Porta potty rental in Contra Costa County, CA

Delivery across Contra Costa County

We serve three Contra Costa cities, and all three sit just beyond the 25-mile included zone around our Hayward yard. The mileage charge is $3.50 per extra mile, charged each way (delivery and pickup), and it appears in the calculator before you book.

Two routes cover the county. The Walnut Creek and Concord run goes over the Dublin grade on I-580 and up I-680 through the Sunol pass; the Richmond run follows I-880 and I-80 up the bay shore past Berkeley. We batch the I-680 cities on the same truck day, so a Walnut Creek and a Concord order placed the same week usually land on the same morning. Unincorporated areas (Alamo, Lafayette, Pleasant Hill, El Cerrito, San Pablo) are priced by ZIP in the calculator and typically fall in the same 28-to-35-mile band.

Order by 2 PM for guaranteed next-day delivery ($95). Standard delivery on a date you choose carries only the mileage charge. Off-hours placement (before 6 AM, after 6 PM, Sundays) is $150.

County rules that apply

• Hauler permits. Contra Costa Environmental Health's Land Use Program permits septic-tank pumpers and chemical-toilet operators, the county's implementation of Health and Safety Code 117400 registration. Pottyline is a registered chemical-toilet hauler; insurance certificates are available on request.
• Where the waste goes. Loads from Walnut Creek and Concord go to Central Contra Costa Sanitary District in Martinez, which issues a Waste Hauler Permit covering portable-toilet waste and receives trucks under 2,000 gallons weekdays 7:30 AM to 4:30 PM. Richmond loads go to the EBMUD Resource Recovery facility in Oakland, which accepts 24/7 under permit.
• Events with food. The county's temporary food facility rules require approved toilets within 200 feet of each booth, at least 1 toilet per 15 employees, handwashing with soap and paper towels in or next to the toilets, and an application filed 2 weeks before the event (late fees inside 2 weeks).
• Streets and parks. No permit on private property. Public right-of-way needs an encroachment permit from the city; East Bay Regional Park District sites such as Point Pinole and Briones need the District's Special Event Permit.

Construction in Contra Costa County

Walnut Creek's downtown keeps adding mid-rise housing around the BART station and along North Main Street. Concord has the former Naval Weapons Station reuse on the east side plus steady downtown and Monument corridor work. Richmond's activity clusters at Marina Bay and the Hilltop area, with industrial and maintenance contractors around the Point Richmond refinery and the Port of Richmond. Add county road and flood-control contracts and crews are spread from Hercules to Danville.

Cal/OSHA worked example for a 15-person crew (12 men, 3 women). 8 CCR 1526 requires 1 toilet per 20 employees of each sex: 1 for the men, 1 for the women. 1527 requires 1 handwash station per 20 workers: 1. 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).

Crews of 21 to 40 add a standard restroom at $189 and a second handwash at $129. Weekly service is photographed, GPS-stamped and texted; the PDF log satisfies a Cal/OSHA or city inspector. Ratios are on the construction page and in the Cal/OSHA toilet guide.

Events in Contra Costa County

The county fairgrounds, the Contra Costa Event Park, is in Antioch, east of our three cities; we price it by ZIP. Inside our cities the main sites are Heather Farm Park and Civic Park in Walnut Creek (the Walnut Creek Art & Wine Festival draws tens of thousands to Heather Farm each June), Todos Santos Plaza in downtown Concord with its summer concert series, the Concord Pavilion, and Richmond's Marina Bay Park, Craneway Pavilion and Point Pinole Regional Shoreline.

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

A wedding of up to 150 guests at a Lafayette or Alamo private estate fits a 2-stall luxury trailer at $2,495 Friday to Monday; hillside driveways need a 20-ft flat pad and a 120 V outlet within 100 ft, or a 7 kW generator ($750). Planning details are on the events page.

Prices in Contra Costa County

Delivery status: Walnut Creek and Richmond +5 miles (about $18 each way); Concord +8 miles (about $28 each way). The mileage charge is per trip, not per unit, so a 10-unit order to Concord pays the same $28 each way as a single unit. Trailers carry +15% May to October. All add-ons are on the pricing page.

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

Why Contra Costa County crews and planners choose Pottyline

• Mileage is published, not discovered on the invoice. $3.50 per extra mile each way, shown by ZIP before you book; $18 to $28 for our three cities.
• One charge per trip. Multi-unit orders to Walnut Creek, Concord or Richmond pay the mileage once, which is where the per-unit delivery fees of other vendors add up.
• I-680 batching. Walnut Creek and Concord ride the same truck day, so service weeks are consistent.
• 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.
• Owner answers the phone in English, Spanish or Chinese, with a 2 PM cutoff for next-day delivery.