Laserfiche WebLink
G <br />Work plan <br />DRAFT <br />7 <br />Table 3.1 Summary of groundwater monitoring wells <br />Location Strata targeted Drill hole Screened interval Screen Length Sampling <br />diameter of seal frequency <br />Purpose <br />Notes: SS = Sandstone <br />See Plan 1 for borehole locations. <br />2572-RI <br />Colowyo Coal Company, L.P. <br />Water Management Consultants <br />Depth <br />Diameter <br />From <br />To <br />(ft) <br />(in) <br />(ft bgs) <br />(ft bgs) <br />(in) <br />(ft) <br />C -04 -01 <br />Ss above F coal <br />500 <br />9 <br />500 <br />460 <br />5 <br />20 <br />Quarterly <br />Overburden potentiometric surface, water <br />quality and aquifer properties downgradient <br />F and G coals <br />600 <br />9 <br />600 <br />560 <br />5 <br />20 <br />Quarterly <br />Coal potentiometric surface, water quality <br />and aquifer properties downgradient <br />Ss below G coals <br />800 <br />9 <br />800 <br />760 <br />5 <br />20 <br />Quarterly <br />Under burden potentiometric surface, .water <br />quality and aquifer properties downgradient <br />Trout Creek Ss <br />1000 <br />9 <br />1000 <br />960 <br />5 <br />20 <br />Quarterly <br />Upper most regional aquifer potentiometric <br />surface, water quality and aquifer properties <br />downgradient <br />C -04 -05 <br />Ss above Fab coal <br />500 <br />9 <br />500 <br />460 <br />5 <br />20 <br />Quarterly <br />Overburden potentiometric surface, water <br />quality and aquifer properties mid - gradient <br />F and G coals <br />600 <br />9 <br />600 <br />560 <br />5 <br />20 <br />Quarterly <br />Coal potentiometric surface, water quality <br />and aquifer properties mid - gradient <br />Ss below G coals <br />800 <br />9 <br />800 <br />760 <br />5 <br />20 <br />Quarterly <br />Under burden potentiometric surface, water <br />quality and aquifer properties mid - gradient <br />Trout Creek Ss <br />1000 <br />9 <br />1000 <br />960 <br />5 <br />20 <br />Quarterly <br />Upper most regional aquifer potentiometric <br />surface, water quality and aquifer properties <br />mid- gradient <br />C -04 -30 <br />Ss above F coal <br />500 <br />9 <br />500 <br />460 <br />5 <br />20 <br />Quarterly <br />Overburden potentiometric surface, water <br />quality and aquifer properties upgradient <br />F and G coals <br />600 <br />9 <br />600 <br />560 <br />5 <br />20 <br />Quarterly <br />Coal potentiometric surface, water quality <br />and aquifer properties upgradient <br />Ss below G coals <br />800 <br />9 <br />800 <br />760 <br />5 <br />20 <br />Quarterly <br />Under burden potentiometric surface, water <br />quality and aquifer properties upgradient <br />Trout Creek Ss <br />1000 <br />9 <br />1000 <br />960 <br />5 <br />20 <br />Quarterly <br />Upper most regional aquifer potentiometric <br />surface, water quality and aquifer properties <br />upgradient <br />C -04 -31 <br />Ss above Fab coal <br />500 <br />9 <br />500 <br />460 <br />5 <br />20 <br />Quarterly <br />Overburden potentiometric surface, water <br />quality and aquifer properties downgradient <br />F and G coals <br />600 <br />9 <br />600 <br />560 <br />5 <br />20 <br />Quarterly <br />Coal potentiometric surface, water quality <br />and aquifer properties downgradient <br />Ss below G coals <br />800 <br />9 <br />800 <br />760 <br />5 <br />20 <br />Quarterly <br />Under burden potentiometric surface, water <br />quality and aquifer properties downgradient <br />Trout Creek Ss <br />1000 <br />9 <br />1000 <br />960 <br />5 <br />20 <br />Quarterly <br />Upper most regional aquifer potentiometric <br />surface, water quality and aquifer properties <br />downgradient <br />Notes: SS = Sandstone <br />See Plan 1 for borehole locations. <br />2572-RI <br />Colowyo Coal Company, L.P. <br />Water Management Consultants <br />