DOI 10.35776/MNP.2019.10.07
UDC 628:004.413.4

Grachev Vladimir, Kurysheva N. I., Plyamina O. V., Lobkovskiy V. A., NEFEDOVA E. D.

Algorithm for assessing the degree of physical deterioration
of structurally complex water supply and sanitation facilities
using a risk-oriented approach

Summary

The paper analyzes current regulatory documents and experience in the field of assessing the deterioration of structurally complex water supply and sanitation facilities. The paper shows that modern assessment procedures do not take into account any features of such objects. The paper identifies factors that affect the indicator framework for assessing the physical deterioration of the main groups and components of water supply and sanitation facilities. Based on these factors, the paper proposes an algorithm for assessing the physical deterioration of facilities using a risk-oriented approach for three levels: an object itself, its engineering components (facilities), and their functional elements (buildings, equipment). The paper indicates that the use of the algorithm would provide for developing recommendations for adjusting the frequency of monitoring indicators of the physical deterioration level of facilities of public water supply and sanitation systems and their elements. The implementation of the developed algorithm would contribute to the successful introduction of advanced approaches to managing risks associated with the level of physical deterioration and assessing the probability of potential negative consequences of natural, anthropogenic, and other origins. The introduction of the algorithm would also allow identifying vulnerable areas and taking preventive measures against the threat of violation of mandatory requirements including measures for reducing risks (technical and engineering renovation of buildings, facilities, equipment). This is required for objective and substantiated planning of overhaul, restoration, and development of water supply and sanitation facilities and their components.

Key words

water supply-sewerage services , risk-oriented approach , physical deterioration , integrity health , algorithm of assessment

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UDC 628.1.033:543.3

NEFEDOVA E. D., Hyamyalyainen M. M., Kovzharovskaia I. B., Shevchik G. V.

Risk-oriented approach to the arrangement  of drinking water quality control

Summary

Supplying the population with safe drinking water has been one of the priority tasks in the water supply sector. For many years the approach to the arrangement of the quality control of drinking water supplied to the population with the use of a public water supply system has not been changed and has been carried out in full compliance with the active for that time laws and regulations. In 2016 RF Government Decree of August 17, 2016 No. 806 «On using the risk-oriented approach in the arrangement of certain types of the state control (inspection)» was adopted that allowed the providers of water supply services to use the risk-oriented approach in the arrangement of the process control of drinking water quality with account of the population health risk. In accordance with the current legislation SUE «Vodokanal of St. Petersburg» has developed the «Program of the process control of the drinking water quality and safety in the city of Saint-Petersburg for the period of 2017–2022» with account of the risk-oriented approach in the arrangement of drinking water quality control that is currently implemented in the control and supervision by Rospotrebnadzor bodies.

Key words

water supply , control of potable water quality , health risk assessment , risk-oriented approach , integral estimation