Soil Testing Krazan 2022Pagel of 2
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_t Z l&Associates, Inc.
Geotechnical Engineering • Environmental Engineering
Construction Testing and Inspection
Field
Report NO.: 09222016DFR922022AL
DATE: 9/2/2022 Set Count: CONTRACTOR: Owner
PROJECT #: 09222016 PERMIT #:
PROJECT: 545 Main Street INSPECTOR: Amelia Leong
LOCATION: 545 Main Street, Edmonds JURISDICTION: City of Edmonds
KA P.M.: JM WEATHER: Sun TEMP: 75' F
A Krazan geotechnical representative visited the project site today for a footing subgrade evaluation.
Upon arrival on site, we met with the contractor to discuss project specifications.
Footing Subgrade Evaluation
Project Description:
The project includes construction of a new deck cover, along with associated posts and footings. The
"Foundations: Spread Footings" section on Page S 1.1 of the structural plans prepared by CG
Engineering specifies that design has been performed assuming a maximum bearing capacity of 2,000
psf.
Project Geology:
We reviewed the "Geologic Map of the Edmonds East and Part of the Edmonds West Quadrangles,
Washington" (Minard, 1983). The site area is mapped along the border of Transitional Beds (Fraser
Glaciation to Pre -Fraser Glaciation) and Whidbey Formation (Pre -Fraser Glaciation). Transitional
beds consist of clay, silt, and fine to very fine sand. Whidbey Formation typically consists of compact
medium -to -coarse -grained sand.
Building Pad Subgrade Evaluation:
Upon arrival today, the contractor had excavated to approximately 4 feet below current surface grade
for eight (8) isolated post footings and placed sonotube forms. At the time of our site visit, the
sonotubes and associated reinforcing steel had been placed in the excavations; as such, our exploration
had limited access and visibility to/of the exposed soils at the bottom of the excavations.
We observed the exposed subgrade in the building excavations to consist of light brown medium -to -
coarse -grained sand with gravel and trace silt. The exposed material was interpreted to be native soils.
No groundwater seepage was observed in the excavations.
We evaluated the exposed subgrade using a 1/2-in diameter steel T-probe rod. The exposed subgrade
probed approximately 3 inches to 6 inches under moderate pressure, indicating medium dense
conditions.
Offices Serving the Western United States
Lynnwood (425) 485-5519 • Poulsbo (360) 598-2126 • Tacoma (253) 939-2500
The information provided on this report is prepared for the exclusive use of the client. This report may not be reproduced in any format without the written permission of the client and Krazan & Associates. This report
indicates our inspectors observation and testing results based on site conditions and contractor activities. This information is subject to review prior to final submittal. By signing this report, our inspector does not accept
responsibility for validity of results. The same information has been provided by others on site. The test results apply only to the specific locations, and items inspected or tested.
Page 2 of 2
'� &Associates, Inc.
Geotechnical Engineering • Environmental Engineering
Construction Testing and Inspection
Conclusion:
Field
Report NO.: 09222016DFR922022AL
In our opinion, the exposed subgrade should provide adequate support for the assumed 2,000 psf
foundation loads.
Reviewed By: ASTM Test #: Asset Numbers :
To the best of my knowledge, the above WAS performed in accordance with the approved plans, specifications and
regulatory requirements.
Superintendent/Representative: Technician:
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Offices Serving the Western United States
Lynnwood (425) 485-5519 • Poulsbo (360) 598-2126 • Tacoma (253) 939-2500
The information provided on this report is prepared for the exclusive use of the client. This report may not be reproduced in any format without the written permission of the client and Krazan & Associates. This report
indicates our inspectors observation and testing results based on site conditions and contractor activities. This information is subject to review prior to final submittal. By signing this report, our inspector does not accept
responsibility for validity of results. The same information has been provided by others on site. The test results apply only to the specific locations, and items inspected or tested.