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Conserving Water Resources

 The Environmental Outlook to 2050 (2012) produced by the Organization for Economic Co-operation and Development (OECD) reports that during the period between 2000 and 2050, global demand for water will increase by approximately 55%, and over 40% of the global population will be living in river basins under severe water stress.
 The Kubota Group sees conserving water resources as one of its materiality, and has been advancing initiatives to promote the effective utilization of water resources and to address water risks, such as the reduction of water consumption by promoting water saving and wastewater recycling, and the proper management of wastewater treatment and wastewater quality. Production sites promote measures not to cause adverse effects on local ecosystems and the lives of local residents, taking into consideration the status of water stress in the respective regions.

Activities towards achieving SDGs

Related SDGs and targets
Major Activity Content
  • Promotion of measures to reduce water resource waste and losses, focusing on JIT and automation
  • Water conservation measures, water leak inspections, introduction of wastewater regeneration equipment which applies our company’s technology
  • Thorough execution of appropriate wastewater management, risk management, etc.
2020 Activity Targets (KPIs)
  • Medium-Term Environmental Conservation Targets 2020:
     - Water usage intensity at global production sites: 10% improvement compared to the base year 2014

Medium-Term Environmental Conservation Targets 2020 and the Results for RY2018

Conserve water resources Water consumption per unit of production Global production sites 2014 -10% -13.4% We are promoting recycling of wastewater and saving of water use.

Water Consumption in the Business Sites

1. Water Consumption

 In RY2018, water consumption was 4.88 million m<sup>3</sup>, an increase of 8.2% compared to the previous reporting year. Additionally, water consumption per unit of sales worsened by 2.3% compared to the previous reporting year. These changes were mainly due to the increased water usage as a result of the increased production volume at cast iron production sites in Japan.

Trends in Total Water Consumption and Consumption per Unit of Sales

Water Consumption by Region   Water Consumption by Business
  
Water Consumption by Type
 Japan   Overseas
  

2. Measures to Reduce Water Consumption

 The Kubota Group has established its Medium-Term Environmental Conservation Targets, and is working on the reduction of water consumption at its business sites. Its production sites, such as those in China, Thailand, Indonesia and the United States, have introduced wastewater treatment facilities or wastewater recycling systems utilizing technologies of the Kubota Group.
 In 2018, we continued to implement daily activities such as raising employees’ awareness of saving water and conducting patrols to check water leakage. In addition, we installed water-saving valves and worked to improve methods of watering green areas. As a result of the efforts toward achieving the Medium-Term Environmental Conservation Targets 2020 for water consumption reduction, global production sites achieved a reduction of 172,000 m3 in RY2018 compared with the case where countermeasures were not implemented from the base year (RY2014). The economic effects of these measures reached 62 million yen compared to RY2014. Water consumption per unit of production in RY2018 improved by 13.4% compared to RY2014.
 We will continue to promote the reduction of water consumption through initiatives to promote the 3Rs of water, such as conducting water saving activities and promoting water recycling by using the Kubota Group’s technologies.


Achieving zero emission of in-process wastewater
Kubota Agricultural Machinery (Suzhou) Co., Ltd. (China): Reducing water consumption through the recycling of in-process wastewater

Controlling Wastewater

 The Kubota Group has set its own control values that are stricter than the emission standards of relevant laws and regulations. In order not to allow the exceeding of standard values, the Kubota Group implements thorough daily management activities, such as monitoring the trends in water quality data and inspecting the wastewater treatment facilities.
 Moreover, we control the amount of water discharge by reducing the amount of water consumption. In RY2018, the amount of wastewater discharge was 5.12 million m3 (3.62 million m3 into public water areas, 1.50 million m3 into sewage lines), an increase of 9.5% compared to the previous reporting year.
 We will continue to reduce load on the local water environment through activities to manage water discharge and reduce water consumption.

Survey on Regional Water Stress

 In order to identify the risks related to the use of water resources and find effective responses to such water risks, the Kubota Group conducts surveys concerning water stress* for all of its production sites.
 The results of a survey on water stress of a total of 50 sites in 14 countries using Aqueduct (water risk assessment tool developed by the World Resource Institute (WRI)) are as follows:


Results of the Survey on Water Stress of Production Sites (RY2018)



Water Consumption by Water Stress Level

 The survey results showed that there are 10 production sites with “High” level of water stress which are located in the Osaka Bay area, Tokyo Bay area, Okinawa, Saudi Arabia, and the Midwest area of the United States. The amount of water consumption by these sites accounts for approximately 3% of the total. Subsequently, there are 15 production sites located in Japan, China, and Indonesia, with a few in Europe, that fall into the “High-Middle” level category. The amount of water consumption by these sites accounts for approximately 36% of the total. The survey revealed that half of all production sites fall under the “High” or “High-Middle” water stress level categories and that these sites account for approximately 38% of water consumption.
 In light of the fact that much of the water used for its production activities is taken in areas with relatively high levels of water stress, the Kubota Group implements measures to reduce water risk, including reducing water consumption and properly managing wastewater. The Group will also conduct water stress surveys in each case for the water areas around new sites that are scheduled for construction as part of the Group’s more globally oriented business growth.

Related Information

Kubota's research and development values thorough hands-on approach. As an agricultural and water expert, we challenge and attain the future of food, water, and the environment, realizing our customer's needs.

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