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RD 1085/2024 — Reuse of reclaimed water

Guide to convert the regulatory framework into a coherent basic project: quality classes, requirements, and technical decisions.

1. Requirements map (from regulation to decisions)

The goal isn’t “copying the text”: it’s translating requirements into parameters, quality ranges, and verifiable operating criteria.

2. Quality classes and system consistency

The chosen quality class determines treatment, operation, and the feasibility of the intended reuse. Early decisions lock in cost and risk.

3. What to document in the basic project

  • Input data baseline (effluent and variability)
  • Justification of the technology routes evaluated
  • Critical operation and control points
  • Evidence for internal approval

Card: defensibility

A solution that sounds plausible isn’t enough. You need a comparison on a shared baseline and documented decisions on what you reject.

Card: traceability

Connect regulatory requirements to technical parameters and to the operating plan.

4. Recommended next step

Before selecting a vendor, compare relevant alternatives in parallel using identical input data.