Texoma Solid Waste Authority

Texoma Area Solid Waste Authority (TASWA)
TASWA Solid Waste Disposal and Recycling Facility

TCEQ Permit No. MSW-2290
Grayson County, Texas

Overview
Since 1996, provided engineering design, construction management, environmental compliance services, and geologic and hydrogeology services for the TASWA facility.

Greenfield Permitting

Assisted TASWA member cities during the greenfield site selection process
Began the initial permitting process with intensive site investigations including
- Subsurface conditions
- Potential wetland areas
- Threatened and endangered species
- Floodplains
- Existing surface water features
- Detailed subsurface and groundwater characterization
- Comprehensive evaluation of 100-year water surface elevations
- Drainage design to meet natural drainage patterns.
Section 404 Corps of Engineers Permit

Construction Documents and Technical Specifications

Site entrance facilities and entrance connection to State Highway 56
Initial and subsequent landfill cells (2005, 2008, & 2013) and drainage facilities
Final plans, contract documents, and specifications, engineer’s cost estimates

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
- Daily updates
Construction quality assurance
Constant communication, evaluation and re-design as material costs increased

Geology and Hydrogeology

Comprehensive geologic, hydrogeologic, and groundwater characterizations, including
- Identify and characterize the uppermost aquifer
- Establish groundwater flow direction and rate
- Evaluate potential impacts of facility operation on groundwater flow
- Determine impacts to critical receptors
- Determine the appropriate spacing, locations and screened intervals of groundwater monitoring wells
- Location restriction certifications for fault areas and seismic impact zones
Permit modifications for the 2006 TCEQ rule revisions to Subchapter J – Groundwater Monitoring and Corrective Action

Environmental Services

Installation of the groundwater monitoring wells and landfill gas probes
- Groundwater sampling, landfill gas sampling, surface water monitoring, analytical laboratory testing
- Statistical evaluation
- Regulatory reporting

Landfill Planning and Engineering Services

Periodic ground and aerial surveying to update available airspace, compaction rate, site life projections, and target grades for site development.
Annual MSW report
Planning for operational issues including
- leachate storage and disposal,
- interior roads,
- stormwater and sediment control,
- stockpile locations and utilization,
- and borrow area grading and utilization.

Drone Services