Omron logo

Environmental Management

Water Usage

Goal

Goal

Reduce water usage at all global production sites by 6% vs. FY2015 result as of FY2020.

Our Stance

As usage of water increases worldwide due to economic development and population increase, there are growing global concerns regarding water risk. OMRON is committed to reducing its water withdrawal in order to effectively use limited water resources.

FY2018 Overview

Since fiscal 2014, OMRON has kept track of water resource data based on CDP’s water program.

In fiscal 2017, OMRON set environment-related social issues to address, together with the company's identified sustainability issues and long-term goals. Accordingly, all of its production sites worldwide have been working to make more effective use of water resources.

In fiscal 2018, water withdrawal at all production sites worldwide was down 7.2% compared with fiscal 2015, as a result of efforts at the sites.

Amounts of Water Withdrawn and Discharged (Japan and Overseas)

Unit: 1,000m3
    FY2014 FY2015 FY2016 FY2017 FY2018
Japan Amount withdrawn
779
728
721
712
790
Amount discharged
722
615
598
607
661
Overseas Amount withdrawn
1,343
1,024
962
936
944
Amount discharged
1,178
857
827
791
797
Total Amount withdrawn
2,122
1,752
1,683
1,648
1,734
Amount discharged
1,899
1,472
1,425
1,398
1,458
Per unit of sales (1,000m3/one million yen)
0.0022
0.0018
0.0018
0.0019
0.0020

[Boundary] Global production sites from FY2014 to FY2017, and all global sites in FY2018

Yasu Office's Initiatives for Water Use Reduction

Yasu Office in Japan requires a large amount of water for the manufacturing of semiconductors, and utilizes groundwater as an intake source.
As groundwater is high in metal, salt, and other impurities, the office uses iron and manganese removal and ion-exchange equipment to filter the water.
As repeatedly used, filters accumulate dirt and require regular backwashing and cleaning.
The office previously discharged all of the treat water used for cleaning to sewerage, but changed its water treatment process in order to reuse rather-clean treat water, except for the water used for early-stage cleaning.
As a result, the office realized to cut groundwater intake by 5,630m3 a year.

Initiatives to Recycle Water

At Yasu office, discharged water is recycled with 3 methods as follows:

  • (1) Collection and recycle of diluted wastewater
    Some discharged water from cleaning process in manufacturing is comparatively clean. Yasu office returns such water back to a manufacturing step ahead of the step that uses ultrapure water.
  • (2) RO brine water
    Yasu office recycles discharged water filtered through Reverse Osmosis Membrane in manufacturing process that uses ultrapure water.
  • (3) Recycle of discharged water from cleaning of iron and manganese removal equipment
    At Yasu office, water taken from a well is filtered at equipment for iron and manganese removal. The equipment is cleaned regularly, and the water used at the latter part of the cleaning process, which is rather clean, is recycled.

In fiscal 2018, 164m3 of water was recycled at Yasu office.

Addressing Water-related Risks

OMRON assessed and identified sites with water-related risks by using WRI's Aqueduct, which is a CDP Water Program's evaluation tool, together with a water risk analysis service provided by a risk management consulting company.

There are five sites with water-related risks: Dalian and Shanghai in China, Okayama in Japan, San Ramon, California in the United States and Bekasi in Indonesia, withdrawing 244,000m3 in total in fiscal 2018. These sites have not yet received instructions from administrative authorities to reduce the amount of water withdrawal or to improve quality of discharged water. However, OMRON Group sites in these areas are implementing voluntary measures to preserve water resources.

DFF Inc., OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON EXPERTLINK Co.,Ltd., OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON Corporation, OMRON EXPERTLINK Co.,Ltd., OMRON Automotive Electronics Co. Ltd., OMRON SOCIAL SOLUTIONS Co.,Ltd., OMRON SOCIAL SOLUTIONS Co.,Ltd.