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GRAVITY FLOW AT-GRADE PLAN VIEW & CROSS SECTION <br /> At_ <br /> PLUMBER'S SIGNATURE: / , (✓Y MP/MPRSW#: 2 7 7/3 DATE: 5 e,� 2e) /0LSo <br /> I/ <br /> PAGE 3 OF 5 CLIENT: ERIK& CATHERINE RANHEIM <br /> PLAN VIEW <br /> (FOLLOWS CONTOUR) <br /> TO SEPTIC TANK 1/2"-2 1/2"APPROVED <br /> AGGREGATE <br /> END SPACING=1' <br /> PERF.PIPE LENGTH=24.0' "� 2' <br /> —D - - <br /> TOTAL <br /> OBSERVATION WELLS WIDTH=12' <br /> •—( (2-CAPPED AND ANCHORED) 10' <br /> 16'--- <br /> 1 0 <br /> CELL LENGTH=100' <br /> TOP OF LATERALS = ELEV.99.84' <br /> 1 TO SEPTIC TANK <br /> 4"PVC SEWER PIPE <br /> 48' -I (ASTM D3034) <br /> 24' S <br /> 1 I 10 -ll,II I <br /> APPROVED DISTRIBUTION 1 •-•-I <br /> BOX WITH 4 OUTLETS \ 4"PVC PERFORATED <br /> SET AT MIDPOINT OF CELL PIPE ASTM D2729 <br /> (FLOW EQUALIZATION DEVICES SPACING BETWEEN <br /> SUCH AS DIAL-A-FLOW SHALL BE LATERALS=2' <br /> INSTALLED TO ESTABLISH EQUAL <br /> DISTRIBUTION THROUGHOUT THE I <br /> CELL) <br /> 4 OUTLET <br /> DISTRIBUTION <br /> B DISTRIBUTION SCHEME <br /> 1,,,INLET <br /> (TOP VIEW) <br /> INSTALLATION <br /> USING SINGLE D-BOX <br /> 4"DIA.SEWER PIPE TO FURTHEST \ <br /> QUARTER OF CELL \ 1/...1 IN CENTER OF CELL <br /> (SEWER PIPE DROPS TO D-PIPE) I. <br /> GALL OUTLETS 1 M$ <br /> alit.�,■ I DISTRIBUTION ' ■1. ,�I <br /> I <br /> INSERTED (DOWNSLOPE SIDE VIEW) <br /> 4'DIASEWER PIPE DROPS TO FOR EQUAL <br /> ADJACENT QUARTER OF CELL <br /> AT PROPER ELEVATION <br /> ALL DISTRIBUTION P <br /> (D-PIPES)ARE AT SAME <br /> ELEVATION _ <br /> rigrili � <br /> DISTRIBUTION BOX SHALL BE INSPECTED 11r An <br /> EVERY 13 MONTHS FOR LEVEL GRADE <br /> OBSERVATION PIPE CROSS SECTION LINEAR LOADING RATE = 6.0 GPD/FT <br /> DESIGN LOADING RATE = 0.6 GPO/FT' <br /> WATER TIGHT CAP <br /> (REMOVABLE) GRADE = 11% SLOPE <br /> (A) DOWNSLOPE SOIL COVER WIDTH = 7 FT. <br /> FINISHED 4"MIN.DIAMETER PVC; (B) CELL WIDTH FROM D-PIPE= 10 FT. <br /> GRADE SCH 40 ASTM 2665 <br /> OR EQUIV. <br /> (C) UPSLOPE AGGREGATE WIDTH SUPPORT=2 FT. <br /> SLOT(1/4"-1/2"WIDTH, <br /> OPPOSITE SIDES) (D) UPSLOPE SOIL COVER WIDTH = 5 FT. <br /> 3/6"MIN.STABILIZATION BAR <br /> 6"MIN. — .- OR WATER CLOSET COLLAR CROSS SECTION OF AT-GRADE CELL <br /> APPROVED FABRIC COVER <br /> I INFILTRATIVE SURFACE OVER <br /> 2"COVER OF APPROVED AGGREGATE OVER <br /> __I yam/ 4"PERF.PIPE(ASTM D2729)OVER <br /> OPEN BOTTOM 6"APPROVED AGGREGATE BELOW LATERAL <br /> 1/2"-2 1/2"APPROVED <br /> APPROVED FABRIC MIN.18"TOPSOIL <br /> COVER AGGREGATE DISTRIBUTION Box <br /> OBSERVATION WITH ACCESS TO GRADE COVER OVER SEWER LINE <br /> MIN.12"TOPSOIL 4"PVC SEWER LINE <br /> WELL COVER OVER FABRIC 1 4"PERF.P(PING <br /> AZ- <br /> 1 _ y� _ _ .—u=11=11= <br /> CHISEL PLOWED / STABILIZED �... ..-u-..�n-11 11=11=11=11•-11-11-1111 IIPIII <br /> SURFACE TO S" _ _ _ _ ..—n-11=n=11-11=-111-11( 11-11=11=11=J1-1111-11-11=11=11-11-11-111111- <br /> ..-.11.=..11.=I1.h 11.°=.II.�I.I111.`I1 11.11.11F-11V,11.��.11.�'In.11.s,. ,�JI:11.11.11.11JI:�i.1I.11.1I.�I.I1.�1.II.11.II,�1.II.��.lIJ1.1I.�I71.�I.1I.�I.11.�I.I1.�11 < <br /> -..=u=11=11-11-11-11 11.-11-11-11-11=11..-11- <br /> n=II=11=11-11=11=11_a ._.._�1—n_, .. vi • _n—u-11-a- u-11—a u-u-a-11-n- <br /> _ _I'=!'1'=11=11 ,7. - • . • <br /> -• ?11=11.=11-11=11-11-11■11=11=11=11=11—=11t <br /> 11.—.11.1.11.11..111 i1• I-11 BELbW s0 '' �I11=11.11.11.11.11.11.11.11.110 11.11.11.11.iL�I.11.11.11.11.11s <br /> 1=11 ti IIpit=11.�... —_ — _ _ _ __•—_ --_-- __— _ _• �1,1=1�I=_u:,gr--=a.==II .��=II.=IIi'!ii*Ill <br /> Ir_A - - B I C .-'—D 1 <br /> GRADE <br />