ORD 0520 - Laserfiche WebLink

ARTICLE 9. Q Rock, Sand, and Gravel Extracti.on District or gravel extraction or processing as a condition of granting a use permit. a. Landscaped buffers planted and maintained as prescribed in Sec. 2.111.9, (Landscaping of Buffers in Q District), shall be provided adjeining the boundary of a Q district. Where the Q district adjoins or is across the street from an R, O, C-N, C-C, C-R, or PUD district, the buffer shall have an average depth of 200 feet and a minimum depth of 150 feet. Where the Q district adjoins or is across a street from a C-S or an I district, the buffer shall have a minimum depth of 50 feet. Where the Q dis- trict adjoins an A or an S district, a strip having an average depth of 200 feet and a minimum depth ef 150 feet shall be held for use as a buffer, but need not be improved until the zoning map is amended to reclassify the property adjoining or across the street, at which time the buffer shall be improved as re- quired by this section. The depth of a buffer adjoining or across the street from a P district shall be determined by the Commission. Where the Q district adjoins a freeway, railroad, arroyo, or flood control channel, the minimum depth of the buf- fer shall be 50 feet. Buffers shall be improved and planted suf- ficiently in advance of nearby extraction operations to allow the trees and other plant materials te attain sufficient height and mass to provide effective buffering. b. Final cut slopes in any pit or quarry shall not exceed the nor- mai angle of repose of the excavated materials, and shall not exceed one foot horizontal to one foot vertical. c. Temporary cut slopes steeper than one foet horizontal to one foot vertical shall be no closer to a property line than 25 feet plus the vertical depth of the cut, shall be no closer to a public street right of way than 50 feet plus the vertical depth of the cut, and shalI be no closer to a stream or cha,nnel than 100 feet plus the vertical depth of the cut. d. The excavation of a pit or quarry shall be conducted in such a manner as to prevent accumulation of pollufed water or natural seapage to the maximum extent possible but not precluding the use of pits for recharge purposes. e. Dikes nnd other barriers and drainage structures shall be pro- vided where necessary to prevent silting of drainage channels or storm drains in the area surrounding the excavation. f. Where required by the Commission, final cut slopes shall be treated to prevent erosion~ topsoil shall be replaced on such slopes to support vegetation, and suitable ground cover shall be planted and maintained for a peried sufficient to provide vegetation of a density and ground-holding capacity that will prevent erosion. g. 1~Iaterial used for refilling ~ pit or quarry, including overburden removed from elsewhere on the site, shall be of a quality deter- mined suitable to prevent contamination of the ground water either during operations or upon completion or termination of operations. h. Quarry or pit excavations that penetrate near or into a war bearing stratum shall be conducted in such a manner that su stratum will not be subject to pollution or contamination eith during operations or subsequent t~ termination. The Corem sion may prescribe the maximum depth of a pit or quarry relation to the depth of any aquifer described and defined publications of the State Department of Water Resources. i: Fencing shall be provided and maintained surrounding all are being excavated to prevent unauthorized access in accord wJ the requirements and specifications of the Public Works r partment. Such fencing shall be located no closer than 10 fc from the top edge of a proposed cut slope. j. Ail reasonable control measures shall be employed to redu dust in the processing and transportation operations. Haula roads shall be paved, oiled, or watered, an.d shall be maintain in a dust-tree condition. Access roads shall have pavement least 24 feet wide and shall extend from tbe public street the permanent public scale but not less than 500 feet. k. Vehicles hauling excavated material shall be loaded in such manner as to prevent spilling the material while in transit. T Commission may designate which public streets may be us in hauling excavated material, and may prohibit the use of a, other street. 1. No explosives shall be used except as expressly permitted the Commission. m. Adequate provlsiou shall be made for protection of pits a quarries from overflow from adjacent streams by the eonstr~ t~on of levees and other devices to prevent ffo~ding. No obstr~ tio~ shall be placed in any stream unless authorized by the A meda County Flood Control and Water Conservation District. n. Except during emergencies, or when equipment repairs mi be made, all extractive or processing operations shall be c~ ducted only during the hours approved by the Commission.. Sec. 9.105. Off. Street Parking. Off-Street parking facilities shall be provided for each use as p scribed in Article 15, (Off-Street Parking Facilities). Sec. 9.106. Off-Street Loading. Off-street loading facilities shall be provided for each use as p scribed in Article 16, (Off-Street Loading Facilities). Sec. 9.107. Signs. No sign, out door advertising structure, or display of any charac shall be permitted except as prescribed in Article 17, (Sig~s). ,Sec. 9.108. Design Review. Ail conditional uses shall be subject to design review as prescri~ in Article 18, (Design Review). Applicants are advised to con with the Zoning Administrator before preparing detailed plnns.