Kindred, ND – Wastewater Improvements

CHALLENGE

The City of Kindred’s population growth and significant water infiltration/inflow (I & I) during wet weather led to increased wastewater flows into the main sanitary lift station and ultimately to the existing wastewater treatment lagoons, which were both significantly undersized. The main sanitary sewer lift station experienced sanitary sewer overflows (SSOs) and the lagoons were not properly treating wastewater prior to discharging into a river. The wastewater system was at its breaking point.

SOLUTION

Moore led the effort to evaluate various alternatives for improving the main sanitary sewer lift station and wastewater lagoon. It was decided to upgrade the main lift stations with a cost-effective solution utilizing the existing wet well structure and upgrading pumps, piping, and controls. It was also decided to remove the existing wastewater lagoon from the inner-city area and construct a new wastewater lagoon 2 miles west of the city. Moore evaluated the best location for the lagoon and assisted with acquiring 40 acres of property for the new lagoon and all easements for a new 2-mile 14” diameter force main between the main sanitary lift station and lagoon. Moore also assisted the City in acquiring $4.62 million in grant funding from the USACE and CWSRF.

OUTCOME

The additional capacity of both the main sanitary lift station and the newly relocated wastewater lagoons will allow the City to grow without the concerns of future wastewater issues. The new lagoon has 4 cells, 31 acres of surface area, and 37.6 million gallons of operating storage volume. Constructing the new lagoons required moving 234,000 cubic yards of earth and placing 5,200 cubic yards of rock for erosion protection. The old lagoons were decommissioned, allowing the land to be used for other beneficial purposes for the City.