- remnant subsurface heating oil impact in the vicinity of the former Coliseum Annex boiler rooms
- remnant subsurface heating oil impact in the vicinity of the East Lavatory (Horticulture Building) boiler room
- the eastern landfill (Ur-27) beneath the eastern portion of the site
- the suspected southern landfill in the vicinity of the south side Stands
- ammonia impact in the vicinity of the Horticulture Building associated with former indoor ice making activities
In addition, there are several areas of potential concerns identified, specifically:
- potential soil and/or groundwater impact from a historic gasoline service stations and historic dry cleaning facility formerly located at 1014/1016 Bank Street, approximately 23 metres west of the site at the northeast corner of the intersection of Bank Street and Wilton Avenue
- potential soil and/or groundwater impact from historic gasoline service stations, historic automotive repair shops and historic dry cleaning facilities formerly located along Bank Street, including historic gasoline service station located approximately 25 metres northwest of the site at 912 Bank Street
- potential soil and/or groundwater impact from a historic transformer, potentially containing oil with polychlorinated biphenyls (PCB) additives, located north of the Coliseum Building near the west end of the former Annex
- potential soil and/or groundwater impact from the transformer vault and boiler room and potential unknown fuel sources at the southeast corner of the former McElroy Building
- potential soil and/or groundwater impact associated with historic fuel sources and storage methods for the Horticulture Building heating equipment
- potential soil and/or groundwater impact associated with a former gasoline and oil storage area located near the former General Purpose Building during occupation by the Military from 1941 to 1946
- potential soil and/or groundwater impact from the boiler house for the former Machinery Hall Building located just east of the site on NCC lands
- potential soil and/or groundwater impact associated with oil observed in the Civic Centre elevator sump pit during a previous Phase 1 ESA of the site
- potential soil and/or groundwater impact associated with oil observed in the Civic Centre sanitary sump pit during a previous Phase 1 ESA of the site
- potential soil and/or groundwater impact by ammonia in the vicinity of the Civic Centre ice making equipment
- potential hydraulic oil leaks and subsurface soil and/or groundwater impact at the piston elevator shaft and sump pit in the Eddie Friel building
- unknown material types and quality associated with fill that has been placed across the site
The report examines historic and current uses of the site in order to assess the environmental condition of the site. Neither remedial action nor cost estimates to fix the identified problems are included in this report.