HomeMy WebLinkAboutMiscellaneous PLANNER 7/28/2011
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Department of Environmental Quality
Water Quality Division
TABLEl
OAR 340-071-0220
MINIMUM SEP ARA nON DISTANCES
From From Septic Tank and
Subsulface Other Treatment Units,
Items Requiring Setback Absorption Area Effluent Sewer and
Including Distribution Units
Replacement Area
1. Groundwater Supplies and Wells. "100' 50'
2. Springs:
. Upgradient. 50' 50'
. Downgradient. 100' 50'
**3. Sulface Public Waters:
. Year round. 100' 50'
. Seasonal. 50' 50'
4. intermittent Streams:
. Piped (watertight not less than 25'
from any part of the on-site 20' 20'
system). 50' 50'
. Unpiped.
5. Groundwater Interceptors:
. On a slope of 3% or less. 20' 10'
. On a slope greater than 3%:
" Upgradient. 10' 5'
" Downgradient. 50' 10'
6. Irrigation Canals:
. Lined (watertight canal). 25' 25'
. Unlined:
" Upgradient. 25' 25'
" Downgradient. 50' 50'
7. Cuts'Manmade in Excess of 30 Inches
(top of downslope cut):
. Which I ntersect Layers that limit
Effective Soil Depth Within 48 50' 25'
Inches of Sulface.
. Which Do Not Intersect Layers that 25' 10'
Limit Effective Soil Depth.
8. Escarpments:
. Which Intersect Layers that Limit
Effective Soil Depth. 50' 10'
. Which Do Not Intersect Layers that
. Limit Effective Soil Depth. 25' 10'
g. Property Lines. 10' . 5'
10. Water Lines. 10' 10'
11. Foundation Lines of any Building,
Including Garages and Out Buildings. 10' 5'
12. Underground Utilities. 10' -
" 50-foot setback for wells constructed with special standards granted by WRD.
**This does not prevent stream crossings of pressure effluent sewers.
Onsite Program
page 071-111
OAR ch. 340, div. 071 (01-04-10)
Date: f1eceived:_7pg /~II
Planner: AL /