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uV�1 raper company <br /> San Joaquin County � -2 - <br /> February 21, 20,96 <br /> 2006,provide the requested information concerning the disposition of well OB-5 and a <br /> plan to properly destroy and replace this well. work <br /> I Field data sheets provided in the monitoring reports are overly simplified. Purge quantities of <br /> well water and disposition of the purge water are inadequately documented. The Monitoring <br /> Reports indicate that purge water from the monitoring wells are either discharged to ground <br /> surface or to Nestle's treatment system. However, the report does not specify where the purge <br /> water is discharged for any individual well. The Discharger shall document within the field data <br /> sheets the disposition of purge water for each well. Field data sheets should also incorporate <br /> information such as rate at which groundwater is purged and sampled, calculation of purge <br /> volumes, total depth of wells, equipment calibration, etc. Provide more complete field data <br /> sheets -Aith the purging information as discussed above in the 2"d quarter 2006 groundwater <br /> monitoring report due 30 July 2006. <br /> The attached Monitoring Report Compliance Checklist for the groundwater monitoring report itemizes <br /> areas of concern. Please ensure subsequent Monitoring and Reporting Program reports include the <br /> necessary information to make them complete and adequate. <br /> If you have any questions,please contact Todd A. Del Frate at 916-464-4737. <br /> 1 <br /> r <br /> L <br /> VICTOR Y,IZZO <br /> Senior Engineering Geologist <br /> San Joaquin River Watershed Discharge to Land Unit <br /> Enclosure: N10nitoring and Reporting Checklist <br /> cc: \,iargaret Lagorio/Ray Von Flue, San Joaquin County Environmental Health Division, <br /> Stockton <br /> David L. Kirk,Lawrence & Associates, Redding <br /> TAD:Fo-,Rr.e:_�Q_3Q—lette, <br /> l <br />