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Spingolo Trudking <br /> .Page 2. <br /> Wells'that have laboratory data firom,fife last'samp i.ng°event that report non4detectable <br /> concentrations of :contaminants of concern Wand with acceptable laboratory detection <br /> limits, 'May be,destroyed by pressure grouting°from the bottom upward, while leaving the <br /> well casing in.place. The.top three feet or more.of ttie.Well -shall be drilled out with an <br /> auger that'is at least one, foot,la than the stager originally utili ed to install the well,. <br /> and the soil around the cut off casing removed,to a depfh of an additional six inches <br /> below the new'top' of the cutoff casing The grout sealant shall spill.out of the top of the- <br /> casing to form,a mushroom cap seal, with at least 12 inches of neat cernent grout <br /> poured 6 inches above and 6 inches below the top of the cut off casing; <br /> the last monitoring event for MW-1 and: Mv11-2 reported results of non=detect for <br /> peteoleurn hydrocarbons. These wells may be destroyed: by pressure grouting from the <br /> bottom .upward; while leaving the well casing"inplace. <br /> All groundwater displaced to the surface during grout installation shall:be pumped out:of <br /> the excavation: to allow :for EHb inspection and verification that the well was properly <br /> destroyed. Contaminated groundwater pui roped_ out, of, 'the excavation shall be <br /> containerizod for proper disposal;:, ' <br /> The Well :Contractor'shall,submit.the completed EHD Well.and 13oring%Poem it Applicafiion, along <br /> With thoi correct ,permit fees of $125 foreach,well and the $375 Inspection Activity fee to the <br /> EHD. A review of the site records indicates that currently three monitoring wells were.installed: <br /> A fee of $75.4 {3 MW x $125 4$375) vuill be required for the well destruction permit: The EHD. <br /> Will issue,the well destruction permit,only if the destruction,.methods noted ern the permit meet <br /> with the requirements:specified within this letter.. <br /> If`the wells are not properly destroyed under tkb 0erivlit and h spectloit' by February 1, <br /> 2014, the EHD and the,QVRWQCB will begin enforcement acfivity for.having,abandondd <br /> wells at the;sit;ia. <br /> Please be aware that;you are being billed ata rate of $'125 per hour for this and any farther <br /> enforcement activity ;required,by the EMD to obtain the documents or actions the EHD has <br /> requested within this letter: <br /> If you have any questions, please:contact Adrienne Ellsaesser at (209) 468-0343 or by email at <br /> aellsaesser(aDsicehd:com, <br /> Adrienne Ellsaesser, RENS <br /> Program Coordinator <br /> ec: Mr. James. L. L. Barton, pQ,. California. Regional vVgter Quality Control Board Central;, <br /> jim.barton@waterboards.ca.gov <br /> David'.Irby, Deputy'District Attorney, Office"s of the District.Attor't .ey San:J. qu:. County;, <br /> David:.lrey@sjcda org <br />