For the purposes of this Regulation, the following terms shall be understood as follows:
1. Wastewater (Agua residual). Water that has been used and whose quality has been modified by the incorporation of polluting agents.
2. Ordinary Wastewater (Agua residual de tipo ordinario): Wastewater generated by the domestic activities of man (use of toilets, showers, washbasins, sinks, laundry, etc.)
3. Special Wastewater (Agua residual de tipo especial): Wastewater of a type different from ordinary.
4. Sanitary Sewer (Alcantarillado sanitario): Public network of pipes used to collect and transport wastewater to its treatment and discharge point.
5. Flow Rate (Caudal). Volume of a liquid that passes a point in a given time.
6. Average Discharge Flow Rate (Q) (Caudal promedio de vertido). Corresponds to the average value calculated from the flow rates measured during a given period. For the purposes of this regulation, the average flow rate shall be expressed in liters per second (l/s).
7. Concentration (C) (Concentración). It is the mass of an element, substance or compound, per unit volume of the liquid that contains it. For the purposes of this decree, the concentration shall be expressed in milligrams per liter (mg/l), except when other units are indicated.
8. Environmental Discharge Levy (Canon ambiental por vertidos). Monetary consideration (contraprestación en dinero) paid by those who use the environmental service of water bodies, a public domain asset, for the transport and elimination of liquid wastes originating in the point discharge (vertimiento puntual), which may generate harmful effects (efectos nocivos) on the water resource, its quality, the related ecosystems, human health, and productive activities.
9. Discharged Pollutant Load (Carga contaminante vertida). Corresponds to the pollutant mass discharged during a given period.
10. Net Discharged Pollutant Load (Carga contaminante neta vertida). Corresponds to the pollutant load calculated considering the net discharged concentration of a polluting substance, the average discharge flow rate and the discharge period.
11. Presumptive Load (Carga presuntiva). Estimation of the pollutant load generated by a specific source, based on generation indices according to the productive process, technical information referring to pollution factors related to production levels, number of employees, information derived from previous discharge characterizations.
12. Net Discharged Concentration (Concentración neta vertida). Difference between the concentration of a polluting substance present at the point of discharge (punto de descarga) minus the concentration of said substance at the point of intake (punto de captación).
13. Hydrographic Basin (Cuenca hidrográfica). Territorial unit delimited by the dividing line of its waters, which drain superficially or underground towards a common outlet.
14. Water Body or Receiving Body (Cuerpo de agua o cuerpo receptor). It is any spring (manantial), river, stream, permanent or intermittent brook, lake, lagoon, marsh, natural or artificial reservoir, artificial or natural channel, estuary, mangrove, peat bog, swamp, fresh, brackish or salt water, where wastewater is discharged, according to its classification.
15. Chemical Oxygen Demand (COD) (Demanda química de oxígeno (DQO)). Pollution parameter that corresponds to an indirect measure of the oxidizable pollutant matter present in a wastewater sample. The COD determines the amount of oxygen required to oxidize the organic matter in a wastewater sample, under specific conditions of oxidizing agent, temperature and time.
16. Soluble Chemical Oxygen Demand (Soluble COD) (Demanda química de oxígeno soluble (DQO soluble)): It is the determination of the COD after eliminating the Total Suspended Solids (SST) in the analysis sample.
17. Harmful Effects (Efectos nocivos). It is the result of incorporating into the water resource one or several polluting substances, whose concentration and flow rate (caudal) are potentially capable of degrading the resource, threatening the health of people or the environment.
18. Effluent (Efluente). In wastewater management, it refers to the flow that leaves the last conduction or treatment unit.
19. Generating Entity (Ente generador). Fixed source, natural or legal person, public or private, responsible for the reuse of wastewater, or for its discharge into a receiving body or sanitary sewer (alcantarillado sanitario).
20. Source (Fuente). Stationary, point installation, emitting polluting substances.
21. Permissible Discharge Limit (Límite permisible de vertido). Corresponds to the maximum concentration of a polluting substance permitted in the regulation that governs the discharge and use of wastewater.
22. Reference Baseline (Línea base de referencia). Current total pollution level, expressed as the total pollutant load discharged by all point sources present in a levy (canon) application zone, from which a reduction goal is defined.
23. Levy Amount (Monto del canon). It is the monetary value that must be paid for each kilogram of a polluting substance contemplated in this regulation, and that is discharged into water bodies.
24. Pollution Parameters (Parámetros de contaminación). Polluting substances regulated or subject to discharge limits and/or the application of the levy (canon).
25. Discharge Period (Período de descarga). Period in which a discharge is generated. For the purposes of this regulation, it shall be expressed in hours per day, days per month and months per year.
26. Discharge Permit (Permiso de vertido). Authorization issued by MINAE that empowers generating entities (entes generadores) to use receiving bodies with permanent flow, to make their wastewater discharges.
27. Intake Point (Punto de captación). It is the place where the user takes the water resource for any use.
28. Point of Discharge (Punto de descarga). Site or place where a discharge is made, where sampling must be carried out and which is located before the incorporation of the discharge into a receiving body, sanitary sewer (alcantarillado sanitario), soil or subsoil.
29. Agricultural Sector (Sector agropecuario): Includes agricultural production such as field crops, animal breeding, livestock and similar.
30. Manufacturing Industry Sector (Sector industria manufacturera): The manufacturing industry comprises the mechanical or chemical transformation of inorganic or organic substances into new products; the assembly of the parts that make up manufactured products; the assembly of prefabricated parts, the assembly and installation of machinery, equipment, domestic appliances; establishments specialized in the repair of industrial, commercial and office machinery and equipment, etc.
31. Commerce and Services Sector (Sector comercio y servicios): Includes activities such as: Supply of electricity, gas and water; construction; wholesale and retail trade; repair service for motor vehicles, motorcycles, personal effects and household goods; restaurant and hotel services; transportation, storage and communications services; financial intermediation establishments; insurance, real estate and services provided to companies; community, social and personal services, including public administration institutions, education, research and health centers, entertainment services, among others.
32. Environmental Services (Servicios ambientales). Environmental services are those derived directly from elements of nature and whose values and benefits can be economic, ecological or sociocultural and that directly affect the protection and improvement of the environment, fostering a better quality of life for the inhabitants.
33. Wastewater Treatment Systems (Sistemas de tratamiento de aguas residuales). They are all those works or investments whose exclusive purpose is to improve the physicochemical and bacteriological quality of wastewater discharges.
34. Total Suspended Solids (TSS) (Sólidos Suspendidos Totales (SST)). Pollution parameter that corresponds to the non-filterable residue of a natural or wastewater sample. It is defined as the portion of solids retained by a glass fiber filter that is subsequently dried at 103-105°C to a constant weight.
35. Polluting Substance (Sustancia contaminante). Any element whose incorporation into a water body entails the deterioration of its physical, chemical or biological quality, endangers human health or threatens the associated biodiversity.
36. Consumptive Water Use (Uso consuntivo del agua). Consumptive use implies that water is extracted from the point of intake (punto de captación), is used and subsequently discharged, undergoing modifications due to the incorporation of polluting agents. The use of the resource implies alteration of the initial conditions of quantity and quality.
37. Non-Consumptive Water Use (Uso no consuntivo del agua). Non-consumptive use implies that water is extracted from the point of intake (punto de captación) and returns to the water sources with little alteration in its initial quantity and quality conditions. It is generally the water used in electric power generation, river transport, recreation and aquaculture.
38. User (Usuario). A user is any natural or legal person, under public or private law, whose activity produces discharges.
39. Discharge (Vertido o vertimiento). It is any final discharge of an element, substance or compound that is contained in a residual liquid of any origin, into a water body, soil or subsoil.
40. Point Discharge (Vertimiento puntual). It is that discharge made at a fixed point and where the generating source of the discharge is identifiable.
41. Fee Application Zone (Zona de aplicación del cobro). Set of basins, basin, sub-basin or sections of a basin delimited for the application of the environmental discharge levy (canon ambiental por vertidos).
Of the Nature of the Discharge Levy (Canon por Vertidos)