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t <br /> Discussion <br /> jTPHD contaminants were observed at MW-3 at 56 micrograms per liter(ug/1) during this <br /> sampling event. Highly degraded TPHD has been observed at MW-3 previously. <br /> Conclusions and Recommendations <br /> MooringMloring well MW-3 was sampled during this quarter. TPHD was present at 56 ug/1 in <br /> MW-3 located near the former tank pit. TPHG, BTEX and MTBE and oxygenates were <br /> not detected in that well. <br /> This".is the first quarter of. reduced monitoring. The site is scheduled for continued <br /> quarterly sampling pending SJC EHD review and comment. <br /> I� <br /> Limitations <br /> This report has been prepared specifically for M&M,Builders site at 8111 West Eleventh <br /> Street in Tracy, CA and was done according to the State and local agency suggested <br /> guidance documents for these investigations. The interpretations, conclusions and <br /> recommendations made herein are based on professional judgment of the data and analysis <br /> for the soil and water samples collected on-site and should be reviewed in the context of <br /> thi's<report and other site reports. Wright Environmental Services, Inc. is not responsible <br /> for errors in laboratory analysis and reporting, or for information not available during the <br /> course of the study, and no warranty or guarantee is expressed or implied therein. <br /> ii <br /> If you.have any questions, please call. <br /> IV <br /> Sincerely, Q GFO <br /> Wright Environmental Services,Inc. <br /> i <br /> 1262 <br /> CERTIFIED <br /> �iiGl;'EERI'G <br /> John Lynch Christopher M.'Palmer , GEOLOGIST <br /> President HG 246, CEG 1262 <br /> n.s il A <br /> Dn <br /> it <br /> it <br /> Attachments: Table 1. Groundwater Well Water Levels, March 2003 <br /> Table 2. Groundwater Chemical Data, March 2003 <br /> Table 3. Historic Groundwater Chemical Data, March 2003 <br /> Table 4. Historic Groundwater Data for Of siteWater Wells <br /> Figure 1. Monitoring Well Locations;March 8, 2004 <br /> Figure 2. Groundwater Monitoring Well Sample Data, <br /> March 8, 2004 <br /> Cc:! Ms. Lori Duncan, San Joaquin County Health <br /> Page 3 <br />