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} <br /> .California Regional Water Quality Control Board <br /> Central Valley Region <br /> Robert Schneider,Chair <br /> Winston H.Hickox Gray-Davis <br /> Secretaryfor Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swreb.ca.gov/--rwgcb5 7 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 -� <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 11 December 2001 <br /> Robert Torres <br /> Trinchero Family Estates <br /> P.O. Box 248 <br /> St. Helena, CA 94574 <br /> CONDITIONAL APPROVAL OF GROUNDWATER MONITORING WORKPLAN, SUTTER <br /> HOME WINERY,LODI, SAN JOA QUIN COUNTY <br /> I have reviewed the "Monitoring Well Installation and Quarterly Groundwater Monitoring Workplan, <br /> Sutter Home Winery, " prepared by Condor Earth Technologies, Inc., dated 14 November 2001. The <br /> plan was prepared in response to a 4 October 2001 Regional Board Order for Technical Reports. After <br /> reviewing the workplan, I have the following comments: <br /> • While drilling the wells, please collect soil samples at a minimum of five-foot intervals for lithologic <br /> description. <br /> • Based on the information on flow direction presented in the workplan, the well locations are <br /> generally acceptable with the following comments: <br /> + The well located at the existing wastewater storage ponds is approximately.125 feet west of the <br /> ponds it will monitor. Please move the monitoring well closer to the ponds. Location within 50 <br /> �{ feet of the ponds is acceptable. <br /> + The well located at the southwest corner of the property boundary may not monitor the land <br /> application area based on the cropping plan diagram contained in Section 8 of the RWD. Please , <br /> consider locating the well north of the proposed location. <br /> • Please add an additional well that will monitor the groundwater downgradient of the stormwater <br /> pond. Because of the wastewater/stormwater diversion valve, which could allow wastewater to <br /> be incorrectly discharged to the stormwater pond, monitoring groundwater quality downgradient, <br /> of the stormwater pond and upgradient of land application areas is required. (As presently <br /> proposed,the well located at the southwest corner of the property would likely monitor <br /> downgradient of both the stormwater pond and the land application area). <br /> �- • Section 13.10.8 of the San Joaquin County Environmental Health Department (SJCEHD) Well <br /> Standards recommends surging the filter pack prior to installation of the transition seal. If borehole <br /> conditions allow, please perform that task. <br /> L + Groundwater monitoring requirements have not yet been formalized in Waste Discharge <br />[ Requirements (WDRs); however, wineries typically are required to monitor the following parameters <br /> �. California Environmental Protection Agency <br /> tea Recycled Paper <br /> The energy challenge facing California is real. Every Californian needs to take immediate action to reduce energy consumption. <br /> For a list of simple ways you can reduce demand and cut your energy costs,see our Web-site at http://www.swreb.ca.gov/rwgcb5 y <br />