ARCHIVED REPORTS LEC APPLICATION FOR CERTIFICATION

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5.3 CULTURAL RESOURCES mechanical equipment used in excavation,mixing, and spreading within the plow zone and then,further disturbed by the construction of the WPCF and the STIG plant. However, intact cultural deposits could be present below the plow zone adjacent to the buildings. The proposed natural gas line has been disturbed by the placement of a previous underground high pressure gas line along the same linear area and previously disturbed sediment would not contain cultural material in context. Cultural sensitivity is considered low to moderate within the LEC area as the Union Pacific Railroad,historically the Western Pacific Railroad,runs through the eastern end of the proposed natural gas line corridor.Two other short discrete segments of this railroad are previously recorded north of the project and buffer areas as P-39-00098, CA-SJO-000292-H. The section of the Western Pacific Railroad located within the proposed natural gas line corridor runs along the footprint of the original grade;however,modern upgrades to the rail line,including modern rail crossings,upgraded rail lines and ties are extant. Additionally, the rail grade itself has been modified to allow for heavier loads to be run upon the tracks. This 100 foot segment was recorded during the archaeological survey;the recorded section is limited to the section of the railroad which bisects West Armstrong and extends approximately 50 feet north and 50 feet south of the crossing. Given the local topography, distance to major stream drainages or other archaeologically sensitive features, and the scale and scope of previous ground disturbance in the area, archaeological sensitivity of the surface soils of the LEC site and appurtenant proposed facilities is considered low. The sensitivity of the underlying soils is considered moderate to low, given that the possibility exists for intact cultural deposits to be present beneath the plow zone. The archaeological sensitivity is low to moderate because the site is located relatively near a slough,White Slough,situated less than 0.25 mile from the LEC facilities, because of the low density of previous finds in this general area, despite previous surveys, and because of the presence of the historic WPRR on the eastern end of the project area. 5.3.1.5.3 Architectural Survey In addition to a reconnaissance conducted by Ms. Lawson,historical USGS topographic maps were reviewed to determine whether potentially historic buildings and structures (more that 45 years old)were located within 0.5 mile of the LEC project site. No architectural survey was conducted for the proposed gas line, as this line will be placed below ground;thus,no negative visual impacts are expected. Small rectangles on these maps indicate the locations of homes,barns,and other structures that stood when the map was prepared. Examination of the maps,including a GLO plat map for T3N,R5E (1853- 1867) and T3N,R6E (1853-1865),the Thompson and West(1879) Map Number One,the 1939 Lodi 15' United States Army Corps of Engineers map,the 1952 Terminous 7.5' USGS topographic map, and the 1953 Lodi South 7.5' USGS topographic map showed that no historic buildings were located within 0.5 mile of the project site. The 1952 Terminous 7.5' USGS map shows two structures, labeled'pump house' situated adjacent and directly south of the project area. Both of these structures are now gone and only one large concrete standpipe which was likely related to the pump houses remains. This standpipe was photographed during the survey. 5.3-12 SAC/371322/082330008(LEC_5.3_CULTU RAL.DOC)