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DEC-29-'94 THU 09:38 iD:C D ~ M RALEIGH N C FAX N0:919-781-5730 ~173 P~9 <br /> <br />3,6.2 <br /> <br />shall include a fracture trace analysis and Rose Diagram, based at a minimum on an <br />evaluation of stmctu_,ally controlled £eatu~es identified on a topographic map of the <br /> <br />Field Reuort - CDM will prepare a report on field observations of the site that includes <br />information on the fo]lowing: <br /> <br />(^) <br /> <br />(B) <br /> <br />Topographic setting, springs, streams, drainage features, existing or abandoned <br />wells, rock outcrops, (includiag trends in strike and dip), and other fearares <br />that may affect site suitability or the ability to effectively monitor the site: and, <br /> <br />Groundwater discharge feat~u~es, A more extensive hydrogeologic investigation <br />may be. requimd for a proposed site where the owner or operator does not <br />control the property from any landfill unit boundary to the controll/ng, <br />downgradlent, groundwater discharge/eaturc(s). <br /> <br />3.6.3 Czoss Sec6ons <br /> <br />3.6.4 <br /> <br />CDM will prepare cross sectio~ that identify hyd~ogeologic and 1Rhologic units and <br />characterize the vemical and horizontal components of ground water flow. <br /> <br />Water Table Irdormation <br /> <br />CDM will obtain water table elevations meas~ed at time of boring, 24-hours, and 7- <br />days for all new and ex/sting borings. CDM will prepare a tabulation of stabilized <br />water table elevations for all new and ex/sting piezometers tha~ includes the previous <br />and subsequent water level data collected by the County. <br /> <br />CDM will p~epare tabulation of stabilized water table elevations for all new <br />piezometers combined with the historical water table elevations from the previously <br />installed piezometers in order to develop a understanding of seasonal fluctuations in <br />the ~'ound waI~ table. <br /> <br />CDM will prepare an estimation of the long.term seasonal high wate~ table elevations <br />based on stabilized water table readings, hydrographs of oth~ v~lls in the ar~a (as <br />readily available), meteorological and climatological data from nearby reporting <br />stations, and any other readily available information. <br /> <br />CDM will prepare a discussion of any natural or man-made activities that have the <br />potential for causing water table fluctuations, such as: river stage changes, flood pool <br />changes of reservoirs, high volume production wells, injection wells, or any other <br />s/m/lar features. <br /> <br />Page 7 of 17 <br /> <br /> <br />