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Sent- By: RWCCB; 2553439; Sep-6-(Zn 9:46AM; Page 4/4 <br /> �i <br /> Ms. Jessica Hardy <br /> California Regional Water Quality Control Board <br /> August 25,2000 <br /> Page 2 <br /> Response - LFC agrees. In accordance with Section 6-3-6 of the San Joaquin County <br /> Environmental Health Well Standards,prior to grouting, a hole at least one foot <br /> larger in diameter than the original boring will be excavated to a depth of three <br /> feet below grade. The well casing will be cut at this depth and removed - Grout <br /> used to seal the well will be allowed to fill the excavation to a depth of one foot. <br /> After the grout hardens adequately,the excavation will be backfilled with clean, <br /> inert soil material and covered with asphalt or concrete to match surrounding <br /> surface materials. <br /> Comment 4- 'rhe work plan states,^The sealant desi},m will consider compatibility of the abandoned well <br /> location with future site use." The sealant design should primarily ensure that the well is properly <br /> and completely scaled- <br /> Response - LFC agrees. The sealant will consist of cement grout mixed with five percent <br /> bentonite powder at a rate of ten gallons of water per one 94 lb. sack of cement. <br /> This mixture design should be of adequately low viscosity to permeate the filter <br /> pack. <br /> Comment S - Well abandonment shall also be in accordance with San Joaquin County Environmental Health <br /> regulations. <br /> Response - All well abandonment procedures will be performed in accordance with the San <br /> Joaquin County Environmental Health Well Standards(undated), Section 6, <br /> Destruction of Wells. A permit for well destruction will be obtained prior to <br /> initiating any abandonment work. <br /> LPC appreciates the importance of site remediation and will schedule abandonment as soon as <br /> possible. We will keep you appraised of scheduling, should you wish to observe the <br /> abandonments. If you have any questions or require additional information,please contact me at <br /> (303) 426-7501. <br /> Sincerely <br /> H§1GE9T,RANS <br /> Brendan Shine, P.E. <br /> Senior Engineer <br /> cc: Mr. Robert Garcia, Leprino Foods Company, Denver,CO <br /> Mr. Kelly Stock, Leprino Foods Company, Tracy, CA <br /> Q\PROJECTS\S.EI'RINO\MW Apmdnnmangr�n� .e w o,wumas.wpd <br /> HSI GEOTRANS <br />