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Kirkland | Tacoma | Mount Vernon 425-827-7701| www.aesgeo.com
Date Mailed: Principal / PM: Bruce Guenzler, L.G., L.E.G.
This document is considered a DRAFT until signed or initialed by an AESI Principal or Project Manager
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FIELD REPORT
Date Project Name Project No. Report No.
11/17/2022 Renton Elementary School 16 20180398E003 071
Location Municipality AESI Project Manager AESI Field Rep
1075 Duvall Ave NE Renton Bruce Guenzler, L.E.G. Jackson Lundgren, G.I.T.
Permit No. Client/Owner Attn Requested By
B21004604 Renton School District No. 403 Ed Thomson Contractor
Engineer/Architect General Contractor Grading Contractor Weather
CPL / Hutteball + Oremus Cornerstone/Kyle Continental Dirt Contractors/ Jerry Jr. Sunny, 80’s
THE FOLLOWING WAS NOTED:
Associated Earth Sciences Inc. (AESI) was onsite at 7:00am at the request of the general contractor to observe a proof roll within the
repaired areas of the southern parking lot and adjacent curb subgrades above the StormTech stormwater vault. AESI was also on site
to observe soil conditions and concrete pouring within light pole base excavations along Duvall Avenue NE. While onsite we met with
representatives from both Cornerstone and Continental Dirt Contractors.
Proof Roll:
Upon arrival, AESI observed contractor perform a proof roll with a fully loaded front loader within the areas of repaired subgrade in
the southern parking lot and along adjacent curb subgrades (Fig 1). AESI observed repaired subgrade was dense, firm, unyielding,
and suitable for support of the proposed curbs (Photo 1). AESI recommends proof rolling remaining areas of the southern parking lot
before placement of asphalt treated base to verify remaining areas of the southern parking lot are suitably dense and unyielding.
Light Pole Base Observations
AESI observed contractor continuing to place rebar cages and form boards within the 36 to 48-inch diameter boreholes along Duvall
Avenue NE for light pole bases in preparation for concrete pouring (Photo 2). AESI observed contractor had pumped water from the
boreholes and removed sediment from minor caving near the bottom 2 feet of the boreholes as needed before pouring concrete.
AESI recommended pumping water from the excavations before placement of the rebar cages and concrete if encountered in
remaining light pole basins. Contractor relayed a vacuum truck would be utilized to remove groundwater and sediment sloughed
from the sides of the excavations as needed.
AESI will return for further observations and testing as requested by the client.
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Date Project Name Project No. Report No.
11/17/2022 Renton ES 16 20180398E003 071
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FIELD REPORT
Figure 1: Approximate locations of proof rolled areas
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Date Project Name Project No. Report No.
11/17/2022 Renton ES 16 20180398E003 071
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FIELD REPORT
Photo 1: Proof roll of repaired parking lot subgrade above stormtech vault
Photo 2: Light pole base with rebar cage and formwork in preparation for pouring of concrete