2.6. Water intake structures for non-centralized water supply should not be installed in areas flooded by flood waters, in wetlands, as well as places subject to landslides and other types of deformation, as well as closer than 30 meters from highways with heavy traffic.

III. Requirements for the design and equipment of water intake structures for non-centralized water supply.

3.1. Correct device and the equipment of water intake structures allows us to solve not only the issues of reliability and durability of such structures, ease of use, but also the protection of water from pollution and clogging.

3.3. Requirements for the device of mine wells

Sanitary rules establish hygienic requirements for the quality of water from non-centralized water supply sources, for the choice of location, equipment and maintenance of water intake structures and the surrounding area.

State sanitary and epidemiological regulation
Russian Federation

State sanitary and epidemiological
rules and regulations

2.1.4.DRINKING WATER AND WATER SUPPLY
PLACES

Hygienic requirements
to the quality of non-centralized water
water supply Sanitary
source protection

Sanitary and epidemiological rules and regulations

SanPiN 2.1.4.1175-02

Ministry of Health of Russia

Moscow· 2003

1. Developed by: Dr. med. A. A. Korolev, MD n. M. V. Bogdanov, Ph.D. A. A. Semenova (MMA named after I. M. Sechenov), Ph.D. A. E. Nedachin, Ph.D. n. T. Z. Artemova (Research Institute of ECh and State OS named after A. N. Sysin), Doctor of Medicine n. V. L. Suslikov (Chuvash State University), Doctor of Medical Sciences A. V. Ivanov (Kazan Medical University), Ph.D. A. A. Orlov (Saratov Research Institute of Rural Hygiene of the Ministry of Health of the Russian Federation), A. I. Rogovets (Central Scientific and Technical Sciences under the Ministry of Health of the Russian Federation), Ph.D. M. M. Gasilina, with the participation of A. P. Veselov (Department of the State Sanitary and Epidemiological System of the Ministry of Health of the Russian Federation).

3. Approved by the Chief State Sanitary Doctor of the Russian Federation - First Deputy Minister of Health of the Russian Federation G. G. Onishchenko on November 17, 2002.

4. From the moment of introduction of these sanitary rules “Requirements for water quality of non-centralized water supply. Sanitary protection of sources SP 2.1.4.554-96” lose force.

5. Registered with the Ministry of Justice of the Russian Federation on December 20, 2002. Registration No. 4059.

The federal law
“Sanitary and epidemiological well-being of the population”
dated March 30, 1999 No. 52-FZ

“State sanitary and epidemiological rules and standards (hereinafter referred to as sanitary rules) - regulatory legal acts establishing sanitary and epidemiological requirements (including criteria for the safety and (or) harmlessness of environmental factors for humans, hygienic and other standards), non-compliance with which creates threat to human life or health, as well as the threat of the emergence and spread of diseases” (Article 1).

“On the territory of the Russian Federation, there are federal sanitary rules approved and put into effect by the federal executive body authorized to carry out state sanitary and epidemiological supervision in the manner established by the Government of the Russian Federation.

Compliance with sanitary rules is mandatory for citizens, individual entrepreneurs and legal entities” (Article 39).

“For violation of sanitary legislation, disciplinary, administrative and criminal liability is established” (Article 55).

CHIEF STATE SANITARY DOCTOR
RUSSIAN FEDERATION

RESOLUTION

25.11.02 Moscow#40

Implementation of sanitary

rules "Hygienic requirements for

non-centralized water quality

water supply. Sanitary protection

sources. SanPiN 2.1.4.1175-02"

Based on the Federal Law “Sanitary and Epidemiological Welfare of the Population” dated March 30, 1999 No. 52-FZ and the “Regulations on State Sanitary and Epidemiological Standards” approved by Decree of the Government of the Russian Federation dated July 24, 2000 No. 554.

I DECIDE:

Enact the sanitary rules “Hygienic requirements for the quality of water from non-centralized water supply. Sanitary protection of sources. SanPiN 2.1.4.1175-02”, approved by the Chief State Sanitary Doctor of the Russian Federation on November 17, 2002, since March 1, 2003.

G.G. Onishchenko

Ministry of Health of the Russian Federation

CHIEF STATE SANITARY DOCTOR
RUSSIAN FEDERATION

RESOLUTION

25.11.02 Moscow#41

Repeal of sanitary rules

"Requirements for water quality

non-centralized water supply.

Sanitary protection of sources.

SanPiN2.1.4.554-96 »

In connection with the approval on November 17, 2002 by the Chief State Sanitary Doctor of the Russian Federation and the entry into force on March 1, 2003 of the sanitary rules “Hygienic requirements for the quality of water from non-centralized water supply. Sanitary protection of sources. SanPiN 2.1.4.1175-02.”

I DECIDE:

From the moment of entry into force of the specified sanitary rules, the sanitary rules “Requirements for water quality of non-centralized water supply” are considered to have lost force on the territory of the Russian Federation. Sanitary protection of sources. SanPiN2.1.4.554-96”, approved by the former State Committee for Sanitary and Epidemiological Supervision of Russia.

G. G. Onishchenko

I APPROVED

Chief State Sanitary

doctor of the Russian Federation - First

Deputy Minister of Health

Russian Federation

G. G. Onishchenko

2.1.4. DRINKING WATER AND WATER SUPPLY
PLACES

Hygienic requirements
to the quality of water from non-centralized water supply.
Sanitary protection of sources

Sanitary and epidemiological rules and regulations
SanPiN 2.1.4.1175-02

1. General Provisions

1.1. These sanitary and epidemiological rules and regulations (hereinafter - sanitary rules) prepared on the basis of the Federal Law “On the Sanitary and Epidemiological Welfare of the Population” dated March 30, 1999 No. 52-FZ (Collection of Legislation of the Russian Federation, 1999 No. 14, Art. 1650), Decree of the Government of the Russian Federation dated July 24, 2001 No. 554 “On approval of the Regulations on the State Sanitary and Epidemiological Service of the Russian Federation and the Regulations on State Sanitary and Epidemiological Standardization" (Collected Legislation of the Russian Federation, 2000 No. 31, Art. 3295) and are aimed at preventing and eliminating water pollution from sources of non-centralized water supply for public and individual use.

1.2. Sanitary rules establish hygienic requirements for the quality of water from non-centralized water supply sources, for the choice of location, equipment and maintenance of water intake structures and the adjacent territory.

1.3. Non-centralized water supply is the use of water from underground sources for drinking and household needs of the population, taken using various structures and devices open for public use or for individual use, without supplying it to the point of consumption.

1.4. The sources of non-centralized water supply are groundwater, the capture of which is carried out through the construction and special equipment of water intake structures (shaft and tube wells, spring catchments) for general and individual use.

1.5. Sanitary rules are mandatory for legal entities, individual entrepreneurs and citizens.

1.6. Monitoring compliance with the requirements of sanitary rules is carried out by centers of state sanitary and epidemiological supervision in accordance with the Regulations on the State Sanitary and Epidemiological Service of the Russian Federation.

2. Requirements for choosing the location of water intake structures for non-centralized water supply

2.1. The choice of location for water intake structures of non-centralized water supply is of priority importance in maintaining the consistency of the quality of drinking water, preventing its bacterial or chemical contamination, preventing the population from becoming ill with waterborne infections, as well as preventing possible intoxications.

2.2. The choice of location for water intake structures is carried out by their owner with the involvement of appropriate specialists and is carried out on the basis of geological and hydrogeological data, as well as the results of a sanitary survey of the nearby territory.

2.3. Geological and hydrological data must be provided to the extent necessary to resolve the following issues:pros: depth of groundwater, direction of groundwater flow in terms of a populated area, approximate capacity of the aquifer, possibility of interaction with existing or projected water intakes in neighboring areas, as well as with surface water (pond, swamp, stream, reservoir, river).

2.4. The sanitary inspection data must contain information about the sanitary condition of the location of the designed water intake structure and the surrounding area, indicating existing or possible sources of microbial or chemical water contamination.

2.5. The location of the water intake facilities should be chosen on an uncontaminated site, remote at least 50 meters upstream of the groundwater from existing or possible sources of pollution: latrines and pits, warehouses for fertilizers and pesticides, local industries, sewerage facilities, etc.

2.6. Water intake structures of non-centralized water supply should not be installed in areas flooded with flood waters, in wetlands, as well as in places subject to landslides and other types of deformation, and also closer than 30 meters from highways with heavy traffic.

2.7. The number of the population using a non-centralized water supply source is determined in each specific case based on the flow rate of the source and the accepted water consumption standards. Water intake structures must ensure the passage of the required volumes of water through them.

3. Requirements for the arrangement and equipment of water intake facilities for non-centralized water supply

3.1. The correct arrangement and equipment of water intake facilities allows solving not only the issues of reliability and durability of such facilities, ease of use, but also the protection of water from pollution and clogging.

3.2. The most common water intake facilities in populated areas are shaft and tubular wells of various designs and depths, as well as captive springs (keys).

3.3. Requirements for the construction of mine wells

3.3.1. Mine wells are designed to receive groundwater from the first from the surface of a non-pressure aquifer. Such wells are a round or square shaft and consist of a head, a shaft and a water intake.

If it is impossible to observe this distance, the location of the water intake facilities in each specific case is coordinated with the center of state sanitary and epidemiological surveillance.

3.3.2. The head (aerial part of the well) serves to protect the mine from clogging and pollution, as well as for observation, water lifting, water intake and must be at least 0.7 - 0.8 m above the ground.

3.3.3. The head of the well must have a cover or a reinforced concrete ceiling with a hatch, also closed with a cover. The top of the head is covered with a canopy or placed in a booth.

State system of sanitary and epidemiological regulation of the Russian Federation

Federal sanitary rules, norms and hygienic standards

2.1.4. DRINKING WATER AND WATER SUPPLY

PLACES

Water quality requirements

Sanitary protection of sources

Sanitary rules and regulations

SanPiN 2.1.4.544-96

1. Developed by: Dr. med. A. A. Korolev, Ph.D. A. A. Semenova (MMA named after I. M. Sechenov), Ph.D. M. M. Gasilina (RMAPO MHMP RF), A. I. Rogovets (GKSEN RF), Doctor of Medical Sciences. V. L. Suslikov (Chuvash State University), Doctor of Medical Sciences M. M. Gimadeev, Ph.D. A. V. Ivanov (Kazan State Medical University), Ph.D. A. A. Orlov (Saratov Research Institute of Rural Hygiene, State Committee for Sanitary and Epidemiological Sanitation of the Russian Federation).

2. Approved and put into effect by the Decree of the State Committee for Sanitary and Epidemiological Supervision of Russia dated August 7, 1996, No. 18.

3. Introduced to replace the “Sanitary Rules for the Construction and Maintenance of Wells and Captures of Springs Used for Decentralized Household and Drinking Water Supply” (No. 1226-75).

Law of the RSFSR “On the sanitary and epidemiological welfare of the population”

“Sanitary rules, norms and hygienic standards (hereinafter referred to as sanitary rules) are regulations that establish criteria for the safety and (or) harmlessness of environmental factors for humans and requirements for ensuring favorable living conditions.

Sanitary rules must be followed by everyone government agencies and public associations, enterprises and other economic entities, organizations and institutions, regardless of their subordination and forms of ownership, officials and citizens” (Article 3).

“A sanitary offense is recognized as an unlawful, guilty (intentional or careless) act (action or inaction) that encroaches on the rights of citizens and the interests of society, associated with non-compliance with the sanitary legislation of the RSFSR, including the current sanitary rules...

Officials and citizens of the RSFSR who commit a sanitary offense may be brought to disciplinary, administrative and criminal liability” (Article 27).

APPROVED

Resolution of the State Committee for Sanitary and Epidemiological Supervision

Introduction date ¾ from the date of approval

1. General Provisions

3. Requirements for choosing the location of water intake structures for non-centralized water supply

4. Requirements for the design and equipment of water intake structures for non-centralized water supply

5. Requirements for water quality of non-centralized water supply

6. Requirements for the maintenance and operation of water intake structures for non-centralized water supply

7. Control over the quality of water from non-centralized water supply

Appendix 1 (mandatory). Methodology for disinfection of mine wells and disinfection of water in them

2.1.4. DRINKING WATER AND WATER SUPPLY TO PLACES

Water quality requirements

decentralized water supply.

Sanitary protection of sources

Sanitary rules and regulations

SanPiN 2.1.4.544-96

Requirements for Water quality of Uncentralized Sources of Water Supply. Sanitary Protection of Water Sources

1. General Provisions

1.1. These "Sanitary Rules and Norms" were prepared on the basis of the Law of the RSFSR "On the Sanitary and Epidemiological Welfare of the Population" of April 19, 1991 (Article 16) in accordance with the "Regulations on State Sanitary and Epidemiological Rationing", approved by the Decree of the Government of the Russian Federation of 5 June 1994 No. 625 and are aimed at preventing and eliminating water pollution from sources of non-centralized water supply for public and individual use.

1.2. Sanitary rules and norms apply to underground sources of non-centralized water supply used or planned for use, which serve to meet the drinking and household needs of the population.

1.3. Non-centralized water supply refers to the use by residents of populated areas of underground water sources to meet drinking and household needs with the help of water intake devices without a distribution network.

1.4. Sources of non-centralized water supply are groundwater, the capture of which is carried out by arranging and special equipment of water intake structures (shaft and tubular wells, capturing of springs) for public and individual use.

1.5. The "Sanitary Rules and Norms" establish hygienic requirements for the quality of water from non-centralized water supply sources, for the choice of location, equipment and maintenance of water intake facilities and the territory adjacent to them.

1.6. Responsibility for compliance with the Sanitary Rules and Norms rests with local self-government bodies, collective or individual owners, whose activities may lead to changes in the properties and quality of water from non-centralized water supply sources.

1.7. Control over compliance with the requirements of the "Sanitary Rules and Norms" is carried out by the centers of state sanitary and epidemiological surveillance in accordance with the "Regulations on the State Sanitary and Epidemiological Service of the Russian Federation", approved by Decree of the Government of the Russian Federation dated June 5, 1994 No. 625.

2.1. Law of the RSFSR "On the sanitary and epidemiological well-being of the population" No. 1034-1 dated April 19, 1992

2.2. "Regulations on the State Sanitary and Epidemiological Service" No. 625 dated June 5, 1994.

2.3. “Regulations on state sanitary and epidemiological regulation” No. 625 of June 5, 1994.

2.4. SanPiN 3.05.04-85 “External networks and structures of water supply and sewerage.”

2.5. “List of materials, reagents and small-sized treatment devices permitted by the State Committee for Sanitary and Epidemiological Supervision of the Russian Federation for use in the practice of domestic and drinking water supply” No. 01-19/32-11 dated 10.23.92

2.6. “List of domestic and foreign disinfectants, approved for use on the territory of the Russian Federation" dated July 29, 1993 and No. 0015-93 dated December 20, 1993.

3. Requirements for choosing the location of water intake structures for non-centralized water supply

3.1. The choice of the location of water intake structures for non-centralized water supply is of priority importance for maintaining the consistency of the quality of drinking water, preventing its bacterial or chemical contamination, preventing the incidence of waterborne infections among the population, as well as preventing possible intoxications.

3.2. The choice of location for water intake structures is carried out by their owner with the involvement of relevant specialists and is carried out on the basis of geological and hydrogeological data, as well as the results of a sanitary survey of the surrounding area.

3.3. Geological and hydrological data must be presented to the extent necessary to resolve the following issues: depth of groundwater, direction of groundwater flow in terms of the populated area, approximate thickness of the aquifer, possibility of interaction with existing or projected water intakes in neighboring areas, as well as with surface waters (pond, swamp, stream, reservoir, river).

3.4. The sanitary survey data must contain information about the sanitary condition of the location of the designed water intake structure and the adjacent territory, indicating existing or possible sources of bacterial or chemical water pollution.

3.5. The location of water intake structures should be chosen in an uncontaminated area, located at least 50 meters* upstream of groundwater from existing or possible sources of pollution: cesspools and pits, burial places of people and animals, warehouses for fertilizers and pesticides, local industrial enterprises, sewerage structures, etc.

*If it is impossible to maintain this distance, the location of water intake structures in each specific case is agreed with the center of state sanitary and epidemiological surveillance.

3.6. Water intake structures for non-centralized water supply should not be installed in areas flooded by flood waters, in wetlands, as well as places subject to landslides and other types of deformation, as well as closer than 30 meters from highways with heavy traffic.

3.7. The number of people using a non-centralized source of water supply is determined in each specific case based on the flow rate of the source and accepted water consumption standards. At the same time, water intake structures must ensure the passage of the required volumes of water through them.

4. Requirements for the design and equipment of water intake structures for non-centralized water supply

4.1. The correct design and equipment of water intake structures allows us to solve not only the issues of reliability and durability of such structures, ease of use, but also the protection of water from pollution and clogging.

4.2. The most common water intake structures in populated areas are shaft and tube wells of various designs and depths, as well as springs (springs).

4.3. Requirements for the construction of mine wells

4.3.1. Mine wells are designed to obtain groundwater from the first free-flowing aquifer from the surface. Such wells are a round or square shaft and consist of a head, a shaft and a water intake part.

4.3.2. The head (the above-ground part of the well) serves to protect the shaft from clogging and pollution, as well as for observation, water lifting, water intake and must be at least 0.7-03 m above the ground surface.

4.3.3. The well head must have a lid or a reinforced concrete ceiling with a hatch, also closed with a lid. The top of the head is covered with a canopy or a booth is placed.

4.3.4. Along the perimeter of the well head there should be a “castle” made of well-pressed and thoroughly compacted clay or rich loam with a depth of 2 meters and a width of 1 meter, as well as a blind area of ​​stone, brick, concrete or asphalt with a radius of at least 2 meters with a slope of 0.1 meters from the well towards the ditch (tray). There should be a fence around the well, and a bench for buckets should be placed near the well.

4.3.5. The shaft (shaft) serves for the passage of water-lifting devices (buckets, buckets, scoops, etc.), and also, in some cases, for placing water-lifting mechanisms. The walls of the shaft must be dense, well insulating the well from the penetration of surface runoff, as well as high water.

4.3.6. For lining the walls of a well, concrete or reinforced concrete rings are primarily recommended. In their absence, the use of stone, brick, and wood is allowed. The stone (brick) for lining the walls of the well must be strong, without cracks, non-staining of water and laid in the same way as concrete or reinforced concrete rings on cement mortar(high grade cement that does not contain impurities).

4.3.7. When constructing log houses, certain types of wood must be used in the form of logs or beams: for the crowns of the surface part of the log house ¾ spruce or pine, for the water intake part of the log house ¾ larch, alder, elm, oak. The timber must be of good quality, cleared of bark, straight, healthy, without deep cracks and wormholes, not infected with fungus, harvested 5-6 months in advance.

4.3.8. The water intake part of the well serves for the influx and accumulation of groundwater. It should be buried in the aquifer to better open the formation and increase the flow rate. To ensure a large flow of water into the well, the lower part of its walls can have holes or be arranged in the form of a tent.

4.3.9. To prevent soil from bulging out from the bottom of the well by rising groundwater flows, the appearance of turbidity in the water and to facilitate cleaning, a return filter should be placed at the bottom of the well.

4.3.10. To descend into the well during repair and cleaning, cast-iron brackets must be embedded in its walls, which are staggered at a distance of 30 cm from each other.

4.3.11. The rise of water from mine wells is carried out using various devices and mechanisms. The most acceptable from a hygienic point of view is the use of pumps of various designs (manual and electric). If it is not possible to equip a well with a pump, it is allowed to install a gate with one or two handles, a gate with a wheel for one or two buckets, a “crane” with a public, firmly attached bucket, etc. The size of the bucket should approximately correspond to the volume of the bucket so that water can be poured from it into the buckets did not present any difficulties.

4.4. Requirements for the installation of tube wells

4.4.1. Tube wells are designed to obtain groundwater from aquifers located at various depths, and can be shallow (up to 8 m) or deep (up to 100 m or more). Tubular wells consist of a casing pipe (pipes) of various diameters, a pump and a filter.

4.4.2. Small tube wells (Abyssinian) can be for individual and public use; deep (artesian wells), usually for public use.

Note: requirements for the design and equipment of artesian wells are set out in SanPiN 3.05.04-85 “External networks and structures of water supply and sewerage.”

4.4.3. When equipping tube wells (filters, protective screens, pump parts, etc.), materials included in the “List of materials, reagents and small-sized treatment devices approved by the State Committee for Sanitary and Epidemiological Supervision of the Russian Federation for use in domestic and drinking water supply practice” must be used.

4.4.4. The head of the tube well must be 0.8-1.0 m above the ground surface, hermetically sealed, have a casing and drain pipe equipped with a hook for hanging the bucket. A blind area (see paragraph 3.3.4) and a bench for buckets are arranged around the head of the well.

4.4.5. Water is lifted from a tube well using manual or electric pumps.

4.5. Requirements for the installation of spring drains

4.5.1. Captages are designed to collect groundwater that wedges out to the surface from ascending or descending springs (springs) and are specially equipped drainage chambers of various designs.

4.5.2. Water is taken from the ascending springs through the bottom of the capture chamber, and from the descending springs ¾ through holes in the chamber wall.

4.5.3. Captage chambers of descending springs must have waterproof walls (except for the wall on the aquifer side) and a bottom, which is achieved by constructing a “castle” of crumpled, compacted clay. The chambers of the rising springs are equipped with a clay “castle” along the entire perimeter of the walls. The wall material can be concrete, brick or wood of certain species (see clauses 4.3.6 and 4.3.7).

4.5.4. Escape chambers must have a neck with a hatch and a lid, be equipped with water intake and overflow pipes, and have an emptying pipe with a diameter of at least 100 mm, ventilation pipe and must be placed in special ground structures in the form of a pavilion or booth. The area around the captage must be fenced.

4.5.5. The water intake pipe must be equipped with a tap with a hook for hanging a bucket and placed 1-1.5 m from the drainage. There is a bench for buckets under the crane. On the ground, at the end of the water intake and overflow pipes, a paved tray is installed to drain excess water into the ditch.

4.5.6. The neck of the capture chamber must be insulated and rise above the ground surface by at least 0.8 m. To protect the capture chamber from flooding by surface water, blind areas made of brick, concrete or asphalt must be equipped with a slope towards the drainage ditch.

4.5.7. In order to protect the capture chamber from sand drift, a return filter is installed on the side of the water flow, and to free water from suspension, the capture chamber is divided by an overflow wall into two compartments: one ¾ for settling the water and its subsequent purification from sediment, the second ¾ for collecting clarified water.

4.5.8. To inspect, clean and disinfect the drainage, doors and hatches, as well as steps or brackets, must be installed in the cell wall. The entrance to the chamber should not be located above the water, but placed to the side so that dirt from the threshold or feet does not fall into the water. Doors and hatches must be of sufficient height and size to provide easy access to the capture chamber.

5. Requirements for water quality of non-centralized water supply

5.1. In terms of its composition and properties, non-centralized water supply water must comply with the standards given in the table.

5.2. Depending on local natural and sanitary conditions, as well as the epidemic situation in a populated area, the list of monitored water quality indicators given in clause 5.1 is expanded by resolution of the bodies and institutions of the State Sanitary and Epidemiological Service of the Russian Federation.

6. Requirements for the maintenance and operation of water intake structures for non-centralized water supply

6.1. Proper maintenance and operation of water intake structures is crucial, first of all, in the prevention of bacterial contamination of drinking water. Local governments, collective or individual owners are responsible for maintaining water intake structures in proper sanitary and technical condition.

6.2. Within a radius of closer than 20 m from the well (drainage) it is not allowed to wash cars, water animals, wash and rinse clothes, as well as carry out other activities that contribute to water pollution.

6.3. The most rational way of drawing water from wells (captages) is to lift water using a pump, or, in extreme cases, using a public bucket (tub). It is not permitted to lift water from a well (captage) with buckets brought by the population, as well as to scoop water from a public tub with ladles brought from home.

6.4. To insulate and protect water intake structures from freezing, clean compressed straw, hay, shavings or sawdust should be used, which should not fall into the well (captage). It is not allowed to use glass wool or other synthetic materials not included in the “List of materials, reagents and small-sized treatment devices approved by the State Committee for Sanitary and Epidemiological Supervision of the Russian Federation for use in domestic and drinking water supply practice.”

To protect electric pumps from freezing, it is necessary to provide heating.

6.5. Cleaning of the well (drainage) must be carried out upon the first request of the center of state sanitary and epidemiological supervision, but at least once a year with simultaneous routine repairs of equipment and fastenings.

6.6. After each cleaning or repair, water intake structures must be disinfected with chlorine-containing reagents and then washed.

6.7. Cleaning, disinfection and flushing of water intake structures is carried out at the expense of local budget funds or funds of collective and private owners in accordance with their affiliation.

6.8. In case of wear and tear of equipment (corrosion of pipes, silting of filters, collapse of log houses, etc.), a sharp decrease in flow rate or shallowing, an irreparable deterioration in the quality of water that has become unsuitable for drinking and household needs, the owner of water intake structures is obliged to eliminate them. After dismantling the surface equipment, backfilling (grouting) of the well should be carried out with clean soil, preferably clay with dense compaction. Taking into account soil shrinkage, a mound of earth 0.2-0.3 m high should rise above the abandoned well.

7. Control over the quality of water from non-centralized water supply

7.1. Water quality control must comply with local sanitary and epidemiological conditions and be closely related to sanitary measures carried out in the populated area.

7.2. In order to ensure consistency of water quality, safety and acceptability of water supply to the population, control should include a systematic sanitary inspection of not only the source of water supply, equipment and devices, but also the territory adjacent to water intake structures (Appendices 3, 4, 5).

7.3. To comply with the requirements of these “Sanitary Rules and Norms”, it is necessary to divide the supervision functions between the owner responsible for the water supply and the center of state sanitary and epidemiological supervision, independent from him.

7.4. Responsibility for the sanitary condition of the territory, the quality and safety of water lies with local governments or gardening partnerships, which are in charge of water intake devices and public facilities.

These organizations must identify persons responsible for the technical condition of water intake structures, for their proper maintenance and operation, for the condition of the territories adjacent to them, and also charge them with the responsibility for periodic, agreed upon timing with the center of state sanitary and epidemiological supervision, water sampling and delivering them to the center’s laboratory for analysis.

7.5. Persons responsible for the maintenance and operation of water intake structures must know the requirements of these “Sanitary Rules and Standards” and must be trained in the methods of collecting water samples for analysis and the rules for delivering them to the laboratory.

7.6. Centers for state sanitary and epidemiological surveillance carry out planned or selective monitoring of the water quality of wells and drains for public use, as well as monitoring based on one-time requests from gardening partnerships or private owners on an economic contractual basis.

7.7. For newly built water intake structures for public or individual use, it is necessary to conduct a water quality study at the expense of territorial self-government bodies, collective or private owners.

7.8. If, during ongoing monitoring of water quality in a well (captage), an increase in the coli index is noted compared to the standard, additional tests of the water in the well (captage) should be carried out for the presence of fecal coliform bacteria, as well as ammonium compounds, nitrates and chlorides. The appearance of these chemicals in water in concentrations exceeding standard values, or an increase in their content compared to the results of previous studies, indicates the presence of organic water pollution, the cause of which must be identified and eliminated, and preventive disinfection of the well (drainage) must be carried out.

7.9. Preventive disinfection should be carried out after cleaning the well (Appendix 1) followed by drawing up a report (Appendix 2).

7.10. If the sanitary inspection failed to identify or eliminate the cause of deterioration in water quality, or if cleaning, rinsing and preventive disinfection of the well (capture) did not lead to a permanent improvement in water quality, the water in the well (capture) must be constantly disinfected with chlorine-containing reagents.

7.11. In case of an unfavorable epidemic situation in a populated area or if it is necessary due to local conditions to use groundwater that is not sufficiently protected from the surface, as evidenced by a significant increase in the flow rate of the well (captage) in a short time after precipitation, the water in the well (captage) must be disinfected constantly or for a certain period agreed with the center of state sanitary and epidemiological surveillance (Appendix 1).

7.12. Monitoring the effectiveness of water disinfection in a well (captage) is carried out by the center of state sanitary and epidemiological surveillance within the time frame established by it.

Annex 1

(required)

Methodology for disinfection of mine wells and disinfection of water in them

1. Disinfection of mine wells

The need for disinfection of wells is established by the centers of state sanitary and epidemiological surveillance and is carried out:

According to epidemiological indications (during an outbreak intestinal infections in a populated area or when wells get into water Wastewater, feces, animal corpses, etc.);

For preventive purposes (upon completion of construction of new wells or after cleaning and repair of existing wells).

To disinfect wells, you can use any disinfectants suitable for this purpose, included in the “List of domestic and foreign disinfectants approved for use on the territory of the Russian Federation” (No. 0014-9D dated July 29, 1993). Most often, chlorine-containing preparations (¾ bleach or two-thirds calcium hypochlorite salt) are used for these purposes.

1.1. Disinfection of wells according to epidemiological indications.

Disinfection of wells according to epidemiological indications includes:

Preliminary disinfection of the well;

Well cleaning;

Repeated disinfection of the well.

1.1.1. preliminary disinfection of the well.

Before disinfecting a well, the volume of water in it (m3) is determined using a calculation method by multiplying the cross-sectional area of ​​the well (m2) by the height of the water column (m).

1.1.1.1. The outer and inner parts of the mine shaft are irrigated from a hydraulic console with a 5% solution of bleach or a 3% solution of DTSGK at the rate of 0.5 liters per 1 m2 of surface.

1.1.1.2. Knowing the volume of water in the well, the lower (aqueous) part of it is disinfected by adding chlorine-containing preparations at the rate of 100-150 mg (g) of active chlorine per 1 liter (m3) of water in the well.

The water is thoroughly mixed, the well is covered with a lid and left for 1.5-2 hours, preventing water from being drawn from it.

1.1.1.3. Calculation of the amount of bleach or DTSGC required to create a given dose of active chlorine in the water of a well (100-150 mg (g) per 1 l (m3) is carried out according to the formula:

, Where

R¾ amount of bleach or DTSGC, g;

WITH¾ specified dose of active chlorine in well water, mg/l (g/m3);

E ¾ volume of water and well, m3;

N¾ active chlorine content in the preparation, %;

100 ¾ numerical coefficient.

1.1.2. Well cleaning.

Cleaning is carried out 1.5-2 hours after preliminary disinfection of the well.

1.1.2.1. The well is completely emptied of water, cleaned of foreign objects and accumulated silt that have fallen into it. The walls of the shaft are cleaned mechanically from fouling and contamination.

1.1.2.2. The dirt and silt selected from the well are taken to a landfill or immersed in a 0.5 m deep hole dug in advance at a distance of at least 20 m from the well and buried, having first filled the contents of the hole with a 10% solution of bleach or a 5% solution of DTSGK.

1.1.2.3. The walls of the shaft of the cleaned well are repaired if necessary, then the outer and inner parts of the shaft are irrigated from a hydraulic console with a 5% solution of bleach or a 3% solution of DTSGK at the rate of 0.5 l/m3 of the shaft.

1.1.3. Repeated disinfection of the well.

After cleaning, repairing and disinfecting the walls of the shaft, they begin to re-disinfect the well.

1.1.3.1. The time during which the well is refilled with water is maintained, the volume of water in it (m3) is re-determined and the required amount of bleach solution or DTSGK is added at the rate of 100-150 mg (g) of active chlorine per 1 liter (m3) of water in the well.

1.1.3.2. After adding the disinfectant solution, the water in the well is stirred for 10 minutes, the well is closed with a lid and left for 6 hours, preventing water from being drawn from it.

1.1.3.3. After the specified period, the presence of residual chlorine in the water is determined qualitatively by smell or using the iodometric method. If there is no residual chlorine, add 0.25 - 0.3 of the initial amount of disinfectant to the water and leave for another 3 - 4 hours.

1.1.3.4. After re-checking for the presence of residual chlorine and positive results of such testing, pump out the water until the strong smell of chlorine disappears. And only after this the water can be used for drinking and household purposes.

1.2. Disinfection of wells for preventive purposes.

1.2.1. When disinfecting wells for preventive purposes, preliminary disinfection is not carried out.

1.2.2. Cleaning and repair of the well, as well as disinfection of the walls of the newly constructed well, are completed by disinfecting the well using the volumetric method (see paragraph 1.1.3).

2. Disinfection of water in wells

The need to disinfect water in wells is established by the center of state sanitary and epidemiological surveillance to prevent the spread of infections among the population through well water and is carried out:

As a temporary preventive measure in areas of intestinal infections;

When well water does not meet the water quality requirements of a non-centralized water supply according to the value of the coli index.

2.1. Disinfection of water in a well is carried out after disinfection of the well itself using various techniques and methods, but most often using a dosing cartridge, usually filled with chlorine-containing preparations.

2.2. In the process of disinfecting water in a well with chlorine-containing preparations, the amount of residual (active) chlorine should be at the level of 0.5 mg/l. Achieving this level depends on a number of factors, the main one of which is the amount of disinfectant required to fill the dosing cartridge, with the help of which water is disinfected.

2.3. To calculate the amount of disinfectant in the dosing cartridge (A), the following parameters are determined:

A1 ¾ volume of water in the well, m3;

А2 ¾ flow rate of the well, m3/h;

A3 ¾ amount of water intake, m3/day (determined by surveying the population);

A4 ¾ chlorine absorption of water.

The calculation is carried out according to the formula:

A \u003d 0.07A1 + 0.08A2 + 0.02A3 + 0.14A4.

Notes:

a) the formula is given to calculate the amount of DTSGC containing 52 % active chlorine, at a water temperature of 17-18 ° C;

b) for bleach containing 25 % active chlorine, the calculation is made using the same formula, but the calculated amount of the drug is increased by 2 times;

c) if the content of active chlorine in DTSGC or bleach is different¾ make a recount;

d) at a water temperature of 4-6 °C (in winter), the amount of the drug determined by calculation is increased by 2 times;

e) determination of well flow rate and chlorine absorption of water is given below.

2.4. Based on the quantity of the drug, select a cartridge suitable for its capacity (or several cartridges of smaller capacity), fill it with the drug, add water while stirring until a uniform slurry is formed, close with a stopper and immerse in the water of the well at a distance of 20 to 50 cm from the bottom, depending on the height of the water pillar, and the free end of the rope (twine) is secured to the head of the shaft.

2.5. The effectiveness of water disinfection in a well is determined by determining the value of residual chlorine (0.5 mg/l) and the value of the coli index (no more than 10). The frequency of repeated determinations should not be less than once a week).

2.6. When the amount of residual chlorine decreases or disappears (after about 30 days), the cartridge is removed from the well, emptied of its contents, washed and refilled with a disinfectant. At the same time, the necessary adjustments are made based on the initial experience of disinfecting water in the well.

Determination of well flow rate.

Measure the volume of water in the well, quickly pump out the water (3-10 minutes) and note the time during which the water level in the well is restored.

The calculation is carried out according to the formula:

Where

D¾ well flow rate, l/h;

V¾ volume of water in the well before pumping, l;

t¾ time in minutes during which the water level was restored, plus the time during which the water was pumped out;

60 ¾ numerical coefficient.

Determination of chlorine absorption of well water.

1 liter is taken into the vessel well water, add a 1% solution of bleach or DTSGC at the rate of 2 mg/l of active chlorine (for clear water) or 3-5 mg/l (for cloudy water). The contents of the vessel are mixed well, closed with a stopper, left for 30 minutes and the amount of residual chlorine in the water is determined.

The chlorine absorption capacity of water is calculated by determining the difference between the amount of active chlorine introduced into the vessel and the amount of it in the water after 30 minutes of contact.

The act of washing, cleaning and disinfecting wells (drains)

Locality _______________ “___” _________ 199__

Commission consisting of representatives:

Center for State Sanitary and Epidemiological Surveillance in

(city, district)

__________________________________________________________

(position, surname, first name, patronymic)

Business entity ___________________________________

__________________________________________________________

(name of economic entity, position, surname, first name, patronymic of the representative

have drawn up this act in that well spring capture

(cross out what is unnecessary)

__________________________________________________________

__________________________________________________________

(location, technical data ¾ depth, volume, etc.)

subjected to cleaning, rinsing and disinfection by chlorination ____________________________ at the concentration of active

(specify which reagent)

chlorine ________ mg/dm3 (g/m3), contact duration _____ h “___” ________199__g.

The results of physicochemical and bacterial analyzes after completion of disinfection on _____ sheets are attached.

Representative of the State Center

sanitary and epidemiological surveillance _______________________

Representative of a business entity _______________________

Sanitary and hygienic inspection program for a mine well

1. Region, district, locality, street, well No., survey date.

2. Location of the well.

2.1. On the territory of a populated area ¾ on the street, square, in the spaces between houses, garden, vegetable garden.

2.2. Outside a populated area ¾ on the territory of a livestock farm, poultry house, farm yard, enterprise (institution), etc.

2.3. On level ground, on a hill, on a slope, in a lowland, in a ravine or near a ravine, in a clearing, on the shore of a reservoir.

2.4. Does the well flood during snow melting, heavy rains, or floods?

3. How many houses and residents does the well serve, service radius.

4. When the well is built. When was it last repaired, cleaned, disinfected?

5. Type of well: log, concrete, brick, other material.

5.1. Log material: oak, pine, alder, etc.

5.2. The height of the walls above ground level.

5.3. The depth of the well from the surface of the earth to the bottom and to the water surface.

5.4. Volume of water in the well.

5.5. Is there a clay “castle”, to what depth and thickness?

6. From what horizon does water collect?

7. Condition of the inner surface of the well walls.

8. Condition of the soil surface around the well.

8.1. Presence of tiling, at what distance.

8.2. The presence of a slope, drainage ditch and fencing.

8.3. Is there a trough for watering livestock, at what distance from the well.

9. Method of lifting water from a well: pump, winch, crane.

10. Is there a tub or bucket (public, individual), a stand for buckets.

11. The presence of a cover, fleece or booth, their condition.

12. Distance from residential buildings, roadways, cesspools and garbage pits, manure storage facilities, and other sources of pollution.

13. Sources of pollution are located along the topography above or below the well.

14. The nature of the soil between the well and the source of pollution (sandy, clayey, chernozem).

15. Water consumption in the well per day, whether the water is completely drawn out or not.

16. Fluctuations in the water level in the well (depending on the seasons, depending on rain, snow melting).

17. Data from laboratory analyzes of water quality.

19. Distribution data infectious diseases in a populated area.

20. Data on other diseases of the population that can be associated with the water factor (intoxication).

21. Data on epizootics of rodents and domestic animals in the area, on the territory of a populated area.

22. Who supervises the well and is responsible for its sanitary condition.

23. General conclusion about the sanitary and hygienic condition of the well and the necessary measures.

Note: Based on the program, the “Map of the object of current sanitary supervision” is carried out (form No. 307/U).

Tube Well Hygiene Inspection Program

1. Region, district, settlement, street, house No., well No., survey date.

2. Location of the well: outside a populated area, on the territory of a populated area, inside a building.

3. Who owns the well (owner).

4. How many houses and residents does the well serve, service radius.

5. When the well was built and when it was repaired.

6. Method of penetration: drilling, driving, digging with additional drilling, etc.

7. Depth of the well, from which aquifer the water is extracted.

8. The depth of the constant water level in the well from the surface.

9. Well productivity (flow rate), self-flowing or not.

10. Changes in water level over time, nature, magnitude and possible reasons for the change.

11. Material of the walls of the tube well, presence of a filter, protective mesh, mesh material.

12. Arrangement of the head, presence of a booth or pavilion.

13. Method of raising water (manual or electric pump).

14. Protection against freezing (type and nature of insulation, insulating material, electric heating of the pump).

15. The presence of a clay “castle”, paving, drainage ditch, stand for buckets.

16. Sources of possible contamination, their distance from the well.

17. Data from laboratory water tests.

18. When and by whom the last analysis was carried out.

19. Who is responsible for the sanitary condition of the well.

20. General conclusion on the sanitary and hygienic condition of the tube well and the necessary measures.

Program for sanitary and hygienic inspection of spring drainage

1. Region, district, locality.

2. Location of the captage. Doesn't the drainage flood during floods, heavy rains, or melting snow?

3. Who owns the capture?

4. How many houses and residents are served by the captage, service radius.

5. The nature of the spring.

5.1. Is the spring ascending or descending, from which aquifer the spring wedges out, the degree of protection from surface pollution.

5.2. The amount of water obtained by capture per day.

5.3. Is there a fluctuation in water level according to the seasons of the year, during floods and heavy rains?

6. Year of construction.

7. Year of last repair.

8. When and by whom was the drainage last cleaned and disinfected?

9. Condition of the soil surface around the drainage (presence of paving, drainage ditch, fence).

10. Availability of a pavilion or booth.

11. Captage device.

11.1. The design of the capture chamber, the material of the walls, the tightness of the walls, the presence of a clay “castle”.

11.2. Possibility of water clarification (presence of an overflow wall).

11.3. Availability of overflow and mud pipes; the place where water is drained from the overflow and mud pipes, its paving, the presence of a tray.

11.4. The presence of a ventilation pipe, its height above ground level, protection of the ventilation pipe.

11.5. The presence of a door and a hatch with a lid, the possibility of organizing cleaning.

12. Frost protection (type and nature of insulation).

13. Sources of possible contamination, their distance from the drainage, location along the relief in relation to the capture.

14. Data from laboratory water tests. When and by whom was the last analysis carried out?

15. Data on the spread of infectious diseases in populated areas.

16. Data on other diseases of the population associated with the water factor (intoxication).

17. Data on epizootics of rodents and domestic animals in the area, on the territory of a populated area.

18. Who carries out sanitary supervision and is responsible for the sanitary condition of the drainage.

19. General conclusion about the sanitary and hygienic condition of the capture and the necessary measures.

Drinking water, as a valuable natural resource, is protected by the state. Protected sanitary zones are established for all water supply sources, the boundaries of which are regulated by SanPiN 2.14.1110-02.
From this article you will learn how the sanitary protection zone of an artesian well is determined.

Sanitary zone belts

According to the SanPiN instructions, three security belts are installed around, the task of which is to prevent contamination of water by all types of contaminants.

I belt

This is a strict security zone directly adjacent to the water well and the area where water management equipment is located. Its task is to protect hydraulic structures from intentional or accidental damage and pollution.
The radius of the first zone, depending on the type of soil and the degree of natural protection of the aquifer, is taken equal to 50 or 30 meters from the well.

Note. First secured territory drinking water wells can be reduced to 15 meters in radius in agreement with Rospotrebnadzor, if the structure is operated on an area with a reliably protected horizon and is maintained in good sanitary and technical condition.

II belt

The second belt of the well sanitary protection zone covers an area with restrictions on bacterial hazards.
There should not be any, even potential sources of bacteriological contamination, which include such objects as:

• Animal burial grounds;
• Cemeteries;
• Silo pits;
• Poultry and livestock farms;
• Sewage facilities and yard toilets;
• Manure storage facilities;
• Landfills;
• Chemical and fertilizer warehouses;
• Filtration and sewage disposal fields.

III belt

The purpose of establishing this zone is to protect against chemical contaminants that can penetrate through the soil into groundwater.
It is prohibited to place objects that are a source of chemical hazard in this zone:

• Harmful chemical production;
• Industrial waste storage tanks;
• Warehouses mineral fertilizers, pesticides and fuels and lubricants;
• Sludge storage facilities, etc.

For reference. The calculation of the length of the last two zones in each specific case is carried out individually depending on the level of soil permeability and other local parameters.

Sanitary protection zone project

The sanitary protection zone (SZZ) project is developed by specialized hydrogeological organizations on the basis of a hydrogeological conclusion for the area where the hydraulic structures. As a rule, the project is drawn up as part of a project on, but can also be an independent document if the structure already exists.

Advice. The price of the ZSO project will be significantly lower if it is created in parallel with the construction of a well, which is preceded by various surveys.

If you are the owner of a water intake used only for personal needs, the sanitary zone of an artesian well is calculated using a simplified method. If the production water is coming on an industrial scale and supplied to many consumers, the project must take into account the slightest nuances that can affect its quality.
But this is the task of the contractor, and the customer only needs to ensure unhindered access to the water intake area and provide the following documents (for legal entities):

• Data of the head of the enterprise and the person responsible for subsoil use;
• Company details: TIN, OGRN, etc.;
• Documents for the right to use the site on which the enterprise and water wells are located;
• Cadastral plan;
• General plan of the enterprise with a layout of facilities;
• Situational plan;
• Brief description of the enterprise's activities;
• Detailed water supply diagram of the enterprise indicating water management equipment, water supply to subscribers, distribution of water for its intended purpose;
• Calculation of water disposal and water consumption, agreed upon by the territorial body of the basin water management;
• An agreement with a contractor for the reception and disposal of wastewater or a certificate of availability of your own system treatment facilities, which should indicate their coordinates and disposal method.

If a water intake well already exists, but the sanitary protection zone for it has not been defined or is outdated, you will have to restore some documents yourself, as well as collect new ones, in order to obtain a sanitary and epidemiological conclusion for the operation of the water intake.
This:

• Technical with drilling report;
• Results of laboratory analyzes of water from a well for the entire period of its operation, starting from the year of drilling. Recent studies must be no more than 3 months old.

Note. The analysis must be performed by a certified laboratory. The results are documented in the form of laboratory test reports for general, organoleptic, organic, microbiological and radiological indicators.

• Water treatment scheme (if any) and the principle of its operation with water analysis protocols before and after treatment;
• Results of geophysical surveys, if the well is more than 25 years old;
• A certified copy of the license for the right to use subsoil;
• Copies of other available documents - conclusions of sanitary-epidemiological, hydrogeological, expert and other services.

I would like to repeat once again: all such documents are drawn up and obtained much easier and faster if this is done in a timely manner, in parallel with surveys and work on constructing a well.

Conclusion

The boundaries of sanitary zones are established indefinitely, but only on the condition that the operating mode of the well does not change. In the event that the owner of the water intake has changed, the boundaries of the site, the amount of water consumed, the water supply scheme have changed, or the quality of the water has deteriorated, the Rospotrebnadzor authorities should be notified about this and a new conclusion should be obtained.
It will also be required in the case of plugging an existing well or drilling new ones. You will receive additional information on this topic if you watch the video in this article.

State sanitary and epidemiological regulation
Russian Federation

State sanitary and epidemiological
rules and regulations

2.1.4. DRINKING WATER AND WATER SUPPLY
PLACES

Hygienic requirements
to the quality of non-centralized water
water supply Sanitary
source protection

Sanitary and epidemiological rules and regulations

SanPiN 2.1.4.1175-02

Ministry of Health of Russia

Moscow· 2003

1. Developed by: Dr. med. A. A. Korolev, Doctor of Medicine M. V. Bogdanov, Ph.D. A. A. Semenova (MMA named after I. M. Sechenov), Ph.D. A. E. Nedachin, Ph.D. n. T. Z. Artemova (Research Institute of ECh and State OS named after A. N. Sysin), Doctor of Medical Sciences V. L. Suslikov (Chuvash State University), Doctor of Medical Sciences A. V. Ivanov (Kazan Medical University), Ph.D. A. A. Orlov (Saratov Research Institute of Rural Hygiene of the Ministry of Health of the Russian Federation), A. I. Rogovets (TsniS at the Ministry of Health of the Russian Federation), Ph.D. M. M. Gasilina, with the participation of A. P. Veselov (Department of the State Sanitary and Epidemiological Service of the Ministry of Health of the Russian Federation).

3. Approved by the Chief State Sanitary Doctor of the Russian Federation - First Deputy Minister of Health of the Russian Federation G. G. Onishchenko on November 17, 2002.

4. From the moment of introduction of these sanitary rules “Requirements for water quality of non-centralized water supply. Sanitary protection of sources SP 2.1.4.554-96" loses force.

5. Registered with the Ministry of Justice of the Russian Federation on December 20, 2002. Registration No. 4059.

the federal law
“On the sanitary and epidemiological well-being of the population”
dated March 30, 1999 No. 52-FZ

“State sanitary and epidemiological rules and regulations (hereinafter referred to as sanitary rules) - regulatory legal acts establishing sanitary and epidemiological requirements (including criteria for the safety and (or) harmlessness of environmental factors for humans, hygienic and other standards), non-compliance which creates a threat to human life or health, as well as a threat to the emergence and spread of diseases” (Article 1).

“On the territory of the Russian Federation, federal sanitary rules are in force, approved and put into effect by the federal executive body authorized to carry out state sanitary and epidemiological supervision in the manner established by the Government of the Russian Federation.

Compliance with sanitary rules is mandatory for citizens, individual entrepreneurs and legal entities” (Article 39).

“For violation of sanitary legislation, disciplinary, administrative and criminal liability is established” (Article 55).

RUSSIAN FEDERATION

RESOLUTION

25.11.02 Moscow No. 40

On the implementation of sanitary

rules "Hygienic requirements for

water quality non-centralized

water supply Sanitary protection

sources. SanPiN 2.1.4.1175-02"

Based on the Federal Law “On the Sanitary and Epidemiological Welfare of the Population” dated March 30, 1999 No. 52-FZ and the “Regulations on State Sanitary and Epidemiological Standards” approved by Decree of the Government of the Russian Federation dated July 24, 2000 No. 554.

I DECIDE:

Introduce sanitary rules “Hygienic requirements for the quality of water from non-centralized water supply. Sanitary protection of sources. SanPiN 2.1.4.1175-02”, approved by the Chief State Sanitary Doctor of the Russian Federation on November 17, 2002, from March 1, 2003.

G. G. Onishchenko

Ministry of Health of the Russian Federation

CHIEF STATE SANITARY DOCTOR
RUSSIAN FEDERATION

RESOLUTION

25.11.02 Moscow No. 41

On the abolition of sanitary rules

"Water quality requirements

decentralized water supply.

Sanitary protection of sources.