Portage County, Wisconsin
Town of Eau Pleine is a town in Portage County, Wisconsin. Town of Eau Pleine adopts its own zoning, so inside its limits Town of Eau Pleine’s rules apply, not the county’s. Septic permits inside Town of Eau Pleine come from Portage County (Portage County Planning & Zoning Department - On-Site Waste (POWTS) · (715) 346-1334). 12 rules below are quoted from official sources and independently re-checked, most recently on October 29, 2026. Rules for unincorporated land are on the Portage County page.
All new dwellings inside Eau Pleine town.
“A Uniform Dwelling Code (UDC) Building Permit is required for all new dwellings and may be required for other improvements. These permits are issued by the Town.”
Land inside Eau Pleine town; Portage County administers the zoning permit program that applies there.
“If you live in the Towns of Alban, Almond, Amherst, Belmont, Buena Vista, Carson, Dewey, Eau Pleine, Hull, Lanark, Linwood, New Hope, Plover, Sharon, and Stockton, you will need to secure a Zoning Permit before proceeding with your project.”
County zoning districts applicable inside Eau Pleine town.
“Zoning consists of two elements, a written code, and a zoning map. You can click here for an interactive zoning map of Portage County, and you can click here for a link to Portage County’s Code of Ordinances.”
Camper-based temporary camping inside Eau Pleine town.
“Placement of campers in Agricultural, Conservancy and/or Rural Limited Zoning Districts (prohibited in other Districts);”
Private onsite waste treatment systems serving property inside Eau Pleine town.
“Portage County has a mandatory Private Onsite Waste Treatment System (POWTS) maintenance program. If you own a property served by a POWTS, you are required to have your system maintained and submit maintenance reports to the county.”
New homes and covered bedroom-increasing additions inside Eau Pleine town.
“A Sanitary Permit is required before a Zoning Permit can be issued for new homes and additions to homes which increase the number of bedrooms or disrupt the existing building sewer line.”
Most private onsite waste treatment systems inside Eau Pleine town.
visual inspection interval: per 3 years (Most POWTS other than holding tanks)
“Required maintenance of these POWTS involves having the system visually inspected every 3 years and having tank(s) pumped if sludge and scum occupy more than 1/3 of the tank volume.”
Non-plumbing sanitation systems, including privies or outhouses, inside Eau Pleine town.
“Homeowners are allowed to apply for non-plumbing sanitary permits such as privies or outhouses.”
Driveway and culvert work inside Eau Pleine town.
“Driveway and Culvert Permits may be required. Contact the appropriate agency depending on your location:”
Structural changes to buildings in floodplains inside Eau Pleine town.
“When is a Zoning Permit REQUIRED: [...] Structural changes to buildings in a floodplain;”
County zoning and sanitary permits applicable inside Eau Pleine town.
new-home/mobile-home zoning permit: 200 USD per living unit proposed (Private lots) · conventional sanitary permit: 400 USD (Document-recording fees excluded when necessary) · alternate-system sanitary permit: 450 USD (Mounds, at grade, IGP, or fill) · holding-tank sanitary permit: 500 USD
“Conventional System $400* Alternate Systems (mounds/at grade/IGP/Fill) $450* Holding Tanks $500*”
County zoning permits for projects inside Eau Pleine town.
application lead time: >= 2 weeks (Before intended start of construction)
“Return the completed application to our office at least 2 weeks prior to the intended start of construction. Construction start includes footings, foundations, basements and slab work.”
We looked and could not find an official answer yet. Silence is not permission; ask Town of Eau Pleine or Portage County directly.
Each answer was extracted from an official source and independently re-checked against that source by a second reviewer. That is an evidence check, not legal advice. Rules change; confirm with the authority before you buy or build.
Unanswered questions are usually a sign that Town of Eau Pleine publishes no rule on the point, not that none exists. Portage County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Town of Eau Pleine means bringing your own water and power. The kit we’d start with:
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