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Locate septic tank lids before building or covering the area

Pumping, inspection and repair access must remain usable after a patio, deck, shed, driveway extension or landscaping project is complete.

What is about to happen?

A patio, shed pad, deck, driveway extension, turf installation or major landscape project is planned on a property served by septic.

What must remain reachable?

The septic tank lids or risers and, depending on the system, pump-chamber or other service access. The drainfield also needs protection from inappropriate loading and construction activity.

What records may help?

Septic as-built records, permits, prior pumping invoices and notes from the last service visit may help narrow the location. Records can be incomplete or inconsistent with current site conditions, so use them as evidence rather than a guarantee.

What does the visible yard not guarantee?

Older tanks may have access below grade, and landscaping can hide earlier excavation clues. A flat lawn does not establish that the proposed work area is clear.

What becomes difficult if the location is wrong?

Future pumping, inspection or repair may require removing part of the new surface or structure. Heavy equipment or permanent construction can also interfere with septic components and the service area.

When should verification happen?

Before final layout, excavation, footings, base preparation or material delivery. Confirm the service-access plan with the appropriate septic professional and project contractor.

Septic location or access still unclear?

A septic service provider may be appropriate. Provider availability depends on the project and service area.

Call 877-735-2796 to discuss relevant service options

Need a septic-specific briefing? Review the septic-location guide before the project begins.