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DocuSign Envelope ID:7ACADO9D-B318-4AD6-B8E5-CB7B9C2A289F
<br /> SCS ENGINEERS
<br /> Landfill Engineering and Groundwater Services
<br /> Design , Permitting and Field Engineering
<br /> Prince William County, VA
<br /> Client SCS has been providing comprehensive landfill engineering
<br /> Prince William County services to Prince William County for well over 20 years. These
<br /> Department of Public Works services range from feasibility studies to design, permitting, gas
<br /> and groundwater monitoring, construction oversight, and field
<br /> Contact maintenance/repair work. Selected example tasks include:
<br /> Tom J. Smith, PE Landfill Permit Modifications. We recently provided Part A
<br /> 703.792.6252 Permit Amendment services to modify the facility boundary due
<br /> Sadhu S. Sandhu
<br /> 703.792.6265 to changes in property limits. Part B Amendment efforts included
<br /> a 115-acre expansion at the existing Sanitary Landfill site. This
<br /> Contract Amount effort included HELP and Multimed modeling of an Alternative
<br /> > i,000,000 in past 2 years Bottom Liner(ABL) to reduce construction costs. The ABL was
<br /> permitted and consists of two layers of 60-mil HDPE
<br /> Dates geomembranes with a geocomposite clay(GCL) layer in
<br /> 1994 to 2005 between. Landfill phasing plans were also included in the permit
<br /> Key Personnel application.
<br /> Paul Mandeville, PE Construction Bid Documents. We prepared construction design
<br /> Bob Isenberg, PE,CPG plans, specifications and bid documents for three cells, covering
<br /> Denise Wessels, PE nearly 25 acres that utilized an ABL, as well as overfills on the
<br /> existing landfill, collection pipes at the cell bottom along with
<br /> perimeter HDPE leachate collection manholes, and a leachate
<br /> pump station.
<br /> i '' ' � ' ,'111, 1^ Construction Engineering was provided during construction of
<br /> 1 $4 Phase I, Parts 2, 3 and 4, and Phase II, Cell A This work included
<br /> I „ III bid assistance, contract addenda, bid review, recommendations
<br /> III, 11011111110i regarding award, review of contractor submittals, resident
<br /> 1 ,11 :_ .... - engineering, quality assurance inspection, testing, and
<br /> — documentation, engineering support, and preparation of a
<br /> el //f //674,7, two!,ly)1 certification report for submittal to the VDEQ. Construction also
<br /> r ��Gl� �� system providing
<br /> �"%il!� i�/��%%���%���1�1� included an active LFG collection s stem rovidin fuel to a
<br /> power plant.
<br /> � 1' '''41'11 ' Landfill Stabilization for Recreational/Athletic Field. SCS
<br /> I assisted the Prince William County Division of Solid Waste and
<br /> "0 the Department of Park & Planning in stabilizing and re-
<br /> �� r,, , � developing the closed "Ballfield Landfill" area for re-use as a
<br /> recreational/athletic field. Since a decade ago when four Little
<br /> ,x.14' League baseball fields and associated features were built over the
<br /> landfill footprint, on-going and significant differential settlement
<br /> has resulted in drainage problems, ponding of water, and distress
<br /> and distortion to the dugouts, fences and scoreboards and other
<br /> site features. Maintenance has been performed over the years,
<br /> but the settlement problems have persisted, causing two fields to
<br /> Project Profile
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