Risk Assessment of Water Intakes in South-Eastern Poland in Relation to the who requirements for Water Safety Plans
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| 3. Results
In accordance with the Water Law [ 8 ], which regulates the intake protection zones in Poland, a protection zone that includes an area of direct protection and an area of indirect protection is based on a risk analysis that includes an assessment of the health hazards resulting from the way the land is development, hydrological documentation analysis and the results of water quality analysis. This approach is in line with the requirements of Drinking Water Directive 2020/2184 [ 14 ] and the requirements of the WHO [ 25 ] on risk assessment in water supply systems. A risk analysis was performed for four water intakes in selected cities located in south-eastern Poland. After a detailed identification of the risks to the water quality of the rivers, the existing safety measures that protect consumers from consuming water of inadequate quality were identified. The existing safety measures were also validated. The purpose was to confirm the effectiveness of these measures in normal and crisis conditions. The effectiveness of the safety measures reduces the risk value. Missing safety measures were also indicated, i.e., safety measures that should function in the system but had not been implemented so far. Table 1 shows the results of the risk analysis performed. The obtained results are from studies prepared by the authors. They were commissioned by the water companies managing intakes A, B, C and D. Each event is described by three parameters: “probability”, “consequences“ and “protection”, and based on determined parameters of the risk. Figure 2 and Table 5 show the obtained risk values broken down by the type of undesirable event. The method of determining the risk value is presented in the examples below. Resources 2021, 10, x FOR PEER REVIEW 10 of 17 tải về 1.26 Mb. Chia sẻ với bạn bè của bạn:
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