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Cistern prior instruction to receive

Last update date August 27, 2019

Summary about Yokohama-shi tray water tank facility prior instruction

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(purpose)

Because cistern to receive secures structure facilities suitable for hygienic maintenance of providing equipment, this Article 1 summary shall set necessary business formalities of in front of building certification application (in the case of water supply equipment construction without building certification, before water supply construction application) and designs of waterworks such as cistern to receive, sanitary instruction guideline about construction.

(definition of term)

In this Article 2 summary, significance of term to advocate to each next issue depends on place to set of each issue concerned.
(1) We say small scale tray water tank Channel to prescribe to bylaw Article 2 No. 6 about security of safe, hygienic drinking water in temporarily exclusive water supply to prescribe in tank facility Channel method Article 3 Paragraph 7 to receive and Yokohama-shi simple water supply water supply and small scale tray water tank Channel.
(2) We say person who is going to establish the master of building tray water tank facility.
(3) We say notice to chief architect to prescribe to application to chief architect to prescribe in building certification application Building Standard Act Article 6 Paragraph 1 (including case to apply mutatis mutandis in law Article 87 Paragraph 1), application to designated confirmation inspection engine to prescribe in 2 Paragraph 1 (including case to apply mutatis mutandis in law Article 87 Paragraph 1) of Building Standard Act Article 6 and law Article 18 Paragraph 2 (including case to apply mutatis mutandis in law Article 87 Paragraph 1).

(instruction guideline)

Article 3 tray water tanks have design of waterworks, sanitary instruction guideline (they say "instruction guideline" as follows.) about construction according to the separate table.

(desk work of health director)

Before water supply equipment construction application without building certification application to modify cistern facility which Article 4 health director receives from the master of building or building certification application when was consulted, demand the presentation of book to raise to each issue of next, and, by cistern facility prior consultation vote to receive based on instruction guideline (style 1), confirm the immediately contents, and instruction that is necessary using cistern facility prior instruction vote to receive (style 2) shall advise.
(1) Plan of building
(2) Tank to receive and structure of kookisuiso, ground plan which clarified setting place and elevation or cross section
(3) Water supply and drainage distribution diagram
(4) Plan of plan quantity of water
(5) Book that other health directors admit that they are necessary
When 2 health directors admit that it is particularly necessary in the foregoing paragraph, they shall speak opinion to chief architect or designated confirmation inspection engine.

(desk work of chief architect or designated confirmation inspection engine)

When we accept building certification application to modify tank facility to receive, Article 5 chief architect or designated confirmation inspection engine shall confirm that we receive prior instruction that the facility concerned prescribes in Article 4 Paragraph 1 for the master of building concerned.

(desk work of Water Works Bureau water supply manager)

When we accept application of water supply equipment construction (but construction to affect removal of water supply equipment and repair is excluded.) to modify tank facility to receive without building certification, the first water supply maintenance section manager in northern Article 6 Water Works Bureau water supply department, the northern part second water supply maintenance director, the western part first water supply maintenance director, the western part second water supply maintenance director, the southern part first water supply maintenance director, the southern part second water supply maintenance director, the central part first water supply maintenance director and the central part second water supply maintenance director (we say "each Water Works Bureau water supply maintenance section manager" as follows.) shall confirm that we receive prior instruction that the facility concerned prescribes in Article 4 Paragraph 1 for the master of building concerned.
When we cannot confirm foregoing paragraph, each 2 Water Works Bureau water supply maintenance section manager shall teach to the master of building of the facility concerned to receive instruction to prescribe in Article 4 Paragraph 1.

(others)

The Health and Social Welfare Bureau head, building chief of the bureau and Director water supply discuss necessary matter about the enforcement of this Article 7 point and set.

Supplementary provisions

(the date of enforcement)
This 1 summary takes effect on April 1, 2007.
(about the abolition of the business formalities point about Yokohama-shi tray water tank facility prior instruction)
We abolish the business formalities point (October 1, 1992 nichieikodai 546) about 2 Yokohama-shi tray water tank facility prior instruction.

Supplementary provisions

This summary takes effect on June 13, 2011.

Supplementary provisions

(the date of enforcement)
This 1 summary takes effect on May 1, 2019.
(provisional measure)
In fact, in the case of the enforcement of these 2 summaries, it still depends on conventional example about handling of case to be in the process of the approval processing.

The whole first waterworks

Materials of the plumbing facilities of 1 drinking water are waterproofing materials of quality of non-penetration, and it be said that we are safe in hygiene without fear that water is polluted.
Do not let me directly couple with the plumbing facilities of 2 drinking water and other plumbing facilities.
When openings include faucets of the plumbing facilities of 3 drinking water, take measures for prevention of countercurrent of effective water.

The second service pipes

Do not let me penetrate in facilities which might pollute 1 water.
Being able to perform maintenances such as 2 check, repair, exchange easily.
Display to distinguish from the plumbing of 3, etc.
Establish feed cock in ritsukan of service pipe flowing into 4 tray water tank.

Setting place of the third water tank

Establish in place without fear that water is polluted by 1 harm thing, filthy water.
2 maintenances are safe and easy, and establish in place that you can perform sanitarily.
Other aspects find space 0.6 meters or more 1 meter or more about upper aspect to completely check all aspects of water tank from 3 outside.
Do not install facilities apparatuses which might pollute water in the upper part of 4 water tanks.
When you establish in 5 indoor, establish facilities of enough ventilation, drainage and lighting.
Do not install water tank in building pit as 6 principles. But take the next measures when you cannot but install in building pit.
(1)Take measures that can go up and down safely.
(2)You establish inspection door of building pit at position that you can check safely and easily, and, as a general rule, do not establish water tank right under inspection door.
When you establish 7 water tanks in privy chamber, do not set up the plumbing that might pollute water in the room.
When you establish in 8 outdoors, as a general rule, establish fences.
When you establish the roofs of 9 penthouses to high place, you establish stairs not to have problem in going up and down to the setting place and establish handrails check work space where it is 0.6 meters or more around water tank and 1.1 meters or more.
In addition, install door with key in foot of stairs in security.

Structure facilities of the fourth water tank

Do with structure that harmful thing does not belong under in 1 dust or other hygiene.
The quality of the water preventing you from receiving adverse effects by 2 Nikko.
3 upper parts arrange suitable incline, and assume structure that rainwater does not stay.
Do not establish the plumbing facilities except the plumbing facilities of drinking water in 4 inside.
5 water tanks and pump well do not assume structure becoming built-in.
Assume the following structure because you do not cause 6 *taiei.
(1)Of use quantity of water plan 1st's greatest as for cistern to receive, the effective capacity of kookisuiso do 4/10-6/10, around 1/10 with standard each, and capacity do not be unreasonable for use quantity of water effectively.
(2)With inlet and outlet of service pipe, establish at symmetric position.
(3)As a general rule, do not double as water tank for firefighting.
Thing two tank-type as for the cases to need to avoid water outage at the time of 7 cleaning.
Establish manhole of structure to set next in 8 upper parts. But it is not this limit when ceiling of water tank serves as cover. (1)Establish at position that can perform internal maintenance check easily and safely.
(2)Being size that Japanese yen 60 centimeters in diameter or more can touch internally.
(3)Manhole side standing up in hygiene effectively from the cistern top surface.
(4)Thing which it is thing of waterproofing sealing model, and is harmful in dust or other hygiene being structure not to enter.
(5)Being structure that person except thing performing check cannot open and close easily.
Do 9-over flow pipe with the following structure that harmful thing does not belong under in dust or other hygiene.
(1)You assume indirect drainage with pipe edge and inlet of drainage pipe, and secure outlet port space that is enough for prevention of countercurrent.
(2)Pipe edge is worsening, and you withdraw enough, and vary.
(3)What effective insecticide net is attached to to prevent invasions such as small animals in pipe edge.
Do ten tracheas with the following structure that harmful thing does not enter in dust or other hygiene. But effective capacity is not this limit about water tank less than 2 square meters.
(1)Leaving open having enough effective cross sections in clean place.
(2)Pipe edge is worsening, and you withdraw enough, and vary. In addition, shade do not come off easily when it is to ventilation shade.
(3)What effective insecticide net is attached to to prevent invasions such as small animals in pipe edge.
Assume 11 scupper pipes the following structure not to have problem in drainage.
(1)We establish in the most bottom of water tank, and the most bottom of water tank establish incline, drainage, suction pit as needed.
(2)You assume indirect drainage with pipe edge and inlet of drainage pipe, and secure outlet port space that is enough for prevention of countercurrent.
Please consider structure facilities which can conjugate at the time of 12 disasters.

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Department in charge: Health Sanitation Division (Phone: 045-671-2456)

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Health and Social Welfare Bureau health security department Health Sanitation Division

Telephone: 045-671-2456

Telephone: 045-671-2456

Fax: 045-641-6074

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