Village of Lomira Wastewater Treatment Facilities Project

On Wednesday, August 14, 2019 the Village of Lomira Board approved the proposed wastewater treatment facility upgrade project plan and 56% sewer rate increase. The rate increase affects the sewer portion of utility bill only. The Village will utilize the State of WI Environmental Improvement Fund loan programs in an amount not to exceed $5.3 million for the necessary improvements, of which the Village is eligible for up to 30% principal forgiveness.


The sewer rate will be effective on the fourth quarter utility bill.


The Village of Lomira held a public hearing at the Municipal Complex, 425 Water Street, Lomira on January 9, 2019 and April 10, 2019 to discuss a Wastewater Facilities Plan and sewer rate increase.


The Wastewater Facilities Plan addresses the long term wastewater treatment needs in the Village of Lomira as required by the WI DNR.  The public hearings included a discussion of the wastewater facilities planning process, the recommended improvements, and the anticipated financial impact to the community of those improvements. At the public hearing, questions regarding the Wastewater Facilities Plan and sewer rates were addressed and public comments were accepted for consideration.


Where does "waste" go?

A simplified explanation of the wastewater treatment process

Bathroom Toilet

Bathroom wastewater: toilet, sink, shower/bathtub

Kitchen Sink

Other household wastewater: kitchen sink, garage sink, etc.

wastewater flows to a pipe below your home 

and flows to a larger pipe that then carries the waste to the wastewater treatment plant

At the wastewater treatment plant, the waste is processed/filtered through the following steps:

Step 1


First, waste arrives at the treatment plant to filter through a screen. The screen traps large, non-organic debris that cannot be processed. Examples include baby wipes, "flushable" wipes (that should NOT be flushed), toys, pencils, anything that shouldn't go down the drain/toilet. 

Step 2


Next, any non-organic materials that the screen traps is then removed and dropped in a dumpster for the landfill. 

This is an image of part of a screen that broke due to non-organic material.

large items caught in screen.jpg
Step 3


Next, the waste travels through the grit classifier, which is a smaller screen that traps any sand-like material from flowing further through the treatment plant. Material trapped by this screen is also dropped into a dumpster for the landfill.

Grit Classifier 2.jpg
Step 4


Next, the waste collects in these basins for further treatment. Micro-organisms "eat" the undesired bacteria. Chemicals (such as chlorine) are also used to treat phosphorus.

Aerator Basin.jpg
Step 5


Lastly, the waste enters the clarifier, which separates particles for cleaner water. Particles will either sink to the bottom or float to the top, which is then sifted out. The clean water discharges into the Rock River Basin just south of the treatment plant.