Tochigi Factory
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Address
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19 Matsuyama Cho, Mohka City, Tochigi Prefecture
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Established
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1970
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Main products
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Engine parts, suspension parts, etc.
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Number of employees
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1,545 (as of March 31, 2005)
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Water discharge point
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Kokai River via Gogyo River
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ISO 14001 acquired
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September 1997
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Water Quality
| Item | Unit | Regulation Standards (Incl. Agreed Standards) | Voluntary Regulation Standards | Measurement Results | |
| Maximum (minimum) | Average | ||||
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Hydrogen ion concentration
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pH | 5.8–8.6 | 5.8–8.6 | 7.5 (7.0) | 7.3 |
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Biochemical oxygen demand (BOD)
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mg/L | 25 | 12.5 | 9.9 (4.5) | 7.0 |
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Suspended solids (SS)
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mg/L | 50 | 25 | 14.5 (1.3) | 5.0 |
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Oil content
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mg/L | 5 | 2.5 | 3.5 (Less than 0.5) | 0.9 |
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Phenols
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mg/L | 1 | 0.5 | Less than 0.1 | Less than 0.1 |
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Copper and its compounds
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mg/L | 3 | 1.5 | Less than 0.1 | Less than 0.1 |
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Zinc and its compounds
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mg/L | 5 | 2.5 | 1.7 (Less than 0.1) | 0.66 |
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Soluble iron and its compounds
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mg/L | 3 | 1.5 | 2.2 (Less than 0.1) | 0.30 |
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Soluble manganese and its compounds
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mg/L | 3 | 1.5 | 0.03 (0.02) | 0.025 |
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Total chromium
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mg/L | 2 | 1 | Less than 0.01 | Less than 0.01 |
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Fluorine content
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mg/L | 8 | 4 | 0.1 (Less than 0.01) | 0.05 |
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Colon bacillus colony count
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No./cm3 | 3,000 | 1,500 | 11 (0) | 2.2 |
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Nitrogen content
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mg/L | 120 | 60 | 12 (11) | 11.5 |
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Phosphorous content
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mg/L | 16 | 8 | 0.09 (Less than 0.01) | 0.05 |
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Cadmium and its compounds
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mg/L | 0.1 | 0.05 | Less than 0.01 | Less than 0.01 |
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Cyanides
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mg/L | 1 | 0.5 | Less than 0.1 | Less than 0.1 |
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Lead and its compounds
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mg/L | 0.2 | 0.1 | Less than 0.01 | Less than 0.01 |
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Chromium (VI) compounds
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mg/L | 0.1 | 0.05 | Less than 0.05 | Less than 0.05 |
Air Quality
| Item | Unit | Regulation Standards (Incl. Agreed Standards) | Regulation Values of Japan | Measurement Results | |
| Maximum (minimum) | Average | ||||
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Particulates
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g/Nm3 | 0.3 | 0.15 | Less than 0.006 (Less than 0.001) | Less than 0.006 |
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Nitrogen oxides
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ppm | 180 | 135 | 96 (37) | 92 |
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Sulphur oxides
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K value | 8 | 4 | Less than 0.46 (Less than 0.005) | Less than 0.36 |
PRTR Listed Substances
(Unit:
kg)
| Substance | Volume Handled | Volume Discharged | Volume Transferred | Recycling | Volume 100 Disposed | Volume Consumed (Transferred to Products) | ||
| Atmosphere | Public Waters | Sewage | Waste Disposal Sites Outside Company |
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Soluble zinc compounds
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10,020 | 0 | 20 | 0 | 10,000 | 0 | 0 | 0 |
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Total
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10,020 | 0 | 20 | 0 | 10,000 | 0 | 0 | 0 |
