Laserfiche WebLink
r v <br /> . DISCUSSION <br /> Results of this monitoring event indicate that the levels of dissolved hydrocarbons are generally consistent <br /> with levels detected in previous sampling events The groundwater flow direction (east) and gradient were <br /> generally consistent with previous sampling events Groundwater elevation decreased 1 99 feet in the <br /> wells from the previous sampling event (June 1999) <br /> A letter concerning oxygenate sampling of wells at this site was sent to the San Joaquin County Public <br /> Health Services (SJCPHS) along with the Tank Removal Report on May 4, 1998 The SJCPHS letter <br /> dated June 18, 1998, allowed analysis of samples from current monitoring wells using U S Environmental <br /> Protection Agency (USEPA) Method 8020 After installation of any new on-site or off-site wells, SJCPHS <br /> will require oxygenate analysis using USEPA Method 8260 <br /> AS/SVE operation will begin after PG&E provides electrical service to the system System startup <br /> activities will be performed consistent with air district regulations <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Data <br /> • Figure 1 Groundwater Analytical Summary (Third Quarter 1999) <br /> • Figure 2 Groundwater Elevation Contour (Third Quarter 1999) <br /> • Appendix A Sampling and Analysis Procedures <br /> • Appendix B Laboratory Analysis Reports and Cham-of-Custody Records <br /> • Appendix C Field Data Sheets <br /> r� <br /> M� <br /> CP1C\Archive\Arco105481Qtrly\0548Q399 DOC-98Usg 1 T"� <br />