Off-Grid Living in Carthage, Maine

I've been digging into Carthage, Maine for folks thinking about going off-grid there, and here's what I found, with the caveat up front that some of it is genuinely murky and needs a phone call to confirm.

Zoning. Carthage is not one of Maine's unzoned towns. The Town has its own Unified Development Ordinance (UDO), which sets districts and land-use standards under a comprehensive plan. But there's a wrinkle worth knowing: in the shoreland zone (within 250 feet of ponds and wetlands, 75 feet of streams), Carthage's own shoreland ordinance was found non-compliant with state guidelines back in the 1990s, so the Maine DEP stepped in and imposed its own shoreland zoning (Chapter 1292) for those areas. So depending on where your land sits, you may be dealing with the Town's general UDO, the state's shoreland rules, or both.

Dwellings, tiny homes, RVs. I couldn't confirm specific rules for tiny homes or RVs as permanent dwellings in the UDO text I reviewed. This is a "read the full ordinance or call the Code Enforcement Officer" situation.

Building permits. Carthage has a Code Enforcement Officer (CEO), a role defined under state law (30-A M.R.S. § 4451) that covers enforcement of local ordinances plus state rules on shoreland zoning, plumbing, subsurface waste disposal, and building standards. In practice, this means one town official likely handles your building, septic, and plumbing questions.

Septic and composting toilets. Septic systems are permitted but regulated at the state level under Maine's Subsurface Wastewater Disposal Rules, with local enforcement through a Licensed Plumbing Inspector (LPI), a role the CEO likely also fills in Carthage. Portable toilets are allowed short-term, but longer use needs LPI sign-off.

Greywater. Same framework as septic, state rules (CMR 241), local LPI permitting. No separate town ordinance on greywater specifically.

Rainwater harvesting. I found nothing on this at either the state or town level for Carthage. That doesn't mean it's banned, it likely just isn't addressed.

Wells. Well construction is governed by the state Water Well Commission and Maine CDC's Drinking Water Program. No Carthage-specific well ordinance turned up in my research.

Full utility disconnection. There's no clear Carthage ordinance that explicitly bans or blesses living off-grid, unhooked from utilities. Realistically, you'd need to satisfy the UDO's dwelling standards plus the state's septic, well, and plumbing rules, all enforced locally by the CEO/LPI.

Bottom line: Carthage is more regulated than an "unzoned" Maine town, and a couple of state agencies (DEP for shoreland, Maine CDC for water/wastewater) layer on top of local rules. Call the Town Office before you buy land or build.