We release water quality test annual report of after 2004 and 1970, 1955, 1990, 2007, 2000. In addition, summary is released about after 1998, too. In addition, printing plate after 1975 can be browsed by Chuo-toshokan. Please inquire for (from 1969 to 1949) before that.
Adobe Acrobat Reader DC (old Adobe Reader) is necessary to open file of Portable Document Format.
Person who does not have can download free of charge from Adobe company. To downloading of Adobe Acrobat Reader DC
Inquiry to this page
The Environmental Planning Bureau sewer Facilities Department sewer quality of the water section