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SingokoTruckQg <br /> Page 2. <br /> 0 VVeUm that have laboratory data from the last sampling event that report non-detectable <br /> concentrations of contaminants of concern and with acceptable laboratory detection <br /> |imnitm, may be destroyed bvpressure grouting from the bottom upward, while leaving the <br /> well casing in place. The Lop three feet or more of the well ehm|| be drilled out with an <br /> auger that is at least one foot larger than the auger originally utilized to install the well, <br /> and the soil around the cut off casing removed to a depth of an additional six inches <br /> below the new 'top' mfthe cutoff casing. The grout sealant shall spill out ofthe top ofthe <br /> well casing to form a nnushnownl cap oe@|, with at least 12 inches of neat cement grout <br /> poured Ginches above and Ginches below the top ofthe cut off casing. <br /> The last monitoring event for K8VV-1 and N1VV-2 reported results of non-detect for <br /> petroleum hydrocarbons. These wells may bmdestroyed bvpressure grouting from the <br /> bottom upward, xvh\|e leaving the well casing in place. <br /> m All groundwater displaced tothe surface during grout installation shall bepumped out cf <br /> the excavation to allow for EHC> inspection and verification that the well was property <br /> destroyed. Contaminated groundwater pumped out of the excavation mh8U be <br /> containerized for proper disposal. <br /> The Well Contractor shall submit the completed EHD Well and Boring Permit Application, along <br /> with the correct permit fees of $125 for each well and the $375 Inspection /\utivhv fee to the <br /> EMO' /\ review of the site records indicates that currently three monitoring xveUm were installed. <br /> /\ fee of $750 (3 MWx $125 +$375\ will be required for the well destruction permit. The EH[� <br /> willwillissue the —|| destruction permit if the destruction methods noted on the permit meet <br /> with the requirements specified within this letter. <br /> If the nneUXs are not properly destroyed under EHD permit and inspection by February 1, <br /> 2014, the EH0} and the CVRWQCB will begin enforcement activity for having abandoned <br /> wells at the site. <br /> f� this and. any further <br /> Please be that . <br /> ~^`~'~ <br /> enforoement activity required by the Enu to obtain the documents oractions the EH[] has <br /> requested within this letter. <br /> |fyou have any questions, please contact Adrienne Ellsaesser at(209)468-0343 or by email at <br /> /\dr|eDneB|nammsar, REHE| <br /> Program Coordinator <br /> ec: Mr. Jonneo L L. Barton, P(3, California Regional VVohar Quality Control Board Central, <br /> ]inn.borhun@wahorboandn.ca.gov <br /> David |oay. Deputy District Attorney, offices pfthe District Attorney San Joaquin County, <br />