Introduction

Hinterland Group Inc. specializes in EcoLiner CIPP (Cured-In-Place Pipe) lining systems for pipelines ranging from 4" to 108" in diameter. Utilizing advanced, styrene-encapsulated CIPP technology, Hinterland offers minimally disruptive, long-life solutions to municipalities, property managers, industrial operations, and commercial clients across the southeastern United States. Learn more about our CIPP services.

What is Eco

Liner CIPP Lining?

EcoLiner is an innovative cured-in-place pipe (CIPP) liner using advanced materials, including styrene encapsulation, to rehabilitate existing pipes without full excavation. The technology is available for pipe diameters as small as 4 inches and as large as 108 inches, making it suitable for nearly all common municipal, industrial, and commercial pipeline applications.

Key process steps include:

Inspection and cleaning of the pipeline
Inserting a flexible liner impregnated with resin (styrene-encapsulated)
Inflating the liner and curing it in place (steam, water, or UV-cured)
Restoring or re-instituting lateral/service connections as needed
Final inspection and commissioning

Features & Specifications

Pipe Diameter Range: 4" to 108"
Application: Gravity sewer, force main, stormwater, potable water lines (depending on specifications)
Curing Method: Hot water, steam, or ultraviolet (UV)—project dependent
Liner Material: Felt or composite tube infused with styrene-encapsulated resin
Structural Integrity: Restores or exceeds original pipe strength in most applications
Installer: Hinterland Group Inc. (fully in-house operations)

Use Cases

Municipal Infrastructure

Aging gravity sewer or stormwater mains
Large-diameter culverts under roads and highways
Emergency response to major infrastructure failure (e.g., flooding, collapse)

Industrial Facilities

Process wastewater lines in food processing, chemical, or manufacturing plants
Large-diameter stormwater or sanitary connections
Areas requiring extensive corrosion resistance

Commercial/Property Management

Condo, HOA, and business park sewer and stormwater lines
Critical drainage features under parking lots and roadways
Pipe sections inaccessible to open-trench repair

Airports & Transportation Infrastructure

Runway/drainage culverts
Storm/sewer under active airport zones (minimal service disruption)

For more on project types, see markets we serve.

Service Life & Performance

EcoLiner CIPP systems are designed to extend the functional lifespan of pipelines by several decades with minimal maintenance. Typical design expectations include:

Expected Service Life: 50+ years (when properly specified and maintained)
Corrosion Resistance: The styrene-encapsulated resin system protects against H2S, acids, and other aggressive environments typically encountered in sewer, force main, or industrial lines
Watertightness: Fully structural and watertight, prevents exfiltration/infiltration per ASTM F1216 standards
Minimal Disruption: Projects are completed with minimal surface disturbance, preserving landscaping, roadways, and utilities

For further detail, see cured-in-place pipe standards (ASTM F1216).

Flow Impact Analysis

Internal Diameter (ID) Reduction & Flow Rate

Typical CIPP Installation: Adds a new internal liner 0.25–1.0 inches thick (depending on diameter and design)
Resulting Reduction: Slight, 2–10% internal diameter decrease
Flow Offset: CIPP liner's smoother surface (lower Manning's n) often IMPROVES flow rates vs. aged host pipes, offsetting minor loss in diameter.

Condition	Host Pipe (old)	Post-CIPP Liner
Surface Roughness (n)	0.015 – 0.017	0.010 – 0.012
Typical Flow Capacity	↓ (reduced)	↑ or stable
Infiltration/Exfiltration	Likely	Eliminated

Net Outcome: Aging pipes often experience flow restriction from tuberculation, sediment, or surface roughness. CIPP lining removes these impediments and restores or improves flow, typically resulting in a net equal or increased hydraulic capacity post-lining (ASTM F1216 FAQ).

Advantages vs. Traditional Methods

Attribute	EcoLiner CIPP (4–108”)	Open-Trench Replacement
Excavation Required	NO (minimal)	YES (extensive)
Service Disruption	Minimal	Significant
Installation Time	Rapid (days)	Lengthy (weeks/months)
Surface Restoration	Not required (except access)	Full restoration needed
Environmental Impact	Low	High
Long-Term Performance	50+ years	50+ years (depends)
Cost	Lower (usually)	Higher

Notable Hinterland Group Projects (CIPP, 4–108”)

Emergency 108" liner installation, West Palm Beach – protected thousands of residents during catastrophic flooding
Large-diameter stormwater rehabilitation, Manatee & Charlotte Counties, FL
Complex municipal contracts for 4"–36" gravity lines and associated laterals in Palm Beach, Polk, Clay, and Martin Counties
See more case studies

The Hinterland Group Difference

All-In-House Capabilities: No subcontracting—full control of quality, safety, and project delivery (About)
Trained/Safety-Focused Personnel: OSHA Certified Instructor on staff, EMR <0.87
Rapid Response: 24/7 emergency availability, documented <24-hour mobilization throughout the Southeast
Advanced Inspection & Assessment: Pre- and post-installation CCTV and robotic inspection
PRIME Client Approach: Comprehensive assessment, rehabilitation, ongoing maintenance, and continued lifecycle support

Typical Project Flow

Initial inspection and evaluation—CCTV, cleaning, risk assessment
Liner specification/design (thickness, resin type)
Bypass pumping, if needed (to maintain service)
Liner installation and curing
Lateral reinstatement (robotic cutting if required)
Final inspection and reporting

Who Should Specify Eco

Liner CIPP?

Municipal engineers needing structural rehabilitation of underground infrastructure in traffic-sensitive or built-up areas
Facility/maintenance managers facing aging storm/sewer lines under parking lots, roadways, or buildings
Industrial plant operators requiring corrosion-resistant, non-disruptive upgrades
Transportation and airport operators seeking drainage and sanitary system upgrades with minimal downtime
Property and asset managers aiming to maximize asset life and value with least long-term cost

Contact Hinterland Group to discuss your next rehabilitation project or request a consultation.

FAQs

What types of pipelines can be lined with Eco

Liner CIPP (4–108”)?

Gravity sanitary sewers
Stormwater lines
Force mains (subject to detailed design)
Industrial/process water pipes

Does Eco

Liner CIPP require excavation?

No, except at access points (manholes, valves, or entry pits). Mainlines are lined without trenching the full route.

How are service laterals or connections handled?

Lateral cut-outs are robotically reinstated post-cure. Sewer laterals can be reconnected with minimal service interruption.

How long does a typical project last?

Most installations complete in 1–3 days per segment, depending on length and site factors. Full project time varies by scope.

What is the environmental impact of Eco