Make the first conversation useful.
- Ask which DEQ aerobic installer row supports the work.
- Confirm installation or replacement scope for this property.
- Ask which approvals and inspections apply before work starts.
The two-year rule: For a newly installed aerobic system, OAC 252:641-10-3 assigns the first two years of maintenance to the installer at no additional cost to the owner. After that, the owner maintains it or hires someone.
The published state fees are separate from that installer price. See what an aerobic system costs in Oklahoma before the installer's price.