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Eastern Idaho Public Health

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📍 Service Area

Eastern Idaho - 8 Counties

  • Bonneville County Seal Bonneville County - Pop. ~123,000 (Idaho Falls - largest city) • GIS Map →
  • Clark County Seal Clark County - Pop. ~790 (Idaho's smallest county, Dubois) • GIS Map →
  • Custer County Seal Custer County - Pop. ~4,400 (Challis, mountain communities) • GIS Map →
  • Fremont County Seal Fremont County - Pop. ~13,000 (St. Anthony, Island Park) • GIS Map →
  • Jefferson County Seal Jefferson County - Pop. ~31,000 (Rigby, growing Rexburg area) • GIS Map →
  • Lemhi County Seal Lemhi County - Pop. ~8,000 (Salmon, remote mountains) • GIS Map →
  • Madison County Seal Madison County - Pop. ~53,000 (Rexburg, BYU-Idaho) • GIS Map →
  • Teton County Seal Teton County - Pop. ~13,000 (Driggs, Victor - Teton Valley) • GIS Map →

Total Population: ~246,000

  • Collection Date: November 4, 2025
  • Document Count: 10 PDFs (2.9 MB)
  • Most Recent Updates:October 2025 (Homeowner Installation Guide)
  • Source: Eastern Idaho Public Health

⭐ Most Current Documentation in Entire Knowledgebase

Section titled “⭐ Most Current Documentation in Entire Knowledgebase”

Eastern Idaho has the newest documents across all 7 health districts:

  • October 2025: Homeowner Installation Guide (most recent in collection!)
  • September 2025: Aggregate list, separation distances
  • July 2025: Installer and pumper applications
  • June 2025: Permit applications

This collection represents the bleeding edge of Idaho septic regulations and forms.

The comprehensive Homeowner Installation Guide (October 2025, 555 KB) is one of the most detailed DIY resources, perfect for property owners installing their own systems.

The 2025 Drainfield Aggregate List (September 2025) ensures installers use currently approved materials meeting district standards.

Quick-reference separation distances chart (September 2025) provides field-ready guidance for installers and inspectors.

All documents open in a new tab. Click any PDF below to view the original document.

Eastern Idaho Public Health serves diverse communities from urban Idaho Falls to remote mountain valleys:

  • Upper Snake River Plain (Idaho Falls metro area)
  • Teton Valley (Jackson Hole gateway, resort communities)
  • Remote mountain communities (Lemhi, Custer counties)
  • Agricultural areas (Jefferson, Fremont - potatoes, grain)
  • University town (Madison County - BYU-Idaho in Rexburg)
  • Growing population (suburban expansion from Idaho Falls)
  • High reliance on septic systems outside Idaho Falls city limits
  • Seasonal tourism (Island Park, Teton Valley)
  • ⭐ Complete Guide: October 2025 Homeowner Installation Guide
  • Permit Application: June 2025 application packet
  • Setback Requirements: September 2025 separation distances
  • Material Selection: 2025 approved aggregate list
  • Licensing: July 2025 installer application
  • Material Sourcing: Current approved aggregate list with contacts
  • Field Reference: Separation distances quick chart
  • Compliance: Most current regulatory requirements
  • Licensing: July 2025 pumper application
  • Disposal Sites: Septage disposal approval forms
  • Regulatory Compliance: Current standards
  • Feasibility Assessment: Speculative evaluation forms
  • DIY Planning: Homeowner installation guide for cost estimation
  • Setback Verification: Separation distances chart
  • Site Planning: Speculative evaluation procedures
  • Non-Residential Projects: Letter of intended use requirements
  • Connection Approvals: Existing system connection forms
  • Design Standards: Separation distances and specifications
  • Material Standards: Approved aggregate requirements
  • Flow Calculations: Non-residential wastewater guidance

Eastern Idaho maintains the most current documentation among all Idaho health districts:

Timeline of Updates:

  • October 2025: Homeowner Installation Guide (most recent!)
  • September 2025: Aggregate list, separation distances
  • July 2025: Installer and pumper applications
  • June 2025: Permit application packet
  • February-March 2025: Supporting forms

All documents include revision dates making it easy to verify you're using current versions.

Eastern Idaho's unique geography creates specific septic system challenges:

  • Seasonal population swings
  • High groundwater in some areas
  • Premium property values
  • Stricter environmental expectations
  • Limited installer availability (Lemhi, Custer counties)
  • Transportation costs for materials
  • Challenging site conditions
  • DIY installation more common
  • Shallow groundwater concerns
  • Volcanic soils
  • Aquifer protection priorities
  • Agricultural chemical interactions
  • Student housing density
  • Rental property systems
  • Maintenance compliance challenges

Eastern Idaho's collection is invaluable because:

  1. Most current forms - October 2025 updates across the board
  2. Homeowner DIY emphasis - Detailed installation guide
  3. Field-ready references - Quick separation distance charts
  4. Material standards - Current 2025 approved sources
  5. Complete lifecycle - Application through approval documentation

Eastern Idaho Public Health

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Start with the October 2025 Homeowner Installation Guide - it's the most comprehensive DIY resource in the entire knowledgebase and walks through every step.

Use the September 2025 Approved Aggregate List - it has current contact information for all approved suppliers, saving you research time.

Print the Separation Distances chart - it's formatted as a quick reference and will save time on job sites.


Collection archived November 4, 2025. Features the most current documentation in the entire knowledgebase (October 2025). Always verify requirements with the district, though these are likely the newest forms available.