{
 "fips": "55121",
 "state": "WI",
 "county": "Trempealeau",
 "slug": "trempealeau",
 "records": {
  "held": 0,
  "text_searchable_pct": 0
 },
 "parcels": {
  "on_septic": 7660,
  "on_sewer": 5214,
  "classified": 31886,
  "status": "measured"
 },
 "records_access": {
  "portal_url": "https://ch.co.trempealeau.wi.us/gcswebportal",
  "platform": "aspnet_webforms",
  "anonymous_search": true,
  "tested": true,
  "finding": {
   "blocker": "The known portal (GCSWebPortal) is a property/tax assessment portal (Catalis GCS), not a septic/onsite-sewage records system. It redirects to a Login.aspx page (auth-gated) and the county has deprecated it in favor of a new Ascent LandRecords portal (ascent.co.trempealeau.wi.us/LandRecords), which is also a real-estate/tax-parcel system (Transcendent Technologies) with no septic/onsite-sewage document module. The county's Department of Land Management pages (permits/applications, building construction) contain no septic/onsite-sewage records search or document listing, and the county's ArcGIS REST service (gis.co.trempealeau.wi.us) returned no layers. No public path to enumerate septic/onsite-sewage permit documents was found; the GCS portal itself is login-gated.",
   "detail": "model reported not crackable: The known portal (GCSWebPortal) is a property/tax assessment portal (Catalis GCS), not a septic/onsite-sewage records system. It redirects to a Login.aspx page (auth-gated) and the"
  }
 },
 "custodian": null,
 "public_records_law": {
  "act": "Wisconsin Public Records Law",
  "response_days": null,
  "deadline_basis": "business days"
 },
 "providers_listed": 0,
 "pages": {
  "county_records": "https://parcelperfectseptic.com/septic-records/wi/trempealeau/",
  "companies": "https://parcelperfectseptic.com/septic-records/companies/wi/county/trempealeau/",
  "state_rules": "https://parcelperfectseptic.com/septic-records/rules/wi/",
  "map": "https://parcelperfectseptic.com/"
 },
 "last_verified": "2026-09-01"
}