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7. Contamination Issues with the Gilsonite Refinery Lands From considerable testing performed by the landowner and the Colorado Department of Health, Hazardous Waste Division, a number of contaminants are present on the FMM property. Soil tests have shown that petroleum hydrocarbons, benzene, arsenic are present in the soil above desirable levels in a few instances within the gravel permit area. Other metals and petroleum compounds are present but are not above levels of SRO (Soil Remediation Objectives). These SRO levels were de- termined by the CDOH Hazardous Waste Division. A plume of free product petroleum hydrocar- bons exists north of the permit area and could be drawn down to the permit area during pumping. In the event that any type of buried waste material is encountered during the extraction process, solid or liquid, the procedures outlined in the Waste Management Contingency Plan will be in ef- fect. The Colorado Department of Health has worked for years with the landowner, Fruita Market- ing and Management, in analyzing the contamination on the site and developing the plan to allow gravel mining based on the levels of risk found, knowing that the gravel mining will require pump- ing of water from the pit. The Plan calls for detailed testing procedures in addition to specific pro- cedures if any contamination is found. If any solid waste in soil is encountered during testing or operation, the following procedures will be implemented: 1. All excavation activities will cease in the area of the discovered waste. Z. Site personnel will notify Elam Construction, Ines. Health and Safety Officer and Elam's certi- fied Hazardous Materials Managet (HMM). CDOH Hazardous Waste Division, DMG and Mesa County Health Depaztment will be immediately contacted. 3. Upon investigation of the solid waste, various options will be considered such as: a) Cover the solid waste and continue extraction activities outside of the area or b) Remove and dispose of the waste at an approved solid waste land fill site. If water contamination is encountered and water tested at the sediment pond could discharge above levels of contamination prescribed in the Combined Process Water and Storm Water Discharge Per- mit as well as the Waste Management Contingency Plan, pumping from the pit will stop and treat- ment options for the water will be discussed with input from the agencies listed above. Gilsonite Pit 10/02 13