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Musco Family Olive Company - 14 - 12 December 2006 and likely downgradient of this well. No other wells are located down-gradient to monitor water quality north-northeast of well MW-15. Well MW-16 Well MW-16 is below the Reservoir in the mid-gradient area. Like wells MW-13 through MW-15, TDS, chloride, and sodium are elevated either above the interim standards or Regional Well when compared. Although the trend plot suggests slightly variable or stable concentrations of chloride and sodium, the concentrations were elevated at the start of sampling. TDS concentrations show a sharp increase following the impoundment of wastewater in the Reservoir as shown in the Times Series plot. Initial TDS concentration was 2,300 mg/L in November 2002. TDS concentration measured in June 2006 was 2,700 mg/L. Well MW-16 is similar to well MW-15 where bicarbonate has significantly increased over time. The initial bicarbonate concentration was measured at 710 mg/L in November 2002. Bicarbonate was detected in well MW-16 at a concentration of 1,500 mg/L in June 2006. ' It is apparent from the time series plot the Reservoir is leaking wastewater containing elevated concentrations of bicarbonate and impacting down-gradient groundwater. Well MW-3 Well MW-3 is down-gradient of well MW-16 in the mid-slope area. TDS, chloride, and sodium concentrations exceed both the interim standards and the average concentrations detected in the Regional Well. As with the other wells discussed above, beginning concentrations of chloride and sodium are elevated but appear to be stable over time. However, like well MW-16, TDS and bicarbonate concentrations have been increasing as a result of groundwater impacts due to the leaking Reservoir. As with wells MW-15 and MW-16 there is no other apparent source of bicarbonate in groundwater that could be contributing to the elevated concentrations seen in well MW-3. Well MW-5 Well MW-5 is in the mid-slope area and like the other wells discussed above has elevated TDS, chloride, and sodium. Concentrations of these CDCs exceed both the interim standards and the average concentrations detected in the Regional Well. Well MW-5 is similar to wells MW-3 and MW-16 in that TDS and bicarbonate has been increasing over time. When reviewing the time series plot, TDS and bicarbonate has increased steadily following the impoundment of wastewater in the Reservoir. However, impacted groundwater in the vicinity of well MW-5 is also being affected by wastewater leaking from the 1-million gallon pond. Well MW-5 is located above the drainage swale but below the 1-million gallon pond, which provides a significant hydraulic head. As shown in Table 1, the 1-million gallon pond receives high strength wastewater that contains elevated concentrations of CDCs including bicarbonate. Wells MW-10, MW-11, and W-2 Wells MW-10, MW-11, and W-2 are dry wells. Consequently the limited data set was not graphed. However, upon review of the analytical results (Table 8) from each well for the last four available sampling events it is apparent that TDS, chloride, and sodium were detected at concentration levels above the interim standards and the Regional Well. Well MW-11 is