SITE INFORMATION AND CORRESPONDENCE

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Mr. Ben Hall • - 3 - • 1 July 2002 660 gallons or more, Musco must file a storage statement with the State Water Resources Control Board,prepare a Spill Prevention Countermeasure Plan,provide double containment for the AGTs, and regularly sample the storm water collected in the double containment structure prior to discharge. 4. Page 10, Description of Potential Pollutant Sources, Petroleum Products The SWPPP states that runoff from the parking lot is contained onsite, and any runoff from the equipment yard is discharged to the natural drainage. The SWPPP should explain how runoff from the parking lot is contained onsite and how runoff from the equipment yard is determined appropriate to be discharged to the natural drainage. 5. Page 10, Description of Potential Pollutant Sources, Cleaning Agents The SWPPP states that Musco uses cleaning agents such as ammonium chloride, phosphoric acid, and sodium hypochlorite; and these agents are washed down and discharged to the wastewater system. The SWPPP also indicates that wastewater is applied to land. The SWPPP needs to clarify the different waste streams generated at the site and the disposition of these waste streams. The SWPPP also needs to describe briefly the different waste treatment systems at the site. 6. Page 11, Description of Potential Pollutant Sources, Olive Receiving Area The SWPPP states that runoff from the receiving area does not enter the natural drainage during the harvest period. 'The SWPPP should explain where runoff goes. 7. Page 12, Description of Potential Pollutant Sources, Solid Waste The SWPPP states that runoff from the solid waste slab is conveyed to the northernmost land application area and is contained onsite. The SWPPP should explain how runoff is contained. 8. Page 12, Description of Potential Pollutant Sources, Soil Erosion The SWPPP states that three areas are subject to soil erosion and may discharge particulate matter to the natural drainage. The SWPPP should describe how these erodible areas will be stabilized to prevent or minimize the discharge of sediments to surface water or surface water drainages.