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corridor that will be "profoundly" disturbed by excavation and closing of the <br />pipeline trench. A permanent easement of 30 to 50 feet for the pipeline will be <br />sought in negotiations with the various landowners. , <br />26. Section 2.2.1, page 2-11 -The Plan states that "...the design and installation of the <br />pipeline in accordance with Williams' standards". What are Williams' standards? Under what <br />authority are these standards adequate? <br />See response to Item 18 . <br />27. What are "Williams' specifications" for applying FBE and why are they adequate? <br />This statement should be ignored. It seems that specifications for applying FBE is a <br />materials construction issue that is not really pertinent to the EIS. <br />28. What aze the bedding requirements specified by Williams and why are they adequate? <br />See Section 12 of "The Williams Companies Onshore Pipeline Construction <br />Specifications" (9 June 1997). These bedding requirements meet or exceed the DOT <br />pipeline standards given in 49 CFR 195.252. <br />29. To quantify impacts to soils, we need to know how wide the pipeline trench will be and <br />what is the totgl volume of soils that will be disturbed. In addition, installation of the 44-mile <br />pipeline will result in the displacement of thousands of cubic yards of material for both the <br />amount of space the pipeline will take as well as some swell factor for the amount of material <br />that is removed. What will be done with this excess material? Spreading it over the ROW is not <br />usually acceptable because of the large volume of material and because it is poor quality subsoil <br />that is difficult to reclaim. <br />The pipeline trench will be 72 to 80 inches wide and 54 to 60 inches deep. The <br />trench depth includes room for 6 inches of bedding under the pipe, the 17-inch to <br />21-inch total diameter of the insulated pipe, and 30 to 36 inches of topsoil required <br />depending on the presence of rock substrate. <br />Some of the excess soil material will be mounded over the closed pipeline trench to <br />compensate for anticipated settling of materials replaced in the trench. The <br />remaining material will be disposed of according to the standard practice of thin <br />spreading excess soils over the right-of--way. We calculate that, excluding any swell <br />factor, spreading the volume of soil displaced by the two pipelines across the 50 foot- <br />zvide permanent easement would result in the addition of an average of less than 1 <br />inch of soil to the surface. Spreading this displaced soil over the entire 125 foot- <br />zvide construction right-of-zvay would result in the addition of an average of less <br />then one-third inch of soil to the surface. Taking into account some additional <br />17 <br />