APPENDIX D WATER QUALITY DATA

Transcription

1 APPENDIX D WATER QUALITY DATA

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3 Mr. John Keating August 9, 2002 Page 2/8 SW-4 and at the settling pond near the bulk extraction area. In addition, total and faecal coliform bacteria samples are collected at three surface water stations (SW-1, SW-2 and SW-3) on a monthly basis. Surface water stations SW-5 and SW-6 are to be sampled for general chemistry, metals plus mercury and total suspended solids on quarterly basis (April, July and October), while station SW- 10 will be sampled twice (spring and late summer) during the 2002 monitoring program. The limited sampling at SW-10 reflects the remote nature of this station, the effort required to access it and its distance from the proposed operational areas. Surface water stations SW-8 and SW-9 have been dropped from the 2002 monitoring program due to the fact that they are located a significant distance from the site and are in a different watershed. Station SW-7 has also been dropped, due to the fact that it has been observed to be dry for most of the previous monitoring events. The locations of the surface water stations are described in Table 1, below. The current surface water station locations are shown in Figure 2-2, attached (Figure provided by Dillon Consulting). Surface water samples were collected directly into new laboratory supplied bottles by dipping the bottles below the surface of the water. All samples were collected from a location within the stream where the water was fast flowing. The disturbance of bottom sediments was avoided during sample collection. The samples were collected in as short of time possible to ensure that the samples collected are representative and comparable for data interpretation purposes. The samples are preserved as required (metal samples are field acidified) and stored at 4 C during shipment to the laboratory. The samples are sent to Philip Analytical Services Laboratories in Bedford, Nova Scotia for analysis. TABLE 1: SURFACE WATER MONITORING STATION PHYSICAL DESCRIPTIONS SITE NO. DESCRIPTION SW-1 On Clyde River north edge of claim block. SW-2 On Clyde River downstream of claim block. SW-3 On East Barclay Brook upstream of proposed extraction areas. SW-4 On East Barclay Brook downstream of proposed extraction areas. SW-5 On the Barclay Brook upstream of proposed extraction areas. SW-6 On the Barclay Brook downstream of proposed extraction areas. SW-7 Not used due to dry conditions. SW-8 At outflow from Upper Frog Pond. SW-9 At inflow to Lower Frog Pond. SW-10 At confluence of East Barclay and Barclay Brooks PIT POND Settling pond near the bulk sample extraction area, east side of Highway #203.

4 Mr. John Keating August 9, 2002 Page 3/8 For the period up to, and including, July 2002, stream discharge has not been measured at any of the monitoring stations as part of the surface water monitoring program. Discharge measurements are planned to coincide with the August 2002 sampling event and will be carried out periodically thereafter. This will occur on a quarterly basis or anytime extreme low or high flow events are observed, unless safety concerns are such that discharge measurements are not possible. With respect to groundwater, a total of 4 monitor wells (MW-01-40, MW-01-41, MW and MW-99-20) are sampled for general chemistry and metals on a monthly basis. The monitor well locations are shown in Figure 1-1, attached. Prior to the collection of groundwater samples at each monitoring well, the following procedures are conducted: C C C C all sampling equipment, water level tape, etc. are decontaminated and rinsed with distilled water before use; each well is inspected to determine whether it is in a state of good repair. Any deficiencies would be noted for follow-up action; the depth to water is measured from a consistent datum in order to calculate hydraulic head elevations; and a minimum of three borehole volumes are purged, wherever possible, from each well. During the purging, field measurements of specific conductance are taken to assist in determining when fresh formation water is being removed from the well. Groundwater samples are collected from the monitoring wells using dedicated Waterra tubing and associated foot valves. Metals samples are filtered and acidified in the field. The groundwater samples are collected in laboratory supplied bottles that contain the appropriate preservative, where applicable. The samples are maintained at 4 0 Celsius and submitted to Philip Analytical Services Laboratory for analysis.

5 Mr. John Keating August 9, 2002 Page 4/8 Surface Water Monitoring Summary (Year 2000-Year 2002) Year 2002 To date, four monitoring events have occurred for the year During a quarterly monitoring event in April 2002, MGI Limited (MGI) collected surface water samples at seven (7) monitoring stations within the Clyde River watershed and the East Barclay and Barclay Brook sub-watersheds. These stations consist of SW-1 through SW-6 and the settling pond near the bulk sample extraction area. In May 2002, surface water samples were collected from SW-1, SW-2, SW-3, SW-4, SW-10 and from the settling pond as part of a monthly monitoring event. The monitor wells were sampled for general chemistry and metals in January and April 2002, with the exception of monitor well MW-91-01, which was not sampled in January due to access difficulties. Year 2001 Surface water samples were collected by MGI at seven (7) monitoring stations within the Clyde River watershed and East Barclay and Barclay Brook sub-watersheds on a monthly basis between April and December These stations consist of SW-1 through SW-6 and Lower Frog Pond (SW-9). In addition, the settling pond near the bulk sample extraction area was also sampled. Additional data for two other sampling locations (SW-8 and SW-9) were provided by Dillon Consulting Ltd. (Dillon). These samples were collected on June 6, Year 2000 Surface water samples were first collected at four locations (SW-1 through SW-4) within the Clyde River and East Barclay Brook during the spring and summer of Two more locations (SW-5 and SW-6) were added within the Clyde River watershed and East Barclay Brook and Barclay Brook sub-watersheds in the fall of W.G. Shaw & Associates (Shaw) collected these samples on April 3, May 28 and September 25, 2000.

6 Mr. John Keating August 9, 2002 Page 5/8 It is noted that, although a number of parties have been involved with the collection of surface water samples in the past, consistent sample collection and handling practices and sampling locations, where applicable, have been maintained. All samples collected by MGI and Dillon have been submitted to Philip Analytical Services, while those collected by Shaw were submitted to Environmental Services Laboratory (ESL), in Sydney, Nova Scotia. Both of the laboratories are CAEAL certified labs and employ standard analytical methods, thus ensuring the accuracy of the reported analytical data. Watercourses and Surface Water Quality Surface water samples were collected directly into new laboratory supplied bottles by dipping the bottles below the surface of the water while ensuring that bottom sediments were not disturbed. All samples were collected in as short of time possible to ensure that the samples collected are representative and comparable for data interpretation purposes. The samples were preserved as required (metal samples were field acidified) and stored at 4 C during shipment to the laboratory. The samples were sent to PSC Analytical Services Laboratories in Bedford, Nova Scotia for analysis. During the 2001 monitoring program, surface water samples were not collected at monitoring station SW-3 between August and December 2001, due to dry conditions. Samples were not collected from the Lower Frog Pond location (SW-9) in April, July and September 2001, due to time constraints while on site. The surface water analytical data is compared to the CCME Freshwater Aquatic Life Guidelines and is presented in Table 3, attached. The results of the chemical analyses of the samples illustrate considerable continuity of hydrochemical signatures within the sub-watersheds of the Clyde River and considerable continuity from season to season. The surface hydrochemical signatures indicate the waters are very fresh (TDS = 8.0 mg/l to 74 mg/l), very soft (hardness = 0.9 mg/l to 7.4 mg/l) and acidic (ph = 4.0 to 6.3).

7 Mr. John Keating August 9, 2002 Page 6/8 Most chemical parameters conform to the Canadian Council of the Ministers of the Environment (CCME) Guidelines for Freshwater Aquatic Life with the exception of a few select metals. The laboratory reported instances of copper, iron and lead levels being slightly in exceedence of the CCME guideline at select surface water stations throughout the monitoring program. Zinc levels were reported above guidelines at SW-2 on two occasions during the year 2001 monitoring program. The higher than average ph value of 6.3 for the sampling location SW-1 on April 3, 2000 may be due to the presence of some limestone material that is reported to have been deposited approximately 10 years ago as part of a river liming experiment. As can be seen in the attached data tables, the cation-anion balance is often greater than 5%, the generally accepted limit for this calculated parameter. An investigation into the possible cause for the discrepancy in the reported ion balance indicates that excess anions appear. The results of this investigation also suggest that this is due to the use of an alkalinity concentration equal to the detection limit when this parameter is reported as non-detect and/or occasional anomalously high sulphate concentrations that may be erroneous. With respect to alkalinity, it is anticipated that no alkalinity would exist in the acidic waters present in the area, therefore the use of a concentration equal to the detection limit for calculating anion sums likely results in erroneously high anion sums. In the case of the occasional high sulphate concentrations, it is noted that highly coloured samples will result in interferences with the colorimetric method employed by the lab for the sulphate analysis, thereby causing false highs. In the case of the samples with poor anion balances, recalculating the anion sum without an alkalinity input and, in the case of anomalously high sulphate levels, assuming sulphate concentrations that are more in line with typical concentrations observed in the area, results in ion balances within 5%. Discussions are ongoing with the lab to verify these conclusions and, if possible, derive alternate analytical procedures that will resolve the issue. As the current data represents baseline conditions, it appears that the minor metal exceedences are naturally occurring and likely reflect local geologic influences. The exceedences of ph and iron are

8 Mr. John Keating August 9, 2002 Page 7/8 characteristic of surface waters in the area due to acidic precipitation, low buffering capacity of the surficial sediment and bedrock and to the high availability of alumino-silicates within the surficial sediments and bedrock (granite). Groundwater Quality The collection of groundwater samples took place in January and April 2002, with the exception of MW-91-01, which was not sampled in January due to accessibility problems. The groundwater analytical data is compared to the CCME Freshwater Aquatic Life guidelines, due to the fact that groundwater may be discharged to surface watercourses during mining activities and to the Canadian Drinking Water Quality guidelines, due to the fact that groundwater may be used as a potable water source for the site. The groundwater data is presented in the attached tables. The available analytical data indicates that CCME Freshwater Aquatic Life guideline exceedences in groundwater include aluminum (all wells except MW-91-01), arsenic (MW-91-01), copper (MW and MW-01-41), cadmium (MW in January only), iron (MW in January only), lead (MW in January only), nickel (MW-91-01), zinc (MW in April only and MW-01-41), ph (January only in MW-99-20, MW and MW-01-41) and nitrite (MW-91-01). Canadian Drinking Water Quality (CDWQ) guideline exceedences to date include iron (MW in January only), manganese (MW in January only and MW-91-01), uranium (MW in January only), ph (January only in MW-99-20, MW and MW-01-41), colour (MW-01-41) and turbidity (all wells). It should be noted that, with the exception of lead and uranium, guidelines have been established for the parameters for which CDWQ exceedences have been reported for aesthetic reasons, such as taste and odour concerns or staining of plumbing fixtures. In addition, the lead and uranium exceedences are slight and were reported in one well (MW-01-41) during only one of the two monitoring events. Overall, the guideline exceedences reported in groundwater are minor and, as with the interpretation of the surface water analytical results, the observed groundwater quality appears to be related to

9 Mr. John Keating August 9, 2002 Page 8/8 natural conditions in the area, with the minor exceedences most likely being attributable to local bedrock and surficial deposits and the influence of acidic precipitation. We trust that this information is sufficient for your reference at this time. Please contact the undersigned should any questions arise. Sincerely, MGI LIMITED Steve Sauveur, MA.Sc., P.Geo. Project Manager Nicole Babineau, BA Environmental Technologist attachment cc: Dave Wood, Black Bull Resources Inc.

10 SW-1 General Chemistry -Analytical Results Summary Statistics CCME Guidelines Parameters Units 23-Apr May Aug Apr-01 1-Jun Jun Jul Aug Sep Oct Nov Dec Apr May Jun-02 Min Max Mean E.Coli cfu/100ml ns ns ns ns ns ns ns ns ns ns ns ns nd Total Coliform cfu/100ml ns ns ns ns ns ns ns ns ns ns ns ns nd nd Sodium mg/l Potassium mg/l nd Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l 3.2 nd 3 nd nd nd nd nd nd nd nd nd nd nd nd Sulfate mg/l nd nd nd nd 6 nd 25 3 nd Chloride mg/l Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l nd nd nd 0.1 nd 0.1 nd nd nd nd nd nd nd nd nd Phosphorus mg/l na na na nd nd nd nd nd 0.1 nd nd nd nd nd nd Nitrite mg/l na na na nd 0.01 nd nd nd 0.01 nd nd nd nd nd nd Nitrate + Nitrite (as N) mg/l nd 0.45 nd nd nd nd nd nd nd nd nd nd nd nd nd Nitrate (as N) mg/l na na na nd nd nd nd nd nd nd nd nd nd nd nd Ammonia (as N) mg/l nd nd 0.04 nd nd nd nd nd nd nd nd nd nd nd nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm na na ph Units >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd Carbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l Cation Sum meq/l na na na Anion Sum meq/l na na na Ion Balance % na na na Langlier 4C na na na Langlier 20C na na na Saturation 4C Units na na na Saturation 20C Units na na na Total Suspended Solids mg/l na 5 1 nd nd 5 nd 0.5 nd nd nd nd nd nd See Note ns not sampled 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date.

11 SW-2 General Chemistry -Analytical Results Parameters Summary Statistics CCME Guidelines 11-Oct Nov Dec Apr May Jun-02 Min Max Mean E.Coli cfu/100ml na na na na na na na na na na na na nd 6 > Total Coliform cfu/100ml na na na na na na na na na na na na nd nd Sodium mg/l Potassium mg/l nd Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd Sulfate mg/l nd nd nd 22 7 nd 19 nd nd Chloride mg/l Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l nd nd nd 0.1 nd nd nd nd nd nd nd nd nd Phosphorus mg/l na na na nd nd nd 0.1 nd nd nd nd nd nd Nitrite mg/l na na na nd nd nd nd nd nd nd nd nd nd nd nd Nitrate + Nitrite (as N) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd Nitrate (as N) mg/l na na na nd nd nd nd nd nd nd nd nd nd nd nd Ammonia (as N) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm na na na ph Units >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd Carbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l Cation Sum meq/l na na na Anion Sum meq/l na na na Ion Balance % na na na Langlier 4C na na na Langlier 20C na na na Saturation 4C Units na na na Saturation 20C Units na na na Total Suspended Solids mg/l na 3 4 nd nd nd nd nd nd nd nd nd nd See Note ns not sampled Units 23-Apr May Aug Apr-01 1-Jun Jun Jul Aug Sep-01 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

12 SW-3 General Chemistry -Analytical Results Parameters Units 23-Apr-00 Summary Statistics CCME Guidelines 17-Apr May Jun-02 Min Max Mean E.Coli cfu/100ml ns ns ns ns ns ns ns nd Total Coliform cfu/100ml ns ns ns ns ns ns ns nd nd nd Sodium mg/l 0.3 nd Potassium mg/l 0.2 nd nd Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd Sulfate mg/l nd nd nd Chloride mg/l Reactive Silica (as SiO2) mg/l nd Ortho Phosphate (as P) mg/l nd nd nd 0.1 nd nd nd nd Phosphorus mg/l nd nd nd 0.02 nd nd 0.4 nd 0.2 nd Nitrite mg/l nd nd nd nd nd nd 0.01 nd nd nd Nitrate + Nitrite (as N) mg/l nd nd nd nd nd nd nd nd nd nd Nitrate (as N) mg/l nd nd nd nd nd nd nd nd nd nd Ammonia (as N) mg/l nd nd nd nd nd nd nd nd nd nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm nd nd nd ph Units >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbondte (as CaCO3) mg/l nd nd nd nd nd nd nd Carbondte (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l Cation Sum meq/l nd nd nd Anion Sum meq/l nd nd nd Ion Balance % nd nd nd Langlier 4C nd nd nd Langlier 20C nd nd nd Saturation 4C Units nd nd nd Saturation 20C Units nd nd nd Total Suspended Solids mg/l nd nd nd See Note ns not sampled 28-May Aug Apr-01 1-Jun Jun Jul-01 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

13 SW-4 General Chemistry -Analytical Results Parameters Units 23-Apr May Aug Apr-01 1-Jun Jun-01 Summary Statistics CCME Guidelines 28-Aug Sep Oct Nov Dec Apr May Jun-02 Min Max Mean Sodium mg/l Potassium mg/l Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd nd 1 nd nd nd nd nd nd nd nd nd nd nd nd Sulfate mg/l nd nd nd 28 5 nd 32 3 nd Chloride mg/l Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l nd nd nd nd nd 0.01 nd 0.01 nd nd nd nd nd Phosphorus mg/l na na na 0.01 nd nd nd nd nd nd nd nd nd nd Nitrite mg/l na na na nd nd nd nd nd 0.01 nd nd nd 0.02 nd Nitrate + Nitrite (as N) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd Nitrate (as N) mg/l na na na nd nd nd nd nd nd nd nd nd nd nd nd Ammonia (as N) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm na na na ph Units >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd Carbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l Cation Sum meq/l na na na Anion Sum meq/l na na na Ion Balance % na na na Langlier 4C na na na Langlier 20C na na na Saturation 4C Units na na na Saturation 20C Units na na na Total Suspended Solids mg/l na nd nd nd nd nd nd nd nd See Note ns not sampled 26-Jul-01 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

14 SW-5 General Chemistry -Analytical Results Parameters Summary Statistics CCME Guidelines 11-Oct Nov Dec Apr-02 Min Max Mean Sodium mg/l ns ns Potassium mg/l ns ns nd nd Calcium mg/l ns ns Magnesium mg/l ns ns Alkalinity (as CaCO3) mg/l ns ns nd nd nd nd nd nd nd nd nd nd nd Sulfate mg/l ns ns nd nd nd 29 3 nd 2 4 nd Chloride mg/l ns ns Reactive Silica (as SiO2) mg/l ns ns Ortho Phosphate (as P) mg/l ns ns nd 0.1 nd nd 0.01 nd nd 0.01 nd Phosphorus mg/l ns ns na 0.01 nd 0.05 nd nd 0.1 nd nd nd nd Nitrite mg/l ns ns na nd nd nd nd nd nd nd nd nd Nitrate + Nitrite (as N) mg/l ns ns nd nd nd nd nd nd nd nd nd nd nd Nitrate (as N) mg/l ns ns na nd nd nd nd nd nd nd nd nd nd Ammonia (as N) mg/l ns ns nd nd nd nd nd nd nd nd nd See Note Total Organic Carbon mg/l ns ns Color TCU ns ns Turbidity NTU ns ns Conductance (RCAp) us/cm ns ns na ph Units ns ns >6.5;<9.0 - Hardness (as CaCO3) mg/l ns ns Bicarbonate (as CaCO3) mg/l ns ns 0.4 nd nd nd nd nd nd nd nd nd nd Carbonate (as CaCO3) mg/l ns ns nd nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l ns ns Cation Sum meq/l ns ns na Anion Sum meq/l ns ns na Ion Balance % ns ns na Langlier 4C ns ns na Langlier 20C ns ns na Saturation 4C Units ns ns na Saturation 20C Units ns ns na Total Suspended Solids mg/l ns ns 4 nd nd 2 nd nd See Note ns not sampled Units 23-Apr May Aug Apr-01 1-Jun Jun Jul Aug Sep-01 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

15 SW-6 General Chemistry -Analytical Results Parameters Sodium mg/l Potassium mg/l nd nd Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd Sulfate mg/l nd nd nd 30 7 nd nd 4 nd Chloride mg/l Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l nd nd nd nd nd nd 0.01 nd nd nd nd Phosphorus mg/l na 0.01 nd 0.06 nd nd 0.1 nd nd nd nd Nitrite mg/l na nd nd nd nd nd nd nd nd nd nd Nitrate + Nitrite (as N) mg/l nd nd nd nd 0.05 nd nd nd nd nd nd Nitrate (as N) mg/l na nd nd nd 0.05 nd nd nd nd nd nd Ammonia (as N) mg/l 0.04 nd nd nd nd nd nd nd nd nd nd See Note Color TCU Total Organic Carbon mg/l nd Turbidity NTU Conductance (RCAp) us/cm na ph Units >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l 0.4 nd nd nd nd nd nd nd nd nd nd Carbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l Cation Sum meq/l na Anion Sum meq/l na Ion Balance % na Langlier 4C na Langlier 20C na Saturation 4C Units na Saturation 20C Units na Total Suspended Solids mg/l nd nd nd nd nd nd See Note ns not sampled Units 28-Aug Apr-01 1-Jun Jun Jul-01 Summary Statistics CCME Guidelines 28-Aug Sep Oct Nov Dec Apr-02 Min Max Mean The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

16 SW-8 General Chemistry -Analytical Results Parameters Units 6-Jun-01 CCME Guidelines Sodium mg/l Potassium mg/l nd 0.1 Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd 1 Sulfate mg/l nd 2 Chloride mg/l Phosphorus mg/l nd 0.5 Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l nd 0.1 Nitrite mg/l nd Nitrate + Nitrite (as N) mg/l nd 0.05 Nitrate (as N) mg/l nd 0.05 Ammonia (as N) mg/l nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm 29 1 ph Units 4.9 >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd 1 Carbonate (as CaCO3) mg/l nd 1 TDS (Calculated) mg/l 11 1 Cation Sum meq/l Anion Sum meq/l Ion Balance % Langlier 4C Langlier 20C Saturation 4C Units Saturation 20C Units Total Suspended Solids mg/l nd See Note ns not sampled 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

17 SW-9 General Chemistry -Analytical Results Parameters Units 6-Jun-01 CCME Guidelines Sodium mg/l Potassium mg/l nd 0.1 Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd 1 Sulfate mg/l nd 2 Chloride mg/l Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l Phosphorus mg/l nd 0.1 Nitrite mg/l nd Nitrate + Nitrite (as N) mg/l nd 0.05 Nitrate (as N) mg/l nd 0.05 Ammonia (as N) mg/l nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm 33 1 ph Units 4.3 >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd 1 Carbonate (as CaCO3) mg/l nd 1 TDS (Calculated) mg/l 13 1 Cation Sum meq/l Anion Sum meq/l Ion Balance % Langlier 4C Langlier 20C Saturation 4C Units Saturation 20C Units Total Suspended Solids mg/l nd See Note ns not sampled 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made

18 SW-10 General Chemistry - Analytical Results CCME Guidelines Parameters Units 14-May Sodium mg/l Potassium mg/l Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd 1 Sulfate mg/l 24 2 Chloride mg/l 4 1 Reactive Silica (as SiO2) mg/l Ortho Phosphate (as P) mg/l nd 0.01 Phosphorus mg/l Nitrite mg/l nd Nitrate + Nitrite (as N) mg/l nd 0.05 Nitrate (as N) mg/l nd 0.05 Ammonia (as N) mg/l nd See Note Color TCU Total Organic Carbon mg/l Turbidity NTU Conductance (RCAp) us/cm 33 1 ph Units 4.4 >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd 1 Carbonate (as CaCO3) mg/l nd 1 TDS (Calculated) mg/l 40 1 Cation Sum meq/l Anion Sum meq/l Ion Balance % Langlier 4C Langlier 20C Saturation 4C Units Saturation 20C Units Total Suspended Solids mg/l nd See Note na nd ns not analyzed non-detect not sampled 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

19 Pit Pond General Chemistry -Analytical Results Parameters Units 25-Apr-01 1-Jun Jun Jul Aug-01 Sodium mg/l Potassium mg/l Calcium mg/l Magnesium mg/l Alkalinity (as CaCO3) mg/l nd nd nd nd nd nd nd 1 nd nd nd nd Sulfate mg/l nd 6 5 nd nd Chloride mg/l Reactive Silica (as SiO2) mg/l nd nd nd nd nd nd nd Ortho Phosphate (as P) mg/l 0.1 nd nd nd nd nd nd 0.01 nd Phosphorus mg/l nd nd nd 0.1 nd nd nd nd nd Nitrite mg/l nd nd nd nd nd 0.01 nd nd nd 0.02 nd nd Nitrate + Nitrite (as N) mg/l nd nd nd nd nd nd nd nd nd 0.06 nd Nitrate (as N) mg/l nd nd nd nd nd nd nd nd nd nd nd Ammonia (as N) mg/l nd nd nd nd nd nd nd nd nd nd nd nd See Note Color TCU nd Total Organic Carbon mg/l nd nd Turbidity NTU Conductance (RCAp) us/cm ph Units >6.5;<9.0 - Hardness (as CaCO3) mg/l Bicarbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd Carbonate (as CaCO3) mg/l nd nd nd nd nd nd nd nd nd nd nd nd TDS (Calculated) mg/l Cation Sum meq/l Anion Sum meq/l Ion Balance % Langlier 4C Langlier 20C Saturation 4C Units Saturation 20C Units Total Suspended Solids mg/l See Note ns not sampled Summary Statistics CCME Guidelines 12-Sep Oct Nov Dec Apr May Jun-02 Min Max Mean The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

20 Frog Pond General Chemistry -Analytical Results Parameters Units 25-Apr-01 1-Jun Jun-01 Summary Statistics CCME Guidelines 11-Oct Nov Dec-01 Min Max Mean Sodium mg/l ns ns 3.2 ns Potassium mg/l ns ns 0.2 ns Calcium mg/l ns ns 0.2 ns Magnesium mg/l ns ns 0.2 ns Alkalinity (as CaCO3) mg/l ns nd nd ns nd ns nd nd nd Sulfate mg/l ns nd 25 ns nd ns 4 nd Chloride mg/l ns ns 4.2 ns Reactive Silica (as SiO2) mg/l ns ns 8.4 ns Ortho Phosphate (as P) mg/l ns nd nd ns nd ns nd nd nd Phosphorus mg/l ns nd 0.02 ns nd ns nd nd nd Nitrite mg/l ns nd nd ns nd ns nd nd nd Nitrate + Nitrite (as N) mg/l ns nd nd ns nd ns nd nd nd Nitrate (as N) mg/l ns nd nd ns nd ns nd nd nd Ammonia (as N) mg/l ns nd nd ns nd ns nd nd nd See Note Color TCU ns ns 73 ns Total Organic Carbon mg/l ns ns 10.9 ns 8.7 nd Turbidity NTU ns nd nd ns 0.2 ns Conductance (RCAp) us/cm ns ns 25 ns ph Units ns ns 4.8 ns >6.5;<9.0 - Hardness (as CaCO3) mg/l ns ns 1.3 ns Bicarbonate (as CaCO3) mg/l ns nd nd ns nd ns nd nd nd Carbonate (as CaCO3) mg/l ns nd nd ns nd ns nd nd nd TDS (Calculated) mg/l ns ns 19 ns Cation Sum meq/l ns ns 0.19 ns Anion Sum meq/l ns ns 0.18 ns Ion Balance % ns ns 1.76 ns Langlier 4C ns ns ns Langlier 20C ns ns ns Saturation 4C Units ns ns 11.8 ns Saturation 20C Units ns ns 11.4 ns Total Suspended Solids mg/l ns ns 1.5 ns nd nd nd See Note ns not sampled 26-Jul Aug Sep-01 2 The ammonia guideline value varies with ph and temperature, however, a published guideline does not exist for the low ph conditions observed in the area. The closest guideline values are at least 3 to 4 orders of magnitude greater than ammonia concentrations observed to date. 3 The CCME guidelines for TSS are relative to background conditions under clear flow conditions. The current dataset represents background conditions, therefore, no guideline comparison can be made.

21 SW-1 Metals -Analytical results Parameters Units 23-Apr May Aug Apr-01 1-Jun Jun Jul-01 Summary Statistics CCME Guidelines 28-Aug Sep Oct Nov Dec Apr May Jun-02 Min Max Mean Aluminum mg/l na na Antimony mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd Arsenic mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd Barium mg/l na na nd nd nd nd nd nd nd nd nd nd nd Beryllium mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Bismuth mg/l na na na nd nd nd nd nd nd nd nd nd nd nd nd Boron mg/l na na 0.01 nd nd nd nd nd Cadmium mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Chromium mg/l na na nd nd nd nd nd nd nd nd nd nd nd Cobalt mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Copper mg/l nd nd nd nd nd nd nd nd nd nd nd nd * Iron mg/l na na na Lead mg/l na na * Manganese mg/l na na na Mercury mg/l na na na na na na na na na na na na nd nd Molybdenum mg/l na na na nd nd nd nd nd nd nd nd nd nd nd nd Nickel mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd * Selenium mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Silver mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Strontium mg/l na na nd nd nd nd nd nd nd nd nd nd nd Thallium mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Tin mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd nd Titanium mg/l na na na nd nd nd nd Uranium mg/l na na Vanadium mg/l na na nd nd nd nd nd nd nd nd nd nd nd nd Zinc mg/l nd * Guideline value is based on reported hardness

22 SW-2 Metals -Analytical results Parameters Units 25-Apr-01 1-Jun Jun Jul Aug Sep Oct Nov Dec-01 Summary Statistics CCME Guidelines 17-Apr May Jun-02 Min Max Mean Aluminum mg/l Antimony mg/l nd nd nd nd nd nd nd nd nd nd nd nd Arsenic mg/l nd nd nd nd nd nd nd nd nd nd nd nd Barium mg/l nd nd nd nd nd nd 0.16 nd nd nd nd nd Beryllium mg/l nd nd nd nd nd nd nd nd nd nd nd nd Bismuth mg/l nd nd nd nd nd nd nd nd nd nd nd nd Boron mg/l nd nd nd Cadmium mg/l nd nd nd nd nd nd nd nd nd nd nd Chromium mg/l nd nd nd nd nd nd nd nd nd nd nd nd Cobalt mg/l nd nd nd nd nd nd nd nd nd nd nd nd Copper mg/l nd nd nd nd nd nd nd nd nd * Iron mg/l Lead mg/l * Manganese mg/l Mercury mg/l na na na na na na na na na nd nd Molybdenum mg/l nd nd nd nd nd nd nd nd nd nd nd nd Nickel mg/l nd 3 nd nd nd nd nd nd nd nd nd nd * Selenium mg/l nd nd nd nd nd nd nd nd nd nd nd nd Silver mg/l nd nd nd nd nd nd nd nd nd nd nd nd Strontium mg/l nd nd nd nd nd nd nd nd nd nd nd Thallium mg/l nd nd nd nd nd nd nd nd nd nd nd nd Tin mg/l nd nd nd nd nd nd nd nd nd nd nd nd Titanium mg/l nd nd nd Uranium mg/l Vanadium mg/l nd nd nd nd nd nd nd nd nd nd nd nd Zinc mg/l * Guideline value is based on reported hardness ns not sampled