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June 2014
BROWNS RANGE PROJECT
Preliminary Geochemical Assessment of Tailings Acidic and Metalliferous Drainage Potential
REPO
RT
Report Number. 137645044-011-R-Rev2
Distribution: 1 Electronic Copy – Northern Minerals Ltd 1 Electronic Copy – Golder Associates Pty Ltd
Submitted to: Northern Minerals Ltd PO Box 669 WEST PERTH WA 6872
BROWNS RANGE PROJECT – PRELIMINARY GEOCHEMICAL ASSESSMENT OF TAILINGS
June 2014 Report No. 137645044-011-R-Rev2 i
Table of Contents
1.0 INTRODUCTION ........................................................................................................................................................ 1
2.0 SCOPE OF WORK .................................................................................................................................................... 1
3.0 SAMPLE INFORMATION .......................................................................................................................................... 1
3.1 Tailings generation ....................................................................................................................................... 1
3.2 Tailings mass balance .................................................................................................................................. 2
3.3 Sample origin ................................................................................................................................................ 3
3.4 Sample delivery ............................................................................................................................................ 4
3.5 Sample preparation ...................................................................................................................................... 4
3.5.1 Golder laboratory .................................................................................................................................... 4
3.5.2 ALS laboratory ........................................................................................................................................ 4
4.0 METHODS ................................................................................................................................................................. 5
4.1 Analysis suites .............................................................................................................................................. 5
4.2 Parameters analysed .................................................................................................................................... 5
Solid suite (listed as soil on ALS laboratory certificates) ............................................................................................ 5
Liquid suite (listed as water on ALS laboratory certificates) ....................................................................................... 5
Leachate suite (listed as deionised water leachate on ALS laboratory certificates) ................................................... 6
5.0 RESULTS AND INTERPRETATION ......................................................................................................................... 6
5.1 Data presentation ......................................................................................................................................... 6
5.2 Comparative Guidelines for Constituents of Interest ..................................................................................... 6
5.3 Quality assurance (QA) and quality control (QC) .......................................................................................... 7
5.3.1 Quality of analysis ................................................................................................................................... 7
5.4 General chemistry and acid producing potential ........................................................................................... 7
5.4.1 Flotation tailings ...................................................................................................................................... 7
5.4.2 Hydromet tailings .................................................................................................................................... 9
5.4.3 Treated waste water.............................................................................................................................. 11
5.5 Potential effects of mixed tailings streams .................................................................................................. 11
6.0 CONCLUSIONS ....................................................................................................................................................... 12
7.0 RECOMMENDATIONS ............................................................................................................................................ 13
8.0 LIMITATIONS .......................................................................................................................................................... 14
REFERENCES .................................................................................................................................................................. 15
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TABLES Table 1: Tailings mass balance summary ........................................................................................................................... 3
Table 2: Sample information (NML, 2014a)......................................................................................................................... 4
Table 3: Analytes with breached laboratory holding times as reported in laboratory QC certificate .................................... 7
Table 4: COI analysis results for the flotation, hydromet solid samples and combined. Sulfide sulfur calculated as balance after subtraction of sulfate sulfur from total sulfur. .............................................................................. 10
FIGURES Figure 1: Schematic representation of plant process and waste streams generation ......................................................... 2
APPENDICES APPENDIX A Laboratory Chain of Custody and Certificates of Analysis
APPENDIX B Result Tables
APPENDIX C AMIRA (2002) Classification Flow Chart
APPENDIX D Limitations
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1.0 INTRODUCTION Golder Associates Pty Ltd (Golder) has been engaged by Northern Minerals Ltd (NML) to provide consulting services to undertake options studies for tailings management at the Browns Range Project, located approximately 150 km south-east of Halls Creek in Western Australia.
The Browns Range Project comprises several deposits of Xenotime (yttrium orthophosphate – YPO4) and other “heavy” rare earth minerals, as well as some “light” rare earths. NML currently envisages a process that will involve crushing/grinding the ore, flotation (flot) and/or magnetic separation to produce a rare earth concentrate, containing total rare earth oxides (TREO). The process plant is expected to generate two tailings streams, one from a beneficiation plant, which produces approximately 90% of the total tailings and one from a hydrometallurgical plant, which will produce the remaining 10%.
NML commissioned Golder to undertake a preliminary geochemical characterisation of the tailings in order to assist NML with a prefeasibility study (PFS) and environmental approvals.
2.0 SCOPE OF WORK This report presents the findings from studies undertaken to geochemically characterise tailings material to support preliminary design and environmental considerations. The samples used in the assessment were supplied from the beneficiation and hydrometallurgical (hydromet) pilot plants, as generated by NML in its process development studies. The assessment should be considered as preliminary, as the final tailings composition has not yet been determined. Assessment of the material has included analysis of geochemical properties that could influence tailings dewatering options and storage facility designs with respect to meeting environmental compliance criteria. The properties of the tailings considered in this assessment were:
Acid forming potential
Content of elements of environmental importance (EEIs)
Leachable elements of environmental importance.
3.0 SAMPLE INFORMATION 3.1 Tailings generation The metallurgical process is currently being optimised. As a result, there remains some uncertainty in regards the composition of the final tailings material. The tailings generated at the process plant are expected to comprise the seven or eight waste streams presented in Figure 1 on page 2.
The sample used to represent the output from the beneficiation plant, representing 90% of the final tailings mass flow, comprised tailings from the flotation process only (Option 2, Figure 1). At the time of testing, NML advised Golder that this was the preferred option for the beneficiation process. Therefore, the geochemical characterisation of the tailings generated from Option 1 (Figure 1) that represents a combined magnetic and flotation process has not been included in this assessment.
The sample used to represent the tailings output from the hydrometallurgical plant, representing 10% of the final tailings mass flow, comprised the following components:
Water leach residue (WLR)
Conditioning residue (CR)
Waste water residue (WWR) representative of the combined ion exchange residue (IXR tailings) and oxalate residue (OXR tailings).
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Figure 1: Schematic representation of plant process and waste streams generation
The flotation and hydrometallurgical (hydromet) tailings samples were supplied by NML as slurry and dried solids, respectively (refer to Section 3.4).
A sample representative of the gas scrubber waste (GSW), which represents approximately 13% of the mass of the combined hydromet tailings stream, was not available to test. Therefore, the GSW was not included in the assessment. The GSW tailings stream component of the hydromet sample was substituted with commercially available gypsum in physical testwork (Golder, 2013). The substitution was based on information received form NML that gypsum will represent the major component of the output from the gas scrubber. Commercially available gypsum was not included in the sample for geochemical testwork. The geochemical properties of the GSW, with respect to content of EEIs are unknown. Introduction of commercially available gypsum may influence the results of geochemical analysis but cannot be considered to be representative of the GSW. The GSW may have the potential to include EEIs or other properties that may affect the mobility of these components of interest to the study. The effect of the GSW on the leachability of elements of concern from the tailings streams will need to be verified in the future.
As a result of the above considerations, the hydromet sample should, therefore, be viewed as a partial sample.
3.2 Tailings mass balance The proportions of individual waste streams used to create the hydromet solid were provided in an email dated 17 October 2013. These are shown in Table 1.
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Table 1: Tailings mass balance summary
Tailings streams Percentage of Total Tailings
Percentage of Hydromet Tailings
Beneficiation tailings 90% - Hydromet tailings 10% - Total tailings 100% Hydromet tailings streams GSW (excluded from testing) 1.35% 13.45 % WLR 4.26% 42.57 % CR 1.12% 11.24 % WWR (IXR +OXR) 32.7% 32.73 % Total of hydromet tailings 10 % 100%
As a result of ongoing discussions between NML and Golder, the scope of work was modified from the characterisation of a combined flotation tailings and hydromet tailings sample, to the analysis of some of the individual components of the total tailings. This was done because alteration of the components and/or mixing ratio in the final tailings is likely to alter the chemistry and, therefore, reduce the transferability of the preliminary assessment to future work. Accordingly, individual geochemical analysis of the two tailings streams was chosen as the preferred option for this preliminary study. Determination of the geochemical characteristics of the tailings components allowed for mass-balance estimates of combined character to be made, with some reservation due to the missing GSW tailings stream. The estimated ratio of beneficiation to hydromet streams for the final tailings material is 90:10 (NML 2014b).
A sample of treated waste water from the waste water treatment plant (WWTP) was also analysed to provide data for use in design and environmental considerations, which are not part of Golder’s brief. The WWTP sample was sent for analysis, as received.
In summary the following samples were sent for geochemical analysis:
Solid hydromet tailings
Solid and liquid phases of the flotation tailings, as separated (in the analytical laboratory) from the slurry
Treated waste water (TWW) from the WWTP.
The analytical methods used to characterise the samples are listed in Section 4.0.
3.3 Sample origin The samples of flotation tailings and hydromet tailings used in the geochemical testwork were subsamples of material used for geotechnical and rheological test work, received at Golder between August and October 2013 (Golder, 2013).
Sample information provided to Golder by NML (NML, 2014a) is summarised below and in Table 2.
The ore sample used for the pilot plant at SGS comprised a drill core composite from the Wolverine area and a rotary core (RC) chip composite from Wolverine, Gambit West and Gambit areas of the project. The ratio of Wolverine, Gambit West and Gambit material was indicative of the resource. The beneficiation tailings sample was generated via flotation processing of ore by the first pilot plant run carried out at SGS Laboratories. The hydromet sample was generated by hydromet test work carried out at ALS Ammtec, using the concentrate produced during the same pilot plant run at SGS.
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Table 2: Sample information (NML, 2014a)
Sample Mass, kg Total Rare Earth Oxide (TREO), %
Combined Ore used in Pilot Plant 1022 0.9878 Wolverine drill core composite 484 0.7795 Wolverine, Gambit West and Gambit RC chip composite 538 1.175
3.4 Sample delivery On 9 August 2013, a 200 L plastic drum containing approximately 200 L of flotation tailings material, at 16.3 % solids concentration by dry mass, was received by Golder’s Perth Geotechnical laboratory from NML.
On 16 October 2013, a plastic bucket containing four bags of dry materials that represent the components of the hydromet tailings, and a plastic bucket containing 20 L of TWW were received by Golder's Perth's Geotechnical Laboratory, from ALS Laboratories in Perth.
NML informed Golder that the hydromet tailings had been oven dried at 100°C by ALS to perform moisture content testing prior being delivered to Golder laboratory.
The total dry mass of hydromet tailings provided by ALS was 2.55 kg. The mass of each individual hydromet tailings streams were the following:
1000 g of WLR
200 g of CR
200 g of CR + WLR combined
950 g of WWR.
3.5 Sample preparation 3.5.1 Golder laboratory The hydromet tailings sample was prepared combining the WLR, CR and WWR tailings in accordance with the proportions presented in Table 1. On 25 October, 2013, approximately 500 g of the prepared hydromet tailings sample, 500 g equivalent dry mass of flotation tailings sample (with a measured solids concentration of 16.3% by mass) and TWW sample was sent to NATA-accredited ALS laboratory in Perth. Some procedures (ASLP, see Section 4.1) were undertaken at ALS Sydney. Shipping and handling of material (including sample splitting for distribution to the outlets of ALS) to Sydney was internally arranged by ALS.
3.5.2 ALS laboratory The solid hydromet sample was subsampled and analysed, as received with no washing or further drying. The liquid TWW sample was subsampled and analysed, as received. The flotation tailings sample was separated into solid and liquid phases by centrifuge.
ALS laboratories verbally notified Golder that the flotation tailings sample did not settle and was not easily filterable due to the amount of fines suspended in solution. Consequently, the sample was centrifuged. ALS indicated that the solids fraction from the centrifuge process comprised two components with distinct character: a fine sandy silt fraction that separated easily and a hygroscopic sludge (presumed to be the suspended material) that was very difficult to separate from solution.
The two solid fractions were recombined and homogenised prior to analysis of the flotation solids, since the centrifuge process was an operational amendment to the sample material for chemical analysis.
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4.0 METHODS 4.1 Analysis suites Three suites of analysis were undertaken, namely a liquid analysis suite, a solid analysis suite and a solids leachate analysis suite. The purpose of the liquid and solid analysis suites was to characterise the content of the solid and liquid phases.
The solid suite of analysis was applied to the:
Solid fraction, inclusive of settled suspended solids, as separated from the flotation tailings sample via centrifuge
Solid hydromet sample, as received
The liquid suite of analysis was applied to the:
Process water, as separated from the flotation tailings sample
TWW sample
The leachate suite of analysis was applied to the liquid sample generated from a leachate test undertaken on both flotation and hydromet solids.
The purpose of the leachate analysis was to characterise the content of the solid material that is easily leachable using a mild leachant in a short timeframe. The Australian Standard Leachate Procedure (ASLP A4439.3) was applied as the standard leach test. The ASLP is frequently applied in preliminary assessments of the leachability of constituents of interest (COI) from environmental samples. The leachant used was deionised water, chosen to allow the analysis of dissolved nitrogen and sulfur species. The liquid to solid ratio of the test was 20:1.
4.2 Parameters analysed Parameters analysed for each analysis suite are as follows:
Solid suite (listed as soil on ALS laboratory certificates)
General parameters: Paste pH and electrical conductivity (EC) (saturated paste)
Net acid generating potential (NAPP, kg H2SO4/t) inclusive of:
Acid neutralising capacity (ANC)
Total sulfur and sulfate sulfur contents
Maximum potential acidity (MPA)
Net acid generation (NAG) test
Elemental analysis following extraction by acid digest: aluminium, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, chromium, cobalt, copper, iron, lead, lithium, manganese, mercury, molybdenum, nickel, selenium, silver, strontium, thallium, thorium, tin, uranium, vanadium and zinc
Liquid suite (listed as water on ALS laboratory certificates)
General parameters: pH, electrical conductivity (EC), acidity
Major cations: calcium, magnesium, potassium and sodium
Major anions: chloride, sulfur, sulfate, total and speciated alkalinity
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Dissolved elements: extended suite including trace elements (aluminium, antimony, arsenic, barium, beryllium, bismuth, boron, cadmium, caesium, cerium, chromium, cobalt, copper, dysprosium, erbium, europium, gadolinium, gallium, hafnium, holmium, indium, iron, lanthanum, lead, lithium, lutetium, manganese, molybdenum, neodymium, nickel, praseodymium, rubidium, samarium, selenium, silicon, silver, strontium, tellurium, terbium, thallium, thorium, thulium, tin, titanium, uranium, vanadium, ytterbium, yttrium, zinc, and zirconium)
Nitrate, nitrite and total nitrogen
Phosphorus.
Leachate suite (listed as deionised water leachate on ALS laboratory certificates)
General parameters: pH, electrical conductivity, acidity
Major cations: calcium, magnesium, potassium and sodium
Major anions: chloride, sulfur, sulfate and total and speciated alkalinity
Dissolved elements: aluminium, antimony, arsenic, barium, beryllium, bismuth, boron, cerium, caesium, cobalt, copper, indium, iron, lead, lithium, manganese, mercury, molybdenum, nickel, rubidium, selenium, silicon, strontium, thallium, thorium, tin, titanium, uranium
Nitrate, nitrite and total nitrogen
Phosphorus.
5.0 RESULTS AND INTERPRETATION 5.1 Data presentation Results are shown in the laboratory test certificates provided in Appendix A. The certificates are the latest versions supplied by ALS on the 31 March 2014, which supersede previously presented versions.
A summary of results is presented in Tables 1B through 3B in Appendix B, where they are tabulated and compared to published guideline values for COIs.
5.2 Comparative Guidelines for Constituents of Interest The guidelines cited in Tables 1B through 3B in Appendix B were used to compare against results of the study and are intended to provide a basis for discussion. They do not represent directly applicable regulatory standards for tailings material, or leachates derived from them.
The following guidelines are compared:
Tailings solid samples:
Landfill Waste Classification and Waste Definitions 1996, for Class I/II, Class III, and Class IV waste.
Classification of potentially acid forming material (PAF) and non-acid forming material (NAF) based upon Australian best practice guidelines (AMIRA 2002) and recommended by GARD Guide (INAP 2012). The AMIRA classification guide is provided in Appendix C.
Water Samples:
ANZECC 2000 Groundwater (GW) long-term irrigation water protection values
ANZECC 2000 Livestock drinking water trigger values (low risk)
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Leachate Samples:
ANZECC 2000 GW long-term Irrigation water protection values
ANZECC 2000 livestock drinking water trigger values (low risk)
Landfill Waste Classification and Waste Definitions 1996, specifically for the ASLP extraction method (1:20 solid to liquid ratio).
5.3 Quality assurance (QA) and quality control (QC) 5.3.1 Quality of analysis The laboratory facilities used in analysis of the samples received are NATA accredited. All analyses were subject to the laboratories’ own QA/QC procedures (see ALS QC report appended to laboratory certificates, Appendix A).
The chemistry of tailings material (solid and liquid) will be affected by storage times. The representativeness of the chemistry of the samples sent for analysis compared to the output from the process plant may be reduced as a result of the extended holding times. This effect is likely to be greater in the slurry sample and TWW sample than in the solid hydromet sample.
Sub-sampling for geochemical analysis was undertaken as soon as sample preparation at Golder was complete. Water samples were stored in a refrigerator prior to shipment to the laboratory (ALS Perth) for analysis. Breaches in holding time at the laboratory are highlighted in laboratory certificates for the analytes listed in Table 3. The results for analysis highlighted in Table 3 should be interpreted with additional caution in view of these breaches.
Table 3: Analytes with breached laboratory holding times as reported in laboratory QC certificate Sample Matrix Sample Type Sample Preparation
Breaches (Days) Sample Analysis Breaches (Days)
Solid
Hydromet tailings - pH (4 days) Flotation and hydromet tailings Sulfur as SO4 (19 days) - Flotation and hydromet tailings Total sulfur by LECO (12 days) - Flotation and hydromet tailings - ASLP leach (7 days)
Water
Flotation process water - pH (13 days) Treated waste water - pH (6 days) Flotation process water - Dissolved major cations (3 days) Treated waste water - Dissolved major cations (6 days) Flotation process water - Nitrite (10 days)
Holding times applied by the analytical laboratory from the date of sample receipt and are additional to the storage time of the samples before reaching the laboratory. Results for the flotation tailings will be most affected by the breaches in preparation time since the distribution of analytes between solid and liquid phase is subject to equilibrium controls that are time dependent on timescales that may exceed the holding time. The delay in pH analysis is likely to cause the result in the laboratory to differ from the tailings output stream in the field since pH is sensitive to equilibrium with the atmosphere.
5.4 General chemistry and acid producing potential 5.4.1 Flotation tailings The beneficiation tailings stream (flotation process, magnetic process or a combination) will constitute 90% of the deposited tailings by mass, based on current design assumptions.
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Solid The flotation tailings solid phase is non-acid forming (NAF) based on the NAPP value of <0.5 kg H2SO4/t (Table 1B in Appendix B), from the AMIRA 2002 classification system (Appendix C). Acid neutralising capacity (ANC) was below limit of reporting (LOR, <0.5 kg H2SO4/t). Therefore, the sample does not have capacity to readily buffer acidity. The total sulfur result was also below LOR (<0.01 % by weight) and, therefore, maximum potential acidity (MPA), as calculated from total sulfur was also below LOR (<0.5 kg H2SO4/t). The NAGpH test result of (pH 6.3) corroborates the classification of the flotation tailings as NAF. It demonstrates that addition of a strong oxidising agent to oxidise the sulfides present in the sample does not result in acidification of the sample. The NAGpH result is above pH 4.5 and in combination with the <LOR NAPP result allows the material to be classified as NAF. The NAG-pH titration result of 6.3 kg H2SO4/t to pH 7.0 infers that a small amount of residual acidity may be from the formation of metal hydroxides in solution, or from neutralisation of acidity already in solution, in either case the presence and oxidation of sulfide minerals is not indicated.
Elevations within the flotation tailings solid were noted with respect to landfill waste classifications (as highlighted in Table 1B in Appendix B) for chromium (118 mg/kg), lead (5.6 mg/kg), molybdenum (16.2 mg/kg), nickel (97.8 mg/kg) and selenium (2 mg/kg).
Liquid (flotation tailings process water) The beneficiation plant will contribute approximately 75% of the liquid entering the TSF (NML 2014b). In the absence of significant rainfall, the liquid phase of the beneficiation sample will therefore constitute the majority of the recoverable pond decant and seepage waters from the TSF. The liquid phase of the slurry when separated from the tailings solid phase, was mildly alkaline (pH 8.1), with moderate bicarbonate alkalinity (248 mg/L) and some acidity (57 mg/L). Electrical conductivity (EC) was 1230 µS/cm and as a proxy for total salinity, was akin to slightly brackish waters.
The flotation tailings process water does not exceed the DoE ASLP Class I Landfill Waste Guidelines for the elements (mg/L) for which the criteria have been defined (refer Table 3B in Appendix B). The ASLP criteria are not directly applicable to the sample, but the process water is anticipated to be more concentrated than the ASLP leachate derived from an equivalent sample. Therefore, it is suggested that leachability of these elements is low compared to these criteria. However, elevations were noted with respect to ANZECC and DEC irrigation protection levels (as highlighted in Table 2B in Appendix B) for the following dissolved constituents of the flotation tailings process water:
Major ions and nutrients: sodium (256 mg/L), chloride (215 mg/L) and phosphorus (1.45 mg/L)
Metals and other elements of environmental interest: boron (0.13 mg/L), copper (0.334 mg/L), iron (3.2 mg/L), manganese (0.433 mg/L) and molybdenum (0.061 mg/L).
The elevated concentration of dissolved iron is of interest, but not necessarily of concern, since iron has a propensity to precipitate from solution at neutral to alkaline pH, as reported for flotation tailings and anticipated fully toxic conditions. Upon precipitation, iron may remove other metals and metalloids (e.g. copper and arsenic) from solution. The mechanisms may be variable depending on the geochemical environment, but could include sorption and or co-precipitation reactions of dissolved and colloidal iron, manganese and aluminium hydroxides. It should also be noted that the filter size used in the analysis of 'dissolved' metals (0.45 µm) will allow the passage of some colloidal material into the filtered sample. Therefore, a proportion of the reported concentrations of iron and manganese, and possibly other metals to a lesser extent, may be related to the presence of colloids in water at the time of the analysis.
Leaching test The flotation tailings solid was shown to have very limited capacity for continued supply of dissolved constituents to solution when leached with de-ionised (DI) water (20:1 liquid to solid ratio). DI water is a low ionic strength solution that may be considered to be a proxy for rainwater contacting the tailings after deposition. The quality of the leachate gives an indication of the mobility of elements that may be anticipated in time from the tailings storage facility once the process water has decanted or seeped through the tailings.
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Leachate pH was alkaline (pH 9.4), EC was very low (60 µS/cm), alkalinity was low (2 mg/L) and acidity was below limit of reporting (LOR, <1 mg/L). This is anticipated given that the beneficiation process is likely to liberate many of the mobile constituents into the liquid phase of the flotation slurry. The 20:1 ASLP test is a standardised test that allows for comparison with landfill waste classifications. However, in reality the liquid to solid ration within the tailings may be lower due to the net evaporative climate and concentrations in pore waters.
The ASLP leachate derived from the floatation solids do not exceed the DoE ASLP Class I landfill waste guidelines for the elements (mg/L) for which the criteria have been defined. However, elevations were noted with respect to ANZECC and DEC irrigation protection levels (as highlighted in Table 2B in Appendix B) for the following dissolved constituents of the 20:1 leachate:
pH: Leachate and paste pH results are above (more alkaline) than ANZECC 2000 GW long term irrigation guidelines (pH 6-8.5)
Nutrients: phosphorus (0.55 mg/L, total as P)
Metals and other elements of environmental interest: aluminium (5.45 mg/L), copper (0.24 mg/L) and iron (4.83 mg/L).
Again, both iron and aluminium may present in the colloidal fraction, or may precipitate from solution and be beneficial for the retardation for metals and metalloids through sorption and co-precipitation reactions. This should be further investigated.
The saturated paste of the residual flotation solid with DI (2:1 liquid to solid ratio, Table 2B in Appendix B) water may be closer to the field scenario. During this test EC was moderate (646 µS/cm), and pH remained alkaline (pH 9.1). Consideration should be given to a modified leaching test with a lower liquid to solid (L:S) ratio in future analysis to reflect the field leaching regime. A lower L:S ratio will require more sample quantity in order to generate sufficient leachate for the analyses.
5.4.2 Hydromet tailings The hydromet tailings are currently anticipated to represent 10% of the deposited flow mass. The hydromet solid represents the output from the ore-enrichment process. Despite the proportionally low content of this stream in the final deposited tailings, the hydromet tailings is a concentrate of mineralisation, thus, its chemistry is likely to influence the geochemical properties of the combined tailings stream.
Solid The NAPP value of the hydromet tailings solid is calculated based on an assumption that sulfur in the sample (4.27 %, by weight, Table 1B in Appendix B) occurs as sulfide that will be acid forming when oxidised. This is generally a conservative assumption and may be corrected by subtraction of the sulfate-sulfur content. The hydromet sample has a high sulfate-sulfur content (SO4, 67 000 mg/kg), equivalent to 2.23% (by weight) from the total sulfur result of 4.27%. After applying this correction, the residual non-sulfate content remains high at 2.04%. A value of 2.04% total sulfur is equivalent to a NAPP of 62.5 kg H2SO4/t which is still net acid forming or potentially acid forming (PAF), and sufficiently high that net acid production should be anticipated from this stream. It is possible that other forms of sulfur contribute to the total sulfur content. However, this testing was not undertaken in this preliminary assessment.
The hydromet sample yielded a circumneutral NAGpH result of pH 6.3. According to AMIRA, this sample would be classified as uncertain (UC). However, samples with a high sulfide and/or metal content can cause interference by various factors including: 1) insufficient peroxide addition to allow oxidation of all sulfides in the sample; and 2) reducing reagent reactivity during the NAG test. This may account for the result of the NAGpH test being higher (less acidic) than expected based on NAPP. The PAF classification is based on the ANC result being below the LOR (<0.5 kg H2SO4/t) and a positive NAPP result (128 kg H2SO4/t or 62.5 kg H2SO4/t when considering sulfide-S only). However, this classification may be revised with additional information on sulfur speciation or on an updated hydromet tailings sample composition.
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Given the very low buffering capacity of the solid sample and the high sulfide sulfur content, it is anticipated that the hydromet sample tested could acidify in time. Based on the preliminary testing, there is little data to base an assessment of the rate of reaction of sulfides upon, other than it appears that there is residual sulfide in the sample following the completion of sample storage, treatment and analysis. Ultimately it is the kinetics of acid producing and acid buffering reactions that determines if a sample will or will not acidify. The reactivity of sulfide minerals acid-buffering minerals and the occurrence or duration of a lag time until the onset of acidic drainage is not known. These characteristics could be better understood by conducting kinetic testing on the hydromet sample and/or on a recombined beneficiation-hydromet tailings sample (refer to recommendations Section 7.0).
Furthermore, when combined with the flotation tailings (90:10 flotation to hydromet ratio) the corrected sulfide- sulfur content of the combined tailings would be estimated to be low, approximately 0.2% (Table 4). The risk of acid formation form the combined tailings is likely low but may not be completely disregarded given the absence of buffering capacity in either tailings stream. Any increase in sulfide content of the mill feed may affect the potential of the tailings to be acid forming, and acidification of the pH in the tailings will enhance mobility of some EEIs.
Paste EC (8240 µS/cm) and sulfate content (67 000 mg/kg) of the hydromet solid sample were notably high. In addition, elevations were noted with respect to DoE 1996 Landfill Class I waste classifications (as highlighted in Table 1B in Appendix B) for arsenic (76.8 mg/kg), chromium (725 mg/kg), lead (37.5 mg/kg), molybdenum (144 mg/kg), nickel (404 mg/kg) and selenium (363 mg/kg).
The elevations for nickel and selenium are particularly high. This is expected given the mineral enrichment in the hydromet sample versus the beneficiation tailings. However, with the exception of arsenic, the same elements are also enriched in the beneficiation tailings but to a lower degree. Therefore, when a weighted average is calculated for the final tailings mixture (as shown in Table 4 on page 10), the content will remain elevated with respect to the guidelines presented for comparison in Table 1B (Appendix B).
Table 4: COI analysis results for the flotation, hydromet solid samples and combined. Sulfide sulfur calculated as balance after subtraction of sulfate sulfur from total sulfur.
COI Unit Flotation Solid
Hydromet Solid
90:10 Ratio Flotation to Hydromet Solid
(calculated)
DoE 1996 Landfill Class I Criteria (total mg/kg)
Total Sulfur %, by weight <0.01% 4.27% 0.44% N/A Sulfide Sulfur % by weight <0.01% 2.04% 0.21% N/A Arsenic mg/kg 1.9 76.8 9.4 14 Chromium mg/kg 118 725 178.7 10 Lead mg/kg 5.6 37.5 8.8 2 Molybdenum mg/kg 16.2 144 29.0 10 Nickel mg/kg 97.8 404 128.4 4 Selenium mg/kg 2 363 38.1 2
Leaching test Leachate from the hydromet solid (20:1, DI water) is circumneutral (pH 7.4) with low acidity (13 mg/L) but is also low in alkalinity (< LOR). The circumneutral pH may reflect short-term buffering from the consumption of immediately available alkalinity.
Elevations were noted with respect to ANZECC and DEC irrigation protection levels (as highlighted in Table 2B in Appendix B) for the following dissolved constituents of the 20:1 leachate:
Nutrients: phosphorus (2.47 mg/L, total as P)
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Metals and other elements of environmental concern: boron (0.7 mg/L), manganese (0.261 mg/L) molybdenum (3.2 mg/L) and nickel (1.02 mg/L).
5.4.3 Treated waste water The treated waste water sample was mildly alkaline (pH 7.6), with 101 mg/L of bicarbonate alkalinity and 19 mg/L of acidity. EC was 13 500 µS/cm. Measured EC, as a proxy for total salinity, was akin to brackish waters. The major contributors to salinity were sulfate and magnesium.
Elevations were noted with respect to ANZECC and DEC irrigation protection levels (as highlighted in Table 3B in Appendix B) for the following dissolved constituents of the flotation tailings process water:
Major ions and nutrients: sodium (221 mg/L), sulfate (13 800 mg/L) chloride (169 mg/L) and phosphorus (5.94 mg/L)
Metals and other elements of environmental interest: arsenic (0.164 mg/L), boron (1.20 mg/L), molybdenum (0.092 mg/L).
Based on the analysis of water quality, these waters may require further treatment prior to environmental discharge or containment within water balance for the mine.
5.5 Potential effects of mixed tailings streams The effect of mixing is estimated based on the properties of two tailings streams analysed independently and mixed in a proportion of 90% flotation tailings and 10% hydromet tailings and excludes the GSW portion of the hydromet sample. The following estimate may differ from the actual properties of the recombined tailing. For this reason, it is strongly recommended that a sample that is representative of the final tailings composition is tested in future work.
The GSW output is anticipated to be comprised of largely gypsum (hydrated calcium sulfate) and to represent 13.4 % of the hydromet sample (1.3 % of mixed tailings). Substances other than gypsum present in this stream could modify the physical and chemical behaviour of the hydromet and overall sample, particularly with respect to leachability of elements.
The flotation tailings is NAF, while the hydromet tailings is likely to be PAF, largely based on its anticipated elevated sulfide content and low acid –buffering capacity. Given the mixing ratio and results of testing carried out in this study, the sulfide-sulfur content of the combined tailings is estimated to be low, approximately 0.2 %. The risk of acid formation form the combined tailings is uncertain; it will depend largely on the reactivity of sulfide minerals and buffering minerals in the tailings and on the actual sulfide content of the ore processed in the mill. Increases in sulfide content of the mill feed may affect the acid potential of the tailings.
The combined tailings are likely to have total elemental concentrations in excess of the DoE Class I landfill waste guidelines for chromium, lead, molybdenum, nickel and selenium (refer to Table 4 in Section 5.4.2). However, the exceedance of leachable ASLP guidelines for a combined sample has not been directly assessed. Based on the leachate analysis of the individual flotation and beneficiation tailings solid and analysis of the flotation process water, mobility of the elements named listed in Table 4 appear to be low. No exceedance with respect to ASLP Class I criteria (Tables 2B and 3B in Appendix B) are shown.
Conservative mixing behaviour cannot be assumed in complex samples, particularly when comparing concentrations, since the volume of liquid in the sample exerts a control on the concentration of a solute. The leachate test is carried out at a standardised solid to liquid ratio of 20:1 to allow comparison with published guidelines. Until the final tailings mixture is tested the environmental standards presented in Tables 1B to 3B (Appendix B) are for comparative purposes only. Other COIs in addition to the elements noted to be in exceedance to the displayed guidelines should remain worthy of consideration as EEIs in future testing.
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June 2014 Report No. 137645044-011-R-Rev2 12
The possibility that seepage and decanted water from the combined tailings may have elevated concentrations of dissolved COIs compared to site groundwater should be considered. The process water quality is anticipated to dominate the initial chemistry of the seepage and decanted water, and there are elevations with respect to ANZECC and DEC irrigation protection guidelines for a number of EEIs (Table 3B in Appendix B). Site specific groundwater data has not been considered here but development of site specific trigger values may be more appropriate in the long term as a comparator for environmental assessments. Based on our current understanding of the process streams and the results of preliminary analysis, it is our opinion that release of tailing contact waters via seepage into underlying groundwater or direct discharge of pond water may not be appropriate to meet with environmental compliance criteria. This is based on the observation that there are elevations in dissolved major ions (chloride and potassium), nutrients (phosphorus), boron, and metals (copper, iron, molybdenum and nickel) with respect to DEC and ANZECC irrigation guidance criteria. This requires further assessment once the final tailings composition is known and more representative leachates can be generated and analysed.
6.0 CONCLUSIONS The flotation tailings, which represent 90% of the combined tailings mass, are non-acid forming (NAF). These tailings have a low sulfur content but have a similarly low acid neutralisation capacity. Some chemical concentrations in the flotation process water exceed comparative acceptable thresholds for the protection of irrigation waters. It is possible that some elements are naturally elevated in the groundwater, and the guideline values (presented in this report for comparison) may not be the most appropriate values to use for the assessment of environmental impact. The development of site-specific trigger values for elements of environmental importance is therefore recommended.
The hydromet tailings, which will represent approximately 10% of the combined tailings mass, have been assessed to be potentially acid forming (PAF). This is based on the mass balance of acid neutralising capacity (ANC) and the maximum potential acidity (MPA), both expressed in units of H2SO4/t. MPA is calculated from the sulfur content (4.27%) and assumes that the sulfur occurs as acid forming pyrite. In reality, some of the measured sulfur is attributable to sulfate and the remaining sulfur may not be pyritic or highly reactive. Based on the sulfate analysis undertaken, approximately half the sulfur content was in the sulfate form. The remaining sulfur (2.04%), if conservatively assumed to be pyrite, has the potential to release an equivalent of 62.5 H2SO4/t. Currently the rate of release of acid is unknown and it will be important to assess whether this will be realised in the long term. The accelerated oxidation test (NAGpH) produced a leachate that was not classified as acidic (pH 6.3). However the attributes of the sample (high sulfur and trace metals) could have influenced the test result by reducing the efficiency of the sulfide oxidation.
Given the absence of significant buffering capacity for either the hydromet or beneficiation sample we can infer that the combined material is unlikely to be able to intrinsically buffer acid if released from the hydromet component of the tailings. Therefore, a conservative classification of PAF is considered appropriate for the combined tailings until further information is available.
Further testing is recommended (Section 7.0) to allow a better understanding of the overall geochemical behaviour of the combined material. To date, the outcomes of testwork do not consider the contribution from the GSW tailings stream, which forms 13% of the hydromet stream and may influence the classification result.
The flotation tailings are classified as NAF, while the hydromet tailings are classified as PAF. Given the mixing ratio (90 % flotation to 10% hydromet solids by dry mass) and results of testing carried out in this study, the sulfide-sulfur content of the combined tailings is estimated to be low, approximately 0.2 %. Low concentrations of sulfur may, however, be significant if there is very limited buffering capacity. Nevertheless, materials with a sulfur concentration of this magnitude are generally considered to represent a low risk. The risk of acid formation from the combined tailings is subject to uncertainty and will depend largely on the relative reactivity of minerals in the tailings and on the actual sulfide content of the ore processed in the mill.
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June 2014 Report No. 137645044-011-R-Rev2 13
The process water and contact water quality of flotation tailings and combined tailings may require control mechanisms (of seepage and/or water quality controls) before discharge. There is an enrichment of several metals of interest with respect to DoE 1996 landfill guidelines in both flotation and hydromet tailings solids for chromium, lead, molybdenum, nickel and selenium. Arsenic is also enriched in the hydromet sample and may be mobilised under reducing conditions. The flotation process water and the leachate derived from the flotation and hydromet solids do not exceed the DoE ASLP Class I waste guidelines for the elements for which the criteria have been defined. Therefore, leachability of these elements appears to be low compared to these criteria.
Other dissolved COIs measured in ASLP leachates (phosphorus, aluminium, boron, copper, iron, manganese, molybdenum, nickel) that are not included in the DoE ASLP Class I waste guidelines do show elevation with respect to published ANZECC/ARMCANZ 2000 or DEC guideline values for the protection of irrigation and livestock drinking water. However, these guidelines may not be directly applicable to the project.
Based on the results of the NAPP assessment, the hydromet tailings may produce acidic leachate if they were to be stored in isolation. However our understanding of the project process is that the hydromet will be co-mingled with the beneficiation tailings and deposited into TSF.
Whether the combined material is PAF or NAF is important in the consideration of tailings management options through life of mine and beyond closure. We advise that additional samples of hydromet tailings and representative samples of combined tailings be tested for acid generation potential and leachability to verify the results presented in this report before final design decisions are made. Currently the main source of low quality contact water is from leaching of the solid phases (particularly the hydromet sample).
Many metals are more mobile under acidic conditions and may be anticipated to show enhanced concentrations in leachates (should acidic conditions develop under the conditions stated above). A change in the pH of the solid/liquid interface may also alter the equilibrium of sorbed species and promote mineral dissolution, releasing COIs into solution.
The leaching conditions approached by the DI leach test do not account for acidity released over time or the higher mobility of metals in acidic conditions. A kinetic or sequential NAG test could provide laboratory data, with a short turnaround time (weeks) to aid this assessment. If a PAF classification is returned, long-term kinetic testing of the final tailings should be considered and initiated at the earliest opportunity. Long-term kinetic testwork (columns or humidity cells) typically require 6-12 months of data to verify sulfide reactivity and oxidation rates.
7.0 RECOMMENDATIONS Based on the outcomes of the geochemical testwork documented in this report we provide the following recommendations pertaining to the geochemical characterisation of the tailings:
Further testing should be undertaken on tailings material produced from the latest batch of beneficiation tailings, since this is likely to be more representative of the final tailings product. This testing should capture the effects arising from variability in the feed ore grade/composition. An assessment of variability may be achieved by capturing samples at the start and end of the pilot plant run. We recommend repeat analysis for key components of interest in new tailings in order to produce a more robust dataset on which to base project decisions.
Further testing should include kinetic or sequential NAG testing of the hydromet and combined tailings as a minimum to verify the assumption that the combined tailings will be non-acid forming (NAF). Long-term kinetic testing of the samples is also recommended to estimate sulfide oxidation rates that might be anticipated in the field.
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June 2014 Report No. 137645044-011-R-Rev2 14
8.0 LIMITATIONS The individual results are from a single sample of each of tailings streams. Analysis of a single sample precludes an assessment of the variability of results that may be anticipated due to sample heterogeneity.
Mass balance calculations based on anticipated flotation and hydromet mixing ratios are presented for discussion. They are based on the assumption that mass balance will be unaffected by mixing effects (described in Section 5.5). Commercially available gypsum was not included in the sample for geochemical testwork. The geochemical properties of the GSW, with respect to content of EEIs are unknown. The GSW may have the potential to include EEIs or other properties that may affect the mobility of these components of interest to this study.
Your attention is drawn to the document ‘Limitations’, which is included in Appendix D of this report. The statements presented in this document are intended to advise you of what your realistic expectations of this report should be, and to present you with recommendations on how to minimise the risks associated with this project. The document is not intended to reduce the level of responsibility accepted by Golder Associates, but rather to ensure that all parties who may rely on this report are aware of the responsibilities each assumes in so doing.
GOLDER ASSOCIATES PTY LTD
Alison Turner Karen Mackenzie Hydrogeochemist Principal Geochemist AT/KLM/hsl
A.B.N. 64 006 107 857 Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation.
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potential.docx
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REFERENCES AMIRA, 2002. ARD Test Handbook. Project P387A Prediction & Kinetic Control of Acid Mine Drainage. AMIRA International Ltd. Melbourne, Australia.
ANZECC/ARMCANZ, 2000. Australian and New Zealand guidelines for fresh and marine water quality.
DoE, 1996. Landfill waste classification and waste definitions 1996. Available online. Accessed on 15 January 2014.
Golder, 2013. Tailings geotechnical and rheological laboratory testing. Browns Range Project. Report number 137645044-005-R-Rev0, dated December 2013. Golder Associates Pty Ltd. Perth.
INAP, 2012. The global acid rock drainage guide (GARD). International Network for Acid Prevention (INAP). Available online. Accessed on 5 February 2014.
NML, 2014a. Sample origin information provided via email correspondence by Enje Catovic and Robin Jones (Northern Minerals Ltd) on 30 January 2014.
NML, 2014b. Revised process information provided via email correspondence by Lisa Chandler (Northern Minerals Ltd) on 23 May 2014.
BROWNS RANGE PROJECT – PRELIMINARY GEOCHEMICAL ASSESSMENT OF TAILINGS
June 2014 Report No. 137645044-011-R-Rev2
APPENDIX A Laboratory Chain of Custody and Certificates of Analysis
False
11 11.00False Environmental
CERTIFICATE OF ANALYSISWork Order : EP1308148 Page : 1 of 10
:Amendment 7:: LaboratoryClient Environmental Division PerthGOLDER ASSOCIATES
: :ContactContact RICARDO FANNI Scott James
:: AddressAddress PO BOX 1914
WEST PERTH WA 6872
10 Hod Way Malaga WA Australia 6090
:: E-mailE-mail [email protected] [email protected]
:: TelephoneTelephone +61 08 9213 7600 +61-8-9209 7655
:: FacsimileFacsimile +61 08 9427 7611 +61-8-9209 7600
:Project Browns Range QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement
:Order number ----
:C-O-C number ---- Date Samples Received : 25-OCT-2013
Sampler : H.C. Issue Date : 31-MAR-2014
Site : Browns Range
4:No. of samples received
Quote number : EP/825/13 V4 4:No. of samples analysed
This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for
release.
This Certificate of Analysis contains the following information:
l General Comments
l Analytical Results
Environmental Division Perth ABN 84 009 936 029 Part of the ALS Group An ALS Limited Company
Address 10 Hod Way Malaga WA Australia 6090 | PHONE +61-8-9209 7655 | Facsimile +61-8-9209 7600
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General Comments
The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house
developed procedures are employed in the absence of documented standards or by client request.
Where moisture determination has been performed, results are reported on a dry weight basis.
Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis.
Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference.
When sampling time information is not provided by the client, sampling dates are shown without a time component. In these instances, the time component has been assumed by the laboratory for processing purposes.
Where a result is required to meet compliance limits the associated uncertainty must be considered. Refer to the ALS Contact for details.
CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society.
LOR = Limit of reporting
^ = This result is computed from individual analyte detections at or above the level of reporting
Key :
07/02/2014: This report has been amended and re-released to allow the reporting of additional analytical data of total sulfur on the soil samples.l
19/02/2014: This report has been amended and re-released to allow the reporting of additional analytical data: total cations in soil.l
28/03/2014: This report has been amended and re-released to allow changes to the analytical datal
ASS: EA013 (ANC) Fizz Rating: 0- None; 1- Slight; 2- Moderate; 3- Strong; 4- Very Strong; 5- Lime.l
EG005T: Metals LOR for particular sample(s) raised due to significant matrix interference.l
Sample EP1308148-004 was filtered at 0.45µm before analysis.l
This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in
compliance with procedures specified in 21 CFR Part 11.
Signatories Accreditation CategoryPosition
Benjamin Nicholson Metals Chemist Perth Inorganics
Canhuang Ke Metals Instrument Chemist Perth Inorganics
Chas Tucker Senior Inorganic Chemist Perth Inorganics
Efua Wilson Metals Chemist Perth Inorganics
Leanne Carey Acid Sulfate Soils Supervisor Perth ASS
SATISH.TRIVEDI 2 IC Acid Sulfate Soils Supervisor Brisbane Acid Sulphate Soils
NATA Accredited Laboratory 825
Accredited for compliance with
ISO/IEC 17025.
Signatories
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Analytical Results
------------137645044 Hydromet
Sample
137645044 Flotation
Tailings
16.3%
Client sample IDSub-Matrix: DI WATER LEACHATE (Matrix: WATER)
------------15-NOV-2013 12:0015-NOV-2013 12:00Client sampling date / time
------------EP1308148-002EP1308148-001UnitLORCAS NumberCompound
EA005P: pH by PC Titrator
pH Value 7.218.49 ---- ---- ----pH Unit0.01----
EA010P: Conductivity by PC Titrator
Electrical Conductivity @ 25°C 373060 ---- ---- ----µS/cm1----
ED037P: Alkalinity by PC Titrator
Hydroxide Alkalinity as CaCO3 <1<1 ---- ---- ----mg/L1DMO-210-001
Carbonate Alkalinity as CaCO3 <12 ---- ---- ----mg/L13812-32-6
Bicarbonate Alkalinity as CaCO3 <120 ---- ---- ----mg/L171-52-3
Total Alkalinity as CaCO3 <121 ---- ---- ----mg/L1----
ED038A: Acidity
Acidity as CaCO3 13<1 ---- ---- ----mg/L1----
ED040T: Total Major Anions
Sulfate as SO4 2- 28502 ---- ---- ----mg/L114808-79-8
Sulfur as S 950<1 ---- ---- ----mg/L163705-05-5
ED040W: Water Leachable Sulfate by ICPAES
Silicon 13.723.1 ---- ---- ----mg/L0.057440-21-3
Sulfur as S 9161 ---- ---- ----mg/L163705-05-5
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA
Sulfate as SO4 - Turbidimetric 30103 ---- ---- ----mg/L114808-79-8
ED045G: Chloride Discrete analyser
Chloride 46 ---- ---- ----mg/L116887-00-6
ED093F: Dissolved Major Cations
Calcium 604<1 ---- ---- ----mg/L17440-70-2
Magnesium 465<1 ---- ---- ----mg/L17439-95-4
Sodium 916 ---- ---- ----mg/L17440-23-5
Potassium 162 ---- ---- ----mg/L17440-09-7
EG020W: Water Leachable Metals by ICP-MS
Aluminium 0.015.45 ---- ---- ----mg/L0.017429-90-5
Antimony 0.0030.001 ---- ---- ----mg/L0.0017440-36-0
Arsenic 0.0660.004 ---- ---- ----mg/L0.0017440-38-2
Beryllium <0.001<0.001 ---- ---- ----mg/L0.0017440-41-7
Barium 0.0460.622 ---- ---- ----mg/L0.0017440-39-3
Bismuth <0.001<0.001 ---- ---- ----mg/L0.0017440-69-9
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Sample
137645044 Flotation
Tailings
16.3%
Client sample IDSub-Matrix: DI WATER LEACHATE (Matrix: WATER)
------------15-NOV-2013 12:0015-NOV-2013 12:00Client sampling date / time
------------EP1308148-002EP1308148-001UnitLORCAS NumberCompound
EG020W: Water Leachable Metals by ICP-MS - Continued
Cerium <0.0010.026 ---- ---- ----mg/L0.0017440-45-1
Caesium 0.0010.001 ---- ---- ----mg/L0.0017440-46-2
Cobalt 0.0210.003 ---- ---- ----mg/L0.0017440-48-4
Copper 0.0020.242 ---- ---- ----mg/L0.0017440-50-8
Indium <0.001<0.001 ---- ---- ----mg/L0.0017440-74-6
Lead <0.0010.028 ---- ---- ----mg/L0.0017439-92-1
Lithium 0.0680.005 ---- ---- ----mg/L0.0017439-93-2
Manganese 0.2610.098 ---- ---- ----mg/L0.0017439-96-5
Molybdenum 3.200.004 ---- ---- ----mg/L0.0017439-98-7
Nickel 1.020.050 ---- ---- ----mg/L0.0017440-02-0
Rubidium 0.0360.009 ---- ---- ----mg/L0.0017440-17-7
Selenium <0.01<0.01 ---- ---- ----mg/L0.017782-49-2
Strontium 6.020.044 ---- ---- ----mg/L0.0017440-24-6
Thallium <0.001<0.001 ---- ---- ----mg/L0.0017440-28-0
Thorium <0.0010.007 ---- ---- ----mg/L0.0017440-29-1
Tin <0.0010.001 ---- ---- ----mg/L0.0017440-31-5
Titanium <0.01<0.01 ---- ---- ----mg/L0.017440-32-6
Uranium <0.0010.005 ---- ---- ----mg/L0.0017440-61-1
Zinc <0.0050.115 ---- ---- ----mg/L0.0057440-66-6
Boron 0.700.11 ---- ---- ----mg/L0.057440-42-8
Iron <0.054.83 ---- ---- ----mg/L0.057439-89-6
EG035W: Water Leachable Mercury by FIMS
Mercury ----<0.0001 ---- ---- ----mg/L0.00017439-97-6
EK057G: Nitrite as N by Discrete Analyser
Nitrite as N <0.01<0.01 ---- ---- ----mg/L0.01----
EK058G: Nitrate as N by Discrete Analyser
Nitrate as N 0.030.01 ---- ---- ----mg/L0.0114797-55-8
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser
Nitrite + Nitrate as N 0.030.01 ---- ---- ----mg/L0.01----
EK067G: Total Phosphorus as P by Discrete Analyser
Total Phosphorus as P 2.470.55 ---- ---- ----mg/L0.01----
EN055: Ionic Balance
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Sample
137645044 Flotation
Tailings
16.3%
Client sample IDSub-Matrix: DI WATER LEACHATE (Matrix: WATER)
------------15-NOV-2013 12:0015-NOV-2013 12:00Client sampling date / time
------------EP1308148-002EP1308148-001UnitLORCAS NumberCompound
EN055: Ionic Balance - Continued
Total Anions 62.80.65 ---- ---- ----meq/L0.01----
Total Cations 69.20.75 ---- ---- ----meq/L0.01----
Ionic Balance 4.88---- ---- ---- ----%0.01----
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------------137645044 Hydromet
Sample
137645044 Flotation
Tailings
16.3%
Client sample IDSub-Matrix: SOIL (Matrix: SOIL)
------------25-OCT-2013 10:0025-OCT-2013 10:00Client sampling date / time
------------EP1308148-002EP1308148-001UnitLORCAS NumberCompound
EA009: Nett Acid Production Potential
Net Acid Production Potential 128<0.5 ---- ---- ----kg H2SO4/t0.5----
EA011: Net Acid Generation
pH (OX) 6.36.1 ---- ---- ----pH Unit0.1----
NAG (pH 4.5) <0.1<0.1 ---- ---- ----kg H2SO4/t0.1----
NAG (pH 7.0) 1.36.3 ---- ---- ----kg H2SO4/t0.1----
EA013: Acid Neutralising Capacity
ANC as H2SO4 3.0<0.5 ---- ---- ----kg H2SO4
equiv./t
0.5----
ANC as CaCO3 0.3<0.1 ---- ---- ----% CaCO30.1----
Fizz Rating 00 ---- ---- ----Fizz Unit0----
EA031: pH (saturated paste)
pH (Saturated Paste) 6.98.9 ---- ---- ----pH Unit0.1----
EA032: Electrical Conductivity (saturated paste)
Electrical Conductivity (Saturated Paste) 8240646 ---- ---- ----µS/cm1----
EA055: Moisture Content
Moisture Content (dried @ 103°C) 4.544.7 ---- ---- ----%1.0----
ED040: Sulfur as SO4 2-
Sulfate as SO4 2- 67000130 ---- ---- ----mg/kg10014808-79-8
ED042T: Total Sulfur by LECO
Sulfur - Total as S (LECO) 4.27<0.01 ---- ---- ----%0.01----
ED093T: Total Major Cations
Sodium 210860 ---- ---- ----mg/kg507440-23-5
Potassium 5101000 ---- ---- ----mg/kg507440-09-7
Calcium 32400540 ---- ---- ----mg/kg507440-70-2
Magnesium 9440370 ---- ---- ----mg/kg507439-95-4
EG005T: Total Metals by ICP-AES
Aluminium 30005190 ---- ---- ----mg/kg507429-90-5
Boron <50<50 ---- ---- ----mg/kg507440-42-8
Iron 1820041200 ---- ---- ----mg/kg507439-89-6
EG020T: Total Metals by ICP-MS
Arsenic 76.81.9 ---- ---- ----mg/kg0.17440-38-2
Selenium 3632 ---- ---- ----mg/kg17782-49-2
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------------137645044 Hydromet
Sample
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Tailings
16.3%
Client sample IDSub-Matrix: SOIL (Matrix: SOIL)
------------25-OCT-2013 10:0025-OCT-2013 10:00Client sampling date / time
------------EP1308148-002EP1308148-001UnitLORCAS NumberCompound
EG020T: Total Metals by ICP-MS - Continued
Silver 4.2<0.1 ---- ---- ----mg/kg0.17440-22-4
Barium 38.662.4 ---- ---- ----mg/kg0.17440-39-3
Thallium <0.1<0.1 ---- ---- ----mg/kg0.17440-28-0
Beryllium 0.20.2 ---- ---- ----mg/kg0.17440-41-7
Cadmium <0.1<0.1 ---- ---- ----mg/kg0.17440-43-9
Bismuth 2.10.1 ---- ---- ----mg/kg0.17440-69-9
Cobalt 14.02.3 ---- ---- ----mg/kg0.17440-48-4
Chromium 725118 ---- ---- ----mg/kg0.17440-47-3
Copper 61.343.9 ---- ---- ----mg/kg0.17440-50-8
Thorium 1453.0 ---- ---- ----mg/kg0.17440-29-1
Manganese 23.226.5 ---- ---- ----mg/kg0.17439-96-5
Strontium 177013.7 ---- ---- ----mg/kg0.17440-24-6
Molybdenum 14416.2 ---- ---- ----mg/kg0.17439-98-7
Nickel 40497.8 ---- ---- ----mg/kg0.17440-02-0
Lead 37.55.6 ---- ---- ----mg/kg0.17439-92-1
Antimony 2.00.2 ---- ---- ----mg/kg0.17440-36-0
Uranium 1412.3 ---- ---- ----mg/kg0.17440-61-1
Zinc 15.110.9 ---- ---- ----mg/kg0.57440-66-6
Lithium 2.80.6 ---- ---- ----mg/kg0.17439-93-2
Vanadium 23 ---- ---- ----mg/kg17440-62-2
Tin 10.42.0 ---- ---- ----mg/kg0.17440-31-5
EG035T: Total Recoverable Mercury by FIMS
Mercury <0.1<0.1 ---- ---- ----mg/kg0.17439-97-6
EN60: Bottle Leaching Procedure
Final pH 7.49.4 ---- ---- ----pH Unit0.1----
8 of 10:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Analytical Results
------------137645044 Flotation
Tailings
16.3%
137645044 Treated
Waste Water
Client sample IDSub-Matrix: WATER (Matrix: WATER)
------------25-OCT-2013 10:0025-OCT-2013 10:00Client sampling date / time
------------EP1308148-004EP1308148-003UnitLORCAS NumberCompound
EA005P: pH by PC Titrator
pH Value 8.077.66 ---- ---- ----pH Unit0.01----
EA010P: Conductivity by PC Titrator
Electrical Conductivity @ 25°C 123013500 ---- ---- ----µS/cm1----
ED037P: Alkalinity by PC Titrator
Hydroxide Alkalinity as CaCO3 <1<1 ---- ---- ----mg/L1DMO-210-001
Carbonate Alkalinity as CaCO3 <1<1 ---- ---- ----mg/L13812-32-6
Bicarbonate Alkalinity as CaCO3 248101 ---- ---- ----mg/L171-52-3
Total Alkalinity as CaCO3 248101 ---- ---- ----mg/L1----
ED038A: Acidity
Acidity as CaCO3 5719 ---- ---- ----mg/L1----
ED040F: Dissolved Major Anions
Sulfate as SO4 2- 6813800 ---- ---- ----mg/L114808-79-8
Sulfur as S 224590 ---- ---- ----mg/L163705-05-5
Silicon as SiO2 1629.3 ---- ---- ----mg/L0.114464-46-1
Silicon 75.84.36 ---- ---- ----mg/L0.057440-21-3
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA
Sulfate as SO4 - Turbidimetric 7214300 ---- ---- ----mg/L114808-79-8
ED045G: Chloride Discrete analyser
Chloride 215169 ---- ---- ----mg/L116887-00-6
ED093F: Dissolved Major Cations
Calcium 4511 ---- ---- ----mg/L17440-70-2
Magnesium 33460 ---- ---- ----mg/L17439-95-4
Sodium 256221 ---- ---- ----mg/L17440-23-5
Potassium 16211 ---- ---- ----mg/L17440-09-7
EG020F: Dissolved Metals by ICP-MS
Aluminium 2.380.03 ---- ---- ----mg/L0.017429-90-5
Dysprosium 0.053<0.001 ---- ---- ----mg/L0.0017429-91-6
Silver <0.001<0.001 ---- ---- ----mg/L0.0017440-22-4
Arsenic 0.0120.164 ---- ---- ----mg/L0.0017440-38-2
Bismuth <0.001<0.001 ---- ---- ----mg/L0.0017440-69-9
Erbium 0.031<0.001 ---- ---- ----mg/L0.0017440-52-0
Boron 0.131.20 ---- ---- ----mg/L0.057440-42-8
9 of 10:Page
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:Client
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GOLDER ASSOCIATES
Browns Range:Project
Analytical Results
------------137645044 Flotation
Tailings
16.3%
137645044 Treated
Waste Water
Client sample IDSub-Matrix: WATER (Matrix: WATER)
------------25-OCT-2013 10:0025-OCT-2013 10:00Client sampling date / time
------------EP1308148-004EP1308148-003UnitLORCAS NumberCompound
EG020F: Dissolved Metals by ICP-MS - Continued
Europium <0.001<0.001 ---- ---- ----mg/L0.0017440-53-1
Strontium 0.0942.65 ---- ---- ----mg/L0.0017440-24-6
Barium 0.3740.008 ---- ---- ----mg/L0.0017440-39-3
Gadolinium 0.035<0.001 ---- ---- ----mg/L0.0017440-54-2
Titanium 0.020.01 ---- ---- ----mg/L0.017440-32-6
Beryllium <0.001<0.001 ---- ---- ----mg/L0.0017440-41-7
Gallium <0.001<0.001 ---- ---- ----mg/L0.0017440-55-3
Cadmium 0.00010.0003 ---- ---- ----mg/L0.00017440-43-9
Hafnium <0.01<0.01 ---- ---- ----mg/L0.017440-58-6
Tellurium <0.005<0.005 ---- ---- ----mg/L0.00522541-49-7
Cobalt 0.0050.008 ---- ---- ----mg/L0.0017440-48-4
Holmium 0.011<0.001 ---- ---- ----mg/L0.0017440-60-0
Uranium 0.007<0.001 ---- ---- ----mg/L0.0017440-61-1
Caesium <0.0010.010 ---- ---- ----mg/L0.0017440-46-2
Chromium 0.0180.038 ---- ---- ----mg/L0.0017440-47-3
Indium <0.001<0.001 ---- ---- ----mg/L0.0017440-74-6
Copper 0.3340.012 ---- ---- ----mg/L0.0017440-50-8
Lanthanum 0.020<0.001 ---- ---- ----mg/L0.0017439-91-0
Rubidium 0.0050.379 ---- ---- ----mg/L0.0017440-17-7
Lithium 0.0110.992 ---- ---- ----mg/L0.0017439-93-2
Lutetium 0.004<0.001 ---- ---- ----mg/L0.0017439-94-3
Thorium 0.002<0.001 ---- ---- ----mg/L0.0017440-29-1
Cerium 0.039<0.001 ---- ---- ----mg/L0.0017440-45-1
Manganese 0.4330.192 ---- ---- ----mg/L0.0017439-96-5
Neodymium 0.058<0.001 ---- ---- ----mg/L0.0017440-00-8
Molybdenum 0.0610.092 ---- ---- ----mg/L0.0017439-98-7
Praseodymium 0.010<0.001 ---- ---- ----mg/L0.0017440-10-0
Nickel 0.0710.212 ---- ---- ----mg/L0.0017440-02-0
Samarium 0.019<0.001 ---- ---- ----mg/L0.0017440-19-9
Lead 0.030<0.001 ---- ---- ----mg/L0.0017439-92-1
Terbium 0.008<0.001 ---- ---- ----mg/L0.0017440-27-9
Antimony 0.002<0.001 ---- ---- ----mg/L0.0017440-36-0
Thulium 0.004<0.001 ---- ---- ----mg/L0.0017440-30-4
10 of 10:Page
Work Order :
:Client
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GOLDER ASSOCIATES
Browns Range:Project
Analytical Results
------------137645044 Flotation
Tailings
16.3%
137645044 Treated
Waste Water
Client sample IDSub-Matrix: WATER (Matrix: WATER)
------------25-OCT-2013 10:0025-OCT-2013 10:00Client sampling date / time
------------EP1308148-004EP1308148-003UnitLORCAS NumberCompound
EG020F: Dissolved Metals by ICP-MS - Continued
Selenium <0.01<0.01 ---- ---- ----mg/L0.017782-49-2
Ytterbium 0.024<0.001 ---- ---- ----mg/L0.0017440-64-4
Tin 0.002<0.001 ---- ---- ----mg/L0.0017440-31-5
Yttrium 0.238<0.001 ---- ---- ----mg/L0.0017440-65-5
Thallium <0.001<0.001 ---- ---- ----mg/L0.0017440-28-0
Zirconium <0.005<0.005 ---- ---- ----mg/L0.0057440-67-7
Vanadium <0.010.06 ---- ---- ----mg/L0.017440-62-2
Zinc 0.1040.006 ---- ---- ----mg/L0.0057440-66-6
Iron 3.20<0.05 ---- ---- ----mg/L0.057439-89-6
EK057G: Nitrite as N by Discrete Analyser
Nitrite as N <0.01<0.01 ---- ---- ----mg/L0.01----
EK058G: Nitrate as N by Discrete Analyser
Nitrate as N <0.010.22 ---- ---- ----mg/L0.0114797-55-8
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser
Nitrite + Nitrate as N <0.010.22 ---- ---- ----mg/L0.01----
EK067G: Total Phosphorus as P by Discrete Analyser
Total Phosphorus as P 1.455.94 ---- ---- ----mg/L0.01----
EN055: Ionic Balance
Total Anions 12.5296 ---- ---- ----meq/L0.01----
Total Cations 12.0325 ---- ---- ----meq/L0.01----
Ionic Balance 2.194.66 ---- ---- ----%0.01----
False 11 11.00False
Environmental
QUALITY CONTROL REPORTWork Order : EP1308148 Page : 1 of 27
:Amendment 7
:: LaboratoryClient Environmental Division PerthGOLDER ASSOCIATES
: :ContactContact RICARDO FANNI Scott James
:: AddressAddress PO BOX 1914
WEST PERTH WA 6872
10 Hod Way Malaga WA Australia 6090
:: E-mailE-mail [email protected] [email protected]
:: TelephoneTelephone +61 08 9213 7600 +61-8-9209 7655
:: FacsimileFacsimile +61 08 9427 7611 +61-8-9209 7600
:Project Browns Range QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement
Site : Browns Range
:C-O-C number ---- Date Samples Received : 25-OCT-2013
Sampler : H.C. Issue Date : 31-MAR-2014
:Order number ----
4:No. of samples received
Quote number : EP/825/13 V4 4:No. of samples analysed
This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for
release.
This Quality Control Report contains the following information:
l Laboratory Duplicate (DUP) Report; Relative Percentage Difference (RPD) and Acceptance Limits
l Method Blank (MB) and Laboratory Control Spike (LCS) Report ; Recovery and Acceptance Limits
l Matrix Spike (MS) Report; Recovery and Acceptance Limits
Address 10 Hod Way Malaga WA Australia 6090 | PHONE +61-8-9209 7655 | Facsimile +61-8-9209 7600
Environmental Division Perth ABN 84 009 936 029 Part of the ALS Group An ALS Limited Company
2 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
General Comments
The analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the USEPA, APHA, AS and NEPM. In house
developed procedures are employed in the absence of documented standards or by client request.
Where moisture determination has been performed, results are reported on a dry weight basis.
Where a reported less than (<) result is higher than the LOR, this may be due to primary sample extract/digestate dilution and/or insufficient sample for analysis.
Where the LOR of a reported result differs from standard LOR, this may be due to high moisture content, insufficient sample (reduced weight employed) or matrix interference.
Anonymous = Refers to samples which are not specifically part of this work order but formed part of the QC process lot
CAS Number = CAS registry number from database maintained by Chemical Abstracts Services. The Chemical Abstracts Service is a division of the American Chemical Society.
LOR = Limit of reporting
RPD = Relative Percentage Difference
# = Indicates failed QC
Key :
This document has been electronically signed by the authorized signatories indicated below. Electronic signing has been carried out in compliance with
procedures specified in 21 CFR Part 11.
Signatories Accreditation CategoryPosition
Benjamin Nicholson Metals Chemist Perth Inorganics
Canhuang Ke Metals Instrument Chemist Perth Inorganics
Chas Tucker Senior Inorganic Chemist Perth Inorganics
Efua Wilson Metals Chemist Perth Inorganics
Leanne Carey Acid Sulfate Soils Supervisor Perth ASS
SATISH.TRIVEDI 2 IC Acid Sulfate Soils Supervisor Brisbane Acid Sulphate Soils
SignatoriesNATA Accredited
Laboratory 825
Accredited for
compliance with
ISO/IEC 17025.
3 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Laboratory Duplicate (DUP) Report
The quality control term Laboratory Duplicate refers to a randomly selected intralaboratory split. Laboratory duplicates provide information regarding method precision and sample heterogeneity. The permitted ranges
for the Relative Percent Deviation (RPD) of Laboratory Duplicates are specified in ALS Method QWI -EN/38 and are dependent on the magnitude of results in comparison to the level of reporting: Result < 10 times LOR:-
No Limit; Result between 10 and 20 times LOR:- 0% - 50%; Result > 20 times LOR:- 0% - 20%.
Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EA011: Net Acid Generation (QC Lot: 3137387)
EA011: NAG (pH 4.5) ---- 0.1 kg H2SO4/t <0.1 <0.1 0.0 No Limit137645044 Hydromet
Sample
EP1308148-002
EA011: NAG (pH 7.0) ---- 0.1 kg H2SO4/t 1.3 1.3 0.0 0% - 50%
EA011: pH (OX) ---- 0.1 pH Unit 6.3 6.4 0.0 0% - 20%
EA011: Net Acid Generation (QC Lot: 3145058)
EA011: NAG (pH 4.5) ---- 0.1 kg H2SO4/t <0.1 <0.1 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EA011: NAG (pH 7.0) ---- 0.1 kg H2SO4/t 6.3 6.5 3.1 0% - 20%
EA011: pH (OX) ---- 0.1 pH Unit 6.1 6.0 0.0 0% - 20%
EA013: Acid Neutralising Capacity (QC Lot: 3137386)
EA013: ANC as H2SO4 ---- 0.5 kg H2SO4 equ 3.0 3.0 0.0 No Limit137645044 Hydromet
Sample
EP1308148-002
EA013: Acid Neutralising Capacity (QC Lot: 3145057)
EA013: ANC as H2SO4 ---- 0.5 kg H2SO4 equ <0.5 <0.5 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EA031: pH (saturated paste) (QC Lot: 3153648)
EA031: pH (Saturated Paste) ---- 0.1 pH Unit 6.9 6.9 0.0 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EA032: Electrical Conductivity (saturated paste) (QC Lot: 3153649)
EA032: Electrical Conductivity (Saturated Paste) ---- 1 µS/cm 8240 8130 1.3 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EA055: Moisture Content (QC Lot: 3147048)
EA055-103: Moisture Content (dried @ 103°C) ---- 1.0 % 4.4 4.4 0.0 No Limit137645044 Hydromet
Sample
EP1308148-002
ED040T : Total Sulfate by ICPAES (QC Lot: 3168841)
ED040T: Sulfate as SO4 2- 14808-79-8 100 mg/kg 130 120 10.3 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED042T: Total Sulfur by LECO (QC Lot: 3155740)
ED042T: Sulfur - Total as S (LECO) ---- 0.01 % <0.01 0.01 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED093T: Total Major Cations (QC Lot: 3303399)
ED093T: Sodium 7440-23-5 50 mg/kg 210 230 9.7 No Limit137645044 Hydromet
Sample
EP1308148-002
ED093T: Potassium 7440-09-7 50 mg/kg 510 560 8.9 0% - 50%
ED093T: Calcium 7440-70-2 50 mg/kg 32400 34900 7.7 0% - 20%
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GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
ED093T: Total Major Cations (QC Lot: 3303399) - continued
ED093T: Magnesium 7439-95-4 50 mg/kg 9440 10400 9.6 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EG005T: Total Metals by ICP-AES (QC Lot: 3155706)
EG005T: Aluminium 7429-90-5 50 mg/kg 3000 3100 3.1 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EG005T: Boron 7440-42-8 50 mg/kg <50 <50 0.0 No Limit
EG005T: Iron 7439-89-6 50 mg/kg 18200 16600 8.7 0% - 20%
EG020T: Total Metals by ICP-MS (QC Lot: 3140536)
EG020X-T: Arsenic 7440-38-2 0.1 mg/kg 76.8 75.5 1.7 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EG020X-T: Barium 7440-39-3 0.1 mg/kg 38.6 38.9 0.8 0% - 20%
EG020X-T: Beryllium 7440-41-7 0.1 mg/kg 0.2 0.2 0.0 No Limit
EG020X-T: Cobalt 7440-48-4 0.1 mg/kg 14.0 13.9 0.0 0% - 20%
EG020X-T: Chromium 7440-47-3 0.1 mg/kg 725 770 6.1 0% - 20%
EG020X-T: Copper 7440-50-8 0.1 mg/kg 61.3 64.4 4.9 0% - 20%
EG020X-T: Manganese 7439-96-5 0.1 mg/kg 23.2 20.3 13.5 0% - 20%
EG020X-T: Molybdenum 7439-98-7 0.1 mg/kg 144 171 16.8 0% - 20%
EG020X-T: Nickel 7440-02-0 0.1 mg/kg 404 387 4.1 0% - 20%
EG020X-T: Lead 7439-92-1 0.1 mg/kg 37.5 36.0 3.8 0% - 20%
EG020X-T: Antimony 7440-36-0 0.1 mg/kg 2.0 2.3 12.5 0% - 20%
EG020X-T: Uranium 7440-61-1 0.1 mg/kg 141 171 19.4 0% - 20%
EG020X-T: Lithium 7439-93-2 0.1 mg/kg 2.8 0.5 # 141 0% - 20%
EG020X-T: Tin 7440-31-5 0.1 mg/kg 10.4 11.2 7.2 0% - 20%
EG020X-T: Zinc 7440-66-6 0.5 mg/kg 15.1 16.9 11.0 0% - 20%
EG020X-T: Vanadium 7440-62-2 1 mg/kg 2 2 0.0 No Limit
EG020T: Total Metals by ICP-MS (QC Lot: 3140537)
EG020Y-T: Thallium 7440-28-0 0.1 mg/kg <0.1 <0.1 0.0 No Limit137645044 Hydromet
Sample
EP1308148-002
EG020Y-T: Cadmium 7440-43-9 0.1 mg/kg <0.1 <0.1 0.0 No Limit
EG020Y-T: Bismuth 7440-69-9 0.1 mg/kg 2.1 2.4 16.3 0% - 20%
EG020Y-T: Thorium 7440-29-1 0.1 mg/kg 145 168 14.5 0% - 20%
EG020Y-T: Selenium 7782-49-2 1 mg/kg 363 403 10.5 0% - 20%
EG020T: Total Metals by ICP-MS (QC Lot: 3140538)
EG020Z-T: Silver 7440-22-4 0.1 mg/kg 4.2 4.7 10.5 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EG020T: Total Metals by ICP-MS (QC Lot: 3155707)
EG020X-T: Arsenic 7440-38-2 0.1 mg/kg ---- 67.6 # Not
Determined
0% - 20%137645044 Hydromet
Sample
EP1308148-002
EG020X-T: Barium 7440-39-3 0.1 mg/kg ---- 36.0 # Not
Determined
0% - 20%
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GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EG020T: Total Metals by ICP-MS (QC Lot: 3155707) - continued
EG020X-T: Beryllium 7440-41-7 0.1 mg/kg ---- 0.3 # Not
Determined
No Limit137645044 Hydromet
Sample
EP1308148-002
EG020X-T: Cobalt 7440-48-4 0.1 mg/kg ---- 15.2 # Not
Determined
0% - 20%
EG020X-T: Chromium 7440-47-3 0.1 mg/kg ---- 215 # Not
Determined
0% - 20%
EG020X-T: Copper 7440-50-8 0.1 mg/kg ---- 73.0 # Not
Determined
0% - 20%
EG020X-T: Manganese 7439-96-5 0.1 mg/kg ---- 24.9 # Not
Determined
0% - 20%
EG020X-T: Molybdenum 7439-98-7 0.1 mg/kg ---- 132 # Not
Determined
0% - 20%
EG020X-T: Nickel 7440-02-0 0.1 mg/kg ---- 401 # Not
Determined
0% - 20%
EG020X-T: Lead 7439-92-1 0.1 mg/kg ---- 41.5 # Not
Determined
0% - 20%
EG020X-T: Antimony 7440-36-0 0.1 mg/kg ---- 1.9 # Not
Determined
0% - 50%
EG020X-T: Uranium 7440-61-1 0.1 mg/kg ---- 139 # Not
Determined
0% - 20%
EG020X-T: Lithium 7439-93-2 0.1 mg/kg ---- 0.8 # Not
Determined
No Limit
EG020X-T: Tin 7440-31-5 0.1 mg/kg ---- 8.4 # Not
Determined
0% - 20%
EG020X-T: Zinc 7440-66-6 0.5 mg/kg ---- 16.9 # Not
Determined
0% - 20%
EG020X-T: Vanadium 7440-62-2 1 mg/kg ---- 2 # Not
Determined
No Limit
EG020T: Total Metals by ICP-MS (QC Lot: 3155708)
EG020Y-T: Thallium 7440-28-0 0.1 mg/kg ---- <0.1 # Not
Determined
No Limit137645044 Hydromet
Sample
EP1308148-002
EG020Y-T: Cadmium 7440-43-9 0.1 mg/kg ---- <0.1 # Not
Determined
No Limit
EG020Y-T: Bismuth 7440-69-9 0.1 mg/kg ---- 2.4 # Not
Determined
0% - 20%
EG020Y-T: Thorium 7440-29-1 0.1 mg/kg ---- 144 # Not
Determined
0% - 20%
EG020Y-T: Selenium 7782-49-2 1 mg/kg ---- 377 # Not
Determined
0% - 20%
EG020T: Total Metals by ICP-MS (QC Lot: 3155709)
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GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: SOIL Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EG020T: Total Metals by ICP-MS (QC Lot: 3155709) - continued
EG020Z-T: Silver 7440-22-4 0.1 mg/kg ---- 4.2 # Not
Determined
0% - 20%137645044 Hydromet
Sample
EP1308148-002
EG035T: Total Recoverable Mercury by FIMS (QC Lot: 3166589)
EG035T: Mercury 7439-97-6 0.1 mg/kg <0.1 <0.1 0.0 No Limit137645044 Hydromet
Sample
EP1308148-002
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EA005P: pH by PC Titrator (QC Lot: 3136280)
EA005-P: pH Value ---- 0.01 pH Unit 7.66 7.68 0.3 0% - 20%137645044 Treated Waste
Water
EP1308148-003
EA005-P: pH Value ---- 0.01 pH Unit 8.38 8.43 0.6 0% - 20%AnonymousEP1308219-001
EA005P: pH by PC Titrator (QC Lot: 3147664)
EA005-P: pH Value ---- 0.01 pH Unit 7.53 7.56 0.4 0% - 20%AnonymousEP1308379-001
EA005-P: pH Value ---- 0.01 pH Unit 7.84 7.85 0.1 0% - 20%AnonymousEP1308397-001
EA005P: pH by PC Titrator (QC Lot: 3166307)
EA005-P: pH Value ---- 0.01 pH Unit 7.21 7.17 0.6 0% - 20%137645044 Hydromet
Sample
EP1308148-002
EA010P: Conductivity by PC Titrator (QC Lot: 3136278)
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm 13500 13800 1.9 0% - 20%137645044 Treated Waste
Water
EP1308148-003
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm 13100 13300 1.4 0% - 20%AnonymousEP1308230-010
EA010P: Conductivity by PC Titrator (QC Lot: 3147663)
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm 12400 12500 0.5 0% - 20%AnonymousEP1308379-001
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm 2380 2360 0.4 0% - 20%AnonymousEP1308397-001
EA010P: Conductivity by PC Titrator (QC Lot: 3166306)
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm 3730 3790 1.5 0% - 20%137645044 Hydromet
Sample
EP1308148-002
ED037P: Alkalinity by PC Titrator (QC Lot: 3136276)
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-001 1 mg/L <1 <1 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 <1 0.0 No Limit
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L 101 101 0.0 0% - 20%
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L 101 101 0.0 0% - 20%
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-001 1 mg/L <1 <1 0.0 No LimitAnonymousEP1308230-010
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 <1 0.0 No Limit
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L 454 457 0.6 0% - 20%
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L 454 457 0.6 0% - 20%
ED037P: Alkalinity by PC Titrator (QC Lot: 3147662)
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-001 1 mg/L <1 <1 0.0 No LimitAnonymousEP1308379-001
7 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
ED037P: Alkalinity by PC Titrator (QC Lot: 3147662) - continued
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 <1 0.0 No LimitAnonymousEP1308379-001
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L 184 187 1.4 0% - 20%
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L 184 187 1.4 0% - 20%
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-001 1 mg/L <1 <1 0.0 No LimitAnonymousEP1308397-001
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 <1 0.0 No Limit
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L 541 546 0.8 0% - 20%
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L 541 546 0.8 0% - 20%
ED037P: Alkalinity by PC Titrator (QC Lot: 3166305)
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-001 1 mg/L <1 <1 0.0 No Limit137645044 Hydromet
Sample
EP1308148-002
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 <1 0.0 No Limit
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L <1 <1 0.0 No Limit
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L <1 <1 0.0 No Limit
ED038A: Acidity (QC Lot: 3139439)
ED038: Acidity as CaCO3 ---- 1 mg/L 19 19 0.0 0% - 50%137645044 Treated Waste
Water
EP1308148-003
ED038: Acidity as CaCO3 ---- 1 mg/L 71 71 0.0 0% - 20%AnonymousEP1308291-001
ED038A: Acidity (QC Lot: 3147539)
ED038: Acidity as CaCO3 ---- 1 mg/L 74 78 5.1 0% - 20%137645044 Treated Waste
Water
EP1308148-003
ED038: Acidity as CaCO3 ---- 1 mg/L 25 24 8.0 0% - 20%AnonymousEP1308423-001
ED038A: Acidity (QC Lot: 3160815)
ED038: Acidity as CaCO3 ---- 1 mg/L <1 <1 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED040F: Dissolved Major Anions (QC Lot: 3136312)
ED040F: Silicon 7440-21-3 0.05 mg/L 4.36 4.38 0.4 No Limit137645044 Treated Waste
Water
EP1308148-003
ED040F: Silicon as SiO2 14464-46-1 0.1 mg/L 9.3 9.4 0.0 No Limit
ED040F: Sulfate as SO4 2- 14808-79-8 1 mg/L 13800 13800 0.1 0% - 20%
ED040F: Sulfur as S 63705-05-5 1 mg/L 4590 4580 0.1 0% - 20%
ED040F: Dissolved Major Anions (QC Lot: 3145403)
ED040F: Silicon 7440-21-3 0.05 mg/L 75.8 78.4 3.4 0% - 20%137645044 Flotation
Tailings 16.3%
EP1308148-004
ED040F: Silicon as SiO2 14464-46-1 0.1 mg/L 162 168 3.4 0% - 20%
ED040F: Sulfate as SO4 2- 14808-79-8 1 mg/L 68 65 3.7 No Limit
ED040F: Sulfur as S 63705-05-5 1 mg/L 22 22 0.0 No Limit
ED040T: Total Major Anions (QC Lot: 3161250)
ED040T: Sulfate as SO4 2- 14808-79-8 1 mg/L 2 2 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
8 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
ED040T: Total Major Anions (QC Lot: 3161250) - continued
ED040T: Sulfur as S 63705-05-5 1 mg/L <1 <1 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED040W: Water Leachable Sulfate by ICPAES (QC Lot: 3160806)
ED040W: Silicon 7440-21-3 0.05 mg/L 23.1 23.2 0.3 0% - 20%137645044 Flotation
Tailings 16.3%
EP1308148-001
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QC Lot: 3145407)
ED041G: Sulfate as SO4 - Turbidimetric 14808-79-8 1 mg/L 72 72 0.0 0% - 20%137645044 Flotation
Tailings 16.3%
EP1308148-004
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QC Lot: 3161921)
ED041G: Sulfate as SO4 - Turbidimetric 14808-79-8 1 mg/L 3 3 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED041G: Sulfate as SO4 - Turbidimetric 14808-79-8 1 mg/L 50 50 0.0 0% - 20%AnonymousEP1308704-001
ED045G: Chloride Discrete analyser (QC Lot: 3136315)
ED045G: Chloride 16887-00-6 1 mg/L 169 168 0.0 0% - 20%137645044 Treated Waste
Water
EP1308148-003
ED045G: Chloride Discrete analyser (QC Lot: 3145406)
ED045G: Chloride 16887-00-6 1 mg/L 215 215 0.0 0% - 20%137645044 Flotation
Tailings 16.3%
EP1308148-004
ED045G: Chloride Discrete analyser (QC Lot: 3161920)
ED045G: Chloride 16887-00-6 1 mg/L 6 6 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED093F: Dissolved Major Cations (QC Lot: 3136313)
ED093F: Calcium 7440-70-2 1 mg/L 511 503 1.6 0% - 20%137645044 Treated Waste
Water
EP1308148-003
ED093F: Magnesium 7439-95-4 1 mg/L 3460 3460 0.0 0% - 20%
ED093F: Sodium 7440-23-5 1 mg/L 221 220 0.0 0% - 20%
ED093F: Potassium 7440-09-7 1 mg/L 211 210 0.0 0% - 20%
ED093F: Dissolved Major Cations (QC Lot: 3145404)
ED093F: Calcium 7440-70-2 1 mg/L 4 4 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-004
ED093F: Magnesium 7439-95-4 1 mg/L 3 4 0.0 No Limit
ED093F: Sodium 7440-23-5 1 mg/L 256 253 1.2 0% - 20%
ED093F: Potassium 7440-09-7 1 mg/L 16 15 0.0 No Limit
ED093F: Dissolved Major Cations (QC Lot: 3161918)
ED093F: Calcium 7440-70-2 1 mg/L <1 <1 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
ED093F: Magnesium 7439-95-4 1 mg/L <1 <1 0.0 No Limit
ED093F: Sodium 7440-23-5 1 mg/L 16 16 0.0 0% - 50%
ED093F: Potassium 7440-09-7 1 mg/L 2 1 0.0 No Limit
9 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3137026)
EG020A-F: Cadmium 7440-43-9 0.0001 mg/L 0.0003 0.0004 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020A-F: Antimony 7440-36-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Arsenic 7440-38-2 0.001 mg/L 0.164 0.163 0.9 0% - 20%
EG020A-F: Beryllium 7440-41-7 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Barium 7440-39-3 0.001 mg/L 0.008 0.008 0.0 No Limit
EG020A-F: Chromium 7440-47-3 0.001 mg/L 0.038 0.037 0.0 0% - 20%
EG020A-F: Cobalt 7440-48-4 0.001 mg/L 0.008 0.009 0.0 No Limit
EG020A-F: Copper 7440-50-8 0.001 mg/L 0.012 0.012 0.0 0% - 50%
EG020A-F: Lead 7439-92-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Lithium 7439-93-2 0.001 mg/L 0.992 0.914 8.1 0% - 20%
EG020A-F: Manganese 7439-96-5 0.001 mg/L 0.192 0.189 1.4 0% - 20%
EG020A-F: Molybdenum 7439-98-7 0.001 mg/L 0.092 0.095 3.5 0% - 20%
EG020A-F: Nickel 7440-02-0 0.001 mg/L 0.212 0.213 0.6 0% - 20%
EG020A-F: Thallium 7440-28-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Tin 7440-31-5 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Zinc 7440-66-6 0.005 mg/L 0.006 0.006 0.0 No Limit
EG020A-F: Aluminium 7429-90-5 0.01 mg/L 0.03 0.03 0.0 No Limit
EG020A-F: Selenium 7782-49-2 0.01 mg/L <0.01 <0.01 0.0 No Limit
EG020A-F: Vanadium 7440-62-2 0.01 mg/L 0.06 0.06 0.0 No Limit
EG020A-F: Boron 7440-42-8 0.05 mg/L 1.20 1.13 6.3 0% - 20%
EG020A-F: Iron 7439-89-6 0.05 mg/L <0.05 <0.05 0.0 No Limit
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3137027)
EG020B-F: Bismuth 7440-69-9 0.001 mg/L <0.001 <0.001 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020B-F: Cerium 7440-45-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Caesium 7440-46-2 0.001 mg/L 0.010 0.010 0.0 0% - 50%
EG020B-F: Rubidium 7440-17-7 0.001 mg/L 0.379 0.380 0.4 0% - 20%
EG020B-F: Silver 7440-22-4 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Strontium 7440-24-6 0.001 mg/L 2.65 2.64 0.4 0% - 20%
EG020B-F: Thorium 7440-29-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Uranium 7440-61-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Tellurium 22541-49-7 0.005 mg/L <0.005 <0.005 0.0 No Limit
EG020B-F: Titanium 7440-32-6 0.01 mg/L 0.01 0.01 0.0 No Limit
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3137028)
EG020D-F: Dysprosium 7429-91-6 0.001 mg/L <0.001 <0.001 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020D-F: Erbium 7440-52-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Europium 7440-53-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Gadolinium 7440-54-2 0.001 mg/L <0.001 <0.001 0.0 No Limit
10 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3137028) - continued
EG020D-F: Gallium 7440-55-3 0.001 mg/L <0.001 <0.001 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020D-F: Holmium 7440-60-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Indium 7440-74-6 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Lanthanum 7439-91-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Lutetium 7439-94-3 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Neodymium 7440-00-8 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Praseodymium 7440-10-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Samarium 7440-19-9 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Terbium 7440-27-9 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Thulium 7440-30-4 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Ytterbium 7440-64-4 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Yttrium 7440-65-5 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Zirconium 7440-67-7 0.005 mg/L <0.005 <0.005 0.0 No Limit
EG020D-F: Hafnium 7440-58-6 0.01 mg/L <0.01 <0.01 0.0 No Limit
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3144631)
EG020A-F: Cadmium 7440-43-9 0.0001 mg/L 0.0003 0.0004 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020A-F: Antimony 7440-36-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Arsenic 7440-38-2 0.001 mg/L 0.164 0.157 4.3 0% - 20%
EG020A-F: Beryllium 7440-41-7 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Barium 7440-39-3 0.001 mg/L 0.008 0.007 15.1 No Limit
EG020A-F: Chromium 7440-47-3 0.001 mg/L 0.038 0.035 6.4 0% - 20%
EG020A-F: Cobalt 7440-48-4 0.001 mg/L 0.008 0.009 0.0 No Limit
EG020A-F: Copper 7440-50-8 0.001 mg/L 0.012 0.011 0.0 0% - 50%
EG020A-F: Lead 7439-92-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Lithium 7439-93-2 0.001 mg/L 1.12 1.07 4.6 0% - 20%
EG020A-F: Manganese 7439-96-5 0.001 mg/L 0.192 0.171 11.2 0% - 20%
EG020A-F: Molybdenum 7439-98-7 0.001 mg/L 0.092 0.105 13.8 0% - 20%
EG020A-F: Nickel 7440-02-0 0.001 mg/L 0.212 0.199 6.2 0% - 20%
EG020A-F: Thallium 7440-28-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Tin 7440-31-5 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-F: Zinc 7440-66-6 0.005 mg/L 0.006 0.006 0.0 No Limit
EG020A-F: Aluminium 7429-90-5 0.01 mg/L 0.04 0.04 0.0 No Limit
EG020A-F: Selenium 7782-49-2 0.01 mg/L <0.01 <0.01 0.0 No Limit
EG020A-F: Vanadium 7440-62-2 0.01 mg/L 0.06 0.06 0.0 No Limit
EG020A-F: Boron 7440-42-8 0.05 mg/L 1.44 1.42 1.4 0% - 20%
EG020A-F: Iron 7439-89-6 0.05 mg/L <0.05 <0.05 0.0 No Limit
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3144632)
11 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3144632) - continued
EG020B-F: Bismuth 7440-69-9 0.001 mg/L <0.001 <0.001 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020B-F: Cerium 7440-45-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Caesium 7440-46-2 0.001 mg/L 0.010 0.009 11.7 No Limit
EG020B-F: Rubidium 7440-17-7 0.001 mg/L 0.411 0.406 1.2 0% - 20%
EG020B-F: Silver 7440-22-4 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Strontium 7440-24-6 0.001 mg/L 2.65 2.46 7.5 0% - 20%
EG020B-F: Thorium 7440-29-1 0.001 mg/L 0.002 <0.001 0.0 No Limit
EG020B-F: Uranium 7440-61-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020B-F: Tellurium 22541-49-7 0.005 mg/L <0.005 <0.005 0.0 No Limit
EG020B-F: Titanium 7440-32-6 0.01 mg/L 0.01 0.01 0.0 No Limit
EG020F: Dissolved Metals by ICP-MS (QC Lot: 3144633)
EG020D-F: Dysprosium 7429-91-6 0.001 mg/L <0.001 <0.001 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EG020D-F: Erbium 7440-52-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Europium 7440-53-1 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Gadolinium 7440-54-2 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Gallium 7440-55-3 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Holmium 7440-60-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Indium 7440-74-6 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Lanthanum 7439-91-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Lutetium 7439-94-3 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Neodymium 7440-00-8 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Praseodymium 7440-10-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Samarium 7440-19-9 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Terbium 7440-27-9 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Thulium 7440-30-4 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Ytterbium 7440-64-4 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Yttrium 7440-65-5 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020D-F: Zirconium 7440-67-7 0.005 mg/L <0.005 <0.005 0.0 No Limit
EG020D-F: Hafnium 7440-58-6 0.01 mg/L <0.01 <0.01 0.0 No Limit
EG020W: Water Leachable Metals by ICP-MS (QC Lot: 3160803)
EG020A-W: Antimony 7440-36-0 0.001 mg/L 0.001 <0.001 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EG020A-W: Arsenic 7440-38-2 0.001 mg/L 0.004 0.004 0.0 No Limit
EG020A-W: Beryllium 7440-41-7 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-W: Barium 7440-39-3 0.001 mg/L 0.622 0.622 0.0 0% - 20%
EG020A-W: Cobalt 7440-48-4 0.001 mg/L 0.003 0.003 0.0 No Limit
EG020A-W: Copper 7440-50-8 0.001 mg/L 0.242 0.243 0.0 0% - 20%
EG020A-W: Lead 7439-92-1 0.001 mg/L 0.028 0.029 3.8 0% - 20%
12 of 27:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EG020W: Water Leachable Metals by ICP-MS (QC Lot: 3160803) - continued
EG020A-W: Lithium 7439-93-2 0.001 mg/L 0.005 0.005 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EG020A-W: Manganese 7439-96-5 0.001 mg/L 0.098 0.100 1.7 0% - 20%
EG020A-W: Molybdenum 7439-98-7 0.001 mg/L 0.004 0.004 0.0 No Limit
EG020A-W: Nickel 7440-02-0 0.001 mg/L 0.050 0.049 0.0 0% - 20%
EG020A-W: Thallium 7440-28-0 0.001 mg/L <0.001 <0.001 0.0 No Limit
EG020A-W: Tin 7440-31-5 0.001 mg/L 0.001 0.001 0.0 No Limit
EG020A-W: Zinc 7440-66-6 0.005 mg/L 0.115 0.116 0.9 0% - 20%
EG020A-W: Aluminium 7429-90-5 0.01 mg/L 5.45 5.36 1.7 0% - 20%
EG020A-W: Selenium 7782-49-2 0.01 mg/L <0.01 <0.01 0.0 No Limit
EG020A-W: Boron 7440-42-8 0.05 mg/L 0.11 0.12 0.0 No Limit
EG020A-W: Iron 7439-89-6 0.05 mg/L 4.83 4.82 0.0 0% - 20%
EG020W: Water Leachable Metals by ICP-MS (QC Lot: 3160804)
EG020B-W: Bismuth 7440-69-9 0.001 mg/L <0.001 0.001 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EG020B-W: Cerium 7440-45-1 0.001 mg/L 0.026 0.026 0.0 0% - 20%
EG020B-W: Caesium 7440-46-2 0.001 mg/L 0.001 0.001 0.0 No Limit
EG020B-W: Rubidium 7440-17-7 0.001 mg/L 0.009 0.009 0.0 No Limit
EG020B-W: Strontium 7440-24-6 0.001 mg/L 0.044 0.043 0.0 0% - 20%
EG020B-W: Thorium 7440-29-1 0.001 mg/L 0.007 0.007 0.0 No Limit
EG020B-W: Uranium 7440-61-1 0.001 mg/L 0.005 0.005 0.0 No Limit
EG020B-W: Titanium 7440-32-6 0.01 mg/L <0.01 <0.01 0.0 No Limit
EG020W: Water Leachable Metals by ICP-MS (QC Lot: 3160805)
EG020D-W: Indium 7440-74-6 0.001 mg/L <0.001 <0.001 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EG035W: Water Leachable Mercury by FIMS (QC Lot: 3166406)
EG035W: Mercury 7439-97-6 0.0001 mg/L <0.0001 <0.0001 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EK057G: Nitrite as N by Discrete Analyser (QC Lot: 3136314)
EK057G: Nitrite as N ---- 0.01 mg/L <0.01 0.01 0.0 No Limit137645044 Treated Waste
Water
EP1308148-003
EK057G: Nitrite as N by Discrete Analyser (QC Lot: 3145405)
EK057G: Nitrite as N ---- 0.01 mg/L <0.01 <0.01 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-004
EK057G: Nitrite as N by Discrete Analyser (QC Lot: 3161919)
EK057G: Nitrite as N ---- 0.01 mg/L <0.01 <0.01 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QC Lot: 3138189)
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L 0.22 0.22 0.0 0% - 20%137645044 Treated Waste
Water
EP1308148-003
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Sub-Matrix: WATER Laboratory Duplicate (DUP) Report
Original Result RPD (%)Laboratory sample ID Client sample ID Method: Compound CAS Number LOR Unit Duplicate Result Recovery Limits (%)
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QC Lot: 3145584)
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L 0.01 <0.01 0.0 No LimitAnonymousEP1308416-001
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L 0.01 0.01 0.0 No LimitAnonymousEP1308419-004
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QC Lot: 3162031)
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L 0.01 0.01 0.0 No Limit137645044 Flotation
Tailings 16.3%
EP1308148-001
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L 18.2 17.7 2.8 0% - 20%AnonymousEP1308661-012
EK067G: Total Phosphorus as P by Discrete Analyser (QC Lot: 3140673)
EK067G: Total Phosphorus as P ---- 0.01 mg/L 5.94 5.75 3.2 0% - 20%137645044 Treated Waste
Water
EP1308148-003
EK067G: Total Phosphorus as P ---- 0.01 mg/L 6.72 6.42 4.6 0% - 20%AnonymousEP1308287-006
EK067G: Total Phosphorus as P by Discrete Analyser (QC Lot: 3146613)
EK067G: Total Phosphorus as P ---- 0.01 mg/L 0.10 0.06 40.7 No LimitAnonymousEP1308354-001
EK067G: Total Phosphorus as P ---- 0.01 mg/L <0.01 <0.01 0.0 No LimitAnonymousEP1308386-004
EK067G: Total Phosphorus as P by Discrete Analyser (QC Lot: 3160813)
EK067G: Total Phosphorus as P ---- 0.01 mg/L 0.55 0.59 7.0 0% - 20%137645044 Flotation
Tailings 16.3%
EP1308148-001
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Method Blank (MB) and Laboratory Control Spike (LCS) Report
The quality control term Method / Laboratory Blank refers to an analyte free matrix to which all reagents are added in the same volumes or proportions as used in standard sample preparation. The purpose of this QC
parameter is to monitor potential laboratory contamination. The quality control term Laboratory Control Sample (LCS) refers to a certified reference material, or a known interference free matrix spiked with target
analytes. The purpose of this QC parameter is to monitor method precision and accuracy independent of sample matrix. Dynamic Recovery Limits are based on statistical evaluation of processed LCS.
Sub-Matrix: SOIL Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EA011: Net Acid Generation (QCLot: 3137387)
EA011: NAG (pH 7.0) ---- 0.1 kg H2SO4/t ---- 10324.8281 kg H2SO4/t 11490
EA011: Net Acid Generation (QCLot: 3145058)
EA011: NAG (pH 7.0) ---- 0.1 kg H2SO4/t ---- 10224.8281 kg H2SO4/t 11490
EA013: Acid Neutralising Capacity (QCLot: 3137386)
EA013: ANC as H2SO4 ---- 0.5 kg H2SO4 equ ---- 1069.8 kg H2SO4 equ 11880.4
0.5 kg H2SO4 equiv./t <0.5 -------- --------
EA013: ANC as CaCO3 ---- 0.1 % CaCO3 <0.1 -------- --------
EA013: Acid Neutralising Capacity (QCLot: 3145057)
EA013: ANC as H2SO4 ---- 0.5 kg H2SO4 equ ---- 99.29.8 kg H2SO4 equ 11880.4
0.5 kg H2SO4 equiv./t <0.5 -------- --------
EA013: ANC as CaCO3 ---- 0.1 % CaCO3 <0.1 -------- --------
EA031: pH (saturated paste) (QCLot: 3153648)
EA031: pH (Saturated Paste) ---- 0.1 pH Unit ---- 99.87.00 pH Unit 13070
EA032: Electrical Conductivity (saturated paste) (QCLot: 3153649)
EA032: Electrical Conductivity (Saturated Paste) ---- 1 µS/cm <1 1001412 µS/cm 10496
ED040T : Total Sulfate by ICPAES (QCLot: 3168841)
ED040T: Sulfate as SO4 2- 14808-79-8 100 mg/kg <100 -------- --------
ED042T: Total Sulfur by LECO (QCLot: 3155740)
ED042T: Sulfur - Total as S (LECO) ---- 0.01 % <0.01 1030.15 % 13070
ED093T: Total Major Cations (QCLot: 3303399)
ED093T: Sodium 7440-23-5 10 mg/kg <10 -------- --------
ED093T: Potassium 7440-09-7 10 mg/kg <10 -------- --------
ED093T: Calcium 7440-70-2 10 mg/kg <10 -------- --------
ED093T: Magnesium 7439-95-4 10 mg/kg <10 -------- --------
EG005T: Total Metals by ICP-AES (QCLot: 3155706)
EG005T: Aluminium 7429-90-5 50 mg/kg <50 -------- --------
EG005T: Boron 7440-42-8 50 mg/kg <50 -------- --------
EG005T: Iron 7439-89-6 50 mg/kg <50 -------- --------
EG020T: Total Metals by ICP-MS (QCLot: 3140536)
EG020X-T: Arsenic 7440-38-2 0.1 mg/kg <0.1 93.321.62091 mg/kg 13070
EG020X-T: Barium 7440-39-3 0.1 mg/kg <0.1 94.6154.8497 mg/kg 11971
EG020X-T: Beryllium 7440-41-7 0.1 mg/kg <0.1 -------- --------
EG020X-T: Cobalt 7440-48-4 0.1 mg/kg <0.1 -------- --------
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Sub-Matrix: SOIL Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EG020T: Total Metals by ICP-MS (QCLot: 3140536) - continued
EG020X-T: Chromium 7440-47-3 0.1 mg/kg <0.1 74.233.90415 mg/kg 13070
EG020X-T: Copper 7440-50-8 0.1 mg/kg <0.1 87.233.78205 mg/kg 13070
EG020X-T: Manganese 7439-96-5 0.1 mg/kg <0.1 -------- --------
EG020X-T: Molybdenum 7439-98-7 0.1 mg/kg <0.1 -------- --------
EG020X-T: Nickel 7440-02-0 0.1 mg/kg <0.1 94.551.10088 mg/kg 11674
EG020X-T: Lead 7439-92-1 0.1 mg/kg <0.1 95.040.33169 mg/kg 13070
EG020X-T: Antimony 7440-36-0 0.1 mg/kg <0.1 -------- --------
EG020X-T: Uranium 7440-61-1 0.1 mg/kg <0.1 -------- --------
EG020X-T: Zinc 7440-66-6 0.5 mg/kg <0.5 10361.70999 mg/kg 13070
EG020X-T: Lithium 7439-93-2 0.1 mg/kg <0.1 -------- --------
EG020X-T: Vanadium 7440-62-2 1 mg/kg <1 -------- --------
EG020X-T: Tin 7440-31-5 0.1 mg/kg <0.1 -------- --------
EG020T: Total Metals by ICP-MS (QCLot: 3140537)
EG020Y-T: Selenium 7782-49-2 1 mg/kg <1 -------- --------
EG020Y-T: Thallium 7440-28-0 0.1 mg/kg <0.1 -------- --------
EG020Y-T: Cadmium 7440-43-9 0.1 mg/kg <0.1 1054.683838 mg/kg 13070
EG020Y-T: Bismuth 7440-69-9 0.1 mg/kg <0.1 -------- --------
EG020Y-T: Thorium 7440-29-1 0.1 mg/kg <0.1 -------- --------
EG020T: Total Metals by ICP-MS (QCLot: 3140538)
EG020Z-T: Silver 7440-22-4 0.1 mg/kg <0.1 -------- --------
EG020T: Total Metals by ICP-MS (QCLot: 3155707)
EG020X-T: Arsenic 7440-38-2 0.1 mg/kg <0.1 10621.62091 mg/kg 13070
EG020X-T: Barium 7440-39-3 0.1 mg/kg <0.1 85.7154.8497 mg/kg 11971
EG020X-T: Beryllium 7440-41-7 0.1 mg/kg <0.1 -------- --------
EG020X-T: Cobalt 7440-48-4 0.1 mg/kg <0.1 -------- --------
EG020X-T: Chromium 7440-47-3 0.1 mg/kg <0.1 71.833.90415 mg/kg 13070
EG020X-T: Copper 7440-50-8 0.1 mg/kg <0.1 98.133.78205 mg/kg 13070
EG020X-T: Manganese 7439-96-5 0.1 mg/kg <0.1 -------- --------
EG020X-T: Molybdenum 7439-98-7 0.1 mg/kg <0.1 -------- --------
EG020X-T: Nickel 7440-02-0 0.1 mg/kg <0.1 10751.10088 mg/kg 11674
EG020X-T: Lead 7439-92-1 0.1 mg/kg <0.1 10240.33169 mg/kg 13070
EG020X-T: Antimony 7440-36-0 0.1 mg/kg <0.1 -------- --------
EG020X-T: Uranium 7440-61-1 0.1 mg/kg <0.1 -------- --------
EG020X-T: Zinc 7440-66-6 0.5 mg/kg <0.5 11161.70999 mg/kg 13070
EG020X-T: Lithium 7439-93-2 0.1 mg/kg <0.1 -------- --------
EG020X-T: Vanadium 7440-62-2 1 mg/kg <1 -------- --------
EG020X-T: Tin 7440-31-5 0.1 mg/kg <0.1 -------- --------
EG020T: Total Metals by ICP-MS (QCLot: 3155708)
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Sub-Matrix: SOIL Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EG020T: Total Metals by ICP-MS (QCLot: 3155708) - continued
EG020Y-T: Selenium 7782-49-2 1 mg/kg <1 -------- --------
EG020Y-T: Thallium 7440-28-0 0.1 mg/kg <0.1 -------- --------
EG020Y-T: Cadmium 7440-43-9 0.1 mg/kg <0.1 1054.683838 mg/kg 13070
EG020Y-T: Bismuth 7440-69-9 0.1 mg/kg <0.1 -------- --------
EG020Y-T: Thorium 7440-29-1 0.1 mg/kg <0.1 -------- --------
EG020T: Total Metals by ICP-MS (QCLot: 3155709)
EG020Z-T: Silver 7440-22-4 0.1 mg/kg <0.1 -------- --------
EG035T: Total Recoverable Mercury by FIMS (QCLot: 3166589)
EG035T: Mercury 7439-97-6 0.1 mg/kg <0.1 1142.154 mg/kg 12175.4
Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EA005P: pH by PC Titrator (QCLot: 3136280)
EA005-P: pH Value ---- 0.01 pH Unit ---- 1007.00 pH Unit 101.598.5
EA005P: pH by PC Titrator (QCLot: 3147664)
EA005-P: pH Value ---- 0.01 pH Unit ---- 1007.00 pH Unit 101.598.5
EA005P: pH by PC Titrator (QCLot: 3166307)
EA005-P: pH Value ---- 0.01 pH Unit ---- 1007.00 pH Unit 101.598.5
EA010P: Conductivity by PC Titrator (QCLot: 3136278)
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm <1 97.11412 µS/cm 10595
EA010P: Conductivity by PC Titrator (QCLot: 3147663)
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm <1 96.924800 µS/cm 10595
EA010P: Conductivity by PC Titrator (QCLot: 3166306)
EA010-P: Electrical Conductivity @ 25°C ---- 1 µS/cm <1 95.324800 µS/cm 10595
ED037P: Alkalinity by PC Titrator (QCLot: 3136276)
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-00
1
1 mg/L <1 -------- --------
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 -------- --------
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L <1 -------- --------
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L <1 81.3200 mg/L 12187
ED037P: Alkalinity by PC Titrator (QCLot: 3147662)
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-00
1
1 mg/L <1 -------- --------
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 -------- --------
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L <1 -------- --------
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L <1 99.6200 mg/L 12187
ED037P: Alkalinity by PC Titrator (QCLot: 3166305)
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Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
ED037P: Alkalinity by PC Titrator (QCLot: 3166305) - continued
ED037-P: Hydroxide Alkalinity as CaCO3 DMO-210-00
1
1 mg/L <1 -------- --------
ED037-P: Carbonate Alkalinity as CaCO3 3812-32-6 1 mg/L <1 -------- --------
ED037-P: Bicarbonate Alkalinity as CaCO3 71-52-3 1 mg/L <1 -------- --------
ED037-P: Total Alkalinity as CaCO3 ---- 1 mg/L <1 99.8200 mg/L 12187
ED038A: Acidity (QCLot: 3139439)
ED038: Acidity as CaCO3 ---- 1 mg/L ---- 99.320 mg/L 11985
ED038A: Acidity (QCLot: 3147539)
ED038: Acidity as CaCO3 ---- 1 mg/L ---- 10820 mg/L 11985
ED038A: Acidity (QCLot: 3160815)
ED038: Acidity as CaCO3 ---- 1 mg/L ---- 10420 mg/L 11985
ED040F: Dissolved Major Anions (QCLot: 3136312)
ED040F: Sulfate as SO4 2- 14808-79-8 1 mg/L <1 10045 mg/L 10890
ED040F: Sulfur as S 63705-05-5 1 mg/L <1 -------- --------
ED040F: Silicon as SiO2 14464-46-1 0.1 mg/L <0.1 -------- --------
ED040F: Silicon 7440-21-3 0.05 mg/L <0.05 -------- --------
ED040F: Dissolved Major Anions (QCLot: 3145403)
ED040F: Sulfate as SO4 2- 14808-79-8 1 mg/L <1 99.645 mg/L 10890
ED040F: Sulfur as S 63705-05-5 1 mg/L <1 -------- --------
ED040F: Silicon as SiO2 14464-46-1 0.1 mg/L <0.1 -------- --------
ED040F: Silicon 7440-21-3 0.05 mg/L <0.05 -------- --------
ED040T: Total Major Anions (QCLot: 3161250)
ED040T: Sulfate as SO4 2- 14808-79-8 1 mg/L <1 -------- --------
ED040T: Sulfur as S 63705-05-5 1 mg/L <1 -------- --------
ED040W: Water Leachable Sulfate by ICPAES (QCLot: 3160806)
ED040W: Silicon 7440-21-3 0.05 mg/L <0.05 -------- --------
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3136316)
ED041G: Sulfate as SO4 - Turbidimetric 14808-79-8 1 mg/L <1 96.425 mg/L 12188
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3145407)
ED041G: Sulfate as SO4 - Turbidimetric 14808-79-8 1 mg/L <1 99.825 mg/L 12188
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3161921)
ED041G: Sulfate as SO4 - Turbidimetric 14808-79-8 1 mg/L <1 94.225 mg/L 12188
ED045G: Chloride Discrete analyser (QCLot: 3136315)
ED045G: Chloride 16887-00-6 1 mg/L <1 97.81000 mg/L 12084
ED045G: Chloride Discrete analyser (QCLot: 3145406)
ED045G: Chloride 16887-00-6 1 mg/L <1 1061000 mg/L 12084
ED045G: Chloride Discrete analyser (QCLot: 3161920)
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Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
ED045G: Chloride Discrete analyser (QCLot: 3161920) - continued
ED045G: Chloride 16887-00-6 1 mg/L <1 96.01000 mg/L 12084
ED093F: Dissolved Major Cations (QCLot: 3136313)
ED093F: Calcium 7440-70-2 1 mg/L <1 10350 mg/L 10991
ED093F: Magnesium 7439-95-4 1 mg/L <1 99.950 mg/L 10890
ED093F: Sodium 7440-23-5 1 mg/L <1 99.150 mg/L 11187
ED093F: Potassium 7440-09-7 1 mg/L <1 99.850 mg/L 11090
ED093F: Dissolved Major Cations (QCLot: 3145404)
ED093F: Calcium 7440-70-2 1 mg/L <1 10250 mg/L 10991
ED093F: Magnesium 7439-95-4 1 mg/L <1 10250 mg/L 10890
ED093F: Sodium 7440-23-5 1 mg/L <1 10250 mg/L 11187
ED093F: Potassium 7440-09-7 1 mg/L <1 10450 mg/L 11090
ED093F: Dissolved Major Cations (QCLot: 3161918)
ED093F: Calcium 7440-70-2 1 mg/L <1 99.550 mg/L 10991
ED093F: Magnesium 7439-95-4 1 mg/L <1 10150 mg/L 10890
ED093F: Sodium 7440-23-5 1 mg/L <1 99.150 mg/L 11187
ED093F: Potassium 7440-09-7 1 mg/L <1 10050 mg/L 11090
EG020F: Dissolved Metals by ICP-MS (QCLot: 3137026)
EG020A-F: Aluminium 7429-90-5 0.01 mg/L <0.01 90.40.50 mg/L 11377
EG020A-F: Antimony 7440-36-0 0.001 mg/L <0.001 93.00.100 mg/L 14381
EG020A-F: Arsenic 7440-38-2 0.001 mg/L <0.001 1040.100 mg/L 10989
EG020A-F: Beryllium 7440-41-7 0.001 mg/L <0.001 99.10.100 mg/L 12177
EG020A-F: Barium 7440-39-3 0.001 mg/L <0.001 1000.100 mg/L 10888
EG020A-F: Cadmium 7440-43-9 0.0001 mg/L <0.0001 1030.1000 mg/L 10989
EG020A-F: Chromium 7440-47-3 0.001 mg/L <0.001 94.50.100 mg/L 10688
EG020A-F: Cobalt 7440-48-4 0.001 mg/L <0.001 1020.100 mg/L 10888
EG020A-F: Copper 7440-50-8 0.001 mg/L <0.001 96.20.100 mg/L 11185
EG020A-F: Lead 7439-92-1 0.001 mg/L <0.001 98.90.100 mg/L 10587
EG020A-F: Lithium 7439-93-2 0.001 mg/L <0.001 96.80.100 mg/L 12969
EG020A-F: Manganese 7439-96-5 0.001 mg/L <0.001 97.00.100 mg/L 10787
EG020A-F: Molybdenum 7439-98-7 0.001 mg/L <0.001 95.50.100 mg/L 10789
EG020A-F: Nickel 7440-02-0 0.001 mg/L <0.001 1000.100 mg/L 10987
EG020A-F: Selenium 7782-49-2 0.01 mg/L <0.01 1130.10 mg/L 11793
EG020A-F: Thallium 7440-28-0 0.001 mg/L <0.001 1020.100 mg/L 10789
EG020A-F: Tin 7440-31-5 0.001 mg/L <0.001 1000.100 mg/L 12379
EG020A-F: Vanadium 7440-62-2 0.01 mg/L <0.01 89.70.10 mg/L 10686
EG020A-F: Zinc 7440-66-6 0.005 mg/L <0.005 1030.100 mg/L 11589
EG020A-F: Boron 7440-42-8 0.05 mg/L <0.05 1010.10 mg/L 12175
EG020A-F: Iron 7439-89-6 0.05 mg/L <0.05 94.60.50 mg/L 10983
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Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EG020F: Dissolved Metals by ICP-MS (QCLot: 3137027)
EG020B-F: Bismuth 7440-69-9 0.001 mg/L <0.001 84.20.1 mg/L 12755
EG020B-F: Cerium 7440-45-1 0.001 mg/L <0.001 -------- --------
EG020B-F: Caesium 7440-46-2 0.001 mg/L <0.001 -------- --------
EG020B-F: Rubidium 7440-17-7 0.001 mg/L <0.001 -------- --------
EG020B-F: Silver 7440-22-4 0.001 mg/L <0.001 98.80.01 mg/L 10565
EG020B-F: Strontium 7440-24-6 0.001 mg/L <0.001 1010.1 mg/L 10884
EG020B-F: Tellurium 22541-49-7 0.005 mg/L <0.005 1050.1 mg/L 10882
EG020B-F: Thorium 7440-29-1 0.001 mg/L <0.001 -------- --------
EG020B-F: Titanium 7440-32-6 0.01 mg/L <0.01 85.40.1 mg/L 10684
EG020B-F: Uranium 7440-61-1 0.001 mg/L <0.001 -------- --------
EG020F: Dissolved Metals by ICP-MS (QCLot: 3137028)
EG020D-F: Dysprosium 7429-91-6 0.001 mg/L <0.001 -------- --------
EG020D-F: Erbium 7440-52-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Europium 7440-53-1 0.001 mg/L <0.001 -------- --------
EG020D-F: Gadolinium 7440-54-2 0.001 mg/L <0.001 -------- --------
EG020D-F: Gallium 7440-55-3 0.001 mg/L <0.001 -------- --------
EG020D-F: Hafnium 7440-58-6 0.01 mg/L <0.01 -------- --------
EG020D-F: Holmium 7440-60-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Indium 7440-74-6 0.001 mg/L <0.001 -------- --------
EG020D-F: Lanthanum 7439-91-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Lutetium 7439-94-3 0.001 mg/L <0.001 -------- --------
EG020D-F: Neodymium 7440-00-8 0.001 mg/L <0.001 -------- --------
EG020D-F: Praseodymium 7440-10-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Samarium 7440-19-9 0.001 mg/L <0.001 -------- --------
EG020D-F: Terbium 7440-27-9 0.001 mg/L <0.001 -------- --------
EG020D-F: Thulium 7440-30-4 0.001 mg/L <0.001 -------- --------
EG020D-F: Ytterbium 7440-64-4 0.001 mg/L <0.001 -------- --------
EG020D-F: Yttrium 7440-65-5 0.001 mg/L <0.001 -------- --------
EG020D-F: Zirconium 7440-67-7 0.005 mg/L <0.005 -------- --------
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144631)
EG020A-F: Aluminium 7429-90-5 0.01 mg/L <0.01 99.10.50 mg/L 11377
EG020A-F: Antimony 7440-36-0 0.001 mg/L <0.001 84.00.100 mg/L 14381
EG020A-F: Arsenic 7440-38-2 0.001 mg/L <0.001 96.00.100 mg/L 10989
EG020A-F: Beryllium 7440-41-7 0.001 mg/L <0.001 88.90.100 mg/L 12177
EG020A-F: Barium 7440-39-3 0.001 mg/L <0.001 91.60.100 mg/L 10888
EG020A-F: Cadmium 7440-43-9 0.0001 mg/L <0.0001 94.20.1000 mg/L 10989
EG020A-F: Chromium 7440-47-3 0.001 mg/L <0.001 91.30.100 mg/L 10688
EG020A-F: Cobalt 7440-48-4 0.001 mg/L <0.001 92.90.100 mg/L 10888
EG020A-F: Copper 7440-50-8 0.001 mg/L <0.001 93.40.100 mg/L 11185
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Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144631) - continued
EG020A-F: Lead 7439-92-1 0.001 mg/L <0.001 93.50.100 mg/L 10587
EG020A-F: Lithium 7439-93-2 0.001 mg/L <0.001 90.40.100 mg/L 12969
EG020A-F: Manganese 7439-96-5 0.001 mg/L <0.001 89.30.100 mg/L 10787
EG020A-F: Molybdenum 7439-98-7 0.001 mg/L <0.001 89.60.100 mg/L 10789
EG020A-F: Nickel 7440-02-0 0.001 mg/L <0.001 96.00.100 mg/L 10987
EG020A-F: Selenium 7782-49-2 0.01 mg/L <0.01 1020.10 mg/L 11793
EG020A-F: Thallium 7440-28-0 0.001 mg/L <0.001 92.40.100 mg/L 10789
EG020A-F: Tin 7440-31-5 0.001 mg/L <0.001 91.40.100 mg/L 12379
EG020A-F: Vanadium 7440-62-2 0.01 mg/L <0.01 91.30.10 mg/L 10686
EG020A-F: Zinc 7440-66-6 0.005 mg/L <0.005 97.70.100 mg/L 11589
EG020A-F: Boron 7440-42-8 0.05 mg/L <0.05 97.50.10 mg/L 12175
EG020A-F: Iron 7439-89-6 0.05 mg/L <0.05 88.20.50 mg/L 10983
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144632)
EG020B-F: Bismuth 7440-69-9 0.001 mg/L <0.001 73.20.1 mg/L 12755
EG020B-F: Cerium 7440-45-1 0.001 mg/L <0.001 -------- --------
EG020B-F: Caesium 7440-46-2 0.001 mg/L <0.001 -------- --------
EG020B-F: Rubidium 7440-17-7 0.001 mg/L <0.001 -------- --------
EG020B-F: Silver 7440-22-4 0.001 mg/L <0.001 79.00.01 mg/L 10565
EG020B-F: Strontium 7440-24-6 0.001 mg/L <0.001 91.40.1 mg/L 10884
EG020B-F: Tellurium 22541-49-7 0.005 mg/L <0.005 96.80.1 mg/L 10882
EG020B-F: Thorium 7440-29-1 0.001 mg/L <0.001 -------- --------
EG020B-F: Titanium 7440-32-6 0.01 mg/L <0.01 87.90.1 mg/L 10684
EG020B-F: Uranium 7440-61-1 0.001 mg/L <0.001 -------- --------
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144633)
EG020D-F: Dysprosium 7429-91-6 0.001 mg/L <0.001 -------- --------
EG020D-F: Erbium 7440-52-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Europium 7440-53-1 0.001 mg/L <0.001 -------- --------
EG020D-F: Gadolinium 7440-54-2 0.001 mg/L <0.001 -------- --------
EG020D-F: Gallium 7440-55-3 0.001 mg/L <0.001 -------- --------
EG020D-F: Hafnium 7440-58-6 0.01 mg/L <0.01 -------- --------
EG020D-F: Holmium 7440-60-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Indium 7440-74-6 0.001 mg/L <0.001 -------- --------
EG020D-F: Lanthanum 7439-91-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Lutetium 7439-94-3 0.001 mg/L <0.001 -------- --------
EG020D-F: Neodymium 7440-00-8 0.001 mg/L <0.001 -------- --------
EG020D-F: Praseodymium 7440-10-0 0.001 mg/L <0.001 -------- --------
EG020D-F: Samarium 7440-19-9 0.001 mg/L <0.001 -------- --------
EG020D-F: Terbium 7440-27-9 0.001 mg/L <0.001 -------- --------
EG020D-F: Thulium 7440-30-4 0.001 mg/L <0.001 -------- --------
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:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144633) - continued
EG020D-F: Ytterbium 7440-64-4 0.001 mg/L <0.001 -------- --------
EG020D-F: Yttrium 7440-65-5 0.001 mg/L <0.001 -------- --------
EG020D-F: Zirconium 7440-67-7 0.005 mg/L <0.005 -------- --------
EG020W: Water Leachable Metals by ICP-MS (QCLot: 3160803)
EG020A-W: Aluminium 7429-90-5 0.01 mg/L <0.01 97.70.5 mg/L 11585
EG020A-W: Antimony 7440-36-0 0.001 mg/L <0.001 1080.1 mg/L 14476
EG020A-W: Arsenic 7440-38-2 0.001 mg/L <0.001 96.50.1 mg/L 10979
EG020A-W: Beryllium 7440-41-7 0.001 mg/L <0.001 95.80.1 mg/L 11280
EG020A-W: Barium 7440-39-3 0.001 mg/L <0.001 97.80.1 mg/L 11680
EG020A-W: Cobalt 7440-48-4 0.001 mg/L <0.001 1000.1 mg/L 11183
EG020A-W: Copper 7440-50-8 0.001 mg/L <0.001 98.10.1 mg/L 11282
EG020A-W: Lead 7439-92-1 0.001 mg/L <0.001 1030.1 mg/L 11082
EG020A-W: Lithium 7439-93-2 0.001 mg/L <0.001 1190.1 mg/L 12769
EG020A-W: Manganese 7439-96-5 0.001 mg/L <0.001 96.00.1 mg/L 11183
EG020A-W: Molybdenum 7439-98-7 0.001 mg/L <0.001 1060.1 mg/L 11981
EG020A-W: Nickel 7440-02-0 0.001 mg/L <0.001 99.20.1 mg/L 11183
EG020A-W: Selenium 7782-49-2 0.01 mg/L <0.01 1000.1 mg/L 10979
EG020A-W: Thallium 7440-28-0 0.001 mg/L <0.001 1040.1 mg/L 11383
EG020A-W: Tin 7440-31-5 0.001 mg/L <0.001 98.60.1 mg/L 13068
EG020A-W: Zinc 7440-66-6 0.005 mg/L <0.005 88.40.1 mg/L 10777
EG020A-W: Boron 7440-42-8 0.05 mg/L <0.05 1030.1 mg/L 12272
EG020A-W: Iron 7439-89-6 0.05 mg/L <0.05 96.20.5 mg/L 11381
EG020W: Water Leachable Metals by ICP-MS (QCLot: 3160804)
EG020B-W: Bismuth 7440-69-9 0.001 mg/L <0.001 1030.1 mg/L 14254
EG020B-W: Cerium 7440-45-1 0.001 mg/L <0.001 -------- --------
EG020B-W: Caesium 7440-46-2 0.001 mg/L <0.001 -------- --------
EG020B-W: Rubidium 7440-17-7 0.001 mg/L <0.001 -------- --------
EG020B-W: Strontium 7440-24-6 0.001 mg/L <0.001 98.10.1 mg/L 11577
EG020B-W: Thorium 7440-29-1 0.001 mg/L <0.001 -------- --------
EG020B-W: Titanium 7440-32-6 0.01 mg/L <0.01 92.80.1 mg/L 11082
EG020B-W: Uranium 7440-61-1 0.001 mg/L <0.001 -------- --------
EG020W: Water Leachable Metals by ICP-MS (QCLot: 3160805)
EG020D-W: Indium 7440-74-6 0.001 mg/L <0.001 -------- --------
EG035W: Water Leachable Mercury by FIMS (QCLot: 3166406)
EG035W: Mercury 7439-97-6 0.0001 mg/L <0.0001 1040.0100 mg/L 11593
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3136314)
EK057G: Nitrite as N ---- 0.01 mg/L <0.01 94.20.5 mg/L 11286
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3145405)
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:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Method Blank (MB)
Report
Laboratory Control Spike (LCS) Report
Spike Spike Recovery (%) Recovery Limits (%)
Result Concentration HighLowLCSMethod: Compound CAS Number LOR Unit
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3145405) - continued
EK057G: Nitrite as N ---- 0.01 mg/L <0.01 1030.5 mg/L 11286
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3161919)
EK057G: Nitrite as N ---- 0.01 mg/L <0.01 1020.5 mg/L 11286
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3138189)
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L <0.01 1020.5 mg/L 11292
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3145584)
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L <0.01 1010.5 mg/L 11292
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3162031)
EK059G: Nitrite + Nitrate as N ---- 0.01 mg/L <0.01 1060.5 mg/L 11292
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3140673)
EK067G: Total Phosphorus as P ---- 0.01 mg/L <0.01 90.84.42 mg/L 13070
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3146613)
EK067G: Total Phosphorus as P ---- 0.01 mg/L <0.01 90.04.42 mg/L 13070
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3160813)
EK067G: Total Phosphorus as P ---- 0.01 mg/L <0.01 87.84.42 mg/L 13070
Matrix Spike (MS) ReportThe quality control term Matrix Spike (MS) refers to an intralaboratory split sample spiked with a representative set of target analytes. The purpose of this QC parameter is to monitor potential matrix effects on
analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference.
Sub-Matrix: SOIL Matrix Spike (MS) Report
SpikeRecovery(%) Recovery Limits (%)Spike
HighLowMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EG005T: Total Metals by ICP-AES (QCLot: 3155706)
137645044 Hydromet SampleEP1308148-002 7429-90-5EG005T: Aluminium # Not
Determined
50 mg/kg 13070
7439-89-6EG005T: Iron # Not
Determined
50 mg/kg 13070
EG020T: Total Metals by ICP-MS (QCLot: 3140536)
137645044 Hydromet SampleEP1308148-002 7440-38-2EG020X-T: Arsenic 12850 mg/kg 13070
7440-47-3EG020X-T: Chromium # Not
Determined
50 mg/kg 13070
7440-50-8EG020X-T: Copper 80.850 mg/kg 13070
7440-02-0EG020X-T: Nickel # Not
Determined
50 mg/kg 13070
7439-92-1EG020X-T: Lead 82.050 mg/kg 13070
7440-66-6EG020X-T: Zinc 83.850 mg/kg 13070
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:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: SOIL Matrix Spike (MS) Report
SpikeRecovery(%) Recovery Limits (%)Spike
HighLowMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EG020T: Total Metals by ICP-MS (QCLot: 3140537)
137645044 Hydromet SampleEP1308148-002 7782-49-2EG020Y-T: Selenium # Not
Determined
10 mg/kg 13070
7440-43-9EG020Y-T: Cadmium 10550 mg/kg 13070
EG020T: Total Metals by ICP-MS (QCLot: 3155707)
137645044 Hydromet SampleEP1308148-002 7440-38-2EG020X-T: Arsenic # Not
Determined
50 mg/kg 13070
7440-47-3EG020X-T: Chromium # Not
Determined
50 mg/kg 13070
7440-50-8EG020X-T: Copper # Not
Determined
50 mg/kg 13070
7440-02-0EG020X-T: Nickel # Not
Determined
50 mg/kg 13070
7439-92-1EG020X-T: Lead # Not
Determined
50 mg/kg 13070
7440-66-6EG020X-T: Zinc # Not
Determined
50 mg/kg 13070
EG020T: Total Metals by ICP-MS (QCLot: 3155708)
137645044 Hydromet SampleEP1308148-002 7782-49-2EG020Y-T: Selenium # Not
Determined
10 mg/kg 13070
7440-43-9EG020Y-T: Cadmium # Not
Determined
50 mg/kg 13070
EG035T: Total Recoverable Mercury by FIMS (QCLot: 3166589)
137645044 Hydromet SampleEP1308148-002 7439-97-6EG035T: Mercury 86.410 mg/kg 13070
Sub-Matrix: WATER Matrix Spike (MS) Report
SpikeRecovery(%) Recovery Limits (%)Spike
HighLowMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3145407)
137645044 Flotation Tailings 16.3%EP1308148-004 14808-79-8ED041G: Sulfate as SO4 - Turbidimetric 97.1100 mg/L 13070
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3161921)
137645044 Flotation Tailings 16.3%EP1308148-001 14808-79-8ED041G: Sulfate as SO4 - Turbidimetric 97.5100 mg/L 13070
ED045G: Chloride Discrete analyser (QCLot: 3136315)
137645044 Treated Waste WaterEP1308148-003 16887-00-6ED045G: Chloride 92.11000 mg/L 13070
ED045G: Chloride Discrete analyser (QCLot: 3145406)
137645044 Flotation Tailings 16.3%EP1308148-004 16887-00-6ED045G: Chloride 1051000 mg/L 13070
ED045G: Chloride Discrete analyser (QCLot: 3161920)
137645044 Flotation Tailings 16.3%EP1308148-001 16887-00-6ED045G: Chloride 99.91000 mg/L 13070
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EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Matrix Spike (MS) Report
SpikeRecovery(%) Recovery Limits (%)Spike
HighLowMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144631)
137645044 Flotation Tailings 16.3%EP1308148-004 7440-38-2EG020A-F: Arsenic 1010.200 mg/L 13070
7440-41-7EG020A-F: Beryllium 1090.200 mg/L 13070
7440-39-3EG020A-F: Barium 1030.200 mg/L 13070
7440-43-9EG020A-F: Cadmium 1170.0500 mg/L 13070
7440-47-3EG020A-F: Chromium 87.00.200 mg/L 13070
7440-48-4EG020A-F: Cobalt 91.40.200 mg/L 13070
7440-50-8EG020A-F: Copper 85.70.200 mg/L 13070
7439-92-1EG020A-F: Lead 1010.200 mg/L 13070
7439-96-5EG020A-F: Manganese 81.90.200 mg/L 13070
7440-02-0EG020A-F: Nickel 87.30.200 mg/L 13070
7440-62-2EG020A-F: Vanadium 91.20.20 mg/L 13070
7440-66-6EG020A-F: Zinc 96.60.200 mg/L 13070
EG020W: Water Leachable Metals by ICP-MS (QCLot: 3160803)
137645044 Hydromet SampleEP1308148-002 7440-38-2EG020A-W: Arsenic 1091.000 mg/L 13070
7440-41-7EG020A-W: Beryllium 1061.000 mg/L 13070
7440-39-3EG020A-W: Barium 1041.000 mg/L 13070
7440-48-4EG020A-W: Cobalt 1021.000 mg/L 13070
7440-50-8EG020A-W: Copper 98.01.000 mg/L 13070
7439-92-1EG020A-W: Lead 1021.000 mg/L 13070
7439-96-5EG020A-W: Manganese 94.21.000 mg/L 13070
7440-02-0EG020A-W: Nickel 95.51.000 mg/L 13070
7440-66-6EG020A-W: Zinc 1041.000 mg/L 13070
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3136314)
137645044 Treated Waste WaterEP1308148-003 ----EK057G: Nitrite as N 95.20.5 mg/L 13070
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3145405)
137645044 Flotation Tailings 16.3%EP1308148-004 ----EK057G: Nitrite as N 1050.5 mg/L 13070
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3161919)
137645044 Flotation Tailings 16.3%EP1308148-001 ----EK057G: Nitrite as N 1080.5 mg/L 13070
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3138189)
137645044 Treated Waste WaterEP1308148-003 ----EK059G: Nitrite + Nitrate as N 87.40.5 mg/L 13070
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3145584)
AnonymousEP1308416-001 ----EK059G: Nitrite + Nitrate as N 1100.5 mg/L 13070
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3162031)
137645044 Flotation Tailings 16.3%EP1308148-001 ----EK059G: Nitrite + Nitrate as N 87.60.6 mg/L 13070
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3140673)
137645044 Treated Waste WaterEP1308148-003 ----EK067G: Total Phosphorus as P # Not
Determined
1 mg/L 13070
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EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Matrix Spike (MS) Report
SpikeRecovery(%) Recovery Limits (%)Spike
HighLowMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3146613)
AnonymousEP1308354-001 ----EK067G: Total Phosphorus as P 96.61 mg/L 13070
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3160813)
137645044 Flotation Tailings 16.3%EP1308148-001 ----EK067G: Total Phosphorus as P 85.71 mg/L 13070
Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report
The quality control term Matrix Spike (MS) and Matrix Spike Duplicate (MSD) refers to intralaboratory split samples spiked with a representative set of target analytes. The purpose of these QC parameters are to
monitor potential matrix effects on analyte recoveries. Static Recovery Limits as per laboratory Data Quality Objectives (DQOs). Ideal recovery ranges stated may be waived in the event of sample matrix interference.
Sub-Matrix: SOIL Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report
RPDs (%)Spike Recovery (%) Recovery Limits (%)Spike
Control LimitValueHighLowMSDMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EG020T: Total Metals by ICP-MS (QCLot: 3140536)
137645044 Hydromet SampleEP1308148-002 7440-38-2EG020X-T: Arsenic --------12850 mg/kg 13070 ----
7440-47-3EG020X-T: Chromium --------# Not
Determined
50 mg/kg 13070 ----
7440-50-8EG020X-T: Copper --------80.850 mg/kg 13070 ----
7440-02-0EG020X-T: Nickel --------# Not
Determined
50 mg/kg 13070 ----
7439-92-1EG020X-T: Lead --------82.050 mg/kg 13070 ----
7440-66-6EG020X-T: Zinc --------83.850 mg/kg 13070 ----
EG020T: Total Metals by ICP-MS (QCLot: 3140537)
137645044 Hydromet SampleEP1308148-002 7782-49-2EG020Y-T: Selenium --------# Not
Determined
10 mg/kg 13070 ----
7440-43-9EG020Y-T: Cadmium --------10550 mg/kg 13070 ----
EG005T: Total Metals by ICP-AES (QCLot: 3155706)
137645044 Hydromet SampleEP1308148-002 7429-90-5EG005T: Aluminium --------# Not
Determined
50 mg/kg 13070 ----
7439-89-6EG005T: Iron --------# Not
Determined
50 mg/kg 13070 ----
EG020T: Total Metals by ICP-MS (QCLot: 3155707)
137645044 Hydromet SampleEP1308148-002 7440-38-2EG020X-T: Arsenic --------# Not
Determined
50 mg/kg 13070 ----
7440-47-3EG020X-T: Chromium --------# Not
Determined
50 mg/kg 13070 ----
7440-50-8EG020X-T: Copper --------# Not
Determined
50 mg/kg 13070 ----
7440-02-0EG020X-T: Nickel --------# Not
Determined
50 mg/kg 13070 ----
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:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: SOIL Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report
RPDs (%)Spike Recovery (%) Recovery Limits (%)Spike
Control LimitValueHighLowMSDMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EG020T: Total Metals by ICP-MS (QCLot: 3155707) - continued
137645044 Hydromet SampleEP1308148-002 7439-92-1EG020X-T: Lead --------# Not
Determined
50 mg/kg 13070 ----
7440-66-6EG020X-T: Zinc --------# Not
Determined
50 mg/kg 13070 ----
EG020T: Total Metals by ICP-MS (QCLot: 3155708)
137645044 Hydromet SampleEP1308148-002 7782-49-2EG020Y-T: Selenium --------# Not
Determined
10 mg/kg 13070 ----
7440-43-9EG020Y-T: Cadmium --------# Not
Determined
50 mg/kg 13070 ----
EG035T: Total Recoverable Mercury by FIMS (QCLot: 3166589)
137645044 Hydromet SampleEP1308148-002 7439-97-6EG035T: Mercury --------86.410 mg/kg 13070 ----
Sub-Matrix: WATER Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report
RPDs (%)Spike Recovery (%) Recovery Limits (%)Spike
Control LimitValueHighLowMSDMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3136314)
137645044 Treated Waste WaterEP1308148-003 ----EK057G: Nitrite as N --------95.20.5 mg/L 13070 ----
ED045G: Chloride Discrete analyser (QCLot: 3136315)
137645044 Treated Waste WaterEP1308148-003 16887-00-6ED045G: Chloride --------92.11000 mg/L 13070 ----
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3138189)
137645044 Treated Waste WaterEP1308148-003 ----EK059G: Nitrite + Nitrate as N --------87.40.5 mg/L 13070 ----
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3140673)
137645044 Treated Waste WaterEP1308148-003 ----EK067G: Total Phosphorus as P --------# Not
Determined
1 mg/L 13070 ----
EG020F: Dissolved Metals by ICP-MS (QCLot: 3144631)
137645044 Flotation Tailings 16.3%EP1308148-004 7440-38-2EG020A-F: Arsenic --------1010.200 mg/L 13070 ----
7440-41-7EG020A-F: Beryllium --------1090.200 mg/L 13070 ----
7440-39-3EG020A-F: Barium --------1030.200 mg/L 13070 ----
7440-43-9EG020A-F: Cadmium --------1170.0500 mg/L 13070 ----
7440-47-3EG020A-F: Chromium --------87.00.200 mg/L 13070 ----
7440-48-4EG020A-F: Cobalt --------91.40.200 mg/L 13070 ----
7440-50-8EG020A-F: Copper --------85.70.200 mg/L 13070 ----
7439-92-1EG020A-F: Lead --------1010.200 mg/L 13070 ----
7439-96-5EG020A-F: Manganese --------81.90.200 mg/L 13070 ----
7440-02-0EG020A-F: Nickel --------87.30.200 mg/L 13070 ----
7440-62-2EG020A-F: Vanadium --------91.20.20 mg/L 13070 ----
7440-66-6EG020A-F: Zinc --------96.60.200 mg/L 13070 ----
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3145405)
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EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Sub-Matrix: WATER Matrix Spike (MS) and Matrix Spike Duplicate (MSD) Report
RPDs (%)Spike Recovery (%) Recovery Limits (%)Spike
Control LimitValueHighLowMSDMSConcentrationLaboratory sample ID Client sample ID Method: Compound CAS Number
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3145405) - continued
137645044 Flotation Tailings 16.3%EP1308148-004 ----EK057G: Nitrite as N --------1050.5 mg/L 13070 ----
ED045G: Chloride Discrete analyser (QCLot: 3145406)
137645044 Flotation Tailings 16.3%EP1308148-004 16887-00-6ED045G: Chloride --------1051000 mg/L 13070 ----
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3145407)
137645044 Flotation Tailings 16.3%EP1308148-004 14808-79-8ED041G: Sulfate as SO4 - Turbidimetric --------97.1100 mg/L 13070 ----
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3145584)
AnonymousEP1308416-001 ----EK059G: Nitrite + Nitrate as N --------1100.5 mg/L 13070 ----
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3146613)
AnonymousEP1308354-001 ----EK067G: Total Phosphorus as P --------96.61 mg/L 13070 ----
EG020W: Water Leachable Metals by ICP-MS (QCLot: 3160803)
137645044 Hydromet SampleEP1308148-002 7440-38-2EG020A-W: Arsenic --------1091.000 mg/L 13070 ----
7440-41-7EG020A-W: Beryllium --------1061.000 mg/L 13070 ----
7440-39-3EG020A-W: Barium --------1041.000 mg/L 13070 ----
7440-48-4EG020A-W: Cobalt --------1021.000 mg/L 13070 ----
7440-50-8EG020A-W: Copper --------98.01.000 mg/L 13070 ----
7439-92-1EG020A-W: Lead --------1021.000 mg/L 13070 ----
7439-96-5EG020A-W: Manganese --------94.21.000 mg/L 13070 ----
7440-02-0EG020A-W: Nickel --------95.51.000 mg/L 13070 ----
7440-66-6EG020A-W: Zinc --------1041.000 mg/L 13070 ----
EK067G: Total Phosphorus as P by Discrete Analyser (QCLot: 3160813)
137645044 Flotation Tailings 16.3%EP1308148-001 ----EK067G: Total Phosphorus as P --------85.71 mg/L 13070 ----
EK057G: Nitrite as N by Discrete Analyser (QCLot: 3161919)
137645044 Flotation Tailings 16.3%EP1308148-001 ----EK057G: Nitrite as N --------1080.5 mg/L 13070 ----
ED045G: Chloride Discrete analyser (QCLot: 3161920)
137645044 Flotation Tailings 16.3%EP1308148-001 16887-00-6ED045G: Chloride --------99.91000 mg/L 13070 ----
ED041G: Sulfate (Turbidimetric) as SO4 2- by DA (QCLot: 3161921)
137645044 Flotation Tailings 16.3%EP1308148-001 14808-79-8ED041G: Sulfate as SO4 - Turbidimetric --------97.5100 mg/L 13070 ----
EK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser (QCLot: 3162031)
137645044 Flotation Tailings 16.3%EP1308148-001 ----EK059G: Nitrite + Nitrate as N --------87.60.6 mg/L 13070 ----
True
Environmental
INTERPRETIVE QUALITY CONTROL REPORTWork Order : EP1308148 Page : 1 of 19
:Amendment 7
:: LaboratoryClient Environmental Division PerthGOLDER ASSOCIATES
: :ContactContact RICARDO FANNI Scott James
:: AddressAddress PO BOX 1914
WEST PERTH WA 6872
10 Hod Way Malaga WA Australia 6090
:: E-mailE-mail [email protected] [email protected]
:: TelephoneTelephone +61 08 9213 7600 +61-8-9209 7655
:: FacsimileFacsimile +61 08 9427 7611 +61-8-9209 7600
:Project Browns Range QC Level : NEPM 2013 Schedule B(3) and ALS QCS3 requirement
Site : Browns Range
:C-O-C number ---- Date Samples Received : 25-OCT-2013
H.C.:Sampler Issue Date : 31-MAR-2014
:Order number ----
No. of samples received : 4
Quote number : EP/825/13 V4 No. of samples analysed : 4
This report supersedes any previous report(s) with this reference. Results apply to the sample(s) as submitted. All pages of this report have been checked and approved for release.
This Interpretive Quality Control Report contains the following information:
l Analysis Holding Time Compliance
l Quality Control Parameter Frequency Compliance
l Brief Method Summaries
l Summary of Outliers
Address 10 Hod Way Malaga WA Australia 6090 | PHONE +61-8-9209 7655 | Facsimile +61-8-9209 7600
Environmental Division Perth ABN 84 009 936 029 Part of the ALS Group An ALS Limited Company
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Analysis Holding Time Compliance
This report summarizes extraction / preparation and analysis times and compares each with recommended holding times (USEPA SW 846, APHA, AS and NEPM) based on the sample container provided. Dates
reported represent first date of extraction or analysis and preclude subsequent dilutions and reruns. A listing of breaches (if any) is provided herein.
Holding time for leachate methods (e.g. TCLP) vary according to the analytes reported. Assessment compares the leach date with the shortest analyte holding time for the equivalent soil method. These are: organics
14 days, mercury 28 days & other metals 180 days. A recorded breach does not guarantee a breach for all non-volatile parameters.
Holding times for VOC in soils vary according to analytes of interest. Vinyl Chloride and Styrene holding time is 7 days; others 14 days. A recorded breach does not guarantee a breach for all VOC analytes and
should be verified in case the reported breach is a false positive or Vinyl Chloride and Styrene are not key analytes of interest/concern.
Matrix: SOIL Evaluation: û = Holding time breach ; ü = Within holding time.
AnalysisExtraction / PreparationSample DateMethod
EvaluationDue for analysisDate analysedEvaluationDue for extractionDate extractedContainer / Client Sample ID(s)
EA005P: pH by PC Titrator
Clear Plastic Bottle - Natural (EA005-P)
137645044 Flotation Tailings - 16.3% 15-NOV-201315-NOV-2013 07-NOV-2013---15-NOV-2013 ---- üClear Plastic Bottle - Natural (EA005-P)
137645044 Hydromet Sample 15-NOV-201315-NOV-2013 19-NOV-2013---15-NOV-2013 ---- ûEA010P: Conductivity by PC Titrator
Clear Plastic Bottle - Natural (EA010-P)
137645044 Flotation Tailings - 16.3% 13-DEC-201313-DEC-2013 07-NOV-2013---15-NOV-2013 ---- üClear Plastic Bottle - Natural (EA010-P)
137645044 Hydromet Sample 13-DEC-201313-DEC-2013 19-NOV-2013---15-NOV-2013 ---- üEA011: Net Acid Generation
Soil Glass Jar - Unpreserved (EA011)
137645044 Flotation Tailings - 16.3% 05-MAY-201425-OCT-2014 06-NOV-201306-NOV-201325-OCT-2013 ü üSoil Glass Jar - Unpreserved (EA011)
137645044 Hydromet Sample 23-APR-201425-OCT-2014 05-NOV-201325-OCT-201325-OCT-2013 ü üEA013: Acid Neutralising Capacity
Soil Glass Jar - Unpreserved (EA013)
137645044 Flotation Tailings - 16.3% 05-MAY-201425-OCT-2014 06-NOV-201306-NOV-201325-OCT-2013 ü üSoil Glass Jar - Unpreserved (EA013)
137645044 Hydromet Sample 23-APR-201425-OCT-2014 04-NOV-201325-OCT-201325-OCT-2013 ü üEA031: pH (saturated paste)
Soil Glass Jar - Unpreserved (EA031)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 23-APR-2014---- 19-NOV-2013----25-OCT-2013 ---- üEA032: Electrical Conductivity (saturated paste)
Soil Glass Jar - Unpreserved (EA032)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 23-APR-2014---- 19-NOV-2013----25-OCT-2013 ---- üEA055: Moisture Content
Soil Glass Jar - Unpreserved (EA055-103)
137645044 Hydromet Sample 08-NOV-2013---- 04-NOV-2013----25-OCT-2013 ---- üSoil Glass Jar - Unpreserved (EA055-103)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 08-NOV-2013---- 07-NOV-2013----25-OCT-2013 ---- ü
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Matrix: SOIL Evaluation: û = Holding time breach ; ü = Within holding time.
AnalysisExtraction / PreparationSample DateMethod
EvaluationDue for analysisDate analysedEvaluationDue for extractionDate extractedContainer / Client Sample ID(s)
ED037P: Alkalinity by PC Titrator
Clear Plastic Bottle - Natural (ED037-P)
137645044 Flotation Tailings - 16.3% 29-NOV-201329-NOV-2013 07-NOV-2013---15-NOV-2013 ---- üClear Plastic Bottle - Natural (ED037-P)
137645044 Hydromet Sample 29-NOV-201329-NOV-2013 19-NOV-2013---15-NOV-2013 ---- üED038A: Acidity
Clear Plastic Bottle - Natural (ED038)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 29-NOV-2013---- 15-NOV-2013----15-NOV-2013 ---- üED040: Sulfur as SO4 2-
Soil Glass Jar - Unpreserved (ED040T)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 18-DEC-201301-NOV-2013 20-NOV-201320-NOV-201325-OCT-2013 û üED040T: Total Major Anions
Clear Plastic Bottle - Natural (ED040T)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 13-DEC-201313-DEC-2013 18-NOV-201318-NOV-201315-NOV-2013 ü üED040W: Water Leachable Sulfate by ICPAES
Clear Plastic Bottle - Natural (ED040W)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 13-DEC-201313-DEC-2013 15-NOV-201315-NOV-201315-NOV-2013 ü üED041G: Sulfate (Turbidimetric) as SO4 2- by DA
Clear Plastic Bottle - Natural (ED041G)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 13-DEC-201313-DEC-2013 15-NOV-2013---15-NOV-2013 ---- üED042T: Total Sulfur by LECO
80* dried soil (ED042T)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 12-MAY-201401-NOV-2013 15-NOV-201313-NOV-201325-OCT-2013 û üED045G: Chloride Discrete analyser
Clear Plastic Bottle - Natural (ED045G)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 13-DEC-201313-DEC-2013 15-NOV-2013---15-NOV-2013 ---- üED093F: Dissolved Major Cations
Clear Plastic Bottle - Natural (ED093F)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 22-NOV-201322-NOV-2013 18-NOV-2013---15-NOV-2013 ---- üED093T: Total Major Cations
Soil Glass Jar - Unpreserved (ED093T)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 23-APR-201423-APR-2014 19-FEB-201419-FEB-201425-OCT-2013 ü üEG005T: Total Metals by ICP-AES
Soil Glass Jar - Unpreserved (EG005T)
137645044 Hydromet Sample 23-APR-201423-APR-2014 05-NOV-201304-NOV-201325-OCT-2013 ü üSoil Glass Jar - Unpreserved (EG005T)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 23-APR-201423-APR-2014 14-NOV-201314-NOV-201325-OCT-2013 ü üEG020W: Water Leachable Metals by ICP-MS
Clear Plastic Bottle - Nitric Acid; Unfiltered (EG020A-W)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 14-MAY-201414-MAY-2014 15-NOV-201315-NOV-201315-NOV-2013 ü ü
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Matrix: SOIL Evaluation: û = Holding time breach ; ü = Within holding time.
AnalysisExtraction / PreparationSample DateMethod
EvaluationDue for analysisDate analysedEvaluationDue for extractionDate extractedContainer / Client Sample ID(s)
EG020W: Water Leachable Metals by ICP-MS
Clear Plastic Bottle - Nitric Acid; Unfiltered (EG020B-W)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 14-MAY-201414-MAY-2014 15-NOV-201315-NOV-201315-NOV-2013 ü üEG020W: Water Leachable Metals by ICP-MS
Clear Plastic Bottle - Nitric Acid; Unfiltered (EG020D-W)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 14-MAY-201414-MAY-2014 15-NOV-201315-NOV-201315-NOV-2013 ü üEG020T: Total Metals by ICP-MS
Soil Glass Jar - Unpreserved (EG020X-T)
137645044 Hydromet Sample 23-APR-201423-APR-2014 05-NOV-201304-NOV-201325-OCT-2013 ü üSoil Glass Jar - Unpreserved (EG020X-T)
137645044 Flotation Tailings - 16.3% 23-APR-201423-APR-2014 14-NOV-201314-NOV-201325-OCT-2013 ü üEG020T: Total Metals by ICP-MS
Soil Glass Jar - Unpreserved (EG020Y-T)
137645044 Hydromet Sample 23-APR-201423-APR-2014 05-NOV-201304-NOV-201325-OCT-2013 ü üSoil Glass Jar - Unpreserved (EG020Y-T)
137645044 Flotation Tailings - 16.3% 23-APR-201423-APR-2014 14-NOV-201314-NOV-201325-OCT-2013 ü üEG020T: Total Metals by ICP-MS
Soil Glass Jar - Unpreserved (EG020Z-T)
137645044 Hydromet Sample 23-APR-201423-APR-2014 05-NOV-201304-NOV-201325-OCT-2013 ü üSoil Glass Jar - Unpreserved (EG020Z-T)
137645044 Flotation Tailings - 16.3% 23-APR-201423-APR-2014 14-NOV-201314-NOV-201325-OCT-2013 ü üEG035T: Total Recoverable Mercury by FIMS
Soil Glass Jar - Unpreserved (EG035T)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 22-NOV-201322-NOV-2013 19-NOV-201319-NOV-201325-OCT-2013 ü üEG035W: Water Leachable Mercury by FIMS
Clear Plastic Bottle - Nitric Acid; Unfiltered (EG035W)
137645044 Flotation Tailings - 16.3% 13-DEC-2013---- 19-NOV-2013----15-NOV-2013 ---- üEK057G: Nitrite as N by Discrete Analyser
Clear Plastic Bottle - Natural (EK057G)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 17-NOV-201317-NOV-2013 15-NOV-2013---15-NOV-2013 ---- üEK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser
Clear Plastic Bottle - Sulfuric Acid (EK059G)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 13-DEC-201313-DEC-2013 15-NOV-2013---15-NOV-2013 ---- üEK067G: Total Phosphorus as P by Discrete Analyser
Clear Plastic Bottle - Sulfuric Acid (EK067G)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 13-DEC-201313-DEC-2013 18-NOV-201318-NOV-201315-NOV-2013 ü üEN60: Bottle Leaching Procedure
LabSplit: Leach for organics and other tests (EN60-DIa)
137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 08-NOV-201308-NOV-2013 15-NOV-2013---25-OCT-2013 ---- ûMatrix: WATER Evaluation: û = Holding time breach ; ü = Within holding time.
AnalysisExtraction / PreparationSample DateMethod
EvaluationDue for analysisDate analysedEvaluationDue for extractionDate extractedContainer / Client Sample ID(s)
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Matrix: WATER Evaluation: û = Holding time breach ; ü = Within holding time.
AnalysisExtraction / PreparationSample DateMethod
EvaluationDue for analysisDate analysedEvaluationDue for extractionDate extractedContainer / Client Sample ID(s)
EA005P: pH by PC Titrator
Clear Plastic Bottle - Natural (EA005-P)
137645044 Flotation Tailings - 16.3% 25-OCT-201325-OCT-2013 07-NOV-2013---25-OCT-2013 ---- ûClear Plastic Bottle - Natural (EA005-P)
137645044 Treated Waste Water 25-OCT-201325-OCT-2013 31-OCT-2013---25-OCT-2013 ---- ûEA010P: Conductivity by PC Titrator
Clear Plastic Bottle - Natural (EA010-P)
137645044 Flotation Tailings - 16.3% 22-NOV-201322-NOV-2013 07-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Natural (EA010-P)
137645044 Treated Waste Water 22-NOV-201322-NOV-2013 31-OCT-2013---25-OCT-2013 ---- üED037P: Alkalinity by PC Titrator
Clear Plastic Bottle - Natural (ED037-P)
137645044 Flotation Tailings - 16.3% 08-NOV-201308-NOV-2013 07-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Natural (ED037-P)
137645044 Treated Waste Water 08-NOV-201308-NOV-2013 31-OCT-2013---25-OCT-2013 ---- üED038A: Acidity
Clear Plastic Bottle - Natural (ED038)
137645044 Treated Waste Water 08-NOV-2013---- 04-NOV-2013----25-OCT-2013 ---- üClear Plastic Bottle - Natural (ED038)
137645044 Flotation Tailings - 16.3% 08-NOV-2013---- 07-NOV-2013----25-OCT-2013 ---- üED040F: Dissolved Major Anions
Clear Plastic Bottle - Natural (ED040F)
137645044 Treated Waste Water 22-NOV-201322-NOV-2013 04-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Natural (ED040F)
137645044 Flotation Tailings - 16.3% 22-NOV-201322-NOV-2013 07-NOV-2013---25-OCT-2013 ---- üED041G: Sulfate (Turbidimetric) as SO4 2- by DA
Clear Plastic Bottle - Natural (ED041G)
137645044 Flotation Tailings - 16.3% 22-NOV-201322-NOV-2013 06-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Natural (ED041G)
137645044 Treated Waste Water 22-NOV-201322-NOV-2013 25-OCT-2013---25-OCT-2013 ---- üED045G: Chloride Discrete analyser
Clear Plastic Bottle - Natural (ED045G)
137645044 Flotation Tailings - 16.3% 22-NOV-201322-NOV-2013 06-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Natural (ED045G)
137645044 Treated Waste Water 22-NOV-201322-NOV-2013 25-OCT-2013---25-OCT-2013 ---- üED093F: Dissolved Major Cations
Clear Plastic Bottle - Natural (ED093F)
137645044 Treated Waste Water 01-NOV-201301-NOV-2013 04-NOV-2013---25-OCT-2013 ---- ûClear Plastic Bottle - Natural (ED093F)
137645044 Flotation Tailings - 16.3% 01-NOV-201301-NOV-2013 07-NOV-2013---25-OCT-2013 ---- û
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Matrix: WATER Evaluation: û = Holding time breach ; ü = Within holding time.
AnalysisExtraction / PreparationSample DateMethod
EvaluationDue for analysisDate analysedEvaluationDue for extractionDate extractedContainer / Client Sample ID(s)
EG020F: Dissolved Metals by ICP-MS
Clear Plastic Bottle - Filtered; Lab-acidified (EG020A-F)
137645044 Treated Waste Water 23-APR-201423-APR-2014 01-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Filtered; Lab-acidified (EG020A-F)
137645044 Flotation Tailings - 16.3% 23-APR-201423-APR-2014 08-NOV-2013---25-OCT-2013 ---- üEG020F: Dissolved Metals by ICP-MS
Clear Plastic Bottle - Filtered; Lab-acidified (EG020B-F)
137645044 Treated Waste Water 23-APR-201423-APR-2014 01-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Filtered; Lab-acidified (EG020B-F)
137645044 Flotation Tailings - 16.3% 23-APR-201423-APR-2014 08-NOV-2013---25-OCT-2013 ---- üEG020F: Dissolved Metals by ICP-MS
Clear Plastic Bottle - Filtered; Lab-acidified (EG020D-F)
137645044 Treated Waste Water 23-APR-201423-APR-2014 01-NOV-2013---25-OCT-2013 ---- üClear Plastic Bottle - Filtered; Lab-acidified (EG020D-F)
137645044 Flotation Tailings - 16.3% 23-APR-201423-APR-2014 08-NOV-2013---25-OCT-2013 ---- üEK057G: Nitrite as N by Discrete Analyser
Clear Plastic Bottle - Natural (EK057G)
137645044 Treated Waste Water 26-OCT-201326-OCT-2013 25-OCT-2013---25-OCT-2013 ---- üClear Plastic Bottle - Natural (EK057G)
137645044 Flotation Tailings - 16.3% 27-OCT-201327-OCT-2013 06-NOV-2013---25-OCT-2013 ---- ûEK059G: Nitrite plus Nitrate as N (NOx) by Discrete Analyser
Clear Plastic Bottle - Natural (EK059G)
137645044 Treated Waste Water 26-OCT-201326-OCT-2013 25-OCT-2013---25-OCT-2013 ---- üClear Plastic Bottle - Sulfuric Acid (EK059G)
137645044 Flotation Tailings - 16.3% 22-NOV-201322-NOV-2013 06-NOV-2013---25-OCT-2013 ---- üEK067G: Total Phosphorus as P by Discrete Analyser
Clear Plastic Bottle - Sulfuric Acid (EK067G)
137645044 Treated Waste Water 22-NOV-201322-NOV-2013 06-NOV-201305-NOV-201325-OCT-2013 ü üClear Plastic Bottle - Sulfuric Acid (EK067G)
137645044 Flotation Tailings - 16.3% 22-NOV-201322-NOV-2013 11-NOV-201311-NOV-201325-OCT-2013 ü ü
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Quality Control Parameter Frequency ComplianceThe following report summarises the frequency of laboratory QC samples analysed within the analytical lot(s) in which the submitted sample(s) was(where) processed. Actual rate should be greater than or equal to
the expected rate. A listing of breaches is provided in the Summary of Outliers.
Matrix: SOIL Evaluation: û = Quality Control frequency not within specification ; ü = Quality Control frequency within specification.
Quality Control SpecificationQuality Control Sample Type
ExpectedQC Regular Actual
Rate (%)Quality Control Sample Type CountEvaluationAnalytical Methods Method
Laboratory Duplicates (DUP)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üAcid Neutralising Capacity (ANC) EA013
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üElectrical Conductivity (Saturated Paste) EA032
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üMajor Cations by ICPAES - Total ED093T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üMoisture Content EA055-103
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üNet Acid Generation EA011
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üpH (Saturated Paste) EA031
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üSulfate as SO4 2- Total ED040T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üSulfur - Total as S (LECO) ED042T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üTotal Mercury by FIMS EG035T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üTotal Metals by ICP-AES EG005T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üTotal Metals by ICP-MS - Suite X EG020X-T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üTotal Metals by ICP-MS - Suite Y EG020Y-T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üTotal Metals by ICP-MS - Suite Z EG020Z-T
Laboratory Control Samples (LCS)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üAcid Neutralising Capacity (ANC) EA013
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üElectrical Conductivity (Saturated Paste) EA032
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üNet Acid Generation EA011
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üpH (Saturated Paste) EA031
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üSulfur - Total as S (LECO) ED042T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üTotal Mercury by FIMS EG035T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üTotal Metals by ICP-AES EG005T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite X EG020X-T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite Y EG020Y-T
Method Blanks (MB)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üAcid Neutralising Capacity (ANC) EA013
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üElectrical Conductivity (Saturated Paste) EA032
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üMajor Cations by ICPAES - Total ED093T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üSulfate as SO4 2- Total ED040T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üSulfur - Total as S (LECO) ED042T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üTotal Mercury by FIMS EG035T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üTotal Metals by ICP-AES EG005T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite X EG020X-T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite Y EG020Y-T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite Z EG020Z-T
Matrix Spikes (MS)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üTotal Mercury by FIMS EG035T
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Matrix: SOIL Evaluation: û = Quality Control frequency not within specification ; ü = Quality Control frequency within specification.
Quality Control SpecificationQuality Control Sample Type
ExpectedQC Regular Actual
Rate (%)Quality Control Sample Type CountEvaluationAnalytical Methods Method
Matrix Spikes (MS) - Continued
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üTotal Metals by ICP-AES EG005T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite X EG020X-T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üTotal Metals by ICP-MS - Suite Y EG020Y-T
Matrix: WATER Evaluation: û = Quality Control frequency not within specification ; ü = Quality Control frequency within specification.
Quality Control SpecificationQuality Control Sample Type
ExpectedQC Regular Actual
Rate (%)Quality Control Sample Type CountEvaluationAnalytical Methods Method
Laboratory Duplicates (DUP)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 14.7 10.05 34 üAcidity as Calcium Carbonate ED038
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 17.9 10.07 39 üAlkalinity by PC Titrator ED037-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 10.03 19 üChloride by Discrete Analyser ED045G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 17.5 10.07 40 üConductivity by PC Titrator EA010-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üDissolved Metals by ICP-MS - Suite A EG020A-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üDissolved Metals by ICP-MS - Suite B EG020B-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.02 2 üDissolved Metals by ICP-MS - Suite D EG020D-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.02 4 üMajor Anions - Dissolved ED040F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üMajor Anions - Total ED040T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 10.03 19 üMajor Cations - Dissolved ED093F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 17.2 10.05 29 üNitrite and Nitrate as N (NOx) by Discrete Analyser EK059G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 18.8 10.03 16 üNitrite as N by Discrete Analyser EK057G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 17.5 10.07 40 üpH by PC Titrator EA005-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 10.03 19 üSulfate (Turbidimetric) as SO4 2- by Discrete Analyser ED041G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 12.2 10.05 41 üTotal Phosphorus as P By Discrete Analyser EK067G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üWater Leachable Anions by ICPAES ED040W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 10.01 1 üWater Leachable Mercury by FIMS EG035W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üWater Leachable Metals by ICP-MS - Suite A EG020A-W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üWater Leachable Metals by ICP-MS - Suite B EG020B-W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 10.01 2 üWater Leachable Metals by ICP-MS - Suite C EG020D-W
Laboratory Control Samples (LCS)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 8.8 5.03 34 üAcidity as Calcium Carbonate ED038
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 20.5 10.08 39 üAlkalinity by PC Titrator ED037-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 31.6 10.06 19 üChloride by Discrete Analyser ED045G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.0 5.04 40 üConductivity by PC Titrator EA010-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üDissolved Metals by ICP-MS - Suite A EG020A-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üDissolved Metals by ICP-MS - Suite B EG020B-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.02 4 üMajor Anions - Dissolved ED040F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 5.03 19 üMajor Cations - Dissolved ED093F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.3 5.03 29 üNitrite and Nitrate as N (NOx) by Discrete Analyser EK059G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 18.8 5.03 16 üNitrite as N by Discrete Analyser EK057G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 20.0 10.08 40 üpH by PC Titrator EA005-P
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Matrix: WATER Evaluation: û = Quality Control frequency not within specification ; ü = Quality Control frequency within specification.
Quality Control SpecificationQuality Control Sample Type
ExpectedQC Regular Actual
Rate (%)Quality Control Sample Type CountEvaluationAnalytical Methods Method
Laboratory Control Samples (LCS) - Continued
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 30.0 10.06 20 üSulfate (Turbidimetric) as SO4 2- by Discrete Analyser ED041G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 7.3 5.03 41 üTotal Phosphorus as P By Discrete Analyser EK067G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.01 1 üWater Leachable Mercury by FIMS EG035W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Metals by ICP-MS - Suite A EG020A-W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Metals by ICP-MS - Suite B EG020B-W
Method Blanks (MB)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.3 5.04 39 üAlkalinity by PC Titrator ED037-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 5.03 19 üChloride by Discrete Analyser ED045G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.0 5.04 40 üConductivity by PC Titrator EA010-P
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üDissolved Metals by ICP-MS - Suite A EG020A-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üDissolved Metals by ICP-MS - Suite B EG020B-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.02 2 üDissolved Metals by ICP-MS - Suite D EG020D-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.02 4 üMajor Anions - Dissolved ED040F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üMajor Anions - Total ED040T
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 5.03 19 üMajor Cations - Dissolved ED093F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.3 5.03 29 üNitrite and Nitrate as N (NOx) by Discrete Analyser EK059G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 18.8 5.03 16 üNitrite as N by Discrete Analyser EK057G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.0 5.03 20 üSulfate (Turbidimetric) as SO4 2- by Discrete Analyser ED041G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 7.3 5.03 41 üTotal Phosphorus as P By Discrete Analyser EK067G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Anions by ICPAES ED040W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.01 1 üWater Leachable Mercury by FIMS EG035W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Metals by ICP-MS - Suite A EG020A-W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Metals by ICP-MS - Suite B EG020B-W
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Metals by ICP-MS - Suite C EG020D-W
Matrix Spikes (MS)
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 15.8 5.03 19 üChloride by Discrete Analyser ED045G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 100.0 5.01 1 üDissolved Metals by ICP-MS - Suite A EG020A-F
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.3 5.03 29 üNitrite and Nitrate as N (NOx) by Discrete Analyser EK059G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 18.8 5.03 16 üNitrite as N by Discrete Analyser EK057G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 10.5 5.02 19 üSulfate (Turbidimetric) as SO4 2- by Discrete Analyser ED041G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 7.3 5.03 41 üTotal Phosphorus as P By Discrete Analyser EK067G
NEPM 2013 Schedule B(3) and ALS QCS3 requirement 50.0 5.01 2 üWater Leachable Metals by ICP-MS - Suite A EG020A-W
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Brief Method SummariesThe analytical procedures used by the Environmental Division have been developed from established internationally recognized procedures such as those published by the US EPA, APHA, AS and NEPM. In house
developed procedures are employed in the absence of documented standards or by client request. The following report provides brief descriptions of the analytical procedures employed for results reported in the
Certificate of Analysis. Sources from which ALS methods have been developed are provided within the Method Descriptions.
Analytical Methods Method DescriptionsMatrixMethod
APHA 21st ed. 4500 H+ B. This procedure determines pH of water samples by automated ISE. This method is
compliant with NEPM (2013) Schedule B(3)
pH by PC Titrator EA005-P SOIL
Coastech Research (Canada)(Mod.). NAPP = Acid Production Potential (APP or MAP- Maximum Acid Potential)
minus Neutralising Capacity (ANC). NAPP may be +ve, zero or -ve.
Net Acid Production Potential EA009 SOIL
APHA 21st ed., 2510 B This procedure determines conductivity by automated ISE. This method is compliant with
NEPM (2013) Schedule B(3)
Conductivity by PC Titrator EA010-P SOIL
Miller (1998) Titremetric procedure determines net acidity in a soil following peroxide oxidation. Titrations to both
pH 4.5 and pH 7 are reported.
Net Acid Generation EA011 SOIL
USEPA 600/2-78-054, I. Miller (2000). A fizz test is done to semiquanititatively estimate the likely reactivity. The
soil is then reacted with an known excess quanitity of an appropriate acid. Titration determines the acid
remaining, and the ANC can be calculated from comparison with a blank titration.
Acid Neutralising Capacity (ANC) EA013 SOIL
USEPA 600/2 - 78 - 054 - pH determined on a saturated paste by ISE.pH (Saturated Paste) EA031 SOIL
USEPA 600/2 - 78 - 054 - conductivity determined on a saturated paste.Electrical Conductivity (Saturated Paste) EA032 SOIL
A gravimetric procedure based on weight loss over a 12 hour drying period at 103-105 degrees C. This method
is compliant with NEPM (2013) Schedule B(3) Section 7.1 and Table 1 (14 day holding time).
Moisture Content EA055-103 SOIL
APHA 21st ed., 2320 B This procedure determines alkalinity by automated measurement (e.g. PC Titrate) using
pH 4.5 for indicating the total alkalinity end-point. This method is compliant with NEPM (2013) Schedule B(3)
Alkalinity by PC Titrator ED037-P SOIL
APHA 21st ed., 2310 B Acidity is determined by titration with a standardised alkali to an end-point pH of 8.3. This
method is compliant with NEPM (2013) Schedule B(3)
Acidity as Calcium Carbonate ED038 SOIL
In-house. Total Sulfate is determined off a HCl digestion by ICPAES as S , and reported as SO4Sulfate as SO4 2- Total ED040T SOIL
(APHA 21st ed., 3120, ALS QWI-EN/ED040) Sulfur and/or Silicon content is determined by ICP/AES and reported
as Sulfate and/or Silica after conversion by gravimetric factor.
Water Leachable Anions by ICPAES ED040W SOIL
APHA 21st ed., 4500-SO4 Dissolved sulfate is determined in a 0.45um filtered sample. Sulfate ions are
converted to a barium sulfate suspension in an acetic acid medium with barium chloride. Light absorbance of
the BaSO4 suspension is measured by a photometer and the SO4-2 concentration is determined by comparison
of the reading with a standard curve. This method is compliant with NEPM (2013) Schedule B(3)
Sulfate (Turbidimetric) as SO4 2- by
Discrete Analyser
ED041G SOIL
In-house. Dried and pulverised sample is combusted in a high temperature furnace in the presence of strong
oxidants / catalysts. The evolved S (as SO2) is measured by infra-red detector
Sulfur - Total as S (LECO) ED042T SOIL
APHA 21st ed., 4500 Cl - G.The thiocyanate ion is liberated from mercuric thiocyanate through sequestration of
mercury by the chloride ion to form non-ionised mercuric chloride.in the presence of ferric ions the librated
thiocynate forms highly-coloured ferric thiocynate which is measured at 480 nm APHA 21st edition seal method 2
017-1-L april 2003
Chloride by Discrete Analyser ED045G SOIL
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Analytical Methods Method DescriptionsMatrixMethod
Major Cations is determined based on APHA 21st ed., 3120; USEPA SW 846 - 6010 The ICPAES technique
ionises the 0.45um filtered sample atoms emitting a characteristic spectrum. This spectrum is then compared
against matrix matched standards for quantification. This method is compliant with NEPM (2013) Schedule B(3)
Sodium Adsorption Ratio is calculated from Ca, Mg and Na which determined by ALS in house method
QWI-EN/ED093F. This method is compliant with NEPM (2013) Schedule B(3)
Hardness parameters are calculated based on APHA 21st ed., 2340 B. This method is compliant with NEPM
(2013) Schedule B(3)
Major Cations - Dissolved ED093F SOIL
APHA 21st ed., 3120; USEPA SW 846 - 6010 (ICPAES) Major cations are determined following an appropriate
acid digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic
spectrum based on metals present. Intensities at selected wavelengths are compared against those of matrix
matched standards. This method is compliant with NEPM (2013) Schedule B(3)
Major Cations by ICPAES - Total ED093T SOIL
(APHA 21st ed., 3120; USEPA SW 846 - 6010) (ICPAES) Metals are determined following an appropriate acid
digestion of the soil. The ICPAES technique ionises samples in a plasma, emitting a characteristic spectrum
based on metals present. Intensities at selected wavelengths are compared against those of matrix matched
standards. This method is compliant with NEPM (2013) Schedule B(3)
Total Metals by ICP-AES EG005T SOIL
(APHA 21st ed., 3125; USEPA SW846 - 6020, AS 4439.3, ALS QWI-EN/EG020): The ICPMS technique utilizes a
highly efficient argon plasma to ionize selected elements. Ions are then passed into a high vacuum mass
spectrometer, which separates the analytes based on their distinct mass to charge ratios prior to their
measurement by a discrete dynode ion detector.
Water Leachable Metals by ICP-MS -
Suite A
EG020A-W SOIL
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): The ICPMS technique utilizes a highly
efficient argon plasma to ionize selected elements. Ions are then passed into a high vacuum mass
spectrometer, which separates the analytes based on their distinct mass to charge ratios prior to their
measurement by a discrete dynode ion detector.
Water Leachable Metals by ICP-MS -
Suite B
EG020B-W SOIL
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): The ICPMS technique utilizes a highly
efficient argon plasma to ionize selected elements. Ions are then passed into a high vacuum mass
spectrometer, which separates the analytes based on their distinct mass to charge ratios prior to their
measurement by a discrete dynode ion detector.
Water Leachable Metals by ICP-MS -
Suite C
EG020D-W SOIL
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): The ICPMS technique utilizes a highly
efficient argon plasma to ionize selected elements. Ions are then passed into a high vacuum mass
spectrometer, which separates the analytes based on their distinct mass to charge ratios prior to their
measurement by a discrete dynode ion detector.
Total Metals by ICP-MS - Suite X EG020X-T SOIL
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): The ICPMS technique utilizes a highly
efficient argon plasma to ionize selected elements. Ions are then passed into a high vacuum mass
spectrometer, which separates the analytes based on their distinct mass to charge ratios prior to their
measurement by a discrete dynode ion detector.
Total Metals by ICP-MS - Suite Y EG020Y-T SOIL
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): The ICPMS technique utilizes a highly
efficient argon plasma to ionize selected elements. Ions are then passed into a high vacuum mass
spectrometer, which separates the analytes based on their distinct mass to charge ratios prior to their
measurement by a discrete dynode ion detector.
Total Metals by ICP-MS - Suite Z EG020Z-T SOIL
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Analytical Methods Method DescriptionsMatrixMethod
AS 3550, APHA 21st ed., 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an
automated flameless atomic absorption technique. Mercury in solids are determined following an appropriate
acid digestion. Ionic mercury is reduced online to atomic mercury vapour by SnCl2 which is then purged into a
heated quartz cell. Quantification is by comparing absorbance against a calibration curve. This method is
compliant with NEPM (2013) Schedule B(3)
Total Mercury by FIMS EG035T SOIL
AS 3550, APHA 21st ed. 3112 Hg - B (Flow-injection (SnCl2)(Cold Vapour generation) AAS) FIM-AAS is an
automated flameless atomic absorption technique. A bromate/bromide reagent is used to oxidise any organic
mercury compounds in the TCLP solution. The ionic mercury is reduced online to atomic mercury vapour by
SnCl2 which is then purged into a heated quartz cell. Quantification is by comparing absorbance against a
calibration curve. This method is compliant with NEPM (2013) Schedule B(3)
Water Leachable Mercury by FIMS EG035W SOIL
APHA 21st ed., 4500-NO2- B. Nitrite is determined by direct colourimetry by Discrete Analyser. This method is
compliant with NEPM (2013) Schedule B(3)
Nitrite as N by Discrete Analyser EK057G SOIL
APHA 21st ed., 4500-NO3- F. Nitrate is reduced to nitrite by way of a chemical reduction followed by quantification
by Discrete Analyser. Nitrite is determined seperately by direct colourimetry and result for Nitrate calculated as
the difference between the two results. This method is compliant with NEPM (2013) Schedule B(3)
Nitrate as N by Discrete Analyser EK058G SOIL
APHA 21st ed., 4500-NO3- F. Combined oxidised Nitrogen (NO2+NO3) is determined by Chemical Reduction
and direct colourimetry by Discrete Analyser. This method is compliant with NEPM (2013) Schedule B(3)
Nitrite and Nitrate as N (NOx) by Discrete
Analyser
EK059G SOIL
APHA 21st ed., 4500-P H, Jirka et al (1976), Zhang et al (2006). This procedure involves sulphuric acid digestion
of a sample aliquot to break phosphorus down to orthophosphate. The orthophosphate reacts with ammonium
molybdate and antimony potassium tartrate to form a complex which is then reduced and its concentration
measured at 880nm using discrete analyser. This method is compliant with NEPM (2013) Schedule B(3)
Total Phosphorus as P By Discrete
Analyser
EK067G SOIL
APHA 21st Ed. 1030F. The Ionic Balance is calculated based on the major Anions and Cations. The major
anions include Alkalinity, Chloride and Sulfate which determined by PCT and DA. The Cations are determined by
Turbi SO4 by DA. This method is compliant with NEPM (2013) Schedule B(3)
Ionic Balance by PCT DA and Turbi SO4
DA
EN055 - PG SOIL
APHA 21st ed. 4500 H+ B. This procedure determines pH of water samples by automated ISE. This method is
compliant with NEPM (2013) Schedule B(3)
pH by PC Titrator EA005-P WATER
APHA 21st ed., 2510 B This procedure determines conductivity by automated ISE. This method is compliant with
NEPM (2013) Schedule B(3)
Conductivity by PC Titrator EA010-P WATER
APHA 21st ed., 2320 B This procedure determines alkalinity by automated measurement (e.g. PC Titrate) using
pH 4.5 for indicating the total alkalinity end-point. This method is compliant with NEPM (2013) Schedule B(3)
Alkalinity by PC Titrator ED037-P WATER
APHA 21st ed., 2310 B Acidity is determined by titration with a standardised alkali to an end-point pH of 8.3. This
method is compliant with NEPM (2013) Schedule B(3)
Acidity as Calcium Carbonate ED038 WATER
APHA 21st ed., 3120. The 0.45um filtered samples are determined by ICP/AES for Sulfur and/or Silcon content
and reported as Sulfate and/or Silica after conversion by gravimetric factor.
Major Anions - Dissolved ED040F WATER
APHA 21st ed., 4500-SO4 Dissolved sulfate is determined in a 0.45um filtered sample. Sulfate ions are
converted to a barium sulfate suspension in an acetic acid medium with barium chloride. Light absorbance of
the BaSO4 suspension is measured by a photometer and the SO4-2 concentration is determined by comparison
of the reading with a standard curve. This method is compliant with NEPM (2013) Schedule B(3)
Sulfate (Turbidimetric) as SO4 2- by
Discrete Analyser
ED041G WATER
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Analytical Methods Method DescriptionsMatrixMethod
APHA 21st ed., 4500 Cl - G.The thiocyanate ion is liberated from mercuric thiocyanate through sequestration of
mercury by the chloride ion to form non-ionised mercuric chloride.in the presence of ferric ions the librated
thiocynate forms highly-coloured ferric thiocynate which is measured at 480 nm APHA 21st edition seal method 2
017-1-L april 2003
Chloride by Discrete Analyser ED045G WATER
Major Cations is determined based on APHA 21st ed., 3120; USEPA SW 846 - 6010 The ICPAES technique
ionises the 0.45um filtered sample atoms emitting a characteristic spectrum. This spectrum is then compared
against matrix matched standards for quantification. This method is compliant with NEPM (2013) Schedule B(3)
Sodium Adsorption Ratio is calculated from Ca, Mg and Na which determined by ALS in house method
QWI-EN/ED093F. This method is compliant with NEPM (2013) Schedule B(3)
Hardness parameters are calculated based on APHA 21st ed., 2340 B. This method is compliant with NEPM
(2013) Schedule B(3)
Major Cations - Dissolved ED093F WATER
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): Samples are 0.45 um filtered prior to
analysis. The ICPMS technique utilizes a highly efficient argon plasma to ionize selected elements. Ions are
then passed into a high vacuum mass spectrometer, which separates the analytes based on their distinct mass
to charge ratios prior to their measurement by a discrete dynode ion detector.
Dissolved Metals by ICP-MS - Suite A EG020A-F WATER
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): Samples are 0.45 um filtered prior to
analysis. The ICPMS technique utilizes a highly efficient argon plasma to ionize selected elements. Ions are
then passed into a high vacuum mass spectrometer, which separates the analytes based on their distinct mass
to charge ratios prior to their measurement by a discrete dynode ion detector.
Dissolved Metals by ICP-MS - Suite B EG020B-F WATER
(APHA 21st ed., 3125; USEPA SW846 - 6020, ALS QWI-EN/EG020): Samples are 0.45 um filtered prior to
analysis. The ICPMS technique utilizes a highly efficient argon plasma to ionize selected elements. Ions are then
passed into a high vacuum mass spectrometer, which separates the analytes based on their distinct mass to
charge ratios prior to their measurement by a discrete dynode ion detector.
Dissolved Metals by ICP-MS - Suite D EG020D-F WATER
APHA 21st ed., 4500-NO2- B. Nitrite is determined by direct colourimetry by Discrete Analyser. This method is
compliant with NEPM (2013) Schedule B(3)
Nitrite as N by Discrete Analyser EK057G WATER
APHA 21st ed., 4500-NO3- F. Nitrate is reduced to nitrite by way of a chemical reduction followed by quantification
by Discrete Analyser. Nitrite is determined seperately by direct colourimetry and result for Nitrate calculated as
the difference between the two results. This method is compliant with NEPM (2013) Schedule B(3)
Nitrate as N by Discrete Analyser EK058G WATER
APHA 21st ed., 4500-NO3- F. Combined oxidised Nitrogen (NO2+NO3) is determined by Chemical Reduction
and direct colourimetry by Discrete Analyser. This method is compliant with NEPM (2013) Schedule B(3)
Nitrite and Nitrate as N (NOx) by Discrete
Analyser
EK059G WATER
APHA 21st ed., 4500-P H, Jirka et al (1976), Zhang et al (2006). This procedure involves sulphuric acid digestion
of a sample aliquot to break phosphorus down to orthophosphate. The orthophosphate reacts with ammonium
molybdate and antimony potassium tartrate to form a complex which is then reduced and its concentration
measured at 880nm using discrete analyser. This method is compliant with NEPM (2013) Schedule B(3)
Total Phosphorus as P By Discrete
Analyser
EK067G WATER
APHA 21st Ed. 1030F. The Ionic Balance is calculated based on the major Anions and Cations. The major
anions include Alkalinity, Chloride and Sulfate which determined by PCT and DA. The Cations are determined by
Turbi SO4 by DA. This method is compliant with NEPM (2013) Schedule B(3)
Ionic Balance by PCT DA and Turbi SO4
DA
EN055 - PG WATER
Preparation Methods Method DescriptionsMatrixMethod
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Preparation Methods Method DescriptionsMatrixMethod
APHA 21st ed., 4500 Norg - D; APHA 21st ed., 4500 P - H. This method is compliant with NEPM (2013) Schedule
B(3)
TKN/TP Digestion EK061/EK067 SOIL
In houseDrying at 85 degrees, bagging and
labelling (ASS)
EN020PR SOIL
1g of soil is digested in 30 ml of 30% HCl and the resultant digest bulked and filtered for analysis by ICP.HCl Digest EN24 SOIL
USEPA SW846-3005 Method 3005 is a Nitric/Hydrochloric acid digestion procedure used to prepare surface and
ground water samples for analysis by ICPAES or ICPMS. This method is compliant with NEPM (2013) Schedule
B(3)
Digestion for Total Recoverable Metals EN25 SOIL
USEPA SW846-3005 Method 3005 is a Nitric/Hydrochloric acid digestion procedure used to prepare surface and
ground water samples for analysis by ICPAES or ICPMS. This method is compliant with NEPM (2013) Schedule
B(3)
Digestion for Total Recoverable Metals
in TCLP Leachate
EN25C SOIL
USEPA SW846-3005 Method 3005 is a Nitric/Hydrochloric acid digestion procedure used to prepare surface and
ground water samples for analysis by ICPAES or ICPMS. This method is compliant with NEPM (2013) Schedule
B(3)
Digestion for Total Recoverable Metals
in DI Water Leachate
EN25W SOIL
In house QWI-EN/60 referenced to AS4439.3 Preparation of LeachatesDeionised Water Leach EN60-DIa SOIL
USEPA 200.2 Mod. Hot Block Acid Digestion 1.0g of sample is heated with Nitric and Hydrochloric acids, then
cooled. Peroxide is added and samples heated and cooled again before being filtered and bulked to volume for
analysis. Digest is appropriate for determination of selected metals in sludge, sediments, and soils. This
method is compliant with NEPM (2013) Schedule B(3) (Method 202)
Hot Block Digest for metals in soils
sediments and sludges
EN69 SOIL
APHA 21st ed., 4500 Norg - D; APHA 21st ed., 4500 P - H. This method is compliant with NEPM (2013) Schedule
B(3)
TKN/TP Digestion EK061/EK067 WATER
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:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Summary of Outliers
Outliers : Quality Control Samples
The following report highlights outliers flagged in the Quality Control (QC) Report. Surrogate recovery limits are static and based on USEPA SW846 or ALS-QWI/EN/38 (in the absence of specific USEPA limits). This
report displays QC Outliers (breaches) only.
Duplicates, Method Blanks, Laboratory Control Samples and Matrix Spikes
Matrix: SOIL
Compound Group Name CommentLimitsDataAnalyteClient Sample IDLaboratory Sample ID CAS Number
Duplicate (DUP) RPDs
EP1308148-002 7440-38-2Arsenic137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-38-2Arsenic137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-39-3Barium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-39-3Barium137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-41-7Beryllium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-48-4Cobalt137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-48-4Cobalt137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-47-3Chromium137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-47-3Chromium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-50-8Copper137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-50-8Copper137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-96-5Manganese137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-96-5Manganese137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-98-7Molybdenum137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-98-7Molybdenum137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-02-0Nickel137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-02-0Nickel137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
16 of 19:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Matrix: SOIL
Compound Group Name CommentLimitsDataAnalyteClient Sample IDLaboratory Sample ID CAS Number
Duplicate (DUP) RPDs - Continued
EP1308148-002 7439-92-1Lead137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-92-1Lead137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-36-0Antimony137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-36-0Antimony137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-61-1Uranium137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-61-1Uranium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-66-6Zinc137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-66-6Zinc137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-93-2Lithium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-93-2Lithium137645044 Hydromet Sample RPD exceeds LOR based limits0-20%141 %EG020T: Total Metals by ICP-MS
EP1308148-002 7440-62-2Vanadium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-31-5Tin137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-31-5Tin137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7782-49-2Selenium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7782-49-2Selenium137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-28-0Thallium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-43-9Cadmium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-69-9Bismuth137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-69-9Bismuth137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-29-1Thorium137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-29-1Thorium137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
17 of 19:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Matrix: SOIL
Compound Group Name CommentLimitsDataAnalyteClient Sample IDLaboratory Sample ID CAS Number
Duplicate (DUP) RPDs - Continued
EP1308148-002 7440-22-4Silver137645044 Hydromet Sample RPD exceeds LOR based limitsNot
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-22-4Silver137645044 Hydromet Sample Analyte not determined in allocated
original sample.
Not
Determined
EG020T: Total Metals by ICP-MS
Matrix Spike (MS) Recoveries
EP1308148-002 7429-90-5Aluminium137645044 Hydromet Sample MS recovery not determined,
background level greater than or
equal to 4x spike level.
----Not
Determined
EG005T: Total Metals by ICP-AES
EP1308148-002 7439-89-6Iron137645044 Hydromet Sample MS recovery not determined,
background level greater than or
equal to 4x spike level.
----Not
Determined
EG005T: Total Metals by ICP-AES
EP1308148-002 7440-38-2Arsenic137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-47-3Chromium137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-47-3Chromium137645044 Hydromet Sample MS recovery not determined,
background level greater than or
equal to 4x spike level.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-50-8Copper137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-02-0Nickel137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-02-0Nickel137645044 Hydromet Sample MS recovery not determined,
background level greater than or
equal to 4x spike level.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7439-92-1Lead137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-66-6Zinc137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7782-49-2Selenium137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7782-49-2Selenium137645044 Hydromet Sample MS recovery not determined,
background level greater than or
equal to 4x spike level.
----Not
Determined
EG020T: Total Metals by ICP-MS
EP1308148-002 7440-43-9Cadmium137645044 Hydromet Sample Background level of analyte not
determined in original.
----Not
Determined
EG020T: Total Metals by ICP-MS
Matrix: WATER
Compound Group Name CommentLimitsDataAnalyteClient Sample IDLaboratory Sample ID CAS Number
Matrix Spike (MS) Recoveries
18 of 19:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Matrix: WATER
Compound Group Name CommentLimitsDataAnalyteClient Sample IDLaboratory Sample ID CAS Number
Matrix Spike (MS) Recoveries - Continued
Total Phosphorus as PEP1308148-003 ----137645044 Treated Waste Water MS recovery not determined,
background level greater than or
equal to 4x spike level.
----Not
Determined
EK067G: Total Phosphorus as P by Discrete Analyser
l For all matrices, no Method Blank value outliers occur.
l For all matrices, no Laboratory Control outliers occur.
Regular Sample Surrogates
l For all regular sample matrices, no surrogate recovery outliers occur.
Outliers : Analysis Holding Time Compliance
This report displays Holding Time breaches only. Only the respective Extraction / Preparation and/or Analysis component is/are displayed.
Matrix: SOIL
AnalysisExtraction / Preparation
Date analysedDate extractedContainer / Client Sample ID(s) Days
overdue
Days
overdue
Due for extraction Due for analysis
Method
EA005P: pH by PC Titrator
Clear Plastic Bottle - Natural
15-NOV-2013----137645044 Hydromet Sample 19-NOV-2013---- ---- 4
ED040: Sulfur as SO4 2-
Soil Glass Jar - Unpreserved
----01-NOV-2013137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample ----20-NOV-2013 19 ----
ED042T: Total Sulfur by LECO
80* dried soil
----01-NOV-2013137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample ----13-NOV-2013 12 ----
EN60: Bottle Leaching Procedure
LabSplit: Leach for organics and other tests
08-NOV-2013----137645044 Flotation Tailings - 16.3%, 137645044 Hydromet Sample 15-NOV-2013---- ---- 7
Matrix: WATER
AnalysisExtraction / Preparation
Date analysedDate extractedContainer / Client Sample ID(s) Days
overdue
Days
overdue
Due for extraction Due for analysis
Method
EA005P: pH by PC Titrator
Clear Plastic Bottle - Natural
25-OCT-2013----137645044 Flotation Tailings - 16.3% 07-NOV-2013---- ---- 13
Clear Plastic Bottle - Natural
25-OCT-2013----137645044 Treated Waste Water 31-OCT-2013---- ---- 6
ED093F: Dissolved Major Cations
Clear Plastic Bottle - Natural
01-NOV-2013----137645044 Treated Waste Water 04-NOV-2013---- ---- 3
19 of 19:Page
Work Order :
:Client
EP1308148 Amendment 7
GOLDER ASSOCIATES
Browns Range:Project
Matrix: WATER
AnalysisExtraction / Preparation
Date analysedDate extractedContainer / Client Sample ID(s) Days
overdue
Days
overdue
Due for extraction Due for analysis
Method
ED093F: Dissolved Major Cations - Analysis Holding Time Compliance
Clear Plastic Bottle - Natural
01-NOV-2013----137645044 Flotation Tailings - 16.3% 07-NOV-2013---- ---- 6
EK057G: Nitrite as N by Discrete Analyser
Clear Plastic Bottle - Natural
27-OCT-2013----137645044 Flotation Tailings - 16.3% 06-NOV-2013---- ---- 10
Outliers : Frequency of Quality Control Samples
The following report highlights breaches in the Frequency of Quality Control Samples.
l No Quality Control Sample Frequency Outliers exist.
BROWNS RANGE PROJECT – PRELIMINARY GEOCHEMICAL ASSESSMENT OF TAILINGS
June 2014 Report No. 137645044-011-R-Rev2
APPENDIX B Result Tables
Table 1BResults of Geochemical Analysis on Tailings Solids
Northern Minerals Ltd,Browns Range Tailings Operations
137645044-011-R-Rev2-Appendix B Page 1 of 1 SOIL_Chemistry_Output_Table 1B_AT_05062014.xlsm , 12/06/2014
Compiled: JUP Field_ID Flotation Tailings Hydromet SampleChecked: AT SampleCode EP1308148001 EP1308148002Reference: 137645044-011-R-Rev2 Sampled_Date_T 25/10/2013 25/10/2013
Matrix_Type SOLID SOLID
Chem_Group ChemName Unit LOR DoE 1996 CT1/2 Class I/II
DoE 1996 CT 3 Class III
DoE 1996 CT 4 Class IV
Sample Quality Parameters Electrical Conductivity @ 25°C uS/cm 1 646 8240Total Sulfur as S (LECO) % 0.01 <0.01 4.27Sulfur(as SO4) mg/kg 100 130 67,000Moisture (centrifudge product) % 1 44.7 4.5ANC as CaCO3 % CaCO3 0.1 <0.1 0.3ANC as H2SO4 kg H2SO4/t - <0.5 3.0Fizz Rating Fizz Unit 0 0 0NAG (pH 4.5) kg H2SO4/t 0.1 <0.1 <0.1NAG (pH 7.0) kg H2SO4/t 0.1 6.3 1.3NAGpH pH Unit 0.1 6.1 6.3
NAPP Net Acid Production Potential kg H2SO4/t 0.5 <0.5 128Aluminium mg/kg 50 50,000 100,000 200,000 5190 3000Antimony mg/kg 0.1 0.2 2.0Arsenic mg/kg 0.1 14 140 1400 1.9 76.8Barium mg/kg 0.1 50,000 100,000 200,000 62.4 38.6Beryllium mg/kg 0.1 2 20 200 0.2 0.2Bismuth mg/kg 0.1 0.1 2.1Boron mg/kg 50 50,000 100,000 200,000 <50 <50Cadmium mg/kg 0.1 0.4 4 40 <0.1 <0.1Calcium mg/kg 50 540 32400Chromium mg/kg 0.1 10 100 1000 118 725Cobalt mg/kg 0.1 50,000 100,000 200,000 2.3 14.0Copper mg/kg 0.1 50,000 100,000 200,000 43.9 61.3Iron mg/kg 50 41,200 18,200Lead mg/kg 0.1 2 20 200 5.6 37.5Lithium mg/kg 0.1 0.6 2.8Magnesium mg/kg 370 9440Manganese mg/kg 0.1 50,000 100,000 200,000 26.5 23.2Mercury mg/kg 0.1 0.2 2 20 <0.1 <0.1Molybdenum mg/kg 0.1 10 100 1000 16.2 144Nickel mg/kg 0.1 4 40 400 97.8 404Potassium mg/kg 50 1000 510Selenium mg/kg 1 2 20 200 2 363Silver mg/kg 0.1 20 200 2000 <0.1 4.2Sodium mg/kg 50 860 210Strontium mg/kg 0.1 13.7 1770Thallium mg/kg 0.1 <0.1 <0.1Thorium mg/kg 0.1 3 145Tin mg/kg 0.1 2 10.4Uranium mg/kg 0.1 2.3 141Vanadium mg/kg 1 50,000 100,000 200,000 3 2Zinc mg/kg 0.5 50,000 100,000 200,000 10.9 15.1
Legend for highlighted results:Exceeds DoE 1996 CT class 1/2 criteriaExceeds DoE 1996 CT class 3 criteriaExceeds DoE 1996 CT class 4 criteria
NAG Testing
Total Elements
Table 2BTailings Solids Leachate Water Quality
Northern Minerals Ltd, Browns Range Tailings Operations
137645044-011-R-Rev2-Appendix B Page 1 of 1 LEACHATE_Chemistry_Output_Table1__AT05062014.xlsm , 12/06/2014
Compiled: JUP Field ID Flotation Tailings Solid Hydromet SampleChecked: AT SampleCode EP1308148001 EP1308148002Reference: 137645044-011-R-Rev2 Sampled_Date_Time 25/10/2013 25/10/2013
Matrix Type ASLP LEACHATE (20:1) ASLP LEACHATE (20:1)
Chem_Group ChemName Unit LOR DEC ASLP 1/2 class I/II
DEC ASLP 3 class III
DEC ASLP 4 class IV
ANZECC 2000 GW long-term irrigation water
protection
ANZECC 2000 livestock drinking water trigger
value (low risk)
DEC short-term irrigation water
Acidity (as CaCO3) mg/L 1 <1 13Electrical Conductivity @ 25°C uS/cm 1 60 3730pH (Lab) pH_Units 0.01 6-8.5 8.49 7.21pH (Final after leach) pH Units 0.1 9.4 7.4Sodium mg/L 1 115 16 9Potassium mg/L 1 2 16Calcium mg/L 1 1000 <1 604Magnesium mg/L 1 <1 465Chloride mg/L 1 40 0 6 4Sulfur(as SO4) mg/L 1 1000 2 2850Sulfur(as SO4) - Turbidimetric mg/L 1 1000 3 3010Bicarbonate Alkalinity (as CaCO3) mg/L 1 20 <1Carbonate Alkalinity (as CaCO3) mg/L 1 2 <1Hydroxide Alkalinity (as CaCO3) mg/L 1 <1 <1Total Alkalinity (as CaCO3) mg/L 1 21 <1Nitrate (as N) mg/L 0.01 400 0.01 0.03Nitrite (as N) mg/L 0.01 30 <0.01 <0.01Nitrogen (Total Oxidised) mg/L 0.01 0.01 0.03Total Phosphorus (as P) mg/L 0.01 0.05 0 0.55 2.47Sulphur (as S) - Total mg/L 1 <1 950Sulphur (as S) - Leachable mg/L 1 1 916Total Anions meq/L 0.01 0.65 62.8Total Cations meq/L 0.01 0.75 69.2Ionic Balance (Lab) % 0.01 - 4.88Aluminium mg/L 0.01 5 5 20 5.45 0.01Antimony mg/L 0.001 0.001 0.003Arsenic mg/L 0.001 0.5 0.7 7 0.1 0.5 2 0.004 0.066Barium mg/L 0.001 0.622 0.046Beryllium mg/L 0.001 0.1 1 10 0.1 0.5 <0.001 <0.001Bismuth mg/L 0.001 <0.001 <0.001Boron mg/L 0.05 0.5 5 0 0.11 0.7Cerium mg/L 0.001 0.026 <0.001Caesium mg/L 0.001 0.001 0.001Cobalt mg/L 0.001 0.05 1 0.1 0.003 0.021Copper mg/L 0.001 0.2 0.5 5 0.242 0.002Indium mg/L 0.001 <0.001 <0.001Iron mg/L 0.05 0.2 10 4.83 <0.05Lead mg/L 0.001 0.5 1 10 2 0.1 5 0.028 <0.001Lithium mg/L 0.001 2.5 2.5 0.005 0.068Manganese mg/L 0.001 0.2 10 0.098 0.261Mercury mg/L 0.0001 0.01 0.1 1 0.002 <0.0001 - Molybdenum mg/L 0.001 0.5 5 50 0.01 0.15 0.05 0.004 3.2Nickel mg/L 0.001 0.2 2 20 0.2 1 2 0.05 1.02Rubidium mg/L 0.001 0.009 0.036Selenium mg/L 0.01 0.5 1 10 0.02 0.02 0.05 <0.01 <0.01Silicon mg/L 0.05 23.1 13.7Strontium mg/L 0.001 0.044 6.02Thallium mg/L 0.001 <0.001 <0.001Thorium mg/L 0.001 0.007 <0.001Tin mg/L 0.001 0.001 <0.001Titanium mg/L 0.01 <0.01 <0.01Uranium mg/L 0.001 0.01 0.2 0.1 0.005 <0.001Zinc mg/L 0.005 2 20 5 0.115 <0.005
Legend for highlighted results:Exceeds DoE 1996 ASLP class 1/2 criteriaExceeds DoE 1996 ASLP class 3 criteriaExceeds DoE 1996 ASLP class 4 criteriaExceeds ANZECC 2000 GW long-term irrigation water protection criteriaExceeds ANZECC 2000 livestock dringing water trigger vlaue (low risk) criteriaExceeds DEC short-term irrigation water criteria
Dissolved Elements
Sample Quality Parameters including
Major Ions
Table 3BAnalytical Results on Waters
Tailings Process Water and Treated Waste Water Quality
Northern Minerals Ltd,Browns Range Tailings Operations
137645044-011-R-Rev2-Appendix B Page 1 of 1 WATER_Chemistry_Output_Table3B_AT_05062014.xlsm , 12/06/2014
Compiled: JUP Field ID Flotation Tailings Treated Waste WaterChecked: AT SampleCode EP1308148004 EP1308148003Reference: 137645044-011-R-Rev2 Sampled Date Time 25/10/2013 25/10/2013
Matrix Type PROCESS WATER WATER
Chem_Group ChemName Unit LORDoE 1996
ASLP class 1/2
DoE 1996 ASLP class 3
DoE 1996 ASLP class 4
ANZECC 2000 GW long-term irrigation water
protection
ANZECC 2000 Livestock drinking water trigger value
(low risk)
DEC short-term irrigation water
Acidity (as CaCO3) mg/L 1 57 19Electrical Conductivity @ 25°C uS/cm 1 1230 13,500pH (Lab) pH Units 0.01 6-8.5 8.07 7.66Chloride mg/L 1 40 0 215 169Sulfur(as SO4) (dissolved) mg/L 1 1000 68 13,800Sulfur(as SO4) Turbidimetric mg/L 1 1000 72 14,300Bicarbonate Alkalinity (as CaCO3) mg/L 1 248 101Carbonate Alkalinity (as CaCO3) mg/L 1 <1 <1Hydroxide Alkalinity (as CaCO3) mg/L 1 <1 <1Total Alkalinity (as CaCO3) mg/L 1 248 101Nitrate (as N) mg/L 0.01 400 <0.01 0.22Nitrite (as N) mg/L 0.01 30 <0.01 <0.01Nitrogen (Total Oxidised) mg/L 0.01 <0.01 0.22Total Phosphorus (as P) mg/L 0.01 0.05 0 1.45 5.94Sulphur (as S) (dissolved) mg/L 1 22 4590Silica (SiO2) mg/L 0.1 162 9.3Total Anions meq/L 0.01 12.5 296Total Cations meq/L 0.01 12 325Ionic Balance (Lab) % 0.01 2.19 4.66Aluminium mg/L 0.01 5 5 20 2.38 0.03Antimony mg/L 0.001 0.002 <0.001Arsenic mg/L 0.001 0.5 0.7 7 0.1 0.5 2 0.012 0.164Barium mg/L 0.001 0.374 0.008Beryllium mg/L 0.001 0.1 1 10 0.1 0.5 <0.001 <0.001Bismuth mg/L 0.001 <0.001 <0.001Boron mg/L 0.05 0.5 5 0 0.13 1.2Cadmium mg/L 0.0001 0.1 0.2 2 0.0001 0.0003Caesium mg/L 0.001 <0.001 0.01Calcium mg/L 1 1000 4 511Cerium mg/L 0.001 0.039 <0.001Chromium * mg/L 0.001 0.018 0.038Cobalt mg/L 0.001 0.05 1 0.1 0.005 0.008Copper mg/L 0.001 0.2 0.5 5 0.334 0.012Dysprosium mg/L 0.001 0.053 <0.001Erbium mg/L 0.001 0.031 <0.001Europium mg/L 0.001 <0.001 <0.001Gadolinium mg/L 0.001 0.035 <0.001Gallium mg/L 0.001 <0.001 <0.001Hafnium mg/L 0.01 <0.01 <0.01Holmium mg/L 0.001 0.011 <0.001Indium mg/L 0.001 <0.001 <0.001Iron mg/L 0.05 0.2 10 3.2 <0.05Lanthanum mg/L 0.001 0.02 <0.001Lead mg/L 0.001 0.5 1 10 2 0.1 5 0.03 <0.001Lithium mg/L 0.001 2.5 2.5 0.011 0.992Lutetium mg/L 0.001 0.004 <0.001Magnesium mg/L 1 3 3460Manganese mg/L 0.001 0.2 10 0.433 0.192Molybdenum mg/L 0.001 0.5 5 50 0.01 0.15 0.05 0.061 0.092Neodymium mg/L 0.001 0.058 <0.001Nickel mg/L 0.001 0.2 2 20 0.2 1 2 0.071 0.212Potassium mg/L 1 16 211Praseodymium mg/L 0.001 0.01 <0.001Rubidium mg/L 0.001 0.005 0.379Samarium mg/L 0.001 0.019 <0.001Selenium mg/L 0.01 0.5 1 10 0.02 0.02 0.05 <0.01 <0.01Silicon mg/L 0.05 75.8 4.36Silver mg/L 0.001 1 10 100 <0.001 <0.001Sodium mg/L 1 115 256 221Strontium mg/L 0.001 0.094 2.65Tellurium mg/L 0.005 <0.005 <0.005Terbium mg/L 0.001 0.008 <0.001Thallium mg/L 0.001 <0.001 <0.001Thorium mg/L 0.001 0.002 <0.001Thulium mg/L 0.001 0.004 <0.001Tin mg/L 0.001 0.002 <0.001Titanium mg/L 0.01 0.02 0.01Uranium mg/L 0.001 0.01 0.2 0.1 0.007 <0.001Vanadium mg/L 0.01 <0.01 0.06Yttrium mg/L 0.001 0.238 <0.001Ytterbium mg/L 0.001 0.024 <0.001Zinc mg/L 0.005 2 20 5 0.104 0.006Zirconium mg/L 0.005 <0.005 <0.005
*DoE 1996 ASLP guideline value for hexavalent chromium Legend for highlighted results:Exceeds DoE 1996 ASLP Class 1/2 CriteriaExceeds DoE 1996 ASLP Class 3 CriteriaExceeds DoE 1996 ASLP Class 4 CriteriaExceeds ANZECC 2000 GW long-term irrigation water protection criteriaExceeds ANZECC 2000 livestock dringing water trigger vlaue (low risk) criteriaExceeds DEC short-term irrigation water criteria
Sample Quality Parameters
Dissolved Elements
BROWNS RANGE PROJECT – PRELIMINARY GEOCHEMICAL ASSESSMENT OF TAILINGS
June 2014 Report No. 137645044-011-R-Rev2
APPENDIX C AMIRA (2002) Classification Flow Chart
AMIRA P387A Project ARD Test Handbook
Ian Wark Research Institute Page A- 1 Environmental Geochemistry International Pty Ltd
Figure A1: Flow Chart showing ARD screening tests, decision nodes and ARD rock type categories
Tailings or Waste Rock
Sample
Crushing and Splitting
(see Note 1)
Pulverise to -75µm
Total S
ANC Test
Single Addition NAG Test
NAPP Calculation
Sample Preparation Basic Screening Tools
pH1:2 and EC1:2
(see Note 2)
Categorise Sample
NAF(see Note 4)
Uncertain
Note 6: Further investigations are required to determine:-Classification of samples with conflicting NAPP and NAG results.-Magnitude of acid forming capacity for PAF samples with low NAG/NAPP ratios.-Availability of ANC for neutralisation of acid produced in samples with moderate to high S.-Acid potential of samples with high contents of organic matter.
NAPP positive
PAF Low Capacity
(see Note 5)
Uncertain
No
NAGpH less than
4.5
Yes
Further Investigation
and Re-Categorisation(see Note 6)
Yes
NAGpH less than
4.5
Yes
No
Note 2: pH and EC measurements provide a measure of immediately available acidity and salinity. This information may influence the final categorisation of the sample due to potential short term effects of a given material on rehabilitation, drainage etc. Measurements are best carried out on the crushed sample rather than the pulverised sample where possible.
PAF
Data Evaluation
Carbonaceous Sample
(see Note 3)
Note 3: The occurrence of organic compounds in some materials may interfere with NAG tests. In particular samples from coal deposits with more than about 5% TOC.
Note 4: Further evaluation is recommended to confirm classification on samples with High Sulphur and High ANC. There is a risk of incomplete sulphide oxidation during the NAG test on high sulphur samples Selected samples of High S and High ANC material should be subjected to Sequential NAG and ABCC determinations. Samples with more than 2% S and ANC/MPA ratios less than 1.5 should be evaluated.
NoNAG4.5
greaterthan 5
Yes
YesNo
No
Note 1: Sample preparation may include crushing to nominal -4mm and splitting of a representative sub sample from the bulk. Core and rock samples require crushing before splitting. Drill chips and tailings do not normally require crushing.
Note 5: Further investigation is recommended to determine acid forming capacities of samples with high S values(>1%S) and low NAG/NAPP ratios (<0.5). Low NAG/NAPP ratios indicate either non-acid producing S forms or incomplete oxidation in the NAG test, and additional testing would be required to determine which applies in a particular case.
BROWNS RANGE PROJECT – PRELIMINARY GEOCHEMICAL ASSESSMENT OF TAILINGS
June 2014 Report No. 137645044-011-R-Rev2
APPENDIX D Limitations
LIMITATIONS
This Document has been provided by Golder Associates Pty Ltd (“Golder”) subject to the following limitations: This Document has been prepared for the particular purpose outlined in Golder’s proposal and no responsibility is accepted for the use of this Document, in whole or in part, in other contexts or for any other purpose. The scope and the period of Golder’s Services are as described in Golder’s proposal, and are subject to restrictions and limitations. Golder did not perform a complete assessment of all possible conditions or circumstances that may exist at the site referenced in the Document. If a service is not expressly indicated, do not assume it has been provided. If a matter is not addressed, do not assume that any determination has been made by Golder in regards to it. Conditions may exist which were undetectable given the limited nature of the enquiry Golder was retained to undertake with respect to the site. Variations in conditions may occur between investigatory locations, and there may be special conditions pertaining to the site which have not been revealed by the investigation and which have not therefore been taken into account in the Document. Accordingly, additional studies and actions may be required. In addition, it is recognised that the passage of time affects the information and assessment provided in this Document. Golder’s opinions are based upon information that existed at the time of the production of the Document. It is understood that the Services provided allowed Golder to form no more than an opinion of the actual conditions of the site at the time the site was visited and cannot be used to assess the effect of any subsequent changes in the quality of the site, or its surroundings, or any laws or regulations. Any assessments made in this Document are based on the conditions indicated from published sources and the investigation described. No warranty is included, either express or implied, that the actual conditions will conform exactly to the assessments contained in this Document. Where data supplied by the client or other external sources, including previous site investigation data, have been used, it has been assumed that the information is correct unless otherwise stated. No responsibility is accepted by Golder for incomplete or inaccurate data supplied by others. Golder may have retained subconsultants affiliated with Golder to provide Services for the benefit of Golder. To the maximum extent allowed by law, the Client acknowledges and agrees it will not have any direct legal recourse to, and waives any claim, demand, or cause of action against, Golder’s affiliated companies, and their employees, officers and directors. This Document is provided for sole use by the Client and is confidential to it and its professional advisers. No responsibility whatsoever for the contents of this Document will be accepted to any person other than the Client. Any use which a third party makes of this Document, or any reliance on or decisions to be made based on it, is the responsibility of such third parties. Golder accepts no responsibility for damages, if any, suffered by any third party as a result of decisions made or actions based on this Document.
GOLDER ASSOCIATES PTY LTD GAP Form No. LEG 04 RL 1
Golder Associates Pty Ltd Level 3, 1 Havelock Street West Perth, Western Australia 6005 Australia T: +61 8 9213 7600