9 1 B egin to plac e the top back ll a Ma terial should meet A ppendix C A c c e p t able F ill Ma terial b P lac e ma terial utilizing a lo w ground pressure L GP equipment do zer Maximum D5 L GP or similar or pref er ably a c onv ey or boom DO NO T DRIVE OR DUMP FROM DUMP TRUCK S DIRE CTL Y ONT O THE MODULE S DO NO T DRIVE ON THE MODULE S WITHOUT A MINIMUM 12 305 mm C O VER c C ompac t as required b y engineer o f rec o rd I U tilize a st a tic roller producing less than 10 psi per roller unless o therwise appro v ed while ensuring a minimum 12 305 mm o f c o v e r T o do so a minimum 15 381 mm lay er o f ma terial may be required to ac c ount f o r c ompac tion II S heep f o o t roller s are no t permitted 2 U pon c ompletion o f top back lling if speci ed wr ap the s y s tem in geo textile f abric and or liner per the ma terial manuf ac t u rer s rec ommenda tions 3 OP TIONAL Inst all met allic t ape around the perimeter o f the s y s tem to mark the area f or fut ure utility detec tion 7 0 top b a ckfill