ESIA Integrations Annex 13 Preliminary Feasibility Study SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 1 of 82 Rev. TAP 0 TAP Connection to the Snam Rete Gas National Gas Pipeline Network DN 1200 (48’’) DP 75 bars PRELIMINARY FEASIBILITY STUDY Bonadeo 0 First edition Swich Bonadeo Caffarelli 04/2014 Rev. Description Written by Checked by Approved by Date Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 2 of 82 Rev. TAP 0 C O N T E N T S 1. FOREWORD 5 2. SCOPE OF THE WORK 6 3. DESIGN SELECTION CRITERIA AND ALTERNATIVE ROUTES 7 2.1 General 7 2.2 Basic Design Criteria 7 2.3 Definition of the Base Case Route 8 2.4 Alternative Routes 8 4. REFERENCE LEGISLATION 11 5. DESCRIPTION AND TECHNICAL CHARACTERISTICS OF THE WORK 17 4.1 Line 17 4.2 Line Plants and Points 19 4.3 Constructions (Complementary Works) 21 6. WORK CONSTRUCTION PHASES 22 5.1 Construction of Provisional Infrastructure 22 5.2 Opening of the Working Strip 22 5.3 Opening of Temporary Roads for Access to the Working Strip 25 5.4 Placement of the Pipes on the Working Strip 25 5.5 Welding of the Line 26 5.6 Non-Destructive Tests on the Welds 26 5.7 Digging of the Trench 27 5.8 Covering of the Welding Joints 27 5.9 Laying of the Pipeline 27 5.10 Backfilling and Laying of the Telecommunications Cable 28 5.11 Constructions of Crossings 30 5.12 Hydraulic Test, Connection and Inspection of the Pipeline 33 5.13 Execution of the Restoration Work 34 5.14 Work Site Equipment and Vehicles 34 5.15 Work Schedule 34 Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 3 of 82 Rev. TAP 0 5.16 Excavated Earth and Rock Management 35 7. OPERATION OF THE WORK 36 6.1 Management of the Gas Transmission System 36 8. SAFETY OF THE WORK 41 7.1 General Considerations 41 7.2 Accident Prevention 42 7.3 Operation and Control of the Gas Pipeline 47 7.4 Conclusions 52 9. ENVIRONMENTAL COMPONENTS INFLUENCED BY THE WORK 53 8.1 Climate 53 8.2 Geological Features 54 8.3 Geomorphological Features 54 8.4 Hydrological Features 54 8.5 Pedological Features 55 8.6 Vegetation and Land Use 55 8.7 Land Use 56 8.8 Landscape 56 8.9 Fauna and Ecosystems 57 8.10 Sites of Community Importance 58 8.11 Nature Reserves 64 10. ENVIRONMENTAL MITIGATION AND RESTORATION OPERATIONS 67 9.1 Mitigation Measures 67 9.2 Morphological and Hydraulic Restoration Works 67 9.3 Final Settlement of Roads and Access Areas 68 9.4 Restoration of Low Dry Stone Walls 69 9.5 Restoration of the Vegetation 69 11. WORK-ENVIRONMENT INTERACTION 76 10.1 Identification of Project Actions and their Impact Factors 77 10.2 Interaction between Project Actions and Environmental Components 78 10.3 Impact of the Work Once Completed 79 Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 4 of 82 Rev. TAP 0 12. CONCLUSIONS 81 13. ANNEXES 82 Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 5 of 82 Rev. TAP 0 1. FOREWORD This study concerns the project entitled “TAP Connection to the Snam Rete Gas National Gas Pipeline Network - DN 1200 (48”) DP 75 bars” with a total length of about 56 km and to be laid in the provinces of Lecce and Brindisi in the southern part of the region of Puglia. The purpose of this study is to identify a corridor for connecting the TAP (Trans Adriatic Pipeline) natural gas pipeline from the Pipeline Receiving Terminal, situated in the municipality of Melendugno (LE), to the National Gas Pipeline Network owned by Snam Rete Gas, in the municipality of Brindisi. Considering the location of the delivery point selected by TAP and the position of the existing Gas Pipeline Network, this study has identified as a possible inlet point to the National Network an existing plant on the “Reinforcement Pipeline for the Industrial Centre of Brindisi DN 1050 (42”)” gas pipeline, situated at “Masseria Matagiola” in the municipality of Brindisi, (see fig.1). National Network inlet point TAP delivery point LEGEND National network Regional network Fig. 1 – Existing gas pipeline network The analysis of the corridor identified and the considerations on the compatibility of the work with the environmental protection and town planning instruments are currently based on preliminary assessments that take account principally of the national legislation and the degree of urbanization/anthropization actually present in the area concerned. More specific, investigations into the regional/provincial/municipal protection instruments and local town planning are currently being studied. Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 6 of 82 Rev. TAP 0 2. SCOPE OF THE WORK The proposed route (Base Case) of the “TAP connection to the Snam Rete Gas National Gas Pipeline Network – DN 1200 (48”), DP 75 bar” pipeline, with its total length of about 56 km, develops on the Tableland of Salento in Puglia, in a principally N-NW direction, to the East of Lecce. LEGEND National network Regional network Base case Fig. 2 – Geographical scope of the work The Base Case crosses the provinces of Lecce (62.2%) and Brindisi (37,8%), through the municipal districts of Melendugno, Vernole, Castri di Lecce, Lizzanello and Lecce in the province of Lecce and the municipal districts of Torchiarolo, San Pietro Vernotico and Brindisi in the province of Brindisi. The following works are associated with the route described above: “Metering system and pig launching station” at km 0+000 in the municipality of Melendugno to be located entirely within the TAP plant area; 2 “P.I.L.” line interception points for blocking the flow; 4 “P.I.D.I.” important interception/offtake points for blocking the flow and branching off with any secondary lines; “P.I.D.I.” important interception/offtake point with interconnection and “Pig launching and receiving station” at km 56 in Masseria Matagiola (Brindisi) extending an existing system. Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 7 of 82 Rev. TAP 0 3. DESIGN SELECTION CRITERIA AND ALTERNATIVE ROUTES 2.1 General The proposed route of the gas pipeline is shown on the map on a 1:100.000 scale (Annexe 1 – Base Case and Alternative Routes) and has a total length of about 56 km. The route is situated entirely in the Region of Puglia, passing through the Provinces of Lecce and Brindisi and the following 8 municipalities: Melendugno Vernole Castri di Lecce Lizzanello Lecce Torchiarolo San Pietro Vernotico Brindisi 2.2 Basic Design Criteria The entire Base Case route was defined in respect of the provisions laid down in M.D. of 17/04/2008 “Technical regulations for the design, construction, testing, operation and supervision of the works and systems for the transportation of natural gas with a density of no more than 0.8”, the legislation in force, the technical regulations on the design of these works and the health and safety regulations to be respected on work sites (Italian legislative decree no. 81/2008). The route was defined in compliance with the aforesaid legislation, applying the following criteria of good design practice: Identify sustainable routes with a view to mitigating the environmental impact of the work, by favouring the restoration of the areas crossed and full recovery of their morphological features, vegetation and land use; Limit the length of the route and the amount of land used as far as possible; Avoid villages and areas of urban development as far as possible; Pass through agricultural areas where possible and avoid crossing areas included in town- planning and/or industrial development plans; Avoid areas prone to earthquakes; Data file: tap_progettopreliminare This document is the property of Snam Rete Gas. The Company will defend its rights in civil and criminal proceedings in accordance with the law. SNAM RETE DEPT: TYPE REPORT GAS REINV UNIT: REINV/PROFAM/01042014 PROFAMB CUSTOMER: Page 8 of 82 Rev. TAP 0 Avoid, where possible, the buffer zones around springs and wells used for drinking water; keep the number of points where watercourse are crossed to a minimum, limiting them to areas in which the stability of the pipeline is ensured and carrying out the necessary restoration and drainage works; avoid wooded areas as far as possible; reduce private property constraints determined by the gas pipeline easement to a minimum, using, where possible, the corridors already used by other existing infrastructure; ensure the staff responsible for operating and maintaining the system can access and work on the systems under safe conditions; avoid polluted sites altogether or, if this is not possible, limit their use to a minimum.