Landfill Expansion
Phase IV Design
Advanced geotechnical engineering, deep injection infrastructure, and environmental permitting for the Broward County waste management system.
Strategic Alignment
SCS Engineers provides a unique advantage by integrating existing site familiarity with next-generation landfill technologies. Our approach ensures that Cell 4 is not just an expansion, but an optimization of current leachate management and air quality systems.
"The Deep Injection Well (DIW) is essentially a super-deep disposal system that puts treated liquid waste (leachate) thousands of feet below the drinking water supply into the 'Boulder Zone,' preventing surface contamination."
Proposed Scope of Services
Preliminary & Final Design Phase
- Site Optimization Analysis: Evaluation of current footprint vs. vertical expansion limits to maximize airspace volume for Cell 4 and adjacent storage areas.
- Geotechnical Subsurface Investigation: Extensive soil boring programs and cone penetrometer testing to determine load-bearing capacities for the new Class I liner system.
- Liner System Engineering: Design of a high-density polyethylene (HDPE) double-liner system, including geocomposite drainage layers and protective soil covers.
- Stormwater Management Modeling: Updated hydrologic modeling using ICPR to ensure Phase IV integrates seamlessly into the existing county-wide drainage master plan.
"ICPR (Interconnected Channel and Pond Routing) is the gold-standard software engineers use to simulate how rain moves through a site. It ensures the new expansion won't cause flooding in neighboring areas during a 100-year storm."
Environmental Permitting & Regulatory Coordination
- FDEP Substantial Modification: Lead the application for the Class I/III landfill operation and construction permits.
- Title V Air Operation Permit: Negotiation and renewal of Title V permits including the Greenhouse Gas (GHG) monitoring plan and NSPS reporting.
- ERP Compliance: Securing the Environmental Resource Permit for wetland impacts and surface water management system modifications.
"Class I landfills take everyday household garbage. Class III are for 'cleaner' debris like yard waste or construction materials. Phase IV handles both."
"Title V is a major federal permit for large pollution sources. NSPS (New Source Performance Standards) are the strict rules that dictate how much 'landfill gas' we must capture to protect the ozone."
Construction Administration & CQA
- Full-Time CQA Monitoring: On-site engineering oversight during the critical liner deployment phase.
- Hydrogeological Testing: Performance monitoring of the DIW drilling operation, including geophysical logging.
- Certification of Construction Completion: Preparation of the final engineer’s report for FDEP approval.
"CQA (Construction Quality Assurance) is basically a high-stakes inspection. If a single seam in that plastic liner isn't welded perfectly, the whole project could leak. SCS acts as the County's 'eyes and ears' to prevent that."