Puget Drive - DFR 9-17-21GEOTECHNICAL ENGINEERING • ENVIRONMENTAL ENGINEERING
CONSTRUCTION TESTING & INSPECTION
September 14, 2021
Mr. Chris Stevens (E-Mail)
ERICSSON INC.
6300 Legacy Drive
Plano, TX 75024
RE: CONSTRUCTION TESTING AND INSPECTION
SN61 Puget Drive
1414 91' Avenue N.
Edmonds, Washington
Dear Mr. Stevens,
KA No. 096-21421
In accordance with your request and authorization, our firm performed construction testing and inspection
for the above -referenced project. The sampling and testing was performed by our inspectors and reports
are included.
If you have any questions, or if we can be of further assistance, please do not hesitate to contact our
office.
Respectfully submitted,
KRAZAN & ASS ATES, INC.
Jeffrey S. Mercer
Operations Manager
Pacific Northwest Division
JSM/lkj
C.C. CITY OF EDMONDS
4303 198" Street SW, Lynnwood, Washington 98036 • (425) 485-5519 • FAX (425) 485-6837
Willi Offices Serving the Western United States
09621421 DFR
^aZarl &ASSO CIATES
GEOTECHNICAL ENGINEERING • ENVIRONMENTAL ENGINEERING
CONSTRUCTION TESTING & INSPECTION
FORENSIC INVESTIGATION
Date:
Project No.:
Project:
Project Location:
Krazan PM
September 09, 2021
096-21421
SN61 Puget Drive
1414 Ninth Ave N, Edmonds,
WA
JM
FIELD REPORT
Report No.:
09621421 DFRO90921-NG
Contractor:
Ericsson
Permit No.:
BLD2021-0102
Inspector:
Niccolo Guiao
Jurisdiction:
City of Edmonds
Weather:
Sunny Temp: 60-70's F
A Krazan representative visited the project site today for an epoxy inspection. Visual inspection would be
difficult to perform since the two (2) new T-Mobile pipe antenna mounts would be anchored to the existing
masonry brick (chimney) at the rooftop. The new antenna mounts could only be accessed using a telescopic
boom lift.
Prior to the epoxy installation, materials such as anchor and drill bit dimensions, epoxy, and tools used for the
epoxy installation were verified. We also discussed with the contractor the epoxy installation procedures. Drill
bit was taped for embedment indication.
Upon arrival, the contractor began drilling eight (8) anchor locations for the pipe antenna mounts Z-brackets.
We were provided by the contractor a Rooftop Structural Analysis Report indicating the pipe antenna mounts
anchor details.
The anchors consisted of %-in diameter x 6 %2-in long Hilti HAS-V Zinc coated threaded rod. The contractor
cleaned the holes using manual air pump and wire brush.
The masonry brick was about 3 1/2-in thick and embedment requirement was 4 1/2-in thick. The chimney
appears to be a double brick wall. A cavity was encountered past the exterior brick. The contractor had to use
screen tubes to address the cavity between the bricks. The contractor used a Hilti HIT-HY 270 with lot no.
14639860 and expiration date of 02/28/2022 as epoxy. The screen tubes consisted of Hilti Hit -SC 18x85.
In our opinion, the contractor performed the installation per the manufacturer's instruction and pipe antenna
mount anchor details.
Site photos are attached for reference.
To the best of my knowledge, the a0ove WAS performed in general accordance to the approved plans and project specifications.
Superintendent/Re se i e: Technician: Niccolo Guiao
4303 — 1981b Street SW • Lynnwood, Washington 98036 • (425) 485-5519 • FAX (425) 485-6837
With Offices Serving the Western United States
KRAZAN & ASSOCIATES, INC.
Site Photos:
• � r
09 621421 DFR090921-NG
SN61 Puget Drive
Page No. 2
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To the best of my knowledge, the above WAS performed in general accordance to the approved plans and project specifications.
Superintendent/R sentative: Technician: Niccolo Guiao
Krazan & Associates, Inc.
Offices Serving The Western United States