Tanker haulage & wastewater disposal
When you cannot discharge locally, hauling wastewater away by tanker works, but the bill never stops. Caskade compares what you pay today against treating it on site: for discharge, reuse, or hauling less. Three or more proposals from specialist manufacturers, not one vendor's pitch.
No ceiling
Tanker bills keep coming, per load, all year. Peak season often costs more than any single invoice suggests.
< 3 years
Typical payback when haulage is frequent or high-volume. Often faster than efficiency projects competing for the same budget.
3+ quotes
Indicative manufacturer proposals benchmarked against your haulage spend, not a brochure figure.
The question that actually matters is not who can haul this more cheaply, but what it would cost to stop hauling it at all, or to haul far less of it.
If you already pay a hauler, getting a better rate or a second quote is a reasonable instinct. Both can shave something off the invoice. Neither stops the cost from coming back every month, and it usually rises with fuel, landfill fees, and what the receiving plant charges.
The question that actually matters is not who can haul this more cheaply, but what it would cost to stop hauling it at all, or to haul far less of it.
Free for qualifying projects. Typically ready a few weeks after we receive your hauling invoices and water data.
Per-load or per-tonne hauling invoices. These rise with fuel and distance. In busy periods the annual total is usually higher than any single invoice suggests, and it rarely sits on one clean budget line.
The cost of wastewater disposal may rise at any moment. When a landfill or treatment plant raises its charges, most haulage contracts pass at least part of that increase on to you at the next renewal.
On-site storage and downtime risk. Sites without treatment need tank capacity while they wait for collection, and are exposed if a pickup is delayed, missed, or the hauler's capacity is full.
Waste-side compliance risk, separate from discharge. Storing or handling wastewater incorrectly carries its own regulatory risk, separate from any discharge permit.
Wash-down and cleaning water that is too concentrated to discharge directly. Often the largest volume here, and often the easiest to treat on site.
High-strength water from waste sites. Frequently the biggest disposal cost on the site, and a strong case for cutting volume rather than hauling it all away.
Chrome, solvents, heavy metals, or other constituents that legally require a licensed waste manager. Full elimination is not always realistic; reducing volume usually is.
Stream types vary by site and process. Volume and composition are always site-specific.
A site with no sewer faces a different problem than one with a connection it cannot currently meet. Both may pay a hauler, but only one can necessarily eliminate that cost through discharge compliance alone.
| Route | Volume impact | Best fit |
|---|---|---|
| Treat to sewer discharge limits, stop hauling entirely | High | Best first option where a sewer connection already exists |
| Treat and reuse in-process (CIP, cooling, cleaning) | High | Strongest case where a genuine reuse demand already exists on site (see our water reuse page for hospitality sites) |
| Evaporation or concentration to cut volume hauled | Medium to high | Fits hazardous or high-TDS streams where full elimination isn't realistic |
| Treat to a lower hazard classification | Medium | Shifts a stream to a cheaper waste category instead of eliminating haulage |
| Zero liquid discharge (ZLD) for closed-loop sites | High | Where no discharge permit is achievable at all |
Manufacturer-published examples from sectors we work in, not all brokered by Caskade, shown for context.
Payback: 13 months
Camping Úbeda S.L. · Úbeda, Andalusia, ES
Without sewer access, the site paid for wastewater disposal via tanker trucks → installed circular showers and centralised water reuse → payback in 13 months with more than 70% wastewater recovery.
Outcome: direct discharge, no external disposal
A food and beverage producer moved from offsite disposal to permitted direct discharge. A compact on-site biological system was sized for variable, cleaning-driven loads. Result: consistent discharge compliance and the previous tanker cost eliminated.
Outcome: up to 99% water recovery
A manufacturer with high-salinity process water and rising disposal costs installed vacuum evaporation to recover water for reuse and shrink what still needed hauling to a small residual. Disposal volume cut to a fraction of the original.
If the goal is to stop hauling by meeting a sewer or environmental discharge permit, the limits depend on your local water authority. Usually the fastest route off tanker dependency where a connection already exists.
Using treated water for a new purpose on site (cleaning, cooling, irrigation) usually needs reuse authorisation, not just a discharge permit. Rules vary by country; we confirm what applies to your site.
Where full elimination is not realistic, the usual path is reducing the volume, and sometimes the hazard classification, of what a licensed waste manager collects. That still cuts the recurring cost.
How it works
500+ specialised vendors
Caskade compares solutions from our network of 30+ vendors based on your site and effluent data
The best solution for your site
Caskade requests and evaluates 3+ proposals on cost and technology.
Contaminant load, volume, variability
Existing infrastructure, connection points
E.g. process recirculation or non-potable uses.
500+ in our databases
Possibly with different reclaimed-water use cases and/or technology routes
GET YOUR COMPARISON
3+ indicative proposals from specialist manufacturers, filtered for your site
A direct comparison of hauling spend against the treatment alternative
A documented recommendation you can defend with leadership and operations
The regulatory route that applies to your site: discharge, reuse, or reduction
Free* if you can provide:
Your hauling or disposal invoices (for return calculations)
A laboratory analysis of the water (for equipment design)#
*Manufacturers pay. #If you do not yet have lab analysis, we arrange it for a fixed fee. See FAQ for full pricing.
Hauling or disposal invoices, water volume (m³/day or m³/month), any quality analysis, and a short process description.
Typically ready a few weeks after we receive your invoices and water data.
Send your hauling invoices, water volume, and any quality data you have. We return indicative proposals benchmarked against what you pay today.
FAQ
Is on-site treatment only an option for sites without a sewer connection?
No. Some sites haul wastewater because they have no sewer connection at all; others have a connection but cannot currently meet its discharge limits, or the stream's classification requires a licensed waste manager rather than standard discharge. The right route differs between these cases, which is exactly what a site-specific comparison is for.
What if fully eliminating tanker haulage isn't realistic for our stream?
The more common outcome in that case is a large reduction rather than full elimination: an evaporation or concentration step that shrinks the volume a licensed waste manager collects, sometimes lowering its hazard classification too, which still cuts the recurring cost significantly.
When does zero liquid discharge make sense?
Zero liquid discharge (ZLD) makes sense where no discharge permit is achievable at all and the site must operate a fully closed loop. It is the most capital-intensive route, so it is usually justified only when discharge compliance and partial volume reduction have both been ruled out, or when the recovered water carries real in-process value.
Do we have to commit to a water reuse project to make this work?
No. Discharge compliance alone is a valid, and often the fastest, outcome. Reuse only makes sense where a genuine destination for the treated water already exists on site.
How long does it take to know if this would pay off?
The comparison itself typically takes a few weeks once we have your hauling invoices and effluent data. The payback period for the resulting system varies by site, but is often under three years where haulage volumes are high or frequent.
Does this apply outside Spain?
Yes. The economics (recurring haulage cost versus a one-time treatment investment) and the three regulatory paths apply anywhere. Specific permit rules vary by country; we confirm the applicable framework as part of the comparison.
How much does an Eval cost?
If you can provide your water invoices (so we can size the project and calculate the return) and a water analysis lab report, your Eval is free: the manufacturers we bring into the comparison pay us, not you. This typically applies to campsites, hotels, resorts, industrial laundries, retrofits of existing treatment plants and many industrial projects.
If you don't have a lab report yet, we arrange sampling and analysis as part of the Eval, at cost. Ask us for a quote.
Extended-scope projects (multiple sites, multiple effluent streams, tender specifications, financing documentation) carry fixed fees, which we share after a first call.
And on any paid Eval, we refund 50% of the fee when your project is installed through a manufacturer we introduced, within 12 months of delivery, for installations from 25,000 euros.
