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HomeMy WebLinkAbout20180398E003 Renton ES 16 2022-07-20 FR 040 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 5 v.7.20 FIELD REPORT Date Project Name Project No. Report No. 07/20/2022 Renton Elementary School 16 20180398E003 040 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 capillary break, footing drains and sewer line backfill, at the request of Jerry Jr. of CDC. Upon arrival, AESI met with Jerry Jr. of CDC. Capillary Break Observation – Area B A section of capillary break was completed in Area B today as noted in Figure 1 below. The capillary break consisted of clean (no fines) crushed chip rock approximately ¾ inch in diameter. Capillary break completed today in the noted areas appeared consistent with project plans and our recommendations in our opinion. Footing Drain Observation – Area A While on-site, AESI observed footing drain installation around the south edge of Area A as noted in Figure 2 below. The footing drains completed today in the noted areas appeared consistent with project plans and our recommendations in our opinion. On-site Sewer Line Backfill While on-site, we observed that approximately 3’ to 4’ of sewer line backfill, consisting of on-site soils, had been placed between Sanitary Sewers #11 and #3 (Figure 2). The backfill was placed in 1’ to 1.5’ lifts and compacted with a hoepac and vibratory roller. AESI used a density gauge to test the new backfilled sections. 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 the sewer line backfill today to be firm and unyielding and suitable for planned paving. Table 1: Compaction Test Results Test No. Location Approximate Backfill Depth Relative to Existing Ground Surface (ft) Proctor (ASTM D1557) Dry Density (pcf) Moisture % Compaction % Pass/Fail Notes 1 See Figure 2 0 133.5/8.2 132.4 8.4 99 Pass 2 See Figure 2 0 129.9/9.2 126.1 11.0 97 Pass 3 See Figure 2 0 129.9/9.2 125.2 10.0 96 Pass 4 See Figure 2 0 126.9/10.5 120.7 12.5 95 Pass 16 Date Project Name Project No. Report No. 07/20/2022 Renton ES 16 20180398E003 040 Page 2 of 5 FIELD REPORT Figure 1. Sheet S2.02 The location of capillary break observed today in Area B is indicated in red. North is to the right of the figure. 16 Date Project Name Project No. Report No. 07/20/2022 Renton ES 16 20180398E003 040 Page 3 of 5 FIELD REPORT Figure 2. Sheet S2.01 The location of footing drain installation observed today in Area A is indicated in red. North is to the right of the figure. 16 Date Project Name Project No. Report No. 07/20/2022 Renton ES 16 20180398E003 040 Page 4 of 5 FIELD REPORT Figure 3. Sheet C3.2 The observed area of sewer line backfill is indicated in blue. North is to the right of the figure. 1 2 3 4 16 Date Project Name Project No. Report No. 07/20/2022 Renton ES 16 20180398E003 040 Page 5 of 5 FIELD REPORT Photos 1. The area of sewer line backfill observed today.