| 1955 |
Stellite and precision casting sections move to Belleville. |
| 1958 |
After the Korean war, the price of cobalt falls
worldwide. Mining around Cobalt, Ontario is exhausted,
and there is increased competition from African ores
and Belgian smelting. Deloro is forced to cease cobalt
processing. |
| Late 50s |
Arsenical based insecticides give way to organic
pesticides. Large piles of arsenic are stockpiled on
site. |
| 1961 |
The Deloro Mining and Smelting Company closes its
plant. The property is transferred to Deloro Stellite
of Belleville. Many buildings standing previous to 1940
now destroyed. |
| 1970 |
British Oxygen purchases Deloro Stellite but not
the Deloro site. The site is transferred to Erickson
Construction, a subsidiary of M.J. O'Brien Ltd. |
| 1978 |
Ministry of the Environment issues order, under
the Environmental Protection Act, to site owner Erickson
Construction Company Limited to control arsenic discharges
to Moira River. |
| 1979 |
Company fails to comply with ministry order and
declares a lack of operating funds. The Ministry of
the Environment issues a second order requiring the
company to cease operations that affect the environment.
The company abandons the site. The Ministry of the Environment
invokes section 99 of the Environmental Protection Act
and assumes environmental management of the site as
remediator of last resort. |
