HomeMy WebLinkAbout7945.04 E 2023 0821Earth 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 3 Report ID 7945.04 E 2023 0821
Date Mon 8/21/2023 Weather 75°F Clear
Arrival/Departure Time(s) 9:15AM; 10AM 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
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 the backfill of storm main, and sewer main.
Storm Main
ESNW rep was onsite to observe and test the storm main backfill onsite. ESNW rep observed the
contractor excavate approximately 3’ deep into native soil to place the 18” storm main. The contractor
backfilled the pipe using native tan sandy silt with gravel and compacted it using a hoe pack. ESNW rep
took compaction tests and observed adequate compaction of at least 95% of the modified proctor at the
tested locations.
Sewer Main
ESNW rep tested backfill of sewer main while onsite. ESNW rep had observed the contractor had
excavated approximately 4’ deep into native soils to place the sewer main. Once the sewer pipe was
placed the contractor backfilled with structural soil that had been sprayed with water, and compacted it
with a hoe pack. ESNW rep took compaction tests and observed adequate compaction of at least 95% of
the modified 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
176 Storm Backfill SG 7 128.5 11.4 122.4 95
177 Storm Backfill SG 7 128.5 11.9 121.9 95
178 Sewer Main SG 7 128.5 10.8 121.8 95
179 Sewer Main SG 7 128.5 10.3 122.1 95
Report ID 7945.04 E 2023 0821 Page 2 of 3
Earth Solutions NW, LLC
Storm Main
Sewer Main
176
177 178
179
Report ID 7945.04 E 2023 0821 Page 3 of 3
Earth Solutions NW, LLC