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Environmental & Social Baseline Environmental, Social, and Health Impact Assessment (ESHIA) for Vista Onshore Operations Environmental and Social Baseline 24 June 2019 Project No.: 0510093 The business of sustainability Document details The details entered below are automatically shown on the cover and the main page footer. PLEASE NOTE: This table must NOT be removed from this document. Document title Environmental, Social, and Health Impact Assessment (ESHIA) for Vista Onshore Operations Document subtitle Environmental and Social Baseline Project No. 0510093 Date 24 June 2019 Version 05 Author Silvana Prado / Rebeca Palomares / Lisset Saenz Client Name Vista Oil & Gas Document history ERM approval to issue Version Revision Author Reviewed by Name Date Comments Draft 00 Silvana Prado Andrea Alfrido 07/06/2019 Borrador a Vista / Rebeca Fernandez Wagner Palomares / Lisset Saenz Draft 01 Silvana Prado Andrea Alfrido 14/06/2019 Borrador a Vista / Rebeca Fernandez Wagner Palomares / Lisset Saenz Draft 02 Silvana Prado Andrea Alfrido 18/06/2019 Borrador a Vista / Rebeca Fernandez 7 Wagner Palomares / Natalia Lisset Saenz Delgado Draft 03 Silvana Prado Andrea Alfrido 18/06/2019 Borrador a Vista / Rebeca Fernandez / Wagner Palomares / Natalia Lisset Saenz Delgado Final 05 Silvana Prado Andrea Alfrido 24/06/19 / Natalia Fernandez Wagner Delgado www.erm.com Version: 05 Project No.: 0510093 Client: Vista Oil & Gas 24 June 2019 Signature Page 24 June 2019 Environmental, Social, and Health Impact Assessment (ESHIA) for Vista Onshore Operations Environmental and Social Baseline [Double click to insert signature] [Double click to insert signature] Alfrido Wagner Andrea Fernandez Sanday Partner in Charge Project Manager ERM Argentina S.A. Av. Cabildo 2677, Piso 6° (C1428AAI) Buenos Aires, Argentina © Copyright 2019 by ERM Worldwide Group Ltd and / or its affiliates (“ERM”). All rights reserved. No part of this work may be reproduced or transmitted in any form, or by any means, without the prior written permission of ERM. www.erm.com Version: 05 Project No.: 0510093 Client: Vista Oil & Gas 24 June 2019 ENVIRONMENTAL, SOCIAL, AND HEALTH IMPACT ASSESSMENT (ESHIA) FOR VISTA ONSHORE OPERATIONS Environmental and Social Baseline CONTENTS 5. ENVIRONMENTAL AND SOCIAL BASELINE ............................................................................ 3 5.1 Abiotic Component ........................................................................................................................ 3 5.1.1 Climatologic Aspects ..................................................................................................... 3 5.1.2 Geology ........................................................................................................................ 6 5.1.3 Geomorphology ............................................................................................................ 9 5.1.4 Topography ................................................................................................................. 11 5.1.5 Soils ............................................................................................................................ 12 5.1.6 Hydrology and Hydrogeology ...................................................................................... 13 5.1.7 Air quality .................................................................................................................... 17 5.1.8 Emissions ................................................................................................................... 25 5.1.9 Water quality ............................................................................................................... 27 5.1.10 Effluent - Domestic Wastewater .................................................................................. 38 5.1.11 Environmental Liabilities ............................................................................................. 41 5.2 Biological component ................................................................................................................... 43 5.2.1 Terrestrial Flora ........................................................................................................... 43 5.2.2 Terrestrial Fauna ......................................................................................................... 45 5.2.3 Threatened and Endangered Species, Endemic Species ........................................... 47 5.2.4 Protected Areas, National Parks and Biological Sensitive Areas ................................ 48 5.2.5 Critical Habitat Screening and Preliminary Assessment ............................................. 48 5.2.6 Ecosystem Services Preliminary Assesment .............................................................. 53 5.3 Social Component ....................................................................................................................... 55 5.3.1 Geopolitical configuration ............................................................................................ 55 5.3.2 Socio economic indicators .......................................................................................... 55 5.3.3 Essential Social Services ............................................................................................ 62 5.3.4 Land use ..................................................................................................................... 65 5.3.5 Stakeholder mapping .................................................................................................. 69 5.3.6 Archaeologic, historical and cultural resources; and Paleontological heritage ............ 71 List of Tables Table 5-1 Meterological Station Information ........................................................................................... 3 Table 5-2 Stratigraphic Units................................................................................................................... 9 Table 5-3 Analytical Results.................................................................................................................. 17 Table 5-4 Analytical Methodologies Used for the Evaluation of Air Quality .......................................... 18 Table 5-5 Values Guide for Atmospheric Air Quality ............................................................................ 18 Table 5-6 Values Guide for Atmospheric Air Quality ............................................................................ 20 Table 5-7 IFC EHS -Ambient Air Quality Guidelines ............................................................................ 20 Table 5-8 Sampling Stations Air Quality ............................................................................................... 21 Table 5-9 Result of Sampling ................................................................................................................ 23 Table 5-10 Small Combustion Facilities Emissions Guidelines (IFC) ................................................... 25 Table 5-11 Result of Sampling .............................................................................................................. 26 Table 5-12 Analytical Methodologies Used........................................................................................... 27 Table 5-13 Sampling Stations ............................................................................................................... 28 Table 5-14 Results of Deep Wells Sampling ........................................................................................ 29 Table 5-15 Evaluated Parameters and Analytical Methodologies Used for the Evaluation of Produced Water ..................................................................................................................................................... 30 Table 5-16 Neuquén SRH permit for reinjection- Guideline Values Guide for Treated Produced Water .............................................................................................................................................................. 32 Table 5-17 Treated Produced Water IFC Guidelines for discharge to surface water and land disposal .............................................................................................................................................................. 32 Table 5-18 Sampling Stations of Raw Produced Water ....................................................................... 33 Table 5-19 Sampling Stations of Treated Produced Water .................................................................. 33 www.erm.com Version: 05 Project No.: 0510093 Client: Vista Oil & Gas 24 June 2019 Page i C:\Users\ext_fcristof\Desktop\Mid Co\OPIC\ERM\Docs to deliver\Chapter 5 Baseline.docx ENVIRONMENTAL, SOCIAL, AND HEALTH IMPACT ASSESSMENT (ESHIA) FOR VISTA ONSHORE OPERATIONS Environmental and Social Baseline Table 5-20 Result of Sampling of Raw Produced Water ...................................................................... 33 Table 5-21 Result of Sampling of Treated Produced Water ................................................................. 34 Table 5-22 Analytical Methodologies Used for the Evaluation of Water Quality .................................. 36 Table 5-23 Sampling Stations Water Quality ........................................................................................ 37 Table 5-24 Result of Sampling of Freatimeter ...................................................................................... 37 Table 5-25 Evaluated Parameters and Analytical
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