Official sources checked August 29, 2026

Mobile County, Alabama septic permits and requirements

Alabama permit framework

Alabama requires a permit from the local health department before installing a new onsite sewage disposal system or repairing an existing system. State guidance calls for site and soil evaluation, permit review, licensed installation, and health-department approval before use.

Existing septic records

ADPH says property owners or their agents may request existing septic-system information from the local health department. A completed Approval for Use may include a diagram of the installed system.

County onsite division is the permitting authority

Mobile County Health Department states that its Onsite Sewage division regulates permitting, installation, and inspection of residential and commercial onsite sewage disposal systems in Mobile County under the ADPH Onsite Sewage Treatment and Disposal Rules.

Industry licensing and pumper oversight

Mobile County states that persons involved in the onsite sewage disposal industry must be licensed by the Alabama Onsite Wastewater Board. Its Onsite division also regulates septic and sewage tank pumpers and requires annual inspection of pumper trucks before use.

Official sources

• ADPH — Soil and Onsite Sewage Branch
• ADPH — Before Construction
• ADPH — Septic Tank Systems and Records
• Mobile County Health Department — Environmental Health / Onsite Services
• ADPH — County Health Department Locations

SepticScope summarizes public-agency information for planning purposes. The permitting agency's current instructions control if they differ from this guide.