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Report: Estimating Groundwater Availability for Allocation in British Columbia
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If you have any questions on the information presented, or require additional report data or attachments, please contact the Report Contact
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A spreadsheet based preliminary assessment tool termed the Groundwater Allocation Methodology (GWAM) was developed and tested as a initial approach for estimating available quantities of groundwater for allocation, particularly for areas with limited groundwater information.
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Author: Alan P. Kohut
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Date Published: Jun 2021
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Report ID: 59189
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Audience: Government and Public
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A spreadsheet based preliminary assessment tool termed the Groundwater Allocation Methodology (GWAM) was developed and tested as a initial approach for estimating available quantities of groundwater for allocation, particularly for areas with limited groundwater information. The method was tested through comparisons with four previously developed aquifer water budgets, which indicated GWAM is useful for compiling, interpreting, and comparing water budgets for particular aquifers or study areas of interest. Results with GWAM depend on the availability and accuracy of the data sets, the validity of the hydrogeologic conceptual model, and assumptions made in the water budget. There can be a high degree of uncertainty due to lack of key data and imprecise estimates that are often associated with analysis of hydrologic systems. GWAM provides conservative estimates for groundwater availability and should be viewed as a preliminary decision support tool and not utilized in isolation as an allocation tool. Uncertainty in allocation quantities can be addressed by using GWAM to focus characterization and data collection on the most sensitive water budget components, and by employing more than one methodology for estimating allocation quantities and comparing results for consistency.
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Report Type
Subject
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Region - Province Wide |
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Water Information - Groundwater |
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Water Information - Water Management |
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