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' Second Quarter Groundwater Monitoring Report—May 2010 <br /> Sutter Home Winery <br /> ' Page 2 <br /> GROUNDWATER MONITORING NETWORK AND DATA REQUIREMENTS <br /> ' Quarterly monitoring of the 18 groundwater monitoring wells (GW-1 through GW-18) is required by the <br /> Monitoring and Reporting Program (MRP) due to shallow groundwater conditions at the Site. Three <br /> additional monitoring wells, DWS-1, DWS-2, and DWS-3, are sampled annually during the second quarter <br /> as required by the San Joaquin County Environmental Health Department (SJCEHD). Historic groundwater <br /> ' monitoring data is provided in Appendix B. Groundwater monitoring requirements are presented in Table 1, <br /> below. <br /> Groundwater monitoring wells GW-1 and GW-2 were originally installed to monitor groundwater quality <br /> up-gradient to Site facilities in the southeast and central portions of the property respectively; GW-2 is <br /> currently located down gradient from a new 25-acre LAA vineyard. Monitoring wells GW-3 and GW4 <br /> ' monitor the southern boundary of the Site as well as the stormwater detention basin. Monitoring wells GW-5 <br /> and GW-6 monitor groundwater quality down gradient of the original 15.5-acre LAA, and GW-7 is located <br /> downgradient of the old wastewater ponds (Ponds A and B). Monitoring well GW-8 monitors groundwater <br /> quality on the downgradient side of the new process water ponds. Monitoring wells GW-9, GW-11, and <br /> GW-12 monitor mid-field groundwater quality within the 67-acre LAA. Monitoring well GW-10 monitors <br /> groundwater quality on the up-gradient side of the new process water ponds, GW-13 monitors groundwater <br /> ' quality up-gradient of the LAAs, and GW-14 monitors groundwater quality downgradient of the 67-acre land <br /> application area and the new ponds. The four recently installed monitoring wells monitor groundwater <br /> quality along the northern periphery of the property (GW-15, GW-16, and GW-17) and downgradient from <br /> the residence's septic system(GW-18). <br /> Table 1: Groundwater Monitoring Requirements <br /> Constituent Units' Type of Sample Sampling Reporting yp p Fre uenc Fre uenc <br /> Depth to Groundwater 0.01 feet Measurement Quarterly Quarterly <br /> Groundwater Elevation 0.01 feet Calculated Quarterly Quarterly <br /> ' Gradient feet/feet Calculated Quarterly Quarterly <br /> Gradient Direction degrees Calculated Quarterly Quarterly <br /> H pH units Grab Quarterly I Quarterly <br /> ' Boron L Grab Quarterly Quarterly <br /> Chloride m /L Grab Quarterly Quarterly <br /> Iron m L Grab Quarterly Quarterly <br /> ' <br /> Manganese 11EVL Grab Quarterly Quarterly <br /> Sodium m Grab Quarterly Quarterly <br /> Total Nitrogen m Grab Quarterly Quarterly <br /> ' Nitrate as Nitrogen m Grab Quarterly Quarterly <br /> Ammonia as NH4 m Grab Quarterly Quarterly <br /> Bromoform Grab Quarterly Quarterly <br /> ' Bromodichloromethane Grab Quarterly Quarterly <br /> Chloroform Grab Quarterly Quarterl <br /> Dibromochloromethane µ Grab Quarterly Quarterly <br /> ' Total Kjeldahl Nitrogen m Grab Quarterly Quarterly <br /> Total Dissolved Solids m L Grab Quarterly Quarterly <br /> Fixed Dissolved Solids m Grab Quarterly Quarterly <br /> ' S ecific Conductance umbos/cm Grab Quarterly Quarterly <br /> mg/L=milligrams per liter µg/L=micrograms per liter umhos/cm=micromhos per centimeter <br /> ' A <br /> +i1� CONDOR <br />