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Septic Inspections When Buying or Selling in Rankin County
A septic problem found a week before closing is a negotiation. Found a week after, it is yours.
Selling or buying in Rankin County: what Mississippi asks for
On Rankin County clay, ask the inspector to look at the tank joints and the line between house and tank as well as the field: shrink-swell soil works on all of them. The inspection itself is triggered by the change of water account under Rule 1.2.2.
A sale can trigger an inspection here. Under MSDH Rule 1.2.2 a change in the party responsible for the water account after a change of ownership is a “connection”, and an existing system is inspected at that point unless the property is exempt under Miss. Code §41-67-6(7). Single-family inspections are done by MSDH environmentalists or board-recognized Certified Installers; an aerobic unit must be checked by an installer authorized by its manufacturer, with proof of a continuous maintenance agreement.
MSDH’s existing-system inspection form lists a $125 fee, and says that if a malfunction is found the owner gets a Permit/Recommendation and 30 days to start corrective work. The form is dated 2017, so confirm the current fee with the On-Site Wastewater call center, 1-855-220-0192.
County office: Rankin County Health Department, 401 Parkway Drive, Pearl, MS, 601-420-4959; Rankin is in MSDH’s Central environmental region.
Sources: USDA-NRCS Soil Data Access (SSURGO), septic tank absorption field ratings, queried 2026-10-23; MSDH, Title 15 Part 3 Subpart 77, Individual On-Site Wastewater Disposal Systems; MSDH, existing-system inspection application (form 4709); MSDH: On-Site Wastewater; MSDH: county health departments, Central region. Checked October 2026.
What an inspection should cover
- Finding the system and checking it matches what is on file
- Opening the tank: sludge and scum levels, baffles, structure
- Running water through it, and walking the field for ponding or odour
- On a powered system: compressor, pumps, floats, alarms, disinfection
- The paperwork, which is often what decides the deal
A sound system with no approval on file, or a lapsed service obligation, is still a problem, and documents cannot be produced retrospectively. Request an inspection quote →
Selling
Find the permit, approval, drawings, service reports and pump-out receipts now; pump the tank before the inspection so the baffles and outlet can be seen; bring any service contract current; and price anything obvious before a buyer’s inspector finds it.
Buying
Use an inspector independent of the seller, ask for the full document history, and ask when the drainfield went in: a field at the end of its life is a five-figure item that no report will call broken, because on the day it is not.