TABLE I
Septic Tanks
| ||
---|---|---|
Number of Bedrooms
|
Minimum Capacity
(gallons)
| |
4 or less
|
750
| |
5
|
900
| |
6
|
1,100
| |
7
|
1,300
| |
8
|
1,500
| |
12
|
2,000
|
NOTE: Increase minimum liquid capacity by 50%
when garbage disposal added.
|
TABLE II
Disposal Fields
| |||
---|---|---|---|
Average Time Required for Water to Fall
1 Inch
(minutes)
|
Individual Dwellings Minimum Trench Bottom
per Bedroom
(square feet)
|
Other Than Individual Dwellings Minimum
Bottom Area per Gallon per Day
(square feet)
| |
5 or less
|
90
|
0.60
| |
5 to 8
|
110
|
0.70
| |
8 to 12
|
130
|
0.90
| |
12 to 15
|
150
|
1.00
| |
15 to 20
|
180
|
1.20
| |
20 to 30
|
240
|
1.60
| |
30 to 40
|
290
|
2.00
| |
Over 40
|
Not acceptable
|
Not acceptable
|
NOTE: Increase tile field by 33% when automatic
washer is installed. Percolation tests should not be made in frozen
ground.
|
TABLE III
Seepage Pits
| |||
---|---|---|---|
Percolation Test
(minutes per inch)
|
Dwellings Effective Absorp- tion Pit Wall
Area Required per Bedroom
(square feet)
|
Other Than Dwellings Effective Absorp-
tion Pit Wall Area Required per Gallon per Day
(square feet)
| |
5 or less
|
60
|
0.40
| |
5 to 8
|
70
|
0.50
| |
8 to 12
|
80
|
0.55
| |
12 to 15
|
90
|
0.60
| |
15 to 20
|
110
|
0.75
| |
20 to 30
|
150
|
1.00
| |
30 to 40
|
200
|
1.25
| |
Over 40
|
Not acceptable
|
Not acceptable
|