01 October 2025 / Vienna, Austria
ÖSTAP International Water Consulting GmbH: IAWD Member of the Month
Contributed by:
Voice of the Danube

We proudly present the "Member of the Month" special feature series that provides insights into the work of our members, the successes they achieve, the challenges they overcome, and the thinking behind their IAWD memberships.

We introduce "Member of the Month" because we all know very well that IAWD's success is driven by lively communication, mutual support and shared know-how and experiences. The better we get to know each other, the more positive energy feeds into our community.
 


 

In which Danube region countries does the company operate?

Austria, Slovakia, Serbia, Croatia, BiH, Kosovo, Romania, Bulgaria, Nord Macedonia

The core of company’s work 

As one of the oldest planning offices in the Austrian water management sector, we offer our public and private clients customised solutions in all areas of cultural engineering and water management. In addition, we endeavour to continuously adapt our areas of expertise to technological developments and can also offer you complete solutions in the fields of hydrodynamic modelling or energy certificates, among others.

Mission statement or philosophy

With sustainable water solutions, we improve living environmental in Austria and around the world. Clean water is essential for healthy living!

Three interesting projects and/or key figures

Construction of water supply system Altai (Mongolia)
Soft loan project (financed from Austria)
54 km pressure pipeline
Total project volume: EUR 14 million
Services provided:

  • General planning, detailed design
  • Soft loan financing application
  • Project management
  • Construction site supervision

Sewer network modelling WV Wulkatal
Development of a hydrodynamic sewer network model for the entire service area
approx. 650 km of sewer network (combined sewer, stormwater, wastewater)
169 special structures (pumping stations, combined sewer overflows, etc.)
Services provided:

  • Model development 
  • Measurement and calibration
  • Assessment of the hydraulic performance of the sewer network
  • Analysis and optimization of combined sewer management

Construction of the Sewage main collector, Municipality Podujevo, Kosovo
Wastewater main collector:
Soft loan project (financed from Austria)
Total length: 15.119 m 
Total project volume: EUR 5,349.000,--
Gravity Sewer made of PP-pipes SN10 from Pipelife 

  • 1.800 m DN500 
  • 4.985 m DN800 
  • 8.334 m DN1000 
  • 159 Manholes 5 River crossings 1 Railway crossing 3 Road crossings

Services provided:

  • General planning, detailed design
  • Soft loan financing application
  • Project management
  • Construction site supervision
    .

Why should young people work in the water sector?

The water sector offers many opportunities for professional development and promotes sustainable environmental awareness.

Why did you become an IAWD member?

ÖSTAP has the experience in the field of Water and Wastewater Technologies, Flood Protection, hydrodynamic modelling etc., and can provide many solutions for the Danube area. The IAWD is a great platform to get an overview where we could provide our services and to find out who our stakeholders/operators are as well as getting the possibility to be a part of future solutions.

*pictures provided by ÖSTAP International Water Consulting GmbH