MEDACTHU PROGRAM

28 September 2007

EPA ThessaliaEmergency and Readiness Procedures

EPA THESSALIA

GAS DISTRIBUTION SYSTEM

GAS DISTRIBUTION SYSTEM DATA

EPA MANAGES THE MEDIUM AND LOW

PRESSURE GAS DISTRIBUTION NETWORK

(MPDS, LPDS) IN THE URBAN AREA OF LARISSA

AND GHIANULI MUNICIPALITIES AND IN THE

AREA OF VOLOS

EPA MANAGES THE MEDIUM AND LOW PRESSURE GAS DISTRIBUTION NETWORK IN THE INDUSTRIAL AREAS (VIPE) OF LARISSA AND VOLOS

DESIGN PRESSURE: 19 BAR

SERVICE PRESSURE: 16 BAR

TYPE OF DISTRIBUTION: PIPELINES

PIPELINE MATERIAL: STEEL

PIPE INSTALLATION: BURIED PIPES

LENGTH: ~86 KM

DIAMETER: VARIES FROM 14’’ TO 2’’

MEDIUM PRESSURE DATA

GAS SUPPLIER: DESFA

GAS DELIVERY STATIONS (CITYGATES): 2

NORTH LARISSA CITYGATE LOCATION: NEW NATIONAL

ROAD, SYKOYRIO JOINT

SOUTH LARISSA CITYGATE LOCATION: BY NEW

NATIONAL ROAD, NEAR PLATYKAMPOS JOINT

OPERATIONS AT CITYGATES PROVIDED BY DESFA

PRESSURE REDUCTION AND REGULATION SERVICES

OVERALL QUANTITY AND ENERGY METERING

ODORIZATION

MEDIUM PRESSURE DATA inLARISSA

GAS SUPPLIER: DESFA

GAS DELIVERY STATIONS (CITYGATES): 2

VOLOS A’ INDUSTRIAL ESTATE (A VIPE) CITYGATE

LOCATION: A VIPE VOLOS, 3RD ROAD

KOKKINA VILLAGE DESFA LINE VALVE CITYGATE FROM

WHICH STARTS A 28 KM 8“ BRANCH TO SOVEL

OPERATIONS AT CITYGATES PROVIDED BY DESFA

SERVICE PRESSURE REDUCTION AND REGULATION

OVERALL QUANTITY AND ENERGY METERING

ODORIZATION

MEDIUM PRESSURE DATA VOLOS & SOVEL (ALMYROS)

PRESSURE REDUCTION: 19/4 BAR

NOMINAL CAPACITY: 5000 Nm3/h

TYPE: 2 LINES

INSTALLATION: ABOVE GROUND FENCED IN

PUBLIC AREAS

NUMBER OF IRI: 4 (SERVING LARISSA-

GHIANULI), 2 (SERVING INDUSTRIAL AREA)

IRI STATIONS LARISSA AREA

PRESSURE REDUCTION: 19/4 BAR

NOMINAL CAPACITY: 5000 Nm3/h

TYPE: 2 LINES

INSTALLATION: ABOVE GROUND FENCED IN PUBLIC

AREAS

NUMBER OF IRI: 4 (SERVING VOLOS-NEA IONIA

COUNCILS), 1 (SERVING A’ INDUSTRIAL ESTATE – A’

VIPE), 1 (SERVING B’ INDUSTRIAL ESTATE – VIPE

VELESTINO), 1 (SERVING AGRIA COUNCIL)

IRI STATIONS VOLOS AREA

DESIGN PRESSURE: 4 BAR

SERVICE PRESSURE: 3 BAR

PIPELINE MATERIAL: HIGH DENSITY POLYETHYLENE

PIPE INSTALLATION: BURIED PIPES

LENGTH: ~490 KM

DIAMETER: VARIES FROM Φ160 TO Φ63

NETWORK TOPOLOGY: LOOPED (Φ125) WITH OPEN BRANCH EXTENSIONS (Φ125/Φ63) DERIVED FROM LOOP FOR SATURATION

LPDS DEVELOPMENT

URBAN AREA OF LARISSA DIVIDED INTO THREE OPERATING SECTOR (OS) EACH ONE COVERED BY A MAJOR LOOP AND SATURATED BY OPEN BRANCHES

EACH OS SUPPLIED BY ONE OR MORE IRI

LP DISTRIBUTION SYSTEM

THE LOW PRESSURE DISTRIBUTION NETWORK SERVES:

~ 20300 CLIENTS IN GAS IN LARISSA AND VOLOS

AREAS

20 INDUSTRIAL CLIENTS

CLIENTS ARE SERVED VIA 5.500 SERVICE LINES DERIVED

FROM THE LOW PRESSURE DISTRIBUTION NETWORK

26 EPA INDUSTRIAL CLIENTS ARE SERVED FROM THE

MEDIUM PRESSURE DISTRIBUTION NETWORK (4 IN LARISSA

AREA)

CLIENTS IN GAS

ΘΕΣ ΣΑΛΙΑΣ

MEDIUM PRESSURE P&IDLARISSA

MEDIUM PRESSURE P&ID VOLOS/NEA IONIA

EPA THESSALIA

OPERATING PROCEDURES

PROCEDURES

EPA Procedures N° 011 and 012

According to the Natural Gas Distribution Licence EPA Thessalia has to guarantee:

Operation and Maintenance of the whole

network

Readiness Management

Crisis Management

Safety of the population

Safety of the involved employees

Secure operation of the gas distribution system

Continuity of gas distribution service

Compliance to regulations:

- Gas Distribution License

- National Technical Regulation: Operation

and Maintenance Manual

PROCEDURESREQUIREMENTS TO BE FULFILLED

READINESS PROCEDURE

PRO 011 and operational instruction 013Applied in case of anomaly or accident in the gas network or in the internal installation of the Client

CALL CENTER

SCADA

THIRDS

Head of ReadinessOperating Technical Head

(2º )Squad Head (1º)Technician (1º)External Contractor

Intervention by 2 h for 90% of calls and 4h for 10%

EPA RUNS A READINESS SERVICE DURING WORKING AND NON WORKING HOURS (24 H A DAY, 365 D A YEAR) ACCORDING TO INTERNAL PROCEDURES 011 AND 013

DURING WORKING HOURS THE OPERATING READINESS IS GUARANTEED BY THE HEAD OF READINESS, THE OPERATING TECHNICAL HEAD, THE SQUAD HEAD AND TECHNICIAN. ALL PEOPLE ARE ON OPERATING READINESS WHILE CARRYING OUT NORMAL MAINTENANCE DUTIES ACCORDING TO THE SCHEDULE

AFTER THE WORKING HOURS THERE ARE TWO LEVELS OF AVAILABILITY:

- 1° LEVEL: Squad Head and Technician

- 2° LEVEL: Operating technical head

READINESS PROCEDURE CONT’D

READINESS MANAGEMENTTHE READINESS SQUAD HEAD IS CONTACTED BY THE CALL CENTER ABOUT GAS INCIDENTS OCCURING AT THE EPA RESPONSIBILITY ZONE

THE SQUAD HEAD MANAGES THE READINESS SQUAD DECIDING THE RESOURCES TO UTILISE FOR RESOLVING THE SITUATION

AN EXTERNAL CONTRACTOR WITH ADEQUATE PERSONNEL AND EQUIPMENT IS ALSO ON READINESS WITH DUTIES REGULATED BY A CONTRACT WITH EPA

CONTRACTOR IS ORDERED BY THE SQUAD HEAD, AFTER JUDGEMENT OF THE INCIDENT, TO INTERVENE IN MAXIMUM TWO HOURS TIME FROM THE ANNOUNCEMENT

THE OPERATING TECHNICAL HEAD IS CALLED BY THE SQUAD HEAD IN CASE OF DIFFICULT INTERVENTION OR PRESENCE OF PUBLIC AUTHORITIES

THE OPERATING TECHNICAL HEAD INFORMS THE COMPANY’S UPPER LEVEL MANAGEMENT IF THE INCIDENT IS JUDGED TO HAVE CHARACTERISTICS OF AN EMERGENCY OR CRISIS

EPA THESSALIA

EMERGENCY PROCEDURE

The results on gas distribution system may be:

Unscheduled out of operation of City Gates or IRS

Unscheduled out of operation of Medium Pressure and Low Pressure network with gas supply interruption for one or more final clients

Gas supply interruption to one or more final clients following a gas leakage

Pressure excess or shortage in the network

Gas supply interruption to at least 250 final Clients and for which the gas is not supplied for more than 24 hours.

Pro. 012: CRISIS MANAGEMENT FOR THE GAS DISTRIBUTION SYSTEM

EMERGENCY: EVENT ABLE TO PRODUCE SERIOUS AND/OR LARGE SCALE EFFECTS ON GAS DISTRIBUTION SYSTEM

ATTACHED:

I. TERRITORIAL EMERGENCY PLAN for

EPA THESSALONIKIS

EPA THESSALIAS

II. GENERAL EMERGENCY PLAN

III. JOURNAL OF EMERGENCY MANAGEMENT

ACTIVITIES

Pro. 012: CRISIS MANAGEMENT FOR THE GAS DISTRIBUTION SYSTEM

EMERGENCY MANAGEMENT

NOTIFICATION OF ANOMALIES IN THE DISTRIBUTION NETWORK

EVALUATION OF THE ANOMALIES or INNEFICIENCIES

EMERGENCY MANAGEMENT

FINAL ANALYSIS

CONTROL AND MONITORING

REPORTING

NOTICE OF ANOMALIES

CALL CENTER MAY BE INFORMED ABOUT AN

ANOMALY BY:

THIRDS

SAFETY BOARDS SUCH AS FIRE FIGHTING

BRIGADE, POLICE ETC.

ALARMS FROM REMOTE CONTROL SYSTEM

EPA PERSONNEL

THE CALL CENTER OPERATES ACCORDING TO THE

PROCEDURE 011 READINESS MANAGEMENT

EVALUATION OF ANOMALIES

THE READINESS HEAD OR THE OPERATING TECHNICAL HEAD

INFORM THE HEAD OF TECHNICAL DEPARTMENT ABOUT A

LARGE SCALE OR OUTSTANDING ANOMALY

THE HEAD OF TECHNICAL DEPARTMENT EVALUATES THE

EVENTS AND ANNOUNCES THE EMERGENCY TAKING CHARGE

OF THE OPERATIONS

IN CASE OF GENERAL EMERGENCY (PUBLIC AUTHORITIES AND

BOARD INVOLVED, MEDIA ETC.) EPA GENERAL MANAGER

ANNOUNCES AND TAKE CHARGE OF GENERAL EMERGENCY

EMERGENCY MANAGEMENT

COORDINATES THE EMERGENCY STRUCTURE (INCLUDING MAINLY

ALL TECHNICAL PERSONNEL)

IN CASE OF GENERAL EMERGENCY IS ACTIVATED ALSO THE

EMERGENCY STEERING COMMITTEE (INCLUDING ALL UPPER LEVEL

MANAGEMENT OF EPA)

INFORMS AND GET INVOLVED AUTHORITIES AND SAFETY BOARDS IF

REQUIRED. IN THIS CASE IS SUPPORTED BY “COIME” AND “LEGAL”

DEPARTMENT

INFORMS COMMERCIAL DEPARTMENT IF IT’S NECESSARY TO

INTERRUPT THE GAS SUPPLY TO SOME CUSTOMERS

ACTIONS PROVIDED BY THE HEAD OF EMERGENCY

EMERGENCY MANAGEMENT CONT’D

KEEP THE CALL CENTER UPDATED ABOUT THE EMERGENCY

PROGRESS IN ORDER TO GUARANTEE A CONSTANT AND CORRECT

INFORMATION TO PEOPLE CALLING

ONCE RESTATED THE SAFETY CONDITIONS AND THE GAS SUPPLY TO

ALL FINAL CLIENTS, THE HEAD ANNOUNCES THE END OF THE

EMERGENCY

INFORMS ALL PERSONNEL, DEPARTMENTS AND AUTHORITIES

INVOLVED DURING THE EMERGENCY

AN EMERGENCY JOURNAL IS FILLED IN TO RECORD ALL ACTIONS

ADOPTED.

ACTIONS PROVIDED BY THE HEAD OF EMERGENCY

FINAL ANALYSIS

BY TWO MONTHS FROM THE END “INAU” DEPARTMENT

PROVIDES AN ANALYSIS OF THE EMRGENCY CASE

HOW THE INTERNAL STRUCTURE HAS WORKED

HOW THE EXTERNAL CONTRACTORS HAVE WORKED

AVAILABILITY OF DATA AND INFORMATION

AVAILABILITY OF TOOLS AND MATERIALS

COMMUNICATION

RELATIONSHIP WITH AUTHORITIES, MEDIA ETC

EVENTUAL NEEDS FOR IMPROVING THE EMERGENCY PLAN

MONITORING AND REPORTING

THE HEAD OF EMERGENCY SENDS TO THE GREEK ENERGY

AUTHORITY (RAE) A REPORT FOR EACH EMERGENCY AS

REQUIRED BY THE GAS LICENCE

“INAU” MONITORS ALL EMERGENCY ACTIVITIES AND ISSUES

EVERY SIX MONTHS A REPORT

AFTER EACH EMERGENCY “INAU” ISSUES A REPORT TO BE

PRESENTED TO THE GENERAL MANAGER

ALL TERRITORIAL AND GENERAL EMERGENCY PLANS ARE

FILED AND UPDATED BY TECHNICAL DEPARTMENT