OIL AND NATURAL GAS CORPORATION LIMITED Environmental Impact Assessment Report for Installation of Dual Sub- sea Pipeline and Umbilical for Odalarevu Facility, East Godavari District, Andhra Pradesh EIA Report Asian Consulting Engineers Private Limited, New Delhi MAY 2013 EIA Report for installation of dual 14” sub-sea pipeline and umbilical for Odalarevu facility TABLE OF CONTENTS EXECUTIVE SUMMARY CHAPTER-1: INTRODUCTION 1.1 BACKGROUND …………………………………………………………………………………... 1-1 1.1.1 Project Benefits and Objectives …………………………………………………………. 1-3 1.1.2 Project Proponent ………………………………………………………………………... 1-3 1.1.3 EIA Consultant …………………………………………………………………………... 1-3 1.2 DESCRIPTION OF THE DUAL SUBSEA PIPELINES ……..…………………………………… 1-4 1.3 LEGAL AND OTHER REQUIREMENTS …………………..…………………………………… 1-4 1.4 SCOPE OF THE EIA STUDY ……………………………………………………….……………. 1-5 1.5 APPROACH & METHODOLOGY OF EIA STUDY …………………………………………….. 1-8 1.5.1 Approach of the EIA Study ……………………………………...………………………. 1-8 1.5.2 Establishment of Baseline Environmental Status …………………..……………………. 1-8 1.5.3 Field Study/Monitoring for Generation of Primary Data ………………………………... 1-8 1.5.4 Environmental Impact Assessment ……………………………………………………… 1-8 1.6 STRUCTURE OF THE REPORT …………………………………………………………………. 1-12 CHAPTER-2: PROJECT DESCRIPTION 2.1 KEY BLOCK INFORMATION …………………………………………………………………… 2-1 2.2 PROJECT OBJECTIVES ………………………………………………………………………...... 2-1 2.3 PIPELINE AND SUBSEA STRUCTURES …………………………….......................................... 2-1 2.3.1 Subsea Structures and their Arrangement ……………………………………………….. 2-3 2.4 DESIGN DETAILS OF VASHISHTA AND S-1 PRODUCTION PIPELINES ………………….. 2-4 2.5 PIPELINE MATERIAL DETAILS ………………………………………………………………... 2-4 2.6 STAFFING ………………………………………………………………………………………… 2-5 2.7 RESOURCE REQUIREMENT ….…………………...…….………………………..……………. 2-5 2.8 NOISE, AIR EMISSIONS, EFFLUENTS, AND SOLID WASTE GENERATION ………........... 2-5 CHAPTER-3: DESCRIPTION OF THE ENVIRONMENT 3.1 INTRODUCTION …………………………………………..……………………………………... 3-1 3.2 STATE OF THE ENVIRONMENT ……….………………………………………………………. 3-3 3.2.1 Seismic Considerations…………………………………………………………………... 3-3 3.2.2 Climate and Meteorology ……….……………………………………………………..... 3-4 3.2.3 Micro-Meteorology ……………...………………………………………………………. 3-4 3.2.4 Bathymetry and Seabed Topography…………………………………………………….. 3-5 3.2.5 Waves and Tides.…………………………………………………………………….…... 3-6 3.2.6 Cyclones………….……………………………………………………………………..... 3-6 3.2.7 Circulation……….. …………………………………………………………………….... 3-7 3.2.8 Land Use………...……………………………………………………………………...... 3-8 3.3 MARINE ENVIRONMENT ………………………..…………………………............................... 3-9 3.3.1 Marine Water Quality ….………………………………………………………………… 3-9 3.3.1.1 Physico-chemical characteristic...………….………….………........................ 3-11 3.3.1.2 BOD and COD ………….………….………….………….………................... 3-11 3.3.1.3 Heavy Metals ……..….………….………….………….………….………...... 3-11 3.3.1.4 PAHs 3-12 3.3.2 Sediments Quality ……………………………………………………………………...... 3-12 3.3.2.1 Sediments quality monitoring results…..…….………….………..................... 3-13 3.3.3 Biological 3-14 Characteristics……………………………………………………………........ 3.3.3.1 Primary productivity and phytoplankton…….………….………..................... 3-15 3.3.3.2 Zooplankton… ………….………….………….………….………................... 3-20 3.3.3.3 Benthos……. ……..….………….………….………….………….………...... 3-23 3.3.3.4 Fisheries ……………………………………………………………………… 3-24 3.4 TERRESTRIAL ENVIRONMENT ……………………………………………………………...... 3-24 3.4.1 Soil Characteristics … ………………………………………………………………........ 3-24 Asian Consulting Engineers Pvt. Ltd. i EIA Report for installation of dual 14” sub-sea pipeline and umbilical for Odalarevu facility 3.4.2 Water Environment ……. ……………………………………………………………….. 3-29 3.4.3 Air Environment ……………………………………………………………………........ 3-35 3.4.4 Noise Environment…………………….. ………………………………………….......... 3-39 3.4.5 Biological Characteristics……….……………………………………………….............. 3-43 3.5 SOCIO-ECONOMIC ENVIRONMENT ………………………………………………………...... 3-46 3.5.1 Demography………………………...………………………………………………......... 3-48 3.5.2 Occupation ………………………………………………………………………………. 3-49 3.5.3 Livestock ………………………………………………………………………………… 3-54 3.5.4 Educational Facilities ……………………………………………………………………. 3-54 3.5.5 Health Care Facilities ……………………………………………………………………. 3-55 3.5.6 Drinking Water Facility …………………………………………………………………. 3-56 3.5.7 Communication Facility …………………………………………………………………. 3-56 3.5.8 Post, Telephone & Electricity Facilities …………………………………………………. 3-56 3.5.9 Architectural Monuments ………………………………………………………………... 3-57 3.5.10 Environmental Concern ………………………………………………………………….. 3-58 3.5.11 Man Animal Conflict ……………………………………………………………………. 3-58 CHAPTER-4: ANTICIPATED ENVIRONMENTAL IMPACTS & MITIGATION MEASURES 4.1 INTRODUCTION …………………………………………………….…….………….………….. 4-1 4.2 IMPACT PREDICTION …………………………….…….………….……………….……............ 4-2 4.2.1 Air Environment ….………….………….………….………….………….………........... 4-2 4.2.2 Impact on Noise Quality …….………….………….………….………….……..…......... 4-3 4.2.3 Impact on Water Quality ….………….………….………….……………..……..……… 4-3 4.2.4 Impact on Sediment and Soil Quality ……….………….……………..……..…….......... 4-4 4.2.5 Ecological Impacts ……………………….……………..……..……..……..……........... 4-4 4.2.6 Impact on CRZ ………………….………….………….……………..……..…………. 4-5 4.2.7 Socio-Economic Environment ...….………….………….……………..……..…………. 4-7 4.3 IMPACT EVALUATION …….………….………….………….………….…………..……..…… 4-8 4.4 IMPACT SIGNIFICANCE …….………….………….……………..….………………..…..…...... 4-9 4.5 IMPACT MITIGATION MEASURES …….………….………….……………..……………........ 4-10 4.5.1 Air Environment …………………………………………………………………………. 4-10 4.5.2 Water Environment ……………………………………………………………………… 4-10 4.5.3 Noise Quality ……………………..…….………………………………………………... 4-10 4.5.4 Subsea Infrastructure………………………………..………………………………...... 4-11 4.5.5 Impact on Ecological Environment …………………………………………………….. 4-11 4.5.6 Waste Generation and Management …………………………………………………….. 4-11 CHAPTER-5: ENVIRONMENTAL MONITORING PROGRAM 5.1 INTRODUCTION …………………………………………………….…….………….………….. 5-1 CHAPTER-6: ADDITIONAL STUDIES 6.1 INTRODUCTION ………………………………………………………..……………….……...... 6-1 6.2 SUBSEA PIPELINE AND ONSHORE PIPELINE ………………………..……………….…… 6-2 6.3 RISK ASSESSMENT …………………………………………..……………….…………………. 6-3 6.3.1 Hazards --Nature and sensitivity of impact zones ……………………………………….. 6-3 6.3.2 Failure Scenarios (Likely) ……….………….……………………………………............ 6-5 6.3.3 Sensitive Receptors and Impact ……….………….……………………………………... 6-11 6.3.4 Subsea Pipeline layout impacts…… ….…………………………………………………. 6-11 6.3.5 Onshore Pipeline Installation Impact Zone ……………………………………………... 6-11 6.3.6 Control Measures for Major Hazards …………..……….………….………………….. 6-11 6.3.7 Fire Fighting Facility …….………….………………………………………………...... 6-11 6.3.8 Occupational Health …….………….………………………………………………...... 6-12 6.4 DISASTER MANAGEMENT PLAN AND EERGENCY RESPONSE PLAN …………………... 6-13 6.4.1 Emergency Classification ………………………………………………………………... 6-14 6.5 EMERGENCY RESPONSE PLAN ……………………………………………………………...... 6-15 6.5.1 On Scene Coordinator ………………………………………………………………….... 6-16 6.5.2 Site Control Room ………………………………………………………………….......... 6-17 Asian Consulting Engineers Pvt. Ltd. ii EIA Report for installation of dual 14” sub-sea pipeline and umbilical for Odalarevu facility 6.5.3 Communication ………………………………………………………………….............. 6-17 6.5.4 Communicating with Employees ………………………………………………………... 6-19 6.5.5 Communicating with Media ……………………………………………………………... 6-20 6.5.6 Warning System …………………………………………………………………………. 6-20 6.5.7 Emergency Procedures …………………………………………………………………... 6-20 6.5.8 Accident site cleanup ……………………………………………………………………. 6-21 6.5.9 Emergency response personal safety …………………………………………………….. 6-21 6.5.10 All Clear Signal and Public Statement …………………………………………………... 6-21 CHAPTER-7: PROJECT BENEFITS 7.1 PROJECT BENEFITS …………………………………………………………............................... 7-1 CHAPTER-8: ENVIRONMENTAL MANAGEMENT PLAN 8.1 PURPOSE AND OBJECTIVES OF THE EMP …………………………………………….…...... 8-1 8.2 WASTE MANAGEMENT PLAN …………………………………….………………………….. 8-5 8.3 CAPITAL AND RECURRING COST FOR POLLUTION CONTROL MEASURES ……........... 8-6 8.4 ENVIRONMENTAL AWARENESS TRAINING ………………………………………………... 8-7 CHAPTER-9: SUMMARY AND CONCLUSION 9.1 SUMMARY AND CONCLUSION ………………………………………………………….......... 9-1 CHAPTER 10: DISCLOSURE OF CONSULTANTS ENGAGED 10.1 INTRODUCTION …………………………………………………………………………………. 10-1 10.2 QUALITY OF SERVICES …………………………………….…………………………………... 10-1 10.3 AREA OF SPECIALIZATION …………………………………………………………….……… 10-1 10.4 RESOURCES …………………………………………………………………………….………... 10-2 ANNEXURE - I……………………………………………………………………………………………..………. ANNEXURE - II…………………………………………………………………………………………….………. ANNEXURE - III…………………………………………………………………………………………...………. ANNEXURE - IV…………………………………………………………………………………………...……….. ANNEXURE - V…………………………………………………………………………………………….………. ANNEXURE - VI…………………………………………………………………………………………...……….. ANNEXURE - VII……………………………………………………………………………………….....……….. ANNEXURE - VIII…………………………………………………………………………………………………. ANNEXURE - IX…………………………………………………………………………………………...……….. ANNEXURE - X…………………………………………………………………………………………….………. ANNEXURE - XI…………………………………………………………………………………………...……….. ANNEXURE - XII…………………………………………………………………………………………..………. ANNEXURE – XIII………………………………………………………………………………………...……….. ANNEXURE – XIV...……………………………………………………………………………………………….. Asian Consulting Engineers Pvt. Ltd. iii EIA Report for installation of dual 14” sub-sea pipeline and umbilical for Odalarevu facility LIST OF TABLES Table No. Title Page No. Table 1.1 Applicable Acts and Guidelines ………………………………………………........ 1-4 Table 1.2 TOR Compliance