Jobsite Toilets in San Diego: Counting Workers Under Cal/OSHA

What does Cal/OSHA say about toilets on a construction site?

Title 8 section 1526 of the California Code of Regulations asks employers on construction sites to provide one toilet for every 20 employees or fraction, for each sex. Where fewer than five employees work, a single-user all-gender toilet satisfies it. Read the current text and confirm how it applies to your crew with your safety lead.

The wording uses two phrases that change the arithmetic. 'Or fraction' means a group of 21 needs two, not one and a bit. 'For each sex' means the count is applied to the workers of each sex separately, so a crew that is mostly one sex still needs a facility for the other if it has any members, unless the small-crew exception applies.

This guide describes the rule and does not interpret it for your site. An employer, a safety consultant or Cal/OSHA itself can say how the wording applies to an unusual crew. Nothing here is legal advice, and the rule may change.

How do I count the crew, and how do phases and subcontractors change the number?

Count employees on site at the same time, across every trade, on the busiest shift. Add the general contractor's staff and each subcontractor's workers who are there together. A crew of fifteen with a visiting trade of ten is twenty-five on that day, and the count for that day is what the toilets must cover.

Because the rule is about employees present, the heaviest day sets the number. A concrete pour, a roof dry-in or a day when several trades overlap can double a crew for a short time. Many builders plan for that peak and release units later, since adding cabins at short notice depends on what a provider has free.

The table shows how the per-20 rule works for a few crew sizes, taking each group as one sex for simplicity. Real crews mix, and the 'each sex' wording can add units, so use it as a starting point only.

Subcontractors tend to arrive with their own assumptions. Some bring their own units, some expect the general contractor to supply them, and some do not think about it. Settle it in the kick-off meeting and write who supplies what.

A simple chart helps: phase, dates, peak employees, toilets required, toilets on site. Review it at each milestone and call the provider as soon as a number changes.

Is there a stricter San Diego rule?

None was found for this guide. No county or city requirement on the number of toilets per construction worker beyond Cal/OSHA turned up in the sources used. A general contractor, an owner or an insurer may ask for more, and a project on city or port land can carry its own conditions, so ask the party that controls the site.

That absence is a limit of the research, not a guarantee. Cities in the county have their own building and public-works departments, and a project with a street permit or a stormwater plan may have conditions that touch sanitation. Ask your permit contact when you apply.

If you are working for a public agency, a port or a military customer, the contract may spell out sanitation. Read it before you place the order, and send the relevant clause to the provider.

What does San Diego's project map mean for rentals?

Large local projects shape the market but their status is uncertain. The Midway Rising plan for the Sports Arena site proposes 4,250 homes and a 16,000-seat venue, Otay Mesa East and the SR-11 corridor are border-area projects, and the Chula Vista Bayfront has resort plans. Treat each as planned work, since public reports leave their current status unconfirmed.

A city release in September 2025 said the Midway project was advancing toward public hearings and a final council decision later that fall. The final vote and start of construction were not confirmed in the sources used here. A builder planning for it should speak to the project team, not rely on a news summary.

Smaller jobs fill the calendar in the meantime: remodels and additions in older neighborhoods, infill on tight lots, harborside and industrial work, and road projects. They follow the same arithmetic. See construction site toilets for how a provider works with a crew, and long-term rentals for the extended case.

What mistakes do builders make with jobsite toilets?

The common ones are counting average crew instead of peak, forgetting subcontractors, placing cabins where equipment blocks the truck, ignoring the 'each sex' wording and failing to ask for a servicing plan. Each is cheap to avoid before the first delivery and expensive to fix once a crew is waiting.

Counting only your own employees is the most frequent slip. A site with a general contractor and five trades has far more people than the contractor's payroll shows, and they all need somewhere to go. Ask each subcontractor for its peak number a week before it arrives.

The second is placement. A cabin set beside a stack of materials, behind a gate that closes at four or at the foot of a ramp used by loaders becomes unreachable for the truck, and an unserviced cabin becomes a complaint. Walk the site with the foreman and agree a spot that survives the next phase.

The third is the missing handwash stand. A cabin with no place to wash is half a facility, and a crew eating lunch on site notices. Add the stand to the first order.

How do hillside, coastal and tight lots affect where units go?

Slopes, narrow roads and soft ground make placement harder: a unit must stand level and the truck must reach it. Place cabins on firm ground inside the site fence where possible, ask the city or owner before using a street or alley, and tell the provider the width, slope and gate.

San Diego has plenty of sites on hills and canyon edges, from Point Loma to the neighborhoods that climb above Mission Valley. A pad cut into a slope may be level enough for a cabin but too small for a service hose, and a lot at the end of a steep drive may be beyond a long truck.

Near the water the concern is different. Storm drains lead to the bay and the sea, and spill protection under the cabins matters. City event guidance describes liners for standard units, and a builder on a shoreline job can ask the provider what it uses.

Older neighborhoods such as North Park, Normal Heights and Hillcrest have small lots and alleys. Point Loma has hills and narrow roads. Barrio Logan and National City sit beside shipyards and bases where gate access is controlled. Each calls for a different approach.

Think about neighbors. A cabin facing a window or a shared fence line draws complaints, and a short note about delivery and duration to adjacent owners heads off most trouble.

How do I check the site before an inspector does?

Walk the site at its busiest hour with the headcount in hand. Count the toilets, check the doors, paper and handwash, and look for blocked access. Compare the number on site with the peak crew count. If the numbers do not match, call the provider that day. A short weekly check is cheaper than a stop on the job.

Cal/OSHA enforces the rule, and a visit can come after a complaint or as part of a routine inspection. This guide does not discuss penalties, because none were found in the sources used. What a builder can control is the state of the site.

Assign the check to the site safety lead or the foreman and write it in the weekly report. If a cabin is damaged, full or missing supplies, report it to the provider with a photo and a location. Keep a log of those calls, so you can show that the issue was raised and handled.

What should be in the order and the quote?

The units by type and number, the start and end dates, the servicing plan, a handwash station for the cabins, the access notes and the terms for adding, moving and releasing units. Ask for the quote in writing and keep a copy with the site foreman. The line cannot promise availability, so book as soon as the start date is set.

A site quote should be as plain as a materials order. If the crew grows, the foreman should know whom to call and what the provider needs to add a unit. If the site closes for a time, the same applies.

The provider's waste handling is its own obligation under county and city permits. You need not manage it, but you may reasonably ask whether the provider holds them.

• Number and type of units, including a handwash stand
• Start date, expected end date and extension terms
• Servicing plan and how to request an extra visit
• Access notes: width, slope, gate and a site contact
• Terms for damage, relocation and release of units