COMPLIANCE INFO_1993-1996 - Laserfiche WebLink

Home Browse Search

WASTE DISCHARGE REQUIREMENTS -7- FRENCH CAMP LANDFILL CITY OF STOCKTON SAN JOAQUIN COUNTY 5. Landfill leachate shall be discharged by a Board approved method. 6. During the rainy season, when precipitation can be expected, a minimum one-foot thickness of low permeability cover shall be maintained over all but the active disposal area of the landfill. The active disposal area shall be confined to the smallest area practicable based on the anticipated quantity of waste discharge and other waste management facility operations. 7. Methane and other landfill gases shall be adequately vented, removed from the landfill units, or otherwise controlled to prevent the danger of explosion, adverse health effects, nuisance conditions, or the impairment of beneficial uses of water due to migration through the vadose (unsaturated) zone. Protection from Storm Events 8. Closure construction shall be accomplished in such a manner so as to prevent inundation or washout due to floods with a 100-year return period. Landfill- related containment structures shall be constructed and maintained to prevent, to the greatest extent possible, ponding, infiltration, inundation, erosion, slope failure, washout, and overtopping under 100-year, 24-hour precipitation conditions. Surface drainage from tributary areas and internal site drainage from , surface or subsurface sources shall not contact or percolate through wastes. 9. Annually, prior to the anticipated rainy season but no later than 1 November, any necessary erosion control measures shall be implemented, and any necessary construction, maintenance, or repairs of precipitation and drainage control facilities shall be completed to prevent erosion or flooding of the facility and to prevent surface drainage from contacting or percolating through wastes. D. Closure Specifications: Landfill Closure 1. Landfill closure shall be under the direct supervision of a California registered civil engineer or certified engineering geologist. 2. The closed landfill shall be provided with at least two permanent monuments, installed by a licensed land surveyor, from which the location and elevation of all wastes, containment structures, and monitoring facilities can be determined throughout the post-closure maintenance period.