2725 32ND AVE NE 2018-01-02 MF Import

FIELD REPORT Associated Earth Sciences, Inc. .-M 14 4�1 911 Fifth Avenue Kirkland, Washington 98033 425-827-7701 FAX 827-5,124 TO: Pacific Ttgmsoils Inc __ 805 8o"' Street SW Everett WA 98203 A'fTN: 3anusz Boiisarowicz AS REQUESTED BY Client 971E FOLLOWING WAS NOTED: Pape I oft note Project Nam, Project No. 9/l/ll Smith Island 10-Acre Nh.0901691I Location weather Smith Island Overcast 60's Muldcip lily. Report Numbrr Snohomish County 62 Engineer/Architect Parametri:: Client/goner Pacific To soils Inc General Contractor/Superintendent Pacific Topsoils Incfllioni s Grading C.antrnctnr/Superintendent Pacific Topealls Inc/Thomas and Roger .AESI on site part time, as requested by the client, to monitor construction progress of Pacific Topsoil's'Smith Island" project. Mass Gradlne Trending generally west to cast, the earthwork contractor continued mass grading processes over the project's former sludge disposal area near the south end of Pacific Topsoil's Smith Island Facility. Utilizing a large dozer (D6), the contractor aerated, respread, and compacted opproximatcly.5' of recently stockpiled import soils from a construction site in Mercer Island. The import material (bluish gray to dark gray silty fine SAND with trace gravel) was cumpacted in a series of pusses via large vibratory roller and proved firm/unyielding with average penetrations of 2". AESI conducted a series of in place density tests on the proposed impermeable cap area to confirm the specified compaction (95% ASTM 1557). The contractor was notified of all density results listed below. Additionally, AESI noted the contractor had compacted previously spread "protective layer' soils near the north central portion of the site. The soil (brown silty sand with gravel and trace delirious debris) was placed in a series of 8.12" loose lifts and compacted in a series of passes with a large vibratory roller. The compacted material was observed to be unyielding under the wheel weight of truck/trailer assemblies and firm with corresponding T-probe depths of 2". The 18" protective layer will continue to be performance evaluated as no compaction specification for the material is required. Sec figure I for specific task locution. Test # Location Depth ft below cap) % Moist Dry D Max Or D %Max PIF ti See figure 1 5 10 119.6 125.6 95 P t2 See figure 1 5 9.4 120.3 125.E 96 P t3 See figure 1 5 9.9 120.1 125.6 96 P t4 See figure 1 .5 10.2 119.7 125.6 95 P t5 See fi ure 1 -.5 10.5 118.9 125.6 95 P l6 See figure 1 .5 9.7 119.9 125.6 95 P t7 See figure 1 1 -.5 9.9 121.6 125.6 97 1 P COPIES TO: Disu-ibution DATE MAIL°D: FIELD REP.: Jon D. Hansen, Sr Staff Geologist SEP 23 2011 PRINCIPAL !PM: Jon Sondergatud, P.E.G AA