Design Aids, Maintenance and Inspections

Design Aids

• Consultant Reports Transmittal Checklist New!
• Consultants Reports -- Guidance Document
• Design of Pressure Manifold
• Pressure Manifold Schematics
• LPP Introduction
• LPP Design Recommendations
• Septic Tank Effluent Pump (STEP) Sys. Design
• Pump Suppliers
• Sand Filter Design
• Sand Suppliers for Sand Filters
• Teritary Treatment Systems
• Pipe Volumes
• Flow Through Orifices
• Friction Loss in Pipes
• Pump & Haul SOP and Design Guidelines
• Typical Setback Requirements for al Systems
• Design Flow Reduction Request Checklist
• Alternative Pipe Materials for Use in Septic Systems
• Use of Hancor Sure-Lok F477 Pipe for Gravity Supply Lines under Driveways
• Pump Tank and Components [PDF] [Word]
• Use and Permitting of Incinerating Toilets
• Design of LPP Systems in North Carolina

Design Programs*

• Colorado Mounding Program
  • Users Guide for Colorado Mounding Program
• LPP Design
• Pressure Manifold Design
• Groundwater Mounding Program
• Drip Hydraulic Design Program
  • Main
• Top Fed

*Note: These programs are Zip files, so you must save them to your computer in order to use them.

Maintenance and Inspections

• Groundwater Report Form
• Inspection of Engineered Systems
• Inspection of Wastewater Treatment Plant
• Sub-surface and Wastewater Operators
• Sub-surface Wastewater Monitoring Form
• Pre-occupancy Report - Migrant Housing (revised!)
• Tank Yard Inspection Form
• Pump System Checklist and Schematic
• LPP Inspection Form
• LPP Monitoring Visits
• Wastewater Treatment Plant Inspection Form Template
• Subsurface System Inspection Form Template
• O&M Service Provider Checklists
  (Recommended by the Consortium of Institutes for Decentralized Wastewater Treatment)

Private Wells

• Inspection Checklist for Private Wells