RV Dump Stations In Union, Maine -- Find Sani-Dumps Online

44.2115° N, 69.2742° W

Quick Overview

Union's RV dump station situation is straightforward -- you've got several stations to choose from, with some offering free access. This means you'll be paying for dumping services here, but the options are solid for handling your black and gray tank needs.

Union sits in the heart of Knox County, Maine, positioned perfectly for RVers exploring the Midcoast region. The town serves as a gateway to some of Maine's most popular coastal destinations, making it a strategic stop for those heading to Camden, Rockland, or the surrounding state parks. It's a working community that sees steady RV traffic throughout the tourist season.

The dump station landscape here consists entirely of private campground facilities. These sanitary dump stations are typically well-maintained and offer the full suite of services you'd expect -- rinse water, proper drainage, and adequate maneuvering space for larger rigs. Most facilities cater to both guests and non-guests, though policies and pricing can vary between locations.

Getting to Union's sani-dump facilities is pretty straightforward via Route 17, which runs right through town. The road handles RVs well, with decent shoulders and manageable grades. Most stations are accessible without navigating tight residential streets or dealing with low-hanging branches.

You'll find our complete listings below, with current pricing, hours, and user reviews to help you pick the right spot for your RV waste disposal needs.

Top Rated Dump Stations in Union

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All Dump Stations Near Union

Station Name	Distance	Rating	Category	Cost
Mic Mac Cove Family Campground	1.2 mi	\u2014	Dump Station	Free
Townline Camping	10.7 mi	\u2014	Dump Station	Free
Saltwater Farm Campground	11.1 mi	\u2014	Dump Station	Varies
Rockland Sewage Treatment Plant	11.1 mi	\u2014	Dump Station	Varies
Camden Hills State Park	11.2 mi	\u2014	Dump Station	Free
Duck Puddle Family Campground	13.1 mi	\u2014	Dump Station	Free
Lake Saint George State Park	13.4 mi	\u2014	Dump Station	Free
Lobster Bouy Campsite	14.9 mi	\u2014	Dump Station	Varies
Northport Travel Park Campground	17.9 mi	\u2014	Dump Station	Free
Moorings Oceanfront RV Resort	21.2 mi	\u2014	Dump Station	Free

Traveling to Union by RV

Route 17 serves as Union's main artery and your primary access route for reaching dump stations. This state highway handles RVs of all sizes without issues, connecting directly to Route 1 about 15 miles southeast near Rockland. From the south, take I-95 to Route 1 north, then follow Route 17 west into Union -- it's well-marked and RV-friendly throughout.

The roads around Union are typical rural Maine -- mostly two-lane with adequate shoulders, but watch for occasional frost heaves in spring. No significant bridge restrictions or weight limits affect RV travel in the immediate area. Route 235 provides an alternate route from the east if you're coming from the Rockport direction.

Overnight parking options are limited in Union proper. The nearest Walmart allowing overnight stays is in Thomaston, about 20 minutes southeast. Rest areas are scarce on these rural routes, so plan your fuel and rest stops accordingly. Most RVers use Union as a quick dump-and-go stop rather than an overnight destination, unless they're staying at one of the local campgrounds.

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Dump Station Costs in Union

Union's dump station pricing reflects the private campground model -- expect to pay between $10-20 for non-guest dumping services. Of the several stations available, a portion% are free while a portion% charge fees, which is typical for this part of Maine where municipal facilities are rare.

Campground rates here tend to be reasonable compared to coastal destinations like Bar Harbor or Kennebunkport. Some facilities offer package deals if you're also buying fuel or supplies, so ask about discounts when you arrive. The pricing usually includes fresh water fill-up and tank rinsing privileges.

Since free options aren't available in Union, consider timing your visit with nearby coastal towns that might have municipal facilities. Alternatively, if you're planning an extended stay in the Midcoast region, some campgrounds offer weekly dump passes that can save money over multiple individual visits. Always carry exact change or small bills -- not all locations accept credit cards for dump services.

Free: 11 stations (79%)

Paid: 3 stations (21%)

Contact station for pricing details.

Prices may vary. Always confirm with the station before visiting.

What RVers Are Saying About Union

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Best Time to Visit Union by RV

❄️

Winter

Dec - Mar

15-35°F

Crowds: Low

Several dump stations close seasonally; call ahead to confirm winter availability and heated facilities.

🌸

Spring

Apr - May

35-65°F

Crowds: Medium

Mud season brings rough secondary roads; stick to main routes and expect some facilities reopening mid-April.

☀️

Summer

Jun - Aug

55-80°F

Crowds: High

Peak season means busiest dump stations; early morning visits recommended to avoid coastal tourist traffic.

🍂

Fall

Sep - Nov

30-70°F

Crowds: Medium

Excellent time for dumping with cooler temps and fewer crowds; some facilities reduce hours after Columbus Day.

Explore the Union Area

Hit the dump stations early morning or late afternoon to avoid the midday rush, especially during July and August when coastal traffic peaks. The campground facilities here typically have good water pressure for tank rinsing, but bring your own hose -- not all provide them.

Fuel up before or after dumping since Union's gas stations are spread out along Route 17. The Irving station near the town center is RV-accessible and stocks basic supplies. For propane, you'll want to head to Rockland or Camden where larger retailers offer better tank exchange programs.

If you need RV repairs or parts, Rockland Marine has a decent selection about 15 minutes away. For major mechanical issues, there's an RV service center in Thomaston that handles most brands. Keep in mind that cellular service can be spotty in some areas around Union, so download offline maps before heading to more remote dump locations.

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Frequently Asked Questions About Dump Stations in Union

Where can I dump my RV tanks in Union, Maine?

Union has {{stationCount}} RV dump stations available, both located at private campgrounds within the town limits. These facilities serve both registered guests and travelers passing through the area. You'll find them easily accessible from Route 17, the main road running through Union.

Are there free dump stations in Union?

Currently, Union has {{freeCount}} free dump stations available to RVers. All existing facilities are operated by private campgrounds that charge fees for dumping services. For free alternatives, you'd need to travel to nearby towns or look for municipal facilities in the broader Midcoast region.

How much does it cost to use a dump station in Union?

Expect to pay between $10-20 for dump station access at Union's private campgrounds. Prices typically include fresh water fill-up and tank rinsing privileges. Some facilities offer slight discounts if you're also purchasing fuel or camping supplies, so it's worth asking about package deals when you arrive.

What should I bring to an RV dump station?

Pack your own sewer hose, disposable gloves, and paper towels for cleanup. While most Union facilities provide rinse water, bringing a few gallons of fresh water ensures you can properly flush your tanks. A sewer hose support or connector fittings might be needed depending on the station setup.

Do Union dump stations stay open year-round?

Several dump stations in Union operate seasonally, typically closing from November through March due to freezing temperatures. The exact schedule varies by facility, so call ahead during shoulder seasons to confirm availability. Winter access is limited but some heated facilities may remain open for emergencies.

Where can I dump my RV tanks in Union, Maine?

Are there free dump stations in Union?

How much does it cost to use a dump station in Union?

What should I bring to an RV dump station?

Do Union dump stations stay open year-round?

Are there free dump stations in Union?

Yes — there are free RV waste disposal options available near Union.