Water producers risk analysis connected with collective water supply system functioning

Abstract

The paper presents threats to water producers related to the collective water supply systems (CWSS) functioning which is the background for safety assessment based on risk analysis. Risk is commonly used as a measure of systems safety. Risk analysis takes into account probability of adverse events occurrence, effects of these events and vulnerability to dangerous situations. The developed method is based on calculating an expected value of losses incurred by water company as a result of adverse events and calculating an expected value of water company financial profit. Its innovative character is to use incomplete or uncertain database. Water company profitability is one of the basic conditions for CWSS continued functioning. The developed methodology is presented on the application example for the county town in south-eastern Poland.