Environmental Health Regulations Flashcards
How deep to dig holes for soil samples?
5ft
How much suitable soil must we have above the water table for a drain bed?
24 inches
Minimum inches of suitable soil below grade for a drain field
must have at least 12 inches below grade because you can build a field a maximum of 12 inches above grade
must have ______ inches of suitable soil______ of which must be above grade
24, 12
filled ground must be sampled to a depth of _________ft
5
fill material shall not be allowed over:
unstable soil, peat, muck, and organic material
Designated replacement drain fields shall be:
at least same size as original field and at least 5 feet away from bed and berm
sewer lines shall be constructed of
schedule 40 PVC pipe or cast iron pipe with sealed joints
septic lines below a driveway:
requires 6 in or larger schedule 40 PVC pipes, concentric piping
any sewer line greater or equal to 100 feet or a turn of more than 45 degrees requires a:
sewer cleanout extended to the ground surface
sewer clean outs shall be constructed of:
schedule 40 PVC pipe
aggregate or stone intended for use in a drain field must be:
washed, clean,
a minimum of _____ inches of ____ or other approved material shall be placed between the stone and final cover of a drain field
2, straw
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: Well
50, 50ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: Pressurized water line
10, 10ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: Storm and drainage ditches
25, 25ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: Surface water inc., county drains
50, 50ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: in ground swimming pools
10, 10ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: slope bank(recommended)
10, 25ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: property line(recommended)
10, 10ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: footing drains
10, 25ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: dwelling structure with footing drains
10, 25ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: dwelling structure w/o footing drains
10, 10ft
Isolation distances from Septic Tank / Sewer Line, Isolation distances from drain field: closed loop geothermal system
25, 25ft
distance between lateral lines:
3ft
maximum length of lateral lines
100ft
distance between lateral lines and bed wall
minimum: 12 inches maximum: 24
minimum septic tank capacity: 1-2 bedrooms
1000 gallons
minimum septic tank capacity: 3 bedrooms
1500 gallon, 2 comp.
minimum septic tank capacity: 4 beds
2000, 2 comp.
minimum septic tank capacity: 5 bedrooms
2500, 2 comp.
each additional bedroom over 5 bedrooms add:
500 gal to septic tank size
Drain bed sizing: Sand and Gravel: 1-3 4 5
600, 700, 800
Drain bed sizing: Loamy Sand 1-3 4 5
900, 1050, 1200
Drain bed sizing: Sandy Loam 1-3 4 5
1350, 1575, 1800
Drain bed sizing: Loam, Sandy Clay Loam: 1-3 4 5
1725, 2015, 2305
Drain bed sizing: Silt Loam, Clay Loam 1-3 4 5
1800, 2400, 3000
when sizing for a drain field add _____% for garbage disposal
20
