Pennsylvania’s industrial history and active extractive industries create a geomembrane liner demand profile unlike any other state in the mid-Atlantic. Coal ash impoundment closure under the EPA CCR Rule, Marcellus Shale wastewater containment, acid mine drainage (AMD) treatment pond construction in the western coalfields, and heavy manufacturing secondary containment in Pittsburgh and the Lehigh Valley all require engineered liner systems installed to exacting PA DEP standards. ICS brings to Pennsylvania the technical depth, quality assurance documentation, and material range to serve engineers, EPC contractors, and facility managers across the full spectrum of these applications.
Coal Ash Impoundment Closure Under EPA CCR Rule and PA DEP Chapter 287
Pennsylvania hosts more than 13 coal ash surface impoundments subject to closure obligations under the federal EPA CCR Rule (40 CFR Part 257) and PA DEP’s residual waste regulations at Chapter 287 of the Pennsylvania Code. Utilities and independent power producers facing EPA CCR compliance deadlines must either retrofit impoundments with engineered liner systems or close them with an approved cap and closure plan. ICS installs HDPE and composite liner systems for both closure cap construction and retrofit liner installation, providing the CQA documentation packages required by the CCR Rule’s groundwater monitoring and structural integrity requirements.
Cap systems on Pennsylvania coal ash impoundments typically involve HDPE or LLDPE geomembrane, a drainage layer, and vegetated topsoil. ICS coordinates liner installation with earthwork contractors and drainage aggregate placement, and provides weld testing documentation (ASTM D6392 destructive, ASTM D4437 nondestructive) at frequencies required under the project CQA plan. PA DEP Chapter 287 residual waste closure requirements layer additional state-specific CQA documentation obligations on top of federal CCR requirements — ICS is familiar with both regulatory frameworks.
Marcellus Shale Wastewater Containment Ponds
Natural gas production from the Marcellus Shale formation generates large volumes of produced water and flowback fluid that must be stored, treated, or disposed. Lined impoundments at or near well pad sites serve as temporary storage for produced water prior to transport for treatment or disposal. PA DEP regulates these impoundments under Chapter 78 (oil and gas) and requires liner systems with demonstrated impermeability. ICS installs HDPE liner systems for Marcellus-related produced water impoundments, including sites with irregular terrain and compressed construction timelines typical of oil and gas operations. Liner thickness and seam spacing are designed to accommodate the chemical characteristics of Marcellus produced water, including high TDS, chlorides, and naturally occurring radioactive material (NORM) considerations.
Acid Mine Drainage (AMD) Treatment Pond Liners — Western Pennsylvania
Legacy coal mining in western Pennsylvania has left an extensive network of mine drainage discharges that require active treatment. AMD treatment systems — including settling ponds, aeration basins, and sludge storage impoundments — rely on geomembrane liner systems to contain treatment water and prevent infiltration into underlying groundwater. ICS installs HDPE and LLDPE liner systems for AMD treatment pond construction and rehabilitation throughout the western Pennsylvania coalfields, including projects in Cambria, Clearfield, Jefferson, and Armstrong counties. AMD liner projects frequently involve challenging site access, steep embankments, and the need to work around active discharge points — conditions that ICS plans for in project logistics and panel deployment sequencing.
Municipal Solid Waste Landfill Liner and Cap Systems
Pennsylvania municipal solid waste landfills are regulated under PA DEP Chapter 273, which requires composite liner systems for new cells and engineered final cover systems for closed areas. ICS installs both composite bottom liner systems — including HDPE geomembrane over compacted soil or GCL — and final cap systems meeting Chapter 273 specifications. CQA documentation for Pennsylvania MSW landfill liner work includes material conformance testing, weld testing logs, and a final CQA report reviewed by the project engineer and submitted to PA DEP as part of the permit-required documentation package.
Industrial Secondary Containment — Pittsburgh and Lehigh Valley
Pennsylvania’s heavy manufacturing base — including steel, chemical processing, automotive, and specialty manufacturing — creates substantial demand for secondary containment liner systems at operating industrial facilities. PA DEP secondary containment regulations and EPA SPCC requirements (40 CFR Part 112) mandate containment sizing and liner integrity standards for above-ground storage tanks and chemical handling areas. ICS installs secondary containment liner systems using HDPE, PVC, and XR-5 geomembranes selected for compatibility with the specific chemicals handled at each facility. Pittsburgh-area and Lehigh Valley facilities benefit from ICS’s proximity — ICS is headquartered in the Baltimore-Maryland area and can mobilize quickly to Pennsylvania projects.
ICS Geomembrane Services Available in Pennsylvania
- HDPE, LLDPE, PVC, XR-5, and RPP geomembrane liner installation
- Coal ash impoundment closure cap installation under EPA CCR Rule and PA DEP Chapter 287
- Marcellus Shale produced water containment pond liner systems
- Acid mine drainage treatment pond liner installation and rehabilitation
- Municipal solid waste landfill liner and final cap systems under PA DEP Chapter 273
- Industrial secondary containment liner systems under EPA SPCC and PA DEP requirements
- Hot wedge and extrusion liner welding with ASTM-compliant weld testing
- Custom panel fabrication and AutoCAD-based quantity takeoff
- CQA documentation packages for PA DEP and EPA regulatory submittals
- Liner inspection, repair, and leak location services
Areas Served in Pennsylvania
ICS serves geomembrane liner installation projects throughout Pennsylvania, including Pittsburgh and the western coalfields, Philadelphia and the Delaware Valley, Allentown and the Lehigh Valley, Harrisburg and the Capital Region, Scranton and northeastern Pennsylvania, and the north-central Marcellus Shale production region. ICS’s Maryland headquarters provides efficient mobilization to all Pennsylvania project sites.
For project inquiries, contact ICS at 667-290-4153 or visit the contact page.
Frequently Asked Questions — Geomembrane Liner Installation in Pennsylvania
What are the liner requirements for coal ash impoundment closure in Pennsylvania?
Pennsylvania coal ash impoundments regulated as residual waste under PA DEP Chapter 287 must have closure plans approved by PA DEP, which typically include a final cover system with an HDPE or composite geomembrane, drainage layer, and vegetative cover. Facilities subject to the federal EPA CCR Rule (40 CFR Part 257) must also meet CCR-specific closure requirements, including groundwater monitoring, structural stability assessment, and a certified CQA plan for cap construction. ICS provides cap liner installation and CQA documentation that satisfies both state and federal requirements.
Can ICS install liner systems at Marcellus Shale well pad impoundments?
Yes. ICS installs HDPE liner systems for produced water and flowback fluid containment impoundments at or near Marcellus Shale well pad sites. These projects typically require rapid mobilization, remote site access, and liner systems that perform under high-TDS produced water chemistry. ICS coordinates with the pad operator and earthwork contractor to sequence liner installation within the overall well pad construction schedule.
What liner thickness is typically specified for Pennsylvania coal ash cap systems?
Most Pennsylvania coal ash cap projects specify 40 mil or 60 mil HDPE geomembrane for the barrier layer of the final cover system. The specific thickness is determined by the project design engineer based on EPA CCR Rule requirements, site-specific slope stability analysis, and anticipated settlement. ICS installs liner at the specified thickness and provides material conformance data from the manufacturer as part of the CQA package.
Does ICS provide AMD pond liner repair and rehabilitation services?
Yes. In addition to new pond liner installation, ICS provides inspection, leak location, and repair services for existing AMD treatment pond liner systems. AMD treatment ponds operate in low-pH, chemically aggressive environments that can degrade liner systems over time, particularly at penetrations and anchor trench connections. ICS performs visual inspection, vacuum box testing, and spark testing to locate leaks, and provides extrusion weld repairs or liner panel replacement as needed.
How does PA DEP Chapter 273 differ from EPA Subtitle D liner requirements for MSW landfills?
EPA Subtitle D establishes a minimum composite liner standard (2 feet of recompacted clay or equivalent plus geomembrane) for municipal solid waste landfill bottom liner systems. PA DEP Chapter 273 generally mirrors Subtitle D but includes additional state-specific requirements for liner seam testing frequency, CQA report content, and permit documentation. ICS is familiar with both sets of requirements and structures its CQA documentation program to satisfy Chapter 273 submittals while also meeting Subtitle D standards.