Emergency Action Plan for GAVI MARCH 2021
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Emergency Action Plan for GAVI MARCH 2021 Emergency Action Plan (Tier- I) Gavi Kerala State Electricity Board Ltd. DOC No. KSEBL_EAP_16_GAVI _R2 March 2021 i Emergency Action Plan for GAVI MARCH 2021 GAVI DISCLAIMER This is a Tier I EAP document prepared based on Dam Break Analysis carried out using the digital elevation model (DEM) derived from the Japan Aerospace Exploration Agency (JAXA) global digital surface model (DSM) dataset with a horizontal resolution of approximately 30meters (1 arc-sec). Every effort has been taken to estimate the severity of flooding and inundation areas likely to be affected by failure of diversion structure - Gavi. These estimates are based on available primary and secondary data. Every effort has been made to foresee varied emergency possibilities and develop appropriate notification procedures for timely rescue and relief operations. However, implementation of the Emergency Action Plan (EAP) involves many agencies, who are required to work in a coordinated manner to reduce the consequences of the emergency triggered by the dam site condition. Effectiveness of the rescue and relief operations depend on many factors including the adequacy and accuracy of the estimation of the severity of flooding, coordinated efforts of all the agencies involved in rescue and relief efforts and availability of facilities like power, telephones, road communications, etc. EAP Developer may therefore, not be held responsible for the efficacy of the EAP. For any information, please contact: Supriya S Chief Engineer (Civil – Dam Safety & DRIP) Kerala State Electricity Board Ltd. Dam Safety Organisation, Pallom Ph. +91 9496018719. Page 1 Emergency Action Plan for GAVI MARCH 2021 TABLE OF CONTENT 1. APPROVAL AND IMPLEMENTATION .................................................................................................. 5 2. EAP DISTRIBUTION LIST ..................................................................................................................... 7 3. LOG SHEET OF CHANGES ................................................................................................................... 9 4. PURPOSE .......................................................................................................................................... 10 5. DAM DESCRIPTION .......................................................................................................................... 11 5.1. General ........................................................................................................................................ 11 5.2 Gavi ............................................................................................................................................... 11 6. RESPONSIBILITIES ............................................................................................................................. 13 6.1 Dam Owner’s Responsibilities ...................................................................................................... 13 6.2 Dam Safety Organization’s Responsibilities ................................................................................. 17 6.3 Responsibilities for Notification ................................................................................................... 17 6.4 Responsibilities for Evacuation..................................................................................................... 19 6.5 Responsibilities for Termination and Follow-Up .......................................................................... 21 7. COMMUNICATIONS NETWORKS ...................................................................................................... 23 8. EMERGENCY DETECTION, EVALUATION, AND CLASSIFICATION ...................................................... 24 8.1. Emergency Detection .................................................................................................................. 24 8.1.1. Situations ................................................................................................................................ 24 8.1.2. Signs of Failure ........................................................................................................................ 24 8.2. Emergency Evaluation and Classification .................................................................................... 25 8.2.1 Internal Alert Condition ........................................................................................................... 25 8.2.2 External Alert Condition ........................................................................................................... 25 8.2.3 External Alert Conditions ......................................................................................................... 26 8.3. Previously Known Problems ........................................................................................................ 26 9. PREPAREDNESS ................................................................................................................................ 27 9.1 Surveillance .................................................................................................................................. 27 9.2. Response on forecast of excessive inflow ................................................................................... 27 9.3. Response during weekends and holidays ................................................................................... 27 9.4. Response during periods of darkness and adverse weather ...................................................... 27 9.5. Access to the site ......................................................................................................................... 27 9.6. Remedial Actions ......................................................................................................................... 28 10. SUPPLIES AND RESOURCES .............................................................................................................. 30 10.1. Contracts ................................................................................................................................... 30 10.2. Equipment and Supplies ............................................................................................................ 30 10.3. Reports ...................................................................................................................................... 30 11. EMERGENCY OPERATIONS CENTRE ................................................................................................. 31 11.1. Activity log ................................................................................................................................. 31 11.2. Costs of the Emergency Operations Centre .............................................................................. 31 12. INUNDATION AREA .......................................................................................................................... 32 Page 2 Emergency Action Plan for GAVI MARCH 2021 12.1 Inundation Maps ........................................................................................................................ 32 12.2 Inundated Areas ......................................................................................................................... 32 12.3. Local Evacuation Plan ................................................................................................................ 33 13. IMPLEMENTATION ........................................................................................................................... 35 13.1. Development ............................................................................................................................. 35 13.2. Updating .................................................................................................................................... 35 13.3. Testing ....................................................................................................................................... 35 13.4. Training ...................................................................................................................................... 36 Page 3 Emergency Action Plan for GAVI MARCH 2021 ANNEXURES ANNEXURE 1– DAM DESCRIPTION ........................................................................................................ 37 ANNEXURE 2 - VICINITY MAP ............................................................................................................... 39 ANNEXURE 3 – INUNDATION MAP (SEPARATE BOOKLET) ................................................................... 41 ANNEXURE 4 - ACTION DATA SHEET ..................................................................................................... 42 ANNEXURE 5 – WATCH NOTIFICATION FLOW CHART .......................................................................... 67 ANNEXURE 6 – FAILURE NOTIFICATION FLOW CHART ......................................................................... 69 ANNEXURE 7 - SAMPLE PUBLIC ANNOUNCEMENTS ............................................................................. 71 ANNEXURE 8 - SUPPLIES AND RESOURCES ........................................................................................... 73 ANNEXURE 9a – INUNDATION CUM EVACUATION MAP ...................................................................... 78 ANNEXURE 9b – FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN