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CLEANUP AND ABATEMENT ORD. t NO. f 2 <br /> THE WINE GROUP, INC. <br /> FRANZIA WINERY <br /> SAN JOAQUIN COUNTY <br /> DRAFT <br /> 9. All process area stormwater and facility wastewater drains to two sumps, from which it is pumped <br /> to the vineyards for disposal. The waste is treated passively by the land and/or taken up by the <br /> vines. <br /> 10. From 1935 through 1995,process wastewater was discharged to a series of percolation/ <br /> evaporation (P/E)ponds located south of the paved portion of the facility. Since 1995, the former <br /> P/E pond area has been converted into an emergency discharge reservoir. <br /> 11. In 1995, the Discharger began discharging the wastewater directly to the vineyard. Wastewater is <br /> currently applied in an alternating fashion to a network of 3-foot wide by 2-foot deep furrows that <br /> are plowed between the rows of vines. Between applications, the furrows are allowed to dry and <br /> are then disked and reconstructed prior to the next wastewater application. <br /> 12. During the irrigation season, the volume of wastewater applied to the vineyard is typically <br /> augmented with well water in order to meet the irrigation demands. <br /> SOIL AND GROUNDWATER CONDITIONS <br /> 13. Site topography is flat and level, and site soils are predominantly sandy loams. Soil permeabilities <br /> range from moderately-rapid to rapid,with rates of water intake ranging from 1.5 inches to 3.0 <br /> inches per hour. <br /> 14. Three groundwater monitoring wells(MW-1, MW-2, and MW-3) were constructed on the site. <br /> The total depth of MW-1 and MW-2 is reportedly approximately 80 feet below ground surface <br /> (bgs), with screened intervals between 50 and 80 feet bgs. The total depth of MW-3 is <br /> approximately 56 feet bgs, with a screened interval between 35.5 and 55.5 feet bgs <br /> 15. The first encountered groundwater below the site ranges from approximately 40 to 45 feet bgs. <br /> Groundwater flow direction is generally to the northwest, with an average gradient ranging from <br /> 0.001 to 0.005 ft/ft. MW-1 and MW-3 are considered to be hydraulically downgradient of the <br /> process water land application area and MW-2 is considered to be the most upgradient of the <br /> wells, although,because it is within the land application area, it may not be completely <br /> representative of true background conditions. <br /> 16. The groundwater monitoring data indicate that concentrations of dissolved solids often associated <br /> with winery wastewater are elevated in the two downgradient monitoring wells as compared to <br /> concentrations in the background monitoring well. The average electrical conductivity, total <br /> dissolved solids, fixed dissolved solids, sodium,magnesium, chloride, and sulfide concentrations <br /> in the downgradient wells range from two to fifteen times higher than the background well. The <br /> data also indicate that nitrate concentrations in MW-3 are approximately eight times background <br /> concentrations and five times higher than drinking water standards. <br /> ENFORCEMENT HISTORY <br /> 17. On 15 September 2003, Regional Board staff issued a Notice of Violation (NOV) to The Wine <br /> Group for violation of the Groundwater Limitations contained in WDRs Order No. 95-097. The <br />