Smoke testing is simple: we force non-toxic, theatrical-grade smoke (think concert fog, not chimney puff) into your sewer mains from manholes. The smoke travels the pipes and escapes wherever there’s a breach—whether that’s cracks, illegal downspouts, or busted laterals. Wherever the smoke escapes, that’s where groundwater or stormwater is sneaking in. It’s fast, cheap, and freakishly accurate at pointing out weak points before they become disasters.
2021 AMP06 – Structural Defect Identification & Replacement
Jefferson County, AL Gulf Coast Underground (GCU) served as the prime contractor for Jefferson County’s 2021 AMP06 – Structural Defect Identification and Replacement project, which spanned two full years of field activity. This task-order based contract was developed to assess and address structural…
New Iberia Sewer System Improvements
New Iberia, LA Gulf Coast Underground (GCU) completed the New Iberia Sewer System Improvements project as part of the City’s efforts to improve system performance and identify sources of inflow and infiltration (I&I). A major component of the work involved performing 77,513 linear feet of smoke …
Tallahassee Sanitary Sewer Evaluation Survey (SSES)
Tallahassee, FL Gulf Coast Underground (GCU) successfully completed a Sanitary Sewer Evaluation Survey (SSES) for the City of Tallahassee in 2022. This project was part of the City’s ongoing initiative to assess system performance, reduce inflow and infiltration (I&I), and prepare for future reh…
Union City – Smoke Testing Project
Tallahassee, FL Gulf Coast Underground (GCU), LLC performed comprehensive smoke testing project services for over 71,000 linear feet of sanitary sewer as part of a system-wide inflow and infiltration (I&I) evaluation in Union City, Tennessee. The goal of the project was to identify structural de…