Septic installation and replacement in Greene County, Missouri
Greene County is the county where the ground itself writes the rules. Springfield sits on the Springfield Plateau, and the county has mapped roughly two and a half thousand sinkholes within it, so the septic code here is built around karst in a way no other Missouri county code is. Your site plan has to show sinkholes, springs and caves near the proposed system. A homeowner cannot design their own system here at all: a new residential system must be designed by a soil scientist, professional engineer, registered sanitarian or geologist. And the permit does not come from the health department, which is the most common wrong assumption about this county.
Who issues a septic permit in Greene County, MO?
The Greene County Building Regulations. That is the office to call before anything else, because in Missouri the permitting authority is not the same kind of agency in every county, and assuming it is the health department wastes a week in the counties where it is not.
Phone (417) 868-4015. Their page: Greene County Building Regulations.
Source: Missouri Department of Health and Senior Services, onsite wastewater construction permit authority lookup for Greene County, read 2026-08-26. Fees, forms and requirements change, and this county is the only current source for its own.
What does Greene County require beyond the state standard?
- Onsite wastewater systems require a permit for installation of a new system and for repair or replacement of an existing one. Permits are obtained from the Building Regulations department, while plan review, site evaluation and inspections are handled by the Resource Management Environmental division on (417) 868-4147. Source: Greene County Resource Management, Environmental, read 2026-08-26.
- The county standards were adopted by the Greene County Building Commission and the County Commission as part of the building code for the unincorporated areas of the county, under sections 701.035 and 701.047 of Missouri statute. Source: Greene County Regulations and Standards for On-Site Wastewater Systems, read 2026-08-26.
- All new residential onsite wastewater systems must be designed by a soil scientist, professional engineer, registered sanitarian or geologist, so a homeowner cannot design their own. Source: Greene County Regulations and Standards for On-Site Wastewater Systems, read 2026-08-26.
- The site plan must show the location of springs, sinkholes or caves within proximity to the required setback distances, so karst mapping is a required part of the drawing rather than an optional note. Source: Greene County Regulations and Standards for On-Site Wastewater Systems, read 2026-08-26.
- County setbacks include one hundred feet from a sinkhole rim for a tank, disposal area or lagoon alike, two hundred feet from a spring, and three hundred feet from a public water supply well. Source: Greene County Regulations and Standards for On-Site Wastewater Systems, setback table, read 2026-08-26.
Missouri lets a county adopt standards more restrictive than the state's, so a requirement here is not evidence of the same requirement one county over.
Source: Missouri Department of Health and Senior Services, Onsite Wastewater Treatment, read 2026-08-26.
What is the ground like in Greene County?
Deep Ozark karst, and here it is the whole story. Greene County sits on the Springfield Plateau on Mississippian limestone that dissolves, and the US Geological Survey has recorded roughly 2,500 sinkholes located within the county’s karst terrane. Shallow soil over fractured, solution-widened limestone means effluent can reach groundwater fast and with little filtration, which is exactly why the county sets setbacks from karst features that the state table does not contain.
That matters because the soil decides the system. A standard system needs at least one foot between the trench bottom and the limiting layer or seasonal high water table, rising to four feet to groundwater or bedrock in highly permeable soils and in cherty clay soils in areas of severe geological limitations, and a percolation rate slower than sixty minutes per inch pulls a registered engineer onto the design.
The soil evaluation is what settles it for your particular lot.
Source: 19 CSR 20-3.060(5)(A)2., Missouri Code of State Regulations, read 2026-08-26.
Which towns does this cover?
Greene County has Springfield as its county seat. Places served include Springfield, Republic, Willard, Battlefield, Strafford, Ash Grove, Fair Grove, Walnut Grove, Rogersville, Bois D'Arc, Ebenezer, Turners. Anywhere in the county not on a public sewer is on a system this page applies to.
Who is allowed to do the work here?
An installer registered with the Missouri Department of Health and Senior Services. That is a state requirement rather than a county one, and it applies wherever you are. Some counties add their own licensing on top of it, which is one more reason to ask the permitting authority what they require before you sign anything.
How to check an installer's registration takes one phone call.
Source: Section 701.031, Revised Statutes of Missouri, read 2026-08-26.
What we could not confirm for this county
The county publishes no septic permit fee amount online: its code says fees are as adopted by the county commission and that schedules are available in the Building Regulations department, so no figure is stated here. The code edition read is dated January 2003 and whether a newer edition exists was not established. The standards cover unincorporated Greene County, so property inside Springfield or another city may answer elsewhere.
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Tell us the county and the jobLast reviewed 2026-08-26.