Res 2024-045 approving the 2024 City of San Marcos Hazards Mitigation Action Plan (“HMAP”)

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SECTION 6- DROUGHT Drought is monitored nationwide by the National Drought Mitigation Center (NDMC). Indicators are used to describe broad scale drought conditions across the U.S. and correspond to the intensity of drought. Based on the historical occurrences for drought and the location of the City of San Marcos can anticipate a range of drought from abnormally dry to exceptional, or DO to D4, based on the Palmer Drought Category. The entire planning area has experienced exceptional drought conditions. These are the most extreme drought conditions the City can k anticipate in the future. 9' z The San Marcos Utilities Conservation Department monitors drought conditions and implements drought ' response stages during periods of higher -than -normal temperatures and lower than normal rainfall. The San Marcos City Code Chapter 86, Article 2 Division 2, Water Conservation lists the five drought response stages list and the conditions that occur to determine each stage. Each stage ends when conditions to implement are no longer applicable or when determined by the Director of Utilities Conservation Department. Table 6-4. City of San Marcos Drought Response Conditions3 Stage 1 shall be implemented when any one of the following conditions occur, or as otherwise determined by the director: 1. The ten-day average aquifer level is less than 660 feet above mean sea level as measured at the J-17 index well; or 2. The ten-day average discharge rate of San Marcos Springs is below 96 CFS as measured at the San Marcos gauging station; or 3. The ten-day average discharge rate of Comal Springs is below 225 CFS as measured at the Comal gauging station. Stage 2 shall be implemented when any one of the following conditions occur, or as otherwise determined by the director: 1. The ten-day average aquifer level is less than 650 feet above mean sea level as measured at the J-17 index well; or 2. The ten-day average discharge rate of San Marcos Springs is below 80 CFS as measured at the San Marcos gauging station; or 3. The ten-day average discharge rate of Comal Springs is below 200 CFS as measured at the Comal gauging station. Stage 3 shall be implemented when any one of the following conditions occur, or as otherwise determined by the director: 1. The ten-day average aquifer level is less than 640 feet above mean sea level as measured at the J-17 index well; or 3 Conservation & Drought I City of San Marcos, TX. (n.d.). https://www.sanmarcostx.gov/3704/Conservation-Drought City of San Marcos I Hazard Mitigation Action Plan Update 2024 1 Page 4