Table of Contents
California construction sites must provide enough portable toilets and handwashing stations to meet Cal/OSHA sanitation requirements. In most cases, that means at least one toilet facility for every 20 employees, along with clean, accessible restrooms and handwashing facilities.
Failing to meet these requirements can lead to worker complaints, jobsite disruptions, and costly Cal/OSHA citations.
It’s important to understand the rules for restroom counts, servicing, placement, and accessibility, so contractors can keep their projects compliant and running smoothly.
How Many Porta-Potties Does OSHA Require in California?
Employees on Site | Minimum Facilities Required | Minimum Toilets Required | Maximum Urinals Allowed |
1–20 | 1 | 1 | 0 |
21–40 | 2 | 1 | 1 |
41–60 | 3 | 2 | 1 |
61–80 | 4 | 2 | 2 |
81–100 | 5 | 3 | 2 |
101–120 | 6 | 3 | 3 |
121–140 | 7 | 4 | 3 |
141–160 | 8 | 4 | 4 |
161–180 | 9 | 5 | 4 |
181–200 | 10 | 5 | 5 |
Under Cal/OSHA regulations, employers must provide at least one toilet facility for every 20 employees, or fraction thereof, of each sex. This means the ratio applies separately for male and female workers. A mixed-gender crew of 40, for example, requires two facilities for men and two for women, for a total of four.
While both toilets and urinals can be used to meet the total facility requirement, toilets must account for at least half of the required facilities. For example, if a jobsite requires four restroom facilities, at least two must be toilets, while the remaining two may be urinals. Jobsites with fewer than five employees may satisfy the requirement with a single-user all-gender restroom.
What Counts as a Toilet Facility?
A toilet facility is any restroom unit that meets sanitation requirements and provides employees with access to a functioning toilet. On construction sites, this includes portable toilets, restroom trailers, or permanent restroom facilities available to employees.
It is important to understand that a urinal alone is not a complete substitute for a toilet. Under Cal/OSHA requirements, urinals may count toward the total number of facilities, but a minimum number of actual toilets must still be provided.
Need Porta-Potties in Los Angeles?
Get the right number of units and handwashing stations for your crew.
Cal/OSHA Portable Toilet Rules for California Jobsites
Cal/OSHA construction sanitation requirements are governed by Title 8, Section 1526 of the California Code of Regulations.
One Toilet Facility for Each 20 Employees
Cal/OSHA requires employers to provide at least one toilet facility for every 20 employees, or fraction thereof, of each sex. This requirement applies to construction sites and other temporary worksites where employees do not have access to permanent restroom facilities.
When calculating the number of facilities needed, both toilets and urinals can be counted toward the total. However, toilets must make up at least half of the required facilities.
Fewer Than 5 Employees
For jobsites with fewer than five employees, Cal/OSHA allows a simpler restroom setup. A single-user all-gender toilet facility is sufficient to meet the requirement.
This provision helps small crews remain compliant without needing multiple portable restrooms. The facility must still be properly maintained and readily accessible to workers.
Privacy, Cleanliness, and Toilet Paper
Providing a portable toilet is only part of the requirement. Restroom facilities must offer privacy and be maintained in a clean, sanitary condition throughout the project.
Employers must also ensure that toilet paper is available at all times. Regular servicing and cleaning are essential to keep facilities usable and compliant with Cal/OSHA standards.
Mobile Crews
The toilet facility requirements do not apply to mobile crews that have readily available transportation to nearby toilet facilities. Under Cal/OSHA, readily available means workers can reach a facility in less than 10 minutes.
This exemption applies to utility crews or other workers who move between locations throughout the day rather than working at a fixed jobsite.
Handwashing Station Requirements on Construction Sites
Cal/OSHA requires construction sites to provide at least one handwashing station for every 20 employees, the same ratio as toilet facilities. These facilities must provide clean water, soap or other cleansing agents, and a sanitary method for hand drying.
Handwashing stations should be placed near portable toilets so workers can wash their hands immediately after use. On larger job sites, additional stations are needed throughout active work areas to ensure convenient access for all employees.
When hazardous substances are present, workers must have access to washing facilities that allow them to remove contaminants from their hands and skin.
Where Should Porta-Potties Be Placed on a California Jobsite?
The best place for a porta-potty is somewhere workers can reach quickly without crossing active construction zones. On residential remodels in Los Angeles or San Diego, that means placing the unit near the driveway or side yard.
The unit should sit on level, stable ground and remain accessible for service trucks during scheduled cleanings. On larger commercial projects, it makes sense to place multiple units near different work areas so workers do not have to walk unnecessarily across the site.
Avoid placing porta-potties where they block equipment movement, material deliveries, emergency access routes, or neighboring properties. A well-placed unit improves worker convenience while making servicing, maintenance, and compliance much easier throughout the project.
How Often Should Construction Porta-Potties Be Serviced?
Regular servicing keeps portable restrooms clean, stocked, and usable throughout the project.
- Weekly service is a common baseline for many construction sites: This generally includes waste removal, tank cleaning, restocking toilet paper, and checking the unit’s overall condition.
- Larger crews require more frequent service: A porta-potty used by 30 workers will fill much faster than one used by a small crew of five.
- High-traffic job sites need servicing multiple times per week: This is especially common on commercial projects, long-term developments, and sites with limited restroom capacity.
- Hot weather can increase service needs: More frequent cleaning helps control odors and keeps restroom conditions comfortable for workers.
- Do not wait until the unit is full: Overflowing or poorly maintained porta-potties can create sanitation issues, worker complaints, and potential compliance concerns.
A good rule of thumb is to match your service schedule to the number of workers using the restroom each day. If usage increases during the project, it is worth adjusting the service frequency before cleanliness becomes a problem.
Do You Need ADA Porta-Potties on a Construction Site?
For construction sites where portable toilets are used exclusively by workers, ADA requirements do not apply. However, if a worker or authorized visitor on your site requires accessible accommodations, you must provide at least one ADA-compliant unit.
ADA porta-potties provide wheelchair-accessible entry, additional interior space, and support handrails that are not found in standard units. If accessible restroom access is needed for workers or authorized site visitors, it is best to include an ADA-compliant unit during the initial site setup rather than making changes later.
When in doubt, consult your project requirements and confirm with your local Cal/OSHA office, as the rules can depend on site-specific circumstances.
Common Mistakes That Put You at Risk
Many sanitation violations happen because contractors underestimate how quickly a jobsite can outgrow its restroom setup. A few simple oversights can lead to worker complaints, failed inspections, and costly penalties.
- Providing too few porta-potties for the crew size: Cal/OSHA requires a minimum number of toilet facilities based on the number of employees, and failing to meet that requirement can result in citations.
- Forgetting handwashing stations: Portable toilets alone are not enough, and workers must have access to proper handwashing facilities with water, soap, and a sanitary drying method.
- Letting units become dirty or overfilled: A restroom that is not serviced often enough can quickly become unsanitary and unusable for workers.
- Placing units where workers cannot easily access them: Restrooms should be easily accessible, without requiring employees to cross active work zones or travel long distances.
- Running out of toilet paper or supplies: Something as simple as an empty dispenser can create compliance issues and worker dissatisfaction.
- Ignoring accessibility needs: If accessible restroom accommodations are required on the site, failing to provide them can create unnecessary problems later in the project.
- Waiting for an inspection before addressing sanitation issues: By the time an inspector arrives, small problems can become formal violations.
Cal/OSHA penalties can be significant. General and regulatory violations carry penalties of up to $16,285 per violation. In contrast, serious violations can result in penalties of up to $25,000 per violation, with willful or repeat violations carrying penalties of up to $162,851 per violation.
If you’re in Los Angeles and need help determining how many porta-potties and handwashing stations your jobsite needs, Easy Waste Management can help. We help you choose the right sanitation setup, schedule regular servicing, and keep your project running smoothly from start to finish. Get a free quote.
FAQs
How many porta-potties are required for 20 construction workers?
For a construction crew of 20 workers, at least one toilet facility is required under Cal/OSHA regulations. If the workforce increases beyond 20 employees, additional facilities are needed.
What are Cal/OSHA porta-potty requirements?
Cal/OSHA requires employers to provide an adequate number of toilet facilities, handwashing stations, toilet paper, and sanitary restroom conditions for employees. Restrooms must be readily accessible and maintained throughout the project.
Does a porta-potty need to be cleaned every week?
Weekly servicing is a common baseline for many construction sites and helps keep units clean, stocked, and operational. Sites with larger crews or heavier usage require more frequent servicing.
Can workers use the bathroom at a nearby gas station instead?
No, employers are responsible for providing accessible restroom facilities for workers on the job site. Relying on nearby businesses does not meet job site sanitation requirements.
What are the fines for OSHA porta-potty violations in California?
Cal/OSHA can issue penalties of up to $16,285 per violation for general or regulatory violations. Serious violations can result in penalties of up to $25,000 per violation. Willful or repeated violations can result in fines of up to $162,851 per violation.
Keep Your Los Angeles Jobsite Compliant
Get porta-potties and handwashing stations delivered and serviced on schedule.
