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Komatsu's Environmental and Social Activities Data

Site Data (Japan)  Kanazawa Plant


Year of Establishment 2007
Location Kanazawa, Ishikawa Prefecture
Main Products Ultra-large hydraulic excavators, large presses, medium presses
Site/Green Landscape (1,000 m2) 134/29
Number of employees 777
Date of ISO14001 certification acquisition May 2007
* The number of employees includes those working for Komatsu affiliates on the premises.
* The number of employees as of the end of March 2013.

Major Performance

Environmental impact Energy consumption
Item Actual value Item Actual consumption Converted to calorie equivalents (GJ)
Total CO2 emissions 2,975 t-CO2 Electricity 7,665 MWh 74,529
NOx total amount - kg Heavy oil A 0 kl 0
SOx total amount 0 kg Kerosene 0 kl 0
Total emissions of waste 341 t Light oil 2 kl 58
Amount recycled 341 t Town gas 0 Nkm3 0
Recycling rate 100 % LPG 9 t 460
BOD emissions 137 kg Other   0
COD emissions 852 kg Total   75,046
Wastewater 69,174 m3
* Refer to the Data on Environmental Impact Resulting from Business Activities for details on the methods used to calculate amounts.
* Total emissions of waste are expressed as a composite of the amount recycled (excluding valuables) and the amount disposed.
* Recycling rate is calculated by dividing the amount recycled (including valuables) by the amount generated (including valuables).
* Total emissions of BOD and COD are calculated by multiplying the average concentration by the amount of wastewater.

* The heat energy conversion factor is calculated in keeping with Greenhouse Gas Emission Calculation - Reporting Manual, which is based on the act on Promotion of Global Warming Countermeasures.

Compliance Conditions to Major Regulations

Item Unit Facility Regulated value Actual value
Nitrogen oxides (NOx)   N/A - -
Sulfur oxides (SOx) -      
Soot and dust   N/A - -
Regulated values are in accordance with the Air Pollution Control Law and local regulations.
Item Regulated value according to the Water Pollution Control Law Regulated value Actual value
Maximum Minimum Average
pH 5.8-8.6 5.0-9.0 7.8 6.7 7.2
BOD (Biochemical oxygen demand) 160 mg/l 80 2.0 ND 1.5
COD (Chemical Oxygen Demand) 160 mg/l 80 22.0 1.3 7.1
Suspended solids (SS) 200 mg/l 120 4.0 ND 2.4
Mineral oils 5 mg/l 5 ND ND ND
Copper 3 mg/l 3 ND ND ND
Zinc 2 mg/l 2 ND ND ND
Nitrogen 120 mg/l 120 31.0 ND 11.3
Phosphorus 16 mg/l 16 4.2 0.008 1.52
Cadmium 0.1 mg/l 0.1 ND ND ND
Lead 0.1 mg/l 0.1 ND ND ND
Chromium (VI) 0.5 mg/l 0.5 ND ND ND
Trichloroethylene 0.3 mg/l 0.3 ND ND ND
Tetrachloroethylene 0.1 mg/l 0.1 ND ND ND
Dichloromethane 0.2 mg/l 0.2 ND ND ND
1,1,1-trichloroethane 3 mg/l 3 ND ND ND
* Regulated values are in accordance with the Water Pollution Control Law and local regulations.
* ND ("not detected") indicates a value below the lower limit of detection.
* ND is considered to be the lower limit of detection when calculating the average.
* Other items are confirmed to be below the regulated value.
* Data for the Kanazawa Plant include data for the Kanazawa Dai-ichi, Dai-ni and the Kawakita Plant.