Utility trenches near concrete foundations must comply with strict excavation boundaries and backfill compaction requirements per the geotechnical report. Digging for pipe trenches parallel to the footing is restricted within the specified boundary zone defined by a one-foot-six-inch dimension from the foundation edge. Utility trenches and piers require proper backfill and compaction following geotechnical specifications. Excavation slopes near footings maintain a two-to-one slope configuration to preserve structural subgrade integrity.
NO DIGGING FOR PIPE TRENCH PARALLEL TO FOOTING WITHIN THIS BOUNDARY UTILTY TRENCHES BACK FILL & COMPACT PIER GEOTECHNICAL REPORT 2 1 1'-6"
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