Environmental Data
Soil and Groundwater
Surveys and Measures Taken on Soil and Groundwater Contamination
Efforts regarding soil and groundwater contamination
Konica Minolta is striving to manage the state of contamination through regular monitoring, to facilitate cleanup, and to prevent the spread of contamination.
It conducts robust management through periodic observation at sites where soil or groundwater contamination has been identified to ensure that the contaminants do not affect the surrounding environment.
The Group has organized a special team to manage remediation of polluted sites and to prevent the spread of contamination. Detailed surveys conducted under the team's supervision serve as the basis for developing countermeasures and examining suitable purification technologies.
The Group reports the results of its observations and remediation efforts periodically to local government agencies and to concerned neighboring residents.
| Operation Site | Substances | Progress in Fiscal 2016 |
|---|---|---|
| Tokyo Site Hino (Hino, Tokyo) |
Fluorine, Boron, Mercury, Benzene, Lead | The company has continued to periodically monitor groundwater at the site boundary and has confirmed that amounts of these substances do not exceed standards. |
| Tokyo Site Hachioji (Hachioji, Tokyo) |
Hexavalent chromium | The company has continued to purify groundwater and prevent contamination and dispersion by pumping water at the site. It has periodically monitored the groundwater and confirmed that there is no runoff of these substances from the site. |
| Kofu Site (Chuo, Yamanashi Prefecture) |
Fluorine | The company has continued to periodically monitor groundwater at the site boundary and has confirmed that amounts of fluorine do not exceed standards. |
| Mikawa Site, Western Zone (Toyokawa, Aichi Prefecture) |
TCE*1, Fluorine | The company has continued to periodically monitor groundwater, even after completing water pumping countermeasures, and has confirmed that amounts of these substances do not exceed standards. |
| Itami Site (Itami, Hyogo Prefecture) |
Lead, Arsenic, Cadmium, Fluorine, Boron | The company has continued to purify and prevent contamination and dispersion of boron and fluorine, which have been found in some groundwater at the site, by pumping water. It has confirmed that amounts of lead, arsenic, and cadmium do not exceed standards at periodically monitored wells. |
| Sakai Site (Sakai, Osaka) |
TCE, PCE*2, c-DCE*3, Boron, Lead, Arsenic, Cadmium | The company has continued to purify and prevent contamination and dispersion of TCE, PCE, c-DCE, and boron by pumping water. It has found that amounts of lead, arsenic, and cadmium do not exceed standards at periodically monitored wells. |
| Osaka Sayama Site (Osaka Sayama, Osaka) |
TCE, PCE, c-DCE | The company has continued to purify and prevent contamination and dispersion by pumping up water. In fiscal 2016, it added a pumping well and enhanced countermeasures. |
| Site of the former Nankai Optical Co., Ltd. (Kainan, Wakayama Prefecture) |
TCE, PCE, c-DCE | The company completed purification work at the site in fiscal 2016. The company has continued to periodically monitor groundwater at the site boundary and has confirmed that amounts of these substances do not exceed standards. |
| Konica Minolta Mechatronics Co., Ltd. (Toyohashi, Aichi Prefecture) |
TCE, c-DCE, Hexavalent Chromium | The company has continued groundwater purification by pumping water at the site and has confirmed through periodic monitoring that there is no runoff of these substances from the site. |
| Konica Minolta Opto Products Co., Ltd. (Fuefuki, Yamanashi Prefecture) |
TCE, PCE, c-DCE | The company has implemented remediation of ground water through pumping, permeable reactive barriers, and bio-barriers, and continued periodic observation to confirm that there is no runoff of the relevant substances from the site. |
| Konica Minolta Supplies Manufacturing Co., Ltd. (Kofu, Yamanashi Prefecture) |
TCE, PCE, c-DCE | After the bioremediation work conducted in fiscal 2014, the company has continued to confirm the effects through periodic observation of groundwater at monitored wells located on site. |
- *1
- TCE: trichloroethylene
- *2
- PCE: tetrachloroethylene (perchloroethylene)
- *3
- c-DCE: cis-1,2-dichloroethylene (resolvent of TCE and PCE)