What is a handwashing station and how does it work?
A handwash station is a self-contained sink: a fresh water tank up top, a foot pump or lever to run the water, and a gray water tank below to catch it, similar in footprint to what we deliver for a standard portable toilet rental job. No hose, no drain line, nothing to tie into. Most units hold soap and a paper towel dispenser built into the frame, which matters because 29 CFR 1910.141(d)(2) requires soap and towels or a hand-drying device at washing facilities, not just water. Hand sanitizer alone does not meet that standard, so if your crew or your inspector expects sanitizer-only setups to pass, they will not. We stock basic 5 gallon handwash station units for small crews and larger industrial handwash station models with multiple basins for bigger sites. Both run alongside our standard porta potty rental line or the deluxe flushable porta potty option if your job calls for something nicer. Pair one with a portable sink rental if you need a second wash point near a food or prep area, or add a hand sanitizer station rental as a supplement, never a replacement, near entrances. Every unit ships with a handwash station sign so workers and guests know it is there and how to use it, which matters as much at a wedding restroom rental as it does on a job site. Delivery inside Napa is straightforward; for jobs out toward American Canyon, 10.9 miles south, or Sonoma, 14.1 miles west, we build drive time into the delivery window.
Why do I need a handwashing station on my job site?
Because washing water and toilets are two separate obligations, and OSHA treats them that way. OSHA 1926.51(a)(1) requires an adequate supply of potable water at every construction workplace, separate from the toilet count set by OSHA 1926.51(c). If your crew works with paints, coatings, herbicides or insecticides, OSHA 1926.51(f)(1) kicks in specifically for washing facilities tied to those contaminants, and a portable sink hand wash setup is the easiest way to satisfy it without trenching water lines. Farms have their own rule: OSHA 1928.110 requires potable water, toilets and handwashing within a quarter mile walk of hand-labor employees, at one facility per 20 workers. That rule shows up often on our farm and agricultural restrooms jobs around Napa. Food trucks, wine harvest crews and film set restroom rental jobs all ask for the same thing: a wash station near the work, not back at the trailer. If you are scoping a bigger job, our how many porta potties do I need guide and the OSHA portable toilet requirements page walk through the toilet side, and handwashing requirements covers this in more depth.
Where should a handwash station be placed on site?
Close to the work, close to the toilets, and on ground that will not turn to mud. We think through placement the same way we do for a portable restroom rental: stable footing, a route wide enough for daily service, and no blocking of exits or equipment paths. If you are running an ADA-compliant setup, ADA Standards 302.1 requires the surface under and around the unit to be stable, firm and slip resistant, and ADA Standards 304.3.1 calls for a 60 inch turning circle nearby if a wheelchair user needs to access it. Our ADA accessible porta potty placements follow the same logic. Keep units out of direct summer sun where you can, since heat affects both the water and anyone using it, and check our porta potty in winter page if you are running through Napa's cold snaps instead, or our home renovation porta potty page if this is a residential remodel. For placement questions on public streets or lots, porta potty permit requirements and our porta potty placement guide both cover the ground rules. Full guidance also lives on the service areas page, which includes coverage notes for towns like Suisun City, 22.4 miles east, and Petaluma, 24.6 miles west.
What does a handwashing station rental cost?
Pricing depends on unit size and rental length, and it stacks with any delivery fee. Here is what a standard 5 gallon handwash station or comparable portable sink runs, based on our measured pricing data:
| duration | low | typical | high |
|---|---|---|---|
| day | 100 | 150 | 350 |
| week | 130 | 200 | 500 |
| month | 125 | 200 | 325 |
Delivery is billed separately and typically falls between 100 and 172 dollars depending on how long you keep the unit, the same fee structure that applies to a roll-off dumpster rental or storage container rental delivery. For full breakdowns across every product we rent, see porta potty rental cost, porta potty rental per day, and monthly porta potty rental. If you are bundling a handwashing station with a bigger job, our construction site services page and request a quote form are the fastest way to get an exact number for Napa.
Do I need a handwashing station if I already have porta potties?
Yes. Toilets and handwashing are counted separately under OSHA rules, and a portable toilet alone does not meet the washing-facility requirement. Most job sites in Napa pair a porta john rental with at least one wash station nearby, especially where OSHA 1926.51(f)(1) contaminant work is happening, and the same pairing shows up on our construction dumpster rental sites.
How often does the water get refilled and serviced?
We service on a routine schedule tied to crew size, following the ANSI/PSAI Z4.3 baseline of one visit per week for up to 10 users over a 40 hour week. Bigger crews or event weekends, like a festival restroom rental or concert restroom rental booking, need more frequent stops, which we scope during quoting.
Can I get a bradley handwash station or a multi-user industrial model?
We carry multi-basin industrial handwash station units for larger crews beyond the standard single 5 gallon design. Tell us headcount and we will size it, the same way we size a 4 stall restroom trailer or 8 stall restroom trailer for bigger events, or a temporary fence rental for perimeter control.
Does a handwashing station need its own permit in Napa?
Placement in the public right of way needs confirming with the city before delivery. On private property or a fenced job site, the kind we set up with chain link temporary fence or crowd control barrier rental, this is rarely an issue. Check dumpster permit requirements for how we handle similar questions on other equipment.
What is the difference between a handwash station and a hand sanitizer station?
A handwash station provides running water, soap and towels, meeting 29 CFR 1910.141(d)(2). A sanitizer station only dispenses sanitizer and does not satisfy that standard on its own. Most Napa sites use sanitizer stations as a supplement at entrances, not a substitute.
Next step
Get a delivery date
Tell us the address, the dates and the headcount. We size the order and confirm the route.