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MASS BALANCE <br />"B" PIT VOID AREA ..................................................... 1,350,903 BCY. <br />"A" PIT VOID AREA .................................................... 363,904 BCY. <br />EXCESS SPOIL REMAINING ON SITE ..................... 840,000 BCY. <br />CEC disposed of 26,012 tons of fly and bottom ash in the south end of "B" <br />PIT, using approximately 25,000 BCY. of overburden material to cover the <br />disposal area, controling dust and fugitive debris in the immediate area. <br />Very small amounts of overburden material were excavated from the Long <br />Term Spoil area in 1994. However, approximately 100,000 BCY. of <br />topsand, debris, and overburden were excavated in the Tipple Facilities <br />area of which approximately 10,000 BCY. were disposed in "A" Pit, 31,000 <br />BCY. in the reclamation re-work area, and 60,000 BCY. reclaiming the <br />evaportation pond and road areas. <br />TRANSITION YEAR 1993-1994 <br />1n the past, CEC has not compared contour lines on aerial surveys from o^e <br />• year to the next, other than informally overlaying my!ars for a quick <br />confirmation of areas. With the CAD system this can be done much more <br />sophisticated. When comparing the 1993 base elevation map with the <br />1994 base elevation map, the ground surface elevation contours do not <br />always overlay each other in areas that they should (I.E. where no <br />earthwork operations have taken place during the years time). Whereas <br />all Physical Features such as buildings, roads, telephone poles, fences, and <br />survey control points depicted on the 1993 and 1994 maps overlay each <br />other almost exactly. Because we have not used this method or compared <br />Aerial ,'Survey contours, we can only speculate the reason for this <br />discrepancy. The 1993 map was originally a survey map developed by CAS <br />and was probably hand created, through the process of digitizing and <br />technological update by both IC and CAS, some small erroneous data <br />discrepancies have occurred. However, CEC feels the 1993-1994 <br />transition year will be the exception rather than the norm for future years <br />and eventually this modeling technic will create a win - win situation for <br />all involved. (ALL MODELS ARE PRESENTED IN THE REAR OF THIS SECTION) <br />• <br />AMR-1994 -73- STIPULAflON #17 <br /> <br />