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Musco Family Olive Company - 4 - 12 December 2006 i the western boundary and well MW-15 is located at the base of Field 55 West, adjacent to the Reservoir. Field 55 has been utilized as a spray application field since 1991. Field 95 is the largest spray field in the land application system. Field 95 is located in the upland area south of the Reservoir and is also characterized as a steep sided hillside. Monitoring wells MW-1 (up-gradient) and MW-13 (down-gradient) are located in Field 95. Field 95 has been utilized as a spray application field since 1997. South Ridge (SR) East/West spray field is located across the mid-slope and lowlands area south of the Musco processing facility and makes up the southern boundary of the site. The SR East/West field is also a topographic high and is characterized by steep sided hillsides. . Well MW-6 is located near the southern property boundary and well MW-9 is located north of SR East/West. SR has been utilized as a spray application field since 1994. Check 1-4 is located in the lowland area and makes up the southeastern property boundary of the site. It is characterized as flat, fallow land that is no longer-used for spray application of wastewater. Check 1-4 bounds the adjacent property to the South where the Hansen Well is located. Check 1-4 was utilized for spray application since 1994. Evap North, South, East, and West are located in the lowland area adjacent to the Title 27 surface impoundments. These fields are characterized as flat. Evap north and Evap east are no longer used for spray irrigation. Evap north contains the Musco facility septic system. These fields have been utilized for spray application since 2000. Spur North and North 18 are located north of the Musco facility and are characterized as flat to gently rolling fields. Park West and Pasture are located near the western boundary of the Musco facility. These fields have been utilized for spray application since 2000. 84 Million Gallon Reservoir The 84 million gallon Reservoir began impounding wastewater in January 2003. Musco proposed to install a 2-foot-thick liner system consisting of native clay soils to achieve a permeability of equal to or less than 10-6 cm/s. The liner system and its construction have not been certified by a registered professional. The spillway elevation of the Reservoir is 352 feet above mean sea level (amsl). The water surface area is 15.9 acres at normal operating capacity. Reservoir water is characterized by data in Table 3. Table 3 Reservoir Analytical Results Date TDS Na Cl HCO3 (mg/L) (mg/L) (mg/L) LM-9/1) 06-23-04 3,900 1,100 380 2,700 05-06' 3,253 759 310 NA 1. Average concentrations of four sample events collected during May 2006. NA = Not Analyzed.