Daily Raw Wastewater Quality at Eastern Treatment Plant

Delivering daily flow-weighted samples of raw sewage quality parameters at Melbourne's Eastern Treatment Plant, collected at 7:00 AM each day. It includes measurements for Ammonia, Biochemical Oxygen Demand, Chemical Oxygen Demand, Nitrate plus Nitrite, and total Nitrogen, all reported in milligrams per liter. The data is intended to be matched with hourly flow data for load calculations.

Use Cases

• Calculate daily pollutant loads by combining Ammonia, BOD, or COD concentrations with corresponding hourly wastewater flow data.
• Analyze trends in Biochemical Oxygen Demand and Chemical Oxygen Demand to assess the organic strength of incoming sewage over time.
• Model the relationship between Nitrogen species, such as Ammonia and Nitrate plus Nitrite, to study treatment plant influent characteristics.
• Monitor compliance or baseline levels for key wastewater quality parameters like total Nitrogen and Ammonia as N.

Strengths

• Data is collected daily using a flow-weighted auto-sampler, providing a representative sample of the 24-hour period.
• Includes five specific water quality parameters (Ammonia, BOD, COD, Nitrate plus Nitrite, total Nitrogen) with defined units (mg/L).
• Explicit documentation details the sampling methodology and timestamp interpretation (e.g., 5/1/19 07:00 represents the previous 24 hours).

Limitations

• The dataset's row count, column count, and temporal coverage are unspecified, limiting assessment of its scale and completeness.
• Accuracy and completeness are explicitly disclaimed by the data provider, Melbourne Water Corporation.
• Data requires joining with a separate wastewater inlet hourly flow dataset for calculating incoming pollutant loads, as noted in the description.

Provenance

Source

Melbourne Water Corporation via Melbourne Water Open Data Hub.

Collection Method

Daily flow-weighted auto-sampling at 7:00 AM, with laboratory analysis for specified parameters.

Freshness

Last updated on 2026-03-20, though the actual data's time range is unknown.

Geography

Eastern Treatment Plant, receiving sewage from the eastern side of Melbourne, Australia.