HomeMy WebLinkAboutOWTS Design WorksheetInspection Report OWTS
Designed by Matt M Provost Permit # 3603 Date 7/2/2015
Location: CR 109
Owner: Lough
OWTS Design Worksheet:
I. Septic Tank Size. 4 Bedroom 1250 Gallon
II. Design Flow Table 6-1. 4 Bed 525
III. Soil Evaluation- Soil type. Type 2
Profile Hole Notes Click here to enter text.
Ave. Perc. Rate. 20 min per inch
Long Term Acceptance Rate (LTAR) Table 10-1. .60
IV. Determine Soil Treatment Area (STA):
STA = Design Flow (Gal/day) / LTAR (Gal/day/sq.ft.) 525 / .60
= Square feet = 875
V. Size Adjustment Factors- Methods of Application and Types of Distribution Table 10-2 and Table 10-3.
Trench ☒
Bed ☐
Chambers ☐
Other options Click here to enter text.
Design Treatment Area = STA sq.ft. x Application Factor x Storage/Distribution Factor.
Design Treatment Area sq.ft x.7 x 875
= Square feet = 613
VI. Number of Chambers.
Design Treatment Area sq.ft. / Square foot per chamber
613 / 12
Number of chambers = 52
General Notes and Directions to Installer: For 15 Square feet, unit 41 units. For bed application= 62 units 12 square feet,
49 units 15 square feet units