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<br /> Orange County, NC RFQ 5225 SCS ENGINEERS
<br /> SCS' Construction Engineering Group provides construction engineering services for new lined
<br /> landfills, landfill expansions, closure capping, site improvements, LFG control systems,
<br /> groundwater extraction systems, and other features. Our services range from full-time, on-site
<br /> Resident Engineering, earthwork and geosynthetic observation, documentation and certification
<br /> of construction to periodic observation and testing of individual features. We also serve in the
<br /> capacity of Owner's Representative, assist in negotiations with contractors and issuance of
<br /> change orders, review and comment on shop drawings, contractor pay requests, submittal
<br /> reviews and related administrative functions.
<br /> SCS staff have been involved in construction of conventional Subtitle D liners and alternative
<br /> bottom liners, leachate collection and transmission systems and have experience in inspection
<br /> and testing of geomembrane materials (e.g., HDPE, LDPE, PVC, VFPE and others),
<br /> geocomposite drainage nets, geosynthetic clay liners, bentonite amended soil liners, granular
<br /> drainage layers, as well as LFG extraction wells, groundwater monitoring wells, and many other
<br /> landfill related structures and features.
<br /> SCS conducts mock inspections and operations audits following prescribed regulatory checklists
<br /> and industry standards to evaluate the landfill's daily productivity, costs, and compliance record.
<br /> Preparation of an updated operations manual, stormwater plan, and interim/final grading plan
<br /> may be appropriate during landfill development.
<br /> Exhibit 7 highlights SCS' extensive landfill engineering and construction QA/QC experience
<br /> in the mid-Atlantic region.
<br /> Leachate Collection and Treatment Systems
<br /> SCS staff has been involved in design of leachate collection, recirculation, and treatment systems
<br /> in many regions of the country. SCS has employed various technologies including extended
<br /> aeration, nitrification/denitrification, activated carbon, constructed wetlands, and chemical
<br /> treatment to address site-specific leachate characteristics and site conditions. The selection of a
<br /> treatment approach is dependent on many variables, including site location, leachate quality and
<br /> quantity, availability of utilities, discharge limitations, and environmental regulations. Because
<br /> of variability in leachate quality, treatment approaches must be evaluated on a case by case basis.
<br /> Landfill Closure, Post-Closure Care, and End-Use Planning
<br /> Along with our landfill design and construction services, SCS also understands the long-term
<br /> requirements to properly close a landfill and use it for beneficial purposes; capping, stormwater
<br /> control, LFG, leachate collection and management, re-vegetation, groundwater monitoring,
<br /> mitigation of settlement, etc. Post-closure service areas offered by SCS include the following:
<br /> ✓ Final Cover System Monitoring and Maintenance
<br /> ✓ Surface Water Monitoring and Drainage System Maintenance
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