LaSalle Parish, LA septic permits and regulations

Septic systems in LaSalle Parish, Louisiana are permitted by LaSalle Parish Health Unit under LAC Title 51, Part XIII.

Septic permit program

  • Program type: State Agency
  • Authorized agent: LaSalle Parish Office of Public Health
  • Own septic program: No, uses Louisiana state rules
  • Local rules beyond the state: No
  • Population: 14,791

Permit fee comparison

Average septic permit fee in LaSalle Parish: $100. Louisiana average: $104.

Local rules

County operates under state-level LAC 51:XIII (Louisiana Sanitary Code). Contact local health department for any additional county-specific requirements.

What SepticPro has on file for LaSalle Parish

  • 1 permit fee with sources
  • The agency phone, email and office address
  • Setback distances
  • Soil and perc test requirements
  • Allowed system types
  • System design rules
  • Inspection requirements
  • Maintenance and pumping rules
  • Point-of-sale rules
  • Installer, designer and pumper licensing

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Draw a permit-ready site plan for LaSalle Parish

Enter the address, draw the system on the aerial with the parcel lines and topo, and print it to scale for LaSalle Parish Health Unit. See how SepticPro site plans work.

Other Louisiana counties

Data checked 2026-03-16. Always confirm requirements with LaSalle Parish Health Unit before applying.