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Draft Environmental Impact Report Page IV.K-10 Forward Landfill Expansion increase in height and mass of the proposed project would remain a significant unavoidable impact. 3 Mitigation Measure K.3: No mitigation measures are available to reduce this impact to a less- than-significant level. !, Impact K.4. The proposed project would increase the permitted number of daily vehicles, add waste solidification activities,receive and process additional beneficial reuse material, expand electricity generation,and move ancillary facilities,which could generate visual impacts. The proposed increase in daily vehicles from 620 to 960 would increase activity on the { # site. Waste solidification would occur in below grade basins in the southeast corner of the site, near the existing materials recovery facility (MRF). Additional beneficial reuse material could have the effect of increasing the volume of these materials that are processed on the site, and may involve additional temporary stockpiles of materials. The expanded electricity generation may use the existing landfill gas-fired electrical generation plant on the site, or may involve a new generation facility occupying approximately 0.3 to 0.5 acres in the northeastern corner of the site near the existing blower/flare station where the landfill gas (LFG) is currently directed, consisting of either three to five reciprocating engines located inside a building (probably a rectangular flat roof metal building), with the stacks on top of the building, or one turbine, probably located in an enclosed container approximately 37 feet long by 10 feet wide with a t stack height of 30 to 40 feet, depending on air permit requirements. Movement of ancillary facilities would change the location on the site of leachate and sedimentation basins, and the scale house, scales, fee booth, and other support facilities,but would not add additional . facilities. Waste solidification would add a new activity to the project site,but would occur in below- grade basins. This would not result in a substantial visual change at the landfill where various materials are currently processed. If a new electricity generation facility is constructed, the height and bulk of the building would be relatively small in comparison with the existing landfill hills and facilities, and would not substantially alter the visual character of the existing landfill. None of the other project changes would add new activities or materials received, or add new structures. These changes would not substantially alter the visual character of the landfill,which currently involves a substantial amount of vehicle activity, waste processing, and temporary material stockpiles. The visual impact of increasing the permitted number of daily vehicles, adding waste solidification activities,additional beneficial reuse material, additional electricity generation facilities (if any), and moving ancillary facilities would be less than significant. Mitigation Measure K.4: None required. Impact K.S. The proposed project would increase the permitted number of daily vehicles, add waste solidification activities,receive and process additional beneficial reuse material, expand electricity generation, and move ancillary facilities,which could generate additional sources of light. As discussed above, waste solidification would occur in below-grade basins, and is therefore not anticipated to result in substantial additional light or glare. The increase in vehicle traffic and volume of materials received would intensify activity at the site,but would not add new sources of light or glare. The relocation of ancillary facilities and increased electricity generation facilities (if any)would not add buildings or facilities that could result substantial additional sources of light or glare. The following procedures are proposed as part of the project: I ' M � .