SU0004095 - Laserfiche WebLink

Home Browse Search

V Analysis Background On January 22, 1991, the Board of Supervisors certified Environmental Impact Report No. ER-90-8 and approved Quarry Excavation Application No. QX-90-1 to permit the removal of 2.4 million tons of rock, sand, and gravel over a 10-year period on 120 acres located east of the project site. On April 28, 2000, the Community Development Department approved a 10 percent (12 acre) expansion of QX-90-1. On December 7, 2001, the Planning Commission approved QX-99-2 to permit the excavation of two million tons of sand and gravel on 69.5 acres located northeast of the project site. One letter in opposition was received from James Shannon, president of Educators Land Development Corporation, He expressed concerns regarding the slopes, aesthetics, and noise. slopes Educators Land Development owns the property on the on the bluff and some of the lowland, southeast of the project site. Mr. Shannon intends to develop that property, which is zoned Rural Residential (R-R), and construct a storm drainage pond on the lower property, adjacent to the quarry site. The proposed excavation would result in a 12-foot difference in elevation between the two properties. He is concerned that this difference in elevation could destabilize the area where he may propose a pond. The excavation will have a maximum final slope of 2:1, and the minimum setback of the excavation from property lines is 25 feet. The Community Development Department reviewed this issue and determined that the proposed excavation would not have a significant impact on the adjacent property relative to soil stability. Aesthetics Because the excavation site is located below the bluff, it does not lend itself to visual screening. However, the project does include continuous reclamation, which will reduce the amount of land that will be in excavation at any given time. The project is located approximately 1,000 feet from State Route 12188, and no screening is required between the State Route and the project. Noise The southeast portion of this project is located adjacent to vacant land designated Rural Residential (RIR) on the General Plan and zoned Rural Residential (R-R). Section 9-1025.9(b)(2) of the Development Title requires development projects to mitigate noise levels from these projects so that the resulting noise level does not exceed 65 dB Ldn at the outdoor activity area of a residential use. The outdoor activity areas for future lots in the Rural Residential property will likely begin at or near the top of the bluff, which is a minimum of 150 feet from the nearest excavation activity. The primary noise source for quarries is usually the processing plant. The processing plant for this site is located north of the Mokelumne River, more than 1500 feet from the residential area. The nearest noise sensitive receptor(residence) is located approximately 800 feet from the excavation site. The noise generated by the trucks and excavating equipment is not expected to have a significant impact on future residences. San Joaquin County PA-02-1821Reed Community Development Page 3