PG&E Gas Pipeline 123 Section 2B1 Replacement Project (SAA 1600-2014-0064-R2)

PG&E Gas Pipeline 123 Section 2B1 Replacement Project (SAA 1600-2014-0064-R2)

The California Department of Fish and Wildlife is executing Lake or Streambed Alteration Agreement number 1600-2014-0064-R2, pursuant to Section 1602 of the Fish and Game Code to the project applicant, Pacific Gas and Electric Company. Section 2B1 of L-123 must be replaced to ensure the safety and reliability of the existing gas transmission pipeline. In order to replace this section of pipeline, approximately 3,966 feet (0.75 mile) of 16" pipe will be installed under the existing pipeline via horizontal direction drill (HDD). The HDD will be installed to a depth of between 78 to 120 feet beneath Pleasant Grove Creek and three unnamed tributaries to Pleasant Grove Creek, all of which are intermittent streams. A 260-foot by 150-foot staging area will be required for the northern HDD entry pit and will provide staging and operation of HDD support equipment and vehicles including a drilling rig, mud tank and pump, blackhoe or excavator, forklift, bulldozer with wide boom, and various utility and crew vehicles. The northern staging area is located in annual grassland habitat with access from Nichols drive to minimize off-road travel. The southern staging area for the HDD exit point will consist of a 200-foot by 40-fot staging area, with an additional 1,160-foot by 40-foot area located immediately south of this staging area to be used for pipe stringing and fabrication. All of the southern staging area will be contained within a paved private drive way, norh of New Meadow Drive. Once the new pipeline is installed it will be connected to the existing pipeline and place din service. The old pipe will be cleaned and retired in place. Additionally, in accordance with the TD 4490S, Gas Pipeline Rights-of-Way Management Standard, vegetation within the utility right-of-way along Pleasant Grove Creek and unnamed tributary #3 will be trimmed to ensure accurate monitoring and surveying of the pipeline. All vegetation within 0 to 5 feet from the outer edge of both sides of the pipeline will be cut. Trees, woody shrubs, or woody vegetation exceeding 4 inches diameter at breast height (DBH) at maturity with trunks or main branches 5 to 10 feet from the outer edge of the pipeline must be cut and trees, woody shrubs, or woody vegetation exceeding 36 inches DBH at maturity, with trunks or main branches located 10 to 14 feet from the outer edge of the pipeline must be cut. Vegetation will cut at ground level and stumps will remain in place.

Roseville

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