Problem: The City of Conover, North Carolina, needed to rehabilitate four aging aeration basins — each 110 feet long, 26 feet wide, and 17.5 feet deep — that had suffered serious concrete deterioration and exposure to aggressive hydrogen sulfide gas, threatening the integrity of their wastewater treatment infrastructure.
Solution: The city engaged OBIC-certified installer CTR Coatings, selected for its expertise and the outstanding performance of the OBIC Armor Multi-Layer system, which delivers 100% H₂S gas resistance and includes a 10-year warranty. A staged approach minimized downtime: two basins were hydroblasted over one week, followed by two weeks of lining work, with the remaining basins scheduled later to ensure continuous service.
Result: The project successfully mitigated further corrosion and extended the life of critical infrastructure. Weather and coordination challenges — such as rain delays — were handled effectively through collaboration and planning. The outcome demonstrates that with the right expertise, products and execution, municipalities can protect vital systems sustainably and reliably.
