Onsite Wastewater Help in Greenville, Mississippi

Mississippi treats a new onsite wastewater system as a site-specific decision. The state application process considers the property plan and a soil-and-site evaluation rather than assuming one system type fits every Washington County lot.

For routine service on an existing system, start with symptoms and maintenance history. For new installation or replacement, start with documents and the state process.


Existing system: what is happening now?

New or replacement system: prepare the property information

The Mississippi State Department of Health’s onsite wastewater process asks for property documentation and a plot plan. Its evaluation considers the actual site before issuing system options or a permit recommendation.

Property description

Have the deed or survey and an accurate site address or directions.

Plot plan

Show the home, driveway, well, water features, easements, and planned improvements.

Qualified installer

Confirm current certification and the inspection or final-approval steps that apply.

Flooding is not a complete diagnosis.

Wet conditions can affect what is visible and how a system performs, but a provider or evaluator must determine the actual cause on the property.

Three different calls

“The tank may be due for pumping.”

Provide tank and household details rather than relying on a universal interval.

“The system has symptoms.”

Request evaluation without assuming pumping alone will correct the problem.

“I am changing the property.”

Ask MSDH and the appropriate local offices what must be reviewed before work begins.

Route a Greenville, MS service request
Call 877-240-2506

General guidance only. Confirm current application, installation, and inspection requirements with MSDH and the relevant local authority.