A good plan takes less than an hour, and it works whether the event is a 60-person backyard party or a street festival in Rivertown. The list below follows the order in which problems show up, so you can fix them before delivery day instead of during it.

Start with a walk of the site. Pick the spot for the trailer, then check the approach: gate width, low branches, a straight line in, and ground that stays firm after rain. A vineyard row or a ranch lane can look fine in dry weather and turn soft after a storm. If the spot is a closed side street, confirm who controls the barricades on the day.

Next, power and water. The 2-, 3- and 5-Station need one 20 A, 120 V circuit, and the 5-Station wants it within 100 ft. The 9-Station and the ADA + 2 need two circuits. Water and waste are onboard, so no plumbing is needed. If the nearest outlet is far or shared with a caterer, a quiet generator is the safer choice, and the team can arrange one.

Then draw the site plan. The city’s special outdoor events application asks for the type and location of restrooms, so draw the trailer footprint, the cord path, the door side and the walking route from the parking area. Mark fire lanes and keep them clear. A clear drawing also helps the venue manager or the HOA approve the placement in one pass.

Think about accessibility early. If the event is open to the public or the guest list is large, plan an ADA unit. The ADA + 2 has a women’s room, a men’s room and an ADA unisex room with a self-contained ramp. Leave a firm, level path to the ramp, and avoid placing it behind a tent line.

Plan the service. Decide when the busiest hours are, then ask for visits just before them. On a multi-day event, tanks are pumped and supplies restocked on a schedule that follows your crowd, not a fixed clock. Share a contact name for the day so the service team can reach a real person at the site.

Finally, gather what you need for a quote: the date, the address, the guest count, the event hours, the ground surface, the power situation and whether the event is public. With those seven items the team can recommend a size and a placement the same day. Call (209) 202-3741 or send a request through the quote form.

City of Antioch special outdoor events application

The right number of stations depends on peak demand, not on the average. Peak demand arrives in bursts: right after the ceremony, during the toast, when a set ends or when a parade finishes. A trailer that handles the average hour can still fail in the worst ten minutes.

Take a backyard wedding of 120 guests in Deer Valley. A 3-Station, with two women’s rooms and one men’s room, covers the room count for a ceremony and a short reception. If the bar is open and the party runs past dinner, move up to the 5-Station, because people use restrooms more often when they drink and stay longer.

Now a 300-person holiday market with walk-in traffic over an afternoon. Visitors arrive and leave at different times, so use is spread out. One 5-Station usually carries it, with its 3 women’s stalls, 2 sinks, and men’s 1 stall, 1 urinal and 1 sink. Add the ADA + 2 if the market is open to the public and nobody on staff can answer accessibility questions at the door.

A fair day with 900 people on the grounds is a different problem. The 9-Station is sized for about 400 to 900 guests at a five-hour event, with women’s 5 stalls and 2 sinks, plus men’s 2 stalls, 2 urinals and 1 sink. At that scale, two separate trailers at the midway and the grandstand beat one large unit, because the walk is shorter and a full trailer has a backup.

Length matters as much as headcount. The guide numbers assume about five hours. A ten-hour day with the same crowd needs more capacity or more frequent service. Waste tanks are the second limit: 300 gal on the 2-Station, 400 gal on the 3-Station, 520 gal on the 5-Station and 750 gal on the 9-Station.

Job sites follow a similar rule with a crew instead of guests. The ADA + 2 suits up to about 30 crew on a job, and a larger crew means a second unit rather than a heavier service schedule. A foreman who wants a private restroom can have a smaller trailer set apart from the crew units.

When in doubt, add a trailer instead of stretching one. A second unit near the bar or the stage cuts walking and gives a backup. Tell the team the guest count and the event hours, and the recommendation comes back with a placement plan.

Antioch has events in every season, and each one has its own weather. Knowing the calendar helps you pick a date, plan the ground and choose a trailer size before the rush starts.

Spring is the start of wedding season in the Antioch and Brentwood area. In mid-May the Contra Costa County Fair fills the fairgrounds on West 10th Street with a rodeo, carnival rides, animal shows and a junior livestock auction. A week earlier, the Antioch Wine Festival took over Rivertown on May 9, 2026, with a main stage at Waldie Plaza and streets closed across W. 2nd and G.

Summer is hot and dry. July highs average about 90 to 91°F, and the afternoon is the hardest stretch for outdoor events. The Antioch July 4 parade and fireworks run through Rivertown from late afternoon into the night, so crowds peak when the heat is dropping. Shade and pre-cooling matter most for midday weddings and sports events.

Fall brings festivals and the tail end of wedding season. A country-themed festival at Waldie Plaza was listed for late September, and wedding calendars at Brentwood vineyards stay full into October. Evenings start cooling, so plan lighting for the walk from the parking area to the trailer door.

Winter is wet and cool, with January highs near 54 to 57°F and lows near 40°F. Rain is the main risk for events, since it can cancel a parade and turn a lawn soft. Choose a firm pad, a hard path and a rain plan for any event that depends on dry ground.

Build your plan backward from the event date. Check the weather history for that week, ask the venue about its rain plan and confirm the ground type. For a December market or a spring wedding, the trailer placement can change if the ground is wet, so keep a second spot in mind.

Whatever the season, the quote process is the same. Send the date, address and guest count, and the team replies with a recommended unit and a placement plan. Call (209) 202-3741 or request a free quote online.

Contra Costa County temporary event information

Most restroom trailer problems begin before delivery, with a question nobody asked. Use this list on any company you call, including us. The answers tell you more than a photo does.

Who owns the trailer you will actually get, and who shows up with it? Some companies hire another outfit to deliver, and the person on the phone may never see the unit. Ask who delivers, who services during the event and whether that is the same team you spoke to.

What does the site need to provide? A good answer is specific: the number of circuits, the distance to the outlet, the ground type and the access width. If the answer is vague, expect surprises on the day. The best companies ask you about the gate and the surface before you ask them.

What is included in the rental? Delivery, setup, supplies, service and pickup should each have a clear answer. Ask whether supplies are restocked at each visit and whether a pump-out is part of a multi-day plan. A line item you did not expect is a sign to ask again.

How will the placement be decided? The trailer should sit on level ground, out of the photo backdrop and away from the parade route or the main entrance. Ask for a simple placement drawing. If you get one, you have a company that has done this before.

Do they have an accessible option and how does it work? An ADA unit should have a ramp and a firm path to the door. Ask for the unit’s room layout and whether it can be placed beside the main trailer so guests do not have to walk across the lot.

What happens if something goes wrong during the event? You need a live phone number, a named contact and a clear answer about who comes out. Test it before you book by calling at an odd hour and seeing who picks up. The Lavatory NorCal answers at (209) 202-3741. Many customers also look at mobile shower trailer rentals in Northern California before they decide. Many customers also look at mobile sleeper bunkhouse rentals in Antioch before they decide.

Tanks are pumped on a schedule built around your busiest hours, so a visit lands well before they get close to full. The same visit restocks soap, paper and towels. A 5-Station holds 520 gal of waste and a 9-Station holds 750 gal, so a one-day wedding rarely needs a pump-out while a four-day fair weekend does. Tell the team the dates and the expected crowd, and the plan is set before the trailer arrives.

July highs run about 90 to 91°F with lows near 58°F, and January highs sit in the mid 50s with lows near 40°F. On hot days the team places the trailer in shade where possible, keeps the door side away from the afternoon sun and has the interior cooled before guests arrive. In winter, rain is a bigger problem than frost, so the trailer goes on firm, level ground with a hard path from the parking area. The Delta breeze picks up late in the day, which matters more for tents beside the trailer than for the trailer itself.

Often you do. Venues commonly keep an approved vendor list, set load-in windows and ask for an insurance certificate. HOA rules in tract neighborhoods may limit what sits in a driveway or at the curb, and a trailer on the street can need a city encroachment permit. Ask your HOA, venue manager or the city first, and the team sends spec sheets and a footprint drawing for your request.

It will feel like a real bathroom. Guests find a flushing china toilet, a sink with running water, a mirror and lighting, in a private room with a door that locks and separate women’s and men’s sides. A trailer costs more than a basic plastic unit, but delivery, setup, stocking, service and pickup are all part of the rental. The Lavatory NorCal does not offer plastic units, so the choice is a clean private room or a different vendor.

Yes. A trailer works well as a foreman or executive restroom on a build that runs for months. It needs a level pad, a power circuit and pump-truck access. The service schedule then matches the work week. The ADA + 2 suits job sites of up to about 30 crew, and a bigger crew calls for more units.

Size is only part of it. Quotes move with the station count, the length of the rental, how far the trailer travels, how often it is serviced, how hard the site is to reach and whether a generator is needed. Demand on your date also plays a part. The fastest way to get a real answer is to send the address, the date and the guest count.

Wedding season in the Antioch and Brentwood area runs from spring into October. Lock the venue and date first, then the trailer, then a placement diagram that shows the gate, the ground and the cord path. Send the date, guest count, address and surface type to request a quote, and the team replies with a recommendation.

Two trailers in two spots usually beat one huge trailer, because peak demand comes in bursts like the toast, the end of a set or the parade finish. A second trailer near the bar or the stage cuts walking distance and gives guests a backup when one is full. For a festival, add an ADA unit even when the main trailers are large.

Water is not a concern because tanks are onboard, so only power sets the distance. The 5-Station needs one 20 A, 120 V circuit within 100 ft. Longer runs need a heavy-duty cord, and a generator is an option when no outlet is close.

For the 2-, 3- and 5-Station, yes, as long as it is a dedicated 20 A, 120 V circuit. The 9-Station and the ADA + 2 need two such circuits. Avoid sharing the circuit with a caterer’s equipment, since a tripped breaker takes the lights out.

Toilet paper, paper towels and hand soap are stocked before delivery and restocked at each service visit. Mirrors, interior lighting and sink water are part of the unit. You do not need to bring anything.

Yes, and many weddings and festivals schedule it that way so the trailer is set and checked before guests arrive. Tell the team the event hours and the access limits at the site, and the delivery and pickup windows are set around them.