Governmental Order 242/1993 Coll. which provides the indicators of the permissible degree of contamination of waters

1 242/1993 Coll. GOVERNMENTAL ORDER of the Slovak Republic dated 12th October 1993 which provides the indicators of the permissible degree of contamination of waters The government of the Slovak Republic under Article 23 par. 2 Act No. 138/1973 Coll. on Waters (Water Act) orders : Article 1 In permitting of discharging of waste and special waters1) into surface waters the water management institution proceeds according to indicators of the admissible degree of contamination of waters (hereinafter only “indicator”), which have been specified in annexes No. 1 to 3 of this decree. 1) Article 8 par. 1 Letter c) and d) of the Act No. 138/1973 Coll. on Waters (Water Act). Article 2 (1) The indicators entered in Annex No.1 of this Decree refer to the concentration of substances in discharged waste or special waters and are binding for water management institutions in permitting of discharge of waste or special waters into surface waters (hereinafter only “decision taking on discharging of waters”). If the indicator characteristic for a concrete kind of discharged waste or special waters is not entered in Annex No. 1 of this Decree, it will be specified by the competent water management institution after deliberation with the Ministry of Environment of the Slovak Republic (hereinafter “Ministry” and with the Ministry of Heath of the Slovak Republic according to the similar kind of production or activity. (2) The indicators entered in Annex No. 1 of this Decree specify the highest permissible degree of contamination in discharged waste or special waters. The water management can, with regard to the local water management conditions and interests of the protection of waters, specify stricter values, namely up to the limit of values applicable for water courses. (3) The water management institution will specify the indicators of the quality of discharged waste waters to the entity that discharges waste or special waters (hereinafter only “contaminator”) from various kinds of production or activities by one outlet taking into regard proportionate representation of the amount and quality of waters discharged from individual productions or activities. (4) The discharge of waste waters within the extent of contamination of sewage from households or other similar facilities is being permitted by the competent water management institution on the basis of professional assessment of their impacts on the waters in the recipient. Article 3 (1) The contaminator is obliged to monitor according to appropriate technical standards, 2) the amount of discharged waste or special waters and their contamination unless the water management institution in decision taking on discharge of waters specifies otherwise. The provision of the first sentence does not apply to discharge of sewage waste waters from the sources with production of contamination up to 25 2 equivalent citizens, i.e. up to 1,5 kg a day according to the indicator BOD5, unless the water management institution decides otherwise. (2) For the needs of this decree an equivalent inhabitant represents a unit, which shows which number of inhabitants makes the same contamination as waste waters from the production of unit amount of the product or raw material. The basis of the calculation is a specific contamination on one inhabitant 60 g BOD5 a day. (3) Unless for the method of provision of one of the indicators a special technical standard has been issued until now, the method of execution of analysis will be specified by a water management institution with the approval of the Ministry. 2) ČSN 75 7241 - Checking of Waste and Special Waters ČSN 83 0540 - Chemical and Physical Analysis of Waste Waters Article 4 (1) The values of indicators specified in the decision of water management institution are considered to be observed if in the analysis of eight hour sample of mixture obtained by pouring together the equivalent volumes of discharged waste or special waters mostly in one hour interval alternately by automatic take off facility the higher values have not been ascertained. The time interval of monitoring them will be specified by a competent water management institution with regard to the mode of discharge of waste or special waters from the source of contamination. (2) For impact discharge of waste or special waters the water management institution will individually specify the conditions for checking of meeting the values of indicators according to local conditions. (3) Assessment and inspection of meeting the specified values of indicators can be based only upon analyses made by authorised laboratories, the quality of which is acceptable and which is subject to systematic external inspection; the list of these laboratories will be specified by the Ministry. Article 5 The indicators entered in Annexes No.2 and 3 of this Decree shall specify the permissible degree of contamination in the recipient after mixing of discharged waste or special waters with surface waters under 355-days flow rate, alternately under minimally ensured flow rate in the recipient. The water management institution sees to these indicators in taking decisions on discharge of waters with the target of gradually achieving them. Article 6 The Decree of the Government of the Slovak Socialist Republic No. 30/1975 Coll. which specifies the indicators of the admissible degree of contamination of waters is hereby being repealed. Article 7 This decree comes into force on 1st November 1993. Vladimír Mečiar, sign manual ANNEX NO. 1 3 INDICATORS OF ADMISSIBLE DEGREE OF CONTAMINATION OF WASTE WATERS Sewage and municipal waste waters Size of the source of contamination Indicator BOD51) (mg/l) CHSKcr (mg/l) Number of equivalent inhabitants (EO) (kg BOD5 upon inflow for a day) to 31st Dec. 2004 from 1st January 2005 to 31st Dec. 2004 from 1st January 2005 up to 50 EO (up to 3 kg BOD5) 80 60 - up to 500 EO (up to 30 kg BOD5) 60 50 - up to 5000 EO (up to 300 kg BOD5) 50 40 170 140 up to 25 000 EO (up to 1 500 kg BOD5) 45 35 150 120 up to 100 000 EO (up to 6 000 kg BOD5) 35 30 125 100 over 100 000 EO 30 20 110 90 4 Size of the source of contamination Indicator NL2) (mg/l) + N-NH4 (mg/l) Number of equivalent inhabitants (EO) (kg BOD5 upon inflow for a day) to 31st Dec. 2004 from 1st January 2005 to 31st Dec. 2004 from 1st January 2005 up to 50 EO (up to 3 kg BOD5) 65 50 - up to 500 EO (up to 30 kg BOD5) 55 40 - up to 5000 EO (up to 300 kg BOD5) 45 35 - 20 up to 25 000 EO (up to 1 500 kg BOD5) 35 30 25 15 up to 100 000 EO (up to 6 000 kg BOD5) 30 25 15 10 over 100 000 EO 25 20 10 5 5 Size of the source of contamination Indicator P total (mg/l) Number of equivalent inhabitants (EO) (kg BOD5 upon inflow for a day) to 31st Dec. 2004 from 1st January 2005 up to 50 EO (up to 3 kg BOD5) up to 500 EO (up to 30 kg BOD5) up to 5000 EO (up to 300 kg BOD5) up to 25 000 EO (up to 1 500 kg BOD5) 5 up to 100 000 EO (up to 6 000 kg BOD5) 5 3 over 100 000 EO 3 1,5 Notes: 1) BOD5 - with suppressing of nitrification 2) NL - indissoluble substances 6 Industrial Waste Waters and Special Waters Extraction and Processing of Ores Uranium Ores until 31.12.2004 from 1.1.2005 pH 6,5 - 9,0 6,5 - 9,0 NL mg/l 30 25 radium Bq/l 0,5 0,3 uranium mg/l 0,3 0,2 Other Ores pH 6 - 9 6 - 9 CHSK-Cr mg/l 100 80 NL mg/l 80 60 iron mg/l 5,0 4,0 zinc mg/l 2,0 1,6 lead mg/l 0,5 0,4 copper mg/l 1,0 0,8 arsenic mg/l 0,5 0,4 Extraction and Processing of Aggregates until 31.12.2004 from 1.1.2005 NL mg/l 50 40 NEL1) mg/l 5 2 Extraction and Processing of Coal Extraction of Coal and Briquetting Plants pH 6 - 9 6 - 9 NL mg/l 100 80 CHSK-Cr mg/l 150 120 7 Heat Treatment of Coal pH 6 - 9 6 - 9 NL mg/l 50 40 CHSK-Cr mg/l 1000 800 phenols mg/l 5,0 4,0 N-NH4 mg/l 200 150 cyanides total mg/l 1,0 0,8 Heat Plants and Electricity Power Plants Water Treatment NL mg/l 50 40 CHSK-Cr mg/l 50 40 iron mg/l 5 4 hydrazine mg/l 5 4 8 Metallurgical Production Production and Processing of Iron pH 6,5 - 9 6,5 - 9 NL mg/l 50 40 CHSK-Cr mg/l 150 100 iron mg/l 15 10 NEL mg/l 5 3 Colour Metallurgy and Production of Ferro-Alloys pH 6,5 - 9 6,5 - 9 NL mg/l 50 40 copper mg/l 1,0 0,8 zinc mg/l 2,0 1,6 nickel mg/l 1,0 0,8 aluminium mg/l 3,0 2,5 vanadium mg/l 2,0 1,6 lead mg/l 0,5 0,4 chromium mg/l 1,0 0,8 tin mg/l 2,0 1,6 mercury mg/l 0,2 0,1 Mechanical and Electrotechnical Production Mechanical Machining until 31.12.2004 from 1.1.2005 pH 6,5 - 9,5 6,5 - 9,5 NL mg/l 50 40 CHSK-Cr mg/l 800 500 NEL mg/l 10 5 N-NO2 mg/l 5 2,5 Surface Treatment of Metals pH 6,5 - 9,5 6,5 - 9,5 NL mg/l 30 25 CHSK-Cr mg/l 300 250 fluorides mg/l 20 15 N-NO2 mg/l 5 2,5 9 sulphides mg/l 1,0 0,5 arsenic mg/l 0,5 0,25 aluminium mg/l 3,0 2,0 silver mg/l 1,0 0,5 barium mg/l 3,0 2,0 cadmium mg/l 0,5 0,25 cobalt mg/l 1,0 0,5 N-NH4 mg/l 50 25 phosphor total mg/l 5 2,5 chlorinated hydrocarbons volatile 2) mg/l 1,0 0,5 toxic cyanides mg/l 0,2 0,1 cyanides total mg/l 1,0 0,5 chlorine mg/l 0,5 0,25 chromium total mg/l 1,0 0,5 chromium CrVI mg/l 0,2 0,1 copper mg/l 1,0 0,5 molybdenum mg/l 2,0 1,0 mercury mg/l 0,2 0,1 nickel mg/l 1,0 0,25 lead mg/l 0,5 0,25 zinc mg/l 2,0 1,0 NEL mg/l 10 5 Chemical Industry Rafineries of Oil and Petrochemistry pH 6 - 9 6 - 9 NL mg/l 50 40 CHSK-Cr mg/l 200 150 BOD5 mg/l 50 30 NEL mg/l 20 15 phenols mg/l 0,5 0,4 Distribution Storehouses of Crude Oil pH 6 - 9 6 - 9 NL mg/l 50 50 CHSK-Cr mg/l 20 16 until 31.12.2004 from 1.1.2005 CHSK-Cr mg/l 150 120 10 Production of Chemical Fibres NL mg/l 50 40 CHSK-Cr mg/l 200 160 BOD5 mg/l 50 40 sulphides mg/l 10 8 zinc mg/l 10 8 Pulp Production BOD5 mg/l 100 50 NL mg/l 100 50 CHSK-Cr mg/l 500 250 Paper Production BOD5 mg/l 50 40 NL mg/l 60 40 CHSK-Cr mg/l 250 200 Other Chemical Products BOD5 mg/l 50 40 NL mg/l 50 40 CHSK-Cr mg/l 400 300 Consumer Industry Textile Industry NL mg/l 50 40 CHSK-Cr mg/l 300 240 BOD5 mg/l 50 40 Chlorine mg/l 0,5 0,4 NEL mg/l 10 8 Glassworks NL mg/l 30 25 CHSK-Cr mg/l 150 120 fluorides mg/l 30 25 lead mg/l 1,5 1,2 arsenic mg/l 1,0 0,8 barium mg/l 5 4 11 Tanneries BOD5 mg/l 50 40 CHSK-Cr mg/l 300 250 chromium total mg/l 2 1 sulphides mg/l 2 1 Ceramic Industry NL mg/l 50 40 Food Industry Dairies CHSK- Cr mg/l 200 160 BOD5 mg/l 50 40 Breweries CHSK- Cr mg/l 200 160 BOD5 mg/l 50 40 Sugar Mills CHSK- Cr mg/l 250 200 BOD5 mg/l 80 60 NL mg/l 60 50 12 Meat Processing CHSK- Cr mg/l 250 200 BOD5 mg/l 50 40 EL3) mg/l 10 5 Distilleries and Yeast Plants CHSK- Cr mg/l 250 200 BOD5 mg/l 50 40 Starch Plants CHSK- Cr mg/l 250 200 BOD5 mg/l 50 40 1) NEL - nonpolar extractable substances 2) chlorinated hydrocarbons volatile - above all trichloroethen , teteachloroethen, tetrachlormethan, 1,1,1 trichloeethen 3) EL - extractable substances - above all fats 13 ANNEX 2 INDICATORS OF THE QUALITY OF SURFACE WATERS 1. biological state of waters expressed by saprobe index of biosestone according to Pantle-Buck) smaller than 2,2 in case of water courses and smaller than 3,2 in case of other surface waters; 2. state enabling natural reproduction and development of trout fish in water courses, but also in other surface waters, where it is made possible by geomorphological, hydrological and other conditions of life of trout fish, in other surface waters minimal state enabling natural reproduction and development of carp fish; 3. state without smell in waters of water courses and tanks weakly inorganic in other waters; 4. state in which colour changes are not visible in waters of water courses in the layer up to 20 cm and in other surface waters in the layer of up to 10 cm; 5. temperature of up to 20°C in case of trout waters and water courses and up to 26°C in case of other surface waters; 6. state of surface waters in which excessive undesirable organisms (for example water flower) do not develop any more, neither do sludge banks appear, water level does not get covered by foam, fats, oils not by any other substances; 7. state of surface waters in which hygienic requirements for protection of health against ionising radiation are not being infringed;1) 8. state of surface waters in which neither toxic action of radioactive and other substances for decreasing of the productivity of water ecosystem appears nor significant narrowing of spectrum of species of water organisms, nor exceeding of the highest permissible values of the batch or volume activity of radionuclides. 1) Order of the Ministry of Health of the Slovak Socialist Republic No. 65/1972 Coll. on Protection of Health against Ionising Radiation. 14 ANNEX 3 INDICATORS OF PERMISSIBLE AMOUNT OF SUBSTANCES IN SURFACE WATERS Indicator Symbol Unit Valid values Note in water courses 1) in other surface waters1) 1. Solved oxygen 02 mg/l min.6 min.5 the values of night and morning samples are excluded 2. Biochemi cal consumption of oxygen BOD5 mg/l 4 8 3. Chemical consumption of oxygen by perman ganate CHSK-Mn mg/l 8 15 with excluding of the influence of natural humin substances 4. Chemical consumption of oxygen by dichlorman CHSK-Cr mg/l 25 35 5. Sulphan and sulphides S2- mg/l 2) 0,05 6. Reaction of water pHH mg/l 6,0 - 8,5 6,0 - 8,5 except for naturally acid and basic waters 7. Solved substances RL mg/l 500 800 8. Iron total Fe mg/l 0,5 2,0 9. Manganese total Mn mg/l 0,1 0,3 10. Amoniacal nitrogen + N-NH4 mg/l 0,5 1,5 free ammonia must not be in water courses at all 15 Indicator Symbol Unit Valid values Note in water courses 1) in other surface waters1) 11. Free ammonia NH3 mg/l 2) 0,5 12. Nitrite nitrogen N-NO2 mg/l 0,005 0,02 13. Nitrate nitrogen N-NO3 mg/l 3,4 7,0 14. Organic nitrogen N-org. mg/l 1,0 2,5 15. Phosphorus total P mg/l 0,05 0,4 16. Chlorides Cl- mg/l 200 300 17. Sulphate 2 SO4 mg/l 150 250 18. Calcium Ca mg/l 150 200 19. Magnesium Mg mg/l 50 100 20. Fluorides F- mg/l 0,5 1,0 21. Phenols vaporizing with water vapour FN 1 mg/l 0,01 0,0 22. Tensides anion PAL-A mg/l 0,5 1,0 23. Non-polar extractable substances NEL-A mg/l 0,01 0,1 24. Cyanides total CN- mg/l 2) 0,2 25. Boron B mg/l 0,3 0,5 26. Active chlorine Cl2 mg/l 2) 0,02 16 Indicator Symbol Unit Valid values Note in water courses 1) in other surface waters1) 27. Extractable organ. bound chlorine EOC1 mg/l 0,01 0,02 28. Mercury Hg g/l 0,1 0,5 29. Cadmium Cd g/l 5 10 30. Lead Pb g/l 20 50 31. Arsenic As g/l 20 50 32. Copper Cu g/l 50 100 33. Chromium total Cr g/l 100 200 34. Chromium (VI) CrIV g/l 10 20 35. Nickel Ni g/l 50 100 36. Zinc Zn g/l 50 100 37. Vanadium V g/l 15 50 38. Silver Ag g/l 10 20 39. Selenium Se g/l 10 50 40. Barium Ba mg/l 1,0 2,0 41. Berylium Be g/l 0,2 1,0 42. Total volume activity alpha aV, calpha mBq/l 100 500 43. Total volume activity beta av, c ß mBq/l 500 1000 44. Radium 226 Ra 226 mBq/l 50 200 45. Uranium U g/l 20 50 17 Indicator Symbol Unit Valid values Note in water courses 1) in other surface waters1) 46. Tricium H3(T) Bq/l 100 1000 47. Strontium and ytrium Sr90+ Y90 Bq/l Bq/l 0,3 0,5 48. Cesium Cs137 Bq/l 0,3 0,9 49. Colifor mous bacteria Coli KTJ/l ml 10 100 50. Psycho phylous bacteria Psychro KTJ/l ml / 1 ml 1000 5000 51. Feacal coliformous bacteria Fecoli KTJ/ 1 ml 2 20 52. Entero coces Enko KTJ/ 1 ml 1 10 53. Benzene BZ mg/l 0,01 0,05 54. Chloro benzene CB mg/l 0,003 0,01 55. Dichlorobe nzenes DCB mg/l 0,0003 0,001 56. Polychrinat ed biphenyls PCB ng/l 2) 25 57. Benzo(a) pyrene BZP ng/l 10 50 Notes : 1) except for solved oxygen these are maximum values 2) below the limit of sensitivity of specification