Laserfiche WebLink
r <br /> • A S S O C I A T E S I N C <br /> reported as unidentified hydrocarbons in the C9-C24 range Results of laboratory analyses are <br /> summarized in Table 2 <br /> SUMMARY <br /> The groundwater flow direction and gradient were consistent with those evaluated during <br /> previous events Dissolved gasoline hydrocarbons were detected in the sample from well MW-1 <br /> Dissolved hydrocarbons in the diesel range were detected in the samples from wells MW-1 and <br /> MW-2 during the reporting period MTBE was detected in the sample from well MW-1 at a <br /> concentration of 46 ppb ' <br /> If you have any questions with this project, please call our Modesto office at (209) 579-2221 <br /> Respectfully submitted, <br /> ATC Associates Inc <br /> fltw vo"�' <br /> Drew Van Allen �OQg0S1Q,y�l <br /> Staff Scientist ��� JEANNE F� <br /> HOMEY <br /> NO. C047410 <br /> Jeanne Homsey Exp'-IL/qq ` 7 <br /> CA Registered Civil Engineer No 47410 �'� CIVIL <br /> cc Jim Escobar, City of Stockton �V CAO <br /> Mark List, CRWQCB Central Valley Region <br /> Attachments Table 1 Groundwater Elevation Measurements and Subjective Analyses <br /> Table 2 Results of Laboratory Analyses of Groundwater Samples <br /> Figure 1 Site Vicinity Map <br /> Figure 2 Generalized Site Plan <br /> Figure 3 Potentiometric Surface Map, September 22, 1998 <br /> Attachment 1 Field Procedures <br /> Attachment 2 Groundwater Monitoring Data and Purge Logs <br /> Attachment 3 Laboratory Analysis Reports <br /> • <br /> w 162574162574 01194367\3QSR98doc 3 <br />