SPRC for Webxls - Hendricks County Government

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					                                                Site Plan Review Calculations
Permit Number:                                                                Name:                                               DATE:


This color requires information input                                                     Required Footage
This color indicates a calculated field                                                     #DIV/0!            #DIV/0!
                                                                                          Depth to Limiting Layer:
Elev High Side Elev Low Side                                                              Depth to Water Table:
                                                      0 ft of fall                        SLR
Width of Field                              #DIV/0!                                       Number of Bedrooms
                                            #DIV/0!
   #DIV/0!

Dose Tank                                                                             Dose Volume                        0 Gallons/Day
                    Gal/Ft of Depth                                         Size of Pipe Length of Pipe                  0 Gallons of Drainback
                                                                                                                         0 Dose Volume Required
                                                                                                               #DIV/0!     Storage Required
                                                                                                                      0.00 Proposed Storage Volume

                                       D-Box Invert Off Position On Float
Elevations:
Static Head Loss                                0.00 Feet
Friction Loss                               #DIV/0! Feet                                            Pump should pump                       0 gpm
Total Dynamic Head                          #DIV/0! Feet
    #DIV/0!
Ground Elevation Trench Bottom         Diff. In Feet      Diff. In Inches                                 Trench Depth         SSD Depth
                                                      0                 0                                                                24
                                                      0                 0                                 Length of Trench     Number of Trenches
                                                      0                 0
                                                      0                 0                                 Total Square Footage                                 0
                                                      0                 0                                 Square footage required                   #DIV/0!
                                                      0                 0                                 Chambers                                  #DIV/0!
                                                      0                 0
                                                      0                 0                 2.4" of fall is required for 100' of SSD
                                                      0                 0                               Distance in Feet  0                   inches of fall
                                                      0                 0
                                                      0                 0                 Minimum fall required for 25' of gravity sewer is 4"
                                                      0                 0                           Distance in Feet   0            inches of fall
                                                      0                 0

Is an easement required?                                                                  Is the D-box on high side?
Is outlet for SSD a legal drain?                                                          Is there equal distribution?
Is a Right of Way Permit Required?                                                        max depth                      -30 gravity
Are there 3 soil borings in septic field?                                                 max depth                      -24 dosed
Tank Sizes Correct                     Septic                               Dose          Trenches <= 100ft.
Location of Well > 50ft                                                                   Trenches at least 7.5ft on Center
Other Separation Distances                                                                Minimum Subsurface Drain Depth Correct?
Lake > 50' Stream, Ditch or Drainage Tile >25'                                            (24" below deepest trench, 2" into deepest till or 60")
SSD Elevations & Fall Checked                                                             Gravity System 30" Above limiting layer
SSD Terminate with 10' solid walled pipe, rip rap, and animal guard                       Flood Dose System 24" above limiting layer


This Excel Spreadsheet was designed by the Hendricks County Health Department and is utilized for
plan review of proposed onsite wastewater disposal systems. The information on this site is provided
as a public service only. The information here is unofficial and is not a valid reference for any
legal purposes. The spreadsheet design is based upon Indiana Administrative Code 410 IAC 6-8.1.
It is intended to provide guidance and assistance in designing a subsurface gravity flow trench
system, a subsurface dosed trench system, or an above ground sand mound system. It does not
cover every possible situation. The Hendricks County Health Department holds no
responsibility and cannot be held liable for any damages from the use of this document.
                                                        Site Plan Review Calculations
Permit Number:                                                       Name:                                              Date:
This color requires information input                                            Elev High Side   Elev Low Side
This color indicates a calculated field                                                                                              0 ft of fall
                                                                                                                       #DIV/0!
Number of Bedrooms                                                                #DIV/0!
Daily Design Flow                            0 gpd                               Depth to Limiting Layer
Loading Rate of Sand                       1.2                                   Depth to Water Table
Soil Load Rate                                                                   Aggregate Bed Area                                  0 sq.ft
Delivery Line Length                              ft                             Basal Area                            #DIV/0!         sq.ft
Delivery Line Diameter                            in.                         SQRT(DDF*SLR/3)*.83 Aggregate Bed Area/MaxWidth
Static Head                                     0 ft                                     0             #DIV/0!
Manifold Elevation                                               Suggested Aggregate Bed Maximum Width           ft
Off Float Position                                               Suggested Aggregate Bed Length                  ft
LEVEL SITE                                                       Area of suggested Aggregate Bed               0 sq.ft
Total Width of Basal Area             #DIV/0!     ft
width             #DIV/0!        ft                                              SLOPING SITE
width/2           #DIV/0!        ft                                              Total Width of Basal Area             #DIV/0!         ft
                                                                                 width                                 #DIV/0!         ft
End Feed
Length of Lateral End Cap to End Cap                         -3 ft                                Number of Laterals                                     4
Laterals                  -1.5
Diameter of Lateral                             1 inches                         Lateral Flow                                        0 gpm per lateral
                                                                                 System Flow                                         0 gpm
Distribution Lateral Holes Layout
#of Holes =Lateral-1.5/3+x                                                                    Hazen-Williams Equation for Friction Loss
       -1.5         -1                                                                            #DIV/0! ft
         -1          0 number of holes/lateral                                                    #DIV/0!

Rounded System Flow and Diameter of Delivery Line, Length of Delivery Line Rule, Table VIII
Manifold Diameter              inches                             Manifold Length
                                                                0 gpm/lateral
Dosage                       0 gallons                            Volume of Laterals=#from chart*feet of lateral
Volume of Distrib.lateral -0.3 gallons                                    0.045             -6 ft
                                                                                 Drainback of Delivery Line         Delivery Line Diameter
Actual Dose                                     0 gallons                                     0 gallons                              0 inches
Dosage is Unacceptable                                                                              FALSE

Total Dynamic Head                    #DIV/0!     ft                             Dose Tank
                                                                                                  Gal/Ft of Depth
**This system requires a pump to pump about                   0 gpm               #DIV/0!         Storage Required
         at #DIV/0! ft. of head.                                                 Off Float        On Float
Is the mound on contour?                                                                      0                                      0 Storage Proposed
Is the Slope 6% or less?
Aggregate bed width must be between 4 and 10 feet                                Are there 3 soil borings in the field?
Lateral separation must be between 2 and 3 feet                                  SSD Elevations & Fall Checked
Is edge separation of laterals 1 to 1.5 feet?                                    SSD Terminate with 10' solid walled pipe, rip rap, and animal guard
End Separation = 1.5 feet                                                        Is an easement required?
SSD depth required?                                                              Tank Sizes Correct      Septic                                              Dose
(24" below sand, 2" into deepest till or 60")                                    Location of Well > 50ft
Is outlet for SSD a legal drain?                         Other Separation Distances
Is a Right of Way Permit Required?                       Lake > 50' Stream, Ditch or Drainage Tile >25'
No soil horizons within 20" of ground surface .25<SLR >1.25
30 feet of Dispersal Area Required Downslope
Slope is >2% or if the loading rate of the soil in the dispersal area is >.30 or less 50 feet required downslope
Slope is 2% or less and if the loading rate of the soil in the dispersal area is not less than .50 then 30 feet required downslope


This Excel Spreadsheet was designed by the Hendricks County Health Department and is utilized for
plan review of proposed onsite wastewater disposal systems. The information on this site is provided
as a public service only. The information here is unofficial and is not a valid reference for any
legal purposes. The spreadsheet design is based upon Indiana Administrative Code 410 IAC 6-8.1.
It is intended to provide guidance and assistance in designing a subsurface gravity flow trench
system, a subsurface dosed trench system, or an above ground sand mound system. It does not
cover every possible situation. The Hendricks County Health Department holds no

				
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posted:4/13/2010
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