Best-fit markets for a portable restroom rental business

What to take away

Six markets worth the drive

Greater Houston, Texas. Harris County construction runs alongside refinery and turnaround work at Deer Park, Pasadena, Baytown and Texas City, and the event calendar runs nearly year-round. Turnarounds land in spring and fall and leave standing orders that last months.

The Houston Livestock Show and Rodeo fills about three weeks at NRG Park from late February into March, so event units earn in a shoulder month. The region has several municipal and private septage receiving points, so gate one clears easily. Heat raises service frequency on event units, which lifts revenue per stop.

The City of Houston's 69th Street Wastewater Treatment Plant is the municipal receiving point to call first. A typical one-way run from there to the outer service edge, Katy or Pearland, is 25 to 45 minutes off-peak.

Dallas-Fort Worth, Texas. Sprawling subdivisions, data center and warehouse construction, and the State Fair of Texas. The State Fair runs 24 days at Fair Park and closes in mid-October. The Fort Worth Stock Show and Rodeo runs about three weeks from mid-January into early February.

The Trinity River Authority's Central Regional Wastewater System in Grand Prairie and the Village Creek Water Reclamation Facility in Fort Worth are the receiving points to call. A typical one-way run from either to the outer edge is 35 to 60 minutes.

The metro is large enough that a single yard cannot cover it, so a new operator can pick a quadrant, north Fort Worth or the mid-cities, and run dense routes there.

Phoenix, Arizona. Maricopa County builds year-round with no freeze shutdown. Cactus League spring training brings five weeks of games to Scottsdale, Mesa, Glendale, Peoria and Surprise, starting in late February.

The City of Phoenix's 91st Avenue Wastewater Treatment Plant in Tolleson is the municipal receiving point to call. A typical one-way run to the outer edge, Queen Creek or Buckeye, is 35 to 60 minutes.

Summer heat shortens the working day and drives up water and hand-wash demand. The trade-off is a summer event season that thins out.

Nashville, Tennessee. Davidson County pairs a strong permitted-event calendar with steady residential and commercial construction. CMA Fest draws four days of crowds to Nissan Stadium in June, and the new stadium build runs a multi-year construction schedule.

Metro Water Services' Central Wastewater Treatment Plant and the Whites Creek Water Reclamation Facility are the receiving points to call. A typical one-way run to the outer service edge, Lebanon or Dickson, is 30 to 50 minutes.

The metro is compact enough that one yard covers most of it, which keeps drive time low.

The I-85 corridor, North Carolina and South Carolina. Greenville, Spartanburg, Greer, Charlotte and Gastonia. BMW's Spartanburg County plant and the inland port in Greer keep contractors and freight moving through the corridor.

Charlotte Water's McAlpine Creek Water Reclamation Facility and ReWa's Mauldin Road facility in Greenville anchor the two ends. A typical one-way run from either to the far edge, Gaffney or Salisbury, is 45 to 70 minutes.

Manufacturing plants, distribution centers and road programs generate long-schedule standing orders. Two states means two sets of hauling rules, so trace both. North Carolina's Department of Environmental Quality and South Carolina's Department of Environmental Services are separate calls.

The Front Range, Colorado. Denver, Aurora, Boulder and Fort Collins line the I-25 corridor. The National Western Stock Show fills 16 days in Denver each January, which keeps a winter route alive when construction slows.

Metro Water Recovery's Robert W. Hite Treatment Facility in Denver is the regional receiving point, with its Northern Treatment Plant in Brighton as the second. A typical one-way run to Fort Collins or Castle Rock is 45 to 70 minutes.

Construction volume is high and event work is steady.

Ranked side by side, the six differ on disposal access, season length and how hard drivers are to hire.

The staffing column is a judgment from the wage check in gate seven, not a statistic.

Each of these clears the disposal gate, which is the first thing to verify. The rest is arithmetic you run yourself.

Gate one: is there somewhere to empty

Find the treatment works, septage receiving station or transfer point that will accept your loads. Establish the acceptance conditions, the hours, and what paperwork rides with a load. In most markets that means a hauler account on file, a manifest per load and hoses that reach the discharge point.

A market with demand and nowhere to empty is not a market. It is a driving job with a good story attached.

If there is nowhere within a workable drive, stop. This gate ends most assessments and belongs first, because everything downstream depends on it. If there is exactly one receiving point, find the alternative before you call the market viable.

Gate two: measure the run from the dump to the service edge

Measure the run from the receiving point to the far edge of the area you intend to serve, at the hours you would actually drive it, then work out how many productive stops fit around the round trip.

A market where every route surrenders an hour to emptying needs a higher rate to earn the same money, and that rate is rarely available. The arithmetic sits in the operating day end to end.

Gate three: find the authority that permits hauling

Registration to haul, vehicle requirements and local permits are jurisdiction-specific. Work that looks identical across a county line can need a different permission.

Texas runs hauler registration through the Texas Commission on Environmental Quality, with county health departments such as Harris County Public Health adding local rules. Arizona runs it through the Arizona Department of Environmental Quality, with Maricopa County Environmental Services handling county requirements.

Tennessee runs it through the Department of Environment and Conservation, Division of Water Resources, with Metro Nashville adding local conditions. North Carolina uses its Department of Environmental Quality and South Carolina its Department of Environmental Services, with Charlotte Water and ReWa setting discharge terms at each end.

Colorado uses the Department of Public Health and Environment, Water Quality Control Division, and each receiving plant sets its own discharge terms. Confirm each office and form before you file.

Ask before you commit, not after the first invoice. The method for tracing each authority is in how to trace your own licensing, and the wider map is in the legal and insurance ground rules.

Gate four: count the demand generators inside the radius

Not population. Count these inside the radius you drew around the receiving point.

A market strong in the first category and weak elsewhere is level, unglamorous and profitable. A market that is all events has four good months.

The Census Bureau's Building Permits Survey publishes permit counts by county and place, and city permit portals list commercial projects under review. Those two sources give you the count without buying a market study.

Gate five: measure the workable season

In a cold region the ground stops being workable, construction slows, and the operating day shortens against the same fixed costs. Ask how many months of construction season the area has, and count the standing orders that run through winter. Winterizing is an equipment question, not a market one.

Gate six: who is already there

Drive the area and look at the units standing on sites. Note the operator names, unit counts, condition and placements.

Look for gaps rather than rivals: segments nobody serves well, sites where the visible standard is poor, or areas with demand and no visible operator. That last case usually has an explanation, and it is often gate one.

How to run the survey is set out in how to count the competition you can see.

Gate seven: can it be staffed

A route needs a driver, and in a new area you hire against every other employer there, not just other sanitation firms.

The Bureau of Labor Statistics wage tables publish occupational wage estimates by area, which is how you check whether your assumed wage is competitive where you would hire.

The vehicle you intend to run also shapes the hiring pool, since a truck above a licensing threshold narrows it sharply.

What the assessment cannot tell you

Prices stay hidden because you cannot read a contract from the roadside. Contract terms and how long incumbents have held accounts stay hidden too. What customers must provide is set by each site's authority, not by you.

Rate figures are left out on purpose. A per-visit price is set by the distance from the receiving point, the visits per month, the unit count on site and site access.

A number that holds in Houston is wrong in Nashville. Ask two local operators for a per-visit rate and a monthly construction rate before you model revenue.

OSHA's sanitation standard is the workplace baseline, and state plans and permit conditions can add more. The SBA's business guide covers how market research and expansion planning fit together generally. What a counted market then implies about growth is in what limits growth here.

Testing before committing

Where you can, serve a handful of stops in the candidate area from your existing base for a season. That produces real drive times, real access problems and real seasonality at a fraction of the cost of a second yard.

Set in advance what result would make you commit and what result would make you stop, and write both down. A test with no stopping condition is not a test.

Common questions

Is a rural market viable?

It can be, where standing orders are long and clustered around something specific such as agriculture or a long-running project. What kills rural markets is scattered single units, not distance by itself.

What about a market with one large incumbent?

Often better than a market with six small ones, because a single incumbent cannot serve every segment and the gaps are easier to see. What matters is whether the segment you can serve is large enough.

How long should the assessment take?

Gate one takes a phone call. The counting takes a few days spread over a month. Anyone who has decided within an afternoon has skipped the gates that matter.

Can a market be too seasonal to enter?

Yes, if the fixed costs of the fleet cannot be carried through the off months. The test is whether enough year-round standing orders exist, not whether the peak looks impressive.

Which of the six is easiest to start in?

Nashville, if drive time is the constraint, because one yard covers the metro. Greater Houston, if disposal capacity is the constraint, because several receiving points share the load. Phoenix suits an operator who wants year-round construction and can absorb a hot, quiet summer.