FINAL GW Report-Choloma.Doc PROJECT PARTICIPANTS
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GROUNDWATER RESOURCES MONITORING REPORT AND MANAGEMENT PLAN Choloma, Republic of Honduras, C. A. June 2002 Prepared for: Consultant: United States Agency for International Development Sub-Consultant: 2701 Prospect Park Drive Rancho Cordova, California 95670 Tel: (916) 444-0123 Fax: (916) 635-8805 www.brownandcaldwell.com July 25, 2002 Ing. Mauricio Cruz Chief Technical Officer Agencia de los Estados Unidos para el Desarrollo Internacional Frente a la Embajada Americana Avenida La Paz, Post Office Box 3453 Tegucigalpa, M.D.C., Honduras Subject: Groundwater Resources Monitoring Report and Management Plan, Choloma, Honduras, Contract No. 522-C-00-01-00287-00 Dear Ing. Cruz: In accordance with the above referenced contract, Brown and Caldwell is pleased to forward two copies of the English version of the Groundwater Resources Monitoring Report and Management Plan for Choloma, Honduras. The Spanish language version of this report is being submitted separately. Each report includes the electronic file of the report and the Water Resources Management System on two separate compact disks. The submittal of this report and the reports for Utila, La Lima, Villanueva, and Limón de la Cerca complete our work under this contract. We appreciate the opportunity to have been of service to USAID. If you have any questions, please do not hesitate to give me a call at (925) 210-2278. Sincerely, BROWN AND CALDWELL Jeff Nelson, P.E. Project Director P:\21000\21143\Report\Choloma Report\Final Cover Letter.doc Signatures of principal personnel responsible for development and execution of this report. Jeff Nelson, P.E. Project Director Horacio Juarez, P.E. Project Manager Paul Selsky, P.E. Phase 5 Report Preparation Manager Gregory L. Christians, P.G. Florida Professional Geologist #2219 Principle Geologist Milton Sagastume Local Project Coordinator - Honduras P:\21000\21143\Report\Choloma Report\FINAL GW Report-Choloma.doc PROJECT PARTICIPANTS United States Agency for International Development (USAID) Ing. Mauricio Cruz, Tegucigalpa, Honduras Ing. Carlos Flores (Retired September 2001), Tegucigalpa, Honduras Ing. Carlos Verdial, Tegucigalpa, Honduras United States Geological Survey (USGS) Wes Meehan, Tuscon, AZ Fondo Hondureño de Inversión Social (FHIS) Antonio Morales, Honduras, Project Supervisor Municipalidad de Choloma Osman Alvarenga, Jefe de Obras y Servicios Públicos Carlos Castillo, Inspector de Agua Potable y Alcantarillado Sandra Deras, Alcalde Armando Gale, Alcalde Anterior Julio Hernández, Gerente de Obras y Servicios Públicos Eddy Martínez, Jefe de Agua Potable y Alcantarillado Brown and Caldwell, Lead Consultant Voytek Bajsarowicz, Walnut Creek, CA, Principal-in-Charge Greg Christians, Nashville, TN, Conceptual Model Development Dana Downs, Phoenix, AZ, Groundwater Modeling Chris Gardner, Phoenix, AZ, Field Geologist Barbara Goodrich, Walnut Creek, CA, Drilling and Groundwater Monitoring Manager Bob Grace, Walnut Creek, CA, Project Advisor Brad Hart, Carson City, NV, Groundwater Modeling Horacio Juarez, El Paso, TX, Project Manager Jay Lucas, Sacramento, CA, Phase 2 Field Investigation Manager Amanda Mortl, Houston, TX, Field Geologist Jeff Nelson, Walnut Creek, CA, Project Director Jim Oliver, Phoenix, AZ, Phase 3 Groundwater Modeling Manager Karen Perez, El Paso, TX, Field Engineer Tom Peters, Denver, CO, Infrastructure Evaluation Ah’lai Phelps, Sacramento, CA, Report Preparation Allan Scott, Sacramento, CA, Phase 4 Database Manager Paul Selsky, Sacramento, CA, Phase 5 Report Preparation Manager Dean Wolcott, Baton Rouge, LA, Field Sampling Techniques Training P:\21000\21143\Report\Choloma Report\FINAL GW Report-Choloma.doc PROJECT PARTICIPANTS (Continued) Asesores Técnicos en Ingeniería y Ciencias Ambientales (ATICA) – Hydrogeology Subconsultant, San Pedro Sula, Honduras Lesbia Castellón, Water Quality Monitoring David Espinoza, Database Input Fanny Letona, Infrastructure Evaluation and Well Testing Marlon Pineda, Field Activities Supervisor Melvin Sagastume, Field Technician Milton Sagastume, Local Project Coordinator Darwin Vallecillo, Field Technician Hidro Sistemas Engineering and Drilling, S. de R. L. (Hidro Sistemas) – Well Drilling Subcontractor, San Pedro Sula, Honduras Servicios de Perforación, S. de R. L. de C. V. (SERPE) – Well Drilling Subcontractor, Tegucigalpa, Honduras “This is a draft report and is not intended to be a final representation of the work done or recommendations made by Brown and Caldwell. It should not be relied upon; consult the final report.” P:\21000\21143\Report\Choloma Report\FINAL GW Report-Choloma.doc TABLE OF CONTENTS LIST OF APPENDICES................................................................................................................. ii LIST OF TABLES.......................................................................................................................... iii LIST OF FIGURES........................................................................................................................ iii LIST OF ABBREVIATIONS......................................................................................................... iv GLOSSARY OF TERMS................................................................................................................ v REFERENCES .............................................................................................................................. vi EXECUTIVE SUMMARY........................................................................................................ ES-1 Background.................................................................................................................... ES-1 Description of Existing Water System and Water Demands........................................... ES-1 Groundwater Resources Evaluation............................................................................... ES-2 Water Resources Management System............................................................................ ES-3 Recommended Groundwater Resources Management Plan............................................ ES-3 1.0 INTRODUCTION ..........................................................................................................1-1 1.1 Project History and Objectives..............................................................................1-1 1.2 Contract and Scope of Work.................................................................................1-2 1.3 Report Organization..............................................................................................1-3 2.0 BACKGROUND .............................................................................................................2-1 2.1 Geographical Setting.............................................................................................2-1 2.2 Climate..................................................................................................................2-1 2.3 Geology and Soils.................................................................................................2-1 2.4 Hydrogeology........................................................................................................2-3 2.5 Land Use...............................................................................................................2-5 2.6 Wastewater Management.......................................................................................2-5 2.7 Regulatory Setting.................................................................................................2-5 3.0 DESCRIPTION OF EXISTING WATER SYSTEM AND WATER DEMANDS.........3-1 3.1 Water Supply System.............................................................................................3-1 3.1.1 Service Area..............................................................................................3-1 3.1.1.1 North Service Area........................................................................3-1 3.1.1.2 Central Service Area......................................................................3-3 3.1.1.3 Independent Systems....................................................................3-4 3.1.1.4 South Service Area........................................................................3-5 3.1.2 Municipal Water Supply Wells...................................................................3-5 3.1.3 Non-Municipal and Private Water Supply Wells........................................3-6 3.1.4 Water Storage Facilities. ..........................................................................3-10 3.1.5 Piping System..........................................................................................3-11 3.2 Historical and Projected Water Demands............................................................3-11 3.2.1 Demographics.........................................................................................3-11 3.2.2 Historical Water Use...............................................................................3-13 3.2.2.1 Lost and Unaccounted-for Water................................................3-14 3.2.3 Unit Water Use.......................................................................................3-14 3.2.4 Projected Water Demands.......................................................................3-14 i P:\21000\21143\Report\Choloma Report\FINAL GW Report-Choloma.doc TABLE OF CONTENTS (continued) 4.0 GROUNDWATER RESOURCES EVALUATION.......................................................4-1 4.1 Conceptual Hydrogeologic