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British Columbia Mine Reclamation Symposium
The appropriate geochemical monitoring of toe seepage from a mine-rock dump Morin, Kevin A. (Kevin Andrew), 1955-; Horne, Ian A.; Flather, David
Abstract
Water passing through mine-rock dumps either enters the underlying groundwater system or exits at the toe. For the case of toe seepage, the water is often collected in ditches and diverted out of the area. In light of the variability in flow and chemistry expected in toe seepage, questions arise as to the appropriate monitoring program including, for example, the importance of variable sampling frequency. Alternatively, for many mines in British Columbia, the more important question is "Are we missing anything important by sampling on a routine basis such as monthly?". Rather than answering the question based on theory, this paper answers with actual data from a minesite in British Columbia. At the Island Copper Minesite on Vancouver Island, British Columbia, an ambitious monitoring program of toe seepage took place over a six-month period. Eight stations were monitored basically either (1) once daily for flow and chemistry or (2) hourly for flow and every four hours for chemistry. Based on statistical analyses of data from selected stations, answers are provided for important technical questions, such as monitoring frequency, and for regulatory questions, such as permit limits. In essence, water chemistry can be viewed like hydrology where, for example, yearly concentrations of a 1-hour duration can be determined. This concept is expanded further in an accompanying paper at this symposium using standard monitoring data.
Item Metadata
Title |
The appropriate geochemical monitoring of toe seepage from a mine-rock dump
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Creator | |
Contributor | |
Date Issued |
1993
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Description |
Water passing through mine-rock dumps either enters the underlying groundwater system
or exits at the toe. For the case of toe seepage, the water is often collected in ditches and
diverted out of the area. In light of the variability in flow and chemistry expected in toe
seepage, questions arise as to the appropriate monitoring program including, for example, the
importance of variable sampling frequency. Alternatively, for many mines in British Columbia,
the more important question is "Are we missing anything important by sampling on a routine
basis such as monthly?". Rather than answering the question based on theory, this paper
answers with actual data from a minesite in British Columbia.
At the Island Copper Minesite on Vancouver Island, British Columbia, an ambitious
monitoring program of toe seepage took place over a six-month period. Eight stations were
monitored basically either (1) once daily for flow and chemistry or (2) hourly for flow and every
four hours for chemistry. Based on statistical analyses of data from selected stations, answers
are provided for important technical questions, such as monitoring frequency, and for regulatory
questions, such as permit limits. In essence, water chemistry can be viewed like hydrology
where, for example, yearly concentrations of a 1-hour duration can be determined. This concept
is expanded further in an accompanying paper at this symposium using standard monitoring data.
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Extent |
1234968 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-07-20
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Provider |
Vancouver : University of British Columbia Library
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Rights |
Attribution-NonCommercial-NoDerivatives 4.0 International
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DOI |
10.14288/1.0042230
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URI | |
Affiliation | |
Peer Review Status |
Unreviewed
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Scholarly Level |
Other
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Copyright Holder |
British Columbia Technical and Research Committee on Reclamation
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Rights URI | |
Aggregated Source Repository |
DSpace
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Rights
Attribution-NonCommercial-NoDerivatives 4.0 International