contaminated sites - ICCL, International Committee on
contaminated sites - ICCL, International Committee on
Environmental E i t l policy li for the clean up and remediation of contaminated sites/brownfields in Mexico Ing. Eduardo Enrique González Hernández Ing General Director for Comprehensive Management of Materials and Risky Activities Secretaría de Medio Ambiente y Recursos Naturales/SEMARNAT. México October, 2011. CONTENTS • NATIONAL PROGRAM FOR THE REMEDIATION OF CONTAMINATED SITES (PNRSC) • • • • NATIONAL INVENTORY OF CONTAMINATED SITES‐ SISCO LATIN AMERICAN BROWNFIELDS NETWORK RELASC LATIN AMERICAN BROWNFIELDS NETWORK‐RELASC SUCCESSFUL MEGAPROJECTS LESSONS LEARNED 1 NATIONAL PROGRAM FOR THE REMEDIATION OF CONTAMINATED SITES (PNRSC) CONTAMINATED SITES (PNRSC) Main objective: Reduction R d ti off th the number b off contaminated t i t d sites it where human health and natural resources are affected Reintegration of remediated contaminated sites into the economic cycle Contribution to urban renovation and improvement of living conditions in inner cities 2 Goals and strategies of the PNRSC Goal 1: “Management of contaminated sites” Improvement of the management of contaminated sites through risk assessment and improved administrative procedures Goal 2: “Development p and consolidation of legal g framework” Improvement and consolidatetion of the legal framework for the prevention, the remediation and recycling of contaminated sites. G l 3: Goal 3 “Development “D l t off capabilities” biliti ” Implementation of apacity development programs providing experience and advice in the decision making process Goal 4: “Communication, information and social participation” Improvement of communication including all stake holders. I f Information ti campaigns i and d active ti participation ti i ti off civil i il society i t Goal 5: “Research (management, technologies, applied engineering)” Implementation of research programs 3 National Inventory of Contaminated of Contaminated Sites‐SISCO Sites SISCO At this time 548 contaminated sites have been registered in SISCO 4 Main remediation projects More than 50 sites with a responsible party To date13 large scale contaminated t i t d sites it are in i remediation. have been remediated Finished: In the Period 2006 - 2010. 2010 Ex Talleres de FNM en Aguascalientes, Paseo Santa Lucia, IMMSA en Monterrey, IMMSA en SLP, In process: Ex refinería 18 de marzo, Arenque, La Venta, Ex azufrera panamericana II, (T i t (Texistepec), ) Pozo P D Dos Bocas, TAD Aguascalientes , Azufrera panamericana 1 Ex-tad in Aguascalientes Under study: Avalos Chihuahua Latin American network for brownfield remediation-ReLASC www.relasc.org ReLASC is a regional network initiative promoted and maintained by public institutions (Latin American Environmental Ministries). Its objective is the interchange and diffusion of information and knowledge about contaminated site remediation in Latin America. 6 Remediation of Railroad Works –City Park Tres Centurias” Centurias , Aguascalientes “Tres Extalleres de FNM The site is located in downtown off Aguascalientes A li t (Middle Mexico) Site area: 88 hectares hectares. Ortofoto digital de la Ciudad de Aguascalientes. Año 2000. Contamination with: TPH , heavy metals as (Lead) and smelter slag and other hazardous waste Several buildings with historical value were restored Fuente: Dr. Javier Llamas Universidad Autónoma de Aguascalientes, 2005 Remediation of Railroad Works –City Park Tres Centurias” Centurias , Aguascalientes “Tres Remediation works 2003 - 2007 Demolition Bioremediation In-situ confinement of low hazard wastes Building restoration Urban development plan In 2007 reopened to the public as Parque Tres Centurias In process of construction is a hospital and other service areas areas. Fuente: Dr. Javier Llamas Universidad Autónoma de Aguascalientes, 2005 Remediation of the Metal Smelter Fundidora II II”, Monterrey “Fundidora Fundidora de Monterrey 1 The site in august 2004 Predio de estudio 2 1 2 FOTO AÉREA 1978 Contamination: Smelter slag, heavy metals Fuente: Dr. Benjamín Limón UANL The site was remediated b t between2005 2005 -2007 2007 End of 2007 reopened to the public as Paseo Santa Lucia Garden area 146,300 m2 Building area 163,000 m2 Channel length aprox. 2.5 Km Fuente: Dr. Benjamín Limón UANL Conversion of the Refinery “18 de Marzo” into a 67 ha City Park-Mexico City • Remediation 2006 – 2010 • • Remediation area aprox. aprox 55 ha ha. Remediation volume aprox. 1.55 Mio. cubic meter of contaminated soil • Contaminants: gasoline, diesel, heavy oil in soil and ground water (shallow aquifer) • PEMEX and public universities executed the remediation with assistance of equipment suppliers • Public institutions involved: – – – – – IMP, COLPOS Universidad Autónoma de san Luis Potosí, Universidad Autónoma de Coahuila, Instituto Politécnico Nacional, Universidad Autónoma de Nuevo León Universidad Autónoma del Carmen, Instituto Tecnológico de Ciudad Madero Colegio de Postgraduados, CINVESTAV (IPN), Instituto Tecnológico Autónomo de Oaxaca Universidad Nacional Autónoma de México. Conversion of the Refinery “18 de Marzo” into a 60 ha City Park-Mexico City • • • • • • • Installation of 3,312 (3.5 m) extraction wells. Installation of 529 ( 8.0 m) injection wells Excavation of aprox. 0.75 Mio m3 of contaminated soil for bioremediation C Construction t ti off 10 dit ditches h ffor ffree phase extraction Construction of 22 ditches for ground water extraction Installation of 4 water treatment plants Aprox. 412,236 m3 ofground water treated Bicentenario Park Barriers and Obstacles • G Government t institutions i tit ti involved i l d have h to t improve i their th i managementt skills kill • Technical guidelines and standards for remediation have to be completed • The legal Th l l framework f k needs d to t b be consolidated lid t d with ith respectt to t sustainable t i bl soil use, sustainable city planning and the revitalization of inner city areas • procedures and g guidelines need to be improved p and Risk communication p consolidated • Cities must develop their own information system to provide the decision makers with solid information for sustainable land use and site revitalization • p in order to support pp remediation Financial mechanism have to be developed efforts Lessons Learned • Communication with the Community • • • • Federal investment in remediation projects pays off • • • • Community and resident participation is an important part of the decision making process in order to achieve acceptation of remediation solutions. In two pilot projects experiences were gained with risk communication, however the communication process is still not regulated in Mexico. Open communication channels increase project success. success Federal and state governments have financed mayor projects with aprox. aprox 90 Mio USD USD, which have created economic impulses around remediated sites. The benefits gained from improved living conditions for the population in mayor cities outweigh the remediation costs. Th idea The id off brownfield b fi ld remediation di ti has h settled ttl d down d in i Mexico. M i Many M abandoned b d d sites it require attention, however their remediation is a very good investment for the future. A secure and sound legal framework increases certainty and security among all stake holders • • Good regulation instruments have helped to create awareness and responsibility among polluters. International cooperation (with GIZ, Germany and RELASC) has been very successful to achieve specific knowledge and access to state of the art technologies Thank you y much! very ¡Gracias por su atención!