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Pacific Gas snd <br />S E/ectiic Company` <br />wide trench being dug along a 36 inch pipeline, the centerline of the trench would Head to ba at <br />least 54 inches [24/2 + 24 + 36/2 = 54] away, or be entirely dug by hand.) <br />Water jetting to assist vacuum excavating must ba limited to 7000 psi9 and directed ata 40` <br />angle to the pipe. All pile driving must ba kept a minimum of 3 feet away. <br />Any plans to expose and support a PGB.E gas transmission pipeline across an open excavation <br />Head to ba approved by PG&E Pipeline Services in writing PRIOR to partorming the work. <br />6. BoringlTrenchless Installations: PGB.E Pipeline Services must review and approve all <br />plans to bore across or parallel to (within 70 feat) a gas transmission pipeline. There are <br />stringent criteria to pothole the gas transmission facility at regular intervals for all parallel bore <br />installations. <br />For bora paths that cross gas transmission pipelines perpendicularly, the pipeline must be <br />potholed a minimum of 2 feet in the horizontal direction of the bora path and a minimum of 72 <br />inches in the vertical direction from the bottom of the pipe with minimum clearances measured <br />from the edge of the pipe in both directions. Standby personnel must watch the locator trace <br />(and every ream pass) the path of the bora as it approaches the pipeline and visually monitor <br />the pothole (with the exposed transmission pipe) as the bore traverses the pipeline to ensure <br />adequate clearance with the pipeline. The pothole width must account for the Inaccuracy of the <br />locating equipment. <br />7. Substructures: All utility crossings of a gas pipeline should be made as close to <br />perpendicular as feasible (g0" +/- 75^). All utility lines crossing the gas pipeline must have a <br />minimum of 72 inches of separation from the gas pipeline. Parallel utilities, pole bases, water <br />line 'kicker blocks', storm drain inlets, water meters, valvas, back pressure devices or other <br />utility substructures are not allowed in the PG&E gas pipeline easement. <br />If previously retired PG8.E facflitles are in conflict with proposed substructures, PGBE must <br />verify they are safe prior to removal. This includes verlflcatlon testing of the contents of the <br />facilities, as wall as environmental testing of the coating and internal surtaces. Timelines for <br />PG&E completion of this verification will vary depending on the type and location of facilities in <br />conflict. <br />8. Structures: No structures are to ba built within the PGS.E gas pipeline easement. This <br />includes buildings, retaining walls, fences, decks, patios, carports, septic tanks, storage sheds, <br />tanks, loading ramps, or any structure that could limit PGS. E's ability to access its facilities. <br />9. Fencing: Permanent fencing is not allowed within PGS.E easements except for <br />perpendicular crossings which must include a 76 foot wide gate for vehicular access. Gates will <br />be secured with PG&E corporation locks. <br />70. Landscaping: Landscaping must be designed to allow PGS.E to access the pipeline for <br />maintenance and not intertere with pipeline coatings or other cathodic protection systems. No <br />trees, shrubs, brush, vines, and other vegetation may be planted within the easement area. <br />Only those plants, ground covers, grasses, flowers, and low -growing plants that grow <br />unsupported to a maximum of four feet (4') in height at maturity may be planted within the <br />easement area. <br />PGffit: Gas and Electric Facilities Page 3 <br />