HomeMy WebLinkAbout7945.04 E 2023 0810Earth Solutions NWLLC
15365 NE 90th Street, Suite 100
Redmond, WA 98052
Main (425) 449-4704 | Fax (425) 449-4711
www.esnw.com
FIELD REPORT
Project No. 7945.04 Page 1 of 4 Report ID 7945.04 E 2023 0810
Date Thu 8/10/2023 Weather 70°F Clear
Arrival/Departure Time(s) 9AM; 9:45AM Travel Time (hr)1.0
Project Name Canopy Property
Location 413 Lincoln Ave NE, Renton
ESNW Rep. & Phone Willem Scherwin | 206 793 8569
Client Info/Contact Century Communities | Stacia Bloom
General Contractor Info/Contact
Contractor #2 Info/Contact
Reviewed By LAC
Initials/Date
RAC
Initials/Date Field Supervisor Project Manager
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 or federal 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 onsite to observe and test vault backfill.
Vault Backfill
Upon arrival onsite, ESNW rep observed the contractor place the footing drain around the exterior of the
footing. Rep observed the contactor placing a 4” perforated drainage pipe around the base of the footing,
bedded in 7/8th inch washed rock. The washed rock and drainage pipe were wrapped in geotextile
nonwoven fabric. ESNW rep observed the contractor placing another drain approximately 5’ above the
footing drain, also wrapped in washed rock and geotextile nonwoven fabric. ESNW rep observed the
contractor placing 12” lifts of grey sandy silt with gravel and compact it with a diesel sled compactor and
a vibrating drum roller. ESNW rep took compaction tests and observed adequate compaction of at least
95% of the proctor at the tested locations. Please see map and table below.
Test
Number Test Location Elevation Reference
Proctor
Maximum
Dry Density
(pcf)
Test
Moisture
(%)
Test
Dry Density
(pcf)
% of MDD
171 Vault Backfill -4 9 128.5 13.2 121.9 95
172 Vault Backfill -4 9 128.5 12.3 124.3 97
Report ID 7945.04 E 2023 0810 Page 2 of 4
Earth Solutions NW, LLC
Report ID 7945.04 E 2023 0810 Page 3 of 4
Earth Solutions NW, LLC
Report ID 7945.04 E 2023 0810 Page 4 of 4
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