Grand Traverse County Time-of-Transfer Septic Inspections

Why This Regulation Exists

Grand Traverse County has more than 40 inland lakes, sixty miles of Lake Michigan shoreline, and countless rivers and streams running through its borders. The county sits on a high water table with sandy, porous soils — which means anything that leaks from a septic system can reach groundwater fast. Leelanau and Benzie Counties already had similar rules. Grand Traverse County's version went through two years of public hearings and was adopted in May 2025, with enforcement starting January 2026.

The regulation applies to any property transfer — sale, land contract, or ownership change — where the property has a septic system and sits within 300 feet of a lake, river, stream, or pond. If you're a seller, you need the inspection done before you list, not after you've accepted an offer. If you're a buyer, the inspection protects you from inheriting a failed system that could cost $10,000 or more to replace.

What the Inspection Covers

Our certified inspectors follow the Grand Traverse County Health Department's evaluation protocol. Here's what we check:

Tank Inspection. We open the tank and assess its overall condition. We check the concrete or fiberglass walls for cracks or deterioration, the baffles for signs of failure, and the risers and lids for structural integrity. We measure the sludge and scum levels to determine whether the tank has been maintained properly.

Dye Testing. We introduce a colored dye into the system and run water through the fixtures to check for leaks, backups, or surface breakout. If dye appears in the yard, in a ditch, or near the shoreline, that's a sign the system is failing and needs immediate attention.

Drain Field Assessment. We walk the drain field area looking for wet spots, spongy ground, odors, or lush green grass growing over the field (a sign of nutrient loading). We check for signs that the field is hydraulically overloaded or that the soil absorption system has failed.

Documentation and Report. You get a written evaluation report that meets all GTCHD requirements and can be submitted during the property transfer process. If the system passes, you're good to close. If it doesn't, we explain what needs to be done and provide a repair estimate.

What Happens If the System Fails

If the inspection reveals a failing system, the property can still be sold — but the issue must be disclosed, and either the seller remedies it before closing or the buyer accepts the condition. In some cases, we work with the buyer and seller to escrow funds for the repair.

The most common failures we see in Grand Traverse County are: baffle deterioration (especially in older concrete tanks), hydraulic overloading of drain fields from seasonal use by large families or rental groups, and systems that were undersized when installed and can't handle modern water usage. Most of these are fixable — and often for far less than a full replacement.

When to Schedule Your Inspection

The worst time to schedule a time-of-transfer inspection is after you've accepted an offer. We recommend calling us as soon as you decide to list your property — that way, if repairs are needed, you have time to address them without delaying your closing.

For buyers, we recommend requesting the inspection during your due diligence period. Some buyers even ask for it before making an offer, especially if the property is on the water and the home hasn't been updated in decades.

What It Costs

Pricing depends on tank access, size, and site conditions. We give upfront pricing over the phone. Typical time-of-transfer inspections in Grand Traverse County run $375–550, which is modest compared to the cost of replacing a failed system.