Laserfiche WebLink
.7 <br />i <br />S E C 0 R <br />Richard C Prima Jr <br />February 19, 2002 <br />Page 2 <br />treated and discharge a total of 5,698,992 gallons Calculated discharge rates during this reporting <br />period ranged from 7 55 to 8 23 gallons per minute (gpm) <br />During this reporting period the GWET system extracted approximately 0 1 pounds of TPHg and <br />MtBE To date, the GWET system has extracted approximately 8 5 pounds of TPHg, 0 2 pounds of <br />benzene, and 84 6 pounds of MtBE Plots of GWET system mass removal trends and influent <br />groundwater TPHg, benzene, and MtBE concentrations versus time are shown on Figures 4 and 5, <br />respectively Certified analytical reports and chain -of -custody documentation and GWET system <br />operation and maintenance field data sheets are included in Attachments 1 and 2, respectively <br />SYSTEM MODIFICATIONS <br />There were no system modifications during this reporting period <br />SUMMARY OF VIOLATIONS <br />There have been no violations of the discharge limitations during this reporting period <br />Should you have any questions or require additional information, please feel free to contact Bob <br />Jackson at (916) 861-0400 extension 283 <br />Sincerely, <br />SECOR International Incorporated <br />r <br />Bob W Jackson Jr <br />Staff Geologist <br />Attachments <br />Certification <br />Figure 1 Site Location Map <br />Figure 2 Remediation System Site Plan <br />Figure 3 Groundwater Extraction System Process Flow Diagram <br />Figure 4 Cumulative Groundwater Extraction Constituent Mass Removal <br />Figure 5 Groundwater Extraction Influent Constituent Concentrations <br />Table 1 Groundwater Extraction System Analytical Data <br />Table 2 Groundwater Extraction System Performance Data <br />avid M Evans <br />Project Manager <br />Attachment 1 Groundwater Extraction Analytical and Chain -of -Custody Documentation <br />Attachment 2 Groundwater Extraction Field Data Sheets <br />11Chevron1957751Periodic MonitoringkO & KReportsNonthifflischarge Reports12003Wanuary 2003 DR doc <br />