ENG TRENCH COMPACTION REPORTEarth Solutions NW«C
15365 NE 90" Street, Suite 100 FIELD REPORT
Redmond, WA 98052
Office (425) 449-4704 1 esnw.com
Branch Office: Pasco, WA
Project No.
9960.00 Page 1 of 2 Report ID 9960.00 E 2024 0808
Date
Thu 8/8/2024 Weather 81 ° F Clear
Arrival/Departure Time(s)
3:05 PM — 3:20 PM Travel Time (hr) 1.25
Project Name
CDR1
Location
919 Cedar St, Edmonds
ESNW Rep. & Phone
Emmi Reinleitner I Field Technician 1206.867.8504
Client Info/Contact
Select Homes, Inc. I Gary Klick
Permit No(s).
BDL2022-0381
Reviewed By
LAC l 9+v HTW IXtW
Field Supervisor Initials/Date Project Manager Initials/Date
Limitations: The presence of our field representative at the site is to provide our client with a source of professional advice, opinions, and recommendations based upon the field representative's
observations and testing of the contractor's work. Our services do not include supervision or direction of the contractor, their employees, or agents. Geotechnical recommendations for
obtaining project objectives may be made by our representatives; however, direction of the actual work should come from the owner or contractor, as appropriate. The contractor is responsible
for complying with the contract documents at all times, regardless of the presence of our field representative. Jobsite safety, including compliance with all applicable state orfederal regulations,
is the sole responsibility of the contractor. The observations, recommendations, and conclusions provided in this field report are preliminary until reviewed by the ESNW project manager.
ESNW rep was on -site to observe and test garage slab subgrade fill, and utility crossing trench backfill
located in the street. The following was observed:
Garage Slab Subgrade — Observations and Testing:
ESNW rep observed the contractor had previously used a small excavator to place 12-inch-thick-or-less-
loose-lifts of native silty sands with gravel to fill garage to slab subgrade. Contractor informed ESNW rep
that compaction took place previously with a jumping jack plate compactor. Density tests indicate
adequate compaction of at least 95 percent of the maximum dry density at the tested locations.
ESNW rep was informed that a 4-inch leveling course of 1 '/4 - inch minus crushed rock will be placed
and compacted at a later date for slab -on -grade preparation. Please see attached map below.
Street Crossing — Observations and Testing:
ESNW rep was informed by contractor that the contractor had previously excavated a 2 foot trench for
utilities crossing as per plan, and had backfilled trench to road subgrade with 1 % - inch minus crushed
rock. Density tests indicate adequate compaction of at least 95 percent of the maximum dry
density at the tested locations. Please see attached map below.
The bolded Geotechnical observations below indicate the type of observations done today.
Required Geotechnical Observations:
• Monitor and test Structural fill placement and soil compaction:
• Observe bearing capacity at foundation locations
• Observe slab -on -grade preparation
• Verify infiltration system placement
• Monitor foundation drainage placement
• Observe excavation stability
ESNW rep will return to observe slab -on -grade preparation when requested.
Report ID 9960.00 E 2024 0808
Page 2 of 2
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- — - TRANSITION TO PER TR 561
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IF AT ANY POINT DURING CONSTRUCTION
MATCH E' WIDE ASPHALT 16.D'
EX GRADE WALKWAY - _ _ i
THEIST DETERMINES THE WAINAGE
Street Crossing
ASPHALT
PAVEMENT WIDENING SHALL BE
CONSISTENT WITH COE STD CEDAR STREET
OF
STANDARD CURD. GUTTER AND CONCRETE
Backfill Location
TR 505. SEE CEDAR STREET
SIDEWALK SMALL BE CONSTRUCTED
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— —
Test
Reference
Maximum
Test
Test
of
Number
Test Location
Elevation
Proctor
Dry Density
Moisture
Dry Density
MDD
(pcfl
(D/D)
(pcfl
1
Garage Slab SG
SG
1
120.9
11.3
115.8
96
2
Street Crossing
SG
2
120.7
3.5
117.6
97
Earth Solutions NW. LLC