Failed your septic tank inspection?
Don't panic. Most failures can be fixed, and the grant can cover most of the cost.
You're not alone: the EPA reported that 59% of septic tanks inspected in 2025 failed (EPA, 2026).
What the letter means
After an inspection, the council writes to tell you whether your system passed. If it failed, the letter (an advisory notice) sets out what needs to be fixed and by when.
Common reasons for failing
- The tank hasn't been emptied or maintained
- A cracked or leaking tank
- A percolation area that has failed or was never installed
- Surface water or roof water running into the system
- The system is too close to a well or stream
What to do next
- Read the letter and note the deadline
- Get the system checked and a fixed quote for the work
- Apply for the grant before the work starts (see the grant explained)
- Get the work done and signed off
- Claim the grant
More: EPA: inspections and repair
Common questions
Will I be fined?
The letter gives you time to fix the problem. What matters is acting on it before the deadline.
Do I have to replace the whole system?
Not always. Sometimes emptying, a repair or a new percolation area is enough. It depends on what failed.
Can I get help with the cost?
Yes. The septic tank grant covers 85% of approved costs, up to €12,000.
Get a callback
Areas we cover
Cork City · Ballincollig · Carrigaline · Midleton · Cobh · Mallow · Fermoy · Mitchelstown · Bandon · Clonakilty · Skibbereen · Bantry · Macroom · Kanturk · Youghal · Kinsale