Subsurface Wastewater Team Past Rules

Onsite Sewage Disposal System Requirements For Single Family Dwellings, For Major Revisions to the Rules, 1926 to 2005.

Note: Only revisions in which major changes to content occurred are listed.


1926 | 1934 | 1937 | 1940 | 1946 | 1948 | 1955 | 1960 | 1962 | 1964 | 1966 | 1970 | 1974 | 1982 | 1987 | 1997 | 1999 | 2009

1926

Waterbody Setback: none

Well/Water Supply Setback: none

Soil Test: none

Septic Tank: none

Septic Tank Sizing: none

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Pit Privy

1934

Waterbody Setback: none

Well/Water Supply Setback: none

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: none

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Pit Privy

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1937

Waterbody Setback: none

Well/Water Supply Setback: none

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: none

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Pit Privy

1940

Waterbody Setback: none

Well/Water Supply Setback: none

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: none

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Pit Privy

1946

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

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1948

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

1955

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: none

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

1960

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: per capita and soil type

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

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1962

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: per capita and soil type

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

1964

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: per capita and soil type

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

1966

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: none

Septic Tank: optional

Septic Tank Sizing: per capita

Disposal Area Sizing: per capita and soil type

Type of Disposal Area: Cesspool or Leach Pit, Tile Field, Vee-Plank Trench, Pit Privy

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1970

Waterbody Setback: 60

Well/Water Supply Setback: 100

Soil Test: Percolation Test

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Percolation Rate

Type of Disposal Area: Vee Plank Trench, Pit Privy, Leach Field, Leach Trench

1974 The July, 1974 Rules are available for downloading. There are four parts, due to file size considerations. (pdf files)

1974 Part 1 1974 Part 2 1974 Part 3 1974 Part 4

Waterbody Setback: 100

Well/Water Supply Setback: 100

Soil Test: Site Evaluation

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Soil Profile and Drainage

Type of Disposal Area: Chamber, Pit Privy, Leach Field, Leach Trench, Mound, Evaporation Bed

1982

Waterbody Setback: 100

Well/Water Supply Setback: 100

Soil Test: Site Evaluation

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Soil Profile and Drainage

Type of Disposal Area: Chamber, Pit Privy, Leach Field, Peat System

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1987

Waterbody Setback: 100

Well/Water Supply Setback: 100

Soil Test: Site Evaluation

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Soil Profile and Drainage

Type of Disposal Area: Chamber, Pit Privy, Leach Field, Peat System

1997

Waterbody Setback: 100

Well/Water Supply Setback: 100 feet private/300 feet public

Soil Test: Site Evaluation

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Soil Profile and Drainage

Type of Disposal Area: Chamber, Pit Privy, Leach Field

1999

Waterbody Setback: 100

Well/Water Supply Setback: 100 feet private/300 feet public

Soil Test: Site Evaluation

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Soil Profile and Drainage

Type of Disposal Area: Chamber, Pit Privy, Leach Field, Engineered Peat System, Gravel-less Tubes and Beds, Drip Irrigation

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2009

Waterbody Setback: 100 feet/200 feet/300 feet (engineered)

Well/Water Supply Setback: 100 feet/200 feet/300 feet (engineered & public supply)

Soil Test: Site Evaluation

Septic Tank: Required

Septic Tank Sizing: Bedroom/Specific use

Disposal Area Sizing: Soil Profile and Drainage

Type of Disposal Area: Chamber, Pit Privy, Leach Field, Engineered Peat System, Gravel-less Tubes and Beds, Drip Irrigation

Authorized first time systems outside of the SLZ if there is 9 inches of suitable soil.

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