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NOISE 25. Outdoor Noise Levels: Best available noise reduction measures shall be implemented by the applicant to reduce noise levels in primary outdoor use areas (backyards) of new residential development to an Ldn of 60 dB. The subdivider shall specify what additional, reasonable measures have been taken in this regard.Where it is not possible to reduce noise levels to this level using practical application of the best available noise reduction measures, an exterior noise level of up to 65 db may be allowed. [Master Plan Policy 11.3.1 (e)] In the case that noise levels cannot be reduced to the design noise level of 60 dB, the applicant must provide notice via a note on the deed of each lot stating that exterior noise levels may exceed 60 dB. Timing: Inclusion of note on the Final Map approved by CDD prior to Final Map approval, and inclusion of note on deed prior to issuance of building permits. 26. Interior Noise Levels: Interior noise levels for housing proposed to be located in areas exposed to an exterior noise level of an Ldn above 60 dB shall be maintained at or below an Ldn of 45 dB. [SPII Implementation Measure 11.2.1 (4)] Timing: Compliance verified prior to the issuance of building permits. 27. Construction Noise: The following measure shall be implemented during construction: • Construction shall be restricted to the hours of 6:00 AM to 8:00 PM on weekdays. Extended hours which may include Saturdays and Sundays may be allowed through prior notice to adjacent residents and landowners, and prior approval of the MHCSD for infrastructure construction and CDD for building permits. • All internal combustion engines shall be equipped with exhaust mufflers that are in good condition and appropriate for the equipment. Timing: Inclusion of the above measures as notes on Improvement Plans approved by CDD and MHCSD prior to Final Map approval. GEOLOGY AND SOILS 28. Seismic Safety: The applicant shall comply with the applicable provisions of the MHCSD Emergency Preparedness Plan. Timing: Inclusion of a note on Improvement Plans approved by CDD and MHCSD prior to approval of Final Maps. (SPII Implementation Measure 6.8.3 [1]) 29. Geotechnical Investigation Recommendations: The applicant shall follow the recommendations of the following geotechnical investigations: a. Geotechnical Exploration, Neighborhood K, Mountain House, California, prepared in September of 2010, by Engeo Incorporated. Timing: Inclusion of a note on Improvement Plans approved by CDD and MHCSD prior to approval of Final Maps, and the incorporation of all recommendations of the geotechnical engineering studies into site preparation and construction of each dwelling prior to approval of building permits. (SP II Implementation Measure 6.8.3 [2]; San Joaquin County Development Title, Chapter 9-905) PA-1000266 &267—Conditions of Approval 6