < < < Ti-T mg/l < < < < < Tl-D mg/l < < < < < Tl-T mg/l < < < < < Zn-D mg/l 0.2 < < < < < Zn-T mg/l < < < < < Oil & Grease mg/l 10 <5.0 <5.0

20 Table 6 EMS ID Stn.Name 2 South Inflow into 2-South Pit Stn.Code 2SI 2SI Date Units WQG-Max (M) 10-Oct Dec-17 TSS mg/l 25 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l Hard-T mg/l Ag-D mg/l < < Ag-T mg/l < < Al-D mg/l Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < Be-T mg/l < < Bi-D mg/l < < Bi-T mg/l < < B-T mg/l <0.050 Ca-D mg/l Ca-T mg/l Cd-D mg/l Cd-T mg/l < < Co-D mg/l Co-T mg/l Cr-D mg/l < < Cr-T mg/l < Cu-D mg/l Cu-T mg/l Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < Hg-T mg/l < < K-D mg/l K-T mg/l Li-D mg/l < Li-T mg/l < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < Mo-T mg/l 2.0 < < Na-D mg/l Na-T mg/l Ni-D mg/l < < Ni-T mg/l < Pb-D mg/l < < Pb-T mg/l < < Sb-D mg/l < < Sb-T mg/l < < S-D mg/l Se-D mg/l < < Se-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l < < Sn-T mg/l < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < Ti-T mg/l < < Tl-D mg/l < < Tl-T mg/l < < Zn-D mg/l < < Zn-T mg/l 0.03 < <0.0050

21 Table 7 EMS ID E Stn.Name 2 South Pit In Pit Water Cover Stn.Code 2S 2S 2S Date Units 10-Oct-17 6-Nov Dec-17 TSS mg/l <4.0 <4.0 Alk-T mg/l Acidity83 mg/l 1.1 <1.0 <1.0 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < Cd-T mg/l < < < Co-D mg/l < < Co-T mg/l < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l Cu-T mg/l Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < < Zn-T mg/l < < <0.0050

22 Table 8 EMS ID Stn.Name 2 South Culvert Stn.Code 2SC 2SC 2SC Date Units 10-Oct-17 6-Nov Dec-17 TSS mg/l <4.0 <4.0 Alk-T mg/l Acidity83 mg/l 2.3 < Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l < Al-T mg/l <0.015 As-D mg/l < As-T mg/l < Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < Cd-T mg/l < < < Co-D mg/l < < < Co-T mg/l < < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l < Cu-T mg/l < < < Fe-D mg/l < Fe-T mg/l < <0.050 Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l <0.010 Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < Se-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l <0.025 < < Sn-T mg/l < < <0.025 SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 < < Ti-T mg/l < < <0.025 Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l <0.025 < < Zn-T mg/l < < <0.025

23 Table 9 EMS ID E Stn.Name South Pit Main Sump Water Stn.Code Permit Limit- 3S 3S 3S Date Units South (P) 5-Oct-17 6-Nov Dec-17 TSS mg/l 25 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l <1.0 < Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l 0.5 < Al-T mg/l < As-D mg/l < As-T mg/l < < Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l < < < Co-T mg/l < < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l 0.02 < Cu-T mg/l < < < Fe-D mg/l 0.5 <0.025 < Fe-T mg/l < <0.050 Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l < Li-T mg/l < <0.010 Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l 0.05 < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < Se-T mg/l < < Si-D mg/l < Si-T mg/l < Sn-D mg/l <0.025 < < Sn-T mg/l <0.025 < <0.025 SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 < < Ti-T mg/l <0.025 < <0.025 Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l 0.2 <0.025 < < Zn-T mg/l <0.025 < <0.025

24 Table 10 EMS ID Stn.Name Influent for biocell Stn.Code INF INF INF Date Units 3-Oct Nov Dec-17 TSS mg/l Alk-T mg/l Acidity83 mg/l 14.3 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l < Al-T mg/l < As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l Co-T mg/l < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l < < < Cu-T mg/l < Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < Ni-T mg/l < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l <0.025 < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l <0.025 < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < Zn-T mg/l <

25 Table 11 EMS ID Stn.Name BCR Effluent Stn.Code BCREFF BCREFF BCREFF Date Units 3-Oct Nov Dec-17 TSS mg/l Alk-T mg/l 345 Acidity83 mg/l 15.3 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l <0.015 Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l < < < Co-T mg/l < < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l < < < Cu-T mg/l < < Fe-D mg/l < <0.025 Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l <0.010 Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < <0.025 Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < <0.025 Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < <0.025 Zn-T mg/l < < <0.0050

26 Table 12 EMS ID Stn.Name Sulphide Polishing Cell Effluent Stn.Code SPCEFF SPCEFF SPCEFF Date Units 3-Oct Nov Dec-17 TSS mg/l Alk-T mg/l 336 Acidity83 mg/l 18.6 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l Al-T mg/l < As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < Cd-T mg/l < < < Co-D mg/l < Co-T mg/l < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l < Cu-T mg/l < < Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < Mo-T mg/l < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < Zn-T mg/l < < <0.0050

27 Table 13 EMS ID Stn.Name Aerobic Lagoon Effluent Stn.Code ALEFF ALEFF ALEFF Date Units 3-Oct Nov Dec-17 TSS mg/l Alk-T mg/l Acidity83 mg/l Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l < Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l < < < Co-T mg/l < < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l < < < Cu-T mg/l < < < Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < Mo-T mg/l < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < < Zn-T mg/l < < <0.0050

28 Table 14 EMS ID Stn.Name Settling Pond Effluent Stn.Code Permit Limit- SPEFF SPEFF SPEFF Date Units South (P) 3-Oct Nov Dec-17 TSS mg/l 25 <4.0 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l 2.6 < Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l 0.5 < Al-T mg/l < As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < Cd-T mg/l < < < Co-D mg/l < < < Co-T mg/l < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l 0.02 < Cu-T mg/l < < Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < Mo-T mg/l < < Na-D mg/l Na-T mg/l Ni-D mg/l < < Ni-T mg/l < < Pb-D mg/l 0.05 < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l 0.2 < < < Zn-T mg/l < < <0.0050

29 Table 15 EMS ID Stn.Name Biocell Downstream Stn.Code Permit Limit- BDS BDS BDS Date Units South (P) 3-Oct Nov Dec-17 TSS mg/l 25 <4.0 < Alk-T mg/l Acidity83 mg/l <1.0 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l 0.5 < Al-T mg/l < As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < Cd-T mg/l < < < Co-D mg/l < Co-T mg/l < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l Cu-T mg/l Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < Mo-T mg/l < < Na-D mg/l Na-T mg/l Ni-D mg/l < Ni-T mg/l Pb-D mg/l 0.05 < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l 0.2 < < < Zn-T mg/l < < <0.0050

30 Table 16 EMS ID E Stn.Name 1977 Adit Pit Stn.Code 3S77 Date Units WQG-Max (M) 12-Oct-17 TSS mg/l 25 Alk-T mg/l 172 Acidity83 mg/l <1.0 Hard-T mg/l 291 Ag-D mg/l < Ag-T mg/l < Al-D mg/l 0.1 < Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < Be-T mg/l < Bi-D mg/l < Bi-T mg/l < B-T mg/l Ca-D mg/l 102 Ca-T mg/l 97.1 Cd-D mg/l < Cd-T mg/l < Co-D mg/l < Co-T mg/l 0.11 < Cr-D mg/l < Cr-T mg/l < Cu-D mg/l < Cu-T mg/l < Fe-D mg/l Fe-T mg/l Hard-D mg/l 306 Hg-D mg/l < Hg-T mg/l < K-D mg/l 2.08 K-T mg/l 1.98 Li-D mg/l < Li-T mg/l < Mg-D mg/l 12.8 Mg-T mg/l 11.6 Mn-D mg/l Mn-T mg/l Mo-D mg/l < Mo-T mg/l 2.0 < Na-D mg/l 60.1 Na-T mg/l 53.7 Ni-D mg/l < Ni-T mg/l < Pb-D mg/l < Pb-T mg/l < Sb-D mg/l < Sb-T mg/l < S-D mg/l 86.4 Se-D mg/l < Se-T mg/l < Si-D mg/l 5.13 Si-T mg/l 5.07 Sn-D mg/l < Sn-T mg/l < SO4-D mg/l 228 Sr-D mg/l Sr-T mg/l S-T mg/l 81.4 Ti-D mg/l < Ti-T mg/l < Tl-D mg/l < Tl-T mg/l < Zn-D mg/l < Zn-T mg/l 0.03 <0.0050

31 Table 17 EMS ID E Stn.Name Long Lake Entry from South Water Management Stn.Code LLE LLE LLE LLE Date Units WQOG-Max (M) 3-Oct-17 6-Nov-17 4-Dec Dec-17 TSS mg/l 25 <4.0 <4.0 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l < Hard-T mg/l Ag-D mg/l < < < < Ag-T mg/l < < < < Al-D mg/l 0.1 < Al-T mg/l < As-D mg/l < As-T mg/l < Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < < Be-T mg/l < < < < Bi-D mg/l < < < < Bi-T mg/l < < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < Cd-T mg/l < < < < Co-D mg/l < < < Co-T mg/l 0.05 < < < Cr-D mg/l < < < < Cr-T mg/l < < < < Cu-D mg/l < Cu-T mg/l < Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l < < Li-T mg/l < < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < < Mo-T mg/l < < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < < Ni-T mg/l < < < < Pb-D mg/l < < < < Pb-T mg/l < < < < Sb-D mg/l < < < < Sb-T mg/l < < < < S-D mg/l Se-D mg/l < < < < Se-T mg/l < < < < Si-D mg/l Si-T mg/l Sn-D mg/l <0.025 < < < Sn-T mg/l <0.025 < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 < < < Ti-T mg/l <0.025 < < < Tl-D mg/l < < < < Tl-T mg/l < < < < Zn-D mg/l <0.025 < < Zn-T mg/l 0.03 <0.025 < < <0.0050

32 Table 18 EMS ID E Stn.Name Seep into Long Lake Stn.Code LLS LLS LLS Date Units WQOG-Max (M) 10-Oct-17 7-Nov-17 7-Dec-17 TSS mg/l 25 <4.0 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l 4.2 < Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l 0.1 < Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l < Co-T mg/l 0.05 < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l Cu-T mg/l Fe-D mg/l 0.35 < Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < Ni-T mg/l < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < < Zn-T mg/l 0.03 < < <0.0050

33 Table 19 EMS ID E Stn.Name Long Lake Middle Seep Stn.Code LLSM LLSM LLSM Date Units WQOG-Max (M) 7-Nov Nov-17 7-Dec-17 TSS mg/l 25 < <4.0 Alk-T mg/l Acidity83 mg/l < <1.0 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < Cd-T mg/l < < Co-D mg/l Co-T mg/l Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l Cu-T mg/l Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l Ni-T mg/l Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < Se-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < Zn-T mg/l 0.03 < <0.0050

34 Table 20 EMS ID E E E E Stn.Name 7 South Portal Sump Stn.Code 7SPS 7SPS 7SPS 7SPS Date Units 11-Oct Oct Nov-17 4-Dec-17 TSS mg/l Alk-T mg/l 125 <1.0 < Acidity83 mg/l < Hard-T mg/l Ag-D mg/l < < < < Ag-T mg/l < < < < Al-D mg/l Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l < <0.050 Be-D mg/l < < Be-T mg/l < < Bi-D mg/l < < < < Bi-T mg/l < < < < B-T mg/l <0.25 < <0.050 Ca-D mg/l Ca-T mg/l Cd-D mg/l Cd-T mg/l < Co-D mg/l Co-T mg/l Cr-D mg/l < < Cr-T mg/l < Cu-D mg/l Cu-T mg/l Fe-D mg/l Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < < Hg-T mg/l < < < < K-D mg/l K-T mg/l Li-D mg/l < Li-T mg/l <0.010 < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < < Mo-T mg/l < < < < Na-D mg/l Na-T mg/l Ni-D mg/l Ni-T mg/l Pb-D mg/l < < < < Pb-T mg/l < < Sb-D mg/l < < < < Sb-T mg/l < < < < S-D mg/l Se-D mg/l Se-T mg/l < Si-D mg/l Si-T mg/l Sn-D mg/l < <0.025 < < Sn-T mg/l <0.025 <0.025 < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < <0.025 < < Ti-T mg/l < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < Zn-T mg/l < Portal sump water is pumped to 5-South mine pool where it mixes and dilutes. There was limited water in this sump all summer causing oxidation of iron and leaching from sump walls.

35 Table 21 EMS ID E Stn.Name Settling Pond at 7S Stn.Code Permit Limit 7SSD 7SSD 7SSD 7SSD Date Units (P) 11-Oct Nov-17 4-Dec-17 TSS mg/l 25 <4.0 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l Al-T mg/l As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l <0.050 <0.050 <0.050 Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l <0.050 <0.050 <0.050 Ca-D mg/l Ca-T mg/l Cd-D mg/l < < Cd-T mg/l < < Co-D mg/l < < < Co-T mg/l < < < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l Cu-T mg/l Fe-D mg/l < Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l < < < Li-T mg/l < < < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l < < < Ti-T mg/l < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l < < < Zn-T mg/l < < <0.0050

36 Table 22 EMS ID E Stn.Name 2-N-Portal Sump Stn.Code Permit Limit 2NPS 2NPS 2NPS Date Units North (P) 5-Oct-17 6-Nov-17 5-Dec-17 TSS mg/l 25 Alk-T mg/l Acidity83 mg/l Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l 0.5 <0.015 < Al-T mg/l As-D mg/l < As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l < Co-T mg/l < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l 0.02 < < < Cu-T mg/l < < < Fe-D mg/l 0.3 <0.025 <0.025 <0.025 Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l Li-T mg/l Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < < < Pb-D mg/l 0.05 < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l <0.025 <0.025 <0.025 Sn-T mg/l <0.025 <0.025 <0.025 SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 <0.025 <0.025 Ti-T mg/l <0.025 <0.025 <0.025 Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l 0.1 <0.025 <0.025 <0.025 Zn-T mg/l <0.025 <0.025 <0.025

37 Table 23 EMS ID E Stn.Name 2 North Pit Sump Stn.Code WP WP WP Date Units 5-Oct-17 6-Nov-17 5-Dec-17 TSS mg/l 4.5 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 Hard-T mg/l Ag-D mg/l < < < Ag-T mg/l < < < Al-D mg/l <0.015 < Al-T mg/l As-D mg/l < As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < < Cd-T mg/l < < < Co-D mg/l < < Co-T mg/l < Cr-D mg/l < < < Cr-T mg/l < < < Cu-D mg/l < < < Cu-T mg/l < Fe-D mg/l <0.025 <0.025 Fe-T mg/l Hard-D mg/l Hg-D mg/l < < < Hg-T mg/l < < < K-D mg/l K-T mg/l Li-D mg/l <0.010 <0.010 <0.010 Li-T mg/l < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < < Mo-T mg/l < < < Na-D mg/l Na-T mg/l Ni-D mg/l < < < Ni-T mg/l < Pb-D mg/l < < < Pb-T mg/l < < < Sb-D mg/l < < < Sb-T mg/l < < < S-D mg/l Se-D mg/l < < < Se-T mg/l < Si-D mg/l Si-T mg/l Sn-D mg/l <0.025 <0.025 <0.025 Sn-T mg/l <0.025 < < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 <0.025 <0.025 Ti-T mg/l <0.025 < < Tl-D mg/l < < < Tl-T mg/l < < < Zn-D mg/l <0.025 <0.025 <0.025 Zn-T mg/l <0.025 < <0.0050

38 Table 24 EMS ID E Stn.Name Settling Pond #4 Stn.Code Permit Limit WD WD WD WD Date Units North (P) 5-Oct-17 6-Nov-17 4-Dec Dec-17 TSS mg/l 25 Alk-T mg/l Acidity83 mg/l <1.0 < Hard-T mg/l Ag-D mg/l < < Ag-T mg/l < < Al-D mg/l 0.5 < Al-T mg/l < As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < Be-T mg/l < < Bi-D mg/l < < Bi-T mg/l < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < Cd-T mg/l < < Co-D mg/l < Co-T mg/l < Cr-D mg/l < < Cr-T mg/l < < Cu-D mg/l 0.02 < Cu-T mg/l < Fe-D mg/l 0.3 < Fe-T mg/l Hard-D mg/l Hg-D mg/l < < Hg-T mg/l < < K-D mg/l K-T mg/l Li-D mg/l < Li-T mg/l < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < Mo-T mg/l < < Na-D mg/l Na-T mg/l Ni-D mg/l < Ni-T mg/l < Pb-D mg/l 0.05 < < Pb-T mg/l < < Sb-D mg/l < < Sb-T mg/l < < S-D mg/l Se-D mg/l < Se-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l <0.025 < Sn-T mg/l <0.025 < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 < Ti-T mg/l <0.025 < Tl-D mg/l < < Tl-T mg/l < < Zn-D mg/l 0.1 <0.025 < Zn-T mg/l <0.025 < Oil & Grease mg/l 10 <5 <5

39 Table 25 EMS ID E Stn.Name North Pit Culvert Stn.Code WC WC Date Units 5-Oct Dec-17 TSS mg/l <4.0 <4.0 Alk-T mg/l Acidity83 mg/l <1.0 Hard-T mg/l Ag-D mg/l < < Ag-T mg/l < < Al-D mg/l < Al-T mg/l < As-D mg/l As-T mg/l Ba-D mg/l Ba-T mg/l B-D mg/l Be-D mg/l < < Be-T mg/l < < Bi-D mg/l < < Bi-T mg/l < < B-T mg/l Ca-D mg/l Ca-T mg/l Cd-D mg/l < < Cd-T mg/l < < Co-D mg/l < < Co-T mg/l < < Cr-D mg/l < < Cr-T mg/l < < Cu-D mg/l < Cu-T mg/l < < Fe-D mg/l < Fe-T mg/l Hard-D mg/l Hg-D mg/l < < Hg-T mg/l < < K-D mg/l K-T mg/l Li-D mg/l < Li-T mg/l < Mg-D mg/l Mg-T mg/l Mn-D mg/l Mn-T mg/l Mo-D mg/l < < Mo-T mg/l < < Na-D mg/l Na-T mg/l Ni-D mg/l < < Ni-T mg/l < < Pb-D mg/l < < Pb-T mg/l < < Sb-D mg/l < < Sb-T mg/l < < S-D mg/l Se-D mg/l < < Se-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l <0.025 < Sn-T mg/l <0.025 < SO4-D mg/l Sr-D mg/l Sr-T mg/l S-T mg/l Ti-D mg/l <0.025 < Ti-T mg/l <0.025 < Tl-D mg/l < < Tl-T mg/l < < Zn-D mg/l <0.025 < Zn-T mg/l <0.025 <0.0050

40 Table 26 EMS ID E E E Stn.Name South Pit Culvert Stn.Code SPC SPC SPC Date 17-Oct Nov Dec-2017 Parameter Unit SO4-D mg/l TSS mg/l <4.0 <4.0 <4.0 Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Cd-T mg/l < < Ca-T mg/l Cr-T mg/l < < < Co-T mg/l < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < Mg-T mg/l Mn-T mg/l < Hg-T mg/l < Mo-T mg/l < < < Ni-T mg/l < < < K-T mg/l S-T mg/l Se-T mg/l < < < Si-T mg/l Ag-T mg/l < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Be-D mg/l < < < Cd-D mg/l < < < Ca-D mg/l Cr-D mg/l < < < Co-D mg/l < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < Mg-D mg/l Mn-D mg/l < Hg-D mg/l < Mo-D mg/l < < < Ni-D mg/l < < < K-D mg/l S-D mg/l Se-D mg/l < < < Si-D mg/l Na-D mg/l Sr-D mg/l Zn-D mg/l < < <0.0050

41 Table 27 EMS ID E E E Stn.Name 4 South Lower 4 South Lower Stn.Code 4SLO 4SLO 4SLO Date 01-Oct Nov Dec-2017 Parameter Unit SO4-D mg/l TSS mg/l <4.0 <4.0 Alk-T mg/l Acidity83 mg/l <1.0 <1.0 Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Cd-T mg/l Ca-T mg/l Cr-T mg/l < < Co-T mg/l Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < Mo-T mg/l < < Ni-T mg/l K-T mg/l S-T mg/l Se-T mg/l < < Si-T mg/l Ag-T mg/l < < Na-T mg/l NF Sr-T mg/l Zn-T mg/l < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Be-D mg/l < < Cd-D mg/l Ca-D mg/l Cr-D mg/l < < Co-D mg/l Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < Mo-D mg/l < < Ni-D mg/l K-D mg/l S-D mg/l Se-D mg/l < < Si-D mg/l Na-D mg/l Sr-D mg/l Zn-D mg/l

42 Table 28 EMS ID E E Stn.Name South Dyke Sump Stn.Code SDS SDS Date 14-Nov Dec-2017 Parameter Unit SO4-D mg/l TSS mg/l Alk-T mg/l Acidity83 mg/l < Al-T mg/l As-T mg/l < Ba-T mg/l B-T mg/l Cd-T mg/l Ca-T mg/l Cr-T mg/l < Co-T mg/l Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < Mo-T mg/l < < Ni-T mg/l K-T mg/l S-T mg/l Se-T mg/l Si-T mg/l Ag-T mg/l < < Na-T mg/l Sr-T mg/l Zn-T mg/l Al-D mg/l As-D mg/l < Ba-D mg/l B-D mg/l Be-D mg/l < < Cd-D mg/l Ca-D mg/l Cr-D mg/l < < Co-D mg/l Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < Mo-D mg/l < < Ni-D mg/l K-D mg/l S-D mg/l Se-D mg/l Si-D mg/l Na-D mg/l Sr-D mg/l Zn-D mg/l

43 Table 29 EMS ID EMS ID E E E E E StnName Middle Quinsam Lake Inlet StnCode WA WA WA WA WA 5 in 30 Date 11-Oct Oct Oct Oct Nov-2017 Parameter Unit Average SO4-D mg/l 1.0 <1.0 <1.0 < Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l < < < B-T mg/l <0.050 <0.050 <0.050 <0.050 < Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < Co-T mg/l < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < K-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Se-T mg/l < < < < < Ag-T mg/l < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < Al-D mg/l As-D mg/l < Ba-D mg/l < < < B-D mg/l <0.050 <0.050 <0.050 <0.050 < Cd-D mg/l < < < < < Ca-D mg/l Cr-D mg/l < < < < < Co-D mg/l < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < Mg-D mg/l Mn-D mg/l < < < < < Hg-D mg/l < < < < < Mo-D mg/l < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < WQOG-Av (A) WQOG- Max (M)

44 Table 30 EMS ID E E E E E StnName Middle Quinsam Lake Outlet StnCode WB WB WB WB WB 5 in 30 Date 11-Oct Oct Oct Oct Nov-2017 Parameter Unit Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < Co-T mg/l < < < < < Cu-T mg/l < Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < K-T mg/l S-T mg/l Se-T mg/l < < < < < Ag-T mg/l < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Cd-D mg/l < < < < Ca-D mg/l Cr-D mg/l < < < < < Co-D mg/l < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < Mo-D mg/l < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l Se-D mg/l < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < WQOG-Av (A) WQOG- Max (M)

45 Table 31 EMS ID E E E E E StnName Long Lake Outlet StnCode LLO LLO LLO LLO LLO Date 11-Oct Oct Oct Oct Nov in 30 Parameter Unit Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < Co-T mg/l < < < < < Cu-T mg/l < < < < < Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < K-T mg/l S-T mg/l Se-T mg/l < < < < < Ag-T mg/l < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Cd-D mg/l < < < < < Ca-D mg/l Cr-D mg/l < < < < < Co-D mg/l < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < Mo-D mg/l < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l Se-D mg/l < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < WQOG-Av (A) WQOG- Max (M)

46 Table 32 EMS ID E E E E E StnName Quinsam River Downstream 1 StnCode QRDS1 QRDS1 QRDS1 QRDS1 QRDS1 5 in 30 Date 11-Oct Oct Oct Oct Nov-2017 Parameter Unit Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < Co-T mg/l < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < K-T mg/l S-T mg/l Se-T mg/l < < < < < Ag-T mg/l < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Cd-D mg/l < < < < < Ca-D mg/l Cr-D mg/l < < < < < Co-D mg/l < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < Mo-D mg/l < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l Se-D mg/l < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < WQOG-Av (A) WQOG- Max (M)

47 Table 33 EMS ID E E E E E StnName No Name Lake Outlet StnCode NNO NNO NNO NNO NNO 5 in 30 Date 24-Oct Nov Nov Nov Nov-2017 Average Parameter Unit SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < Co-T mg/l < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < K-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Se-T mg/l < < < < < Ag-T mg/l < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Cd-D mg/l < < < < < Ca-D mg/l Cr-D mg/l < < < < < Co-D mg/l < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < Mo-D mg/l < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < Ave-WQG (A) WQG-Max (M)

48 Table 34 StnName 3S Downstream StnCode 3SDS 3SDS 3SDS 3SDS 3SDS Date 24-Oct Nov Nov Nov Nov in 30 Parameter Unit Average SO4-D mg/l < Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < Co-T mg/l < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < K-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Se-T mg/l < < < < < Ag-T mg/l < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Cd-D mg/l < < < < < Ca-D mg/l Cr-D mg/l < < < < < Co-D mg/l < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < Mo-D mg/l < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < Ave-WQG (A) WQG-Max (M)

49 Table 35 StnName 3 South Downstream Site - Tributary StnCode 3SDST 3SDST 3SDST Date 24-Oct Nov Nov-2017 Parameter Unit WQG-Max (M) SO4-D mg/l <1.0 <1.0 <1.0 Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 TSS mg/l <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Cd-T mg/l < < < Ca-T mg/l Cr-T mg/l < < < Co-T mg/l < < < Cu-T mg/l < < Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < Mo-T mg/l < < < Ni-T mg/l < < < K-T mg/l S-T mg/l <3.0 <3.0 <3.0 Se-T mg/l < < < Ag-T mg/l < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Cd-D mg/l < < Ca-D mg/l Cr-D mg/l < < < Co-D mg/l < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < Mo-D mg/l < < < Ni-D mg/l < < < K-D mg/l S-D mg/l <3.0 <3.0 <3.0 Se-D mg/l < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < Ag-D mg/l < < < Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < DOC mg/l Li-D mg/l < < < Li-T mg/l < < < N-NH3 mg/l <0.020 <0.020 <0.020 N-NO23 mg/l P-D mg/l P-T mg/l Sb-D mg/l < < < Sb-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < U-D mg/l < < < U-T mg/l < < < V-D mg/l < < < V-T mg/l < < < Zr-D mg/l < < < Zr-T mg/l < < <

50 Table 36 StnName 3 South Downstream Site 3 StnCode 3SDS3 3SDS3 3SDS3 Date 24-Oct Nov Nov-2017 Parameter Unit WQG-Max (M) SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 TSS mg/l <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 Cd-T mg/l < < < Ca-T mg/l Cr-T mg/l < < < Co-T mg/l < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < Mo-T mg/l < < < Ni-T mg/l < < < K-T mg/l S-T mg/l <3.0 <3.0 <3.0 Se-T mg/l < < < Ag-T mg/l < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 Cd-D mg/l < < < Ca-D mg/l Cr-D mg/l < < < Co-D mg/l < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < Mo-D mg/l < < < Ni-D mg/l < < < K-D mg/l S-D mg/l <3.0 <3.0 <3.0 Se-D mg/l < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < Ag-D mg/l < < < Be-D mg/l < < < Be-T mg/l < < < Bi-D mg/l < < < Bi-T mg/l < < < DOC mg/l Li-D mg/l < < < Li-T mg/l < < < N-NH3 mg/l <0.020 <0.020 <0.020 N-NO23 mg/l P-D mg/l P-T mg/l Sb-D mg/l < < < Sb-T mg/l < < < Si-D mg/l Si-T mg/l Sn-D mg/l < < < Sn-T mg/l < < < Ti-D mg/l < < < Ti-T mg/l < < < Tl-D mg/l < < < Tl-T mg/l < < < U-D mg/l < < < U-T mg/l < < < V-D mg/l < < < V-T mg/l < < < Zr-D mg/l < < < Zr-T mg/l < < <

51 Table 37 EMS ID E E E E E StnName Lower Wetland Outlet (7S) StnCode LWO LWO LWO LWO LWO Date 24-Oct Oct Nov Nov Nov X 30 Parameter Unit Average WQOG-Av (A) WQOG-Max (M) SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 < TSS mg/l <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 < Cd-T mg/l < < < < Ca-T mg/l Cr-T mg/l < < < < Co-T mg/l < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l Mo-T mg/l < < < < Ni-T mg/l < < < < K-T mg/l <0.050 < S-T mg/l <3.0 < Se-T mg/l < < < Ag-T mg/l NS- Sample was collected but the < < < < Na-T mg/l analytical Sr-T mg/l laboratory failed to analyze it Zn-T mg/l < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 < Cd-D mg/l < < Ca-D mg/l Cr-D mg/l < < < < Co-D mg/l < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < Mo-D mg/l < < < < Ni-D mg/l < < < < K-D mg/l <0.050 < S-D mg/l <3.0 < Se-D mg/l < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < <

52 Table 38 EMS ID E E E E E E StnName 7 South Quinsam River StnCode 7SQR 7SQR 7SQR 7SQR 7SQR 7SQR 5 in 30 Date 12-Oct Oct Oct Oct Nov Dec-2017 Parameter Unit Monthly Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l < Cd-T mg/l < < < < < < Ca-T mg/l Cr-T mg/l < < < < < < Co-T mg/l < < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < < < Mo-T mg/l < < < < < < Ni-T mg/l < < < < < < K-T mg/l S-T mg/l Se-T mg/l < < < < < < Ag-T mg/l < < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Cd-D mg/l < < < < < < Ca-D mg/l Cr-D mg/l < < < < < < Co-D mg/l < < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < < Mo-D mg/l < < < < < < Ni-D mg/l < < < < < < K-D mg/l S-D mg/l Se-D mg/l < < < < < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < < WQOG-Av (A) WQOG- Max (M)

53 Table 39 EMS ID E E E E E E StnName Iron River Upstream Site 1 StnCode IR1 IR1 IR1 IR1 IR1 IR1 5 in 30 Date 12-Oct Oct Oct Oct Nov Dec-2017 Parameter Unit Monthly Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 <0.050 < Cd-T mg/l Ca-T mg/l Cr-T mg/l < < < < < < Co-T mg/l < < < < < < Cu-T mg/l < Hard-T mg/l Fe-T mg/l < < Pb-T mg/l < < < < < < Mg-T mg/l Mn-T mg/l < < < Hg-T mg/l < < < < Mo-T mg/l < < < < < Ni-T mg/l < < < < < < K-T mg/l S-T mg/l 6.7 <3.0 <3.0 <3.0 <3.0 < Se-T mg/l Ag-T mg/l < < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 <0.050 < Cd-D mg/l Ca-D mg/l Cr-D mg/l < < < < < < Co-D mg/l < < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < < Mg-D mg/l Mn-D mg/l < < < Hg-D mg/l < < < < Mo-D mg/l < < < < < < Ni-D mg/l < < < < < < K-D mg/l S-D mg/l 7.2 <3.0 <3.0 <3.0 <3.0 < Se-D mg/l Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < < Ave-WQG (A) WQG- Max (M)

54 Table 40 EMS ID E E E E E E StnName Iron River Site 6 StnCode IR6 IR6 IR6 IR6 IR6 IR6 5 in 30 Date 12-Oct Oct Oct Oct Nov Dec-2017 Parameter Unit Monthly Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Cd-T mg/l < Ca-T mg/l Cr-T mg/l < < < < < < Co-T mg/l < < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l < Pb-T mg/l < < < < < < Mg-T mg/l Mn-T mg/l < < Hg-T mg/l < < < < Mo-T mg/l < < < < < < Ni-T mg/l < < < < < < K-T mg/l S-T mg/l 6.6 <3.0 <3.0 <3.0 <3.0 < Se-T mg/l Ag-T mg/l < < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Cd-D mg/l Ca-D mg/l Cr-D mg/l < < < < < < Co-D mg/l < < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l < Pb-D mg/l < < < < < < Mg-D mg/l Mn-D mg/l < < < Hg-D mg/l < < < < Mo-D mg/l < < < < < < Ni-D mg/l < < < < < < K-D mg/l S-D mg/l 7.4 <3.0 <3.0 <3.0 <3.0 < Se-D mg/l Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < < Ave-WQG (A) WQG- Max (M)

55 Table 41 EMS ID E E E E E E StnName Iron River Site 8 StnCode IR8 IR8 IR8 IR8 IR8 IR8 5 in 30 Date 12-Oct Oct Oct Oct Nov Dec-2017 Parameter Unit Monthly Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Cd-T mg/l < < < Ca-T mg/l Cr-T mg/l < < < < < < Co-T mg/l < < < < < < Cu-T mg/l Hard-T mg/l Fe-T mg/l < Pb-T mg/l < < < < < < Mg-T mg/l Mn-T mg/l < < Hg-T mg/l < < < < Mo-T mg/l < < < < < < Ni-T mg/l < < < < < < K-T mg/l S-T mg/l 6.8 <3.0 <3.0 <3.0 <3.0 < Se-T mg/l Ag-T mg/l < < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Cd-D mg/l Ca-D mg/l Cr-D mg/l < < < < < < Co-D mg/l < < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < < Mg-D mg/l Mn-D mg/l < < < Hg-D mg/l < < < < Mo-D mg/l < < < < < < Ni-D mg/l < < < < < < K-D mg/l S-D mg/l 7.5 <3.0 <3.0 <3.0 <3.0 < Se-D mg/l Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < < Ave-WQG (A) WQG- Max (M)

56 Table 42 EMS ID E E E E E E StnName Iron River & Quinsam River StnCode IRQR IRQR IRQR IRQR IRQR IRQR 5 in 30 Date 12-Oct Oct Oct Oct Nov Dec-2017 Parameter Unit Monthly Average SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 <1.0 < TSS mg/l <4.0 <4.0 <4.0 <4.0 <4.0 < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 < < Cd-T mg/l < < < < < Ca-T mg/l Cr-T mg/l < < < < < < Co-T mg/l < < < < < < Cu-T mg/l < Hard-T mg/l Fe-T mg/l Pb-T mg/l < < < < < < Mg-T mg/l Mn-T mg/l Hg-T mg/l < < < < Mo-T mg/l < < < < < < Ni-T mg/l < < < < < < K-T mg/l S-T mg/l Se-T mg/l < < Ag-T mg/l < < < < < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 < < Cd-D mg/l < < < < Ca-D mg/l Cr-D mg/l < < < < < < Co-D mg/l < < < < < < Cu-D mg/l Hard-D mg/l Fe-D mg/l Pb-D mg/l < < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < Mo-D mg/l < < < < < < Ni-D mg/l < < < < < < K-D mg/l S-D mg/l Se-D mg/l < Na-D mg/l Sr-D mg/l Zn-D mg/l < < < < < < WQOG-Av (A) WQOG- Max (M)

57 Table 43 EMS ID E StnName Stream 1 7S StnCode 7S 7S 7S Date 24-Oct Nov Dec-2017 WQG-Max (M) Parameter Unit SO4-D mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 TSS mg/l <4.0 < Al-T mg/l As-T mg/l < Ba-T mg/l B-T mg/l <0.050 <0.050 Cd-T mg/l < < Ca-T mg/l Cr-T mg/l < < Co-T mg/l < < Cu-T mg/l < Hard-T mg/l Fe-T mg/l < Pb-T mg/l < < Mg-T mg/l Mn-T mg/l < < Hg-T mg/l Mo-T mg/l < < Ni-T mg/l < < K-T mg/l S-T mg/l <3.0 <3.0 Se-T mg/l < < Ag-T mg/l < < Na-T mg/l Sr-T mg/l Zn-T mg/l < < Al-D mg/l As-D mg/l < Ba-D mg/l B-D mg/l <0.050 <0.050 Cd-D mg/l < < Ca-D mg/l Cr-D mg/l < < Co-D mg/l < < Cu-D mg/l NS- Sample was Hard-D mg/l collected but the analytical laboratory Fe-D mg/l failed to analyze it Pb-D mg/l < < Mg-D mg/l Mn-D mg/l < < Hg-D mg/l < < Mo-D mg/l < < Ni-D mg/l < < K-D mg/l S-D mg/l <3.0 <3.0 Se-D mg/l < < Na-D mg/l Sr-D mg/l Zn-D mg/l < < Ag-D mg/l < < Be-D mg/l < < Be-T mg/l < < Bi-D mg/l < < Bi-T mg/l < < DOC mg/l 3.42 Li-D mg/l < < Li-T mg/l < < Sb-D mg/l < < Sb-T mg/l < < Si-D mg/l Si-T mg/l Sn-D mg/l < < Sn-T mg/l < < Ti-D mg/l < < Ti-T mg/l < < Tl-D mg/l < < Tl-T mg/l < < U-D mg/l < < U-T mg/l < < V-D mg/l < < V-T mg/l < < Zr-D mg/l < < Zr-T mg/l < <

58 Table 44 EMS ID: E STATION NAME: NO NAME LAKE (NNL) Sample Date DEPTH PROFILING - LAKES NO NAME LAKE DEPTH PROFILING 19-Oct 25-Oct 02-Nov 08-Nov 16-Nov Parameter TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP Sample Depth (m) ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv m from Bottom (BS) BS = BS= BS= 12.0 BS= 12.0 BS= 12.8 EMS ID: E LONG LAKE DEPTH PROFILING STATION NAME: LONG LAKE (LLM) Sample Date 19-Oct 25-Oct 02-Nov 08-Nov 16-Nov Parameter TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP Sample Depth (m) ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv m from Bottom (BS) BS= BS= BS= 19.0 BS= 19.0 BS= 20 EMS ID E MIDDLE QUINSAM LAKE DEPTH PROFILING STATION NAME: MIDDLE QUINSAM LAKE (MQL) Sample Date 19-Oct 25-Oct 02-Nov 08-Nov 16-Nov Parameter TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP Sample Depth (m) ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv m from Bottom (BS) BS= BS= BS= 13.5 BS= 13.5 BS= 13.5 EMS ID E LOWER QUINSAM LAKE DEPTH PROFILING STATION NAME: LOWER QUINSAM LAKE (LQL) I Sample Date 19-Oct 25-Oct 02-Nov 09-Nov 17-Nov Parameter TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP TEMP. ph C % Sat. D.O. ORP Sample Depth (m) ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l mv ºC µs/cm mg/l1 mv ºC µs/cm mg/l mv m from Bottom (BS) BS= BS= BS= 16.0 BS= 15.5 BS = 16.5

59 Table 45 EMS ID E E E E E StnName No Name Lake 1M StnCode NNL1 NNL1 NNL1 NNL1 NNL1 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Chlr-a ug/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

60 Table 46 EMS ID E E E E E StnName No Name Lake 4M StnCode NNL4 NNL4 NNL4 NNL4 NNL4 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

61 Table 47 EMS ID E E E E E StnName No Name Lake 9M StnCode NNL9 NNL9 NNL9 NNL9 NNL9 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < <

62 Table 48 EMS ID E E E E E StnName No Name Lake 1M from Bottom StnCode NNLB NNLB NNLB NNLB NNLB 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l <3.0 <3.0 <3.0 <3.0 < Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l <3.0 <3.0 <3.0 <3.0 < Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

63 Table 49 EMS ID E E E E E StnName Long Lake Middle 1M StnCode LLM1 LLM1 LLM1 LLM1 LLM1 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Chlr-a ug/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

64 Table 50 EMS ID E E E E E StnName Long Lake Middle 4M StnCode LLM4 LLM4 LLM4 LLM4 LLM4 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < < < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l < Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

65 Table 51 EMS ID E E E E E StnName Long Lake Middle 9M StnCode LLM9 LLM9 LLM9 LLM9 LLM9 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < < < < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

66 Table 52 EMS ID E E E E E StnName Long Lake Middle 1M From Bottom StnCode LLMB LLMB LLMB LLMB LLMB 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l < < < < Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

67 Table 53 EMS ID E E E E E StnName Middle Quinsam Lake 1M StnCode MQL1 MQL1 MQL1 MQL1 MQL1 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Chlr-a ug/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Ca-D mg/l Cd-D mg/l < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l < < Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

68 Table 54 EMS ID E E E E E StnName Middle Quinsam Lake 4M StnCode MQL4 MQL4 MQL4 MQL4 MQL4 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l < < Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

69 Table 55 EMS ID E E E E E StnName Middle Quinsam Lake 9M StnCode MQL9 MQL9 MQL9 MQL9 MQL9 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Ca-D mg/l Cd-D mg/l < < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l < < < Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

70 Table 56 EMS ID E E E E E StnName Middle Quinsam Lake 1M from Bottom StnCode MQLB MQLB MQLB MQLB MQLB 5 in 30 Date Unit 19-Oct Oct-17 2-Nov-17 8-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l < Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < Ca-D mg/l Cd-D mg/l < < < < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l < Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

71 Table 57 EMS ID E StnName Lower Quinsam Lake 1M StnCode LQL1 LQL1 LQL1 LQL1 LQL1 5 in 30 Date Unit 20-Oct Oct-17 2-Nov-17 9-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Chlr-a ug/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

72 Table 58 EMS ID E E E E E StnName Lower Quinsam Lake 4M StnCode LQL4 LQL4 LQL4 LQL4 LQL4 5 in 30 Date Unit 20-Oct Oct-17 2-Nov-17 9-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l < <0.050 <0.050 < Ca-D mg/l Cd-D mg/l < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

73 Table 59 EMS ID E E E E E StnName Lower Quinsam Lake 9M StnCode LQL9 LQL9 LQL9 LQL9 LQL9 5 in 30 Date Unit 20-Oct Oct-17 2-Nov-17 9-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < Co-T mg/l < < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l < Co-D mg/l < < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

74 Table 60 EMS ID E E E E E StnName Lower Quinsam Lake 1M from Bottom StnCode LQLB LQLB LQLB LQLB LQLB 5 in 30 Date Unit 20-Oct Oct-17 2-Nov-17 9-Nov Nov-17 Average Ave-WQOG WQOG-Max SO4-D mg/l Turb NTU Alk-T mg/l P-T mg/l Al-T mg/l As-T mg/l Ba-T mg/l B-T mg/l <0.050 <0.050 <0.050 <0.050 < Ca-T mg/l Cd-T mg/l < < < < Co-T mg/l < < < < Cr-T mg/l < < < < < Cu-T mg/l Fe-T mg/l Hard-T mg/l Hg-T mg/l < < < < K-T mg/l Li-T mg/l < < < < < Mg-T mg/l Mn-T mg/l Mo-T mg/l < < < < < Na-T mg/l Ni-T mg/l < < < < < Pb-T mg/l < < < < < Sb-T mg/l < < < < < Se-T mg/l < < < Si-T mg/l Sn-T mg/l < < < < < Sr-T mg/l S-T mg/l Ti-T mg/l < < < < < Tl-T mg/l < < < < < U-T mg/l < < < < < V-T mg/l < < < < < Zn-T mg/l < < < < < Al-D mg/l As-D mg/l Ba-D mg/l B-D mg/l <0.050 <0.050 <0.050 <0.050 < Ca-D mg/l Cd-D mg/l Co-D mg/l < < < < Cr-D mg/l < < < < < Cu-D mg/l Fe-D mg/l Hard-D mg/l Hg-D mg/l < < < < K-D mg/l Li-D mg/l < < < < < Mg-D mg/l Mn-D mg/l Mo-D mg/l < < < < < Na-D mg/l Ni-D mg/l < < < < < Pb-D mg/l < < < < < S-D mg/l Se-D mg/l < < < < < Si-D mg/l Sn-D mg/l < < < < < Zn-D mg/l < < < < <

75 Table 61 Groundwater Mining Area 2-3 North Monitoring Results In-Situ Ex-Situ Stn.Code CSR-AW (applies only to Ex-Situ wells) 1M2N 5M#2 6M2N -Sump QU1013D QU0821GS QU0821GD QU1010S QU1010D Date 30-Nov Nov Dec-17 6-Dec Dec Dec-17 6-Dec-17 6-Dec-17 Parameter Units SO4-D mg/l < <1.0 S2-T mg/l < Alk-T mg/l Acidity83 mg/l <1.0 < <1.0 < < N-D mg/l DOC mg/l Hydrox mg/l <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Bicarb mg/l Carb mg/l < <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Cl-D mg/l F-D mg/l <0.020 Br-D mg/l < P-D mg/l < Al-D mg/l < < <0.015 <0.015 < <0.030 Ag-D mg/l < < < < < < < < As-D mg/l Ba-D mg/l B-D mg/l Be-D mg/l < < < < < < < < Bi-D mg/l < < < < < < < <0.010 Cd-D mg/l < < < < < < < < Ca-D mg/l Cr-D mg/l < < < < < < < <0.010 Co-D mg/l 0.04 < < < < < Cu-D mg/l < < < < < Fe-D mg/l Hard-D mg/l Pb-D mg/l < < < < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < < < < Na-D mg/l Mo-D mg/l 10 < < < < < < < <0.010 Ni-D mg/l < < < < < < <0.010 K-D mg/l S-D mg/l <15 < <30 Sb-D mg/l 0.2 < < < < < < < < Se-D mg/l 0.01 < < < < < < < Si-D mg/l Sr-D mg/l Tl-D mg/l < < < < < < < < Ti-D mg/l 1.00 < < < <0.025 <0.025 <0.025 < <0.050 U-D mg/l 3 < < < < < < < < V-D mg/l < < < <0.025 <0.025 <0.025 < <0.050 Zn-D mg/l < <0.025 <0.025 <0.025 < <0.050 H2SEquiv mg/l

76 Table 62 Groundwater River Barrier Pillar Monitoring Results 2-North Plant Monitoring Results In-Situ In-Situ In-Situ Ex-Situ Ex-Situ Ex-Situ Ex-Situ Ex-Situ Ex-Situ Ex-Situ Stn.Code CSR-AW (applies only to Ex-Situ wells) QU1109M QU1109M QU1109M QU1109S QU1105S QU1105D MW001S MW001D MW006S MW006D Date 26-Oct Nov Dec Dec-17 6-Dec-17 6-Dec-17 7-Dec-17 7-Dec-17 7-Dec-17 7-Dec-17 Parameter Units SO4-D mg/l S2-T mg/l Alk-T mg/l Acidity83 mg/l <2.0 < <1.0 < <1.0 <1.0 <1.0 N-D mg/l DOC mg/l Hydrox mg/l <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Bicarb mg/l Carb mg/l < < <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Cl-D mg/l <1.0 F-D mg/l Br-D mg/l < < < <0.010 P-D mg/l Al-D mg/l <0.015 <0.015 <0.015 < < Ag-D mg/l < < < < < < < < < < As-D mg/l < Ba-D mg/l B-D mg/l <0.050 Be-D mg/l < < < < < < < < < < Bi-D mg/l < < < < < < < < < < Cd-D mg/l < < < < < < < < Ca-D mg/l Cr-D mg/l < < < < < < < < < < Co-D mg/l 0.04 < < < < < < < < < < Cu-D mg/l < < < < < < < Fe-D mg/l < < < Hard-D mg/l Pb-D mg/l < < < < < < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < < < < < < Na-D mg/l Mo-D mg/l 10 < < < < < < Ni-D mg/l < < < < < < < < < < K-D mg/l S-D mg/l Sb-D mg/l 0.2 < < < < < < < < < < Se-D mg/l 0.01 < < < < < < < < < Si-D mg/l Sr-D mg/l Tl-D mg/l < < < < < < < < < < Ti-D mg/l 1.00 <0.025 <0.025 <0.025 <0.025 < <0.025 <0.025 < < < U-D mg/l 3 < < < < < V-D mg/l <0.025 <0.025 <0.025 <0.025 < <0.025 < < < Zn-D mg/l <0.025 <0.025 <0.025 <0.025 < <0.025 <0.025 < < < H2SEquiv mg/l

77 Table 63 7-South Monitoring Results In-Situ In-Situ In-Situ In-Situ In-Situ Ex-Situ Ex-Situ Ex-Situ Stn.Code CSR-AW (applies only to Ex-Situ wells) QU1410 QU1410 QU1410 1M7S-Sump 1M7S-Sump QU0810 QU0813A QU0813B Date 24-Oct Nov Dec-17 4-Oct Dec Dec Dec Dec-17 Parameter Units SO4-D mg/l S2-T mg/l < Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 <1.0 <1.0 N-D mg/l DOC mg/l Hydrox mg/l <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Bicarb mg/l Carb mg/l <1.0 <1.0 <1.0 <1.0 <1.0 < <1.0 Cl-D mg/l < F-D mg/l Br-D mg/l <0.050 <0.050 <0.050 <0.010 <0.010 < <0.010 P-D mg/l Al-D mg/l <0.015 <0.015 < < Ag-D mg/l < < < < < < < < As-D mg/l Ba-D mg/l B-D mg/l Be-D mg/l < < < < < < < < Bi-D mg/l < < < < < < < < Cd-D mg/l < < < < < < Ca-D mg/l Cr-D mg/l < < < < < < < < Co-D mg/l < < < Cu-D mg/l < < < < Fe-D mg/l < Hard-D mg/l Pb-D mg/l < < < < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < < < < Na-D mg/l Mo-D mg/l 10 < < < < Ni-D mg/l < < < K-D mg/l S-D mg/l Sb-D mg/l 0.2 < < < < < < < Se-D mg/l 0.01 < < < < < < < < Si-D mg/l Sr-D mg/l Tl-D mg/l < < < < < Ti-D mg/l 1.00 <0.025 <0.025 <0.025 < < < < < U-D mg/l < < < < V-D mg/l <0.025 <0.025 <0.025 < < < < < Zn-D mg/l <0.025 <0.025 <0.025 < < < < < H2SEquiv mg/l

78 Table 64 Groundwater 2-3 South Monitoring Results 5-South Monitoring Results 4-South Monitoring Results In-Situ In-Situ In-Situ In-Situ In-Situ Ex-Situ Ex-Situ Ex-Situ In-Situ In-Situ Ex-Situ Ex-Situ CSR-AW (applies only Stn.Code to Ex-Situ wells) MW004 QU1111 QU1111 QU1111 MW002 MW1223 MW1224 MW1224 5SDW 5SDW QU1009S QU1009D Date 30-Nov Dec-17 3-Oct Nov Oct Dec-17 2-Oct Dec Nov Nov Dec Dec-17 Parameter Units SO4-D mg/l S2-T mg/l Alk-T mg/l Acidity83 mg/l <1.0 <1.0 <1.0 < <1.0 N-D mg/l DOC mg/l Hydrox mg/l <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 Bicarb mg/l Carb mg/l <1.0 <1.0 <1.0 <1.0 < <1.0 <1.0 <1.0 Cl-D mg/l F-D mg/l Br-D mg/l <0.010 < P-D mg/l < Al-D mg/l < < < < Ag-D mg/l < < < < < < < < < < < < As-D mg/l Ba-D mg/l B-D mg/l Be-D mg/l < < < < < < < < < < < < Bi-D mg/l < < < < < < < < < < < < Cd-D mg/l < < < < < < < < < Ca-D mg/l Cr-D mg/l < < < < < < < < < < < < Co-D mg/l < < < Cu-D mg/l < < < < < Fe-D mg/l Hard-D mg/l Pb-D mg/l < < < < < < < < < < < < Mg-D mg/l Mn-D mg/l Hg-D mg/l < < < < < < < < < < < Na-D mg/l Mo-D mg/l 10 < < < < < < < Ni-D mg/l < < < < < K-D mg/l S-D mg/l <3.0 < Sb-D mg/l 0.2 < < < < < < < < < < < Se-D mg/l < < < < < < < < < Si-D mg/l Sr-D mg/l Tl-D mg/l < < < < < < < < < < < Ti-D mg/l 1.00 < < < < <0.025 < < < < < < < U-D mg/l 3 < < < < < < < < < V-D mg/l < < < < <0.025 < < < < < < < Zn-D mg/l < < <0.025 < < < < < < H2SEquiv mg/l

79 Table 65 Daily Total Suspended Solid Samples EMS ID E E Station Name Settling Pond #4 Settling Pond #1 Permit Limit 25 mg/l 25 mg/l Stn.Code WD WD WD SPD SPD SPD Month Oct. Nov. Dec. Oct. Nov. Dec. 1 <4.0 <4.0 <4.0 2 < <4.0 <4.0 3 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 4 < <4.0 <4.0 <4.0 5 < <4.0 <4.0 <4.0 6 <4.0 <4.0 <4.0 <4.0 <4.0 7 <4.0 <4.0 <4.0 <4.0 <4.0 8 <4.0 <4.0 <4.0 <4.0 <4.0 9 <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 < <4.0 <4.0 < < <4.0 <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 <4.0 < <4.0 < < < <4.0 < < <4.0 <4.0 <4.0 <4.0 < <4.0 < PNC 23 <4.0 < <4.0 PNC 24 <4.0 <4.0 PNC < <4.0 < <4.0 < <4.0 <4.0 < < <4.0 <4.0 <4.0 < <4.0 <4.0 <4.0 <4.0 < <4.0 < < < <

80 Table 66 EMS ID E DISCHARGE FROM SETTLING POND # 1 (SPD) Date October October November November December December Max. (m3/s) Daily (m3/s) Max. (m3/s) Daily (m3/s) Max. (m3/s) Daily (m3/s) Monthly Max Monthly Avg Quarterly Max Quarterly Avg PNC = Permit Non-compliance Bold = TSS composite sample is required: monthly - no decant flow, weekly when max daily flow < 0.046m 3 /s & daily when max daily flow > 0.046m 3 /s No Flow= NF

81 Table 67 EMS ID E DISCHARGE FROM SETTLING POND # 4 (WD) Date October October November November December December Max. (m3/s) Daily (m3/s) Max. (m3/s) Daily (m3/s) Max. (m3/s) Daily (m3/s) Monthly Max Monthly Avg Quarterly Max Quarterly Avg PNC = Permit Non-compliance Bold = TSS composite sample is required: monthly - no decant flow, weekly when max daily flow < 0.046m 3 /s & daily when max No Flow= NF

82 Table 68 Weekly ph / Conductivity Sample ID Site Date ph Cond (us/cm) WD-5Oct17-P WD 5-Oct WD-10Oct17-P WD 10-Oct WD-16Oct17-P WD 16-Oct WD-23Oct17-P WD 23-Oct WD-30Oct17-M WD 30-Oct WD-6Nov17-M WD 6-Nov WD-14Nov17-M WD 14-Nov WD-20Nov17-P WD 20-Nov WD-27Nov17-P WD 27-Nov WD-4Dec17-P WD 4-Dec WD-11Dec17-M WD 11-Dec WD-18Dec17-P WD 18-Dec WD-28Dec17-P WD 28-Dec WC-5Oct17-M WC 5-Oct WC-10Oct17-M WC 10-Oct WC-16Oct17-M WC 16-Oct WC-23Oct17-M WC 23-Oct WC-1Nov17-M WC 1-Nov WC-6Nov17-M WC 6-Nov WC-14Nov17-M WC 14-Nov WC-20Nov17-M WC 20-Nov WC-27Nov17-M WC 27-Nov WC-4Dec17-M WC 4-Dec WC-11Dec17-M WC 11-Dec WC-18Dec17-M WC 18-Dec WC-28Dec17-M WC 28-Dec WP-5Oct17-M WP 5-Oct WP-10Oct17-M WP 10-Oct WP-16Oct17-M WP 16-Oct WP-23Oct17-M WP 23-Oct WP-30Oct17-M WP 30-Oct WP-6Nov17-M WP 6-Nov WP-14Nov17-M WP 14-Nov WP-20Nov17-M WP 20-Nov WP-27Nov17-M WP 27-Nov WP-5Dec17-M WP 5-Dec WP-13Dec17-M WP 13-Dec WP-18Dec17-M WP 18-Dec WP-28Dec17-M WP 28-Dec SDS-10Oct17-M SDS 10-Oct SDS-14Nov17-M SDS 14-Nov SDS-20Nov17-M SDS 20-Nov SDS-28Nov17-M SDS 28-Nov SDS-5Dec17-M SDS 5-Dec SDS-14Dec17-M SDS 14-Dec SDS-28Dec17-M SDS 28-Dec

83 Table 69 Weekly ph / Conductivity Sample ID Site Date ph Cond (us/cm) 2NPS-5Oct17-M 2NPS 5-Oct NPS-10Oct17-M 2NPS 10-Oct NPS-16Oct17-M 2NPS 16-Oct NPS-23Oct17-M 2NPS 23-Oct NPS-30Oct17-M 2NPS 30-Oct NPS-6Nov17-M 2NPS 6-Nov NPS-12Nov17-M 2NPS 12-Nov NPS-20Nov17-M 2NPS 20-Nov NPS-27Nov17-M 2NPS 27-Nov NPS-5Dec17-M 2NPS 5-Dec NPS-13Dec17-M 2NPS 13-Dec NPS-18Dec17-M 2NPS 18-Dec NPS-28Dec17-M 2NPS 28-Dec SPD-3Oct17-P SPD 3-Oct SPD-12Oct17-P SPD 12-Oct SPD-17Oct17-P SPD 17-Oct SPD-23Oct17-P SPD 23-Oct SPD-30Oct17-P SPD 30-Oct SPD-7Nov17-P SPD 7-Nov SPD-12Nov17-P SPD 12-Nov SPD-20Nov17-P SPD 20-Nov SPD-27Nov17-P SPD 27-Nov SPD-4Dec17-P SPD 4-Dec SPD-11Dec17-P SPD 11-Dec SPD-18Dec17-P SPD 18-Dec SPD-28Dec17-P SPD 28-Dec SS-2Oct17-M 2SS 2-Oct SS-10Oct17-M 2SS 10-Oct SS-16Oct17-M 2SS 16-Oct SS-23Oct17-M 2SS 23-Oct SS-30Oct17-M 2SS 30-Oct SS-6Nov17-M 2SS 6-Nov SS-14Nov17-M 2SS 14-Nov SS-20Nov17-M 2SS 20-Nov SS-28Nov17-M 2SS 28-Nov SS-5Dec17-M 2SS 5-Dec SS-13Dec17-M 2SS 13-Dec SS-18Dec17-M 2SS 18-Dec SS-28Dec17-M 2SS 28-Dec S-5Oct17-M 3S 5-Oct S-10Oct17-M 3S 10-Oct S-16Oct17-M 3S 16-Oct S-23Oct17-M 3S 23-Oct S-30Oct17-M 3S 30-Oct S-6Nov17-M 3S 6-Nov S-14Nov17-M 3S 14-Nov S-20Nov17-M 3S 20-Nov S-28Nov17-M 3S 28-Nov S-5Dec17-M 3S 5-Dec S-13Dec17-M 3S 13-Dec S-18Dec17-M 3S 18-Dec S-28Dec17-M 3S 28-Dec

84 Table 70 Weekly ph / Conductivity Sample ID Site Date ph Cond (us/cm) BDS-3Oct17-M BDS 3-Oct BDS-10Oct17-M BDS 10-Oct BDS-12Oct17-M BDS 12-Oct BDS-17Oct17-M BDS 17-Oct BDS-23Oct17-M BDS 23-Oct BDS-30Oct17-M BDS 30-Oct BDS-8Nov17-M BDS 8-Nov BDS-14Nov17-M BDS 14-Nov BDS-20Nov17-M BDS 20-Nov BDS-27Nov17-M BDS 27-Nov BDS-4Dec17-M BDS 4-Dec BDS-18Dec17-M BDS 18-Dec BDS-28Dec17-M BDS 28-Dec S77-3Oct17-M 3S77 3-Oct S77-12Oct17-M 3S77 12-Oct S77-17Oct17-M 3S77 17-Oct S77-23Oct17-M 3S77 23-Oct S77-30Oct17-M 3S77 30-Oct S77-7Nov17-M 3S77 7-Nov S77-14Nov17-M 3S77 14-Nov S77-20Nov17-M 3S77 20-Nov S77-27Nov17-M 3S77 27-Nov S77-5Dec17-M 3S77 5-Dec S77-13Dec17-M 3S77 13-Dec S77-18Dec17-M 3S77 18-Dec S77-28Dec17-M 3S77 28-Dec SLO-20Nov17-M 4SLO 20-Nov SLO-27Nov17-M 4SLO 27-Nov SLO-4Dec17-M 4SLO 4-Dec SLO-13Dec17-M 4SLO 13-Dec SLO-18Dec17-M 4SLO 18-Dec SLO-28Dec17-M 4SLO 28-Dec SPEFF-3Oct17-M SPEFF 3-Oct SPEFF-10Oct17-M SPEFF 10-Oct SPEFF-17Oct17-M SPEFF 17-Oct SPEFF-23Oct17-M SPEFF 23-Oct SPEFF-30Oct17-M SPEFF 30-Oct SPEFF-8Nov17-M SPEFF 8-Nov SPEFF-14Nov17-M SPEFF 14-Nov SPEFF-20Nov17-M SPEFF 20-Nov SPEFF-27Nov17-M SPEFF 27-Nov SPEFF-4Dec17-M SPEFF 4-Dec SPEFF-18Dec17-M SPEFF 18-Dec SPEFF-28Dec17-M SPEFF 28-Dec SPC-17Oct17-M SPC 17-Oct SPC-23Oct17-M SPC 23-Oct SPC-30Oct17-M SPC 30-Oct SPC-Oct17-M SPC 30-Oct SPC-7Nov17-M SPC 7-Nov SPC-15Nov17-M SPC 15-Nov SPC-20Nov17-M SPC 20-Nov SPC-27Nov17-M SPC 27-Nov SPC-4Dec17-M SPC 4-Dec SPC-13Dec17-M SPC 13-Dec SPC-28Dec17-M SPC 28-Dec

85 Table 71 Weekly ph / Conductivity Sample ID Site Date ph Cond (us/cm) LLE-3Oct17-M LLE 3-Oct LLE-11Oct17-M LLE 11-Oct LLE-17Oct17-M LLE 17-Oct LLE-23Oct17-M LLE 23-Oct LLE-30Oct17-M LLE 30-Oct LLE-6Nov17-M LLE 6-Nov LLE-14Nov17-M LLE 14-Nov LLE-20Nov17-M LLE 20-Nov LLE-27Nov17-M LLE 27-Nov LLE-4Dec17-M LLE 4-Dec LLE-13Dec17-M LLE 13-Dec LLE-18Dec17-M LLE 18-Dec LLE-28Dec17-M LLE 28-Dec LLO-11Oct17-M LLO 11-Oct LLO-16Oct17-M LLO 16-Oct LLO-23Oct17-M LLO 23-Oct LLO-30Oct17-M LLO 30-Oct LLO-6Nov17-M LLO 6-Nov LLO-14Nov17-M LLO 14-Nov LLO-20Nov17-M LLO 20-Nov LLO-27Nov17-M LLO 27-Nov LLO-4Dec17-M LLO 4-Dec LLO-13Dec17-M LLO 13-Dec LLO-18Dec17-M LLO 18-Dec LLO-28Dec17-M LLO 28-Dec LLS-10Oct17-M LLS 10-Oct LLS-7Nov17-M LLS 7-Nov LLS-28Nov17-M LLS 28-Nov LLS-7Dec17-M LLS 7-Dec LLSM-7Nov17-M LLSM 7-Nov LLSM-21Nov17-M LLSM 21-Nov LLSM-28Nov17-M LLSM 28-Nov LLSM-7Dec17-M LLSM 7-Dec NNO-24Oct17-M NNO 24-Oct NNO-30Oct17-M NNO 30-Oct NNO-1Nov17-M NNO 1-Nov NNO-7Nov17-M NNO 7-Nov NNO-17Nov17-M NNO 17-Nov NNO-21Nov17-M NNO 21-Nov NNO-13Dec17-M NNO 13-Dec WA-11Oct17-M WA 11-Oct WA-16Oct17-M WA 16-Oct WA-23Oct17-M WA 23-Oct WA-30Oct17-M WA 30-Oct WA-6Nov17-M WA 6-Nov WA-14Nov17-M WA 14-Nov WA-20Nov17-M WA 20-Nov WA-27Nov17-M WA 27-Nov WB-11Oct17-M WB 11-Oct WB-16Oct17-M WB 16-Oct WB-23Oct17-M WB 23-Oct WB-30Oct17-M WB 30-Oct WB-6Nov17-M WB 6-Nov WB-20Nov17-M WB 20-Nov

86 Table 72 Weekly ph / Conductivity Sample ID Site Date ph Cond (us/cm) QRDS1-11Oct17-M QRDS1 11-Oct QRDS1-16Oct17-M QRDS1 16-Oct QRDS1-23Oct17-M QRDS1 23-Oct QRDS1-30Oct17-M QRDS1 30-Oct QRDS1-6Nov17-M QRDS1 6-Nov QRDS1-14Nov17-M QRDS1 14-Nov QRDS1-20Nov17-M QRDS1 20-Nov QRDS1-27Nov17-M QRDS1 27-Nov IR1-12Oct17-M IR1 12-Oct IR1-23Oct17-M IR1 23-Oct IR1-30Oct17-M IR1 30-Oct IR1-7Nov17-M IR1 7-Nov IR1-12Dec17-M IR1 12-Dec IR6-12Oct17-M IR6 12-Oct IR6-18Oct17-M IR6 18-Oct IR6-23Oct17-M IR6 23-Oct IR6-30Oct17-M IR6 30-Oct IR6-7Nov17-M IR6 7-Nov IR6-12Dec17-M IR6 12-Dec IR8-12Oct17-M IR8 12-Oct IR8-18Oct17-M IR8 18-Oct IR8-23Oct17-M IR8 23-Oct IR8-30Oct17-M IR8 30-Oct IR8-7Nov17-M IR8 7-Nov IR8-12Dec17-M IR8 12-Dec IRQR-12Oct17-M IRQR 12-Oct IRQR-23Oct17-M IRQR 23-Oct IRQR-30Oct17-M IRQR 30-Oct IRQR-7Nov17-M IRQR 7-Nov IRQR-12Dec17-M IRQR 12-Dec SQR-12Oct17-M 7SQR 12-Oct SQR-18Oct17-M 7SQR 18-Oct SQR-23Oct17-M 7SQR 23-Oct SQR-30Oct17-M 7SQR 30-Oct SQR-7Nov17-M 7SQR 7-Nov SQR-12Dec17-M 7SQR 12-Dec S-24Oct17-M 7S 24-Oct S-17Nov17-M 7S 17-Nov S-4Dec17-M 7S 4-Dec LWO-24Oct17-M LWO 24-Oct LWO-30Oct17-M LWO 30-Oct LWO-7Nov17-M LWO 7-Nov LWO-17Nov17-M LWO 17-Nov LWO-21Nov17-M LWO 21-Nov

87 Table 73 Relative Percent Difference (RPD) Greater than 20% Station Code Date Param.Code Units Result 1 Result 2 RPD 5 X DL IR6 18-Oct-17 Zr-D mg/l IR6 18-Oct-17 Cu-D mg/l IR6 18-Oct-17 Mn-T mg/l LQL1 2-Nov-17 Turb NTU MQL1 8-Nov-17 Cu-D mg/l MQL1 8-Nov-17 Al-D mg/l MQL1 8-Nov-17 Al-T mg/l MW001D 7-Dec-17 Cu-D mg/l NNL1 19-Oct-17 Cu-T mg/l NNL1 16-Nov-17 Pb-T mg/l NNL1 16-Nov-17 Cd-T mg/l NNL1 16-Nov-17 Zn-T mg/l NNL1 16-Nov-17 Mn-T mg/l NNL1 16-Nov-17 Al-T mg/l QU0813A 13-Dec-17 Al-D mg/l QU0813A 13-Dec-17 S2-T mg/l QU0813A 13-Dec-17 H2S mg/l QU0813A 13-Dec-17 N-D mg/l QU0813A 13-Dec-17 P-D mg/l QU1013D 6-Dec-17 DOC mg/l QU1109S 19-Dec-17 Carb mg/l QU1109S 19-Dec-17 Alk-PP mg/l QU1109S 19-Dec-17 H2S mg/l QU1109S 19-Dec-17 S2-T mg/l QU Nov-17 Cu-D mg/l QU Nov-17 Turb NTU QU Nov-17 P-D mg/l

88 TABLE 74 Precipitation (mm) Date April May June July August September October November December Monthly Total Quarterly Total

89 Appendix II Long Lake Seep Passive Treatment System & Loading Assessment 2 nd & 3 rd Quarter 2017/2018 Prepared for: Ministry of Environment & Ministry of Energy and Mines Prepared by: February 2018

90 2

91 Contents 1.0 Summary Methods and Limitations Results Long Lake Seep Passive Treatment System BDS Permit Compliance Loading into Long Lake Sulphate Iron Arsenic Current and Future Strategies Carbon Amendment System Future Plans List of Figures Figure 1: Inflow Pumping Rates... 9 Figure 2: Dissolved Sulphate Figure 3: Relative Sulphate Removal Figure 4: Sulphide Figure 5: Total and Dissolved Arsenic Figure 6: Total and Dissolved Iron Figure 7: Total Manganese Concentrations Discharge Figure 8: Discharge and Loading into Long Lake from Q2 and Q Figure 9: Monthly Precipitation and Loading Discharge Figure 10: Average Monthly Dissolved Sulphate Loading by Point Source Figure 11: Monthly Percent Load by Point Source - Dissolved Sulphate Figure 12: Average Monthly Dissolved Sulphate Concentrations by Point Source Figure 13: 5 in 30 Average Dissolved Sulphates - Long Lake Figure 14: Average Monthly Dissolved Iron Loading by Point Source Figure 15: Monthly Percent Load by Point Source - Dissolved Iron Figure 16: Average Monthly Dissolved Iron Concentrations by Point Source Figure 17: Average Monthly Dissolved Arsenic Loading by Point Source Figure 18: Monthly Percent Load by Point Source - Dissolved Arsenic Figure 19: Average Monthly Dissolved Arsenic Concentrations by Point Source Figure 20: Carbon Amendment System

92 1.0 Summary In accordance with Mine Permit condition 3(b) (approving the Long Lake Seep Passive Treatment System) and the Ministry of Environment Authorization to Bypass the Works, is a report summarizing the operation of the treatment system, monitoring at the downstream site BDS, and aggregate loading into Long Lake from mine-related discharges for the second and third quarters (Q2 & Q3) monitoring year, covering July 1, 2017 through December 31, The Long Lake Seep Passive Treatment System (LLST) consists of a series of treatment cells designed to receive mine-water pumped from the 2-South underground workings to reduce Parameters of Interest (POI) concentrations including dissolved sulphate and iron. This system was initiated as part of a remediation plan to limit localized mine-water seepage on the south-side of Long Lake as a result of subsidence caused by mining within close proximity and establishing an evident hydrologic connection. There are numerous seepage sites along this bank and are collectively identified as the Long Lake Seeps with two distinct collection sites in which samples are obtained and flows are quantified. Dewatering of the 2-South workings reduces head pressure on the south side of Long Lake and ultimately reduces seepage. The effectiveness and integrity of this system is evaluated by Quinsam Coal staff with physical inspections, monitoring flow rates and scheduled sampling of chemical and physical parameters. Analytical results provide the most effective means of evaluation and take place once per month at 6 sites associated with the treatment system. In addition to monthly monitoring for the entire treatment system, SP-Eff and BDS are monitored on a weekly basis during periods of discharge at SPD for Total Suspended Solids (TSS) and dissolved sulphate. The loading assessment employs a series of calculations to determine the aggregate loading for POI including: dissolved arsenic, dissolved iron, and dissolved sulphate. This data is generated from routine water quality monitoring and flow monitoring at point source discharge locations including: the LLST, the Long Lake Seeps and Settling Pond #1 (SPD). To ensure accurate quantification, flow rates are recorded and water samples are collected at regular intervals to characterize water quality. This report is designed to inform governing bodies on the effectiveness of the LLST and to support Quinsam Coal s long term mitigation strategy on managing the Long Lake Seeps without the treatment system. 4

93 2.0 Methods and Limitations Inspections of the LLST are completed multiple times per week to ensure the system is operating as designed. Any unusual observations are noted and maintenance is conducted as needed. Once per month, physical and chemical parameters are measured and analyzed throughout 6 locations including: Water pumped into the system from the 2-South mine-pool ( inflow or INF) In the biochemical reactor (BCR) where sulphate is biochemically reduced to sulphide The sulphide polish cell (SPC) in which sulphide is sequestered by sacrificial iron The aerobic lagoon (AL) where dissolved oxygen is diffused into the water removing excess nutrients and precipitating metals The system settling pond (SP) in which suspended materials settle out A location 100m downstream of the confluence from settling pond #1 (SPD) and SP effluent mixing known as Biocell downstream (BDS) A multiparameter sonde is used by on-site personnel to obtain ph, conductivity, dissolved oxygen (DO) and oxidation reduction potential (ORP) to compliment water chemistry results analyzed by the contracted laboratory Maxxam Analytics. As complete results are obtained only once per month, it is possible that system performance is not represented completely as small biochemical and operational changes may be missed between sampling events. However, a complete dataset using monthly sampling events throughout operations since 2012 have indicated predictable trends that describe system operations and overall effectiveness. The LLST design is open to the atmosphere where it is conceivable that precipitation may dilute water within the system affecting monitoring results. Adversely, low precipitation during the summer and increased temperatures may evaporate water from the system prior to discharge resulting in higher observed POI concentrations and ultimately, calculated reduction efficiency. Flow rate is only captured at the pumping station into the first portion of the system and losses or gains encountered through the system aren t necessarily realized. On May 12, 2017, the two final treatment cells (AL & SP) within the LLST were bypassed and system effluents from SPC were diverted into the 2-South PAG-CCR storage facility via the inlet channel. This bypass was continued until October For the purpose of this report and for simplicity in graphs, all treatment system discharges have been called SPeff. Upon diligent review of past laboratory analyses from SPC effluents, it was determined that water quality was consistently within permit limits for the South Water Management System. Three significant benefits were realized with bypass of the treatment cells including: addition of water into the 2-South PAG-CCR storage facility; reduced oxidation of sulphur 5

94 compounds into sulphides; and reduced efforts in sampling and maintenance. During the warm, dry periods in the summer, water levels in the 2-South PAG-CCR storage facility decline and risk falling below the required levels needed for subaqueous PAG storage. The additional water ported from the treatment system provides additional cover into this facility. As described later in this document, sulphur bearing materials discharged into the AL typically oxidize into sulphate thus decreasing system performance. By eliminating that portion of the treatment system and sampling at the SPC effluent pipe, system performance appears to improve while providing a more representative sampling location than used before. In addition to the operational benefits realized, elimination of two treatment cells minimizes efforts in both system maintenance and sampling efforts. It is unclear whether the bypassing of these treatment cells will be a permanent change to the water management system as introduction of treatment system water into 2-South will have an effect on water balance and water quality predictions. Potential expansion of the current treatment system and future permitting of discharges from the 2 & 3 South PAG-CCR storage facilities into the No Name Lake connector stream may necessitate restarting the two treatment cells. Loading assessment results are generated using monthly averages for both flow measurements and POI concentrations. Water quality sampling is performed on weekly and monthly intervals with dissolved metals sampled monthly and sulphate sampled weekly. To ensure consistency, average monthly sulphate values are calculated using weekly results to synchronize with metal sampling. Together, flow rate (L/s) and POI concentrations (mg/l) are used to calculate overall load in kilograms (kg) for the desired parameter and time period at each point source. The equation used to quantify load is expressed as: Load (kg) = Q x T x C / 1000 Q represents the average monthly flow in L/s T represents the total time (in seconds) for the month C represents the average monthly concentration in mg/l for the parameter of interest The concentrations used for calculation may not fully represent monthly discharges as dynamic changes can occur within the system between sampling events. Concentrations are input using the instantaneous results obtained from grab samples and it is impractical to increase sampling frequency. Additionally, short-term hydrologic changes within the system may not necessarily be observed due to flow rates input as monthly averages (derived from continuous or weekly readings). 6

95 The collection of dissolved metals samples throughout monitoring of the treatment system and loading calculations from July, 2013 to May 2017 was completed without the usage of on-site filtering and preservation. Upon review of water quality data at various sites, it was suspected that the usual practice of submitting raw water for the laboratory to process may not yield representative results for the dissolved portion of metals analysis. Numerous experiments were conducted that measured differences between laboratory filtering and on-site filtering in side by side sampling. Results indicated that many dissolved metals samples results were biased low (especially iron) when filtering was not performed immediately on site. As dissolved iron is a redox sensitive parameter, it is conceivable that dissolved iron present at the time of collection oxidizes and converts to particulate that cannot pass through the filter at the laboratory. The differences in reported iron concentrations were often significant with on-site preservation yielding values that were often hundreds of times higher than the laboratory prepared samples. This finding poses a significant concern with respect to metals loading into Long Lake from point sources used in this document and reduction within the treatment system. From May, 2017 onward, all dissolved metals samples obtained on-site are filtered using laboratory grade, disposable equipment and preserved immediately. The aforementioned limitations need to be considered when evaluating loading from a quantitative (and qualitative) standpoint. Quinsam Coal is committed to ensuring that the most reliable and accurate data is collected and continuously evaluates and improves monitoring procedures to best supplement this assessment. Examples include: strict quality control; consistent, representative sampling techniques; flow calibration and verification at measurement sites; frequent inspections at discharge locations; and removing accumulated sediment at weir devices to ensure laminar flow across monitoring structures. 3.0 Results 3.1 Long Lake Seep Passive Treatment System Charts 1 through 19 illustrate and provide detailed comments on the treatment system performance including physical parameters, flow rates and chemical parameters since commencement of the system in late A summary of observations include: System flow rate remained at 4.0 L/s throughout majority of the two quarters ph throughout the system remained suitable in each respective cell ORP values observed at BCR displayed seasonal variations with higher values during cooler, less productive periods and lower during warmer months. As a whole, ORP values have appeared increase in the BCR over the past two years 7

96 Conductivity values were variable and highly dependent on inflow levels and precipitation The aerator and mixers were successful in diffusing dissolved oxygen to the system when used Sulphate reductions through the system calculated using monthly sulphate concentrations at the influent and system effluent were: 327 mg/l with a reduction efficiency of 62.4% in July; 318 mg/l with a reduction efficiency of 61.2% in August; 123 mg/l with a reduction efficiency of 23.4% in September; 134 mg/l with a reduction efficiency of 24.4% in October; 232 mg/l with a reduction efficiency of 45.0% in November; and mg/l with a reduction efficiency of 26.5% in December. Using flow rates through the treatment system and average monthly reduction in dissolved sulphate, it was calculated that approximately 13,450 kg of sulphate was removed from potentially entering Long Lake via the seeps from July 1 - December 31,

97 Figure 1: Inflow Pumping Rates 9

98 Figure 2: Dissolved Sulphate 10

99 Figure 3: Relative Sulphate Removal 11

100 Figure 4: Sulphide 12

101 Figure 5: Total and Dissolved Arsenic 13

102 Figure 6: Total and Dissolved Iron 14

103 Figure 7: Total Manganese Concentrations Discharge 15

104 3.2 BDS Permit Compliance See Appendix I Table 15 Analytical results obtained from sampling at BDS indicate compliance with all permit limits in Q2 and Q3 2017/18. Sampling was not required after May 18 th as discharge from the treatment system into BDS ceased on May 12 th, 2017 and commenced with discharge from SPD in November 6 th, Loading into Long Lake Figure 8 displays the total discharge (m 3 ) and loading (kg) into Long Lake from each point source including relative percentages of aggregate load for Q2 & Q3. The high iron and arsenic concentrations are a direct result of sampling methodology as mentioned in Section 2 of this report. The high iron and arsenic found within SPD waters is thought to be largely dependent on dewatering of the 5-South mine. Site Total Discharge (m 3 ) Site Arsenic Iron Sulphate Seeps 202,850 SPeff 63,590 Seeps % of Total Seeps Load (kg) SPeff % of Total SPeff Load (kg) 24.1% 56.0% 50.6% , % 2.7% 14.0% , SPD 253,619 Total Discharge (m 3 ) SPD % of Total SPD Load (kg) 520,059 Total Load (kg) 51.9% 41.3% 35.4% , ,503 Figure 8: Discharge and Loading into Long Lake from Q2 and Q3 Discharge at SPD is a result of seasonal precipitation, local runoff as well as runoff into the 2/3-South PAG/CCR storage facilities from which excess water is directed into SPD. Additionally, water levels in the 16

105 Oct-12 Dec-12 Feb-13 Apr-13 Jun-13 Aug-13 Oct-13 Dec-13 Feb-14 Apr-14 Jun-14 Aug-14 Oct-14 Dec-14 Feb-15 Apr-15 Jun-15 Aug-15 Oct-15 Dec-15 Feb-16 Apr-16 Jun-16 Aug-16 Oct-16 Dec-16 Feb-17 Apr-17 Jun-17 Aug-17 Oct-17 Dec-17 Monthly Precipitation (mm) Average Monthly Discharge (m 3 /s) flooded 5-South mine workings were historically managed during periods of high precipitation by pumping excess into SPD. This occurred in late November through to mid-december when 5-South mine water was directed into the 2-North mine pool after a permanent dewatering well was installed into 5-South. Loading from the seeps fluctuates seasonally as a result of water levels in the 2-South mine-pool and precipitation. It has been determined that seep flow and mine pool water elevations are correlated while water elevations in the 2-South mine workings are influenced by precipitation and pumping into the LLSTS. Figure 9 demonstrates the relationship between site precipitation and total discharge while Figures 10, 11 and 12 depict the relationship between overall loading and discharge. SPeff loading is driven exclusively by POI concentrations as flow through the system is controlled Monthly Precipitation & Average Monthly Discharge Sum Discharge Sum (m^3/s) Precipitation Figure 9: Monthly Precipitation and Loading Discharge Sulphate Seasonal trending for sulphate loading is evident, and is primarily driven by the quantity of water discharged; largely from SPD and to a lesser extent, the Seeps. During the fall flush and spring freshet, 17

106 Oct-12 Jan-13 Apr-13 Jul-13 Oct-13 Jan-14 Apr-14 Jul-14 Oct-14 Jan-15 Apr-15 Jul-15 Oct-15 Jan-16 Apr-16 Jul-16 Oct-16 Jan-17 Mass (kg) Discharge (m 3 /s) precipitation (and snow-melt) increases the decant volume resulting in a cumulatively higher monthly loading. During the summer low flow period, discharge is significantly reduced (ceased at larger seep and often at SPD) and consequently, loading is significantly reduced as well. Sulphate concentrations observed at SPD are largely variable due to dilution from precipitation and runoff whereas sulphate concentrations at the seeps are less variable. Sulphate loads at SPeff however, are driven almost exclusively by concentrations found within the pumped mine water and system reduction efficiency as flow through the system are regulated and stable. Reduced loading from SPeff during higher ambient temperatures are a direct result of increased sulphate reduction efficiency within the treatment system. Based on observation, SPD contributes the highest percent of sulphate loads annually although there are periods where monthly loading from the Seeps is higher usually do to lower concentrations in SPD. Figure 10 highlights the percent load by point source for sulphate. 200,000 Average Monthly Dissolved Sulphate Loading by Point Source , , , , Discharge Sum (m3/s) Seeps SPeff SPD Total (LLS + LLSM + Speff + SPD) Figure 10: Average Monthly Dissolved Sulphate Loading by Point Source 18

107 Dissolved Sulphate (mg/l) Mar-12 Jun-12 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Percentage of Total Load Discharge (m 3 /s) Monthly Percent Load by Point Source - Dissolved Sulphate Discharge Sum (m3/s) Seeps % SPeff % SPD % Figure 11: Monthly Percent Load by Point Source - Dissolved Sulphate 800 Average Sulphate Concentrations by Point Source SPD SPeff Seeps Figure 12: Average Monthly Dissolved Sulphate Concentrations by Point Source As depicted in Figure 12, sulphate concentrations exiting the treatment system have declined throughout Q1 and increased through Q2 & Q3 as system reduction fluctuates with temperature increases. Concentrations of sulphate at the seeps and SPD are dependent on discharge and precipitation. Sulphate fluctuates with increases in mine pool elevations and discharge rates. 19

108 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Dissolved Sulphate (mg/l) Sulphate concentrations in Long Lake in Q2 &3 have remained steady with little change in the bottom depth since The other depths measured tend to be more dynamic and fluctuate with precipitation and exhibit different thermal stratification profiles observed in different seasons and years. It is noted that sulphate concentrations in Long Lake are higher in Q2 & Q3 compared to previous years, most likely attributed to the seep flowing up until mid-august this year. The deeper portions of the lake remain similar throughout seasons and years regardless of perception indicating there little turn over at depth in 30 Average Dissolved Sulphate - Long Lake WQG-Av: 128mg/L LLM 1m LLM 4m LLM 9m LLM 1m from Bottom Figure 13: 5 in 30 Average Dissolved Sulphates - Long Lake Iron Similar to the seasonal trends identified with sulphate, iron loading is also mainly driven by discharge. Dissolved iron concentrations can be somewhat dynamic with occasional peaks but have remained consistently low throughout the last three years. It has been observed that iron concentrations do rise in SPD during months with high precipitation and run-off. This has been attributed to dewatering efforts in the 5-South mine that are directed to SPD that have been analyzed and reported with elevated iron 20

109 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Mass (kg) Discharge (m3/s) concentrations. Since startup of the LLST, concentrations of dissolved iron have decreased significantly at SPeff and remain at low levels (Figure 14). Concentrations of iron discharged from the LLST are reduced relative to levels observed in water entering the system and are thought to be precipitated in the media or at the aerobic polish cell. Total and dissolved iron levels have remained well below water quality guidelines in Long Lake at all monitored depths. Future monitoring and using on site filtering will be critical to determine significance of iron loading from mine site activities. Figure 14 displays the difference that can be expected when using on site filtering at a location like the seeps (blue line) mg/l Average Monthly Dissolved Iron Loading by Point Source Discharge Sum (m3/s) Seeps SPeff SPD Total (LLS + LLSM + Speff + SPD) Figure 14: Average Monthly Dissolved Iron Loading by Point Source 21

110 Mar-12 Jun-12 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Dissolved Iron (mg/l) Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Percentage of Total Load Discharge (m 3 /s) Monthly Percent Load by Point Source - Dissolved Iron Discharge Sum (m3/s) Seeps % SPeff % SPD % Figure 15: Monthly Percent Load by Point Source - Dissolved Iron Average Monthly Dissolved Iron Concentrations by Point Source SPD SPeff Seeps Figure 16: Average Monthly Dissolved Iron Concentrations by Point Source Arsenic Arsenic loading in Long Lake from the point sources is deemed to be insignificant. Figures 17 and 18 display point source loading and percent load indicating that amounts of arsenic discharged into Long 22

111 Sep-12 Dec-12 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Percentage of Total Load Discharge (m^3/s) Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Mass (kg) Discharge (m 3 /s) Lake are minimal. Along with iron, future monitoring and on site filtering will be important tools to determine if mine site activities have detrimental effects on the lake Monthly Dissolved Arsenic Loading by Point Source Discharge Sum (m3/s) Seeps SPeff SPD Total (LLS + LLSM + Speff + SPD) Figure 17: Average Monthly Dissolved Arsenic Loading by Point Source Monthly Percent Load by Point Source - Dissolved Arsenic Discharge Sum (m3/s) Seeps % SPeff % SPD % Figure 18: Monthly Percent Load by Point Source - Dissolved Arsenic 23

112 Mar-13 Jun-13 Sep-13 Dec-13 Mar-14 Jun-14 Sep-14 Dec-14 Mar-15 Jun-15 Sep-15 Dec-15 Mar-16 Jun-16 Sep-16 Dec-16 Mar-17 Jun-17 Sep-17 Dec-17 Dissolved Arsenic (mg/l) Average Monthly Dissolved Arsenic Concentrations by Point Source SPD SPeff Seeps Figure 19: Average Monthly Dissolved Arsenic Concentrations by Point Source Going forward, this assessment will provide valuable monitoring information and potential opportunities to mitigate cumulative loading for POI in Long Lake. This assessment will support the permit application for the 2-3 South discharge into Long Lake as well as assess the need for the Treatment system. 4.0 Current and Future Strategies 4.1 Carbon Amendment System Previous bench scale testing for the treatment system has highlighted the potential for increased sulphate reduction and/or higher flow rates through the system. Detailed results from this testing was submitted in previous quarterly treatment system reports and can be provided upon request. Ongoing work to improve the efficiency of the LLST includes the recent (May, 2016) addition of a carbon amendment system. The carbon amendment system that has been commissioned injects molasses into the BCR cell influent at a current rate of approximately 100 litres per week. The potential benefits being assessed are: Improving sulphate reduction and minimizing loading into Long Lake Increasing the life of the substrate in the bio-chemical reactor cell (BCR cell) 24

113 Figure 20: Carbon Amendment System Overall sulphate reduction through the LLST since the molasses addition began has shown variable results with respect to previous year s and month to month performance. 4.2 Future Plans While the treatment system has demonstrated to be a reliable mechanism for the reduction of sulphate in mine-impacted water, the system has shown inconclusive effects on reducing flow rates at the seep and reducing sulphate concentrations in Long Lake. With the objective of reducing or stopping flow rates at the seeps and reducing loading into Long Lake, further concepts have been discussed that may be more effective. A tentative plan has been outlined that involves drilling into the mine void near the seeps and grouting areas underground. The objective of this concept would be to create a barrier between the gob and the subcrop near Long Lake at the seeps. This method would likely require multiple stages where additional 25