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EEC Projecr No. 1992122 <br />October 13, 1999 <br />Page 2 <br />Earth Engineering Consultants. Inc <br />approximately 15 to 20 feet below present site grades. Groundwater was encountered at <br />depths of approximately 5 to 10 feet below present site grades. <br />The monitor well materials that were installed at each of the well locations consisted of 2 <br />inch schedule 40 PVC flush jointed pipe with one 10-foot screened interval (0.010 foot <br />slots) at the bottom, and riser sections of varying lengths. The borings were scaled <br />approximately 3 feet above the screened interval with bentonite tablets, which were <br />hydrated immediately after placement. After backtilling the borings to approximately 2 <br />feet below the ground surface with neat cement grout, the top of the borings were sealed <br />with concrete and a 4-inch x 5-foot steel well protector was placed in the concrete. The <br />top PVC riser sections were trimmed to the height of the rim of the well protectors and <br />PVC slip caps were placed on the pipes. A diagram showing the typical well construction <br />is attached. <br />We appreciate the opportunity to be of service to you on this project. If you have any <br />questions concerning the enclosed report, or if we can be of further service to you in any <br />other way, please do not hesitate to contact us. <br />Very truly yours, <br />Earth Engineering Consultants, Inc. <br />Michael J. Cyy, E.I.T. <br />Project Engineer <br />IviJC/dmf