Pure Water | Workforce Camps
Every gallon a remote camp uses arrives by truck.
A workforce camp goes where the work is: an oilfield lease, a mine, a pipeline route or a forward site, on any continent, and almost never next to a water main. So the water comes in by tanker and the wastewater goes back out the same way, every day the camp is occupied. The WaHa Vaporator® makes pure water on site, out of the air the camp is already standing in, on the power the camp already has. No well to drill, and no tanker to wait on.
The WaHa Vaporator® supplies pure water at remote workforce camps anywhere in the world by harvesting water vapor from ambient air on site, so a camp with no pipeline connection does not depend on trucked deliveries. The platform operates from −20°C to 55°C and at relative humidity as low as 10 percent, holding rated output down to 1 gram of water per kilogram of air, which covers the hot, dry conditions where most remote camps sit. The water produced is distilled-grade, with no PFAS, no microplastics, no heavy metals, no VOCs and no bacteria.
The problem
The water bill is really a trucking bill.
The load itself is set by regulation. US OSHA's temporary labor camp standard, 29 CFR 1910.142, deems a water supply adequate if it can deliver 35 gallons per person per day to the campsite, at a peak rate of 2.5 times the average hourly demand. That figure doesn't move because a camp is remote. What moves is the difficulty of meeting it.
That's why water is so often the hardest part of standing up a camp. With no main to tie into, meeting the load means a tanker schedule. The cost of a load climbs with every mile from the fill point, so the same water is more expensive at the sites that are hardest to reach. Supply is only as good as the haulers arriving, which is a problem the camp manager cannot solve on a bad weather day. And the trucks bring their own bill: fuel burned, access roads worn, dust raised over the camp, and one more class of heavy vehicle moving on unpaved roads.
How it works
How can an air-to-water system work in a desert camp?
Camp country feels dry, and the forecast agrees with that feeling. Hot air still carries real water. What matters is the mixing ratio, the actual mass of water vapor in each kilogram of air, and a hot afternoon in an arid basin can hold several grams per kilogram while the relative humidity reads in the teens. Warm air simply has room for more vapor than cool air does.
The WaHa Vaporator® is specified against mixing ratio. It holds rated output down to 1 gram of water per kilogram of air, at relative humidity as low as 10 percent, across a −20°C to 55°C operating range. That is one platform configured for the site: the desiccant wheel is matched to the site's humidity profile, and sub-freezing installations add freeze protection for the water line. Compressor-based air-to-water systems chill air down to a dew point to get water out of it, so they derate hard in exactly the conditions a remote camp lives in.
Inside the machine, a sealed thermodynamic engine drives a desiccant wheel coated with a novel solid desiccant: a MOF, built on the MOF chemistry awarded the 2025 Nobel Prize in Chemistry. The engine recovers the heat given off as the vapor turns back into liquid and feeds it into the next cycle, so there are no regeneration heaters to fuel and no exhaust ducting to route. It runs on the power the camp already has, whether that is grid, an on-site generator or solar, and it produces inexpensive dry air alongside the water, which takes load off cooling in hot climates.
The economics
The water load is fixed. The haul is the variable.
A camp has to put the same 35 gallons per person per day in front of its people, per the US OSHA standard above, whether the fill point is a short run down a highway or half a day out over unpaved road. The whole difference between those two camps is logistics: more miles per load, more loads on the road, more days when the schedule is the thing that fails.
On-site production takes that variable out. The WaHa Vaporator® makes the water where the water is used, so the supply chain for water ends at the property line. What replaces it is electricity the camp is already paying for.
Supply that doesn't wait on a hauler
Water is produced at the camp, on the camp's own power. A full camp isn't standing by for a tanker that got delayed, rerouted or turned back by weather.
Fewer truck movements
Taking water hauling off the access road cuts fuel burn, road wear and airborne dust, and it removes a share of the heavy-vehicle exposure that comes with it. Neighbors and host communities notice that too.
Coverage where camps actually sit
Against the utility standard of at least 90% of rated daily production on at least 90% of days, the WaHa Vaporator® covers 70.5% of global land and 83.4% of water-stressed land. Compressor-based AWG reaches 7.0% of global land and 1.0% of water-stressed land. See Where It Works and the AWG Technology Platforms Comparison.
Water quality set at the source
The water condenses in a sealed chamber, isolated from the ambient air stream. It's distilled-grade, with no PFAS, no microplastics, no heavy metals, no VOCs and no bacteria, and it's independently tested against US EPA, UAE.S 149 and GSO 149 drinking water standards. NSF, UL and CE certifications are in progress.
Water logistics
What does trucking water to your site actually cost?
Camps and remote sites without a water main truck their water in. Driver time, truck rental, fuel and the water itself all add up, and the total rises with every mile from the fill point. Put in your distance to see the breakdown.
Adjust assumptions
- Driver $0
- Truck rental $0
- Fuel $0
- Source water $0
Total per load: $0, for a 20 m³ tanker (5,283 gal)
Cost per cubic meter as distance increases
Planning estimates only, not a quote. The defaults are recent national averages, and local wages, fuel, road conditions and remote-site premiums can push the real number higher. Adjust the assumptions above for your location.
See how this compares to making water on site
The WaHa Vaporator® makes pure water on site from the air. There's no truck, no driver, no fuel and no delivery schedule, so the cost doesn't climb with distance the way trucking does. Tell us about your site and we'll send you a comparison built around the numbers you just entered.
How it's paid for
Nobody has to buy a machine.
WaHa can build, own and operate the system on site. The camp pays a fixed monthly cost for the water it gets, so there's no capital request to write and no maintenance budget to defend. For a camp funded against the length of a project, that's usually a bigger obstacle than the technology is.
It also trades a moving number for a flat one. A hauling bill rises with the price of diesel and with how hard it is to find drivers for the run, and the camp finds out after the fact. A fixed monthly cost for water doesn't move with either.
The system scales with the camp. Beds get added, capacity gets added, and when the job finishes the system moves to the next site instead of being written off with the pad.
Adoption
Put one in, keep the trucks on call.
Adoption doesn't mean rebuilding the camp. The unit ties into the power already on site and feeds the camp's existing storage and distribution, and the trucked deliveries stay on the schedule while the system proves out, so nobody is exposed if the pilot test is inconclusive. Service is light. Any HVAC technician can handle servicing, and there are no chemicals, no membranes, no brine and no infrastructure to build.
To request a site evaluation: Give us the bed count, the location, the current water source and the power available on site, and WaHa will size the system against the camp's real load and run a measured pilot.
Where it applies
Where people are housed and the water has to travel.
Oilfield workforce camps
Lodges and crew camps on leases with no pipeline connection, where daily water arrives by tanker over lease roads.
Remote mining camps
Worker drinking water for crews housed at the deposit. This is the camp's domestic supply. Mine process and dust suppression water is a different problem at a different scale, and WaHa is not addressing it here.
Construction and infrastructure camps
Worker camps on remote linear infrastructure builds: roads, rail, pipelines, transmission. These run only for the length of the project, so a system that can be relocated matters.
Remote industrial sites
Processing plants, compressor stations, research stations and anywhere a small resident crew is kept far from services.
Marine and island sites
Rigs and tankers make their own water, but the desalination plant is a long way from the tap. What gets produced clean then travels through tanks and piping before anyone drinks it, and drinking water quality is decided on that last leg. Generating at the point of use skips it. Islands and off-grid coastal sites have the older version of the problem: water that arrives by barge or truck, or doesn't when the weather turns.
Forward and disaster-response camps
Camps stood up fast where infrastructure is absent or broken. The Sphere Handbook sets a minimum of 15 litres per person per day for basic survival needs; WHO uses 20 litres.
The record from the machines that are running.
A WaHa Vaporator® has also run on site at a remote location for a major operator, making water from the local air in real field conditions. The full record from the monitored pilot machines, run hours included, is on the pilot record page.
Our technology is protected in depth: explore the WaHa patent portfolio.
Questions operators ask
Workforce camp water FAQ
How much water does a workforce camp need per person per day?
In the United States, OSHA's temporary labor camp standard, 29 CFR 1910.142, deems a water supply adequate if it can deliver 35 gallons per person per day to the campsite, at a peak rate of 2.5 times the average hourly demand. That is the full domestic load: drinking, cooking, bathing, laundry. Camps outside US jurisdiction work to their own national rules, and humanitarian and forward camps often plan against much lower survival minimums.
Can an atmospheric water generator work in a desert camp?
Yes, if it's specified on mixing ratio instead of relative humidity. Hot desert air carries real water even when the forecast humidity looks low. The WaHa Vaporator® holds rated output down to 1 gram of water per kilogram of air, at relative humidity as low as 10 percent, so it keeps producing in conditions where compressor-based systems, which chill air to a dew point, fall off badly.
Is water made from air safe to drink at a workforce camp?
The WaHa Vaporator® produces distilled-grade water with no PFAS, no microplastics, no heavy metals, no VOCs and no bacteria. It's independently tested against US EPA, UAE.S 149 and GSO 149 drinking water standards, and third-party certifications (NSF, UL, CE) are in progress. The water condenses in a sealed chamber, isolated from the ambient air stream.
What powers an on-site water system at an off-grid camp?
Whatever the camp is already running on. The WaHa Vaporator® takes grid power, an on-site generator or solar, so there's no second fuel logistics chain to set up. The power source changes the operating cost. It doesn't change whether the machine runs.
What maintenance does the system need at a remote site?
Very little. The air filters are washable, so they get cleaned on a schedule instead of replaced. The water filters and UV lamp only sit in the loop when the machine is producing drinking water, and on many sites they're optional. Any HVAC technician can service the machine, because it's built from standard refrigeration components, and there are no chemicals to dose, no membranes to replace, no brine to dispose of and no infrastructure to maintain.
Which camps are a poor fit for on-site water generation?
A camp sitting next to a cheap, reliable water main. If tying into a pipe is straightforward and delivered water is inexpensive, that's the simpler answer and we'll say so. The case for making water on site strengthens the farther out the camp is and the harder its deliveries are to count on.
Does the camp have to buy the system?
No. WaHa can put the system in and run it, so the camp pays a fixed monthly cost for water instead of raising capital for equipment. Camps that would rather own the asset can buy it outright.
Pure Water. Inexpensive Dry Air. Anywhere.
Tell us where the camp is and how many beds it has. WaHa will size the water against the load the camp actually has to meet.
Start a site evaluation