Need drinking water for a cistern or house tank? That is a different truck.
406 Potable — 406potable.comRoundup, Montana · Non-potable bulk water
406 H2O LLC is a family-run tender outfit. Truck-mounted pumps fill from remote sources in minutes. Tenders from 1,000 to 4,000 gallons, including an LMTV 4×4 that will go off-road.
This is not drinking water. Cistern fills go to 406potable.com.
#406-1 · LMTV 4×4 · non-CDL 4×4
1,000–4,000
gallon tenders
4×4 LMTV
extreme off-road
400+
GPM pump
8-inch
dump valve
Owned equipment
#406-1 · Non-CDL · off-road
Wildland fire tender
Military-spec 4×4, and the only non-CDL truck in the fleet. This is the tender that still gets there when the two-track is gone, the hill is burned over, and a highway truck has to wait on the road.
#406-2 · Biggest load
4,000 gallons
The 4,000-gallon Peterbilt. CDL required. Dust, compaction, livestock tanks, and fire fills when you need a full load in fewer trips.
#406-9 · Workhorse
3,000 gallons
A 3,000-gallon CDL tender for the jobs that do not need the Peterbilt and do not need the 4×4 — roads, sites, and tanks we can reach on rubber.
What we haul for
Non-potable
Load in minutes from remote sources and put water where the job is — tanks, pits, roads, and sites the hydrant will not reach.
Learn moreRoads & sites
Water the road, or add calcium chloride when you want the dust to stay down and the surface to firm up.
Learn moreLivestock & range
Temporary water while a well is down, a remote tank so cows use the back of the section, ditch burning, windbreaks.
Learn moreJobsites
Non-potable water trucks for dust, compaction, remote drilling, and new landscaping.
Learn moreWildfire & home prep
Dry hydrants, above-ground pools, and Type 2 and Type 3 tender work for federal and state agencies.
Learn moreSize a load
A 4,000-gallon Peterbilt is the biggest load. Fleet runs 1,000–4,000 gallons.
That is about 1 load on a 4,000-gallon Peterbilt. Smaller jobs can go on the 3,000-gallon tender or the 4×4 LMTV. Call 406-91-WATER to lock in a time.
More than a tank
Truck-mounted pumps pull from ponds, pits, pools, and other available water so we are not tied to a hydrant.
The LMTV 4×4 wildland tender runs country a highway truck will not — burned-over hills, two-track, and firelines that need a high-clearance 4×4.
Spray from the front, sides, and rear. High-pressure nozzles clean roadways and parking lots and knock down demolition dust.
We carry a large quantity of 2½-inch fire hose to pump water to locations the truck cannot get to.
Service area
Private customers in Musselshell, Yellowstone, and Fergus counties. Federal and state fire work — we travel where the incident needs a tender.
Home county. Roundup and the country around it.
Private customers into the Billings side of the county.
Lewistown, Grass Range, Winnett, and ranch country.
Sister company · drinking water
Drinking water is a different truck. 406 Potable hauls cistern and household water on a dedicated potable tank. First cistern deliveries are lined up for November 2026 around Roundup, Melstone, Lavina, Grass Range, Winnett, and Lewistown.
Family-run. Customers come first. Call and we will tell you honestly whether we can make the haul.
