The short answer

Before fixing the guest-unit count, give a qualified local designer the survey, uses, plumbing and amenity schedule, operating pattern and phases. Require a documented design-flow basis, soil evaluation, collection and dispersal concept, permit route and maintenance owner. The responsible authority decides what can be approved.

A twelve-cabin sketch can leave the wastewater area blank.

A line to a tank is only the beginning. Collection, treatment, soil dispersal, service access and a possible later phase all compete for land. A vendor rating or generic gallons-per-cabin assumption cannot settle the key count.

01

Source file

List every source of wastewater.

The 2026 Glamping Show Americas directory places Anua in its wastewater-treatment category. Anua’s own glamping article discusses collection, treatment and dispersal together. The listing and supplier article are discovery material, not an approval for a specific property.

Start the project file with private bathrooms, shared showers, laundry, food service, staff facilities, events and any RV connection. Mark which uses belong to phase one. A store without a sink has a different service profile from a kitchen.

01

Uses and flow

Guest and staff fixtures, shared showers, laundry, food service, event use and phase assumptions.

02

Receiving site

Evaluated soil, groundwater and slope conditions, water sources, dispersal location and service access.

03

Responsibility

Authority route, designer, collection interfaces, maintenance provider and future-phase trigger.

02

Design flow

Cabin count is one input.

Beds per cabin, shared fixtures and simultaneous amenity use can change the design basis. Ask the local professional to record the method required by the authority, every use included, and assumptions still dependent on the operating plan. Keep separate scenarios when the amenity program changes.

EPA defines a large-capacity septic system as one receiving solely sanitary waste from multiple dwellings or a nonresidential establishment with capacity to serve 20 or more persons per day. Campgrounds, RV parks and hotels are possible examples. The threshold does not set allowable occupancy or classify this project on its own. Ask the responsible authority if that federal review path applies.

03

Land and soil

The site must accept the flow.

EPA describes the soil absorption field as part of a typical septic system’s treatment path. An overloaded field can surface sewage or back up plumbing. A tank size alone says nothing about the receiving land.

Place the proposed field, collection lines, service route and any required reserve area on the survey. Mark wells, surface water, slopes, flood conditions, structures and future paths. The site evaluator and designer determine which constraints matter under local rules. A compact treatment unit does not automatically remove the need for an approved outlet or dispersal area.

04

Permit route

Record the county and authority.

Florida’s current DEP permitting FAQ says a site evaluation assesses soil, topography and other conditions. It lists Broward among counties where the local Department of Health office still issues onsite-system permits during the program transfer; other named counties use DEP. Local ordinances can add requirements. This is a routing example, not a permit conclusion for any parcel.

Ask the local reviewer what application, flow basis and site-evaluation documents are needed. If the concept may fall under EPA’s large-capacity septic definition, raise that question directly rather than assuming the state application covers every federal obligation.

05

Operating owner

Design the maintenance handoff.

Cabins spread across a property create collection runs and possible elevation changes. The designer determines where gravity, pumps, power and access are required. Put these interfaces beside pathways, other utilities and drainage. The unit quote may stop at a plumbing connection; the site system needs a named owner.

EPA identifies the system owner or another responsible management entity as accountable for upkeep, repairs and replacement. Its decentralized-system guidance includes maintenance contracts, operating permits and management entities among possible approaches. The actual obligation depends on the system and jurisdiction. Identify who responds to alarms, services the system and keeps records.

06

Key-count gate

Keep the unit count conditional until these are answered.

Which guest, staff and amenity uses generate wastewater in each phase?

What design-flow method and inputs will the responsible authority accept?

Where are the evaluated soil and dispersal areas, service routes and any required reserve area?

Which agency receives the application, and does a federal large-capacity question apply?

Who designs the collection and treatment interfaces, and who will maintain them?

Which change in unit count or use triggers a fresh design or approval review?

Use the feasibility study guide to separate evidence from aspiration. The utility-plan guide tracks other service routes, while the phase-one key-count article frames the first operating test. Carry design and maintenance scope into the complete project budget.

FAQ

Questions before the unit count is fixed.

Can a vendor’s advertised daily capacity set our cabin count?

No. Product capacity does not establish site soil suitability, collection design, effluent dispersal, local permit criteria or the uses that drive the project’s design flow.

Does a treatment unit eliminate the need for land-based dispersal?

Not by itself. The outlet still needs an approved route. Treatment, reuse and dispersal depend on the specific site and governing rules.

Is the 20-person EPA threshold the maximum guest count?

No. It is part of EPA’s definition of a large-capacity septic system under the Underground Injection Control program. It does not set a property’s allowable occupancy or prescribe a septic design.

Can we leave phase two out of the first site plan?

The local project team should determine how to present current and future phases to the authority. Reserved land is not an approval of future wastewater flow.

Does the UNIKOST calculator size a septic system?

No. It is an early planning screen, not a wastewater-flow, engineering, permit, price, occupancy or approval calculator.

Sources

Discovery and primary references checked September 21, 2026.

The show listing is a discovery item. Anua’s article is supplier-authored, not independent evidence of performance or site suitability. No supplier relationship, endorsement, treatment capacity, permitted key count, project result or guaranteed environmental outcome is claimed. Federal and Florida sources frame research questions; qualified local professionals and the responsible authority make project decisions. Author and reviewer: Alex Green, Manager.

Working from a site plan?

Expose the unresolved infrastructure work before ordering cabins.

The calculator is an early planning screen. It does not calculate wastewater flow, engineering, permits, price, occupancy or approval.

Run the project calculator