HomeMy WebLinkAboutSeptic System DesignDAVID PICKENS
REGISTERED SANITARIAN
SEPTIC SYSTEM DESIGNS
10202 N. DOWLING Rd.
COLLEGE STATION, TEXAS 77845
(979)693-8334
February 28,2012
NAME: Tripp Family Trust > vie/ I be) N N
ADDRESS: 3803 McCullough Road
COUNTY: Brazos ACREAGE:
SUBDIVISION/ SURVEY: Wellborn Business Park Lot: 1 Block: 1: Andrew McMahon
Survey A —167, Tract: 39
Four (4) buildings of 44' X 80' each, consisting of 4 employees @ 12 GPD each building or
GPD est. water usage: 192 GPD/ Effluent Load Rate: 0.045 = 4,266 Sq. ft. of surface irrigation
required. Any water usage above 192 GPD will invalidate this design.
ACTUAL SQ. FT. OF APPLICATION AREA
6,844 sf
New Construction ( X ) Remodel ( ) Water Saving Devices Installed: Yes ( X ) No ( )
Installer: Montel Rutledge
3033 Cain Road
College Station, TX 77845
DESIGN PARAMETERS:
Trash tank required:
Treatment Plant:
Pump Tank:
Pump:
Sprinklers:
Chlorinator:
Site Evaluation Conducted At Site:
Soil Evaluation Conducted At Site:
2 X 500 gallon
Cajun -Aire 500 or equivalent
600 gallon
1/2 hp / 1" pvc pipe
6X # 6 Nelson Low Angle nozzles
In -line tablet type
Yes (X) No( )
Yes (X) No( ) Soil Type: Class IV
Area is suitable for Aerobic Spray - Irrigation disposal system: Yes ( X ) No ( )
WATER SUPPLY: Public (X) Private ()
All set -backs are observed except those noted: night spray — timer required — single disch "
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3: 00 a.m. f �
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All counties: AudioNisual high water alarm required on all pump tanks y,..David P. PICki
Page 2
February 28, 2012
Tripp Family Trust
LANDSCAPING
Immediately after completion of installation, property owner must sod with St. Augustine or seed
the spray -field with bermuda and rye grass, as necessary, and mow as necessary to maintain
optimum growing conditions. Additional irrigation may be required to establish vegetation on
disturbed areas. Unless other provisions are made, the property owner is responsible to fill low
areas, keep tree shading from preventing grass growth, and maintain proper drainage. UNDER
NO CIRCUMSTANCES MAY ANY FOOD CROPS BE PLANTED ON TMS AREA.
NOTES:
The 600 gallon pump tank will be set to give a daily flow reserve of at least 100 gallons, which
will meet or exceed the requirement of 1/3 daily flow. Minimum dose of 200 gallons.
This drawing reflects relative distances.
Piping from each building to the first tank shall be an approved type.
A 2-way clean out will be installed between each building foundation and the trash tank, at each
stub out. Additional clean outs as needed.
All effluent from these units will be disposed of through aerobic treatment and spray dispersal.
The chlorinator may be located in line between the treatment tank and the pump tank, or within
the pump tank.
All spray fields will be at least 10 feet from property lines.
A commercial irrigation timer will be required according to State/County requirements.
System must be sampled and tested in accordance with State/County requirements through a
sampling port located in the discharge line from the pump to the spray field, which shall be
contained within the pump tank.
System is designed in accordance with daily water usage described above. Any usage above
design will invalidate design.
The effluent pump shall be hardwired on a separate circuit from the high water level alarm and
all wiring shall be in accordance with National Electric Code, 30 Texas Administrative Code
285.34(b)(4). ei
The high water alarm shall be an audible and a visible alarm.
All pre -cast concrete tanks will meet ASTM C1227-93a, d30 Texas Administrative Col
5.32(a)(1)(F).
Page 3
February 28, 2012
Tripp Family Trust
The location for all sprinkler heads may be subject to location modification within reason and so
long as they do not violate distance requirements for easements, setbacks or total required spray
area covered. Location change will only be considered if more efficient spray dispersal would be
achieved due to change. Any changes must be submitted to and approved by the Texas
Commission on Environmental Quality or the local Designated Representative.
Thank You,
David Pickens MS. #2390
10202 N. Dowling Rd
College Station, Texas 77845
(979)693-8334
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February 28, 2012
Tripp Family Trust
3803 McCullough Road
Brazos Co.
Legal: Wellborn Business Park, Lot: 1, Block: 1; Andrew McMahon Survey, A-
167, Tract: 39
Installer: Montel Rutledge
Design Parameters:
Four (4) buildings of 44' X 80' each, consisting of 4 employees @ 12 GPD each
building, with water saving fixtures, on acre tract, Q = 4 employees X 12 GPD
X 4 buildings =192 GPD, Ra = 0.045
A = Q / Ri =192 GPD / 0.045 = 4,266 sf required
A = 75' X 140' / 2 = 5,250 A designed
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Tripp Family Trust
\ McCullogh Rd.
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PICKENS ENVIRONMENTAL
and waterline crossings
75' X 140' / 2 = 5250 sf
N X = bore hole
51.6 A = 500 gal septic tank
B = Cajunaire 500
a C = 600 gal pump tank
V
1"=90' i
4 buildings, each with
4 employees x 12 gpd = 48 GPD
192 gpd total
43' NIGHT SPRAY
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