Situated on the Patapsco River, the Patapsco Wastewater Treatment Plant (WWTP) is a secondary treatment facility that removes pollutants from incoming wastewater and returns it to the Patapsco River and the Chesapeake Bay. Eastern Testing & Inspection's (ETI) technicians recently completed non-destructive examination (NDE) services for the facility. The services performed include:
- Condition assessments of sludge blending tanks (1&2)
- Impact echo tests on the exterior tank walls
- Windsor probe tests on the top and bottom slabs of both tanks as well as the interior tank walls
- Ground penetrating radar (GPR) scans on the top and bottom slabs and on the basement concrete columns to locate reinforcing in both tanks
- Drilled core specimens to determine compressive strengths of the top and bottom slabs at both tanks
- Half cell potential and galvanostatic pulse measurement on the reinforcing in the tank walls
- Petrographic examination on core specimens from both tanks