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Draft Supplemental Environmental Impact Report Page VIII-73 Forward Inc.Landfill 2018 Expansion Project Airport Layout Plan Drawing-Future, the planned future location of the displaced threshold for Runway 29R/11L is at Latitude 037°53' 10.25"N and Longitude 121° 13' 27.80".These coordinates are the same as the current location of the displaced threshold, shown in Sheet 3,Airport Layout Plan Drawing-Existing. However,the Airport is planning to move end of runway approximately 400 feet to the west, further away from the landfill (see Sheet 4,Airport Layout Plan Drawing-Future). As shown on Sheet 4, Airport Layout Plan Drawing - Future, the concrete pad of the Cargo Apron is located on the west side of the airport in the grey colored rectangle north of the runways. The existing east side of the Cargo Apron is located approximately 7600 feet west of the end of Runway 29R/11L. The Cargo Apron is planned to expand approximately 800 feet to the east, but will still be 6,800 feet west of the end of Runway 29R/11L, and would be more than 10,000 feet from the landfill. If an airport runway extension were proposed in the future,the Airport would be required to conduct the appropriate CEQA evaluation of its potential environmental impacts. J-10. The DSEIR analyzes the potential for odors in Impact D.3.,beginning on Page IV.D-23 of the DSEIR.The analysis acknowledges that the garbage is the source of the odors,and considerable detail is provided on the chemicals that contribute to the odors. The DSEIR also discusses the components of odor sensory perception, and the use of human subjects and sophisticated dilution equipment to determine detection thresholds. Measuring odors is not an exact science,but when they become strong odors, almost all people will react negatively. That is why Forward Landfill relies on self-monitoring to identify odor problems before odors affect off-site receptors and cause odor complaints. With regard to suppressant systems, these were not mentioned in the DSEIR because they are not used by Forward Landfill. Suppressant systems (or masking or neutralizing M agents)are considered the last option for odor control by the Forward Landfill Odor Control Management Plan. The Odor Control Plan was included at Attachment 7 of the 2013 Final EIR(page 766 of the complete PDF file on the County website). The Odor Control Plan is also provided as Attachment 4 to this Response to Comment document. Experience has shown that the use of odor masking or neutralizing agents has proven to be extremely difficult in a landfill environment. By contrast,these agents can be effectively applied at transfer stations. As stated on Page IV.D-23 of the DSEIR: "A Public Records Request was submitted to the SJVAPCD on June 25,2018, requesting information on odor and dust complaints for Forward Landfill since 2015. On June 26,2018, the SJVAPCD indicated that there are no complaint records on file for Forward Landfill since 2015 (over the last three years)." The DSEIR disclosed the odor complaint history of the Landfill provided by the SJVAPCD through the public records request.