2019 113TH PL SE 2017-01-13 - Laserfiche WebLink

I April 21, 2016 ES-3588.01 Polygon Northwest PO Box 1349 Bellevue, Washington 98009 Attention: Mr. Jeff Jacobsen • Earth � Salutions NW«c Earth Solutions NW ��.c • Geotec.hnical Engineering ° Construction Monitoring • Environrnental Sciences Subject: Final Report — Building 2 Construction Monitoring and Consulting Services Silver Lake Center 2015, 2017, 2019, 2021, 2023 & 2025 — 113t" Place Southeast ��r,�F•,R�.; lnr��!�� City of Everett Permits C1411-048, C'i4'11-049, C141'I-050, C1411-050, C1419-051, C1411-052 & C1411-53 Dear Mr. Jacobsen: In accordance with your request, Earth Solutions NW, LLC (ESNW) provided construction monitoring and consulting services at the subject site. Our services included providing onsite observations and testing on a part-time from November 12, 2015 to March 6, 2016. �ur representatives made four site visits to observe and test the building foundation subgrade, structural fili, and confirm subsurFace soil conditions at permeable pavement areas. Our representative observed building foundation subgrade to be dense and suitable for support of the proposed structure. Our representative conducted six field density tests in accordance with ASTM Test Designation D2922 (Nuclear Gauge Method). One representative soi! sample was returned to our laboratory for analysis of the maximum dry density and optimum moisture content in accordance with ASTM D1557-02 {Modified Proctor). Density test results indicate adequate compaction of at least 95 percent at the tested locations of the building slab backfill, Based on our observations and testing, the earthwork construction was accomplished in accordance with the project plans and our geotechnical recommendations. 18i�'i - 136�h Plac:e N.E., Si�ite ?Cl1 •[3ellt�vue, 1NA 9IIU05 °(425't �:49-�k704 • FAX (425) 4�`.)-�1i11