MINIMUM SEPARATION DISTANCES FOR ON-SITE SEWAGE SYSTEMS
|
ITEMS REQUIRING SETBACK
|
FROM SEWAGE DISPOSAL
AREA INCLUDING
REPLACEMENT AREA
|
FROM SEPTIC TANK &
OTHER TREATMENT UNITS, EFFLUENT SEWER AND DISTRIBUTION UNITS
|
| 1. Groundwater Supplies |
100'
|
50'
|
| 2. Temporarily Abandoned Wells |
100'
|
50'
|
3. Springs:
* Upgradient
* Downgradient |
50'
100'
|
50'
50'
|
*4. Surface Public Waters:
* Year round
* Seasonal |
100'
50'
|
50'
50'
|
5. Intermittent Streams:
* Piped (watertight not less than 25' from any part of on-site system)
* Un-piped |
20'
50'
|
20'
50'
|
6. Groundwater Interceptors:
* On a slope of 3% or less
* On a slope greater than 3%:
- Upgradient
- Downgradient |
20'
10'
50'
|
10'
5'
10'
|
7. Irrigation Canals:
* Lined (watertight canal)
* Unlined:
- Upgradient
- Downgradient |
25'
25'
50'
|
25'
25'
50'
|
8. Cuts Manmade in Excess of 30" (top of downslope cut):
* Which intersect layers that limit effective soil depth within 48" of surface
* Which do not intersect layers that limit effective soil depth |
50'
25'
|
25'
10'
|
9. Escarpments:
* Which intersect layers that limit effective soil depth
* Which do not intersect layers that limit effective soil depth |
50'
25'
|
10'
10'
|
| 10. Property Lines |
10'
|
5'
|
| 11. Water Lines |
10'
|
10'
|
| 12. Foundation lines of any building, including garages & outbuildings |
10'
|
5'
|
| 13. Underground Utilities |
10'
|
-
|
| * This does not prevent stream crossings of pressure effluent sewers. |
|
|