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A - 5 <br />A-3 PIEZOMETERS INSTALLATION <br />A total of 16 piezometers were installed during the <br />field investigation. They were installed in borings E-1, <br />E-2, E-3, A-6, A-7, and A-8 and in 10 borings drilled <br />specifically for this purpose along the center line of <br />five proposed mine entries. Two piezometers were installed <br />along each entry; one of them close to the proposed portal <br />location and the second one farther to the south. The piezo- <br />meters are numbered lA, 1B, 2A, 2B, 3A, 3B, 4A, 4B, 5A and <br />5B. Their location is indicated on Plate 1, Site Plan and <br />on Plates 2 - 6, Profiles Along Entries. The summary of the <br />ten piezometers' installation is presented on Plate A-15. <br />All installed piezometers are open-end, stand pipe <br />piezometers. They are cased with a slotted PVC pipe, 2Z inch <br />diameter. The top of the holes was mounded with on-site soils <br />for surface drainage away from the hole. <br />aca«ro~o caav.n+o..c <br />