environmental protection Citation, commencement and interpretation 1 1 These Regulations may be cited as the Landfill (Amendment No.2) Regulations (Northern Ireland) 2007 and shall come into operation on 4th June 2007. 2 In these Regulations “the Landfill Regulations ” means the Landfill Regulations (Northern Ireland) 2003 . Amendment of the Landfill Regulations 2 The Landfill Regulations are amended in accordance with the following regulations. 3 In regulation 2 (interpretation), at the appropriate place insert— “L/S = 10 1/ kg ” means a liquid to solid ratio of 10 litres to one kilogram; . 4 In regulation 4 (cases where regulations do not apply), for paragraph (c)(i) substitute— i non-hazardous dredging sludges alongside small waterways from where they have been dredged out; . 5 In regulation 10 (waste which may be accepted in the different classes of landfill), delete paragraph (2). Amendment of Schedule 1 (Criteria and Procedures for the acceptance of waste at landfills) 6 In paragraph 5 of Schedule 1(basic characterisation) at the end of sub-paragraph (4)(c)(i) for “or” substitute “and”. 7 In paragraph 8 of Schedule 1 (interpretation of Part III), at the end insert— c “PAHs (Polycyclic Aromatic Hydrocarbons)” shall mean Naphthalene, Acenaphthylene, Acenaphthene, Anthracene, Benzo(a)anthracene, Benzo(b)fluoranthene, Benzo(k)fluoranthene, Benzo(g,h,i)perylene, Benzo(a)pyrene, Chrysene, Coronene, Dibenzo(a,h)anthracene, Fluorene, Fluoranthene, Indeno(1,2,3-c,d)pyrene, Phenanthrene and Pyrene. . 8 In paragraph 11 of Schedule 1 (limit values for waste acceptable at landfills for inert waste), at the foot of the columns in Table 3 headed “Parameter” and “Value” insert “PAHs (Polycyclic aromatic hydrocarbons) (total of 17)” and “100” respectively. 9 In paragraph 12 of Schedule 1 (criteria for landfills for non-hazardous waste), in sub-paragraph (a) delete “granular”. 10 For paragraph 14 of Schedule 1 (criteria for granular stable non-reactive hazardous waste and non-hazardous waste deposited in the same cell with such waste) substitute— Criteria for stable non-reactive hazardous waste and non-hazardous waste deposited in the same cell with such waste 14 Stable, non-reactive hazardous waste and non-hazardous waste which is to be landfilled in the same cell with such waste shall only be accepted if— a in the case of granular waste– i it meets the limit values for leaching set out in Table 4; ii it meets the additional criteria set out in Table 5; and iii it will have either– aa if it is cohesive waste, a mean in situ shear strength of at least 50kPa; or bb if it is non-cohesive waste, an in situ bearing ratio of at least 5%; b in the case of monolithic waste– i it meets either– aa the limit values for leaching set out in Table 4; or bb the limit values for leaching set out in Table 5A; ii it meets the additional criteria set out in Table 5B; iii it has a mean unconfined compressive strength of at least 1MPa after 28 days curing; iv it has either– aa dimensions of greater than 40cm along each side; or bb a depth and fracture spacing when hardened of greater than 40cm; and v where the waste was subjected to treatment to render it monolithic, prior to such treatment it met the following limit values— aa Loss on Ignition of 10%; or bb Total Organic Carbon of 6%. Table 4 Component Symbol L/S = 10 l/kg mg/kg dry substance (a) These values must be determined using EN 12457/1 to 3 (applied, in the case of monolithic waste, to a sample which has been crushed). (b) If the waste does not meet this value for Dissolved Organic Carbon ( DOC ) at its own pH, it may alternatively be tested at L/S = 10 l/kg and a pH of between 7.5 and 8.0. The waste shall be considered as complying with the acceptance criterion for DOC if the result of this determination does not exceed 800 mg/kg. (c) The value for Total Dissolved Solids can be used alternatively to the values for Sulphate and Chloride. Arsenic As 2 Barium Ba 100 Cadmium Cd 1 Total Chromium Cr total 10 Copper Cu 50 Mercury Hg 0.2 Molybdenum Mo 10 Nickel Ni 10 Lead Pb 10 Antimony Sb 0.7 Selenium Se 0.5 Zinc Zn 50 Chloride Cl - 15,000 Fluoride F - 150 Sulphate SO 4 2- 20,000 Dissolved Organic Carbon DOC 800 Total Dissolved Solids TDS 60,000 Table 5 Parameter Value (a) If this value is not achieved, a higher limit value may be permitted by the Chief Inspector, provided that the Dissolved Organic Carbon value of 800 mg/kg is achieved at L/S=10l/kg, either at the material’s own pH or at a pH value between 7.5 and 8.0. Total Organic Carbon ( TOC ) 5% pH Minimum 6 Acid Neutralisation Capacity ( ANC ) Must be evaluated Table 5A Component Symbol mg/m 2 (a) These values must be determined using EA NEN 7375:2004. Where it is appropriate for compliance testing, the Chief Inspector may specify use of a shortened version of the 64-day tank test provided for in EA NEN 7375:2004 comprising only the first four steps, and in such cases, the limit values shall be a quarter of the values in the table. Arsenic As 1.3 Barium Ba 45 Cadmium Cd 0.2 Total Chromium Cr total 5 Copper Cu 45 Mercury Hg 0.1 Molybdenum Mo 7 Nickel Ni 6 Lead Pb 6 Antimony Sb 0.3 Selenium Se 0.4 Zinc Zn 30 Chloride Cl - 10,000 Fluoride F - 60 Sulphate SO 4 2- 10,000 Dissolved Organic Carbon DOC Must be evaluated Table 5B Parameter Value pH of the eluate from the monolith or crushed monolith Must be evaluated Electrical conductivity (μS.cm -1 m -2 ) of the eluate from the monolith or crushed monolith Must be evaluated Acid Neutralisation Capacity (ANC) of the crushed monolith Must be evaluated. 11 For paragraph 17 of Schedule 1 (criteria for waste acceptable at landfills for hazardous waste) substitute— Criteria for waste acceptable at landfills for hazardous waste 17 Waste shall only be accepted at a landfill for hazardous waste if— a in the case of granular waste– i it meets the limit values for leaching set out in Table 6; ii it meets the additional criteria set out in Table 7; and iii it will have either– aa if it is cohesive waste, a mean in situ shear strength of at least 50kPa; or bb if it is non-cohesive waste, an in situ bearing ratio of at least 5%; b in the case of monolithic waste– i it meets either– aa the limit values for leaching set out in Table 6; or bb the limit values for leaching set out in Table 8; ii it meets the additional criteria set out in Table 5B; iii it has a mean unconfined compressive strength of at least 1MPa after 28 days curing; iv it has either– aa dimensions of greater than 40cm along each side; or bb a depth and fracture spacing when hardened of greater than 40cm; and v where the waste was subjected to treatment to render it monolithic, prior to such treatment it met the following limit values— aa Loss on Ignition of 10%; or bb Total Organic Carbon of 6%. Table 6 Components Symbol L/S = 10 l/kg mg/kg dry substance (a) These values must be determined using EN 12457/1 to 3 (applied, in the case of monolithic waste, to a sample which has been crushed). (b) The Chief Inspector may include conditions in a permit authorising limit values for specific parameters (other than Dissolved Organic Carbon (DOC)) up to three times higher for specified wastes accepted in a landfill, taking into account the characteristics of the landfill and its surroundings and provided a risk assessment demonstrates that emissions (including leachate) from the landfill will present no additional risk to the environment. (c) If the waste does not meet this value for DOC at its own pH, it may alternatively be tested at L/S = 10 l/kg and a pH of between 7.5 and 8.0. The waste shall be considered as complying with the acceptance criterion for DOC, if the result of this determination does not exceed 1,000 mg/kg. (d) The value for Total Dissolved Solids can be used alternatively to the values for Sulphate and Chloride. Arsenic As 25 Barium Ba 300 Cadmium Cd 5 Total Chromium Cr total 70 Copper Cu 100 Mercury Hg 2 Molybdenum Mo 30 Nickel Ni 40 Lead Pb 50 Antimony Sb 5 Selenium Se 7 Zinc Zn 200 Chloride Cl - 25,000 Fluoride F - 500 Sulphate SO 4 2- 50,000 Dissolved Organic Carbon DOC 1,000 Total Dissolved Solids TDS 100,000 Table 7 Parameter Values (a) Either Loss on Ignition or Total Organic Carbon must be used (b) If this value for Total Organic Carbon is not achieved, a higher limit value may be permitted by the Chief Inspector, provided that the DOC value of 1,000 mg/kg is achieved at L/S = 10 l/kg at its own pH or a pH value of between 7.5 and 8.0. Loss On Ignition ( LOI ) 10 % Total Organic Carbon (TOC) 6 % Acid Neutralisation Capacity (ANC) Must be evaluated Table 8 Components Symbol mg/m 2 (a) These values must be determined using EA NEN 7375:2004. Where it is appropriate for compliance testing, the Chief Inspector may specify use of a shortened version of the 64-day tank test provided for in EA NEN 7375:2004 comprising only the first four steps, and in such cases, the limit values shall be a quarter of the values in the table. (b) The Chief Inspector may include conditions in a permit authorising limit values for specific parameters (other than DOC) up to three times higher for specified wastes accepted in a landfill, taking into account the characteristics of the landfill and its surroundings and provided a risk assessment demonstrates that emissions (including leachate) from the landfill will present no additional risk to the environment. Arsenic As 20 Barium Ba 150 Cadmium Cd 1 Total Chromium Cr total 25 Copper Cu 60 Mercury Hg 0.4 Molybdenum Mo 20 Nickel Ni 15 Lead Pb 20 Antimony Sb 2.5 Selenium Se 5 Zinc Zn 100 Chloride Cl - 20,000 Fluoride F - 200 Sulphate SO 4 2- 20,000 Dissolved Organic Carbon DOC Must be evaluated. 12 For paragraph 19 of Schedule 1 (interpretation of Part IV) substitute— Interpretation 19 In this Schedule— “ BS 1924-2:1990” means the British Standard entitled “Stabilized materials for civil engineering purposes – Part 2: Methods of test for cement-stabilized and lime-stabilized materials”, which came into effect in October 1990; “BS 1377-9:1990” means the standard described in the British Standard entitled “Methods of test for Soils for Civil Engineering Purposes. Part 9: in-situ tests”, which came into effect on 31st August 1990; “DD CEN /TS 14405:2004” means the standard described in the draft document entitled “Characterisation of waste - Leaching behaviour test - Up-flow percolation test”, which was published by the British Standards Institute on 13th July 2004; “EA NEN 7375:2004” means the Environment Agency document based on a translation of the Netherlands Normalisation Institute Standard NEN 73745:2004 entitled “Leaching characteristics of soil and stony building and waste materials. Leaching tests. Determination of leaching of inorganic components from building and monolithic waste materials with the diffusion test”, published by the Environment Agency on its website on 14th April 2005; “EA NEN 7371:2004” means the Environment Agency document based on a translation of the Netherlands Normalisation Institute Standard NEN 73741:2004 entitled “Leaching characteristics of solid (earth and stony) building and waste material. Leaching tests. Determination of the availability of inorganic components for leaching”, published by the Environment Agency on its website on 14th April 2005; “EN 12457/1” means the standard described in the British Standard entitled “Characterisation of waste. Leaching. Compliance test for leaching of granular waste materials and sludges. One stage batch test at a liquid to solid ratio of 2 l/kg for materials with high solid content and with particle size below 4 mm (without or with size reduction)”, published under the numbers BS EN 12457-1:2002 which came into effect on 15th October 2002; “EN 12457/2” means the standard described in the British Standard entitled “Characterisation of waste. Leaching. Compliance test for leaching of granular waste materials and sludges. One stage batch test at a liquid to solid ratio of 10 l/kg for materials with particle size below 4 mm (without or with size reduction)”, published under the numbers BS EN 12457-2:2002 which came into effect on 15th October 2002; “EN 12457/3” means the standard described in the British Standard entitled “Characterisation of waste. Leaching. Compliance test for leaching of granular waste materials and sludges. Two stage batch test at a liquid to solid ratio of 2 l/kg and 8 l/kg for materials with a high solid content and with a particle size below 4 mm (without or with size reduction)”, published under the numbers BS EN 12457-3:2002 which came into effect on 15th October 2002; “EN 12506” means the standard described in the British Standard entitled “Characterisation of waste. Analysis of eluates. Determination of pH, As, Ba, Cd, Cl - , Co, Cr, Cr VI , Cu, Mo, Ni, NO 2 - , Pb, total S, SO 4 2- , V and Zn”, published under the numbers BS EN 12506:2003 which came into effect on 11th June 2003; “EN 12879” means the standard described in the British Standard entitled “Characterisation of sludges. Determination of the loss on ignition of dry mass”, published under the numbers BS EN 12879:2000 which came into effect on 15th October 2000; “EN 13137” means the standard described in the British Standard entitled “Characterisation of waste. Determination of total organic carbon (TOC) in waste, sludges and sediments”, published under the numbers BS EN 13137:2001 which came into effect on 28th September 2001; “EN 13370” means the standard described in the British Standard entitled “Characterisation of waste. Analysis of eluates. Determination of Ammonium, AOX, conductivity, Hg, phenol index, TOC, easily liberatable CN - , F - ”, published under the numbers BS EN 13370:2003 which came into effect on 11th June 2003; “EN 13656” means the standard described in the British Standard entitled “Characterisation of waste. Microwave assisted digestion with hydrofluoric ( HF ), nitric (HNO 3 ), and hydrochloric ( HCl ) acid mixture for subsequent determination of elements”, published under the numbers BS EN 13656:2002 which came into effect on 22nd October 2002; “EN 13657” means the standard described in the British Standard entitled “Characterisation of waste. Digestion for subsequent determination of aqua regia soluble portion of elements”, published under the numbers BS EN 13657:2002 which came into effect on 22nd October 2002; “EN 14039” means the standard described in the British Standard entitled “Characterisation of waste - Determination of hydrocarbon content in the range of C10 - C40 by gas chromatography”, published under the numbers BS EN 14039:2004 which came into effect on 29th October 2004; “PrCEN/TS 14429” means the standard described in the draft document entitled “Characterisation of waste - Leaching behaviour test - Influence of pH on leaching with initial acid/base addition”, which came into effect in February 2004; “PrEN 14346” means the standard described in the draft document entitled “Characterisation of waste - Calculation of dry matter by determination of dry residue or water content”, which came into effect in July 2004; and “PrEN 14899” means the standard described in the draft document entitled “Characterisation of waste - Sampling of waste materials: Framework for the preparation and application of a sampling plan”, which came into effect in March 2004. 13 For paragraph 20 of Schedule 1 (sampling and testing) substitute— Sampling and testing 20 1 All sampling and testing required by this Schedule shall be carried out in accordance with this paragraph. 2 Subject to sub-paragraph (3), sampling and testing shall be carried out by independent and qualified persons and institutions and only laboratories which have proven experience in waste testing and analysis and an efficient quality assurance system shall be used. 3 Sampling and testing may be carried out by producers of waste or operators where– a there is sufficient supervision by independent and qualified persons to ensure that the requirements of this Schedule are met; and b it is carried out in accordance with an appropriate quality assurance system which includes periodic independent checking. 4 All sampling shall be carried out using a sampling plan developed in accordance with PrEN 14899. 5 The following standards shall be used for the sampling and testing of general waste properties– a EN 13137 for the determination of TOC in waste, sludge and sediments; b PrEN 14346 for the calculation of dry matter by determination of dry residue or water content; c EN 12879 for the determination of loss on ignition of dry mass. 6 The following standards shall be used for strength and stability tests— a for cohesive granular waste, BS 1377-9:1990 (section 4.4: determination of in situ vane shear strength of weak intact cohesive soils); b for non-cohesive granular waste, BS 1377-9:1990 (section 4.3: determination of in situ California Bearing Ratio); c for monolithic waste, BS 1924-2:1990. 7 The following standards shall be used for leaching tests— a for granular waste– i DD CEN/TS 14405:2004 for leaching behaviour using the up-flow percolation test; ii PrCEN/TS 14429 for leaching behaviour using the test for the influence of pH on leaching with initial acid/base addition; iii EN 12457/1 to 3 for leaching of granular waste materials and sludges; b for monolithic waste— i EA NEN 7371:2004 for leaching behaviour of crushed monolith using the test for the determination of availability of inorganic components; ii PrCEN/TS 14429 for leaching behaviour of crushed monolith using the test for the influence of pH on leaching with initial acid/base addition; iii either– aa EN 12457/1 to 3 for the leaching behaviour of crushed monolith using the batch leaching test for granular waste materials and sludges; or bb EA NEN 7375:2004 for leaching behaviour of monolithic waste using the diffusion tank test. 8 The following standards shall be used for the digestion of raw waste– a EN 13657 for the digestion for subsequent determination of aqua regia portion of elements; b EN 13656 for the microwave-assisted digestion of specified acid mixtures for subsequent determination of elements. 9 The following standards shall be used for analyses– a EN 12506 and EN 13370 for analysis of eluates; b EN 14039 for determination of certain hydrocarbon contents. 10 For tests and analysis for which CEN standards are not available, the methods used must be approved by the Chief Inspector. . Amendment of Schedule 2 (General requirements for landfills) 14 In paragraph 3(7) of Schedule 2, in the table under “landfill category” delete the last two categories and substitute “Drainage layer > 0.5 metres” and “Top soil cover > 1 metre” respectively. Amendment of Schedule 4 (Transitional Provisions) 15 1 In paragraph 1 of Schedule 4, after sub-paragraph (11) insert— 11A From 30th October 2007 any relevant authorisation shall be read as containing the additional condition that waste of the types listed in regulation 9(1)(a) to (f) and waste which does not comply with the requirement for prior treatment in regulation 10(1) shall not be accepted. 2 in paragraph 3, in sub-paragraph (3)(b) delete “and (2)”. Amendment of the Waste Management Licensing Regulations (Northern Ireland) 2003 16 The Waste Management Licensing Regulations (Northern Ireland) 2003 shall be amended as follows. 1 In regulation 9(1) (Particulars to be entered in public registers) for sub-paragraph (n) substitute— n all particulars of any conditioning plan submitted to the Department under paragraph 1(3) of Schedule 4 to the 2003 Landfill Regulations or notice given under paragraph 1(5) of Schedule 4 to the 2003 Landfill Regulations; . 2 In paragraph 2 of Schedule 1 (certificates of technical competence), for the definition of “closed landfill site” substitute— “closed landfill site” means a landfill site– which finally ceased to accept waste before the relevant date as specified in the 2003 Landfill Regulations; or in relation to which the Chief Inspector has, pursuant to regulation 15(4)(b)(iii) of the 2003 Landfill Regulations, notified the operator by notice in writing that he approves the closure and in relation to a landfill site where sub-paragraph (a) or (b) applies to only part of the site, means that part of the site only.” Sealed with the Official Seal of the Department of the Environment on 24th April 2007. Wesley Shannon A Senior Officer of the Department of the Environment