City of San Angelo

San Angelo Landfill, TCEQ Permit No. MSW-79
Tom Green County, Texas 

Overview
City’s consulting engineer for design, permitting, construction, and compliance issues related to its solid waste programs beginning in 2005 including design and construction of an active landfill gas collection system, new cells, and closure of cells.

Permitting

• Permit modifications, including
  • Landfill gas management plan
  • Ground water monitoring plan
  • Site operating plan
  • Site development plan

Construction Documents and Technical Specifications

• Multiple Subtitle D cells, including liner and leachate collection system, final cover system, leachate pumping and transfer system, contaminated stormwater evaporation and storage pond, landfill gas collection and control system
• Final closures
• Other miscellaneous site improvements
• Engineering designs, construction costs estimates, construction plans, and technical specifications, as well as bid and contract documents. 

Construction Management

• Bid phase services
• Construction phase services
  • Conduct construction meetings
  • Review and approve shop drawings, field orders, change orders, construction quantities, pay requests
  • Scheduling
  • Monthly progress reports
• Construction quality assurance
• Constant communication, evaluation and re-design as material costs increased

Geology and Hydrogeology

• A comprehensive geologic and hydrogeologic site characterization to support a Groundwater Remediation Plan that was approved in 2006.  Tasks included:
  • Installation of additional borings and piezometers for aquifer testing and analysis
  • Stratigraphic correlation
  • Determination of hydrogeologic units
  • Contaminant pathway analysis
  • Design of an enhanced Subtitle D groundwater monitoring system
• Permit modifications for the 2006 TCEQ rule revisions to Subchapter J – Groundwater Monitoring and Corrective Action

Environmental Services

• Environmental monitoring and regulatory reporting for groundwater and landfill gas
• Analytical laboratory testing
• Statistical analysis and regulatory reports

Landfill Planning and Engineering Services

• Comprehensive landfill planning services including
  • Certification of closure
  • Preparation of TCEQ required air permits
  • Evaluation of groundwater conditions
  • Preparation of ground survey and airspace calculations

Landfill Gas Services

• Landfill gas design and construction management, including
  • Life of site GCCS design and budgeting
  • Design and permitting of GCCS expansions
  • Bidding assistance and construction management
  • CQA services during GCCS installations
  • Record drawings at the conclusion of each project
  • GCCS troubleshooting and LFG remediation services as needed