TORONTO, ONTARIO--(Marketwire - Nov. 21, 2012) - CHAMPION IRON MINES LIMITED (CHM.TO)(CPMNF)(P02.F) ("Champion" or the "Company") is pleased to announce the results of an Environmental Baseline Study completed by Roche Ltd. (Montréal, QC) at its Consolidated Fire Lake North flagship project near Fermont, Québec. Results confirm that the West Pit and East Pit Run of Mine ore and waste rocks are not acid generating in nature, nor do they represent a risk during mining operation with respect to heavy metals release.
These excellent results from the environmental characterization of the ore and waste rocks were obtained as part of an overall metallurgical testing program completed at the SGS Laboratories (Lakefield, ON) for the Feasibility Study in-progress. The results will benefit both capital and operating costs since no geo-membranes will be required beneath the waste dumps nor will any treatment of waste dump run-off water be needed. An additional benefit will be realized from the use of waste rock for construction of mine roads and associated mine and concentrator infrastructure. Therefore, no specific quarry will be required to generate the construction aggregates.
Representative samples of tailings were also subjected to trace metal analysis using Inductively Coupled Plasma Optical Emission Spectroscopy / Mass Spectrometry and the corresponding liquid fractions (decant solutions) were also characterized extensively.
Acid Rock Drainage ("ARD") static tests and Metal Leaching static tests were conducted on representative samples of waste rock, ore, tailings, and concentrate. The ARD testing consisted of Acid / Base Accounting and Net Acid Generation testing. Several, generally accepted, leaching procedures were performed, including the Toxicity Characteristic Leaching Procedure (EPA Method 1311), the Synthetic Precipitation Leaching Procedure (EPA Method 1312), and the Distilled Water Leach Extraction (Quebec CTEU-9).
Waste Rock Results:
Static tests performed on representative samples indicate no real potential to generate ARD, which is consistent with the very low sulphide content coupled with the presence of alkaline-type minerals that compose these rocks.
Based upon the Province of Québec's Ministère du Développement durable, de l'Environnement, de la Faune et des Parcs (MDDEFP)'s Directive 019 mine waste classification, the waste from the West Pit was leachable for barium. However, barium concentrations in the leachates were very low during the more representative kinetic tests (longer term humidity cells), which were carried out on composite samples from each of the West Pit and East Pit deposits.
Kinetic tests also confirmed that the waste carried no real potential to generate ARD as demonstrated by the resulting slightly alkaline pH (± 8.0) of the leachates and the very low sulfate concentrations. All metals (including Al, As, Be, Bi, Cd, Co, Cr, Fe, Hg, Fe, Mn, Mo, Ni, Pb, Se, Ti, V and Zn) showed very low concentrations in the leachates collected.
Based upon these results, waste rock can be used for construction (roads, dykes, etc.) and no special groundwater protection measures (e.g. geo-membrane) will be required at waste dump locations. Only suspended sediments could potentially be present in the water percolating through the waste dumps and a sedimentation pond will be sufficient for an effluent quality control.
Ore and Concentrate Results:
Ore sent to the pilot plant was separated by gravity separation and divided into concentrate and tailings. Both resulting products showed similar metal content with the exception of iron, which was obviously naturally more abundant in the concentrate. The ore and the concentrate carry no potential to generate ARD, nor did they release heavy metals through any of the leaching procedures.
These products can therefore be stockpiled without special groundwater protection measures (e.g. geo-membrane). Only suspended sediments could potentially be present in the water percolating through either the ore or concentrate stockpiles and again, sedimentation ponds would be sufficient for a control of the effluent quality.
Tailings samples were also generated from the SGS-Lakefield Pilot Plant test and showed that the tailings carry no real potential to generate ARD, nor do they release metals into solution. The liquid fraction of the tailings was slightly alkaline (± 8.0) which is good, and showed low concentrations for all analysed parameters.
On this basis, no special groundwater protection measures (e.g. geo-membrane) will be required at the tailings impoundment area. Moreover, no waste water treatment will be necessary to control dissolved metals. A sedimentation pond will be sufficient to control the water effluent quality.
Further to this, Champion is presently investigating possible methods for transferring partially dewatered tailings to the impoundment area to minimize the back-and-forth water transfer between the concentrator and tailings pond.
Thomas Larsen, Champion's President and CEO, remarked, "We are pleased to report results from the Environmental Baseline Study. It clearly demonstrates that mining operations can be conducted at Fire Lake North without negatively impacting the surrounding water bodies and that appropriate steps are being taken at this study level to minimize the impact of future mining activities as to protect the local environment."
Selected results from each test described above can be found on our website (www.championironmines.com).
About Champion Iron Mines Limited
Champion is an iron exploration and development company with offices in Montréal and Toronto, and is focused on developing its significant iron resources in the provinces of Québec and Newfoundland & Labrador. Champion holds a 100% interest in the Fermont Iron Holdings and a 44% interest in the Attikamagen Iron Project located in both Québec and Labrador. The Attikamagen Project is under option to Labec Century Iron Ore Inc. ("Labec"), a subsidiary of Century Iron Mines Corporation, under which Labec can earn up to a 60% interest.
Champion's Fermont Iron Holdings, including its flagship Consolidated Fire Lake North Project, are located in Canada's major iron ore producing district, in close proximity to five producing iron mines. Consolidated Fire Lake North is located immediately adjacent to and north of ArcelorMittal's operating Fire Lake Mine and 60 km south of Cliffs Natural Resources Inc.'s Bloom Lake Mine in northeastern Québec. Champion's team and advisory board includes mining and exploration professionals with the mine operations experience to build, commission, and operate the future Consolidated Fire Lake North mine.
The technical information in this news release was prepared, revised and approved by Yves Thomassin, Director of Mining Projects-Environment from Roche and Mr. Jean-Luc Chouinard P. Eng. M. Sc., VP Project Development for Champion Iron Mines. Mr. Chouinard is a Qualified Person under NI 43-101 standards.
For additional information on Champion, please visit our website at www.championironmines.com.
This news release includes certain information that may constitute "forward-looking information" under applicable Canadian securities legislation. Forward-looking information includes, but is not limited to, statements about planned operations at the Company's projects, including its Fire Lake North Project. Forward-looking information is necessarily based upon a number of estimates and assumptions that, while considered reasonable, are subject to known and unknown risks, uncertainties, and other factors which may cause the actual results and future events to differ materially from those expressed or implied by such forward-looking information, including the risks identified in Champion's annual information forms, management discussion and analysis and other securities regulatory filings by Champion on SEDAR (including under the heading "Risk Factors" therein). There can be no assurance that such information will prove to be accurate, as actual results and future events could differ materially from those anticipated in such forward-looking information. Accordingly, readers should not place undue reliance on forward-looking information. All forward-looking information contained in this press release is given as of the date hereof and is based upon the opinions and estimates of Champion's management and information available to management as at the date hereof. Champion disclaims any intention or obligation to update or revise any forward-looking information, whether as a result of new information, future events or otherwise, except as required by law.
This press release has been prepared by Champion Iron Mines Limited and no regulatory authority has approved or disapproved the information contained herein.
- Nature & Environment
Thomas G. Larsen
President and CEO
Champion Iron Mines Limited