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Mountain House Specific Plan III ........................................................................................................................................................................... h. Easement Setbacks: Structure and setbacks outside but adjacent to power line easements shall comply with the provisions of this Specific Plan(see Section 6.9). i. Undergrounding of Lines:All electrical, telephone and CATV distribution lines shall be underground, where practical. j. MHCSD Energy Conservation Plan:All implementing projects shall comply with the applicable provisions of the MHCSD Energy Conservation Ordinance. 8.3 Natural Gas 8.3.1 Master Plan Summary The Master Plan calls for a natural gas transmission and distribution system that will deliver a reliable and cost-efficient source of natural gas to the community,while minimizing the risks to public health and the risk of damage to utilities and properties located adjacent to utility easements. The natural gas .- transmission and distribution systems shall be designed and constructed to assure a reliable and cost- effective source of natural gas to the Mountain House community,and to achieve a 25%savings in the consumption of natural gas as compared to standard usage. Public safety issues shall be considered during construction near natural gas transmission and distribution systems. The Master Plan assumes a 10% safety margin in the calculation of the community's gas demand and a 25%natural gas savings in the calculation of the community's gas demand. Specific Plan III specifies land ` uses and development standards adjacent to natural gas lines.The County will submit Specific Plan HI to PG&E for review. 8.3.2 Specific Plan III Description Figure 8.1 shows the proposed layout of the natural gas transmission and distribution system for Mountain House.An existing PG&E gas transmission pipeline in Mountain House Parkway serves the Mountain House community through an existing regulator station at the intersection with Mascot Boulevard that reduces the transmission gas pressure to local distribution pressure.The distribution system includes gas pipelines,generally operating at 60 psig or less,and individual gas regulators that take the natural gas directly into homes and businesses. Two existing PG&E"backbone"gas transmission pipelines, 26-inch and 36-inch in diameter, traverse the Specific Plan III site from southeast to northwest. Parallel to these two lines and within the same ` easement is an 18-inch Chevron oil products pipeline.These major facilities will remain in service through the development of Specific Plan III.A separate Pipeline Risk Analysis was conducted by the San Joaquin County Community Development Department to evaluate the risks associated with Draft 03114105 8.5 ........................................................................................................................................................................... r