Last updated: April 1, 2021
In order to prevent ground subsidence, when installing groundwater pumping facilities (wells), the Tokyo Metropolitan Environmental Ordinance (abbreviation: Tokyo Environmental Preservation Ordinance) requires structural standards and upper limits on the amount of water pumped. is regulated.
In addition, the amount of pumped water, including groundwater pumping facilities that have already been installed, must be reported once a year.
All pumping facilities
Note: For single-family homes used only for household purposes, only pumped water facilities with a pump output of over 300 watts are eligible.
| Cross-sectional area of discharge port | Strainer position | Pumping machine output | Upper limit of pumping capacity | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 square centimeters or less | No limit | 2.2 kilowatts or less | Average of 10 cubic meters per day up to 20 cubic meters per day |
||||||||
| more than 6 square centimeters 21 square centimeters or less |
Deeper than 400 meters | No limit | |||||||||
| Over 21 square centimeters | Cannot be installed | ||||||||||
Please submit the installation notification at least 30 days before the start of construction.
Note: When coming to report, please contact the Living Environment Division Environmental Conservation Section in advance.
Note: In principle, a copy of the notification form will be returned at a later date. If it is difficult to come to the office to return the item, it will be returned by mail, so if you wish to have it sent by mail, please attach a self-addressed envelope with the necessary stamps when submitting the notification.
Note: Regarding various notification documents, if there is an error in the written contents due to the abolishment of seals, please correct them using double lines, etc.
One original and one copy (including attached documents)
When changing or abolishing a pumping facility, please notify if there is a change in the owner's name, address, etc.
Pumping facility installers should keep track of the amount of groundwater pumped in the previous year, etc., and submit a report once a year.
Note for all pumping facilities: For pumping facilities installed after July 2016 that are used only for domestic purposes in single-family homes, only pumping facilities with a pump output of over 300 watts are eligible.
Between January 1st and December 31st of the previous year
Monthly groundwater pumping volume, breakdown by use, etc.
Groundwater pumping amount report (Form No. 18)
Every year until the end of January
2nd part
Inagi City Urban Environment Development Department Living Environment Division Phone: 042-378-2111
