Environmental Performance Data

Third-party verification completed Osaka Gas underwent a third party verification by Bureau Veritas Japan Co., Ltd.

Aspects Determined as Materiality
  • Escape to the atmosphere

    305-5

Environmental Policy

Environmental Policy

Boundery:No. of Affiliated Companies* of which data compiled

FY2016 FY2017 FY2018 FY2019 FY2020
69 65 59 57 59
*Affiliated Companies

Of Osaka Gas’s 156 consolidated subsidiaries, 57 are subject to the calculation. The others are companies whose environmental effects are minimal and whose environmental data are difficult to grasp. They are housed in Osaka Gas office buildings as tenants or are foreign companies not subject to such calculation. One overseas subsidiary was added that is subject to energy use and GHG calculations. However, the aggregate number of companies may differ by fiscal year due to company mergers, etc.

■Affiliates subject to compilation of environmental performance data (FY2020)

(As of March 31, 2020)

Group companies No. of companies Company names
Energy Resources & International Business Unit 1 Michigan Power Limited Partnership
LNG Power & Engineering Business Unit 17 Gas and Power Co., Ltd., Nakayama Joint Power Generation Co., Ltd., Nakayama Nagoya Joint Power Generation Co., Ltd., Hirogawa Myojinyama Wind Power Generation Co., Ltd., Hayama Wind Power Generation Co., Ltd., Yura Wind Development Co., Ltd., Hizen Wind Power Generation Co., Ltd., Hirao Wind Development Co., Ltd., Inami Wind Power Co., Ltd., Senboku Natural Gas Power Generation Co., Ltd., Daigas Oita Mirai Solar CO., LTD., Osaka Gas Liquid Co., Ltd., Cold Air Products Co., Ltd., Cryo-Air Co., Ltd., Kinki Carbonic Co., Ltd., Gasnet Co., Ltd., Osaka Gas Engineering Co., Ltd.
Pipeline Business Unit 2 Kinpai Co., Ltd., Osaka Gas Renotech Co., Ltd.
Residential Energy Business Unit 10 Living Maintenance Service Hokuto Co., Ltd., Living Maintenance Service Osaka Co., Ltd., Osaka Gas Cooking School Co., Ltd., Create Kansai Co., Ltd., Osaka Gas Customer Relations Co., Ltd., Aqua Brain Co., Ltd., Kansai Business Information Inc., Osaka Gas Housing & Equipment Co., Ltd., Osaka Gas Security Service Co., Ltd.Osaka Gas Finance Co., Ltd.
Commercial & Industrial Energy Business Unit 9 OGCTS Co., Ltd., Ashiyahama Energy Service Co., Ltd., Rokko Island Energy Service Co., Ltd., Enetec Kyoto Co., Ltd., Enetec Osaka Co., Ltd., Nabari Kintetsu Gas Co., Ltd., Toyooka Energy Co., Ltd., Shingu Gas Ltd., Biwako Blue Energy Co.,Ltd.
Group Headquarters 5 OG Sports Co., Ltd., Osaka Gas Autoservice Co., Ltd., Osaka Gas Business Create Co., Ltd., Active Life Inc., KRI Inc.
Osaka Gas Urban Development Group 3 Osaka Gas Urban Development Co., Ltd., Osaka Gas Facilities Corp., Kyoto Research Park Co., Ltd.,
OGIS Research Institute Group 7 OGIS-RI Co., Ltd., Agnie Consulting Corp., Sakura Information Systems Co., Ltd., SIS Techno-Service Co., Ltd., JOE Corp., Ltd., Ube Information Systems Inc., System Answer Inc.
Osaka Gas Chemicals Group 4 Osaka Gas Chemicals Co., Ltd., Minabe Chemical Industries Ltd., Mizusawa Industrial Chemicals, Ltd., Mizuka Unyu Co., Ltd.
Total 58

Environmental Activities Policy

Environmental Activities Policy

Environmental Action Targets

FY2016
Results
FY2017
Results
FY2018
Results
FY2019
Results
FY2020
Results
Targets for
FY2021
Gas business Environmental Management Efficiency
(yen / 1,000 m³)*1*2
59 52.5 11.6
(46.6)
12.5
(48.8)
13.6
(53.9)
14.2
CO2 emissions per 1 million m³ of gas produced
(t-CO2/1 millionm³)*3
11.7 10.5 9.6

11.0

13.0 11.7
CO2 emissions per 1,000m² of floor space of office buildings(t-CO2 / 1,000m²) 61.8 61.0 54.7 53.0 52.3 56.5
Industrial waste from LNG terminals (final disposal rate) (%) 0.3 0.1 0.1 0.6 0.0 1% or less
Industrial waste from facilities other than LNG terminals (final disposal rate) (%) 0.9 0.7 0.8 0.7 0.4 1% or less
General waste (final disposal rate) (%) 2.4 2.6 2.3 2.5 2.6 3% or less
Excavated soil (final disposal rate) (%) 1.3 1.4 0.4 0.3 0.3 1% or less
Polyethylene (PE) pipes (recycling rate) (%) 100 100 100 100 100 100%
Gas meters (reuse rate) (%) 99.3 99.6 99.5 98.6 99.6 98% or more
Group companies Group companies' businesses CO2 emissions per electricity generated ▲34% ▲33% ▲32% ▲32% ▲30% ▲15%
compared to FY2009
Other businesses (CO2 emissions per sales) (t-CO2 / 10 million yen) 8.7 8.9 9.2 9.3 8.3 8.2
Industrial waste / general waste (final disposal) (%)*4 8.4 9.5 3.3 3.4 3.1 4% or less
Amount of CO2 emissions reduced by the entire Group (t-CO2) - - 0.61 million tons 1.67 million tons 3.32 million tons 7 million tons
(Cumulative from FY2018 to FY2021)

The CO2 emission coefficient for the purchased electricity used is 0.69 kg-CO2/kWh for up until FY2016 and 0.65 kg-CO2/kWh for FY2017 and later.

*1 Environmental Management Efficiency
The results up to FY2017 are calculated values per gas sales volume using the LIME2 coefficient. The results after FY2018 are calculated values per gas production volume using the latest LIME coefficients.
*2 Figure shown in ( )
Figures in parentheses after FY2018 are calculated using the same formula as in FY2017.
*3 CO2 emissions per a certain volume of gas produced
Figures until FY2017 represent CO2 emissions per gas sales volume.
*4 Industrial waste / general waste (final disposal rate)
Until FY2017, core companies had been subject to calculation of final disposal rates. Since FY2018, subsidiaries have been subject to calculation of final disposal rates. The number of companies subject to calculation may vary depending on the year due to corporate merger and the like.

Response to Climate Change (management of emissions)

Climate change response policy

Energy consumption

FY2016 FY2017 FY2018 FY2019 FY2020
Consumption of non-renewable energy (GJ)*1 72,907,137 76,985,661 89,404,762 92,492,775 84,323,992
  Osaka Gas 3,512,300 4,505,103 4,518,770 3,590,894 3,522,658
Affiliates 69,394,837 72,480,558 84,885,991 88,901,881 80,801,334
Electricity and fuel consumption Electricity consumption
(1,000kWh)
443,634 419,049 414,691 453,424 461,737
Osaka Gas 136,368 117,057 109,715 123,385 132,450
Affiliates 307,266 301,992 304,976 330,038 329,288
Natural gas consumption(1,000 m³) 1,314,685 1,408,603 1,599,016 1,641,776 1,444,234
Osaka Gas*2 50,092 79,427 81,614 55,266 51,768
Affiliates 1,264,593 1,329,176 1,517,402 1,586,510 1,392,465
Other fuel consumption
(coal, heavy oil, etc.)(GJ)
9,323,499 9,554,074 13,493,898 14,424,020 15,150,154
Osaka Gas 11,998 2,380 1,258 3,262 3,614
Affiliates 9,311,501 9,551,695 13,492,641 14,420,758 15,146,541
Vehicle fuel consumption Gasoline (kl) 2,633 2,509 2,523 1,843 1,498
Osaka Gas 917 878 833 848 546
Affiliates 1,716 1,632 1,690 994 952
City gas consumption(1,000 m³) 256 181 141 82 68
Osaka Gas 238 167 125 67 59
Affiliates 18 14 16 15 10
Diesel oil(kl) 748 738 332 779 776
Osaka Gas 87 106 111 140 116
Affiliates 661 632 221 640 660
LPG(1,000 m³) 270 232 20 13 10
Osaka Gas 0 0 0 0 0
Affiliates 270 232 20 13 10
Heavy oil, etc.(GJ) 0 0 0 0 0
Osaka Gas 0 0 0 0 0
Affiliates 0 0 0 0 0
*1 Calculation of energy consumption
Per-unit calorific values listed below are used in calculating the energy being used.
  Purchased electricity Gas Gas before
calorific value adjustment process
Gasoline Diesel oil LPG LNG Heavy fuel oil A Kerosene Coal
Per unit calorific value 9.97
GJ / 1,000 kWh
45
GJ / 1,000 Nm³
40.9
GJ / 1,000 Nm³
34.6
GJ/kl
37.7
GJ/kl
104.3
GJ / 1,000 m³
54.6
GJ/t
39.1
GJ/kl
36.7
GJ/kl
25.7
GJ/t

Purchased electric power: Ordinance for Enforcement of the Act on the Rational Use of Energy City gas: based on data released by Osaka Gas Other fuels: based on laws and ordinances instituted to promote measures to combat global warming

*2 Amount of natural gas used
Includes city gas which adjusted heat quantity.

Atmospheric emissions

Greenhouse gas emissions (Scope 1 and 2)

Greenhouse gases subject to calculation are 、CO2, methane(CH4, N2O and chlorofluorocarbons (HFC).

FY2016 FY2017 FY2018 FY2019 FY2020
GHG emissions*1
(t-CO2e)
4,164,377 4,362,821 5,158,539 5,349,768 4,962,706
Scope 1   3,857,405   4,089,712   4,888,261   5,051,823   4,659,553
Scope 2 306,972 273,109 270,278 297,945 303,154
  Osaka Gas 212,483 258,600 258,682 209,450 207,040
Scope 1   118,377   182,500   187,354   129,236   120,934
Scope 2 94,106 76,100 71,328 80,214 86,106
  LNG terminal 93,476 87,641 84,275 89,384 97,291
Power plant 65,408 120,495 124,035 72,636 62,639
District heating and cooling 10,751 10,736 9,580 9,174 8,864
Offices 42,849 39,728 40,791 38,256 38,246
Affiliates 3,951,893 4,104,220 4,899,857 5,140,318 4,755,667
Scope 1   3,739,028   3,907,212   4,700,907   4,922,587   4,538,619
Scope 2 212,865 197,009 198,950 217,731 217,048
  Power generation 3,621,606 3,782,596 4,581,211 4,805,466 4,431,070
District heating and cooling 106,720 107,817 103,723 96,947 90,765
Other 223,568 213,808 214,923 237,904 233,831
GHG emission for comparison**2
(t-CO2e
4,088,670 4,283,378 5,073,477 5,248,043 4,853,062
Scope 1   3,857,405   4,089,712   4,888,261   5,051,823   4,659,553
Scope 2 231,265 193,666 185,216 196,220 193,510
  Osaka Gas 184,715 238,595 239,244 180,976 170,462
Scope 1   118,377   182,500   187,354   129,236   120,934
Scope 2 66,337 56,095 51,890 51,740 49,528
  LNG terminal 73,371 74,972 72,363 68,407 68,289
Power plant 65,161 120,309 123,816 72,415 62,389
District heating and cooling 10,390 10,477 9,132 8,719 8,493
Offices 35,792 32,837 33,932 31,436 31,290
Affiliates 3,903,956 4,044,783 4,834,234 5,067,066 4,682,601
Scope 1   3,739,028   3,907,212   4,700,907   4,922,587   4,538,619
Scope 2 164,928 137,572 133,327 144,479 143,982
  Power generation 3,619,032 3,780,511 4,578,944 4,802,955 4,427,914
District heating and cooling 97,322 97,732 93,616 85,722 78,365
Other 187,602 166,540 161,674 178,389 176,322
Greenhouse gas emissions (Scope 3)

Calculation of Scope 3 greenhouse gas emissions started in FY2016, covering the Osaka Gas Group's entire value chain. The data since FY2017 have received third party verification. (The data for FY2016 is out of scope for third-party verification.)

FY2016 FY2017 FY2018 FY2019 FY2020
Greenhouse gas emissions (Scope 3)(t-CO2e) 27,926,333 31,763,841 31,471,045 29,458,710 27,944,347
Category1 Purchased goods and services 555,513 535,317 552,547 566,068 568,485
Category2 Capital goods 350,002 268,186 250,204 275,897 397,517
Category3 Fuel procurement 4,475,334 5,090,592 5,370,828 5,299,691 4,711,988
Category4 Transportation (upstream) 3,761 4,357 17,187 13,219 14,589
Category5 Waste generated 55,382 55,414 57,798 56,586 17,005
Category6 Business travel 2,710 2,476 2,364 2,587 2,671
Category7 Commuting 9,725 8,885 8,483 9,284 9,585
Category8*3 Leased assets (upstream) - - - (0) (0)
Category9 Transportation (downstream)) 22,235 21,950 101 125 130
Category10*3 Processing of products - - - (8,552) (7624)
Category11 Use of products 22,017,035 25,296,910 24,725,918 23,111,005 22,130,743
Category12 Product disposal 17 74 76 74 25
Category13 Leased assets (downstream) 372,768 383,343 387,830 25,918 23,629
Category14 Franchises 61,851 96,338 97,709 98,255 67,980
Category15*3 Investments - - - (0) (0)
FY2016 FY2017 FY2018 FY2019 FY2020
Non-energy CO2(t-CO2 - - 3,645 4,451 4,287
  Osaka Gas - - 0 0 0
Affiliates - - 3,645 4,451 4,287
Methane emission(t-CO2e) 2,299 1,883 1,937 2,206 2,649
Methane emission*4(t-CH4 92 75 77 88 106
  Osaka Gas 92 75 77 88 106
Affiliates - - 3 4 4
N2O(t-CO2e) - - 3,498 3,577 3,513
N2O(t-CH4 - - 12 12 12
  Osaka Gas - - 0 0 0
Affiliates - - 12 12 12
Chlorofluorocarbons*5(t-CO2e) - - 4,337 1,329 124
  Osaka Gas - - 161 234 110
Affiliates - - 4,176 1,095 14
Nitrogen oxide emission(t-NOx) 747 585 852 859 792
  Osaka Gas 11 22 26 22 23
Affiliates 736 563 826 838 770
Sulfur oxide emission (t-SOx) 104 102 184 188 195
  Osaka Gas 0 0 0 0 0
Affiliates 104 102 184 188 195

Figures in the table do not appear to add up to the totals due to rounding.

*1Calculation of CO2 emissions
The following emission coefficients are used to calculate CO2 emissions.
  Purchased
electricity
City gas Gas before
calorific
value
adjustment
process
Gasoline Diesel
oil
LPG LNG Heavy
fuel
oil
A
Kerosene Coal
Emission factor *0.65 or 0.69 t-CO2 / 1,000 kWh 2.29
t-CO2/1,000 Nm³
2.23
t-CO2/1,000 Nm³
2.32
t-CO2/kl
2.58
t-CO2/kl
6.17
t-CO2/1,000 m³
2.7
t-CO2/t
2.71
t-CO2/kl
2.49
t-CO2/kl
2.33
t-CO2/t

*  CO2 emissions of purchased electricity subject to control are calculated using the average factor of thermal power plants so that the Daigas Group can precisely assess how the reduction of purchased electricity has contributed to a reduction in CO2 emissions.
Emission factor used for calculation of emission before FY2017: 0.69 t-CO2 / 1,000 kWh stipulated in the Interim Summary by Target Achievement Scenario Subcommittee of the Global Environment Committee, Central Environment Council (July 2001)
Emission factor used for calculation of emission in FY2017: 0.65 t-CO2 / 1,000 kWh stipulated in the Plan for Global Warming Countermeasures adopted at the Cabinet meeting in May 2016.
Emission factor for gas is the value published by Osaka Gas.
Emission factor for other fuels: Ministerial Order for Promotion of Measures to Cope with Global Warming

*2 GHG emission for comparison
CO2 emissions are calculated using the actual value of the emission factor of the electric power company in the previous fiscal year. Until FY2015, CO2 emissions associated with purchased electricity consumption are calculated by the following formula using the data of the most recent (previous year) published by Kansai Electric Power Co., Ltd.
Calculation formula: (Electricity consumption amount in each fiscal year) X (Emission factor for each fiscal year: For example, the emission factor for FY2015 is the actual value in FY2014). The emissions since FY2016 are calculated by multiplying the usage volume for each electric power company by the emission coefficient for that company, in accordance with the agreements signed with multiple electric power companies.
Therefore, the year-to-year difference in CO2 emissions does not necessarily reflect the effect of emission control measures.
The effective emission factor is used as the emission factor to ascertain actual emissions due to electricity use. (reference: The adjusted emission factor, which reflects the Kyoto Protocol's credit scheme, is used in the Greenhouse Gas Emissions Calculation and Reporting System.)
*3 Figures in parentheses
The figures are not subject to third-party verification.
The figures are 0 in Category 8 because energy consumption arising from tenant occupancy is included in Scopes 1 and 2. The figures are 0 in Category 15 because all the investments are for sales and policy reasons, not for investment purposes.
*4 Calculation of methane emission
Methane emission is calculated using GHG coefficient 25.
(Reference: IPCC Guidelines for National Greenhouse Gas Inventories 2012)
*5 Chlorofluorocarbons
Emissions of gases subject to the Act on Rational Use and Proper Management of Fluorocarbons are calculated.

Renewable energy source generation capacity (not subject to third-party verification)

FY2016 FY2017 FY2018 FY2019 FY2020
Generation capacity (1,000 kW)* Domestic 117 161 196 215 240
Wind - - - - 111
Solar - - - - 34
Biomass - - - - 40
Others - - - - 55
Overseas 104 104 104 104 104
Wind - - - - 53
Solar - - - - 51
* Generation capacity
The power generation at the facilities owned by the Daigas Group is included but that at facilities under plan and under construction is not included.

Water management policy

Water withdrawal and discharge

FY2016 FY2017 FY2018 FY2019 FY2020
Total water withdrawal (1,000 m³) 536,395 601,066 633,336

595,456

591,832
Tap water, industrial water withdrawal(1,000 m³) 10,549 11,127 12,122

14,311

12,753
  Osaka Gas 1,464 1,525 1,451 1,553 1,345
Affiliates 9,085 9,602 10,671 12,758 11,407
Groundwater withdrawal(1,000 m³) 3,553 3,475 3,572 3,788 3,721
  Osaka Gas 0 0 0 0 0
Affiliates 3,533 3,475 3,572 3,788 3,721
Sea water withdrawal(1,000 m³) 522,294 586,464 617,642 577,357 575,359
  Osaka Gas 390,721 398,016 423,994 394,525 383,869
Affiliates 131,573 188,448 193,648 182,832 191,490
Total water discharge (1,000 m³) 529,540 591,403 630,922 585,758 582,838
Discharged to municipal sewage system(1,000 m³) 1,775 1,788 1,685 1,641 1,558
  Osaka Gas 415 412 372 358 351
Affiliates 1,360 1,377 1,313 1,283 1,207
Discharged to rivers(1,000 m³) 3,029 1,257 2,978 3,786 3,417
  Osaka Gas 0 0 0 0 0
Affiliates 3,029 1,257 2,978 3,786 3,417
Discharged to sea(1,000 m³) 524,736 588,358 626,258 580,331 577,862
  Osaka Gas 391,629 398,994 424,928 395,647 384,813
Affiliates 133,107 189,364 201,330 184,684 193,049
■COD (LNG terminal)
FY FY2016 FY2017 FY2018 FY2019 FY2020
COD(t) 2 3 2 2 2

Resources and Waste

Policy on relevant issues

Policy on raw materials / Policy on waste disposal / Policy on chemical substances
Biodiversity Policy

Chemical substances

■ Chemical substances that are subject to reporting under the Pollutant Release and Transfer Register system

FY2016 FY2017 FY2018 FY2019 FY2020
Xylene (t) Handled 18 1 1 8 11
Released 6 1 0 0 0
Transferred 0 0 0 0 0
Toluene (t) Handled 30 28 28 30 37
Released 1 0 0 0 0
Transferred 0 0 0 0 0
1,2,4-Trimethylbenzene (t)* Handled - - - - 13
Released - - - - 0
Transferred - - - - 0
Zinc compounds (water-soluble) (t) Handled 439 413 368 436 357
Released 2 1 2 2 2
Transferred 0 0 0 0 0
Naphthalene (t)* Handled - - - - 0
Released - - - - 0
Transferred - - - - 0
Water-soluble salts of peroxodisulfuric acid (t)* Handled - - - - 1
Released - - - - 0
Transferred - - - - 0
Bisphenol A (t)* Handled - - - - 2
Released - - - - 0
Transferred - - - - 0
Organic tin compounds (t)* Handled - - - - 2
Released - - - - 0
Transferred - - - - 0
Lead (t)* Handled - - - - 1,019
Released - - - - 0
Transferred - - - - 0
Lead compounds (t)* Handled - - - - 1,033
Released - - - - 0
Transferred - - - - 0
Boron compounds (t)* Handled - - - - 20
Released - - - - 0
Transferred - - - - 0
Phthalic anhydride (t)* Handled - - - - 3
Released - - - - 0
Transferred - - - - 0
Maleic anhydride (t) * Handled - - - - 0
Released - - - - 0
Transferred - - - - 0
Methylnaphthalene (t) * Handled - - - - 22
Released - - - - 0
Transferred - - - - 0
*
Materials subjected to the third party verification since FY2020 report.

Waste

FY2016 FY2017 FY2018 FY2019 FY2020
General waste (tons) Generated 1,217 1,200 1,085 1,017 1,066
Osaka Gas 707 640 483 455 465
Affiliates 509 560 602 561 601
Final disposal 104 112 47 54 54
Osaka Gas 17 17 11 12 12
Affiliates 87 95 36 43 42
Recycling rate (%) 9% 9% 4% 5% 5%
Osaka Gas 2% 3% 2% 3% 3%
Affiliates 17% 17% 6% 8% 7%
Industrial waste (tons) Generated 81,097 92,711 104,345 120,043 133,675
Osaka Gas 3,114 2,865 2,596 2,296 2,213
Affiliates 77,983 89,846 101,749 117,747 131,462
Final disposal 2,864 4,310 3,321 4,035 4,082
Osaka Gas 27 18 18 16 9
Affiliates 2,837 4,292 3,303 4,020 4,073
Recycling rate (%) 4% 5% 3% 3% 3%
Osaka Gas 1% 1% 1% 1% 0%
Affiliates 4% 5% 3% 3% 3%
Used gas appliances, etc. (Osaka Gas)
  (1) Collected (tons) 2,232 1,719 1,665 1,738 1,722
(2) Recycled (tons) 1,927 1,501 1,448 1,512 1,485
(3) Final disposal ((1) - (2)) 305 219 217 226 238
(4)Recycling rate ((2)÷(1)) 86% 87% 87% 87% 86%
Polyethylene pipes (Osaka Gas)
  Collected (tons) 200 201 194 120 135
Recycled (tons) 200 201 194 120 135
Recycling rate 100% 100% 100% 100% 100%
Excavated soil (Osaka Gas) (10,000 tons)
  (1)Distance of installation works (km) 549 517 500 494 484
(2) Estimated amount of soil generated using conventional method*1 130 120 118.3 116.6 115.1
(3)Reduced 51 49 47.7 46.9 45.9
(4)Generated ((2)-(3)) (10,000 tons) 80 71 70.5 69.7 69.2
(5)Recycled 71 63 64.9 65.2 65.5
(6)Recycling rate ((5)/(4)) 89% 89% 92% 93% 95%
(7) Utilized*2 8 7 5.3 4.3 3.5
(8)Final disposal
((4)-(5)-(7))
1.0 1.0 0.3 0.2 0.2
(9)Final disposal rate ((8)/(4)) 1.3% 1.4% 0.4% 0.3% 0.3%
Copy paper (1,000 sheets)
  Osaka Gas 40,743 39,379 41,668 31,341 29,100
Affiliates 49,924 56,894 56,106 48,025 53,089
Compliance with the Home Appliance Recycling Law Air Conditioners
Number of units recycled (units) 4,093 3,870 4,205 4,728 4,348
Gross weight recovered (t) 170 159 173 195 177
Weight recycled (t) 154 144 156 178 161
Recycling rate 90% 90% 90% 91% 91%
Clothes Dryers
Number of units recycled (units) 345 321 347 591 476
Gross weight recovered (t) 13 13 14 24 19
Weight recycled (t) 12 11 12 21 17
Recycling rate 88% 87% 87% 88% 88%

Figures in the table do not appear to add up to the totals due to rounding.

*1 Estimated amount of soil generated
The amount that is believed to be generated when doing pipe installation without using current methods for reducing the amount of excavated soil. The difference between this figure and the actual amount generated is the reduced amount.
*2 Amount utilized
The amount used outside of Daigas Group, such as for improving farmland soil. Final disposal is the amount generated minus the amount recycled and the amount utilized.
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