Porta potty rental in San Mateo County, CA

Delivery across San Mateo County

The San Mateo-Hayward Bridge (CA-92) starts a few miles from our yard, which is why two of the three Peninsula cities we serve are inside the 25-mile included zone even though they are across the bay.

The bridge is the whole story. From the Hayward toll plaza it is 7 miles of causeway to Foster City, then US-101 south to Redwood City or north to San Mateo and Burlingame. Daly City sits at the top of the Peninsula, 28 miles via I-280, and pays $3.50 per extra mile each way. Foster City, Belmont, San Carlos, Burlingame and Menlo Park fall between 18 and 24 miles and price automatically in the calculator; coastside ZIPs (Half Moon Bay, Pacifica) run farther over CA-92 or CA-1 and usually carry a mileage charge.

We run the Peninsula as one truck day, so Redwood City and San Mateo orders placed the same week typically land the same morning. Order by 2 PM for guaranteed next-day delivery ($95); off-hours placement is $150.

County rules that apply

• Hauler registration. Chemical-toilet haulers register with the county health officer under Health and Safety Code 117400; in San Mateo County that is Environmental Health Services, which also runs the temporary-event program. Pottyline is a registered chemical-toilet hauler; insurance certificates are available on request.
• Where the waste goes. Peninsula loads go to Silicon Valley Clean Water in Redwood Shores, the regional plant for Redwood City, San Carlos, Belmont and West Bay Sanitary District, which permits septic and grease haulers to discharge at the plant. Daly City-area loads can also run to EBMUD in Oakland.
• Events with food. The county's temporary events guidelines require 1 toilet and 1 handwash sink per 15 food workers, toilets within 200 feet of all booths, and the coordinator packet filed 14 calendar days ahead (21 days for 20-plus vendors); forms are on the county's temporary event forms page.
• County parks. Coyote Point Recreation Area and other county parks require a Special Event Permit for anything beyond a picnic-site reservation; the County Parks Reservations Desk is (650) 363-4021.
• Streets. No permit on private property; public right-of-way needs each city's encroachment permit.

Construction in San Mateo County

Redwood City's downtown keeps adding mid-rise housing and office around the Caltrain station, with lab and biotech buildings in Redwood Shores and along Seaport Boulevard. San Mateo's Bay Meadows and Hillsdale areas are in a long build-out of housing and office, and the El Camino Real corridor has steady mixed-use infill. Daly City has housing at Serramonte and Westlake plus BART-adjacent projects. Up and down US-101, South San Francisco's biotech campuses and Millbrae's station-area projects keep Peninsula crews busy.

Cal/OSHA worked example for a 25-person crew (22 men, 3 women). 8 CCR 1526 requires 1 toilet per 20 employees of each sex: 2 for the men, 1 for the women. 1527 requires 1 handwash station per 20 workers: 2. AB 521 directs Cal/OSHA to require a designated single-user unit for workers who identify as female or nonbinary (verify current adoption status with the OSHSB).

Weekly service is photographed, GPS-stamped and texted to the superintendent; the PDF log is ready for a Cal/OSHA or city inspection. Ratios and AB 521 details are on the construction page and in the Cal/OSHA toilet guide.

Events in San Mateo County

The 48-acre San Mateo County Event Center at 1346 Saratoga Drive in San Mateo hosts the county fair in June and festivals, maker events and expos on its lawns and lots the rest of the year. Coyote Point Recreation Area on the bay, Central Park in San Mateo, Courthouse Square and Red Morton Park in Redwood City, and Gellert Park in Daly City are the other sites we deliver to most; the Cow Palace on the Daly City line hosts shows and rodeos.

Sizing: 1 unit per 50 guests for up to 4 hours, +20% with alcohol, 5% accessible (minimum 1) when the public is invited.

A Woodside or Hillsborough estate wedding of 150 guests fits a 2-stall luxury trailer at $2,495 Friday to Monday; a 4-stall ($3,295) carries 300. Trailers need a 120 V outlet within 100 ft or a 7 kW generator ($750) and a 20-ft flat pad, and hillside driveways in Emerald Hills need a turnaround. Sizing details are on the events page.

Prices in San Mateo County

Delivery status: Redwood City and San Mateo included; Daly City +3 miles, about $11 each way, charged once per trip. Bridge tolls are in our price, not yours. Trailers carry +15% May to October. Add-ons are on the pricing page.

Get your all-in price for any San Mateo County ZIP in 30 seconds: Instant price · or call (650) 977-2883.

Why San Mateo County crews and planners choose Pottyline

• The bridge works in your favor. Redwood City and San Mateo are 20 and 22 miles from Hayward via CA-92, so delivery is included where other East Bay vendors charge a Peninsula fee.
• All-in price online: $189 per month or $195 per event, tolls and tax included, against Bay Area market rates of $150 to $230 plus delivery.
• The correct Cal/OSHA ratio, 1 per 20 per sex, with the AB 521 women's unit in the $479 pack.
• Proof of service by text after every visit: photo, GPS, timestamp, exportable PDF for the GC or the Event Center operations office.
• Permitted disposal at Silicon Valley Clean Water, the county's regional plant, so service trucks are not crossing the bay with a full tank.
• Owner answers the phone in English, Spanish or Chinese; 2 PM cutoff for next-day delivery, Monday to Saturday.