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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 703
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 2015.

Major Performance

Environmental impact Energy consumption
Item Actual value Item Actual consumption Converted to calorie equivalents (GJ)
Total CO2 emissions 1,467 t-CO2 Electricity 3,758 MWh 36,643
NOx total amount - kg Heavy oil A 0 kl 0
SOx total amount 0 kg Kerosene 0 kl 0
Total emissions of waste 144 t Light oil 2 kl 78
Amount recycled 144 t Town gas 0 Nkm3 0
Recycling rate 100 % LPG 6 t 310
BOD emissions 72 kg Other   0
COD emissions 339 kg Total   37,031
Wastewater 71,854 m3
Output of in-house power generation 618 MWh
Water consumption
Item Actual value
Groundwater 64,481 m3
Industrial water 0 m3
Supply water 7,373 m3
Total 71,854 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 6.5 7.1
BOD (Biochemical oxygen demand) 160 mg/l 80 1 ND 0.8
COD (Chemical Oxygen Demand) 160 mg/l 80 13 1.06 3.4
Suspended solids (SS) 200 mg/l 120 5.8 1.0 3,4
Mineral oils 5 mg/l 5 ND ND ND
Copper 3 mg/l 3 ND ND ND
Zinc 2 mg/l 2 0.08 ND 0.1
Nitrogen 120 mg/l 120 43 0.7 21.9
Phosphorus 16 mg/l 16 4.8 0.03 2.42
Cadmium 0.03 mg/l 0.03 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 0.006 ND 0.004
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 and Dai-ni Plant.