From a US State Department report (www.state.gov/g/drl/hrrpt/2006/78889.htm):
The IOM (International Organization for Immigration) estimated that approximately 650,000 Haitian immigrants-- or 7.5 percent of the country's population--lived in shantytowns or sugarcane work camps known as bateyes, harsh environments with limited or no electricity, usually no running water, and no adequate schooling. Many of these settlements were associated with sugar mills that had been abandoned. Although some Haitians were brought to the country specifically to work in sugarcane fields, many had no documentation. Human rights NGOs, the Catholic Church, and activists described Haitian living conditions in bateyes as modern-day slavery. In many bateyes, as in many poor areas in other parts of the country, medical assistance either was rudimentary or not readily available. Housing in the bateyes was poor; many individuals slept in barracks on iron beds without mattresses or on dirt floors. Many families of five or more shared living quarters that measured as little as nine by 10 feet. Bathroom facilities, where available, were generally unhygienic, and cooking facilities were usually improvised. The availability of fresh food, including fruits and vegetables, was severely limited. Clean water was rarely available. Many batey residents, lacking documentation, felt they had little choice but to remain in their communities, where they felt relatively safe from the risks of deportation and harassment that existed elsewhere in the country.
More information is available from the National Coalition for Haitian Rights, http://www.nchr.org/rmp/archive/executiv.htm. And from a US State Department report, www.state.gov/g/drl/hrrpt/2006/78889.htm: