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California Regional eater Quality Control Board <br /> Central Valley Region <br /> Alan C.Lloyd Ph.D. �o <br /> Robert Schneider Chair COVE ° <br /> Secretaryfor Arnold Schwarzenegge, <br /> Environmental Protection Sacramento Main Office <br /> Internet Address: http://www.swrcb.ca.gov/—rwn;b5 �`"� <br /> 11020 Sun Center Drive,#200,Rancho Cordova,CA 95670-614, r <br /> Phone(916)464-3291-FAX(916)464-4780 �&VIROf KAENTHEALTH <br /> PERMITiSE'TRSCbruary 2005 <br /> Mr. Tom Chinchiolo Mr. Larry Stonebarger <br /> Chinchiolo Stemilt California Chinchiolo Stemilt California <br /> 4799 N. Jack Tone Road 4799 N. Jack Tone Road <br /> Stockton, CA 95215 Stockton, CA 95215 <br /> INADEQUATE REPORT, REPLACEMENT MONITORING WELL FOR MW-3, CHINCHIOL0 <br /> STEMILT CALIFORNL4, SAN JOAQUIN COUNTY <br /> Regional Board staff has reviewed the 16 February 2005 Replacement Monitoring Well for MW-3 <br /> (workplan)prepared by Neil O. Anderson and Associates. The report was submitted for replacement of <br /> Well MW-3, which is believed to have been constructed improperly allowing grout to enter the well. <br /> The installation of groundwater monitoring wells at the facility was required by the 26 August 2004 <br /> California Water Code Section 13267 Order. <br /> I have the following comments on the workplan: <br /> 1 The workplan does not adequately describe the construction of Well MW-3 to determine if it is a <br /> candidate for pressure grouting. Please submit a well construction detail for Well MW-3. <br /> 2 Please describe what techniques will be used to remove sediment from Well MW-3 prior to filling it <br /> with grout. <br /> 3 Use of "neat bentonite"as well grout is not acceptable. Please use neat cement or a neat <br /> cement/bentonite slurry with no more than five percent of bentonite by weight. <br /> 4 It is unclear if Well MW-3 has been surveyed. Please provide the survey location data. If the well <br /> has not been surveyed, describe how that will be accomplished. <br /> 5 The attached figure does not present groundwater elevations or elevation contours as stated in the <br /> workplan so evaluation of the proposed location of Well MW-5 is not possible. <br /> By 16 March 2005,please submit a revised workplan that addresses the items listed above. If you have <br /> any questions please telephone me at (916) 464-4616. <br /> TIMOTH R. O'BRIEN <br /> Waste Discharge to Land Unit <br /> cc: Margaret Lagorio, San Joaquin County Environmental Health Department, Stockton <br /> Jeffory J. Scharff, Esq., Sacramento <br /> David Welch,Neal O. Anderson and Associates, Lodi <br /> California Environmental Protection Agency <br /> W:\SufRebrien7\Sen loequin\Chinchiolo FmidChinchiolo 16 Feb OS.doc <br /> 0 Recycled Paper <br />