How Do You Find Septic Permit or System Records in Adams, Jefferson, Arapahoe, and Douglas Counties?

The fastest way to find septic permit or system records in the Denver area is to start with the county health department or OWTS records portal for the property’s county. In some counties, you can search online by address or owner name. In others, you may need to request records or contact the department directly if the file is older or not fully digitized.
If you need help locating the system after the records search, you can review our septic locating and troubleshooting page here.
Which county should you start with for septic records?
You should always start with the county where the property is physically located. In Colorado, onsite wastewater treatment system records are handled locally, not through one single statewide septic-records portal.
That means the right path depends on whether the property is in Adams, Jefferson, Arapahoe, or Douglas County.
| County | Best first step | What you can usually search by | What to expect |
|---|---|---|---|
| Adams County | Contact the county health department water program | Address, permit information, or owner details when available | Public guidance points more toward county contact, forms, and records help than a clearly surfaced public map |
| Jefferson County | Use the online OWTS lookup application | Address and related document records | Immediate access to septic documents and tank-location records when available |
| Arapahoe County | Use the online septic system lookup | Owner name, permit number, address, or date range | Searchable records map with downloadable attachments when documents exist |
| Douglas County | Use the OWTS permit map and search | Record ID, address, owner name, or file name | Public map and search tool with permit files linked when available |
The best results usually come from starting with the exact property address and then widening the search only if the record history is incomplete.
How do you find septic records in Jefferson County?
Jefferson County is one of the easiest counties to start with because it provides immediate online access to septic system documents and records, including septic tank locations, through its lookup application. The county also says you can view, print, and save those records online.
If the address has no records with documents attached, that does not always mean the property never had a septic system. It can also mean the records are older, incomplete, or not available through the online tool.
How do you find septic records in Arapahoe County?
Arapahoe County offers an online septic record search that allows users to search permitted septic systems by owner name, permit number, address, and date range. If a record includes scanned documents, the search tool shows a document icon that lets you download the attachments.
That makes Arapahoe one of the more practical counties for self-service searching when you have at least a basic property reference to start from.
How do you find septic records in Douglas County?
Douglas County provides a public OWTS permit map and search tool. The county says you can search by record ID, address, owner name, or file name, and the map view can also be used to click on permit points and open the related permit file.
Douglas County also notes that some historical permits may not have been received from the former Tri-County Health Department. If no record is found, the county recommends contacting Environmental Health and notes that it may be necessary to work with a licensed installer, surveyor, or certified use-permit inspector to help locate the system.
How do you find septic records in Adams County?
Adams County’s public septic guidance is less self-serve than some neighboring counties. Its current septic-system page emphasizes regulations, applications, online portal submissions, and direct contact with the county’s water program, while its public use-permit FAQ says that if the OWTS was originally permitted by Adams County Health Department, the record can be obtained by calling the office.
For Adams County properties, that usually means the fastest path is to start with the county health department rather than assuming there is a public searchable septic map for every property.

What records are most useful when you find them?
The most useful records are usually the permit itself, the site plan or record drawing, inspection reports, tank size details, and any notes showing where the tank or access points are located. A record drawing can be especially valuable because it often shows how the tank sits in relation to the house, property lines, or other landmarks.
These are the records that make pumping, locating, inspections, and home-sale planning easier later.
Use this checklist before you start your search:
- Confirm the property’s county first.
- Search by the exact street address if the county tool supports it.
- Try the owner name and permit number if the address search comes up empty.
- Check whether record drawings or attachments are available to download.
- Save copies of any permit, site plan, or inspection record you find.
- If no record appears, contact the county before assuming the system has no history.
If the records search still does not reveal the tank location, the appropriate next step is the
Affordable Septic Pumping-septic system locating and troubleshooting service, which helps identify the system accurately before proceeding.
What should you do if the county search shows no record?
If the county search shows no record, the next step is to confirm the address format, try alternate search fields, and then contact the county department directly. Missing online records can happen because older permits were never digitized, attachments were not uploaded, or the property record is filed differently than expected.
That is especially common with older septic systems and properties that changed county systems or recordkeeping platforms over time.
| Situation | Best next step | Why | What not to assume |
|---|---|---|---|
| No result from an online address search | Try owner name, permit number, or map search | Records may be filed differently than expected | That no septic record exists |
| Record exists but no attachments are visible | Contact the county for older or offline files | Some systems have partial digital history only | That the county has no additional information |
| County notes missing historical permits | Ask county staff what archive gaps exist | Historical transfers or incomplete uploads happen | That the property never had a permitted system |
| Records are incomplete but a system clearly exists onsite | Use locating help plus county follow-up | A field search can support the records gap | That guesswork alone is enough |
Why do septic records matter before pumping, inspection, or sale?
Septic records often tell you tank size, approximate location, permit history, and whether the system has known changes or repairs in its file. That can save time during pumping visits, make inspection scheduling easier, and reduce surprises during a home sale.
Records also help separate a true “unknown system” problem from a system that is simply harder to access.
What does this look like in real life?
A realistic example is a homeowner in Douglas County who needs pumping but has no idea where the tank sits. The county’s permit map may provide a permit file or enough location information to narrow the search before anyone starts probing the yard.
Another common example is a seller in Adams County who needs a transfer-related inspection and assumes all county records will be online. In practice, the better first move may be to call the county water program and request the available file history instead of spending time searching for a public map that is not clearly surfaced.
What mistakes do homeowners make when searching septic records?
The most common mistake is starting with the wrong county or assuming the mailing address always matches the county that owns the septic record. Another mistake is stopping after one failed address search without trying the owner name, permit number, map search, or county contact route.
Homeowners also lose useful time when they find a record but do not save the site plan, permit drawing, or inspection attachments for future use.
Red flags to watch for
Be cautious if the property appears to have a septic system but no one can produce a permit, site plan, inspection history, or county file reference. It is also worth slowing down if the county search results are partial, the attachments are missing, or the property sits in an area with older records that may not be fully digitized.
A missing online result should lead to a better search process, not to guesswork.
What is the best next step after you find the records?
Once you find the records, save them somewhere easy to access and use them to make the next service visit more efficient. A permit drawing or tank-location note can reduce search time, help with inspections, and make future maintenance planning much simpler.
For a broader overview of pumping, inspections, repairs, and service routing, you can review our septic services overview here.

Final takeaway
The easiest way to find septic permit or system records in Adams, Jefferson, Arapahoe, and Douglas Counties is to follow the county’s actual process instead of assuming every county uses the same search tool. Jefferson, Arapahoe, and Douglas offer stronger self-serve lookup options, while Adams often starts with direct county contact.
If records still leave questions about the tank location or access points, start with our septic locating and troubleshooting page here.
Frequently Asked Questions
Can you search septic records online in Jefferson County?
Yes. Jefferson County says homeowners can get immediate access to septic system documents and records, including septic tank locations, through its online lookup application.
Does Arapahoe County have an online septic record search?
Yes. Arapahoe County offers a septic system lookup that can be searched by owner name, permit number, address, or date range.
What if Douglas County does not show a septic record online?
Douglas County says some historical permits may be missing from the online files and recommends contacting Environmental Health if no record is found.
How do you get Adams County septic records?
For Adams County properties, the public guidance points homeowners toward the county health department and says records can be obtained from the office when the system was originally permitted there.










