Greene County has a few septic system regulations that vary from the state of Missouri. We've listed a few of them below.
NOTE: It's important to understand that some regulations may vary per circumstance.
Greene County Septic System Specifications
- Minimum septic tank size is 1,000 gallons for any residence up to and including a 3 bedroom home.
- All residential systems are sized at the rate of 120 gallons per bedroom.
- Standard absorption trenches are not permitted in soils with a loading rate of less than 0.2 gallons per day.
- All absorption field sizing is based upon information obtained from a soil evaluation performed by qualified individuals.
- Absorption areas are based on soil loading rates with a minimum requirement of 600 sq. ft. for any residence.
- Disposal area setback to property line = 10 ft.
Source: greenecountymo.gov (pdf)
Anyone performing septic system installation or repairs in Springfield, MO must be licensed as an installer with the state of Missouri and Greene County. The only exception is for homeowners performing their own repairs. They are not required to be licensed, but must demonstrate the knowledge needed for the work they are performing and all work is subject to inspection.
Missouri Septic System Regulations Compared To Greene County
The following covers some specifications for the state of Missouri's standard septic system regulations.
Missouri Septic Tank Info
- The sewage tank shall be placed so that it is accessible for the removal of liquids and accumulated solids.
- The sewage tank shall be placed on firm and settled soil capable of bearing the weight of the tank and its contents.
- The sewage tank must be watertight and designed and constructed to withstand all lateral earth pressures under saturated soil conditions with the tank empty.
- The sewage tank must be designed and constructed to withstand a minimum of two feet (2′) of saturated earth cover above the tank top.
- Access to the sewage tank shall be provided over both the inlet and outlet devices and to each tank compartment by means of either a removable cover or a manhole. Where the top of the tank is located more than eighteen inches (18″) below the finished grade.
Missouri Septic Tank Sizes
- 1-3 bedrooms minimum tank size = 1000 gallon tank
- 4 bedrooms minimum tank size = 1250 gallon tank
- 5 bedrooms minimum tank size = 1500 gallon tank
- 6 + bedrooms = calculated gallon tank size
Missouri Septic Tank Setbacks
- Septic tank from private well = 50 ft.
- Septic tank from public well = 300 ft.
- Septic tank from property line = 10 ft.
- Septic tank from cistern = 25 ft.
- Septic tank from spring = 50 ft.
- Septic tank from stream, lake or impoundment = 50 ft.
- Septic tank from open ditch = 25 ft.
- Septic tank from building foundation = 5 ft.
- Septic tank from basement = 15 ft.
- Septic tank from swimming pool = 15 ft.
- Septic tank from water lines under pressure = 10 ft.
- Septic tank from suction water lines = 50 ft.
Missouri Septic System Disposal Area Setbacks
- Lateral lines from private well = 100 ft.
- Lateral lines from public well = 300 ft.
- Lateral lines from property line = 10 ft.
- Lateral lines from cistern = 25 ft.
- Lateral lines from spring = 100 ft.
- Lateral lines from stream, lake or impoundment = 50 ft.
- Lateral lines from open ditch = 25 ft.
- Lateral lines from building foundation = 15 ft.
- Lateral lines from basement = 25 ft.
- Lateral lines from swimming pool = 15 ft.
- Lateral lines from water lines under pressure = 10 ft.
- Lateral lines from suction water lines = 100 ft.
The above information is sourced from MO Dept. of Health & Senior Services (pdf), which you can view to find more information about the regulations that Missouri has in place.
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