Nyrstar Myra Falls Mine Annual Water Quality Report 2015€¦ · 21/3/2016 · ANNUAL WATER...

Nyrstar Myra Falls Mine

Annual Water Quality Report 2015 Submitted as required under Effluent Permit PE-06858 for the BC MoE Revised March 31, 2016

1

NYRSTAR MYRA FALLS MINE 0 ANNUAL WATER QUALITY REPORT 2015 0 INTRODUCTION 3 Scope of Report 3 Nyrstar Myra Falls Overview 3 Regional Environmental/Ecological Conditions 4

Location and Topography 4 Myra Creek Drainage System 5 Climate 6 2015 Weather 7 Tailings Disposal Facilities 9 Lime Addition Water Treatment System 9

WATER QUALITY MONITORING 10 Sampling Methodology 12

Daily Composite Monitoring 12 Surface Grab Samples 12 Depth Profile Samples (Buttle Lake) 12

Results by Parameter of Concern 12 Total Zinc 14

Monthly / Quarterly Zinc 14 Daily Zinc 15

Total Copper 18 Monthly / Quarterly Copper 18 Daily Copper 20

Dissolved Aluminum 21 Total and Dissolved Iron 21 Dissolved Cadmium 23 Dissolved Sulphate 26 Nutrients 26 Effluent Flow Monitoring 27 Sewage Treatment Plants 29 Buttle Lake 30

Total Zinc 31 Total Copper 32 Total Cadmium 33

EVENT OUTSIDE OF NORMAL OPERATIONAL PARAMETERS 35 CONCLUSIONS 36

2

Table of Figures FIGURE 1: REGIONAL LOCATION OF MYRA FALLS MINE ................................................................................................ 4 FIGURE 2: GENERAL SITE PLAN ...................................................................................................................................... 6 FIGURE 3: TOTAL ANNUAL PRECIPITATION 1979 – 2015 .............................................................................................. 7 FIGURE 4: MONTHLY RAINFALL FOR PREVIOUS 10 YEARS WITH START TO DATE AVERAGE RAINFALL TREND ............ 8 FIGURE 5: CUMULATIVE PRECIPITATION ....................................................................................................................... 9 FIGURE 6: DAILY ZINC RESULTS .................................................................................................................................... 16 FIGURE 7: DAILY ZINC CONCENTRATIONS - SCALE CHANGED FOR DETAILED VIEW ................................................... 17 FIGURE 8: 10-YEAR ZINC CONCENTRATIONS IN RECEIVING ENVIRONMENT .............................................................. 18 FIGURE 9: COMPOSITE COPPER RESULTS .................................................................................................................... 20 FIGURE 10: 10 YEAR CADMIUM CONCENTRATIONS .................................................................................................... 25 FIGURE 11: 7 YEAR CADMIUM CONCENTRATIONS ...................................................................................................... 25 FIGURE 12: FLOW IN MYRA CREEK AND EFFLUENT IN 2015........................................................................................ 28 FIGURE 13: PERCENTAGE OF MYRA CREEK FLOW DIRECTLY ASSOCIATED WITH EFFLUENT ....................................... 29 FIGURE 14: HENSHAW LOCATION - BUTTLE LAKE 2006 – 2015 .................................................................................. 31 FIGURE 15: TOTAL ZINC AT KARST CREEK BUTTLE LAKE - 2006-2015.......................................................................... 31 FIGURE 16: TOTAL COPPER CONCENTRATIONS AT HENSHAW CREEK IN BUTTLE LAKE 2006-2015 ............................ 32 FIGURE 17: TOTAL COPPER CONCENTRATIONS AT KARST CREEK IN BUTTLE LAKE 2006-2015 ................................... 33 FIGURE 18: TOTAL CADMIUM CONCENTRATIONS IN BUTTLE LAKE AT HENSHAW 2006-2015 ................................... 34

Table of Tables TABLE 1: MONITORING LOCATIONS ............................................................................................................................ 11 TABLE 2: PE06858 - SECTION 3 SAMPLING REQUIREMENTS ....................................................................................... 11 TABLE 3: PERMITTED EFFLUENT CONCENTRATIONS ................................................................................................... 13 TABLE 4: TOTAL ZINC CONCENTRATIONS ALL MONITORING LOCATIONS ................................................................... 14 TABLE 5: MONTHLY / QUARTERLY GRAB SAMPLE COPPER CONCENTRATIONS .......................................................... 19 TABLE 6: DISSOLVED ALUMINUM CONCENTRATIONS IN MONTHLY GRAB SAMPLES ................................................. 21 TABLE 7: TOTAL IRON CONCENTRATIONS IN GRAB SAMPLES 2015 ............................................................................ 22 TABLE 8: DISSOLVED IRON IN GRAB SAMPLES 2015.................................................................................................... 23 TABLE 9: SUMMARY OF DISSOLVED CADMIUM IN GRAB SAMPLES 2015 ................................................................... 24 TABLE 10: DISSOLVED SULPHATE CONCENTRATIONS 2015 ........................................................................................ 26 TABLE 11: QUARTERLY EFFLUENT GRAB SAMPLE RESULTS ......................................................................................... 27 TABLE 12: QUARTERLY GRAB SAMPLE RESULTS FOR SEWAGE TREATMENT PLANTS ................................................. 29 TABLE 13: SUMMARY OF REPORTABLE SPILLS, EXCURSIONS AND OTHER UNUSUAL EVENTS ................................... 35

3

Introduction

Scope of Report

The following report details the environmental monitoring activities under effluent permit PE-06858 issued under the Environmental Protection Act and administered by the British Columbia Ministry of Environment (BC MoE) at the Myra Falls Mine for calendar year 2015. The report includes a review and interpretive report as required under PE-06858 Section 3.6, a summary of unusual events occurring on site in 2015, a discussion on the changes in the environment resulting from mining activity; and a projection of significant activities planned for 2016. Shannon Campbell, General Manager 250-287-9271 (3279) [email protected]

Nicole Pesonen, Environmental Manager 250-287-9271 (3316) [email protected]

Nyrstar Myra Falls Overview

Nyrstar is an integrated mining and metals business based in Europe with corporate offices in Zurich, Switzerland, with market leading positions in zinc and lead, and growing positions in other base and precious metals. The company has mining, smelting, and other operations located in Europe, the Americas, China and Australia. Nyrstar is listed on NYSE Euronext Brussels under the symbol NYR. Nyrstar Myra Falls (NMF) is a wholly-owned subsidiary of Nyrstar. Myra Falls is a wholly owned subsidiary of Nyrstar; it is a 525,000 tonne per year base metal mine located at the south end of Buttle Lake on Vancouver Island within the Strathcona Provincial Park Class ‘B’ boundary (Figure 1), 90 km southwest of the city of Campbell River. The mining and milling operation produces zinc, copper and lead concentrates with silver and gold credits. Ore concentrate is trucked to a port terminal in Campbell River where it is shipped to refining smelters around the world. The mine has been operating since 1966; as of December 31st 2015 the mine is in a state of suspended milling and mining operations.

4

Figure 1: Regional Location of Myra Falls Mine

Regional Environmental/Ecological Conditions

Location and Topography The footprint of the Nyrstar Myra Falls mine site straddles the Myra Valley and the lower reaches of Myra Creek. Myra Creek flows from west to east through a steep-sided hanging valley and discharges over Myra Falls into Buttle Lake. Three main tributaries feed Myra Creek within the site boundaries: Tennent Creek and Webster Creek from the south side and Arnica Creek from the north side. Also draining from the north side is the Lynx Diversion Ditch, an engineered water channel which runs along the northern perimeter of the site, diverting clean water away from the waste rock piles and tailings impoundment facilities. The slopes of Myra Valley climb steeply with an average gradient of 1.5H:1V. To the south, the slope rises to 1814 m at the summit of Mount Myra from the average valley bottom elevation of 307 meters above sea level (MASL). Topography in the area exerts a strong influence on air mass movement and wind directions. Winds blow predominantly along the axis of the Myra Valley. At

5

night, air masses are drawn down the mountains, continue along the valley floor and out over Buttle Lake. During the day, winds up cast along the mountainsides with air masses typically moving up the valley. Wind velocities at Nyrstar Myra Falls are generally low, typical of sites in protected valleys.

Myra Creek Drainage System Myra Creek has a total length of 16 km and drains an area of 72 km2 into Buttle Lake. Myra Creek and its tributaries are characterized by steep, cascading mountain streams bounded by rock. The creek descends in elevation from 1 814 m to 221 m at Buttle Lake. Its three major tributaries are Tennent Creek, Arnica Creek and Webster Creek. Myra Creek flow is monitored at the “Car Bridge” with a pressure transducer and data logger system (Figure 2) . The system logs creek-stage measurements at 15 minute intervals. Stage measurements are converted to flow using a stage-discharge curve calculation. See Appendix A for Flow monitoring data.

6

Figure 2: General Site Plan

Figure 2

7

Climate The climate in the Myra Valley and surrounding areas is classified as Marine West Coast as per the Köppen Climate Classification System. Weather patterns are typical of other coastal regions of British Columbia. Frequent fronts from the Pacific Ocean and Gulf of Alaska combine with orographic influences to produce abundant precipitation. Prevailing westerly winds and the moderating influence of the Pacific Ocean result in generally mild winters and warm summers, producing a relatively narrow annual temperature range. Freezing conditions can be expected to occur anytime from October through May. Records indicate that the site should average 160 frost-free days per year. Myra Falls has been operating an Environment Canada weather station since 1979. The weather station is located outside the Powerhouse at approximately 360 MASL. An automated weather station/data logger is used in conjunction with the Powerhouse weather station. This data is used for storm event logging, as the monitoring equipment records data with greater frequency and precision.

Figure 3: Total Annual Precipitation 1979 – 2015

2015 Weather The weather at Myra Falls in 2015 was highly variable when compared to the norm for the area.

0

500

1000

1500

2000

2500

3000

3500

4000

Ann

ual P

reci

pita

tion

(mm

)

Annual Precipitation (1979-2015)

Total AnnualPrecipitation (mm)

Multi-year average(2530.3 mm)

8

Overall in 2015 the total rainfall for the area was slightly higher than average, at 2844.7 mm and 2530.3 mm respectively. Myra Falls experienced a wet spring, fall and winter and dry summer, as would be expected in the area. There were several months where the average precipitation as measured was significantly different (more than one standard deviation from the mean) than the calculated norm over the last 37 years, resulting in water quality impacts seen throughout the system, both within the vicinity of the Myra Falls Mine, as well as upstream. Figure 4 depicts the monthly weather as compared to the 37 year average and the previous 10 years of recorded precipitation.

Figure 4: Monthly Rainfall for Previous 10 Years with start to date average rainfall trend

The year started with a warmer than average winter, a very low snow pack and a slightly drier than average January. February and March were wetter than the norm, with significantly higher precipitation in March than the average precipitation recorded for that month in the last 37 years. 55.3% of the precipitation in February was recorded in a single event over a 48 hour period (February 5, 108 mm and February 6, 78.3 mm); had this event not occurred, the month of February would have been drier than average, much like January. April through early August was very dry, with June significantly below the average rainfall. Two rain events occurred in the month of August that resulted in monthly precipitation totals significantly higher than mean monthly values; these events are associated with significant water quality impacts in Myra Creek, which are discussed in further detail later in this report. September and December were also significantly wetter than the norm for the area, while October and November reported

0

100

200

300

400

500

600

700

800

900

1000

Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec

Mon

thly

Pre

cipi

tatio

n (m

m)

Monthly Precipitation and Multi-year Average Previous 10 Years Data with 37 Year Monthly Average

2006200720082009201020112012201320142015Mean

9

average precipitation. Figure 5 depicts the cumulative precipitation by day in 2015, and highlights events that are discussed in more detail in the Water Quality Monitoring section and Flow Monitoring section of this report. Tabulated data from 1979 to date and the detailed daily weather summary for 2015 are included in Appendix B.

Figure 5: Cumulative Precipitation

Site Infrastructure

Tailings Disposal Facilities From 1967-1984 tailings were deposited sub-aqueously into the south end of Buttle Lake. Since 1984 the mine has utilized a surface tailings disposal facility (TDF) for its tailings impoundment. In 2008, a newly constructed Lynx TDF became the main depository for tailings, replacing the Old TDF which had reached full capacity. Presently, the Lynx TDF has storage capacity for approximately 10 years of production with planned mining rates.

Lime Addition Water Treatment System The water treatment system at Myra Falls collects and treats contaminated groundwater, surface runoff, mill effluent, tailings decant water, mine water and sewage treatment plant effluent. Contaminated water is directed to the primary reaction pond, the Superpond, where the pH is increased to 10-10.5 through the addition of lime slurry (Ca(OH)2). The elevated pH causes metals

0.0

500.0

1000.0

1500.0

2000.0

2500.0

3000.0

0

20

40

60

80

100

120

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Rain

(mm

)

2015 Precipitation

Rain (mm/day)

Snow (mm rainfallequivelent/day)

Cumulative Precipitation includes snowfall as estimated rain equivalent in millimetres

10

to become insoluble and precipitate out of solution primarily as metal hydroxide sludge. The Superpond effluent discharges into the Myra Polishing Pond system, consisting of a series of 6 settling ponds that allow any remaining suspended solids to precipitate out of solution and a COpH adjustment system that adjusts the pH back down to 8.3-8.7 and within permitted limits. The treated water is then discharged to Myra Creek via a 30” Parshall flume equipped with an ultrasonic device that continuously monitors flow rates. A flow sheet detailing the water treatment system can be found in Appendix C. In 2015, an estimated 1,296.8 tonnes of lime was used in the milling and water treatment systems. Environmental lime previously was assumed to use 30% of the total annual site (mill) lime consumption to the water treatment system. Myra Falls suspended milling and mining operations in May 2015, and lime use for water treatment consumed similar volumes to lime use prior to the mill shut down. The lime consumption for milling purposes is now understood to benefit the water treatment system during operations and the full volume of lime consumed must therefore be primarily for water treatment. The operation previously estimated reclaim water use to be approximately 15% of the treated effluent for mill use. In 2015, flow monitoring on the reclaim water source became available, and going forward this volume will be reported accurately. Because of the suspension of mining and milling, the reclaim water use was significantly lower than previous years, at a measured 100595.7 cubic meters used.

Water Quality Monitoring The water quality monitoring program at Myra falls is outlined in the Effluent Permit PE-06858 Section 3; monitoring locations are described in Table 1, and sampling frequencies are detailed in Table 2. Results of this monitoring program are discussed in the following sections.

11

Table 1: Monitoring Locations

Site Name / SNR Monitoring Purpose Tailings Impoundment Supernatant SRN: E207740

Monitored for quality to determine compliance with effluent limits as per PE-06858. This water is currently routed to treatment and is not decanted directly from site as it does not comply with permitted effluent chemistry without treatment.

Myra Ponds

MP-EFF SRN: E100666

Monitored for quality to ensure treatment system is operating within expected parameters and to determine compliance with effluent with effluent limits as per PE-06858. This water is monitored at the decant location to Myra Creek.

Price Pond #2 (east side) SRN: E100662

Monitored for quality to determine compliance with effluent limits as per PE-06858. This facility is an infiltration basin, decanting to ground and does not allow surface flow out of the facility as designed.

Myra Creek, M-1 SNR: 0124784

This location serves as the upstream reference site to determine the relative impacts on Myra Creek by the Myra Falls Operations. The hardness as measured at M-1 Monitoring Location is used to determine the hardness based WQG for all Myra Creek Monitoring Sites.

Myra Creek, M-2

SRN: 0124785 This location is the furthest downstream monitoring location in Myra Creek and is downstream of all mine-related inputs. This site is also downstream of the clean-fill quarries used by the mine as reclamation cover materials.

Myra Creek below Pumphouse #4 SRN: E206805

This location is immediately downstream of Pumphouse 4, upstream of the Lower Lynx Diversion Ditch, downstream of the seepage collection system. This site monitors the immediate impacts of the mine to Myra Creek.

Table 2: PE06858 - Section 3 Sampling Requirements

Site Parameter

Myra Creek, M-1

Myra Creek, M-2

Myra Creek below Pumphouse #4

pH Q-G M-G D-C temperature M total zinc Q-G M-G D-C dissolved zinc Q-G M-G M-G total aluminium Q-G Q-G Q-G dissolved aluminium Q-G Q-G Q-G total cadmium M-G M-G dissolved cadmium M-G M-G total copper Q-G M-G D-C dissolved copper Q-G M-G M-G total iron Q-G Q-G Q-G dissolved iron Q-G Q-G Q-G total lead Q-G M-G M-G dissolved lead Q-G M-G M-G total phosphorus M-G total diss. Phosphorus

M-G

Nitrogen (as ammonia)

M-G

Nitrate/nitrite M-G sulphate M-G Site Parameter

Tailings Impoundment Supernatant

Myra Ponds Price Pond (east side)

Flow D pH Q-G Co-R M-G total suspended solids

Q-G M-G

total zinc Q-G D-C M-G dissolved zinc Q-G M-G total copper Q-G D-C M-G dissolved copper Q-G W-G total cadmium Q-G Q-G dissolved cadmium Q-G Q-G total lead Q-G W-G dissolved lead Q-G M-G sulphate Q-G Q-G total nitrogen Q-G Q-G total phosphorus Q-G Q-G toxicity (96 hr LC50) Q-G

12

Sampling Methodology

Daily Composite Monitoring Treated effluent is discharged from a point source location listed in the permit as Myra Ponds or MP-EFF (EMS-ID E100666). This location is sampled daily with a Sigma SD900 composite autosampler, which takes samples every 3 hours (8 aliquots per day). Daily composite sampling of total zinc and total copper are analyzed in-house with an atomic absorption (AA) spectrophotometer. Effluent pH and flow are continuously monitored through an automated continuous logging system, with quality control checks performed by operational personnel every 6 hours. Daily effluent pHs and flow volumes are summarized in Appendix A. Daily composite samples at TP4 are collected using a Sigma 900 autosampler, with one sample taken every 3 hours. Each daily sample is a composite of 8 daily sub-samples. Results are presented in Appendix A.

Surface Grab Samples Grab samples are collected weekly, monthly and quarterly as required by PE-06858. The samples are sent off-site for analyses of total suspended solids (TSS), total and dissolved metals by ICP-MS, sulfate, nitrogen, phosphorus and acute toxicity (96-hr rainbow trout LC50).

Depth Profile Samples (Buttle Lake) A depth profile is developed by collecting grab samples at 20 m intervals of depth with a Van Dorn Sampler. The Henshaw Location is sampled at four depths (surface, or 0, 20, 40 and 60 meters), while the Karst Locations is sampled at six depths (0, 20, 40, 60, 80 and 100 meters).

Results by Parameter of Concern

The Ministry of Environment has requested that Myra Falls provide analysis of results, in particular comparing the receiving environment sample results to the BC Water Quality Guidelines for Freshwater Aquatic Life (WQGs) for the following parameters: total zinc, total copper, dissolved aluminum, total and dissolved iron, total cadmium, dissolved sulfate and nutrients. In instances where a receiving environment sample result has exceeded the applicable guideline in Myra Creek or Buttle Lake, 10-year time-lapse graphs have been provided to demonstrate the changes in parameter concentration over time for monitoring locations downstream of the exceeded parameter. Where possible, both the maximum (acute) and 30-day average (chronic) guidelines are shown as dashed lines on the charts. Most of the water quality samples have been taken at a frequency of less than 5 times in 30 days, and therefore a comparison to the 30-day average (chronic) water quality guideline is not directly

13

applicable. However, the chronic guideline has been included in the charts for reference. Effluent concentration limits are outlined in PE-06858 by authorized discharge location and are summarized in Table 3. Table 3: Permitted Effluent Concentrations

Site Parameter

Tailings Impoundment Supernatant

Myra Ponds Price Pond (east side)

pH 6.5-10 pH Units 6.5-8.5 pH Units Total suspended solids 20 25mg/L* 25mg/L Total suspended solids >110 000 m3/ day flow

50 mg/L

Total Zinc 0.5 mg/L 1.0 mg/L 1.0 mg/L Dissolved Zinc 0.25mg/L 0.5 mg/L 0.5 mg/L Total Copper 0.30mg/L 0.6 mg/L 0.6 mg/L Dissolved Copper 0.10 mg/L 0.2 mg/L 0.2 mg/L Dissolved Cadmium 0.003 mg/L 0.005 mg/L 0.005 mg/L Dissolved Lead 0.030 mg/L 0.05 mg/L 0.05 mg/L Toxicity (96 hr LC50) 100% Parameters that exceed permit limits and/or the BC Water Quality Guidelines (in the receiving environment) are highlighted in bold within the data tables. Tailings supernatant was sampled quarterly; there was insufficient water to allow for sampling during the May and August sampling events. The tailings supernatant is currently treated for pH and metals concentration through the Superpond Lime Addition Treatment System and is not discharged to the receiving environment as it does not meet the permit requirements for direct release. Concentrations of several parameters were elevated at the Myra Upstream Monitoring location, in particular in August 2015. These concentrations may be the result of an upstream impact relating to a rain event occurring August 8 – 10, 2015. It is noted that this was the first rain event over 20 mm in 24 hours to occur after March 30, 2015. Myra Falls’ employees did a helicopter survey of the upper Myra Creek Reach in the fall of 2015, but were unable to identify an obvious potential source of the disturbance. The potential exists that this impact is simply the result of an initial flush following chemical weathering in the catchment MC-1 is located in. Other samples collected at this site during this time frame indicated similar results, indicating that this concentration was not the result of a contaminated sample. This impact is evident in the concentrations of several parameters, most notably zinc, copper, aluminum and

14

cadmium and shows generally decreasing concentrations from upstream to downstream, suggesting the primary source of elevated concentrations during this time is upstream of mining activities v.

Total Zinc

Monthly / Quarterly Zinc Total zinc concentrations in monthly and quarterly surface grab samples for all sampling sites are summarized in Table 4. Water quality guidelines for zinc are hardness based, and are determined by calculation using the upstream hardness for Myra Creek, and the in situ hardness for the Gold River Bridge sampling location. Cells highlighted in purple indicate an exceeded 30-day mean water quality guideline; orange indicates an exceeded maximum total zinc water quality guideline or effluent concentrations exceeding permit limits. Table 4: Total Zinc Concentrations All Monitoring Locations

MC M-1 0124784

Myra Ponds

E100666

Tailings Supernat E207740

MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00069 0.26100 0.06740 0.06690 0.05360 0.00437

February 0.00174 0.34900 24.70 0.10700 0.10200 0.06830 0.00533

March 0.00095 0.09470 0.07480 0.07330 0.04730 0.00545

April 0.00230 0.15300 0.08360 0.10800 0.03920 0.00458

May 0.03350 0.08630 0.05650 0.05750 0.05850 0.00502

June 0.00362 0.02880 0.09370 0.08470 0.07430 0.00492

July 0.02190 0.04100 0.16100 0.15700 0.05900 0.00395

August 0.96400 0.24000 0.17700 0.32400 0.06250 0.00431

September 0.00758 0.23400 0.09250 0.06810 0.17000 0.00530

October 0.01280 0.10400 0.08750 0.08750 0.11800 0.00381

November 0.03470 0.27100 19.00 0.02270 0.10700 0.09820 0.00430

December 0.01160 0.33300 0.11200 0.10400 0.18300 0.00593

Mean 0.0913 0.1830 21.85 0.0946 0.1117 0.0860 0.0048

Minimum 0.0007 0.0288 19.00 0.0227 0.0575 0.0392 0.0038

Maximum 0.9640 0.3490 24.70 0.1770 0.3240 0.1830 0.0059

Median 0.0096 0.1935 21.85 0.0900 0.0948 0.0654 0.0048

Stdev 0.2751 0.1120 4.03 0.0422 0.0720 0.0475 0.0007

n 12 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

BC WQG max See tables. 1 0.5 See

tables. See tables. 1 See

tables.

BC WQG 30 day See tables. See

tables. See tables. See

tables.

15

As indicated by Table 4, no monthly grab samples collected from the Myra Pond Effluent or Price Ponds exceeded the permit limits. The Tailings Supernatant exceeds permit limits for direct decant to Myra Creek and is sent to treatment as described above. Water quality upstream of the mine at Myra Creek 1 (MC-1) monitoring location indicates significant variability in zinc concentrations, with fluctuations orders of magnitude from one month to the next. MC-1 during August has concentrations of zinc at a higher concentration than all other sites monitored that day (August 11, 2015), as described above. The zinc concentrations in the downstream receiving environment indicate impacts in the downstream monitoring locations that can be attributed to zinc loading from the Myra Pond Effluent. This impact is evident January through May and October through December, when the concentrations in the effluent were higher than typical, and the flow volumes were high. Concentrations are generally highest in Myra Creek at TP4 (TP4), and decrease with dilution as measured at Myra Creek 2 (MC-2) monitoring location. The concentrations as measured at MC-2 in August and November indicate an increase from TP4 to MC-2, indicating there is a source of zinc loading downstream of the mine. The proportion of zinc measured at MC-2 on these dates is predominantly dissolved zinc; both the August and November samples were collected immediately following or during high precipitation events. At this time the downstream loading source is not understood, Myra Falls will monitor for previously unidentified mine-related impacts that may be contributing to this additional loading, however it is possible that this is of a similar nature to the impacts seen at MC-1 where a naturally occurring mineralization is contributing to the zinc loading during high–flow flush events.

Daily Zinc Figure 6 depicts the zinc concentrations as measured in the daily composite samples collected at the effluent site and in Myra Creek at TP4. The treated effluent is indicated by the purple line, while the receiving environment is depicted in green. All effluent results were below the permitted discharge limit of 1.0mg/l, indicated by the dashed red line with the exception of two separate events, one in November and one in December. The permit limit was exceeded on November 26th and 27th, 2015 when a sump pump failed and zinc enriched water was directed into Myra 1 Pond instead of to Superpond. This event occurred when the conditions were very dry, and is not associated with a high flow volume from the effluent. The permit limit was exceeded from December 1st through 3rd during a high flow event that resulted from heavy rains coupled with frozen ground and rapid snow melt.

16

Figure 6: Daily Zinc Results

Figure 7 depicts the same data as Figure 6, above, with a change of scale that allows for a more detailed view of the variability in concentrations in the lower range of numbers to facilitate the following discussion. Daily composite concentrations in Myra Creek as measured at TP4 were above the Maximum Water Quality Guideline (WQG) for zinc every day in 2015 except November 16, 2015. This is consistent with the grab samples collected for monthly monitoring in this location. Concentrations in Myra Creek at TP4 exceeded measured concentrations in the effluent regularly between mid-May and October, indicating that there are other influences impacting the water quality during this time frame. This is consistent with the grab samples from various locations in Myra Creek. Myra Falls environmental staff are not able to explain this phenomenon at this time. Concentrations of zinc were relatively high in the effluent between January and May of 2015. There is a strong correlation between the peaks of effluent zinc concentrations, and peak zinc concentrations in Myra Creek at TP4 during these time periods. This indicates that the zinc loading measured in Myra Creek at TP4 was related to the higher than normal loading through the effluent in the months of January through April.

1.871

1.117

0.000

0.200

0.400

0.600

0.800

1.000

1.200

1.400

1.600

1.800

2.000

mg/

L

Date

Daily Autosampler Composite - 2015 Zinc Concentration

Effluent

MyraCreek@ TP4PE-06858ZnZincLimitMMERWQG -Ave

17

Figure 7: Daily Zinc Concentrations - Scale Changed for Detailed View

This increase in zinc concentrations is result of issues with the internal dredge system that started in 2014 and continued throughout the year. This issue is further discussed in the Conclusion section of this report. Zinc concentrations in the daily effluent are generally higher in November and December of 2015 than the Myra Creek monitoring locations, however they are within the normal operating range for the Superpond treatment system (except during the two water quality events previously discussed).

0.521

0.000

0.100

0.200

0.300

0.400

0.500

0.600

0.700

0.800

0.900

1.000

mg/

L

Date

Daily Autosampler Composite - 2015 Zinc Concentration

Effluent

MyraCreek@ TP4PE-06858ZnZincLimitMMERWQG -Ave

18

Figure 8: 10-year Zinc Concentrations in Receiving Environment

Because the water quality exceeds the guideline for zinc, a 10-year graph depicting the water quality trend over time has been produced and is included as Figure 8 above. The concentrations over time in Myra Creek at TP4 and MC-2 show similar concentrations over time; there is a marked decrease in both the peaks and the average concentrations in Myra Creek after the Tailings Seepage system was improved in 2008. In 2014 and 2015 there is a visible increase in the peak concentrations. As discussed above, these increases can be attributed to the combined impacts of the sludge build-up in the Superpond Lime Treatment System and the upstream flushing impacts noted at monitoring location MC-1. The concentrations at the Gold River Bridge monitoring location have decreased over time, and continue to remain below the water quality guidelines. Though not visible when plotted on the same scale, the concentration of zinc at the Gold River Bridge exhibits a similar pattern to those in Myra Creek.

Total Copper

Monthly / Quarterly Copper Total copper concentrations in monthly and quarterly surface grab samples for all sampling sites are summarized in Table 5. Water quality guidelines for copper are hardness based, and are determined by calculation using the upstream hardness for Myra Creek (MC-1), and the in situ hardness for the Gold River Bridge sampling location. Cells highlighted in purple indicate an exceeded 30-day mean

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Tota

l Zin

c (m

g/L)

10-year Zinc Concentrations Recieving Environment Myra Creek at TP4

Myra Creek at MC-2

Gold River Bridge

AcuteWQG=0.033mg/L

19

water quality guideline; orange indicates an exceeded maximum total zinc water quality guideline or effluent concentrations exceeding permit limits. Table 5: Monthly / Quarterly Grab Sample Copper Concentrations

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge 0130080

January 0.00026 0.01810 0.00313 0.00314 0.00294 0.00065

February 0.00110 0.02770 3.53 0.00500 0.00478 0.00305 0.00066

March 0.00026 0.00794 0.00365 0.00377 0.00266 0.00083

April 0.00088 0.01320 0.00366 0.00685 0.00411 0.00059

May 0.00413 0.00517 0.00197 0.00286 0.00315 0.00064

June 0.000437 0.00328 0.00373 0.00290 0.00574 0.000593

July 0.00203 0.00379 0.00603 0.00646 0.00543 0.00042

August 0.09500 0.01130 0.01090 0.02580 0.00437 0.00074

September 0.00081 0.02090 0.00545 0.00321 0.00293 0.0011

October 0.00129 0.00952 0.00515 0.00512 0.00271 0.00047

November 0.00440 0.03510 3.54 0.00258 0.01350 0.00309 0.00073

December 0.00133 0.02310 0.00649 0.00545 0.00351 0.00356

Mean 0.00933 0.01493 3.54 0.00481 0.00699 0.00364 0.00092

Minimum 0.00026 0.00328 3.53 0.00197 0.00286 0.00266 0.00042

Maximum 0.09500 0.03510 3.54 0.01090 0.02580 0.00574 0.00356

Median 0.00120 0.01225 3.54 0.00437 0.00495 0.00312 0.00066

Stdev 0.02701 0.01014 0.01 0.00237 0.00661 0.00105 0.00085

n 12 12 2 12 12 12 12

DL Range 0.00050 0.00050 0.00050 0.00050 0.00050 0.00050 0.00050

BC WQG max Calculated 0.6 0.3 Calculated Calculated 0.6 Calculated BC WQG 30 day Calculated

Calculated Calculated

Calculated No monthly grab samples collected from the Myra Pond Effluent or Price Ponds exceeded the permit limits; Tailings Supernatant exceeds permit limits and is sent to treatment as a result. There is similar variability in the water quality upstream of the mine at Myra Creek 1 (MC-1) monitoring location exhibited in the copper concentrations as were discussed previously. The concentrations in Myra Creek during this sampling event were higher than those observed in the effluent at this time, adding to the argument that there has been an alteration in the upstream conditions during this time that has impacted the concentrations throughout Myra Creek. Following the same patterns as zinc, copper concentrations in the downstream receiving environment indicate impacts in the downstream monitoring locations that can be attributed to

20

loading from the Myra Pond Effluent when the concentrations in the effluent were higher than typical, and the flow volumes were high.

Daily Copper Figure 9 depicts the copper concentrations as measured in the daily composite samples collected at the effluent site and the weekly composite sample results as measure in Myra Creek at TP4. Due to the AA’s relatively high method detection limit for copper (MDL = 0.020 mg/L), and the relatively low concentration of copper in most daily samples, most results were reported as less-than-detect, or <0.020 mg/L. Starting January 2, 2013, at the request of the Ministry of Environment, total and dissolved copper are collected as weekly composites using subsamples from the daily composite samples. The weekly composite samples include daily samples collected Wednesday through the following Tuesday of each week.

Figure 9: Composite Copper Results

There were no measured concentrations of copper above permitted limits for effluent in 2015. Copper concentrations were frequently below detection levels in the effluent. The copper concentrations in the effluent exhibit a similar pattern to the zinc concentrations as described above, with many of the results below detection limits. The concentrations in Myra Creek were above WQG’s for most composites taken between January and April 2015 and in November – December 2015; however there were several weeks in August when the effluent levels were below detection limits and Myra Creek was above WQG. This is consistent with the results of the monthly samples as discussed above.

0.460

0.000

0.100

0.200

0.300

0.400

0.500

0.600

01-Ja

n14

-Jan

27-Ja

n09

-Feb

22-F

eb07

-Mar

20-M

ar02

-Apr

15-A

pr28

-Apr

11-M

ay24

-May

06-Ju

n19

-Jun

02-Ju

l15

-Jul

28-Ju

l10

-Aug

23-A

ug05

-Sep

18-S

ep01

-Oct

14-O

ct27

-Oct

09-N

ov22

-Nov

05-D

ec18

-Dec

31-D

ec

mg/

L

Date

Daily Autosampler Composite - 2015 Copper Concentration

Effluent

MyraCreek @TP4

21

Dissolved Aluminum

Monitoring results for monthly and quarterly grab samples are summarized in Table 6 below. As with the zinc and copper concentrations, dissolved aluminum is elevated above the Chronic WQG at MC-1 Monitoring Location several months in 2015. With the exception of August downstream monitoring locations are within WQG and don not exhibit the same variation seen at MC-1. The dissolved aluminum concentrations are over WQG throughout the Myra Creek System, increasing slightly in the downstream areas however the concentrations are within 10% of the MC-1 levels as measured. As these results are associated with an anomalous event a 10 year time-series has not been provided. There is no permit limits set for Dissolved Aluminium. Table 6: Dissolved Aluminum Concentrations in Monthly Grab Samples

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0566 0.0789 0.0496 0.0451 0.0100 0.0107

February 0.0429 0.1030 5.83 0.0400 0.0380 0.0098 0.0114

March 0.0398 0.1090 0.0399 0.0349 0.0100 0.0132

April 0.0364 0.1550 0.0413 0.0369 0.0088 0.0124

May 0.0323 0.1260 0.0288 0.0291 0.0125 0.0128

June 0.0232 0.1310 0.0373 0.0311 0.0109 0.0121

July 0.0267 0.0827 0.0383 0.0285 0.0130 0.0120

August 0.0773 0.0741 0.0324 0.0374 0.0118 0.0112

September 0.1570 0.0358 0.0319 0.0040 0.0104

October 0.031 0.1690 0.0404 0.0336 0.0067 0.0115

November 0.0908 0.2120 12.40 0.0964 0.0986 0.0056 0.0153

December 0.0606 0.1010 0.0276 0.0252 0.00658 0.0205

Mean 0.0471 0.1249 9.1150 0.0423 0.0392 0.0091 0.0128

Minimum 0.0232 0.0741 5.8300 0.0276 0.0252 0.0040 0.0104

Maximum 0.0908 0.2120 12.4000 0.0964 0.0986 0.0130 0.0205

Median 0.0398 0.1175 9.1150 0.0391 0.0343 0.0099 0.0121

Stdev 0.0218 0.0419 4.6457 0.0180 0.0194 0.0029 0.0028

n 11 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

BC WQG max 0.10 0.10 0.10 0.10 0.10 0.10 0.10

BC WQG 30 day 0.050 0.050 0.050 0.050 0.050 0.050 0.050

Total and Dissolved Iron

There were no samples taken in 2015 in which the Total or Dissolved Iron were above the water quality guidelines in 2015 as is summarized in Tables 7 and 8 respectively.

22

Table 7: Total Iron Concentrations in Grab Samples 2015

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0082 0.1770 0.0180 0.0180 0.0254 0.0088

February 0.0103 0.3580 52.8 0.0263 0.0259 0.0423 0.0121

March 0.0059 0.0582 0.0152 0.0144 0.0148 0.0051

April 0.0165 0.1170 0.0172 0.0335 0.0702 0.0082

May 0.0044 0.0362 0.0066 0.0067 0.0203 0.0068

June 0.0028 0.0201 0.0108 0.0066 0.0287 0.0091

July 0.0016 0.0202 0.0066 0.0057 0.0386 0.0112

August 0.0061 0.0419 0.0096 0.0071 0.0278 0.0096

September 0.0041 0.0733 0.0248 0.0114 0.0155 0.0080

October 0.0039 0.0453 0.0093 0.0090 0.0103 0.0066

November 0.0383 0.4580 103.0 0.0572 0.0862 0.0075 0.0132

December 0.0138 0.3050 0.0489 0.0256 0.0204 0.0068

Mean 0.010 0.143 77.90 0.021 0.021 0.027 0.009

Minimum 0.002 0.020 52.80 0.007 0.006 0.008 0.005

Maximum 0.038 0.458 103.00 0.057 0.086 0.070 0.013

Median 0.006 0.066 77.90 0.016 0.013 0.023 0.009

Stdev 0.010 0.150 35.50 0.016 0.023 0.017 0.002

n 12 12 2 12 12 12 12

DL Range 0.030 0.030 0.030 0.030 0.030 0.030 0.030

BC WQG max 1.0 1.0 1.0 1.0 1.0 1.0 1.0

23

Table 8: Dissolved Iron in Grab Samples 2015

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0079 0.0018 0.0078 0.0062 0.0046 0.0022

February 0.0056 0.0020 52.1 0.0046 0.0052 0.0055 0.0026

March 0.0077 0.0016 0.0037 0.0041 0.0039 0.0016

April 0.0045 0.0021 0.0040 0.0040 0.0025 0.0020

May 0.0027 0.0018 0.0025 0.0026 0.0029 0.0021

June 0.0030 0.0027 0.0045 0.0074 0.0055 0.0039

July 0.0014 0.0056 0.0026 0.0065 0.0117 0.0027

August 0.0040 0.0024 0.0017 0.0024 0.0177 0.0035

September 0.0011 0.0030 0.0038 0.0075 0.0020

October 0.0037 0.0015 0.0022 0.0024 0.0069 0.0019

November 0.0173 0.0014 69.4 0.0179 0.0201 0.0038 0.0079

December 0.3270 0.0037 0.0035 0.0031 0.0045 0.0033

Mean 0.035 0.002 60.75 0.005 0.006 0.006 0.003

Minimum 0.001 0.001 52.10 0.002 0.002 0.003 0.002

Maximum 0.327 0.006 69.40 0.018 0.020 0.018 0.008

Median 0.005 0.002 60.75 0.004 0.004 0.005 0.002

Stdev 0.097 0.001 12.23 0.004 0.005 0.004 0.002

n 11 12 2 12 12 12 12

DL Range 0.030 0.030 0.030 0.030 0.030 0.030 0.030

BC WQG max 0.35 0.35 0.35 0.35 0.35 0.35 0.35

Dissolved Cadmium

Dissolved Cadmium was above Chronic and Acute water quality guidelines in the downstream water quality monitoring stations in 2015 in all months. Unlike the other metals discussed previously, there is no evidence of an upstream influence on the concentrations of cadmium in the upstream water quality. The water quality in the effluent does not appear to correlate directly with the cadmium concentrations in the downstream areas, indicating that the influence may be groundwater based.

24

Table 9: Summary of Dissolved Cadmium in Grab Samples 2015

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.000175 0.000348 0.000191 0.000269 0.000296 0.000016

February 0.000011 0.000424 0.209 0.000272 0.000269 0.000334 0.000020

March 0.000013 0.000137 0.000190 0.000179 0.000261 0.000017

April 0.000007 0.000355 0.000199 0.000199 0.000183 0.000016

May 0.0000053 0.0002680 0.0001320 0.0001150 0.0002630 0.0000202

June 0.000005 0.0000574 0.0002340 0.0002180 0.000319 0.00002

July 0.000005 0.0000671 0.0003260 0.0003000 0.0001680 0.0000136

August 0.0000380 0.0003510 0.0003010 0.0003030 0.0001910 0.0000134

September 0.0002160 0.0002020 0.000215 0.000586 0.000021

October 0.000013 0.0002330 0.0001990 0.000194 0.000346 0.000014

November 0.0000140 0.0006840 0.092 0.0000490 0.0000780 0.0003630 0.0000150

December 0.000042 0.0002870 0.0002970 0.000291 0.000895 0.00002

Mean 0.000030 0.000286 0.151 0.000216 0.000219 0.000350 0.000017

Minimum 0.000005 0.000057 0.092 0.000049 0.000078 0.000168 0.000013

Maximum 0.000175 0.000684 0.209 0.000326 0.000303 0.000895 0.000021

Median 0.000013 0.000278 0.151 0.000201 0.000217 0.000308 0.000017

Stdev 0.000050 0.000171 0.083 0.000078 0.000072 0.000204 0.000003

n 11 12 2 12 12 12 12

DL Range 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050

BC WQG max Calculated 0.005 0.003 Calculated Calculated 0.005 Calculated

BC WQG 30 day Calculated Calculated Calculated Calculated

As is illustrated in Figure 10 below, a marked decrease in Cadmium concentrations can be seen following improvements to the Seepage Collection System that occurred in 2008. A second chart with the timeline dating from mid-2008 to date has been provided as Figure 11 to illustrate the fluctuation in cadmium concentration in more detail.

25

Figure 10: 10 Year Cadmium Concentrations

Figure 11: 7 Year Cadmium Concentrations

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

0.016

0.018

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

Tota

l Zin

c (m

g/L)

10-year Cadmium Concentrations Recieving Environment Gold River Bridge

Myra Creek at M2

Myra Creek at TP4

0

0.0002

0.0004

0.0006

0.0008

0.001

2008 2009 2010 2011 2012 2013 2014 2015

Tota

l Zin

c (m

g/L)

7-year Cadmium Concentrations Recieving Environment

Gold River Bridge

Myra Creek at M2

Myra Creek at TP4

26

Cadmium concentrations in Myra Creek show seasonal variations within the normal range from 2008 to date for the 2015 concentrations. The largest difference between 2015 concentrations and previous years are the high levels during summer months, in particular in August 2015, thought to be related to the very low flows in Myra Creek increasing the importance of groundwater influence on creek concentrations relative to effluent flows.

Dissolved Sulphate

There were no results that were over water quality guidelines in 2015 for sulphate as summarized in Table 10 below. There is an increase in sulphate concentrations downstream of the mine, however they are all well below the low hardness WQG as calculated using the hardness at MC-1. Table 10: Dissolved Sulphate Concentrations 2015

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.68 340.00 22.40 19.30 - 4.08

February 0.95 375.00 31.00 28.50 -

March 1.30 366.00 36.30 30.60 - 3.54

April 1.42 439.00 45.00 42.10 - 3.68

May 0.94 405.00 32.90 31.40 - 3.99

June 2.24 402.00 75.70 102.00 - 3.87

July 1.68 281.00 114.00 122.00 - 4.14

August 1.61 274.00 71.30 68.70 - 4.99

September 241.00 37.80 37.40 -

October 4.64 261.00 53.40 52.10 - 4.38

November 0.50 290.00 468.00 6.02 6.05 - 5.15

December 1.92 267.00 56.40 51.10 - 4.22

Mean 1.63 328.42 468.00 48.52 49.27 - 4.20

Minimum 0.50 241.00 468.00 6.02 6.05 0.00 3.54

Maximum 4.64 439.00 468.00 114.00 122.00 0.00 5.15

Median 1.42 315.00 468.00 41.40 39.75 - 4.11

Stdev 1.13 67.33 - 28.52 33.73 - 0.52

n 11.00 12.00 1.00 12.00 12.00 0.00 10.00

DL Range 0.00 0.00 0.00 0.00 0.00 0.00 0.00

BC WQG max Calculated n/a n/a Calculated Calculated n/a Calculated

BC WQG 30 day Calculated n/a n/a Calculated Calculated n/a Calculated

Nutrients

The effluent is sampled on a quarterly basis for dissolved sulfate, total nitrogen and total phosphorus. Toxicity is subject to limits under PE-06858, however no samples exceeded these

27

limits in 2015 (Table 11). All rainbow trout 96-hour LC50 test results were >100% vol/vol. Nitrogen and phosphates are within the normal range for these parameters in 2015. Table 11: Quarterly Effluent Grab Sample Results

T-Cd D-Cd Toxicity (96-

hr RBT LC50) D-SO4 T-N T-Phos

mg/L mg/L % vol/vol mg/L mg/L mg/L Permit Limit n/a 0.005 100% n/a n/a n/a

11/02/2015 0.001440 0.00101 >100 373 1.4 0.003 13/05/2015 0.000488 0.000325 >100 393 0.5 <0.0020 13/08/2015 0.000408 0.000117 >100 278 0.5 0.006 18/11/2015 0.001850 0.001190 >100 296 0.3 0.004

Effluent Flow Monitoring

Effluent flow is monitored continuously by a 30” Parshall flume with an ultrasonic flow measuring device. The total volume discharged is recorded every 24 hours from a flow totalizer (from 6:30 am to 6:30 am). The authorized rate of discharge is an annual average of 48,000 m3/day. In 2015 the average flow rate as measured was 31,480 m3/day, and exceeded this average value 36 days in 2015 as can be seen in Figure 12 below. There was one day where the measured flow totalled more than 110,000 m3/day, triggering a higher Total Suspended Solids (TSS) effluent limit. This occurred on February 6, 2015 during the highest rainfall event of the year.

28

Figure 12: Flow in Myra Creek and Effluent in 2015

Flow through the water treatment system is generally associated with precipitation and therefore shows seasonal variability. In 2015, effluent volumetrically ranges between 2.3% and 17.4% of the total flow in Myra Creek, as measured at the Car Bridge Flow Monitoring Station, and average of 5.7%. Figure 13 depicts the percent volume of Myra Creek Flow associated with the effluent from the Superpond Lime Treatment System. The red line depicts the percent of total Myra Creek flow that steams from the water treatment system. This chart clearly indicates the seasonal trending toward lower inputs from site during high flow events, and the increasing relative importance of the effluent as a water source and consequent loading source during the drier season.

114396

2830637

0

500000

1000000

1500000

2000000

2500000

3000000

01-Jan 01-Feb 01-Mar 01-Apr 01-May 01-Jun 01-Jul 01-Aug 01-Sep 01-Oct 01-Nov 01-Dec

Effluent (m3/day)

Myra Creek (m3/day)

29

Figure 13: Percentage of Myra Creek Flow Directly Associated with Effluent

Sewage Treatment Plants

Myra Falls operates two sewage treatment plants (STP) to treat sewage and grey water. The HW STP is located adjacent to the warehouse and operates using a Klargester Roto Pack system. The Myra STP is located near the cookhouse and was replaced with a new dual-tank Segflow biological treatment system in July 2013. Effluent from the sewage treatment plants is pumped to the water treatment system for further treatment before discharge to the receiving environment. The plants are sampled quarterly for total suspended solids (TSS) and biological oxygen demand (BOD). Myra Ponds effluent is concurrently sampled to determine TSS and BOD levels before final discharge to Myra Creek. Results for all three locations are included in Table 12 below. There were no parameters over permit limits in 2015. Table 12: Quarterly Grab Sample Results for Sewage Treatment Plants

HW STP Myra STP Myra Ponds

BOD TSS BOD TSS BOD TSS Permit Limit 45 60 45 60 45 60

18/03/2015 <6.0 12 16.8 8.8 6.9 4.5 30/06/2015 <6.0 <4.0 <6.0 <4.0 <6.0 11.3 30/09/2015 <6.0 <4.0 <6.0 5.8 <6.0 4.0 21/12/2015 <6.0 <4.0 <6.0 5.3 <6.0 4.3

17.35%

0.00%

2.00%

4.00%

6.00%

8.00%

10.00%

12.00%

14.00%

16.00%

18.00%

20.00%

0

500000

1000000

1500000

2000000

2500000

3000000

01-Ja

n

01-F

eb

01-M

ar

01-A

pr

01-M

ay

01-Ju

n

01-Ju

l

01-A

ug

01-S

ep

01-O

ct

01-N

ov

01-D

ec

Myra Creek (m3/day)

Effluent (m3/day)

"Percent Flow"

30

Buttle Lake

Two locations in Buttle Lake are sampled six times per year in February, April, June, August, October and December. The two stations are located off of the Karst Creek and Henshaw Creek deltas, and are sampled for a variety of chemical, physical and biological parameters at various depths throughout the water column (0-100 m). A station map of the Buttle Lake and Gold River stations can be found in Figure 5-5 in Appendix E. Hardness based water quality guidelines were calculated using the hardness values for Buttle Lake, as measured at the Buttle Narrows (Gold River Bridge). Comprehensive results for Buttle Lake are presented in Appendix E. The EMS-ID for the Henshaw sampling station, located mid-lake off Henshaw Creek is 0130082. This station is closest to the historic sub-aqueous tailings disposal area in Buttle Lake, in use from 1967-1984. The EMS-ID for the Karst sampling station, located mid-lake off Karst Creek boat ramp, is 0130090. The results of the 2015 monitoring indicate that water quality in Buttle Lake was also impacted by the extreme weather events that occurred in 2015. Notes taken during the February sampling event indicate that the water was very turbid, with large volumes of floating woody debris in the lake. Samples collected at both locations at all depths indicated greater than average concentrations of all metals, and exceeded water quality guidelines at all depths measured for total copper and zinc. Cadmium was higher than average at most locations and depths during this event, and exceeded WQG at depth (40 m and 60 m) in the Henshaw locations, and at surface in the Karst location. This can be attributed to the February 5-6 rain event during which 186.3 mm of rain fell in a 48 hour time frame in the area, adding significant erosional debris to the lake system from the surrounding rivers and streams. The deep water samples at the Henshaw Creek sampling site (Hen-60) continue to show the highest metal concentrations. This could be related to the close proximity of this sampling location to the historic tailings deposition area in Buttle Lake, the nearby influence of Myra Creek, natural lake processes, lake water levels, or a combination of factors. Due to upstream (Myra Creek) exceedances of zinc, copper and cadmium, charts have been prepared for these metals for the downstream portions of the watershed. The time-charts for each site clearly indicate a disturbance at the Karst Creek site that is more impactful at depth. This same extreme peak in concentrations is not observed at the Henshaw location; however concentrations are elevated at both locations. This appears to indicate a source outside the Myra Creek Watershed for the measured impacts at the Karst Creek monitoring location during this time.

31

Total Zinc

Figure 14: Henshaw Location - Buttle Lake 2006 – 2015

Figure 15: Total Zinc at Karst Creek Buttle Lake - 2006-2015

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

mg/

L

Total Zinc - Henshaw Location

Henshaw-0m

Henshaw-20m

Henshaw-40m

Henshaw-60m

0

0.02

0.04

0.06

0.08

0.1

0.12

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

mg/

L

Total Zinc - Karst Location

Karst-0m

Karst-20m

Karst-40m

Karst-60m

Karst-80m

Karst-100m

32

Four zinc samples from Karst exceeded the maximum WQG in 2015, 85% of samples collected from both locations exceeded chronic guideline. The metal concentrations at Karst are less than the concentrations at Henshaw, decreasing with distance from Myra Creek and the mine site. The improved seepage capture from the new outer drains installed under the TDF in 2008 has shown overall improved water quality in Buttle Lake since 2008. Extreme events in December 2014 and February 2015 have resulted in peak concentration at the later part of the time series at both locations.

Total Copper All monitoring locations and depths exceeded water quality guidelines in February 2015; four of the five monitoring depths at Karst Creek exceeded the maximum water quality guideline for copper during this time. 38% of the samples collected in 2015 exceeded the chronic water quality guideline for copper.

Figure 16: Total Copper Concentrations at Henshaw Creek in Buttle Lake 2006-2015

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

mg/

L

Total Copper - Henshaw Location

Henshaw-0m

Henshaw-20m

Henshaw-40m

Henshaw-60m

33

Figure 17: Total Copper Concentrations at Karst Creek in Buttle Lake 2006-2015

Total Cadmium Cadmium concentrations exceeded maximum water quality guidelines at depth at Henshaw Creek during the February, April and June sampling sets, and at Karst Creek at surface for those sampling sets as well. 48% of the samples collected at both locations were higher than the average of the last 5 years (post upgrades to the Tailings Seepage Collection System). The peak noted in February for zinc and copper is less pronounced in the cadmium data, indicating that the Myra Creek system is the more important factor in cadmium loading to the Buttle Lake system.

0

0.002

0.004

0.006

0.008

0.01

0.012

0.014

0.016

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

mg/

L

Total Copper - Karst Location

Karst-0m

Karst-20m

Karst-40m

Karst-60m

Karst-80m

Karst-100m

34

Figure 18: Total Cadmium Concentrations in Buttle Lake at Henshaw 2006-2015

0

0.00005

0.0001

0.00015

0.0002

0.00025

0.0003

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

mg/

L

Total Cadmium - Henshaw Location

Henshaw-0m

Henshaw-20m

Henshaw-40m

Henshaw-60m

0

0.00005

0.0001

0.00015

0.0002

0.00025

2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

mg/

L

Total Cadmium - Karst Location

Karst-0m

Karst-20m

Karst-40m

Karst-60m

Karst-80m

Karst-100m

35

Event Outside of Normal Operational Parameters There were seven environmental events communicated to regulatory authorities in 2015. Table 2-18 provides a summary of events. Follow-up reports detailing the root cause and mitigation efforts were submitted to the Ministry of Environment and Environment Canada. Other agencies such as the Ministry of Energy and Mines, the Vancouver Island Health Authority and the city of Campbell River are also notified of these events. Table 13: Summary of Reportable Spills, Excursions and Other Unusual Events

Incident Date

Incident Description

Permit or Regulation Limit Exceeded

Cause of Incident

January 18-19, 2015

Effluent composite samples were above MMER guidelines for Zinc

MMER – Total Zinc Composite January 18: T-Zn 0.989 mg/L January 19: T-Zn 0.807 mg/L

Maintenance of Superpond Lime Additional Water Treatment System required, significant Sludge build-up and malfunctioning equipment prevent settling of solids, inadequate lime mixing

February 5-7, 2015

High flows during rain event lead to TSS over limits, flow rate measured at ~100,640 cubic meters, cut-off is 110,00 cubic meters

Permit Limit Breach: TSS was 28.8 mg /L, above the low flow limit of 25 mg /L.

High flows and maintenance of Superpond Lime Additional Water Treatment System required, significant Sludge build-up and malfunctioning equipment prevent settling of solids

March 20, 2015

High flows during rain event lead to TSS and Total Zinc over limits

Permit Limit Breach: Effluent was over permit limits for TSS (34.3 mg/L) and MMER limits for Zinc (0.77 mg/L)


November 26 – 27, 2015

Sump pump failed, allowing untreated water to enter Myra Polishing Ponds increasing the zinc and sediment loading.

Effluent quality November 26, 2015 - total zinc of 1.11mg/L, November 27, 2015 - total zinc of 1.80mg/L. Limit for MMER is 0.75mg/L and BCMoE permit is 1.00mg/L.

Result of pump failure that went unnoticed during routine inspection.

December 2 – 3, 2015

High flows resulted in flushing of zinc solids into water column and exceeding permit and MMER limits.

Total Zinc over MMER and Permit Limits December 1: 0.908 mg/L December 2: 1.12mg/L December 3: 1.03 mg/L


36

Conclusions

The monitoring program at Myra Falls was conducted within the requirements of the Effluent Permit PE-06858 in 2015. Sampling results indicated 3 incidents where permit limits were exceeded in the Effluent (reported via PEP line upon discovery of the occurrence). Water that does not meet Permitted limits from the tailings supernatant are sent for treatment, rather than released to Myra Creek, as required by the permit. Concentrations of several parameters were elevated at the Myra Upstream Monitoring location that may result from an upstream flushing of exposed mineralized rock. Myra Falls’ employees did a helicopter survey of the upper Myra Creek Reach in the fall of 2015, but were unable to identify an obvious potential source of the disturbance. Due to the steep terrain and rugged stream bed structure, it will be difficult for additional survey of the upstream areas to positively identify any natural disturbance that may have triggered these responses at MC-1. There is also evidence of additional loading downstream of the mine as measured in Myra Creek at TP4 Monitoring Location. To date, there is no definitive explanation of the source of this loading; Myra Falls Environmental Staff will make every reasonable effort to ensure all mine-related impacts are accounted for and mapped, and any major non-mine related impacts have been identified in the vicinity of the sampling locations. Increased concentrations of suspended solids, as well as zinc, copper and other related metals is the result of higher than normal sludge volumes in the Superpond and Myra Polishing Ponds. This sludge build-up has been determined to be related to the ineffective dredging of the pond using the “Flump-Pump” dredge that had been installed in the past to maintain these levels at an appropriate operational depth. To resolve this issue Nyrstar will replace the aging internal dredge system currently installed in Superpond in the summer of 2016. As an interim solution, a dredging company was contracted to remove these solids in March of 2015, and returned in February of 2016. The concentrations measured in the effluent notably decreased as a result of this work. Myra Falls Management Team has struck a Water Management Task Force, headed by a Water Management Coordinator, responsible for the Operation, Maintenance and Surveillance (OMS) of the water management systems, including the Superpond Lime Addition Water Treatment System. Since this group was created, several improvement projects have been completed, with several more planned for the upcoming construction season. These projects include but are not limited to:

o Repairs to the lime addition and mixing systems o Development of a Preventative Maintenance (PM) Program for the water

management systems

37

o The addition of a surge pond to allow for primary settling of solids and controlled flows to Superpond

o Replacement of the aging in-house maintenance dredge system o Review of the CO2 delivery system, and update of OMS manual and PM schedule

for the system o Removal of sediment / sludge build-up from all polishing ponds and the Superpond o Review of lime slaking and mixing efficiency with recommendations for

improvements o Reprograming of pumping systems to decrease the fluctuations in the system and

improve performance o Improved ditching and piping of contact water to treatment, with additional water

streams earmarked for future works in 2016 – 2018 construction seasons The Myra Falls team is confident that the planned works in the upcoming years will further reduce the water quality impacts associated with the mine on the Myra Creek Watershed, and in the downstream receiving environment, Buttle Lake.

Appendix A

Daily Monitoring Data

DAILY WATER QUALITY MONITORINGPE-06858

JANUARY 2015

Nyrstar Myra FallsAppendix A - Daily Data

Myra Ponds (EMS-ID: E100666)

Treated Effluent Daily Composite Sampling

FLOW LAB TOTAL TOTAL MYRA CREEK LAB TOTALRATE pH ZINC COPPER FLOW RATE pH ZINC

DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/1/2015 27,980 9.1 0.233 <0.020 437,745 7.6 0.0812/1/2015 32,920 9.2 0.342 <0.020 443,984 7.6 0.0823/1/2015 30,630 9.1 0.270 <0.020 429,502 7.5 0.0834/1/2015 35,115 9.2 0.323 <0.020 457,319 7.5 0.0835/1/2015 36,675 8.9 0.387 <0.020 922,912 7.3 0.0746/1/2015 39,182 8.9 0.281 <0.020 1,020,331 7.4 0.0597/1/2015 34,852 8.9 0.357 <0.020 758,970 7.5 0.0658/1/2015 35,852 9.0 0.399 <0.020 705,227 7.5 0.0679/1/2015 34,655 9.2 0.383 <0.020 669,697 7.5 0.069

10/1/2015 31,995 9.1 0.373 <0.020 641,819 7.5 0.06811/1/2015 31,608 9.1 0.491 <0.020 594,645 7.5 0.07212/1/2015 32,744 9.1 0.452 <0.020 554,930 7.4 0.0681/13/2015 29,566 9.1 0.293 <0.020 517,098 7.5 0.1761/14/2015 27,611 8.9 0.232 <0.020 494,509 7.5 0.1181/15/2015 53,616 8.9 0.629 0.048 686,280 7.5 0.0951/16/2015 59,666 9.1 0.593 0.053 792,483 7.5 0.0761/17/2015 61,280 8.9 0.759 0.069 680,697 7.5 0.0671/18/2015 87,340 8.9 0.935 0.082 1,107,410 7.4 0.0661/19/2015 59,980 8.8 0.807 0.062 874,516 7.4 0.0791/20/2015 45,850 8.9 0.503 0.036 704,398 7.6 0.0561/21/2015 38,205 8.8 0.306 0.033 627,794 7.6 0.0481/22/2015 38,502 9.0 0.263 0.032 778,041 7.6 0.0481/23/2015 55,218 9.1 0.323 0.048 1,375,674 7.6 0.0581/24/2015 51,340 9.0 0.335 0.036 1,277,923 7.6 0.0581/25/2015 44,126 8.8 0.392 0.042 1,113,203 7.5 0.0601/26/2015 41,841 8.9 0.280 0.037 844,103 7.6 0.0611/27/2015 40,642 9.0 0.381 0.038 777,881 7.5 0.0681/28/2015 37,985 8.9 0.267 0.020 685,324 7.6 0.0691/29/2015 34,861 9.0 0.199 <0.020 618,447 7.6 0.0761/30/2015 33,145 9.1 0.168 <0.020 577,107 7.5 0.0861/31/2015 34,829 8.9 0.247 0.026 562,157 7.5 0.084

Averages:January 2015 53,335 9.0 0.460 0.037 733,294 7.5 0.075December 2014 41,284 9.0 0.387 0.024 304,247 7.5 0.095January 2014 30,633 9.0 0.152 0.017 311,534 7.2 0.045Total flows:January 2015 1,279,811 December 2014 1,653,399 January 2014 949,610

Myra Creek (EMS-ID: E206805)

TP4 Daily Composite Sampling


FEBRUARY 2015


FLOW TOTAL TOTAL MYRA CREEK LAB TOTALRATE pH ZINC COPPER FLOW RATE pH ZINC

DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/2/2015 40,166 9.0 0.231 0.026 616,258 7.3 0.1242/2/2015 32,850 9.0 0.158 0.020 590,613 7.3 0.0973/2/2015 32,920 9.0 0.118 0.014 623,807 7.3 0.1194/2/2015 32,620 9.0 0.220 0.032 673,658 6.8 0.0795/2/2015 93,201 8.9 0.583 0.078 1,925,402 6.8 0.0416/2/2015 114,396 9.1 0.929 0.113 2,945,033 6.7 0.0407/2/2015 92,268 9.2 0.555 0.095 2,257,815 6.7 0.0398/2/2015 73,357 9.3 0.496 0.078 1,886,918 6.7 0.0519/2/2015 67,107 9.4 0.438 0.056 1,484,001 6.8 0.064

10/2/2015 47,865 8.9 0.311 0.035 1,181,841 6.8 0.07011/2/2015 46,132 9.0 0.255 0.007 1,017,048 7.8 0.08912/2/2015 46,186 8.9 0.265 0.008 1,168,332 7.6 0.0672/13/2015 59,996 8.9 0.216 0.007 1,778,315 7.5 0.0552/14/2015 42,561 9.0 0.242 0.007 1,232,802 7.5 0.0722/15/2015 38,624 9.0 0.257 0.016 979,173 7.6 0.0822/16/2015 37,611 8.9 0.262 0.023 868,813 7.5 0.0902/17/2015 33,257 8.9 0.287 0.030 789,875 7.6 0.0972/18/2015 33,250 8.8 0.214 0.009 736,530 7.6 0.1172/19/2015 39,420 8.9 0.293 0.009 732,100 7.6 0.1322/20/2015 34,200 8.9 0.210 0.009 715,173 7.6 0.1382/21/2015 28,980 9.1 0.251 0.013 661,882 7.6 0.1352/22/2015 28,887 9.0 0.228 0.013 614,628 7.6 0.1432/23/2015 24,292 9.0 0.156 0.014 611,016 7.5 0.1242/24/2015 21,208 9.1 0.132 0.016 629,586 7.5 0.1242/25/2015 25,020 9.0 0.117 0.010 618,899 7.7 0.1212/26/2015 27,715 8.8 0.166 0.011 621,942 7.7 0.1112/27/2015 26,267 8.8 0.317 0.018 620,986 7.6 0.1162/28/2015 20,635 8.8 0.314 0.016 594,416 7.6 0.133

Averages:42036 44,321 9.0 0.294 0.028 1,042,031 7.4 0.095January 2015 53,335 9.0 0.460 0.037 1,493,380 7.3 0.194February 2014 27,691 9.0 0.129 0.020 775,348 7.1 0.075Total flows:February 2015 1,240,991 January 2015 1,279,811 February 2014 775,338

Myra Ponds (EMS-ID: E100666) Myra Creek (EMS-ID: E206805)

Treated Effluent Daily Composite Sampling TP4 Daily Composite Sampling


MARCH 2015



DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 3/1/2015 24,635 8.9 0.323 0.026 589,683 7.5 0.1373/2/2015 26,368 8.8 0.265 0.024 580,728 7.5 0.1283/3/2015 26,656 8.9 0.254 0.024 569,048 7.5 0.1203/4/2015 21,215 9.0 0.338 0.034 554,147 7.6 0.1243/5/2015 24,955 8.9 0.304 0.034 556,395 7.7 0.1133/6/2015 24,590 9.2 0.261 0.042 551,888 7.6 0.1063/7/2015 22,980 9.1 0.326 0.058 542,380 7.6 0.1003/8/2015 23,580 9.1 0.367 0.064 543,441 7.6 0.1033/9/2015 24,980 9.0 0.211 0.032 550,122 7.5 0.107

3/10/2015 23,553 9.0 0.213 0.032 553,288 7.5 0.1033/11/2015 29,212 9.1 0.349 0.037 927,408 7.6 0.0503/12/2015 36,912 9.0 0.389 0.045 1,424,841 7.6 0.0363/13/2015 32,001 9.0 0.223 0.023 1,031,662 7.5 0.0383/14/2015 39,184 9.0 0.245 0.028 1,320,705 7.4 0.0343/15/2015 26,678 9.0 0.221 0.026 960,201 7.3 0.0493/16/2015 25,315 9.0 0.142 0.024 808,907 7.4 0.0583/17/2015 25,631 9.0 0.194 0.028 736,571 7.4 0.0653/18/2015 27,816 9.0 0.322 0.034 700,369 7.7 0.1233/19/2015 40,981 9.0 0.461 0.052 984,277 7.6 0.0903/20/2015 88,341 9.0 0.821 0.117 2,068,754 7.6 0.0743/21/2015 42,673 9.0 0.409 0.065 1,275,123 7.5 0.0773/22/2015 33,850 9.0 0.256 0.037 996,399 7.5 0.0763/23/2015 32,920 9.0 0.250 0.036 910,519 7.5 0.0713/24/2015 31,850 8.7 0.240 0.021 842,939 7.5 0.0693/25/2015 43,750 8.5 0.278 0.031 1,113,992 7.7 0.1383/26/2015 41,433 8.5 0.317 0.037 1,548,549 7.6 0.1003/27/2015 46,654 8.9 0.307 0.042 1,401,371 7.5 0.0753/28/2015 59,732 8.9 0.357 0.059 1,429,121 7.5 0.0693/29/2015 85,582 8.9 0.482 0.085 2,235,400 7.4 0.0723/30/2015 88,065 8.5 0.311 0.053 2,019,800 7.4 0.0753/31/2015 54,475 8.5 0.305 0.049 1,417,325 7.4 0.090

Averages:March 2015 37,954 8.9 0.314 0.042 1,024,044 7.5 0.086February 2015 44,321 9.0 0.294 0.028 1,373,951 7.4 0.095March 2014 35,607 9.0 0.116 <0.020 1,103,817 7.1 0.077Total flows:March 2015 1,176,567 February 2015 1,240,991 March 2014 1,103,821




APRIL 2015



DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/4/2015 42,930 8.7 0.273 0.029 1,091,676 7.5 0.1032/4/2015 41,979 8.6 0.596 0.066 975,801 7.4 0.0993/4/2015 42,600 8.6 0.603 0.100 928,337 7.4 0.0994/4/2015 34,272 8.5 0.360 0.094 864,907 7.4 0.0965/4/2015 31,551 8.9 0.197 0.043 821,344 7.4 0.0986/4/2015 30,088 8.9 0.192 0.027 784,169 7.4 0.0947/4/2015 28,620 8.7 0.207 0.028 750,206 7.4 0.0978/4/2015 28,680 8.7 0.222 0.027 730,361 7.4 0.1059/4/2015 29,850 8.6 0.247 <0.020 719,682 7.7 0.104

10/4/2015 27,650 8.7 0.347 0.035 721,683 7.7 0.08911/4/2015 21,157 8.4 0.408 0.037 721,854 7.7 0.09412/4/2015 31,232 8.5 0.358 0.044 713,784 7.6 0.0954/13/2015 33,235 8.5 0.354 0.050 738,631 7.6 0.0924/14/2015 22,413 8.6 0.192 0.030 708,125 7.6 0.0844/15/2015 24,026 8.6 0.119 <0.020 677,484 7.5 0.1024/16/2015 23,818 8.6 0.137 <0.020 684,889 7.6 0.1004/17/2015 23,624 8.6 0.176 <0.020 794,853 7.6 0.0874/18/2015 27,905 8.6 0.178 <0.020 827,019 7.5 0.0904/19/2015 22,116 8.8 0.210 <0.020 817,165 7.4 0.0884/20/2015 29,782 8.6 0.293 <0.020 890,341 7.4 0.0734/21/2015 31,050 8.4 0.303 0.024 937,122 7.3 0.0924/22/2015 18,829 8.4 0.297 0.027 803,315 7.5 0.1204/23/2015 17,950 8.6 0.235 0.034 735,727 7.4 0.1184/24/2015 18,950 8.5 0.175 0.034 709,688 7.4 0.1004/25/2015 22,890 8.6 0.195 0.045 698,573 7.3 0.1124/26/2015 29,730 8.6 0.222 0.033 707,567 7.2 0.0944/27/2015 29,305 8.5 0.251 0.032 851,205 7.2 0.0524/28/2015 32,413 8.7 0.170 0.023 1,114,428 7.3 0.0564/29/2015 29,694 8.6 0.123 <0.020 911,404 7.5 0.1184/30/2015 28,780 8.6 0.130 0.022 888,874 7.6 0.088

Averages:April 2015 28,571 8.6 0.259 0.032 810,674 7.5 0.095March 2015 37,954 8.9 0.314 0.042 1,138,620 7.5 0.086April 2014 31,619 9.0 0.112 <0.020 948,570 7.1 0.056Total flows:April 2015 857,119 March 2015 1,176,567 April 2014 948,574




MAY 2015


FLOW LAB TOTAL TOTAL MYRA CREEK LAB TOTALRATE pH ZINC COPPER FLOW RATE pH ZINC

DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/5/2015 22,975 8.5 0.159 0.033 871,876 7.6 0.0812/5/2015 25,679 8.5 0.262 0.031 800,678 7.6 0.0823/5/2015 26,608 8.6 0.250 0.025 749,396 7.5 0.0834/5/2015 23,954 8.6 0.210 0.026 752,888 7.5 0.0835/5/2015 21,405 8.6 0.127 <0.020 768,475 7.3 0.0746/5/2015 18,666 8.7 0.095 <0.020 739,341 7.4 0.0597/5/2015 29,274 8.7 0.075 <0.020 725,182 7.5 0.0658/5/2015 27,166 8.6 0.088 <0.020 727,645 7.5 0.0679/5/2015 21,650 8.6 0.135 <0.020 753,737 7.5 0.069

10/5/2015 18,920 8.5 0.163 <0.020 734,089 7.5 0.06811/5/2015 20,810 8.5 0.172 <0.020 684,711 7.5 0.07212/5/2015 22,280 8.4 0.147 <0.020 717,084 7.4 0.0685/13/2015 21,273 8.5 0.140 <0.020 710,332 7.5 0.1765/14/2015 21,587 8.6 0.125 <0.020 678,409 7.5 0.1185/15/2015 21,575 8.5 0.112 <0.020 662,785 7.5 0.0955/16/2015 27,730 8.5 0.138 <0.020 688,469 7.5 0.0765/17/2015 28,069 8.5 0.121 <0.020 715,722 7.5 0.0675/18/2015 29,987 8.5 0.125 <0.020 689,232 7.4 0.0665/19/2015 31,945 8.5 0.132 <0.020 688,046 7.4 0.0795/20/2015 28,968 8.5 0.061 <0.020 691,690 7.6 0.0565/21/2015 27,028 8.5 0.043 <0.020 681,669 7.6 0.0485/22/2015 23,889 8.5 0.053 <0.020 657,305 7.6 0.0485/23/2015 30,362 8.6 0.086 <0.020 651,463 7.6 0.0585/24/2015 27,710 8.5 0.071 <0.020 616,076 7.6 0.0585/25/2015 24,960 8.5 0.061 <0.020 578,822 7.5 0.0605/26/2015 19,650 8.5 0.038 <0.020 544,711 7.6 0.0615/27/2015 21,430 8.5 0.059 <0.020 563,299 7.5 0.0685/28/2015 23,820 8.5 0.066 <0.020 564,225 7.6 0.0695/29/2015 23,505 8.5 0.076 <0.020 542,702 7.6 0.0765/30/2015 29,477 8.5 0.082 <0.020 507,889 7.5 0.0865/31/2015 30,476 8.5 0.048 <0.020 483,573 7.5 0.084

Averages:May 2015 24,930 8.5 0.114 <0.020 675,533 7.5 0.075April 2015 28,571 8.6 0.259 0.032 885,701 7.5 0.095May 2014 29,604 9.0 0.102 <0.020 917,724 7.2 0.045Total flows:May 2015 772,828 April 2015 857,119 May 2014 917,709




JUNE 2015



DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/6/2015 25,567 8.6 0.041 <0.020 470,922 7.5 0.0822/6/2015 25,174 8.7 0.056 <0.020 587,687 7.6 0.0693/6/2015 18,992 8.6 0.038 <0.020 496,422 7.6 0.1474/6/2015 21,229 8.6 0.071 <0.020 454,884 7.6 0.1375/6/2015 18,625 8.6 0.098 <0.020 441,334 7.5 0.1216/6/2015 21,914 8.6 0.084 <0.020 449,090 7.6 0.1057/6/2015 30,109 8.5 0.093 <0.020 474,541 7.6 0.1028/6/2015 23,820 8.4 0.092 <0.020 448,346 7.6 0.0969/6/2015 19,215 8.3 0.054 <0.020 414,251 7.5 0.095

10/6/2015 16,537 8.5 0.062 <0.020 372,584 7.5 0.07611/6/2015 20,680 8.5 0.083 <0.020 355,101 7.5 0.08512/6/2015 22,450 8.5 0.079 <0.020 347,424 7.5 0.0926/13/2015 22,715 8.5 0.094 <0.020 325,182 7.5 0.0996/14/2015 25,694 8.5 0.062 <0.020 310,455 7.5 0.1066/15/2015 24,221 8.5 0.048 <0.020 299,367 7.4 0.1036/16/2015 22,635 8.5 0.036 <0.020 299,824 7.4 0.1016/17/2015 21,855 8.4 0.032 <0.020 297,710 7.3 0.0656/18/2015 25,450 8.5 0.037 <0.020 292,799 7.4 0.0836/19/2015 20,300 8.5 0.024 <0.020 285,037 7.5 0.0946/20/2015 18,571 8.5 0.020 <0.020 288,440 7.6 0.0826/21/2015 23,750 8.5 0.019 <0.020 283,172 7.6 0.1306/22/2015 20,666 8.5 0.011 <0.020 267,571 7.6 0.1116/23/2015 22,854 8.8 0.010 <0.020 275,100 7.6 0.1166/24/2015 16,157 8.5 0.151 0.022 261,481 7.6 0.0956/25/2015 16,607 8.4 0.152 0.023 282,606 7.6 0.0876/26/2015 17,808 8.3 0.085 <0.020 320,314 7.6 0.1056/27/2015 17,168 8.4 0.188 <0.020 299,475 7.6 0.1386/28/2015 14,803 8.4 0.205 <0.020 291,029 7.6 0.1706/29/2015 17,542 8.4 0.249 <0.020 296,083 7.5 0.0916/30/2015 16,865 8.4 0.106 <0.020 301,387 7.6 0.083

Averages:June 2015 20,999 8.5 0.079 <0.020 352,987 7.5 0.102May 2015 24,930 8.5 0.114 <0.020 747,900 7.5 0.075June 2014 28,955 9.0 0.132 <0.020 868,650 7.2 0.033Total flows:June 2015 629,973 May 2015 772,828 June 2014 868,639




JULY 2015


Myra Ponds (EMS-ID: E100666)

Effluent Daily Composite Sampling


DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/7/2015 19,495 8.5 0.038 <0.020 293,250 7.7 0.0842/7/2015 20,745 8.4 0.131 <0.020 278,192 7.6 0.0893/7/2015 18,155 8.5 0.120 <0.020 268,959 7.6 0.1304/7/2015 19,400 8.4 0.126 <0.020 263,107 7.6 0.0985/7/2015 15,287 8.5 0.026 <0.020 236,873 7.7 0.0936/7/2015 16,693 8.4 0.031 <0.020 238,308 7.7 0.1017/7/2015 18,960 8.3 0.136 0.020 235,367 7.7 0.1548/7/2015 24,809 8.5 0.026 <0.020 248,122 7.9 0.0979/7/2015 22,452 8.6 0.027 <0.020 251,688 7.9 0.102

10/7/2015 22,701 8.3 0.065 <0.020 252,429 7.9 0.09811/7/2015 21,318 8.7 0.049 <0.020 243,894 7.9 0.10412/7/2015 20,979 8.4 0.025 <0.020 263,641 7.9 0.0927/13/2015 21,972 8.3 0.017 <0.020 313,466 7.9 0.0847/14/2015 21,528 8.3 0.018 <0.020 251,945 7.8 0.0897/15/2015 20,546 8.3 0.085 <0.020 219,050 7.9 0.1047/16/2015 19,653 8.4 0.030 <0.020 203,110 7.9 0.1077/17/2015 21,139 8.4 0.037 <0.020 196,900 7.9 0.1067/18/2015 20,772 8.4 0.080 <0.020 213,386 7.8 0.1087/19/2015 20,035 8.3 0.066 <0.020 233,844 7.8 0.1097/20/2015 20,450 8.2 0.061 <0.020 236,363 7.8 0.1107/21/2015 18,375 8.5 0.039 <0.020 220,520 7.8 0.1247/22/2015 19,485 8.4 0.067 <0.020 242,913 7.6 0.0927/23/2015 19,300 8.3 0.029 <0.020 204,621 7.7 0.0967/24/2015 19,386 8.5 0.023 <0.020 191,705 7.7 0.1047/25/2015 19,492 8.5 0.024 <0.020 201,939 7.7 0.1207/26/2015 20,761 8.5 0.071 <0.020 224,287 7.7 0.1637/27/2015 21,648 8.4 0.128 <0.020 248,625 7.7 0.1877/28/2015 20,980 7.9 0.188 0.022 210,901 7.7 0.1217/29/2015 20,980 8.6 0.068 <0.020 200,004 7.8 0.1907/30/2015 20,557 8.7 0.054 <0.020 187,880 7.8 0.2277/31/2015 20,735 8.6 0.069 <0.020 182,693 7.8 0.150

Averages:July 2015 20,283 8.4 0.063 <0.020 234,128 7.8 0.117June 2015 20,999 8.5 0.079 <0.020 352,987 7.5 0.10241821 26,389 9.0 0.181 0.025 450,335 7.3 0.053Total flows:July 2015 628,788 June 2015 629,973 41821 818,055

Myra Creek (EMS-ID: E206805)

TP4 Daily Composite Sampling


AUGUST 2015




10/8/2015 22,271 8.4 0.110 <0.020 433,148 7.8 0.09511/8/2015 21,410 8.4 0.094 <0.020 362,486 7.7 0.10912/8/2015 20,682 8.4 0.095 <0.020 298,465 7.7 0.5218/13/2015 20,860 8.6 0.156 <0.020 261,159 7.7 0.2648/14/2015 20,245 8.8 0.101 <0.020 239,279 7.7 0.1848/15/2015 20,111 8.7 0.057 <0.020 225,464 7.7 0.1258/16/2015 19,360 8.9 0.035 <0.020 204,871 7.7 0.1128/17/2015 19,428 8.5 0.032 <0.020 184,314 7.6 0.1018/18/2015 19,930 8.5 0.030 <0.020 180,779 7.6 0.1158/19/2015 14,173 8.4 0.059 <0.020 176,013 7.9 0.1918/20/2015 18,580 8.5 0.038 <0.020 196,780 8.0 0.2178/21/2015 18,022 8.7 0.030 <0.020 171,446 7.9 0.1728/22/2015 18,536 8.7 0.020 <0.020 152,889 7.8 0.1448/23/2015 17,692 8.9 0.034 <0.020 138,286 7.8 0.1338/24/2015 18,733 8.8 0.020 <0.020 132,581 7.7 0.1288/25/2015 18,785 8.5 0.026 <0.020 127,038 7.7 0.1288/26/2015 19,386 8.5 0.058 <0.020 143,052 7.8 0.0908/27/2015 19,618 8.5 0.045 <0.020 143,793 7.8 0.0938/28/2015 17,737 8.5 0.040 <0.020 139,156 7.8 0.0998/29/2015 24,982 8.7 0.067 <0.020 719,526 7.7 0.1268/30/2015 24,253 9.0 0.074 <0.020 1,093,491 7.7 0.0848/31/2015 32,908 8.8 0.143 <0.020 1,432,543 7.7 0.046

Averages:August 2015 20,414 8.6 0.078 <0.020 304,247 7.8 0.137July 2015 20,283 8.4 0.063 <0.020 234,128 7.8 0.117August 2014 24,764 9.0 0.272 0.022 296,942 7.2 0.131Total flows:August 2015 632,841 July 2015 628,788 August 2014 767,682




SEPTEMBER 2015



DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 9/1/2015 31,860 8.9 0.176 0.022 1,129,893 7.8 0.0449/2/2015 30,876 8.6 0.150 0.020 1,229,623 7.6 0.0589/3/2015 28,835 8.6 0.108 <0.020 892,925 7.8 0.0549/4/2015 26,979 8.6 0.068 <0.020 695,381 7.8 0.0569/5/2015 27,471 8.7 0.083 <0.020 598,410 7.8 0.0559/6/2015 24,820 8.7 0.062 <0.020 588,534 7.7 0.0569/7/2015 24,202 8.7 0.060 <0.020 532,583 7.7 0.0539/8/2015 23,358 8.8 0.050 <0.020 591,930 7.6 0.0589/9/2015 19,108 8.8 0.079 0.023 625,755 7.7 0.063

9/10/2015 25,249 8.6 0.106 0.025 540,032 7.6 0.1059/11/2015 26,052 8.5 0.058 <0.020 480,520 7.6 0.0979/12/2015 25,004 8.5 0.063 <0.020 436,145 7.5 0.0749/13/2015 25,004 8.6 0.069 <0.020 406,322 7.6 0.0669/14/2015 22,150 8.8 0.066 <0.020 374,619 7.6 0.0669/15/2015 22,986 8.8 0.072 <0.020 404,737 7.6 0.0659/16/2015 22,950 8.8 0.066 <0.020 398,637 7.6 0.1859/17/2015 24,803 8.6 0.070 <0.020 497,043 7.6 0.1089/18/2015 23,474 8.5 0.088 <0.020 454,454 7.7 0.0869/19/2015 27,742 8.5 0.101 <0.020 792,158 7.5 0.0699/20/2015 40,043 8.5 0.133 <0.020 1,772,770 7.5 0.0779/21/2015 27,298 8.5 0.063 <0.020 917,474 7.5 0.0649/22/2015 27,768 8.5 0.079 <0.020 735,726 7.6 0.0639/23/2015 50,184 8.7 0.198 <0.020 1,523,894 7.6 0.0599/24/2015 58,412 8.7 0.189 0.026 1,800,114 7.6 0.0609/25/2015 38,612 8.6 0.109 <0.020 1,080,693 7.6 0.0639/26/2015 33,633 8.5 0.084 <0.020 845,786 7.7 0.0669/27/2015 31,264 8.6 0.090 <0.020 727,603 7.6 0.0729/28/2015 28,794 8.6 0.090 <0.020 648,258 7.5 0.0759/29/2015 28,135 8.6 0.095 <0.020 592,890 7.6 0.0799/30/2015 27,799 8.7 0.136 <0.020 550,745 7.6 0.044

Averages:Sept 2015 29,162 8.6 0.095 0.023 762,188 7.6 0.071August 2015 20,414 8.6 0.078 <0.020 304,247 7.8 0.137September 2014 24,078 9.0 0.200 0.021 311,534 7.2 0.148Total flows:Sept 2015 874,865 Aug 2015 632,841 Sept 2014 722,343




OCTOBER 2015




10/10/2015 64,519 8.6 0.193 0.024 2,321,365 7.7 0.05711/10/2015 63,208 8.6 0.207 <0.020 1,231,090 7.7 0.05612/10/2015 47,252 8.6 0.165 <0.020 1,531,794 7.6 0.05810/13/2015 32,982 8.5 0.132 <0.020 986,867 7.5 0.06210/14/2015 28,646 8.6 0.192 0.022 816,045 7.7 0.05210/15/2015 26,670 8.7 0.154 <0.020 717,298 7.7 0.04910/16/2015 26,706 8.6 0.188 0.024 648,352 7.7 0.05710/17/2015 27,650 8.5 0.133 <0.020 614,484 7.7 0.06210/18/2015 28,965 8.7 0.105 <0.020 607,967 7.7 0.06110/19/2015 31,520 8.9 0.091 <0.020 663,801 7.7 0.06210/20/2015 21,965 8.6 0.053 <0.020 626,397 7.6 0.08810/21/2015 26,788 8.6 0.086 0.021 586,982 7.6 0.08410/22/2015 27,296 8.5 0.098 0.021 591,324 7.7 0.08510/23/2015 26,146 8.5 0.088 <0.020 541,626 7.7 0.08410/24/2015 26,919 8.7 0.066 <0.020 505,753 7.7 0.08910/25/2015 28,924 8.7 0.114 0.024 528,057 7.6 0.08810/26/2015 28,492 8.6 0.087 0.021 533,845 7.6 0.08810/27/2015 25,542 8.8 0.100 <0.020 492,189 7.7 0.10010/28/2015 25,948 8.6 0.070 <0.020 566,177 7.8 0.08910/29/2015 29,095 8.6 0.076 <0.020 845,216 7.8 0.08010/30/2015 34,580 8.7 0.110 <0.020 1,217,905 7.8 0.07010/31/2015 38,972 8.7 0.115 <0.020 1,339,779 7.8 0.069

Averages:October 2015 30,652 8.6 0.104 0.024 739,291 7.7 0.065September 2015 29,162 8.6 0.095 0.023 762,188 7.6 0.071October 2014 45,475 9.0 0.254 0.023 876,801 7.2 0.068Total flows:October 2015 950,213 September 2015 874,865 October 2014 1,409,739




NOVEMBER 2015



DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/11/2015 32,641 8.6 0.149 <0.020 1,173,282 7.7 0.0662/11/2015 26,892 8.6 0.100 <0.020 887,376 7.7 0.0693/11/2015 25,864 8.7 0.111 <0.020 758,094 7.6 0.0714/11/2015 26,853 8.5 0.121 <0.020 683,571 7.6 0.0785/11/2015 27,365 8.7 0.103 <0.020 650,502 7.8 0.0736/11/2015 45,757 8.6 0.135 0.022 1,173,736 7.8 0.0577/11/2015 44,367 8.5 0.227 0.034 1,636,618 7.7 0.0698/11/2015 36,732 8.5 0.224 0.030 954,454 7.7 0.0689/11/2015 33,850 8.7 0.269 0.033 808,159 7.8 0.072

10/11/2015 31,296 8.7 0.184 0.026 786,421 7.8 0.07011/11/2015 29,280 8.6 0.208 0.031 878,016 7.7 0.05612/11/2015 56,351 8.7 0.468 0.064 1,400,314 7.7 0.06011/13/2015 47,868 8.5 0.368 0.059 1,794,960 7.7 0.04011/14/2015 33,877 8.5 0.380 0.053 1,080,958 7.7 0.06611/15/2015 29,259 8.3 0.368 0.050 892,110 7.7 0.08911/16/2015 38,984 8.4 0.264 0.039 851,689 7.8 0.02411/17/2015 60,245 8.3 0.259 0.046 1,686,668 7.8 0.06011/18/2015 38,972 8.6 0.340 0.041 1,141,041 7.8 0.06211/19/2015 32,980 8.6 0.322 0.033 912,856 7.5 0.08311/20/2015 31,250 8.6 0.305 0.025 801,296 7.5 0.09511/21/2015 29,354 8.4 0.246 0.024 725,244 7.4 0.10911/22/2015 28,252 8.4 0.270 0.036 679,716 7.5 0.12211/23/2015 26,350 8.4 0.410 0.077 650,966 7.4 0.11211/24/2015 21,806 8.4 0.257 0.032 612,774 7.4 0.11611/25/2015 19,404 8.6 0.314 0.032 571,383 7.3 0.12611/26/2015 19,956 8.6 1.142 0.251 545,877 7.3 0.15011/27/2015 21,170 8.6 1.871 0.460 523,359 7.3 0.14611/28/2015 26,265 8.6 0.485 0.117 509,434 7.3 0.14111/29/2015 26,233 8.6 0.170 0.035 489,413 7.3 0.14511/30/2015 26,598 8.6 0.208 0.034 473,513 7.4 0.141

Averages:November 2015 32,536 8.5 0.343 0.067 891,127 7.6 0.088October 2015 30,652 8.6 0.104 0.024 739,291 7.7 0.065November 2014 42,547 9.0 0.288 0.021 801,370 7.5 0.090Total flows:November 2015 976,071 October 2015 911,241 November 2014 1,276,408




DECEMBER 2015



DATE m3/day pH unit mg/L mg/L m3/day pH unit mg/L 1/12/2015 48,448 8.5 0.908 0.177 732,529 7.4 0.1142/12/2015 104,686 8.5 1.117 0.143 1,122,713 7.5 0.0913/12/2015 89,583 8.4 1.032 0.141 2,416,620 7.6 0.0854/12/2015 50,820 8.5 0.582 0.083 1,352,402 7.3 0.1495/12/2015 86,675 8.7 0.619 0.066 1,373,456 7.2 0.2036/12/2015 79,950 8.6 0.574 0.065 1,723,461 7.2 0.1417/12/2015 69,297 8.4 0.372 0.051 1,760,206 7.2 0.0548/12/2015 91,067 8.5 0.337 0.050 2,138,707 7.4 0.0779/12/2015 60,146 8.4 0.402 0.048 1,538,181 7.3 0.056

10/12/2015 83,933 8.6 0.360 0.053 1,291,718 7.3 0.07611/12/2015 56,044 8.5 0.408 0.060 1,127,789 7.5 0.09012/12/2015 55,441 8.5 0.294 0.048 976,927 7.5 0.12012/13/2015 42,000 8.5 0.364 0.069 883,907 7.4 0.11812/14/2015 34,849 8.5 0.390 0.046 788,613 7.3 0.14512/15/2015 31,323 8.6 0.237 0.022 724,385 7.3 0.15512/16/2015 30,787 8.6 0.112 0.020 677,282 7.5 0.12512/17/2015 34,532 8.7 0.106 <0.020 650,260 7.5 0.12512/18/2015 33,616 8.8 0.133 0.022 638,202 7.6 0.11112/19/2015 36,855 8.6 0.162 0.021 643,437 7.6 0.10412/20/2015 36,980 8.5 0.180 0.024 676,823 7.5 0.10512/21/2015 33,420 8.6 0.165 <0.020 632,518 7.8 0.07812/22/2015 32,520 8.6 0.139 <0.020 589,209 7.8 0.08012/23/2015 34,667 8.7 0.182 <0.020 583,872 7.7 0.07912/24/2015 30,708 8.7 0.210 <0.020 548,315 7.7 0.08012/25/2015 27,031 8.6 0.246 <0.020 509,713 7.8 0.07812/26/2015 28,858 8.6 0.205 <0.020 500,730 7.7 0.07812/27/2015 27,438 8.4 0.161 <0.020 506,794 7.7 0.07812/28/2015 26,418 8.6 0.188 <0.020 480,828 7.7 0.07412/29/2015 23,732 8.5 0.129 <0.020 454,027 7.7 0.07512/30/2015 23,528 8.5 0.138 <0.020 428,877 7.7 0.07412/31/2015 24,733 8.5 0.166 <0.020 413,451 7.7 0.074

Averages:December 2015 47,422 8.6 0.343 0.064 931,805 7.5 0.100November 2015 32,536 8.5 0.343 0.067 1,008,616 7.6 0.088December 2014 53,335 9.0 0.460 0.037 1,653,385 7.3 0.194Total flows:December 2015 1,470,085 November 2015 976,071 December 2014 1,653,399



Appendix B

Weather Data

MONTHLY PRECIPITATION 1979-2006

Nyrstar MYRA FALLS Appendix B - Weather Data

Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov DecYEAR mm mm mm mm mm mm mm mm mm mm mm mm TOTAL

*1979 345.2 268.3 246.9 161.0 102.8 70.8 124.8 46.7 383.8 343.0 187.0 619.8 2900.21980 269.8 296.2 89.5 240.7 51.7 87.3 69.5 36.9 181.0 179.9 496.8 706.4 2705.71981 346.4 427.8 117.7 277.7 114.3 125.2 78.1 62.6 310.2 450.3 466.3 412.0 3188.61982 298.5 505.4 109.9 193.2 22.4 27.1 18.5 34.5 89.4 778.9 212.7 492.7 2783.21983 529.5 624.4 375.3 83.5 41.5 130.0 94.7 59.6 59.7 217.8 619.3 192.8 3028.1

*1984 399.3 519.5 246.9 262.9 192.7 31.5 8.8 40.3 95.0 576.1 339.8 220.1 2932.9*1985 64.0 175.2 147.5 114.2 85.2 21.1 32.3 21.2 76.9 319.1 435.2 373.4 1865.2*1986 345.2 268.3 418.1 88.2 238.9 89.2 41.3 4.0 54.0 589.7 435.2 390.0 2962.1*1987 345.2 336.8 425.3 262.7 223.2 184.0 59.4 18.3 98.4 83.8 591.8 437.4 3066.31988 343.2 202.8 211.9 215.4 215.4 80.0 25.4 29.1 114.2 246.4 581.5 201.2 2466.51989 329.3 102.3 224.0 198.0 62.5 71.8 41.7 41.8 17.6 339.4 249.8 252.6 1930.81990 372.0 282.9 122.5 58.6 81.9 129.8 31.3 70.3 18.6 565.0 806.4 343.9 2883.21991 353.0 542.7 85.9 126.1 80.1 27.9 33.3 206.8 8.0 59.9 596.4 610.0 2730.11992 859.7 305.2 45.2 244.4 6.0 41.2 10.9 35.6 89.9 390.0 257.2 241.2 2526.51993 57.4 55.0 288.5 207.3 148.0 64.4 77.2 92.4 1.3 179.7 141.2 393.0 1705.41994 258.2 268.3 203.0 149.3 79.0 137.1 6.2 47.4 74.1 218.5 379.6 498.7 2319.4

*1995 345.2 268.3 246.9 159.0 101.6 66.1 44.1 59.9 111.4 320.7 435.2 373.4 2531.8*1996 345.2 268.3 246.9 159.0 101.6 66.1 44.1 59.9 111.4 320.7 435.2 373.4 2531.81997 345.2 64.3 259.2 216.9 124.2 182.8 72.0 114.4 0.0 442.0 348.0 374.2 2543.21998 571.3 418.5 158.6 20.6 36.8 14.2 67.2 2.6 3.0 130.0 472.5 279.4 2174.71999 219.2 295.1 173.5 96.0 50.0 16.0 1.0 114.1 54.5 138.0 666.5 183.1 2007.02000 50.2 218.3 98.6 75.8 131.5 49.9 123.6 51.6 61.9 324.6 168.2 125.2 1479.4

*2001 332.6 123.4 144.4 107.3 132.1 38.4 38.0 163.2 67.0 199.8 519.2 367.1 2232.52002 194.6 133.5 56.4 92.9 41.4 22.9 28.3 26.8 50.6 33.8 588.0 288.2 1557.42003 471.1 61.1 412.0 176.9 50.3 51.4 44.0 30.0 45.1 557.8 94.0 347.5 2341.22004 327.0 133.6 159.9 39.5 24.1 42.0 23.0 73.5 156.5 218.0 488.5 340.0 2025.62005 433.0 70.0 223.0 396.2 305.9 57.5 100.3 54.0 98.0 514.9 268.2 521.5 3042.52006 615.5 315.5 378.5 125.0 75.5 46.0 28.0 5.2 76.5 139.0 811.0 560.5 3176.22007 538.0 287.9 438.3 207.8 75.4 128.8 71.0 69.0 167.1 409.6 491.3 415.5 3299.72008 250.0 176.0 188.4 59.0 79.5 29.2 8.0 161.6 21.8 260.4 457.6 162.8 1854.32009 139.6 138.5 290.5 91.4 171.0 43.5 34.9 17.0 164.7 321.0 882.4 258.0 2552.52010 666.1 353.0 380.8 222.5 171.0 60.4 2.4 18.5 268.7 477.6 284.7 629.3 3535.02011 283.6 327.1 528.2 165.9 80.1 11.9 81.9 42.0 339.8 295.4 478.1 199.8 2833.82012 600.5 241.1 424.1 199.3 54.7 86.0 10.0 14.4 15.6 317.0 525.2 264.3 2752.22013 96.0 273.2 168.4 111.6 124.6 65.6 3.0 124.6 277.0 57.4 226.7 99.8 1627.92014 170.3 243.3 341.1 170.4 47.9 32.4 32.4 17.3 143.5 589.4 404.2 547.9 2740.12015 262.8 337.5 460.5 105.4 35.1 14.9 20.3 148.8 217.0 262.3 260.9 719.2 2844.7

# Years 37 37 37 37 37 37 37 37 37 37 37 37 37Mean 345.2 268.3 246.9 159.0 101.6 66.1 44.1 59.9 111.4 320.7 435.2 373.4 2531.8Median 345.2 268.3 224.0 159.0 80.1 57.5 34.9 46.7 89.4 319.1 435.2 373.4 2552.5St Dev 175.9 138.6 129.2 78.6 68.1 45.5 33.3 49.5 98.8 176.4 189.1 162.2 524.7Max 859.7 624.4 528.2 396.2 305.9 184.0 124.8 206.8 383.8 778.9 882.4 719.2 3535.0Min 50.2 55.0 45.2 20.6 6.0 11.9 1.0 2.6 0.0 33.8 94.0 99.8 1479.4*year Significantly high Greater than the mean + 1 standard deviation

Significantly low Less than the mean - 1 standard deviationdenotes that average month precipitation values were used in lieu of

missing data (updated to reflect averages to 2015)

CHART 4

NVI MINING LTD.MYRA FALLS OPERATIONSAppendix B - Weather Data

0

100

200

300

400

500

600

700

800

900

1000

Jan Feb Mar Apr May Jun Jul Aug Sept Oct Nov Dec

Mon

thly

Pre

cipi

tatio

n (m

m)

Monthly Precipitation and Multi-year Average Previous 10 Years Data with 37 Year Monthly Average

2006

2007

2008

2009

2010

2011

2012

2013

2014

2015

Mean

108.3

78.3

35.7

56.1

0.00

2.00

4.00

6.00

8.00

10.00

12.00

14.00

0

20

40

60

80

100

120

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Snow

(cm

)

Rain

(mm

)

Month

Precipitation 2015

Rain (mm)

Snow Accumulated (cm)

Appendix C

Water Treatment process Flowchart

Appendix D

Tabulated Water Quality Data

2010 Annual Water Quality Report - Willow Creek Mine Appendix B - 6

Total Aluminum (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0579 0.1520 0.0569 0.0532 0.0183 0.0149

February 0.0483 0.2150 7.03 0.0584 0.0520 0.0284 0.0149

March 0.0442 0.1470 0.0500 0.0450 0.0135 0.0150

April 0.0470 0.2360 0.0542 0.0679 0.0359 0.0183

May 0.0401 0.1460 0.0322 0.0386 0.0262 0.0159

June 0.0234 0.1420 0.0446 0.0319 0.0171 0.0157

July 0.0255 0.0938 0.0417 0.0301 0.0122 0.0153

August 0.1380 0.1070 0.0422 0.0541 0.0111 0.0135

September 0.0263 0.2170 0.0486 0.0372 0.0124 0.0127

October 0.0272 0.1870 0.0470 0.0402 0.0056 0.0142

November 0.1330 0.4010 16.30 0.1590 0.1790 0.0073 0.0156

December 0.0447 0.2970 0.0524 0.0433 0.0089 0.0173

Mean 0.0546 0.1951 11.6650 0.0573 0.0560 0.0164 0.0153

Minimum 0.0234 0.0938 7.0300 0.0322 0.0301 0.0056 0.0127

Maximum 0.1380 0.4010 16.3000 0.1590 0.1790 0.0359 0.0183

Median 0.0445 0.1695 11.6650 0.0493 0.0442 0.0130 0.0152

Stdev 0.0393 0.0868 6.5549 0.0329 0.0402 0.0093 0.0015

n 12 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

BC WQG n/a n/a n/a n/a n/a n/a n/a

Dissolved Aluminum (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0566 0.0789 0.0496 0.0451 0.0100 0.0107

February 0.0429 0.1030 5.83 0.0400 0.0380 0.0098 0.0114

March 0.0398 0.1090 0.0399 0.0349 0.0100 0.0132

April 0.0364 0.1550 0.0413 0.0369 0.0088 0.0124

May 0.0323 0.1260 0.0288 0.0291 0.0125 0.0128

June 0.0232 0.1310 0.0373 0.0311 0.0109 0.0121

July 0.0267 0.0827 0.0383 0.0285 0.0130 0.0120

August 0.0773 0.0741 0.0324 0.0374 0.0118 0.0112

September 0.1570 0.0358 0.0319 0.0040 0.0104

October 0.031 0.1690 0.0404 0.0336 0.0067 0.0115

November 0.0908 0.2120 12.40 0.0964 0.0986 0.0056 0.0153

December 0.0606 0.1010 0.0276 0.0252 0.00658 0.0205

Mean 0.0471 0.1249 9.1150 0.0423 0.0392 0.0091 0.0128

Minimum 0.0232 0.0741 5.8300 0.0276 0.0252 0.0040 0.0104

Maximum 0.0908 0.2120 12.4000 0.0964 0.0986 0.0130 0.0205

Median 0.0398 0.1175 9.1150 0.0391 0.0343 0.0099 0.0121

Stdev 0.0218 0.0419 4.6457 0.0180 0.0194 0.0029 0.0028

n 11 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

BC WQG max 0.10 0.10 0.10 0.10 0.10 0.10 0.10


BC WQG 30 day 0.050 0.050 0.050 0.050 0.050 0.050 0.050


Total Cadmium (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.000005 0.001010 0.000183 0.000186 0.000272 0.000015

February 0.000011 0.001480 0.216 0.000289 0.000270 0.000354 0.000022

March 0.000005 0.000308 0.000220 0.000198 0.000265 0.000019

April 0.000008 0.000812 0.000214 0.000317 0.000220 0.000023

May 0.000005 0.0004600 0.0001410 0.0001200 0.0003130 0.0000192

June 0.000005 0.0001320 0.0002370 0.0002190 0.0003440 0.0000205

July 0.000005 0.0001150 0.0003530 0.0003410 0.0003970 0.0000155

August 0.0000558 0.0008390 0.0004130 0.0003030 0.0003670 0.0000176

September 0.0050 0.0004630 0.0002040 0.0001830 0.0005510 0.000018

October 0.000005 0.0003660 0.0002230 0.0002060 0.0004390 0.000012

November 0.0000150 0.0012000 0.123 0.0000540 0.0000740 0.0003850 0.0000140

December 0.000005 0.0014000 0.0003370 0.0003020 0.0009090 0.000019

Mean 0.000427 0.000715 0.170 0.000239 0.000227 0.000401 0.000018

Minimum 0.000005 0.000115 0.123 0.000054 0.000074 0.000220 0.000012

Maximum 0.005000 0.001480 0.216 0.000413 0.000341 0.000909 0.000023

Median 0.000005 0.000638 0.170 0.000222 0.000213 0.000361 0.000019

Stdev 0.001440 0.000478 0.066 0.000098 0.000082 0.000182 0.000003

n 12 12 2 12 12 12 12

DL Range 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050


Dissolved Cadmium (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.000175 0.000348 0.000191 0.000269 0.000296 0.000016

February 0.000011 0.000424 0.209 0.000272 0.000269 0.000334 0.000020

March 0.000013 0.000137 0.000190 0.000179 0.000261 0.000017

April 0.000007 0.000355 0.000199 0.000199 0.000183 0.000016

May 0.0000053 0.0002680 0.0001320 0.0001150 0.0002630 0.0000202

June 0.000005 0.0000574 0.0002340 0.0002180 0.000319 0.00002

July 0.000005 0.0000671 0.0003260 0.0003000 0.0001680 0.0000136

August 0.0000380 0.0003510 0.0003010 0.0003030 0.0001910 0.0000134

September 0.0002160 0.0002020 0.000215 0.000586 0.000021

October 0.000013 0.0002330 0.0001990 0.000194 0.000346 0.000014

November 0.0000140 0.0006840 0.092 0.0000490 0.0000780 0.0003630 0.0000150

December 0.000042 0.0002870 0.0002970 0.000291 0.000895 0.00002

Mean 0.000030 0.000286 0.151 0.000216 0.000219 0.000350 0.000017

Minimum 0.000005 0.000057 0.092 0.000049 0.000078 0.000168 0.000013

Maximum 0.000175 0.000684 0.209 0.000326 0.000303 0.000895 0.000021

Median 0.000013 0.000278 0.151 0.000201 0.000217 0.000308 0.000017

Stdev 0.000050 0.000171 0.083 0.000078 0.000072 0.000204 0.000003

n 11 12 2 12 12 12 12

DL Range 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050 0.0000050

BC WQG max See tables. 0.005 0.003 See tables. See tables. 0.005 See tables.

BC WQG 30 day See tables. See tables. See tables. See tables.


MC M-1 0124784

MC M-2 0124785

Myra Ponds

E100666


MC TP4 E206805

Price 13L E100662

Gold River Bridge

0130080

January 0.000038 0.000564 0.000511 0.000038 0.000038 0.000145 0.000084

February 0.000042 0.000586 0.000481 0.000042 0.000042 0.000165 0.000082

March 0.000044 0.000582 0.000511 0.000044 0.000044 0.000174 0.000077

April 0.000047 0.000639 0.000511 0.000047 0.000047 0.000200 0.000078

May 0.000040 0.000609 0.000511 0.000040 0.000040 0.000211 0.000081

June 0.000053 0.000602 0.000511 0.000053 0.000053 0.000222 0.000083

July 0.000056 0.000508 0.000511 0.000056 0.000056 0.000194 0.000083

August 0.000048 0.000475 0.000511 0.000048 0.000048 0.000184 0.000082

September 0.000057 0.000465 0.000511 0.000057 0.000057 0.000171 0.000084

October 0.000062 0.000515 0.000511 0.000062 0.000062 0.000210 0.000084

November 0.000030 0.000515 0.000541 0.000030 0.000030 0.000144 0.000080

December 0.000055 0.000506 0.000511 0.000055 0.000055 0.000246 0.000088

MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00005 0.00232 0.00202 0.00005 0.00005 0.00035 0.00016

February 0.00006 0.00245 0.00186 0.00006 0.00006 0.00042 0.00016

March 0.00007 0.00243 0.00202 0.00007 0.00007 0.00045 0.00014

April 0.00007 0.00276 0.00202 0.00007 0.00007 0.00055 0.00015

May 0.00006 0.00259 0.00202 0.00006 0.00006 0.00059 0.00015

June 0.00008 0.00254 0.00202 0.00008 0.00008 0.00063 0.00016

July 0.00009 0.00201 0.00202 0.00009 0.00009 0.00052 0.00016

August 0.00007 0.00182 0.00202 0.00007 0.00007 0.00048 0.00016

September 0.00009 0.00177 0.00202 0.00009 0.00009 0.00044 0.00016

October 0.00011 0.00204 0.00202 0.00011 0.00011 0.00058 0.00016

November 0.00004 0.00204 0.00219 0.00004 0.00004 0.00034 0.00015

December 0.00009 0.00199 0.00202 0.00009 0.00009 0.00073 0.00017

Dissolved Cadmium 30-day average WQG in mg/L = 0.000458 if hardness is >285 and is = exp(0.736*ln(hardness) - 4.943)/1000 for hardness <285.

Dissolved Cadmium WQG max in mg/L = 0.00280 if hardness is >456 and is = exp(1.03*ln(hardness)-5.274)/1000 when hardness is <456.


Exceedence Verifier

MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January exceeds no exceeds exceeds exceeds no

February no no exceeds exceeds exceeds exceeds no

March no no exceeds exceeds exceeds no

April no no exceeds exceeds no no

May no no exceeds exceeds exceeds no

June no no exceeds exceeds exceeds no

July no no exceeds exceeds no no

August no no exceeds exceeds exceeds no

September no exceeds exceeds exceeds no

October no no exceeds exceeds exceeds no

November no exceeds exceeds exceeds exceeds exceeds no

December no no exceeds exceeds exceeds no

Exceedence Verifier

MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January exceeds no exceeds exceeds no no

February no no exceeds exceeds exceeds no no

March no no exceeds exceeds no no

April no no exceeds exceeds no no

May no no exceeds exceeds no no

June no no exceeds exceeds no no

July no no exceeds exceeds no no

August no no exceeds exceeds no no

September no exceeds exceeds exceeds no

October no no exceeds exceeds no no

November no no exceeds exceeds exceeds exceeds no

December no no exceeds exceeds exceeds no


Total Calcium (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 3.6 134.0 12.8 12.0 22.8 9.9

February 4.1 136.0 102.0 16.3 16.7 27.1 9.7

March 4.6 132.0 16.3 16.2 29.6 9.1

April 4.8 153.0 19.7 20.6 35.4 8.9

May 3.93 147.0 17.3 16.7 37.4 09.5

June 5.7 147.0 39.1 32.2 40.0 9.75

July 6.1 114.0 47.1 49.2 32.6 9.7

August 5.0 104.0 28.9 28.0 30.6 9.5

September 97.4 21.2 21.2 33.7 9.9

October 7.04 109.0 25.6 26.6 37.5 9.8

November 2.6 114.0 112.0 4.4 4.8 22.6 9.3

December 6.11 108.0 27.1 28.7 47.0 10.6

Mean 4.9 124.6 107.0 23.0 22.7 33.0 9.6

Minimum 2.6 97.4 102.0 4.4 4.8 22.6 8.9

Maximum 7.0 153.0 112.0 47.1 49.2 47.0 10.6

Median 4.8 123.0 107.0 20.5 20.9 33.2 9.7

Stdev 1.3 19.0 7.1 11.6 11.4 7.1 0.4

n 11 12 2 12 12 12 12

DL Range 0.050 0.050 0.050 0.050 0.050 0.050 0.050


Dissolved Calcium (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 3.8 131.0 13.0 12.3 22.5 9.7

February 4.2 131.0 104.0 16.5 16.1 25.8 9.9

March 4.4 133.0 15.9 16.2 29.2 8.8

April 4.7 154.0 19.3 19.4 33.7 8.8

May 3.76 149.0 16.6 16.2 38.8 08.9

June 5.72 144.0 37.5 31.9 37.4 9.79

July 6.9 110.0 45.6 46.6 30.4 9.7

August 4.9 106.0 27.6 27.3 30.8 9.4

September 97.4 21.2 21.2 33.7 9.7

October 6.84 98.3 24.8 25.8 37.5 9.52

November 2.7 113.0 81.2 4.4 4.6 23.7 9.1

December 5.79 93.4 26 27 43.5 9.57

Mean 4.9 121.7 92.6 22.4 22.1 32.3 9.4

Minimum 2.7 93.4 81.2 4.4 4.6 22.5 8.8

Maximum 6.9 154.0 104.0 45.6 46.6 43.5 9.9

Median 4.7 122.0 92.6 20.3 20.3 32.3 9.5

Stdev 1.3 21.3 16.1 11.1 10.8 6.4 0.4

n 11 12 2 12 12 12 12

DL Range 0.050 0.050 0.050 0.050 0.050 0.050 0.050



Total Copper (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00026 0.01810 0.00313 0.00314 0.00294 0.00065

February 0.00110 0.02770 3.53 0.00500 0.00478 0.00305 0.00066

March 0.00026 0.00794 0.00365 0.00377 0.00266 0.00083

April 0.00088 0.01320 0.00366 0.00685 0.00411 0.00059

May 0.00413 0.00517 0.00197 0.00286 0.00315 0.00064

June 0.000437 0.00328 0.00373 0.00290 0.00574 0.000593

July 0.00203 0.00379 0.00603 0.00646 0.00543 0.00042

August 0.09500 0.01130 0.01090 0.02580 0.00437 0.00074

September 0.00081 0.02090 0.00545 0.00321 0.00293 0.0011

October 0.00129 0.00952 0.00515 0.00512 0.00271 0.00047

November 0.00440 0.03510 3.54 0.00258 0.01350 0.00309 0.00073

December 0.00133 0.02310 0.00649 0.00545 0.00351 0.00356

Mean 0.00933 0.01493 3.54 0.00481 0.00699 0.00364 0.00092

Minimum 0.00026 0.00328 3.53 0.00197 0.00286 0.00266 0.00042

Maximum 0.09500 0.03510 3.54 0.01090 0.02580 0.00574 0.00356

Median 0.00120 0.01225 3.54 0.00437 0.00495 0.00312 0.00066

Stdev 0.02701 0.01014 0.01 0.00237 0.00661 0.00105 0.00085

n 12 12 2 12 12 12 12

DL Range 0.00050 0.00050 0.00050 0.00050 0.00050 0.00050 0.00050

BC WQG max See tables. 0.6 0.3 See tables. See tables. 0.6 See tables.BC WQG 30 day See tables See tables See tables See tablesDissolved Copper (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00085 0.00153 0.00283 0.00300 0.00286 0.00058

February 0.00063 0.00233 3.40 0.00396 0.00398 0.00274 0.00063

March 0.00122 0.00273 0.00302 0.00315 0.00263 0.00068

April 0.00076 0.00255 0.00303 0.00274 0.00242 0.00052

May 0.00240 0.00146 0.00181 0.00208 0.00243 0.00061

June 0.000625 0.00112 0.00284 0.00237 0.00278 0.00058

July 0.0045 0.00173 0.00440 0.00487 0.00433 0.00045

August 0.04360 0.00254 0.00767 0.01580 0.00446 0.00053

September 0.00443 0.00378 0.00324 0.00288 0.00090

October 0.0149 0.00290 0.00400 0.00392 0.00290 0.00041

November 0.00319 0.00198 2.64 0.00211 0.02060 0.00299 0.00058

December 0.0393 0.00127 0.00367 0.00314 0.00283 0.00113

Mean 0.01018 0.00221 3.02 0.00359 0.00574 0.00302 0.00063

Minimum 0.00063 0.00112 2.64 0.00181 0.00208 0.00242 0.00041

Maximum 0.04360 0.00443 3.40 0.00767 0.02060 0.00446 0.00113

Median 0.00240 0.00216 3.02 0.00335 0.00320 0.00285 0.00058

Stdev 0.01602 0.00092 0.54 0.00150 0.00596 0.00067 0.00020

n 11 12 2 12 12 12 12

DL Range 0.00050 0.00050 0.00050 0.00050 0.00050 0.00050 0.00050

BC WQG n/a 0.2 0.1 n/a n/a 0.2 n/a


MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080January 0.00038 0.01516 0.01326 0.00038 0.00038 0.00240 0.00114

February 0.00044 0.01596 0.01220 0.00044 0.00044 0.00285 0.00110

March 0.00047 0.01584 0.01326 0.00047 0.00047 0.00308 0.00102

April 0.00052 0.01796 0.01326 0.00052 0.00052 0.00372 0.00103

May 0.00042 0.01684 0.01326 0.00042 0.00042 0.00399 0.00109

June 0.00061 0.01656 0.01326 0.00061 0.00061 0.00428 0.00112

July 0.00065 0.01316 0.01326 0.00065 0.00065 0.00356 0.00112

August 0.00053 0.01200 0.01326 0.00053 0.00053 0.00331 0.00110

September 0.00067 0.01168 0.01326 0.00067 0.00067 0.00299 0.00114

October 0.00075 0.01340 0.01326 0.00075 0.00075 0.00396 0.00113

November 0.00028 0.01340 0.01432 0.00028 0.00028 0.00236 0.00107

December 0.00065 0.01308 0.01326 0.00065 0.00065 0.00492 0.00121

MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080January 0.00290 0.01516 0.03316 0.00290 0.00290 0.00763 0.00467

February 0.00304 0.01596 0.03067 0.00304 0.00304 0.00870 0.00459

March 0.00311 0.01584 0.03316 0.00311 0.00311 0.00923 0.00439

April 0.00321 0.01796 0.03316 0.00321 0.00321 0.01074 0.00442

May 0.00299 0.01684 0.03316 0.00299 0.00299 0.01138 0.00456

June 0.00343 0.01656 0.03316 0.00343 0.00343 0.01206 0.00464

July 0.00353 0.01316 0.03316 0.00353 0.00353 0.01038 0.00463

August 0.00325 0.01200 0.03316 0.00325 0.00325 0.00978 0.00458

September 0.00358 0.01168 0.03316 0.00358 0.00358 0.00902 0.00467

October 0.00377 0.01340 0.03316 0.00377 0.00377 0.01131 0.00466

November 0.00265 0.01340 0.03565 0.00265 0.00265 0.00756 0.00452

December 0.00352 0.01308 0.03316 0.00352 0.00352 0.01356 0.00484

Total Copper WQGL 30-day average in mg/L = 0.04*(hardness)/1000

Total Copper WQGL Max in mg/L = 0.094*(hardness)+2/1000


Total Iron (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0082 0.1770 0.0180 0.0180 0.0254 0.0088

February 0.0103 0.3580 52.8 0.0263 0.0259 0.0423 0.0121

March 0.0059 0.0582 0.0152 0.0144 0.0148 0.0051

April 0.0165 0.1170 0.0172 0.0335 0.0702 0.0082

May 0.0044 0.0362 0.0066 0.0067 0.0203 0.0068

June 0.0028 0.0201 0.0108 0.0066 0.0287 0.0091

July 0.0016 0.0202 0.0066 0.0057 0.0386 0.0112

August 0.0061 0.0419 0.0096 0.0071 0.0278 0.0096

September 0.0041 0.0733 0.0248 0.0114 0.0155 0.0080

October 0.0039 0.0453 0.0093 0.0090 0.0103 0.0066

November 0.0383 0.4580 103.0 0.0572 0.0862 0.0075 0.0132

December 0.0138 0.3050 0.0489 0.0256 0.0204 0.0068

Mean 0.010 0.143 77.90 0.021 0.021 0.027 0.009

Minimum 0.002 0.020 52.80 0.007 0.006 0.008 0.005

Maximum 0.038 0.458 103.00 0.057 0.086 0.070 0.013

Median 0.006 0.066 77.90 0.016 0.013 0.023 0.009

Stdev 0.010 0.150 35.50 0.016 0.023 0.017 0.002

n 12 12 2 12 12 12 12

DL Range 0.030 0.030 0.030 0.030 0.030 0.030 0.030

BC WQG max 1.0 1.0 1.0 1.0 1.0 1.0 1.0

Dissolved Iron (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0079 0.0018 0.0078 0.0062 0.0046 0.0022

February 0.0056 0.0020 52.1 0.0046 0.0052 0.0055 0.0026

March 0.0077 0.0016 0.0037 0.0041 0.0039 0.0016

April 0.0045 0.0021 0.0040 0.0040 0.0025 0.0020

May 0.0027 0.0018 0.0025 0.0026 0.0029 0.0021

June 0.0030 0.0027 0.0045 0.0074 0.0055 0.0039

July 0.0014 0.0056 0.0026 0.0065 0.0117 0.0027

August 0.0040 0.0024 0.0017 0.0024 0.0177 0.0035

September 0.0011 0.0030 0.0038 0.0075 0.0020

October 0.0037 0.0015 0.0022 0.0024 0.0069 0.0019

November 0.0173 0.0014 69.4 0.0179 0.0201 0.0038 0.0079

December 0.3270 0.0037 0.0035 0.0031 0.0045 0.0033

Mean 0.035 0.002 60.75 0.005 0.006 0.006 0.003

Minimum 0.001 0.001 52.10 0.002 0.002 0.003 0.002

Maximum 0.327 0.006 69.40 0.018 0.020 0.018 0.008

Median 0.005 0.002 60.75 0.004 0.004 0.005 0.002

Stdev 0.097 0.001 12.23 0.004 0.005 0.004 0.002

n 11 12 2 12 12 12 12

DL Range 0.030 0.030 0.030 0.030 0.030 0.030 0.030

BC WQG max 0.35 0.35 0.35 0.35 0.35 0.35 0.35


Total Lead (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.000020 0.002420 0.000159 0.000156 0.002270 0.000008

February 0.000346 0.004140 1.720 0.000395 0.000337 0.002880 0.000032

March 0.000031 0.001680 0.000418 0.000377 0.001810 0.000094

April 0.000711 0.005010 0.000438 0.001090 0.007880 0.000019

May 0.000489 0.001110 0.000136 0.000240 0.005030 0.000024

June 0.0000402 0.000834 0.000294 0.000160 0.003750 0.0000444

July 0.000326 0.001030 0.000564 0.000720 0.001960 0.000017

August 0.010100 0.002270 0.001070 0.002700 0.002570 0.000029

September 0.00011 0.001820 0.000383 0.000149 0.001460 0.000115

October 0.000289 0.001070 0.000460 0.000691 0.001470 0.000012

November 0.000488 0.009300 0.625 0.000363 0.001310 0.000864 0.000021

December 0.000299 0.003370 0.000781 0.000320 0.008310 0.000086

Mean 0.001104 0.002838 1.173 0.000455 0.000688 0.003355 0.000042

Minimum 0.000020 0.000834 0.625 0.000136 0.000149 0.000864 0.000008

Maximum 0.010100 0.009300 1.720 0.001070 0.002700 0.008310 0.000115

Median 0.000313 0.002045 1.173 0.000407 0.000357 0.002420 0.000027

Stdev 0.002841 0.002426 0.774 0.000258 0.000739 0.002481 0.000036

n 12 12 2 12 12 12 12

DL Range 0.000050 0.000050 0.000050 0.000050 0.000050 0.000050 0.000050

BC WQG maxBC WQG 30 day

Dissolved Lead (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.000136 0.000082 0.000090 0.000125 0.001100 <0.0000050

February 0.000128 0.000050 1.60 0.000122 0.000185 0.001020 <0.0000050

March 0.000693 0.000081 0.000102 0.000210 0.000968 0.000010

April 0.000127 0.000281 0.000152 0.000097 0.001730 <0.0000050

May 0.000257 0.000107 0.000093 0.000108 0.002620 0.000010

June 0.000308 0.000207 0.000170 0.000262 0.00144 0.00002

July 0.000739 0.000671 0.000403 0.001150 0.000854 <0.0000050

August 0.004740 0.000196 0.000573 0.001520 0.001040 0.000008

September 0.000711 0.000244 0.000316 0.001200 0.000027

October 0.00367 0.000330 0.000283 0.000375 0.001480 0.000005

November 0.000279 0.000150 0.43 0.000165 0.001630 0.000565 0.000008

December 0.00145 0.000123 0.000110 0.00008 0.00545 0.000011

Mean 0.001139 0.000249 1.015 0.000209 0.000505 0.001622 0.000012

Minimum 0.000127 0.000050 0.430 0.000090 0.000080 0.000565 0.000005

Maximum 0.004740 0.000711 1.600 0.000573 0.001630 0.005450 0.000027

Median 0.000308 0.000173 1.015 0.000159 0.000236 0.001150 0.000010

Stdev 0.001584 0.000223 0.827 0.000148 0.000577 0.001314 0.000007

n 11 12 2 12 12 12 8

DL Range 0.000050 0.000050 0.000050 0.000050 0.000050 0.000050 0.000050

BC WQG n/a 0.05 0.03 n/a n/a 0.05 n/a

See side tables.See side tables.


MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080January 0.00053 0.05742 0.04842 0.00053 0.00053 0.00548 0.00212

February 0.00064 0.06131 0.04355 0.00064 0.00064 0.00685 0.00205

March 0.00069 0.06072 0.04842 0.00069 0.00069 0.00754 0.00184

April 0.00078 0.07125 0.04842 0.00078 0.00078 0.00960 0.00187

May 0.00060 0.06564 0.04842 0.00060 0.00060 0.01050 0.00201

June 0.00096 0.06426 0.04842 0.00096 0.00096 0.01148 0.00209

July 0.00105 0.04796 0.04842 0.00105 0.00105 0.00909 0.00208

August 0.00081 0.04264 0.04842 0.00081 0.00081 0.00828 0.00203

September 0.00109 0.04120 0.04842 0.00109 0.00109 0.00726 0.00212

October 0.00125 0.04907 0.04842 0.00125 0.00125 0.01040 0.00211

November 0.00035 0.04907 0.05340 0.00035 0.00035 0.00539 0.00197

December 0.00104 0.04759 0.04842 0.00104 0.00104 0.01371 0.00229

MC M-1 0124784

Myra Ponds

E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080January 0.00411 0.44518 0.37541 0.00411 0.00411 0.04252 0.01644

February 0.00497 0.47530 0.33763 0.00497 0.00497 0.05308 0.01586

March 0.00538 0.47076 0.37541 0.00538 0.00538 0.05844 0.01427

April 0.00602 0.55238 0.37541 0.00602 0.00602 0.07444 0.01448

May 0.00463 0.50891 0.37541 0.00463 0.00463 0.08144 0.01556

June 0.00742 0.49816 0.37541 0.00742 0.00742 0.08899 0.01622

July 0.00811 0.37181 0.37541 0.00811 0.00811 0.07049 0.01615

August 0.00626 0.33060 0.37541 0.00626 0.00626 0.06421 0.01571

September 0.00843 0.31942 0.37541 0.00843 0.00843 0.05632 0.01644

October 0.00973 0.38046 0.37541 0.00973 0.00973 0.08061 0.01637

November 0.00272 0.38046 0.41402 0.00272 0.00272 0.04180 0.01527

December 0.00805 0.36893 0.37541 0.00805 0.00805 0.10626 0.01778

Total Lead WQG max = e^(1.273*ln(hardness))-1.460)/1000 unless hardness >360 then = 0.14697.

Total Lead WQG 30 day average = 3.31*e^(1.273*LN(hardness)-4.705)/1000 unless hardness >360 then = 0.01956.


Total Manganese (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00031 0.17200 0.01330 0.01230 0.00219 0.00107

February 0.00045 0.22200 2.46 0.01690 0.01530 0.00384 0.00112

March 0.00041 0.18100 0.02190 0.01950 0.00192 0.00113

April 0.00091 0.44100 0.04010 0.04000 0.00275 0.00111

May 0.000229 0.17300 0.0166 0.0145 0.0046 0.00102

June 0.000168 0.11100 0.03100 0.02070 0.00604 0.00169

July 0.00005 0.05350 0.02870 0.01910 0.00992 0.00144

August 0.000354 0.13600 0.0290 0.0204 0.0108 0.00185

September 0.000236 0.07780 0.01440 0.01280 0.00497 0.0017

October 0.000323 0.07500 0.01670 0.01320 0.00486 0.000772

November 0.002130 0.13700 2.52 0.00643 0.00849 0.00145 0.00108

December 0.000952 0.15500 0.0290 0.0246 0.0116 0.00108

Mean 0.00054 0.16119 2.49 0.02200 0.01841 0.00541 0.00126

Minimum 0.00005 0.05350 2.46 0.00643 0.00849 0.00145 0.00077

Maximum 0.00213 0.44100 2.52 0.04010 0.04000 0.01160 0.00185

Median 0.00034 0.14600 2.49 0.01940 0.01720 0.00473 0.00112

Stdev 0.00057 0.10108 0.04 0.00959 0.00817 0.00353 0.00033

n 12 12 2 12 12 12 12

DL Range 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005

BC WQG maxBC WQG 30 day

Dissolved Manganese (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00024 0.09970 0.01170 0.01050 0.00230 0.00058

February 0.00024 0.15500 2.38 0.01450 0.01350 0.00428 0.00036

March 0.00272 0.15300 0.02060 0.01860 0.00232 0.00006

April 0.00068 0.36400 0.03760 0.03600 0.00166 0.00017

May 0.00036 0.11800 0.01460 0.01270 0.00398 0.00015

June 0.000284 0.05950 0.02590 0.01870 0.00572 0.000617

July 0.00012 0.00743 0.02150 0.01540 0.00287 <0.000050

August 0.00069 0.03530 0.02110 0.01600 0.00206 0.00009

September 0.04640 0.01200 0.00992 0.00465 0.0007

October 0.000191 0.05140 0.01410 0.0116 0.0048 0.000097

November 0.00074 0.10400 1.87 0.00310 0.00344 0.00131 0.00073

December 0.00224 0.09380 0.0226 0.02 0.0107 0.000601

Mean 0.00077 0.10729 2.13 0.01828 0.01553 0.00389 0.00038

Minimum 0.00012 0.00743 1.87 0.00310 0.00344 0.00131 0.00006

Maximum 0.00272 0.36400 2.38 0.03760 0.03600 0.01070 0.00073

Median 0.00036 0.09675 2.13 0.01760 0.01445 0.00343 0.00036

Stdev 0.00088 0.09288 0.36 0.00870 0.00792 0.00256 0.00027

n 11 12 2 12 12 12 11

DL Range 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005 0.00005


See side tables.See side tables.


MC M-1 0124784

Myra Ponds

E100666

Tailings Superna

t E207740

MC TP4 E206805

MC M-2 0124785

Price 13L

E100662

Gold River Bridge

0130080

January 0.6471 2.2726 2.0636 0.6471 0.6471 0.8686 0.7300

February 0.6538 2.3606 1.9470 0.6538 0.6538 0.9187 0.7264

March 0.6569 2.3474 2.0636 0.6569 0.6569 0.9434 0.7168

April 0.6618 2.5806 2.0636 0.6618 0.6618 1.0142 0.7181

May 0.6512 2.4574 2.0636 0.6512 0.6512 1.0441 0.7247

June 0.6719 2.4266 2.0636 0.6719 0.6719 1.0758 0.7286

July 0.6767 2.0526 2.0636 0.6767 0.6767 0.9970 0.7282

August 0.6635 1.9250 2.0636 0.6635 0.6635 0.9693 0.7256

September 0.6789 1.8898 2.0636 0.6789 0.6789 0.9337 0.7300

October 0.6877 2.0790 2.0636 0.6877 0.6877 1.0406 0.7295

November 0.6354 2.0790 2.1802 0.6354 0.6354 0.8650 0.7229

December 0.6763 2.0438 2.0636 0.6763 0.6763 1.1462 0.7379

MC M-1 0124784

Myra Ponds

E100666

Tailings Superna

t E207740

MC TP4 E206805

MC M-2 0124785

Price 13L

E100662

Gold River Bridge

0130080

January 0.6454 4.7166 4.1931 0.6454 0.6454 1.2001 0.8530

February 0.6623 4.9370 3.9011 0.6623 0.6623 1.3257 0.8442

March 0.6700 4.9039 4.1931 0.6700 0.6700 1.3874 0.8199

April 0.6822 5.4880 4.1931 0.6822 0.6822 1.5649 0.8232

May 0.6557 5.1794 4.1931 0.6557 0.6557 1.6398 0.8397

June 0.7075 5.1023 4.1931 0.7075 0.7075 1.7191 0.8497

July 0.7196 4.1656 4.1931 0.7196 0.7196 1.5219 0.8486

August 0.6866 3.8460 4.1931 0.6866 0.6866 1.4525 0.8419

September 0.7251 3.7578 4.1931 0.7251 0.7251 1.3632 0.8530

October 0.7472 4.2317 4.1931 0.7472 0.7472 1.6310 0.8519

November 0.6161 4.2317 4.4852 0.6161 0.6161 1.1913 0.8353

December 0.7185 4.1435 4.1931 0.7185 0.7185 1.8955 0.8728

Total Manganese WQG max = 0.01102*(hardness)+0.54 unless hardness >259 then = 3.3942.

Total Manganese WQG 30 day average = 0.0044*(hardness)+0.605 unless hardness is >250 then = 2.5850.


Total Phosphorus (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0020 0.0020 0.0020 0.0020

February 0.0020 0.0020 0.0579 0.0020 0.0020 0.0020

March 0.0020 0.0022 0.0020 0.0021 0.0020

April 0.0020 0.0033 0.0020 0.0020 0.0021

May 0.0020 0.0020 0.0020 0.0020 0.0020

June 0.0021 0.0036 0.0021 0.0021 0.0025

July 0.0020 0.0020 0.0020 0.0020 0.0020

August 0.0020 0.0026 0.0020 0.0024 0.0020

September 0.0030 0.0020

October 0.0020 0.0034 0.0020 0.0020 - 0.0020

November 0.0037 0.0050 0.2050 0.0044 0.0054 - 0.0020

December 0.0020 0.0068 0.0022 0.0029 - 0.0027

Mean 0.00 0.00 0.13 0.00 0.00 - 0.00

Minimum 0.00 0.00 0.06 0.00 0.00 0.00 0.00

Maximum 0.00 0.01 0.21 0.00 0.01 0.00 0.00

Median 0.00 0.00 0.13 0.00 0.00 - 0.00

Stdev 0.00 0.00 0.10 0.00 0.00 - 0.00

n 11 12 2 11 12 0 10

DL Range 0.002 0.002 0.002 0.002 0.002 0.002 0.002


Dissolved Phosphorus (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.0020

February 0.0020

March 0.0020

April 0.0020

May 0.0020

June 0.0020

July 0.0020

August 0.0020

September 0.0020

October 0.00370

November 0.0026

December 0.0020

Mean - - - - 0.00 - -

Minimum 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Maximum 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Median - - - - 0.00 - -

Stdev - - - - 0.00 - -

n 0 0 0 0 12 0 0

DL Range 0.002 0.002 0.002 0.002 0.002 0.002 0.002



Total Zinc (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00069 0.26100 0.06740 0.06690 0.05360 0.00437

February 0.00174 0.34900 24.70 0.10700 0.10200 0.06830 0.00533

March 0.00095 0.09470 0.07480 0.07330 0.04730 0.00545

April 0.00230 0.15300 0.08360 0.10800 0.03920 0.00458

May 0.03350 0.08630 0.05650 0.05750 0.05850 0.00502

June 0.00362 0.02880 0.09370 0.08470 0.07430 0.00492

July 0.02190 0.04100 0.16100 0.15700 0.05900 0.00395

August 0.96400 0.24000 0.17700 0.32400 0.06250 0.00431

September 0.00758 0.23400 0.09250 0.06810 0.17000 0.00530

October 0.01280 0.10400 0.08750 0.08750 0.11800 0.00381

November 0.03470 0.27100 19.00 0.02270 0.10700 0.09820 0.00430

December 0.01160 0.33300 0.11200 0.10400 0.18300 0.00593

Mean 0.0913 0.1830 21.85 0.0946 0.1117 0.0860 0.0048

Minimum 0.0007 0.0288 19.00 0.0227 0.0575 0.0392 0.0038

Maximum 0.9640 0.3490 24.70 0.1770 0.3240 0.1830 0.0059

Median 0.0096 0.1935 21.85 0.0900 0.0948 0.0654 0.0048

Stdev 0.2751 0.1120 4.03 0.0422 0.0720 0.0475 0.0007

n 12 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

BC WQG max See tables. 1 0.5 See tables. See tables. 1 See tables.BC WQG 30 day See tables. See tables. See tables. See tables.

Dissolved Zinc (mg/L)

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 0.00462 0.03360 0.06620 0.06400 0.05130 0.00401

February 0.00236 0.02580 23.70 0.10100 0.09580 0.06480 0.00563

March 0.00912 0.02350 0.07300 0.07000 0.04780 0.00490

April 0.00379 0.04750 0.07530 0.07140 0.02670 0.00391

May 0.01860 0.04300 0.05330 0.04960 0.04990 0.00474

June 0.00594 0.00917 0.09130 0.08170 0.07180 0.00471

July 0.05060 0.01940 0.15100 0.13800 0.04290 0.00327

August 0.44700 0.10900 0.15600 0.22800 0.05590 0.00400

September 0.06850 0.07740 0.06780 0.16300 0.00520

October 0.15200 0.04840 0.07940 0.07770 0.11000 0.00336

November 0.02430 0.07930 13.50 0.02010 0.16600 0.09660 0.00403

December 0.02490 0.11500 0.09510 0.08870 0.16600 0.00405

Mean 0.0676 0.0518 18.60 0.0866 0.0999 0.0789 0.0043

Minimum 0.0024 0.0092 13.50 0.0201 0.0496 0.0267 0.0033

Maximum 0.4470 0.1150 23.70 0.1560 0.2280 0.1660 0.0056

Median 0.0186 0.0453 18.60 0.0784 0.0797 0.0604 0.0040

Stdev 0.1330 0.0345 7.21 0.0377 0.0520 0.0460 0.0007

n 11 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

BC WQG n/a 0.5 0.25 n/a n/a 0.5 n/a


MC M-1 012478

4

Myra Ponds E10066

6

Tailings Superna

t E20774

MC TP4 E20680

5

MC M-2 012478

5

Price 13L

E100662


January 0.0075 0.2243 0.1886 0.0075 0.0075 0.0075 0.0075

February 0.0075 0.2393 0.1688 0.0075 0.0075 0.0075 0.0075

March 0.0075 0.2370 0.1886 0.0075 0.0075 0.0075 0.0075

April 0.0075 0.2768 0.1886 0.0075 0.0075 0.0098 0.0075

May 0.0075 0.2558 0.1886 0.0075 0.0075 0.0149 0.0075

June 0.0075 0.2505 0.1886 0.0075 0.0075 0.0203 0.0075

July 0.0075 0.1868 0.1886 0.0075 0.0075 0.0075 0.0075

August 0.0075 0.1650 0.1886 0.0075 0.0075 0.0075 0.0075

September 0.0075 0.1590 0.1886 0.0075 0.0075 0.0075 0.0075

October 0.0075 0.1913 0.1886 0.0075 0.0075 0.0143 0.0075

November 0.0075 0.1913 0.2085 0.0075 0.0075 0.0075 0.0075

December 0.0075 0.1853 0.1886 0.0075 0.0075 0.0323 0.0075

MC M-1 012478

4

Myra Ponds E10066

6

Tailings Superna

t E20774

MC TP4 E20680

5

MC M-2 012478

5

Price 13L

E100662


January 0.0330 0.2498 0.2141 0.0330 0.0330 0.0330 0.0330

February 0.0330 0.2648 0.1943 0.0330 0.0330 0.0330 0.0330

March 0.0330 0.2625 0.2141 0.0330 0.0330 0.0330 0.0330

April 0.0330 0.3023 0.2141 0.0330 0.0330 0.0353 0.0330

May 0.0330 0.2813 0.2141 0.0330 0.0330 0.0404 0.0330

June 0.0330 0.2760 0.2141 0.0330 0.0330 0.0458 0.0330

July 0.0330 0.2123 0.2141 0.0330 0.0330 0.0330 0.0330

August 0.0330 0.1905 0.2141 0.0330 0.0330 0.0330 0.0330

September 0.0330 0.1845 0.2141 0.0330 0.0330 0.0330 0.0330

October 0.0330 0.2168 0.2141 0.0330 0.0330 0.0398 0.0330

November 0.0330 0.2168 0.2340 0.0330 0.0330 0.0330 0.0330

December 0.0330 0.2108 0.2141 0.0330 0.0330 0.0578 0.0330

Total Zinc WQG 30 day = 0.0075 if hardness is <90, if hardness is 90-330 then = (7.5 + 0.75*(hardness - 90))/1000, if hardness is >330 then = 0.1875.

Total Zinc WQG max = .033 if hardness is <90, if hardness is 90-500 then = (33 + 0.75*(hardness - 90))/1000, if hardness is >500 then = 0.3405.

Hardness

MC M-1 0124784

Myra Ponds E100666


MC TP4 E206805

MC M-2 0124785

Price 13L E100662

Gold River Bridge

0130080

January 9.6 379.0 35.8 34.0 59.9 28.4

February 11.1 399.0 305.0 46.9 48.0 71.3 27.6

March 11.8 396.0 46.3 46.8 76.9 25.4

April 12.9 449.0 56.7 59.3 93.0 25.7

May 10.5 421.0 48.9 47.2 99.8 27.2

June 15.2 414.0 110.0 91.3 107.0 28.1

July 16.3 329.0 136.0 142.0 89.1 28.0

August 13.3 300.0 82.3 80.0 82.8 27.4

September 16.8 292.0 65.7 61.2 74.7 28.4

October 18.8 335.0 76.2 78.5 99.0 28.3

November 6.9 335.0 358.0 12.4 13.4 59.1 26.8

December 16.2 327.0 80.1 83.7 123.0 30.2

Mean 13.2808 364.6667 331.5000 66.4417 65.4500 86.3000 27.6250

Minimum 6.9100 292.0000 305.0000 12.4000 13.4000 59.1000 25.4000

Maximum 18.8000 449.0000 358.0000 136.0000 142.0000 123.0000 30.2000

Median 13.1000 357.0000 331.5000 61.2000 60.2500 85.9500 27.8000

Stdev 3.4828 51.3444 37.4767 33.4652 33.0052 19.2321 1.2871

n 12 12 2 12 12 12 12

DL Range 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030 0.0030

Appendix E

Buttle Lake Water Quality

D

A

L O

e

R

M

e

D

V

O

R A

P

R

Ce

n s

r

C

I

A

G

E

T

H

N

e

M

Ce

k L e

E

E

C

R

B

BEHINDE

P V

eu

r

M

F

ly

E

e

a

r

T

RE

h

ho

a

o

h

C

a

r

r

L

V

SI

E

Lake

P

l

R

O

F

N O

O

I

E

e

L A

E

B

w o

t

Arnica

Lake

G E

r

Lake

l

C

r

r

E

U

B

T

ke

t

e

C

e

SM

RM

k

n

e

e

ae

mC

e

c

Pr

L

DG

M

LE

T

E

h

L

A

E

A

r

N

a

r

k

I

i

C

S L

L

o

k L

V

n

k

C

a

w

V AU

p

e

r

P

u

N CR

Lake

l

h

MIT CHELL

L

S

Y

Norm

N

r

U

R

rk

B

ls

a

u

R o

e

U

Lake

ic

C

e

e

O

R

C

t

S

L

w

us

O Y

O

C

r e

Owen

N

Lake

B E

I

d

K

L

R

R

r

i

B N

a M

k

E

O

a

r

eTHELWOOD

U

A

I

MT

McIntyre

O V

C

L

T

C

kF

R

V

g

C

r

i

os

k

I

l

w

i

N

L

L

R

N

I

h

p

e

I S N

P

PP

a

w l

L

e

h

e

h

k

A

Ck

a

e k

C

Marsh

Greig

Lake

o

E

r

c

ee

a

L

L

M

I

u

P

A

C

e

e

L

r

k

e

C

R

a

C

s

k

U

MT

I

h

l

e

e

R

Q

S

S

L

KE

a

G

e k

k

A

H

S

p

h

d

S

A

L

R

i

e

E

V

N D

O

m

e

A e

C

R

a

a

C

R

R

R

A

L

C

L

I k

k

RE

A

F

C

MT

Gem

MT

r ee

k L

I

R

te

r

C

s

t

O

E

K

o w

O

A

e

k

V

C

O

E

M

A

a k

vu

k

K

I

r a

HV

M

n

k

T

E

R M

E

T

A N

I

HAIG-BRO WN

O B

l

l

N

M

a

e

ee

k e

N

r

e

H a

a

P

P

D

S

Lake

Carter

A

P

U

N

L

A

a k e

e

n

Td

r

k

e

e

MT

Mitchell

r

a

y

MARBLE

B

e

R

s

e

c

b

o

C

e

T

T

AK

al

B

L

r

E

i

M

I

I

w

C

o

k

ic

E

C

a

e

a

E

C

B

e

L

k

W

a

s a

e

a

r

t

e

S A

h

a

e

C

h

h

r

N D

H

O

T

r

V E

E

C

a

I

N

S

O

C

E

I

T

a

e

d

Lake

e

C

R

Lake

e

M T

N D

Lake

T

R

E

re

k

N C

UC

N

R

E

T

O

I

d

K

M

H

E

k

L

I B

R

E

E V

L

L e

R

P

S

k

E

G

LF

t

re

MT

R

N

R

THE

I

V C

N

R

K

L

a

F

O

l

k

l

e

I

U p

S

d

d

n

Lake

y

O

L

R

I G

L

A

A

E

U

C

d

e

nn

l

n

e

I D

r

i

e

ar

PEAK

p

M

h

e

b

M

r

k

Ce

k

e

e

R

T

B

T

a

A

R

R

A

IR

Q

NA

d

k

r

k

o

e

F

yl

L

r

e

T

i

a

n

a

C

l

P

E

n

o

k

a

s

k

N

e

Ga

e

M

L

s

E R

e

I

S

o

k

m

t

e

T

V E

MTN

re

I

ALEXANDRA

V N C

V

e

r e

i

N D

R

r

ee

C

U

E

N

VR

G

Lake

E

S

D

I

G

ALBERT EDWARD

Hope

e

r

J

e

o

N

L

C

Y M

s

B

e

T

L

l

V

e

O

I

E

e

i

a

R

A

H

M

U

A K

E T N

C E

T

B

I B

s

r

l

o

C

r

e

p r Tw

w

Lake

a

i

w

C

McNish

M

e

r

I

G

i

E

E

R

L

I

M

L

e d

k

L

a

e

T

eC

k

MYRA

e

c

r

R

C

Lake

Lake

G

o

Marigold

Lake

a

p

al

H

L

l l o

C

e

k

E

T

U S

eL

L

s

P

h

E

N

UE

EI

A

C

e

w

e

e

O

re

e

K

H n

w

C

K

ADRIAN

Hw

U P

N

ee

k

e

s

C

e

U

e

r

e

n

k

N

R

A

a

s

C

O

k

I

MT

aN

m

A

Lake

ee

A

d i

a

n

A

k

h

i n

t

n

k

r

a

R

I

MT

Lake

C

e

m

N

S

e

o uC

r

e

IE R

O T

s

K

e

C

r

O U

U

I S A E

U

R

R

La ke

Hut ton

E

R

E

s

M

R N

C

d

ia

N

k

E

R

MTN

MOYEHA

A

Lak e

E

v

M

G

a

I

i

C

e

Tl

lo

Greenview

n

a

th

y

k

S I

Schjelderup

L D

i

E

VV E

W

F

L D

R

T

G

V

U

M

k

l e w

Tennent

st

ne

er

k

Jim

Lake

T

e

ni

e

Lake g

MEADOWS

Marbl erock

er

MARBLE

il

L

o

ke

e

a

k

r b

c

r

U

U

LE

L

B

V

RV

B

B

g

u

V

d

a

r

l

d

r

R

E

B

k

H

MT

r

T

r

d

k

k

h

i

I

M

t

L k

a g

k

C

V

e

L

r

S

RV

R

Ck

L

E

o

R

A

r

O

I

m

e

rk

PIT

I

l a

e

r

L

k

FRINK

G

C

G

Sunrise

E

hu

k

W d h

e

V

C E R

o

r

u

B

R M

R

N

Lak e

V

R

U

A

D

M

Hut ton

E

L

K

a d

V

r

L

M

T

D

e

I R

c

of

N

HINDE

O R

MOUNT

D

U

C

E

re

d

V

i

A

b

C

s

A

L

A D

o

e

e

r

V

v

a

C

H I P

E R

C

I

l

RV

R

A

R

V

k

I

D

P

B e l l

Ce o

e

C

r

P

Mb

Globe Flower

h

M C B

p

k

e

r e

M

l

k

A K

L

T

TL

t

B

E

L

a k

E

I

o

n

R

L a

r

k

m

re

C

ri

I

UA

e

A

S

B

E

a

K

n

M

S

r

de

k

a

N

Mu

r

e

L

e

e

r r

S

r

e

e

C

R

YE

AUGERPOINT

I

p

ke

o

e

R

Lake

Ck

R

k

n

V

Ce

C

e

O V

S

z

C

k e

E

ee

MT

REGAN

r

Lake

Faith

m

T A

k

e

k

f

C

O

N

M

F

a

k

E

V

A N

R

E

I

e

i

r

e

E

N

K

E

M

e

i a M

Y

H A

Y

V

L

BURMAN

GOLDEN

O M

M T

se

R

U

a

VR

e

L

C

t

Lk

A

e

L

I

U

D

G

W

H

G

s

I

C

S

N

R

R

e

e

T

et

r

Lake

E

e

a

k

n

r

e

M

e

ek

Wheaton

l

r

Li mestone

i

s

T

ku

ID

r

r

B T

E

D

K

k

M o

LL

r

QU

RV E

IS

o l i g

e

e

a

P

W

F

k

rl s

T

e

PHILLIPS

EK

L

e

L

V A

i

L

T

i

un

n

U

P

re

A

n

ee

A

W

k e

A

e n

a e

e

I L N D

e

O

h

U

R

Jack Shark

r

E

PEAK

Pearl

S

O

I

r

C

d

E

H

Deli ght

n

e

Ink

E

r

GEORGE V

RCharity

E

r

k

U

r e

Y

V

e

81 3

ICE FIELD

99 0

11 66

ICE FIELD

88 6

11 21

92192 1

IC E F I E LD

ICE FIELD

ICE FIELD

IC E F I E LD

10 98

Lake

Fa ll s

Fa ll s

14 41

Fa ll s

Fa ll s

ICE FIELD

ICE FIELD

Fa ll s

Ra p id s

Ra p id s

12 17

98 3

ICE FIELD

ICE FIELD

ICE FIELD

Ra pids

91 7

11 41

96 6

ICE FIELD

11 57

10 63

12 31

ICE FIELD

ICE FIELD

ICE FIELD

Fa ll s

13 26

Fa ll s

Fa ll s

Fa ll s

Fa ll s

85 4

Fa ll s

369

14 83

Fa ll s

1206

Ra p id s

91 2

ICE FIELD

10 34

98 9

10 60

99 1

Fa ll s

81 7

IC E F I E LD

11 48

ICE FIELD

13 12

Fa ll s

82 8

96 2

10 04

IC E F I E LD

11 15

ICE FIELD

ICE FIELD

22 3

Fa ll s

Fa ll s

14 83

12 53

11 07

Fa ll s

1156

ICE FIELD

14 27

ICE FIELD

10 08

11 03

10 69

11 26

10 25

12 62

10 68

10 59

43 0

12 61

Fa ll s

Fa ll s

22 3

Fa ll s

ICE FIELD

ICE FIELD

Ra p id s

Fa ll s

Fa ll s

12 71

98 8

ICE FIELD

11 19

1193

ICE FIELD

Fa ll s

ICE FIELD

Ra p id s

10 71

Ra p id s

ICE FIELD

13 67

Fa ll s

22 4

22 3

62 9

Fa ll s

Fa ll s

Fa ll s

Fa ll s

ICE FIELD

11 63

Fa ll s

93 2

747

12 25

71 4

11 78

Fa ll s

22 3

10 22

22 3

But tle

22 3

Fa ll s

14 30

Ra p id s

13 92

Fa ll s

Fa ll s

92 0

Fa ll s

Ra p id s

ICE FIELD

ICE FIELD

1221

1234

ICE FIELD

10 40

10 07

10 58

IC E F I E LD

Fa ll s

Fa ll s

Fa ll s

Ra p id s

13 24

10 58

98 9

11 64

10 13

10 35

11 66

12 09

ICE FIELD

ICE FIELD

IC E F I E LD

Fa ll s

890

ICE FIELD

D AM

66 5

22 3

98 5

Fa ll s

Fa ll s

Fa ll s

67 0

Fa ll s

36 9

Fa ll s

11 25

Fa ll s

15 08

Fa ll s

14 22

1881

1900

2101

21 00

1593

1100

1500

1100

70 0

392

900

1637

15 00

1300

1275

1388

1200

1748

1829

1905

1146

1506

1900

1980

1000

1300

1100

1100

1100

1137

1800

1800

2000

1700

1204

1874

1564

700

265

1100

1200

1500

1400

1300

1300

14 00

13 00

1300

1000

14 00

1524

1559

1100

952

1000

600 30

0

1451

1516

14321531

359

1638

1534

70 0

1467

500

13 00

16 00

1324

1000

700

12 00

1475

900

1569

1597

1757

1461

1500

1300

1100

1700

1100

1582

1200

1900

1619

1197

1887

1300

1438

1300

1000

1100

40 0

1600

1171

1742

1813

1800

1676

1500

1500

40 0

500

900

1100

800

700

14 00

1600

1200

1613

1200

1100

1500

11 00

800

600

1100

1400

1103

700

60 0

400

612

1342

1900

1200

1400

2129

1227

1501

1400

800

377

1460

15 00

913

1000

1700

16 00

14 00

1678

1532

1100

1661

1671

19 00

1600

13 00

1936

1860

1988

1000

1124

1400

900

1400

1300

800

1400

50 0

1400

1300

1300

1200

1400

1300

1700

1400

1658

1500

1700

1743

1505

1500

312

1694

1500

1569

60 0

1126

1500

1500

16 00

1200

1300

1000

900

900

1500

1497

1151

1200

600

500

900

1326

1515

1797

1098

1658

500

40 0

400

500

500

16 00

1700

576

17 00

1700

18 00

1610

600

1515

1453 1458

900

1300

1200

1100

800

1600

1000

13 00

1549

14 00

1621

1828

897

1393

900

1300

1000

1778

1000

1500

1849

1684

1500

1969

1800

1649

1500

900

1700

1724

1100

1200

1000

1500

700

1226

1000

1400

16 00

2000

1745

1500

1900

1845

2069

1685

1600

13 00

1626

300

1000

1200

800

1488

1000

1372

1400

1500

13 00

1000

917

1300

900

242

400

700

674

947

900

903

800

400

1526

1996

1515

1476

1400

1100

18 00

1400

1420

1200

1948

1600

1900

1650

1935

1186

1874

1564

1592

1700

1100

1631

1400

1200

700

1500

1600

359

1500

1918

1900

1814

1887

1700

1884

14 00

900

50 0

10 00

1400

1100

900

800

13 00

1100

1200

1400

1631

1100

1601

13 00

1500

1400

700

400

700

1000 80

0

600

800

1261

60 0

2039

1630

1300

800

1400

996

1300

1200

10 00

400

500

1400

1500

1000

15 0011

00

1737

1682

1879

1603

1387

1455

1600

1554

1500

13 00

1300

1000

1400

1100

1600

1347

1400

1300

1942

16 00

1400

1928

1947

1462

1900

1200

1600

900

16 00

900

1200

800

1200

1346

1500

1300

372

1169

1846

18 00

340

700

1327

90 0

30 0

1300

1200

1000

1300

400

1200

1400

1393

10 00

1500

1733

1700

17 00

1300

15 00

10 00

1200

500

600

800

1400

1100

700 40

0

261

700

400

1011

1400

1900

1600

1531

1500

1455

1200

1300

12 00

11 00

900

14 00

1665

267

1200

1865

1579

1445

1457

1400

1200

800

1218

2011

1839

1865

1700

1849

1800

1948

800

1450

900

1800

368

1235

1810

2100

1879

2166

1733

80 0

15641525

11 00

800

1300

1408

12 00

1631

1200

991

11 00

800

300

1491

1022

1653

400

1300

1272

1500

1447

14 00

90 0

80 0

1000

60 0

368

1600

1638

470

900

1621

1800

2000

1650

2045

1500

1265

1400

1742

16681724

1300

800

1100

12 00

1400

1700

1300

1200

1828

1600

1600

1699

800

70 0

1400

1200

600

1100

1000

900

1000

1300

1477

1515

1300

1400

1428

15 00

1600

1400

15 00

1400

500

1200

1300

1418

1216

900

500

500

500

1554

400

40 0

Myra Creek M2 (0124784)

Myra Creek M1 (0124784)Myra Creek @ TP4 (E206805)Myra Ponds Effluent (E100666)

Buttle Lake @ Karst (0130090)

Buttle Lake @ Henshaw (0130082)

Price Pond (13-L Culvert) (E100662)

Buttle Lake @ Gold River Bridge (0130080)

Tailings Impoundment Supernatant (TMA Decant) (E207740)

0 2,000 4,000 6,000 8,0001,000

Meters

t

P

M

E

E

e

k

Ck

a

C

a

re

MT

y

o

k

C

a

n

e

e

yl

L

e

T

eC

k

MYRA

r

e

re

e

K

st

ne

er

e

d

r

C

r

A

Ea

k

n

e

M

F

k

rl s

ICEFIELD

223

Falls



Myra Creek @ TP4 (E206805)Myra Ponds Effluent (E100666)

Price Pond (13-L Culvert) (E100662)

Tailings Impoundment Supernatant (TMA Decant) (E207740)

hendersons

Text Box

PE-06858 Sampling Site Map (with EMS-ID codes)

hendersons

Typewritten Text

hendersons

Typewritten Text

FIGURE 5-5

Henshaw-0m Henshaw-20m Henshaw-40m Henshaw-60m Karst-0m Karst-20m Karst-40m Karst-60m Karst-80m Karst-100m17/02/2015 0.0173 0.0125 0.0295 0.0308 0.0331 0.0169 0.103 0.0138 0.0631 0.034130/04/2015 0.0136 0.0129 0.0124 0.0267 0.0268 0.00967 0.00881 0.00815 0.00826 0.0117/06/2015 0.00674 0.00778 0.0115 0.0216 0.0271 0.00608 0.00955 0.00862 0.0079 0.0091619/08/2015 0.00649 0.00573 0.0103 0.0182 0.0216 0.00531 0.0106 0.0084 0.00792 0.0081929/10/2015 0.00597 0.00789 0.00836 0.0177 0.0193 0.00544 0.00936 0.0082 0.00845 0.0089416/12/2015 0.0113 0.0129 0.016 0.0197 0.0223 0.0431 0.00685 0.00737 0.00924 0.00786

MAX 0.0173 0.0129 0.0295 0.0308 0.0331 0.0431 0.103 0.0138 0.0631 0.0341MIN 0.00597 0.00573 0.00836 0.0177 0.0193 0.00531 0.00685 0.00737 0.0079 0.00786AVE 0.010233333 0.00995 0.014676667 0.02245 0.025033333 0.014416667 0.024695 0.00909 0.017478333 0.013041667Chronic WQG 0.0075 0.0075 0.0075 0.0075 0.0075 0.0075 0.0075 0.0075 0.0075 0.0075Acute WQG 0.033 0.033 0.033 0.033 0.033 0.033 0.033 0.033 0.033 0.033





Total Zinc with depth

DATEHenshaw Karst

Total Cadmium with depth

DATEHenshaw Karst

Total Copper with depth

DATEHenshaw Karst

BUTTLE LAKE SITES WATER CHEMISTRY - EMS-IDs: 0130090 (Karst Creek) and 0130082 (Henshaw Creek)

Buttle Buttle Buttle Buttle Buttle Buttle Buttle Buttle Buttle ButtleFEBRUARY 17, 2015 Lake Lake Lake Lake Lake Lake Lake Lake Lake Lake

Karst 0m Karst 20m Karst 40m Karst 60m Karst 100m Hen 0m Hen 10m Hen 20m Hen 40m Hen 60mTotal Suspended Solids (TSS) <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0Turbidity (NTU) 0.4 0.2 0.2 0.2 0.2 0.7 0.5 0.5 0.3 0.3Sulphate 3.3 5.6 4.5 4.8 5.0 4.3 3.6 7.9 9.2 9.5Silicate 3.1 3.0 3.0 3.0 3.1 2.2 2.8 2.3 2.6 2.7Total phosphorous 0.003 0.005 0.003 0.003 <0.0020 0.005 0.004 0.003 0.002 <0.0020Total aluminum 0.0500 0.100 0.027 0.072 0.048 0.082 0.056 0.062 0.045 0.040Dissolved aluminum 0.0167 0.015 0.014 0.016 0.015 0.043 0.033 0.038 0.028 0.023Total cadmium 0.000027 0.000037 0.000032 0.000039 0.000041 0.000050 0.000037 0.000091 0.000103 0.000117Dissolved cadmium 0.000028 0.000028 0.000032 0.000038 0.000038 0.000049 0.000038 0.000090 0.000101 0.000110Total calcium 8.53 9.85 10.00 9.93 9.57 7.36 8.43 8.98 10.60 10.60Dissolved calcium 8.50 9.71 9.54 9.65 10.30 7.36 8.84 8.78 10.30 10.60Total copper 0.00243 0.01340 0.00161 0.00807 0.00414 0.00182 0.00126 0.00227 0.00215 0.00238Dissolved copper 0.00110 0.00100 0.00101 0.00132 0.00136 0.00158 0.00119 0.00197 0.00222 0.00207Total iron 0.045 0.027 0.019 0.024 0.025 0.059 0.047 0.059 0.036 0.031Dissolved iron 0.006 0.004 0.005 0.005 0.008 0.014 0.011 0.010 0.009 0.010Total lead 0.000174 0.00068 0.00012 0.00043 0.00021 0.00016 0.00016 0.00096 0.00014 0.00017Dissolved lead 0.000090 0.00039 0.00013 0.00023 0.00018 0.00010 0.00011 0.00012 0.00015 0.00008Total manganese 0.00216 0.0018 0.00186 0.0023 0.00345 0.00577 0.00452 0.00886 0.01030 0.01630Dissolved manganese 0.00121 0.000716 0.000639 0.000873 0.00099 0.004 0.00351 0.00632 0.00696 0.01170Total dissolved phosphorous 0.002 <0.0020 0.0024 <0.0020 <0.0020 <0.0020 0.0033 <0.0020 <0.0020 <0.0020Ammonia nitrogen 0.006 0.011 <0.0050 <0.0050 0.005 <0.0050 <0.0050 0.010 0.006 0.007Nitrate 0.035 0.049 0.050 0.050 0.049 0.026 0.025 0.038 0.043 0.047Nitrite <0.0020 <0.0020 <0.0020 <0.0020 0.0024 <0.0020 0.0033 <0.0020 0.002 0.002Total zinc 0.0169 0.1030 0.0138 0.0631 0.0341 0.0173 0.0125 0.0295 0.0308 0.0331Dissolved zinc 0.0078 0.0089 0.0092 0.0115 0.0127 0.0154 0.0124 0.0270 0.0309 0.0313Chlorophyll A 0.00100 0.00107

BUTTLE LAKE - IN SITU DEPTH PROFILE PARAMETERS

Sampling Station EMS-IDs:0130082 - Buttle Lake at Henshaw Creek 0130090 - Buttle Lake at Karst Creek

Sampling Date: February 17, 2015

General Weather Conditions:Karst: Calm, Clear

Lake Conditions:Calm, Murky

STATION TEMPERATURE CONDUCTIVITYDISSOLVED

OXYGEN pHSECCHI

DISC°C mS/cm mg/L m

Henshaw @ 0m 5.5 0.046 12.19 6.7Henshaw @ 5m 5.4 0.045 12.09 6.7Henshaw @ 10m 5.2 0.049 12.22 6.8Henshaw @ 15m 4.9 0.049 12.16 6.7Henshaw @ 20m 4.8 0.054 11.74 6.8Henshaw @ 25m 4.8 0.058 11.91 6.8Henshaw @ 30m 4.7 0.060 11.49 6.8Henshaw @ 35m 4.6 0.061 11.49 6.9Henshaw @ 40m 4.6 0.064 11.05 6.9Henshaw @ 45m 4.6 0.064 10.92 6.9Henshaw @ 50m 4.6 0.064 10.84 6.9Henshaw 5.5

Karst @ 0m 6.1 0.050 11.75 7.0Karst @ 5m 5.7 0.053 11.58 7.0Karst @ 10m 5.5 0.055 11.40 7.1Karst @ 15m 5.4 0.057 11.15 7.1Karst @ 20m 5.3 0.058 11.15 7.1Karst @ 25m 5.3 0.059 11.02 7.1Karst @ 30m 5.3 0.059 10.99 7.1Karst @ 35m 5.3 0.059 11.02 7.2Karst @ 40m 5.3 0.059 11.04 7.1Karst @ 45m 5.3 0.059 10.90 7.2Karst @ 50m 5.3 0.059 10.80 7.2Karst 5.5

Henshaw: Calm, Dense Fog

Karst - Nyrstar Myra Falls - Buttle Lake Sample date: February 17, 2015Sample Volume: 133 mL

Taxonomic Listing stage organisms/ml total no. org.

Sub-class BranchiopodaFamily DaphnidaeDaphnia rosea adult 0.1 16Family BosminidaeBosmina longirostris 0.05 7

Order CyclopoidaDiacyclops thomasi adult 2.2 293UID copepodid 0.5 69

UID Calanoid/Cyclopoida nauplii 2.4 319

Family HolopediidaeHolopedium gibberum 0.03 5

Phylum PoriferaKeratella quadrata 0.02 3

BenthicChironominae larva 0.01 1

Total 713

Henshaw - Nystar Myra Falls - Buttle Lake Sample date: February 17, 2015Sample Volume: 158ml

Taxonomic Listing stage organisms/ml total no. org.

Sub-class BranchiopodaFamily DaphnidaeDaphnia rosea adult 0.1 13

Family BosminidaeBosmina longirostris 0.1 19

Order CyclopoidaDiacyclops thomasi adult 0.6 97UID copepodid 0.2 24

UID Calanoid/Cyclopoida nauplii 0.3 50

Order : CalanoidaFamily : DiaptomidaeSkiptodiaptomus oregonensis adult 0.01 2

Phylum RotiferaKellicottia longispina 0.01 2Keratella quadrata 0.03 6Trichocerca sp. 0.01 2UID Rotifera 0.03 5

BenthicHydracarina 0.03 6

Total 226

UID = unidentified due to lack of size and/or missing morphological characters

BUTTLE LAKE PHYTOPLANKTON - February 17, 2015Karst27 ml sample settled

BUTTLE LAKE PHYTOPLANKTON - June 25, 201 450TOTAL CELLS PER ML 1,100

1000X magnification - 100 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 50 450Ochromonas/Chromulina spp. (4-5 um) 30 270Ochromonas/Chromulina spp. (6-7 um) 10 90Pseudokephyrion sp. 6 54TOTAL 96 864

400X magnification - 2 stripsCHRYSOPHYCEAEDinobryon sp. 2 2Ochromonas spp. (8-10 um) 141 120BACILLARIOPHYCEAEAchnanthes sp. (small) 1 1Cyclotella glomerata (cells + cols) 4 3Melosira italica (filaments) 1 1Rhizosolenia longiseta 29 25Synedra sp. (small) 2 2CHLOROPHYCEAECosmarium sp. (small) 1 1CRYPTOPHYCEAECryptomonas sp. 5 4Kathablepharis ovalis 2 2Rhodomonas minuta 30 26DINOPHYCEAEGymnodinium sp. 1 1CYANOPHYCEAEDactylococcopsis acicularis 1 1TOTAL 220 187

100X magnification - half sampleCHRYSOPHYCEAEDinobryon sociale (6 cols, 17 cells) 17 1.4BACILLARIOPHYCEAESynedra radians 115 9.2Synedra ulna 1 0.1CHLOROPHYCEAEElakatothrix gelatinosa (cols) 1 0.1TOTAL 134 10.7

BUTTLE LAKE PHYTOPLANKTON - February 17, 2015Henshaw27 ml sample settled

TOTAL CELLS COUNTED 361TOTAL CELLS PER ML 1,100

1000X magnification - 100 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 54 486Ochromonas/Chromulina spp. (4-5 um) 32 288Ochromonas/Chromulina spp. (6-7 um) 10 90Pseudokephyrion sp. 2 18Chrysochromulina parva 2 18TOTAL 100 900

400X magnification - 2 stripsCHRYSOPHYCEAEChrysolikos sp. 1 1Dinobryon sp. 1 1Ochromonas spp. (8-10 um) 156 133BACILLARIOPHYCEAERhizosolenia longiseta 3 3CRYPTOPHYCEAECryptomonas spp. 20 17Kathablepharis ovalis 3 3Rhodomonas minuta 31 26DINOPHYCEAEGymnodinium sp. 5 4TOTAL 220 187

100X magnification - half sampleCHRYSOPHYCEAEDinobryon sociale (2 cols, 9 cells) 9 0.72BACILLARIOPHYCEAESynedra radians 32 2.56TOTAL 41 3.3


Buttle Buttle Buttle Buttle Buttle Buttle Buttle Buttle Buttle ButtleAPRIL 30, 2015 Lake Lake Lake Lake Lake Lake Lake Lake Lake Lake

Karst 0m Karst 20m Karst 40m Karst 60m Karst 100m Hen 0m Hen 10m Hen 20m Hen 40m Hen 60mTotal Suspended Solids (TSS) <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0Turbidity (NTU) 0.1 0.1 0.2 0.3 0.2 0.2 0.2 0.2 0.2 0.3Sulphate 4.4 4.4 4.0 4.3 4.3 6.0 6.1 5.1 8.4 8.5Silicate 3.0 3.0 3.1 3.1 3.0 2.8 2.8 2.9 2.7 2.6Total phosphorous 0.002 <0.0020 <0.0020 <0.0020 0.002 <0.0020 <0.0020 <0.0020 0.003 <0.0020Total aluminum 0.0161 0.015 0.012 0.013 0.014 0.020 0.020 0.016 0.022 0.024Dissolved aluminum 0.0120 0.010 0.009 0.010 0.010 0.015 0.016 0.013 0.019 0.018Total cadmium 0.000033 0.000029 0.000027 0.000032 0.000038 0.000046 0.000047 0.000050 0.000089 0.000094Dissolved cadmium 0.000034 0.000027 0.000028 0.000027 0.000035 0.000040 0.000043 0.000036 0.000086 0.000090Total calcium 9.14 10.20 9.61 9.66 9.86 9.36 9.68 9.76 10.30 9.88Dissolved calcium 9.23 9.80 9.40 9.47 9.61 8.91 9.02 9.58 10.20 9.88Total copper 0.00068 0.00067 0.00063 0.00064 0.00064 0.00081 0.00075 0.00076 0.00137 0.00143Dissolved copper 0.00062 0.00061 0.00059 0.00059 0.00064 0.00071 0.00067 0.00072 0.00115 0.00132Total iron 0.004 0.004 0.004 0.004 0.007 0.006 0.007 0.006 0.008 0.009Dissolved iron 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.004 0.004Total lead 0.000027 0.00005 0.00019 0.00002 0.00002 0.00008 0.00004 0.00002 0.00003 0.00009Dissolved lead <0.0000050 <0.0000050 0.00005 <0.0000050 <0.0000050 <0.0000050 <0.0000050 <0.0000050 <0.0000050 0.00001Total manganese 0.00175 0.00129 0.00111 0.00105 0.00165 0.00330 0.00372 0.00276 0.00862 0.00862Dissolved manganese 0.00016 0.000347 0.000369 0.000375 0.00095 0.000 0.00088 0.00122 0.00600 0.00643Total dissolved phosphorous <0.0020 <0.0020 <0.0020 <0.0020 0.0021 <0.0020 <0.0020 0.0028 <0.0020 0.0023Ammonia nitrogen 0.007 0.006 0.048 0.010 0.015 0.010 0.013 0.012 0.021 0.015Nitrate 0.034 0.042 0.046 0.048 0.050 0.028 0.027 0.037 0.044 0.045Nitrite <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 0.0022 <0.0020 <0.0020 <0.0020Total zinc 0.0097 0.0088 0.0082 0.0083 0.0100 0.0136 0.0129 0.0124 0.0267 0.0268Dissolved zinc 0.0088 0.0089 0.0080 0.0081 0.0092 0.0121 0.0115 0.0117 0.0227 0.0265Chlorophyll A 0.00183 0.00138



Sampling Date: April 30, 2015

General Weather Conditions:Karst: Overcast, light breeze

Lake Conditions:Slighty choppy


OXYGEN pHSECCHI




Henshaw: Mostly cloudy, light breeze

Site NameSite #Sample Dateunits stage

Sub-class : CopepodaOrder : CyclopoidaDiacyclops thomasi adultUID copepodidOrder : CalanoidaSkistodiaptomus oregonensis adultUID Calanoida / Cyclopoida nauplii

Sub-class : BranchiopodaBosmina longirostris adultDaphnia rosea adultHolopedium gibberum adultSida crystallina adult

Phylum : RotiferaKeratella quadrata

Order : DipteraSubfamily : Chironominae larvae

Group : Hydracarina larvae

TOTAL

UID = unidentified due to lack of size and/or missing morphological characters.

2,057 3,826

32 11

7

54 43

97 30020 32

20

27 247

108 364

22732 1,147

958 1,662

Buttle LakeKarst Creek Henshaw Creek

April-30-15total organisms / sample

BUTTLE LAKE PHYTOPLANKTON - April 30, 2015Karst27 ml sample settled

BUTTLE LAKE PHYTOPLANKTON - June 25, 201 692TOTAL CELLS PER ML 1,400

1000X magnification - 50 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 26 468Ochromonas/Chromulina spp. (4-5 um) 14 252Ochromonas/Chromulina spp. (6-7 um) 3 54Chrysochromulina parva 4 72Pseudokephyrion sp. 3 54TOTAL 50 900

400X magnification - 1 stripCHRYSOPHYCEAEChrysolikos sp. 8 14Dinobryon sp. 1 2Mallomonas spp. 1 2Ochromonas spp. (8-10 um) 102 173BACILLARIOPHYCEAEAchnanthes sp. (small) 1 2Cyclotella glomerata (cells + cols) 38 65Melosira italica (filaments) 2 3Rhizosolenia longiseta 81 138CHLOROPHYCEAECosmarium sp. (small) 2 3Scenedesmus sp. 1 2Tetraedron sp. 1 2CRYPTOPHYCEAECryptomonas sp. 6 10Kathablepharis ovalis 3 5Rhodomonas minuta 35 60DINOPHYCEAEGymnodinium sp. 1 2CYANOPHYCEAEDactylococcopsis acicularis 1 2TOTAL 284 483

100X magnification - half sampleCHRYSOPHYCEAEDinobryon sociale (11 cols, 33 cells) 33 2.6Dinobryon bavaricum (15 cols, 63 cells) 63 5.0BACILLARIOPHYCEAESynedra radians 260 20.8Synedra ulna 1 0.1CHLOROPHYCEAEElakatothrix gelatinosa (cols) 1 0.1TOTAL 358 28.6

BUTTLE LAKE PHYTOPLANKTON - April 30, 2015Henshaw27 ml sample settled


1000X magnification - 50 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 35 630Ochromonas/Chromulina spp. (4-5 um) 25 450Ochromonas/Chromulina spp. (6-7 um) 5 90Pseudokephyrion sp. 2 36Chrysochromulina parva 4 72TOTAL 71 1278

400X magnification - stripCHRYSOPHYCEAEChrysolikos sp. 5 9Dinobryon sp. 2 3Ochromonas spp. (8-10 um) 104 177BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 21 36Cyclotella kuetzingiana 1 2Rhizosolenia longiseta 45 77CRYPTOPHYCEAECryptomonas spp. 4 7Kathablepharis ovalis 1 2Rhodomonas minuta 10 17CYANOPHYCEAEDactylococcopsis acicularis (cells + cols) 2 3TOTAL 195 332

100X magnification - half sampleCHRYSOPHYCEAEDinobryon sociale (20 cols, 46 cells) 46 3.7Dinobryon bavaricum (55 cols, 133 cells) 133 10.6BACILLARIOPHYCEAESynedra radians 249 19.9CHLOROPHYCEAEBotryococcus braunii (cols) 1 0.1Elakatothrix gelatinosa (cols) 2 0.2TOTAL 428 34.2


Buttle Buttle Buttle Buttle Buttle Buttle Buttle Buttle Buttle ButtleJUNE 17 , 2015 Lake Lake Lake Lake Lake Lake Lake Lake Lake Lake

Karst 0m Karst 20m Karst 40m Karst 60m Karst 100m Hen 0m Hen 10m Hen 20m Hen 40m Hen 60mTotal Suspended Solids (TSS) <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0Turbidity (NTU) 0.2 0.2 0.1 0.1 0.1 0.1 0.2 0.1 0.2 0.2Sulphate 5.0 4.7 4.5 4.3 4.7 6.4 6.2 5.9 8.2 8.7Silicate 2.8 2.9 3.1 3.1 3.1 2.7 2.7 2.9 2.7 2.7Total phosphorous <0.0020 0.005 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020Total aluminum 0.0172 0.014 0.015 0.013 0.013 0.014 0.015 0.018 0.023 0.026Dissolved aluminum 0.0118 0.012 0.010 0.011 0.011 0.012 0.011 0.015 0.019 0.020Total cadmium 0.000021 0.000030 0.000028 0.000027 0.000032 0.000020 0.000025 0.000039 0.000079 0.000085Dissolved cadmium 0.000017 0.000032 0.000031 0.000030 0.000025 0.000022 0.000022 0.000039 0.000074 0.000082Total calcium 9.91 9.74 9.93 9.72 10.10 10.60 10.60 9.79 10.20 10.50Dissolved calcium 9.75 10.00 9.74 10.30 8.63 10.30 10.80 10.00 9.85 12.60Total copper 0.00053 0.00060 0.00064 0.00061 0.00064 0.00057 0.00050 0.00065 0.00114 0.00144Dissolved copper 0.00043 0.00183 0.00054 0.00056 0.00060 0.00046 0.00040 0.00063 0.00106 0.00117Total iron 0.006 0.004 0.004 0.009 0.005 0.007 0.007 0.006 0.010 0.014Dissolved iron 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.002 0.004 0.005Total lead 0.000043 0.00003 0.00002 0.00001 0.00002 0.00005 0.00002 0.00002 0.00009 0.00004Dissolved lead <0.0000050 <0.0000050 <0.0000050 <0.0000050 <0.0000050 <0.0000050 <0.0000050 <0.0000050 0.00002 0.00001Total manganese 0.00210 0.000946 0.00127 0.00171 0.00351 0.00238 0.00269 0.00226 0.00802 0.01050Dissolved manganese 0.00040 0.000314 0.000311 0.000771 0.00258 0.001 0.00062 0.00097 0.00611 0.00652Total dissolved phosphorous <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020Ammonia nitrogen <0.0050 0.015 0.011 0.009 0.006 0.005 0.007 0.009 <0.0050 0.011Nitrate 0.011 0.032 0.043 0.047 0.055 0.014 0.015 0.033 0.048 0.054Nitrite <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020Total zinc 0.0061 0.0096 0.0086 0.0079 0.0092 0.0067 0.0078 0.0115 0.0216 0.0271Dissolved zinc 0.0054 0.0086 0.0079 0.0074 0.0090 0.0061 0.0070 0.0107 0.0204 0.0229Chlorophyll A <0.00050 <0.00050



Sampling Date: June 17, 2015

General Weather Conditions:Karst: Mostly cloudy, light breeze

Lake Conditions:Calm


OXYGEN pHSECCHI




Henshaw: Mostly cloudy, calm


Sub-class : CopepodaOrder : CyclopoidaDiacyclops thomasi adultUID copepodidOrder : CalanoidaSkistodiaptomus oregonensis adultUID copepodidUID Calanoida / Cyclopoida nauplii

Sub-class : BranchiopodaBosmina longirostris adultDaphnia rosea adultDaphnia sp. juvenileHolopedium gibberum adultLeptodora kindtii adultPolyphemus pediculus adultScapheloberis rammneri adult

Phylum : RotiferaKellicottia longispinaKeratella quadrataUID


TOTAL


26 23

3,897 4,370

120 22717 119

1123

9

301 250800 953

1143 91

1,101 1,476

748 545

17 689 23

697 658


June-17-15total organisms / sample

BUTTLE LAKE PHYTOPLANKTON - June 17, 2015Karst27 ml sample settled

BUTTLE LAKE PHYTOPLANKTON 319TOTAL CELLS PER ML 700

1000X magnification - 100 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 26 234Ochromonas/Chromulina spp. (4-5 um) 24 216Ochromonas/Chromulina spp. (6-7 um) 6 54TOTAL 56 504

400X magnification - 2 stripsCHRYSOPHYCEAEDiceras chodatii 3 3Dinobryon sp. 18 15Ochromonas spp. (8-10 um) 101 86BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 15 13Melosira italica (filaments) 11 9Rhizosolenia longiseta 5 4CHLOROPHYCEAECosmarium sp. (small) 4 3Gloeocystis sp. (cols) 1 1Oocystis sp. (cells + cols) 3 3Scenedesmus sp. 3 3Tetraedron sp. 2 2CRYPTOPHYCEAECryptomonas sp. 27 23Rhodomonas minuta 8 7DINOPHYCEAEGymnodinium sp. 3 3CYANOPHYCEAEDactylococcopsis acicularis 12 10TOTAL 216 184

100X magnification - half sampleCHRYSOPHYCEAEDinobryon bavaricum (8 cols, 38 cells) 38 3.0BACILLARIOPHYCEAESynedra radians 3 0.2CHLOROPHYCEAENephrocytium sp. (cols) 2 0.2UNIDENTIFIED FLAGELLATE 4 0.3TOTAL 47 3.8

BUTTLE LAKE PHYTOPLANKTON - June 17, 2015Henshaw27 ml sample settled


1000X magnification - 50 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 19 342Ochromonas/Chromulina spp. (4-5 um) 22 396Ochromonas/Chromulina spp. (6-7 um) 5 90Chrysochromulina parva 3 54TOTAL 49 882

400X magnification - 2 stripsCHRYSOPHYCEAEDiceras chodatii 7 6Dinobryon sp. 16 14Ochromonas spp. (8-10 um) 106 90BACILLARIOPHYCEAEAchnanthes sp. 2 2Cyclotella glomerata (cells + cols) 10 9Melosira italica (filaments) 18 15Rhizosolenia longiseta 12 10Synedra sp. (small) 1 1CHLOROPHYCEAEBotryococcus sp. (cells) 3 3Cosmarium sp. 7 6Crucigenia sp. (cols) 1 1Gloeocystis sp. (cols) 1 1Oocystis sp. (cells + cols) 4 3Scenedesmus sp. (cols) 5 4CRYPTOPHYCEAECryptomonas spp. 32 27Rhodomonas minuta 6 5DINOPHYCEAEGymnodinium sp. 6 5Peridinium sp. 1 1CYANOPHYCEAEDactylococcopsis acicularis (cells + cols) 6 5TOTAL 244 207

100X magnification - half sampleCHRYSOPHYCEAEDinobryon bavaricum (37 cols, 142 cells) 142 11.4BACILLARIOPHYCEAESynedra radians 17 1.4Synedra ulna 1CHLOROPHYCEAENephrocytium sp. (cols) 5 0.4UNIDENTIFIED FLAGELLATE 2 0.2TOTAL 167 13.3

BUTTLE LAKE SITES WATER CHEMISTRY - EMS-IDs: 0130090 (Karst Creek) and 0130082 (Henshaw Creek)August 19, 2015

Sample ID BL-KARS-0 BL-KARS-20 BL-KARS-40 BL-KARS-60 BL-KARS-100 BL-HEN-0 BL-HEN-10 BL-HEN-20 BL-HEN-40 BL-HEN-60Date Sampled 19/08/2015 19/08/2015 19/08/2015 19/08/2015 19/08/2015 19/08/2015 19/08/2015 19/08/2015 19/08/2015 19/08/2015 Silica SILICATE 2.71 2.72 2.86 2.99 2.91 2.67 2.62 2.67 2.59 2.52

Calculated ParametersDissolved Hardness (CaCO3) HARD-D 29.6 28.5 28.7 29.2 28.7 30.9 31.4 29.1 30.6 30.1Total Hardness (CaCO3) HARD 28.4 28.5 27.5 26.6 27 29.1 29.5 28.4 26.8 28.8

CONVENTIONALSTotal Ammonia (N) NH3 <0.0050 0.0074 <0.0050 <0.0050 <0.0050 <0.0050 0.0071 <0.0050 <0.0050 <0.0050Conductivity uS/cm 64.1 62.9 61.1 61.3 61.7 67.9 68.1 64.1 67.8 68.7Nitrate plus Nitrite (N) NO2NO3 <0.0020 0.0269 0.0377 0.0353 0.0376 <0.0020 <0.0020 0.0228 0.0357 0.0374Nitrite (N) NO2 0.0021 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020Nitrate (N) NO3 <0.0020 0.0269 0.0377 0.0353 0.0376 <0.0020 <0.0020 0.0228 0.0357 0.0374Total Suspended Solids TSS <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0Turbidity TURB 0.17 0.12 0.13 0.13 0.12 0.13 0.16 0.12 0.12 0.16

Dissolved MetalsDissolved Aluminum (Al) AL-D 0.0101 0.00947 0.00933 0.0122 0.0104 0.0109 0.011 0.00937 0.0142 0.0148Dissolved Cadmium (Cd) CD-D 0.000016 0.000029 0.000025 0.000024 0.00003 0.000016 0.000016 0.000034 0.000065 0.000069Dissolved Copper (Cu) CU-D 0.000439 0.000538 0.00055 0.000572 0.000616 0.000462 0.000446 0.000558 0.000918 0.00108Dissolved Iron (Fe) FE-D 0.0011 0.0013 0.0013 0.0015 0.0021 0.0016 0.0019 0.0015 0.0036 0.0046Dissolved Lead (Pb) PB-D <0.0000050 0.000008 0.000006 0.000006 <0.0000050 0.000009 <0.0000050 <0.0000050 <0.0000050 <0.0000050Dissolved Manganese (Mn) MN-D <0.000050 0.000174 0.00027 0.00043 0.00215 <0.000050 <0.000050 0.000178 0.00557 0.0127Dissolved Zinc (Zn) ZN-D 0.00415 0.0102 0.00789 0.00775 0.00646 0.0047 0.00442 0.00988 0.018 0.0215Dissolved Calcium (Ca) CA-D 10.3 9.98 10 10.2 10.1 10.8 11 10.2 10.8 10.6Dissolved Phosphorus (P) PHUS-D 0.0021 <0.0020 0.0025 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020

Misc. InorganicspH 7.64 7.71 7.64 7.71 7.71 7.78 7.75 7.72 7.66 7.64Dissolved Sulphate (SO4) SO4-D 4.98 4.95 4.99 5 4.37 5.33 5.69 5.53 7.63 8.37

ParameterChlorophyll a 0.00139 - - - - <0.00050 - - - -

PreparationFilter and HNO3 Preservation LAB LAB LAB LAB LAB LAB LAB LAB LAB LAB

Total MetalsTotal Aluminum (Al) AL-T 0.0126 0.0103 0.0107 0.0113 0.0105 0.0128 0.0116 0.01 0.0164 0.0163Total Cadmium (Cd) CD-T 0.000016 0.000029 0.000026 0.000027 0.000026 0.000019 0.000015 0.000035 0.000064 0.000069Total Copper (Cu) CU-T 0.000636 0.000675 0.00059 0.000646 0.000736 0.000755 0.000552 0.000577 0.000946 0.00133Total Iron (Fe) FE-T 0.008 0.0042 0.0043 0.0041 0.0049 0.0124 0.0063 0.0049 0.0094 0.0111Total Lead (Pb) PB-T 0.000046 0.00007 0.000049 0.000054 0.000016 0.000163 0.00004 0.000026 0.000033 0.000057Total Manganese (Mn) MN-T 0.000919 0.00119 0.00107 0.00129 0.00315 0.00114 0.000849 0.00144 0.00844 0.0148Total Zinc (Zn) ZN-T 0.00531 0.0106 0.0084 0.00792 0.00819 0.00649 0.00573 0.0103 0.0182 0.0216Total Calcium (Ca) CA-T 9.93 10.1 9.64 9.25 9.58 10.2 10.4 10 9.43 10.2Total Phosphorus (P) PHUS-T <0.0020 0.002 0.0026 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020



Sampling Date: August 19, 2015

General Weather Conditions:Clear and calm



OXYGEN pHSECCHI





Sub-class : CopepodaOrder : CyclopoidaDiacyclops thomasi adultUID copepodidOrder : CalanoidaSkistodiaptomus oregonensis adultUID copepodidUID Calanoida / Cyclopoida nauplii

Sub-class : BranchiopodaBosmina longirostris adultDaphnia rosea adultDaphnia sp. juvenileSida crystallina adult

Phylum : RotiferaCocochilus sp. colonyKellicottia longispinaKeratella cochlearisUID


TOTAL


8 9

3,101 2,846

3475 256

934

833 43

176 196401 554

9502 358

1,279 1,125552 187

67 32

total organisms / sample


August 19, 2015

BUTTLE LAKE PHYTOPLANKTON - August, 2015Henshaw27 ml sample settled

TOTAL CELLS COUNTED 266TOTAL CELLS PER ML 970

1000X magnification - 50 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 16 288Ochromonas/Chromulina spp. (4-5 um) 12 216Ochromonas/Chromulina spp. (6-7 um) 6 108Chrysochromulina parva 3 54Pseduokephyrion sp. 3 54CHLOROPHYCEAEOocystis sp. (5X3 um) 5 90TOTAL 45 810

400X magnification - 2 stripsCHRYSOPHYCEAEDiceras chodatii 2 2Ochromonas spp. (8-10 um) 90 77BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 11 9Melosira italica (filaments) 5 4Rhizosolenia longiseta 60 51CHLOROPHYCEAECosmarium sp. 1 1Gloeocystis sp. (cols) 1 1Oocystis sp. (cells + cols) 2 2Scenedesmus sp. (cols) 3 3CRYPTOPHYCEAECryptomonas spp. 14 12Rhodomonas minuta 1 1DINOPHYCEAEGymnodinium sp. 0Peridinium sp. 1 1CYANOPHYCEAEDactylococcopsis acicularis (cells + cols) 2 2TOTAL 193 164

100X magnification - whole sampleCHRYSOPHYCEAEDinobryon bavaricum (2 cols, 12 cells) 12 0.5BACILLARIOPHYCEAESynedra radians 2 0.1CHLOROPHYCEAEBotryococcus braunii (cols) 2 0.1CYANOPHYCEAEAphanothece sp. (cols) 6 0.2Chroococcus sp. (cols) 6 0.2TOTAL 28 1.1

BUTTLE LAKE PHYTOPLANKTON - August 19, 2015Karst27 ml sample settled


1000X magnification - 100 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 19 171Ochromonas/Chromulina spp. (4-5 um) 13 117Ochromonas/Chromulina spp. (6-7 um) 7 63Chrysochromulina parva 2 18CHLOROPHYCEAEOocystis sp. (5 x 3 um) 8 72TOTAL 49 441

400X magnification - 2 stripsCHRYSOPHYCEAEDinobryon sp. Cyst 1 1Ochromonas spp. (8-10 um) 102 87BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 27 23Cyclotella ocellata/stelligera 1 1Melosira italica (filaments) 9 8Rhizosolenia longiseta 47 40CHLOROPHYCEAECosmarium sp. (small) 1 1Gloeocystis sp. (cols) 6 5Oocystis sp. (cells + cols) 3 3CRYPTOPHYCEAECryptomonas spp. 10 9Rhodomonas minuta 10 9DINOPHYCEAEGymnodinium sp. 1 1Peridinium sp. 1 1CYANOPHYCEAEDactylococcopsis acicularis 4 3TOTAL 223 190

100X magnification - whole sampleCHRYSOPHYCEAEDinobryon bavaricum (2 col, 8 cells) 8 0.3CYANOPHYCEAEAphanothece sp. (cols) 4 0.2Chroococcus sp. (cols) 6 0.2TOTAL 18 0.7


Sample ID/Depth BL-KARS-0 BL-KARS-20 BL-KARS-40 BL-KARS-60 BL-KARS-100 BL-HEN-0 BL-HEN-10 BL-HEN-20 BL-HEN-40 BL-HEN-60Date Sampled 29/10/2015 29/10/2015 29/10/2015 29/10/2015 29/10/2015 29/10/2015 29/10/2015 29/10/2015 29/10/2015 29/10/2015

CONVENTIONALSNitrate (N) NO3 0.0185 0.037 0.0521 0.0545 0.0555 0.0135 0.0182 0.0376 0.0536 0.0546Nitrite (N) NO2 0.003 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020Total Ammo NH3 <0.0050 0.0069 0.0073 <0.0050 0.0061 <0.0050 0.0066 0.0059 0.0071 <0.0050Total Suspe TSS <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0True Colour - - - - 6.8 5.9 7.2 - - 9.5Turbidity TURB 0.19 0.19 0.4 0.13 0.14 0.19 0.45 0.29 0.44 0.19

Dissolved MetalsDissolved A AL-D 0.0138 0.0114 0.0101 0.00987 0.00912 0.0145 0.0153 0.0177 0.0122 0.0113Dissolved C CD-D 0.000018 0.000024 0.000029 0.000027 0.000033 0.00002 0.000024 0.000023 0.000058 0.000064Dissolved C CA-D 9.6 9.67 9.49 9.49 10 9.93 10.3 9.47 10.5 10.2Dissolved C CU-D 0.000599 0.000623 0.000601 0.000621 0.000661 0.00125 0.000627 0.000743 0.000973 0.00106Dissolved I FE-D 0.0026 0.002 0.0026 0.0021 0.0024 0.0031 0.0036 0.0043 0.0044 0.0062Dissolved L PB-D <0.0000050 0.000012 0.000012 <0.0000050 0.000005 <0.0000050 0.000008 0.000013 0.00001 <0.0000050Dissolved M MN-D 0.000371 0.000276 0.000346 0.000897 0.00202 0.000533 0.000929 0.000787 0.00482 0.0121Dissolved P PHUS-D <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 0.0055 <0.0020 <0.0020 0.0041Dissolved Z ZN-D 0.00479 0.00919 0.00786 0.00789 0.00848 0.00527 0.0074 0.00805 0.0175 0.0176

Total MetalsTotal Alumi AL-T 0.0172 0.016 0.0126 0.0126 0.0122 0.0181 0.0175 0.0269 0.015 0.0159Total Cadm CD-T 0.000019 0.000023 0.000025 0.000027 0.000026 0.000019 0.000025 0.000024 0.000059 0.000063Total Calciu CA-T 9.79 9.89 10.6 9.29 9.55 10.1 10.2 9.44 10.2 10.2Total Coppe CU-T 0.000853 0.000615 0.000694 0.000662 0.000724 0.000894 0.000629 0.000823 0.000991 0.00105Total Iron (FFE-T 0.0063 0.0061 0.0046 0.0051 0.0062 0.0075 0.0093 0.0126 0.013 0.0169Total Lead PB-T 0.00002 0.000054 0.000037 0.000034 0.000039 0.000031 0.000028 0.000035 0.000138 0.000029Total Mang MN-T 0.000885 0.000787 0.00108 0.00201 0.00386 0.00132 0.00186 0.00219 0.0102 0.0177Total Phosp PHUS-T <0.0020 0.0045 <0.0020 0.0021 <0.0020 <0.0020 <0.0020 0.005 <0.0020 <0.0020Total Zinc ( ZN-T 0.00544 0.00936 0.0082 0.00845 0.00894 0.00597 0.00789 0.00836 0.0177 0.0193

ParameterSilica SILICATE 2.84 2.97 3.11 3.1 3.15 2.82 2.92 2.81 2.88 2.91Chlorophyll a 0.00072 - - - - 0.00091 - - - -



Sampling Date: October 29, 2015

General Weather Conditions:Calm



OXYGEN pHSECCHI




Site NameSite #Sample Date

FES Sample NumberSite NameSite #Sample Dateunits stage

Sub-class : CopepodaOrder : CyclopoidaDiacyclops thomasi adultUID copepodidOrder : CalanoidaSkistodiaptomus oregonensis adultUID Calanoida / Cyclopoida nauplii

Sub-class : BranchiopodaBosmina longirostris adultDaphnia rosea adultPolyphemus pediculus adult

Phylum : RotiferaCocochilus sp. colonyKellicottia longispinaKeratella cochlearisUID

TOTAL


2121

3,760 2,662

21 73211 414

190 321623 46611 10

486 466

1,753 746391 124

53 21

total organisms / sample

150243 150244Buttle Lake

Karst Creek Henshaw CreekOctober 28, 2011


October-29-15

BUTTLE LAKE PHYTOPLANKTON - October 29, 2015

BUTTLE LAKE PHYTOPLANKTON - October 29, 2015Henshaw27 ml sample settled


1000X magnification - 100 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 20 180Ochromonas/Chromulina spp. (4-5 um) 26 234Ochromonas/Chromulina spp. (6-7 um) 6 54Chrysochromulina parva 10 90Pseduokephyrion sp. 1 9TOTAL 63 567

400X magnification - 3 stripsCHRYSOPHYCEAEChrysocapsa paludosa (cols) 1 1Diceras chodatii 1 1Dinobryon sp. (cells) 5 3Mallomonas spp. 2 1Ochromonas spp. (8-10 um) 120 68BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 16 9Cymbella sp. (30 um) 1 1Melosira italica (filaments) 6 3Rhizosolenia longiseta 2 1Synedra sp. (small) 1 1CHLOROPHYCEAEGloeocystis sp. (cols) 1 1Oocystis sp. (cells + cols) 3 2Scenedesmus sp. (cols) 3 2CRYPTOPHYCEAECryptomonas spp. 25 14Rhodomonas minuta 23 13DINOPHYCEAEGymnodinium sp. 4 2CYANOPHYCEAEChroococcus sp. (cols) 2 1Dactylococcopsis acicularis (cells + cols) 2 1TOTAL 217 123

100X magnification - whole sampleCHRYSOPHYCEAEDinobryon cylinidricum (3 cols, 30 cells) 30 1.2BACILLARIOPHYCEAEAsterionella formosa (6 cols, 60 cells) 60 2.4CHLOROPHYCEAECosmarium sp. (large) 1 0.04Elekatothrix gelatinosa (cols) 1 0.04CYANOPHYCEAEAphanothece sp. (cols) 1 0.04TOTAL 93 3.7

BUTTLE LAKE PHYTOPLANKTON - October 29, 2015

Karst27 ml sample settled

BUTTLE LAKE PHYTOPLANKTON - J 348TOTAL CELLS PER ML 610

1000X magnification - 100 fields number counted cells per mlCHRYSOPHYCEAEOchromonas/Chromulina spp. (2-3 um) 24 216Ochromonas/Chromulina spp. (4-5 um) 20 180Ochromonas/Chromulina spp. (6-7 um) 2 18Chrysochromulina parva 7 63Pseudokephyrion sp. 1 9TOTAL 54 486

400X magnification - 3 stripsCHRYSOPHYCEAEChrysocapsa paludosa (cols) 1 1Dinobryon sp. (cells) 2 1Dinobryon sp. Cyst 1 1Ochromonas spp. (8-10 um) 122 69BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 8 5Melosira italica (filaments) 11 6Rhizosolenia longiseta 2 1CHLOROPHYCEAECosmarium sp. (small) 1 1Gloeocystis sp. (cols) 1 1Oocystis sp. (cells + cols) 3 2Scenedesmus sp. (cols) 2 1CRYPTOPHYCEAECryptomonas spp. 25 14Rhodomonas minuta 23 13DINOPHYCEAEGymnodinium sp. 2 1Peridinium sp. 1 1CYANOPHYCEAEDactylococcopsis acicularis 2 1TOTAL 207 117

100X magnification - whole sampleCHRYSOPHYCEAEDinobryon bavaricum (2 col, 18 cells) 18 0.7Dinobryon cylindricum (4 cols, 15 cells) 15 0.6BACILLARIOPHYCEAEAsterionella formosa (5 cols, 48 cells) 48 1.9CHLOROPHYCEAECosmarium sp. (large) 1 0.04Botryococcus braunii (cols) 1 0.04DINOPHYCEAECeratium hirudinella 2 0.1Gymnodinium helveticum 1 0.04Peridinium cinctum 1 0.04TOTAL 87 3.5


Sample ID BL-KARS-0 BL-KARS-20 BL-KARS-40 BL-KARS-60 BL-KARS-100 BL-HEN-0 BL-HEN-10 BL-HEN-20 BL-HEN-40 BL-HEN-60Date Sampled 16/12/2015 16/12/2015 16/12/2015 16/12/2015 16/12/2015 16/12/2015 16/12/2015 16/12/2015 16/12/2015 16/12/2015

Total Metals Total Alumi mg/L 0.0234 0.0263 0.022 0.0263 0.0132 0.0421 0.0421 0.0476 0.0486 0.0575Total Cadm mg/L 0.000033 0.00002 0.000022 0.000032 0.000023 0.000043 0.000046 0.000053 0.000063 0.000067Total Calciu mg/L 10 9.86 10.1 9.9 9.57 9.66 9.65 9.48 9.61 10.1Total Coppe mg/L 0.00164 0.00142 0.00074 0.000862 0.000724 0.00122 0.00114 0.00143 0.00193 0.00226Total Iron (Fmg/L 0.0199 0.0161 0.018 0.0231 0.0136 0.032 0.0341 0.0346 0.0434 0.0429Total Lead mg/L 0.000268 0.000037 0.000027 0.000112 0.000019 0.000048 0.000061 0.000093 0.000105 0.000118Total Mang mg/L 0.00245 0.00189 0.00212 0.0034 0.00299 0.00508 0.00556 0.00564 0.00645 0.00722Total Zinc ( mg/L 0.0431 0.00685 0.00737 0.00924 0.00786 0.0113 0.0129 0.016 0.0197 0.0223

Dissolved MetalsDissolved A mg/L 0.026 0.0276 0.0157 0.018 0.00954 0.0222 0.0239 0.0291 0.0274 0.0283Dissolved C mg/L 0.000032 0.000019 0.000022 0.000026 0.000022 0.000039 0.000042 0.000047 0.000065 0.000068Dissolved C mg/L 9.83 9.86 10.9 9.49 9.52 9.5 9.11 9.6 9.72 9.9Dissolved C mg/L 0.00154 0.000614 0.000568 0.000669 0.000605 0.000903 0.000913 0.00129 0.00118 0.0013Dissolved I mg/L 0.006 0.0041 0.0039 0.0049 0.0031 0.0069 0.0073 0.0082 0.0081 0.0098Dissolved L mg/L 0.000134 0.000015 0.000006 0.000034 0.000005 0.000009 0.000013 0.000022 0.000017 0.000015Dissolved M mg/L 0.00145 0.00103 0.0011 0.00183 0.000787 0.00361 0.00341 0.00387 0.00442 0.00533Dissolved Z mg/L 0.0369 0.00681 0.00693 0.00838 0.00727 0.0113 0.0116 0.0155 0.0182 0.021

Calculated ParametersDissolved H mg/L 28 28.1 30.4 26.9 27.2 27 25.7 27.2 27.3 27.8Total Hardn mg/L 28.6 28 28.6 28.1 27.3 27.1 27.2 26.8 27.1 28.3

NutrientsNitrate (N) mg/L 0.0471 0.0411 0.0464 0.0419 0.0597 0.0415 0.0387 0.0373 0.0356 0.0358Nitrite (N) mg/L <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020 <0.0020Total Ammo mg/L 0.0261 <0.0050 <0.0050 <0.0050 0.0139 <0.0050 0.0095 <0.0050 0.01 <0.0050Total Phosp mg/L 0.0063 0.0023 0.0028 0.0025 0.0025 0.0034 0.0028 0.0031 0.0033 0.0029Dissolved P mg/L 0.0047 0.0022 0.0073 0.0022 0.0024 0.0027 0.0025 0.0026 0.0032 0.0031

Physical PropertiesTotal Suspe mg/L <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0 <4.0Turbidity NTU 0.27 0.18 0.56 0.26 0.13 0.46 0.43 0.42 0.78 0.54

Misc. InorganicsDissolved S mg/L 4.32 4.2 4.21 4.49 4.5 5.42 5.53 5.53 6.23 6.93pH 7.65 7.69 7.67 7.67 7.69 7.68 7.65 7.65 7.65 7.66

ParameterChlorophyll a <0.00050 - - - - <0.00050 - - - -Silica mg/L 3.07 3.11 3.06 3 3.11 2.85 2.77 2.76 2.69 2.73



Sampling Date: October 29, 2015

General Weather Conditions:Calm



OXYGEN pHSECCHI




Site NameSite #Sample Date

FES Sample Number 150277 150278Site Name Buttle LakeSite # Karst Creek Henshaw CreekSample Dateunits stage

Sub-class : CopepodaOrder : CyclopoidaDiacyclops thomasi adult 313 183UID copepodid 17 17Order : CalanoidaSkistodiaptomus oregonensis adult 13UID Calanoida / Cyclopoida nauplii 50 38

Sub-class : BranchiopodaBosmina longirostris adult 21 21Daphnia rosea adult 29 146

Phylum : RotiferaKellicottia longispina 17 8Keratella cochlearis 13 6Keratella quadrata 12

TOTAL 472 432



total organisms / sampleDecember 16, 2015


October-29-15

BUTTLE LAKE PHYTOPLANKTON - December 16, 2015

Henshaw27 ml sample settled



400X magnification - 4 stripsCHRYSOPHYCEAEDinobryon sp. (cells) 2 1Ochromonas spp. (8-10 um) 72 31BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 4 2Melosira italica (filaments) 4 2Rhizosolenia longiseta 2 1CRYPTOPHYCEAECryptomonas spp. 8 3Rhodomonas minuta 34 14CYANOPHYCEAEDactylococcopsis acicularis (cols) 1 0TOTAL 127 54

100X magnification - whole sampleBACILLARIOPHYCEAEAsterionella formosa (23 cols, 128 cells) 128 5Synedra radians 17 1CHLOROPHYCEAEBotryococcus braunii (cols) 1 0Cosmarium sp. 2 0UNIDENTIFIED FLAGELLATE 1 0TOTAL 149 6

BUTTLE LAKE PHYTOPLANKTON - December 16, 2015

Karst27 ml sample settled

BUTTLE LAKE PHYTOPLANKTON - J 403TOTAL CELLS PER ML 340


400X magnification - 4 stripsCHRYSOPHYCEAEChrysolikos sp. 1 0.4Dinobryon sp. (cells) 2 1Ochromonas spp. (8-10 um) 91 39BACILLARIOPHYCEAECyclotella glomerata (cells + cols) 3 1Melosira italica (filaments) 13 6Rhizosolenia longiseta 16 7CHLOROPHYCEAEOocystis sp. (cells + cols) 1 0Scenedesmus sp. (cols) 1 0CRYPTOPHYCEAECryptomonas spp. 20 9Rhodomonas minuta 38 16DINOPHYCEAEPeridinium sp. 2 1CYANOPHYCEAEDactylococcopsis acicularis (cols) 4 2TOTAL 192 82

100X magnification - whole sampleBACILLARIOPHYCEAEAsterionella formosa (28 cols, 135 cells) 135 5Synedra radians 45 2CHLOROPHYCEAEBotryococcus braunii (cols) 1 0.04Elakatothrix gelatinosa (cols) 2 0.1TOTAL 183 7.3

Appendix F

Annual Status Form

Date post:	09-Jun-2020
Category:	Documents
Upload:	others
View:	1 times
Download:	0 times

Nyrstar Myra Falls Mine Annual Water Quality Report 2015€¦ · 21/3/2016 · ANNUAL WATER...

Documents