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North County Recycling Center and Sanitary Landfill Storm Water Pollution Prevention Plan Page 20 Locations Materials or Wastes Produced, Stored, or Used Pollution Prevention Procedures Containment Green waste area Organic material and dust, iron oxide containing dyes / colorants, trash, sediment, oils, grease, and diesel and gasoline fuel. • . Encircle the stockpiled dyed wood mulch with Filtrexx EnviroSoxx compost socks. • Sweep up wood mulch before anticipated storm events and after windy days. • Clean up any spilled dye material on the paved surfaces near the mixing equipment • Place plastic sheeting on the ground when performing dye mixing operations so that spills can be easily cleaned up. • Use a street sweeper with PM10 dust capture capabilities on a weekly basis during the rainy season on paved surfaces around the green waste area and on paved roadways. • When not in use, place totes and drums of dyes / colorants under cover and on spill containment pallets or within a covered bin or building. • Cover and berm stockpiled dyed wood mulch and equipment coated with the dye with Filtrexx EnviroSoxx. 6.1.3 Dust and Particulate Generating Activities Dust-generating activities at North County Landfill consist of the tracking and raising of airborne dust from vehicle and equipment usage and from windblown landfill sediment and cover. All earthwork will be done in accordance with the Valley Air District’s Regulation VIII. Visible dust emissions must be maintained below 20% opacity. Control measures will include the following: • Limiting vehicular traffic routes to designated paved roads. • Wetting down necessary unloading and processing activities. • Wetting and/or stabilizing by other acceptable means exposed soil surfaces and stockpiles. • Limiting vehicle speeds to 15 mph or less. • Ceasing maintenance or repair work during high wind conditions. • Implementing carry out and track out control measures. • Requiring a dust control plan if more than 5 acres of soil is disturbed or the relocation of more than 2,500 cubic yards per day of materials on at least three days. For more information, refer to the Valley Air District’s Regulation VIII website at: www.valleyair.org/busind/comply/PM10/compliance_PM10.htm 6.1.4 Significant Spills and Leaks In 2003, a spill of approximately 15-20 gallons of diesel fuel from the 6,000-gallon equipment yard tank occurred due to operator error by a County vendor. The vendor’s delivery person Figure 12 – Water trucks and kick-broom sweepers are used for dust control and to clean impervious surfaces