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• <br />APPENDIX 9-6 (Continued) <br /> <br /> l <br />Depth Suitabi lity Pa rameters Limiting Rec. TSD <br />i <br />2 3 4 C <br />03 45 <br />46 7 S <br />B F <br />9 b <br />C <br />10 <br />Hor <br />zon (Inches) Sat ~ <br />T ex SAR aC C Frag Co n ui t actors y <br />omponent <br />Silas (Additional) SN: 57 <br />A 0-14 ~ 5 S 5 S S S S 47 <br />C1 14-28 S 5 5 S S S 5 <br />- C2 28-47 S 5 S S S 5 5 <br />C3 47-60 5 5 S S S U U Con = VFI/VS/VP <br />The average thickness of suitable topsoil is 43 inches (N=4). Unsuitable clay and/or sat uration percentages are encountered in the buried horizons <br />or substratum horizons below this depth. <br />Skyway MU: 70D; SN: 23 <br />Al 0-8 5 S S S S S 5 37 <br />A2 8-26 5 S 5 S S S S <br />A3 26-32 S 5 5 S S S S <br /> <br />°~ C 32-37 5 S 5 S S S S <br />... Skyway (Additional) SN: 24 <br />Al 0-6 S 5 S S 5 S S 24 <br />A2 6-13 S S 5 5 S 5 S <br />A3 13-24 5 S S S S S S <br />C 24-30 5 S S 5 U S U RF = 40+~ <br />SkYwaY (Additional) SN: 29 <br />Al 0-6 S S 5 S S S 5 38 <br />A2 6-24 S S 5 S S 8 S <br />A3 24-32 S S 5 5 5 5 S <br />C 32-38 S S S S 5 S S <br />The average thickness of suitable topsoil is 33 inches (N=3). The thin C horiz on, typically encountered between the mollic epipedon and sandstone <br />bedrock, is suitable when rock fragment content is less than 35 percent. Moder ately deep sandstone or siltstone bedrock prevent the salvage of <br />additional soil. <br />