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UTS Job 23418 Report 20 Soil Inspection Report 07-30-2019 Page 1 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 07-30-2019Soil Inspection Report Report No.20 Distribution Copy Job Number 23418 Project Halstead Salem Station, 72 Flint Street Salem, MA Contractor Fulcrum Associates WEATHER:Partly cloudy 70-80° TIME:7:00 AM CONTACT:Bob Levesque of Fulcrum Associates PURPOSE:Observe earthwork construction EQUIPMENT:Deere 450C, 380G, 75G & 992E Excavators; Wacker DPU 6555 & 200Lb. Plate Compactors, CAT 980 & 950 Loaders, and Ingersoll Rand 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. Footing excavation continued for isolated interior footings within the Southern limits of proposed building #2 (see sketch). The trench was excavated to design elevation utilizing the CAT 80 excavator equipped with a flat cutting edge to minimize sub grade disturbance. Ground improvements were recently completed in this area by installing GCC deep foundation elements. The area was over excavated a minimum of 6" below design BOF elevation to provide a cushion/base of material between the elements and the footing. All GCC elements were carefully located and exposed during excavation. The elements were lowered using a jackhammer to achieve the required base thickness. The sub grade soil in this area is either urban fill containing slag, ash, gravel, sand, wood, brick, organic silt and various other debris or tannin bark. The sub grade was dry and firm. A 6" - 10" thick layer of 3/4" crushed stone was placed at each location. A layer of filter fabric was placed between the crushed stone and sub grade material. The crushed stone base was compacted employing several passes of coverage utilizing the heavy plate compactor exhibiting stable/firm conditions. Installation of sewer utilities was performed at the Flint Street entrance existing sewer manhole #1 connection. The trench was carried down to design elevation utilizing the Deere 380 and 80C excavators. 8" diameter SDR 35 piping was installed from existing manhole 1 east toward proposed manhole 4. De watering was performed as necessary. The piping was bedded in ¾" crushed stone. The trench was backfilled using imported 2" minus processed gravel consisting of F - C gravel and sand, trace silt. 12 - 18" thick lifts were placed and graded. Each lift was compacted employing several Page 2 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 07-30-2019Soil Inspection Report Report No.20 Distribution Copy Job Number 23418 Project Halstead Salem Station, 72 Flint Street Salem, MA Contractor Fulcrum Associates passes of coverage utilizing the heavy 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 Riley Bourque UTS Matt Chace UTS of Massachusetts, Inc. Page 3 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 07-30-2019 Report No.20 Job Number 23418 Project Halstead Salem Station, 72 Flint Stree Salem, MAAttachment UTS of Massachusetts, Inc. Page 4 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 07-30-2019 Report No.20 Job Number 23418 Project Halstead Salem Station, 72 Flint Stree Salem, MAAttachment