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,i prepared by a qualified Engineer. The Department of Public Works made the increased truck trip conclusion by eecently conducting their own brief traffic count. Hours of Operation i At the applicant's request, the project description on the referral has been revised to clarify what is meant by"hours of operation" and is in the process of being re-referred out to neighboring property owners and public agencies. According to the existing conditions of approval for QX-94-2, excavations may be carried out during the hours of 5:00 a.m. to 9:00 p.m. and processing plant operations may operate on a 24-hour basis. The plant is open to the public (truck haulers) during the hours of 6:00 a.m. and 4:30 p.m. The hours of public accessibility to the plant are not proposed to change. M Therefore, trucks will not be in route on Brandt Road, or any other road used for hauling, and will not affect transportation noise during the nighttime. Noise 'r Development Title Section 9-1025.9(b[2]) specifies that proposed projects that will create new stationary noise sources shall be required to mitigate the noise levels from these stationary noise sources so as to not exceed the noise level standards specified in Table 9-1025.9, Part 11. The hourly equivalent sound level (Leq), dB, for outdoor activity areas (at the property line of the receiving land use) during the nighttime (10 p.m. to 7 a.m°) shall be equal to or less than 45dB. The noise analysis conducted for the EIR indicated that noise from the plant was audible at the property boundaries and that the ambient noise level was noted as being within the range of 30-50 dB(A). which is normally classified as Very Quiet to Quiet. The only distinct sound was noted from the mandated ). backup alarms installed on mobile equipment. The noise study did not address the impact of noise during the nighttime hours. It iso unclear whether operating at night would exceed the maximum hourly equivalent sound levels of 45dB. As a result, the applicant needs to submit a noise analysis prepared by an acoustical consultant to determine whether the noise ordinance requirements specified above can be satisfied and what, if any, mitigation measures are required. Final Slope The conditions of approval for Quarry Excavation Permit No. QX-94-2 indicate that the final cut and/or fill slope (condition 1.m) shall not exceed three (3)feet horizontal to one ` (1)foot vertical. The standard ordinance requirements for quarries, as specified in Development Title Section 9-1415.3(k[6]), indicate that the final cut and/or fill slopes�� shall not exceed two (2)feet horizontal to one (1) foot vertical. This is precisely what the applicant is asking for in this Revision of Approved Actions application. Development Title Section 9-1415.3(k[3]) Slope Modification Requirement, states that the Review Authority may require slopes fatter than those specified below for safetY,�or aesthetic purposes if the proximity of the residential and other urban uses, waterways or roads, the instability of materials, or the surrounding terrain so warrants. The three (3) to one (1)final slope condition of approval was required in this case, for aesthetic l purposes. The site and surrounding lands are agricultural (rolling hills) and used for cattle grazing. The three (3) to one (1) final slope is less steep than the two (2) to ane (1) final slope, therefore, resulting in more natural terrain after the site is reclaimed. However, the research conducted by the Community Development Department indicated that five (5) out of six (6) Quarry Excavation applications submitted and approved II I