Timeline: 50 years of JS

1972
-Sewage Works Centre established

-First construction agreement with Kawagoe city, Saitama

1973
-Sewerage Training Program starts

1974
-Technology Evaluation Committee established

1975
-R&D Center established

-First entrusted WWTP starts running in Motobu town, Okinawa

-Japan Sewage Works Agency starts

1976
-First wastewater engineering qualification test held

1977
-First commendation of Excellent Construction Works

1982
-Award-winning Japan’s first modified activated sludge circulation process starts running in Lake Biwa river-basin sewerage

1983
-Total number of trainees completed JS Training Program runs to 10,000

1985
-"Oxidation Ditch Process" and “Sewage Sludge Composting Technology“ established

-Award-winning drop caisson method starts running in Atami City, Shizuoka

1987
-Technology examination, certification system for private sector starts (until 1997)

-First qualification test held for wastewater management engineering

1988
-Japan’s first POD (Prefabricated Oxidation Ditch) process starts running in Nakanojo town, Gunma

1989
-ACE Centers start in north-east Osaka, east, west Hyogo

1990
-ACE Center starts in south Osaka

1991
-World's first small-footprint Nitrogen removal bioreactor "PEGASUS" starts running in ACE center of north-east Osaka

1992
-Japan’s first "Clean Capsule" Tunnel starts running in Kashima town, Shimane

1995
-Recovery support for Kobe Earthquake

1997
-JS New Tech Implementation Program starts

1999
-Project Management System starts full-scale operation

-Design Build (DB) method first ordered

2000
-Award-winning Naniwa discharge channel completed by shield method, pumping station with sand sedimentation

2001
-Japan’s first sewage sludge carbonization starts running in Lake Biwa river-basin sewerage

-R&TD Experiment Center starts in Mohka City, Tochigi

-“Step-feed multistage nitrification/denitrification process” established

2003
-JS restarts as special public organization

-“MBR” and “Sewage Sludge Carbonization System” established

-Mid-term Management Plan developed

2004
-Seven regional offices start up

-Recovery support for Chuetsu Earthquake

2005
-“Ozone/Thermophile Sludge Reduction“ established

-Energy-saving, environmentally friendly wind-power generation system awarded

-Japan’s first MBR starts running in Fukusaki Town, Hyogo

2006
-New Mid-term Management Plan developed

-“Utilization of Activated Sludge Model” enabling computer simulation established

2007
-Recovery support for Chuetsu Offshore Earthquake

-Officially starts supporting municipalities to adopt Asset Management

2008
-Total number of trainees completed JS Training Program runs to 50,000

-"Corrosion Prevention Technology by Sulfuric-Acid-Resistant Mortar“, "Sewage Biomass Energy System” established

-“Adoption of Asset Management for Wastewater Facilities” awarded

2009
-“Beneficial Uses of Sewage Sludge as Resource” awarded

-Third Mid-term Management Plan developed

-“Ozonation Technology” and “Nitrogen Removal Technology Using ANAMMOX” established

2010
-“Retrofit of Aging Facilities to Reduce Greenhouse Gas Emission” awarded

2011
-Recovery support for Tohoku Earthquake:Disaster Control Headquarters, Local Support Headquarters, Earthquake Recovery Support Office established

-Radioactivity measurement for dewatered sludge starts

-Technology Strategy Department and International Affairs Office established

-New program to promote new technology implementation starts

-Sambo WWTP with large-scale MBR starts running in Sakai City

2012
-MOE contructs radioacive investigations to JS

-Recovery Support Office established in Tohoku Regional Office

-JS' first Disaster Support Agreement with Matsuyama city, Ehime prefecture

-Forth Mid-term Management Plan developed

2014
-First "Technology Verification for International Use" conducted: "Technology Verification" given

2015
-Japan Sewage Works Agency Law partially amended: New support for municipal sewerage now available

2016
-Recovery support for Kumamoto Earthquake

2018
-Japan Sewage Works Agency Law partially amended: International technical support starts

-Recovery support for 2018 Hokkaido Eastern Iburi Earthquake

-Fifth Mid-term Management Plan developed

2019
-Total number of trainees completed JS Training Program runs to 80,000

-Recovery support for Typhoon Hagibis

2020
-Solution Department established

-Recovery support for 2020 Kyushu floods

2021
-Japan Sewage Works Agency Law partially amended for flood management

2022
-DX Strategy Department and Technology Development Office established

-New dorm at JS Training Center opens

-Sixth Medium-Term Management Plan developed

-Partnership agreement with Japan Institute of Wastewater Engineering and Technology: comprehensive outsourcing of wastewater facilities for local governments support

-MOU with the Wastewater Management Authority (WMA) of Thailand agreed