Thursday, June 30, 2016

MPCA seeks comments on proposed expansion of Kasson’s wastewater treatment plant

The City of Kasson plans to improve and expand the capacity of its wastewater treatment plant to more effectively treat its wastewater, and accept and treat more wastewater.

Part of the need for increased capacity is an agreement Kasson made with nearby Mantorville to accept its wastewater. In addition, during severe rain events, wastewater coming to the Kasson facility is exceeding the plant's current capacity and can cause sewer backups. The project will also help the plant meet water quality standards in its discharges to the Zumbro River, and allow for continued population growth in both Kasson and Mantorville. 

The construction project will include: 

  • Building an additional 4.3-million-gallon wastewater retention basin
  • Adding other equipment that will increase the plant's treatment capacity
  • Making adjustments to the existing process that will improve the plant's ability to remove phosphorus from wastewater
  • Installing needed new wastewater piping

Mantorville is installing the pipe needed to convey its wastewater to the Kasson treatment plant. The City of Kasson hopes to finish part of the proposed project in 2016, but some of the work to increase treatment capacity will begin five or 10 years down the road.  

The Minnesota Pollution Control Agency has prepared an environmental assessment worksheet (EAW) on the proposed construction to describe the project and its potential impact on the environment. It details the site; nearby residences, water bodies, and wells; air and odor emissions; and more. The EAW is available on the MPCA web site

Comments on the worksheet must be in writing and submitted by 4:30 p.m. on July 27, 2016 to Nancy Drach (651-757-2317) at the Minnesota Pollution Control Agency, 520 Lafayette Road N., St. Paul, MN 55155-4194.

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