Saginaw County, Michigan
Zilwaukee Township is a township in Saginaw County, Michigan. Septic permits inside Zilwaukee Township come from Saginaw County (Saginaw County Health Department – Environmental Health Division · 989-758-3800). 6 rules below are quoted from official sources and independently re-checked, most recently on October 30, 2026. Rules for unincorporated land are on the Saginaw County page.
Zilwaukee Township does not set these itself; the county, a health district or the state does, and they apply to every address inside its limits.
Onsite (septic) wastewater system permitting for land inside Zilwaukee township, for sites not served by public water and sewage disposal; administered by the Saginaw County Health Department, which serves the whole county including Zilwaukee township
“the saginaw county health department will: make an onsite investigation of the conditions of your lot in regards to sewage disposal.”
Building a new home or replacing a septic system on a parcel inside Zilwaukee township that is not served by a public water supply and sewage disposal system
permit validity: 2 years
“if you own property and are planning to build or need to replace a well or septic system at a site which is not served by a public water supply and sewage disposal system, you are required to obtain a well permit and/or a wastewater disposal permit from this office.”
Completed septic (onsite wastewater) system on a parcel inside Zilwaukee township that is not served by public water and sewage disposal, under a county permit
“make a complete inspection of the completed onsite wastewater treatment and disposal system prior to covering”
Private onsite sewage disposal for a home on a parcel inside Zilwaukee township that is not served by public sewer
“a permit will be issued to you if the conditions found on the site are acceptable for the installation of an onsite wastewater treatment and disposal system.”
Building a new home or replacing a water well on a parcel inside Zilwaukee township that is not served by a public water supply and sewage disposal system
“if you own property and are planning to build or need to replace a well or septic system at a site which is not served by a public water supply and sewage disposal system, you are required to obtain a well permit and/or a wastewater disposal permit from this office.”
Development on a parcel inside Zilwaukee township that is within or partially within a regulated floodplain or wetland, where a county well or septic permit is sought
“if your property is located within or partially in a regulated floodplain or wetland, a permit must be obtained from the michigan department of environmental quality before a permit will be issued by this department.”
We looked and could not find an official answer yet. Silence is not permission; ask Zilwaukee Township or Saginaw 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 Zilwaukee Township publishes no rule on the point, not that none exists. Saginaw County’s page lists the county offices to call.
Off-grid gear
Going off-grid in Zilwaukee Township means bringing your own water and power. The kit we’d start with:
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