www.mlit.go.jp/mizukokudo/sewerage/mizukokudo_sewerage_tk_000396.html
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上下水道：下水道の計画 - 国土交通省
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http://www.mlit.go.jp/mizukokudo/sewerage/mizukokudo_sewerage_tk_000396.html
About this page
This page outlines sewerage planning information provided by Japan's Ministry of Land, Infrastructure, Transport and Tourism. It presents plans based on the Sewerage Law, including business plans and comprehensive basin-based sewerage development plans, as well as related legal plans such as urban planning, basin flood control plans, and environmental basic plans. The page also describes other planning frameworks including master plans and prefectural concepts for efficient wastewater treatment facilities. Various guidelines, pamphlets, and press releases related to sewerage development are available through provided links.
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