Évaluation des ressources en eau d'Haïti

WATER RESOURCES ASSESSMENT OF HAITI August 1999 Haiti Dominican Republic US Army Corps of Engineers Mobile District and Topographic Engineering Center  Water Resources Assessment of Haiti Executive Summary Haiti is one of the most densely populated countries in the world and one of the poorest in the Western Hemisphere. The population has already outstripped domestic food production, and it is estimated that the population will be 8 million by the year 2000. One-third of the population lives in the Département de l’Ouest where Port-au-Prince is located. Heavy migration from rural areas to towns and cities occurring over the past decade has adversely affected the distribution of the water supply. Access to water and sanitation facilities is inadequate, contributing to poor living conditions, disease, and a high mortality rate. In 1990 only 39 percent of the 5.9 million residents had adequate access to water and only 24 percent to sanitation. The lack of potable water for basic human needs is one of the most critical problems in the country. Given the rainfall and abundant water resources, there is adequate water to meet the water demands, but proper management to develop and maintain the water supply requirements is lacking. However, the water supply sector is undergoing complete transformation. Although currently there is no comprehensive water policy, progress is being made towards establishing a national water resources management policy. Numerous agencies and non-government organizations (NGO’s) are working to provide water, many of which conduct their missions with little or no coordination with other agencies, which creates duplication of work and inefficient use of resources. The Reform Unit for Potable Water (URSEP) is a special agency created recently to help organize the efforts of the various agencies in the water sector. Pollution of the water resources is a significant problem. Contamination of surface water and shallow ground water aquifers are prevalent throughout the country. Domestic wastewater and agricultural runoff cause biological contamination of water near and downstream of populated places. Currently there is no public system for the collection and treatment of wastewater. Indications are that contamination is increasing rapidly, especially for surface water. The amount of water pollution is important because much of the population still uses surface water and ground water from shallow aquifers for their water supply. Deforestation, with its devastating environmental consequences, is a serious problem in Haiti. Lac de Peligre, the only major reservoir in the country, has lost 30 percent of its storage capacity due to sedimentation caused by deforestation. Deforestation accelerates soil erosion, decreases the amount of recharge to aquifers by increasing surface runoff, damages barrier reefs and ecosystems, increases turbidity which affects mangroves, decreases agricultural production, and causes problems and increased maintenance of water systems and impoundments. Hydrologic data is lacking also. As of April 1998, only 3 of the 35 gaging stations and 25 percent of the hydrometeorological gages were functional. The technical information obtained from such a network is critical for effective water resources management. If the recommendations for watershed management are adopted, if progress is made toward reducing the untreated waste entering the nation’s waterways, and if a national water resources management policy is implemented, positive, immediate, and long-term benefits could be realized. i  Water Resources Assessment of Haiti Preface In 1997 the U.S. Southern Command Engineer's Office commissioned the U.S. Army Corps of Engineers District in Mobile, Alabama, and the U.S. Army Corps of Engineers Topographic Engineering Center in Alexandria, Virginia, to conduct a water resources assessment of Haiti. This assessment has two objectives. One objective is to provide an analysis of the existing water resources and identify some opportunities available to the Government of Haiti to maximize the use of these resources. The other objective is to provide Haiti and U.S. military planners with accurate information for planning various joint military training exercises and humanitarian civic assistance engineer exercises. A team consisting of the undersigned water resources specialists from the U.S. Army Corps of Engineers Mobile District and the Topographic Engineering Center conducted the water resources investigations for this report in 1998. Robert B. Knowles James O. Buckalew Hydrologist Water Resources Engineer Topographic Engineering Center Mobile District Telephone: 703-428-6895 Telephone: 251-694-3863 Facsimile: 703-428-6991 Facsimile: 251-690-2727 Internet: laura.c.dwyer@usace.army.mil Internet:james.o.buckalew@sam.usace.army.mil Bruce Markley Laura Waite Roebuck Hydrologist Geologist and Report Manager Topographic Engineering Center Mobile District Telephone: 703-428-7821 Telephone: 251-690-3480 Facsimile: 703-428-6991 Facsimile: 251-690-2674 Internet: bruce.l.markley@usace.army.mil Internet:laura.w.roebuck@sam.usace.army.mi l iii  Water Resources Assessment of Haiti Contents Executive Summary .................................................................................................................... i Preface ....................................................................................................................................... iii Contents .....................................................................................................................................iv List of Acronyms and Abbreviations .......................................................................................... vii List of Place Names ...................................................................................................................ix I. Introduction ................................................................................................................................. 1 II. Country Profile ........................................................................................................................... 2 A. Geography ............................................................................................................................. 2 B. Population and Social Impacts............................................................................................... 2 C. Economy................................................................................................................................ 3 D. Flood Control ......................................................................................................................... 3 E. Legislative Framework ........................................................................................................... 4 III. Current Uses of Water Resources ............................................................................................ 4 A. Water Supply ......................................................................................................................... 4 1. Domestic Uses and Needs .............................................................................................. 6 2. Industrial/Commercial Uses and Needs .......................................................................... 9 3. Agricultural Uses and Needs ........................................................................................... 9 B. Hydropower.......................................................................................................................... 10 C. Stream Gage Network ......................................................................................................... 10 D. Waterway Transportation..................................................................................................... 11 A. Surface Water Resources.................................................................................................... 11 1. Precipitation and Climate............................................................................................... 11 2. Rivers and Basins.......................................................................................................... 12 3. Lakes and Swamps ....................................................................................................... 13 4. Deforestation Effects ..................................................................................................... 14 B. Ground Water Resources .................................................................................................... 14 1. Aquifer Definition and Characteristics ........................................................................... 15 2. Haiti Hydrogeology ........................................................................................................ 16 C. Water Quality ....................................................................................................................... 17 1. Surface Water................................................................................................................ 17 2. Ground Water ................................................................................................................ 18 3. Domestic Waste Disposal.............................................................................................. 18 A. Introduction .......................................................................................................................... 18 B. Water Conditions by Map Unit ............................................................................................. 19 C. Water Conditions by Department......................................................................................... 20 iv  Water Resources Assessment of Haiti Contents, continued Département de l'Artibonite.......................................................................................................... 21 Département du Centre ............................................................................................................... 22 Département de la Grand’Anse ................................................................................................... 23 Département du Nord .................................................................................................................. 24 Département du Nord-Est ............................................................................................................ 25 Département du Nord-Ouest........................................................................................................ 26 Département de l’Ouest ............................................................................................................... 27 Département du Sud.................................................................................................................... 29 Département du Sud-Est ............................................................................................................. 30 VI. Recommendations .............................................................................................................. 31 A. General ................................................................................................................................ 31 B. Watershed Protection and Management ............................................................................. 31 C. Troop Exercise Opportunities .............................................................................................. 31 D. Water Quality and Supply Improvement .............................................................................. 32 VII. Summary ............................................................................................................................... 32 Endnotes...................................................................................................................................... 33 Bibliography ................................................................................................................................. 36 Tables Table 1. Population Distribution ....................................................................................................2 Table 2. Water Consumption by Hydrogeographic Region (Mm3/yr) ...........................................4 Table 3. Water Supply in Port-au-Prince ......................................................................................7 Table 4. Water Supply in Secondary Villages...............................................................................8 Table 5. Irrigation by Hydrogeographic Region ..........................................................................10 Table 6. Hydropower Plants, 1996..............................................................................................10 Table 7. Major Drainage Basins..................................................................................................13 Figures Figure 1. County Map ................................................................................................................ xiv Figure 2. Vicinity Map ...................................................................................................................2 Figure 3. Hydrographic Regions ................................................................................................... 5 Appendix A. List of Officials Consulted and List of Agencies Contacted List of Officials Consulted A-1 List of Agencies Contacted A-2 Appendix B. Glossary Glossary...............................................................................................................................B-1 v  Water Resources Assessment of Haiti Contents, continued Appendix C. Surface Water and Ground Water Resources Tables Table C-1. Surface Water Resources ................................................................................. C-1 Table C-2. Ground Water Resources ................................................................................. C-8 Figures Figure C-1. Surface Water Resources.............................................................................. C-17 Figure C-2. Ground Water Resources .............................................................................. C-19 vi  Water Resources Assessment of Haiti List of Acronyms and Abbreviations Acronyms ASSODLO Association Haitienne pour la Maîtrise de l'Eau en Milieu Rural (Haitian Association for Water Control in Rural Areas) CAMEP Centrale Autonome Metropolitaine d'Eau Potable (Independent Metropolitan Water Company) CARE Cooperative for American Relief to Everywhere CREPA Centre Regional pour l'Eau Potable et l'Assainissement (Regional Center for Potable Water and Sanitation) ED'H Electricité d'Haiti (Haitian Electricity Company) GDP Gross domestic product GNP Gross national product IDB Inter-American Development Bank IHSI Institut Haitien de Statistiques et d'Informatique (Haitian Institute for Statistics and Information Technology) MARNDR Ministère de l'Agriculture, des Ressources Naturelles et du Développement Rural (Ministry of Agriculture, Natural Resources, and Rural Development) MDE Ministère de l'Environnement (Ministry of the Environment) MSPP Ministère de la Santé Publique et de la Population (Ministry of Public Health and Population) MTPTC Ministère des Travaux Publiques, Transports et Communications (Ministry of Public Works, Transportation, and Communication) NGO Non-government organization PAHO Pan American Health Organization PNUD (also UNDP) Programme des Nations Unies pour le Développement (United Nations Development Program) POCHEP Poste Communautaire d'Hygiene et d'Eau Potable (Community Water Supply and Sanitation Post) SBC Southern Baptist Convention SNEP Service National d'Eau Potable (National Water Supply Service) SNRE Service National de Ressources en Eau (National Service for Water Resources) UMEPA National Office for Drinking Water and Sanitation (French name not available) UNDP (also PNUD) United Nations Development Program (Programme des Nations Unies pour le Développement) UNICEF United Nations Children's Fund URSEP Unité de Reformé du Secteur en Eau Potable (Reform Unit for Potable Water) under the Ministry of Public Works USACE U.S. Army Corps of Engineers (referred to in text as Corps) USAID U.S. Agency for International Development USSOUTHCOM United States Southern Command WHO World Health Organization vii  Water Resources Assessment of Haiti Abbreviations °C degrees Celsius °F degrees Fahrenheit Ca calcium CaCO3 calcium carbonate Cl chloride Fe iron gal/min gallons per minute km2 square kilometers L/min liters per minute m3/s cubic meters per second Mg magnesium mg/L milligrams per liter mm millimeters Mm3 million cubic meters Mm3/yr million cubic meters per year MW megawatts NaCl sodium chloride pH potential of hydrogen PVC polyvinyl chloride SO4 sulfate TDS total dissolved solids TSS total suspended solids viii  Water Resources Assessment of Haiti List of Place Names Place Name Geographic Coordinates Acul, Baie de l’ ..................................................................................................... 1944N07220W Acul, Rivière de l’ ................................................................................................. 1807N07351W Amont Barrage..................................................................................................... 1828N07233W Amont Bassin General ......................................................................................... 1830N07212W Anse à Galets ...................................................................................................... 1850N07252W Anse-à-Pitres ....................................................................................................... 1803N07145W Anse Rouge Rivière ............................................................................................. 1939N07303W Artibonite Basin.................................................................................................... 1905N07200W Artibonite, Département de l’ ............................................................................... 1920N07230W Artibonite estuary ................................................................................................. 1915N07247W Artibonite, Plaine de l’ .......................................................................................... 1915N07235W Artibonite, Rivière de l’ ......................................................................................... 1915N07247W Artibonite, Rivière de l’ (delta).............................................................................. 1915N07247W Artibonite, Rivière de l’ (middle and upper reaches) ............................................ 1850N07206W Aufilier ................................................................................................................. 1928N07239W Bainet, Rivière de................................................................................................. 1811N07245W Baradères, Rivière des ........................................................................................ 1830N07340W Barres, Rivière des .............................................................................................. 1956N07242W Blanche, Rivière................................................................................................... 1939N07227W Bois Pin................................................................................................................ 1852N07153W Bombardopolis, Plateau de ................................................................................. 1945N07320W Bombardopolis-Gonaïves Zone ........................................................................... 1940N07300W Bouyaha, Rivière ................................................................................................. 1910N07204W Brodequin, Rivière .............................................................................................. 1815N07325W Brossard, Rivière ................................................................................................ 1830N07321W Caïman, Trou ....................................................................................................... 1840N07209W Camp Perrin......................................................................................................... 1819N07352W Canot, Rivière ...................................................................................................... 1910N07204W Cap-Haïtien Zone................................................................................................. 1945N07212W Castel .................................................................................................................. 1819N07235W Cavaillon .............................................................................................................. 1818N07339W Cavaillon Basin .................................................................................................... 1820N07340W Cavaillon, Rivière de ............................................................................................ 1814N07341W Cayes-Jacmel-Anse à Pitres Zone ...................................................................... 1817N07205W Cayes, Plaine des ................................................................................................ 1814N07346W Cayes Zone.......................................................................................................... 1814N07350W Centre, Département du ...................................................................................... 1900N07200W Chaîne des Matheux............................................................................................ 1855N07230W ix  Water Resources Assessment of Haiti List of Place Names, continued Place Name Geographic Coordinates Charpentier .......................................................................................................... 1813N07345W Colombier, Rivière ............................................................................................... 1934N07256W Corail-Anse à Veau Zone..................................................................................... 1830N07345W Côtes de Fer ........................................................................................................ 1811N07300W Côtes de Fer-Bainet Zone.................................................................................... 1815N07250W Côtes de Fer, Rivière des .................................................................................... 1811N07300W Coupe à l’Inde ..................................................................................................... 1917N07231W Cul-de-Sac, Plaine du .......................................................................................... 1836N07210W Cul-de-Sac Zone.................................................................................................. 1836N07210W Dame Marie, Rivière de ....................................................................................... 1834N07425W Dieubonne, Source .............................................................................................. 1924N07205W Duclos .................................................................................................................. 1917N07239W Estère Basin......................................................................................................... 1915N07230W Estère, Rivière de l’.............................................................................................. 1924N07242W Fer à Cheval, Rivière de ...................................................................................... 1850N07206W Fond Pomme ...................................................................................................... 1947N07320W Fond Verrettes Zone ............................................................................................ 1853N07153W Fort Libertè........................................................................................................... 1940N07150W Galois (Haut de Cap), Rivière .............................................................................. 1945N07213W Gauche, Rivière ................................................................................................... 1815N07233W Gôave, Grand Rivière .......................................................................................... 1826N07246W Gonaïves.............................................................................................................. 1927N07241W Gonaïves, Plaine du............................................................................................. 1930N07240W Gonâve, Golfe de la ............................................................................................. 1900N07330W Gonâve, Île de la.................................................................................................. 1851N07303W Gonave Island Zone............................................................................................. 1851N07303W Grand’Anse Basin ................................................................................................ 1830N07415W Grand’Anse, Département de la .......................................................................... 1830N07340W Grand’Anse, Rivière............................................................................................. 1838N07406W Grande Cayemite................................................................................................. 1837N07345W Grande Rivière de Jacmel Basin ......................................................................... 1820N07235W Grande Rivière de Nippes Basin.......................................................................... 1829N07318W Grande Rivière du Nord Basin ............................................................................. 1930N07207W Grise, Rivière (Grande Rivière du Cul-de-Sac).................................................... 1838N07221W Guayamouc, Rivière ............................................................................................ 1859N07152W Hinche.................................................................................................................. 1909N07201W Islet, Rivière de l’.................................................................................................. 1811N07344W Jacmel ................................................................................................................. 1814N07232W x  Water Resources Assessment of Haiti List of Place Names, continued Place Name Geographic Coordinates Jacmel, Grande Rivière de .................................................................................. 1814N07233W Jean Rabel, Rivière de......................................................................................... 1954N07312W Jeanton ................................................................................................................ 1904N07243W Jérémie ................................................................................................................ 1839N07407W Jérémie-Les Irois Zone ........................................................................................ 1840N07415W Jet d’Eau, Source................................................................................................. 1817N07224W La Gorge .............................................................................................................. 1830N07207W Lamartinière ........................................................................................................ 1836N07212W La Quinte Basin ................................................................................................... 1930N07230W La Quinte, Rivière ................................................................................................ 1924N07241W La Rue ................................................................................................................ 1943N07211W Léogâne-Carrefour Zone ..................................................................................... 1830N07230W Les Cayes ........................................................................................................... 1812N07345W Les Trois Rivières ............................................................................................... 1957N07252W Les Trois Rivières (middle reaches) .................................................................... 1939N07239W Les Trois Rivières (upper reaches)...................................................................... 1936N07228W Limbé Basin ......................................................................................................... 1940N07225W Limbé, Rivière du ................................................................................................. 1948N07224W Limonade-Ouanaminthe Zone ............................................................................. 1940N07150W Lociane, Rivière ................................................................................................... 1915N07250W Loma de Cabrere, Batholite ................................................................................. 1930N07200W Maissade.............................................................................................................. 1910N07208W Mami, Source ...................................................................................................... 1823N07321W Marigot, Rivière.................................................................................................... 1814N07218W Marion, Rivière..................................................................................................... 1940N07150W Massacre, Rivière du (or Rio Dajabon)................................................................ 1943N07146W Miel Source .......................................................................................................... 1823N07155W Miragoâne, de Étang............................................................................................ 1824N07303W Mirebalais............................................................................................................. 1850N07206W Môle Saint Nicolas-Moustiques Zone .................................................................. 1950N07308W Momance, Rivière ................................................................................................ 1834N07234W Mombin Rivière .................................................................................................... 1815N07336W Monnery .............................................................................................................. 1830N07332W Montagnes Noires, Massif des ............................................................................ 1855N07205W Montrouis, Rivière ................................................................................................ 1857N07243W Moustiques, Rivière ............................................................................................. 1955N07257W Nan Ruche .......................................................................................................... 1945N07301W Nan Tinte ............................................................................................................ 1950N07306W xi  Water Resources Assessment of Haiti List of Place Names, continued Place Name Geographic Coordinates Nippes, Grande Rivière de................................................................................... 1829N07318W Nord, Département du ........................................................................................ 1936N07218W Nord-Est, Département du .................................................................................. 1932N07142W Nord, Grande Rivière du ...................................................................................... 1945N07209W Nord-Ouest, Département du............................................................................... 1945N07305W Nord, Plaine du .................................................................................................... 1940N07210W Ouanaminthe ....................................................................................................... 1933N07144W Ouest, Département de l’ ..................................................................................... 1840N07220W Passe Ranja ........................................................................................................ 1836N07408W Passe Laraque..................................................................................................... 1836N07405W Paulin Lacoine ..................................................................................................... 1956N07256W Pédernales, Rivière.............................................................................................. 1802N07144W Péligre, Lac de (Lake Peligre).............................................................................. 1852N07156W Pérédo ................................................................................................................. 1815N07218W Pétion................................................................................................................... 1847N07202W Petit Rivière de Nippes-Grand Gôave Zone ........................................................ 1924N07303W Petit Bourg du Borgne.......................................................................................... 1949N07234W Phaéton ............................................................................................................... 1941N07154W Pition Remard ...................................................................................................... 1818N07255W Plaisance ............................................................................................................. 1936N07228W Plateau Centrale .................................................................................................. 1915N07200W Pont de l'Estère.................................................................................................... 1919N07237W Pont Gros Morne.................................................................................................. 1939N07239W Pont Sondé .......................................................................................................... 1909N07237W Pont Parois .......................................................................................................... 1928N07200W Port Margot, Rivière de ........................................................................................ 1949N07226W Port-au-Prince...................................................................................................... 1832N07220W Port-de-Paix ......................................................................................................... 1957N07250W Port-de-Paix-Port Margot Zone............................................................................ 1950N07235W Quartier Morin ...................................................................................................... 1942N07209W Roche à l’Inde ...................................................................................................... 1939N07225W Roseaux, Rivière des........................................................................................... 1836N07402W Roseaux-Voldrogue Zone .................................................................................... 1830N07405W Rouffer Quinte...................................................................................................... 1922N07231W Saint Louis du Sud-Aquin Zone ........................................................................... 1820N07320W Saint-Marc-Duvalierville Zone.............................................................................. 1850N07230W Saint-Marc, Rivière de ......................................................................................... 1907N07242W Saint-Raphaël ...................................................................................................... 1926N07212W xii  Water Resources Assessment of Haiti List of Place Names, continued Place Name Geographic Coordinates Saumâtre, Étang .................................................................................................. 1835N07200W Saut d’Eau .......................................................................................................... 1849N07212W Selle, Massif de la................................................................................................ 1821N07217W Soliette, Rivière.................................................................................................... 1830N07151W Source Sable ....................................................................................................... 1836N07204W Sud, Département du........................................................................................... 1815N07340W Sud-Est, Département du ................................................................................... 1818N07224W Sud, Ravine du .................................................................................................... 1811N07345W Tiburon, Rivière de............................................................................................... 1820N07424W Tiburon-St. Jean Zone ......................................................................................... 1815N07410W Torbeck ................................................................................................................ 1810N07349W Torbeck, Rivière de.............................................................................................. 1810N07349W Torcelle, Rivière ................................................................................................... 1843N07227W Tortue, Île de la .................................................................................................... 2004N07249W Tortue Island Zone............................................................................................... 2004N07249W Trois Rivières Basin ............................................................................................. 1945N07240W Vache, Île à ......................................................................................................... 1804N07338W Voldrogue, Rivière de la ...................................................................................... 1837N07405W Wallondry ............................................................................................................ 1925N07213W Geographic coordinates for place names and primary features are in degrees and minutes of latitude and longitude. Latitude extends from 0 degrees at the Equator to 90 degrees north or south at the poles. Longitude extends from 0 degrees at the meridian established at Greenwich, England, to 180 degrees east or west established in the Pacific Ocean near the International Date Line. Geographic coordinates list latitude first for the Northern (N) or Southern (S) Hemisphere and longitude second for the Eastern (E) or Western (W) Hemisphere. For example: Acul, Baie de l'......................................................................1944N07220W Geographic coordinates for Baie de l’Acul that are given as 1944N07220W equal 19°44' N 72°20' W and can be written as a latitude of 19 degrees and 44 minutes north and a longitude of 72 degrees and 20 minutes west. Coordinates are approximate. Geographic coordinates are sufficiently accurate for locating features on the country scale map. Geographic coordinates for rivers are generally at the river mouth. xiii  Water Resources Assessment of Haiti Figure 1. County Map xiv  Water Resources Assessment of Haiti I. Introduction Water nourishes and sustains all living things. At least 400 million people in the world live in regions with severe water shortages. By the year 2050, it is expected to be 4 billion people. The projected short supply of usable potable water could result in the most devastating natural disaster since history has been accurately recorded, unless something is done to stop it. There is a direct relationship between the abundance of water, population density, and quality of life. A plentiful supply of water is one of the most important factors in the development of modern societies. The two major issues in the development of water resources are quantity and quality. Availability of water for cleansing is directly related to the control and elimination of disease. The convenience of water improves the quality of life.i In developing countries, water use drops from 40 liters per day per person when water is supplied to the residence, to 15 liters per day per person if the source is 200 meters away. If the water source is more than 1,000 meters away, water use drops to less than 7 liters per day per person.ii As well as being in abundant supply, the available water must have specific quality characteristics, such as the low concentration of total dissolved solids (TDS). The TDS concentration of water affects the domestic, industrial, commercial, and agricultural uses of water. The natural nontoxic constituents of water are not a major deterrent to domestic use until the TDS concentration exceeds 1,000 milligrams per liter. As TDS values increase over 1,000 milligrams per liter, the usefulness of water for commercial, industrial, and agricultural uses decreases. In addition to TDS concentrations, other quality factors affect water. These factors include the amount of disease-causing organisms, the presence of manufactured chemical compounds and trace metals, and certain types of natural ions that can be harmful at higher concentrations. The purpose of this assessment is to document the general overall water resources situation in Haiti. This work involves describing the existing major water resources in the country, identifying special water resources needs and opportunities, documenting ongoing and planned water resources development activities, and suggesting practicable approaches to short- and long- term water resources development. This assessment resulted from an in-country information- gathering trip and from information obtained in the United States on the part of four water resources professionals. The scope was confined to a “professional opinion,” given the size of the country and the host of technical reports available on the various aspects of Haiti’s water resources. This information can be used to support current and potential future investments in managing the country’s water resources and to assist military planners during troop engineering exercise and theater engagement planning. The surface water and ground water graphics, complemented by the tables in appendix C, should be useful to water planners as overviews of available water resources on a country scale. The surface water graphic divides the country into surface water regions, based on water quantities available. The ground water graphic divides the country into regions with similar ground water characteristics. In addition to assisting the military planner, this assessment can aid the host nation by highlighting its critical need areas, which in turn serves to support potential water resources development, preservation, and enhancement funding programs. Highlighted problems are the lack of access to water supply by much of the population, the density of the population and the high mortality rate, the lack of wastewater treatment, the devastating effects of deforestation on the water resources, and the lack of hydrologic data. Watershed management plans should be enacted to control deforestation and to manage water resources. 1  Water Resources Assessment of Haiti Responsibility for overseeing the water resources of Haiti is shared by several government agencies and institutions. The U.S. Army Corps of Engineers assessment team met and consulted with the organizations most influential in deciding priorities and setting goals for the water resources (see appendix A). Most of these agencies conduct their missions with little or no coordination with other agencies, which creates duplication of work and inefficient use of resources. II. Country Profile A. Geography Haiti shares the island of Hispaniola, the second largest island in the Caribbean Sea, with the Dominican Republic. With its 27,700 square kilometers (10,714 square miles) of territory, Haiti is similar in size to the U.S. state of Maryland and includes the islands of Gonâve, Tortue, Vache, and Grande Cayemite. Five mountain ranges (Massif du Nord, Massif des Montagnes Noires, Chaîne des Matheux, Massif de la Hotte, and Massif de la Selle) cover 75 percent of the land surface. The highest peak, Morne de la Selle, rises to an elevation of 2,680 meters (8,790 feet). The remaining land area consists of four major flatlands: (1) the Plaine du Nord between the Atlantic Ocean and the Massif du Nord; (2) the Plaine de l'Artibonite to the north of Chaîne des Matheux; (3) the Plaine du Cul-de-Sac Figure 2. Vicinity Map between the Chaîne des Matheux and the Massif de la Selle; and (4) the Plateau Centrale to the east of the Montagnes Noires. See figures 1 and 2 for general geographic information. B. Population and Social Impacts Haiti is the poorest country in the Western Hemisphere and is one of the most densely populated countries in the world. Deteriorating living conditions in rural areas have caused a population shift to the urban areas, accelerating urbanization. Over one-third of the total population (34.7 percent) lives in the Département de l'Ouest, where the nation's capital Port- au-Prince is located. Over 25 percent of the total population of Haiti is in Port-au-Prince, with a population of just less than 2 million. Despite a relatively low population growth rate, largely a consequence of widespread emigration, the population has outstripped domestic food production.iii In addition, rapid urbanization has adversely affected the distribution of the water supply. 2  Water Resources Assessment of Haiti The last census was conducted in 1982. Population projections, developed by the Institut Haitien de Statistiques et d’Informatique (IHSI), in conjunction with the Latin American Demographic Center, estimate the population at about 7,200,000 as of 1995. The population of the departments, based on the 1995 estimates, is provided in table 1. With an anticipated population growth rate of about 2 percent per year, projections indicate that the population will reach 8 million by the year 2000. As of 1995, with an average of 260 inhabitants per square kilometer, Haiti has one of the highest population densities of all Latin American countries. The density of population per unit of cultivated area, figured at 885 inhabitants per square kilometer, dramatically underscores the heavy population pressure on land in the country. Table 1. Population Distribution Approximate Area Department Population Capital (km2) Artibonite 1,013,779 Gonaïves 4,530 Centre 490,790 Hinche 3,700 Grand'Anse 641,399 Jeremie 3,335 Nord 759,318 Cap-Haïtien 2,045 Nord-Est 248,764 Fort-Liberté 1,750 Nord-Ouest 420,971 Port-de-Paix 2,525 Ouest 2,494,862 Port-au-Prince 4,650 Sud 653,398 Les Cayes 2,950 Sud-Est 457,013 Jacmel 2,215 Total 7,180,294 27,700 Source: IHSI estimates for 1995 and "Haiti en chiffres" (Haiti Statistics) IHSI, January 1996. Over the past 10 years, heavy migration from rural areas to towns and cities has seriously affected the housing situation. This is particularly noticeable in the metropolitan area of Port-au- Prince where the rapid population increase within this limited geographical area has caused a decline in the living conditions of the poor. There has been a sizable increase in the household occupancy rate. The average size of the household unit is generally presumed to be five persons. However, this figure is clearly higher in the metropolitan area, where dwelling units in Bidonvilles or shantytowns are known for their cramped quarters. Such overcrowding is conducive to the transmission of airborne diseases such as influenza, tuberculosis, and meningitis.iv Haiti has one of the highest mortality rates in the Western Hemisphere. This problem has increased due to the country's socioeconomic and political crises. A life expectancy of 55 years is relatively short when compared to that of 67 years for Latin America as a whole.v Rapid urbanization has adversely affected the distribution of water supply. Access to water and sanitation facilities is generally inadequate. In 1990 only 39 percent of the 5.9 million residents had adequate access to water and only 24 percent to sanitation facilities. The lack of access to safe water supply contributes to poor health and hygiene. Infectious and parasitic diseases, often spread through unsafe water, are the leading causes of morbidity and mortality in Haiti.vi In the northern part of the capital Port-au-Prince, where 300,000 people live in a 5-square- kilometer area, rainwater mixed with sewage frequently floods homes during the wet season. Epidemics including malaria, typhoid, chronic diarrhea, and intestinal infections are caused by water contaminated by rubbish and fecal matter. Infants are especially vulnerable to these 2  Water Resources Assessment of Haiti diseases, accounting for the death of up to one-third of all children before the age of five.vii The Pan American Health Organization (PAHO) reported in 1980, that more than half of all recorded deaths were linked to gastrointestinal diseases that are primarily waterborne. In the arid northwest, the lack of safe water and the fact that people drink brackish water have dire health consequences. In this area, as many as three quarters of the population suffer from intestinal parasites and hypertension (high blood pressure) caused by excessive salt consumption.viii C. Economy The agricultural sector of the economy, consisting mainly of small-scale subsistence, employs about 66 percent of the labor force and accounts for about 35 percent of the gross domestic product (GDP) and about 27 percent of total exports. In 1990 the chief agricultural export products were coffee, rope fiber, sugar, and cocoa. The other primary sectors, along with the percentages of the labor force they employ, are the services industry (25 percent) and the manufacturing industry (9 percent). The services and manufacturing industries account for about 42 percent and 23 percent of the GDP, respectively. About 75 percent of the population lives in abject poverty. Based on 1997 estimates, the unemployment rate in a work force of approximately 3.6 million is about 70 percent.ix D. Flood Control Most of the major cities are along the coast and are surrounded by steep, often barren, hills. The combination of scarce vegetation on surrounding hillsides and lack of storm water drainage systems produces serious flooding, often resulting in significant loss of human lives and serious property damage. Between 1992 and April 1998, there were 12 serious flood events which resulted in loss of life and severe loss of property (exact figures are unavailable). The only event during this time period for which data is available was tropical storm Gordon that struck in November 1994 destroying over 3,500 residences and killing over 800 people near Port-au- Prince and Jacmel.x In September 1998, Hurricane Georges struck Haiti. Preliminary reports indicate that the storm killed at least 173 people and left over 18,000 people homeless. Crop losses were estimated at 60 to 80 percent. Tens of thousands of cattle and other livestock were lost to the storm. These losses represent a staggering blow to a country where agriculture provides one-third of the gross national product (GNP). The loss of these crops and livestock will result in short-term food shortages. Flooding contaminated the water supply, and the lack of uncontaminated water is expected to produce deadly waterborne diseases, such as cholera and dengue fever. The storm severely damaged the country’s fragile communication, transportation, and building infrastructures.xi Within the Port-au-Prince area, uncontrolled housing construction to accommodate the growing population has resulted in the construction of large numbers of dwellings in flood plains. This situation, along with generally poor materials and construction techniques, exposes many residents to serious danger when floods occur. In addition, the overall lack of domestic waste disposal methods increases biological contamination of the waterways during flood events. 3  Water Resources Assessment of Haiti E. Legislative Framework Haiti does not have a comprehensive water policy. Current laws that address water issues are fragmented, with authorities spread among various agencies. However, in recent years, the Ministère des Travaux Publiques, Transports et Communications (MTPTC) recognized the need for comprehensive national water management with the creation of the Unité de Reformé du Secteur en Eau Potable (URSEP). URSEP is currently working with the Inter-American Development Bank (IDB) to establish a new drinking water policy. Upon completion of this effort, plans call for the development of a national sanitation policy to include new laws and the creation of a regulatory agency. III. Current Uses of Water Resources A. Water Supply Water supply is a very serious problem, although the country has an average annual rainfall of 1,400 millimeters. The uneven distribution of rainfall and population, along with poor overall management of the available water resources, are the major causes of the water supply problem.xii Annually, some areas receive only 400 millimeters of rainfall, and others receive as much as 3,600 millimeters. Only about 10 percent of the total available water in the country is used, and of this, 90 percent is used for irrigation and 10 percent for domestic purposes.xiii Water consumption by region is shown in table 2. Table 2. Water Consumption by Hydrogeographic Region (Mm3/yr) Region Water Total Total Irrigation Other (see Fig. 3) Supply Consumed Available Centre-Nord 8.0 410.0 - 418.0 3,800 Centre-Sud 80.0 333.5 4.0 417.5 1,100 Nord 5.0 8.4 0.4 13.8 1,000 Nord-Ouest 11.0 161.0 - 172.0 1,200 Sud-Est 1.5 69.0 - 70.5 800 Sud-Ouest 5.5 187.0 .25 192.75 4,700 Total 111.0 1,168.9 4.65 1,284.55 12,600 Source: Organisation Panaméricaine de la Santé/Organisation Mondiale de la Santé, Comité National Interministeriel, Analyse du Secteur Eau Potable et Assainissement, Agenda 21, May 1996, p. 83. 4  Water Resources Assessment of Haiti Figure 3. Hydrographic Regions Water supply is provided by three Government agencies, several non-government organizations (NGO's), along with various private and religious relief groups. The two leading Government agencies, the Centrale Autonome Metropolitaine d'Eau Potable (CAMEP) and the Service National d'Eau Potable (SNEP) are within MTPTC. The third agency, the Poste Communautaire d'Hygiene et d'Eau Potable (POCHEP), is within the Ministère de la Santé Publique et de la Population (MSPP). CAMEP is responsible for water supply to Port-au-Prince and surrounding areas. SNEP is responsible for water supply to the smaller cities and rural areas, while POCHEP concentrates on rural areas with populations of less than 2,000. In 1996 the MTPTC created a unit, URSEP, to reform the water supply sector. Issues under consideration by URSEP include decentralization of the water services and privatization of some water supply sectors. Most of the funding for this initiative is provided by the IDB. Under the current system, development of water supply systems is accomplished by several agencies with very little coordination. However, the need for adequate potable water is of such great magnitude that development opportunities are available for all agencies and organizations. The limiting factor is the lack of financial resources, and the need to avoid duplication of effort is essential in maximizing the return of these limited resources. Many organizations are working in-country to provide water to the urban and rural populations. These organizations range from international donor agencies such as the Cooperative for American Relief to Everywhere (CARE) and the United Nations Development Program (UNDP) to smaller private organizations like the U.S.-based Southern Baptist Convention (SBC). The international organizations work primarily through Haitian agencies, while most of the smaller organizations work independently to meet basic water needs in rural areas. The types of projects constructed by these NGO's include the construction of small irrigation systems, the drilling of wells and the capturing of springs in rural areas, and storm drainage 5  Water Resources Assessment of Haiti projects in Port-au-Prince. Small relief organizations generally drill wells or capture springs to supply potable water in the rural areas. Theft of water and vandalism of the water distribution system are serious problems. For example, in Jeremie, the water distribution lines that lie on the ground surface are broken in many locations, with water running out of the lines, and people stealing the water instead of using the fountains that are occasionally installed on the lines. The system is gravity fed, so the breaking of the distribution lines deprives the population at the end of the line of water. Another problem in Jeremie is the customers refuse to pay for water service, depriving the local water system of working capital to repair and lay new lines. 1. Domestic Uses and Needs Much of the surface water is contaminated or saline; however, it is used for domestic purposes by much of the population with little or no treatment. The Government and NGO’s are trying to supply potable water to the population from water wells. About 40 percent of the population obtains water supplied by Government- and NGO-constructed water supply systems or wells. The 1996 estimated percentages of populations with access to either a water-supply system or a well are as follows: 35 percent of Port-au-Prince, including the surrounding areas of Pétion- Ville, Carrefour, and Delmas; (2) 43 percent of the secondary villages (populations over 5,000); and (3) 39 percent of the rural villages (populations less than 5,000).xiv The following sections present a breakdown of the water supply situation for the three sectors. Port-au-Prince. Water supply for Port-au-Prince is poor. In 1995 only about 35 percent of the nearly 2 million inhabitants had access to the water system.xv Most of the metropolitan areas receive water service only part of the time. Some areas receive water service daily, but most receive water only twice a week. The lack of service is attributed to (1) system losses associated with the age of the distribution system and theft of service, estimated at 60 percent; (2) interruptions in the power supply to the wells and pumps; and (3) contamination of water sources. About 75 percent of the water for the municipal system is obtained from 18 springs located near the Massif de la Selle mountains and the remainder from 5 old water wells and 6 new ones (as of mid-1998). The municipal water system does not use surface water as a source. A 1996 report estimated production from springs and wells to be 40,000,000 cubic meters per year.xvi Most of the distribution is accomplished by a gravity-fed system of 16 municipal storage tanks that provides a total volume capacity of more than 45,000 cubic meters. See table 3 for the population served by the various types of service. 6  Water Resources Assessment of Haiti Table 3. Water Supply in Port-au-Prince Type of service Total Population Served Distribution systems 520,800 Public fountains 60,000 Private wells 3,400 Supply to shantytowns 15,600 Source other than 36,500 CAMEP Total 636,300 Source: Organisation Panaméricaine de la Santé/Organisation Mondiale de la Santé, Comité National Interministeriel, Analyse du Secteur Eau Potable et Assainissement, Agenda 21, May 1996, p. 147. CAMEP has five wells in the vicinity of the airport with each capable of producing 200 cubic meters per hour from electric-powered vertical turbine pumps. The wells are approximately 100 meters deep and 12 to 16 inches in diameter. Not coincidentally, this area near the airport receives the most consistent water service. Six new wells have been drilled along Rivière Grise to supplement the existing wells. All wells pump 24 hours a day, and all have secondary generators to provide electricity during power outages. Frequent interruptions to service are caused by shortages of generator fuel. Water distribution in the capital is via 24-inch water mains and 8-inch polyvinyl chloride (PVC) pipes. The network, built in the 1970's, is outdated and in poor condition. Chlorine disinfectant is injected at all wells and springs. CAMEP is the only agency with a water- testing laboratory. About 25 samples from different sites are tested daily for coliform bacteria. When samples fail the coliform test, the results are relayed to the citizens via the public radio system. Contamination of the distribution lines by domestic waste from latrines and cesspools located too close to inhabited areas is a common problem. The sources of water for Port-au-Prince are facing several major problems that are decreasing the quality and quantity. One problem is contamination. All the springs are reported to be contaminated by biological contamination from human and solid wastes. A couple of the springs are too polluted to be used. Human sewage, agricultural runoff, and industrial wastes are also threatening the wells. A second major problem is decreasing yields from the springs. Deforestation, urbanization, and drought are greatly diminishing the amount of water infiltrating into the ground to recharge the aquifers, with the result of decreasing flow from the springs. For many of the inhabitants, especially the poor, the only source of water is surface water from Rivière Grise, Rivière Blanche, smaller streams, irrigation ditches, and the city’s storm water drains. The surface water near the city is severely polluted by human sewage, solid wastes, and industrial chemical contamination. Secondary Villages. SNEP manages many water supply systems that serve the smaller secondary cities. Of 28 SNEP-managed systems, 5 are pumped, 3 are a combination of gravity- fed and pumped systems, and the remaining 20 are gravity-fed systems. If all residential connections and public fountains are considered, 260,000 people receive service from SNEP. UNICEF, the World Bank, IDP, the German Foundation for Technical Assistance, and the U.S. Agency for International Development (USAID) have provided assistance in the development of water supply projects to SNEP. Other agencies and organizations also provide water supply services to this sector. In 1995 about 43 percent of the population of secondary villages had 7  Water Resources Assessment of Haiti access to water systems. Estimated water supply coverage in secondary villages is presented in table 4. Table 4. Water Supply in Secondary Villages Population Percent Department Population Served Served Artibonite 239,652 106,920 44.6 Centre 72,739 36,641 50.4 Grand'Anse 83,362 23,018 27.6 Nord 210,765 117,890 56.0 Nord-Est 63,798 15,293 24.0 Nord-Ouest 61,59 22,375 36.3 Ouest 78,545 25,474 32.4 Sud 94,383 41,242 43.7 Sud-Est 39,054 13,864 35.5 Total 943,891 402,717 43.0 Source: Système de Suivi du Secteur Eau Potable et Assainissement (WASAMS), Actualisation des Taux de Couverture des Besoins en AEPA au 31 Décembre 1996, OPS/OMS-UNICEF, December 1997, p. 8. Rural Areas. Water supply coverage to the rural areas was estimated to be 39 percent in 1996.xvii A great need exists for water wells, as most of the rural population uses surface water which is often contaminated. Both SNEP and POCHEP work in this sector along with NGO's, various humanitarian relief organizations, as well as the Ministère de l’Agriculture des Ressources Naturelles et du Developpement Rural (MARNDR). Most of the small relief organizations concentrate their efforts within this sector. Since its creation in 1981, POCHEP has installed about 90 water supply systems funded mostly by the IDB. The projects consist mainly of well installation and the capturing of springs. Many of the private relief organizations concentrate on the installation of basic hand pump wells. Many of POCHEP's systems, however, include public bathing areas and distribution networks. Several of these networks extend up to 17 kilometers from their source. POCHEP trains the local citizens in public health issues along with the proper operation and maintenance of the water systems, and they maintain a detailed database on their existing and proposed projects. In many cases, especially in the larger villages, once POCHEP completes a system, it is turned over to SNEP to manage. The small relief organizations like the SBC, Water for Life, Free Methodist Mission, and the Blue Ridge Ministries play a significant role in the development of water supply for rural areas. Interviews with members of the SBC, who have been drilling wells in Haiti since 1964, provided the following information that can be considered somewhat typical of other small relief organizations. The SBC has one operational cable-tool drill rig that is used to drill about 25 to 35 wells per year. As of April 1998, a backlog of 10 wells existed. Hand pumps are installed on the wells. As of April 1998, most of the SBC's efforts were concentrated in the Nord and Nord-Est departments, but they work throughout the country. Within the northern departments, most of the wells are drilled to a minimum depth of 100 feet, since many of the shallower 40- to 60-foot- deep wells risk going dry during the dry season. In the past, the SBC has also captured springs as water sources, but the cost to drill a well is about one-third that of capturing a spring. Consequently, all their current efforts center on well drilling and repairing existing systems. The 8  Water Resources Assessment of Haiti SBC also trains the local population in the operation and maintenance of their systems and performs annual checks on the conditions of the systems. Many of the mountainous areas, particularly in the Département du Nord-Ouest, are experiencing water shortages due to aquifer drawdown. This is attributed to deforestation and overuse of aquifers. According to a report sponsored by the United Nations, one method of reducing the rate of decrease in water levels would be to construct small surface impoundments to serve as aquifer recharge areas, which retain rainwater. The depth to water in much of the mountainous areas is too great for pumping water by hand pumps, meaning electrical (submersible) pumps would have to be used. This is a problem too, as many of these areas do not have a functioning electrical system. The overdevelopment of ground water resources on the Plaine du Cul-de-Sac (Cul-de-Sac Plain) for irrigation and water supply has created saltwater intrusion problems in wells, particularly in the coastal areas near Port-au-Prince. 2. Industrial/Commercial Uses and Needs Annually, the food-processing industry (i.e., juice, carbonated drinks, beer) in the Plaine du Cul- de-Sac (Cul-de-Sac Plain) uses more than 4 million cubic meters of water. Ground water, obtained from about 800 wells, is the primary source of this water.xviii Information on other industrial uses and needs is unavailable. 3. Agricultural Uses and Needs Surface water flows directly into a great number of irrigation systems. The most important agricultural areas in the country are the irrigated plains that include the Plaine du Nord (North Plain), the Fort-Liberté area, the Plaine du Cul-de-Sac (Cul-de-Sac Plain), the Plaine des Cayes (Cayes Plain) and the lower Rivière de l’Artibonite and Rivière de l’Estère valleys. The quantity of surface water available for irrigation is decreasing due to deforestation.xix Although agriculture accounts for 66 percent of the employment, it generates only 35 percent of the GDP. This is partly because of the uneven distribution of rainfall, which forces farmers to rely on irrigation to meet their needs. About 80 percent of the total quantity of water utilized in the country is for irrigation. In 1996 an estimated 1,170 million cubic meters of water was used for irrigation (see table 5). A 1996 report listed the total number of irrigation projects at 128, serving a total area of about 70,000 hectares. However, because of system malfunctions and losses, only about 42,000 hectares are irrigated on a regular basis. The largest irrigation projects, which irrigate 25,000 hectares, are along the Rivière de l’Artibonite.xx MARNDR does not maintain current records on the amount of land irrigated or the amount of water used for irrigation purposes. Consequently, actual numbers on the amount of land irrigated are difficult to verify. 9  Water Resources Assessment of Haiti Table 5. Irrigation by Hydrogeographic Region Consumption Region Mm3/yr) Centre-Nord 410.0 Centre-Sud 333.5 Nord 8.4 Nord-Ouest 161.0 Sud-Est 69.0 Sud-Ouest 187.0 Total 1168.9 Source: Organisation Panaméricaine de la Santé/Organisation Mondiale de la Santé, Comité National Interministeriel, Analyse du Secteur Eau Potable et Assainissement, Agenda 21, May 1996, p. 83. B. Hydropower The Electricité d’Haiti (ED'H) is responsible for the electrical energy system. Electrical power is concentrated in Port-au-Prince and limited to rotating-sector service during dry periods. System losses, attributed to theft, create additional stress on the system. Haiti has seven hydropower projects, of which the Peligre project with an installed capacity of more than 47 megawatts is by far the largest. The most serious problem facing the Peligre project is deforestation which causes erosion and sedimentation that is filling the reservoir. Table 6. Hydropower Plants, 1996 Installed Capacity Project River Name (MW) Peligre Rivière de 47.1 l’Artibonite Drouet Rivière de 2.5 l’Artibonite Saut Mathirine Rivière de 2.4 Cavaillon Grande Rivière du Rivière Caracol 0.9 Nord Montrouis Rivière Deluge 0.9 Jacmel Rivière Gaillard 0.9 Belladere Rivière Onde 0.3 Verte Total 55.0 Source: Organisation Panaméricaine de la Santé/Organisation Mondiale de la Santé, Comité National Interministeriel, Analyse du Secteur Eau Potable et Assainissement, Agenda 21, May 1996, p. 88. C. Stream Gage Network Most of the available water data is for the periods 1922 through 1940, the 1960's, and the late 1980's. The collected data was mainly for the development of specific water projects and programs. 10  Water Resources Assessment of Haiti The Service National de Ressources en Eau (SNRE) is the agency responsible for the collection of water data. However, budget problems in the past years have caused the deterioration of the data-gathering network. In 1994 a survey by SNRE and the Association Haitienne pour la Maîtrise de l'Eau en Milieu Rural (ASSODLO) determined that of the 183 hydrometeorological gages located, only 25 percent were functional. Based on interviews with SNRE officials in April 1998, only 3 of their 35 stream gaging stations were functioning. One of the biggest problems of the actual network is its altimetric distribution. About 63 percent of the network is located between zero and 200 meters altitude. This is largely due to the difficulties of accessing the mountainous areas. Deforestation is becoming critical in many of the mountainous areas of the northwest, making the need for accurate climatological information even more important. A great need exists to reestablish the national network of river and rain gages. The technical information obtained from such a network is critical for effective water resources management. D. Waterway Transportation Commercial navigation along the rivers is almost nonexistent. The Rivière de l’Artibonite, navigable only by small shallow draft vessels, is occasionally used by small boats that serve local transportation and commerce. IV. Existing Water Resources A. Surface Water Resources More than 100 streams flow from the Haitian mountains into the Golfe de la Gonâve, the Atlantic Ocean, and the Caribbean Sea. No streams flow toward the Dominican Republic. In the highlands, streamflow is rapid and torrential, but in the lowlands, the same streams become slow and meander. Many streams have their flows dissipated by evaporation and infiltration and never reach the sea. Surface water flows directly into many irrigation systems, but the quantity of water available for irrigation is decreasing due to deforestation.xxi 1. Precipitation and Climate The climate is considered to be tropical maritime. On the plains, the mean annual temperature is 27 degrees Celsius (81 degrees Fahrenheit), while in the mountains, the mean annual temperature is 16 degrees Celsius (61 degrees Fahrenheit). Seasonal temperature variation is only 4 to 5 degrees Celsius (8 to 10 degrees Fahrenheit). Frost frequently occurs at elevations above 400 meters (1,312 feet) during winter. The quantity and regional distribution of rainfall is extremely variable because of the orientation of the mountain chains and intervening lowlands with respect to rain-bearing northeast trade winds. Haiti lies in the rain shadow of the Dominican Republic. Rainfall produced by trade winds is stopped by the mountain ridge dividing the two countries. Northern and windward slopes of mountainous areas commonly receive two to three times as much precipitation as leeward slopes. Average annual precipitation in mountainous areas commonly exceeds 1,200 millimeters (42 inches) and can be as much as 2,700 millimeters (106 inches). The average annual precipitation in lowland areas is usually less than 1,200 millimeters (42 inches) and can be as little as 550 millimeters (22 inches).xxii The Plaine du Gonaïves and the eastern part of the Plaine du Cul-de-Sac are the driest areas in the country. The Plaine du Gonaïves averages 550 millimeters (22 inches) of precipitation annually, and the eastern part of the Plaine 11  Water Resources Assessment of Haiti du Cul-de-Sac averages 850 millimeters (33 inches).xxiii The country also experiences a high rate of evaporation. April through November is generally the wet season, though many areas will have a lull between June and August. In these areas, the first wet season is from April to June and the second from September to November. The lull is not a dry period, but there is a marked decrease in precipitation. At Port-au-Prince, the wettest period is from May to November, while at Gonaïves, the wettest period is from June to September. Tropical storms, hurricanes, droughts, and floods are frequent.xxiv Hurricane season is from June through October. Flash flooding occurs often during the wet season, but flooding can occur at any time of the year. During periods of rainfall, flows in most streams are torrential but of short duration.xxv 2. Rivers and Basins There are 30 hydrographic basins and zones in the country, which drain from the mountains to the coastal waters. Table 7 provides information on the major drainage basins within the country. Many streams have a branching network of tributaries. In many areas, fast-flowing streams converge with shallower, slower-moving meandering streams, causing a decrease in velocity, which in turn causes an increase in the average depth, increased sedimentation, less mixing, and greater in-channel retention times. This may lead to significant water quality variations, especially in total suspended solids, dissolved oxygen content, turbidity, and related constituents.xxvi Most of the streams are relatively small and less than 100 kilometers long. The Rivière de l’Artibonite, which rises in the Dominican Republic and drains westward to the Golfe de la Gonâve, is the largest stream. The Rivière de l’Artibonite has a length of about 280 kilometers and a catchment area of about 9,500 square kilometers.xxvii It is shallow, as are most other streams in the country, but has average flows ten times that of any of the other streams. Other large streams include Les Trois Rivières, Rivière Grand’Anse, and Rivière du Massacre (or Rio Dajabon), and Rivière Pédernales. The Trois Rivières is the second longest stream and discharges into the Atlantic at Port-de-Paix. The Rivière Grand’Anse has the second highest discharge and reaches the coast near Jérémie on the southern peninsula. The Rivière du Massacre and the Rivière Pédernales begin in the Dominican Republic and form parts of Haiti’s border with the Dominican Republic before flowing into the Atlantic Ocean and Caribbean Sea, respectively.xxviii Many perennial streams begin on the rainy windward mountain slopes, but disappear, in whole or in part in the drier lowland plains. For example, Rivière Grise and Rivière Blanche begin on the northern slopes of the Massif de la Selle, disappear on the Plaine du Cul-de Sac during low flow, but reach the sea during floods.xxix 12  Water Resources Assessment of Haiti Table 7. Major Drainage Basins Annual Basin Drainage Minimum Maximum Discharge Number Area in Daily River Name Daily Flow (Mean Daily (see Fig. Haiti Flow (m3/s) Flow) C-1) (km2) (m3/s) (m3/s) III Les Trois Rivières 897 1,500 0.3 13.13 VI Rivière du Limbé 312 485 0.3 4.29 VIII Grande Rivière du 663 390 0.02 7.66 Nord X Rivière de l’Estère 834 95.3 1.85 18.76 XI Rivière de l’Artibonite 6,862 2,500 8.4 101.4 XIII Rivière Grise (Grande 290 475 0.31 3.97 Rivière du Cul-de- Sac) XVI Rivière Momance 330 420 0.6 5.88 XVII Grande Rivière de 560 800 0.12 4.67 Jacmel XXII Rivière de Cavaillon 380 1,035 0.7 9.42 XXIV Ravine du Sud 330 350 0.28 4.86 XXVI Grand’Anse Rivière 541 850 0.7 26.85 Sources: M. Ehrlich et al., June 1985. Organization of American States, 1972. Organisation Panaméricaine de la Santé/ Organisation Mondiale de la Santé, 1996. United Nations Development Program, Department of Technical Cooperation for Development, 1991. 3. Lakes and Swamps The largest natural lake in the country is Étang Saumâtre at the eastern end of the Plaine du Cul-de-Sac. It covers an area of about 181 square kilometers, has no outlet, and contains brackish water. Values for total dissolved solids (TDS) vary between 7,500 and 10,650 milligrams per liter.xxx The water level of the lake fluctuates from 12 to 20 meters above mean sea level.xxxi The Étang Saumâtre is the habitat of many exotic species of tropical wildlife. Many of the smaller natural lakes that exist throughout the country contain brackish water. Numerous ponds and lakes occupy sinkholes in limestone terrain. Some of these lakes are permanent while others are intermittent. The Lac de Péligre (Lake Peligre) is a manmade reservoir on the upper Rivière de l’Artibonite at the convergence of Massif des Montagnes Noires and Chaîne des Matheux. Completion of the dam formed a massive reservoir and allowed some control over the flow of the Rivière de l’Artibonite, which had previously fluctuated between a raging torrent and an uncertain trickle. The Lac de Péligre, which covers an area of about 30 square kilometers, has lost about 30 percent of its storage capacity (see Chapter IV, A, 4).xxxii Along the coast, brackish surface water occurs in mangrove swamps that are backed by marshy areas. Just south of Gonaïves is the most extensive area which is 32 kilometers long and up to 5 kilometers wide. An inland marsh area surrounds Étang Saumâtre. Significant mangrove forests occur on the north coast between Baie de l’Acul and Fort-Liberté, in the Rivière de l’Artibonite estuary, in the Grande Cayemite area along the northern coast of the southern peninsula, and in the Les Cayes region including the Île à Vache. Important mangrove swamps are also found on the Île à la Gonâve, primarily on the northern coast but also fringing much of the rest of the island.xxxiii Many of these areas are not depicted in figure C-1 due to the map scale. 13  Water Resources Assessment of Haiti 4. Deforestation Effects A major environmental problem that is adversely affecting the surface water resources is the rapid deforestation that is occurring. The removal of trees and vegetation allow for increased and faster runoff of rainfall. The faster runoff causes a rapid increase in the amount of water entering the stream, resulting in water levels that rise faster with larger peak discharges. It also causes less rainwater to infiltrate into the soil to recharge the aquifers. Deforestation has also been associated with changes in rainfall patterns. Deforestation, combined with the heavy agricultural pressure on marginal farmlands, accelerates soil erosion, which increases the volume of sediment carried by the streams and degrades the water quality of the upland and downstream areas. All streams have high sediment loads due to erosion in the upper parts of the basins. Soil from eroded slopes clogs streams, drainage channels, impoundments, and water systems, resulting in higher operation and maintenance costs. Inland deforestation is causing increased sedimentation in the rivers discharging to the coast which is damaging the barrier reef and associated fragile ecosystems. Increased turbidity is adversely affecting mangroves, coral reefs, and seagrass beds.xxxiv Estimates of the total volume of soil loss annually due to erosion are as high as 20,000 tons.xxxv As erosion increases, the river regime will become steeper, which increases the amount of runoff and decreases the amount of infiltration. The flow regime and total river discharge may be permanently altered. Rate, volume, and sediment loads may complicate forestry, agriculture, and downstream activities. With each passing year, the rivers and streams flow more like torrents and less like stable permanent rivers. Therefore, surface water use as a water supply for the increasing population is continuously decreasing, and less water is available when it is needed during the dry season.xxxvi The active deforestation in the headwater areas of the Ravine du Sud river basin is already resulting in decreased agricultural potential in the downstream lowlands. Due to deforestation, Lac de Péligre, which receives its water from the upper Rivière de l’Artibonite, has lost 30 percent of its storage capacity due to sedimentation. By the year 2010, it is estimated that only river basins in the extreme southeast will have some forest cover. For all areas, current discharge values are probably larger than historical data, since evapotranspiration losses are less with lower vegetation density resulting in higher runoff.xxxvii During the period from 1992 to 1994, the increased demand for charcoal brought on by fuel and propane shortages caused an increase in the rate of deforestation. Fuel shortages, coupled with high unemployment within the agricultural sector, forced many farm families to sell charcoal as a means to survive. B. Ground Water Resources Fresh ground water from wells and springs is an essential resource and a major source of safe (potable) water. Water from springs and wells is used for agricultural, industrial, public, and private purposes. However, the availability of ground water is highly variable. The continued access to and the development of safe and reliable supplies of ground water are important issues that the Government of Haiti and many international and private organizations are working on. Ground water is generally plentiful throughout the plains and valleys of the country, but in the mountainous areas, the availability of fresh ground water varies considerably, from locally plentiful to scarce. Alluvial plains and valleys (see appendix C, figure C-2, map units 1 and 6) make up approximately 17 percent of the country but contain about 84 percent of the available ground water reserves. The mountainous areas contain many types of aquifers, including 14  Water Resources Assessment of Haiti karstic, fractured, low permeability, and igneous aquifers. Areas containing karstic and highly fractured aquifers (map unit 2) make up approximately 15 percent of the country and contain about 2 percent of the available ground water reserves. Areas containing less fractured and discontinuous aquifers (map unit 3) make up approximately 25 percent of the country and contain about 12 percent of the available ground water reserves. The poor permeability and igneous aquifers (map units 4 and 5) make up approximately 42 percent of the country but contain less than 1 percent of the available ground water reserves.xxxviii Deforestation has a negative impact on the ground water resources of the country. Deforestation reduces the amount of water that recharges the aquifers, resulting in lower ground water levels. In many areas, this drop is causing wells to ‘dry up’ or the water level to be too low to economically produce water. Most hand pumps cannot produce water from depths greater than 300 feet. Although ground water is generally safer than untreated surface water supplies, many shallow aquifers are becoming biologically contaminated, primarily due to improper waste disposal. 1. Aquifer Definition and Characteristics To understand how ground water hydrogeology works and where the most likely sources of water may be located, a short aquifer definition and aquifer characteristics are presented followed by specific country attributes. Ground water supplies are developed from aquifers, which are saturated beds or formations (individual or group), which yield water in sufficient quantities to be economically useful. To be an aquifer, a geologic formation must contain pores or open spaces (interstices) that are filled with water, and these interstices must be large enough to transmit water toward wells at a useful rate. An aquifer may be imagined as a huge natural reservoir or system of reservoirs in rock whose capacity is the total volume of interstices that are filled with water. Ground water may be found in one continuous body or in several distinct rock or sediment layers within the borehole, at any one location. It exists in many types of geologic environments, such as intergrain pores in unconsolidated sand and gravel, cooling fractures in basalts, solution cavities in limestone, and systematic joints and fractures in metamorphic and igneous rock, to name a few. Unfortunately, rock masses are rarely homogeneous, and adjacent rock types may vary significantly in their ability to hold water. In certain rock masses, such as some types of consolidated sediments and volcanic rock, water cannot flow, for the most part, through the mass; the only water flow sufficient to produce usable quantities of water may be through the fractures or joints in the rock. Therefore, if a borehole is drilled in a particular location and the underlying rock formation (bedrock) is too compact (consolidated with little or no primary permeability) to transmit water through the pore spaces and the bedrock is not fractured, then little or no water will be produced. On the other hand, if a borehole is drilled at a location where the bedrock is compact and the rock is highly fractured with water flowing through the fractures, then the borehole could yield sufficient water to be economically useful. Since it is difficult or impossible to predict precise locations that will have fractures in the bedrock, photographic analysis can be employed to assist in selecting more suitable well site locations. Other methods are available but are generally more expensive. Geologists use aerial photography in combination with other information sources to map lithology, faults, fracture traces, and other features, which aid in well site selection. In hard rock, those wells sited on fractures and especially on fracture intersections generally have the highest yields. Correctly locating a well on a fracture may not only make the difference between producing high versus low water yields, but potentially the difference between producing some water versus no water 15  Water Resources Assessment of Haiti at all. On-site verification of probable fractures further increases the chances of siting successful wells. Overall, the water table surface is analogous to but considerably flatter than the topography of the land surface. Ground water elevations are typically only slightly higher than the elevation of the nearest surface water body within the same drainage basin. Therefore, the depth to water is greatest near drainage divides and in areas of high relief. During the dry season, the water table drops significantly and may be marked by the drying up of many smaller surface water bodies fed by ground water. The drop can be estimated based on the land elevation, on the distance from the nearest perennial stream or lake, and on the permeability of the aquifer. Areas that have the largest drop in the water table during the dry season are those that are high in elevation far from perennial streams and consisting of fractured material. In general, some of these conditions can be applied to calculate the amount of drawdown to be expected when wells are pumped. 2. Haiti Hydrogeology Variations in the geological structures, geomorphology, rock types, and precipitation contribute to the varying ground water conditions in different parts of the country. The primary aquifer systems are alluvial aquifers (map units 1 and 6); reef and karstic or highly fractured limestones (map unit 2); and fractured sedimentary rocks (map unit 3). Other aquifers are within low permeability deposits (map unit 4) and igneous rocks (map unit 5). These aquifer systems are described in table C-2 and depicted on figure C-2. Descriptions are based upon the interpretation of the most recent hydrogeological information available. In the plains and river valleys, depth to water is generally less than 150 meters. In the mountains, depth to water may be greater than 200 meters. In many areas, the depth to water may be too great for economical use.xxxix Seasonal fluctuation of the water table can be more than 15 meters. In most parts of the country, deforestation and overuse are lowering yields, dropping water levels, degrading water quality, and increasing the amount of seasonal fluctuation. Aquifers in the mountains are generally locally recharged by rainfall, while those in the lowlands are primarily recharged from the mountains. Access to well sites is generally very difficult because of the overall poor quality of the road network, the rugged terrain, and the steep slopes. Locally, wet ground and urban congestion also hinder access. Only in the plains and major river valleys is access generally unhindered. The easiest access is in the Plaine du Cul-de-Sac. a. Alluvial Aquifers (map units 1 and 6) Fresh water is generally plentiful from productive aquifers in alluvium in the northern coastal plain, and most river valleys and other coastal plains (map unit 1). Near the city of Jacmel, and in parts of the Plaine du Cul-de-Sac, these aquifers include extremely porous and permeable reef deposits. Ground water in the alluvial deposits is typically found in 1- to 8-meter-thick layers of sand and gravel that are separated by layers of silt and clay. The alluvial deposits are widely tapped for domestic supply and locally by irrigation wells.xl Brackish or saline water, due to saltwater intrusion, is generally plentiful from alluvial aquifers near the coast and in the Plaine du Cul-de-Sac (map unit 6). The exception is near Étang Saumâtre, which has no outlet. Here the ground water is brackish to saline because of the highly mineralized soil. 16  Water Resources Assessment of Haiti b. Reef and Limestone Aquifers (map unit 2) Fresh water is locally plentiful from reef deposits and karstic or highly fractured limestones. The reef deposits are primarily found in the Plateau de Bombardopolis on the islands of Gonâve and Tortue and locally along the coast. The natural porosity and permeability of the reef deposits has been increased by fractures and solution cavities. The limestone aquifers receive large amounts of recharge and store and transmit water through extensive systems of fractures and solution cavities. Springs of varying yields are very common. Locally, wells in these aquifers can have extremely high yields, but wells that fail to intersect water-bearing fractures can be dry or have very small yields. c. Other Aquifers (map units 3, 4, and 5) Fresh water is locally plentiful from fractured limestones, sandstones, conglomerates, and schist aquifers that are generally interbedded with shales, siltstones, marls, and chalks.xli Typically, these rocks have not been strongly deformed by folding and faulting, which results in an uneven distribution of fractures (map unit 3).xlii Fresh water is scarce or lacking in areas containing low-permeability shales, consolidated conglomerates, sandstones, marls, chalks, and other rock types. Water yields are generally less than 5 liters per second. Locally, wells drilled into fracture zones may have higher yields (map unit 4). Fresh water is scarce or lacking in areas containing igneous and metamorphic rocks. Aquifers are found in basalt, diabase, lavas, andesites, quartz diorites, quartzite, and other igneous rocks. These rocks may be interbedded with shales, limestones, tuffs, and weathered igneous rock (map unit 5).xliii Water yields are generally less than 5 liters per second. Locally, wells drilled into fractured zones may have higher yields. C. Water Quality The lack of access to a safe water supply (see chapter III) contributes to poor health and hygiene. Infectious and parasitic diseases, often spread through unsafe water, are the leading causes of morbidity and mortality. Of the three agencies responsible for water supply (CAMEP, SNEP, and POCHEP), only CAMEP has a laboratory and routinely monitors water quality. In the arid northwest, the lack of safe water causes people to consume brackish water, which has dire health effects. Overall, a great need for wastewater treatment exists, particularly in the area of Port-au-Prince. The first priority, however, must be the development of dependable water supply sources. 1. Surface Water Surface water contamination from domestic and industrial sources occurs throughout the country, especially near heavily populated areas. Specific information on water quality is not available, but many sources indicate that surface water contamination has increased significantly in recent years. Domestic wastewater and agricultural runoff cause biological contamination of the surface water near and downriver of populated places. Biological contamination from untreated domestic wastewater is a serious problem. Chemical contamination may be a problem near major cities and industrial sites. 17  Water Resources Assessment of Haiti 2. Ground Water Biological contamination of the shallow aquifers by human and animal wastes is a major problem. Chemical contamination is becoming a greater problem, especially near major towns. Deforestation and overuse are also lowering overall water quality. Near the coast and in many areas of the Plaine du Cul-de-Sac, overuse is causing increased saltwater intrusion, further lowering water quality. 3. Domestic Waste Disposal There is no public system for the collection or treatment of domestic and industrial wastewater, and all existing sanitation systems are privately owned. Residential areas and larger cities with running water dispose of wastewater either into septic tanks or infiltration ditches. Some households divert their wastewater into rainwater channels without treatment. About 43 percent of the population is covered by systems for domestic wastes, including latrines and flush toilets. In rural areas, only 16 percent of the population has this service. The collection and disposal of domestic solid waste poses a serious problem, particularly in Port-au-Prince and other large cities without adequate landfills.xliv The situation within the rural areas is similar although on a smaller scale. The lack of domestic waste disposal has resulted in bacteriological pollution of several of the 18 springs supplying Port-au-Prince.xlv The Metropolitan Solid Waste Collection Service is responsible for the collection of solid wastes in Port-au-Prince, but only 30 percent of the daily volume of solid wastes produced is collected. The overall waste collection in other cities is about 42 percent, while it is only 16 percent within rural areas.xlvi Service is more reliable in smaller cities where collection is ensured by local governments and local offices of the MTPTC and the MSPP. Several initiatives are underway to improve the disposal of domestic waste within rural areas. Sponsored by UNICEF and other NGO's, a program to construct latrines in rural areas began in 1980. In 1995 it was estimated that about 155,000 single-family and community-type latrines served about 24 percent of the rural population. V. Water Resources Departmental Summary A. Introduction This chapter summarizes the water resources information of Haiti, which can be useful to water planners as a countrywide overview of the available water resources. Figure C-1, Surface Water Resources, divides the country into surface water categories identified as map units 1 through 6. Table C-1, which complements figure C-1, details the quantity, quality, and seasonality of the significant water features within each map unit and describes accessibility to these water sources. Figure C-2, Ground Water Resources, divides the country into ground water categories identified as map units 1 through 6. Table C-2, which complements figure C-2, details predominant ground water characteristics of each map unit including aquifer materials, aquifer thickness, yields, quality, and depth to water. A summary based on these figures and tables is provided for each of the nine departments. 18  Water Resources Assessment of Haiti B. Water Conditions by Map Unit Figure C-1, Surface Water Resources, divides the country into six map unit categories based on water quantity, water quality, and seasonality. Map units 1 through 3 depict areas, where fresh surface water is perennially available in very small to very large quantities. Map units 4 and 5 depict areas, where fresh surface water is seasonally available in meager to very large quantities during high flows. Map unit 6 depicts areas, where fresh surface water is scarce or lacking and moderate to enormous quantities of brackish to saline water are perennially available. Figure C-1 also divides the country into 30 hydrographic basins and zones labeled I through XXX. Several river basin boundaries cross both departmental and international borders. The locations of selected river gaging stations are also depicted in figure C-1. Figure C-2, Ground Water Resources, divides the country into six map unit categories based on water quantity, water quality, and aquifer characteristics. Map unit 1 depicts areas, where fresh ground water is generally plentiful in small to enormous quantities. These areas appear, at a country scale, to be the most favorable areas for ground water exploration. Map units 2 and 3 depict areas, where fresh ground water is locally plentiful, ranging to enormous quantities. At the local level, these areas might be suitable for ground water exploration but will require additional site-specific investigations. Map units 4 and 5 depict areas, where unsuitable to small quantities of fresh water may be available. At the country scale, these areas appear to be the least favorable areas for ground water exploration. Map unit 6 depicts areas, where fresh ground water is scarce or lacking and where very small to very large quantities of brackish to saline water are available. The locations of selected wells and springs are also depicted in figure C-2. Surface water and ground water quantity and quality are described for each department by the following terms: Surface Water Quantitative Terms: Enormous = >5,000 cubic meters per second (m3/s) (176,550 cubic feet per second (ft3/s)) Very large = >500 to 5,000 m3/s (17,655 to 176,550 ft3/s) Large = >100 to 500 m3/s (3,530 to 17,655 ft3/s) Moderate = >10 to 100 m3/s (350 to 3,530 ft3/s) Small = >1 to 10 m3/s (35 to 350 ft3/s) Very small = >0.1 to 1 m3/s (3.5 to 35 ft3/s) Meager = >0.01 to 0.1 m3/s (0.35 to 3.5 ft3/s) Unsuitable = <0.01 m3/s (0.35 ft3/s) Ground Water Quantitative Terms: Enormous = >100 liters per second (L/s) (1,600 gallons per minute (gal/min)) Very large = >50 to 100 L/s (800 to 1,600 gal/min) Large = >25 to 50 L/s (400 to 800 gal/min) Moderate = >10 to 25 L/s (160 to 400 gal/min) Small = >4 to 10 L/s (64 to 160 gal/min) Very small = >1 to 4 L/s (16 to 64 gal/min) Meager = >0.25 to 1 L/s (4 to 16 gal/min) Unsuitable = <0.25 L/s (4 gal/min) 19  Water Resources Assessment of Haiti Qualitative Terms: Fresh water= maximum TDS >1,000 milligrams per liter (mg/L); maximum chlorides >600 mg/L; maximum sulfates (SO4) >300 mg/L Brackish water = maximum TDS >1,000 mg/L, but >15,000 mg/L Saline water = TDS >15,000 mg/L C. Water Conditions by Department The following information was compiled for each department from figures C-1 and C-2 and tables C-1 and C-2. The write-up for each department consists of a general and regional summary of the surface water and ground water resources, derived from a country scale overview. Locally, the conditions described may differ. The department summaries should be used in conjunction with figures C-1 and C-2 and tables C-1 and C-2. Additional information is necessary to adequately describe the water resources of a particular department or region. Specific well information was limited and for many areas unavailable. For all areas that appear to be suitable for tactical and hand pump wells, local conditions should be investigated before beginning a well-drilling program. 20  Water Resources Assessment of Haiti Département de l'Artibonite Area: 4,530 square kilometers (16.4 percent of the country) Estimated Population (1995): 1,013,779 (14 percent of the population) Population Density: 224 people per square kilometer Departmental Capital: Gonaïves Location: In north-central Haiti, with the Golfe de la Gonâve forming the western boundary. Surface Water: The largest and longest river in Haiti, the Rivière de l’Artibonite, lies in this department in map unit 1 and discharges into the Golfe de la Gonâve. Fresh water is perennially available in moderate to very large quantities from map unit 1, from the Rivière de l’Artibonite. Fresh water is perennially available in small to very large quantities from the Rivière de l’Estère, a major river, as depicted by map unit 2. Rivière La Quinte, Rivière de Saint Marc, and part of Les Trois Rivières lie in map unit 3 in the northern part of the department, where fresh water is perennially available in very small to very large quantities. Most of the department lies within map unit 5, where fresh water is seasonally available in meager to very large quantities from May through October from intermittent streams, such as Rivière Anse Rouge and Rivière Colombier. The department capital of Gonaïves lies in this map unit near the mouth of the Rivière de l’Estère along the coast. Brackish to saline water is found in map unit 6, north of Rivière de l’Estère along the coast. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the stream valleys and the Plaine du Gonaïves, as depicted by map unit 1. Fresh ground water is generally available in small to enormous quantities in this map unit, which covers about one-fourth of the department. Depth to water is about 20 to 40 meters in the Rivière de l’Artibonite valley. These alluvial aquifers are widely tapped for domestic supply and locally by irrigation wells and are suitable for hand pump and tactical wells. About one-third of the department lies in map units 2 and 3 in scattered locations, where fresh ground water is locally plentiful from limestones, sandstones, conglomerates, and schists. Some areas may be suitable for hand pump wells, but successful wells in these areas may depend upon encountering water-bearing fractures. The remainder of the department lies in areas where ground water exploration is not recommended during military exercises without site-specific reconnaissance. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. The department capital of Gonaïves is located in map unit 6, where brackish to saline water exists in alluvial aquifers near the coast. 21  Water Resources Assessment of Haiti Département du Centre Area: 3,700 square kilometers (13.4 percent of the country) Estimated Population (1995): 490,790 (7 percent of the population) Population Density: 133 people per square kilometer The least densely populated department Departmental Capital: Hinche Location: In the east-central part of the country, with the border with the Dominican Republic forming the eastern boundary. Surface Water: Fresh surface water is perennially plentiful along the middle reach of Rivière de l’Artibonite, its major tributaries, and Lac de Péligre, as depicted by map unit 1. Lac de Péligre, which stores 395 million cubic meters and lies in the southern part of the department, was formed by a dam on Rivière de l’Artibonite at the convergence of Massif des Montagnes Noires and Chaîne des Matheux. The lake, which has lost 30 percent of its capacity due to sedimentation caused by deforestation, covers 30 square kilometers, and is used for flood control, irrigation, and hydroelectric power generation. The shoreline of the lake is rocky, steep, and irregular, so access may be difficult. The Rivière Bouyaha and parts of the upper reach of Rivière de l’Artibonite lie in map unit 2, where fresh water is perennially available. Map unit 3 occupies the department along part of Rivière Canot, Rivière Guayamouc, Rivière Lociane, and Rivière de Fer a Cheval, where fresh water is perennially available in very small to very large quantities. The department capital of Hinche lies in map unit 3 near Rivière Guayamouc. The remainder of the department lies in map unit 5, where fresh surface water is seasonally available in meager to very large quantities from intermittent streams, with many streams being dry for part of the year. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the Rivière de l’Artibonite valley and along its tributaries, as depicted by map unit 1. Map unit 1 occupies less than one- fourth of the department in the south, where fresh water is generally plentiful in small to enormous quantities at depths generally less than 50 meters. These alluvial deposits are widely tapped for domestic supply and locally by irrigation wells and are suitable for hand pump and tactical wells. About one-third of the department lies in map units 2 and 3, where fresh water is locally plentiful from limestones, sandstones, conglomerates, and schists. Karstic and highly fractured limestones can be found in map unit 2 areas in this department. Some areas may be suitable for hand pump wells, but successful wells in these areas may depend upon encountering water- bearing fractures. More than half of the department lies in map units 4 and 5, where fresh ground water is scarce or lacking. Ground water exploration during military exercises is not recommended in these map units without site-specific reconnaissance. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. The department capital Hinche lies in map unit 4. 22  Water Resources Assessment of Haiti Département de la Grand’Anse Area: 3,335 square kilometers (12 percent of the country) Estimated Population (1995): 641,399 (9 percent of the population) Population Density: 192 people per square kilometer Departmental Capital: Jérémie Location: In the northwestern part of the southern peninsula, with the Golfe de la Gonâve forming the northern boundary. Surface Water: Fresh surface water is perennially available in very small to very large quantities along Rivière Grand’Anse, Rivière des Roseaux, and Rivière de la Voldrogue, as depicted by map unit 3. Rivière Grand’Anse has the second highest discharge in the country and reaches the coast of Golfe de la Gonâve near Jérémie. Most of the department lies in map units 4 and 5, where fresh surface water is seasonally available from streams and lakes, such as Rivière de Dame Marie, Rivière des Baradères, Grande Rivière de Nippes, and Rivière Brossard. Many streams are dry for part of the year. Rivière des Baradères disappears into a limestone depression. The department capital Jérémie is located near the mouth of Rivière Grand’Anse and lies in map unit 5. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the major stream valleys, such as Rivière de Dame Marie and the lower reach of Rivière Grand’Anse. These areas lie in map unit 1, which cover less than one-fourth of the department, where fresh ground water is generally plentiful in small to enormous quantities. These alluvial deposits are suitable for hand pump and tactical wells. About half of the department lies in map units 2 and 3, where ground water is locally plentiful from limestones, sandstones, and conglomerates. Reef deposits of weathered and fractured limestone aquifers can be found in map unit 2 areas in this department. The department capital of Jérémie lies in map unit 3. Some areas may be suitable for hand pump wells, but successful wells in these areas may depend upon encountering water-bearing fractures. Ground water exploration during military exercises is not recommended in the remainder of the department without site-specific reconnaissance. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. 23  Water Resources Assessment of Haiti Département du Nord Area: 2,045 square kilometers (7.4 percent of the country) Estimated Population (1995): 759,318 (11 percent of the population) Population Density: 371 people per square kilometer Departmental Capital: Cap-Haïtien Location: In the north-central part of the country with the Atlantic Ocean forming the northern boundary. Surface Water: Fresh surface water is perennially available along Rivière Bouyaha and Rivière du Limbé. Rivière Bouyaha lies in map unit 2, where small to large quantities of fresh water are available. Rivière du Limbé lies in map unit 3, where very small to very large quantities of fresh water are available. Rivière du Limbé is well incised in deep narrow valleys separated by steep hills. The lowest part of the river basin is poorly drained and swampy. Most of the department lies in map units 4 and 5, where fresh surface water is seasonally available from rivers such as Rivière Galois (Haut de Cap) and Grande Rivière du Nord. Many streams are dry for part of the year. The department capital Cap-Haïtien is located near the mouth of Rivière Galois and is in map unit 5. Along the department’s northeast coast is a small area of map unit 6, where brackish to saline water is found. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the Plaine du Nord and the stream valleys, which occupy less than one-fourth of the department mainly in the northern parts. These areas lie in map unit 1, where fresh ground water is generally plentiful in small to enormous quantities. These alluvial deposits are widely tapped for domestic supply and locally by irrigation wells and are suitable for hand pump and tactical wells. Depth to water is usually 5 to 25 meters. Less than one-fourth of the department lies in map units 2 and 3, where ground water is locally plentiful from limestones, sandstones, conglomerates, and schists. These areas are generally in the northern and southeastern parts of the department. Some areas may be suitable for hand pump wells, but successful wells may depend upon encountering water-bearing fractures. The remainder of the department lies in areas where ground water exploration is not recommended during military exercises without site-specific reconnaissance. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. The department capital Cap-Haïtien is in this area, map unit 6, where brackish to saline ground water exists in alluvial aquifers of the Plaine du Nord. 24  Water Resources Assessment of Haiti Département du Nord-Est Area: 1,750 square kilometers (6.4 percent of the country) The smallest department in Haiti Estimated Population (1995): 248,764 (3 percent of the population) The least populated department in Haiti Population Density: 142 people per square kilometer Departmental Capital: Fort-Liberté Location: In northeast Haiti, with the Atlantic Ocean forming the northern boundary and the Dominican Republic forming the eastern boundary. Surface Water: Fresh water is seasonally available throughout most of the department. Most of the department lies in map unit 5, where meager to very large quantities are available from intermittent streams such as the upper reach of the Grande Rivière du Nord. Meager to large quantities are available from streams such as Rivière Marion and Rivière du Massacre as depicted by map unit 4. The department capital Fort-Liberté is located at the mouth of Rivière Marion and is in map unit 4. Part of the northwest coastline lies within map unit 6, where brackish to saline water is perennially available. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the Plaine du Nord, which is in the northern part of the department. This area lies in map unit 1 and occupies about one-third of the department, where fresh water is generally plentiful in small to enormous quantities. These alluvial deposits are widely tapped for domestic supply and locally by irrigation wells and are suitable for hand pump and tactical wells. Depth to water is usually 5 to 25 meters. The department capital Fort-Liberté is located in map unit 1. Near the city are areas of map unit 6, where saltwater intrusion is a problem. Ground water exploration during military exercises is not recommended in the remainder of the department without site-specific reconnaissance because fresh water is scarce or lacking. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. The entire coastal area lies within map unit 6, where brackish to saline ground water exists in alluvial aquifers. 25  Water Resources Assessment of Haiti Département du Nord-Ouest Area: 2,525 square kilometers (9.1 percent of the country) Estimated Population (1995): 420,971 (6 percent of the population) Population Density: 167 people per square kilometer Departmental Capital: Port-de-Paix Location: On the western end of the northern peninsula. The Atlantic Ocean forms the northern and western boundary, while the Golfe de la Gonâve forms the southern boundary. Includes the Île de la Tortue. Surface Water: Fresh surface water is perennially available in the small part of the department that lies along Les Trois Rivières, as depicted by map unit 2 in the lower reach and map unit 3 in the middle reach. Access to the river may be difficult due to rugged terrain and deeply incised stream valleys. The department capital Port-de-Paix is located at the mouth of Les Trois Rivières and is in map unit 2. Les Trois Rivières is the second longest river in the country, discharging into the Atlantic at Port-de-Paix. Nearly the entire department lies in map unit 5, where fresh surface water is seasonally available, in meager to very large quantities, from May to October, with most streams being dry for part of the year. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the stream valleys, such as Les Trois Rivières and Rivière des Barres, as depicted by map unit 1. Map unit 1 covers less than one-fourth of the department, where ground water is plentiful in small to enormous quantities. These alluvial deposits are suitable for hand pump and tactical wells. The department capital of Port-de-Paix is near the mouth of Les Trois Rivières and is partially located in map unit 1. About half of the department lies in map unit 2 and 3, where ground water is locally plentiful from limestones, sandstones, conglomerates, and schists. These areas are scattered throughout the department and on the Île de la Tortue. Reef deposits of weathered and fractured limestone aquifers can be found in map unit 2 areas in this department. Some areas may be suitable for hand pump wells, but successful wells may depend upon encountering water-bearing fractures. The department capital of Port-de-Paix is located partially in map unit 3. The remainder of the department lies in map unit 4, where ground water exploration is not recommended during military exercises without site-specific reconnaissance. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. Many of the mountainous locations within this area are experiencing water shortages due to aquifer drawdown. 26  Water Resources Assessment of Haiti Département de l’Ouest Area: 4,650 square kilometers (16.8 percent of the country) The largest department in Haiti Estimated Population (1995): 2,494,862 (35 percent of the population) The most populated department in Haiti Population Density: 537 people per square kilometer The most densely populated department in Haiti Departmental Capital: Port-au-Prince Location: In south-central Haiti, with the Golfe de la Gonâve forming the western boundary and the Dominican Republic and the Étang Saumâtre forming the eastern boundary. Includes the national capital of Port-au-Prince and the Île de la Gonâve. Surface Water: Fresh surface water is perennially available from streams and lakes, as depicted by map unit 3. The major streams that include the Rivière Blanche and the Rivière Grise (Grande Rivière du Cul-de-Sac) along with their associated plains are in map unit 3. These two rivers begin on the northern slopes of the Massif de la Selle, but disappear in the Plaine du Cul-de-Sac during low flow, reaching the sea during floods. Much of the department lies in map unit 5, where fresh surface water is seasonally available in meager to large quantities from May to October from intermittent streams, such as Rivière Grand Goâve and the upper reaches of Rivière Grise, Rivière Blanche, and Rivière Momance. Port-au-Prince, the department and national capital, lies in the Plaine du Cul-de-Sac, south of the mouth of Rivière Grise (Grande Rivière du Cul-de-Sac). Most of the city lies in map unit 5, but the coastal areas near Port-au-Prince lie in map unit 6, where brackish to saline water exists. The municipal water system for Port-au-Prince does not use surface water for any of its water needs. However, for many of the inhabitants, the only source of water is surface water from the Rivière Grise, the Rivière Blanche, smaller streams, irrigation ditches, and the city’s storm water drains. The surface water near the city is severely polluted by human sewage, solid wastes, and industrial chemical contamination. Along the coast and surrounding the lakes Étang Saumâtre, Trou Caïman, and Étang de Miragoâne are areas that lie in map unit 6, where fresh surface water is scarce or lacking. In these areas, brackish to saline surface water is perennially available. Étang Saumâtre, located at the eastern end of the Plaine du Cul-de-Sac, covers an area of about 181 square kilometers. It is the largest natural lake in the country but has no outlet, allowing for the buildup of salts. TDS values range between 7,500 and 10,650 milligrams per liter. The water level of the lake fluctuates between 12 and 20 meters above sea level. The lake is the habitat of many exotic species of tropical wildlife. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the Plaine du Cul-de- Sac, stream valleys, and coastal plains, covering about one-fourth of the department. These areas lie in map unit 1, where fresh ground water is generally plentiful in small to enormous quantities. These alluvial deposits are widely tapped for domestic supply and locally by irrigation 27  Water Resources Assessment of Haiti wells and are suitable for hand pump and tactical wells. Depth to water is usually 30 to 50 meters. In part of the Plaine du Cul-de-Sac, the aquifers include very porous and permeable reef and carbonate deposits, usually between 25 and 50 meters thick. The best access to potential well sites in the country is in the Plaine du Cul-de-Sac in this department. Two well fields in map unit 1, east of the international airport, provide water to the municipal water system of Port-au-Prince. Over half of the department lies in map units 2 and 3, where ground water is locally plentiful from limestones, sandstones, and conglomerates. Reef deposits of weathered and fractured limestone aquifers can be found in map unit 2 areas in this department, including most of the Île de la Gonâve. Some areas may be suitable for hand pump wells, but successful wells may depend upon encountering water-bearing fractures. Ground water exploration during military exercises is not recommended in the remainder of the department without site-specific reconnaissance because fresh water is scarce or lacking. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. Along the coast near Port-au-Prince, in the northern part of the Plaine du Cul-de-Sac, and near the Étang Saumâtre are areas of map unit 6, where brackish to saline water exists in alluvial aquifers. In the area of Étang Saumâtre, the ground water is brackish to saline because of the highly mineralized soil. Port-au-Prince, the department and national capital, lies on alluvial aquifers of the Plaine du Cul-de-Sac, but falls within map unit 6 because the aquifers have been contaminated by saltwater intrusion. North and east of the center of the city is map unit 1, where fresh ground water is generally plentiful in small to enormous quantities from Quaternary alluvial aquifers at depths generally less than 50 meters. South of the city is map unit 3, where unsuitable to enormous quantities are available from karstic or fractured limestones at depths generally less than 200 meters. The Port-au-Prince municipal water system supplies water to about one-third of the population. The main sources of water for the municipal water system are 18 springs in the hills south of the city in map unit 3 and 2 well fields east of the international airport that are in map unit 1. These sources provide approximately 36 million cubic meters of water per year. These sources are facing several major problems that are decreasing the quality and quantity of the water entering the municipal water system. All of the springs are reported to be contaminated by biological contamination from human and solid wastes with a couple of the springs being too polluted to be used. Human sewage, agricultural runoff, and industrial wastes are also threatening the wells. Water yields from the springs are also decreasing. Deforestation, urbanization, and drought are greatly diminishing the amount of water infiltrating into the ground to recharge the aquifers, reducing the amount of water produced by the springs. 28  Water Resources Assessment of Haiti Département du Sud Area: 2,950 square kilometers (10.5 percent of the country) Estimated Population (1995): 653,398 (9 percent of the population) Population Density: 221 people per square kilometer Departmental Capital: Les Cayes Location: In the southwestern part of the southern peninsula, with the Caribbean Sea forming the southern boundary. Includes the Île à Vache and several other small islands. Surface Water: Fresh surface water is perennially available only in the part of the department along the Plaine des Cayes, as depicted by map unit 3. Fresh water is available in very small to very large quantities from rivers such as Rivière de Cavaillon, Rivière de l’Islet, Ravine du Sud, Rivière De Torbeck, and Rivière de l’Acul. Rivière de l’Islet and Rivière de Torbeck may disappear and reappear again before reaching the coast. The department capital Les Cayes is located at the mouth of the Ravine du Sud in map unit 3. Most of the department lies in map units 4 and 5, where fresh surface water is seasonally available from streams such as the Rivière Brodequin, Rivière Mombin, and Rivière de Tiburon. Many streams are dry for part of the year. Many streams in the eastern part of the department are deeply incised and have torrential flows. Along the coast and on the Île à Vache are areas of map unit 6, where brackish to saline water is available year-round. Ground Water: The best areas for ground water exploration are the alluvial aquifers in the Plaine des Cayes and the major stream valleys, such as Rivière de Cavaillon, Ravine du Sud, Rivière de Torbeck, the lower and middle reaches of Rivière de l’Acul, and the lower reach of Rivière Brodequin, as depicted by map unit 1. In these areas, which cover about one-fourth of the department, fresh ground water is generally available in small to enormous quantities. Depth to water can be as deep as 150 meters. These alluvial deposits are tapped for domestic supply and locally by irrigation wells and are suitable for hand pump and tactical wells. The department capital of Les Cayes lies in map unit 1. Near the city, saltwater intrusion is a problem. More than half of the department lies in map units 2 and 3, where ground water is locally plentiful from limestones, sandstones, and conglomerates. Reef deposits of weathered and fractured limestone aquifers can be found in map unit 2, located mainly in the east. Some areas may be suitable for hand pump wells, but successful wells may depend upon encountering water-bearing fractures. Ground water exploration during military exercises is not recommended in the remainder of the department without site-specific reconnaissance because fresh water is scarce or lacking. These areas are depicted by map units 5 and 6, which are in scattered locations throughout the department. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. 29  Water Resources Assessment of Haiti Département du Sud-Est Area: 2,215 square kilometers (8 percent of the country) Estimated Population (1995): 457,013 (6 percent of the population) Population Density: 206 people per square kilometer Departmental Capital: Jacmel Location: In the southeastern part of the southern peninsula, with the Caribbean Sea forming the southern boundary and the Dominican Republic forming the eastern boundary. Surface Water: Fresh surface water is perennially available along Grande Rivière de Jacmel and its tributary near Jacmel and along part of Rivière Gauche. These areas lie in map unit 3, where very small to very large quantities are available. The department capital Jacmel is located at the mouth of Grande Rivière de Jacmel and is in map unit 3. The remainder of the department lies in map units 4 and 5, where fresh surface water is seasonally available from lakes and streams such as Rivière de Bainet, Rivière Marigot, and Rivière Pédernales. Rivière Pédernales forms part of the southernmost boundary with the Dominican Republic. Many streams are dry for part of the year. Ground Water: The best area for ground water exploration is the alluvial aquifers in the lower Grande Rivière de Jacmel valley. This area consists of map unit 1, occupying less than one-fourth of the department, where fresh ground water is generally plentiful in small to enormous quantities. These alluvial deposits are widely tapped for domestic supply and locally by irrigation wells and are suitable for hand pump and tactical wells. The department capital of Jacmel is located in map unit 1. Near Jacmel, the aquifers include very porous and permeable reef and carbonate deposits, generally between 25 and 50 meters thick. Most of the department lies in map units 2 and 3 in areas scattered throughout the department, where ground water is locally plentiful from limestones, sandstones, and conglomerates. Reef deposits of weathered and fractured limestones can be found in map unit 2. Some areas may be suitable for hand pump wells, but successful wells may depend upon encountering water- bearing fractures. In small parts of the department, scattered throughout, fresh ground water is scarce or lacking as depicted by map unit 5. Ground water exploration during military exercises is not recommended in these areas without site-specific reconnaissance. Specialized civilian technical expertise in water well drilling may have marginal success in these areas. 30  Water Resources Assessment of Haiti VI. Recommendations A. General Haitian Government agencies and several NGO's are attempting to solve the country's water resources problems. The Corps assessment team was provided several comprehensive documents, each containing excellent recommendations for improving the situation with Haiti's water resources. The following needs are identified by the Corps assessment team and by Haitian Government officials. B. Watershed Protection and Management A common concern of most Government officials and technical experts is the impact of deforestation on the country's environment and on its water resources. Development of comprehensive watershed and basin management plans is needed to curb these impacts. The intent of a watershed management plan is to achieve a comprehensive view of water and land resource problems within a watershed and to identify opportunities and authorities to address such problems. Watershed planning is a systematic approach to (1) evaluating alternative uses of water and land resources, (2) identifying conflicts and trade-offs among competing uses, and (3) making contemplated changes through informed decisions. Plans should include (1) short-term measures (i.e., erosion stabilization, small water supply systems, hydrologic and meteorological stations, including the repair of the existing gages); (2) interim measures (i.e., sediment control programs, flood plain management, small reservoirs); and (3) long-term measures (i.e., reforestation, large impoundment for flood control, hydropower, and water supply). C. Troop Exercise Opportunities 1. Well Exercises Haiti depends heavily on ground water for its water supply. Overall, the quality of ground water is good throughout the country. Small hand pump wells are in great demand, particularly in rural areas. Installing small hand pump wells, especially in rural areas, as part of U.S. troop engineering exercises, could be of great benefit. These wells could be a source of safe water replacing contaminated surface water supplies in certain areas of the country. An organization like POCHEP would be an excellent source of information to determine rural areas with the greatest need for water. 2. Small Surface Impoundments In certain areas of the country, the construction of small impoundments for capturing water for water supply should be considered. Mountain ranges cover about 75 percent of the land surface. In these mountainous areas, depth to aquifers may be too great for troop exercises, and accessibility may be difficult. Other areas where small impoundments should be considered are areas where aquifer drawdown is associated with the impacts of deforestation and where ground water exploration may be too difficult for troop exercises. Surface impoundments may also be beneficial for decreasing surface runoff and erosion and may aid aquifer recharge. Extreme caution should be exercised in site selection because of the potential for water contamination. These impoundments should be considered only in areas where the surface 31  Water Resources Assessment of Haiti water is not heavily polluted, such as upstream from populated places, away from untreated domestic wastewater discharge, and away from industrial sites and major cities. The impoundments should be sited where water contamination would not be a problem. Design of these impoundments will not be difficult, and construction techniques will be very similar to local construction techniques. The other main factors are selecting a suitable site, sizing the embankment, and designing the outlet structures. The construction of these sites can be accomplished by U.S. troops. D. Water Quality and Supply Improvement Much of the population lacks access to water supply and sanitation services, which directly impacts the quality of life. Wastewater treatment is also lacking throughout the country, with much effluent discharged into the nation’s waterways without treatment. Wastewater treatment is needed to improve the quality of the surface water resources of the country, as much of the population uses surface water for their water supply needs. The water supply sector is presently undergoing transformation, and it is recommended that work continue in this effort, to improve potable water access for the population. VII. Summary Water resources in Haiti are a major concern. The lack of adequate safe (potable) water supplies for basic human needs is a significant problem throughout Haiti, although surface and ground water resources are abundant. This situation leads to increased competition for limited resources. Several of the main reasons for this situation are: • uneven rainfall distribution; • degradation of the watersheds caused by deforestation; • rapid growth in urban areas increasing demand beyond system capacity; • poor distribution networks; • poor water resources management; • no single agency responsible for management of water resources; • lack of adequate data needed to make informed decisions; • poor irrigation supply network leading to underdevelopment of sector; and • lack of wastewater collection and treatment and proper solid waste disposal. The water supply sector is undergoing complete transformation, and consequently many of these issues will be addressed. URSEP is a special agency created to correct organizational problems of the water sector. When URSEP recommendations become law, two new organizations, UMEPA and CREPA, will be formed. UMEPA is the National Office for Drinking Water and Sanitation, and CREPA is the Regulatory Committee for Water Supply and Sanitation. Critical issues are the lack of access to water and sanitation, high population density and high mortality rate, the extensive environmental damage caused by deforestation, and the lack of hydrologic data. The solution to these issues presents significant challenges to the managers of Haiti's water resources. Throughout our meetings with the managers, the recognition of the task before them and willingness to address the issues were evident. 32  Water Resources Assessment of Haiti The recommendations offered in this report present opportunities to improve the water resources situation. If adopted, these actions can have positive long-term impacts. Many of the other issues discussed in this report will require long-term institutional commitments to affect change. Proper management of Haiti’s abundant water resources can provide adequately for the country’s needs. Endnotes iGeorge Tchobanoglous and Edward D. Schroeder, Water Quality, Reading, Massachusetts: Addison-Wesley Publishing Co., 1987, pp. 1-4. iiS. Caircross, Developing World Water, "The Benefits of Water Supply," Hong Kong: Grosvenor Press International, 1987, pp. 30-34. iii M. Mendez, Planning for Water and Sanitation Programs in the Caribbean–1991 Update, Water and Sanitation for Health Project Field Report No. 335, Environmental Health Project, Washington, DC: U.S. Agency for International Development, February 1992, p. 69. iv Pan American Health Organization/World Health Organization (PAHO/WHO), Health Situation Analysis–Haiti 1996, PAHO/WHO/AM/HAI/HST/96.01, Port-au-Prince: Ministry of Public Health and Population, June 1996, pp.14-16. v PAHO/WHO, pp. 11-18. vi M. Mendez, pp. 69-74. vii C. Maternowska, People & the Planet, “Real Lives–Haiti,” Vol. 3, No. 4, Planet 21, London, 1994, p. 2. viii D. Kinely, Waterlines, “Haiti Adopts Low-Cost Solutions to Its Water Problems,” Vol. 4, No. 3, London: Intermediate Technology Publications, Ltd., January 1986, p. 21. ix PAHO/WHO, p. 10. xOrganisation Panaméricaine de la Santé/Organisation Mondiale de la Santé (OPS/OMS), Comité National Interministeriel, Analyse du Secteur Eau Potable et Assainissement, Agenda 21, May 1996, pp. 19 and 20. xiMichele Turk, DisasterRelief.org, "Immortal Hurricane Georges Lives On in the Agony of the Victims," 9 October 1998, Internet: http://162.6.3.135:1020/Disasters/981008georges23, Accessed January 1999, pp. 2 and 3. xii PAHO/WHO, p. 4. xiii OPS/OMS, May 1996, p. 83. xiv OPS/OMS, May 1996, pp.147-150. xv OPS/OMS, May 1996, p. 147. 33  Water Resources Assessment of Haiti xvi Système de Suivi du Secteur Eau Potable et Assainissement, Actualisation des Taux de Couverture des Besoins en AEPA au 31 Décembre 1996, OPS/OMS-UNICEF, December 1997, p. 5. xvii OPS/OMS, May 1996, p. 149. xviii OPS/OMS, May 1996, p. 83. xix M. Ehrlich, et al., Haiti–Country Environmental Profile-A Field Study, Contract No. 521-0122- C-00-4090-00, Washington, DC: U.S. Agency for International Development, June 1985, p. 3. xx OPS/OMS, May 1996, pp. 83-85. xxi Department of the Army. Haiti–A Country Study. DA PAM 550-164, Edition 5, Washington, DC: American University, Foreign Areas Studies, 1985, pp. 11 and 12. xxii W. Back, Hydrogeology–The Geology of North America, “Region 26, West Indies.” Vol. O-2, Boulder, Colorado: Geological Society of America, 1988, p. 245. xxiii United Nations, Department of Economic and Social Affairs, Ground Water in the Western Hemisphere, "Haiti," Natural Resources/Water Series No. 4, New York, 1976, p. 148. xxiv M. Ehrlich, et al., p. 1. xxv M. Ehrlich, et al., p. 20. xxvi M. Ehrlich, et al., pp. 20-24. xxvii United Nations, p. 148. xxviii OPS/OMS, May 1996, p. 68. xxix United Nations, p. 148. xxxR. Gonfiantini and M. Simonot. Isotope Techniques in Water Resources Development, “Isotopic Investigation of Groundwater in the Cul-de-Sac Plain, Haiti.” Proceeding of a Symposium, International Atomic Energy Agency, Vienna, 1997, p. 494. xxxi United Nations, p. 148. xxxii Department of the Army, pp. 11 and 12. xxxiii M. Ehrlich, et al., p. 60. xxxiv M. Ehrlich, et al., p. 20. xxxv PAHO/WHO, p. 5. xxxvi M. Ehrlich, et al., p. 26. xxxvii L.A. Lewis and W.J. Coiffey, AMBIO, “The Continuing Deforestation of Haiti.” Vol. 14, No. 3, Stockholm: Royal Swedish Academy of Sciences, 1985, pp. 159 and 160. 34  Water Resources Assessment of Haiti xxxviiiOPS/OMS, May 1996, pp. 21 and 22. xxxixUnited Nations, pp. 150 and 151. xlUnited Nations, p. 151. xliF.J. Maurrasse, Survey of the Geology of Haiti, "Guide to the Field Excursions in Haiti of the Miami Geological Society," Miami, Florida: Miami Geological Society, March 1982, pp. 20-55. xliiUnited Nations, pp. 150 and 151. xliiiF.J. 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Vol. 20, No. 75, Extrait de la Revue de la 38  Water Resources Assessment of Haiti Société Haïtienne d’Histoire et de Géographie, Port-au-Prince: Imprimerie V. Valcin, October 1949. Tchobanoglous, George, and Edward D. Schroeder. Water Quality. Reading, Massachusetts: Addison-Wesley Publishing Co., 1987. Turk, Michele. DisasterRelief.org, "Immortal Hurricane Georges Lives On in the Agony of the Victims." 9 October 1998. Internet: http://162.6.3.135:1020/Disasters/981008georges23. Accessed January 1999. United Nations, Department of Economic and Social Affairs. Ground Water in the Western Hemisphere, "Haiti." Natural Resources/Water Series No. 4, New York, 1976. United Nations Development Program, Department of Technical Cooperation for Development. Carte Hydrogéologique, République d’Haiti. Maps, Scale 1:250,000, New York, December 1990. United Nations Development Program, Department of Technical Cooperation for Development. Developpement et Gestion des Ressources en Eau, Disponibilités en Eau et Adequation Aux Besoins. Projet. Hai/86/003, Vols. I, II, III, IV, V, and VI, New York, 1991. United Nations Development Program, Food and Agricultural Organization. Enquêtes sur les Terres et les Eaux dans la Plaine des Gonaïves et le Département du Nord-Quest, Haiti, Final Report. Vols. I, II, and III, 45/HAI 3, Général Carte, FAO/SF, Rome, 1969. United Nations Development Program, Industrial Development Organization. Stone in Haiti. Vienna, Austria: United Nations, 1980. United Nations Development Program, Organisation Météorologique Mondiale. Information Météorologique et Hydrologique pour le Developpement Économique et Social. HAI\97\006, Haiti: United Nations, June 1997. United Nations Educational, Scientific, and Cultural Organization. First Workshop on the Hydrogeologic Atlas of the Caribbean Islands. Santo Domingo, Dominican Republic: United Nations, 1966. United Nations Educational, Scientific, and Cultural Organization. Second Workshop on the Hydrogeologic Atlas of the Caribbean Islands. Caracas, Venezuela: United Nations, 6-9 September 1988. United States Corps of Engineers Water Assessment Mission. The Water Situation in Haiti, A Presentation on CAMEP and SNEP. Port-au-Prince, April 1998. Van Den Bold, W.A. AAPG Bulletin, “Neogene of Central Haiti.” Vol. 58/3, Tulsa, Oklahoma: American Association of Petroleum Geologists, Inc., March 1974. Waite, Herbert A. Reconnaissance Investigation of Public Water Supplies of Port-au-Prince and in 12 Villages in the Department du Nord, Haiti. Washington, DC: United States Geological Survey, 1960. Weyl, R. Geologie der Antillen–Beitraege zur Regionalen Geologie der Erde. Band 4, Berlin, Germany: Gebrüder Borntraeger, 1966. White, T.A., and C.F. Runge. Unasylva, “Cooperative Watershed Management in Haiti– Common Property and Collective Action.” Vol. 46, No. 1, Washington, DC: United Nations Development Program, Food and Agricultural Organization, 1995. White, T.A., and C.F. Runge. World Development, “The Emergence and Evolution of Collective Action–Lessons from Watershed Management in Haiti.” Vol. 23, No. 10, Great Britain: Elsevier Science, Ltd., 1995. 39  Water Resources Assessment of Haiti Woodring, W.P., J.S. Brown, and W.S. Burbank. Geology of the Republic of Haiti. Department of Public Works, Baltimore, Maryland: Lord Baltimore Press, 1924. 40  APPENDIX A List of Officials Consulted and List of Agencies Contacted  Water Resources Assessment of Haiti Many individuals in the public and private sectors were consulted and provided exceptional cooperation and support: List of Officials Consulted Government Agency, Relief Telephone Name Organization, or Non-Government Fax Title Organization (NGO) Address Email Mr. Hyppolite Service National d'Eau Potable (SNEP) Delmas 45 No. 1 46-2927 – Port-au-Prince Mr. Exantus SNEP Delmas 45 No. 1 – Executive Director Port-au-Prince Mr. Ludovic Cevere SNEP Delmas 45 No. 1 – Engineer Port-au-Prince Mr. Tom Kuhns Blue Ridge Ministry LIC 28 46-3676 (from – Port-au-Prince 0700 to 0730 only) Mr. Yvelt Cheri Department of Natural Resources Rte. Nat'l. No. 1 – Executive Director Port-au-Prince Mr. Jean Baptiste Centrale Autonome Metropolitaine d'Eau – 23-4662 – Potable (CAMEP) Mr. Gerton Rene CAMEP – – Engineer Mr. Marc Yves Philador Southern Baptist Convention (SBC) Cazeau 22-5289 – Pastor Joseph I. Elyse SBC Cazeau 22-5289 Director of Annex Mr. Pierre Camille SBC Cazeau 22-5289 – Mr. Luc Pierre Jean Association Haitienne pour la maîtrise de Avenue N, 44-1035 Agronomist l'eau en milieu rural Impasse Soray No. 7 Port-au-Prince Mr. Frantz Metellus Pan American Health Organization/World Thomassin 32, 45-0764 Engineer, National Health Organization Impasse Laurent 49-3542 Consultant No. 5 Port-au-Prince Ms. Yolande Paultre Unité de Réforme du Secteur de l'Eau Delmas 45 No. 1 46-0830 Sanitation Engineer Potable Port-au-Prince 46-4770 Mr. Drew Kutschenreuter U.S. Agency for International Development USAID Haiti – Agronomist (USAID) Mr. Martin, Marc Eddy USAID USAID Haiti 33-5500 Senior Agronomist 22-3102 memartin.gov Ms. Chantel Santeli United Nations Development Program – – General Director Mr. Battiste United Nations Children's Fund – – – Mr. Appollon Nervellus Poste Communautaire d'Hygiene et d'Eau – – General Director, Potable (POCHEP) Engineer Mr. Franz Belgrade POCHEP – – Technical Director, Engineer A-1  Water Resources Assessment of Haiti List of Agencies Contacted Organization Acronym Translation Area of Responsibility Association Haitienne pour la ASSODLO Haitian Association for Water ASSODLO is a non-government maîtrise de l'eau en milieu rural Control in Rural Areas organization (NGO) that supplies water to rural areas. Centrale Autonome CAMEP Independent Metropolitan CAMEP is the public agency Metropolitaine d'Eau Potable Water Company responsible for water supply to the city of Port-au-Prince and the surrounding areas of Pétion-Ville, Delmas, and Carrefour. Electricité d'Haiti ED'H Haitian Electricity Company ED'H is responsible for the development of electricity. Ministère de l'Agriculture, des MARNDR Ministry of Agriculture, MARNDR is responsible for the Ressources Naturelles et du Natural Resources, and Rural development of agriculture, including Developpement Rural Development irrigation systems. Ministère de l'Environnement MDE Ministry of the Environment MDE's primary mission is to protect the environment. Ministère de la Santé Publique MSPP Ministry of Public Health and MSPP is responsible for administering et de la Population Population the public health system. Ministère des Travaux MTPTC Ministry of Public Works, MTPTC is responsible for infrastructure Publiques, Transports et Transportation and improvements. Communications Communication Programme des Nations Unies PNUD United Nations Development PNUD has a program to repair the pour le Developpement Program stream-gaging network, but budget constraints have the program on hold. Poste Communautaire POCHEP Community Water Supply POCHEP is the agency within the d'Hygiene et d'Eau Potable and Sanitation Post MSPP responsible for development of rural water supply systems. Service National d'Eau Potable SNEP National Water Supply SNEP is the public agency responsible Service for water supply to rural areas. Service National de SNRE National Service for Water SNRE is responsible for the Ressources en Eau Resources management of water resources in Haiti. Unité de Reformé du Secteur URSEP Potable Water Sector Reform URSEP is responsible for development en Eau Potable Unit of a plan to reform the water sector. A-2 APPENDIX B Glossary  Water Resources Assessment of Haiti Glossary agricultural runoff That portion of precipitation that flows over the ground’s surface draining farmlands and feedlots. Usually it is polluted by agricultural wastes. Wastes include pesticides and fertilizers, animal manure and carcasses, crop residues, sediment from erosion, and dust from plowing. agrochemicals Chemicals used in agricultural practices, i.e., pesticides, herbicides, and fertilizers. alluvial Pertaining to processes or materials associated with transportation or deposition by running water. alluvium Sediment deposited by flowing water, as in a riverbed, flood plain, or delta. andesite A dense, fine-grained, dark colored to black, hard, extrusive igneous rock intermediate in composition between acidic and basic rocks. Occurs principally as thick extensive lava flows. aquifer A formation, group of formations, or part of a formation that contains sufficient saturated permeable material to yield significant quantities of water to wells and springs. basin A low area toward which streams flow from adjacent hills. Ordinarily, a basin opens either toward the sea or toward a downstream outlet; but in an arid region without an outlet, a basin can be surrounded by higher land. batholith (batholite) A great mass of coarse-grained igneous rock with an exposed surface of more than 100 square kilometers. bicarbonate (HCO3) A negatively charged ion which is the dominant carbonate system species present in most waters having a pH value between 6.4 and 10.3. Excessive concentrations typically result in the formation of scale. biological contamination The presence in water of significant quantities of disease-producing organisms. brackish water Water that contains more than 1,000 milligrams per liter but not more than 15,000 milligrams per liter of total dissolved solids. calcareous Composed of or containing calcium carbonate, calcium, or lime. calcium (Ca) An abundant alkali metal found in natural waters. calcium carbonate (CaCO3) A chemical compound consisting of calcium (Ca) and carbonate (CO3). When dissolved in water, it is used to express water hardness and alkalinity. In the solid state, it is the chief chemical component of limestone. chalk A soft, pure, earthy, fine-textured, usually white to light gray or buff limestone of marine origin, consisting almost wholly of calcite. Normally very porous but impermeable, and considered a confining bed. chemical contamination The presence in water of significant quantities of chemicals that may be a health risk. chert A compact, microcrystalline, glassy, hard, variously colored, siliceous sedimentary rock composed of chalcedonic silica. Chert occurs as lenses, nodules, or thin beds. cherty limestone Limestone containing chert, a fine-grained sedimentary rock of varying colors usually found as lenses interbedded in the limestone. chloride (Cl or Cl2) Negatively charged ions present in all natural waters. Excessive concentrations are undesirable for many uses of water. Chloride may be used as an indicator of domestic and industrial contamination. clastic Consisting of fragments of preexisting rocks. clastic rock A sedimentary rock that is made up of fragments of preexisting rocks transported mechanically into the place of deposition. clay As a soil separate, the individual particles less than 0.002 millimeter in diameter. As a soil textural class, soil material that contains 40 percent or more clay, less than 45 percent sand, and less than 40 percent silt. claystone A rock composed of mud, similar to shale but without the fine layering. coastal plain Any plain that has its margin on the shore of a large body of water, particularly the sea, and generally represents a strip of recently submerged sea bottom. B-1  Water Resources Assessment of Haiti conglomerate Gravel-size or larger, consolidated, rounded to semirounded rock fragments in a finer grained material. Conglomerate is usually a highly unpredictable rock for construction purposes, and normally avoided by the military engineer. Depending upon the degree of cementation, the drillability and ground water potential can vary significantly. consolidated Where loosely aggregated, soft or liquid earth materials have become firm and coherent rock. contaminant or pollutant As applied to water, any dredged spoil, solid waste, incinerator residue, sewage, garbage, sewage sludge, munitions, chemical wastes, biological material, radioactive materials, heat, wrecked or discarded equipment, rock sand, dirt or industrial municipal, and agricultural wastes discharge into water. coral An organism that separates carbonate material from seawater to form their external skeleton of calcium carbonate (limestone). Usually grow in colonies. Cretaceous A division of geologic time from 66 to 138 million years ago, during which certain rocks were formed. Falls chronologically after the Jurassic and before the Tertiary. Is the youngest division of the Mesozoic. dacite An extrusive igneous rock, massively bedded, light to dark gray, medium to coarse grained, and often foliated. The extrusive equivalent of quartz diorite. deforestation The removal or clearing away of the trees or forest. delta An alluvial deposit, often in the shape of the Greek letter “delta” from which it derives its name, which is formed where a stream drops its debris on entering a body of quieter water. Also, the terminal deposit of a river. depression (1) Any relatively sunken part of the ground’s surface; (2) a low-lying area surrounded by higher ground, having no outlet for surface water drainage. diabase An intrusive rock consisting essentially of labradorite and pyroxene. diorite A medium-to-coarse-grained, dark-colored, hard, intrusive igneous rock. discharge Volume of water passing through a cross section of a stream per unit time, quantity of flow. dissolved oxygen (DO) The amount of oxygen, in parts per million by weight, dissolved in water, now generally expressed in mg/L. It is a critical factor for fish and other aquatic life and for self- purification of a surface water body after inflow of oxygen-consuming pollutants. drainage basin The land area from which water drains into a stream, lake, or other body of water. dug well Well excavated by means of picks, shovels, or other hand tools. Eocene Division of geologic time between 38 and 55 million years ago. Falls chronologically after the Paleocene and before the Oligocene. Eocene is included in the Tertiary. extrusive rock A large series of igneous rocks that are extruded or forced into overlying formations such as to reach the surface. Their rapid ejection results in formation of very fine-to fine-grained textures. fault A fracture or fracture zone of the Earth along which there has been displacement of one side with respect to the other. fine-grained (rock) A sedimentary rock or sediment and its texture, in which the individual particles have an average diameter less than 0.6 millimeter (silt size or smaller). flash flood Flood of short duration with a relatively high peak rate of flow, usually resulting form a high-intensity rainfall over a small area. folding A bending in strata. Usually associated with a group showing common characteristics and trends. In many areas, folding causes the formation of joints and fractures. formation Strata or series of strata of rock or sediment showing distinct and unifying lithologic properties or characteristics and large enough to be mappable. Usually tabular in shape. fracture A break in a rock with no significant displacement across the break. fresh water Water that contains 600 milligrams per liter or less of chlorides, 300 milligrams per liter or less of sulfates, and 1,000 milligrams per liter or less of total dissolved solids. gaging station A location on a stream where water levels are measured to record discharge and other parameters. granodiorite A hard, crystalline, igneous rock that is massively bedded, light to dark gray, medium to coarse grained, and often foliated. B-2  Water Resources Assessment of Haiti gravel Individual rock or mineral fragments with more than 4.76 to less than 76 millimeters in diameter. ground water Water beneath the Earth's surface, often between saturated soil and rock, that supplies wells and springs. group A series of formations. hand pump A hand-operated device to move water from a well to the surface. Can be used to a depth of 45 to 50 meters and produces a yield of only a few liters per minute. hard water or hardness A measurement of the amount of calcium carbonate (CaCO3) in the water which can form an insoluble residue. high water The flow occurring in a stream during the wettest part of the year. hydroelectric A facility that produces electrical energy by means of a generator coupled to a turbine through which water passes. igneous A class of rock formed by the solidification of molten material. If the material is erupted onto the Earth's surface, the rock is called an extrusive or volcanic rock; if the material solidifies within the Earth, the rock is called an intrusive or plutonic rock. impermeable A bed or stratum of material through which water will not move. incised (valley) A stream channel that has been downcut or entrenched deeply into the surface. infiltration The flow or movement of water into the soil. interbedded Occurring between or lying in with other sediments or rock units; interstratified. intermittent (lake) A lake or small water body that contains water only at certain times of the year, as when it receives water from streams, springs, or from some surface source, such as rain. intermittent (stream) A stream or reach of a stream that flows only at certain times of the year, as when it receives water from springs or from some surface source, such as rain. intrusive rock (intrusives) Rock consolidated from magma beneath the Earth’s surface that is squeezed into cracks or crevices or between layers of older rocks. iron (Fe) A metal which when dissolved in water may give a bad taste to the water. karst An area of irregular limestone in which erosion has produced fissures, sinkholes, underground streams, and caverns. karstification The formation of cavities within limestone and dolomite by solution of the material by water. lagoon A shallow body of water with a restricted inlet from the sea that contains both brackish and saline water. lava Molten rock which issues from a volcano or a fissure in the Earth's surface. Lava is also the same material solidified by cooling. leaching The removal of soluble constituents from soils, landfills, mine wastes, sludge deposits, or other material by percolating water. lee or leeward The part or side of a hill or prominent object that is sheltered or turned away from the wind or is down wind. lignite A brownish-black soft coal in which the alteration of vegetal material has proceeded further than peal but no as far as sub-bituminous coal. limestone Soft to moderately hard rock composed of calcium carbonate, mainly shells, crystals, grains, or cementing material. Colors range from white through shades of gray to black. Commonly thick bedded, jointed, and containing fossils. Limestone is often highly fractured and soluble, and it often yields significant volumes of ground water. lowland A general term for extensive plains that are not far above sea level. low water The flow occurring in a stream during the driest period of the year. magma Molten rock material that forms igneous rocks upon cooling. magnesium (Mg) An abundant alkali metal found in natural waters that is essential in plant and animal nutrition. manganese (Mn) A hard, brittle, grayish metallic element used as an alloying agent in steel to give it toughness. mangrove A group of plants that grows in a tropical or subtropical marine swamp. A marine swamp dominated by a community of these plants. B-3  Water Resources Assessment of Haiti marl A sedimentary rock composed primarily of clay and calcium carbonate. Marl is interbedded with shale and limestone and has few construction uses. It is not normally a good aquifer and often acts as a confining bed. marsh A shallow lake, usually stagnant, filled with rushes, reeds, sedges, and trees. massive Rocks of any origin that are more or less homogeneous in texture or fabric, displaying an absence of flow layering, foliation, cleavage, joints, fissility, or thin bedding. meander A tortuous or winding stream channel. metamorphic Rocks formed in the solid state from previously existing rocks in response to pronounced changes in temperature, pressure, and chemical environment. mineralized (water) Water that contains a large amount of salts. Miocene Division of geologic time between 5 and 24 million years ago. Falls chronologically after the Oligocene and before the Pliocene. Included in the Tertiary. mudstone Includes clay, silt, siltstone, claystone, and shale; usually used when the precise identification of a deposit is in doubt. municipal well A high-yield well used to supply water to an urban area. nitrate (NO3) A mineral compound characterized by a fundamental anionic structure of NO3. Nitrate may be an indicator of ground water pollution. Oligocene Division of geologic time between 24 and 38 million years ago. Falls chronologically after the Eocene and before the Miocene. Included in the Tertiary. Paleocene Division of geologic time between 55 and 66 million years ago. Falls chronologically after the Cretaceous and before the Eocene. Paleocene is included in the Tertiary. perennial stream A stream that flows year-round and has a minimum flow of 0.04 cubic meter per second. A perennial stream is usually fed by ground water, and its water surface generally starts at a lower level than that of the water table in the area. permeability (rock) The property or capacity of a porous rock for transmitting a fluid. Permeability is a measure of the relative ease of fluid flow under unequal pressure. The customary unit of measure is a millidarcy. pH Hydrogen-ion concentration: a measure of the acidity or basicity of a solution. pillow lava A general term for those lavas displaying pillow structure and considered to have formed under water; usually basaltic or andesitic. plateau A relatively elevated area of comparatively flat land. Pleistocene Division of geologic time between 10,000 and 1.6 million years ago. Falls chronologically after the Pliocene and before the Holocene. Pleistocene is included in the Tertiary. Pliocene Division of geologic time between 1.6 million and 5 million years ago. Falls chronologically after the Miocene and before the Pleistocene. Included in the Tertiary. porosity The ratio of the volume of the openings (voids, pores) in a rock or soil to its total volume. Porosity is usually stated as a percentage. Primary/original porosity developed during the final stages of sedimentation or was present within the sedimentary particulars at the time of deposition. Secondary porosity formed after sedimentation. potable water Describes water that does not contain objectionable pollution, contamination, minerals, or infective agents and is considered satisfactory for domestic consumption. potassium (K) An important and abundant alkali metal found in water that is essential in plant and animal nutrition. quartz diorite A hard, crystalline, igneous rock, massively bedded, light to dark gray, medium to coarse grained, and often foliated. Quartz diorite is also known as tonalite. quartzite An extremely hard, fine to coarsely granular massive rock which forms from sandstone. Quartzite is one of the hardest, toughest, and most durable rocks. Quartzite is poor as an aquifer unless highly fractured. Quaternary A division of geologic time from the present to 1.6 million years ago, during which certain rocks were formed or sediments deposited. Falls chronologically after the Tertiary. Includes the Pleistocene and Holocene. Quaternary is the youngest division of the Cenozoic. B-4  Water Resources Assessment of Haiti rain shadow A dry region on the lee (or sheltered) side of a topographical obstacle, usually a mountain range, where the rainfall is noticeably less than on the windward side. recharge Addition of water to the zone of saturation from precipitation, infiltration from surface streams, and other sources. recharge area An area in which water is absorbed that eventually reaches the zone of saturation in one or more aquifers. reef/coral reef A ridge or mount of limestone. The upper surface lies near the level of the seas and is formed by the action of reef-building coral organism. reservoir A pond, lake, tank, basin, or other space that is used for storage, regulation, and control of water for recreation, power, flood control, or drinking. A reservoir can be either natural or manmade. runoff That portion of the precipitation in a drainage area that is discharged from the area in stream channels. Types include surface runoff, ground water runoff, and seepage. saline water Water containing greater than 15,000 milligrams per liter of total dissolved solids. Saline water is undrinkable without treatment. saltwater intrusion/ saline- Displacement of fresh surface or ground water by the advance of salt water due to its water intrusion greater density. Saltwater intrusion usually occurs in coastal and estuarine areas where it contaminates fresh water wells. sandstone A soft to moderately hard sedimentary rock composed primarily of cemented quartz grains. The harder, massive rock is generally good for most construction uses. Many aquifers and oil reservoirs are sandstone. sandy limestone Limestone interbedded with sand. schist A fine- to coarse- grained, foliated, metamorphic rock composed of discontinuous thin layers of parallel minerals. sedimentary (rocks) A class of rocks formed from the accumulation and solidification of a variety of sediments. shale A soft to moderately hard sedimentary rock composed of very fine-grained quartz particles. Shale often weathers or breaks into very thin platy pieces or flakes. In most places, it can be excavated without drilling and blasting. Due to weakness and lack of durability, it makes very poor construction material. Shale is a confining bed to many aquifers in sedimentary rock. siltstone A fine-grained, moderately hard, sedimentary rock that is thin bedded to massive. Siltstone is distinguished from shale because it has a slightly larger grain size. sinkhole A funnel-shaped depression in the Earth's surface formed in a soluble rock by water. sluiceway An artificial channel for conducting water with a valve or gate to regulate the flow. sodium (Na) Most important and abundant alkali metal found in natural waters. Sodium can be an indicator of sewage and industrial waste contamination. solution cavities Caves or channels in limestone formed by the effects of carbonic acid over a period of thousands or millions of years. spring A place where ground water flows naturally from a rock or the soil onto the land surface or into a body of surface water. storm surge Wind-driven oceanic waves that flood low coasts not ordinarily subject to overflow. sulfate (SO4) A salt of sulfuric acid containing the divalent negative radical SO4. swamp An area of moist or wet land with water standing on or just below the surface of the ground. Usually covered with a heavy and dense growth of vegetation. tactical well Generally a well with an electrical pump capable of yielding greater than 3.35 liters per second. In military operations, a well capable of supplying the raw water needs of a 600-gallon per hour reverse osmosis water purification unit (ROWPU). Tertiary A division of geologic time from 1.6 to 66 million years ago, during which certain rocks were formed. Falls chronologically after the Cretaceous and before the Quaternary. Includes the Paleocene, Eocene, Miocene, and Pliocene. Is the oldest division of the Cenozoic. Outside the United States is sometimes divided into the Paleogene and Neogene. total dissolved solids (TDS) The sum of all dissolved solids in water or wastewater. B-5  Water Resources Assessment of Haiti total suspended solids (TSS) The sum of insoluble solids that either float on the surface or are suspended in water, wastewater, or other liquids. trade wind A major system of tropical winds moving from the subtropical highs to the equatorial low-pressure belt. It is northeasterly in the Northern Hemisphere and southeasterly in the Southern Hemisphere. tropical maritime A type of warm, wet air mass originating at low latitudes over ocean areas. tributary Stream or other body of water, surface or underground, which contributes its water to another larger stream or body of water. tuff A fine-grained, mostly light-colored, soft, porous rock composed of small volcanic rock fragments and ash moderately compacted forming a texture more characteristic of sedimentary rocks. turbidity A measure of the reduction in water clarity. Unclear or muddy water is caused by suspended particles of sand, silt, clay, or organic matter. Excessive turbidity must be removed to make water potable. unconsolidated Loose, soft, or liquid earth materials that are not firm or compacted. wastewater The spent or used water from a community or industry, which contains dissolved and suspended matter. water points The location where equipment is set up to gather water for purification and distribution. watershed The area contained within a drainage divide above a specified point on a stream. water table The depth or level below which the ground is saturated with water. weathering Physical and chemical changes that atmospheric agents produce in rocks or other deposits at or near the Earth’s surface. These changes result in disintegration or decomposition of material into soil. well Artificial excavation that derives water from the interstices of the rocks or soil which it penetrates. wetlands A lowland area, such as a marsh, swamp, or seasonally unedited area that is saturated with moisture. windward The side of an object or hill located toward the direction from which the wind is blowing. yield or well yield The volume of water produced from a well. Reported as liters per second (L/s) or gallons per minute (gal/min). B-6  APPENDIX C Surface Water and Groundwater Resources Tables and Figures Prepared by: U.S. Army Topographic Engineering Center Operations Division Hydrologic Analysis Branch 7701 Telegraph Road Alexandria, VA 22315-3864  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks 1 Major perennial Moderate to very large Water is fresh. Access to and Rivière de Fresh water streams, lakes, and quantities are available Domestic wastewater development of l’Artibonite is the perennially lagoons. year-round. High flow and agricultural runoff water points are largest stream in available period generally occurs cause biological principally Haiti. Lac de from May to October. contamination near influenced by Péligre covers Discharge for a selected and downriver from topography, 30 km2 and is stream gaging station is populated places. ground cover, and used for flood listed below under its Biological the transportation control, irrigation, drainage basin. Due to contamination from network. and hydroelectric increased runoff caused untreated domestic Conditions power generation. by deforestation, average wastewater is a hindering access After heavy rains, and peak discharge serious problem. include high steep the rivers rise values can be assumed to Chemical banks, dense rapidly with swift be larger than reported contamination may be vegetation, and currents and historical values. a problem near major extensive floating debris cities and industrial wetlands. Rivière that can damage Also listed is information sites. de l’Artibonite or destroy water on the major lake under upstream from Lac points. Protection its basin. Accelerated soil erosion caused by de Péligre is of equipment deforestation has deeply incised. against flooding greatly increased the Near the coast are and debris from volume of sediment large swampy intense tropical carried by the areas. The storms is streams. The very shoreline of Lac de required. high level of total Péligre is rocky, Seasonal suspended solids steep, and maintenance of (TSS) in streams can irregular. intake equipment clog and damage along channels water purification carrying high equipment. sediment loads is advised to counter rapid silting. 2 Major perennial Small to very large Water is fresh. Access to and In the Estère Fresh water streams and lakes. quantities are available Domestic wastewater development of Basin (X), the perennially year-round. Very large and agricultural runoff water points are Rivière de l’Estère available quantities are available cause biological principally has been during the high flow contamination near influenced by completely period that generally and downriver from topography, reworked for occurs from May to populated places. ground cover, and irrigation. October. Biological the transportation After heavy rains, Selected stream gaging contamination from network. the rivers rise stations are listed below untreated domestic Conditions rapidly with swift under their respective wastewater is a hindering access currents and drainage basins. Due to serious problem. include high steep floating debris increased runoff caused Chemical banks, dense that can damage by deforestation, average contamination may be vegetation, and or destroy water and peak discharge a problem near major extensive points. Protection values can be assumed to cities and industrial wetlands. For most of equipment be larger than reported sites. areas, the stream against flooding historical values. Accelerated soil valleys are narrow and debris from erosion caused by and incised. intense tropical deforestation has storms is greatly increased the required. volume of sediment Seasonal C-1  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks measured at Paulin volume of sediment Seasonal Rivière Bouyaha Lacorne (1956N07256W) carried by the maintenance of (1910N07204W). from 1965 to 1967, streams. The very intake equipment 2 ranged from 2.65 to high level of TSS in along channels Fresh water 527 m3/s and averaged streams can clog and carrying high perennially 13.13 m3/s. damage water sediment loads is available purification equipment. advised to (continued) counter rapid silting. Perennial streams Very small to very large Water is fresh. Access to and In the Cayes 3 and lakes. quantities are available Domestic wastewater development of Zone (XXIV), year-round. Very large and agricultural runoff water points are Rivière de l’Islet Fresh water quantities are available cause biological principally and Rivière de perennially during the high flow contamination near influenced by Torbeck may available period, which generally and downriver from topography, disappear and occurs from June to populated places. ground cover, and reappear again October, except in Biological the transportation before reaching southern Haiti where high contamination from network. the coast. flows generally occur from untreated domestic Conditions After heavy rains, May to June and from wastewater is a hindering access the rivers rise October to November. serious problem. include high steep rapidly with swift Selected stream gaging Chemical banks, dense currents and stations are listed below contamination may be vegetation, and floating debris under their respective a problem near major extensive that can damage drainage basins. Due to cities and industrial wetlands. or destroy water increased runoff caused sites. In the Limbé Basin points. Protection by deforestation, average Accelerated soil (VI), streams are of equipment and peak discharge erosion caused by well incised in against flooding values can be assumed to deforestation has deep narrow and debris from be larger than reported greatly increased the valleys separated intense tropical historical values. volume of sediment by steep hills. The storms is carried by the Rivière du Limbé required. streams. The very changes course Seasonal high level of TSS in frequently and is maintenance of streams can clog and obstructed by intake equipment damage water alluvium after large along channels purification equipment floods The lower carrying high C-2  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks (1910N07204W), measured at Pont Gros purification equipment. floods. The lower carrying high 3 Rivière de Fer à Morne (1939N07239W) part of this basin is sediment loads is Cheval from 1923 to 1940 and poorly drained and advised to Fresh water (1850N07206W), from 1962 to 1966, swampy. counter rapid perennially Rivière Guayamouc ranged from 0.3 to silting. available 3 In the Saint-Marc- (1859N07152W), 1,500 m /s and averaged Duvalierville Zone 3 (continued) and Rivière Lociane 6.95 m /s. (XII) and Roseaux- (1915N07250W). Voldrogue Zone (XXV), access may be difficult because streams lie in deeply incised valleys. In the Cul-de-Sac Zone (XIII), streams may be narrow and deep. C-3  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks Cayes Zone (XXIV) ranged from 0.6 to 3 3 (1818N07350W): 420 m /s and averaged Rivière de l’Acul 5.88 m3/s. Fresh water perennially (1807N07351W), available Rivière de l’Islet (1811N07344W), (continued) Ravine du Sud (1811N07345W), and Rivière de Torbeck (1810N07349W). C-4  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks measured at Passe Ranja 3 (1836N07408W) from 1925 to 1931, ranged Fresh water from 0.7 to 850 m3/s and perennially averaged 26.85 m3/s. available (continued) Perennial streams Meager to large quantities Water is fresh. Access to and In the Fond 4 and lakes. available year-round. Domestic wastewater development of Verrettes Zone Large quantities available and agricultural runoff water points are (XIV), Rivière Fresh water during the high flow cause biological principally Soliette is fed by seasonally period generally from May contamination near influenced by Source Miel available to October, except in and downriver from topography, (1820N07151W). southern Haiti where high populated places. ground cover, and In the Corail-Anse flows generally occur from Biological the transportation à Veau Zone May to June and from contamination from network. (XXIII), the October to November. untreated domestic Conditions Rivière des Selected stream gaging wastewater is a hindering access Baradères stations are listed below serious problem. include high steep disappears into a under their respective Chemical banks, dense limestone drainage basins. Due to contamination may be vegetation, and depression. increased runoff caused a problem near major extensive After heavy rains, by deforestation, average cities and industrial wetlands. sites. the rivers rise and peak discharge In the Trois rapidly with swift values can be assumed to Accelerated soil Rivières Basin (III), currents and be larger than reported erosion caused by access to Les floating debris historical values. deforestation has Trois Rivières may that can damage greatly increased the be difficult due to or destroy water volume of sediment very rugged terrain points. Protection carried by the and deeply incised of equipment streams. The very stream valleys against flooding high level of TSS in separated by and debris from streams can clog and scarped hills. intense tropical damage water In the Port-de- storms is purification equipment. Paix-Port Margot required. Zone (IV), streams Seasonal are moderately to maintenance of deeply incised intake equipment except for Rivière along channels de Port Margot, carrying high which lies in a sediment loads is large valley. advised to In the Cap-Haïtien counter rapid Zone (VII), access silting. to the Rivière Galois (Haut de Cap) may be difficult due to swampy areas. In the Fond Verrettes Zone (XIV), access to Rivière Soliette may be difficult due to steep valley walls. Access is difficult C-5  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks 3 Fond Verrettes from 0.05 to 450 m /s and in the Cayes Zone (XIV) averaged 5.34 m3/s. Jacmel-Anse à (1853N07153W): Pitres Zone (XV) 4 due to narrow Rivière Soliette Fresh water steep grades. (1830N07151W). seasonally Streams in the available Saint Louis du (continued) Sud-Aquin Zone (XX) are deeply incised and have torrential flows. Access to streams in the Corail-Anse à Veau Zone (XXIII), the Jérémie-Les Irois Zone (XXVII), and the Tiburon-St. Jean Zone (XXVIII) may be difficult because streams are incised in deep narrow valleys. C-6  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks Rivière de Dame Marie (1834N07425W). 4 Fresh water seasonally available (continued) Intermittent streams Meager to very large Water is generally Access to and After heavy rains, 5 and lakes. quantities are available fresh. Some development of the rivers rise during the high flow intermittent streams water points are rapidly with swift Fresh water period from May to and small ponds may influenced by currents and seasonally October, except in temporarily become topography, floating debris available southern Haiti where high brackish during the ground cover, and that can damage flows generally occur from low flow period. the amount of time or destroy water May to June and from Streams may become non-oceanic points. Protection October to November. turbid during and surface water is of equipment Streams are usually dry following heavy available. Access against flooding during part of the year. rainfall. Domestic to most intermittent and debris from wastewater and streams may be intense tropical agricultural runoff difficult due to storms is cause biological steep-sided valley required. contamination near walls. Seasonal and downriver from maintenance of populated places. intake equipment Biological along channels contamination from carrying high untreated domestic sediment loads is wastewater is a advised to serious problem. counter rapid Chemical silting. contamination may be a problem near major cities and industrial sites. Accelerated soil erosion caused by deforestation has greatly increased the volume of sediment carried by the streams. The very high level of TSS in streams can clog and damage water purification equipment. C-7  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks (island) (1837N07345W). 5 Fresh water seasonally available 6 Brackish and Moderate to enormous Water is brackish to Access to and The surface area Fresh water saltwater lakes: quantities of brackish to saline. TDS values for development of of Étang scarce or saline water available the Étang Saumâtre water points are Saumâtre is about lacking year-round. Mangrove range from 7,500 to influenced by 181 km2. After swamps and marshy 10,650 mg/L; topography, heavy rains, the areas occur sporadically Cl values range from ground cover, and rivers rise rapidly along the coast. 3,400 to 6,100 mg/L, the amount of time with swift currents while SO4 values vary non-oceanic and floating between 450 and surface water is debris that can 525 mg/L. available. Access damage or Trou Caïman has TDS to Étang Saumâtre destroy water of 4,757 mg/L, Cl of may be difficult due points. Protection 1,770 mg/L, and SO4 to a marshy of equipment of 310 mg/L. shoreline. Access against flooding to many other and debris from Surface water is areas may be intense tropical generally saline and difficult due to storms is can contain large marshy ground. required. amounts of biological Seasonal wastes and oceanic maintenance of minerals. Biological intake equipment contamination from along channels untreated domestic carrying high wastewater is a sediment loads is serious problem. advised to Chemical counter rapid contamination may be silting. a problem near major cities and industrial sites. Accelerated soil erosion caused by deforestation has greatly increased the volume of sediment carried by the streams. The very high level of TSS in streams can clog and damage water purification equipment. C-8  Water Resources Assessment of Haiti Table C-1. Surface Water Resources (continued) Map Unit 1 (See Fig. C-1) Sources Quantity Quality2 Accessibility Remarks Limonade- Ouanaminthe Zone (IX): Along the coast. 6 Fresh water scarce or lacking (continued) 1 Quantitative Terms: 3 Enormous = >5,000 cubic meters per second (m /s) 3 (176,550 cubic feet per second (ft /s)) 3 3 Very large = >500 to 5,000 m /s (17,655 to 176,550 ft /s) 3 3 Large = >100 to 500 m /s (3,530 to 17,655 ft /s) 3 3 Moderate = >10 to 100 m /s (350 to 3,530 ft /s) 3 3 Small = >1 to 10 m /s (35 to 350 ft /s) 3 3 Very small = >0.1 to 1 m /s (3.5 to 35 ft /s) 3 3 Meager = <0.1 m /s (3.5 ft /s) 2 Qualitative Terms: Fresh water = maximum TDS <1,000 mg/L; maximum chlorides (Cl), <600 mg/L; maximum sulfates (SO4), <300 mg/L Brackish water = maximum TDS >1,000 mg/L but <15,000 mg/L Saline water = TDS >15,000 mg/L Conversion Chart: To Convert Multiply By To Obtain cubic meters per second 15,800 gallons per minute cubic meters per second 60,000 liters per minute cubic meters per second 35.31 cubic feet per second 3 Geographic coordinates list latitude first for the Northern (N) or Southern (S) Hemisphere and longitude second for the Eastern (E) or Western (W) Hemisphere. For example: Rivière de l’Artibonite………………………..(1915N07247W) Geographic coordinates for Rivière de l'Artibonite that are given as 1915N07247W equal 19°15' N, 72°47' W and can be written as a latitude of 19 degrees and 15 minutes north and a longitude of 72 degrees and 47 minutes west. Coordinates are approximate. Geographic coordinates are sufficiently accurate for locating features on the country scale map. Geographic coordinates for rivers are generally at the river mouth. 2 3 Note: km = square kilometers Mm = million cubic meters Cl = chloride L/s = liters per second SO4 = sulfate 3 3 ft /s = cubic feet per second m /s = cubic meters per second TDS = total dissolved solids gal/min = gallons per minute mg/L = milligrams per liter TSS = total suspended solids C-9  Water Resources Assessment of Haiti Table C-2. Ground Water Resources Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Aquifers consist of Small to enormous Water is fresh with Most drilled wells These alluvial 1 Quaternary alluvium quantities are TDS values typically are between 26 deposits are widely found in the Plaine du available. Well <800 mg/L. Away from and 120 m deep. tapped for Fresh water Nord yields are the coast, TDS values Wells can be domestic supply generally 3 (1940N07210W) , the generally between generally range from >200 m deep. and locally by plentiful Rivière de l’Artibonite 4 and 100 L/s. 300 to 600 mg/L. Hand-dug wells irrigation wells. valley Locally, wells may Water quality data fromare generally Nearly all areas are (1915N07247W), have yields selected wells are <35 m deep. suitable for hand Plaine du Gonaïves >150 L/s. listed below. Depth to water is pump or tactical (1930N07240W), Yields from usually between 5 wells. Many areas Plaine du Cul-de-Sac 1 Well near Quartier and 50 m but can selected wells are Morin: are suitable for (1836N07210W), listed below. be >150 m. In the high-yield Plaine des Cayes TDS 230 mg/L, Plaine du Nord, municipal and (1814N07346W), and 1 Well near pH 8.53, depth to water is Quartier Morin irrigation wells. in most other river temperature 26 °C, usually between 5 valleys and coastal (1942N07209W): Ca 2.85 mg/L, and 25 m. In the Aquifers are plains. In the Plaine du 15 L/s; Mg 15.73 mg/L, Rivière de generally Nord, the Plaine du 2 Well near La Na 21.64 mg/L, l'Artibonite valley, recharged by runoff Cul-de-Sac, the Rivière Rue K 1.05 mg/L, depth to water is from the mountains de l’Artibonite valley, (1943N07211W): HCO3 195.25 mg/L, usually between and locally by and in the Plaine des 12 L/s; Cl 13.4 mg/L, 20 and 40 m. In rainfall. Cayes, the alluvium is 3 Well near Aufilier SO4 15.88 mg/L, the Plaine du Cul- Deforestation is generally >100 m thick (1928N07239W): NO 3 3.4 mg/L. de-Sac, depth to increasing runoff and may be up to 76 L/s; 3 Well near Aufilier: water is usually and decreasing the 300 m thick. In the between 30 and amount of water 4 Well near Haut TDS 690 mg/L, pH 7.3, available for smaller river valleys 50 m. In the Saut d’Eau Ca-Mg 45 mg/L, recharge. and coastal plains, the Plaine des Cayes, (1849N07212W): Na 56 mg/L, alluvium is generally depth to water Deforestation and 25 L/s; HCO3 380 mg/L, <40 m thick, but can can be as great overuse are 5 Well near Port- Cl 90 mg/L, be locally much as 150 m. In other lowering yields, au-Prince SO4 180 mg/L. thicker. Ground water alluvial deposits, dropping water in the alluvial deposits (1832N07220W): 4 Well near Haut Saut depth to water is levels, degrading is typically found in 1- 96 L/s; d’Eau: generally between water quality, and to 8-m-thick layers of 6 Well near TDS 186 mg/L, 2 and 15 m. increasing the sand and gravel that Lamartinière pH 7.86, Seasonally, amount of are separated by (1836N07212W): temperature 22 °C, fluctuation of the seasonal layers of silt and clay. 25.2 L/s; and Ca 40 mg/L, water table can fluctuation. Near the city of Jacmel Mg 9.42 mg/L, be >4 m. 7 Well near Les (1814N07232W), in Na 1.49 mg/L, Cayes Access is parts of the Plaine du K 0.33 mg/L, (1812N07345W): generally feasible Cul-de-Sac and in HCO3 163.23 mg/L, 4 L/s. but is locally other isolated areas, Cl 1.92 mg/L, the aquifers include difficult to very SO4 2.14 mg/L, very porous and difficult. Along the NO3 2.8 mg/L. permeable Pleistocene coast, swampy 5 Well near Port-au- ground may reef and carbonate Prince: deposits. These hinder access. In deposits are generally TDS 396 mg/L, urban areas, between 25 and 50 m Ca 33 mg/L, congestion may thick. The Plaine du HCO3 169 mg/L, hinder access Nord is in the Nord Cl 20 mg/L, SO4 trace, and limit the (1936N07218W) and NO3 1 mg/L. availability of well Nord-Est sites. 6 Well near (1932N07142W) Lamartinière: The country’s departments. The overall poor road TDS 348 mg/L, Rivière de l’Artibonite network may also Ca 39 mg/L, valley is in the hinder access. Mg 9 mg/L, Cl 84 mg/L, Artibonite C-10  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Artibonite SO4 36 mg/L, Generally, soft 1 (1920N07230W) and NO3 1.5 mg/L, rock drilling Centre hardness 250 mg/L techniques can Fresh water (1900N07200W) CaCO3. be used. generally departments. The plentiful 7 Well near Les Cayes: Plaine du Gonaïves is (continued) in the Artibonite TDS 315 mg/L, department. The Cl 15 mg/L, hardness Plaine du Cul-de-Sac 220 mg/L CaCO3. is in the Ouest Near the coast, (1840N07220W) overuse is causing an department. The city of increase in saltwater Jacmel is in the Sud- intrusion. The main Est (1818N07224W) pollution problem is department. The biological Plaine des Cayes is in contamination from the Sud human and animal (1815N07340W) wastes. Chemical department. contamination is increasing, especially near the major towns. Shallow aquifers are generally contaminated. The aquifers consist Unsuitable to Water is fresh with Most wells are Most areas may 2 of Pleistocene reef enormous TDS ranging from 130 between 15 and be suitable for deposits or karstic quantities are to 940 mg/L. Most 200 m deep. hand pump wells. Fresh water and highly fractured available. Yields wells have TDS Locally, Well sites on locally limestones. These range from <0.1 values of <500 mg/L. especially in the large fractures or plentiful deposits form the to 3,000 L/s. The water is generally mountains, wells solution cavities most extensive Average spring very hard and high in may be >200 m. may be suitable aquifer system in the yields are pH, bicarbonate, Average well for tactical, high- country. This system between 20 and calcium, and depth is about yield municipal, stores and transmits 50 L/s, but can magnesium. 110 m. Depth to and irrigation water through be >100 L/s. Water quality data water is usually wells. systems of fractures Drilled wells from selected springs between 5 and In the mountains, and solution cavities. average from 1 to and wells are listed 25 m, but locally few successful The Pleistocene reef 60 L/s. Locally, below. may be much wells have been deposits are up to wells may have deeper. In the drilled due to the yields >100 L/s. 8 Spring near Fond mountains, 300 m thick and Pomme: excessive depth consist of weathered Yields from depth to water is to water. TDS 360 mg/L, usually between and fractured selected springs pH 7.52, Successful wells limestone. The reef and wells are 100 and 200 m. temperature 27 °C, in these areas deposits are mainly in listed below. Ca 63.23 mg/L, Seasonally, depend upon the Plateau de 8 Spring near Mg 10.27 mg/L, fluctuation of the encountering Bombardopolis Fond Pomme Na 33.98 mg/L, water table can water-bearing (1945N07320W) of (1947N07320W): K 2.35 mg/L, be >15 m. fractures. Using the Nord-Ouest 8 L/s; HCO3 189.16 mg/L, Access is remote sensing (1945N07305W) Cl 61 mg/L, generally difficult techniques to department; in the Île 9 Spring near Rouffer Quinte SO4 22 mg/L, to very difficult. identify potential de la Tortue NO3 28.35 mg/L. The country’s fracture zones (2004N07249W); in (1922N07231W): 60 L/s; 9 Spring near Rouffer overall poor road before drilling the Île de la Gonâve network, steep should improve (1851N07303W); and 10 Spring near Quinte: slopes, and chances for in parts of the coastal Coupe à l’Inde TDS 235 mg/L, rugged terrain successful wells. area of the Artibonite, (1917N07231W): temperature 25 ºC. may hinder If possible, wells G d’ A 15 L/ C-11  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Grand’ Anse 15 L/s; 10 Spring at Coupe à access and limit should be sited on 2 (1830N07340W), 11 Well near l’Inde: the availability of fracture Ouest, Sud, and Sud- Jeanton TDS 353 mg/L, well sites. intersections. Fresh water Est departments. locally (1904N07243W): pH 7.45, Generally, hard Aquifers in the plentiful The karstic and highly 100 L/s; and temperature 25 °C, rock drilling mountains are (continued) fractured limestone 12 Spring Jet techniques must generally locally aquifers are in units Ca 71.54 mg/L, be used. Drilling recharged by d’Eau ranging in age from Mg 13.62 mg/L, may be difficult rainfall, while (1817N07224W): the Cretaceous to the 300 to 400 L/s. Na 6.71 mg/L, because highly those in the Eocene. These fractured zones lowlands are K 0.9 mg/L, formations generally may cause recharged by have been strongly HCO3 286.79 mg/L, excessive loss of runoff from the deformed by folding Cl 50 mg/L, drilling fluids and mountains. and faulting. SO4 7.18 mg/L, may cause the Deforestation is These aquifers are in hole to collapse. increasing runoff NO3 22.57 mg/L. the Cretaceous and decreasing Macaya Formation 11 Well near Jeanton: the amount of and in the upper parts TDS 160 mg/L, water available for of the Paleocene- pH 7.88, recharge. early Eocene Marigot temperature 24 °C, Deforestation and Formation, the Ca 8.9 mg/L, overuse are Eocene Abuillot Mg 0.4 mg/L, lowering yields, Formation, and the dropping water Na 2.3 mg/L, Middle Eocene levels, degrading Plaisance Formation. K 4.4 mg/L, water quality, and Aquifers of this type HCO3 2.9 mg/L, increasing the are also locally in Cl 6.5 mg/L, several other SO4 140.3 mg/L, formations. amount of CaCO3 5.3 mg/L. seasonal The Cretaceous fluctuation. Macaya Formation is estimated to be The main pollution <1,000 m thick. It problem is biological consists of massive contamination from limestone beds human and animal separated by clay and wastes. Chemical sandy limestone contamination is layers. The Macaya limited due to the lack Formation is found in of industrial activity the Grand’Anse, and limited use of Ouest, and Sud agrochemicals. Most departments. shallow aquifers are The Paleocene-early contaminated. Eocene Marigot Formation is between 900 and 1,000 m thick. The upper part of the formation consists of varying beds of limestone, chalky limestone, and clastic limestones. The Marigot Formation is found in the Grand’Anse, C-12  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Ouest, Sud, and Sud- Est departments. 2 The Eocene Abuillot Formation can be up Fresh water to 1,000 m thick. It locally consists of plentiful limestones, sandy (continued) shales, sandstones, and shales. Only the limestone portion of the Abuillot Formation is karstic and highly fractured. The Abuillot Formation is found in the Artibonite, Centre (1900N07200W), Nord, and Nord-Est departments. The Middle Eocene Plaisance Formation is generally <500 m thick and consists primarily of thick- bedded limestone. The lower part consists of conglomerates, limestone, and shale. The Plaisance Formation is principally in the Artibonite and Nord- Ouest departments. Aquifers consist of Unsuitable to Water is fresh with Most wells are Some areas may 3 fractured limestones, moderate TDS values ranging >200 m. Depth be suitable for sandstones, quantities are from 150 to 800 mg/L. to water is hand pump wells. Fresh water conglomerates, and available. Yields Most springs and usually between Well sites on locally schists. These units range from <0.1 wells have TDS 5 and 50 m. In fractures or plentiful are generally to 25 L/s. values between 150 the mountains, solution cavities interbedded with Average yields and 500 mg/L. The depth to water is may be suitable shales, siltstones, are between 0.1 water is generally usually between for tactical wells. marls, and chalks. and 25 L/s. very hard and high in 100 and 200 m. Most areas are Typically, these rocks Locally, wells pH, bicarbonate, Seasonally, not suitable for are not very porous or may have yields calcium, and depth to water high-yield permeable and have >25 L/s. magnesium. can fluctuate as municipal and not been strongly Yields from Water quality data much as 15 m. irrigation wells. In deformed by folding selected springs from selected springs Fracture zones the mountains, and faulting. This lack and wells are and wells are listed are generally few successful of deformation results listed below. below. more prevalent wells have been in only localized areas near the surface drilled due to 13 Spring near 13 Spring near Petit excessive depth that contain fractures. Petit Bourg du Bourg du Borgne: and less likely at Yields vary greatly depths >60 m. to water. Borgne TDS 207 mg/L, within these units. (1949N07234W): Access is Successful wells The aquifers include 1.5 L/s; pH 8.16, generally difficult in these areas parts of several temperature 26 °C, to very difficult. depend upon 14 Spring near encountering l i f ti Th t ’ C-13  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks geologic formations Nan Tinte Ca 2.7 mg/L, The country’s encountering ranging in age from (1950N07306W): Mg 4.04 mg/L, overall poor road water-bearing the Cretaceous to the 1 L/s; network, steep fractures. Using 3 Miocene. Na 11.46 mg/L, slopes, and remote sensing 15 Spring near Fresh water The major rock units K 0.86 mg/L, rugged terrain techniques to Castel locally containing these HCO3 176.96 mg/L, may hinder identify potential (1819N07235W): plentiful aquifers include the access and limit fracture zones 10 L/s; Cl 13.5 mg/L, (continued) Paleocene-early the availability of before drilling 16 Spring near SO4 9.55 mg/L, well sites. should improve Eocene Marigot Pition Remard Formation, the NO3 4.9 mg/L. Generally, hard chances for (1818N07255W): successful wells. Eocene Abuillot 1.75 L/s; and 14 Spring near Nan rock drilling Formation, the Tinte: techniques must If possible, wells Oligocene-Miocene 17 Spring near be used. Drilling should be sited on Monnery TDS 469 mg/L, fracture Artibonite Group, and may be difficult the Miocene La Crete (1830N07332W): pH 7.66, because highly intersections. Formation. Other 10 L/s. temperature 30 °C, fractured zones Aquifers are formations containing Ca 63.57 mg/L, may cause generally locally these aquifers include excessive loss of recharged by Mg 14.32 mg/L, the Cretaceous Beloc drilling fluids and rainfall. and Trois Rivières Na 51.76 mg/L, may cause the Deforestation is Formations, the K 3.86 mg/L, hole to collapse. increasing runoff Oligocene Jeremie HCO3 292.90 mg/L, and decreasing Formation, the lower the amount of parts of the Middle Cl 67.5 mg/L, water available for Eocene Plaisance SO4 31 mg/L, recharge. Formation, and locally NO3 12.83 mg/L. other formations. Deforestation and 16 Spring near Pition overuse are The Paleocene-early Remard: lowering yields, Eocene Marigot dropping water TDS 235 mg/L, Formation is between levels, degrading 900 and 1,000 m pH 7.4, water quality, and thick. The lower part temperature 24 °C. increasing the of the formation amount of 17 Spring near consists of varying seasonal Monnery has TDS beds of fluctuation. 158 mg/L. conglomerates, sandy shales, calcareous 18 Well near Jeremie sandstones, and (1834N07410W): clastic limestones. pH 7.4, The Marigot temperature 30 °C, Formation is found in Ca 63.57 mg/L, the Grand’Anse, Mg 0.03 mg/L, Ouest, Sud, and Sud- Na 64 mg/L, Est departments. Fe 0.12 mg/L, The Eocene Abuillot Cl 250 mg/L, Formation can be up SO4 20 mg/L, to 1,000 m thick. It NO3 5.6 mg/L, consists of hardness 427 mg/L limestones, sandy CaCO3. shales, sandstones, and shales. This type of aquifer is generally The main pollution found in parts of the problem is biological Abuillot Formation contamination from consisting of human and animal sandstones and wastes. Chemical C-14  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks sandy shales. The contamination is Abuillot Formation is limited due to lack of found in the industrial activity and Artibonite, Centre, limited use of 3 Nord, and Nord-Est agrochemicals. Most Fresh water departments. The shallow aquifers are locally Oligocene-Miocene contaminated. plentiful Artibonite Group consists of the Arc, (continued) Madame Joie, and Thomonde Formations. The Artibonite Group is >2,700 m thick. It consists of shale, siltstones, bedded limestones, conglomerates, sandstones, and marl. The Artibonite Group is principally found in the Artibonite, Centre, Nord, and Nord-Est departments. The Miocene La Crete Formation is about 500 m thick. It consists of hard limestones, shaley limestones, marls, and sandstones. The La Crete Formation is principally found in the Artibonite, Centre, Nord, and Nord-Est departments. The minor formations are generally <150 m thick and have limited areal extent. These formations consist of thin conglomerates, chalk, weathered igneous rocks, schist, limestones, shale, siltstones, and sandstones. The Cretaceous Beloc Formation is found in the Sud-Est department. The Cretaceous Trois Rivières Formation is found locally in the Artibonite, Centre, C-15  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Nord, and Nord- Ouest departments. The Middle Eocene Plaisance Formation is in the Artibonite 3 and Nord-Ouest departments. The Fresh water Oligocene Jeremie locally Formation is in plentiful isolated areas in the (continued) Grand’Anse, Ouest, Sud, and Sud-Est departments. Aquifers consist of Unsuitable to Water is fresh with Most wells are Most areas may 4 low-permeability small quantities TDS generally >150 m. Locally, be unsuitable for shales, sandy shales, are available. <900 mg/L. Locally, wells may be hand pump wells, Fresh water consolidated Yields are mineralization may >200 m. Depth except where scarce or conglomerates, typically <5 L/s, make the water to water is fractures or lacking sandstones, marls, and most yields brackish with TDS as usually between weathered zones cherty limestones, are between 0.1 high as 1,200 mg/L. 5 and 50 m. In can be claystones, and and 2 L/s. Many Water quality data the mountains, intercepted during siltstones. Formations springs yield from selected springs depth to water is drilling. containing these <0.1 L/s. Locally, and wells are listed usually >100 m. Successful wells aquifers include the wells may have below. Seasonal in these areas Miocene Rivière Grise yields >10 L/s. fluctuation in the depend upon Formation, the 19 Spring near Nan water levels can encountering Yields from Ruche: Miocene-Pliocene Las selected springs be great. water-bearing Cashobas and Morne are listed below. TDS 784 mg/L, Fracture zones fractures. The Delmas Formations, pH 8.19, are generally best zones for the Pliocene Hinche 19 Spring near ground water Nan Ruche temperature 30 °C, more prevalent and Rivière Gauche near the surface exploration are Formations, and (1945N07301W): Ca 34.73 mg/L, generally in areas 0.1 L/s; and less likely at isolated zones in Mg 22.7 mg/L, depths >60 m. of intense several other geologic 20 Spring near Na 170.9 mg/L, fracturing. Using formations. Wallondry Access is remote sensing (1925N07213W): K 4.99 mg/L, generally difficult techniques to The Miocene Rivière to very difficult. Grise Formation 3 L/s; HCO3 274.59 mg/L, identify potential The country’s fracture zones consists of 21 Spring near Cl 184 mg/L, overall poor road conglomerates, Maissade before drilling SO4 7.2 mg/L, network, steep marls, and clays and (1910N07208W): should improve NO3 44.4 mg/L. slopes, and the chances for is about 400 m thick. 0.1 L/s; and rugged terrain It is principally in the 21 Spring near successful wells. 22 Spring near may hinder Ouest department. Maissade: Aquifers are Bois Pin access and limit The Miocene- (1852N07153W): TDS 615 mg/L, the availability of generally locally Pliocene Las 0.8 L/s. pH 7.23, well sites. recharged by Cashobas Formation rainfall. temperature 26.2 °C, Generally, hard- also includes the rock drilling Deforestation is Maissade Formation Ca 76.15 mg/L, increasing runoff techniques are as a sub-unit or Mg 41.34 mg/L, required. and decreasing member. The Las Na 35.51 mg/L, the amount of Cashobas Formation water available for K 0.55 mg/L, consists of tight recharge. conglomerates, thin HCO3 506.47 mg/L, C-16  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks sandstones, sandy Cl 2.39 mg/L, Deforestation and shales, and shales, SO4 7.56 mg/L, overuse are while the Maissade lowering yields, Formation consists of NO3 5.64 mg/L. dropping water 4 marls, sandstones, 22 Spring near Bois levels, degrading Fresh water and lignite. The Las Pin: water quality, and scarce or Cashobas Formation TDS 275 mg/L, increasing the lacking is between 1,400 and amount of pH 7.62, 1,850 m thick. It is seasonal (continued) Ca 64.13 mg/L, principally found in fluctuation. the Artibonite, Centre, Mg 5.47 mg/L, Nord, and Nord- Na 16.07 mg/L, Ouest departments. K 0.59 mg/L, The Miocene- Pliocene Morne HCO3 341.71 mg/L, Delmas Formation Cl 12.85 mg/L, and the Pliocene SO4 23.66 mg/L, Hinche and Rivière NO3 20.26 mg/L. Gauche Formations consist of The main pollution conglomerates, clays, problem is biological sandstones, and contamination from marls. The Morne human and animal Delmas Formation is wastes. The shallower between 300 and aquifers are typically 400 m thick and is contaminated near generally found in the and downslope of Ouest department. populated areas. The Hinche Formation is between 25 and 100 m thick. It is principally found in the Artibonite and Centre departments. The Rivière Gauche Formation is about 1,000 m thick and is principally found in the Grand’Anse, Ouest, Sud, and Sud- Est departments. Aquifers consist Unsuitable to Water is generally Most wells are Most areas are 5 mostly of Cretaceous small quantities fresh with TDS between 20 and unsuitable for to Quaternary are available. typically between 200 80 m deep. hand pump wells, Fresh water igneous rocks and Springs typically and 600 mg/L. Depth to water except where scarce or quartzite. The yield between may be >100 m. fractures or lacking Water quality data principal formations 0.05 and 1 L/s. from selected springs Fracture zones weathered zones are the Cretaceous Wells typically are listed below. are generally can be Dumisseau have yields of more prevalent intercepted during Formation; the <5 L/s. Wells 23 Spring Dieubonne: drilling. TDS 215 mg/L, near the surface Cretaceous Morne drilled into and less likely at Successful wells Cabrit, Terrier Rouge, fracture zones pH 7.95, in these areas temperature 23 °C, depths >60 m. La Mine, and may have greater depend upon Peraches series; the yields. Ca 12.02 mg/L, Access is encountering Eocene Perodin Mg 13.98 mg/L, generally difficult water-bearing Yields from Na 11.77 mg/L, to very difficult. Formation; the selected springs fractures. The C t t HCO3 122 14 mg/L The country’s b t f C-17  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Cretaceous to are listed below. HCO3 122.14 mg/L, The country’s best zones for Miocene intrusives of 23 Spring Source Cl 7.4 mg/L, overall poor road ground water the Batholite Loma de Dieubonne SO4 13.2 mg/L, network, steep exploration are Cabrera (1924N07205W): NO3 2.45 mg/L. slopes, and generally in areas (1930N07200W); and 0.1 L/s, and 24 Spring Mami: rugged terrain of intense 5 several undated TDS 552 mg/L, may hinder fracturing. Using formations. The 24 Spring Source access and limit remote sensing Fresh water Mami temperature 29.2 °C. igneous section the availability of techniques to scarce or (1823N07321W): Biological ranges from a few well sites. identify potential lacking 1 L/s. contamination may be meters to >1,500 m in Hard rock drilling fracture zones (continued) thickness. a problem near and before drilling downslope of techniques are The Dumisseau required. should improve populated areas. the chances for Formation consists of Chemical pillow lavas, basalt, successful wells. contamination is diabase, and volcanic limited due to lack of Aquifers are debris flows, industrial activity and generally locally interbedded with limited use of recharged by shales and agrochemicals. rainfall. limestones. It is found Only a few wells in the Grand’ Anse, have been drilled Ouest, Sud, and Sud- in these areas. Est departments. Deforestation is The Cretaceous increasing runoff Morne Cabrit, Terrier and decreasing Rouge, La Mine, and the amount of Peraches series water available for consist of tuff, recharge. andesite, quartz diorite, dacite, and Deforestation and basalt, which locally overuse are can be slightly lowering yields, metamorphosed. dropping water These series are levels, degrading found in the Centre, water quality, and Nord, and Nord-Est increasing the departments. amount of seasonal The Perodin fluctuation. Formation consists of basalt, andesite, and tuff interbedded with marls and limestones. It is in the Artibonite and Centre departments. The Batholite Loma de Cabrera consists of quartz diorites and granodiorites and is in the Nord and Nord- Est departments. Scattered throughout are other undated and unnamed igneous formations that consist primarily of C-18  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks basalt and are found within Cretaceous, Eocene, and Quaternary formations. Aquifers consist Very small to Water is generally Most drilled Most areas are 6 mostly of Quaternary very large brackish but locally wells are unsuitable for alluvium found in quantities are may be saline. TDS between 50 and wells due to the Fresh water Plaine du Nord available. Typical values are generally 100 m deep. brackish or saline scarce or surrounding Fort well yields are <7,000 mg/L. Along Hand-dug wells water. Water lacking Liberté, in the Rivière from 1 to 100 L/s. the coast, saltwater are generally should be treated de l’Artibonite delta, in Locally, wells intrusion causes the <35 m deep. to remove the large parts of the may have yields water to be brackish Depth to water is dissolved solids Plaine du Cul-de-Sac, >100 L/s. to saline. In parts of generally from before domestic around Étang Yields from the Plaine du Cul-de- 10 to 75 m. use. Saumâtre selected wells Sac, especially near Deforestation is (1835N07200W), and Étang Saumâtre, the Access is are listed below. generally decreasing the in other alluvial mineralized soil amount of water deposits along the 25 Well near causes the ground feasible but may Phaeton be locally difficult available for coast. In most coastal water to be brackish. recharge. areas, the alluvium is (1941N07154W): TDS levels may to very difficult. generally <30 m thick, 4.5 L/s; increase during the Along the coast, Deforestation and but in the Plaine du 26 Well near dry seasons when swampy ground overuse are Cul-de-Sac and Duclos recharge is minimal. may hinder increasing the Rivière de l’Artibonite (1917N07239W): access. In urban areas affected by Locally, other types of areas, saltwater delta, the alluvium 27 L/s; deposits may contain can be >100 m thick. congestion may intrusion. This is 27 Well with a brackish to saline hinder access causing many Locally, aquifers exist hand pump near water due to saltwater and limit the wells that once of other types of Port-au-Prince: intrusion. availability of produced fresh deposits, especially about 1 L/s; and Water quality data well sites. water to now permeable or 28 Well near from selected wells produce brackish fractured limestones. The country’s Source Sable are listed below. overall poor road to saline water. The Plaine du Nord is (1836N07204W): 25 Phaeton: network may in the Nord and Nord- 75.7 L/s. TDS 3,500 mg/L, also hinder Est departments. The pH 7.65, access. Rivière de l’Artibonite temperature 29.6 °C, delta is in the Generally, soft Ca 62.12 mg/L, rock drilling Artibonite Mg 107.62 mg/L, department. The techniques can Na 972.4 mg/L, be used. Plaine du Cul-de-Sac K 1.91 mg/L, and the Étang HCO3 845.13 mg/L, Saumâtre are in the Cl 630 mg/L, Ouest department. SO4 11.9 mg/L. 26 Well near Duclos: TDS 3,220 mg/L, pH 7.57, Ca 70.14 mg/L, Mg 11.55 mg/L, Na 577 mg/L, K 3.13 mg/L, HCO3 233.4 mg/L, Cl 875 mg/L, SO4 15 mg/L, NO3 2.73 mg/L. 27 Well near Port-au- C-19  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) Aspects of Map Unit Aquifer Ground Water 1 (See Fig. C-2) Characteristics Quantity Quality2 Development Remarks Prince: TDS 1,280 mg/L, Ca 54 mg/L, Mg 13 mg/L, Na 11.77 mg/L, HCO3 122.14 mg/L, Cl 850 mg/L, SO4 116 mg/L, 6 hardness 400 mg/L Fresh water CaCO3. scarce or lacking 28 Well near Source Sable: TDS 5,528 mg/L. Biological contamination from human and animal wastes is widespread. Chemical contamination is increasing, especially near major towns. Shallow aquifers are generally contaminated. 1 Quantitative Terms: Enormous = >100 liters per second (L/s) (1,600 gallons per minute (gal/min)) Very large = >50 to 100 L/s (800 to 1,600 gal/min) Large = >25 to 50 L/s (400 to 800 gal/min) Moderate = >10 to 25 L/s (160 to 400 gal/min) Small = >4 to 10 L/s (64 to 160 gal/min) Very small = >1 to 4 L/s (16 to 64 gal/min) Meager = >0.25 to 1 L/s (4 to 16 gal/min) Unsuitable = <0.25 L/s (4 gal/min) 2 Qualitative Terms: Fresh water = maximum TDS <1,000 mg/L; maximum chlorides (Cl), <600 mg/L; maximum sulfates (SO4), <300 mg/L Brackish water = maximum TDS >1,000 mg/L but<15,000 mg/L Saline water = TDS >15,000 mg/L Hardness Terms: Soft = 0 to 60 mg/L CaCO3 Moderately hard = 61 to 120 mg/L CaCO3 Hard = 121 to 180 mg/L CaCO3 Very hard = >180 mg/L CaCO3 Conversion Chart: C-20  Water Resources Assessment of Haiti Table C-2. Ground Water Resources (continued) To Convert Multiply By To Obtain liters per second 15.840 gallons per minute liters per second 60.000 liters per minute liters per second 95.000 gallons per hour gallons per minute 0.063 liters per second gallons per minute 3.780 liters per minute 3 Geographic coordinates for place names and primary features are in degrees and minutes of latitude and longitude. Geographic coordinates list latitude first for the Northern (N) or Southern (S) Hemisphere and longitude second for the Eastern (E) or Western (W) Hemisphere. For example: Plaine du Nord......................................................................(1940N07210W) Geographic coordinates for Plaine du Nord that are given as 1940N07210W equal 19°40' N, 72°10' W and can be written as a latitude of 19 degrees and 40 minutes north and a longitude of 72 degrees and 10 minutes west. Coordinates are approximate. Geographic coordinates are sufficiently accurate for location features on the country scale map. Geographic coordinates for rivers are generally at the river mouth. Note: ºC = degrees Celsius HCO3 = bicarbonate mg/L = milligrams per liter Ca = calcium K = potassium Na = sodium CaCO3 = calcium carbonate L/min = liters per minute NO3 = nitrate Cl = chloride L/s = liters per second pH = hydrogen-ion concentration Fe = iron m = meters SO4 = sulfate gal/min = gallons per minute Mg = magnesium TDS = total dissolved solids C-21