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Report (738) 6'0 Crlson Geotechnical Main Office Salem Office Bend Office P.O. Box 23814 4060 Hudson Ave., NE P.O. Box 7918 A Division of Carlson Testing, Inc. Tigard, Oregon 97281 Salem, OR 97301 Bend, OR 97708 Geotechnical Consulting Phone (503) 684-3460 Phone (503) 589 -1252 Phone (541) 330 -9155 Construction Inspection and Related Tests FAX (503) 670 -9147 FAX (503) 589 -1309 FAX (541) 330.9163 February 22, 2001 FILE COpy Mr. Bill Crocker Lowes H.I.W. 1530 Faraday Avenue #125 Carlsbad, Califomia 92005 Geotechnical Letter of Compliance Lowe's H.I.W. l Tigard, Oregon CGT Project G0001561 Permit Number BUP98 -00520 Carlson Geotechnical has served as geotechnical engineer -of- record for the Lowe's H.I.W. project in Tigard, Oregon. As geotechnical engineer -of- record we conducted construction observations and testing during earthwork activities that included both part and full -time visits on an on -call and as needed basis during most of the year 2000. Our observations and testing were documented in our daily field reports, copies of which were forwarded to members of the design and construction team and City of Tigard personnel. Copies of our reports are available in our office, if requested. A summary of our field density tests is attached. Carlson Geotechnical specifically observed the following items during construction: • Site stripping • Grading activities (placement and compaction of structural fill) • Trench backfill and compaction • Footing subgrade observations • Subsurface drainage systems Carlson Geotechnical did not provide geotechnical design or construction observations for Keystone® and rockery walls built at the site. This work was completed by others. Based on our observations, as documented in our field reports, and to the best or our knowledge, within our scope of work, the above earthwork components were completed in general accordance with the project plans, specifications, and the recommendations of our geotechnical report for the project dated June 9, 1997. iii n Lowes H.I.W. Tigard, Oregon February 22, 2001 Please contact us if you have any questions. Sincerely, CARLSON GEOTECHNICAL f\ 7>56& ston San ino Timothy W. Blackwood, P.E. otechnical Staff Geotechnical Department Manager Attachments: Summary of In -Place Density Tests Distribution: Lowes H.I.W. — Bill Crocker — Fax: 760 - 918 -9112 City of Tigard Building Dept — Hap Watkins — Fax: 503 - 624 -3681 Continental Dirt Contractors Inc — John Harper — Fax: 253 -939 -5765 Sconzo Hallstrom Architects - Jim Bryan — Fax: 425 -455 -9351 Baugh Construction — Mike Doran — Fax: 503 - 968 -0484 JUB Engineers — Darral Moore — Fax: 509 - 736 -0790 • Carlson Geotechnical Page 2 of 2