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SErrIC SYSTEM CONSTRUcriols All septic system requirements must be in accordance with the San Joaquin County Environmental Health Sewage Standards. For gravity systems,the house pad must be raised to permit gravity flow through both septic tanks and into leach field The double septic system design shown on this plan must comply with the following:(Sec. 10 Sewage Standards.) SEEPAGEE PITS MA (P ITS tTYP) Minimum distance from well to seepage pits 150' Mimmtundistance from trenches to well too, Minimum distance from foundations,driveways and pools 10' Maximum length of individual leach line too' Maximum width of trench 24" Maximum grade of line 3"per 100' Preferable grade of line T'per 100' Distance between lines 10'edge to edge Minimum depth of rock below approved perforated pipe 12" Minimum depth of rock over approved perforated pipe 2" Maximum depth of trench 42" LEACHLINES AND TRENCHES Mimmum distance between leach line and septic tank 5' (TYP.-MIN.10'EDGE TO EDGE) Maximum soil cover over leach line 24" Minimum soil cover over leach line 6" During leachfield construction,the sidewalls and floors of the leachline trenches must be scarified to open smeared soil surfaces possibly caused from the backhoe excavations.Seepage pits are normally scarified by a"cleat"on the outside of the auger flight.All excavations should be inspected by a representative from San Joaquin County Public Health Services Department Environmental Health Division, before placement of drain rock. Telephone at least 48-hours in advance of inspection (209) 468-3284 Leachfield areas cannot be driven or parked over,and no swclures tart be built over these areas.Final grading of the leachfields must be such that drainage water from domestic irrigation or rainfall cannot collect and pond over the leachfields.Only grasses and small shrubs may he planted over the fields,with trees and large shrubs planted at least 15 feet away. The designated replacement area must remain as such,with no permanent structures built in this area. SEPTIC SYSTEM NIAINTENANCE The septic system installed for the respective residence must consist of a dual leachfield system in accordance with San Joaquin Sewage Standards,Section 10.1.For the system to have maximum theoretical longevity,the leachfields must be manually switched between DISTRIBUTION each other on an annual basis.This can be accomplished with a push-pull"gate"valve,which will be on each of the two effluent lines BOX(TYp) o exiting the secondary septic tank. It may be a requirement by the Environmental Health Department that the valves be located within SECONDARY SEPTIC TANK o o phIxlpR / o (SEE ATTACHED NOTES) (OR) o o TANK the second compartment of the secondary tank. This second compartment must also have an installed filter. BULL RUN VALVE ' The Environmental Health Department will require that the tanks be pumped every three years.Therefore,access to the tanks by pumper (IN CHRISTIE BOX) trucks must be maintained Since the septic systems will be installed in fine-grained clay soils,sadiron from a water softener may hasten 0 the clogging mechanisms of this soil type,which may lead to septic system failure. Therefore,water softeners should be avoided or C PRIMARY SEPTIC TANK limited in use. Water from domestic irrigation or rainfall must not be allowed to congregate in the leachfield areas. By signing below,the homeowner has read and understands the construction and maintenance procedures,as stated above and agrees to perform these recommended procedures.This information must be transferred to a buyer upon sale of rile applicable residences. `PpFESS(p4,a W tE1tfl f SIGNED PRINTED NAME DATE WQ yF�hyo '''r DOUBLE SYSTEM LEACHFIELD REQUIREMENTS` -03 IN ACCORDANCE WITH SAN JOAQUIN COUNTY SEWAGE STANDARDS C FTP t .�fa'cwatc� �P Leachhne Length(ft) Size of Primary and No.and Dia.(in.) ?\op clilo � PLAN VIEW No of Bedrooms Requirements Secondary Septic Tanks of Seepage Pits No.and Length(h.)of Leachimes — - 3 300 n 1200+1200 gals 2-42'(160 R eq.) 2-70 ft 160'+140'=300') TYPICAL DOUBLE SEPTIC SYSTEM DESIGN 4 400 ft 1600.1600 gals 342'(240 R.eq.) 3-55 ft(240'+165'=405') 5 500 ft2000+2000 gals 3-42•(240 ft eq.) 3-85ft(z40'-255'=495) R9 K L E I N F E L D E R HEATHER MOOR ESTATES UNIT No.2 6 600 h 2000+2000 gals 4-42"(320 ft eq) 4-70 ft(320'+280'=600') (Except for septic tank sizes.all requirements above pertain to a single leachfield and therefore must be doubledj. DA'E PRODUCESED SAN JOACUIN COUNTY,CALIFORNIA D.10,'iti2001 DATE RevI PROD NO 20-7921-02 FILENAME-2011D620.FH9