SFPP, LP submits the Prepared Direct Testimony and Exhibits of James B Kehlet under IS05-230.
08/25/20054.0 ENVIRONMENTAL ANALYSIS The environmental consequences of constructing and operating the proposed Port Arthur LNG Project would vary in duration and significance. Four levels of impact duration were considered: temporary, short term, long term, and permanent. Temporary impact generally occurs during construction with the resource returning to preconstruction condition almost immediately afterward. Short-term impact could continue for up to 3 years following construction. Impact was considered long term if the resource would require more than 3 years to recover. A permanent impact could occur as a result of any activity that modifies a resource to the extent that it would not return to preconstruction conditions during the life of the project, such as the construction of an LNG terminal. We considered an impact to be significant if it would result in a substantial adverse change in the physical environment. In this section, we discuss the affected environment, general construction and operational impact, and proposed mitigation for each resource. We have also included a brief discussion on the transit corridor for the LNG ships. Sempra, as part of its proposal, agreed to implement certain measures to reduce impact. We evaluated Sempras proposed mitigation to determine whether additional measures are necessary to reduce impact. These additional measures appear as bulleted, boldfaced paragraphs in the text. We will recommend that these measures be included as specific conditions to authorizations that the Commission may issue to Sempra. Conclusions in this EIS are based on our analysis of the environmental impact and the following assumptions: Sempra would comply with all applicable laws and regulations; the proposed facilities would be constructed as described in chapter 2.0 of this document; and Sempra would implement the mitigation measures included in the application and supplemental filings to the FERC. The transit corridor for the LNG carriers would traverse open water and estuarine habitats. Approximately 10.2 miles of the transit corridor are within confined waters (see figure 4-1). Portions of the transit corridor are proximal to shoreline habitats. Shoreline habitats adjacent to the transit corridor include salt marsh, emergent wetlands, forested wetlands, grasslands, and shrublands. The aquatic and shoreline habitats support a variety of wildlife which are described in sections 4.6 and 4.7. LNG is less dense than fresh or sea water, so it floats on the surface. Immediately upon contact with any warmer surface such as water or air, it begins to evaporate. As the LNG vaporizes, a vapor cloud may form which is initially heavier ...