Rossi household, Adelaide: specialist findings

Release B for the Adelaide home: what a twelve-month measurement year found, the specialists' implications, and the data as CSV. Synthetic case data, handed over in week 7.

Synthetic case data. This is a generated measurement year, produced by the course's model to be consistent with the Adelaide home. It is not a measurement and no instrument recorded it. It stands in for the year the story says passed between week 7 and Assignment 2, and it is identical for every student who took this home, whatever their Assignment 1said.

Memo

Common Ground Engineering, specialist team, 2028-04-14 · measurement year April 2027 to March 2028

• Dr Mara Quinlan — water systems and hydraulics
• Tomasz Ferreira — soils and horticulture
• Aisha Rahman — monitoring, data quality and records

The specialists report conditions and what follows from them. They do not choose the system. That is your recommendation to make inAssignment 2.

What the year found

The measured year, month by month

An extract. The full table, with every fixture group, the bore, overflow and the quality flags, is in SYNTHETIC-monthly.csv below.

Growing zones

Water quality

Hydraulics

Tank outlet at RL 100.55 m; highest fixture is the laundry tap at RL 101.6 m, giving a static lift of 1.1 m. Currently served: two garden taps through the 0.4 kW pump.

The WC cistern's inlet is on the east external wall, 0.9 m above the floor, so a rainwater line can reach it without opening an internal wall.

What it costs the household now

• Electricity at $0.33 per kWh.
• Reticulated water at $3.60 per kL, plus a supply charge of $820 a year.
• Pump pressure switch replaced in January, $95.
• Beds mulched twice; about 6 hours each time.

What the specialists conclude

1. The January decline in the beds is water stress compounded by salinity in the vegetable beds, not a nitrogen shortage.
2. The 5 kL tank on the garage roof ran dry in every month from October to April; the house roof, more than five times larger, sends all its water to the street.
3. The WC cistern can be supplied from outside, so toilet flushing is available to a rainwater design without opening a wall.
4. Existing electricity for the garden pump was small; the household's concern about running costs will turn on any new pumps, modules and consumables.

What they could not settle

• What the family would accept as a manageable winter crop, which the year did not test.
• Whether a salinity flush with rainwater before planting would recover the beds in one season.

Gaps in the record

• 2027-10, garden_applied_kl: Drip-line meter read by the household on paper in October; transcription checked against the mains bill

A gap is marked as a gap. Interpolated values are flagged in thequality_flag column of the monthly CSV, and anything you conclude from those months should carry the same flag.

Download the findings

Every file's first line says what it is. The data dictionary gives each column its unit, meaning and kind — synthetic measured year, derived,calendar or sourced. Keep those apart in your own workbook.