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PROJECT : Ahern Road Fueling Station February 28 , 2022 <br /> Job No : 20-544 Ross P . Shoat Civil Engineer <br /> i <br /> I <br /> z <br /> ] 2' <br /> MW1 M�4 ' :P �;CP4 <br /> TRENCH CROSS SECTION ( NOT TO SCALE ) <br /> See Exhibit Sheets for Further Details <br /> Installation Specifications For Trenches <br /> Trenches must be installed with trench bottoms level within 2 inches deviation over the length of the trench . <br /> Install lateral pipe level, with orifices facing up . Drill orifices with a sharp new bit and clear out any shavings left <br /> behind . ( pre-drilled pipe may be used ) Prior to testing assure drain rock is cleared away from each orifice, leave <br /> orifice shields off for a run-out test to adjust squirt height along each lateral ( adjusted for hydraulic variance from <br /> lateral to lateral ), schedule Engineer and County inspector (as required ) for testing and certification . <br /> After testing has been approved, install all orifice shields, complete drain rock installation, cover with filter fabric <br /> and install final soil cover and seed . Request a final inspection from the county inspector. Cover soil shall be <br /> native loam material 12" over the trench drain rock and shall be slightly mounded over each trench to <br /> accommodate settlement . Disturbed area shall be protected by placement of straw mulch and appropriate <br /> seeding for the area . <br /> Page 10 Of 11 <br />