Water questions have different front doors

Wells, Septic Systems, Wetlands, and Waterfront Land in Michigan

A Michigan route for private wells, onsite septic systems, wetland screening, lakes and streams, Great Lakes shore work, floodplains, drains, and local health departments.

Treat the well and septic system as two working parts

Michigan local health departments regulate and inspect private residential wells and onsite septic systems, often through a county or multi-county district.

Records: Ask for construction, permit, inspection, repair, abandonment, and water-test records tied to the address.
Current condition: Use the inspection and water tests appropriate to the property, lender, local guidance, and known regional concerns.
Future replacement: Ask whether the parcel has suitable room for a replacement system rather than looking only at today's tank and field.
Vacant land: A site evaluation or perc result is one part of buildability. Confirm zoning, access, wetlands, and the rest of the project separately.

Use wetland maps as a warning light, not a verdict

Wetlands can be seasonal, wooded, or easy to miss. EGLE regulates certain activities in regulated wetlands and offers routes for identification and pre-application help.

Screen: Review available maps, prior permits, wetland reports, standing-water history, soils, and nearby surface water.
Identify: When the project depends on the answer, use qualified field work or EGLE's available identification and pre-application routes.
Ask before disturbing: Filling, dredging, draining, or constructing in a regulated wetland may require a permit before work starts.
Keep approvals separate: Local zoning or septic approval does not replace EGLE review, and EGLE review does not replace local approval.

Projects near shorelines can collect several rules

Docks, seawalls, dredging, fill, stream crossings, floodplain work, and Great Lakes shore protection can enter the state and federal Joint Permit Application path.

Inland lakes and streams: Work on bottomlands or that changes a lake, stream, marina, channel, or natural flow may need EGLE review.
Great Lakes shore: Bottomlands, critical dunes, high-risk erosion areas, and other shore conditions can add separate requirements.
Floodplain: Check mapped flood exposure for the building plan, insurance conversation, access, and any required permit review.
County drains: A county drain and its drainage district are not the same thing as a private ditch. Contact the county drain office before altering one.

The office map

Who handles which part

Land questions rarely have one front desk. Start with the row that matches the decision in front of you.

Private well or septic system?: Local or district health department; Use the parcel's county to find permits, records, inspections, and local standards.
Wetland, lake, stream, floodplain, or shore work?: Michigan EGLE Water Resources Division; EGLE provides screening, pre-application, permitting, and district-staff routes.
County drain or drainage assessment?: County drain commissioner or water-resources office; The county office holds the drainage-district and project record.
Zoning, setback, or local shoreline rule?: Local zoning administrator; State water approval and local land-use approval are separate questions.

Find the parcel's local and county pages →

Sources and review

Where to confirm the current answer

These official Michigan sources own the statewide program or rule. The local office, recorded documents, and qualified professional still control the parcel-specific answer.

Data used: Current Michigan agency and statutory guidance
Last reviewed: July 17, 2026

Michigan local public health for private-well and septic-system oversight.
Michigan EGLE private-well FAQ for well construction, permits, inspection, and maintenance.
Michigan EGLE septic-system FAQ for onsite wastewater guidance and local routing.
Michigan EGLE wetland FAQ for regulated wetlands and property-buyer questions.
Michigan EGLE Joint Permit Application for wetland, floodplain, shoreline, lake, and stream project review.

Use this carefully: Water and soil conditions vary parcel by parcel. Do not rely on a map, old test, seller statement, or neighboring approval as permission for construction or disturbance.

Rules, rates, forms, office practices, and local facts can change. When the answer matters, confirm it with the current official source, the responsible office, or a qualified Michigan professional before acting.

Next steps

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