Utility trenches near building foundations require specific backfill and compaction procedures governed by the geotechnical report. Excavation for pipe trenches is strictly prohibited within the designated triangular boundary adjacent to the footing to maintain bearing soil integrity. Trenches must maintain a one-foot-six-inch minimum horizontal clearance from the footing edge where applicable. Backfill materials must be placed and compacted according to structural requirements. Sloped excavation limits follow a two-to-one slope ratio away from the footing bearing plane.
NO DIGGING FOR PIPE TRENCH PARALLEL TO FOOTING WITHIN THIS BOUNDARY UTILTY TRENCHES BACK FILL & COMPACT PIER GEOTECHNICAL REPORT 2 1 1'-6" P 4 <3 A A <3 4 <7 -I I 4- ■' P <7 <7 p 4 4 <7 ■4 <7 A I •I , X-
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