# DEMO DOCUMENT — NOT A CONTROLLED DOCUMENT — DO NOT USE ON PLANT

Document number: WRPS-DEMO-003
Title: Station Design Basis Extract — Discharge and Storage
Revision: 0
Effective: 2026-01-01

## 1. Scope

A fabricated design basis extract for the Waterloo Road Pump Station STN-001,
written so that the Advisory branch of the plant assistant has documented
limits to retrieve and cite during a no-LLM demonstration. Every figure below
is invented. Where it contradicts db/seed/tags.csv, the seed data is the one
derived from the register map and this one is fiction.

## 2. Discharge

The discharge manifold MAN-301 is described in this fabricated extract as
having a stated hydraulic capacity against the 22 m static lift. The three
pumps PU-301, PU-302 and PU-303 share a common speed reference, and this
fabricated extract states that the drives are clamped at both ends of their
range rather than being free to run to zero.

## 3. Storage and spill

This fabricated extract states that the wet well WW-101 provides storage
between the stop-all level and the spill weir crest, that the weir crest is the
point at which flow leaves the site, and that the volume between the current
level and the crest is the quantity of interest when assessing how much time is
available.

## 4. Limits stated in this fabricated document

- The station is not to be operated with the level held above the high level
  alarm setpoint as a normal operating state.
- Continuous operation of all three pumps is described as a short-duration
  condition, not a normal duty.
- Any change to a level setpoint is described as requiring assessment against
  the storage remaining to the weir crest.