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CODE REFERENCES AND DESIGN SOURCES :

Armenian Engineers and Scientists of America www.aesa.org (818) 547-3372 Civil Engineering Committee Dzidzernavank School Project Part-I. Designed for 50 Students and Office Personnel of the Dzidzernavank Village School in Kashatagh, Artcakh – Armenia.

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CODE REFERENCES AND DESIGN SOURCES :

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  1. Armenian Engineers and Scientists of Americawww.aesa.org(818) 547-3372Civil Engineering Committee Dzidzernavank SchoolProjectPart-I Designed for 50 Students and Office Personnel of the Dzidzernavank Village School in Kashatagh, Artcakh – Armenia Designed By: Hrand Safarian, P.E. (CE) State of California-USAwww.h.safarian-engnrg@sbcglobal.netPhone: (818) 708-0864 Design Date: June 21, 2008

  2. PSD-Tsitsernavank, Continue June 21, 2008 Revision: CODE REFERENCES AND DESIGN SOURCES : * City of Los Angeles Building Code –LABC and City of Los Angeles Plumbing Code-LAPC * City of Los Angeles Amendments for the 2007 California Plumbing Code-CPC Appendix K- Private Sewage Disposal Systems * International Private Sewage Disposal Code-IPSDC International Code Council –ICC * Other Counties Codes. * Civil Engineering Design Data Book. CONTENTS : GENERAL INFORMATION - Received from Site : Tsitsernavank Village and School Photos. Proposed PSD Site Location and Soil Type. PART-I : SEPTIC TANK CAPACITY DESIGN: CRITERIA , SIZE, SHAPE AND DETAILS . PART- II : DESIGN CRITERIA AND GENERAL NOTES. PART-III : SEPTIC TANK STRUCTURAL DESIGN : MATERIAL , DETAILS AND SKETCHES. PART- IV : SEEPAGE PITS or /and DISPOSAL FIELD/LEACH LINES DESIGN: W/SKETCHES

  3. Proposed Toilet Room Location The present School Buildings Being Renovated Proposed PSD Location Homes

  4. 50% Clay – 50% Sand 30 cm 60% Sand- 40% Conglomerate of: 20% Clay, and 20% dirt 250 cm 4 Meters 80% Rocks (big and small) 20% Conglomerated dirt 120 cm Ground Composition at the PSD Vicinity Ground Surface

  5. 200 Meters 350 Meters

  6. PART-I : SEPTIC TANK CAPACITY DESIGN: CRITERIA , SIZE, SHAPE AND DETAILS .Hrand’s Preliminary Provided Guide Dated March 14, 2008: Page: PI 1-3 Septic Tank Design Criteria: 2008 City of Los Angeles Plumbing CodeAmendments for the 2007 California Plumbing Code: Page : PI 4-7 SEPTIC TANK- DESIGNED. DETAILS & SKETCHES: Page: PI 8-8

  7. PSD-SEPTIC TANK CALC’S Liquid Capacity: Each Student : 20 Gallons (76 liter) Waste per day Assumed 50 students and office members x 20 Gals/day= 1000 gals (3785 liter) 1000x 1.5 = 1500 gals ( 5678 Liter / 5.7 cubic meter) Assume the inside septic tank liquid: 4’wide x 5’ depth 10’ long= 200 cubic foot 200x 7.48/gallon/cubic foot= 1500 gallon (5.7 cubic meter) OK Add 12” on top of liquid. Septic Tank inside dimensions : 4’x6’x10’ (1.22x1.83x3 M) Exterior dimensions: 5’x7’x11’ ( 1.52x2.13x3.35 M) 24” or 2’ ( 61 CM) Soil on top. The depth is 9’ (2.74 M)

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