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`a1 �iy <br /> second consecutive quarter in these wells, the dissolved volatile components decreased slightly <br /> from the previous quarter In our opinion, this suggests a degraded fuel product depleted in <br /> dissolved volatile constituents <br /> I <br /> Conclusions and Recommendations <br /> Groundwater flow direction was northerly under a low calculated gradient Dissolved <br /> contaminant concentrations have decreased slightly in the wells MW-3 and MW-9, and thin SPP <br /> was observed in these two wells In our opinion, the mapped contaminant dissolved plume <br /> continues to occur near the center of the site, similar to historic observations <br /> PHS-EHD had requested additional subsurface investigation in the vicinity of the former tank <br /> locations and Well MW-9 Wright has completed this work and has submitted an investigation <br /> report containing a recommended cleanup approach to the PHS EHD for their review The site <br /> is scheduled for continued quarterly monitoring at this time <br /> Limitations <br /> This report has been prepared specifically for the Mr Ed's Muffler (Cox and Cox) Site at 595 E <br /> 11th Street in Tracy, and was done according to the current State and local agency suggested <br /> guidance documents for these investigations The interpretations, conclusions and <br /> recommendations made herein are based on the data and analysis for the soil and water samples <br /> collected on-site and should be reviewed in the context of this report and other site reports <br /> Please note that reports of contamination must be submitted to the agencies in a timely manner <br /> Wright Environmental Services, Inc is not responsible for errors in laboratory analysis and <br /> reporting, nor for information not available during the course of the study, and no warranty or <br /> guarantee is expressed or implied therein If you have any questions concerning this report, <br /> please call <br /> D <br /> Sincerely, ��' GFS <br /> ��-, IER <br /> Wright Environmental Services, Inc. <br /> N° 1262 <br /> CERTIFIER <br /> , <br /> Joh Lynch Christopher EI�G LEEZ,I6 M Palmer C�OLOG+�1. <br /> Principal C E G 1262, HG 246 f�j <br /> Attachments Table 1 Historic Groundwater Levels and Contaminants <br /> Figure 1 Groundwater Contour Map, July 30, 2001 <br /> Figure 2 Groundwater TPHG Plume Map, July 30, 2001 <br /> Figure 3 Groundwater Benzene Plume Map, July 30, 2001 <br /> Groundwater Sampling Information Sheets <br /> Chemical Analytical Data and Chain-of-Custody Forms <br /> Page 3 <br />