Laserfiche WebLink
Reclaimed <br />spoil surface <br />Underground <br />collection house <br />ai <br />d <br />00 <br />2 inch polyvinyl chloride <br />pipe _ <br />ao = <br />4 inch polyvinyl chloride <br />Lidded 50 or 100 Protection pipe <br />4 feet gallon collection <br />container <br />2 inch seamless aluminum <br />soil -water access tube <br />with rubber stopper, <br />4-9 feet depth <br />Lysimeter catchment <br />tank of 24 square feet <br />Not to scale <br />Figure 8. --Schematic diagram of a lysimeter and a soil -water access tube <br />in the reclaimed spoil. <br />Eighteen bedrock wells are installed in the study area. At four sites <br />within the study area, a bedrock well is completed in the Lennox coal, the <br />interburden (bedrock zone between the Lennox coal and the Wadge coal), the <br />Wadge coal, and the underburden (bedrock zone below the Wadge coal). In <br />addition, two bedrock wells (SSU287 and SSD487, table 9) are completed deeper <br />in the underburden at the Spring Creek site, each in separate aquifers. <br />Seven wells were installed in reclaimed spoil in the study area. Three <br />reclaimed spoil wells are at the Spring Creek site (fig. 5) and four reclaimed <br />spoil wells are at the Cow Camp Creek site (fig. 6). <br />Locations and names of wells (bedrock and reclaimed spoil wells) are <br />listed in table 9. Well depths and intervals and zones of completion also are <br />listed in table 9. Information about geophysical and lithologic logs is <br />listed in table 10 and shown in figures 10 through 13. Water levels at the <br />bedrock wells were measured with a pressure gage if the hydraulic head was <br />above the top of the well casing and with a steel tape if the water level was <br />below the top of the well casing during site visits (table 11). Hydrographs <br />showing hydraulic head for the bedrock wells are shown in figures 14 to 17. <br />All of the bedrock aquifers in which wells were completed during this study <br />were under confined conditions. Hydraulic head in all of these bedrock wells <br />was above land surface. Water levels in the reclaimed spoil wells were <br />measured with a steel tape (table 12). Hydrographs for the reclaimed spoil <br />wells are shown in figures 18 and 19. Hydrographs for the reclaimed spoil <br />wells equipped with continuous recorders are shown in figures 20 and 21. Mean <br />daily water levels for the reclaimed spoil wells equipped with continuous <br />recorders are listed in tables 13 and 14. <br />11 <br />