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iassaa <br />Second Quarter 1992 Groundwater Monitoring Report <br />Corrigan Property, Stockton, California <br />August 10, 1992 <br />Page 2 <br />All purged water was containerized in DOT approved drums and left on site pending laboratory <br />analyses Water containing nondetectable concentrations of BTEX and TPHG will be disposed <br />of at the site by dumping the water within the planters <br />Laboratory analyses determined that all three wells contained nondetectable concentrations of <br />BTEX, TPHG, TPHD, and total lead Laboratory reports with chain -of -custody documents are <br />presented in Attachment 2 Table 2 summarizes laboratory results since March 1991 <br />Groundwater samples collected during the March 1991 sampling event determined the presence <br />of petroleum hydrocarbons in the upgradient monitoring well, indicating a possible off site <br />source <br />The necessary drilling permits for additional investigation have been approved by the San <br />Joaquin County Public Health Services Prior to the commencement of additional field <br />activities, RESNA Industries requests, on behalf of Mrs Zona Corrigan, the opportunity to <br />review the site assessment report for the site located due west from the Corrigan Property on <br />San Juan Avenue <br />If you have any questions or need any additional information regarding this project, Please <br />contact me at (209) 838-3507 <br />Respectfully, <br />RESNA Industries <br />Tina Le Page <br />Project Manager <br />Gregory P Stahl <br />CA Registered Geologist No 5023 <br />MRM/ggk <br />Attachments <br />cc Ms Zona Corrigan <br />Mr Lee Helms, Cyr Realtors <br />Mr G L Boggs, CARWQCB <br />GR073092 MRM <br />