Report 06/02/04 WED 13:15 FAX 503 670 9147 CARLSON TESTING tj 001
C ar lson •Geotechnical P.O Box 23814 60 Hudson Ave., NE P.O. Box
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
June 2, 2004
Mr. Tim Horst
DDHK Ventures
9790 SW Nimbus Avenue
Beaverton, Oregon 97008
Geotechnical Letter of Compliance
Tigard Quick Lube
13565 SW Pacific Highway
Tigard, Oregon
Building Permit Number: BUP2003 -00435
Site Permit Number: SIT2003 -00022
CGT Project: G0302069.a
Carlson Geotechnical (CGT) has performed geotechnical observations for the following items at
the above - referenced site. Our observations were completed on an on -call, part -time basis
during the months of January, February, and March of 2004. Copies of our field reports have
been forwarded to you, and are also available in our office.
• Grease Pit Floor Slab Bearing Surfaces: Based on our field observations, the
subgrade soils for the grease pit were prepared in general accordance with our
• recommendations.
• Retaining Wall Subgrade: Based on our field observations, the subgrade soils for the
retaining wall located on the northern property line were prepared in general accordance
with our recommendations.
• Parking Area Subgrade: Based on our field observations, the subgrade soils for the
parking are located to the north of the building were prepared in general accordance with
our recommendations.
• Waiting Room Floor Slab Base Aggregate: Based on our density testing, the floor slab
base aggregate for the wa room was compacted in general accordance with our
recommendations.
08/02/04 WED 13:16 FAX 503 870 9147 CARLSON TESTING a 002
Tigard Quick Lube
Tigard, Oregon
G0302069.A
June 2, 2004 •
Based on our observations, as documented in our field reports, and to the best or our
knowledge, within our scope of work, the above geotechnical observations were completed in
general accordance with the recommendations contained in our Report of Geotechnical
Services dated March 14, 2003. We were not requested to perform observations other than
those noted.
Sincerely,
CARLSON GEOTECHNICAL
r ,. 4 #15648 f l )
P„.■ •. EGNN N ce
•
�-- -7 °I:g$:12.SI -ot as
l
Brian C. Ranney, G.I.T_ Jeanne M. Niemer, P.E.
Geotechnical Project Manager Principal Geotechnical Engineer
•
Carlson Geotechnical G0001520:041900