Effective management of leachate and landfill gas is critical for long-term containment and regulatory compliance at waste disposal sites. AST Environmental brings proven expertise in the installation of leachate collection and methane gas extraction systems. From passive venting to full-scale vacuum and treatment setups, AST delivers precision-built systems tailored to site-specific performance requirements.

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Leachate Management Systems for Landfill Integrity

Landfills—especially those with lined cells or engineered caps—must include reliable leachate control systems to manage contaminated liquids produced by waste breakdown. AST installs robust leachate collection networks using:

  • Perforated and solid HDPE pipe (2″–12″ diameters)
  • HDPE sump structures up to 24″ in diameter
  • Engineered drainage stone bedding
  • Toe drains for unlined disposal zones

These systems are essential for preventing groundwater contamination, meeting permitting requirements, and supporting long-term cap stability.

Methane Gas Collection and Control

As buried waste degrades, methane gas is produced. Uncontrolled gas migration can pose explosive, environmental, and odor risks. AST installs passive and active gas management systems, including:

  • Passive vents
  • Vacuum systems for active extraction
  • On-site gas treatment or flaring units
  • HDPE welded piping

Whether on capped industrial sites or active municipal landfills, our systems are built to spec and field-tested for performance.

Our Core Product Line

How It Works BOS 100® is a Trap & Treat® in situ remediation technology specifically designed to degrade chlorinated solvents. It is a unique material manufactured from high grade virgin…
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How It Works BOS 200® is a high-performance, carbon-based amendment specifically designed to treat petroleum hydrocarbons in groundwater and soil. It utilizes a proprietary blend of activated carbon and support…
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How It Works BOS 200+ is a patented in-situ remediation amendment that expands on the proven BOS 200 platform. It enhances performance at challenging petroleum-contaminated sites through advanced sorption, microbial…
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How It Works CAT 100® combines the proven BOS 100® platform with engineered biotechnology to create a next-generation in-situ remedy capable of degrading significantly more contaminant mass per unit dose.…
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How It Works FLUOROSORB is a proprietary, NSF-certified sorbent engineered by CETCO for high-capacity, long-life PFAS adsorption. It works by selectively binding a wide range of PFAS compounds—both long- and…
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How It Works FerroBlack is a family of reactive, abiotic form of ferrous sulfide (FeS) mineral with a “mackinawite” structure. It is formulated in a controlled reactor system which produces…
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AST has delivered successful in-situ remediation at hundreds of sites across the U.S., including:

• EPA Superfund and Brownfield sites
• State Voluntary Remediation Programs (VRPs)
• Military installations
• Private industrial and commercial sites

Our products and strategies are:

✅ Backed by years of field data and peer-reviewed research
✅ Used by top-tier environmental consultants and engineers
✅ Recognized and approved by regulatory agencies nationwide
✅ Supported by performance monitoring and defensible data


"We don’t just sell products — we partner with your team to help design, execute, and document a successful remediation plan."

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We’ve helped consultants, regulators, and site owners across the country achieve cleanup goals faster, safer, and more cost-effectively — and we can do the same for you.

Let’s talk through your site and see if in-situ remediation is a fit.
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