Report ALOHA BACKFLOW S0173
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. IN COMPLETING AND SUBMITTING r;THIS TEST REPORT, THE TESTER CERTIFIES THAT THE
ASSEMBLY HAS BEEN TESTED AND MAINTAINED.IN ACCORDANCE'WMi ALL APPLICABLE
RULES AND REGULATIONS OP THE WATERSYSTEM . AND STATE REGULATIONS
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GAUGE CALIBRATION DATE / Pg DETECTOR. METER READING '
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; TE SIGNATURE CERT
GEORGE SAVKO 185022 020990
TESTERS NAME-PRINTED CCS# GAUGE 0
. 5074 NE STABLE CT., HILLSBORO:OR ' 503-693-1720
TESTERS ADDRESS
PHONE N
ALOHA BACKFLOW TESTING & INSPECTION
COMPANY NAME >'/
-0 SERVICE RESTORED
REPORT RECEIVED By: (REPRESENTATIVE OF OWNER) i' , ,
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From: "Brad Wilcox" <bwilcox @carlsontesting.com>
To: <ecinc @comcast.net>
Subject: Nix Partition
Date: Friday, November 07, 2008 3:31:45 PM
Brad M. Wilcox, P.E.
Geotechnical Project Manager
Carlson GeotechnicaI a
7185 SW Sandburg Street, Suite 110
Tigard, Oregon 97223
ph: 503 - 601 -8250 ext. 109
fax: 503 - 601 -8254
(Attachments successfully scanned for viruses.)
Attachment 1: (application /pdf)
http: / /mailcenter3. comcast .net/wmc /v/wm/49150220000215B 8000057AB2215561264000... 11/7/2008
z j 4
C arlson Geotechnical Main Offtce 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 j
CGT No. G0703181.A
Permit No. Unavailable
FIELD OBSERVATION REPORT (3 pages)
DATE COVERED: October 30 and 31, 2008 (3 site visits)
PROJECT: Nix Partition COS
ADDRESS: 12630 SW 121st Avenue - Tigard, Oregon
BY: Brad M. Wilcox, P.E.
WEATHER: Cloudy /Showers, —60° F
PURPOSE OF VISIT: Residence Pad Subgrade Conditions
PROJECT GEOTECHNICAL REPORT: Report of Geotechnical Investigation, dated November 16, 2007,
prepared by Carlson Geotechnical (CGT).
Site Visit on October 30, 2008
arrived on -site at about 9:00 a.m. at the request of Brian Smith with Pacific Groundworks (PG). The purpose of my
visit was to observe residence pad subgrade conditions. l met with Juan on -site.
During my visit, I observed that excavation was underway for the proposed single family residence. The following
summarizes my observations this morning:
• Based on my conversations with Juan and review of site staking, excavation was about 80 percent
complete for the proposed residence. Additional excavation was required along the south portion (area of
deck footings) of the residence area.
• The excavation consisted of one bench, which was generally level to slightly sloped to the east. The depth
of the excavation ranged from about 3V2 to 4% feet below top -of- asphalt elevation within the private
roadway directly north of the residence area.
• The exposed soils in general consisted of native, brown /gray, moist, lean clay (CL), with two exceptions
(see next bullet). Using a % -inch diameter foundation rod, I probed the exposed native lean clay subgrade
and in general I was unable to penetrate more than about 3 inches using strong pressure, indicating
medium stiff to better soil consistencies.
• Two exceptions were noted during today's visit:
, o An approximate 6 -foot (north- south) by 10 -foot (east - west), heavily rooted area within the SW
portion of the excavation. It appeared that the rooted area may had been associated with a
previous tree / root ball. I observed Juan over - excavate the rooted soils with the on -site, track -
mounted excavator. Over- excavation depths of about 1 /2 to 'A feet were necessary in order to
remove the organics and expose the native, medium stiff to better, lean clay (CL).
o Undocumented, clayey gravel fill was exposed within an approximate 5 -foot (north- south) by 30-
foot (east -west) area located along the north edge of the excavation. It appeared that the clayey
gravel fill was associated with NCL item #1 (uncontrolled fill) as indicated in our field report dated
December 10, 2007. I observed Juan over- excavate the uncontrolled fill with the on -site, track-
/ mounted excavator. Over - excavation depths of about 3 to 6 inches were necessary in order to
remove the uncontrolled fill and expose the native, medium stiff to better, lean clay (CL).
• Juan indicated that the over- excavated areas would not be backfilled with structural fill.
Juan indicated that excavation would likely be completed later today, and requested that I return to the site in the late
afternoon hours or early the following morning (10/31/08) to continue observations. I left the site at about 9:25 a.m. E�
Site Visit on October 31, 2008
I returned to the site at about 8:00 a.m. as requested by Juan. I observed that excavation was nearly complete within
the proposed residence area. Additional cleanout of loose /stockpiled soils was needed within the east 1 4 of the
residence area.
Excavation along the proposed south perimeter fooling line, as well as the 8 deck column footings (excavation
protrusions), was complete. The exposed soils consisted of native, brown, lean clay (CL). Using the same
}
Nix Partition - COS
• Tigard, Oregon
CGT Project Number G0703181.A
October 30 and 31, 2008
Page 2 of 3
foundation rod, I probed the exposed native lean clay subgrade and in general I was unable to penetrate more than
about 2 inches using strong pressure, indicating medium stiffto better soil consistencies.
Juan indicated that the loose soils would be removed later this morning, and requested that I return to the site later in
the day to conclude observations. I left the site at about 8:15 a.m.
t returned to the site at about 11:15 a.m. I observed that excavation was complete within the eastern portion of the
residence pad. The exposed soils consisted of native, brown /gray, moist, lean clay (CL). Using the same foundation
rod, I probed the exposed native lean clay subgrade and in general I was unable to penetrate more than about 2
inches using strong pressure, indicating medium stiff to better soil consistencies.
I left the site at 10:20 a.m.
Conclusions of Site Visits
Based on my observations and probing, the residence pad subgrade soils were prepared in general accordance with
our recommendations. If fill is to be placed within the residence area, and used for support of footings and/or floor
slabs, the fill should be placed and compacted in general accordance with the referenced geotechnical report. CGT
should be contacted to perform in -place density testing of structural fill, if necessary.
( : ) b it., 0A(
Brad M. Wilcox, P.E. Jeff Jones, G.I.T.
Geotechnical Project Manager Project Geologist
Note: Our reports pertain to the locations observed at the time of our visit only. Information contained herein is not to
be reproduced, except in full, without prior authorization from this office.
ATTACHMENTS: Site Plan (1 page)
•
DISTRIBUTION: David Nix - Email: davenixaverizon.net i1-3' °fir fez
Project File: G:Projects\2007 Projects1G0703181\Nix Partition\COS
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ID DATE DESCRIPTION DATE CLEARED
Fine - grained fill placed within on -site roadway alignment between
about Station 5 +00 and 6 +00, and within 15 -foot wide utility Partial (10-31-08).
easement along the south side of the roadway between about Station Uncontrolled fill
1 12 -10 07 removed within
3 +25 and 6 +00, was reportedly too wet for adequate compaction as
structural fill. CGT has not observed the condition of this fill material Proposed re
or evaluated its compaction. footprint.
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