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UTS Job 23418 Report 57 Soil Inspection Report 09-23-2019 Page 1 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 09-23-2019Soil Inspection Report Report No.57 Distribution Copy Job Number 23418 Project Halstead Salem Station, 72 Flint Street Salem, MA Contractor Fulcrum Associates WEATHER:Partly cloudy 60-70° TIME:7:00 AM CONTACT:Bob Levesque of Fulcrum Associates PURPOSE:Observe earthwork construction EQUIPMENT:Deere 450C, 380G, 75G & 992E Excavator, Wacker DPU 6555 & 200Lb. Plate Compactors, CAT 980 & 950 Loaders & IR Pro Pac 110 Series 10 ton Drum Roller TEST METHOD:Sand Cone Nuclear Densometer TITLE:Inspector Staff Engineer EngineerX OBSERVATIONS: This report follows a site visit to observe/test the earthwork for: Footing trench excavation. Pavement sub grading continued @ the west side of building 2. Minor cuts were made to the south half of the lot and pushed to landscape areas @ the north. The material is onsite urban fill generally consisting of F - C sand and gravel, little silt with slag, ash, wood brick, metal etc. A pocket of unstable soil was identified during trafficking with the site dump truck. The wet/unstable material was removed to an approximate depth of 5 - 6' below design finished grade elevation. The sub grade is still wet urban fill containing wood, organics, leather, clay, ash, slag, etc. A 6 - 12" thick layer of crushed stone was placed at the bottom of the excavation due to the wet sub grade conditions. A layer of geogrid was placed over the stone followed by dry onsite generated common fill. The onsite material was placed in 18" thick lifts and compacted utilizing the IR drum roller exhibiting stable/firm conditions. Work in this area was ongoing upon the time of departure. Installation of electrical utilities was performed @ the west and south sides of building 2. Conduit for site lighting and temporary electric to the building was installed. The shallow trench was excavated utilizing the Deere 75 mini excavator. The pvc conduit was installed and bedded in clean imported sand. Utility indicating tape was used as necessary. Due to the shallow depth of the utility, typically only a single 8 - 18" thick lift of backfill material was required at this point. Foundation backfilling was performed for recently cast footings within the Northern limits of building 1. The material used for interior foundation backfill is onsite crushed structural consisting of F - C gravel, some sand, trace silt. The exterior foundation backfill material used is also coarse gravel with varying amounts of onsite generated common fill blended throughout. A single 16" thick lift Page 2 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 09-23-2019Soil Inspection Report Report No.57 Distribution Copy Job Number 23418 Project Halstead Salem Station, 72 Flint Street Salem, MA Contractor Fulcrum Associates was placed and graded. The fill was compacted utilizing the Wacker plate compactor exhibiting stable/firm conditions. Inspector Premium Travel Name Time Hours Time M. Chace No 8.00 1 Hr(s) REVIEWED BY: Chuck Fraser Our reports are available in PDF form via email. Please email us at reports@utsofmass.com for more information. cc:Fulcrum Associates Bob Levesque Fulcrum Associates Brad Scott Fulcrum Associates Darrin Standish DMS Design Sid Silveira DMS Design Dan Skolski City of Salem Steve Cummings Veitas & Veitas Linas Dabrila DSF Group Paul Bowie DSF Group Benjamin Greene Fulcrum Group Patricia Dwyer UTS Matt Chace DSF Flint Salem LLC Dimitri Kourtis UTS of Massachusetts, Inc. Page 3 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 09-23-2019 Report No.57 Job Number 23418 Project Halstead Salem Station, 72 Flint Stree Salem, MAAttachment