Preventing Water Pollution

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Action Plan

Self-assessment rating　○：Targets achieved　△：Targets partially achieved　×：Targets not achieved

FY2008 Targets	Maintain FY2005 total volume levels
FY2008 Results	BOD: 30% decrease from FY2005 level COD: 13% decrease from FY2005 level	○
FY2009 Targets	Maintain total volume levels

Basic Policies

To prevent water pollution, OMRON has established in-house guidelines with voluntary standards for control of BOD (biological oxygen demand) and COD (chemical oxygen demand) concentrations. Each site is closely monitoring and measuring water pollutants, while at the same time working to reduce BOD and COD, by installing organic materials decomposition/removal systems in the drainage path, and through regular inspection of water purification tanks.

FY2008 Overview

OMRON sites in Japan worked toward the goal of maintaining BOD and COD at fiscal 2005 levels or lower, through control according to voluntary standards. Thanks to these efforts, OMRON was able to reduce BOD by 30% and COD by 13% compared to fiscal 2005, thus meeting its targets.
In fiscal 2009, OMRON will continue to aim at maintaining fiscal 2005 levels for BOD and COD as in fiscal 2008.

Measured Values of Water Pollutants（BOD,COD）

Efforts to Prevent Water Pollution

Organic material decomposition/removal system Organic material decomposition
/removal system

To curb emissions of water pollutants, OMRON continued to closely monitor and measure BOD and COD. Other measures included regular inspection of water purification tanks and administration of disinfectants, as well as facilitating the breakdown of n-hexane extracts (n-Hex) such as animal/vegetable oils in winter, which combined to help lessen impact on the environment.

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