Fiscal 1999 Data by Facility Water Quality (Water Pollution Control Law, prefectural regulations) Category Hirasawa Plant Location 15 Gashomen, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Metal electrodes Size Land: 10,000 square meters Premises: 9,000 square meters Completion July 1940 Number of employees 220 pH Regulatory level Actual Average Maximum 5.0–9.0 7.4 6.8–8.0(*1) COD 60 ND 14 Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Number of coliform groups Cadmium Lead 120 ND 34 ND 5 ND 0.5 ND ND 1 0.01 0.09 5 0.11 0.69 10 0.77 2 10 0.09 0.21 15 ND ND 3000 790 2200 0.05 ND ND 0.1 ND 0.03 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law, prefectural regulations) Category Chokai Plant Location 15 Sannomori, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Ferrite cores Size Land: 50,000 square meters Premises: 27,000 square meters Completion April 1970 Number of employees 330 pH Regulatory level Actual Average Maximum 5.8–8.6 7.5 7.1–7.8(*1) BOD 160 (120) ND 28 Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Number of coliform groups Cadmium Lead 200 (150) ND 13 5 2 2.8 5 ND ND 1 0.03 0.37 5 0.24 2.2 10 0.87 2.1 10 0.1 0.16 15 ND ND 3000 660 2300 0.05 ND ND 0.1 0.02 0.37(*2) • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values *2: Since improvements were made, figures have been below the regulatory level and there have been no problems (see page 17 for information on countermeasures). 27 Water Quality (Water Pollution Control Law, prefectural regulations) Kyoden Plant Category Kyoden Plant Location 20 Kyoden, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Ferrite cores Size Land: 39,000 square meters Premises: 25,000 square meters Completion July 1959 Number of employees 150 pH Regulatory level Actual Average Maximum 5.8–8.6 7.4 7.1–7.7(*1) BOD 160 (120) ND ND Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Number of coliform groups Cadmium 200 (150) ND 10 Lead 5 ND ND 5 ND ND 1 ND 0.01 5 0.2 1.1 10 0.57 2.5 10 0.19 0.89 15 ND ND 3000 ND ND 0.05 ND ND 0.1 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law, prefectural regulations) Minami Plant Category pH Regulatory level Actual Average Maximum 5.8–8.6 7.5 7.1–7.9(*1) BOD 160 (120) ND 12 Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Number of coliform groups Cadmium Lead 200 (150) ND 44 5 ND ND 5 ND ND 1 0.01 0.05 5 0.32 1.5 10 0.94 8.1 10 0.11 0.37 15 ND ND 3000 410 840 0.05 ND ND 0.1 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 28 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Inakura Plant Drying furnaces (9 units) Kerosene Boilers(*4) (2 units) Location 4-3, Tateishi, Kisakata-machi, Yuri-gun, Akita Prefecture Production Ferrite cores, toner, magnetic film products Size Land: 135,000 square meters Premises: 26,000 square meters Completion July 1982 Number of employees 200 Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 4.32 Nitrogen oxides 230 27 Dust 0.2 0.1 Sulfur oxides 4.13 0.002 Nitrogen oxides 260 55 Dust 0.3 ND 0.003 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subjected to prefectural regulations. Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.0–9.0 7.6 7.1–8.0(*1) BOD 160 (120) ND 5 COD 30 ND 155(*2) Category Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Cadmium Lead 70 ND 14 5 ND ND 5 ND ND 1 0.03 0.71 5 0.23 0.87 10 0.46 3.8 10 0.29 1 15 ND ND 0.05 ND ND 0.1 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values *2: Since improvement were made, figures have been below the regulatory level and there have been no problems. 29 Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Akita Plant Boilers (6 units) Boiler(*4)(1 unit) Location 200 Tachisawa, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Ceramic raw materials Size Land: 65,000 square meters Premises: 36,000 square meters Completion December 1979 Number of employees 960 Diesel engines (2 units) Fuel Substances emitted(*1) Sulfur oxides LPG Nitrogen oxides Dust Sulfur oxides Kerosene Nitrogen oxides Dust Sulfur oxides Grade-A heavy oil Nitrogen oxides Dust Regulatory level(*2) Actual(*3) 1.21 0.009 150 100 0.1 0.02 2.03 0.002 260 69 0.3 ND 10.8 0.045 950 890 0.1 0.03 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subjected to prefectural regulations. Water Quality (Water Pollution Control Law, prefectural regulations) Category pH Regulatory level Actual Average Maximum 5.8–8.6 7.1 6.5–7.7(*1) BOD 30 6.13 20 Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Number of coliform group Residual chlorine Cyanogen Lead 1.1.1. Trichloroethane Trichloroethylene Tetrachloroethylene Dichloromethane 70 5.02 6 5 1 1 0.5 0.1 0.1 1 0.01 0.03 5 0.14 0.69 10 0.09 0.31 10 0.02 0.06 15 0.2 0.2 3000 33.25 43 – 0.1 0.2 0.1 0.02 0.02 0.1 0.01 0.04 3 0.001 0.001 0.3 0.001 0.001 0.1 0.001 0.001 0.2 0.02 0.02 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 30 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Shusekibuhin Plant Facility Fuel Boiler (1 unit) Sulfur oxides Grade-A heavy oil Nitrogen oxides Dust Substances emitted(*1) Regulatory level(*2) Actual(*3) 4.2 0.013 260 60 0.3 0.01 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 96-1 Maeda, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Plating of electronic components Size Land: 27,000 square meters Premises: 18,000 square meters Completion October 1991 Number of employees (Included in Akita Plant) Water Quality (Water Pollution Control Law, prefectural regulations) Category pH Regulatory level Actual Average Maximum 5.8–8.6 6.8 6.0–7.4(*1) BOD 30 5.7 13 Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Fluorine Number of coliform groups Residual chlorine Lead 1.1.1. Trichloroethane Trichloroethylene Tetrachloroethylene Dichloromethane 70 5.29 18 5 1 1 0.5 0.1 0.1 1 0.02 0.07 5 0.06 0.57 10 0.08 0.3 10 0.03 0.07 0.2 15 0.2 3000 45 120 – 0.2 0.4 0.1 0.01 0.01 3 0.001 0.001 0.3 0.001 0.001 0.1 0.001 0.001 0.2 0.02 0.02 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 31 Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Kotoura Plant Boiler (1 unit) Boilers(*4) (2 units) Location 38 Furusato, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Ceramic raw materials Size Land: 26,000 square meters Premises: 17,000 square meters Completion March 1953 Number of employees 120 Fuel LPG Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides Nitrogen oxides Dust Sulfur oxides Nitrogen oxides Dust 0.995 0.003 150 76 0.1 0.01 2.06 0.005 250 71 0.3 0.01 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subjected to prefectural regulations. Water Quality (Water Pollution Control Law, prefectural regulations) Kotoura SD Plant Category pH Regulatory level Actual Average Maximum 5.8–8.6 7.3 6.5–7.8(*1) BOD 30 5.53 22 Suspended matter Hexane extracts Phenol Copper Zinc Soluble manganese Fluorine Number of coliform groups Residual chlorine Lead 1.1.1. Trichloroethane Trichloroethylene Tetrachloroethylene Dichloromethane 70 5 5 5 1.3 2.2 0.5 0.1 0.1 1 0.01 0.03 5 0.03 0.09 10 0.02 0.08 0.2 15 0.2 3000 63.75 100 – 0.05 0.05 0.01 0.1 0.01 3 0.001 0.001 0.3 0.001 0.001 0.1 0.001 0.001 0.2 0.02 0.02 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law, prefectural regulations) Kotoura Plant Category pH Regulatory level Actual Average Maximum 5.8–8.6 7.4 6.8–7.8(*1) BOD 30 5.25 12 Suspended matter Hexane extracts Phenol Copper Zinc Soluble manganese Fluorine Number of coliform groups Residual chlorine Lead 1.1.1. Trichloroethane Trichloroethylene Tetrachloroethylene Dichloromethane 70 5.22 11 5 1.35 1.8 0.5 0.1 0.1 1 0.01 0.04 5 0.07 0.39 10 0.03 0.09 0.2 15 0.2 3000 22.5 30 – 0.1 0.2 0.01 0.1 0.01 3 0.001 0.001 0.3 0.001 0.001 0.1 0.001 0.001 0.2 0.02 0.02 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 32 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Kisakata Plant Heaters (2 units) Boilers (2 units) Location 1-1 Okinoda, Kisakata-machi, Yuri-gun, Akita Prefecture Production Coils, machinery Size Land: 48,000 square meters Premises: 19,000 square meters Completion December 1959 Number of employees 480 Boilers(*4) (2 units) Fuel Substances emitted(*1) Sulfur oxides Grade-A heavy oil Nitrogen oxides Dust Sulfur oxides Grade-A heavy oil Nitrogen oxides Dust Sulfur oxides Kerosene Nitrogen oxides Dust Regulatory level(*2) Actual(*3) 0.711 0.006 180 68 0.3 ND 0.494 0.009 180 74 0.3 ND 2.28 ND 260 60 0.3 ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subjected to prefectural regulations. Water Quality (Water Pollution Control Law, prefectural regulations) Category pH Regulatory level Actual Average Maximum 5.8–8.6 7.4 6.3–8.1(*1) BOD 30 ND ND Suspended matter Hexane extracts Phenol Copper Zinc Soluble iron Soluble manganese Total chromium Fluorine Cyanogen Lead 70 ND ND 5 1 1 5 ND ND 1 0.01 0.05 5 0.13 0.89 10 0.61 5.4 10 0.05 0.46 2 ND ND 15 ND ND 0.1 ND ND 0.1 0.01 0.04 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 33 Atmosphere (Atmosphere Pollution Control Law, prefectural regulations) Facility Narita Plant, A and C areas Cool and hot-water generator Kerosene (1 unit) Incinerator (1 unit) Location 570-2 Matsugashita, Minamihadori, Narita City, Chiba Prefecture Production Metal magnets, composite magnetic materials, magnet application products, power supply products, advanced information-network products, metal magnetic materials Size Land: 79,000 square meters Premises: 49,000 square meters Completion August 1978 Number of employees 740 Fuel Waste Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 2.3 ND Nitrogen oxides 180 51 Dust – 0.01 Sulfur oxides 0.875 0.04 Nitrogen oxides 250 75 Dust 0.5 0.19 Hydrogen chloride 700 177 • 1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3, Hydrogen chloride: mg/Nm3 • 2: Regulatory level values are based on the most severe value in the target facility. • 3: Actual figures are the highest figure in the year for the target facility. Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.9 7.5–8.3(*1) BOD 20 0.7 1.4 COD 160 (120) 1.6 5.9 Suspended matter 40 ND 6 Hexane extracts 3 ND ND Phenol 0.5 ND ND Copper 1 ND ND Category Zinc 1 ND ND Soluble iron 5 ND 0.7 Soluble manganese 5 ND ND Total chromium 0.5 ND ND Fluorine 10 ND ND Number of coliform groups 3000 ND ND Cadmium 0.01 ND ND Cyanogen ND ND ND Lead 0.1 ND ND Hexavalent chromium 0.05 ND ND Arsenic 0.05 ND ND Total mercury 0.0005 ND ND 1.1.1. Trichloroethane 3 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND Selenium 0.1 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 34 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Fuel Narita Plant, B area Roasting furnaces (2 units) LPG Location 570-1 Matsugashita, Minamihadori, Narita City, Chiba Prefecture Production Ferrite cores, microwave devices Size Land: 53,000 square meters Premises: 16,000 square meters Completion December 1980 Number of employees 310 Refine reaction tower (1 unit) Waste gas incinerator (1 unit) Hydrogen Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides – ND Nitrogen oxides 220 119 Dust 0.15 0.062 Hydrogen chloride 80 76 Sulfur oxides – ND Nitrogen oxides – ND Dust – 0.002 Hydrogen chloride 80 8 Sulfur oxides – ND Nitrogen oxides 150 77 Dust 0.1 0.016 Hydrogen chloride 80 14 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3, Hydrogen chloride: mg/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.2 6.9–7.8(*1) BOD 20 0.7 1.4 COD 160 (120) 1.5 2.1 Suspended matter 40 ND 1 Category Hexane extracts 3 ND ND Phenol 0.5 ND ND Copper 1 ND 0.03 Zinc 1 ND ND Soluble iron 5 ND 0.1 Soluble manganese 5 ND 0.9 Total chromium 0.5 ND ND Fluorine 10 ND ND Number of coliform groups 3000 ND ND Cadmium 0.01 ND ND Cyanogen ND ND ND Lead 0.1 ND ND Hexavalent chromium 0.05 ND ND Arsenic 0.05 ND ND Total mercury 0.0005 ND ND 3 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND Selenium 0.1 ND ND 1.1.1. Trichloroethane • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 35 Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Technical Center Location 2-15-7 Higashi Owada, Ichikawa City, Chiba Prefecture Development Center Size Land: 33,000 square meters Premises: 51,000 square meters Completion September 1960 Number of employees 910 Boilers (5 units) Fuel City Gas Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.36 Nitrogen oxides 150 79 Dust 0.1 0.001 ND Note: *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Water Quality (Sewage Law, city regulations) Regulatory level Actual Average Maximum pH 5.0–9.0 7.3 6.8–7.8(*1) BOD 600 5 21 Suspended matter 600 3.6 5.2 Hexane extracts 5 ND ND Category Copper 1 0.01 0.02 Zinc 3 0.1 1.6 Soluble iron 5 0.02 0.12 Soluble manganese 5 ND 0.02 Nitrogen 60 2 4.4 Phosphorus 8 1 2.13 Cadmium 0.01 ND ND Lead 0.1 ND ND 1.1.1. Trichloroethane 3 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law) Facility Kofu Plant Boilers (3 units) Fuel LPG Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 2.87 Nitrogen oxides 150 120 Dust 0.1 ND ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 160 Miyazawa, Kosai-cho, Nakakoma-gun, Yamanashi Prefecture Production Various types of recording heads Size Land: 93,000 square meters Premises: 35,000 square meters Completion June 1982 Number of employees 560 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.2 6.9–7.4(*1) BOD 30 (20) 4.7 7.8 COD 30 (20) 4.6 9.7 Suspended matter 50 (30) 1.6 3.9 Hexane extracts 10 0.5 0.5 Category Copper 1 0.05 0.05 Zinc 1 0.064 0.14 Soluble iron 1 0.109 0.32 Soluble manganese 1 0.058 0.1 Fluorine 1 0.2 0.2 Number of coliform groups 1000 ND ND Lead 0.1 0.05 0.05 1.1.1. Trichloroethane 3 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 36 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law) Facility Chikumagawa Plant Boilers (2 units) Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 18 Grade-A heavy oil Nitrogen oxides Dust 0.2 150 120 0.25 0.013 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 113 Nenei, Saku City, Nagano Prefecture Production Optical disks Size Land: 110,000 square meters Premises: 54,000 square meters Completion December 1969 Number of employees 670 Water Quality (Water Pollution Control Law, city regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.7 7.4–7.9(*1) BOD 20 1.2 2.8 COD 60 4.1 4.7 Suspended matter 40 1.7 4 Hexane extracts 5 ND ND Phenol 5 ND ND Category Copper 3 ND ND Zinc 5 0.04 0.05 Soluble iron 10 ND 0.2 Soluble manganese 10 ND ND Total chromium 2 ND ND Fluorine 15 0.12 0.13 Number of coliform groups 3000 9 58 Total nitrogen 120 16 23 Total phosphorus 16 0.9 1.8 Cadmium 0.05 ND ND Cyanogen 0.5 ND ND Lead 0.1 ND ND Hexavalent chromium 0.3 ND ND Arsenic 0.1 ND ND Total mercury 0.003 ND ND 1.1.1. Trichloroethane 3 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND Selenium 0.1 ND ND Benzene 0.1 ND ND Carbon tetrachloride 0.02 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 37 Atmosphere (Air Pollution Control Law) Facility Chikumagawa 1st Technical Center Boiler (1 unit) Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 14 Grade-A heavy oil Nitrogen oxides Dust 0.14 180 69 0.3 0.013 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 462-1 Otai, Saku City, Nagano Prefecture Development Center Size Land: 74,000 square meters Premises: 16,000 square meters Completion November 1983 Number of employees 110 Water Quality (Water Pollution Control Law, city regulations) Regulatory level Actual Average Maximum pH 6.0–8.5 7.7 7.5–7.9(*1) BOD 20 1.7 3.8 Suspended matter 40 2.3 6 Hexane extracts 5 ND ND Number of coliform groups 3000 9 47 Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law, city regulations) Chikumagawa 2nd Technical Center Location 543 Otai, Saku City, Nagano Prefecture Production Thin-film heads Size Land: 95,000 square meters Premises: 13,000 square meters Completion June 1986 Number of employees 420 Regulatory level Actual Average Maximum pH 6.0–8.5 7.2 7.0–7.9(*1) BOD 20 3.14 8.3 Suspended matter 40 6 2.9 Hexane extracts 5 1 1 Phenol 5 0.02 0.02 Copper 3 0.06 0.14 Soluble iron 10 0.2 0.2 Fluorine 15 0.2 0.36 Number of coliform groups 3000 6.67 44 Cadmium 0.1 0.005 0.005 Category Cyanogen 1 0.1 0.1 Lead 0.1 0.01 0.01 Hexavalent chromium 0.5 0.02 0.02 Arsenic 0.1 0.01 0.01 Total mercury 0.005 0.0005 0.0005 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 38 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Shizuoka Plant Fuel Calcination furnace (3 units) Kerosene Calcination furnace (1 units) LPG Location 31-1 Megami, Sagara-cho, Haibara-gun, Shizuoka Prefecture Production Ferrite magnets Size Land: 58,000 square meters Premises: 21,000 square meters Completion May 1970 Number of employees 260 Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 4.48 Nitrogen oxides 220 130 Dust 0.15 0.04 Sulfur oxides 4.48 0.03 Nitrogen oxides 220 96 Dust 0.15 ND 0.09 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Water Quality (Water Pollution Control Law, Pollution Control Agreement) Regulatory level Actual Average Maximum pH 5.8–8.6 7.3 7.0–8.0(*1) BOD 25 (20) 2 6 COD 160 (120) 9 18 Suspended matter 40 (30) 2 15 Hexane extracts 5 0.6 0.7 Soluble iron 10 0.14 0.24 Number of coliform groups 3000 30 30 Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law) Regulatory level Actual Average Maximum pH 5.8–8.6 7.4 7.1–7.6(*1) BOD 160 (120) 8 17 COD 160 (120) 64 87 Category Shizunami Plant Location 712-1 Hosoe, Haibara-cho, Haibara-gun, Shizuoka Prefecture Production Ferrite magnets Size Land: 17,000 square meters Premises: 8,000 square meters Completion April 1979 Number of employees 160 Suspended matter 200 (150) 4 11 Hexane extracts 5 1.4 1.4 Soluble iron 10 0.02 0.02 Number of coliform groups 3000 60 60 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law, Pollution Control Agreement) Regulatory level Actual Average Maximum pH 5.8–8.6 7.4 7.1–8.0(*1) BOD 160 (120) 1 3 Suspended matter 40 (30) 2 5 Hexane extracts 5 2.1 3.3 Soluble iron 10 0.08 0.15 Number of coliform groups 3000 ND ND Category Sagara Plant Location 117-1 Shirai, Sagara-cho, Haibara-gun, Shizuoka Prefecture Production Ferrite magnets Size Land: 32,000 square meters Premises: 8,000 square meters Completion August 1984 Number of employees 80 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 39 Atmosphere (Air Pollution Control Law, Pollution Control Agreement) Facility Mikumagawa Plant Boilers (2 units) EGI(*4) (2 units) Location 3-793-1 Ishi-machi, Hita City, Oita Prefecture Production Video and audio tapes Size Land: 100,000 square meters Premises: 33,000 square meters Completion May 1982 Number of employees 340 Incinerator Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 2 Grade-A heavy oil Nitrogen oxides Organic solvent gas Grade-A heavy oil Waste 0.15 200 180 Dust 0.1 0.001 Sulfur oxides – 0.27 Nitrogen oxides 200 65 Dust – 0.002 Sulfur oxides 0.2 0.04 Nitrogen oxides 200 33 0.2 0.05 200 14 Grade-A heavy oil Dust Hydrogen chloride *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3. Hydrogen chloride: mg/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: EGI is a device to remove foul smell, installed in accordance with Pollution Control Agreement with Hita City. Water Quality (Water Pollution Control Law, Pollution Control Agreement) Regulatory level Actual Average Maximum pH 5.8–8.6 7.8 7.4–8.1(*1) BOD 120 1.2 14 Suspended matter 150 3.12 23 Hexane extracts 5 0.5 0.5 Number of coliform groups 3000 41 860 Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 40 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Ujo TDK Corp. Boiler (*4) (1 unit) Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.899 Nitrogen oxides 180 85 Dust 0.3 ND ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3. *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subject to prefectural regulations. Location 50 Kamota, Ushiroseki, Midarehashi, Showa-machi, Minamiakita-gun, Akita Prefecture Production Multilayer chip capacitors, Medium and high voltage capacitors Size Land: 16,000 square meters Premises: 4,000 square meters Completion October 1968 Number of employees 160 Water Quality (Water Pollution Control Law) Regulatory level Actual Average Maximum pH 5.8–8.6 6.8 6.7–6.9(*1) BOD 160 (120) 7.8 7.8 COD 160 (120) 4.5 4.5 Suspended matter 200 (150) 8 10 Hexane extracts 5 ND ND Category Number of coliform groups 3000 153 270 Lead 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Ouchi TDK Corp. Boilers (*4) (3 units) Fuel Kerosene Cool and hot-water generator Kerosene (3 units) Location 146-1 Haraikawa, Sankawa, Ouchi-machi, Yuri-gun, Akita Prefecture Production Multilayer chip devices Size Land: 42,000 square meters Premises: 13,000 square meters Completion January 1970 Number of employees 430 Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 1.51 Nitrogen oxides 260 65 Dust 0.3 0.01 Sulfur oxides 1.58 0.003 Nitrogen oxides 260 44 Dust 0.3 0.01 0.004 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3. *2: Regulatory level values are based on the most severe value in the target facility.*3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subject to prefectural regulations. Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 6.8 6.6–7.3(*1) BOD 30 7.3 11 Suspended matter 70 6.5 10 Hexane extracts 5 1 1 Phenol 0.5 0.01 0.01 Copper 1 0.03 0.05 Zinc 5 0.16 0.27 Soluble iron 10 0.28 0.53 Soluble manganese 10 0.06 0.11 Number of coliform groups 3000 23.75 65 Lead 0.1 0.01 0.01 Arsenic 0.1 0.01 0.01 Dichloromethane 0.2 0.02 0.02 Phosphorus 16 0.64 1.3 Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 41 Atmosphere (Air Pollution Control Law, prefectural regulations) Facility TDK-MCC Corp. Boilers(*4) (14 units) Fuel Kerosene Refrigerating machines (3 units) Kerosene Location 151 Maeda, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Multilayer chip devices Size Land: 34,000 square meters Premises: 12,000 square meters Completion June 1971 Number of employees 750 Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.853 Nitrogen oxides 180 91 Dust 0.3 ND Sulfur oxides 0.934 ND Nitrogen oxides 180 59 Dust 0.3 ND ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3. *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subject to prefectural regulations. Water Quality (Water Pollution Control Law) Regulatory level Actual Average Maximum pH 5.8–8.6 6.8 6.3–7.3(*1) BOD 160 (120) 30.7 62 Suspended matter 200 (150) 17.6 39 Hexane extracts 5 ND ND Copper 3 0.03 0.04 Soluble iron 10 0.7 1.9 Soluble manganese 10 0.1 0.27 Total chromium 2 ND ND Category Number of coliform groups 3000 412.5 860 Lead 0.1 ND ND Hexavalent chromium 0.5 ND ND 1.1.1. Trichloroethane 3 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.0 6.6–7.3(*1) BOD 30 14 28 Suspended matter 70 12 28 Copper 1 0.06 0.21 Zinc 5 ND 0.01 Soluble iron 10 0.4 1 Total chromium 2 0.02 0.23 Fluorine 15 1.54 3 Category Iwaki Kogyo Corp. Location 16-2 Tamachi, Kameda-machi, Kameda, Iwaki-machi, Yuri-gun, Akita Prefecture Production NEO magnets, chip capacitors Size Land: 9,000 square meters Premises: 4,000 square meters Completion July 1972 Number of employees 90 42 Cyanogen 0.1 ND ND Lead 0.1 ND 0.01 Hexavalent chromium 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Kisakata TDK Corp. Boilers(*4) (2 units) Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.868 Nitrogen oxides 180 73 Dust 0.3 ND ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subject to prefectural regulations. Location 100 Budojima, Kisakata-machi, Yuri-gun, Akita Prefecture Production High-voltage capacitors, ring varistors Size Land: 37,000 square meters Premises: 10,000 square meters Completion September 1972 Number of employees 300 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.4 6.7–8.1(*1) BOD 30 5.3 9 Suspended matter 70 5.29 7 Hexane extracts 5 ND ND Copper 1 0.02 0.06 Soluble iron 10 0.13 0.22 Number of coliform groups 3000 22.5 30 Lead 0.1 0.01 0.04 Dichloromethane 0.2 ND ND Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Voluntary measurement) Actual Average Maximum pH 7.2 5.8–7.6(1*) BOD 9.82 31 Suspended matter 23.77 170 Hexane extracts 1 1 Category Fuji Kogyosho Corp. Location 167 Denkakumori, Hirasawa, Nikaho-machi, Yuri-gun, Akita Prefecture Production Line filters, SF coils, TF coils Size Land: 3,000 square meters Premises: 1,000 square meters Completion November 1972 Number of employees 70 Regulatory level Copper 0.02 0.02 Zinc 0.07 0.07 Soluble iron 0.03 0.03 Soluble manganese 0.03 0.03 Number of coliform groups 30 30 Lead 0.03 0.16 Total mercury 0.0005 0.0005 Dichloromethane 0.02 0.02 * Unit: mg per liter, apart from pH * ND means below the volume that can be detected. * pH: hydrogen ion exponent * BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 43 Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Konoura TDK Corp. Boilers (*4) (4 units) Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.945 Nitrogen oxides 180 91 Dust 0.3 ND ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. *4: Kerosene boilers are subject to prefectural regulations. Location 130 Juninomae, Konoura, Konoura-machi, Yuri-gun, Akita Prefecture Production High-frequency coils, high-frequency superposition module Size Land: 25,000 square meters Premises: 7,000 square meters Completion December 1974 Number of employees 570 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 6.8 6.6–7.0(*1) BOD 120 7.3 12 Suspended matter 200 47.5 92 Hexane extracts 5 ND ND Category Copper 2 0.015 0.03 Zinc 5 0.2 0.27 Number of coliform groups 3000 165 230 Cadmium 0.1 ND ND Cyanogen 0.1 ND ND Lead 1 ND ND Arsenic 0.5 ND ND Total mercury 0.05 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Yuzawa TDK Corp. Boilers (2 units) Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 2.27 Grade-A heavy oil Nitrogen oxides Dust 0.058 260 59 – ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3. *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 8-7 Kitsunezaki, Iwasaki, Yuzawa City, Akita Prefecture Production Multilayer chip products, ferrite chip beads, Microchip filters Size Land: 21,000 square meters Premises: 1,000 square meters Completion February 1985 Number of employees 280 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.0 7.0–7.0(*1) BOD 60 8.1 8.1 COD 60 11 11 Category Suspended matter 120 8 8 Hexane extracts 5 1 1 Copper 1 0.06 0.06 Zinc 5 0.13 0.13 Soluble iron 10 0.09 0.09 Soluble manganese 10 0.03 0.03 Number of coliform groups 3000 12 12 Lead 0.1 0.01 0.01 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 44 Data of Environmental Burden at Major TDK Facilities Water Quality (Water Pollution Control Law) Honjo 1st Plant TDK Akita Components Corp. Honjo Plant Location 16-57 Yamanokami, Ishiwaki, Honjo City, Akita Prefecture Production DC/DC converters, NTC thermistors Size Land: 47,000 square meters Premises: 7,000 square meters Completion July 1973 Number of employees 400 Regulatory level Actual Average Maximum pH 5.8–8.6 6.6 6.3–6.9(*1) BOD 160 (120) 8.6 11 Suspended matter 200 (150) 9.5 16 Hexane extracts 5 ND ND Category Number of coliform groups 3000 15 30 Lead 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Water Pollution Control Law) Honjo 2nd Plant Regulatory level Actual Average Maximum pH 5.8–8.6 6.3 6.0–6.6(*1) BOD 160 (120) 21 35 Suspended matter 200 (150) 10.5 17 Hexane extracts 5 2 3 Category Number of coliform groups 3000 126 180 Lead 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law, prefectural regulations) Facility TDK Akita Components Corp. Yashima Plant Boilers (4 units) Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.393 0.009 260 79 0.3 0.01 Grade-A heavy oil Nitrogen oxides Dust *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 175 Okawara, Motomachi, Yashima-cho, Yuri-gun, Akita Prefecture Production EMC products, SA sensor products Size Land: 15,000 square meters Premises: 7,000 square meters Completion June 1973 Number of employees 410 Water Quality (Water Pollution Control Law) Regulatory level Actual Average Maximum pH 5.8–8.6 6.7 6.2–7.2(*1) BOD 160 (120) 23.5 42 Suspended matter 200 (150) 11 17 Hexane extracts 5 ND ND Category Number of coliform groups 3000 15 30 Lead 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 45 Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Yuza TDK Corp. Boiler (1 unit) Fuel Kerosane Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.513 Nitrogen oxides 180 58 Dust 0.3 ND ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 18-1 Maeda, Oaza Yuza-machi, Yuza-machi, Akumi-gun, Yamagata Prefecture Production Ceramic resonators, ceramic filters Size Land: 22,000 square meters Premises: 8,000 square meters Completion February 1968 Number of employees 260 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 6.9 6.6–7.2(*1) BOD 25 3.4 4.9 COD 160 (120) 5 8.5 Suspended matter 60 9 12 Hexane extracts 5 ND ND Category Number of coliform groups 3000 46 62 Lead 0.1 ND ND Trichloroethylene 0.3 ND ND Tetrachloroethylene 0.1 ND ND Dichloromethane 0.2 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Tsuruoka TDK Corp. Boilers (4 units) Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 1.12 Nitrogen oxides 180 73 Dust 0.3 0.02 ND *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3. *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 97 Aburada, Oaza Yamada, Tsuruoka City, Yamagata Prefecture Production NL coils, SWRG power supply Size Land: 49,000 square meters Premises: 13,000 square meters Completion September 1968 Number of employees 590 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 7.3 7.0–7.5(*1) BOD 160 (120) 9.15 23.4 COD 160 (120) 10.7 12.9 Suspended matter 200 (150) 8.45 21 Hexane extracts 5 0.78 1.3 Category Copper 3 0.025 0.03 Zinc 5 0.29 0.55 Soluble iron 10 0.45 0.72 Soluble manganese 10 0.18 0.29 Number of coliform groups 3000 275 1100 Cadmium 0.1 ND ND Cyanogen 1 ND ND Lead 0.1 ND ND Hexavalent chromium 0.5 ND ND Arsenic 0.1 ND ND Total mercury 0.005 ND ND 1.1.1. Trichloroethane 3 ND ND Dichloromethane 0.2 0.064 0.096 • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 46 Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law, prefectural regulations) Facility Sakata TDK Corp. Boiler (1 unit) Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.43 Nitrogen oxides 180 62 Dust 0.3 ND 0.005 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 99-19 Meiji, Oaza Miyaumi, Sakata City, Yamagata Prefecture Production Chip inductors, common mode filters Size Land: 17,000 square meters Premises: 8,000 square meters Completion September 1981 Number of employees 250 Water Quality (Water Pollution Control Law, prefectural regulations) Regulatory level Actual Average Maximum pH 5.8–8.6 6.5 5.9–7.0(*1) BOD 160 (120) 3.55 4.1 Suspended matter 200 (150) 3.9 6.8 Hexane extracts 5 0.7 0.8 Zinc 5 0.06 0.07 Soluble iron 10 0.095 0.11 Soluble manganese 5 0.08 0.11 Number of coliform groups 3000 360 500 Lead 0.1 ND ND Total mercury 0.005 ND ND Dichloromethane 0.2 ND ND Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law, Pollution Control Agreement) Facility TDK Micro Device Corp. Cool and hot-water generator Kerosene (1 unit) Boiler (1 unit) Location 644-55 Hitana, Nakago-cho, Kitaibaraki City, Ibaraki Prefecture Production Multilayer chip inductors Size Land: 108,000 square meters Premises: 10,000 square meters Completion January 1993 Number of employees 60 Fuel Kerosene Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 5.63 Nitrogen oxides 180 59 Dust 0.3 0.001 Sulfur oxides 5.41 ND Nitrogen oxides 180 59 Dust 0.3 0.001 ND *1: Units: Sulfur oxides: Nm3/h. Nitrogen oxides: ppm. Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Water Quality (Water Pollution Control Law, Pollution Control Agreement) Regulatory level Actual Average Maximum pH 5.8–8.6 7.4 6.5–7.9(*1) BOD 25 (20) 3.6 19.2 COD 25 (20) 3.8 6.6 Suspended matter 40 (30) ND 21 Hexane extracts 5 ND ND Category Copper 3 ND ND Zinc 5 ND 0.1 Soluble iron 10 ND 0.2 Soluble manganese 10 ND ND Fluorine 8 ND ND Number of coliform groups 3000 2 24 Lead 0.1 ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 47 Water Quality (Voluntary measurement) Actual Average Maximum pH 7.2 7.0–7.4(*1) BOD 7.5 10.5 COD 8.1 10.9 Suspended matter 7 7 Hexane extracts ND ND Category Toso TDK Corp. Location 10 Midoridaira, Yokaichiba City, Chiba Prefecture Production Dielectric filters, isolators, metal magnets Size Land: 16,000 square meters Premises: 5,000 square meters Completion April 1985 Number of employees 120 Regulatory level • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Water Quality (Voluntary measurement) Actual Average Maximum pH 6.8 6.6–7.6(*1) BOD 12.1 28 COD 14.8 27 Suspended matter 13.3 41 Number of coliform groups 88.8 260 Lead ND ND Category Kofu TDK Corp. Location 1955-1 Tokoji-cho, Kofu City, Yamanashi Prefecture Production Magnetic heads Size Land: 12,000 square meters Premises: 5,000 square meters Completion April 1962 Number of employees 140 Regulatory level 1.1.1. Trichloroethane ND ND Trichloroethylene ND ND Dichloromethane ND ND • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Atmosphere (Air Pollution Control Law) Facility Media Technology Corp. Boilers (3 units) Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 1.93 Grade-A heavy oil Nitrogen oxides Dust 0.09 180 130 0.15 0.004 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 801 Nakadate, Tamaho-cho, Nakakoma-gun, Yamanashi Prefecture Production Video tapes for private use, tapes for data back-ups and broadcasting services Size Land: 29,000 square meters Premises: 11,000 square meters Completion October 1991 Number of employees 250 48 Water Quality (Voluntary measurement) Actual Average Maximum pH 7.3 6.5–8.0(*1) BOD 126 214 Suspended matter 12 22.4 Hexane extracts 2.7 7 Category Regulatory level • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values Data of Environmental Burden at Major TDK Facilities Atmosphere (Air Pollution Control Law) Facility Iida TDK Corp. Boilers (2 units) Fuel Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 0.8 Grade-A heavy oil Nitrogen oxides Dust 0.03 180 87 0.3 0.005 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3 *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility. Location 7659 Myo, Matsuo, Iida City, Nagano Prefecture Production ELF coils, NL wire-wound chip inductors Size Land: 19,000 square meters Premises: 7,000 square meters Completion December 1966 Number of employees 170 Water Quality (Sewage Law, city regulations) Regulatory level Actual Average Maximum pH 5.7–8.7 8.5 8.5–8.5(*1) BOD 300 58 58 Suspended matter 300 44 44 Hexane extracts 30 5.1 5.1 Lead 0.1 ND ND Dichloromethane 0.2 ND ND Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand *1: Minimum and maximum pH values 49 Atmosphere Facility Fuel Korea TDK Co., Ltd. Incinerator (1 unit) Location 670, Kasan-dong, Gumchon-ku, Seoul, Republic of Korea Production Ferrite cores Size Land: 16,000 square meters Premises: 20,000 square meters Completion May 1973 Number of employees 510 Waste Substances emitted(*1) Regulatory level(*2) Actual(*3) Sulfur oxides 300 Nitrogen oxides 200 68.32 Dust 0.1 0.031 Carbon monoxide 600 123.89 Hydrochloric acid 50 1.56 Chlorine 60 0.32 56.77 *1: Units: Sulfur oxides: Nm3/h, Nitrogen oxides: ppm, Dust: g/Nm3, Carbon monoxide, Hydrochloric acid, Chlorine: ppm. *2: Regulatory level values are based on the most severe value in the target facility. *3: Actual figures are the highest figure in the year for the target facility Water Quality Regulatory level Actual Average Maximum pH 5.8–8.6 7.0 6.5–7.7(*1) COD 130 6.75 20.79 Suspended matter 120 13.3 19.4 Hexane extracts 5 1.4 2.4 Anionic surfactant 5 0.1 0.13 Category • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values Water Quality TDK (Thailand) Co., Ltd. Rojana Plant Location Rojana Industrial Park 1/62 Moo 5. Rojana Road, Tambol Kanham, Amphur Uthai, Ayutthaya, 13210, Thailand Production Audio tapes, metal magnets, chip capacitors Size Land: 104,000 square meters Premises: 16,000 square meters Completion November 1991 Number of employees 930 Regulatory level Actual Average pH 5.0–9.0 7.3 7.1–7.5(*1) COD 1250 85.45 119.7 BOD 1000 31.5 55.5 Soluble matter 2000 787 918 Suspended matter 200 9.8 14.6 Phenol substances 1 0.08 0.16 Zinc 5 0.102 0.1215 Chromium 0.5 ND ND Arsenic 0.25 ND ND Copper 1 0.013 0.016 Mercury 0.005 ND ND Cadmium 0.03 ND ND Barium 1 ND ND Selenium 0.02 ND ND Lead 0.2 0.0242 0.0374 Nickel 0.2 ND ND Manganese 5 ND ND Silver 1 ND ND Stannum 1 0.275 0.31 Aluminum 5 ND ND Category Maximum • Unit: mg per liter, apart from pH • ND means below the volume that can be detected. • pH: hydrogen ion exponent • BOD: Biochemical Oxygen Demand • COD: Chemical Oxygen Demand *1: Minimum and maximum pH values 50 Data of Environmental Burden at Major TDK Facilities Water Quality TDK Electronics Corporation California Plant Location Suite 100, 17871 Von Karman Avenue Irvine, CA 92614 U.S.A. Production Audio and video tapes, floppy disks, inductors Size Land: 133,000 square meters Premises: 48,000 square meters Completion September 1965 Number of employees 320 Category Cadmium Regulatory level Actual Average Maximum 0.8 ND ND Chromium 2.5 0.162 0.162 Copper 2 0.02 0.02 Lead 0.6 0.01 0.01 Mercury 0.01 ND ND Nickel 2 0.011 0.011 Silver 0.5 ND ND Zinc 5 2.42 2.42 Fluoride 3 ND ND Phenol 1 ND ND * Unit: mg per liter, apart from pH * ND means below the volume that can be detected. 51