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Stantec <br /> May 6, 2009 <br /> Page 5 of 5 <br /> SUMMARY AND CONCLUSION <br /> On February 4, 2009, Stantec performed a soil and groundwater assessment and collected soil <br /> and groundwater samples to assess any residual impacts to the site. <br /> No contaminant concentrations were detected above laboratory reporting limits in any of the soil <br /> samples collected during this investigation. <br /> With the exception of 1,200 micrograms per liter (ug/L) TPHmo in boring GP-1 and 1.9 ug/L <br /> MTBE in boring GP-4, no other contaminants were detected above laboratory reporting limits in <br /> groundwater collected from borings GP-1 through GP-4. <br /> Based on historical laboratory analytical results, hydrocarbon-impacted groundwater and soil <br /> was present beneath the site; however, the impacts are well documented to be associated with <br /> a UST and dispenser release addressed by the SJCEHD, which was granted closure in 1996. <br /> Should you have any questions regarding this site, please contact the undersigned at (916) 861- <br /> 0400. <br /> Sincerely, <br /> Stantec Consulting Corporation <br /> Prepared by Reviewed by: <br /> Patrick Herrmann Damon Brown <br /> Project Scientist Geologic Associate <br /> Project Manager <br /> Reviewed by: / \oNAL,�n�"° <br /> p�� <br /> Fo s lE�l K ��Oc <br /> ` '`�•• <br /> No <br /> _ a .4422 Z <br /> Ed Simonis P.G. * 1.E•iQ_10 <br /> Senior Geologist a /� <br /> ATTACHMENTS <br /> Tables <br /> Attachment A—Permits <br /> Attachment B — Field Notes <br /> Attachment C —Soil Boring Logs <br /> Attachment D —Certified Analytical Reports and Chain-of-Custody Documentation <br /> Attachment E —Waste Disposal Documentation <br /> C. Mr. John Wainwright, Stantec, 308 East 4500 South, Suite 100, Murray, Utah 84107-3957 <br /> 14113 Soil and Groundwater Assessment Results.doc <br />