HomeMy WebLinkAbout20180398E003_Renton_ES_16_2022-09-26_FR_065
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
Page 1 of 4
v.7.20
FIELD REPORT
Date Project Name Project No. Report No.
09/26/2022 Renton Elementary School 16 20180398E003 065
Location Municipality AESI Project Manager AESI Field Rep
1075 Duvall Ave NE Renton Bruce Guenzler, L.E.G. Samantha Parker
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 on-site in the morning for observation of Stormwater Detention Facility 2 progress and
footing subgrade, at the request of Jerry Jr. of CDC.
Stormwater Detention Facility 2
While on-site, AESI observed progress on Stormwater Detention Facility 2. The placement of stormwater chambers and top 1’ of
clean crushed aggregate over the chambers was complete. The installation of separation filter fabric over the top 1’ of aggregate
was also complete. We observed that approximately 2’ to 3.5’ of backfill was being placed, trending deeper towards the SE corner of
the Facility. The backfill consisted of moisture conditioned on site soils and compacted with a large single drum vibratory roller. AESI
used a density gauge to test the newly placed backfill. Test results met or exceeded 95% compaction (Table 1). In our opinion, based
on our observations and test results, we found the observed area of backfill to be firm and unyielding and suitable for support of
planned multi-use field and hard surface play area. See Figure 1 for location of observed area today.
Table 1: Compaction Test Results
Test
No. Location
Approximate Backfill
Depth Relative to Final
Grade (Feet)
Proctor
(ASTM
D1557)
Dry
Density
(pcf)
Moisture
%
Compaction
% Pass/Fail Notes
1 See Figure 1 0 126.9/10.5 123.0 8.5 97 Pass
2 See Figure 1 0 126.9/10.5 121.9 9.8 96 Pass
3 See Figure 1 0 126.9/10.5 120.5 8.1 95 Pass
4 See Figure 1 0 126.9/10.5 122.4 8.5 96 Pass
5 See Figure 1 0 126.9/10.5 121.4 7.0 96 Pass
6 See Figure 1 0 126.9/10.5 121.1 6.8 95 Pass
7 See Figure 1 0 129.9/9.2 125.8 5.6 97 Pass
8 See Figure 1 0 129.9/9.2 122.8 6.0 95 Pass
9 See Figure 1 0 129.9/9.2 124.0 6.3 95 Pass
10 See Figure 1 0 129.9/9.2 124.7 5.9 96 Pass
11 See Figure 1 0 129.9/9.2 128.6 5.5 99 Pass
12 See Figure 1 0 129.9/9.2 125.0 6.5 96 Pass
Footing Subgrade
While onsite, AESI observed an area of footing subgrade that had been prepared near building Area B. AESI used a ½ inch diameter
steel soils T-probe to assess the subgrade conditions. Generally, the area probed between 2 to 4 inches under full body weight. In
our opinion, based on our observations we found the area of subgrade observed today to be firm and unyielding and suitable for
support of the planned fuel tank. See Figure 2 for location of observed area today.
16
Date Project Name Project No. Report No.
09/26/2022 Renton ES 16 20180398E003 065
Page 2 of 4
FIELD REPORT
Figure 1. Sheet C2.0 The observed area of backfill over Stormwater Detention Facility #2 is indicated in blue. North is to
the right of the figure.
1
2
3
4
5
6
7
8
9
10
11
12
16
Date Project Name Project No. Report No.
09/26/2022 Renton ES 16 20180398E003 065
Page 3 of 4
FIELD REPORT
Figure 2. Sheet C3.3 shown with observed footing subgrade indicated in red. North is to the right of the figure.
16
Date Project Name Project No. Report No.
09/26/2022 Renton ES 16 20180398E003 065
Page 4 of 4
FIELD REPORT
Photo 1. Footing subgrade observed today.