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Detention Time=4,200 gal total tank.eapaeity x 0.99 (1 volume last to sludge/scum accumulation since.each_huilding has its own tank)
<br /> 1.5 (Peaking factor) x`2,493 gals/day(ADF)
<br /> .Detention Time= 1.1 days. The minimum acceptable detention time is 1.0 day.
<br /> PRESSURIZED CHAMBERED FILTER BED SIZING CALCULATIONS
<br /> Base Tank Capacity 1200 gal. ADF=2 493 d,'therefore Calculated'Tank Capacity must be used:
<br /> Calculated Tank Capacity•(CTC)= 1;125'+2,493 (ADF)x 0.75 =.3,000 gals(proposed: 2,000 gal+1.,200 gal)
<br /> Leachline Equivalent Requirement=3,000 gallons CTC+.2,493 ADF x 0.225 Sandy Loam (Silt) Soil Factor
<br /> (SF)at soil-effluent interface 1,236.1', eal=feet�-of achline.(LFLL) . 1,236 x 3.5 (Filter Bed Soil Factor-
<br /> Combination of Silty Sandy with Clay. il)=4J26 s ..ft filter,bed area calculated under EHD re uirements..
<br /> Proposed: Six separate Chambered Filter Bed Cells to alternate pumping between duplex pump system:
<br /> Single Chambered Eilter.Bed Cell Size— r - x 43:3-- -S long= 1.,472.2 sq ft/cell
<br /> .1,472.2 deft"xMan'be�od Filter B ds Cells=8 833 s . ft. hambered Filter Bed to be constructed.
<br /> Reserve Replacement Area: The reserve area is-located in-the existing vineyard and can be to the west,
<br /> LLo o the north of.the primary dis-osal area, as denoted on the aerial photo. There is ample area within the
<br /> exis ' vineyard for both the imary and replacement disposal areas. Since all wastewater disposal systems
<br /> have a t n which is.i e.rmiriable due to numerous factors, the reserve/replacement area will ultimately
<br /> have.to be activate This may.:be afew:years or.possibly a decade or more before.this occurs. When the
<br /> reserve 1 replacement area is constructed and activated,this.will allow the original primary disposal field to rest
<br /> and rehabilitate.
<br /> :DESIGN AND OPERATIONAL SPECIFICATIONS -——---
<br /> Pump Chamber to'°Filter Beds: Proposed 1,200 gallon pump chamber: P&L-Concrete Monolithic Tank
<br /> (See Appendix G).
<br /> One Orenco BioTube®Filter Pump Vault PN: PVU68-2425-NB
<br /> Duplex Effluent Pump System(Two Pumps Alternating)PN':.
<br /> RF501012-20, 1 HP,.50 gpm nominal flow, 240 Volt, SINGLE PHASE containcd-, ithin BioTube Pump Vault.
<br /> See Appendix H for the data inputs and pump curve.
<br /> Control Panel PN:.MVP-DAX,2,PT,R0,RA,P.RL,SA,CS,DS,TS (115 VAC)
<br /> '(MVP Duplex alternating control panel,pump 240 volt,:programmable timer,redundant off;remote alarm,pump run light,surge
<br /> arrestor,current sensor,disconnect switch,test.switch)
<br /> Float Switch Assemblies PN: MF3A-45 (3 float switches,A Model,high-level alarm,lag pump on,pump on,pump off,
<br /> :redundant off,21 stem length,pump vault, 10'cord length)
<br /> Discharee Assembly-EN: HV 125CXQSH (1.25" discharge assembly, check valve,true union ball valve, quick
<br /> disconnect, high head pump)
<br /> i .
<br /> f Splice Box PN: SB5 (5-cord grips)
<br /> I Laterals for Each Filter Bed: Sch. 40 PVC 1.0" nominal diameter, 1/8" orifice directed at 12 o'clock,4.0 ft
<br /> spacing, 34 ft long. Turn;up"sweeps" at the ends of each lateral for clean-out, and contained within Valve
<br /> Box Assembly PN: SEK100V. --
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<br /> Chesney Consulting
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