HomeMy WebLinkAboutEngineeringa
System Design Criteria
for
Focus Homes
8407 Deland Avenue, Ft. Pierce, FL 32951
Aerobic Treatment Unit
With Drip Irrigation
Prepared By: Todd N. Smith, PE, Inc.
1717 Indian River Boulevard
Suite 302
Vero Beach, Fl. 32960
772-559-3699
I certify that the engineering features of this aerobic system have been designed or
specified by me and conform to engineering principles applicable to such projects. In my
professional judgment, this system, when properly constructed, operated and maintained,
will achieve the established performance standard and comply with all applicable statutes
of the State of Florida and the rules of the Department.
1 WQ*' i
PieP.�� •.�
F� r's2 ce #;4 0 2
Dkte::August 27�,�4,62�t. Z
;�e'e`RO FESsN,�����
'f
Drip Design Calculator
Job Name/Homeowner- . Focus Homes
Address: 8407 Deland Avenue; Ft. Pierce, FL 32951
Pennit Agency St. Lucie County Health Department
Installer Name Brian Davis Septic
Designed.By: _Todd N. ,Smith, PE, Inc.
Date: August 27.2021
Gallons Per Day: 400 gpd
Soil Loading Rate (.GPD, Per Sq. Ft.)
Recirculation Rate: 13.25 gpm
Minutes Per Dose (Min.)
Emitter Spacing (ft.) 1
Sq. Ft. of Application Area
Drainfield Reduction: 0%
Linear Feet of Tubing
Number of Emitters
Linear Feet of Tubing Per Zone
Number of Zones
Emitters Per Zone
Drip Rate (GPH)
Gallons Per Minute Per Zone
Minutes Per Day Per Zone
Doses Per Zone
Total Doses Per Day
Time Between Doses in Hours
Total Run Time in Minutes
Maximum Connections to Manifold
Gallons Per Dose
0.8
18
500
250
250
250
250
.90
3.75
107
6
6
3.70
107
14
66.7
Total Dynamic Head Calculation
(TDH = Static Head + System Operating Head + Dirty Filter + Total Friction Head)
Static Head = 5.42 ft.
System Operating Head (29 psi) = 67 ft.
Dirty Filter = 11.5 ft.
Friction Operating Head
Main Discharge & Recirculation Line Transmission & Header Diameter = 1.00 in.
Type of Fitting Eq. Length Quantity Total Eq. Length
I" Std.' Tee 1.7 ft. 14
1" 90 Degree STD Elbow 5.3 ft. 12
Total Fitting Equivalent Length = 87.4 ft.
Actual Length of Discharge Header Pipe = 84.0 ft.
Total Pipe Length = 171.4 ft.
Tntal Frietinn T.nsses in ecmivalent 1" diameter discharve line
23.8 ft.
63.6 ft.
GPM
HI in ft/100ft
HI of 171.4' of 1"
Dia.
Static +
Operating Head
+ Dirty Filter
Total Discharge
Head (ft.)
0
0
0
83.92'
83.92'
15
11.70'
20.05'
83.92'
103.97'
20
18.90'
32.39'
83.92' 1
116.31'
Use Sta-Right S.T.E.P. Plus D-Series 4" Submersible Pump
(20 gpm —'/z HP)
Pump Curve shows 17.0 gpm @ 109 ft. of head
System needs 3.75 GPM
Recirculation 17.0 GPM — 3.75 GPM = 13.25 GPM
Residential:
400 GPD
Maximum Lot Flow
(On Potable Well Water = Lot Area + Green Area in ROW in Front of Lot =
(16,443 SF + 4,496 SF) / 43,560 sf/acre x 1,500 gpd/acre = .481 AC X 1,500 GPD/
AC = 721 GPD
Drip Area Required:
500 sq. ft.
Drip Area Provided:
500 sq. ft.
Unobstructed Green Area Required:
750 sq. ft.
Unobstructed Green Area Provided:
750 sq. ft.
s
System Design Criteria
Residence is 4 Bedroom (Building Area is > 2,250 sf and < 3,300 sf) = 400 GPD
Drip System to be placed in Trench System
400 GPD / .8 GPD per sq. ft. = 500 sq. ft. of drainfield
No reduction for dripline drainfield proposed.
Drainfield Requirement = 500 sq. ft. of drip irrigation
2 Lines @ 14', 2 Lines @ 16', 2 Lines @ 19', 2 Lines @ 22',
2 Lines @ 25' and 2 Lines @ 29'
with emitters every foot and lines greater than 24" apart
250 emitters x 2 sq. ft. per emitter = 500 sf
Configengy Plan
1. At high water level, the system will start alarm. The owner must contact the
maintenance entity within 24 hours.
2. Maintenance entity personnel will inspect the system and make necessary repairs
within 36 hours as per 64E-6.012(4)(b).
3. Owner shall pump the tank as required to keep trash out of the aeration chamber.
Operation and Maintenance
The operation and maintenance manuals are provided to the installer and maintenance
entity at the time of installation.
Installation
Installation instructions will be provided by Brian Davis Septic on site to insure proper
construction and installation.
DRIP EFFLUENT DISPOSAL SYSTEMS
DESIGN CRITERIA- 64E-6 Dated July 31, 2018
A. Drip effluent disposal systems shall receive effluent from an approved aerobic
treatment unit or a performance -based treatment system designed to meet at east
secondary treatment standards for CBODs and TSS and shall meet the following
requirements.
1. Drip effluent disposal systems shall be designed by an engineer licensed in the State
of Fl.
2. The infiltrative area required shall be the same as the area required for a mineral
aggregate drainfield with reductions all for the reduction of CBODs and TSS as
noted in the Florida Administrative Code, Chapter 64E-6 Part IV, Performance -
Based Treatment Systems.
3. In a bed configuration, the drainfield area shall be calculated as extending one foot
beyond the sides of the outermost emitter lines.
4. In a trench containing a single distribution line, the drainfield area shall be
calculated as 2 feet x the emitter spacing in feet x the number of emitters.
5. Drip effluent disposal systems shall be considered pressure distribution systems. .
Head loss calculations shall be provided to insure proper hydraulic pressure at the
emitter. Pump selection shall be indicated in the design specifications. Pump
performance curves shall be provided.
6. Re -circulation rates shall be indicated on the drawings.
7. Check valves, petcocks, inline filters, and vacuum breaking device locations shall be
indicated on the drawings.
8. Drip effluent disposal systems shall be time -dosed over the 24 hour period. Demand
control dosing shall override timed -dosing in periods of flow where timed dosing
cannot handle the excessive flow.
9. All drip emitter systems shall be designed as continuous loop circuits with no dead-
end emitter lines. All systems need to incorporate a mechanism for backwashing or
flushing.
10. Drip emitter lines shall be drawn to scale and drip emitter spacing shall be indicated
on the drawings.
11. Vacuum release valves shall be installed at the highpoint of the emitter lines.
12. The maximum .emitter longitudinal spacing on a distribution line shall be 2 feet. The
maximum distribution line spacing in a bed configuration shall be 2 feet.
13. The setback from drip emitter lines to building foundations and property lines shall
be no less than two feet.
14. There is no drainfield sidewall in a drip -effluent disposal system. The definition of a
filled system in a 64E6.002(24), Florida Administrative Code, is not applicable to
drip effluent disposal systems. A drip effluent disposal system is considered to be a
mound system when any part of the bottom surface of any drip emitter line is located
at or above the elevation of undisturbed native soil in the drainfield area. A drip
effluent disposal system us considered a standard sub -surface drainfield system
when the entire bottom surface of every drip emitter line is installed below the
elevation of undisturbed native soil in the drainfield area.
15. For mound systems there shall be a minimum separation of 18 inches between the
shoulder of the fill and the nearest drip emitter line. Mound system slopes shall be
in accordance with s. 64E-6.009(3)(f), Florida Administrative Code. Mound systems
shall be stabilized in accordance with s. 64E-6.009(3)(f), Florida Administrative
Code.
16. For standard sub -surface systems, the elevation of any fill covering the drainfield
shall extend no less than 18 inches away from all emitter lines before tapering down
to natural grade.
17. Minimum cover on the distributions lines shall be 6 inches for standard sub -surface
systems and 9 inches for mound systems. The maximum cover for all systems shall
be no greater than 12 inches.
18. The system shall include a petcock on the dosing pump discharge line for effluent
sampling in lieu of the installation of monitoring ports required in s. 64E-6.029(2),
Florida Administrative Code.
19. All systems shall incorporate an automatic mechanism for backwashing or flushing
the drip lines and filters.
20. All on -site sewage treatment and disposal systems that include a drip effluent
disposal system and aerobic treatment unit or performance -based treatment system
shall have a biennial operating permit, maintenance contract with an approved
performance -based system maintenance entity and shall be inspected in accordance
with a 64E-6.027(5), Florida Administrative Code.
21. Drip effluent disposal systems shall meet the following operating parameters:
* Minimum operating pressure at the emitter head shall be 10 psi.
* Maximum operating pressure at the emitter head shall be 45 psi.
* Maximum system operating pressure shall be 60 psi.
* Maximum discharge rate per emitter shall be 1.5 gallons per hour.
22. The hydraulic surge storage requirement of Rule 64E-6.028, F.A.C., does not apply
to drip irrigation systems.
23. Drip irrigation systems shall only use components approved by the Bureau of Onsite
Sewage Programs.
24. Unobstructed area for drip irrigation systems may be located anywhere on the
establishment property that meets the setbacks for unobstructed area and can be
accessed via transmission lines, supply lines and return lines. The land containing
only transmission lines, supply lines and return lines shall not be included in the
calculation of unobstructed area.
25. Supply lines and return lines shall be considered as transmission lines for
determining setbacks not specified in this section.
26. Except for slopes required to meet the stabilization requirements of 64E-6.009(3)(f),
the area over the drip irrigation drainfield shall be stabilized in the same way or
vegetated with plant species specified by the design engineer. The species specified
shall not include trees.
27. For drip emitter lines using non -pressure -compensating emitters, the maximum
elevation difference shall be four inches between the highest and the lowest emitter
in any individual line segment between the supply and return line. For drip emitter
lines using pressure -compensating emitters, there shall be no more than 18 inches of
elevation difference between the highest and lowest emitter in any line. Neither
property slope nor drip emitter line slope shall result in a depth of cover over the drip
emitter lines to be outside of the range permitted in subparagraph 64E-6.009(5)(a)17,
F.A.C.
28. The minimum effective soil depth below drip emitter lines shall be 42 inches;
however, spodic layers greater than 24 inches below the drip emitter lines may
remain in place at the discretion of the design engineer.
B. Drip irrigation systems shall be monitored during required maintenance visits by
visual inspection of the ground surface above the emitter lines for evidence of soil
saturation at the ground surface.
Answers for Drip Effluent Disposal Systems Design Criteria for the State of Florida
64E-6 Dated July 31, 2018
Part A
1. Compliance
2. Compliance
3. Compliance
4. Compliance
5. Head Loss Calculations Provided
Pressure Loss in 171.4 feet of 1" tubing & dirty filter is 15.79 psi.
Pressure Loss in return line = 5.40 psi
Flow Rate while the system Is running is _17.0 GPM.
Pump is capable of producing 17.0 GPM at _109 ft. of head
Pressure to field will be adjusted to achieve a maximum of 30 PSI on the supple
manifold by opening the by-pass petcock located in the pump tank. Pump Curve
attached.
6. 17.0 GPM, filter flush return line, 3.75 GPM during field flush,
13.25 GPM recirculation to pump tank.
7. Located in Headworks.
8. Compliance
9. Compliance
10. Compliance
11. Compliance
12. Compliance
13. Compliance
14. Compliance
15. Compliance
16. Compliance
17. Compliance
18. Compliance
19. Compliance
20. Compliance. Completed with FDOH and Contractor.
21. Minimum operating pressure at emitter head is greater than 10 psi
Maximum operating pressure at emitter head is less than 45 PSI
Maximum system operating pressure is less than 60 PSI
Maximum will be .90 GPH per emitter.
22. Compliance
23. Compliance
24. Compliance
25. Compliance.
26. Bahia or Floritam Sod to be installed over drainfield.
27. Pressure compensating emitters not to have 18" of elevation change between the
highest and lowest emitter in a line.
28. Minimum effective soil depth shall be 42".
Part B.
Inspections to be performed in accordance with the requirements set forth in the
operating permit as required in the letter herein this design report.
V
Pentair Model S.T'.E.P. Plus-D Series
4" Multi -Stage Submersible Effluent Pump Stainless Steel
3 00 fl
F- 225
LU
ur
Z
T
O 75
CAPACITY LITERS PER MINUTE
25 50 75 100 200
C•'f
45
do „
r� is 210 ys 30 ocs
CAPACITY GALLONS PER MINUTE
Specifications
80
N
t_1
LU
60 W
F
Z
0
60
Body Construction: Stainless Steel (300 Grade)
Horsepower: Y? HP
Maximum Head: 225'
Maximum Capacity: 40 gpm (model dependent)
Flow At 10' Lift: model dependent
Switch: None
Motor: Dry -wound, double ball bearing, double -seal and thermal overload. protection, UL and CSA
approved.
Impellers: Precision molded Acetal for perfect balance... ultra -smooth for the highest performance and
efficiency. Allows Tor .080" solids
Diffusers: Polycarbonate
l A
V Q
V
a
d
so z
th
V Ato
i
m�
x
1 we -
CD cn-
ro
ID O
C
wz
N
t=]
Y
O
Lam]
z
CIO
1-3
Lam]
AQUAAIRE SEWERAGE TREATMENT SYSTEM
MODEL AA5O0-35
AA500 WITH 350 GALLON PRETREATMENT TANK
ONE PIECE W1 TH LID
63'
F I
1 60"
2' '
i
102'
ALTERNATE AERATOR LOCATIONS
AERATOR
3/4" SCH 40 PVC
NOT MORE THAN ;
f00LF FROM PLANT
4- INLET --�
TEE ASSEMBLY
N
cn
4' 7EEj �SSEMBL
AT U T 7'
GALLONtAERA
GALLON
REATMEN10N/MIXINGtlll�A
TANKARTMENT
'-1/2'TER
DIM•
R DROP
NE
FLEC110N
C
OUTLET
�r
z
w
0
wm
CL
o
w
L
z
z
�
J
o
r`
ZLu
l
� o
~
`
N O
J
LU
O
� O
W
C .
C�
O
E
Cn
LIJ00
i
O
Q �
O
Lo
za
O `"
w �l
ca ~
a
y �
0
M Z �
s I H
N
m` *am � C S'd
n Cn
raa V
I� O
H
o
-o
R
a
o
o
�
o
N
TODD N. SMITH, P. E. INC. AA 800
1717 Indian River Boulevard, Suite 302
Vera Beach, FL 32960 SEWERAGE TREATMENT SYSTEM
Ph. (772) 559-3699
Ltl
j
w
U
Lq
0:E
3"R
?s�
TOP VIEW
79"
20" RISER
ACCESS COVER
FG RISER
59"
in
m
CLARIFIER VOLUME
153 GALLONS
72" m
NTER DIMENSIO
9"
AEROBIC TANK VOLUME
756 GALLONS
a
3" R
SIDE VIEW
NOTES:
TOTAL TANK VOLUME: 908 GALLONS TO FLOW LINE.
TANK TAPER FROM FLANGE TO BOTTOM: 4 INCHES
AEROBIC AND CLARIFIER VOLUMES MEASURED AT FLOW LINE
TODD N. SMITH, P.E. INC. ECOLOGICAL TANKS, INC.
1717 Indian Vero BeachBFLI 32 60Suite 302 AQUA SAFE MODEL (AS50OL)
Ph. (772) 559-3699
DRIP FIELD CROSS SECTION
FT. OF DRIP TUBE LINES ® 25" EDGE OF DRAINFIELD
CENTERS WITH EMITTERS EVERY 18" MIN.
1 FOOT.
• SLOPE TO
FINAL GRADE
O
INSTALL DRIP TUBE 6"-12"
BELOW FINAL GRADE
WSWT IS >24" BELOW EMITTERS
** FILL COVERING THE DRAINFIELD SHALL EXTEND NO EFFECTIVE SOIL DEPTH
LESS THAN 18" AWAY FROM ALL EMITTER LINES 42' BELOW EMITTERS
BEFORE TAPERING TO FINAL GRADE.
LOOP LOOP
SUPP
_INE 1"0
AP TANK
TODD N. SMITH, P.E. INC. TYPICAL
1717 Indian RiverBeachBFL 32960Suite 302 DRIP TRENCH SYSTEM
Ph. (772) 559-3699
HEAD WORKS UNl T
JP FROM PUMP DISCHARGE
150 MICRON ME
SPIN FILTER
'2"0 FUNNY PIPE ADAPTER
EE NOTE BELOW FOR
RFORMANCE BASED SYSTEMS)
1/2"0 FUNNY PIPE ADAPTER
PUMP TANK
TO DRIP FIELD RETURN FROM
DRIP FIELD
FOR PERFORMANCE BASED SYSTEMS
EFFLUENT TESTING SHALL BE TAKEN FROM FUNNY PIPE
ADAPTER ON THE PUMP SUPPLY LINE TO THE DRAINFIELD
AT THE FILTER WHEN PUMP IS ENGAGED.
TODD N. SMITH, P. E. INC. HEAD WORKS
1717 Indian River Boulevard, Suite 302 UNIT DETAIL
Vero Beach, FL 32960
Ph. (772) 559-3699
INLET FROM
HOUSE SERVICE
VEGETATIVE
) DIVERT SURFACE
AWAY FROM TANK
OUTLET TO AS500L
OR AA800 PUMP TANKS
INFILTRATOR SYSTEMS INC.
IM-540 TRASH TANK WITH
CONTROL PANEL
TYPICAL TANK DETAIL
TOTAL CAPACITY........... 557 GALLONS
WORKING CAPACITY......... 483 GALLONS
LIQUID LEVEL ............. 44 INCHES
INVERT DROP ............. 3 INCHES
MAX. PIPE DIAMETER....... 4 INCHES
SIZE......... 61.7"W x 54.6"H x 64.9"L
APPLICATIONS....... SUITABLE FOR USE AS A PUMP
TANK, TRASH TANK, RAINWATER
(NON —POTABLE) TANK OR AS
SECOND COMPARTMENT OF AN INE
SERIES SEPTIC TANK.
TODD N. SMITH, P.E. INC. INFILTRATOR
1717 Indian River Boulevard, Suite 302 IM_540 TRASH TANK
Vero Beach, FL 32960
Ph. (772) 559-3699
MOUNTED SECURELY TO
A POST OR BUILDING
3/4' PVC CONDUIT
WIIH POWER WIRES
INLET FROM
SFP71C TANK
TTWRT1'SpEERICAL CONTROL PANEL
TO GRADE
HIGH WATER FLOAT
)J
3 ENABLE FLOAT.#
INSTALL ON I' CONCRETE PA710
ARAINAGE
STABLISH VEGETATIVE
QUICK DISCONNECTOVER AND DIVERT SURFACE
AWAY FROM TANK
—� TO DRAIN FIELD
LIQUID
INFILTRATOR SYSTEMS INC.
IM-540 PUMP TANK WITH
CONTROL PANEL
TYPICAL TANK DETAIL
TOTAL CAPACITY........... 557 GALLONS
WORKING CAPACITY......... 483 GALLONS
LIQUID LEVEL ............. 44 INCHES
INVERT DROP ............. 3 INCHES
MAX. PIPE DIAMETER........ 4 INCHES
SIZE......... 61.7"W x 54.6"H x 64.9"L
APPLICATIONS....... SUITABLE FOR USE AS A PUMP
TANK, TRASH TANK, RAINWATER
(NON —POTABLE) TANK OR AS THE
SECOND COMPARTMENT OF AN IN
SERIES SEPTIC TANK.
TODD N. SMITH, P.E. INC. INFILTRATOR
1717 Indian River Boulevard, Suite 302
Vero Beach, FL 32960 IM-540 PUMP TANK
Ph. (772) 559-3699
49.5
12.1
Side View
Lid View
WO-.KIDE�I-L � 3 `C D-F-- Q�V2AU (3
3" Standard
6" Traffic
End View
Notes:
Receptacle has been designed and tested in accordance with Florida Administrative Code
(FAC) 381 Chapter 64E-6.
When receptacle is used as a pump chamber use 12.93 gallons per inch when configuring
flont placement.
Poly 11 High Pressure Pipe Seal (Accepts 2",3",4" & Corrugated Pipe) Poly 11 will meet the
Vacuum & Hydrostatic pressure requirements of A.S.T.M. spec. C-923 for 2", 3" & 4" SCHD.40
6V
Side View
Lid View
3"
629
End :View
Notes:
Receptacle has been designed and tested in accordance with Florida Administrative Code
(FAC) 381 Chapter 64E-6.
When receptacle is used as a pump chamber use 18.75 gallons per inch when configuring
float placement.
Poly 11 High Pressure Pipe Seal. (Accepts 2",3",4' & Corrugated Pipe) Poly 11 will meet the
Vacuum & Hydrostatic pressure requirements of A.S.T.M, spec. C-923. for 2" ,'3" & 4" SCHD.40
60"
3"
Side View
End View
Notes:
Lid View
Receptacle has been designed and tested in accordance with Florida Administrative Code
(FAC) 381 Chapter 64E-6.
When receptacle is used as a pump chamber use 18.75 gallons per inch when configuring
float placement.
Poly II High Pressure Pipe Seal (Accepts 2",3",4" & Corrugated Pipe) Poly II will meet the
Vacuum & Hydrostatic pressure requirements of A.S.T.M. spec. C-923 for 2", 3" & 4" SCHD.40
G
60"
Side View
Lid View
3"
6"
End View
Notes:
Receptacle has been designed and tested in accordance with Florida Administrative Code
(FAC) 381 Chapter 64E-6.
When receptacle is used as a pump chamber use 19.8 gallons per inch when configuring
float placement.
Poly II High Pressure Pipe Seal (Accepts 2",3",4" & Corrugated Pipe) Poly II will meet the
Vacuum & Hydrostatic pressure requirements ofA.S.T:M. spec. C-923 for 2", 3" & 4" SCHDAO
ASTM
20" Lid GAS
(HAZARDOUS GAS WARNING)
00 LOW PROFILE PUMP (FL)
1:3
DESIGN CAPACUTY
TOTAL CAPACITY
WEIGHT
GALLONS
LITERS
GALLONS
LITERS
POUNDS
500
1893
525
1987
225
DWG SCALE: 1:1
PLOT SCALE: 12
SHEET N:
I OF 3
LIFTING
HOLES
(4 TYPIC,
THREAD
ACCESS
OPENIN(
24" I.D. E
a
in
cV
r
U
1
F
u
ROTH Mult®TanK®
500 GALLON / MODEL RMT-500
LENGTH = 60"
%A11r%1r" _ nnu
I'D E
ROTH GLOBAL PLASTICS
One General Motors Drive
Syracuse N.Y. 13206
Call Toll Free 866.943.7256
TOUII®tY11�NM[3RIBW11eUHHE6S www.fralo.net