Laserfiche WebLink
uali �ntrol Board 5 <br /> California Regional Water Q ty <br /> Central Valley Region <br /> Robert Schneider,Chair <br /> Arnold Schwarzenegger <br /> Alan C.Lloyd Ph.D. Governor <br /> Agency Secretary Sacramento Main Office <br /> 11020 Sun Center Drive,#200,Rancho Cordova,CA 95670-6114 <br /> Phone(916)464-3291•FAX(916)464-4780 <br /> http://www.waierboards.ca.gov/centralvalley <br /> 30 December 2005 <br /> Randall Lange <br /> LangeTwins Wine Estate <br /> 1298 W. Jahant Road <br /> Acampo, CA 95220 <br /> CONDITIONAL APPROVAL,MONITORING WELL INSTALLATION WORKPLAN, <br /> LANGETWINS WINERY,ACAMPO, SAN JOA QUIN COUNTY <br /> I have reviewed the Monitoring Well Installation Workplan,prepared by Neil O.Anderson and <br /> Associates(NOA), dated 17 October 2005. The plan was prepared to characterize groundwater quality <br /> prior to waste application at a planned new winery. The Workplan seeks comment on the investigation <br /> but because the land application areas are not clearly identified, staff cannot comment on the adequacy <br /> of the investigation at this time. Please address the following items: <br /> o There is no clearly upgradient well based on a groundwater flow direction to the east as described <br /> in the Workplan. Wells MW-1 and MW-2 appear to be located within or downgradient of the <br /> .identified land application area. Consider moving one or both wells to allow one well to be located <br /> upgradient of the land application area, and the other well to be in, or downgradient of the land <br /> application area. <br /> o Well MW-3 appears to be positioned to monitor groundwater downgradient of the future ponds. <br /> Please locate the well within 50-feet of the future pond location. <br /> o As presented,the wells provide adequate triangulation to determine the groundwater flow <br /> direction. When revising the groundwater monitoring wells please keep the triangulation <br /> requirement in mind. <br /> The workplan is approved on the condition that the above comments are addressed in an addendum letter <br /> to be submitted prior to installation of the wells. If you have any questions on this conditional approval, <br /> please telephone me at(916) 464-4616. <br /> TIMOTHY ".O'BRIEN <br /> Waste Discharge to Land Unit <br /> cc: Margaret Lagorio, San Joaquin County Environmental Health Department, Stockton <br /> James Robinson, P.G.,Neil O. Anderson Associates,Lodi <br /> California Environmental Protection Agency <br /> Da Recycled Paper <br /> )VAStaff\0briennSan JoaquinEmgeTwins Winer}Lange 14 Dec 05.doc <br />