The Deloro Mine site sits along the banks of the Moira River, along the east side of the community.

After the completion of the railroad in 1904 it opened up the possibility to ship silver to the Deloro mine for treatment.

'Cleanup' and demolition of the mine site followed with tons of arsenite refuse being buried, with the thoughts that it would eliminate the health hazard.

[7] When manufacturing operations shut down in 1961, nearly 100 years of hazardous by-products and residues were left behind on the Deloro Mine Site.

These included a "complex blend of toxic compounds; metals like cobalt, copper, nickel; and low-level radioactive wastes".

The low-level radioactive "slag and tailings produced during the re-refining of by-products from uranium refining has also had an impact.

The operations at the Deloro Mine Site caused significant environmental impact including the contamination of soil, sediment, surface and ground water.

In the spring of 1998 a very detailed soil survey was taken involving 145 homes, and in the fall of 1998 the study measured the arsenic levels in the urine of Deloro residents.

While the soil samples tended to be higher than those typically found in Ontario, the vegetables did not contain elevated contaminants.

Each home in Deloro, as well as the library, pump house and youth centre had swipe samples taken of interior surface dust.

These ranged from installing vacuum systems to simply replacing dirt basement floors with concrete ones.

Hastings County Road 11 passes through the community, heading south to a junction with Ontario Highway 7 about 5 kilometres (3 mi) east of the community of Marmora, and northeast to a junction with Ontario Highway 62 at Fox Corners.