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PA-1900284 – Informational Letters 17 Pacific Gas and Electric Company Attachment 1 -Gas Facilities There could be gas transmission pipelines in this area 'M'lich would be considered crttical facilities for PG&E and a high priority subsurface installation under Calrtornia law. Care must be taken to ensure safety a nd accessibility. So, p lease ensure that if PG&E approves work nea r gas transmission pipelines it is done in adherence ~h t he below stipulations . Additiona ll y, the following link pro vides addftional information regarding legal requi rements under Calrtornia excavation laws : https://www.usanorth811 .org/imaqes/pdfs/CA-LAW-2018.pdf 1 . Standby Inspection: A PG&E Gas Transmission Standby Inspector must be present during any demolition or construction activtty that comes with in 10 feet of the gas pipeline. This includes all grading, trenching, substructure depth verifications (potholes), asphalt or concrete demolition/removal, removal of trees, signs, light pole s, etc. This inspection can be coordinated through the Underground Service Alert (USA) service at 811. A minimum notice of 48 hours is required. Ensure the USA markings and notifications are maintained th ro ughout the duration of your work. 2. Access: At any time, PG&E may need to access. excavate, and perform mrk on the gas pipeline. Any construction equipment. materials, or spoils may need to be remov ed upon notice . Any temporary construction fencing installed ~hin PG&E's easement muld also need to be capable of being removed at any time upon notice . Any plans to cut tempora ry slopes exceeding a 1 :4 grade v.ithin 10 feet of a gas transmission pipe line need to be approved by PG&E Pipeline Services in writing PRIOR to performing the work. 3. Wheel Loads: To prevent damage to the buried gas pipeline, there are weight limits that must be enforced whenever any equipment gets wtth in 10 f eet of traversing the pipe. Ensure a list of the axle weights of all equipment being used is available for PG&E 's Standby Inspector. To confirm the depth of cover, the pipeline may need to be potholed by hand in a few areas. Due to the complex va riabilfty of tracked equipment, vibratory compaction e quipment, and cranes, PG&E must evaluate those ftems on a case-by-case basis prior to use over the gas pipeline (provide a list of any proposed equipment of this type noting model numbers and specific attachments). No equipment may be set up over the gas pipeline while operating. Ensure crane outriggers are at least 10 feet from the centerline of the gas pipeline. T ransport trucks must not be parked over the gas pipeline 'M'lile being loaded or unloaded. 4 . Grading: PG&E requires a minimum of 36 inches of cover over gas pipelines (or existing grade if less) and a maximum of 7 feet of cover at all location s. The graded surface cannot exceed a cross slope of 1 :4. 5. Excavating: Any digging within 2 feet of a gas pipeline must be dug by hand. Note that while the min imum cl earance is only 12 inches, any excavation mrk within 24 inches of the edge of a pipeline must be done v.ith hand tools. So to avoid having to dig a trench entire ly with hand tools, the edge of the trench must be over 24 inches away. (Doing t he math for a 24 inch PG&E Gas a n d Electric Facilities Page 2