Study of Risks in Rural Water Supply Systems of Khorramshahr Based on Water Safety Plan (WSP)

In this study, risk was identified and evaluated and control and corrective measures were determined in order to reduce or eliminate health and environmental hazards of rural water supply systems in Khorramshahr city according to the guidelines of the Water Safety Plan of the World Health Organization. This research is a descriptive cross-sectional study in which rural water supply systems in Khorramshahr were studied using the FMEA risk systematic method. The Risk Priority Number (RPN) was calculated to determine the risk level after identifying 14 risks using the opinions of experts. Then, control and corrective measures were put into consideration for medium, high and very high level risks. The results of the evaluation of 14 risks identified in the distribution network and point of consumption indicated that 71.5% were in the medium risk level and 28.5% were in the high (critical) risk level. After determining control and corrective measures, it reached 92.9% of risks in the medium (manageable) and 7.1% critical. This result indicates that water safety guidelines can replace traditional methods of inspection and process control and significant results can be achieved with the help of risk assessment by FMEA method and step-by-step implementation of WSP plan as an important evolutionary solution for preventive measures and reducing the level of existing risks.