Methodology for developing standards for permissible discharges of substances into water bodies. Methodology for developing standards for permissible discharges of substances into water bodies Order 333 on approval of the methodology for developing standards

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MINISTRY OF NATURAL RESOURCES OF THE RUSSIAN FEDERATION

On approval of the Methodology for developing standards permissible discharges substances and microorganisms in water bodies for water users

In accordance with paragraph 2 of the Government Decree Russian Federation dated July 23, 2007 No. 469 “On the procedure for approving standards for permissible discharges of substances and microorganisms into water bodies for water users” (Collected Legislation of the Russian Federation, 2007, No. 31, Art. 4088) orders:

approve, in agreement with the State Committee of the Russian Federation for Fisheries, the Ministry of Health and Social Development of the Russian Federation, the Federal Service for Hydrometeorology and Environmental Monitoring and the Federal Service for Environmental, Technological and Nuclear Supervision, the attached methodology for developing standards for permissible discharges of substances and microorganisms into water bodies for water users.

Minister Yu.P. Trutnev

Approved by order of the Ministry of Natural Resources of Russia dated December 17, 2007 No. 333

Methodology for developing standards for permissible discharges of substances and microorganisms into water bodies for water users

I. Purpose and scope

1. In accordance with Article 1 of the Federal Law of January 10, 2002 No. 7-FZ “On Environmental Protection” (Collected Legislation of the Russian Federation, 2002, No. 2, Art. 133; 2004, No. 35, Art. 3607; 2005, No. 1, Article 25; No. 19, Article 1752; 2006, No. 1, Article 10; No. 52, Article 5498) standards for permissible discharges of substances, including radioactive, other substances and microorganisms (standards for permissible discharges substances and microorganisms) – standards that are established for subjects of economic and other activities in accordance with mass indicators chemical substances, including radioactive and other substances and microorganisms that are permissible for release into the environment from stationary, mobile and other sources in the established mode and taking into account technological standards, and in compliance with which environmental quality standards are ensured.

The methodology for developing standards for permissible discharges of substances and microorganisms into water bodies for water users (VAT) does not provide for the development of standards for permissible discharges for radioactive substances.

VAT values are determined based on the water quality standards of the water body. If water quality standards in water bodies cannot be achieved due to the influence of natural factors that cannot be regulated, then the VAT values are determined based on the conditions of compliance at the control point with the formed natural background water quality.

The calculated value of the permissible discharge standard is closely related to the numerical value of the water quality standard for water bodies.

Water quality standards are developed for the conditions of drinking, domestic and fishing water use, determined in accordance with current legislation.

3. Water quality standards for a water body include:

general requirements for the composition and properties of surface waters for various types water use;

a list of maximum permissible concentrations (MAC) of substances in the water of water bodies for drinking and domestic water use;

list of maximum permissible concentrations of substances for water bodies of fishery importance.

The calculated value of the permissible discharge standard is closely related to the numerical value of the water quality standard for water bodies.

Water quality standards are developed for the conditions of drinking, domestic and fishing water use, determined in accordance with current legislation.

3. Water quality standards for a water body include:

general requirements for the composition and properties of surface water for various types of water use;
a list of maximum permissible concentrations (MAC) of substances in the water of water bodies for drinking and domestic water use;
list of maximum permissible concentrations of substances for water bodies of fishery importance.

4. When discharging wastewater or other types of economic activity that affect the condition of water bodies used for drinking and domestic purposes, water quality standards or their natural composition and properties are maintained on watercourses, starting from a site located 1 km above the nearest along the water use point (water intake for drinking and domestic water supply, places for swimming, organized recreation, the territory of a populated area, etc., right up to the water use point itself), and on reservoirs - in the water area within a radius of 1 km from the water use point.

In reservoirs and in the downstream of a hydroelectric power plant dam operating in a sharply variable mode, the possibility of impact on water use points by reverse flow during a sharp change in the operating mode of the power plant or termination of its operation is taken into account.

5. When discharging wastewater or other types of economic activity that affect the state of water bodies of fishery importance, the quality standards of surface waters or their natural composition and properties (in the event of a natural excess of these standards) are observed throughout the entire water use area, starting from the control point ( control point - a cross-section of a water flow in which water quality is monitored), but no further than 500 m from the place of wastewater discharge or the location of other sources of surface water pollution (mining sites, work on a water body, etc.) .

6. In the case of simultaneous use of a water body or its section for various needs, the most stringent water quality standards among those established are adopted for the composition and properties of its waters.

7. For substances belonging to the 1st and 2nd hazard classes for all types of water use, VAT is determined so that for substances with the same limiting sign of harm (LHS) contained in the water of a water body, the sum of the ratios of the concentrations of each substance to the corresponding MPC did not exceed 1.

8. For wastewater discharges within the boundaries of a populated area, VAT is determined based on the attribution of regulatory requirements for the composition and properties of water from water bodies to the wastewater itself.

9. If the background pollution of a water body according to some indicators does not allow the standard water quality to be ensured at the control point, then VAT for these indicators is developed based on the attribution of regulatory requirements for the composition and properties of water in water bodies to the wastewater itself.

For those substances for which the increment to the natural background is normalized, VAT is determined taking into account these permissible increments to the natural background quality of water.

Among the natural factors that shape water quality, factors that are not included in the economic link of the water cycle, including return water of all types (waste, waste and drainage), are considered.

10. When discharging heat exchange water from thermal power plants, nuclear power plants and other similar facilities, VAT is developed at the level of concentrations of standardized substances in the water of a water body at the point of water intake (subject to water use by one water body) or compliance in wastewater with water quality standards for the type of water use established in the considered water body area of the water body - wastewater receiver.

11. Initial information for developing a VAT project can be obtained from the territorial bodies of Roshydromet or accepted according to data from organizations licensed to perform work related to obtaining the required data.

12. VAT values are developed and approved for existing and planned water user organizations (Appendices 1, 2). The development of VAT values is carried out both by the water user organization and, on its behalf, by a design or research organization. If the actual discharge of the operating water user organization is less than the calculated VAT, then the actual discharge is accepted as VAT.

The VAT values of water user organizations designed and under construction (reconstruction) are determined as part of the construction (reconstruction) projects of these organizations. If, upon review or clarification of the previously established VAT, it turns out that the design value of the discharge of a water user organization under construction (reconstruction) is less than the calculated VAT, then the design value of the discharge is accepted as VAT.

13. When developing the VAT, the recalculation of the mass of a substance discharged per hour (g/hour) by the mass of a substance discharged per month (t/month) is made by multiplying the permissible concentrations of the substance by the volume of wastewater for the corresponding period (Appendix 1).

14. VAT is developed for five years. Revision and clarification of VAT is carried out before their expiration, in the following cases:

when there is a change of more than 20% in the indicators that determine the water management situation in a water body (the appearance of new and changes in the parameters of existing wastewater discharges and water intakes, changes in the calculated flow rates of the watercourse, background concentration, etc.);

when production technology, wastewater treatment methods, discharge parameters change;

when approving, in accordance with the established procedure, standards for permissible impact on water bodies.

15. Revision and clarification of previously approved VAT can be carried out both simultaneously for the totality of water users located in the basin of a water body within the water management area, and individually, for each individual water user (individual output).

16. When discharging wastewater into internal sea waters and the territorial sea of the Russian Federation, VAT is calculated taking into account the degree of mixing and dilution of wastewater with sea water, subject to compliance with the requirements and standards of the established type of water use.

17. Criteria for the effectiveness of disinfection of wastewater discharged into water bodies and permissible changes in the composition of water in reservoirs and watercourses after the release of treated wastewater into them are given in Appendix 3.

18. In accordance with the state. 44, 60 of the Water Code of the Russian Federation dated June 3, 2006 No. 74-FZ (Collection of Legislation of the Russian Federation, 2006, No. 23, Art. 2381; No. 50, Art. 5279; 2007, No. 26, Art. 3075) the discharge of wastewater is prohibited and/or drainage water into water bodies:

Classified as specially protected water bodies.

It is prohibited to discharge waste and/or drainage water into water bodies located within the boundaries of:

Zones, districts of sanitary protection of sources of drinking and domestic water supply;

The first and second zones of sanitary (mountain sanitary) protection districts of medical and recreational areas and resorts;

Fishery protection zones, fishery protected areas.

When operating the water management system, it is prohibited:

1) discharge into water bodies wastewater that has not undergone sanitary treatment, neutralization (based on the inadmissibility of exceeding the standards for permissible impact on water bodies and standards for maximum permissible concentrations of harmful substances in water bodies), as well as wastewater that does not meet the requirements of technical regulations;

2) withdraw (withdraw) water resources from a water body in an amount that has a negative impact on the water body;

3) discharge into water bodies wastewater that contains pathogens of infectious diseases, as well as harmful substances for which standards for maximum permissible concentrations have not been established.

19. The list of regulated substances is formed on the basis of initial information about the use of substances at a specific enterprise and analysis of data on the quality of source and waste water. The actual content of pollutants in wastewater is determined as the arithmetic mean concentration for the year.

II. Methodological basis for calculating permissible discharge standards

20. VAT is developed in accordance with the standards for permissible impacts on water bodies (NAI). The development of VAT for the design water management area is given in section IV for watercourses, section VI for reservoirs and lakes, and section VIII for internal sea waters and the territorial sea of the Russian Federation.

21. When calculating VAT for a water management area, VAT values are established taking into account maximum permissible concentrations (MAC) of substances in places of water use, the assimilative capacity of a water body and the optimal distribution of the mass of discharged substances between water users discharging wastewater. The assimilative capacity of a water body is the ability of a water body take a certain mass of substances per unit of time without violating water quality standards at a controlled site or point of water use.

Due to the complexity of implementing VAT calculations for a set of water user organizations, it is possible to use application software packages that provide VAT calculations.

When calculating VAT for water users located within the water management area, the following conditions must be met:

∑ VAT + ∑Lim ≥ 0.8 NDVkhimupr, (1)

where ∑ VAT is the sum of permissible discharge standards for wastewater outlets located within the design water management area, t/year;

∑Lim – the sum of limits on the discharge of pollutants with wastewater for wastewater outlets located within the design water management area, t/year;

0.8 NDVkhimupr – 80% of the permissible impact standard for the introduction of a chemical substance for water users with controllable and potentially controllable sources of pollution, t/year.

The remaining 20% of NDVkhimupr is used taking into account the prospects for the development of the territory and the emergence of new wastewater outlets.

Upon reaching:

∑ VAT + ∑Lim = NDVkhimupr (2)

Permissible discharge standards are recalculated according to the above principle. VAT recalculation is primarily carried out by reducing the limits on the discharge of pollutants with wastewater.

22. In the absence of duly approved VAT, VAT values are calculated for individual water users.

23. If, when calculating the VAT value, there is no reliable information on the quality of water upstream of the discharge, then the background concentrations of chemical substances are calculated in the prescribed manner. Before establishing background concentrations, it is necessary to comply with regulatory requirements for the composition and properties of wastewater, ensuring compliance with the requirements for the quality of water in a water body.

24. When calculating VAT, it is necessary to take into account the technical and economic characteristics of production, treatment systems, as well as recycling or reuse of water for each specific organization.

III. Calculation of VAT values for individual wastewater discharges into watercourses

25. VAT values are determined for all categories of water users as the product of the maximum hourly wastewater flow - ( m 3 / h) to the permissible concentration of the pollutant SNDs ( g/m 3). When calculating the conditions for wastewater discharge, the SND value is first determined, ensuring the standard water quality at control sites, taking into account the requirements of the Methodology, and then the VAT is determined according to the formula:

VAT =q SND (3)

It is necessary to emphasize the mandatory requirement to link the discharge of the mass of a substance corresponding to the VAT with the wastewater flow. For example, a decrease in flow rate while maintaining the VAT value will lead to a concentration of the substance in a water body exceeding the MPC.

If the background concentration of a pollutant in a water body exceeds the MPC, then the SND is determined in accordance with paragraph 1 of this Methodology. Otherwise, to determine SND depending on the type of water body, the calculation formulas given in section are used. III.

Background concentration of a chemical substance is the calculated value of the concentration of a chemical substance in a specific section of a water body located above one or more controlled sources of this substance, under unfavorable conditions caused by both natural and anthropogenic factors of influence.

26. The basic calculation formula for determining SND without taking into account the non-conservative nature of the substance has the form:

Snds=n(S mpc - S f)+S f (4)

where: MPC is the maximum permissible concentration of a pollutant in the water of a stream, g/m 3;

C f - background concentration of the pollutant in the watercourse ( g/m 3) higher than wastewater discharge, determined in accordance with current methodological documents for calculating background concentrations of chemicals in water streams;

n is the factor of the total dilution of wastewater in a watercourse, equal to the product of the factor of the initial dilution by the factor of the main dilution (the main dilution that occurs when water moves from the point of release to the design site)

n=n n * n o (5)

Taking into account the non-conservative nature of the pollutant, the calculation formula has the form:

Snds= n(S vat e kt -S f)+S f (6)

where: k is the coefficient of non-conservativeness of organic substances, showing the rate of oxygen consumption, depending on the nature of organic substances, 1/day;

t is the travel time from the wastewater discharge site to the design site, days.

The values of the non-conservative coefficient are taken from field observations or reference data and are recalculated depending on the temperature and flow speed of the river water.

When establishing VAT on BOD, the calculation formula is:

Snds= n((Cpdk -S cm)e k 0 t -S f)+S f (7)

where: k0 - averaged value of the coefficient of non-conservativeness of organic substances causing background and wastewater, 1/day;

Ccm - total BOD - caused by metabolites and organic substances washed into the watercourse by precipitation from the catchment area on the last section of the route before the control point with a length of 0.5 daily run.

The value is taken equal to: for mountain rivers – 0.6 0.8 g/m 3; for lowland rivers flowing through an area whose soil is not too rich in organic matter - 1.7 2 g/m 3; for rivers fed by swamps or flowing through the territory from which an increased amount of organic matter is washed away – 2.3 2.5 g/m 3. If the distance from the wastewater outlet to the control point is less than 0.5 daily mileage, then it is taken equal to zero.

Determination of the permissible discharge standard for the concentration of suspended substances. Permissible concentration of suspended solids m, in wastewater discharged into a reservoir is determined by the equation (in accordance with sanitary rules):

γQb+qm=(γQ+q)(b+q) (8)

m=p(γQ/q+1)=b (9)

where γ is the mixing coefficient determined by formula (22);

Q, q – flow rates of river and waste water, respectively, m 3 /day.

When establishing VAT on BOD, taking into account the requirements for the content of dissolved oxygen, it is recommended to use the formulas given in the designer's handbook (Sewerage of populated areas and industrial enterprises).

Permissible change in water temperature of a water body after the release of treated wastewater into it.

For water bodies for drinking and domestic purposes, the summer water temperature as a result of wastewater discharge should not increase by more than 3°C compared to the average monthly water temperature of the hottest month of the year over the past 10 years.

For water bodies for fishery purposes, the water temperature should not increase compared to the natural temperature of the water body by more than 5°C with a general increase in temperature of no more than 20°C in summer and 5°C in winter for water bodies where cold-water fish (salmon) live and whitefish), and no more than 28°C in summer and 8°C in winter. In burbot spawning areas, it is prohibited to increase the water temperature in winter to more than 2°C.

IV. Calculation of VAT values for a water management section of a watercourse

30. The calculation of VAT values for a water management area is determined from the solution of a mathematical programming problem.

31. To form a model of a water body, the watercourse is divided into sections with a constant flow rate, within which all parameters of the model can be taken as constant, the boundaries of the sections are combined with places of wastewater discharge, water intakes, mouths of tributaries, sections in which water quality is controlled, and places of abrupt changes in the hydrometric characteristics of the watercourse. If the place of water intake coincides with the place of wastewater discharge or the mouth of a tributary, a separate section of zero length is introduced for this water intake. For each tributary and main river, in addition to the water quality control points, it is necessary to indicate the design point at the mouth and the initial point, and the water quality at the source of the river. All sections are numbered sequentially from source to mouth for each tributary and main river. The calculation sections are numbered similarly.

33. The model of a water body according to formulas (30) - (35) assumes complete and instantaneous mixing of river and wastewater and is intended for calculating water protection measures for the future, when taking into account the degree of mixing of river and wastewater is difficult due to the lack of initial data.

When making calculations for the near future, as well as if the necessary data is available for long-term calculations, to take into account the degree of mixing of river and waste water, the method described above by V. A. Frolov - I. D. Rodziller or other simplified methods for calculating dilution can be used (see paragraph 29).

V. Calculation of VAT for individual releases into reservoirs and lakes

39. VAT values for wastewater discharges into reservoirs and lakes are determined using the calculation formulas given below, similar to the formulas in clause 26.

The values of the non-conservative coefficient are taken from field observations or reference data and are recalculated depending on the temperature and flow speed in the reservoir.

The value is taken equal to: for mountain reservoirs – 0.6 0.8 g/m 3; for flat reservoirs located in areas where the soil is not too rich in organic matter - 1.7 2 g/m 3; for reservoirs located in swampy areas or areas from which an increased amount of organic matter is washed away – 2.3 2.5 g/m 3. If the distance from the wastewater outlet to the control point is less than 0.5 daily mileage, then it is taken equal to zero.

When establishing VAT for BOD, taking into account the requirement for dissolved oxygen content, as well as when establishing VAT for suspended solids, it is recommended to use the formulas from Section III.

40. If there are stable wind currents in the reservoir, the M.A. method can be used to calculate the total dilution factor. Ruffel. In calculations using this method, two cases are considered:

a) release into the shallow part or into the upper third of the depth of the reservoir, the contaminated stream spreads along the shore under the influence of a direct surface current, which has the same direction as the wind;

b) release into the lower third of the depth of the reservoir, the polluted stream spreads to the shoreline against the release under the influence of the bottom compensatory current, which has a direction opposite to the direction of the wind.

Method M.A. Ruffel has the following limitations: the depth of the mixing zone does not exceed 10 m, the distance from the outlet to the control point along the shore in the first case does not exceed 20 km, the distance from the wastewater outlet to the shore opposite the outlet head in the second case does not exceed 0.5 km.

41. If the conditions for the applicability of the M.A. method are not met. Ruffel, then the calculation of the initial dilution factor is carried out according to clause 27. The calculation of the main dilution factor can be performed using the numerical method of A.V. Karausheva.

42. If wind currents in a reservoir have a regularly alternating direction, or the shores of the reservoirs have a turbulent line, and the discharge is carried out into the flood or headland, or in winter after freeze-up there are no wind currents, then the methods described above are not applicable. In these cases, it is necessary to develop, with the participation of specialized research organizations, calculation methods focused on solving specific problems.

VI. Calculation of VAT values for a set of releases into reservoirs and lakes located within the water management area

43. The totality of wastewater outlets for a reservoir consists of outlets whose wastewater is discharged directly into the reservoir.

44. Rivers flowing into a reservoir should be considered as coastal wastewater discharges. In this case, the concentrations of substances at river mouths are determined in advance or described by an equation of the form (30).

45. VAT for all outputs from the population under consideration is determined from the solution of a mathematical programming problem. The optimality criterion is the minimum total reduced costs to achieve VAT of the form (29):

49. The matrix describes the internal cycle of nutrients in a water body. Since for reservoirs the time of water exchange, as a rule, exceeds the characteristic time of circulation of nutrients in the specified cycle, the group of indicators modeled in it - ammonium nitrogen, nitrite nitrogen and nitrate nitrogen should only be calculated jointly. An isolated calculation of these indicators or a calculation for an incomplete group can lead to a significant underestimation of the calculated concentrations and, consequently, to the establishment of insufficiently stringent VAT.

52. The dilution factor is determined by formula (3) as the product of the initial dilution factor and the main dilution factor. The values are determined by formulas (47) (48) or, if the conditions of applicability of the method of M. A. Ruffel are not met - according to clause 27. The values are determined by formulas (53) - (59) or by the numerical method of A. V. Karaushev.

53. The model of a set of water protection measures when calculating the SAT of substances into water bodies completely coincides with the previously described model (37) - (39) of a set of water protection measures for the case of calculating the SAT of substances into watercourses.

54. As a result of solving the optimization problem (29), (60), (61), (34) - (39), the optimal shares of wastewater consumption passing through various technological routes of treatment and use are determined. After this, formulas (41) - (43) are used to determine the flow rates of discharged wastewater - , concentrations of substances in wastewater - and the VAT of substances at wastewater outlets - VATi, i=1,…..,N.

VII. Calculation of VAT for individual releases into internal sea waters and the territorial sea of the Russian Federation

55. Calculation of the VAT of substances for wastewater discharges into the sea is carried out in cases where the discharge of wastewater into the marine environment is allowed, and the VAT values are determined in accordance with clause 25 using the formulas below.

56. An outlet located at a distance of more than 5 km from other outlets along the shoreline can be considered as a separate (isolated) outlet.

58. The total dilution ratio is determined by formula (3) and depends on the hydrological conditions of the area where the wastewater outlet is located and its design characteristics. Therefore, when establishing VAT, the possibility of optimizing the design of the head and the wastewater discharge point should be taken into account to reduce wastewater treatment costs.

59. Known techniques Determining the initial dilution factor makes it possible to calculate its value regardless of the type of outlet (concentrated or scattering), since the design of the outlets ensures that there is no mutual influence of wastewater jets in the initial dilution zone.

63. If there is a stable stratification of the marine environment by density, models that describe the behavior of the jet in a stratified environment can be used to calculate the initial dilution factor.

64. In any case, if the calculated factor of the initial dilution turns out to be less than 1, then it should be accepted for further calculations.

65. Basic dilution factor calculations are based on solving the turbulent diffusion equation and can be performed numerically or analytically.

68. Calculation of the main dilution factor for outlets of complex configuration, for example, U-shaped, or with a flow direction at an arbitrary angle to the axis of the outlet head, is discussed in detail in the recommendations for calculating dispersive wastewater outlets into rivers and reservoirs.

VIII. Calculation of VAT for a set of releases into internal sea waters located within the design water management area and into the territorial sea of the Russian Federation

69. A set of wastewater outlets can be considered outlets located at a distance of no more than 5 km from each other along the coastline. Taking into account specific hydrological conditions and flow rates of discharged wastewater, the need to include a specific outlet in the totality can be clarified based on calculations of their joint impact on water quality at control sites.

70. Rivers flowing into the sea should be considered as coastal wastewater discharges. In this case, the concentrations of substances at river mouths are determined in advance or described by an equation of the form (30), the initial dilution is taken equal to 1 and the length of the initial dilution section is equal to 0.

71. VAT for all outputs from the population under consideration is determined from the solution of a mathematical programming problem.

74. Model of a set of water protection measures when calculating the VAT of substances in coastal zones seas completely coincides with the previously described model [(37) - (39)] of a set of water protection measures for the case of calculating the SSS of substances in watercourses.

75. As a result of solving the optimization problem [(29), (88), (36) - (39)], the optimal shares of wastewater flow passing through various technological routes for treatment and use are determined. After this, formulas (41) - (43) are used to determine the consumption of treated wastewater - , the concentration of substances in wastewater - Sndsi and the VAT of substances at wastewater outlets - VATi, i=1,.....N.

IX. Design conditions

76. Calculation conditions for determining the VAT of substances and water protection measures implementing them include:

hydrographic and morphometric characteristics of rivers, calculated hydrological, hydraulic and hydrochemical characteristics of river flow in control and calculated (background, mouth, etc.) sections, self-purification characteristics of rivers in the basin;

calculated quantitative and qualitative characteristics of the main components of river flow formed in areas between sections adjacent to the flow: underground recharge (flow) of rivers, surface runoff from industrial and residential (built-up), agricultural (arable) and natural (non-arable) catchment areas;

specified or calculated values of the characteristics of water intakes, flow rates and composition of discharged wastewater, drawdown of reservoirs, flow transfer, pumping of groundwater, etc.;

characteristics of the location of water use points and other economic impacts on runoff along the hydrographic network, water users’ requirements for water quality;

77. Basic requirements when choosing design conditions:

design conditions should be assigned based on the requirements of water users for the state of rivers (flow rates, water quality and their regime) at control sites or in areas between them;

the calculated characteristics of river flow, its components and economic activities affecting the rivers, due to the asynchrony of their changes, should be considered in combination with time and according to the water availability conditions of the year;

the calculated values of river flow, its components and the influence of economic activities must be balanced along the river flow, which is achieved with maximum detail in their consideration;

the calculated water quality in the background and control sections should be determined for the conditions achievable with the best existing wastewater treatment technologies and the characteristics of the discharged wastewater in order to exclude non-optimal use of the assimilative capacity of rivers due to the absence or unsatisfactory operation of water protection structures;

the limiting design conditions of rivers must correspond to the values of their quantitative and qualitative characteristics combined in time, taking into account the influence of economic activities, which form the limiting values of the assimilative capacity of rivers for individual standardized substances or their groups in the areas between control sections; it is allowed, with proper justification, to determine the limiting design conditions of the rivers of the basin based on the results of calculations for the most unfavorable seasons (winter, summer and, in some cases, autumn) of a low-water year, taking into account, if necessary, consideration of years of higher calculated water content;

the design conditions for the design of a water protection structure must correspond to the most unfavorable values of the forecast characteristics of the river receiving wastewater for the period of operation of this structure.

78. To standardize the procedure for selecting design conditions that form the limiting values of the assimilative capacity of rivers in the basin, it is necessary to apply the following definition of individual characteristics of rivers and economic factors:

a) consumption of withdrawn water and discharged wastewater - maximum hourly for the limiting seasons of the year for the period of validity of the substances developed by the VAT;

b) compositions of discharged wastewater - corresponding to those achievable using the best existing wastewater treatment technologies;

c) river water flows in unregulated (non-flooded) areas - calculated average monthly flows of the year of 95% supply, taking into account the influence of economic activities (it is allowed, with proper justification, to limit the consideration to the calculated minimum average monthly flows for the limiting seasons of the year of 95% supply);

d) river water flows in regulated (flooded) areas - equal to the established guaranteed releases (transfers) of water, taking into account the influence of economic activities (not lower than the calculated minimum average monthly flows for the limiting seasons of the year of 95% supply);

e) background river water quality - calculated for the conditions of the accepted estimated water flows for the limiting seasons of the year, the corresponding calculated characteristics of underground and surface flow, water intakes, hydraulic measures, as well as the flow rates and compositions of wastewater achievable using the best existing wastewater treatment technologies;

e) distances to the targets - along the fairway in kilometers;

g) flow velocities, morphometric characteristics, mixing and non-conservative coefficients - averaged for river sections between sections adjacent along the flow at accepted calculated water flow rates for the limiting seasons of the year; in the absence of data on the values of non-conservative coefficients for the rivers under consideration, their values can be taken from reference literature;

h) surface runoff values - corresponding to the calculated increments of the surface component of river flow in areas between adjacent sections along the flow at the accepted calculated water flow rates for the limiting seasons of the year;

i) values (quantities) of atmospheric precipitation - observed monthly in the catchment areas between adjacent gauging stations, combined in time with the observed average monthly river flows, close to the accepted calculated ones for the limiting seasons of the year;

j) values of surface runoff from built-up areas - calculated taking into account their areas, accepted precipitation values and runoff coefficients;

k) values of surface runoff from agricultural (arable) and natural (non-arable) territories - corresponding to the increments of the surface component of river flow (minus the flow of surface runoff from built-up areas) in areas between sections adjacent along the flow, taking into account the ratios of runoff coefficients from these types of territories and their areas;

l) compositions of surface rain runoff from built-up areas - calculated in rainwater runoff for the period of one-time excess of the calculated rain intensity in the range from 0.05 to 0.1 year;

m) compositions of surface rain runoff from agricultural and natural areas - calculated by season of the year in liquid and solid runoff of maximum rain floods of 25% probability;

n) values of underground flow - corresponding to the calculated increments of the underground component of river flow in areas between adjacent sections along the flow at the accepted calculated water flows for the limiting seasons of the year;

n) drainage flow values - calculated maximum monthly averages for the limiting seasons of the year of 95% supply;

p) concentrations of substances in drainage waters - maximum monthly averages for the limiting seasons of the year at the calculated values of drainage flow.

79. The choice of design conditions for reservoirs is made similarly to those used for rivers, taking into account the specifics of reservoirs.

Specific conditions include:

a) volumes and levels of water in the reservoir - calculated minimum monthly average for the limiting seasons of the year of 95% supply;

b) the values of surface and underground runoff from the catchment area - corresponding to the calculated modules of the runoff components of rivers flowing into the reservoir, or analogous rivers at minimum average monthly water flows for the limiting seasons of the year of 95% supply;

c) the rate of water exchange of the reservoir - calculated for the conditions of years of 95% supply;

d) frequencies and speeds of winds along the coastal and normal directions to the shore, characteristics of the subglacial water flow;

e) time to reach the control point - calculated based on the shortest distance at maximum speed transfer of water masses (taking into account the influence of wind);

f) assimilative capacity of the reservoir - calculated with maximum stratification of water masses, minimum mixing coefficients and coefficients of non-conservativeness of substances for the limiting seasons of the year of 95% supply.

80. The following are accepted as design conditions for coastal sea waters:

a) hydrological and hydrochemical data of the water body for the least favorable period;

b) sanitary indicators of the composition and properties of water during the period of its most intensive use;

c) background concentration of a standardized substance, determined outside the zone of influence of the release (at a distance of more than 5 km from the release) as the arithmetic mean value of the concentration of the standardized substance for the least favorable period;

d) the characteristic minimum speed of the sea current, corresponding to the average monthly 95% probability.

ANNEX 1

Standards for permissible discharges of substances and microorganisms into water bodies,

submitted for approval (with turnover)

Agreed I approve

Federal Service for Hydrometeorology Federal Agency

and environmental monitoring of water resources

(official) (official)

M.P. "" 200g. M.P. "" 200g.

(signature) (signature)

Federal Service for Supervision

in the field of consumer protection and

human well-being

(executive)

M.P. "" 200g.

(signature)

State Committee of the Russian

Fisheries Federation

(executive)

M.P. "" 200g.

(signature)

Federal Environmental Service,

technological and nuclear supervision

(executive)

M.P. "" 200g.

(signature)

Permissible discharge standard(s)

Water user details:

Address:

Purposes of using a water body
Place of waste and (or) drainage water discharge (geographic coordinates)___ _______________________________________________________________________
Wastewater category______________________________________________________________
Approved wastewater flow to establish VAT cm 3 / hour
and microorganisms**.

6.1. Approved standard for permissible discharge of substances into a water body.

(discharge of substances not listed below is prohibited)

Release name:

Name of substances

Hazard Class

Acceptable

concentration

Approved standard for permissible discharge of substances

Approved standard for permissible discharge of substances*

September

* Conversion into t/year is made by summing t/month.

6.2. Approved standard for permissible discharge of microorganisms into a water body.

Release name:

** For the coordination and approval of VAT projects, the following are submitted: an explanatory note containing the hydrological and hydrochemical characteristics of the water body at the site of the existing or projected wastewater outlet, data on the technological processes that result in the generation of wastewater, the composition of treatment facilities, treatment efficiency, compliance of work treatment facilities and design characteristics, data on the quality of water at the control point of the water body after wastewater discharge, the values of background concentrations accepted for calculating VAT, their justification, calculation of VAT.

Approved properties of wastewater:
1. floating impurities (substances) are not allowed
2. color 3) smells, tastes

4) temperature (ºC) 5) reaction (pH) __________________6.5-8.5

6) coli index no more than 1000 7) dissolved oxygen 4-6 mg/dm 3

8) COD9) BOD total.

10) mineralization_______________________________________________________________

Name and address of the organization that developed the VAT draft

Head of the organization

M.P. "" 200 g.

VAT approved ""200 for a period up to ""200.

APPENDIX 2

To the Methodology for developing standards for permissible discharges of substances and microorganisms into water bodies for water users

Sample

Actual discharge of substances and microorganisms

(name of the water body and water management area)

(with turnover)

1.Water user details:

Address:

FULL NAME. and telephone number of the official responsible for water use, his position

2.Purposes of using the water body

3. Place of discharge of waste and (or) drainage water (geographical coordinates) _____________________________________________________

5. Actual wastewater consumption thousand m 3 /yearm 3 /hour

6. Actual discharge of substances and microorganisms (over the previous 5 years).

6.1. The actual discharge of substances into a water body.

Release name:

Name of substances

Hazard Class

Actual concentration

Actual release of substances

September

6.2. The actual discharge of microorganisms into a water body.

Release name:

	Indicators by type of microorganisms	Actual content (CFU/100 ml, PFU/100 ml)	Actual release of microorganisms


2007

2006

iyear

7.Name and address of the organization that developed the VAT draft

Head of the organization

(water user) (signature) Full name

M.P. "" 200 g.

APPENDIX 3

To the Methodology for developing standards for permissible discharges of substances and microorganisms into water bodies for water users

Efficiency criteria for wastewater disinfection,

discharged into water bodies

		Acceptable residual levels
		Wastewater discharged into water bodies
	Indicators


	Total coliform bacteria (CFU/100 ml), no more
	Coliphages (PFU/100 ml for phage M2), no more
	Thermotolerant coliform bacteria (CFU/100 ml), no more
	Fecal streptococci (CFU/100 ml), no more
	Pathogenic microorganisms
	Specific substances resulting from disinfection	Regulated according to requirements sanitary standards and rules

Permissible changes in the composition of water in reservoirs and watercourses after the release of treated wastewater into them

Indicators	Water use goals
	household and drinking needs of the population		communal needs of the population	fisheries needs


Pathogens	Water should not contain pathogens, including viable eggs of helminths (ascaris, whipworm, Toxocara, Fasciola), oncospheres tenniids and viable cysts of pathogenic intestinal protozoa
Lacto-positive Escherichia coli (LPC) no more than	10000 in 1 cubic. dm	5000 in 1 cubic. dm
Coliphages (in plaque-forming units)	100 in 1 cu. dm	100 in 1 cu. dm
Water toxicity					Wastewater discharged into a water body should not have an acute toxic effect on the test objects. The water of the water body at the control site should not have a chronic toxic effect on the test objects
Note. A dash means that the indicator is not standardized.

Intensity of wastewater pollution according to microbiological indicators

(approximate data)

	microbiological indicators
Type of wastewater	Total coliform bacteria CFU/100 ml	Coliphages PFU/100 ml	Viruses PFU/100 ml	Nella CFU/l	useful stick
Domestic wastewater
Municipal wastewater (ratio of cotton/domestic and industrial wastewater 60:40)
Wastewater from livestock farms
Drains from infectious diseases hospitals
Mine and quarry waters
Drainage water
Superficial storm water

MINISTRY OF NATURAL RESOURCES OF THE RUSSIAN FEDERATION
ORDER

On approval of the Methodology for developing standards for permissible discharges of substances and microorganisms into water bodies for water users

In accordance with paragraph 2 of the Decree of the Government of the Russian Federation of July 23, 2007 No. 469 “On the procedure for approving standards for permissible discharges of substances and microorganisms into water bodies for water users” (Collected Legislation of the Russian Federation, 2007, No. 31, Art. 4088) p r and Kazyva:

Minister Yu.P. Trutnev

Approved by order of the Ministry of Natural Resources of Russia

dated 12/17/2007 No. 333

METHODOLOGY

DEVELOPMENT OF STANDARDS FOR PERMISSIBLE DISCHARGES OF SUBSTANCES AND MICROORGANISMS INTO WATER BODIES FOR WATER USERS

I. Purpose and scope

1. According to Article 1 of the Federal Law of January 10, 2002 No. 7-FZ "On Environmental Protection"(Collected Legislation of the Russian Federation, 2002, No. 2, Art. 133; 2004, No. 35, Art. 3607; 2005, No. 1, Art. 25; No. 19, Art. 1752; 2006, No. 1, Art. 10; No. 52, article 5498) standards for permissible discharges of substances, including radioactive and other substances and microorganisms (standards for permissible discharges of substances and microorganisms ) - standards that are established for subjects of economic and other activities in accordance with the mass indicators of chemical substances, including radioactive, other substances and microorganisms, permissible for entry intothe environment from stationary, mobile and other sources in the prescribed manner and taking into account technological standards, and subject to which environmental quality standards are ensured.

The calculated value of the permissible discharge standard is closely related to the numerical value of the water quality standard for water bodies.

Water quality standards are developed for the conditions of drinking, domestic and fishing water use, determined in accordance with current legislation.

3. Water quality standards for a water body include:

general requirements for the composition and properties of surface water for various types of water use;
a list of maximum permissible concentrations (MAC) of substances in the water of water bodies for drinking and domestic water use;
list of maximum permissible concentrations of substances for water bodies of fishery importance.

5. When discharging wastewater or other types of economic activity that affect the state of water bodies of fishery importance, the quality standards of surface waters or their natural composition and properties (in the event of a natural excess of these standards) are observed throughout the entire water use area, starting from the control point ( control point cross-section of a water stream in which water quality is monitored), but no further than 500 m from the place of wastewater discharge or the location of other sources of surface water pollution (places of mining, work on a water body, etc.).

For those substances for which the increment to the natural background is normalized, VAT is determined taking into account these permissible increments to the natural background quality of water.

14. VAT is developed for five years. Revision and clarification of VAT is carried out before their expiration, in the following cases:

when production technology, wastewater treatment methods, discharge parameters change;

when approving, in accordance with the established procedure, standards for permissible impact on water bodies.

18. In accordance with Art. 44, 60 Water Code of the Russian Federation dated June 3, 2006 No. 74-FZ (Collection of Legislation of the Russian Federation, 2006, No. 23, Art. 2381; No. 50, Art. 5279; 2007, No. 26, Art. 3075) prohibits the discharge of waste and ( or) drainage waters into water bodies:

Classified as specially protected water bodies.

Z It is prohibited to discharge waste and (or) drainage waters into water bodies located within the boundaries of:

Zones, districts of sanitary protection of sources of drinking and domestic water supply;

The first and second zones of sanitary (mountain sanitary) protection districts of medical and recreational areas and resorts;

Fishery protection zones, fishery protected areas.

When operating the water management system, it is prohibited:

2) withdraw (withdraw) water resources from a water body in an amount that has a negative impact on the water body;

Methodology for developing standards for permissible discharges of substances into water bodies. Methodology for developing standards for permissible discharges of substances into water bodies Order 333 on approval of the methodology for developing standards

II. Methodological basis for calculating permissible discharge standards

III. Calculation of VAT values ​​for individual wastewater discharges into watercourses

V. Calculation of VAT for individual releases into reservoirs and lakes

VII. Calculation of VAT for individual releases into internal sea waters and the territorial sea of ​​the Russian Federation

VIII. Calculation of VAT for a set of releases into internal sea waters located within the design water management area and into the territorial sea of ​​the Russian Federation

I. Purpose and scope

III. Calculation of VAT values for individual wastewater discharges into watercourses

VII. Calculation of VAT for individual releases into internal sea waters and the territorial sea of the Russian Federation

VIII. Calculation of VAT for a set of releases into internal sea waters located within the design water management area and into the territorial sea of the Russian Federation