Common use of Classification of Transboundary Groundwater Clause in Contracts

Classification of Transboundary Groundwater. Hydrogeological information to delineate Transboundary Groundwater in the YT-BC border region is scarce and most of the aquifers in this area are not defined and mapped; thus, watershed boundaries were used as a surrogate for delineating Transboundary Groundwater at the sub-basin level. These surrogates are referred to as groundwater areas, which will be used until more information is available and aquifers are mapped. Groundwater areas provide an area based framework for data collection and synthesis and identification of key information gaps. It was assumed that topographic slope reflects shallow Groundwater flow directions and that surface sub-basins generally reflect Groundwater flow patterns within the smaller discrete sub-watershed units in order to facilitate management and investigations of Groundwater. The Liard sub-basin 2, 3 & 4, Teslin sub-basin 1 & 2 and Alsek sub basin 1 & 2 were defined as groundwater areas relevant to this agreement and were classified based on Groundwater areas (Figure 2). Based on current available information all of the seven Transboundary Groundwater areas were classified as class 1 for both quantity and quality.

Classification of Transboundary Groundwater. Hydrogeological information to delineate Transboundary Groundwater in the YTNWT-BC border region is scarce and most of the aquifers in this area are not defined and mapped; thus, watershed boundaries were used as a surrogate for delineating Transboundary Groundwater at the sub-basin level. These surrogates are referred to as groundwater areas, which will be used until more information is available and aquifers are mapped. Groundwater areas provide an area based framework for data collection and synthesis and identification of key information gaps. It was assumed that topographic slope reflects shallow Groundwater flow directions and that surface sub-basins generally reflect Groundwater flow patterns within the smaller discrete sub-watershed units in order to facilitate management and investigations of Groundwater. The Liard sub-basin 2, 3 & 4, Teslin Petitot River sub-basin 1 & and 2 and Alsek sub Liard River sub-basin 1 & 2 were defined as groundwater areas relevant to this agreement (Figure 2) and were classified based on Groundwater areas quality and quantity (Figure 2)Table 8). Based on current available information all of the seven Transboundary Groundwater These three groundwater areas were classified as class 1 for both quantity and class 2 for quality.