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About management of bath facilities
Last updated on February 28, 2025.
- About revision of water quality standard of bathtub water
- Information on measures to prevent legionellosis
- Preparation and operation of self-management guidebooks
- About bathing wearing bathing clothes
About revision of water quality standard of bathtub water
public bath and Japanese inn business facilities are required to conduct water quality tests at least once a year and submit a water quality test report to Health Sanitation Division Health and Welfare Center.
Due to a partial revision of the Public Bath Law Enforcement Detailed Regulations and the Ryokan Business Law Enforcement Detailed Regulations, from April 1, 2025, "E. coliform" will be "E. coli" among the inspection items of bathtub water, so water quality will be tested according to new standards Please carry out.
In addition, when changing water for each bather without circulating the bathtub water, it is not necessary to inspect the bathtub water.
Water quality standards (from April 1, 2025)
Inspection items | Criteria | Inspection method |
---|---|---|
Chromaticity | 5 degrees or less | Coloring method or transparent light measurement method |
Turbidity | 2 times or less | Contamination, Transmission Spectrometer, Integration Optical Electromagnetic, Scattering Light Measurement, or Transmission Scattering |
pH value | 5.8 or more 8.6 or less | Glass electrode method |
Amount of total organic carbon (If it is inappropriate to measure the amount of total organic carbon due to reasons such as disinfection using chlorinated isocyanolic acid, potassium permanganate consumption) | 3mg/L or less (In terms of potassium permanganate consumption, 10 mg/L or less) | Total Organic Carbon Measurement Method (In terms of potassium permanganate consumption, titration method) |
Escherichia coli | Not detected | Specific enzyme substrate culture method |
Legionella spp. | Not detected (less than 10cfu / 100mL) | Filtration concentration method or cooling centrifugal concentration method |
Inspection items | Criteria | Inspection method |
---|---|---|
Turbidity | 5 degrees or less | Contamination, Transmission Spectrometer, Integration Optical Electromagnetic, Scattering Light Measurement, or Transmission Scattering |
Amount of total organic carbon (If it is inappropriate to measure the amount of total organic carbon due to reasons such as disinfection using chlorinated isocyanolic acid, potassium permanganate consumption) | 8mg/L or less (In terms of potassium permanganate consumption, 25 mg/L or less) | Total Organic Carbon Measurement Method (In terms of potassium permanganate consumption, titration method) |
Escherichia coli | 1 piece/mL or less | Methods prescribed in Article 6 of the Ministerial Ordinance (Ministry of Health and Welfare, Ministry of Construction Ordinance No. 1 of 1962) concerning the method of certifying the quality of sewage |
Legionella spp. | Not detected (less than 10cfu / 100mL) | Filtration concentration method or cooling centrifugal concentration method |
Report of water quality inspection results
Once the water quality inspection is conducted, please attach a copy of the inspection report to the water quality inspection report and submit it to Health and Welfare Center Health Sanitation Division in the ward where the facility is located.
- public bath Water Test Results Report (Word: 18KB)
- Ryokan business facility water quality inspection result report (word: 18KB)
You can also report online using the "Yokohama City Electronic Application and Notification System".
Information on measures to prevent legionellosis
Legionellosis can be prevented by proper hygiene management of equipment.
public bath and the inn business facilities are stipulated in the ordinances, detailed regulations and outlines for basic hygiene management to prevent the growth of Legionella spp.
- Public Bath Law Enforcement Ordinance (outside site)
- Public Bath Law Enforcement Detailed Regulations (Outside Site)
- Ordinance for Enforcement of the Ryokan Business Law (outside site)
- Detailed Regulations for Ryokan Business Law (outside site)
- Yokohama-shi Legionellosis prevention measures instruction summary (PDF: 416KB)
- "Stop! Legionella-Points for Preventing Legionellosis-" (brochure for businesses) (PDF: 1,840KB)
If a user of the facility is found to have Legionellosis patients (including suspicions), or if the results of water quality tests are inappropriate, such as the detection of Legionella spp. from the equipment to be managed, contact Health and Welfare Center Health Sanitation Division in the district where the facility is located.
Preparation and operation of self-management guidebooks
Laws and regulations
- Under the "Public Bath Law Enforcement Ordinance" and the "Ryokan Business Law Enforcement Detailed Regulations", business operators are required to prepare a self-management guide.
- Similarly, in the "Yokohama City Legionellosis Prevention Measures Guidance Guidelines", it stipulates the creation of guidebooks, equipment ledgers, annual management plans, etc.
Purpose
The voluntary management guide is a document (management manual) that specifically defines daily hygiene management and plans, methods, procedures, etc. for maintenance and management of equipment and equipment, etc., with the aim of preventing health hazards such as legionellosis. )is. As shown in the table below, create a self-management guide, carry out maintenance based on the prescribed procedure, verify the validity of the procedure by water quality inspection, etc., and review the plan as necessary. In addition to complying with the standards stipulated in the regulations, etc., it is possible to maintain and manage according to the situation of the facility.
PDCA | Details of implementation |
---|---|
Plan (P) | Preparation of maintenance plan (self-management guide) |
Execution (D) | Maintenance and preparation of implementation records based on the plan (procedures) |
Evaluation (C) | Verification of procedures by water quality tests such as bathtub water |
Improvement (A) | Revision and improvement of plans (procedures) |
- |
(P)(D)Repeat (C)(A). |
Basic Concept of Hygiene Management
When microorganisms proliferate in the equipment and biological membranes are formed and established, Legionella spp. In order to improve this situation, we will appropriately clean and disinfect equipment based on our self-management guide. It is also important to take measures to control the scattering of aerosols (microwater droplets) containing Legionella spp. to prevent human transmission.
How to create a self-management guide
The self-management guide is a document that summarizes matters related to the maintenance and management of facilities, but the style is not defined, and if there is a system drawing, equipment table, manual for workers, etc. already created at the facility, You can organize and utilize it. Please confirm that the following (1) to (4) are organized in the manuals created at the facility.
(1)About hygiene manager and its role
(2)About hygiene management plan and management procedure (see table below for details)
(3)Correction and improvement of plans and procedures based on water quality inspections and inspection records
(4)Response in case of emergency or accident
When creating a self-management guide from now on, please refer to examples of self-management guide (public bath (word: 110KB) and Hotel Ryokan (word: 110KB)).
Documents | Example of description | Example |
---|---|---|
①System diagram | System diagram of the entire equipment for each bathtub system (summary) | ー |
②List of Covered Equipment | Name that can be identified (installation location), format, performance, capacity, presence or absence of instruction manual, etc. |
|
③List of management items | Management items necessary to control the occurrence of Legionella spp. for each target facility | |
④Procedure | Specific management procedures according to the list of management items for each facility
| |
⑤Annual Plan and Inspection Table | Management and inspection plans and implementation record tables implemented on a regular basis (monthly basis) | Attachment 1-(3) Annual Plan and Inspection Table (Excel: 17KB) |
⑥Daily Inspection Table | Implementation record table of management and inspection performed on a daily basis (daily, weekly) basis | Attachment 1-(4) Daily Inspection and Record Table (Excel: 29KB) |
Operation of Voluntary Management Guides
Perform maintenance based on the self-management guide created, and record the results on checklists.
Based on the results of the recorded inspection table and water quality inspection, consider the validity of the created plan and procedure, revise the self-management manual as necessary, and review the maintenance procedure. In addition, when regulations such as the Public Bath Law Enforcement Ordinance are revised or when facilities are updated, it is necessary to review the self-management manual.
Inquiry counter
If you have any questions about hygiene management at the facility, please contact Health and Welfare Center Health Sanitation Division in the ward where the facility is located.
About bathing wearing bathing clothes
Some people wish to take a bath wearing a special bathing suit so that they do not stand out after surgery such as breast cancer. Please take care so that those who wear bathing clothes can take a bath without hesitation.
Poster (please understand and consider bathing wearing bathing clothes) (PDF: 736KB)
What is Bathing Cloth?
This is a special bathing underwear developed and manufactured to cover the scars so that those who have left scars due to breast cancer or skin transplant surgery can enjoy bathing without worrying about the surroundings. There is no problem with hygiene management if you wear a bathing suit just before bathing and wash off the attached soap before entering the bathtub.
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Inquiries to this page
Health Sanitation Division, Medical Care Bureau Health and Safety Department
Phone: 045-671-2456
Phone: 045-671-2456
Fax: 045-641-6074
E-Mail address [email protected]
Page ID: 575-727-438