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Security zone sewage collector snip. The security zone of sewer networks requires serious calculations

All faced in life with signs " Secured territory cable "or" Zone of sanitary protection of the reservoir ". But not even all builders know that there is a sewage protection zone. At first glance, the question is logical: "What is there to guard?" However sometimes this ignorance can lead to unpleasant consequences - both owners of private houses, and officials of various assembly organizations. How to avoid it - read on.

Damage to external sewerage networks is not a rare occurrence. And it meets with a frequency even greater than on the mains of water pipes, electricity or communications.

In this regard, earthmoving companies - both legal entities and owners of private land holdings, digging trenches and trenches, have a greater risk of damaging the water disposal system than other communications

Because they do not know that in this place there is a security zone of sewer networks. What is the reason for this?

The duties of owners and operating organizations for the installation of warning signs on the passage of underground cables or pipelines in a given location, the border of the sanitary zone of the reservoir are directly normative acts. In the case of water management, this is the Water Code. In the rest - special laws and regulations.

And only for a sewerage system such requirements are not regulated. In the end - if other communications are damaged, but there was no warning information on this site - the responsibility is borne by the one who did not install the sign. A workman is to blame if the corresponding plate was, but he ignored it.

The situation with drainage pipelines is much more complicated. Here legislators for some reason did not establish clear standards, and network owners are not required to somehow designate the sewage protection zones.

Nevertheless, from the point of view of legislation, damage to sewage equipment is an administrative offense.

Note! The Administrative Code reads: "Article 7.7. Damage of objects and systems of water supply, water disposal, hydraulic structures, devices and installations for water management and water security purposes

Damage of objects and systems of water supply, water disposal, hydraulic structures, devices and installations for water management and water security purposes entails the imposition of an administrative fine on citizens in the amount of one thousand to one thousand five hundred rubles; on officials - from two thousand to three thousand rubles; on legal entities - from twenty thousand to thirty thousand rubles. "

It should be noted that the article only talks about direct damage to systems and structures. If at the same time there were harmful effects on the environment - this would be another offense, perhaps not one. And the damage caused to the guilty will have to be repaid. So it is quite possible, doing your own thing, and not thinking anything bad, get into serious trouble.

Precautionary measures

Given the possible negative consequences, it is worth trying to prevent their occurrence. When undertaking earthworks, you should study the surrounding area.

The main sign of the presence of various sewerage is the hatches with characteristic large letter "K". Issue it can also coordinate signs or marking with paint.

But even if they are not found - it's better to be safe and contact the local water canal. There are schemes of all sewer lines on which it is indicated whether or not a sewage collector or other structure is located in this section.

Moreover, in order to avoid subsequent inconsistencies, it is better to ask for a certified copy of the plan. If it turns out that the security zone there is still there - you can immediately apply for permission to work. Without such permission, it is impossible to carry out work near the sewage system.

Dimensions of guard zones

Normative requirements for the size of sewage protection zones are useful to know not only so as not to accidentally damage pipelines. After all, often construction firms or owners of households organize their own. And while they also require compliance with the established parameters. They are regulated by the requirements of several SNIPs.

Note! Documents regulating the rules of sewerage:

SNiP 40 - 03 - 99 «Sewerage, external networks and structures»,

SNiP 3.05.04 - 85 * "External networks and structures of water supply and sewerage" and SNiP 2.05.06 - 85 "Trunk pipelines. Building regulations".

However, the SNiPs set general standards, specific figures are set by the local bodies of representative power - the Legislative Assembly, etc.

For normal conditions, the guard zone of the pressure sewer is 5 m in each side from the edge of the side wall of the pipe. The same applies to the gravity drainage system.

The special conditions affecting the size of sanitary protection zones include the low average annual temperature of the region, high seismic hazard, weak and waterlogged soils, and other conditions specified in SNiPs. As a rule, in such cases, POPs increase to a distance of 10 m 5 m in each direction from the edge of the side wall of the pipeline.

Similarly, a security zone is set up storm sewage.

Sewerage protection

Sewerage is a source of increased danger of pollution for water pipes and water supply sources. Therefore, not only buildings and roads should be referred from it to a certain distance. Wastewater networks also can not be located closer than certain distances to waterways.

And the figures are impressive. Sewerage in the water protection zone should be located at a distance of at least: 250 m - from the water edge of rivers, 100 m - from the shore of the lake, 50 m - from underground water sources.

Sufficiently stringent requirements are also imposed on the mutual arrangement of water supply and drainage pipelines. This is 10 m for a water pipe with a diameter of up to 1000 mm, 20 m - for large diameters, and 50 m - if pipes pass in wet ground, while the diameter of the role does not play.

Advice! Set up sewerage in the zones of sanitary protection of water supply facilities better with a margin of 10% or more of the regulatory requirements. There are often cases when the measurement data, and even the piercing of the builder's pits and the organization dealing with water supply, differed. According to the Vodokanal, the territory where the security zone is installed sewerage captures, according to the builders - no. As a rule, the last word is left for water experts.

Careful planning and accurate project delivery to the area should be given the utmost attention. After all, the transfer of a ready sewer network will be very expensive in any case, and sometimes it is simply technically impossible.

Exploitation can not be carried out categorically, since even this very fact, even in the absence of an accident, is already an offense, and even if the contamination of the water supply facility with sewage sludge has occurred, it can even be a criminal liability.

Important nuances

A careful attitude to the requirements of SNiPs is mandatory for both the organizers of the sewage system, and for those who carry out any work or erect objects in the buffer zone of the sewage system or its surroundings.

However, one should also remember about local legislation. On the whole, it is based on the same SNiPs, but individual subjects may have their own settings, which can become an unpleasant surprise.

One should refer to these documents (for example, for the capital it is the Resolution of the Government of Moscow from August 17, 1993 No. 798 "On Approval of the" Rules for the Use of the Moscow City Water Supply and Sewerage Systems "), and take into account their requirements in the production of works.

Often disagreements over the distance between the water supply and sewerage arise because of the fact that according to SNiP 2.07.01-89 * "Urban planning. Planning and development of urban and rural settlements "The regulated distance between the water supply and pressure sewage networks and the foundations of buildings and structures is 5 m.

Many developers are guided by this figure, and fall under the fire of vodokanal sanctions. The fact is that in this SNiPe the minimum allowed distance is indicated. And the dimensions of the guard zone of the highway are regulated by SNiP 2.04.02-84 and SanPiN 2.1.4.1110-02, and their dimensions are specified above in this article.

Law enforcement practice shows that the priority for legal proceedings remains with the latest documents.

The risk of getting into a difficult situation and those who are laying a drainage pipeline near buildings and structures. In these cases, they must be performed from them at a distance established by the standards of the boundaries of the sanitary zone, a reduction in this distance is possible only with the written permission of the owner of the facility. Yes, and in this case, employees of local water utilities periodically try to find violations.

Probably, many of you in your life encountered tablets with inscriptions of protected areas. But not everyone knows that there is such a thing as a sewage protection zone. It would seem that there is no need to protect the territory adjacent to the sewage networks. However, carrying out any actions on this area can lead to harmful consequences. What are the consequences, and what are the measures to protect the drainage networks, we will tell in our article.

Sewerage protection zones are the territories that surround sewer network structures, water bodies and airspace, where the use of certain actions or immovable objects is restricted in order to ensure the protection of the sewerage system.

In such zones, it is necessary to refrain from such actions that contribute to damaging the structures of the sewage system:

plant trees;
prevent the passage to communication facilities of the outflow network;
to produce a warehouse of materials;
engage in construction, mining, blasting, piling works;
to produce, without permission of the owner of the sewage network, load-lifting works near the buildings;
to carry out near the networks located near water bodies, ground movement, bottom deepening, immersion of solids, stretching lags, chains, anchors of water vehicles.

Security zone + sewerage have their own limits, which are set taking into account:

location;
destination;
diameter of buildings;
depth of the gasket.

As a rule, the boundaries are prescribed in a decree issued by the Minister of the Environment, but precise information can be obtained from the local government or water and sewer organizations.

The consequences of not knowing the existence of protected areas

In our life, it is often possible to encounter damage to the external parts of the sewage system, which exceed by the number of cases on communication lines, electricity supply or water supply.

This is the case, because the producers of construction and earth works carry out the actions without knowing that there is a sewage network security zone in this section, while damaging the drainage system.

What is the reason for this ignorance? The installation of warning signs on the territory, for example, a pipeline or cable, is the responsibility of the organizations that operate the facility.

The cases of installing watermarks are prescribed in the Water Code, special signs - in other regulations and laws.

But the case of the installation of the sign that the sewerage zone is located on the territory is not documented.

As a result, in case of damage to communications, responsibility is borne in the case of non-installation of the sign - the operating organization, in case of ignoring the sign - the manufacturer of the work. Legislatively, it is not established that the owners of sewer networks should sign the territory of the guard zone with signs.

Attention. Nevertheless, in the event of damage to sewer networks and structures for the manufacturer of works, administrative liability is provided by law (Administrative Code, art. 7.7).

This is what concerns direct damage to sewage facilities.

If the actions of the manufacturer of works in addition to damage to the system have led to a harmful impact on the environment, then this is another type of offense that carries a different kind of responsibility.

A warning

Council. So, in order not to get into a difficult situation, causing serious trouble, you should thoroughly study the terrain on which a certain type of work is planned.

Analysis of the terrain for the presence of sewer lines and protected areas can be obtained from the local water supply and sewerage organization.

It is best to get acquainted with the copy of the plan. Provided that the security zone is present on the territory, work is necessary to obtain permission.

Regulatory requirements for the use of security zones

What actions can be taken near sewage networks, and which ones are prohibited? Normative requirements on these issues are regulated by SNIP (40-03-99; 3.05.04-85; 2.05.06-85).

Attention. Sanitary norms and rules stipulate general requirements and standards. Specific values and rules for the region are established by representatives of local government.

Under normal environmental conditions, the guard zone of the pressure sewage system in the lateral sides of the sewer is 5 m.

According to the decisions of the city water supply and sewage organizations, in the open territories, street passages, a security zone is established:

near networks not exceeding 600 mm diameter - 5 m from the outer walls of the pipeline or the outermost protruding point of the structure;
near highways exceeding 1000 mm in diameter - 10-25 m from structures or communication pipes, depending on the purpose of the network and ground.

It is forbidden to perform the following works on the territory of the protection zone:

to build temporary or permanent structures;
organize parking for motor vehicles;
arrange landfills;
plant shrubs and trees at a distance of less than three meters from the pipeline;
increase or lower the existing soil level by cutting or padding;
to equip reinforced concrete slabs with temporary or permanent road surface;
use impact mechanisms near the network sewerage system (possibility of use - at a distance of 15 m);
block free access to sewerage facilities, wells, nets;
lay the underground at a distance of less than 20 m from the existing sewer collectors.

Duties of the manufacturer of works

Working sewer systems are a guarantee of good life support for urban citizens, therefore, when carrying out work on the site of the protection zone, the organizer of these works is obliged:

adhere to strict observance of rules and norms;
to ensure the safety and integrity of sewerage facilities in the zone of works performed by their actions;
in case of discrepancies in kind with the analysis that the water and sewer organizations provided, take precautions and suspend the work until a subsequent decision;
timely remove snow, ice, garbage to ensure a free access to sewage facilities;
when the object is handed over, invite a representative of the authority that issued the permit to the commission.

These measures concern manufacturers of works that operate in open territories.

The size of the guard zone

As we described above, according to SNIP, the security zone under ordinary conditions is equal to a 5-meter mark from the side walls sewer pipes.

This value is applicable for a self-flow and pressure drainage system. In addition, the size of the protection zone is affected by special environmental conditions.

These include:

high seismic risk of the site;
low average annual temperature regime of a certain region;
high humidity or weakness of the ground.

Usually, local authorities apply in this case an increase in the five-meter value.

The storm water protection zone is installed in a similar manner. For information: storm sewer is designed to receive conditionally clean industrial and atmospheric wastewater that does not require cleaning before discharge.

If we judge the damage to the storm sewer, then it can lead not only to the incorrect use of the guard zone, but also technical violations in this type.

Council. So when installing stormwater, and, however, other types of sewage, it is necessary to comply with existing requirements and specifications. As with any work, some deviations and defects are possible, but their size should not affect the operational characteristics of the sewage system.

Preservation of water protection zones

With the moments of ensuring the safety of sewerage networks of urban type, we sorted it out.

In order to prevent damage to water protection zones, the SNIP norms stipulate that the sewage system in the water protection zone should be located in such a way:

from the edge of river waters at a distance of 250 m;
from the lake shores - 100 m;
from groundwater50 m.

The requirements for mutual placement of drainage and water supply networks are also defined:

distance 10 m for water supply networks, the diameter of which does not exceed 1000 mm;
distance 20 m for water pipes with a large diameter;
the distance is 50 m in the case in wet ground, but their diameter does not matter.

Council. It is better to lay the sewerage in the territory of protected water bodies with a 10% margin of the distance from the required normative indicators.

This is due to the frequent occurrence of non-compliance of the establishment of security zones in kind with a schematic plan for their deployment.

In conclusion, I want to note that the organizers and producers of works should carefully consider the requirements of the SNIP and do not forget about the decisions of local legislators who also refer to general requirements.

When detecting violations, the controlling authorities have to file a complaint with the offenders.

Security zones are regulated by special regulations, regulations and rules for the use of resources. For water intakes, water lines and water pipelines, there are special sections of the SanPiN, which include, among other things, environmental and sanitary and hygienic rules. In particular, the document SanPiN 2.1.4.1110-02 regulates the operation of a water pipe located in the security zone. The prescribed rules have a legal form and apply to all citizens, as well as legal entities.

What is a security zone?

With regard to the water supply, security measures are aimed at implementing a set of measures aimed at minimizing pollution of the resource. This may apply to different types of water networks and canals - including underground, surface and artificial. In this case, there is a classification of zones as belonging to different belts. For example, the first belt covers water intake facilities, water distribution canals and water supply sites. It is designed to prevent risks of deliberate or accidental damage to structures and contamination of directly water. The second and third belt zones are also referred to as constraint sites. These are places where measures are taken to prevent pollution of water sources. At the design stage, sanitary protection zones of water supply sources are prescribed a list of protective measures. As a rule, they are guided by the development and observance of rules aimed at maintaining the optimal chemical and biological status of water supply channels.

Determinants of the protection zone

One of the key factors is the range of contamination spread. It is determined by the following parameters:

Kind of source of water supply (underground or surface).
The level and potential of natural protection against pollution.
The characteristics of pollution are biological, chemical and microbial.
Hydrogeological conditions.

When developing the project and defining the boundaries of a specific zone, specialists take into account also the current water composition and the time required for the process of survival of unwanted microorganisms in it. Chemical processes in the environment serviced by the water supply system are also considered. The security zone is also characterized by temperature indicators, adsorption and physical processes. In a complex, these and other characteristics make it possible to determine the optimal boundaries for a protected area, giving it the status of a belt.

What is a protected water supply?

Despite entering the protected area, the water supply is not an object of the reserve without a practical functional purpose. Technically, it fulfills its primary tasks of water supply to consumers. The purposes of such water supply can be technical, household, industrial and food. The water supply system includes engineering communications, pumping stations, purification, pressure and filtration structures. Depending on the supply source, closed underground tunnels with pipes, surface unclosed trays and tanks for temporary or permanent storage of water can be used. Again, the sanitary protection zones of water supply sources are initially designed taking into account the technical part of the facility's implementation. Design solutions are also calculated for more efficient use of the resource, and the characteristics of the equipment used. Materials used for pipelines, such as steel, asbestos and reinforced concrete, and in some cases also wood.

Types of water pipelines of the protection zone

There are local local and main water pipelines located in the protection zone. As a rule, the ownership of one of these categories is determined by the source's potential in terms of water supply volumes. In accordance with this characteristic, the surrounding arrangement of the territory of the guard zone engineering communications. In addition, pressure and non-pressure water pipes are distinguished. A security zone with first-class communications involves the inclusion of pumping equipment in the infrastructure or the use of local dams. In the case of non-pressure or gravity water pipes, the resource is delivered by gravity. This saves energy, but there are problems with flow regulation.

Protective measures for underground sources

If the object is located in the first guard belt, then the protective measures are oriented mainly to the exclusion of negative impacts on drinking water from hatches, wells and overflow pipelines. The points of water intakes are equipped with means for automatic control of the water composition and equipment that regulates the parameters of the water supply. As for the second and third belts, one of the main tasks is to tampon, detect and, if possible, restore old or misused wells. Also, it is planned to drill new wells, but only in coordination with the sanitary and epidemiological supervision bodies. There are also a number of strict prohibitions that are aimed at chemical and physical protection of the water supply. The security zone in these belts implies a ban on the placement of mineral fertilizers, chemicals and fuels and lubricants.

Protective measures for surface sources

With regard to the first protection belt, there are restrictions on draining transport water, washing, bathing and organizing watering for cattle. It also introduces a ban on other types of water use, which affect its quality composition. In the case of navigable water reservoirs located above the water receivers, buoys with a lighting system are placed. The water area is protected by buoys and warning signs. More stringent measures apply to the second and third belts in which the protected area of the aqueduct is located. The rules, in particular, regulate the allocation of territories for the construction of agricultural, residential and industrial facilities. A complete ban on such projects is not introduced, but in the process of harmonization, the risks of the impact of the activities of future facilities on the characteristics of the protected resource are taken into account. In addition, it is not allowed to withdraw wastewater In the water intake zone, if they do not meet sanitary requirements.

Within the water area, all activities related to the extraction of gravel and sand are prohibited. Depending on the results of the hydrological calculation, a ban on excavation work in the buffer zone of a water pipe working from surface sources may be introduced.

Boundaries of the guard zone

For starters, it is worth noting that different boundaries exist within the zone, depending on the belt. Thus, the first belt can extend to minimum distances from 10 to 30 m in radius, depending on the technological structure. For example, the distance from water tower is not less than 10 m, and filters and regulating tanks work with an indent from the border at a minimum of 30 m. In turn, a sanitary protection strip is formed around the guard zone of the water pipe. How many meters does it make? This depends on the diameter of the water conduit - for example, for a 100-cm size, the spacing will reach 10 m, and a diameter larger than 100 cm will determine the range of the border by 20 m. Again, this is the minimum distance. Depending on other parameters of communications and the conditions of operation of the zone, these indicators may change upwards.

Zone for sanitary band

Within the boundaries of the sanitary strip, construction and economic consumption of water resources are strictly regulated. In this area, sources with dirty water should not initially be located, which can affect the protected water supply channels. Therefore, before the organization of this strip, geodetic surveys are also conducted with analysis of groundwater and soil cover. As well as construction in the protected area of the water supply system, strict limitations are imposed on the construction of new agricultural and industrial facilities. It is also forbidden to organize landfills, filtration and wastewater fields.

Location of effluents in relation to the protection zone

It was already noted that near the guard zones there can be objects of different purposes that do not pollute the sources of water supply. But in this case, inevitably, the regulation of sewage and the operation of the sewer channels of these objects is required. In accordance with the regulations, buildings must be provided with sewage disposal channels to the receivers of local treatment facilities or to the industrial sewage system. Regardless of the way the sewage is eliminated, the relationship between the guard zones of water pipes and sewerage is regulated separately. Dimensions of zones with a radius relative to the source of 30-50 m should not be affected by waste from buildings located in the near territory. If there is no possibility of third-party diversion of sewage with compliance with sanitary and hygienic standards, then facilities should be equipped with watertight receivers of waste.

Requirements for water characteristics in sources

To maintain the optimal water condition in the protected area, a regular analysis of its composition is required. In particular, oily oil films should be absent on the surface of the water. In the case of water intended for drinking or domestic needs, the volume of suspended particles should not be above 0.25 mg per 1 dm 3. Separately, the oxygen content in dissolved form is calculated - not less than 4 mg per 1 dm 3. Methods of visual quality assessment are also applied drinking water. For example, the color of the water column should not appear at 20 cm. Data for similar analyzes are obtained directly from the water pipe. The security zone is subjected to similar studies in accordance with the schedule provided for in the project. Although in the future, depending on the change in conditions of operation of the facility, the regularity of the analyzes may change.

Regulation of laying of pipeline networks

Pipelines for water supply systems usually focus on maintenance of a clean environment with minimal inclusion of foreign elements. Therefore, in the case of compliance with sanitary and hygienic standards, the laying of water pipes is permitted in the first zone of the protected areas. But, again, after a thorough research of sources and consumers, with whom he will have to work.

There are also prohibitive measures that completely exclude the organization of third-party networks within the protected areas. First of all, this concerns the laying of a water main for backbone networks, regardless of the destination. The same rule applies to other communications that interact with purifying, industrial or agricultural facilities.

Conclusion

The rules for the regulation of protective measures in the protected water supply zone are based on the motives for maintaining the purity of the water resource. The above requirements and limitations justify themselves in terms of environmental, health and biological safety of consumers. Therefore, it is quite logical in the protected area of the water pipeline to place construction sites that can contribute to the contamination of the water resource. The same applies to other prohibitive measures. But at the same time, drafters of normative documents are striving to expand the technological possibilities of using protected sources. This is helped by the modernization of the equipment, the introduction of new water regulation systems and modern methods of water treatment.

Any sewage system is a potential hazard to sources of drinking water and the environment. Therefore, there is such a concept, the protection zone of sewage - snip determine the size of the territory and the standards of its designation. It is forbidden to build, plant trees and perform a number of works on the protected area. Let's consider what rules of the equipment of security zones are now accepted in construction.

Surely, many saw the established tablets, which indicate that in this place is a protected area. Such plaques are placed, for example, in places where the electric cable is laid. It is strictly forbidden to conduct unauthorized land works in the zone falling under the action of the established plate.

There are also security zones of water supply and sewerage. They are created to solve two issues:

With the goal of environmental protection.
In order to protect the pipelines from damage.

The general concept of a sewage protection zone

Security zones of sewerage are called the territories that surround the structures of sewer networks. Within the sewerage areas, the following actions should be avoided:

Planting trees;
Trenching trenches and pits;
Storing of firewood or any other materials;
The arrangement of landfills.
Planning the construction of some buildings, piling or blasting.
Carrying out works that raise or lower the level of soil, that is, the production of slices of soil or its subsoil.
The device of a road covering from ferro-concrete plates, even if this road of time appointment.
The production of any actions, as a result of which the passage to the sewerage network will be blocked.

As a rule, the boundaries of protected areas are prescribed in a decree issued by the Ministry of the Environment. Accurate information on the size of security zones can be obtained from local water utilities.

What is the danger of non-compliance?

It must be said that cases of damage to the sewerage pipeline due to land works are not so rare. They happen even more often than damage to water pipes or power cables.

Accidental accidents are due to the fact that the manufacturer simply does not know that the pipeline is passing through here. It's a matter of some inconsistency of laws. So, for example, when laying power transmission lines or constructing a water pipe, the operating organization must set warning signs.

But the obligatory installation of a sign warning that there is a sewage protection zone here is not legally regulated. That is, the clear indication that the owners of sewage networks, should designate the location of the guard zone signs, the law does not.

Thus, if as a result of some work the sewage pipeline was damaged, then the responsibility will be borne by:

In the absence of a warning sign, the operating organization.
If the sign was present, but was ignored, then the responsibility rests with the manufacturer of the work.

For the damage to the sewage network, the culprit is administratively responsible. If the accident caused damage to the environment, then the measure of responsibility will be different.

Advice! Before carrying out land or other potentially hazardous work for the pipeline, it is necessary to study the terrain. Information on the location of sewerage protection zones can be obtained from the organization that manages the water and sewage networks.

Sewerage Sewerage Sizes

The regulatory requirements for the size of security zones need to be known not only to the producers of work. Today, quite often, homeowners construct their own local sewerage systems, while observing the norms and parameters that are regulated by SNiPs.

Advice! Documents that regulate the rules for the installation of sewage systems:

SNiP 40-03-99;

SNiP 3.05.04-85;

SNiP 2.05.06-86.

However, one should know that only general requirements are set by SNiPs, while the exact size is set by local authorities. Under normal conditions, the guard zone of gravity and pressure sewerage is 5 meters on either side of the pipe. The measurement is made from the side wall of the pipeline.

There are also special conditions that can affect the size of the security zones, such conditions include:

High seismic hazard;
Extremely low temperatures in winter;
Weak or excessively moist soils.

In such difficult conditions, the guard zone is doubled and is 10 meters in each direction from the side walls of the pipe. Similarly, a storm water protection zone is installed.

Rules for the location of sewerage in relation to water sources

Since damage to sewerage systems poses a serious threat to the environment, there are strict rules for placing the sewage pipeline in relation to water sources.
Pipeline sewage should be located at a distance:

Not less than 250 meters from the river.
Not less than 100 meters from the lake.
Not less than 50 meters from underground sources.
At least 10 meters from the water supply pipeline, provided that the pipe diameter is less than a meter. If the diameter of the pipe is more, then the distance should be at least 20 meters.
If the water pipe is located in permeable or heavily humid soils, the distance to the sewage pipes should be at least 50 meters, regardless of the size of the pipe.

Important nuances

A careful study of the requirements of SNiP is important, both for those developers who are involved in laying the sewage system, and for those who plan to carry out some work in the protected area. However, when studying SNiPs, one should not forget about the requirements of local legislation.

Of course, when it was approved, the same SNiPs were taken as a basis, however, some nuances are possible, non-observance of which can lead to trouble for the developer. Developers should take into account the fact that in the priority of legal proceedings will still be local legislative acts.

If according to the plan the sewage piping will pass near any buildings, the laying should be carried out at a distance from their basement, provided for health standards. Reduction of this distance is possible only with the written consent of the owner of the building to carry out the work.

Security zones of water supply system

The security zone of the water pipe is constructed in order to protect the source of drinking water from possible contamination. Therefore, when constructing a water pipe, measures are taken to avoid situations that could lead to a deterioration in the quality of the supplied water.

Belts of water protection zone

Sanitary zone of the water supply consists of three belts. The project of the zone should be coordinated with the sanitary-epidemiological service, Vodokanal enterprise and other interested organizations.

The first belt of the guard zone rearranges a circle with a center at the point of water intake and has a radius of 30-50 meters. If there are several sources, then, it is necessary to allocate several security zones.

Advice! If it is necessary to reduce the radius of the first guard belt, it is necessary to apply to the sanitary-epidemiological control service, since this issue is within the competence of this body.

The width of the guard zone along the pipelines through which water is transported is determined depending on the type of soil.

If the pipeline is laid in dry grounds, the width of the guard zone is 10 meters in each direction if the pipe diameter does not reach 1000 mm and 20 meters in each direction if a larger pipeline is being constructed.
When constructing a water pipe in wet ground, the size of the guard zone is 50 meters in each direction, regardless of the diameter of the used pipe.

Advice! In the event that the water pipeline passes through already built-up areas, it is allowed to reduce the territory of sanitary zones after agreeing with the SES services.

What should not be in the sanitary zone of the aqueduct?

In the sanitary protection zone there should not be:

Harvesters, manure storages, garbage receptors and other sources of potential water pollution.
Water canals are prohibited to be carried out on the territory of landfills, fields of filtration of sewage drains, irrigated agricultural fields, cattle cemeteries and cemeteries.

So, the security zone of the water supply and sewerage system is the territory allocated for the protection of pipelines from damage during land works. In addition, the sanitary zone of the water supply serves to protect the source of water supply from pollution, and the sewage protection zone is necessary to prevent soil contamination with sewage.

Forbidden zone - this inscription on the plate met, perhaps, everyone. But not everyone knows that such a territory is not only private property and nature protection zones, but also the area around the canal. And the point here is not that the work carried out here can harm communications. The security zone of the canalization is necessary first of all in order not to harm the health of a person and not to damage the environment. This is exactly what will be discussed in this article.

Any sewage carry a potential danger to the environment and human health. This is due to impurities, which contain a large number of pathogens and microorganisms. To minimize these risks, around any facility associated with sewage system , a protected area should be allocated.

In such territories, according to current rules and regulations , certain actions should be limited. For example, in a protected area it is forbidden:

Plant trees and other large green plantations.
To conduct excavations (dig holes and trenches). Of course, this rule does not apply to the organization's sewerage services.
You can not arrange warehouses and store any values (building materials, fuel, and even more food).
It is not allowed to build any structures, especially residential buildings.
It is impossible to carry out any work with the use of impact mechanisms, closer than 15 m from sewage facilities.
It is forbidden to change the level of the ground, the construction of dams, embankments, roads, etc. There are rules according to which it is forbidden to lay a subway at a distance of more than 20 m from the operating sewer. Of course, this applies only to large cities, but this requirement indicates the importance for the environment and human health of maintaining the integrity of sewage pipelines.
Also, you can not build anything that might interfere with access to the communications of service companies.

Note! The decision to divert the territory to a protected area is taken by the representative of the relevant authorities. The decision should be communicated through a special resolution. The size and location of such areas can be obtained from local organizations that carry out maintenance of sewerage communications.

The sizes of such areas depend on various factors. Among them are the depth of the laying and the dimensions of the sewage pipes, the features of the terrain and the purpose of communications (domestic or industrial sewerage).

Under the current legislation, organizations that lay underground power lines or a water supply system should designate protection zones. But this rule does not apply to sewage pipelines . As a result of such non-mating the cases of breakthrough of such communications as a result of carrying out of ground works are much more than in the case of electric lines and water supply.

But there will be no less problems with such a breakthrough. And then it's not even that the organization operating the sewer system will have to spend resources on repairs. The breakthrough of such pipelines threatens to cause great damage to the environment, and, consequently, to the health of people.

Since the installation of a sign about the sewage protection zone is not mandatory, the responsibility for damage to communications will be:

The organization that services the sewage system, in the absence of a sign.
The organization that conducted the work, if the sign was installed and ignored. The same goes for private individuals.

Note! According to the current rules, for violations of the requirements prescribed by the protected zone of the sewage system, the perpetrator bears administrative responsibility. But do not think that if you damage the sewer pipe, you face only a fine. If the spillage of sewage drains has brought great harm to the environment, then the punishment will be much stricter.

If you decide to conduct any construction or excavation work, it is better to ask in advance from the sewers of organizations that there are no protected areas in the workplace. You will spend some time "searching for the truth", but you will save yourself from possible large material losses in the form of a fine and compensation for damage.

Sewage system ensures normal life activity settlement. In addition, such communications are potentially dangerous to the health of citizens and the state of the environment. In this regard, when working in a protected area, the following requirements must be met:

strictly comply with all requirements prescribed in the current regulations and rules;
when performing any work (allowed by the operating company) in the protected area, ensure all measures to maintain the integrity and safety of sewage pipelines and systems;
to monitor the safety of all elements of communications;
provide a free access to the sewer pipe (remove snow, debris, etc.).

Note! If any work is needed in the protected sewerage area, you need to obtain a permit. The approval takes place in the operating company. After completion of all required work, a special commission is invited. She inspects the security zone and gives permission for the delivery of the work performed.

Dimensions of the protected area

In order not to violate the existing legislation and not conduct work or construction in a protected sewerage area, it is worthwhile to know exactly their size. Such information will be useful not only to organizations, but also to individuals.

Note! Many owners of country houses do on their plots autonomous sewerage systems . According to SNIP (construction norms and rules) and these facilities are subject to the requirements for the protected area. If your neighbor has made an autonomous system, then you can not build a construction near it.

And what are the sizes of such zones? According to the current norms for the pressure sewage system, the protected area must be at least 5 m from each side of the side walls of the pipeline. The same rules apply to gravity systems.

But these requirements of SNIP apply to normal conditions. In some cases, the distance from the pipeline to the end of the protected area can be changed:

If the ambient air temperature or soil in the region is below the normative values (this applies to the northern regions of our country).
There is an increased risk of seismic activity. In this case, the zone increases. In the case of earthquakes, there is a high likelihood of a pipeline rupture and the entry of sewage into the environment.
If the soil is weak or strongly moisturized. In sandy soils or in marshy areas, the breakthrough of sewerage communications can do more harm, as drains can penetrate deeper and farther from the pipe.

As a rule, if one of these conditions is met according to the characteristics of the terrain, then the protected area is increased by 2 times. In such regions, you can not do anything within 10 m on either side of the walls of the sewer pipe. But in each specific case it is better to learn more precisely from local authorities and pipeline operators.

Note! Precisely such rules apply to the storm drainage system. Despite the fact that such systems are designed to collect conditionally clean run-off from atmospheric precipitation, the norms for them are prescribed the same. The security zone must be at least 5 m on each side of the pipeline.
In addition, the laying of the sewerage system must meet the standards related to water protection zones. Since impurities can cause great harm to the environment, and primarily biological life and the purity of water bodies, it is not allowed to place them near water-protected areas. So, according to the current building codes and regulations, the following distances must be observed:

from sources of groundwater (well, well, etc.) - not less than 50 m;

from the shore of a lake, pond or other non-current water body - not less than 100 m;

from the edge of the water of rivers and streams - at least 250 m.

In addition, it is necessary to pay special attention to the laying of water supply systems in the vicinity of sewerage communications. According to existing regulations, in this case it is necessary to observe certain distances. So, if the cross-section of a pipe of the water supply system does not exceed 1 m, then they can be laid no closer than 10 m from the sewerage lines. In this case it is necessary to take into account the features of the soil.

Note! If the soil is moist or weak, the distance between the water supply and sewerage systems should not be less than 50 m, regardless of the diameter of the pipes used.

When laying a sewer system (including an autonomous, maintenance a private house) in the protection zone of water bodies, it is better to take existing standards with a margin. For example, to retreat from the shore of the lake is not 100 m, but 110. The fact is that very often there are discrepancies between the marking of protected zones of water bodies in kind and their schematic layout.

Video

About the secrets of laying sewer pipes you can find out if you watch the video: