Indiana Administrative Code › Title 410 - INDIANA DEPARTMENT OF HEALTH › Article 6 - SANITARY ENGINEERING › Rule 10.1 - Commercial On-Site Sewage Systems › Section 10.1-61 - Minimum separation distances

Current through July 10, 2024
Authority: IC 16-19-3-4; IC 16-19-3-5
Affected: IC 16-19-3-4
Sec. 61.
(a) All
				septic tanks, dosing tanks, lift stations, and soil absorption systems shall be
				located in accordance with Table II, as follows:
Table II - Minimum Separation Distances
Minimum Distance in Feet from
Septic Tank and Other Treatment Units, Dosing Tank,
							 Lift Station
Soil Absorption System
Private water supply
							 well1,2
100
100
Private geothermal well1,2
100
100
Commercial water supply
							 well1
100
100
Commercial geothermal well1
100
100
Public water supply well, lake,1, 3,
								4 or reservoir1, 3, 4
200
200
Other pond, retention pond, lake, or
							 reservoir3
50
50
Storm water detention area3,
								5
25
25
River, stream, ditch, or drainage tile 
							 6
25
25
Buildings, foundations, slabs, garages, patios, barns,
							 aboveground and belowground swimming pools, retaining walls, closed loop
							 geothermal systems, roads, driveways, parking areas, or paved sidewalks
10 
							 7
10 
							 8
Front, side, or rear lot lines
5
5
Water lines continually under pressure
10
10
Suction water lines
50
50
1 The distances enumerated
							 shall be doubled for soil absorption systems constructed where there exist
							 horizons, layers, or strata within thirty-four (34) inches of the ground
							 surface with a soil loading rate greater than seventy-five hundredths (0.75)
							 gallons per day per square foot as determined from Table V of section 78(b)(8)
							 of this rule, unless that hazard can be overcome through on-site sewage system
							 design.
2 The separation distance to a
							 private water supply well abandoned in accordance with
							 312 IAC 13-10-2(e)
							  may be reduced to ten (10) feet.
3 Measured from the normal or
							 ordinary high water mark.
4 See subsections (b) and (c).
5 Storm water detention area:
							 area designated for the temporary detention of storm water, with the outlet
							 located at the lowest elevation of the depression.
6 See section 63(f) of this
							 rule for subsurface drainage system separation.
7 Patios without footers,
							 aboveground swimming pools, and sidewalks may be located within ten (10) feet
							 of septic tank, as long as no required access points are obstructed.
8 A minimum separation of ten
							 (10) feet is required on all sites.
(b)
				A commercial on-site sewage system shall not be located within two hundred
				(200) feet of a public water supply lake or reservoir. However, any commercial
				on-site sewage system that includes secondary treatment and meets the following
				requirements may be less than two hundred (200) feet, but not less than fifty
				(50) feet, from the normal or ordinary high water mark of the lake or
				reservoir:
(1) Meets the minimum requirements
				of section 68(h)(1) through 68(h)(3) of this rule; or
(2) Is a system component independent of the
				soil absorption field that meets the effluent quality requirements of NSF/ANSI
				for certification under Standard 40 as a Class I plant, and that is approved by
				the department under the provisions of section 49(h) of this rule.