About revision of water rate

Many of the water supply facilities, such as water purification plants, distribution reservoirs, and water pipes, were developed during the period of high economic growth, and are aging and need to be renewed. In addition, in order to minimize the damage caused by earthquake disasters, it is necessary to promote earthquake resistance.
On the other hand, water tariff revenues are on a downward trend, and if the population declines in the future, toll revenues will become even more severe.
Water Works Bureau will continue to pursue thorough management efforts, but we have revised water rates to deliver safe and high quality tap water to citizens in the future.

We raised water rates by 12% on average. In addition, we have shifted the fee structure to a caliber-based fee structure.

In order to ensure that citizens can use tap water at any time, Water Works Bureau maintains and maintains facilities according to the required amount of water supplied. In addition, when a large amount of water is used at a time, a meter with a large diameter is installed, and the meter diameter is set according to the amount of water used by the customer. In order to pay the expenses required for the maintenance and maintenance of the facility according to the amount of water available for each caliber, the basic fee of 790 yen / month is currently used as a basic fee according to the diameter of the water meter. System ". The pay-as-you-go rate is also set for each caliber.

(Confirmation of the caliber of the water meter)
The meter diameter of the customer is displayed on the surface of the "Notice of Water Supply / Sewerage Usage (Meter Reading Card)". Please check it out.

(a) Meter caliber (20mm in this sample)
(b) Amount of water used this time
(c) Water rates (revised on July 1, 2021)
(d) Sewerage fee (There is no revision)

The current fee includes the basic amount of water of 8m3 per month in the basic fee, and the fee is uniform within 8m3 regardless of the amount of water. After the fee revision, the basic water volume will be abolished in order to make the fee structure fair and easy to understand, paying the fee according to the amount of water used.

Water rates are calculated by measuring the amount of water used by meter reading every two months. Please see "How to confirm water rates" for water rates for two months.

The new fee structure will be applied from July 1, 2021. (There is no revision of sewerage usage fee.)

[For use before June 30, 2021]
As shown in the following table, the water charge according to the new tariff will be applied from the time of meter reading in "September for odd-numbered meter reading customers" and "October for even-numbered meter reading customers".

[If you start using it after July 1, 2021]
From the time of the first meter reading, the water charge according to the new price list will be applied.

[Price table by 2-month caliber]
"13mm caliber" (PDF: 385KB)
"Caliber 20mm" (PDF: 397KB)
"Caliber 25mm" (PDF: 397KB)
"Career 40mm" (posted every 10m3) (PDF: 392KB)
"Career 50mm" (posted every 25m3) (PDF: 392KB)
"Caliber 75mm" (posted every 25m3) (PDF: 393KB)
"Caliber 100mm" (posted every 50m3) (PDF: 390KB)
"Caliber 150mm" (posted every 100m3) (PDF: 390KB)
"Caliber 200mm" (posted every 200m3) (PDF: 389KB)
"Caliber 250mm" (posted every 200m3) (PDF: 389KB)
※If the amount of water used for two months is not on the table, please use the formula on the back of the price table.

[1-month and 2-month public bath charges calculation table]
"Public Bath Rate Calculation Table" (PDF: 129KB)
※Water rates and sewerage usage fees for "one month" or "two months" can be calculated.

[1 month water rate / sewerage system usage fee calculation table]
"One month water rate, sewerage system usage fee calculation table" (PDF: 257KB)
※Water charges and sewerage charges for "one month" can be calculated.

"Simple Water Charge Calculation Tool" (outside site)
With the "Water Charge Simple Calculation Tool", you can estimate a new water charge that will be revised from July 1, 2021.

Water rates measure the amount of water used by meter reading every two months. For this reason, the amount of water used for two months is reduced to 1/2, and the monthly fee is added to calculate the water charge for two months.
[Example: In the case of 20mm diameter and 30m3 of water used in 2 months]
Calculated assuming that the amount of water used for 2 months is reduced to 1/2, 15m3 is used in the first month and 15m3 in the second month.

(1st month + 2nd month) x consumption tax = water rate
(1,858 yen +1,858 yen) x 1.1 = 4,087 yen (rounded down to less than 1 yen)
※If the amount of water used for two months is 31m3, it is calculated separately in 15m3 and 16m3 (if the amount of water used is odd, the same will be calculated)
※Water charges are paid together with sewerage usage fees for two months in principle.