Dump Stations In Moses Lake, WA -- Sani-Dumps Online
47.1301° N, 119.2781° W
Quick Overview
Moses Lake has several RV dump stations in the Columbia Basin of central Washington, with some free options for travelers passing through this agricultural and recreation hub along the I-90 corridor. This Grant County city sits at the crossroads of I-90 and WA-17 in the heart of the irrigated farmland that the Columbia Basin Project created from former desert, making it a natural stopping point for RVers traveling between Seattle and Spokane. The sani-dump facilities here serve a diverse crowd that includes I-90 through-travelers, summer lake recreation visitors, and the hunting and fishing enthusiasts who use the vast network of Columbia Basin waterways and wildlife refuges scattered across the surrounding landscape. Moses Lake's namesake lake offers excellent bass fishing, water skiing, and swimming from sand dunes beaches that draw weekend crowds from across the region. The sanitary dump station access in Moses Lake is a welcome find in the central Washington basin, where the distances between towns with full services can stretch to 50 miles or more across the flat irrigated farmland. RV dump station options here benefit from the city's position as the largest community between Ellensburg and Spokane on I-90, giving it a role as a de facto service center for the entire mid-Columbia Basin. The area's Japanese Garden, sand dunes off-road vehicle park, and Surf n Slide water park add recreation variety beyond the fishing and boating that anchor the summer tourism season. The Potholes Reservoir and surrounding coulees to the southwest add even more fishing and boating options to the area, and the annual spring bass tournament draws competitive anglers and their rigs from across the Pacific Northwest to this productive Columbia Basin fishery.
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All Dump Stations Near Moses Lake
| Station Name | Distance | Rating | Category | Cost |
|---|---|---|---|---|
| Grant County Fairgrounds | 1.7 mi | \u2014 | Dump Station | Varies |
| Moses Lake Conoco | 2.4 mi | \u2014 | Dump Station | Free |
| Suncrest Resort | 3.6 mi | \u2014 | Dump Station | Free |
| Potholes State Park | 10.8 mi | \u2014 | Dump Station | Free |
| MarDon Resort | 11.5 mi | \u2014 | Dump Station | Free |
| The New Mar Don Resort | 15.7 mi | \u2014 | Dump Station | Free |
| Sun Basin RV Park & Campground | 15.7 mi | \u2014 | Dump Station | Free |
| Rest Area - Moses Lake, Westbound | 15.8 mi | \u2014 | Dump Station | Free |
| Rest Area - Moses Lake, Eastbound | 16.0 mi | \u2014 | Dump Station | Free |
| Rest Area - Moses Lake, Eastbound | 16.7 mi | \u2014 | Dump Station | Free |
Grant County Fairgrounds
1.7 miMoses Lake Conoco
2.4 miSuncrest Resort
3.6 miPotholes State Park
10.8 miMarDon Resort
11.5 miThe New Mar Don Resort
15.7 miSun Basin RV Park & Campground
15.7 miRest Area - Moses Lake, Westbound
15.8 miRest Area - Moses Lake, Eastbound
16.0 miRest Area - Moses Lake, Eastbound
16.7 miTraveling to Moses Lake by RV
Moses Lake sits along I-90 at exits 174-179, roughly halfway between Seattle and Spokane at about 175 miles from each city. I-90 through the Columbia Basin is flat and straight with easy driving for rigs of any size, a relaxing stretch after the Cascades mountain pass to the west or the Spokane hills to the east. WA-17 runs north-south through town connecting to Ephrata and Soap Lake to the north and Othello to the south. The terrain is wide-open irrigated farmland under big western skies, with excellent visibility in all directions. Fuel and full shopping are available at the I-90 exits, with Walmart, grocery stores, and auto parts shops in the commercial district. Summer temperatures regularly exceed 90 degrees on the basin floor, so plan your travel timing and make sure your rig's cooling systems are working well.
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Dump Station Costs in Moses Lake
Moses Lake dump station costs split a portion% free and a portion% paid. Columbia Basin pricing is straightforward and affordable, with paid dump access typically running $5 to $15. The agricultural economy keeps service costs reasonable compared to the recreation-driven pricing on the western side of the Cascades. Free dump options are a welcome bonus for I-90 through-travelers who are making a quick service stop between longer drives across the basin. Campground rates at private RV parks run $25 to $45 per night, with more affordable options available at county and state recreation areas around the lake.
Contact station for pricing details.
Prices may vary. Always confirm with the station before visiting.
What RVers Are Saying About Moses Lake
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Best Time to Visit Moses Lake by RV
Winter
Dec - Feb
20-40°F
Crowds: Low
Cold basin winters with occasional fog and ice on I-90 -- RV traffic drops significantly and some campground dump stations close seasonally.
Spring
Mar - May
40-75°F
Crowds: Medium
Warming temperatures bring bass anglers to the lake and birders to the wildlife refuges, with campgrounds opening and pleasant weather for outdoor activities.
Summer
Jun - Aug
60-100°F
Crowds: High
Peak season with hot temperatures driving heavy lake recreation traffic -- water skiing, swimming, and fishing fill the lake while I-90 travelers keep dump stations busy.
Fall
Sep - Nov
35-70°F
Crowds: Medium
Hunting season and fall bird migration bring visitors to the basin, with cooling temps and uncrowded lake access making fall a pleasant time for camping.
Explore the Moses Lake Area
The sand dunes area south of town offers OHV riding and unique desert scenery that contrasts sharply with the irrigated green farmland surrounding it. Moses Lake itself has multiple public boat launches and fishing access points -- the bass fishing is particularly good in the warmer shallow bays during spring and summer. If you're headed west toward the Cascades, dump your tanks and fill up on fuel in Moses Lake because the next major services are in Ellensburg about 100 miles away across the Vantage bridge and canyon country. The Columbia National Wildlife Refuge south of town offers excellent birding and hiking through coulees and lakes. Propane is available at multiple dealers along the I-90 commercial corridor through the city.
National Parks Nearby
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Read more →Frequently Asked Questions About Dump Stations in Moses Lake
Where can I dump my RV tanks in Moses Lake, Washington?
Moses Lake has {{stationCount}} dump stations along the I-90 corridor in the Columbia Basin of central Washington. Facilities serve both interstate through-travelers and the summer recreation crowd that comes for lake fishing, water sports, and the surrounding wildlife refuges.
Are there free dump stations in Moses Lake?
There are {{freeCount}} free dump stations in the Moses Lake area. Free access is valuable on the long I-90 corridor across the Columbia Basin where the distances between full-service towns can stretch to 50 miles or more through irrigated farmland.
Is Moses Lake a good overnight stop on I-90?
Moses Lake works well as an overnight stop roughly halfway between Seattle and Spokane on I-90. Several campgrounds and RV parks offer dump access alongside overnight parking, and the lake recreation adds value to what could otherwise be just a highway pit stop.
How much do dump stations cost in Moses Lake?
Paid dump stations in Moses Lake typically charge $5 to $15 for non-guest access. Columbia Basin pricing is affordable compared to the recreation-heavy communities on the western side of the Cascades, reflecting the area's practical agricultural economy.
What should I bring for dumping at Moses Lake stations?
Bring a sewer hose, disposable gloves, and a rinse hose for your dump kit. Summer temperatures in the Columbia Basin regularly exceed 95 degrees, so sunscreen and plenty of water are essential when handling tanks during the hot afternoon hours.
Where can I dump my RV tanks in Moses Lake, Washington?
Moses Lake has {{stationCount}} dump stations along the I-90 corridor in the Columbia Basin of central Washington. Facilities serve both interstate through-travelers and the summer recreation crowd that comes for lake fishing, water sports, and the surrounding wildlife refuges.
Are there free dump stations in Moses Lake?
There are {{freeCount}} free dump stations in the Moses Lake area. Free access is valuable on the long I-90 corridor across the Columbia Basin where the distances between full-service towns can stretch to 50 miles or more through irrigated farmland.
Is Moses Lake a good overnight stop on I-90?
Moses Lake works well as an overnight stop roughly halfway between Seattle and Spokane on I-90. Several campgrounds and RV parks offer dump access alongside overnight parking, and the lake recreation adds value to what could otherwise be just a highway pit stop.
How much do dump stations cost in Moses Lake?
Paid dump stations in Moses Lake typically charge $5 to $15 for non-guest access. Columbia Basin pricing is affordable compared to the recreation-heavy communities on the western side of the Cascades, reflecting the area's practical agricultural economy.
What should I bring for dumping at Moses Lake stations?
Bring a sewer hose, disposable gloves, and a rinse hose for your dump kit. Summer temperatures in the Columbia Basin regularly exceed 95 degrees, so sunscreen and plenty of water are essential when handling tanks during the hot afternoon hours.
Are there free dump stations in Moses Lake?
Yes — there are free RV waste disposal options available near Moses Lake.


