summary (1) nature of service to be commissioned: fy 2022 maintenance service and comprehensive operation management at the chikumagawa regional sewerage system downstream wastewater treatment plant (2) contract duration: april 1, 2022 to march 31, 2025 (3) service locations: chikumagawa regional sewerage system downstream wastewater treatment plant and other locations address: 2455 sarutaka, akanuma, nagano city, nagano prefecture 381-0001 japan (4) contact information: nagano prefecture chikumagawa regional sewerage office, general affairs division 1060-1 kawai, mashimamachi, nagano city, nagano prefecture 381-2203 japan tel: +81-26-283-4170 (5) bid opening: date and time: wednesday, february 9, 2022, 2:00 p.m. (jst) location: chikumagawa regional sewerage system downstream wastewater treatment plant, clean-pia hall (6) mail-in submission (registered mail only): deadline: must be received by friday, december 3, 2021, 5:00 p.m. (jst) mailing address: nagano prefecture chikumagawa regional sewerage office general affairs division 1060-1 kawai, mashimamachi, nagano city, nagano prefecture 381-2203 japan