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Welcome to the Idaho Septic Systems Knowledgebase

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Posted: November 5, 2025 • By: Ryan Malloy

We're excited to announce the launch of the Idaho Septic Systems Knowledgebase - the most comprehensive public archive of Idaho septic system regulations, guidance, and resources.

This knowledgebase represents months of meticulous data collection across Idaho's 7 health districts and the Department of Environmental Quality (DEQ). The result is an unprecedented resource:

  • 94 Documents collected from official sources
  • 85 High-Resolution Diagrams extracted at 300 DPI
  • 99.6% Collection Completeness verified through systematic audits
  • 37 Counties covered across Idaho
  • ~1.8 Million Residents served by documented districts
  • Find permit applications for your county
  • Access maintenance guides and troubleshooting resources
  • Discover grant funding opportunities
  • Get pre-purchase evaluation information
  • Complete training materials (Basic and Complex certifications)
  • Technical specifications and approved products lists
  • Licensing requirements by district
  • Installation standards and best practices
  • DEQ Technical Guidance Manual (350+ pages)
  • Alternative system designs (27+ types documented)
  • Separation distance tables and setback requirements
  • Soil evaluation and site assessment criteria
  • Pre-purchase inspection guides
  • System evaluation checklists
  • Transfer of ownership requirements
  • Property disclosure information

We've documented all 7 Idaho health districts:

  • Panhandle Health District
  • North Central District
  • Southwest District
  • Central District Health
  • South Central District
  • Southeastern District
  • Eastern Idaho Public Health

Plus complete DEQ statewide resources including 20 guidance memorandums spanning 1993-2021.

Multiple ways to find what you need:

  • Full-text search across all documents
  • Browse by district for local requirements
  • Browse by topic (applications, training, maintenance, etc.)
  • Browse by role (homeowner, installer, engineer, etc.)
  • County lookup to find your local health district
  • Zero failed downloads during collection
  • 97% extraction success rate (72/74 PDFs)
  • All diagrams preserved at original resolution
  • Comprehensive metadata for every document

This is a living resource. Future updates will include:

  • Additional districts as we expand collection efforts
  • Regular updates for new guidance and rule changes
  • Enhanced search with filters and faceted navigation
  • Interactive tools for common calculations and assessments
  • Community contributions for local insights and experiences

⚠️ This archive represents a snapshot collected in November 2025. Always verify:

  • Current fees and application requirements with your local health district
  • Latest form versions before submission
  • Active installer and pumper lists
  • Recent regulatory updates or rule changes

This knowledgebase was created to address a critical need: Idaho's septic system regulations are spread across 7 independent health districts, each with their own documentation, procedures, and requirements. No single resource existed to help homeowners, professionals, and researchers navigate this complex landscape.

Our mission is to make this vital information accessible, searchable, and useful for everyone who needs it.

Questions or feedback? Contact Ryan Malloy at ryan@supported.systems


Ready to explore? Check out our Quick Start Guide or Browse by District.