Risk Analysis of Failure in Sewer Systems in Czech Municipalities
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Institute of Municipal Water Management, Faculty of Civil Engineering, Brno University of Technology, AdMaS Centre, Brno, Czech Republic
Department of Environmental Engineering, Faculty of Civil Engineering, Technical University of Košice, Košice, Slovakia
Martina Zeleňáková   

Technical University of Kosice, Vysokoskolska 4, 042 00 Kosice, Slovak Republic
Submission date: 2018-08-06
Final revision date: 2018-10-10
Acceptance date: 2018-10-21
Online publication date: 2019-09-09
Publication date: 2019-09-17
Pol. J. Environ. Stud. 2019;28(6):4183–4190
Our paper evaluates the technical condition of sewerage systems in the Czech Republic that are not properly operated and managed. These include municipalities that own the water infrastructure and operate the sewer network themselves. The selected assessed localities are municipalities of up to 1,000 inhabitants in the Czech Republic, which themselves operate sewerage systems aged 40-50 years. The aim of this paper is to compare and classify various defects in the sewerage systems joining risk analysis method and a proposed methodology corresponding to the applicable EN 13508-2 standard used to assess the condition of the sewerage systems and house connections. The evaluation and comparisons of the technical condition of the sewerage systems with the operating companies is the subject of this paper. Evaluation was done by multi-criteria analysis based on the risk analysis method: Failure Mode and Effects Analysis. The results of the assessment of the technical conditions classified into technical indicators of defects are unique in the Czech Republic and abroad.