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Hazardous Materials Management As required by the Colorado Department of Public Health and Environment's Water Quality Control Division (CDPHE-WOCD), the Heit property is subject to a Stormwater Mangement Plan (SWMP) as part of the NPDES permitting process. The SWMP addresses the hazardous materials stored on site and the measures taken to prevent potential impacts to groundwater and surface water in the event of a major storm or spill. Additionally, the SWMP sets up the notification process to be followed in the event of a hazardous materials spill. It also establishes the specific Best Management Practices (BMPs) to be implemented on site. Employee training/education in the routine maintenance and inspection of BMPs is also discussed. As a general prevention practice, the site will be graded to contain all surface flows on-site in the event of a major storm. In the event of a hazardous materials spill, the emergency coordinator will follow the procedure outlined in the "Emergency Spill Response Procedure" section below. Hazardous Materials Stored On-Site Hazardous materials to be stored on-site include diesel fuel, AC10 oil, lubricants, coolants and motor oil. Diesel fuel will be stored in 10,000-gallon, double-walled, above- ground storage tanks. AC10 oil will be stored in 5, 000- to 10,000-gallon, double-walled, above-ground storage tanks. Lubricants, coolants and motor oil will be stored in 55- gallon, double-walled drums. Since all above-ground storage tanks are double-walled and UL142 or greater, secondary containment measures such as berms are not necessary. Essentially, if the inner wall fails, the outer wall will contain the materials within the tank. Facility Operations Description Daily operations with regard to hazardous materials includes the following: • Diesel fuel, motor oil and coolants used in equipment maintenance • AC10 oil used in asphalt production; and • Lubricants used to keep plants running smoothly. Emergencv Spill Response Procedure In the case of a hazardous materials spill on-site, the emergency coordinator (coordinator) will be responsible for following the emergency-response procedure. The coordinator will activate facility alarms, notify personnel and evacuate staff to a designated location. Whenever there is a spill, the coordinator will identify the source, amount and extent of the hazardous material. At the same time, the coordinator will assess possible hazards to human health and the environment (by observation). If the coordinator determines that there is risk to human health or the environment, all applicable agencies will be notified. The emergency coordinator maintains an Emergency Notification List, which contains the names and phone numbers of the designated personnel within the company in addition to local and national emergency response agencies, a local clean-up contractor and remediation equipment supplier. The coordinator will also notify all property owners downstream of the spill. Within 15 days following the incident, a report containing all pertinent information will be submitted to the appropriate agency.