Tank and lid location
Some records show where the septic tank was installed, how it sits relative to the house, or where access lids may be located.
Looking for the location of a septic tank or drain field? The original installation permit or septic system record is often the fastest way to find it.
Many counties maintain septic permits, wastewater system drawings, and inspection records through environmental health departments. Use the guide below to find the agency responsible for septic system records in your state.
Search Tool
Select your state to identify the environmental health department or wastewater agency responsible for septic permits. You can also add an address note for your own reference while searching.
Record Clues
County septic records, permits, inspection files, and as-built drawings can sometimes narrow the search before you walk the yard.
Some records show where the septic tank was installed, how it sits relative to the house, or where access lids may be located.
Permit sketches may show the treatment area, field trenches, or the general direction the field extends from the tank.
When a system uses a distribution box, a site plan may show where flow leaves the tank before splitting into the field area.
Old files may include installer notes, inspection history, repair records, soil test details, or other clues about the original layout.
Even when records are not online, the responsible county environmental health office may be the practical next place to ask.
Use any record clues with the tank, line, and drain field guides. If records are missing, start with the missing-records guide.
State Agencies
Most septic permits are issued through environmental health or wastewater management programs. The agencies below commonly manage septic system approvals and records.
50 states
Important Notice
This website does not maintain septic permit databases or property wastewater records.
All links on this page direct visitors to external government agencies, environmental health departments, or public record systems that may maintain septic permits and wastewater system documentation.
Availability of septic records varies widely depending on the county, the age of the property, and whether records have been digitized.
This guide simply helps homeowners identify the agencies that may hold septic system permits, installation plans, or inspection records.
If records cannot be found
Use plumbing exit points and yard clues to narrow down the likely tank location.
How to Find Your Septic TankHelpful before digging, installing irrigation, or landscaping projects.
How to Locate Septic LinesUnderstand where wastewater disperses into the soil.
How to Find Your Drain FieldUse a practical checklist when permits are missing, incomplete, or not digitized.
What to do when records are missingDecide when records, yard clues, and 811 markings are not enough before digging.
When private locating may help