Indicators of an Underground Oil Tank
Age of the Building:
- Detail: Buildings constructed before the mid-1970s are more likely to have underground oil tanks because oil heating was more common before this period. However, some properties built after this time may still have them if they were retrofitted or if the tanks were used beyond the typical installation period.
The Smell of Oil:
- Detail: A strong or persistent smell of oil around the property, especially in areas near the ground, can suggest a leak from an underground tank. The smell may be more pronounced during warm weather or after rain when the ground is saturated.
Stains on the Ground:
- Detail: Oil stains or discoloration around the property, especially in areas where the ground might have been disturbed, could indicate a leak. Stains may appear as dark patches or a sheen on the surface.
Presence of Fill and Vent Pipes:
- Detail: Look for fill pipes (used to add oil to the tank) and vent pipes (which allow gases to escape) protruding from the ground. These pipes are often capped but can be identified by their location, especially if they are rusty or old.
Oil Consumption Records:
- Detail: Historical records of oil deliveries or consumption can provide clues. Regular deliveries over many years might suggest the presence of an underground tank, especially if consumption is consistent and the property had oil heating.
Historical Documents:
- Detail: Reviewing building plans, permits, and inspection reports can help confirm the existence of an underground oil tank. These documents might include details on the tank’s installation, removal, or any related maintenance work.
Additional Considerations
Professional Inspection: Hiring a professional inspector who specializes in oil tanks can provide a thorough assessment. They can use tools like ground-penetrating radar or soil testing to detect tanks or leaks that might not be visible.
Regulations and Reporting: In BC, there are specific regulations for the management and removal of underground oil tanks. Contacting local government agencies or environmental authorities can provide guidance and ensure compliance with regulations.
Environmental Impact: Leaks from underground oil tanks can cause soil and groundwater contamination. If a leak is suspected, it is crucial to address it promptly to mitigate environmental damage and potential health risks.
Removal and Remediation: If an underground oil tank is found and is no longer in use, proper removal and remediation are necessary. This typically involves hiring a certified professional to safely remove the tank, clean the site, and address any contamination.
By combining these observations with professional expertise, you can more effectively determine the presence of an underground oil tank and address any associated concerns.
