Yorkshire Water completed a comprehensive report the evaluation of a portable wastewater sampler: eventually selecting the Aquamatic Aquacell P-2 Coolbox, which meets the stringent requirements of E32.

Yorkshire Water has completed a comprehensive report on how it went about evaluating a portable wastewater sampler: eventually selecting Aquamatic the Aquacell P-2 Coolbox, which meets the stringent requirements of E32 - the Automatic Sampling Equipment Specification for the Urban Wastewater Treatment Directive. During the winter sampling regime, the sampler was run for twenty consecutive twenty-four hour composite sampling periods at a Yorkshire Water sewage treatment works near Sheffield. The plant treats around 175 MLD of domestic and trade sewage, using two activated sludge plants.

Around half of the samples were taken from the influent sewage, after fine screening and grit removal, but prior to primary settlement.

The remainder were taken from the final effluent sampling point.

Throughout the course of this trial, the Aquamatic sampler performed reliably.

No breakdowns occurred.

The P-2 Coolbox was found to perform identically during winter and summer conditions.

This is in keeping with the findings of a lengthy WRc appraisal, which noted that the sampler was able to achieve a temperature of 0-40C over the range of temperatures expected from the British climate.