-
Commercial Plan Review OSS Designer Workshop
Material Specifications
Denise H. WrightMay 9, 2017
PresenterPresentation Notes30 minutes
-
Piping: Materials List & Design Elements
PresenterPresentation NotesMaterial specifications: material,
diameter, length, ASTM #, type of joint
-
Soil Absorption Field SpecsTrench Summary
# Length Dia. ASTM# Elevations Trench Depth
Prox Mid Distal TrenchBottom
Min. Max.
1 100’ 4” D 2729 986.70 986.78 986.87 985.70’ 12” 14”
2 100’ 4” D 2729 985.58 986.60 986.66 985.50’ 13” 14”
3 100’ 4” D 2729 986.30 986.44 986.47 985.30’ 12” 14”
4 100’ 4” D 2729 986.33 986.38 986.40 985.25’ 13” 14”
5 100’ 4” D 2729 986.35 986.40 986.40 985.25’ 13” 14”
-
Drainage:Plan Submittal Ideas
Drainage Depth SummaryGround Invert Depth
A 986.84 982.60 50”
B 986.75 982.34 53”
C 986.34 982.10 50”
D 986.15 981.80 52”
E 981.50 981.50 0
B
E
DC
A
120’
53’
40’
Drainage Slope SummaryLength Slope
AB 120’ 0.22%
BD 53’ 1.01%
AC 53’ 0.94%
CD 120’ 0.25%
DE 40’ 0.75%
-
Material Key
-
Septic Tanks: Specifications “ISDH Approved” Manufacturer
Materials Capacity/Chamber Connectors Components Gallon per
inch*
PresenterPresentation NotesManufacturer’s cut sheets: number of
compartments, access ports, dimensions
Components: risers, “plugs”, lidsUnique sites may call for
unique design: lake front property with limited access to yards
(carrying the product to the site)
-
Dosing Tank: Material and Design specs Manufacturer Materials
Capacity/Chamber Connectors Gallon per inch* Access for service
Components
PresenterPresentation NotesKnow which manufacturers you prefer
in different regions.Be familiar with their products and product
specs.
Pump submergedSafety “plug”Greater than 750 gpd= Duplex pumps=
guide rails required (section 73)Access opening that will
accommodate installation and servicing of 2 pumps
Components(ALL LABELED): quick disconnect, check valves
(horizontal position), risers, �piping connections—Manufacturer and
Model
-
Distribution Boxes
Manufacturer Materials Specs Risers outlet
inlet
Baff
le
1”
2”
1”
PresenterPresentation NotesSections 74 & 83The intent of the
plan submittal is NOT for the designer to demonstrate that they can
interpret the Rule but rather….To identify a component which is in
the marketplace that is in compliance with the Rule.The designer
then demonstrates its location and function within the treatment
train.
If a project requires 6 trenches make sure the distribution box
identified has at least 6 outlets.
-
Soil Absorption Field Trench
2” 10-36”
18” – 36” Trench Width
6”
Depth Width Material Specs◦ Aggregate◦ Pipe◦ Barrier material◦
Soil cover
Vegetative cover
24”
36”
PresenterPresentation NotesAggregate=type and INDOT
#Pipe=Diameter, Length, Joints, ASTM#Barrier Material= manufacturer
and Product Number
Vegetative Cover= Crowning over the entire SAF
-
Perimeter Drain Surface elevation
from the site Invert elevation
from TDS Outlet elevation
site confirmed Proper depth, slope
and materials confirmed Spec the pipe in a materials key
PresenterPresentation NotesIn a table with corners marked A-D
would be my preference. Easy to communicate with designer, ISDH,
LHD, and installerOutlet confirmed whether it is daylight or an
existing tile.If a tile: open, flowing, in good condition and
adequate depth.
-
Hydraulic Profiles
Treatment Train◦ Existing/finished grade◦ Inlet and outlet
inverts for components◦ Slope of piping (elevations and
lengths)
-
Hydraulic Profiles
Drainage◦ Perimeter segments◦ Through to outlet
-
Denise H. [email protected]
mailto:[email protected]
Commercial Plan Review OSS Designer WorkshopPiping: �Materials
List & Design ElementsSoil Absorption Field SpecsDrainage:�Plan
Submittal Ideas Material KeySeptic Tanks: SpecificationsDosing
Tank: �Material and Design specsDistribution BoxesSoil Absorption
Field TrenchPerimeter DrainHydraulic ProfilesHydraulic
ProfilesSlide Number 13
