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Musco Olive Products Site Ins ction 2 U 2 November 2001 stormwater falling on the facility is not metered at all. Ben Hall was informed that adequate flow metering would be required at the facility. 5. Ben Hall stated that high and low strength wastewater are mixed in the cannery and the adjacent pitting machine/floatation tank/sorting table. He recognized the need to separate the flows but had no plan to accomplish the separation. 6. Ben Hall stated the Class II ponds can evaporate 12 Mgal of high strength wastewater per year. He did not have an estimate of how much high strength wastewater is generated per year. When Regional Board staff raised the suggestion that Musco needs additional Class II ponds, Ben Hall stated the warehouse was constructed over the location of the planned third evaporation pond and that there wasn't room for an additional Class II pond now. 7. Waste lye solutions,pit floatation brine, and the highest TDS rinse water are reportedly always discharged to the Class II ponds. Retort cooling water, wash waters (including weak lye solutions), acetic acid storage solutions, pitting machine wastewater, and cannery floor wastewater (despite high TDS concentration), are always sent to the land application system. It is apparent, based on the increasing DIS concentrations in the land application area wastewater, that inappropriate mixing of high strength wastewater with the low strength wastewater is occurring. Source control efforts have been lacking. 8. Lye is reclaimed in above ground stainless steel tanks located near the one million gallon storage pond. Adding sodium hydroxide to the tank to increase the concentration reclaims most lye. Ben Hall stated there is no need to use virgin or fresh lye on premium grade olives. When lye is determined to be too contaminated for further use, it is discharged to the Class II ponds. 9. After going through the mechanical pitter, the olives float through a brine solution. Olives that still have pits sink,pitted olives float. Considerable leakage occurs at the pitter and floatation tank. The pitter uses relatively fresh water; however, after coming out of the floatation tank the olives are coated with brine. Much of the brine is caught using pans installed under the conveyer belt that transports the pitted olives to the manual sorting table. The brine caught by the pans is presumably recycled into the floatation tank. 10. The boiler feed water is treated with an ion exchange column. The ion exchange column is regenerated in place; regeneration brine is discharged to the Class II ponds. 11. Ben Hall stated the footprint of the facility has been established but additional processing tanks (lye bath tanks) are available and may be installed. Wastewater flow may exceed the 850,000 gpd that was requested in the year 2000 Report of Waste Discharge. Ben Hall estimated 600,000 to 800,000 gpd of wastewater is presently generated. The expansion of the facility will result in wastewater flows of approximately 1,000,000 gpd. 12. Field No. 2 (the area where the proposed storage pond is planned)has not been irrigated all summer pending construction of the wastewater storage pond. The irrigation pipe has been moved to other areas. However, at this time it appears the storage pond will not be built prior to the winter rains. 13. Ben Hall stated that computer controls have been added to the upper application area irrigation system and that this has improved the application and greatly reduced the generation of tailwater. However, tailwater was observed flowing from the upper land application area onto Field No. 2, despite the upper application area not being irrigated for a few days and a lack of rainfall. GV'roja�tea\SitcsSMnuaVnepal10201,Coc