RV Dump Stations In Ontario, California
34.0633° N, 117.6509° W
Quick Overview
Ontario sits right at the crossroads of the Inland Empire, where I-10, I-15, and SR-60 all meet, so it is one of the easier Southern California stops to service your rig on a travel day. If you are rolling in off the desert from Joshua Tree or the Colorado River, or heading up the Cajon Pass toward Las Vegas, this is a logical place to empty the tanks before or after the metro traffic. The city itself does not run a big municipal RV dump, so most travelers use a mix of nearby campground stations, a couple of gas and travel centers, and the regional parks around Chino and the foothills.
The free-versus-paid picture here leans paid, which is normal for greater Los Angeles. Expect to pay roughly $10 to $15 at most campground and private dump stations, and the Elks Lodge in town takes a donation of about $15 for non-members. Truly free dumps are scarce this close to LA, so the money-saving move is to dump where you are already paying to camp. Prado Regional Park in nearby Chino, a San Bernardino County park with a large RV campground, has a dump station and potable water, and it is the closest full-service public option. To the south, the City of Riverside runs a public RV dump station worth the short hop down I-15 or SR-60 if you want a reliable, inexpensive stop. See the Riverside Public Works RV dump page for hours and the current fee.
For services, Ontario is loaded. The Costco on Auto Center Drive sells cheap propane, big-box stores and grocery are everywhere, and RV and trailer parts are easy to find along the I-10 and I-15 commercial corridor. Potable water is available at the campground stations and the regional parks. If you are staging here before a desert run, top off water and propane, dump the tanks, and stock groceries while you have real city prices, because everything gets pricier and farther apart once you head east into the desert or north over the pass.
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Gear for Your Trip to Ontario
All Dump Stations Near Ontario
| Station Name | Distance | Rating | Category | Cost |
|---|---|---|---|---|
| Arrow Trailer Supplies | 1.5 mi | 4.5 | Dump Station | Varies |
| Auto & RV Specialists | 3.3 mi | N/A | Dump Station | Varies |
| The Paint Department | 4.3 mi | N/A | Dump Station | Varies |
| Fairplex RV & Boat Storage | 6.7 mi | N/A | Dump Station | Varies |
| Toy Storage | 6.8 mi | N/A | Dump Station | Varies |
| Victoria RV & Shelf Storage | 7.8 mi | N/A | Dump Station | Free |
| Prado Regional Park | 7.8 mi | N/A | Dump Station | Varies |
| East Shore RV Park | 8.4 mi | N/A | Dump Station | Free |
| Agate Park | 11.1 mi | N/A | Dump Station | Free |
| Mt Baldy Ranch RV Park | 12.0 mi | N/A | Dump Station | Free |
Arrow Trailer Supplies
1.5 miAuto & RV Specialists
3.3 miThe Paint Department
4.3 miFairplex RV & Boat Storage
6.7 miToy Storage
6.8 miVictoria RV & Shelf Storage
7.8 miPrado Regional Park
7.8 miEast Shore RV Park
8.4 miAgate Park
11.1 miMt Baldy Ranch RV Park
12.0 miTraveling to Ontario by RV
Ontario is about as connected as it gets. I-10, the San Bernardino Freeway, runs east-west through town toward LA one way and the desert the other. I-15 crosses north-south on the west side heading to San Diego south or Las Vegas over the Cajon Pass north. SR-60 gives you a less-congested east-west alternative toward Riverside. There are no low bridges or weight limits on these interstates, so any size rig is fine, but plan around the traffic: the I-10/I-15 interchange backs up hard at rush hour, and big rigs are better off moving midday or late evening.
California does not allow overnight camping on interstates or their shoulders, and rest-area stays are capped at eight hours, so this is not a boondocking stop. For overnight parking, use a campground, a truck-friendly travel center, or one of the store lots that still permit it, and confirm with the manager first. Ontario International Airport sits right in town if you are swapping drivers or picking up guests, and fuel and diesel are plentiful along both interstates.
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Before You Go: RV Trip Essentials
Dump stations are only one piece of the trip puzzle. Before you set out for your trip to Ontario, California, it's worth taking thirty minutes to check that the basics are in place — the four areas below are where unprepared RVers most often get stung.
Check your RV insurance coverage
A standard auto policy rarely covers a Class A, Class C, or travel trailer the way a dedicated RV insurance policy does. If you're financing a motorhome, lenders typically require comprehensive and collision; full-timers should additionally price in vacation liability and personal belongings coverage. Rates vary widely by state and travel pattern — compare quotes from multiple RV-focused carriers before each season.
Know your roadside assistance options
RV-specific roadside plans tow motorhomes and trailers that regular AAA coverage won't touch — flat beds, mobile mechanics, tire service for duallies, and even emergency lockouts at remote campgrounds. Good plans cover your spouse and trailer even if you're driving a separate vehicle, and some include trip interruption reimbursement if a breakdown costs you a reservation.
Decide about an extended warranty early
Original manufacturer warranties on new RVs typically run 12–24 months — shorter than most buyers realize. An extended service contract (essentially a mechanical breakdown policy) covers the appliances, slides, levelling systems, and drivetrain components that can run $3,000–$10,000 to replace. The time to price one is before the factory coverage expires, not after something breaks.
Set up a travel rewards card for fuel and fees
A no-annual-fee travel or gas rewards card pays for itself on a single month of RV travel. Expect to spend $400–$800 per week combined on fuel, campgrounds, and propane — 3–5% cash back on gas alone covers the next oil change. For bigger trips, a sign-up bonus can offset campground fees for the whole season.
RVingLife is supported by advertising. Third-party ads on this page may include insurance quotes, roadside plans, warranty coverage, or financial products relevant to the topics above. We don't endorse any specific provider — compare multiple offers before you commit. Privacy policy.
Dump Station Costs in Ontario
Plan on paying to dump around Ontario; free stations are rare this close to Los Angeles. Most campground and private dump stations run about $10 to $15, and the Elks Lodge asks a roughly $15 donation from non-members. If you are camping at Prado Regional Park or another local campground, dumping is usually included or cheap for registered guests, which is the best value, so time your departure to empty tanks on the way out.
The City of Riverside public RV dump station is the closest thing to a bargain municipal option and is worth the short drive down SR-60 or I-15. To stretch your dollar, combine trips: dump, fill fresh water, and buy cheap Costco propane in one loop rather than paying separately around town. Fuel is competitive here too, so top off diesel before you head east into the pricier desert corridor.
Contact station for pricing details.
Prices may vary. Always confirm with the station before visiting.
What RVers Are Saying About Ontario
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Best Time to Visit Ontario by RV
Winter
Nov - Feb
42°F - 66°F
Crowds: Low
Mild with no hard freeze; dump stations and water stay open, making Ontario a comfortable snowbird staging stop.
Spring
Mar - May
50°F - 75°F
Crowds: Medium
Pleasant with occasional rain; a good time to service the rig before the summer heat and desert season.
Summer
Jun - Aug
66°F - 95°F
Crowds: Medium
Hot and dry; dump early so tanks do not cook in the sun and top off fresh water before heading into the desert.
Fall
Sep - Oct
55°F - 82°F
Crowds: Medium
Warm with Santa Ana winds that bring dust and fire risk; nothing freezes, so stations stay open year-round.
Explore the Ontario Area
Treat Ontario as your supply-and-service stop, not your scenic one. Fill propane at the Costco on Auto Center Drive, which usually beats the campground and hardware-store prices, though the lot is tight for a big rig, so go early. Grab potable water at Prado Regional Park or whichever campground you use to dump, and top off before heading into the desert where water gets scarce and expensive. For dump etiquette, wear gloves, rinse the hose, use the non-potable spigot for flushing tanks, and never rinse a sewer hose at a drinking-water fill.
Seasonally, this is a year-round dumping area since nothing freezes down here, but summer heat can be brutal, so dump early and keep tanks from cooking in the sun. Watch for Santa Ana winds in fall, which kick up dust and raise fire risk. RV and trailer parts and service are easy to find along the I-10 and I-15 corridor if you need a repair before pushing on toward Joshua Tree or the mountains.
National Parks Nearby
Frequently Asked Questions About Dump Stations in Ontario
Where can I dump my RV tanks in Ontario, California?
Ontario does not run a large city dump station, so most travelers use nearby campground and private stations plus a couple of regional parks. Prado Regional Park in Chino, a San Bernardino County park just southwest of town, has a dump station and potable water and is the closest full-service public option. The Elks Lodge in Ontario allows dumping for a donation. A short drive down SR-60 or I-15 puts you at the City of Riverside public RV dump station, which is reliable and inexpensive. With many stations listed nearby, you have several choices within a 20-minute radius.
Is there a free RV dump station in Ontario?
Truly free dump stations are hard to come by this close to Los Angeles. Most stations in and around Ontario charge roughly $10 to $15, and the Elks Lodge asks about a $15 donation from non-members. The cheapest approach is to dump where you are already paying to camp, since registered campers at places like Prado Regional Park usually dump for free or a small fee on their way out. The City of Riverside public station is the closest thing to a low-cost municipal option. If free is a must, plan to combine your dump with a paid campground stay to avoid a separate charge.
How much does it cost to dump near Ontario?
Budget about $10 to $15 for a standalone dump in the Ontario area, which is typical for greater Los Angeles. The Elks Lodge takes a roughly $15 donation from non-members. If you camp locally at Prado Regional Park or a private RV park, dumping is often included with your site or costs just a few dollars, making it the best value. To save money, combine your stops: dump the tanks, fill fresh water, and buy inexpensive propane at the Costco on Auto Center Drive in one loop instead of paying for each separately at different vendors around town.
Can I dump my tanks on the way to Joshua Tree or the desert?
Yes, and Ontario is a smart place to do it. Once you head east on I-10 or over the Cajon Pass on I-15, services thin out and prices climb, so empty your tanks and top off fresh water before you leave the metro area. Prado Regional Park and the local campground stations handle black and gray dumping, and Riverside public station is a quick detour south. Nothing freezes here, so it works year-round. Dump, fill water, and stock groceries in Ontario while you still have city prices, then roll into the desert with empty tanks and full fresh water.
Where can I get propane near Ontario?
Propane is easy in Ontario. The Costco on Auto Center Drive typically has the lowest per-gallon price in the area, though the lot is busy and tight for a big rig, so arrive early and take it slow. Beyond Costco, U-Haul dealers, Tractor Supply, and RV dealers along the I-10 and I-15 corridor refill tanks and swap cylinders. If you are staging here before a desert or mountain trip, fill propane at the same time you dump and take on water, since propane gets pricier and harder to find once you leave the Inland Empire for Joshua Tree or the high country.
Where do I fill fresh water near Ontario?
Potable water is available at the campground dump stations and regional parks around Ontario, including Prado Regional Park in Chino, which has both a dump station and drinking-water fill. Most private RV parks let registered guests fill fresh tanks, and some standalone dump stations have a potable spigot separate from the non-potable rinse hose. Always fill from the clearly marked drinking-water tap, never from the sewer-rinse spigot, and use your own food-grade hose. Top off before heading east into the desert, where water becomes scarce and expensive. Filling water when you dump saves you a second stop.
Are there RV parks with dump stations near Ontario?
Yes. Prado Regional Park in nearby Chino is the standout public option, with a large RV campground, a dump station, and potable water. Several private RV parks around the Inland Empire, from Ontario out toward Rancho Cucamonga and Fontana, offer full hookups and dump access for guests. If you want to combine a night stay with servicing, book a park with sewer hookups so you can dump right at your site. For a quick pass-through dump without camping, the Elks Lodge in town and the Riverside public station down SR-60 are your simplest paid stops.
Does Ontario allow RV overnight parking?
California does not permit overnight camping on interstates, freeways, or their shoulders, and state rest areas cap stays at eight hours, so Ontario is not a place to boondock along the road. The city also restricts oversized-vehicle street parking in many areas. For a legal overnight, use a campground like Prado Regional Park, a truck-friendly travel center, or a store lot that still allows it, and always confirm with the manager first. If you just need to service the rig and move on, dump your tanks, fill water, and continue to a campground for the night rather than risking a ticket.
What highways serve Ontario for RV travel?
Ontario sits at a major crossroads. I-10, the San Bernardino Freeway, runs east-west through town toward LA one way and the desert the other. I-15 crosses north-south on the west side, heading to San Diego south or Las Vegas over the Cajon Pass north. SR-60 offers a less-congested east-west alternative toward Riverside. All are full-size interstates with no low bridges or weight limits, so any rig is fine, but the I-10/I-15 interchange jams badly at rush hour. Move midday or late evening with a big rig, and use SR-60 to skip some of the worst I-10 congestion.
Is there a dump station open in winter near Ontario?
Yes. Ontario sits in a low, mild part of Southern California where hard freezes essentially never happen, so dump stations, water spigots, and campgrounds stay open and functional all winter. You do not need to winterize just to travel through here, and daytime highs in the 60s make winter one of the more comfortable times to service the rig. Prado Regional Park, local RV parks, and the Riverside public station all operate year-round. If you are a snowbird staging for the desert, Ontario is a dependable cold-season stop for dumping tanks, filling water, and buying propane before you push on.
What should I bring to dump my tanks in Ontario?
Bring the basics: disposable gloves, a good sewer hose with a clear elbow so you can see when the tank runs clear, and a separate non-potable hose for rinsing. Have a bottle of hand sanitizer, some tank treatment for the black tank, and a few dollars or small bills for the dump fee or Elks Lodge donation. A pair of nitrile gloves and a rag keep things sanitary. If you plan to fill fresh water too, carry a dedicated food-grade white hose and keep it well away from the sewer hose. Most local stations charge $10 to $15, so cash is handy.
Are there roads near Ontario an RV should avoid?
On the interstates around Ontario there are no low bridges or weight limits, so I-10, I-15, and SR-60 are all fine for any rig. The cautions are traffic and grades, not clearance. The I-10/I-15 interchange snarls at rush hour, and if you head north on I-15 over the Cajon Pass toward Vegas, expect a long climb and descent where you should watch engine and brake temps. Heading up into the San Gabriel or San Bernardino mountains on smaller state routes, watch for tight curves and steep grades. Stick to the interstates for the easiest big-rig travel.
Where are the nearest campgrounds with dump stations to Ontario?
The closest full-service public option is Prado Regional Park in Chino, just southwest of Ontario, a San Bernardino County park with a large RV campground, a dump station, and potable water. Around the Inland Empire you will also find private RV parks toward Rancho Cucamonga, Fontana, and Chino Hills with full hookups and guest dump access. Farther afield, the mountains above town and the desert to the east add more campgrounds if you are staying the night. For a simple dump-and-go without camping, the Elks Lodge in Ontario and the Riverside public RV dump station are the handiest paid stops.
Where can I dump my RV tanks in Ontario, California?
Ontario does not run a large city dump station, so most travelers use nearby campground and private stations plus a couple of regional parks. Prado Regional Park in Chino, a San Bernardino County park just southwest of town, has a dump station and potable water and is the closest full-service public option. The Elks Lodge in Ontario allows dumping for a donation. A short drive down SR-60 or I-15 puts you at the City of Riverside public RV dump station, which is reliable and inexpensive. With many stations listed nearby, you have several choices within a 20-minute radius.
Is there a free RV dump station in Ontario?
Truly free dump stations are hard to come by this close to Los Angeles. Most stations in and around Ontario charge roughly $10 to $15, and the Elks Lodge asks about a $15 donation from non-members. The cheapest approach is to dump where you are already paying to camp, since registered campers at places like Prado Regional Park usually dump for free or a small fee on their way out. The City of Riverside public station is the closest thing to a low-cost municipal option. If free is a must, plan to combine your dump with a paid campground stay to avoid a separate charge.
How much does it cost to dump near Ontario?
Budget about $10 to $15 for a standalone dump in the Ontario area, which is typical for greater Los Angeles. The Elks Lodge takes a roughly $15 donation from non-members. If you camp locally at Prado Regional Park or a private RV park, dumping is often included with your site or costs just a few dollars, making it the best value. To save money, combine your stops: dump the tanks, fill fresh water, and buy inexpensive propane at the Costco on Auto Center Drive in one loop instead of paying for each separately at different vendors around town.
Can I dump my tanks on the way to Joshua Tree or the desert?
Yes, and Ontario is a smart place to do it. Once you head east on I-10 or over the Cajon Pass on I-15, services thin out and prices climb, so empty your tanks and top off fresh water before you leave the metro area. Prado Regional Park and the local campground stations handle black and gray dumping, and Riverside public station is a quick detour south. Nothing freezes here, so it works year-round. Dump, fill water, and stock groceries in Ontario while you still have city prices, then roll into the desert with empty tanks and full fresh water.
Where can I get propane near Ontario?
Propane is easy in Ontario. The Costco on Auto Center Drive typically has the lowest per-gallon price in the area, though the lot is busy and tight for a big rig, so arrive early and take it slow. Beyond Costco, U-Haul dealers, Tractor Supply, and RV dealers along the I-10 and I-15 corridor refill tanks and swap cylinders. If you are staging here before a desert or mountain trip, fill propane at the same time you dump and take on water, since propane gets pricier and harder to find once you leave the Inland Empire for Joshua Tree or the high country.
Where do I fill fresh water near Ontario?
Potable water is available at the campground dump stations and regional parks around Ontario, including Prado Regional Park in Chino, which has both a dump station and drinking-water fill. Most private RV parks let registered guests fill fresh tanks, and some standalone dump stations have a potable spigot separate from the non-potable rinse hose. Always fill from the clearly marked drinking-water tap, never from the sewer-rinse spigot, and use your own food-grade hose. Top off before heading east into the desert, where water becomes scarce and expensive. Filling water when you dump saves you a second stop.
Are there RV parks with dump stations near Ontario?
Yes. Prado Regional Park in nearby Chino is the standout public option, with a large RV campground, a dump station, and potable water. Several private RV parks around the Inland Empire, from Ontario out toward Rancho Cucamonga and Fontana, offer full hookups and dump access for guests. If you want to combine a night stay with servicing, book a park with sewer hookups so you can dump right at your site. For a quick pass-through dump without camping, the Elks Lodge in town and the Riverside public station down SR-60 are your simplest paid stops.
Does Ontario allow RV overnight parking?
California does not permit overnight camping on interstates, freeways, or their shoulders, and state rest areas cap stays at eight hours, so Ontario is not a place to boondock along the road. The city also restricts oversized-vehicle street parking in many areas. For a legal overnight, use a campground like Prado Regional Park, a truck-friendly travel center, or a store lot that still allows it, and always confirm with the manager first. If you just need to service the rig and move on, dump your tanks, fill water, and continue to a campground for the night rather than risking a ticket.
What highways serve Ontario for RV travel?
Ontario sits at a major crossroads. I-10, the San Bernardino Freeway, runs east-west through town toward LA one way and the desert the other. I-15 crosses north-south on the west side, heading to San Diego south or Las Vegas over the Cajon Pass north. SR-60 offers a less-congested east-west alternative toward Riverside. All are full-size interstates with no low bridges or weight limits, so any rig is fine, but the I-10/I-15 interchange jams badly at rush hour. Move midday or late evening with a big rig, and use SR-60 to skip some of the worst I-10 congestion.
Is there a dump station open in winter near Ontario?
Yes. Ontario sits in a low, mild part of Southern California where hard freezes essentially never happen, so dump stations, water spigots, and campgrounds stay open and functional all winter. You do not need to winterize just to travel through here, and daytime highs in the 60s make winter one of the more comfortable times to service the rig. Prado Regional Park, local RV parks, and the Riverside public station all operate year-round. If you are a snowbird staging for the desert, Ontario is a dependable cold-season stop for dumping tanks, filling water, and buying propane before you push on.
What should I bring to dump my tanks in Ontario?
Bring the basics: disposable gloves, a good sewer hose with a clear elbow so you can see when the tank runs clear, and a separate non-potable hose for rinsing. Have a bottle of hand sanitizer, some tank treatment for the black tank, and a few dollars or small bills for the dump fee or Elks Lodge donation. A pair of nitrile gloves and a rag keep things sanitary. If you plan to fill fresh water too, carry a dedicated food-grade white hose and keep it well away from the sewer hose. Most local stations charge $10 to $15, so cash is handy.
Are there roads near Ontario an RV should avoid?
On the interstates around Ontario there are no low bridges or weight limits, so I-10, I-15, and SR-60 are all fine for any rig. The cautions are traffic and grades, not clearance. The I-10/I-15 interchange snarls at rush hour, and if you head north on I-15 over the Cajon Pass toward Vegas, expect a long climb and descent where you should watch engine and brake temps. Heading up into the San Gabriel or San Bernardino mountains on smaller state routes, watch for tight curves and steep grades. Stick to the interstates for the easiest big-rig travel.
Where are the nearest campgrounds with dump stations to Ontario?
The closest full-service public option is Prado Regional Park in Chino, just southwest of Ontario, a San Bernardino County park with a large RV campground, a dump station, and potable water. Around the Inland Empire you will also find private RV parks toward Rancho Cucamonga, Fontana, and Chino Hills with full hookups and guest dump access. Farther afield, the mountains above town and the desert to the east add more campgrounds if you are staying the night. For a simple dump-and-go without camping, the Elks Lodge in Ontario and the Riverside public RV dump station are the handiest paid stops.
Are there free dump stations in Ontario?
Yes — there are free RV waste disposal options available near Ontario.
All Dump Stations Near Ontario (120)
RV Dump StationsArrow Trailer Supplies
RV Dump StationsAuto & RV Specialists
RV Dump StationsThe Paint Department
RV Dump StationsPrado Regional Park
RV Dump StationsToy Storage
RV Dump StationsFairplex RV & Boat Storage
RV Dump StationsVictoria RV & Shelf Storage
RV Dump Stations



