Sewage and Septic Tank Overview

Sewage

Household Waste Collection

For households with pit toilets, we conduct emptying operations once a month.
In areas where sewer services have been in use for three years, charges apply starting from the first emptying, while in other areas, charges apply starting from the second emptying.
Note: As of April 1, 2020, the sewage treatment fee has been changed to 1,530 yen per emptying.

Business Waste Collection

For facilities with pit toilets (including portable toilets), we conduct emptying services by reservation. The fee is 1,020 yen per barrel (36 liters) and is based on usage.
The work is carried out on weekday afternoons. Please apply by phone to the Living Environment Division. If it is a construction site, please prepare a map of the site.

Notification of Sewage Treatment Plant

If you are installing a septic tank in areas where public sewerage is not available, prior notification is required.

New construction and expansion/renovation of buildings (10 square meters or more)

(Notification destination) Tama Building Guidance Office, Building Guidance Division 1, Phone 042-525-6804

Renovation of Pit Toilets

(Notification Destination) Tokyo Tama Environment Office Waste Management Division Sewage Treatment Section Phone 042-528-2692

Maintenance Management of Sewage Treatment Tanks

The management of septic tanks is mandated by the "Septic Tank Law" to require the following from the administrator. Please cooperate in the maintenance and management of septic tanks to prevent pollution of rivers.

Cleaning (Removal of sludge, etc.)

Cleaning is required at least once a year. Please apply to a "septic tank cleaning contractor" authorized by the city for cleaning. Those registered with the city will receive a subsidy for part of the cleaning costs (once a year).
Note: Due to the revision of the Consumption Tax Act, a tax rate of 10% will be applied from October 1, 2019.

Authorized Sewage Treatment Plant Cleaning Contractors

Kato Shoji Co., Ltd. Phone 042-378-3051
Chofu Cleaning Co., Ltd. Phone 042-339-7753
Pex Co., Ltd. Phone 042-378-2121

Maintenance Inspection (Regular Inspection, Adjustment and Repair)

Please receive maintenance inspections between 2 to 12 times a year, depending on the processing method and the number of people being processed.
Please request maintenance inspections from a "Governor-registered business operator."
(Contact) Tama Environmental Office Waste Management Section, Septic Tank Division, Phone: 042-528-2692

Legal Inspection (Periodic Inspection)

Please have a regular inspection six months after starting to use it and once a year thereafter. Please request the inspection from the Tokyo Metropolitan Environmental Public Corporation, Tama Branch. Phone: 042-595-7982

Please be cautious of suspicious vendors

Information has been received about suspicious contractors claiming to have come for inspections at the request of the city. The city has not requested any inspections, so please contact the Environment Department if you have any questions.

Subsidy for the Installation of Merged Treatment Sewage Systems

To prevent the pollution of rivers and waterways caused by domestic wastewater, we provide subsidies for the installation of combined treatment septic tanks that treat both sewage and general wastewater. If you wish to receive the subsidy, please apply for the grant before the start of construction.

Cleaning of Household Wastewater Inlet

We install suction holes for household wastewater and provide subsidies for part of the cleaning costs up to three times a year for registered residents. Please apply for cleaning through the contractor commissioned by the city.
PEX Corporation Phone 042-378-2121