7007 SEAWAY BLVD 2016-01-01 MF Import

Mr.Bill Way July 25, 1996 Most of the ;,ite was open and covered with wild grazsa. Deciduous h �s lined the site's southem margin adjacent to the northem edge of Nazbeck Swamp. We abserved large concrete slabs on the ground surfar.e in the vicinity of Test Pit TP-103. SubsurCace The test pits showed fill soils comprised oCsilty fine to medium-grained sand with grave(and cobbles to depths ranging between three feeiin Test Pit TP-]03 and nine feet in Test Pit TP-3 (September 27, 1994). Most of the fill appeared to consist of reworked glacial till soils. The filt wu medium derse to very dense. The fill was underlain by native weathercd and unweathered glaciat till soils comprised mostly oCbrown to gcay, silty, fine to medium-gcained sand with gravel and cobbles. We noted fina-grained tiil consisting of sand}•silt with few gravel inclusions in Test Pit TP-]03. The till soils were medium dense to very dense. We observed organic silty sand or peat layers in :est Pits TP-1 tivough TP-3, and TP-]04. The layecs occurred at depths ranging from 3.5 to 9 feet The layers werc genecally no more than six inches thick. An 18-inch thick layer of fill consisting of organic silty sand with buried wood was noted u a depth of 5.5 feet in Test Pit TP-104. In September 1994, groundwater seepage was observed at a depth of nin� Feet during excavation af Test Pit TP-3. No groundwater seepage waz noted in the other test pitt at thet time or in the curtent test pits. Detailed descriptions of the soils encountend during our recent investigation are presented on the Tat Pit Logs, Figures 3 end 4. The locations of the test pits are shown on the Exploration Location Plan, Figurc 2. The ground surface eleva[ions shown on the Test Pit Logs are interpreted from topography shown on the prcliminary grading plan. We perfortned grain size analyses on three sampla. The results of the grain siu ar,^.!yses are presented on Figurcs 5 and 6. � DISCUSSiOIV AND RECOMMENDATIONS General The results of our investigation indicate the site is generally underlain by competent fill soils. We , believe that these soils, or compacted swctural fill placed on these soils, will provide suitable suppon for the paved areas and park facility structures. We anticipate that stable pond slope faca above sWrcd water levels can be achieved by grading to inclinations no steeper than 2:1. Pond slopes below stored , water levels should be protected with riprap rock or graded to a shallower angle. Project No.T-2736-1 Page No. 3