Table 1: Isolation Distances
Row | Potential Source of Contamination | Isolation Distance (in feet) |
1 | Lot lines and easements | 10 |
2 | Any component of a sewage treatment system (STS) or gray water recycling system (GWRS) | 50 |
3 | A leaching pit or drywell that has not been properly abandoned to render it inoperable | 100 |
4 | Watertight vault privies | 50 |
5 | Leaching privies | 100 |
6 | Waste water treatment plant, except a well used by the facility | 300 |
7 | Drainage wells | 100 |
8 | Properly sealed well | 5 |
9 | Existing properly constructed private water system well | 10 |
10 | Existing properly constructed public water system well | outside the sanitary isolation radius of the public water well |
11 | Water wells or boreholes of unknown or unregulated unpermitted construction | 50 |
12 | Vertical open loop geothermal system, sealed with grout materials in compliance with rule 3701-28-09 of the Administrative Code and as documented by a well log on file with the Ohio department of natural resources | 25 |
13 | Horizontal or vertical closed loop geothermal system, utilizing propylene glycol as the heat transfer antifreeze | 25 |
14 | Horizontal or vertical closed loop direct exchange geothermal system with circulating refrigerant or a heat transfer antifreeze other than propylene glycol | 50 |
15 | Horizontal or vertical geothermal system of unknown or undocumented construction | 50 |
16 | Permanent bodies of water such as streams, lakes, ponds | 25 |
Storm water structure or other special conduits or other ditches with intermittent water flows not included in the road right-of-way | 15 | |
17 | Bulk salt storage piles | 100 |
18 | Underground or above ground fuel oil, diesel, chemical or gasoline storage tanks or other refined or unrefined petroleum liquids (less than eleven hundred gallons) | 50 |
19 | Fuel operated motors used for well pumps without secondary containment | 50 |
20 | Underground or above ground fuel oil, diesel, chemical or gasoline storage tanks or other refined or unrefined petroleum liquids (greater than eleven hundred gallons without secondary containment) | 300 |
21 | Natural gas or propane (LP/liquid propane) home heating tanks above or below ground | 20 |
22 | Oil and gas wells or the oil and gas well pad, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 100 |
23 | Municipal solid waste, residual waste, industrial waste, and class I, II, or III solid waste composting facilities, operating or closed, from the boundaries of the entire facility including the permitted boundaries of future waste placement, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 1000 |
24 | Construction and demolition debris solid waste facility, and class IV solid waste composting facilities, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 500 |
25 | A regional storage facility as defined in paragraph (DDDD) of rule 3745-40-01 of the Administrative Code or other bulk storage facility for biosolids (sludge), except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 300 |
26 | Animal waste management facility located at a major concentrated animal feeding facility (AFF)* as defined by division (N) of section 903.01 of the Revised Code, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 300 |
27 | Animal waste management facility located at a large concentrated AFF* as defined by division (M) of section 903.01 of the Revised Code, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 300 |
28 | Animal waste management facility located at a medium concentrated AFF* as defined by division (Q) of section 903.01 of the Revised Code, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 300 |
29 | Animal waste management facility located at an AFF* not meeting the size designation of major, large, or medium concentrated AFF as defined in section 903.01 of the Revised Code, except a well that is used by the facility, which should be constructed at the maximum practical isolation distance | 150 |
30 | Animal housing or holding pens with no grass cover, stables, manure piles, fabricated manure storage and animal waste or treatment buildings not located at an AFF* | 50 |
31 | Land application of septage waste, manure, or biosolids (sludge) stockpile, storage or staging area where the Ohio environmental protection agency has determined the aquifer has a high susceptibility to contamination | 300 |
32 | Surface land application area for septage, biosolids (sludge), commercially land applied manure, or other similar materials previously approved by the Ohio environmental protection agency or the board of health | 200 |
33 | Subsurface incorporation application area using septage, biosolids (sludge), commercially produced manure, or other similar materials previously approved by the Ohio environmental protection agency or the board of health | 100 |
34 | Storage or preparation area for commercial application of fertilizers or pesticides | 150 |
*For the purposes of this rule, "AFF" means "animal feeding facility" as defined in section 903.01 of the Revised Code. |
Replaces: 3701-28-07
Ohio Admin. Code 3701-28-07
Five Year Review (FYR) Dates: 09/20/2024
Promulgated Under: 119.03
Statutory Authority: 3701.344
Rule Amplifies: 3701.344
Prior Effective Dates: 01/01/1981, 01/01/2000, 04/01/2011