77 Ill. Adm. Code 905.APPENDIX A
A Illustrations and Exhibits
Section 905.APPENDIX AÂ Â Illustrations and Exhibits
Section 905.ILLUSTRATION DÂ Â Location of Components of
Private Sewage Disposal Systems
MINIMUM DISTANCE
ALLOWABLE FROM
1,2
Artificial Drain
COMPONENT PART OF SYSTEM
Cistern Well, or Suction Line from Pump To Well
Water Supply Line
3
Pressure
Lake, Stream In ground Swimming Pool or Other Body ofÂ
Water
Property Dwelling
Property Line
4
FEET
FEET
FEET
FEET
FEET
FEET
Building Sewer
5
50
10
25
–
–
–
Septic Tank or
Aerobic Treatment Plant
50
10
9
25
5
5
–
Distribution Box
75
10
25
10
5
–
Subsurface
Seepage System
75
25
25
10
5
10
Sand Filter
75
25
15
10
5
10
Privy
75
25
25
20
5
10
Waste
Stabilization Pond
75
25
25
20
5
10
Surface
Discharge Effluent Line
50
10
–
–
5
–
Effluent Receiving
Trench
75
25
15
10
5
10
Treated
Effluent Discharge Point
6
50
10
−
20
25
25
Class V
Injection Wells
7
200
8
25
25
10
5
10
1
These
distances have been determined for use in clay, silt and loam soils only.
The minimum distances required for use in sand or other types of soil shall
be determined for the proposed private sewage disposal system and approved
by the Department. Approval will be given if the Department determines that
the soil will provide treatment of the sewage.
2
For
separation distances to closed loop wells, see 77 Ill. Adm. Code 920.180.
3
See Section 905.20(d) for additional details on water
line and sewer separation.
4
If a common property is used, the boundary of the
common property shall be used.
5
The building sewer or surface discharge effluent line
may be located to within 10 feet of a well or suction line from the pump to
the well when cast iron pipe with mechanical joints or Schedule 40 PVC pipe
with watertight joints is used for the building sewer or surface discharge
effluent line.
6
Any surface discharging system installed, repaired or
renovated after January 1, 2014.
7
Class V Injection Wells are defined in Illinois
Pollution Control Board rules. They are typically a shallow well used to
place fluids directly below the land surface. See, e.g., 35 Ill. Adm. Code
704.105. 704.106 and 704.280.
8
A lesser separation distance may be obtained with
approval or a waiver from IEPA.
9
There shall be 25 feet separation from public water
supply water mains and water service lines. The terms public water supply,
water main and water service line shall have the same meaning as in the
Illinois Pollution Control Board's Public Water Supplies rules. See, e.g.,
35 Ill. Adm. Code 653.118 and 653.119.