Where the septic paperwork for a property in Arco is actually kept, what it contains, and how to get a copy. In Butte County, Idaho, which covers Arco, we have measured 857 parcels on septic and 724 on sewer. That is a county measurement. We do not hold a septic count for Arco on its own and this page does not estimate one.
The document people mean by “the septic record” is usually the as-built drawing filed with the county after the system passed its final inspection. A complete one shows the tank’s working capacity and its position relative to the house, the location and layout of the dispersal field, the design flow the system was permitted for, the date, and who installed it. The permit file underneath it holds the application, the soil or site evaluation, and the inspector’s sign-off. Between them they answer the questions that cost money to answer any other way: where the lid is, how big the tank is, and where you must not dig, park or build.
We have not yet collected septic documents from Butte County, Idaho, so for a Arco property the county's own file is currently the only route. This page is about getting you to it, not about pretending we hold something we do not. The county is genuinely mixed: 857 of 1,581 classified parcels are on septic and the rest are sewered. Which side of that line a Arco address falls on is worth establishing before anything else. We have not found a published online records portal for this county, which means the file is requested from the county directly rather than searched.
| County | Records we hold | Records machine-readable | County records portal | Searchable without an account |
|---|---|---|---|---|
| Butte County | 0 | 0% | not published | — |
Neither figure is a claim about how many records the county itself has. A county nearly always holds more than we have collected.
Where the county publishes a searchable portal it is linked in the table above, and that is nearly always faster than a formal request. Bring the parcel number if you have it: septic files are indexed by parcel far more reliably than by street address, and an address search failing does not mean the record is absent. If the portal has nothing, the record is requested from the county in writing. For Butte County the request goes to Southeastern Idaho Public Health (SIPH) via https://www.siphidaho.org/environmental-health/septic-onsite.php. We publish a custodian only where we verified it against the county’s own page.
Systems installed before a county began permitting often have no as-built at all. That is a finding, not a dead end: the tank and field are then located physically and an inspection becomes the record.
Septic permits are held by the county, not the city. For Butte County the request goes to Southeastern Idaho Public Health (SIPH) via https://www.siphidaho.org/environmental-health/septic-onsite.php. We publish a custodian only where we verified it against the county’s own page.
Yes, and it is common. Systems installed before the county started permitting often have no as-built on file. The system then has to be located and assessed physically.
In Butte County, Idaho, which covers Arco, we have measured 857 parcels on septic and 724 on sewer. That is a county measurement. We do not hold a septic count for Arco on its own and this page does not estimate one.
From the Census ZCTA-to-place relationship file, with the share of Arco’s land area that falls in each. A ZIP is not a place boundary and the two only ever partly agree, which is exactly why both pages exist.
Straight-line distance from the Census internal point of Arco.
Parcel Perfect generates a code-shaped septic design and as-built style drawing for a parcel from the records and site data we hold, and shows every parcel we have classified as septic or sewer on one map. Both are open to use for any parcel in Butte County, Idaho.