Problem

The Village of Hamler, Ohio, faced severe hydrogen sulfide corrosion and excessive groundwater infiltration in its manholes, leading to 168,000 gallons per day of excess water entering the lagoon system during rain events. This overwhelmed the treatment system, reduced retention time, and created the risk of EPA compliance violations.

Solution

To address the issue, Hamler partnered with Advanced Rehabilitation Technology (ART), an OBIC-certified installer. ART rehabilitated 25 of the village’s 100 manholes using OBIC 2210 Leak Stop Grout to seal high-pressure infiltration points and the OBIC Armor multi-layer lining system to restore structural integrity and prevent future corrosion. Work was completed in phases of 10 manholes at a time, allowing the village to monitor real-time improvements.

Result

  • 30,000 gpd infiltration reduction after just 10 manholes
  • Infiltration reduced from 168,000 to 75,000 gallons/day by project end
  • EPA compliance risks mitigated due to restored lagoon performance
  • Extended manhole lifespan with OBIC’s 10-year warranty and SWAT-tested lining
  • Significant cost savings compared to full replacement