Ministry of Land, Infrastructure and Transport
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City and Regional Development Bureau
  Surprising Sewerage  
Dissemination of sanitary wastewater treatment

  In terms of infrastructure, great disparities are shown among regions particularly in sewerage
  There is a need for rapid dissemination of sewage treatment as the use/non-use of sewerage is the question of whether sewerage is present or not.
  Infrastructure target: rate of prevalence of sewage treatment among the population: 68% (2004) > 72% (2007)
Rate of prevalence of sanitary wastewater treatment among the population: 79% (2004) > 86% (2007)


Sewer prevalence rate according to city size


Sewer prevalence rate according to prefecture and city government


Ranking by prevalence rate Sewerage is social capital with big regional disparities


Conceptual diagram of cost comparisons
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