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SEC ® R <br /> Circle K Store 1205 <br /> September 7, 2004 <br /> Page 4 <br /> r ' <br /> ti. <br /> the screen interval and by purging approximately 10 casing volumes of water. Well <br /> will then be sampled during the next quarterly monitoring and sampling event. <br /> • Soil and Water Disposal. Soil cuttings generated during drilling operations will be <br /> stored in DOT-approved 55-gallon drums. Water generated during equipment <br /> cleaning will be temporarily stored in DOT-approved 55-gallon drums pending <br /> transport by a licensed disposal contractor to an appropriate disposal or treatment <br /> facility. Soil cuttings and purge water drums will be temporarily stored onsite <br /> pending transportation and disposal. <br /> Well Surveying. Upon completion of well construction, the wells will be surveyed by <br /> a California-licensed surveyor to a local benchmark relative to mean sea level. <br /> Groundwater gradient data will be interpreted utilizing the top of well casing <br /> elevations and depth-to-water measurements. <br /> • Report. A report in the form of a Site Conceptual Model will be prepared after <br /> completion of necessary fieldwork. The report will include the boring log and waste <br /> disposal manifests. <br /> Field Procedures are included as Attachment A. <br /> SCHEDULE <br /> SECOR is prepared to initiate well installation and soil boring activities in approximately 4-6 weeks <br /> following approval of this work plan and the procurement of permits. Upon completion of all .� <br /> necessary fieldwork, SECOR will prepare a report documenting assessment activities. Y; <br /> If there are any questions, please call us at(918) 881-0400. <br /> Sincerely, '.' <br /> SECOR International, Incorporated <br /> e' <br /> �4p,0FESS/0.� <br /> Clinton Harms �, �� s�� ff <br /> Associate Scientist " NO.C 056399 <br /> CML <br /> Rusty E. Benkosk , P.E. �OfG4L'E�� <br /> Senior Engineer <br /> Attachments: Figure 1 —Site Plan with Proposes Boring Locations r` <br /> Attachment A—Field Procedures <br /> 3y,5 <br /> cc: Mr. Ed Ralston, ConocoPhillips <br /> s <br /> IAConocoPhi1lips112051Work Plan For Well Installation 9-04.Doe <br /> T <br />