A 122-day tank cleanout in the Susquehanna valley

Towanda WWTP, Towanda, Pennsylvania — The longest tank job in our record, and the most thoroughly photographed.

Vessels

Tanks

Duration

122 days on site

Started

October 2025

Client type

Municipal authority

The situation

Rectangular treatment tanks at a Susquehanna valley plant. The gallery shows what the crews found: aeration headers and diffuser piping running the length of the floor, and banded staining up the walls marking years of operating levels. Piping on the floor is what makes a tank like this slow work — there is no clear run for a squeegee and every header has to be worked around by hand.

What we did

Drawdown, then solids removal across the floor and around, beneath and between the diffuser piping. Access by ladder through the top. Walls and floor washed down to bare concrete once the material was out. The job ran 122 days, the longest single tank engagement in our log.

The outcome

The later gallery frames show the result: clear floor, exposed piping, concrete back to surface.

Service

This job ran under Tank & basin cleaning. Working a vessel like this one? Send us dimensions and rough volume and we will tell you what the job takes.

On entry

Aeration headers running the floor and banded staining up the walls.

Other projects.

Friedens, Pennsylvania

The Crawler on an agricultural manure lagoon

Wayne Martin’s Farm, Friedens, Pennsylvania — The same surface-operated equipment that works municipal lagoons, on

Fort Wayne, Indiana

Digesters cleaned across a full winter, 500 miles out

Fort Wayne Water Pollution Control Plant, Fort Wayne, Indiana — Nearly six months in Indiana,

Strattanville, Pennsylvania

Two lagoons dewatered, and a baffle installed

Strattanville Borough Municipal Authority, Strattanville, Pennsylvania — Dewatering of two lagoons for a borough authority,

Got a vessel like one of these?

Dimensions, rough volume, and how long since the last cleanout. That’s enough for scope, a window and a price.