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| 02093nam 2200349zi 4500 |
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| 001 | 9.911506 |
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| 003 | CaOODSP |
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| 005 | 20221107182353 |
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| 006 | m o d f |
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| 007 | cr mn||||||||| |
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| 008 | 220517e198104##bccbf ob f000 0 eng d |
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| 040 | |aCaOODSP|beng|erda|cCaOODSP |
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| 043 | |an-cn-bc |
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| 086 | 1 |aEn40-1033/1981E-PDF |
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| 100 | 1 |aHallam, R. L., |eauthor. |
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| 245 | 10|aNorthair Mines Limited, Brandywine Falls, B.C. : |bnotes from a review of aquatic environmental information, site inspection and water quality audits conducted June 20, 1978 and March 4, 1981 / |cby R.L. Hallam. |
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| 264 | 1|aWest Vancouver, B.C. : |bDepartment of Environment, Environmental Protection Service, |cApril, 1981. |
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| 300 | |a1 online resource (iv, 66 pages) : |bmaps, plates |
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| 336 | |atext|btxt|2rdacontent |
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| 337 | |acomputer|bc|2rdamedia |
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| 338 | |aonline resource|bcr|2rdacarrier |
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| 500 | |aCover title. |
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| 500 | |aDigitized edition from print [produced by Environment and Climate Change Canada]. |
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| 504 | |aIncludes bibliographical references (pages 38-40). |
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| 520 | |a"Northair Mines Ltd. a small 300 ton/day copper, gold, silver, lead and zinc mine located approximately 56 km due north of Squamish, B.C. opened in 1976 and is expected to close in late 1981 for the lack of economically recoverable ore. Two flotation concentrates (Cu-Pb & Zn) are produced and silver-gold are recovered by mercury amalgamation and refined to dore bars on site. Cyanide is used to differentially separate the two flotation concentrates"--Summary and recommendations, page 28. |
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| 650 | 0|aMines and mineral resources|xEnvironmental aspects|zBritish Columbia. |
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| 650 | 0|aMine water|xQuality|zBritish Columbia. |
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| 650 | 6|aRessources minérales|xAspect de l'environnement|zColombie-Britannique. |
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| 650 | 6|aEau de mine|xQualité|zColombie-Britannique. |
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| 710 | 1 |aCanada. |bEnvironmental Protection Service, |eissuing body. |
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| 856 | 40|qPDF|s9.31 MB|uhttps://publications.gc.ca/collections/collection_2022/eccc/en40/En40-1033-1981-eng.pdf |
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