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outfall of stock tank T-26. It is difficult to compare the as-built channel profile to the designed channel profile because of the significant changes made to this channel and channel PM-2B. The following chart shows the GPS data for post-mining channel PM- 2D. GPS Height Northing Easting Z Corr. Correct Z Exh D Elev. Z Diff. Exh 20- 5.9 Station 7797.5 4469519.7 310387.4 40.620 7838.143 7838 -0.143 7800 0+00 7922.6 4469374.0 310435.1 40.620 7963.179 7960 -3.179 7900 5+03 7933.5 4469302.8 310436.1 40.620 7974.095 7970 -4.095 7949 7+36 8006.0 4469183.8 310441.2 40.620 8046.647 8048 1.353 8051 11+27 8019.7 4469147.8 310452.5 40.620 8060.369 8060 -0.369 8091 12+50 8076.5 4469087.0 310469.8 40.620 8117.160 8110 -7.160 14+58 8099.1 4469033.1 310428.8 40.620 8139.690 8136 -3.690 16+80 - Channel PM-2E runs from southeast to northwest and intercepts channel PM-21) at approximately station 11+27. The channel has an as-built length of approximately 497 feet and a designed length of approximately 509 feet. The channel design specifies a bottom width of 3 feet, an overall depth of 0.6 feet and a lining of 6 inch riprap. The observed channel bottom width was between 7 and 20 feet, its depth was between 1 and 2 feet and its lining was 4-18 inch riprap. The as-build channel location is approximately 25 feet west of the design location, primarily due to the change in location of channel PM-213. The as-built channel PM-2E does, however, generally follow the designed flow path. The channel had a fair amount of vegetation growing in the riprap and no visible signs of erosion. The as-built channel profile is less than four feet lower than the designed channel profile and maintains an identical grade. The following chart shows the GPS data for post-mining channel PM-2E. GPS Height Northing Easting Z Corr. Correct Z Exh D Elev. Z Diff. Exh 20- 5.9 Station 8006.7 4469184.5 310446.4 40.620 8047.282 8050 2.718 8050 0+00 8048.7 4469141.5 310508.4 40.620 8089.326 8092 2.674 8094 2+48 8092.7 4469066.6 310520.4 40.620 8133.322 8136 2.678 8134 4+97 - Channel PM-3 runs along the north side of the Seneca II-W South area and flows from northeast to southwest. It flows into channel PM-2 and ultimately into Pond 016A. The channel has an as-built length of 2,655 feet and a designed length of approximately 2,735 feet. The channel design specifies a bottom width of 3 feet, an overall depth of 1.1 feet and a lining of either 6 inch riprap or TRM. The observed channel bottom width was between 4 and 10 feet, its depth was between 1 and 3 feet and its lining was either 9 inch riprap or TRM, depending on the location. The as-built channel location was basically the same as the designed channel location but the as-built channel does not meander as much in the middle portion and it does not go up the regraded slope as high as the designed channel. The channel itself was stable with very little erosion, although there was some filling going into the channel and areas on the north side of the channel with