ARCHIVED REPORTS XR0001820 - Laserfiche WebLink

Home Browse Search

i I 1 Date May 17, 1996 • ARCO QUARTERLY GROUNDWATER MONITORING REPORT Facility No 00760 Address 225 South Cherokee Lane, Lodi, California ARCO Environmental Engineer Kyle Christie Consulting Co/Contact Person EMCON/Jay R Johnson Consultant Project No 20805-142 005 Primary Agency/Regulatory ID No Linda Turkatte, San Joaquin County Public Health Services WORKED PERFORMED THIS QUARTER (First- 1996) 1 Performed quarterly groundwater sampling 2 Compiled and evaluated groundwater monitoring data WORKED PROPOSED FOR NEXT QUARTER (Second- 1996) 1 ARCO will continue to perform quarterly groundwater monitoring The next sampling event is tentatively scheduled for May 1996 2 EMCON will finalize the problem assessment report (PAR)/remedial action plan (RAP) Current Phase of Project Remedial Alternatives being Evaluated • Frequency of Groundwater Sampling _ Quarterly Frequency of Groundwater Monitoring Quarterly Is Free Product (FP) Present On Site No FP Recovered this Quarter None Cumulative FP Recovered to Date None Approximate Depth to Groundwater 58 02 to 59 29 Groundwater Gradient South 0 002 DISCUSSION (optional) Results of this monitoring event indicated that levels of dissolved gasoline hydrocarbons are consistent wdh levels detected during previous sampling events Groundwater gradient is consistent with previous sampling events Groundwater elevation increased approximately 2 58 feet from the previous sampling event (November 1995) ATTACHMENTS • Table 1 Groundwater Monitoring Data • Figure 1 Site Map • Figure 2 Generalized Site Plan • Figure 3 Groundwater Contour Map (February 1, 1996) • Appendix A Sampling and Analysis Procedures • Appendix B Laboratory Analysis Reports and Chain-of-Custody Records cc Elizabeth Thayer, RWQCB SAC\[V\P70N0805\08051420 SAS-95\r-jb 1