ARCHIVED REPORTS_2009 - Laserfiche WebLink

Home Browse Search

1.0 PURPOSE The purpose of vegetative cover is to protect the closure barrier layer from erosion. The purpose of this Vegetative Cover Maintenance Plan is to provide guidance to the landfill postclosure maintenance staff in the maintenance of the vegetation cover during the postclosure period. This Plan is prepared in accordance with Section 21090 (4)(D) of Title 27 of the California Code of Regulations (CCR). 2.0 BACKGROUND Harney Lane Sanitary Landfill (HLSL) is a closed, unlined Class III landfill located at 14750 E Harney Lane in Lodi, California. The landfill covers approximately 127 acres of which 112 acres were used for waste. The remaining area is comprised of access roads, storm water retention ponds, setbacks for environmental monitoring, and firebreaks. Lodi's climate is "semi-arid". The average precipitation near the landfill is 17.5 inches per year, occurring primarily in the months of November through March each year. Because the landfill is not irrigated, the surface vegetation becomes dormant in the dry months. In 1994, HLSL was certified closed in accordance with California Code of Regulations Title 14. Closure included placement of a minimum one-foot thick vegetative layer over the prescriptive barrier layer. This vegetative layer was hydroseeded with fertilizer at the time of closure. Postclosure land use includes open space and grazing. Due to the presence of the landfill gas system, grazing is contemplated for small animals (sheep and goats) only. The Local Enforcement Agency (Environmental Health Department) has required that the vegetation be mowed or grazed to facilitate inspection of the surface. Much of the landfill "top deck" surface was compacted, reseeded and fertilized in 2003. The vegetation appears healthy at the time of this writing, although fertilizer has not been applied since 2003. 3.0 VEGETATIVE COVER MAINTENANCE 3.1 INSPECTION The surface of the landfill will be inspected at least semi-annually, once concurrent with the pre-winterization inspection required by the Waste Discharge Requirements (WDRs), once after the annual rains have passed. In addition, the landfill will be inspected after significant rain events in accordance with HLSL's Monitoring and Reporting Program (MRP). Vegetation Maintenance Plan G-1 San Joaquin County Harney Lane Sanitary Landfill Department Of Public Works July 30,2009 Solid Waste Division