The Braunschweig model, which utilises purified water in irrigation areas and uses the plants and micro-organisms in the infiltration fields for secondary purification, necessitates constant surveillance of the waste water disposal facilities. The laboratory for environmental analysis at the Steinhof treatment plant assumes this task. Quality control is ensured through internal measures and participation in trans-national inter-laboratory comparison tests.

Fields of activity

Analyses in urban areas

  • Own monitoring tests of the receiving waters utilised for rain water disposal in the urban areas of Braunschweig
  • Monitoring of industrial and business enterprises which feed their waste water into the municipal sewage system (indirect discharger monitoring)
  • Examination of ground water and ground for the City of Braunschweig during the surveying and redevelopment of contaminated land


Analyses for the Abwasserverband Braunschweig

  • Own monitoring tests in the area of waste water disposal for the treatment plant Steinhof, the infiltration fields and the irrigation areas
  • Examination of the sewage sludge accrued in the Steinhof treatment plant in regard to its suitability for agricultural re-usage
  • Examination of fatty acids for the process surveillance of biogas plants


In addition to these activities, services are also carried out for third parties.
However, the laboratory does not carry out tests on drinking water.

The laboratory is officially recognised as an investigating body for monitoring compliance with water and waste laws in accordance with §61a NWG and §44 NAbfG in Lower Saxony and accredited in accordance with DIN EN ISO/IEC 17025.