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City of Hettinger, Lagoon Cell #3 Repair


Due to several years of dry weather, the City of Hettinger’s secondary sanitary lagoon cell had dried up from evaporation and irrigation, causing the thin sections of the liner to crack. When water was placed into the secondary cell, the cracks did not seal and water seeped at a high rate down the hill to the primary cell. The water also flowed across the top of the berm, which provided access to the lift station, causing impassible conditions and allowing weeds to grow at an increased rate. Additionally, the seepage had decreased available treated water for irrigation. In order to control seepage to groundwater and provide the right environmental conditions for wastewater treatment, the City needed to remove and replace the existing liner immediately.

This project replaced cracked lining, installed an impermeable high-density, environmentally friendly, polyethylene plastic liner and sealed the entire pond, allowing treated water to be retained and used for irrigation. This project also reduced maintenance costs and the number of hours needed for the treatment process.

The City was awarded a $111,500 Community Development Block Grant, a USDA Rural Development $228,000 loan, and a USDA $185,650 grant to complete the project. Brosz Engineering provided surveying, preliminary engineering, and construction engineering services.

Project Details

2019 Design
2020 Construction



Funding Assistance


Preliminary Engineering

Construction Engineering

Owner Benefits

  • Reliable sewer service for residents and businesses
  • Treated water used for golf course irrigation
  • Increased overall system capacity
  • Improved environmental conditions