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This review of literature compiles several studies investigating the potential impacts of on-site sewerage systems on groundwater contamination, mainly by nitrates and pathogens. Some clear connections have been reported in several studies, but the degree and impact of such contamination are poorly understood. The extent of contamination is extremely variable and may be a function of soil conditions, type of treatment system, wastewater loading rates, aquifer characteristics and water level. Consequently, the design, construction and proper maintenance of these systems are crucial to a successful and sustainable operation. Evidence of aquifer contamination seem to be based more on the increasing number of on-site systems worldwide than on the problems actually observed that are directly associated with this type of technology. Key-words: On-site sewage systems, groundwater, contamination, pathogenic organisms, nitrate.

Potenciais Impactos de Sistemas Estáticos de Esgotamento Sanitário na Água Subterrânea  Revisão de literatura

Potenciais Impactos de Sistemas Estáticos de Esgotamento Sanitário na Água Subterrânea Revisão de literatura