Clean Water - Clean Environment

We operate the five sewage treatment plants, the main collector in Pustertal and the sewage sludge drying and incineration plant on behalf of the Pustertal Wastewater Consortium.
We treat the wastewater of the entire Pustertal Valley, dispose of the residues and thus ensure that our domestic waters are kept clean.

On our homepage, we would like to give you an insight into our work and give you extensive information about our water, waste water and the disposal of sewage sludge.

Our locations in the Pustertal Valley

ARA Tobl ARA Tobl

IDA, TRA + TVA in Tobl


ARA Innichen - Sexten ARA Innichen - Sexten

Waste water treatment plant in San Candido

ARA Wasserfeld ARA Wasserfeld

Waste water treatment plant in Welsberg

ARA Sompunt ARA Sompunt

Waste water treatment plant in Badia

ARA Unteres Pustertal ARA Unteres Pustertal

Waste water treatment plant inMühlbach


Latest news

Reconstruction and expansion of the Unteres Pustertal WWTP

The increasing wastewater volumes made it necessary to expand the capacity of the Unteres Pustertal WWTP.

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Results of the OptDigest research project

How can the process of biogas production from wastewater treatment plants be optimized? One of the biggest problems in this process is the formation of foam in the digesters, which leads to reduced biogas production and increased maintenance costs for the plant. A joint research project of Ara Pustertal AG, Atzwanger AG, Stuga KG and Inewa Consulting GmbH looked for causes and solutions. Now results are available.

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Optimisation work at the WWTP Innichen/Sexten

The San Candido/Sexten wastewater treatment plant has been in operation for 19 years, so various tasks were due to be carried out to optimise the plant.

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