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Table 2. Groundwater Chemical Data <br /> Well No Date TPHG Ben Tol Ethylben Xyl MTBE TBA DIPE ETBE TAME <br /> ugA -- <br /> MW 1 No Data-Monitoring Well Destroyed, June, 1999 <br /> MW-2 10/19/00 ND ND ND ND ND ND ND ND ND ND <br /> MW-3 10/19/00 ND ND ND ND ND ND ND ND ND ND <br /> MW-4 10/19/00 ND ND ND ND ND ND ND ND ND ND <br /> Blank 10/19/00 ND ND ND ND ND ND ND ND ND ND <br /> ND-None detected NA-Not Analyzed ugll-micrograms per liter <br /> Methyl-tert-butyl-ether(MTBE) Tert-Butyl Alcohol(TBA), Dt-Isopropyl Ether DIPE) Ethyl <br /> Tert-Butyl Ether(ETBE)and Tert-Amyl Methyl Ether('TAME) <br /> VOC deleted from sampling at PHS-EHD request Jan,2000 <br /> Discussion <br /> Groundwater flow direction appears consistent with historically observed trends Contaminants were not <br /> detected In any well during this sampling round <br /> Conclusions and Recommendations <br /> Contaminants were not detected in any well Groundwater flow trends are similar to those historically <br /> observed Wright has received notice of the PHS-EHD Intention to grant closure to this site Wright will <br /> schedule site closure report preparation pending PHS-EHD review of this report <br /> Limitations <br /> This report has been prepared specifically for the M & M site at 60 E 10th Street, Tracy, CA, and was <br /> done according to the State and local agency suggested guidance documents for these Investigations <br /> The interpretations, conclusions and recommendations made herein are based on the data and analysis <br /> for the water samples collected on-site and should be reviewed in the context of the whole report Please <br /> note that reports of contamination must be submitted to the agencies in a timely manner Wright <br /> Environmental Services, Inc Is not responsible for errors in laboratory analysis and reporting, or for <br /> information withheld during the course of the study, and no warranty or guarantee is expressed or Implied <br /> therein <br /> If you have any questions conceming this report, please call <br /> e 1 <br /> Sincerely, -�� � bra 1262 �`�'�`' � <br /> Wright Environmental Services, Inc <br /> CERTIFIED <br /> p 01t,Le"Lf I �-� CECLG61ST17 tr <br /> ohn Lynch Christopher M Palmer d; t <br /> Principal C E G 1262, HG 246 a ' <br /> • Attachments. Table 3 Historic Groundwater Chemical Data <br /> Figure 1 Site Plan and Groundwater Contour Map, October 19, 2000 <br /> Chemical Analytical Reports and Cham-of-Custody <br /> Page 4 <br />