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UTS Job 23418 Report 42 Soil Inspection Report 08-16-2019-Page 1 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 08-16-2019Soil Inspection Report Report No.42 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 and perform field density test 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 Maximum Field Test Percent Dry Dry Percent Elevation No.Moisture Density Density Compaction Location (Feet) 1 13.5 111.2 96.6 86.9 See Drawing 11.0 2 13.7 111.2 113.8 102.3 See Drawing 12.0 3 13.2 111.2 116.2 104.5 See Drawing 12.0 4 16.2 111.2 112.4 101.1 See Drawing 18.5 5 13.8 111.2 114.4 102.9 See Drawing 17.0 6 10.2 111.2 118.4 106.5 See Drawing 17.0 7 12.0 111.2 117.7 105.8 See Drawing 17.0 8 10.2 111.2 97.2 87.4 See Drawing 14.0 OBSERVATIONS: This report follows a site visit to observe/test the earthwork for: Footing trench excavation. Pavement sub grade filling continued within the NE project limits. The material used is an onsite generated urban fill consisting of F - C gravel and sand, little silt containing various debris such as wood, brick, slag, ash, glass, metal, organics ETC. The material was also recently tested for organic content and was shown to contain 11.3% organic material content. The material was recommended to be amended to achieve a reasonable organic content. The site contractor was directed to use the material to finished sub grade elevation in pavement areas without amendments despite the recommendations of the geotechnical engineer. 12 - 18" thick lifts were placed and graded utilizing the Deere D6 bulldozer. Each lift was compacted utilizing the IR 10 ton drum roller. Some minor rutting and weaving conditions were observed during densification. Installation of drainage utilities was performed at the West side of building 2. The trench was carried down to design elevation utilizing the Deere 380 excavator. CB 11 was installed. The structure Page 2 5 Richardson Lane, Stoneham, MA 02180 781-438-7755 (Voice) 781-438-6216 (Fax) Report Date 08-16-2019Soil Inspection Report Report No.42 Distribution Copy Job Number 23418 Project Halstead Salem Station, 72 Flint Street Salem, MA Contractor Fulcrum Associates was set atop a minimum 12" thick base of ¾" crushed stone. The structure was connected to previously installed DMH 12 using 12" diameter HDPE piping. 18" diameter HDPE piping was also installed from DMH 12 North toward proposed DMH 11. The piping was bedded ¾ up the pipe in ¾" crushed stone. The remaining bedding/backfill material used is imported Structural gravel generally consisting of F - C gravel and sand, trace silt placing. 12 - 18" thick lifts were placed and graded. Some of the more select onsite generated urban fill was used to backfill the lower portion of CB 11. Each lift was compacted employing several 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 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 08-16-2019 Report No.42 Job Number 23418 Project Halstead Salem Station, 72 Flint Street Salem, MAAttachment