On-Site Hydration Services brings bottled water refill station rentals to Boulder races, job sites, federal campuses and city projects. Our Signature Series trailer shows up full, gets set level, and pours chilled, filtered water from four bottle filling stations on the first day. Call us now or request a free quote with your dates and head count. We will confirm a delivery window and help you pick the right spot before the trailer ever leaves the yard.
See the Signature Series water station specs
Fifty thousand people at a Memorial Day race do not need water jugs on a folding table. They need filling stations sized to the crowd, set where the lines actually form, and kept full until the last walker crosses the line. The Bolder Boulder drew more than 54,000 runners and walkers in 2007 and still finishes inside Folsom Field, so that is the scale we plan for here. On-Site Hydration Services works from your head count, your hours and your map, then places stations so nobody waits in a long line for a drink. We are SAM.gov registered, licensed and insured, part of an A+ BBB rated network, and we keep a 99.9% incident-free record. Call us or request a quote early, and we will lock your stations in before the rest of your vendor list fills up.
One Signature trailer can pour for a weekend concert and be working a slab pour a couple of days later. Hiring one company for your events and a separate one for your worksites makes no sense. Either way, the planning, the delivery, and the refills are ours.
The onboard cooling unit keeps the tank genuinely cold all the way through a Boulder afternoon, and that single detail carries the whole thing. Warm water is water people abandon, and midsummer is exactly when a crew or a crowd is drinking the most. Cold water gets finished, and finishing it is what keeps heat illness off the site.
Typical Boulder deliveries land in about 45 minutes, and we keep emergency runs going around the clock whenever a heat advisory or a power shutoff hits Boulder County. The morning a foreman finds his 40-person crew stuck with one warm cooler, speed is the whole game.
One rule sits under every job we take: water that people walk past might as well not be there. We've stood on a bare Boulder site and watched shrink-wrapped pallets cook next to the job-trailer while the crew baked thirty yards off. We've watched the opposite too, a chilled station ten steps off the work face run bone-dry twice inside one shift. Everything that matters lives in the distance between those two pictures. Which is why we don't drop a unit and disappear. We match it to your headcount or your gate count, set the refill rhythm to how hard you're really pulling on it, and treat a heat call the way you'd want your own treated, meaning right now, because out here one hot hour can swing the whole day.
Ready for canyon and foothill sites. A lot of Boulder County work sits up Boulder Canyon, Fourmile Canyon or Sunshine Canyon on narrow roads. The 3,100-pound Signature Series tows up those roads and fits a gravel pullout, so mountain crews and events get the same water as a site in town.
“Two trailers at the finish meant our runners were not stuck in one long line. The crew showed up the night before and had everything filled and level before we even set up the chute.”
“Our guys drink a lot more water when it is cold and twenty steps away. We stopped buying cases of bottles the first week.”
“They walked the lot with me and picked a spot I would not have thought of. Good call, it kept the line away from the gate.”
Downtown events and building work happen on tight lots with little room for trucks, so we plan early morning deliveries and pick spots that keep sidewalks and storefronts clear.
Game days, move-in week and campus construction all land around the Hill, so delivery times get planned around class changes and stadium traffic.
North Boulder mixes newer housing, shops and light industrial space. Job sites here often have room for a trailer right next to the work.
Business parks and plant sites out east usually have wide lots and easy truck access. Long-term jobsite rentals are common on this side of town.
South Boulder sits closest to the foothills and the open space trailheads, where trail crews, flood project crews and neighborhood events all need water.
These towns share Boulder's delivery routes, so a same-week order gets the same service. Rebuild crews in Louisville and Superior are still at work years after the Marshall Fire.
The data center wave has reached Boulder County, and those jobs drink differently. Hundreds of trades spread over huge fenced pads, gates that stay busy around the clock, and safety programs that expect a documented cold-water point. We stage site-ready stations where the badge checks and the foot traffic actually are, and our trucks keep them full on a 24/7 cadence for as long as the build runs.
At 5,430 feet the air is dry and the sun is strong, so people at a Boulder event or job site drink more than they would at sea level. We plan more refills per person here, and the 300-gallon tank gives you a real cushion between them.
With a frame, a hitch, and tires under it, the unit hauls out to a remote build in Boulder County, an event field, a working orchard, or a disaster staging yard with equal ease. Boulder contractors and event planners request this exact rig by name. The whole design is built around backing in, leveling off, and pouring cold by the same afternoon.
| No. of stations | (4) Bottle Filling Stations |
| Length | 12' 3" |
| Weight | 3,100 lbs. |
| Height | 8' |
| Fresh water tank | 300 Gallons |
| Power requirements | 1 to 4 dedicated 20A/120V circuits OR 1 dedicated 50A/240V circuit |
| No. of AC units | 1 |
Boulder holds more federal science than most cities its size. NIST, NOAA research labs and the National Weather Service Denver/Boulder forecast office all share the campus at 325 Broadway, and NCAR's Mesa Lab sits on the mesa above South Boulder. Much of the work that supports those sites happens outdoors, from grounds and roof crews to contractors on building upgrades. A water station at a staging lot keeps those teams off the road to the nearest store.
Federal jobs come with paperwork, and we have it ready. On-Site Hydration Services is SAM.gov registered, licensed and insured, and we send a certificate of insurance before the trailer moves. We also plan gate access ahead of time, since a security check can add an hour to a delivery if nobody expects it. Tell us the badge rules on the first call and we build the schedule around them.
Field sites away from buildings are where the trailer makes the most sense. The Table Mountain field site north of town and the Rocky Flats National Wildlife Refuge south of town both have long stretches of open ground with no building tap nearby. Survey teams, prairie restoration crews and trail workers can fill jugs at the rear station in the morning and top off at the side stations all afternoon. The trailer sits on a gravel pad or a dirt lot without any trouble.
Military and federal work around the Front Range rarely stays in one city. When a project also touches Buckley Space Force Base, our Aurora portable water trailer rentals come off the same schedule as Boulder. Work farther south near Fort Carson or Peterson Space Force Base is covered by our Colorado Springs water station rentals, so one call can plan stations for every site on a multi-base job.
Six bottles per person on a 90-degree day in Boulder County, a 38-person crew, and you're already at roughly 228 plastic bottles to buy, cart in, ice down, and throw away. That's one day. The season is where it gets ugly.
Multiply across a 175-day build and the tally clears 39,000 bottles, with the larger commercial jobs running far past that. A single trailer makes the entire pile disappear, leaving cold water at the tap and nothing for the dumpster.
Sustainability is the easy part of the pitch. Roughly 60 million plastic bottles get thrown out daily in this country, only about a third are ever recycled, and one bottle can sit in a landfill for centuries. Worth reporting, sure. But the Boulder project managers who actually switch usually do it to kill the daily hassle, not to pad a sustainability slide. A shared trailer means no recurring bottle order, no cooler going warm before first break, no wall of empty jugs baking by the job-trailer. The super runs the build, not the water program.
Because our own potable tankers cover the refills, the supply scales with the job rather than fighting it. Double the crew for a big pour and they still can't drink faster than the plan. And the tankers just swing back and bring the level up.
Want this math run for your own Boulder job? Two minutes on the phone gets you a real number.
Folsom Field seats 50,183, and tailgate lots fill hours before kickoff. A station near a lot entrance gives fans a refill point that is not a concession line.
The 2026 festival runs May 22 to 25 with 200-plus artisan vendors and bands on three stages along the creek. Vendors and staff need water on a four-day setup, and so do guests walking the path in the sun.
The summer season at Chautauqua runs for six weeks at the foot of the Flatirons. Crews, musicians and concertgoers all use the same few lots, so we place stations where foot traffic already flows.
Move-in week puts thousands of families on campus in late-summer heat, carrying boxes up stairs. Stations near residence hall lots cut down on bottled water cases stacked at every door.
A water source people don't trust gets ignored, and an ignored station is rented money wasted. That's why municipal water doesn't reach the tap raw on our trailers. It passes through three filter stages and a UV chamber, then an onboard cooling unit drops the temperature. The result tastes clean and comes out cold, even on the worst Boulder afternoon of the year.
The opening filter traps sand, scale, and the fine grit local mains occasionally push through. On a dusty Boulder lot, that's what keeps a pour from tasting like the parcel it's parked on.
Activated carbon comes next, lifting the chlorine bite and the dull seasonal notes local tap can carry until the taste lands clean and neutral. When it's 90 out, that flavor decides whether a crew keeps drinking or walks past the tap dry.
A finer cartridge then catches the microscopic particles that slip past the first two, so what reaches the spout is clear rather than merely cold for the crews and crowds across Boulder.
The last step is an ultraviolet chamber that wipes out bacteria and microbes without adding a single chemical. Even after a long tow to the far edge of Boulder County, the water off the nozzle is clean.
Along the wall sit four adjustable push-back taps, press a bottle to the bar and it pours. One of them is set at ADA-reachable height, so a single trailer includes everybody at a Boulder crew or crowd with no add-on gear. Out back, a large-jug spout services five-gallon coolers and hydration packs, while a bank of hose connection taps handles work-site chores, event support, and refills down the orchard rows. Stainless, food-grade plumbing the whole way through keeps the filtered, chilled water at quality right to the spout.
Every Signature trailer carries a 300-gallon load, roughly 2,400 cups at sixteen ounces each, and we recharge it on demand, so the unit doesn't turn into the choke point on a busy Boulder shift or a packed show night.
There's nothing here for you to run. Placement, fresh-water load, hookup, that's all on us, and then we walk your Boulder crew or event staff through the basics before our truck pulls away.
People count, number of days, where exactly it parks on your Boulder site, and what power is there. Those four answers let us spec it correctly the first time around.
Reckon roughly 45 minutes from our yard to anywhere in Boulder or Boulder County, with round-the-clock emergency runs whenever a heat advisory or a power shutoff hits the area.
Once on site we set it level, charge the 300-gallon tank, and tie in power off one to four standard 120V circuits, or a single 50-amp 240V drop, depending on what the site gives us.
After that the tankers cycle back on a cadence matched to how fast your crew or crowd pulls it down, and we maintain the unit through the whole rental term.
No power on the parcel at all? We price that in. The unit draws very little, and with the service fleet backing it we've run Boulder stations on lots that had no permanent power whatsoever. Lay out what the site offers and the rest is on us.
Federal OSHA covers most private employers in Colorado. For construction, the rule at 29 CFR 1926.51 says an adequate supply of drinking water must be provided at every place of employment, and general industry has a matching rule. OSHA has also proposed a federal heat injury and illness prevention rule that would ask employers to plan water, rest and shade on hot days. A water station trailer gives your safety plan a fixed, documented drinking water point.
Events have their own layer. Organizers work through the City of Boulder for permits to use streets and parks, and food vendors at festivals and markets answer to Boulder County Public Health's temporary and special events licensing. We send placement details, trailer size and power needs early, so they can go straight into your permit packet.
Federal and state work adds procurement rules. Most contracting officers want SAM.gov registration, a certificate of insurance and clear delivery terms before they issue an order. We have all three ready. For work during a boil water advisory, the tank is filled from a potable source the advisory does not cover.
Need a station your written heat plan can point to? We can have one pouring cold within days.
Every Boulder County job is a little different, but most follow a few common patterns. Here is how a typical setup plays out:
A typical setup for a spring road race finish area. A typical setup for a road race finish looks like this: two trailers sit just past the finish chute, one on each side, so finishers split into two short lines instead of one long one. We deliver the evening before and fill both tanks. Race staff fill jugs for course aid stations from the rear station early in the morning. Pickup happens after the crowd clears, usually the same afternoon.
A typical setup for a summer civil crew near US 36. A typical setup for a civil crew in July looks like this: the trailer sits beside the site office on a level gravel pad, with a clear lane for the refill truck. Power comes from circuits the site already has, planned before delivery. Refills follow the crew size and the forecast, with extra stops on the hottest weeks. When the job moves to a new area, the trailer moves too.
A typical setup for a city crew during a water main repair. A typical setup for a main repair looks like this: the trailer goes to a parking lot near the work zone where both crews and residents can reach it. The accessible filler faces the sidewalk, and the rear station serves crews filling large jugs. The tank is filled from a source outside the affected area. The station stays until the city gives the all clear.
City water work does not stop when a main breaks or a plant section goes down for repairs. The city's drinking water comes from the Betasso Water Treatment Plant up Boulder Canyon and the Boulder Reservoir treatment plant, and wastewater runs to the 75th Street facility east of town. When any part of that system needs work, crews still need clean drinking water on site. A station trailer can also serve residents at a set pickup point during a planned outage.
Open space crews work some of the hottest, driest ground around the city. Trail crews and volunteer work days on the Chautauqua and Flatirons trails start at trailhead lots with no fountain, and the work runs well past noon. Parking a trailer at the lot lets people fill up before the climb and again when they come down. The rear jug station fills the big containers that go up the trail on a crew's back.
Boulder Reservoir covers about 700 acres in north Boulder and pulls big summer crowds for swimming, boating and city-run events. A public filling point there cuts down on plastic bottles and gives families a cold refill without a trip back to the car. The same setup works for a city fun run or a neighborhood cleanup day. We place the trailer on a firm, level surface so the accessible filler stays easy to reach.
Street, parks and utility crews often need water for weeks, not days. We write long-term rentals that follow the crew's schedule, with refills set to match shift length and head count. City and county buyers get the paperwork their purchasing office asks for, including a W-9 and a certificate of insurance. Emergency calls go to a live person 24 hours a day.
Boulder summers are hotter than many people expect. The city often sees 30 or more days a year above 90 degrees, and the record high is 104. On open ground like a job site or a race course, the heat builds all day and feels worst by mid-afternoon, when crews are tired and the morning shade is gone.
High country sun is strong and the air is dry, so sweat dries fast and people do not notice how much water they are losing. Crews and event guests tend to wait until they are thirsty, which is already late. Cold water gets people to drink more often, and a station they can see from their work area gets used far more than a case of bottles in a truck.
Spring and fall can swing hard. An 80-degree afternoon can be followed by snow two days later, and Boulder averages about 88 inches of snow a year. We plan long rentals for both kinds of weather from the start, and the winter package keeps the water system working when temperatures drop.
One of the biggest dirt jobs on Boulder's calendar is the South Boulder Creek flood project at the CU South site near US 36. The city expects construction to start the week of October 5, 2026, and to run three to five years. When it is done, the city says it will protect about 2,300 people and 260 structures. A long job like that is where a crew-sized water station earns its spot on the site plan.
Placement on a busy site is simple once you know the traffic. We set the trailer near the break area or the site office, on level ground, and out of the haul road where dump trucks and loaders turn. It also needs a clear path for a refill truck. Crews drink more when water is close, so we would rather walk the site with your super than guess from a map.
Boulder builds are often tight. Lots downtown and on University Hill leave little room, while East Boulder and Gunbarrel business park projects usually have space to spare. At 12 feet 3 inches long, the Signature Series fits in a single parking row, and it can be towed into spots a flatbed of bottled water cannot reach. For CU Boulder campus projects we coordinate delivery times with campus traffic and class changes.
Long jobs change shape as they go. A foundation crew of fifteen can turn into eighty trades once framing and mechanical work start, so we adjust station count and refill timing as the head count grows. When the work moves to a new phase or a new corner of the site, we move the trailer with it. Monthly rentals are normal for us, and we keep the same point of contact for the whole job.
Everyone sees the trailer. What they don't see is the support fleet behind it, the trucks that deliver fresh water, hold reserve on site, and carry wastewater off, so a single call wraps the entire loop rather than stringing together three vendors.
Our tankers run drinking-grade water in bulk, recharging the 300-gallon tank on whatever interval the headcount demands. Those same trucks also top up storage tanks, holding tanks, and bladder bags whenever a single drop can't keep pace, like a big slab pour or a downtown night that packs the square.
When demand spikes we set out fold-flat bladders to bank extra fresh reserve, and on a drain-less lot they'll temporarily hold greywater too. It isn't fancy equipment, but it's what keeps a far-flung job in Boulder County pouring between tanker runs.
Water that has to move across a job is a pump truck's job, whether that's charging holding tanks or hauling supply end to end. It earns its keep on the sprawling parcels where the trailer and the fill point can end up a fair hike apart.
At the tail end, a vacuum truck draws off greywater and wastewater and carries it to permitted disposal, closing the loop clean. Nobody on your Boulder crew is left guessing where the used water ended up. That piece was built into the plan from day one.
Every job gets its own setup. A remote parcel might run a station plus a bladder bag for reserve and a recurring water-truck schedule. A heavy event night might call for a pump truck to move supply and a teardown waste run at the end. Describe the shape of your job and we'll put together the right combination, on one invoice, handled by one crew that already knows the ground.
A couple of minutes on the phone is enough to get you a real number. Here's what we'll want to know, handy to have ready before you call, and proof that we size every job to the work in front of us rather than reading off one canned quote.
Bottled water reads as the budget choice on a purchase order. Its actual price tag is buried somewhere else, in handling hours, staging footprint, water that warms up, and trash piling up afterward, and on a hot inland lot each of those costs more than it would by the coast.
Look at everything bottled water actually demands of a person: cutting the order, receiving and breaking down pallets, icing coolers before dawn, topping them up through the day, then flattening empty bottles for the bin. On a large Boulder crew that's hours of paid time burned every single day, scraped right off the work that's supposed to be getting done. The trailer erases that loop entirely. A local contractor once let us pencil it out with him, and the recovered labor by itself paid for the unit. His words were that the bottle runs had been quietly costing him close to a day of payroll a week. Our trailer arrives full, the tankers keep it full, and your superintendent owes it nothing but a parking spot.
Ice a cooler at 6 a.m. and by mid-morning in July around Boulder County it's as warm as a bath. Warm water is water people stop touching, and the slowdown that follows is precisely where heat illness gets its opening. A chilled station never rides that warm-up curve at all. Whatever pours at clock-out is as cold as the sunrise fill, which happens to be the moment a spent crew, or a crowd deep into a long concert, leans on it hardest.
Bottled-water pallets devour staging space, jam the lay-down area, and sit cooking in the sun until somebody finally cracks them open. Empties build up faster than anyone keeps up with, and on a tight commercial lot that pile turns into its own problem. Set a trailer in one parking stall instead and it serves a crew or crowd that would otherwise burn through hundreds of plastic bottles every day.
Every bottle bought is a bottle thrown out, and across a season a busy site or event generates a small mountain of them. That's a disposal line on the budget, a dent in the sustainability numbers, and, given that a single bottle can linger in the ground for centuries, a footprint that lasts longer than the project that made it. Move to a refill station and the line drops to zero, which finally gives your reporting a figure worth publishing.
Boulder deliveries run on the same Front Range schedule as our water station rentals in Denver, so a same-week order in Longmont or Superior gets the same planning as a job downtown. We also serve all 50 states for national events, touring productions and federal work. If your site is on the map below or up a canyon road past it, call us and we will get a trailer there.
Working a corridor instead of a single address? We follow the main routes across Boulder County, so multi-site projects get the same fast turnaround as one stop.
Still weighing it? Call and ask. Most of these questions get settled in one short conversation.
Yes, if we plan for it. For winter rentals we set the trailer up with the winter package, which protects the lines and fittings when temperatures drop. We also look at where the trailer sits, since a spot out of the wind on the south side of a building stays warmer than an open lot. Boulder can swing from mild to bitter cold in a day, so tell us about any winter dates when you book and we will build them into the setup.
Every trailer is cleaned and sanitized before it leaves for a job, and the water path uses food-grade parts and stainless steel. On long rentals we set a cleaning and filter check schedule based on how hard the station is used. A busy construction site with eighty workers needs more frequent checks than a quiet office site. If a health or safety inspector asks for records, we can walk you through what was done and when.
Rental length is only one part. The number of trailers, how many refills the job needs, how far the site is from our route, and how hard the site is to reach all change the quote. A canyon site with a tight pullout takes more planning than a paved lot in Gunbarrel. Short notice and after-hours delivery can also add to the cost. Give us your dates, head count and address and we will build a clear quote with no surprises.
Plan for a firm, fairly level spot about the size of a parking space and a half, with room for our truck to back in and pull out. Gravel, dirt and pavement all work, though soft mud after a spring storm can be a problem, so let us know if the ground is wet. The trailer should sit close enough to power for the circuits you are providing. We confirm the spot with you by phone or photo before we head out.
The best spot is close to where people already take breaks, usually by the site office or a shade structure. Keep it out of the haul road and away from where loaders and dump trucks turn or back up. The refill truck needs a clear path in and out, and the accessible filler needs a flat route with no trenches or loose material in the way. We are happy to walk the site with your superintendent before delivery.
We set the refill schedule with you before delivery, based on head count, shift length and the weather. A 300-gallon tank lasts a long time for a small crew and much less time at a big event, so the plan changes from job to job. If your site has a potable water hookup, the trailer can connect to it and stay topped off. If crew size or heat changes mid-job, call us and we adjust the schedule.
One of the four bottle filling stations is ADA accessible, set at a height and reach that works from a wheelchair. The other part is placement. We set the trailer on a firm, level surface with a clear route to the accessible side, not on a slope or behind a curb. At events we can face the accessible filler toward the main walkway so it is easy to find.
The station needs power to chill the water and run the UV light and pumps. It uses 1 to 4 dedicated 20A/120V circuits or one 50A/240V circuit. It does not need a water hookup, since the 300-gallon tank carries its own supply. Many job sites already have temporary power, and many event venues have outlets or site power we can plan around. If your site plans to supply a generator, we will go over the right size with you before delivery.
In most cases, yes. The Signature Series is road towable and weighs about 3,100 pounds, so it handles canyon roads that a big box truck would struggle with. We need to know about tight turns, low branches and the size of the pullout before we go. Some unpaved roads above Nederland or Gold Hill need a site check first.
Yes. During a boil water advisory or a loss of water service, the trailer gives crews and residents a clean drinking water point. The tank is filled from a potable source outside the affected area. Emergency calls reach a live person 24 hours a day, and we work with city, county and agency staff on placement.
Yes. The rear jug station is made for large containers, so trail crews and field teams can fill several five-gallon jugs quickly. The side bottle fillers handle water bottles and smaller bladders, which keeps the big containers from tying up the bottle filling line.
If you are planning a Boulder event or a summer job, the best time to reserve a water station is earlier than most people think. The busy season starts in late May and runs through September. That window holds the biggest races, the longest festivals, campus move-in and the heaviest stretch of outdoor construction. Many of those dates stack on top of each other.
Memorial Day weekend is the tightest stretch of the year. A race, a four-day creek festival and a long list of backyard gatherings all fall on the same few days. If your event lands on that weekend, book by early spring. Waiting until May can mean fewer trailers to pick from and less flexible delivery times.
The most common question we get from event planners is simple: how many water stations do I need? The honest answer depends on four things. Those are crowd size, event length, heat, and how people move through the site.
Start with the total water. A good planning number for an outdoor event in summer heat is about a liter per person for every few hours on site, and more for runners, workers and anyone on their feet the whole time. At Boulder's altitude people lose water faster than they realize, so plan on the high side.
Most people only think about drinking water when it stops coming out of the tap. In Boulder County, that has happened for real, and more than once.
During the Marshall Fire at the end of 2021, six public drinking water systems lost power. Without power, pumps and treatment can stop, which puts both drinking water and firefighting water at risk. Boulder County's recovery pages still track the rebuild years later. Floods can do the same thing by damaging pipes, washing out roads or forcing a boil water advisory.
Plenty of crews and event planners still default to bottled water, since it is easy to order and everyone already knows how it works. Habits stick. Before you order another pallet, it is worth running the numbers for your own job.
Start with volume. A crew of 50 people drinking six bottles each per day goes through 300 bottles a day. Over a 200-day project, that adds up to 60,000 bottles or more. Somebody has to order them, unload them, store them, keep them cold and haul away the empties.
“Paperwork was ready before I asked for it. Insurance certificate, SAM registration, all of it. The delivery driver knew about the gate check and planned for it.”
“We had about sixty volunteers heading up the trail. Everyone filled their bottles at the trailhead and again when they came down. No more hauling water jugs in my car.”
“The station fits right into our heat plan. It is easy to point to during a safety walk, and the refills show up on schedule.”
“Move-in weekend was hot and the lines never got long. Families loved being able to refill without walking back to the car.”
“We had a main repair that ran longer than planned. They kept the station there and adjusted refills without us having to chase anyone.”
“Four days of setup and teardown and our vendors never ran out of water. The accessible filler was a nice touch for guests.”
“Quick quote, clear answers on power, and the trailer arrived when they said it would. We kept it for the whole job.”
“We work far from any building. Being able to fill big jugs at the back of the trailer every morning made a real difference in July.”
“The water was good and so were the people. I have recommended them to two other builders on our street.”
Service information current as of September 2026.
Tell us the headcount or the gate count, the rental dates, and where the trailer should park, and we'll spec the right setup and roll one out to you anywhere in Boulder County, usually inside about 45 minutes of dispatch.
