A $5 (or maybe by donation) dump station is available at the Montpelier wastewater treatment plant, 949 Dog River Rd, Montpelier, VT 05602. It’s less than a mile off/on I89. It’s located on the plant’s north side, nearly across from Montpelier Junction Road.
Vermont
Rutland, Vermont
Wastewater treatment plant at West St (US-4 Bus) and Greens Hill Ln. 802-773-1863. Free.
Last updated: 8/22/2007
Newport, Vermont
Newport Wastewater Treatment Plant, 94 T P Ln, Newport VT 05855 / 802-334-2124. Free.
Last updated: 12/22/2015
Hartford, Vermont
Quechee State Park, 5800 Woodstock Rd, Hartford VT 05047 / 802-295-2990. Open mid-May to mid-October. Rinse water. $30 or less.
Last updated: 10/4/2019
Fair Haven, Vermont
Exit 1 RV, 1210 Prospect St, Fair Haven VT 05743 / 802-265-3400. Rinse water. $10 or less.
Last updated: 9/23/2019
Bennington, Vermont
Woodford State Park, 142 State Park Rd, Bennington VT 05201 / 802-447-7169. $30 or less.
Last updated: 3/18/2019