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South Central Public Health District

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📍 Service Area

South Central Idaho - 8 Counties

  • Blaine County Seal Blaine County - Sun Valley resort area • GIS Map →
  • Camas County Seal Camas County - Rural mountain communities • GIS Map →
  • Cassia County Seal Cassia County - Burley area • GIS Map →
  • Gooding County Seal Gooding County - Agricultural region • GIS Map →
  • Jerome County Seal Jerome County - Dairy and agriculture • GIS Map →
  • Lincoln County Seal Lincoln County - Rural farmland • GIS Map →
  • Minidoka County Seal Minidoka County - Historic and agricultural • GIS Map →
  • Twin Falls County Seal Twin Falls County - District headquarters, regional hub • GIS Map →

Total Population: ~200,000

This collection contains the most recent regulatory guidance including:

  • May 2025 rule changes documentation
  • Gravelless systems guidance (emerging technology)

Unique Policies 795 and 799 establish minimum acreage requirements:

  • Policy 795: 1-acre minimum lot size requirements
  • Policy 799: Alternative standards for lots < 1 acre

These policies are not found in other Idaho health districts.

2025 Installer Training Course (20 MB) - one of the largest and most comprehensive training resources in the entire knowledgebase.

"Before You Buy to Build" guide (4.8 MB) - comprehensive property evaluation resource for prospective buyers.

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

South Central Public Health District serves Idaho's agricultural heartland and resort communities:

  • Sun Valley resort area (Blaine County - high-end development)
  • Agricultural dominance (dairy, potatoes, sugar beets, aquaculture)
  • Snake River Plain (fertile volcanic soil)
  • Twin Falls - Regional commercial hub
  • Magic Valley - Major agricultural production area
  • Rural character throughout most of district
  • Varied topography from desert to mountains
  • Pre-Purchase Due Diligence: "Before You Buy to Build" guide
  • Site Evaluation: Understanding soil testing and feasibility
  • Cost Estimation: What to expect for septic installation
  • Red Flags: Warning signs when evaluating properties
  • System Maintenance: EPA guide and checklist
  • Well Care: Disinfection procedures
  • Property Development: Understanding acreage requirements (Policies 795/799)
  • Training: Comprehensive 2025 installer course (20 MB)
  • New Technologies: Gravelless systems guidance
  • Regulatory Compliance: May 2025 rule changes
  • Large Systems: LSAS report requirements
  • Lot Sizing: Policy 795 (1-acre minimum) and Policy 799 (< 1 acre)
  • Subdivisions: Application process and requirements
  • Planning Coordination: P&Z review forms
  • Site Feasibility: Evaluation procedures
  • Buyer Education: "Before You Buy to Build" resource
  • Property Evaluation: Site assessment procedures
  • Disclosure Requirements: Understanding septic feasibility
  • Due Diligence: Checklist and guidance materials

South Central District has unique minimum lot size requirements:

  • Minimum lot size: 1 acre
  • Purpose: Ensure adequate space for system and replacement area
  • Application: Standard residential development
  • For lots: Less than 1 acre
  • Requirements: Enhanced standards, engineering, monitoring
  • Purpose: Allow development on existing small parcels with additional safeguards

These policies recognize the district's mix of agricultural parcels and existing small-lot developments.

The May 2025 Gravelless Systems Guidance addresses cutting-edge technology:

Advantages:

  • Reduced excavation
  • Smaller footprint
  • Faster installation
  • Potential for difficult sites

Requirements:

  • District approval process
  • Enhanced monitoring
  • Manufacturer specifications
  • Installer training

This represents the district's forward-thinking approach to alternative technologies.

Recent regulatory changes reflect evolving best practices and emerging technologies. The May 2025 documents provide the most current guidance available in the entire knowledgebase.

South Central Public Health District

Visit Website →

Headquarters: Twin Falls


Collection archived November 4, 2025. Features the most recent May 2025 regulatory updates. Always verify current requirements with the district.