Clay Hauling & Installation in Northeast & Central Wisconsin

Engineered Sealing Solutions for Retention Ponds, Lagoons & More

At Thomas Excavation, we specialize in clay supply, hauling, and installation for retention ponds, lagoon sealing, and fluid containment systems across Central and Northeast Wisconsin. With our own active clay pit located in Aniwa, Wisconsin, we provide a direct source of premium clay — with no middleman, no markup, and complete control over quality and logistics.


Whether you’re a farmer, developer, municipality, or industrial site manager, we deliver watertight results that meet both environmental compliance and performance demands.

Construction workers surveying and excavating at a construction site, near a concrete structure, on a sunny day.

What We Offer

Clay Supply from Our Own Pit

Our clay is sourced locally and tested for high swelling properties and low permeability — making it ideal for water retention applications. Available in bulk and delivered directly to your site.


Hauling – Any Volume, Any Location

With our fleet of well-maintained dump trucks, we offer efficient clay transport to farms, construction sites, industrial parks, and public works projects throughout Wisconsin. We handle logistics for large-scale deliveries or smaller project needs.


Professional On-Site Installation

We don’t just drop the load and drive off. Our experienced crew provides full-service clay installation, including:


  • Site preparation and excavation
  • Layered clay spreading and moisture control
  • Grading and compaction for optimal sealing
  • Final shaping for drainage or water containment

How does it work?

Clay Supply from Our Own Pit

Our clay is sourced locally and tested for high swelling properties and low permeability — making it ideal for water retention applications. Available in bulk and delivered directly to your site.


Hauling – Any Volume, Any Location

With our fleet of well-maintained dump trucks, we offer efficient clay transport to farms, construction sites, industrial parks, and public works projects throughout Wisconsin. We handle logistics for large-scale deliveries or smaller project needs.


Professional On-Site Installation

We don’t just drop the load and drive off. Our experienced crew provides full-service clay installation, including:

  • Site preparation and excavation
  • Layered clay spreading and moisture control
  • Grading and compaction for optimal sealing
  • Final shaping for drainage or water containment

Ideal Applications

Our clay hauling and installation services are used across a variety of industries and property types:

  • Agricultural: Livestock waste lagoons, runoff basins, and manure pits
  • Commercial: Stormwater retention ponds, fire suppression reservoirs, bio-retention cells
  • Industrial: Containment ponds, lined holding areas, washout pits
  • Government & Municipal: DNR-compliant water control structures, runoff prevention systems, and utility infrastructure


Local. Experienced. Dependable.

Based in Aniwa, Wisconsin, Thomas Excavation is a locally owned, fully insured contractor with decades of combined experience in excavation, pond building, and specialty material installation.

We work across counties including Shawano, Marathon, Langlade, Waupaca, Lincoln, and beyond.

Request a Free Estimate

Looking to build a new pond or seal an existing one? Need a dependable clay supplier for your project?


Thomas Excavation offers turnkey clay hauling and installation — with the equipment, knowledge, and clay supply all in one place.


Call now or fill out our online form to request a quote. Let’s talk about your water management needs.