Construction Porta Potty Rental in California

California Conditions That Matter for Job Sites

Across the 544 California places listed here (NOAA 1991–2020 normals by nearest station, ACS 2020–2024):

• 69 of 462 listed places have more housing built since 2010 than the U.S. 11.4% (ACS)
• 8 of 544 listed places average 120+ freezing nights a year
• 1 of 60 places with snowfall data average 20+ inches of snow

Most listed places have a smaller share of recent housing than the U.S., so renovation crews in existing buildings are a common job-site type; OSHA's table applies to them too.

Range Across the State

Across the 462 listed California places with this figure (ACS 2020–2024), the low end is about 0.0% of housing units built 2010 or later (Commerce, Piedmont and 2 other listed places) and the high end about 95.1% (Rancho Mission Viejo); the middle place is near 5.4%.

By Climate Region

By DOE Building America climate region (county level, PNNL guide), the planning focus shifts: Hot-Dry (382 places): dust, wind and summer heat on open lots; Marine (145 places): long wet seasons and soft ground; Mixed-Dry (10 places): wind on open lots and freezing winters; Cold (7 places): months of freezing nights on winter jobs.

Federal OSHA or State Plan

California runs an OSHA-approved State Plan, Cal/OSHA (Division of Occupational Safety and Health), California Department of Industrial Relations, that covers most private-sector workers as well as state and local government workers (osha.gov State Plans, accessed 2026-10-13). State Plans must be at least as effective as federal OSHA, so check the State Plan's construction sanitation rule alongside 29 CFR 1926.51. osha.gov lists some coverage exclusions for this plan; the State Plan page shows which work they affect.

The federal minimum, OSHA 29 CFR 1926.51(c)(1):

Worked examples: 15 workers need 1 toilet; 45 workers need 2 toilet seats and 2 urinals (45 ÷ 40 rounded up); 210 workers need 5 seats and 5 urinals (210 ÷ 50 rounded up).

Who Handles Local Rules

For a unit placed in the street, on a sidewalk or in another public right-of-way next to the job site, the government to ask depends on where the site is. Of the 544 listed California places, 351 are incorporated, 193 are unincorporated Census-designated places. In an incorporated place, ask the city, town, village or borough; in an unincorporated community, ask the county. We don't say whether a permit is needed; each city page names who to ask.