Transparent budget and capital-cost estimating — from order-of-magnitude figures for early planning to firm quotations for sanction.
Process Consultation — in depth
Sound investment decisions need credible numbers. We provide budget estimates appropriate to the stage — order-of-magnitude for early feasibility, then firm quotations once the design is fixed — with whole-life operating costs so the business case is complete.
What matters in practice
Early budget figure for planning.
Fixed price on a defined scope.
Power, chemicals, labour and disposal.
Capex plus opex over the asset life.
| Class | Accuracy | Use |
|---|---|---|
| Order-of-magnitude | ±30–50% | Feasibility |
| Budget | ±20–30% | Planning |
| Firm | ±5–10% | Sanction |
| Whole-life | Modelled | Business case |
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Read MoreReynolds & Bauhm designs and delivers process consultation solutions backed by process engineering and performance guarantees.
Fundamentals, design drivers and practical guidance
Transparent budget and capital-cost estimating — from order-of-magnitude figures for early planning to firm quotations for sanction.
Effluent characterisation is the foundation — a representative sampling and analysis campaign capturing not just averages but the variability, peaks and shock loads a real plant must tolerate. Designing to an average alone produces a works that fails on the bad days; characterising the distribution is what lets the design carry genuine margin where it matters.
The feasibility study then screens candidate process routes against consent, footprint, operability and cost, narrowing to a preferred option with a defensible basis. Budget estimating attaches a realistic capital and operating cost to that option at the appropriate class of accuracy, so investment decisions rest on engineering rather than optimism, and the site survey confirms access, services, levels and constraints that shape what is buildable.
Reynolds & Bauhm delivers the early-stage rigour — survey, characterisation, feasibility and estimating — that determines whether a scheme succeeds, giving clients a defensible technical and commercial basis before they commit.
What our engineers assess on every scope of this type
| Parameter | Typical basis | Why it matters |
|---|---|---|
| Risk | Assumption register | Carried forward into design |
| Characterisation | Representative sampling | Captures variability, not just mean |
| Site survey | Access/services/levels | Defines what is buildable |
| Feasibility | Route screening | Narrows to preferred option |
| Estimate | Defined accuracy class | Sound investment basis |
| Operability | Whole-life view | Avoids a plant nobody can run |
Common questions on process consultation
By replacing assumptions with data — characterisation, survey, route screening and costing — so the technical and commercial basis is defensible before capital is committed, when changes are still cheap.
Because designing to an average misses the peaks and shock loads that actually break a plant. Budget & Capex Estimating relies on a representative campaign capturing the distribution and variability, so the design carries margin where it is needed.
A screened comparison of candidate process routes against consent, footprint, operability and cost, narrowed to a preferred option with a documented, defensible basis for the decision to invest.
Early estimates are produced to a defined accuracy class appropriate to the information available, and the basis and assumptions are stated, so decision-makers understand the confidence behind the figure rather than treating it as fixed.
Our expertise spans multiple industries with sector-specific water treatment solutions.
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Send your influent analysis and our engineers assess your process and recommend a tailored treatment solution — free, confidential and no obligation.
Select the regulatory standard for your country — it sets which parameters we need for a compliance-aware process assessment.
Required parameters for the chosen standard are flagged on the sample form. You can still submit a partial set and we will advise what else to test.
Your sample is stored against your company so we can track the project. Provide a company name or email as a minimum.