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GRAVELLESS TRENCH CONSTRUCTION DETAILS - ! <br /> 1 1 /2" Inspecl,o.--, -� <br /> Inlet Pipe to Next Well <br /> Drop Box 1 112 Male <br /> • <br /> _ Adapter <br /> '•.Aim r.�.....� �/ <br /> tii 6.-•1Z Soil Backfill �J`v • <br /> -�?' <br /> sk '''".7 Corrugated Tubing Covered <br /> 9s52./ with Geotextile Fabri 955,s <br /> Itir)n n n n n nr &7r/5. <br /> 9-5" 3F-- 9�n <br /> Drop Box <br /> Trench Length = up to 100 Feet • <br /> Overfill to Allow <br /> NOTES : 1 . Bottom of trench must be level. <br /> for Settling Top <br /> of tubing must be level. <br /> e Soil ����, 12" of Soil 2. Scarify trench bottom and sidewalls <br /> Backfill <br /> 2C , Backfill at least 12 inches above trench bailor: <br /> t to expose natural soil. <br /> 12" 0. c . <br /> -� - - - - '---� 3. For proprietary products consult <br /> Holes Located manufacturers performance criteria <br /> 4_24" <br /> at 4 and <br /> 8 O'Clock <br /> :-figure D-29 <br />