Lead Line Replacement Guide: Best Practices for Sewer and Water Contractors in Illinois

Replacing lead service lines is a major priority for municipalities and contractors across Illinois as aging infrastructure and new regulations drive demand for safer water systems. As a trusted sewer and water supplier, A&A Equipment and Supply is here to support contractors with the right materials, tools, and technical guidance to execute lead line replacement projects efficiently and safely.

Why Lead Line Replacement Matters

Lead pipes were commonly used in water service lines until the 1980s. Even low levels of lead in drinking water can be hazardous to human health, especially for children. The EPA and Illinois Environmental Protection Agency (IEPA) now mandate the removal and replacement of these lines, especially in older communities like Chicago, Cicero, and Maywood.

The Lead Service Line Replacement and Notification Act (LSLRN) in Illinois requires water systems to develop and implement comprehensive lead line replacement plans. This presents a significant opportunity for contractors with the expertise and supplies to tackle these critical infrastructure upgrades.

Materials Needed for Lead Line Replacement

When preparing for a lead line replacement job, contractors should be equipped with the following sewer and water construction supplies:

• Copper or HDPE service pipe – Lead lines are replaced with Type K copper or HDPE depending on local regulations and ground conditions.

• Curb stops and service fittings – Brass compression fittings, couplings, and tees designed for compatibility with copper or HDPE.

• Corporation stops – Tap connections from the main to the service line, typically in brass or stainless steel.

• Meter pits and vaults – Where applicable, access points for meter installations and long-term service.

• Underground utility locating equipment – Essential to avoid cross bores and damage to adjacent lines.

• Trench shoring and safety gear – For OSHA-compliant excavation in urban or residential environments.

A&A Equipment and Supply stocks underground utility materials, including pipes, valves, and connection hardware designed for residential lead line replacements.

Replacement Techniques and Methods

Lead line replacements typically fall under two main methods:

1. Open-Trench Replacement

   • Traditional method involving full excavation along the service route.

   • Best for areas with minimal surface restoration concerns.

2. Trenchless (Pull or Push) Techniques

   • Uses directional boring or pipe pulling to minimize surface disruption.

   • Requires specialized tools and fittings compatible with trenchless equipment.

Both methods require precise connection hardware, flexible piping, and sometimes adjustment rings for manhole access if water mains or sewer crossings must be accessed during the project.

Challenges in Urban Lead Line Replacement

• Navigating tight access points and basement connections

• Documenting and verifying full lead removal, including partial replacements

• Coordinating with property owners for consent and scheduling

• Managing restoration of sidewalks, landscaping, or street surfaces

Contractors must also remain compliant with EPA and IEPA documentation and photo verification guidelines.

How A&A Equipment and Supply Supports Lead Line Replacement Contractors

A&A Equipment and Supply offers more than just materials—we’re a Chicago-area sewer and water supplier with deep experience in supporting municipal and private lead replacement projects. Our capabilities include:

• In-stock delivery of copper service lines, curb boxes, and repair fittings

• Same-day pickup for emergency replacements and scheduled work

• Power equipment repair to keep saws, tampers, and trenchers job-ready

• Expertise in sourcing niche components for legacy systems and mixed-material transitions

If your crew is looking to scale lead replacement efforts across municipalities or private properties, our team can help you source, stage, and service the tools and materials you need.

Final Thoughts

Lead line replacement is a growing, regulated, and essential part of Illinois infrastructure work. With the right materials, reliable partners, and efficient execution, contractors can turn this mandate into a long-term revenue stream.

A&A Equipment and Supply is proud to support sewer and water contractors tackling these projects with high-quality sewer repair products, water utility materials, and field-ready power equipment repair.

Call to Action Need supplies for your next lead line replacement job? Visit https://aa.equipment or contact us today to get a quote on sewer construction supplies, adjustment rings, and HDPE or copper water line materials.