Waste Management
Paris Landfill, TCEQ Permit No. MSW-1454B
Lamar County, Texas

Overview
Biggs and Mathews has provided professional engineering, hydrogeologic characterizations, and construction phase services at the Paris Landfill located in Lamar County. The professional services provided include permitting, geology and hydrogeology, environmental services, planning, engineering design, and construction  of liners, leachate collection systems, stormwater control facilities, final covers, access roads, and equipment maintenance facilities. The success of these projects are based on solid communication with Waste Management in the decision process for permitting and design approach and establishing construction budgets. The continued professional relationship with Waste Management and Biggs and Mathews demonstrates a professional commitment to the long-term success of the Waste Management’s Paris Landfill.

Permitting
The Biggs and Mathews project team, consisting of the engineer of record, geologist of record, and geotechnical engineer of record, have prepared numerous municipal solid waste permit modifications and a major permit amendment for the Paris Landfill. The permit projects included civil engineering design, geotechnical engineering, and regulatory coordination. The permit modifications have included revisions to excavation grades and leachate collection system, sequence of development, cost estimates for closure and postclosure care, monitoring systems, sampling and analysis plans, site operating plans and surface water management facilities.  The permit amendment provides a major redesign and vertical expansion of the facility.

Environmental Services
Biggs and Mathews provided installation of groundwater monitoring wells and landfill gas probes at the site.  We continue to provide comprehensive environmental services including groundwater sampling, analytical laboratory testing, statistical analysis and reporting.

Planning
Biggs and Mathews provides routine airspace estimates, usage projections and optimization studies, interim fill and grading plans, and erosion control plans for the Paris Landfill.  We also provide evaluations and cost projections for the future development of the waste fill and soil borrow areas.

Engineering Design
Biggs and Mathews has provided engineering design and construction documents for over 30 acres of Subtitle D lined cells at the Paris Landfill.  We have also provided the design and construction documents for site improvements such as internal roads, drainage facilities, and wetland mitigation areas.

Construction Management
Biggs and Mathews has managed the construction of over $5,000,000 of improvements and development at the Paris Landfill.  We supported Waste Management with coordinating bids, selection of the contractors and awarding contracts.  During construction we coordinated with TCEQ, Waste Management, and the contractors as well as reviewed submittals, issued change orders, resolved conflicts during construction, prepared the final construction reports, and administered the construction contracts.

Landfill Gas Services
Biggs and Mathews has provided landfill gas design/construction management services at the Paris Landfill since 2013.  This includes life of site GCCS design and budgeting, design and permitting of GCCS expansions, bidding assistance, construction management, survey, and CQA services during GCCS installations, and preparation of record drawings at the conclusion of each project.  In addition, Biggs and Mathews also assists Waste Management with GCCS troubleshooting and LFG remediation services as necessary at the site.    

Drone Services
Biggs and Mathews has collected drone aerial topography data at the Paris Landfill for the purpose of estimating airspace consumption and waste settlement rates.