Know what's on your floor, and how long it's been there.
From the moment a load comes off the truck to the certificate of disposal landing back on the generator's record — container by container.
One module, three kinds of building.
Transfer facility
A contractor's warehouse holding manifested containers between the collection and the outbound shipment. The clock that usually governs here is the transfer facility hold (40 CFR 263.12).
TSDF
A permitted treatment, storage and disposal facility. The permit sets the storage limit, so the clock rule is the facility's own.
Permanent HHW facility
A county or municipal drop-off that stores between hauls. Third-party inbounds with no job behind them carry their own paper on the receipt.
The days-in-storage question gets answered by walking out and reading labels.
A container's life on your floor.
Receive
Check in against the manifest: what the paper says on the left, what came off the truck on the right. Counts, scale weights and the location each container went to. Discrepancies are recorded at the dock, while someone still knows what happened. A third-party inbound with no job behind it carries its own paper — generator, EPA ID, generator status, transporter, MTN.
Store
Every container is inventoried — its label, its contents, its weight, its fill, and where it's standing — on a floor plan of bays, racks, floor areas and docks that you build, because every building is different.
The clock
A clock on each container, against the limit that applies to it. Each facility carries its own ordered rules, and the first rule matching a container's provenance governs it. The transfer hold, generator accumulation and a storage permit are three different clocks — so the limits are yours to set per facility, not numbers baked into the software. The clock reads as a status: within the limit, near it, or past it.
Consolidate
Bulk two part-drums into one and the new container's waste codes are the union of its parents' and its accumulation start is the earliest parent's. RCRA codes are never typed onto a container — they are always the union of its contents, so a bulked drum cannot miss one. Lineage is kept; the clock never resets.
Ship, and the certificate
Ship it out on one manifest with your facility as the offeror; its e-Manifest status and tracking number sit on the record. When the certificate of disposal comes back it lands on the shipment and on every source generator's record. A client whose terms require the certificate gets it attached to the bill.
Works on its own, or alongside the collection events, pickups and lab packs that feed it — same wastes, same profiles, same facilities.
Your wastes, containers, facilities, management methods, billing methods and limits are yours to edit. No developer ticket to add a facility.
Asked about the floor.
How does Mercovi track days in storage?
Every container carries an accumulation start date taken from the paperwork, and a clock measured against the limit that applies to that container. Each facility holds its own ordered rules — transfer hold, generator accumulation, storage permit — and the first rule matching a container's provenance governs it. No day count is stored in the software; the limits are yours to set per facility.
What is a TSDF container inventory?
A record of every container on a treatment, storage and disposal facility's floor: its label, contents, codes, weight, fill, location on the floor plan, provenance and clock. In Mercovi the inventory is built from receipts at the dock and consumed by outbound shipments, so it is never retyped.
What happens when two drums are consolidated?
The new container's waste codes are the union of its parents' codes, its accumulation start is the earliest parent's start, and the lineage is kept. The clock never resets.
Can the facility receive loads that didn't come from a Mercovi job?
Yes. A third-party inbound carries its own paper on the receipt — generator, EPA ID, generator status, transporter and manifest tracking number — and its containers go onto the floor plan with a clock like any other.
See it run a job end to end.
Tell us what you run — events, plant pickups, lab packs, a floor — and we'll show you the screens that matter to you.
Last reviewed 2026-10-02