Res 2016-032/Water Reuse Asset Management Plan

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City of San Marcos Water Reuse System Asset Management Plan Figure 5.3 - San Marcos Reuse Facility Assets Relative Risk Profile 5.3 San Marcos Reuse System Pipeline Relative Risk Results A similar risk analysis was performed for the reuse system pipelines based on the risk matrix shown in Table 5.2 using a GIS -based risk analysis tool. The analysis computed the LOF, COF, and ROF scores for all 58 individual reuse pipeline segments. Table 5.4 summarizes the LOF, COF, ROF and Risk Rank for each reuse pipeline segment which is also illustrated in Figure 5.4. Table 5.4 presents the risk results in terms of total linear footage in the San Marcos system and Figure 5.5 provides a map of the reuse pipeline segments with their corresponding low risk (green), medium risk (yellow), and high risk (red) color designations. Most of the City's reuse pipeline assets fall into the medium or low risk categories. Five line segments on the Hays Energy reuse line were consider high risk based on Risk of Failure scores above 4.0. The higher risk scores on these line segments were caused by the relatively high Consequence of Failure (COF) scores for these particular line segments. While it is typically difficult to mitigate high COF scores, these assets may warrant more frequent monitoring and inspection to maintain their condition and avoid potential failure. February 2016 Page 29 Reuse System Relative Risk Profile 9 8 7 6 �u v ,R 5 LL ��Low Risk 0 W 4 Medium Risk c High Risk 3 r- 0 U 2 1 0 0 1 2 3 4 5 6 7 8 9 Likelihood of Failure Figure 5.3 - San Marcos Reuse Facility Assets Relative Risk Profile 5.3 San Marcos Reuse System Pipeline Relative Risk Results A similar risk analysis was performed for the reuse system pipelines based on the risk matrix shown in Table 5.2 using a GIS -based risk analysis tool. The analysis computed the LOF, COF, and ROF scores for all 58 individual reuse pipeline segments. Table 5.4 summarizes the LOF, COF, ROF and Risk Rank for each reuse pipeline segment which is also illustrated in Figure 5.4. Table 5.4 presents the risk results in terms of total linear footage in the San Marcos system and Figure 5.5 provides a map of the reuse pipeline segments with their corresponding low risk (green), medium risk (yellow), and high risk (red) color designations. Most of the City's reuse pipeline assets fall into the medium or low risk categories. Five line segments on the Hays Energy reuse line were consider high risk based on Risk of Failure scores above 4.0. The higher risk scores on these line segments were caused by the relatively high Consequence of Failure (COF) scores for these particular line segments. While it is typically difficult to mitigate high COF scores, these assets may warrant more frequent monitoring and inspection to maintain their condition and avoid potential failure. February 2016 Page 29