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.
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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
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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
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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 ...... 85 ANNEXURE 10 - ANNUAL EAP EVALUATION CHECKLIST ...... 87 ANNEXURE 11 - PLAN REVIEW AND UPDATE ...... 89 ANNEXURE 12 - TRAINING RECORD ...... 91 ANNEXURE 13 - STAKEHOLDERS’ MEETING ...... 93
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1. APPROVAL AND IMPLEMENTATION
#This Emergency Action Plan has been prepared by Kerala State Electricity Board Limited (KSEBL) in collaboration with Central Project Management Unit (CPMU), Central Water Commission (CWC), Government of India. This document is hereby approved and is effective immediately and supersedes all previous editions.
N S Pillai, Chairman & Managing Director, KSEBL Date
I have received a copy of this Emergency Action Plan and concur with the notification procedures.
Supriya S, Chief Engineer (Civil – Dam safety & DRIP) Date
Preetha R., Deputy Chief Engineer Date Research & Dam Safety Organisation, Pallom
District Disaster Management Authority, Pathanamthitta Date
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State Disaster Management Authority Date
Sate Dam Safety Organization Date
District Police Chief, Pathanamthitta Date
# The document is reviewed by CPMU and accorded concurrence
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2. EAP DISTRIBUTION LIST
A copy of the EAP has been provided to the following people:
Authority Name, Title, Phone Acceptance Signature Dam Operator / Site Officials Aji T Assistant Engineer, Pamba Mob : 9496011952 Sreekumar M B Assistant Executive Engineer, Pamba Mob: 9496011966 Emergency Planning Manager PrasannaKumar R. Executive Engineer Mob : 9446008424 Email : [email protected] KSEBL Preetha R, Deputy Chief Engineer R&DSO, Pallom Mob : 9446008492 Supriya S, Chief Engineer (Civil – Dam Safety & DRIP) Mob : 9496018719 State Dam Safety Organization Biju D Chief Engineer, Investigation & Design (IDRB) Kerala Water Resources Department 0471-2306159 Central Dam Safety Gulsan Raj Organization Chief Engineer, CWC, New Delhi Ph : 9999277474 Ph : 011 - 26106848 Pramod Narayan Director, Dam Safety & Rehabilitation, CWC Ph : 9958975921 Ph: 011 - 29583480 District Disaster Management NARASIMHUGARI T L REDDY IAS
Authority, Pathanamthitta Phone : 0468-2222505 Mob :9447029008 District Collector Pathanamthitta Police Department, R NISHANTHINI IPS
Pathanamthitta District Police Chief Phone :04862222636 Mob : 9497996983
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Kerala Sate Disaster Sekhar L Kuriakose Management Authority Vikas Bhavan, Thiruvananthapuram Ph: +91 471 2331345 Mob : 9497996982 Tehsildar, Konni Taluk Ph : 0468 – 2240087 8547618430
Downstream Dam Owner Asst. Exe. Engineer Perumthenaruvi Perumthenaruvi 9496018371
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3. LOG SHEET OF CHANGES
The following changes have been made to the EAP and revisions have been provided to the people shown on the EAP Distribution List.
Date Change Made Signature
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4. PURPOSE
The purpose of this Emergency Action Plan (EAP) is to identify emergency situations that could threaten the diversion structure - Gavi of Sabarigiri Hydro Electric Project and to plan for an expedited, effective response to prevent failure of the dam and warn downstream residents of impending danger. This plan defines the notification procedures to be followed in the event of a potentially hazardous situation. The procedures are intended to protect lives and prevent property damage an uncontrolled outflow of water from the breached portion of dam.
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5. DAM DESCRIPTION 5.1. General Gavi is a diversion structure constructed across a stream flowing adjacent to Pamba reservoir which augment the inflow to Pamba. The water from Gavi is diverted to Pamba reservoir routing through Meenar-I & II ponds. This structure is in Pathanamthitta District. Description of structures, its spillways, and other features are outlined in the Dam Description in Annexure - 1. General lay out of the diversion structures is shown below;
5.2 Gavi Gavi is a diversion structure constructed across a small stream located in the southern side of Meenar-I flowing adjacent to Pamba reservoir and joins with Pamba river downstream of Pamba dam. The location of structure is at latitude 90 26’28”and longitude 770 09’36”. 5.2.1 Reservoir Operation Gavi receives the diverted flow from Kullar and divert it to Meenar I. FRL is 1136.90 m. Water is diverted through a tunnel of length about 2.3 km. Controlling arrangements are not provided at intake.
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Gavi A vicinity map showing the location of the diversion structures is presented in Annexure - 2. Inundation maps showing the areas subject to flooding as a result of failure of diversion structure Gavi as shown in Annexure - 3 and is provided as separate drawing volume in A3 format. Blue Alert will be declared when there is a; Forecast of heavy rain by IMD; High intensity rainfall in the catchment area of reservoir; large inflow to reservoir; Water level in the pond increases at a rapid rate. Orange Alert will be declared when there is a; Large inflow to reservoir & Water level is one (1) meter below Top of Dam. Red Alert will be declared when there is a; Large inflow to reservoir and Water level crosses Top of Dam.
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6. RESPONSIBILITIES 6.1 Dam Owner’s Responsibilities Dam owner’s responsibilities before and during an Emergency event is tabulated below;
Table 6.1.1 Dam owner’s Responsibilities.
Sl. Dam Emergency Personnel Responsibility No.
1 Emergency Planning Manager Preparedness Responsibilities - Coordinate routine inspections and Dams’ Executive Engineer operations. Dam Safety Division - Ensure effective transmission of hydro- Kakkad metrological and stream flow data through different means. - Ensure proper accessibility to all vulnerable points for constant monitoring during emergency situations. - Identify primary and secondary communication systems, both internal (between persons at the dam) and external (between dam personnel and outside entities). - Provide security measures at the dam (CCTV surveillance, security guards, fencing). - Ensure the availability of adequate staff at dam site during holidays, nights and round the clock in weekdays. - Ensure that the EAP is functional and staffs are familiar with their responsibilities. - Ensure that a signboard is installed and clearly visual in different locations at dam site and operation room, with the most common evidence of distress and corresponding levels of alert and remedial actions. - Ensure all the equipment/means at dam site to response to an emergency are easily accessible and well maintained (generators, vehicles, lanterns, radios, heavy equipment, etc.) - Ensure the installation and proper maintenance of a warning system (sirens, horns) in the critical areas within the
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floodplain (less than 2 hours of wave arrival time) - Ensure the current approved version of the EAP is available to all relevant stakeholders (those who have a functional role in the emergency response) - Ensure all necessary means to manage the emergency response are available and operative in the Emergency Operation Center. - Participate in exercises for test/improvement of this EAP. Emergency Responsibilities - Ensure a continuous and reliable communication with dam site officers. - Receive and assess any distress condition as notified by site engineers, observer or regular inspection. - Classify the incident/distress condition reported by the observer into the different Emergency Levels (Blue, Orange, Red) based on Annexure 4 (Emergency Level Determination/Action Sheets) and Annexure 3 (Inundation Maps). - Initiate/implement the Emergency Action Plan and Emergency Operation center if it is deemed necessary. - Identify the area that would be potentially impacted by the emergency events - Provide updates of the situation to the District(s) Disaster Management Authority to assist them in making timely and accurate decisions regarding warning and evacuations. - Propagate the emergency information to other relevant stakeholders - Support the communication needs of local emergency authority 2 Dam Site Engineers Preparedness Responsibilities
Asst. Executive Engineer - Monitor and surveillance of dam and Dam Safety Sub Division appurtenant structures looking for Pamba evidence of distress mentioned in Annexure 4. - Conduct Pro and Pod monsoon Inspections
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Assistant Engineer under the direction of the emergency Dam Safety Section Planning Manager Pamba - Inform the Emergency Planning Manager
about any irregular/unusual condition at dam site and keep him/her posted about any progression/change - Operate dam’s gates/under sluices, under the express direction of Chief Engineer/Deputy Chief Engineer/Executive Engineer - Conduct routine dam maintenance - Collect instrumentation measurements - Ensure effective working conditions of the warning system (Sirens) - Participate in exercises for test/improvement of this EAP
Emergency Responsibilities - Monitor the emergency event at dam site and keep posted the Emergency Planning Manager about any change in the development - Contact the suppliers/contractors - Supervise the work of the labor contractors and machineries engaged in the site for rehabilitation/remedial works
- Conduct the remedial actions as per Action
Data Sheets (Annexure 4) 3 Deputy Chief Engineer Preparedness Responsibilities: R&DSO and DRIP - Ensure an annual review of the EAP. Pallom - Coordinate the annual / regular testing events of the EAP, such as tabletop exercises, mock drills, stake holder’s consultation. - Coordinate training events in problem detection, evaluation and appropriate corrective measures - Supervise the functioning of control room and ensure to be well equipped with all type of information to facilitate the rescue and relief operations - Ensure proper access to site at the earliest possible.
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- Ensure that all related machinery/equipment are in running conditions and can be deployed as per requirement at emergency site.
During Emergency Responsibilities: - Provide decision support and technical support to Emergency Planning Manager as appropriate. - Have a constant liaison with Indian Meteorological Department (IMD) during emergency periods related with flood events. - Advise the Emergency Planning Manager of the emergency level determination, if time permits. - Disseminate information and make contact to utilize media as appropriate at the time of emergency on behalf of Chief Engineer, Dam Safety & DRIP, Dam safety Organisation, Pallom. 4 Chief Engineer (Civil – Dam Preparedness Responsibilities: Safety & DRIP) - Assist the Dam Owner’s officers in Dam safety Organisation, preparation of Action Data Sheets Pallom. (Annexure 4) - Recommend specific actions in order to improve the readiness of emergency actions - Support and Monitor the remedial construction activities such as earth moving, especial investigations, etc. - Decide depending upon the quantum of repair/reconstruction work, whether the work is to be got executed through large construction firms or purely through the department or small contractors. - Undertake an engineering assessment of the safety hazard at the dam in collaboration with the Kerala Dam Safety Authority (DSO) Emergency Responsibilities:
- Advice the dam’s Emergency Planning
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Manager/Deputy Chief Engineer with the emergency level determination, if time permits. - Advice the dam’s Emergency Planning Manager/ Deputy Chief Engineer with remedial actions to take if Blue/ Orange events occurs, and if time permits. - Direct specific and appropriate procedures to open/close the spillway’s gates during the reservoir operation. - Play the role of “Public Affair’s Officer” in case external/public notifications should be released. - Keep close watch on the different activities being carried out by different agencies at the time of emergency.
6.2 Dam Safety Organization’s Responsibilities
The following are the basic emergency planning & response roles and responsibilities for the Dam Safety Organization (State and National level); • undertaking an engineering assessment of the safety hazard at the dam. • advise the Dam Owner/Emergency Planning Manager of remedial actions to be taken if an event occur. • advise the Dam Owner/Emergency Planning Manager of the emergency level determination. • responsible for reviewing and accepting the Emergency Action Plan, before its final publication. support for the preparation of asset management plans, emergency preparedness plans, emergency warning systems, flood plain mapping, preparation of flood inundation maps focus on legal, regulatory and technical frameworks for dam safety assurance participate/conduct a stake holder’s meeting before finalization of the Emergency Action Plan 6.3 Responsibilities for Notification After an event level has been determined appropriate notifications should be made in accordance with the corresponding notification Flow Chart provided in this EAP (Annexure 5 & 6) These Notification Flowcharts list the names and contact information and identifies who is to be notified of a dam safety incident, by whom, and in what order. Alternate contacts and their confirmed telephone number is also listed, in case primary contact is
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Emergency Action Plan for GAVI MARCH 2021 unavailable. Each official listed in the notification flowcharts should be familiar with it and immediately notify the Emergency Planning Manager in case of cessation of his/her functions within the organization. Responsibilities of officials for notification are tabulated as Table 6.3.1. Table 6.3.1 Responsibilities for Notification Designation of Officials Responsibilities (During Preparedness and Emergency Events)
Executive Engineer - Notify the District Disaster Management authorities Dam Safety Division (District Collector) in case of Orange/Red alert Kakkad - Notify the District Authorities about any emergency (Emergency Planning response actions at dam site and their impacts in the Manager) downstream area (e.g. large releases) - Assist the District Collectors/relief Authorities involved in the emergency response actions with information about condition at dam site - Where the residences located immediately downstream of a dam that would be inundated within minutes of a dam failure, wherein the available warning time is very limited, in that cases, Emergency Planning Manager will arrange to notify the residences directly without waiting for the local administration to act upon before an emergency situation develops.
Dam Site Engineers - Keep inform the Emergency Planning Manager about (Asst. Executive the progress of the situation at dam site Engineer, Assistant Engineers)
Deputy Chief Engineer, - Notify /inform higher authorities on the mishap as per R&DSO, Pallom / notification flow chart of particular alert level as per situation at site. Chief Engineer (Civil – - Dam Safety & DRIP) Notify/inform media representatives about the emergency situation.
- Define emergency situations for which each medium will be utilized and include an example of a news release that would be the most effective for each possible emergency, avoiding disseminate false/overstated messages among the population.
District Collector(s)/ - Implement the Notification Flow chart for regional and District Disaster State Disaster Management Contacts Management Authority - Contact Local Law Enforcement Authorities and Relief Authorities under their jurisdiction - Liaising and coordinating with Early Warning Agencies like IMD, CWC, INCOIS, etc. for disaster specific information and disseminating the information for
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coordinating with the State Govt, and facilitating the deployment of NDRF in the disaster affected districts during disaster - Issue public announcements in coordination with Dam Owner’s officials and media representatives about the status of the emergency event
Relief Authorities - Notify downstream residents in vulnerable areas. (Police Department, - Provide to the District Disaster Management Authority Civil Defense, Army precise and accurate feedback information about the Forces) progress of relief actions and advise when the emergency can be terminated. - Notify to their corresponding command the necessity to deploy more resources to attend the rescue and relief actions.
Media Representatives - Disseminate wide public awareness during emergency condition of Dam through Social Media Platform such as Facebook, Twitter, Whatsapp & Instagram. - The news media, including radio, television and newspapers, should be utilized to the extent available and appropriate. - Pre-plan in coordination with Chief Engineer/Deputy Chief Engineer the most effective way to disseminate the most delicate and common emergency situations among the population. Pre-defined news shall be available in order to improve readiness of the decision- making process.
6.4 Responsibilities for Evacuation Evacuation and relief actions are exclusive responsibilities of Districts Authorities, and Emergency Relief Forces at Local and State Level. Part of Pathanamthitta district would be affected by a potential failure/emergency event at the dam site, and therefore, each district’s representative is responsible for evacuation/relief actions in their jurisdiction.
District Collector(s) acting as District’s Disaster Management Authority is responsible to coordinate actions along with the following specialized teams/forces: - Police and Fire Departments - National Disaster Management Authority (Response Force) - Civil Defense - Army/ Navy/Air Forces. Responsibilities of Various Authorities for evacuation in case of potential failure/ Emergency event are tabulated below;
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Table 6.4.1 Responsibilities for Evacuation
Authorities Responsibilities District Collector UNDER BLUE ALERT (Preparedness) (Pathanamthitta) - Participate in review, updates and exercises of the acting as District’s Disaster EAP. Management Authority - Dissemination among the population and making them aware about their own risk. - Conduct training/education programs among the population in regard, how to act before, during and after emergency events such as flash floods. UNDER ORANGE ALERT - Prepare emergency response personnel for possible evacuations that may be needed if a RED alert is declared. - Provide resources as necessary to the dam owners. - Serve as the primary contact responsible for coordination of all emergency actions for potentially affected communities. - Consider drafting a State of Local Emergency in preparation for RED alert. - Maintain close liaison with the district and the State Governments as well as the nearest units of Armed Forces/Central police organizations and other relevant Central Government organizations like Ministries of Communications, Water Resources, Health, Drinking Water, Surface Transport, who could supplement the efforts of the district administration in the rescue and relief operations. - Decide in coordination with the Emergency Planning Manager when to terminate the Emergency. UNDER RED ALERT - Initiate warnings and order evacuation of people under vulnerable areas as per inundation maps (Annexure 3) - Direct local emergency response services (may include local law enforcement) to carry out the evacuation of people and close roads/crossings within the evacuation area [see local Evacuation Plan (Section 12.1) & Annexure 3 ] - Declare a State of Local Emergency if required. - Provide resources as necessary to the Dam Owner. - Decide in coordination with the Emergency Planning Manager when to terminate the Emergency.
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Police Department - Warn the public under vulnerable areas in their (Pathanamthitta) jurisdiction as per inundation maps (Annexure 3).
- Secure and control access to evacuated areas.
- Install barricades in the affected bridges and crossings as per Tables under Section 12.2.2 and Inundation cum Evacuation Plan 9a. - Assist in conducting rescue and recovery operation as required. - Ensure proper access to the emergency services. - Prioritize the vehicle movement to the emergency site. - Control the traffic and divert through alternative routes. - Ensure no unauthorized persons entering into the emergency site. - Permit with minimum delay the entry of authorized personnel and recognized outside agencies, vehicles etc. involved in the emergency operations that come to help. - Any other responsibility as entrusted by the high officers. Fire Department(s), - Assist in evacuation operations and initiate the Army & Navy Forces. evacuation of impact areas in cooperation with Emergency Management Agency and Police Department. - Request mutual aid for boats and initiate rescue of trapped residents as needed. - Supply special equipment/teams to support rescue operations (e.g. Helicopters, divers, off-road and amphibious vehicles).
6.5 Responsibilities for Termination and Follow-Up Once EAP operations have begun under BLUE, ORANGE or RED alerts levels, the EAP operations must eventually be terminated and follow-up procedures completed. EAP operations can only be terminated after completing operations under RED or BLUE alert levels. If ORANGE Event Level is declared, the operations must be designated RED Event Level or BLUE before terminating the EAP operations. Please check the Action data Sheets (Annexure 4) for further details in when to declare an emergency event terminated. Table 6.5.1 below shows the main responsibilities in the termination and follow-up process.
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Table 6.5.1 Termination and Follow-up Responsibilities
Officer Designation Responsibilities (During Preparedness and Emergency Events)
Executive Engineer - Declare the termination of the emergency operations in (Emergency Planning coordination with District Disaster Management Manager) Authority and Relief/Response Forces.
- Conduct a review process of the EAP procedures. - Identify EAP procedures that were followed effectively, as well as any ways that the EAP could be improved. - Identify the causes that could have triggered the emergency event and propose actions to improve readiness and early detection. Support from the Dam Safety Organization may be requested in this regard - For Major Emergencies, the Emergency Planning manager will maintain detailed records of cost expended and will prepare a detailed report in this regard. (See Section 10.3 “Reports”)
Deputy Chief Engineer - Ensure that all parties that participated in the EAP R&DSO and DRIP activities are involved in the review process. Pallom / Chief Engineer (Civil – Dam - Impose a time frame within which the EAP review is to Safety & DRIP) be completed. - Propose any ways that the EAP could be improved.
- Present the final results of the EAP evaluation in a documented report to the Chairman Kerala State Electricity Board Ltd. - Ensure that there is no danger of spread of any epidemics or water borne diseases after the floods. - Identify in coordination with the Emergency planning Manager the causes that could have triggered the emergency event and propose actions to improve readiness and early detection. A report should be presented to the dam owner’s authorities in this regard.
Disaster Management - Declare the termination of the emergency operations in Authority coordination with Emergency Planning Manager and (State & District) Relief/Response Forces. - Identify EAP procedures that were followed effectively, as well as any ways that the EAP could be improved.
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7. COMMUNICATIONS NETWORKS
Every monsoon, Executive Engineer, Dam Safety Division, Kakkad in coordination with Kerala State Police Department, will set up temporary wireless communication network at Dam monitoring office near the premises of Pamba and Kakki dams with the central station at Office of Executive Engineer, Dam Safety Division, Kakkad. Local officials and downstream residents will be notified by landline telephone, if available; otherwise via cell phones or emergency personnel (in person or using their radios). The various networks for emergency use include the networks of the following: - Central Station, Kakkad - Indian Meteorological Department. - Central Water Commission - District Collectorate, Police and Fire Departments (Pathanamthitta) - Kerala State Disaster Management Authority - Army/Navy / Air Forces Sample public announcements appear in Annexure 7 and internal suggested phone messages are also available in each notification flow chart. Verification or authentication of the situation can be made by contacting the Emergency Planning Manager and the corresponding district disaster management officials (Pathanamthitta). Television, Radio and bulk SMS facilities of the local Mobile Network Operators can be used as much as possible to notify area residents of the possible dangers.
As per notification responsibilities (Section 6.3), public announcements are to be issued by the concerned District Disaster Management officials and the Executive Engineer, Dam Safety Division, Kakkad in coordination with media representatives.
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8. EMERGENCY DETECTION, EVALUATION, AND CLASSIFICATION
8.1. Emergency Detection
8.1.1. Situations Many dam conditions can lead to emergency situations, not all of which will require the implementation of the EAP. However, if any of them occur, the appropriate actions must be taken. Annexure 4 of this EAP shows the most common emergency situations that may emerge in the diversion structure Gavi and their appurtenances, of the Sabarigiri Hydro Electric Project, along with the corresponding specific actions to be done by each of the dam‘s officials. Some of these emergency situations are summarized as follows: - Severe Storms/Inclement Weather: Although generally not in themselves a threat to the dam, severe storms and other inclement weather conditions can contribute to an existing problem and hinder any remediation efforts. Severe storms also cause the uncontrolled release of floodwater, and increase flow in already rain-swollen areas.
- Tropical cyclones: Tropical cyclones do occur in the area, with the potential for structural damage to the dam, possibly resulting in its failure. If a tropical cyclone has struck in the area, an inspection of the dam for any signs of damage will be appropriate.
- Earthquakes: The diversion structure Gavi is located in the Seismic Zone Number III. Therefore, an earthquake is a possibility, and appropriate post-earthquake inspections should be performed.
- Sabotage: Appropriate actions must be taken to protect the dam in case of any attempt for sabotage has been made. 8.1.2. Signs of Failure Dam Site Engineers in coordination with the Executive Engineer (Dam Safety Division, Kakkad) are responsible for conducting routine inspections and identifying conditions that could indicate the onset of problems leading to a dam failure. The early identification of potentially dangerous conditions can allow time for the implementation of the EAP. The following sections describe some of the different types of failure which could lead to a dam failure.
- Seepage Failure: Piping can occur for years at a slow rate. If the piping has progressed to a dangerous level, it will be evident by increased flow or the discharge of muddy water (or both). At that stage, immediate action to stop the piping is needed. Fully developed piping is difficult to control and is very likely to result in failure. A whirlpool in the reservoir is a sign of uncontrollable piping and necessitates immediate emergency action. - Foundation Sliding: Sliding is usually first apparent when cracks or bulges appears. Slides with progressive movement can cause failure of the structure.
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- Structural Failure: The structural failure or collapse of any non-overflow portion of the dam, could result in loss of the reservoir. A structural failure of a portion of the spillway could cause piping and possibly embankment failure. - Overtopping Failure: Overtopping of the embankment results in erosion of the dam crest. Once erosion begins, it is very difficult to stop.
8.2. Emergency Evaluation and Classification
This section lists the conditions and actions which may be used to classify the level of emergency response, as a guide for the Emergency Planning Manager. Specific dam observations and corresponding emergency classification levels can be found in Annexure 4, along with appropriate and recommended actions to follow in each case.
8.2.1 Internal Alert Condition
BLUE – ‘Watch condition’. A problem has been detected at the dam that requires constant monitoring. At this time, the distress condition is manageable by dam personnel. The Emergency Planning Manager along with the support of site engineers will be responsible for monitoring and repair as soon as possible and implementing the appropriate Notification Flowchart. The following is a list of conditions that would initiate this condition:
- Cloudy or dirty seepage or seepage with an increase in flow, boils, piping, or bogs - Large sinkholes with corresponding seepage anywhere on the embankment or downstream from the toe. - Any slide that degrades the crest of the embankment or that is progressively increasing in size. - Cracking or movement of any concrete structure. - An increase in the reservoir level leading to engagement of the emergency spillway. - Exceptionally heavy rainfall in the catchment of the dam reservoir. 8.2.2 External Alert Condition
ORANGE – This is indicative of a dam condition that is progressively getting worse; and there is a high probability of dam failure. Although there is no immediate danger, the dam could fail if conditions continue to deteriorate. The Emergency Planning Manager will be responsible for initiating immediate repairs, including lowering the reservoir if appropriate and implementing the appropriate Notification Flowchart. The following is a list of conditions that would initiate this condition: - Large boils, increasing in size and flow rate, especially if there is flowing muddy water - Significantly increasing seepage, especially flowing muddy water - Slides involving a large mass of material that impairs the crest of the dam and is continuing to move
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- Sinkholes with seepage flowing muddy water - Large cracks, movement or failure of a portion of any major concrete structure that forms an integral part of the dam - An increase in the reservoir level to near the top of the dam - Overtopping of a dam that is not designed for overtopping - Near to ‘Design Flood’ inflow forecast. 8.2.3 External Alert Conditions
RED – These are ‘Failure’ conditions. Either the dam is in immediate danger of failing or has already failed. No time remains to implement measures to prevent failure. Evacuate immediately. Evacuation efforts will continue until the situation is stabilized. The Emergency Planning Manager is responsible for implementing the appropriate Notification Flowchart. The following is a list of conditions that would initiate imminent dam failure or dam failure conditions: - Rapidly increasing boils or the presence of new, significantly flowing boils, particularly muddy ones near previously identified ones - Rapidly increasing seepage, especially flowing muddy water - Slides involving a large mass of material or which have degraded the crest of the embankment to a level that approaches the water surface level, or if significant seepage is observed through the slide area - Settlement that is predicted to degrade to the reservoir level - Cracks that extend to the reservoir level - Significant movement or failure of any structure that forms an integral part of the dam - Uncontrollable release of the reservoir 8.3. Previously Known Problems Operation manual of this dam is to be updated. Water level indicators are to be installed. Dam instrumentation is to be revived.
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9. PREPAREDNESS
Preparedness actions are to be taken both before and following the development of emergency conditions and should identify ways of preparing for an emergency, increasing response readiness in a uniform and coordinated manner, and helping to reduce the effects of a dam failure. The following are some steps that could prevent or delay failure after an emergency is first discovered. 9.1 Surveillance Round the clock surveillance at the dam and its appurtenant (on the rim of reservoir (left & right)) will be carried out by site engineers during emergency situations. For this, the posting of special observer of high experience and keen observation is an important requirement of EAP during high flood period. To ensure that the whole system (including civil structures & mechanical installations) is being maintained well up to satisfactory level, the repair maintenance must be carried out as per requirement of O & M. In addition, it must be ensured that maintenance and upkeep of different components is carried out and will be only possible through deployment of well procedure conversant and trained staff. The list of such persons should be displayed on a photo frame mounting at convenient safe places at dam site and list of local telephone numbers inside the dam & outside the dam area by the Dam Site Officials and it shall be updated from time to time. 9.2. Response on forecast of excessive inflow The diversion structures Gavi are in a tributary of Pamba basin. Rain gage stations are established by the KSEBL in Pamba basin. Data from the stations are collected on daily basis by the Dam Site Officials. These data are used for reservoir operation and flood forecasting. 9.3. Response during weekends and holidays
Emergency Planning Manager will be available for emergency response during weekends and holidays. In case of non-availability of the Executive Engineer, the Assistant Executive Engineer (Dam Safety Sub-division, Pamba) will take his responsibilities. 9.4. Response during periods of darkness and adverse weather
Emergency Planning Manager and Site Engineers will arrange for access to generators and lights to adequately monitor the situation. Site Engineers will ensure the generators and emergency lights are well maintained and available under any circumstances. Executive Engineer will be able to access the site during adverse weather conditions by off road vehicle. 9.5. Access to the site The following accesses to the dam are available, and depending of the emergency situation some of them should be used with caution or totally avoided (See Table 9.5.1 and Inundation cum Evacuation Map as per Annexure 9a).
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Table 9.5.1. Condition of access to Dams under Emergency Conditions ( Failure of Dams)
Emergency From Access description Approx. distance condition-Dam failure Vandiperiyar To Gavi via. Vandiperiyar - Gavi 26 km Safe Road Seethathode To Gavir via. Seethathode - Gavi 60 km Safe Road
9.6. Remedial Actions Preparedness and remedial actions can be taken in an emergency to prevent the catastrophic failure of the dam, but such repairs should be undertaken with extreme caution. The repairs are only temporary, and a permanent repair should be designed by an engineer as soon as possible. Specific actions for different emergency situations are described in the Annexure 4 (Action Data Sheets). Examples of the actions to be taken for dam‘s officials under the direction of a professional engineer or contractor are described below. In all cases, the appropriate Notification Flowchart must be implemented. Consider the following remedial actions if the dam‘s integrity is threatened by: Seepage Failure - Plug the flow with whatever material is available (hay, bentonite, or plastic) if the entrance is in the reservoir. - Lower the water level in the reservoir by using the low flow outlet and pumping if necessary, until the flow decreases to a non-erosive velocity or until it stops. Place an inverted filter (a protective layer of sand and gravel) on the exit area to hold the material in place. - Continue operating at a lower level until a repair is made. Embankment or Foundation Sliding - Lower the water level in the reservoir by using the low flow outlet and pumping if necessary, at a rate and to an elevation considered safe, given the slide condition. - Stabilize the slide, if on the downstream slope, by weighting the toe area below the slide with soil, rock, or gravel. - Continue operating at a lower level until a repair is made.
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Structural Failure - Implement temporary measures to protect the damaged structure, such as placing rock riprap in the damaged area. - Lower the water level to a safe elevation through the low flow outlet and by pumping if necessary.
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10. SUPPLIES AND RESOURCES
10.1. Contracts
If the project personnel of the diversion structures (Gavi) and resources prove to be inadequate during an emergency, requests will be made for assistance from other local jurisdictions, other agencies, and industry, as needed. Such assistance may include equipment, supplies, or personnel. All agreements will be entered into by the following authorized officials, as deemed necessary to prevent the failure of the dam:
- Emergency Planning Manager. - Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam. - Chief Engineer, Dam Safety and DRIP, Dam Safety Organization, Kottayam.
10.2. Equipment and Supplies
Equipment that is available for use and local contractors that can be contacted to provide equipment during an emergency event are listed in Annexure 8.
10.3. Reports
Pre-monsoon and post-monsoon inspections of the dam are made every year by the Site Engineers in coordination with the Emergency Planning Manager to evaluate its structural safety, stability, and operational adequacy. In the event of an abnormal occurrence, reference to these reports, particularly the photographs, can be beneficial in the evaluation of a potential problem. Pre-monsoon inspections will be carried out generally in the month of May and Post-monsoon inspection during December.
Technical records such as drawings and inspection reports are stored and carefully maintained at the Control Room in dam site and in the Emergency Planning Manager’s Office. Site Engineers shall be familiar with the location of the documents in the event of an emergency situation.
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11. EMERGENCY OPERATIONS CENTRE 11.1. Activity log Any unusual or emergency condition should be documented, including the following: - Activation or deactivation of emergency facilities - Emergency notifications to other local governments and to state and central government agencies - Significant changes in the emergency - Major commitments of resources or requests for additional resources from external sources - Telephone calls will be recorded in chronological order - Issuance of protective action recommendations to the public - Evacuations and casualties - Termination of the incident 11.2. Costs of the Emergency Operations Centre For major emergencies, the emergency operations center will maintain detailed records of costs expended. These records may be used to recover costs from the responsible party or insurers, or as a basis for requesting financial assistance for certain allowable response and recovery costs from the state or central government. Documented costs should include: - Personnel costs, especially overtime - Equipment operation - Equipment leasing and rental - Contract services to support emergency operations - Specialized supplies expended in emergency operations
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12. INUNDATION AREA 12.1 Inundation Maps The inundation map (Annexure 3) illustrates the areas subject to flooding from failure of diversion structure and is attached as separate drawing volume in A3 format. The maps were prepared using the results of a two-dimensional flow analysis considering cases of Overtopping failure and depict the areas likely to be inundated as well as the flood arrival time from the beginning of the breach to the moment the location start to be inundated. Table 12.1 shows various scenarios included in the Emergency Action Plan
Table 12.1- Scenarios included in the Emergency Action Plan
Annexure Scenario Hazard Parameters Number Index of Tiles
Annexure 3
3 Overtopping Failure Depth, Arrival Time, Velocity, Water (5 x 8 surface Elevation (WSE), Vulnerability (5 each) Nos.)
12.2 Inundated Areas The potential consequences due to a breach scenario of diversion structure gavi will affect upstream reaches of the basin in Pathanamthitta district in part. The part of Panchayat which is likely to be affected is listed in the Table 12.2.1 below.
Table 12.2.1 Affected Panchayats within the Inundation area (Failure Scenario)
District Panchayat Tile ID No. in Inundation cum Evacuation Map (Annexure 9a)
Seethathode 1/6, 2/6, 3/6
Pathanamthitta Chittar 3/6,4/6,5/6
Vechoochira 5/6,6/6
It is also determined that the area likely to be inundated consequent to hypothetical failure falls within the deep forest. In addition to this part of Panchayats Seethathode, Chittar & Vechoochira will get inundated. The bridge and part of road, likely to be submerged due to failure scenario, are summarized in the Table 12.2.1 & 12.2.2 below and shown in Inundation cum Evacuation Map (Annexure 9a) as well.
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Table 12.2.1 - List of Main Crossing Structures likely to be submerged
Sl. No. Structure Ref. Bridge Name/ Location Tile ID No. in Inundation cum Evacuation Map (Annexure – 9a)
1 B1 Bridge near Thriveni Pamba 2/6
2 B2 Kanamala Causeway 5/6
3 B3 Kanamala new bridge 5/6
Table 12.2.2 - List of roads likely to be submerged
Sl. No. Road Details/landmarks Reference App. length Tile ID No. in under Inundation cum submergence Evacuation Map (km) (Annexure -9a)
1 Chalakayam - Pamba Road R1 0.75 2/6
2 Koruthode -Kanamala - R2 0.2 5/6 Thulappally
Part of Panchayat likely to be inundated is shown Inundation cum evacuation map (Annexure 9a) which can help/assist district authorities to prioritize in identifying infrastructure and sites with population at risk that may require protective measures and warning and evacuation planning. This Inundation cum evacuation map (Annexure 9a) can be used along with inundation maps included in Annexure 3. 12.3. Local Evacuation Plan If imminent failure of the dam with uncontrolled downstream flooding is anticipated, local disaster management and law enforcement personnel should notify those downstream for evacuation in the most expedient manner possible following the procedure given in the notification flow charts of this document (Notification Flow Chart – Annexure 5 & 6). Local law enforcement officials, along with local mobile network operators, radio and media representatives can best spread the notice for evacuation (See Responsibilities Sections, 6.4 and 6.5). In addition, Annexure 4 (Emergency Level Determination & Action Data Sheets) can be used as support in the decision-making process either to escalate or downgrade emergency event. The most important actions that should be taken during an evacuation process are: - Police Departments will barricade all bridges and roads that could possibly be flooded to prevent access to the affected area. These bridges include all crossings of main river and its tributaries as well as those affected roads shown in the Annexure 9a (Inundation cum
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Evacuation Maps Gavi). Crossings locations in the inundation indicate the appropriate barricade locations under the responsibility of local law-enforcement authorities. - The Districts Disaster Management Authorities (Districts Collectors) will assist with the notification of all persons and agencies involved (relief authorities), with the possibility of additional support—including contacting others not accessible by radio or telephone. - Relief Authorities (Police, Fire, Army) are generally familiar with developed areas in their jurisdiction. Such knowledge, coupled with the requirements of state law that they respond to disasters, make them the logical officials to be notified and to spread the warning message to all areas subject to flooding. - Based on the specific results of the dam breach analysis (wave arrival time), a local evacuation plan has been developed to assist disaster management authorities in the relief actions. - An Inundation cum Evacuation Map (Panchayat wise) showing the Panchayats likely to be inundated, roads/crossing structures likely to be submerged, nearby relief camps identified etc. is shown in Annexure 9a and a table with Panchayat wise details of Flood Hazard reference values and nearby shelters identified is shown in Annexure 9 b for Gavi respectively.
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13. IMPLEMENTATION
13.1. Development
This EAP version has been prepared by Kerala State Electricity Board Ltd. based on the inundation maps (Tier 1) prepared by Central Project Management (CPMU), Central Water Commission (CWC). The document has been reviewed by Central Project Management Unit (CPMU), Central Water Commission (CWC) and accorded concurrence.
13.2. Updating
Copies of the EAP have been provided to all authorities/officials included in the distribution list and the document has been approved and signed by the Chief Engineer (Civil – Dam Safety & DRIP). This plan will be reviewed and updated annually before the 1st of June of every year by the Emergency Planning Manager and the Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam. This review will involve corresponding personnel from local disaster management agencies.
The Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam will organize every year prior to monsoon an orientation meeting to introduce the revised EAP to local officials, emergency responders. This meeting will give an opportunity to all the stakeholders to review and comment on EAP document and their respective roles.
The Emergency Planning Manager will review and complete all items on the Annual EAP Evaluation Checklist in Annexure 10. After the annual update is complete, a new Approval and Implementation sheet will be attached and the annual update will be documented on the Plan Review and Update sheet in Annexure 11.
If revisions to the EAP are made as a result of the annual update, such changes will be recorded on the Log Sheet of Changes form at the front of the report. A copy of the updated portions of the EAP will be sent to the State DSO and all other concerned as per the EAP Distribution List. If the EAP was reviewed and revisions were not required, the [Dam Owner] will submit written notification to all concerned that no updates to the EAP have been adopted or implemented.
13.3. Testing
The Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam, shall organize the following exercises as specified below: - Orientation (Stakeholders’ Consultation): The Deputy Chief Engineer will organize an orientation meeting every year with local responders and stakeholders to solicit input, established roles during emergency situation and facilitate reliable responses to the emergencies. In orientation meeting, the Emergency Planning Manager will introduce the revised EAP to local officials and emergency responders and provide those entities
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the opportunity to review and comment on the documents and on their roles and responsibilities, described in EAP. - Tabletop exercises: Deputy Chief Engineer and Emergency Planning Manager will organize a table-top drill once in 2 years to discuss and review the simulated or imaginary emergency situation. The tabletop drill involves a meeting of Emergency Planning Manager with local and state Disaster Management Officials in a conference room. The drill begins with a description of simulated event and proceeds with discussions by the participants to evaluate the EAP and response procedures, and to resolve concerns regarding coordination and responsibilities. Any problems identified during a drill should be included in revisions to the EAP. - Before the tabletop exercise begins, meeting participants will visit the dam to familiarize with the dam site. Emergency Planning Manager will present a scenario of an unusual or emergency event at the dam. The scenario will be developed prior to the exercise. Once the scenario has been presented, the participants will discuss the risk involved, responses and related actions that they would take to address and resolve the scenario throughout the exercise. The exercise provides an opportunity to discuss EAP and response procedures and resolve the questions throughout the exercise. It will also clarify roles and responsibilities and will identify additional threat mitigation and preparedness actions. Records and reporting of the main conclusions/findings of both meetings will be maintained in Annexure 11 and following the deadline given in Table 13.3.1
Table 13.3.1- EAP exercise/testing requirements
Exercise Schedule Reporting Deadlines
Orientation (Stake Annual Pre-event : Submit agenda to stake holders 30 days Holders consultation) before meeting Post-event : Update (Annexure 10) within 30 days after meeting. Table top Exercise Once in Pre-event : Submit exercise plan and schedule to every 2 participants 90 days before exercise. years Post-event : Update (Annexure 10) and submit evaluation report within 60 days after exercise.
13.4. Training The Deputy Chief Engineer, Research and Dam Safety Organization, Pallom, Kottayam will ensure all people involved in the EAP be trained to guarantee that they are thoroughly familiar with its elements, the availability of equipment, and their responsibilities and duties under the plan. Personnel will be trained in problem detection, evaluation, and appropriate corrective measures. This training is essential for proper evaluation of developing situations at all levels of responsibility. Training records will be maintained also in Annexure 12.
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Annexure 1 -Dam Description
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GAVI
General
Dam Name : GAVI Name of River : GAVIAR Dam location : Pathanamthitta District.
Lat/Long : 90 26’28”/ 770 09’36” Seismic Zone : Zone III Year of Starting Dam Construction : Year of first Impoundment : 1991 Year of commissioning of Dam : 1991 Name of Immediate Upstream Dam : Nil Name of Immediate Downstream Dam : Perumthenaruvi Dam Emergency Planning Manager : PrasannaKumar. R Phone Number : 9446008424 Main Dam Type : Gravity Length : 115 m Maximum Height : 17 m Top of Dam : 1140 m Drainage area : 7.33 km2 Reservoir Full Reservoir Level : 1136.90 m Gross storage : 2.78 Mm3 (combined Kullar & Gavi)
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Annexure 2 - Vicinity Map
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Annexure 3 – Inundation Map (Separate Booklet)
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Annexure 4 - Action Data Sheet
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Emergency Level Determination - Action Data Sheet Index
Action Event/General Emergency Specific Observation/Condition Data Observation Level Sheet Unexpected Dam unexpectedly and without warning begins to RED SHEET A Failure fail
Concrete/ Minor cracks (bigger than ¼ cm.) in the BLUE SHEET C1 Masonry structure masonry/concrete structure, without leakage. Cracking Enlarging cracks (bigger than ¼ cm.) and active ORANGE SHEET C2 movement in the masonry/concrete structure, with leakage passing through.
Enlarging cracks with sudden or rapidly RED SHEET C3 proceeding movements/displacements in the masonry/concrete structure with severe leakage passing through.
Instrumentation Instrumentation readings are beyond threshold BLUE SHEET D1 values.
Earthquake Measurable earthquake felt or reported and dam BLUE SHEET F1 appears to be stable.
Earthquake resulting in visible damage to the dam ORANGE SHEET F2 or appurtenances which can cause a potential dangerous situation
Earthquake resulting in uncontrolled release of RED SHEET F3 water over dam or rapidly developing flow through cracks or rapidly developing erosion through increased seepage
Security Threat/ Unverified bomb threat or verified damage to the BLUE SHEET G1 Sabotage/ dam/appurtenances with no impacts in the Vandalism functioning of the dam
Verified bomb threat that if carried out, could ORANGE SHEET G2 result in damage of the dam/appurtenances that impacts the functioning of the dam OR verified damages due to vandalism that impacts the normal operation of the dam.
Detonated bomb resulting in visible damage to RED SHEET G3 the dam or appurtenances OR verified damages due to vandalism causing an uncontrolled water release
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Dam Overtopping Reservoir water surface 1 m below top of the dam ORANGE SHEET H2
Water from the reservoir is flowing over the top RED SHEET H3 of the dam
Seepage Seepage through dam body. New or minor BLUE SHEET J1 seepage at toe, on slope of embankment, abutments or galleries, water flowing clear
New, seriously or rapidly increasing seepage flow ORANGE SHEET J2 rate at toe, on slope of embankment, abutments or galleries, water flowing cloudy.
Serious seepage at toe, on slope of embankment, RED SHEET J3 abutments or galleries. Un controllable muddy water flowing. Failure of dam is imminent.
Sinkholes Sinkholes anywhere in the embankment or within BLUE SHEET K1 150 m downstream from
Sinkholes with seepage or flowing water ORANGE SHEET K2 anywhere in the embankment or within 150 m downstream of toe
Sinkholes rapidly enlarging with muddy water RED SHEET K3 anywhere in the embankment or within 150m downstream of toe.
Embankment Cracks in the embankment crest or slopes greater BLUE SHEET L1 cracking/ than ½ cm or ¼ inch wide and considerable length Movement without seepage.
Cracks in the embankment crest or slopes greater ORANGE SHEET L2 than ½ cm or ¼ inch wide and considerable length with active movement/ slippage and seepage through cracks.
Sudden or rapidly proceeding slides of the RED SHEET L3 embankment slopes. Cracks that extends up to the reservoir elevation.
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Event Description: RED ALERT SHEET A UNEXPECTED FAILURE
RECOMMENDED ACTIONS
Emergency Planning Manager (May be split responsibilities, i.e. One person at the dam handling on site actions and a different person who can make notifications. APPLICABLE TO ALL ACTION DATA SHEETS) A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Activate the Emergency Operations Center C. Recommend to the Districts Collectors and Disaster Management authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public. E. Record all information, observations, and actions on an Event Log Form (FORM 1).
Site’s Engineers
F. Stay a safe distance away from the dam
G. Observe conditions in site periodically and provide decision support as appropriate.
Deputy Chief Engineer/Chief Engineer
H. Communicate and keep informed the Chairman, KSEBL td.
State Dam Safety Organization
I. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and determine if: A. The event warrants downgrade if there is no longer an impending threat of dam failure with no additional rainfall occurring YET there is damage to the dam that prevents safe impoundment of water. All contacts on Event Level 1 Notification Flow Chart shall be notified of downgrade to Event Level 3.
B. Event may be Terminated only when either: - There is no longer an impending threat of dam failure with no additional rainfall occurring and it has been determined by Dam Safety staff safe to impound water or; - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. TERMINATION Monitor conditions until damage Go to Termination and is repaired Follow-up
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Event Description: BLUE ALERT STRUCTURE CRACKING: Minor cracks (bigger SHEET C1 than ¼ cm.) in the masonry/concrete structure, without leakage. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of the dam; this should be done to monitor without compromising the safety of anyone performing the tasks. C. Monitor water levels in the reservoir. Install a measurement device to monitor progress/movement in crack(s). D. Classify and describe the type of crack pattern and evaluate possible causes. E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Photograph and record the location, direction (longitudinal, vertical, diagonal etc.), depth, length, width and offset of each crack that has been discovered. Compare observations with earlier results. H. Closely monitor the crack for changes and look for structural damage, including mis alignment, settlement, vertical and horizontal displacements. Deputy Chief Engineer/Chief Engineer I. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if it is determined that the dam no longer pauses an immediate threat to downstream. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the cracks are enlarging AND leakage begins to flow from cracks. All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET C2 actions on this sheet. (ORANGE Alert)
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Event Description: STRUCTURE CRACKING: Enlarging cracks ORANGE ALERT (bigger than ¼ cm.) and active movement in SHEET C2 the masonry/concrete structure, with leakage passing through. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Make careful observation and inspection of every part of the dam; this should be done without compromising the safety of anyone performing these tasks. Monitor closely for changes in the spillways and outlet structures that may be affected. Items to be monitored include vertical, horizontal and lateral displacements, structural cracking and tilting of spillway walls. D. Monitor water levels in the reservoir and development of new crack(s). E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Observe conditions in site periodically and provide decision support as appropriate. H. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer I. Study an emergency lowering of the reservoir. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level is lowered to safe level. Event may not be terminated until repairs are made and causes of crack (s) have been determined. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the integrity of the dam appears to be threatened by sudden or rapidly proceeding movements/displacements. All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET C1(BLUE Alert) Continue recommended Go to SHEET C3 (RED actions on this sheet Alert)
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Event Description: STRUCTURE CRACKING: Enlarging cracks with RED ALERT SHEET C3 sudden or rapidly proceeding movements/ displacements in the masonry/concrete structure with severe leakage passing through. RECOMMENDED ACTIONS Emergency Planning Manager
A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level reduced to 1 m below FRL. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET C2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Event Description: BLUE ALERT INSTRUMENTATION: Instrumentation readings SHEET D1 are beyond threshold values. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of the dam related with the instruments’ measurements. C. Monitor water levels and instrument readings for changes or anomalies. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. F. If instrumentation readings at the dam are determined to indicate a potentially dangerous situation, go to the re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers G. Contact the Quality assurance/monitoring Division to inform the anomalies. H. Closely monitor the instruments’ performance and increase frequency readings to determine negative/ dangerous trends. Deputy Chief Engineer/Chief Engineer I. Review all pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if instrumentation readings back to normal or if instrument reading determined to be invalid. B. The event remains at the current Event Level. C. The event warrants escalation, if instrumentation readings at the dam are determined to indicate a potentially dangerous situation. All contacts on Notification Flow Chart shall be updated of changes. Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Monitor conditions until actions on this sheet. damage is repaired.
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Event Description: BLUE ALERT EARTHQUAKE: Measurable earthquake felt or SHEET F1 reported and dam appears to be stable. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of dam. C. Be prepared for after shocks D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions. F. If inspection has determined a potentially dangerous situation, go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers G. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. H. Monitor and supervise any remedial action and inform Emergency Planning Manager Deputy Chief Engineer/Chief Engineer I. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the dam is determined to be stable and a sufficient amount of time has passed. After shocks are not expected. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the inspection has determined a potentially dangerous situation All contacts on Notification Flow Chart shall be updated of changes.
Based on this evaluation, follow the appropriate action A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET F2 (ORANGE actions on this sheet. Alert)
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Event Description: EARTHQUAKE: Earthquake resulting in visible ORANGE ALERT SHEET F2 damage to the dam or appurtenances which can cause a potentially dangerous situation
RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Be prepared for after shocks D. Make careful observation and inspection of every part of dam. E. Monitor water levels in the reservoir and development of new damages or movements. F. Record all information, observations, and actions on an Event Log Form (FORM 1). G. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. H. If visible damages aggravate, rapidly go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers I. Observe conditions in site periodically and provide decision support as appropriate. J. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. K. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer L. Study an emergency lowering of the reservoir. State Dam Safety Organization M. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the damaged section B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if one or multiple of the conditions have been observed; Uncontrolled release of water over dam/rapidly developing flow through cracks All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET F1(BLUE Alert) Continue recommended Go to SHEET F3 (RED actions on this sheet Alert)
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Emergency Action Plan for GAVI MARCH 2021
Event Description: EARTHQUAKE: Earthquake resulting in RED ALERT uncontrolled release of water over dam or SHEET F3 rapidly developing flow through cracks or rapidly developing erosion through increased seepage RECOMMENDED ACTIONS Emergency Planning Manager
A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below the leakage level in the water. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET F2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Emergency Action Plan for GAVI MARCH 2021
Event Description: SECURITY THREAT/SABOTAGE: Unverified BLUE ALERT bomb threat or verified damage to the SHEET G1 dam/appurtenances with no impacts in the functioning of the dam RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Notify Law Enforcement Authorities to help to evaluate the situation. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions F. If inspection has determined a potentially dangerous situation go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers G. Access the dam only if the area has been cleared by Law Enforcement. H. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. Deputy Chief Engineer/Chief Engineer I. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization J. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the dam is determined to be stable and damages have been repaired. Local law enforcement authority has confirmed that there is no threat in the dam structure and surroundings. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the inspection has determined a potentially dangerous situation All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET G2 actions on this sheet. (ORANGE Alert)
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Emergency Action Plan for GAVI MARCH 2021
Event Description: SECURITY THREAT/SABOTAGE: Verified bomb threat ORANGE ALERT that if carried out, could result in damage of the SHEET G2 dam/appurtenances that impacts the functioning of the dam OR verified damages due to vandalism that impacts the normal operation of the dam. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Notify Law Enforcement Authorities to help to evaluate the situation. C. Identify the areas that would be potentially impacted by the emergency event D. Make careful observation and inspection of every part of dam. E. Record all information, observations, and actions on an Event Log Form (FORM 1). F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. G. If inspection has determined a potentially dangerous situation go to the re-evaluation /decision section and follow relevant steps immediately Site’s Engineers H. Access the dam only if the area has been cleared by Law Enforcement. I. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. J. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer K. Study an emergency lowering of the reservoir. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the damaged section B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if one or multiple of the conditions have been observed; Uncontrolled release of water over dam/rapidly developing flow through cracks All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET G1(BLUE Alert) Continue recommended Go to SHEET G3 (RED actions on this sheet Alert)
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Emergency Action Plan for GAVI MARCH 2021
Event Description: SECURITY THREAT/SABOTAGE: Detonated RED ALERT bomb resulting in visible damage to the dam or SHEET G3 appurtenances OR verified damages due to vandalism causing an uncontrolled water release RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers H. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization I. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET G2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Emergency Action Plan for GAVI MARCH 2021
Event Description: Potential Embankment Overtopping. Reservoir ORANGE ALERT SHEET H2 water surface elevation 1 m below the top of the dam
RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the area that would be potentially impacted by the emergency events. C. Make careful observations and inspection of every part of dam; this should be done without compromising the safety of any one performing these tasks. Monitor water levels and spillway area for erosion every 15 minutes. D. Record all information, observations and actions on an Event Log Form E. Contact the Superintending/ Chief Engineer hourly to report the latest observations and conditions. If conditions change significantly, go to re-evaluation/decision section and follow relevant steps immediately. Site’s Engineers F. Observe conditions at site periodically and provide decision support as appropriate. G. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the rainfall has stopped and slowing additional inflow to reservoir. Reservoir level are below MWL. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert the water begins to overtop the embankment All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to (BLUE Alert) Continue recommended Go to SHEET H3 (RED actions on this sheet Alert)
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Emergency Action Plan for GAVI MARCH 2021
Event Description: RED ALERT Embankment overtopping. Water from the SHEET H3 reservoir is flowing over the top of the dam RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when either: - Spillway flows have been stopped with no additional rainfall occurring - The dam has failed AND there is no longer a threat to the downstream public
All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET G2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Emergency Action Plan for GAVI MARCH 2021
Event Description: Seepage: Seepage through dam body. New or BLUE ALERT minor seepage at toe, on slope of SHEET J1 embankment, abutments or galleries, water flowing clear RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of dam. C. Record all information, observations, and actions on an Event Log Form (FORM 1). D. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions E. If inspection has determined a potentially dangerous situation go to the re-evaluation /decision section and follow relevant steps immediately. Site’s Engineers A. Observe conditions from a safe place at dam site periodically and provide decision support as appropriate. B. Use wooden stakes or flagging to delineate seepage area. Look for upstream whirlpools. Deputy Chief Engineer/Chief Engineer C. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization D. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the seepage flow has been stopped and found that it is safe to impound water. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the inspection has determined a potentially dangerous situation All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET J2 actions on this sheet. (ORANGE Alert)
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Emergency Action Plan for GAVI MARCH 2021
Event Description: Seepage: New, seriously or rapidly increasing ORANGE ALERT seepage flow rate at toe, on slope of SHEET J2 embankment, abutments or galleries, water flowing cloudy. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency event. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. F. Site’s Engineers G. Access the dam only if the area has been cleared by Law Enforcement. H. Conduct a comprehensive site inspection of the dam and appurtenant elements and make a report on most important finding. I. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer J. Study an emergency lowering of the reservoir. State Dam Safety Organization K. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the damaged section B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if one or multiple of the conditions have been observed;
All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET J1(BLUE Alert) Continue recommended Go to SHEET J3 (RED actions on this sheet Alert)
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Emergency Action Plan for GAVI MARCH 2021
Event Description: Seepage: Serious seepage at toe, on slope of RED ALERT SHEET J3 embankment, abutments or galleries. Un controllable muddy water flowing. Failure of dam is imminent. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager. G. Construct a large ring dike around the seepage area as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET J2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Emergency Action Plan for GAVI MARCH 2021
Event Description: BLUE ALERT Sinkholes: Sinkholes anywhere in the SHEET K1 embankment or within 150 m downstream from RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. B. Make careful observation and inspection of every part of dam. C. Monitor Water levels and change in diameter or depth of sinkholes every two hours. Attempt to determine source of sinkholes. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions Site’s Engineers E. Photograph and record the location, size and depth of the depression/sinkhole. Carefully walk the entire embankment and downstream area looking for additional sinkholes, movement or seepage. F. Use wooden stakes or flagging to delineate seepage area. Look for upstream whirlpools. Deputy Chief Engineer/Chief Engineer G. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if the sinkholes has been repaired and found that it is safe to impound water. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if the size of sinkhole is increasing progressively All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET K2 actions on this sheet. (ORANGE Alert)
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Event Description: Sinkholes: Sinkholes with seepage or flowing ORANGE ALERT SHEET K2 water anywhere in the embankment or within 150 m downstream of toe.
RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency event. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Monitor water levels and change in diameter or depth of sinkhole every two hours. F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. G. Site’s Engineers H. Observe conditions in site periodically. I. If conditions permit, plug the flow from upstream side with available material. Place an inverted filter over the exit area to hold soil material in place. J. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer K. Study an emergency lowering of the reservoir. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the sinkhole. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the sinkhole enlarges or the new sinkholes begins to form.
All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET K1(BLUE Alert) Continue recommended Go to SHEET K3 (RED actions on this sheet Alert)
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Event Description: RED ALERT Sinkholes: Sinkholes rapidly enlarging with SHEET K3 muddy water anywhere in the embankment or within 150m downstream of toe. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager. G. Construct a large ring dike around the seepage area as appropriate. Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization H. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if there is no longer an immediate impending threat of dam failure and water level lowered below to a safe level. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET K2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Event Description: Embankment cracking: Cracks in the BLUE ALERT embankment crest or slopes greater than ½ cm SHEET L1 or ¼ inch wide and considerable length without seepage. RECOMMENDED ACTIONS Emergency Planning Manager F. Implement the “Watch Condition Notification Flowchart”, using pre-scripted message. G. Make careful observation and inspection of every part of dam. H. Monitor Water levels and crack widths for movement or seepage. I. Record all information, observations, and actions on an Event Log Form (FORM 1). J. Contact the Deputy Chief Engineer/Chief Engineer at least daily to report the latest observations and conditions Site’s Engineers I. Photograph and record the location, length, depth and offset of each crack that has been discovered. Stakes should be placed at the end of crack and distance between stakes measured and recorded. Compare observations with earlier results. J. Closely monitor the crack for changes. Deputy Chief Engineer/Chief Engineer K. Review the pertinent information in order to recommend appropriate actions to Emergency Planning Manager. Provide corrective actions or works as required. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate. RE-EVALUATION / DECISIONS Evaluate conditions CONTINUOUSLY and Determine if: A. The event can be terminated if it is determined that the dam no longer poses an immediate threat to downstream. B. The event remains at the current Event Level. C. The event warrants escalation to ORANGE alert if cracks are enlarging or water begins to flow from cracks. All contacts on Notification Flow Chart shall be updated of changes.
A. TERMINATION B. EVENT LEVEL REMAINS THE C. EVENT LEVEL SAME ESCALATION Go to Termination and Follow-up Continue recommended Go to SHEET L2 actions on this sheet. (ORANGE Alert)
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Event Description: Embankment cracking: Cracks in the ORANGE ALERT embankment crest or slopes greater than ½ cm SHEET L2 or ¼ inch wide and considerable length with active movement/ slippage and seepage through cracks. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flow Chart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency event. C. Make careful observation and inspection of every part of dam. D. Record all information, observations, and actions on an Event Log Form (FORM 1). E. Monitor water levels and development of new cracks or movement hourly. F. Contact the Deputy Chief Engineer/Chief Engineer hourly to report the latest observations and conditions. G. Site’s Engineers H. Observe conditions in site periodically. I. If conditions permit, stabilize slides on the downstream slope by adding weight in the toe area below the slide with additional soil or rock. J. Provide corrective actions or work as required. Deputy Chief Engineer/Chief Engineer K. Study an emergency lowering of the reservoir. State Dam Safety Organization L. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS
Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to BLUE alert if the water level in the reservoir is lowered below the bottom level of the embankment fill. B. The event remains at the current Event Level. C. The event warrants escalation to RED alert if the integrity of the dam appears to be threatened by sudden or rapidly proceeding slides.
All contacts on Notification Flow Chart shall be updated of changes
Based on this Evaluation, follow the appropriate action
A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS C. EVENT LEVEL THE SAME ESCALATION
Go to SHEET L1(BLUE Alert) Continue recommended Go to SHEET L3 (RED actions on this sheet Alert)
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Event Description: Embankment cracking: Sudden or rapidly RED ALERT SHEET L3 proceeding slides of the embankment slopes. Cracks that extends up to the reservoir elevation. RECOMMENDED ACTIONS Emergency Planning Manager A. Implement the “Failure Condition Notification Flowchart”, using pre-scripted message. B. Identify the areas that would be potentially impacted by the emergency events C. Recommend to the Districts Collectors and Disaster Management Authorities IMMEDIATE EVACUATION downstream of the dam and affected areas as per Local Evacuation Plan. D. Stay a safe distance away from the dam. The immediate concern is the safety of the downstream public E. Record all information, observations, and actions on an Event Log Form (FORM 1). Site’s Engineers F. Observe conditions from a safe place at dam site periodically and inform Emergency Planning Manager.
Deputy Chief Engineer/Chief Engineer/ State Dam Safety Organization G. Provide decision support and technical support to the Emergency Planning Manager as appropriate.
RE-EVALUATION / DECISIONS based upon ANNEX TABLE I Evaluate conditions CONTINUOUSLY and Determine if: A. The event warrants downgrade to ORANGE alert if the seepage has stopped and water level in the reservoir is lowered below level of seepage. B. The event remains at the current Event Level (No change in situation). C. Event may be Terminated only when: - The dam has failed AND there is no longer a threat to the downstream public All contacts on Notification Flow Chart shall be updated of changes.
Based on this determination, follow the appropriate action A. EVENT LEVEL DOWNGRADE B. EVENT LEVEL REMAINS THE C. TERMINATION SAME Go to SHEET L2(ORANGE Alert) Continue recommended Go to Termination and actions on this sheet Follow-up
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Annexure 5 – Watch Notification Flow Chart
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WATCH CONDITION NOTIFICATION FLOW CHART (Internal Alert)
OBSERVER OF EVENT RESOURCES
DAM SITE OFFICE
ASSISTANT ENGINEER ASST. EXE. ENGINEER BLUE ALERT HEAVY EQUIPMENT SERVICES Aji T Sreekumar M B SAND & GRAVEL SUPPLY Mob: 9496011952 Mob: 9496011966 CRANE SERVICE
1 Delta Aggregate & sand (P) Ltd. Nias P V Chittar Ph: 9747224353 EMERGENCY PLANNING 9946109711 TIPPER SERVICE MANAGER READYMIX CONCRETE 3 Babu Kuriyakoze EXECUTIVE ENGINEER 9447159501
CVC Ready Mix PrasannaKumar R Aroor, Ernakulam EXCAVATOR SERVICE Mob : 944608424 1 Ph: 9847068369 Abbreva Heavy Equipments Ph :9152192017 2
HYDRO MECHANICAL ELECTRICAL CONTRACTOR DY. CHIEF ENGINEER CHIEF ENGINEER State DSO CONTRACTOR
Preetha R. Supriya S CHIEF ENGINEER Biju Paul K.V. Mathew & Sons 9446008492 1 9496018719/8078245940 Mob: 9744505257 Ph : 9447672277 Biju D EXECUTIVE ENGINEER EXECUTIVE ENGINEER 0471-2306159 Entire list of Contractor/Supplier can be found in ANNEXURE 8 Joji George Mathew Ganesan 9496018650 9496008964
Suggested Phone Message : - This is [Identify yourself, name, position Note: - An unusual event has been detected at Gavi, The
EAP has been activated, currently at Blue Alert ………. Call sequence priority - The situation is being monitored to determine if any evacuation warning will be necessary. We will keep Compulsory Communication you apprised of the situation - I can be contacted at the following no. ….. If you Alternative Communication cannot reach me, please call the following alternative no ………
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Annexure 6 – Failure Notification Flow Chart
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FAILURE CONDITION NOTIFICATION FLOW CHART – (External Alert) PATHANAMTHITTA DISTRICT
RESOURCES OBSERVER OF EVENT RED ALERT EMERGENCY PLANNING HEAVY EQUIPMENT DAM SITE OFFICE 1 SERVICES MANAGER ASSISTANT ENGINEER ASST. EXE. ENGINEER Event Level Escalation based on Action sheet CRANE SERVICE EXECUTIVE ENGINEER Aji T Sreekumar M B 2 Nias P V Mob: 9496011952 Mob: 9496011966 ORANGE ALERT PrasannaKumar R Ph: 9747224353 4 Mob : 944608424 2 TIPPER SERVICE 3 4 1 1 DOWNSTREAM DAM DY. CHIEF ENGINEER CHIEF ENGINEER Dr. A Jayathilak IAS Babu Kuriyakoze 9447159501 OWNER PATHANAMTHITTA DISTRICT Pricipal Secretary
2 Disaster Management 8 ANNEXURE in (Perumthenaruvi Preetha R. Supriya S EXCAVATOR SERVICE 9446008492 9496018719/8078245940 Govt. of Kerala Dam) Ph : 0471 2517214, 0471 2333028 Abbreva Heavy Asst. Executive EXECUTIVE ENGINEER EXECUTIVE ENGINEER DISTRICT COLLECTOR Equipments Engineer, NARASIMHUGARI T L REDDY IAS STATE DISASTER MANAGEMENT Ph :9152192017 ELECTRICAL Perumthenaruvi Joji George Mathew Ganesan Phone : 0468-2222505 AUTHORITY Mob :9447029008 9496018371 9496018650 9496008964 CONTRACTOR Dr. Sekhar L. Kuriakose Ph : 0471 - 2331345 K.V. MathewEntire &list Sons of 2 DISTRICT POLICE CHIEF Ph : 9447672277 1 1 STATE EMERGENCY OPERATION CENTRE State DSO Central Dam Safety Organization R NISHANTHINI IPS Ph : 0471 2364424
District Police Chief SAND & GRAVEL Gulsan Raj Pramod Narayan Ph : 04862222636 1 SUPPLY Biju D Chief Engineer, CWC, Director, Dam Safety & Mob : 9497996983 New Delhi Delta Aggregate & sand Chief Engineer Rehabilitation, CWC Army/Navy Forces Ph : 9999277474 (P) Ltd.Chittar 0471-2306159 Ph : 9958975921 found be can Contractor/Supplier of list Entire Ph : 011 - 26106848 FIRE & RESCUE 0484 2874789 9946109711 Ph: 011 - 29583480 Ph: 0468 2222001 READYMIX Suggested Phone Message: (Orange Alert) CONCRETE Tahsildar – Konni - This is [Identify yourself, name, position]. I am making this call-in NDRF, Thrissur accordance with Gavi EAP. Ph:8547618430, 0468 2240087 CVC Ready Mix
9446665794 Aroor, Ernakulam - We have an emergency at Gavi, The EAP has been activated, currently at 2 Ph: 9847068369 Orange Alert. We are implementing pre-determined actions to respond to a Health/Hospitals – 0468 2214108 rapidly developing situation that could result in dam failure. The situation is HYDRO MECHANICAL being monitored to determine if any evacuation warnings will be necessary. Media – 0468 2224774 CONTRACTOR Refer your copy of the EAP to prepare for possible evacuation - I can be contacted at the following no. ….. If you cannot reach me, please Biju Paul Suggested Phone Message: (Red Alert) call the following alternative no ……… Mob: 9744505257
- This is an EMERGENCY. This is [Identify yourself, name, position]. Gavi is failing. The downstream Note: area must be evacuated immediately according to the evacuation map in your copy of EAP. The EAP has been activated, currently at Red Alert. Call sequence priority - I can be contacted at the following no. ….. If you cannot reach me, please call the following Compulsory Communication alternative no ……… Alternative Communication Page 70
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Annexure 7 - Sample Public Announcements
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Sample Public Announcements
Note: These messages are communicated to downstream residents to alert the public of impending danger. The Emergency Planning Manager should coordinate with the India Meteorological Department, the District Disaster Management Authority, and the District Collectors (Table 6.2.1) prior to release. Messages can be communicated via radio, television, bulk SMSs of local mobile networks, and other media outlets.
Announcement for a Slowly Developing “Watch” Condition (BLUE Emergency Level
Kerala State Electricity Board Ltd. has declared a BLUE Level ―Watch condition for Gavi, as of [time and date]. [Briefly describe the problem or condition.] Although there is no immediate danger of the dam failing, [Describe what actions are being taken to monitor and control the situation.] [State the quantity of any releases from the reservoir.]
Announcement for a Worsening “Watch” Condition (BLUE Emergency Level)
Kerala State Electricity Board Ltd. has declared a BLUE Level ―Watch condition for Gavi, as of [time and date]. [Briefly describe the problem or condition.] Although there is no immediate danger of the dam failing a possibility now exists that the dam will fail [or describe any other consequence] if correction efforts are unsuccessful. [Describe what actions are being taken to monitor and correct the situation.] [State the quantity of any releases from the reservoir]. Additional news will be made available as soon as it is received.
Announcement for a Probable “Failure” Condition (ORANGE Emergency Level)
Urgent! This is an emergency message. Kerala State Electricity Board Ltd. has announced that for Gavi, is probably going to fail [or describe any other consequence] [Describe what actions are being taken to monitor and control the situation.] It is possible that the dam will fail in [##] hours. Residents in low lying areas along the downstream reaches of Gavi stream, as well as the town of [Or Indicate the specific towns/villages to be evacuated according to the expected scenario], should prepare for immediate evacuation. Additional news will be made available as soon as it is received.
Announcement of an Impending “Failure” Condition (RED Emergency Level)
Emergency! This is an emergency message. for Gavi, is going to fail at any moment [or describe any other consequence]. Residents who have not yet done so should immediately evacuate the towns of ……………………..and low-lying areas along the Gavi stream and banks [Or Indicate the specific towns/villages to be evacuated according to the expected scenario]. The flood waters have already reached [Highway] and [Road]. Additional news will be made available as soon as it is received.
Announcement of an Ongoing “Failure” Condition (RED Emergency Level)
Emergency! This is an emergency message. for Gavi, failed [or describe any other consequence] at [time and date]. Residents who have not yet done so should immediately evacuate the towns of ……………………. and low-lying areas along the Gavi stream and banks [Or Indicate the specific towns/villages to be evacuated according to the expected scenario]. The flood waters have already reached [Highway] and [Road]. Additional news will be made available as soon as it is received.
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Annexure 8 - Supplies and Resources
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Supplies and Resources
The following equipment and supplies may be necessary for use during a dam emergency. Contact information for local/national contractors who can provide the following items during an emergency is listed below. For supplies owned by the dam owner, the dam owner‘s name and the specific location of the supplies have been denoted.
Contractor Type Name, Title, Phone Remarks Civil Works Contact Name: Services: Ready Mix Concrete, Company Name: Uralungal Labour Sand bags, Earthwork Contract Co-operative Society Mobilization / Response Time: Office Ph: +914962514042 Moderate: Website: Email: [email protected] Company Name: M/s CMJ Granites, Services: Sand bags, Earthwork, Mariyapuram. Gravel supply. Mobile : 9447510667 Mobilization / Response Time: Moderate: Company Name: CVC Ready Mix Services: Ready Mix Concrete. Aroor, Ernakulam Mobilization / Response Time: Ph: 9847068369 Moderate:
Delta Aggregate & sand (P) Ltd. Services: Rubble, Sand Chittar Mobilization / Response Time: 9946109711 Moderate: Hywel Ready Mix Services: Ready Mix Concrete. Pathanamthitta Mobilization / Response Time: 8590120120 Moderate: Electro/Mechanical Works Contact Name: CHANDRABOSE J Services: Mechanical works Company Name: Steel Industrials Mobilization / Response Time: Kerala Limited Moderate Office Ph: 91-484-2358874 Email: [email protected] Contact Name: Services: Mechanical works Company Name: Asianic Engineering Mobilization / Response Time: Corporation Moderate Office Ph: 91-484-2358874
Contact Name: JOSEPH Services: Mechanical works Company Name: Electro Track Mobilization / Response Time: Office Ph: 0484-2395904 Moderate Website: Pre-Agreement: NO Email:
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Contact Name: Services: Electrical contractor Electrical Works Company Name: SL ELECTRICALS Mobilization / Response Time: Mobile Ph: +91 9447018631 Moderate Website: Email: [email protected]
Contact Name: Mr. Murali Nair Services: Electrical contractor Company Name: E&C Controls 'A' Mobilization / Response Time: Grade Licensed Electrical Immediate Contractors Office Ph: 094471 15702 Website: Email: Contact Name: Services: Electrical contractor Company Name: K.V. Mathew & Sons Mobilization / Response Time: Electrical Contractors Moderate Office Ph: 9447672277 Website: Email: Contact Name: Services: Meteorological Instrumentation Company Name: Environmental Instrumentation measurements and control (supplier and service) Office Ph: +91-9447797793 Mobilization / Response Time: Website: emconindia.com moderate Email: info@emconindia Pre-Agreement: NO Contact Name: Services: Structural Company Name: Tyrannus Instrumentation Innovative Engineering And (supplier and service) Research Academy Pvt Ltd. Mobilization / Response Time: Office Ph: +91 9495838831 moderate Website: www.tieraonline.com Pre-Agreement: NO Email:[email protected] Contact Name: Services: Geotechnical Company Name: Sys Tel Instrumentation Instrumentation Services Pvt. Ltd. (supplier and service) Mobile Ph: +91 8127369742 Mobilization / Response Time: Office ph.:+91 0522 495 3344 Low (Uttar Web-Site: www.sisplgroup.com Pradesh) Pre-Agreement: NO
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Contact Name: Services: Diving & ROV Services, Special Works/ Equipment Company Name: Neel underwater underwater services inspections Office Ph: +91 9447295958 Mobilization / Response Time: Website: Low Email: Pre-Agreement: NO Contact Name: Services: Diving & ROV Services, Company Name: Frogman underwater underwater services Inspections, welding Office Ph: 91 9965789230 Mobilization / Response Time: Website: Low Email: Pre-Agreement: NO [email protected] Contact Name: Dinesh K. Yadav Services: Prevention, Detection Company Name: Asha underwater and Repair/arrest of leakage in Services Pvt. Ltd. sluice, service gate. Mobile Ph. 1: +91-9820554228 Spot Dredging and Trash Office Ph. 1: +91-251-2232598 removal from forebays, intakes. Office Ph. 2: +91-251-2231712 Underwater inspections. Web-Site: Mobilization / Response Time: http://ashaunderwater.com/ Moderate (Andhra Pradesh) Pre-Agreement: NO Contact Name: Services: Geotechnical/ Consultants Company Name: College of Structural/ Hydraulic/Hydrology (Hydraulic, Geotechnical, Engineering Trivandrum. consultancy. Mechanical, Structural) Office Ph: +914712515572 Academic Institution Website: cet.ac.in Mobilization/Response Time: Email: [email protected] Moderate Pre-Agreement: NO Company Name: Central Water & Mobilization / Response Time: Power Research Station (CWPRS), Low (Pune) Pune. Pre-Agreement: NO Mobile Ph. 1:+91(20)24103200 Mobile Ph. 2:+91(20) 24380511 Office Ph.1: +91(20) 24380825 Contact Name: Services: Geotechnical Company Name: Central Soil And Mobilization/Response Time: Materials Research Station (CSMRS) Low (Delhi) Office Ph. 1:+91-11-26967985 Pre-Agreement: NO Office Ph. 2: :+91-11- 26961894 Contact Name: Babu Kuriyakoze Rental Services for Bulldozers, Heavy Equipment Company Name: crane, Dump Trucks. (Cranes, Bulldozers etc.) Mobile Ph: 9447159501 Mobilization / Response Time: Website: Immediate. Email: Pre-Agreement: NO
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Contact Name: Nias P V Rental Services for Backhoes, Company Name: Dump trucks, Portable welding Mobile Ph: 9747224353 equipment, Generators, Website: Bulldozers, Excavators, Loaders Email: Motor graders Mobilization / Response Time: Immediate Pre-Agreement: NO
Contact Name: Rent Backhoes, Dump trucks Company Name: Abbreva Heavy Portable welding equipment Equipments. Generators, Bulldozers, Mobile Ph: 9152192017 Excavators, Loaders, Website: www.abbrevagroup.com Motor graders. Email: Mobilization / Response Time: Moderate Pre-Agreement: NO Contact Name: Paul Thampy Services: Wireless and Radio Communications Company Name: ZAK Security Communication (Warning Systems, CCTV, IT, Solutions Equipment. Voice and Data Wireless Communications) Mobile Ph: +91 903 701 8246 Communication. Website: Early Warning Systems Email: (Supplier) Response Time / [email protected] Mobilization: Low Pre-Agreement: NO Contact Name: Ranvir Soni Services: Wireless and Radio Company Name: Meatech Solutions Communication Pvt. Ltd. Equipment. Automatic Weather Mobile Ph. 1:+91- 9810955787 Stations. Mobile Ph. 2: +91 9831073081 Disaster Warning Systems. Web-Site: Topographical http://www.meatechsolutions.com Survey Mobilization / Response Time: Moderate (Kolkata and Delhi) Pre-Agreement: NO Sudakaran Services : Operation and Hydro Mechanical Mob: 9744505257 Maintenance of Gates. Contractor Mobilization / Response Time: High Pre-Agreement: NO
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Annexure 9a – Inundation cum Evacuation Map
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Annexure 9b – Flood Hazard Reference Values and Local Evacuation Plan
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FLOOD HAZARD REFERENCE VALUES AND LOCAL EVACUATION PLAN Evacuation Name of Panchayat/ Flood reference Values Estimated Nearby Shelters/relief Camps identified Responsible for Tile ID No. in Priority Municipality Flood Depth Velocity Water (Ref: Inundation cum Evacuation Map - Evacuation Inundation cum arrival (m) (m/s) Surface Annexure 9a) Evacuation Map Time Elevation (m) (Annexure -9a) (Hrs.)
1 Seethathode 0-2 5-8 3-10 142-1118 1/6, 2/6, 3/6
S1 - Govt. UP School, Kosady S2 - St. Antony's College, Mukkoottuthara District Police Chief, 2 Chittar 2-11 5-6 0.8-3 72-142 3/6, 4/6, 5/6, 6/6 S3 - Little Flower Public School, Pathanamthitta Kollamula, Mukkoottuthara S4 - Jawahar Navodaya Vidyalaya, Vechoochira.
3 Vechoochira 11-18 5-6 0.1-0.8 63-72 5/6, 6/6
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Annexure 10 - Annual EAP Evaluation Checklist
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Annual EAP Evaluation Checklist
Evaluation Year: Evaluation done by :
Was the annual dam inspection □ Yes If yes, has the EAP been □ Yes conducted? □ No revised to include any signs of □ No failures observed during the inspection?
as weed clearing, animal burrow □ Yes If yes, describe actions taken and date: removal, or other maintenance □ No required?
Was the outlet gate operable? □ Yes If no, describe actions taken and date: □ No
Does the Notification Flowcharts □ Yes If yes, list the dates of the contact require revision? □ No information revision and redistribution: (Note that revision of the contact information will not require EAP approval; however, the revised contact information pages will need to be redistributed as replacement pages.)
Was annual training or a tabletop □ Yes If yes, specify : □ Training □ Drill drill conducted? □ No Date conducted:
Are inspection and training □ Yes records included in the EAP? □ No
Was the EAP reviewed? □ Yes If yes, review date: □ No
Were changes required to the □ Yes If yes, date of revised EAP approval: EAP? □ No
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Annexure 11 - Plan Review and Update
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Plan Review and Update
This plan will be reviewed and updated annually and table-top drills will be carried out at least once every five years. Document these reviews below.
Date of review: Participants:
Date of review: Participants:
Date of review: Participants:
Date of review: Participants:
Date of table top drill: Participants:
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Annexure 12 - Training Record
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Training Record
Use this form to record training sessions. All items in the EAP should be thoroughly reviewed during training. Appropriate KSEBL employees and EAP responsible should attend a training session annually (or participate in a simulated drill).
TRAINING LOCATION:
DATE: TIME: INSTRUCTOR:
CLASS SIGN-IN:
Type of simulation conducted: Specific emergency type
Emergency water release
Watch conditions
Possible dam failure
Imminent dam failure
Actual dam failure
Comments, Results of Drill:
Revisions Needed to EAP Based on Results of Drill
(Yes / No). If yes, list revisions required:
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Annexure 13 – Stakeholders’ Meeting
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Minutes of Stakeholders’ meeting held on 09.03.2021at 11.00am in Virtual Platform (Cisco Webex)
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Annexure I
Stakeholders’ Consultation meeting on Emergency Action Plan for “Kallar, Erattayar, Sengulam, Kullar, Gavi, Meenar I, Meenar II & Upper Moozhiyar dams” of Kerala Electricity Board Limited (KSEBL) held on 09.03.2021 at 11.00 a.m. in the Virtual Platform (Cisco Webex).
List of Participants (as displayed in cisco webex tiles) Sl No. Name & Details (as per the tiles in Cisco Office (as per the tiles in Cisco Webex Platform Webex Platform) 1 Sri Pramod Narayan CPMU – DRIP (Central Water Project Director Commission) 2 Sri. Gaurav Singhai CWC
3 Dr. Chabungbam Rajagopal Singh World Bank TTL DRIP 4 Sri David Gonzalez EGIS, CWC Consultant DBA Specialist CPMU 5 Dr. Santosh Kumar Tripathi, Geological Survey of India Deputy Director General Hydrabad 6 Sri. Swapan Kumar Manik Scientist C, I M D 7 ADM Idukki 8 DDP Idukki 9 DDP Idukki 10 DDP PTA 11 DSCO IDUKKI 12 DSO II DMOH IDUKKI 13 DYSP DCRB Pathanamthitta 14 MC Thiruvananthapuram 15 RTO 16 RTO Pathanamthitta 17 DDMA, Pathanamthitta 18 SE DRIP Madurai 19 Tahsildar 20 Smt. Supriya S KSEBL Chief Engineer(Dam Safety & DRIP) 21 Sri. Mohanan P KSEBL Deputy Chief Engineer 22 Sri. Jayakumar C R KSEBL Assistant Engineer 23 Smt. Susan Ninan KSEBL 24 Sri. Prasanna Kumar Executive Engineer Dam Safety Division Seethathode 25 Sri. Sakkir Hussain A Assistant Executive Engineer Dam Safety Subdivision Seethathode
26 Sri Amanpreet N R S C
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27 Sri. Arunlal K NITI Aayog. Water & Land 28 Sri. Joby Johnson KSEBL 29 Chief Engineer Dam Safety, Odisha 30 Bayichan Chittar Gramapanchayat 31 Konnathady Gram panchayat 32 Nedumkandam Gram panchayat 33 Secretary 34 Secretary, Vechoochira Gramapanchayat 35 Devarajan K 36 Jeseela H 37 M Balakrishnan AIR 38 MdPuHPc4C22 39 Ramesh 40 Rafeekabeevi P 41 Reji V Kuriakose 42 Sukanya R 43 Tapas Ranjan Patnaik 44 Thiagaraj N 45 Vinodkumar
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Screen Shots of Stakeholders’ consultation meeting
Welcome Address – Smt. Supriya S, Chief Engineer (Civil – Dam Safety & DRIP), KSEBL
Keynote Address – Sri. Pramod Narayan, Project Director, DRIP, CWC
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Felicitation – Dr. Rajgopal Singh, Task Team Leader, DRIP, World Bank
Felicitation – Sri. Anilkumar M T. Additional District Magistrate, Idukki
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Felicitation – Sri. Santhosh Kumar Tripathi, Deputy Director General, GSI
Felicitation – Sri. Amanpreet Singh, NRSC
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Felicitation – Sri. Swapan Kumar Manik, Scientist C, IMD
Felicitation – Sri. Arunlal K, NITI Aayog
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Technical Sessions - Presentation - CPMU
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Technical Sessions - Presentation - CPMU
Emergency Action Plan for GAVI MARCH 2021
Technical Sessions - Presentation - KSEBL
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