Regulation No. 12 of the Minister of the Environment establishing maximum limits for dangerous substances in soil and groundwater

Maximum Limits for Dangerous Substances in Soil and Groundwater Regulation of the Minister of the Environment No. 12 of 2 April 2004 (RTL[1] 2004, 40, 662), entered into force 19 April 2004. This Regulation is established pursuant to § 12 of the “Chemicals Act” (RT I 1998, 47, 697; 1999, 45, 512; 2002, 53, 336; 61, 375; 63, 387; 2003, 23, 144; 51, 352; 75, 499; 88, 591). I. General Provisions § 1. Maximum limits for dangerous substances (1) The maximum limits for dangerous substances serve as the basis for assessing the condition of soil and groundwater and for planning measures necessary to improve the condition of soil and groundwater. (2) For the purposes of this Regulation, the maximum limits for dangerous substances are expressed as reference values and target values for these substances. The reference values for dangerous substances in soil are expressed in micrograms per dry mass of soil. § 2. Reference value (1) A reference value is the concentration of a dangerous substance in soil or groundwater above which the soil or groundwater is polluted and dangerous to human health and the environment. (2) The reference value for a group of dangerous substances is the total of the reference values for the individual substances in the group, unless determined otherwise. (3) The concentration of dangerous substances for which reference values are not established by this Regulation shall be assessed on the basis of expert assessments of the condition of soil and groundwater. An expert assessment shall be conducted if previous use of the area under assessment has created a risk of contamination from such dangerous substances. http://www.legaltext.ee/text/en/X80054.htm# ftn1 (4) Depending on the purpose of land use, this Regulation shall implement different reference values for industrial and residential zones. The purpose of land use shall be determined based on Government of the Republic Regulation No. 36 of 24 January 1995 "Approval of the Intended Purposes of Cadastral Units and of the Bases of their Designation" (RT I 1995, 13, 150; 1996, 32, 636). (5) For the purposes of this Regulation, the following are industrial zones: 1) land used for production facilities, except cold storages, grain storages, vegetable storages and warehouse complexes; 2) land used for repair shops for agricultural machinery and forging shops that belong to agricultural production facilities; 3) land used for mining; 4) land used for landfills; 5) land used for transportation; 6) national defence land, except land under and needed to service buildings used for accommodation and rendering services to people; 7) polluted technogenic soil and other wasteland resulting from human activity, which is not designated for a specific purpose; 8) commercial land used for petrol stations; 9) land used for mass communication networks and utility works; (6) The categories of land use not listed in subsection (5) belong to residential zones. (7) The suitability of groundwater as a source of potable water cannot be determined on the basis of the reference values set out in this Regulation. § 3. Target value A target value is a concentration of a dangerous substance in soil or groundwater at or below which the condition of the soil or groundwater is good, that is, safe for humans and the environment. § 4. Satisfactory condition of soil or groundwater The condition of soil or groundwater is satisfactory if the concentration of dangerous substances is between the reference values and target values for soil or groundwater. II. Maximum limits of dangerous substances in soil and groundwater No Dangerous substance CAS No. Maximum limits In soil, (mg/kg) In groundwater, µg/l Target value Reference value in residential zone Reference value in industrial zone Target value Reference value I. Heavy metals 1. Mercury (Hg) – 0,5 2 10 0,4 2 2. Cadmium (Cd) – 1 5 20 1 10 3. Lead (Pb) – 50 300 600 10 200 4. Zinc (Zn) – 200 500 1500 50 5000 5. Nickel (Ni) – 50 150 500 10 200 6. Chromium (Cr) – 100 300 800 10 200 7. Copper (Cu) – 100 150 500 15 1000 8. Cobalt (Co) – 20 50 300 5 300 9. Molybdenum (Mo) – 10 20 200 5 70 10. Tin (Sn) – 10 50 300 3 150 11. Barium (Ba) – 500 750 2000 50 7000 12. Selenium (Se) – 1 5 20 5 50 13. Vanadium (V) – 50 300 1000 – – 14. Antimony (Sb) – 10 20 100 – – 15. Thallium (Tl) – 1 5 20 – – 16. Beryllium (Be) – 2 10 50 – – 17. Uranium (U) – 20 50 500 – – II. Other inorganic compounds 18. Fluoride (as F-ion, total) – 450 1200 2000 1500 4000 19. Arsenic (As) – 20 30 50 5 100 20. Boron (B) – 30 100 500 500 2000 21. Cyanides (as CN-ion, free) – 1 10 100 5 100 22. Cyanides (CN-total) – 5 50 500 100 200 III. Aromatic hydrocarbons 23. Benzene 71-43-2 0,05 0,5 5 0,2 5 24. Ethylbenzene 100-41-4 0,1 5 50 0,5 50 25. Toluene 108-88-3 0,1 3 100 0,5 50 26. Styrene 100-42-5 1 5 50 0,5 50 27. Xylenols – 0,1 5 30 0,5 30 28. Aromatic hydrocarbons (total) – 1 10 100 1 100 29. Monophenols (total concentration of cresols and dimethyl phenols) – 1 10 100 1 100 30. Biphenols (total concentration of pyrocatechol, resorcinol and hydroquinone) – 1 10 100 1 100 31. Phenols (each following compound) 0,1 1 10 0,5 50 o-cresol 95-48-7 m-cresol 108-39-4 p-cresol 106-44-5 2.3-dimethyl phenol 526-75-0 2.4-dimethyl phenol 105-67-9 2.5-dimethyl phenol 95-87-4 2.6-dimethyl phenol 576-26-1 3.4-dimethyl phenol 95-65-8 3.5-dimethyl phenol 108-68-9 pyrocatechol 120-80-9 resorcinol 108-46-3 beta naphthol 135-19-3 hydroquinome 123-31-9 32. Chlorophenols (each compound) – 0,05 0,5 5 0,3 30 33. MTBE 1634-04-4 1 5 100 0,5 10 34. Oil products total – 100 500 5000 20 600 IV. Polycyclic aromatic hydrocarbons (PAH) 35. Anthracene 120-12-7 1 5 50 0,1 5 36. Chrysene 218-01-9 0,5 2 20 0,01 1 37. Phenanthrene 85-01-8 1 5 50 0,05 2 38. Naphthalene 91-20-3 1 5 100 1 50 39. Pyrene 129-00-0 1 5 50 1 5 40. α-methylnaphthalene 90-12-0 1 4 40 1 30 β-methylnaphthalene 91-57-6 41. Dimethylnaphthalene (each following compound) 1 4 40 1 30 1.2-dimethylnaphthalene 573-98-8 1.2-dimethylnaphthalene 575-41-7 1.4-dimethylnaphthalene 571-58-4 1.5-dimethylnaphthalene 571-61-9 1.6-dimethylnaphthalene 575-43-9 1.7-dimethylnaphthalene 575-37-1 1.8-dimethylnaphthalene 569-41-5 2.3-dimethylnaphthalene 581-40-8 2.6-dimethylnaphthalene 581-42-0 2.7-dimethylnaphthalene 582-16-1 42. Acenaphtene 83-32-9 1 4 40 1 30 43. Benzo(a)pyrene 50-32-8 0,1 1 10 0,01 1 44. PAH (total) – 5 20 200 0,2 10 V. Chlorinated aliphatic hydrocarbons 45. 1.2-dichloethane 107-06-2 0,1 2 50 0,1 5 46. Chloroform 67-66-3 0,1 1 25 0,1 2 47. Hexachlorethane 67-72-1 1 10 100 1 10 48. Chlorinated aliphatic hydrocarbons, each compound, except the compounds in this list 0,1 5 50 1 70 VI. Chlorinated aromatic hydrocarbons 49. PCB 27323-18-8 0,1 5 10 0,5 1 50. Chlororganic aromatic compounds (each compound, except the compounds in this list) – 0,1 0,5 30 0,1 5 51. Chlororganic aromatic compounds (total) – 0,2 5 100 0,5 5 VII. Amines 52. Aliphatic amines (total) – 50 300 700 1 20 VIII. Pesticides 53. 2.4-D 94-75-7 0,05 0,5 2 0,05 1 54. Aldrin 309-00-2 0,1 1 5 0,01 1 55. Dieldrin 60-57-1 0,05 0,5 2 0,01 1 56. Endrin 72-20-8 0,1 1 5 0,005 0,5 57. Isodrin 465-73-6 0,1 1 5 0,005 0,5 58. DDT 50-29-3 0,1 0,5 5 0,1 1 59. Hexachlorocyclohexane (each isomer) – 0,05 0,2 2 0,01 1 60. Trichlorobenzene – 2 5 50 0,01 5 61. Hexachlorobenzene 118-74-1 2 5 25 0,5 5 62. Pesticides (total) – 0,5 5 20 0,5 5 [1] RTL – Riigi Teataja Lisa = Appendix to the State Gazette http://www.legaltext.ee/text/en/X80054.htm# ftnref1