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SECTION 2.0 CLARIFICATIONS TO DRAFT ENVIRONMENTAL IMPACT REPORT The following is a list of clarifications to the Shea Homes Residential Project Draft Environmental Impact Report. Those parts of the text that are underlined indicate deletions and revisions to the Draft Environmental Impact Report. Section 2.0, Table 2-1, Page 7 The following mitigation measure has been revised. Grading Plans and Building Plans for the proposed proj ect shall note that construction activities on the project site shall take place between the hours of7:00 a.m. and 8:00 p.m. Monday through Friday and 8:00 a.m. to 8:00 p.m. on Saturdavs and no construction activity on Sundays or federal holidays. No construction equipment on the project site shall operate including warming up until after 7:00 a.m. Monday through Friday and after 8:00 a.m. on Saturdavs. Section 3.2 Proposed Project During the public review period for the DEIR. the proiect developer has proposed a modification to the proiect description. The third floor area of the homes originallv proposed as attic storage space would now become habitable space. The third stOry area would consist of approximatelv 580 square feet of area and have been designed to meet the 45 dB CNEL interior noise standard. The construction materials for the third floor area would depend on the location of the home. The third stOry area for the homes on Lots 10.22. and 27 would be constructed with quiet rock panel exterior walls with a minimum noise rating of ENWR 49 with an additional laver of quiet rock panel on the ceiling assemblv. The northerlv facing windows along Interstate 5 would have a minimum noise rating ofEWNR-45. The third stOry area for the homes on Lots 12. 13. 16. 18.20.21. 24. 25. would be constructed with exterior walls consisting of wood stud construction with stucco exteriors and a minimum 1/2' inch gypsum drywall on the interior. All onhe exterior walls would include fiberglass insulation in the stud cavities. The windows on the third floor area would have a minimum noise rating of EWNR-22. The roof construction would incorporate concrete or composition tiles on the exterior and a minimum y,-inch gypsum drywall on the interior surface. Attached are noise reduction calculations provided bv the proiect' s acoustical consultant. Mestre Greve Associates. demonstrating that the proposed construction materi als for the third floor area would be able to achieve the 45 dB CNEL noise standard. The modification to the proiect description with the proposed construction practices would not result in a new significant impact or substantiallv increase the severitv of environmental impact associated with the proiect or result in the need for additional mitigation measures. 75G,.31