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Home My WebLink AboutSD-474-114" OBSERVATION PORT WITH CAP (PERFORATED BELOW STONE - 4" OBSERVATION PORT WITH CAP q OZ NON -WOVEN FILTER 4" OBSERVATION PORT WITH CAP CULTEC RECHARGER 150XLHD I" TO 2 "" 01A. WASHED 4 OZ NONWOVEN TOP 4 OZ NON -WOVEN FILTER INSTALL A MINIMUM OF 7W0(2) FABRIC TO ENCLOSE TOP CULTEC RECHARGER 330XLH0 (PERFORATED BELOW STONE - INSTALL A FABRIC TO ENCLOSE TOP CULTEC RECHARGER 330XLHD PERFORATED BELOW STONE - INSTALL A CRUSHED STONE PORTS IN EACH FIELD FABRIC OF TWO (2) PORTS IN EACH FIELD ( FABRIC TO ENCLOSE TOP (36 "Wx8 "Lx12.5`H) J. l AND SIDES OF THE SYSTEM 5'H) ) AND SIDES OF THE SYSTEM (52 Wx85 "Lx30.5 "H) MINIMUM OF TWO (2) PORTS iN EACH FIELD) AND SIDES OF THE SYSTEM (DOUBLE WASHED PREFERRED) L.- _ -._ -- -r(52"Wx&5Ex3O - .- .- __ - - -'I FROM �+= -�_��= r PCDS#2 6'" SCH 40 # PVC ROOF .: DRAIN LEADER 10" HOPE ( 70" HOPE I 6" SCH 40 LATERAL I LATERAL - ( PVC LATERAL f (TYP.) (..:.. (TYP.) ^ ' (TIP.) +n I o i- f FROM __--- .---- ._ -- _sue- --,- -- - ROOF DRAIN !. WASHED _.._.__ I - i I 30.5• 1 CRUSHED STONEI DOUBLE WASHED i -- -- II 330• PREFERRED) O I II 'USE 16 CULTEC CONTACTOR PROPOSED SUBSURFACE tNfILTRATiON' 70" HOPE _ I� 'i ' 100 HEAVY DUTY CHAMBERS SYSMW -G (PSIS -G} -PLAN Vl£W LEADER I, 4 ROWS OF 4 CHAMBERS (NOT TO SCALE) PROPOSED IMPERMEABLE _ _ _ _ _ - --, _ �- _- -._-.- "'I MEMBRANE E RUFCO 4000E 10" HOPE MEMBRANE R APPROVED EQUAL) DRAIN LEADER I _ I s79' PROPOSED IMPERMEABLE - MEMBRANE (USE RUFCO 40008 MEMBRANE OR APPROVED EQUAL) PROPOSED SUBSURFACE INFtt7RA710N USE 72 CULTEC RECHARGER SYSTEM -1 /PSIS I� - PLAN VIEW 330XL HEAVY DUTY CHAMBERS L 8 ROWS OF 9 CHAMBERS) (N07 TO SCALE) 1" TO 2" DIA. DOUBLE WASHED OBSERVATION PORT WITH CAP (PERFORATED CRUSHED STONE BELOW STONE - INSTALL A MINIMUM OF TWO (2) PORTS IN EACH FIELD) 4" LOAM & SEED q OZ NON -WOVEN FILTER 95% COMPACTED FILL FABRIC TO ENCLOSE TOP AND MIN. FINISHED SI : HAMBERS EL. OVER CHAMBERS= 282:Ot DES OF THE SYSTEM 8„ TOP STONE EL =281 .04 _ 58" C_C _ (MIN) t HDPE CHAMBER TOP 280.54 FROM DRAINM 10' INLET =27800 I I: 1305" BOTTOM EL. =27Z50 12" (MIN)' 52 6 ". 52" 52" 4 (MIN) ( P.) ES H_G W. = 273.5# - NATURALLY PROPOSED IMPERMEABLE �OCCURRING SO1L MEMBRANE (USE RUFCO 40008 (DEPTH VARIES) MEMBRANE OR APPROVED EQUAL) SECTION DETAIL NO TES., - C -C IS CENTER TO CENTER - PROVIDE 6" MIN SEPARA.T70N BETWEEN ROWS OF CHAMBERS PROPOSED SUBSURFACE WnL7RAI70/Y SYSTEM -I (PSIS -f� CROSS SEC77ON CULTEC RECHARGER 330XLHD (Nor TO SCALE) (52 "wx8 5'Lx3o.s "H) I" TO 2" DIA. WASHED -� CRUSHED ERRED) &,� S£D SUBSURFACE 1NF7LTRA77ON {DOUBLE WASHED PREFERRED) � USE 64 CULTEC RECHARGER SYSTEM -2 (P5 -2) - PLAN VIEW 330XL HEAVY DUTY CHAMBERS (NOT TO SCALE) 8 ROWS OF 8 CHAMBERS NOTE.• CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFILTRATION SYSTEM. EXCAVATION SHALL BE FILLED WITH MATERIAL SPECIFIED IN SEC77ON 15.255 (3) OF THE STATE ENVIRONMENTAL CODE, USE 72 CULTEC RECHARGER PILE 5 UP TO THE PROPOSED ELEVATION OF THE WASHED STONE. 330XL HEAVY DUTY CHAMBERS 8 ROWS OF I CHAMBERS PROVIDE MINIMUM 4 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6 INCH WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE BUILDING FOUNDA TION ROOF LEADER BLOCK 1" TO 2" DIA. DOUBLE WASHED CRUSHED STONE 08SERVATON PORT WIN CAP (PERFORATED BELOW STONE - INSTALL A MINIMUM OF TWO (2) PORTS IN EACH FIELD) PIPE. 4" LOAM & SEED MIN. FINISHED 959, COMPACTED FILL �4 OZ NON -WOVEN FILTER FABRIC TO ENCLOSE uo n,mo �unuumc_oaz m /- Q AND SIDES OF THE SYSTEM 1" TO 2" DIA. DOUBLE WASHED OBSERVATION PORT WITH CAP (PERFORATED -� GHAMt1tK IUr , CRUSHED STONE BELOW STONE - INSTALL A MINIMUM OF TWO TO PROPOSED'. 6" INLET = 1 (2) PORTS IN EACH FIELD) SUBSURFACE �4" LOAM & SEED INFILTRATION SYSTEM BOT. CHAMBER i 957 COMPACTED FILL BOTTOM EL. _ 4 OZ. NON -WOVEN FILTER FABRIC TO ENCLOSE USE 16 CULTEC CONTACTOR TOP AND SIDES OF THE SYSTEM 100 HEAVY DUTY CHAMBERS 4 ROWS OF 4 CHAMBERS to" HOPE PROVIDE MINIMUM 4 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6INCH FROM ORA SYSTEM WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE. USE 64 CULTEC RECHARGER 330XL HEAVY DUTY CHAMBERS (8 ROWS OF 8 CHAMBERS) PROVIDE MINIMUM 2 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6 INCH WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE. G 07E.� CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFILTRATION SYSTEM. EXCAVATON SHALL BE FILLED WITH MATERIAL SPECIFIED IN SECTION 15255 (3) OF THE STATE ENVIRONMENTAL CODE, TITLE 5 UP TO THE PROPOSED ELEVATION OF THE WASHED STONE SECTION DETAIL NOTES: - C -C IS CENTER TO CENTER - PROVIDE 4" MIN. SEPARA77ON BETWEEN ROWS OF CHAMBERS PARDPOSFD SUBSURFACE INFILTRATION SYSTEM -G - CROSS SEC77ON (NOT TO SCALE) T6 (MIN) NOTE: CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFIL IRA TION SYSTEM. EXCAVATION SHALL BE FILLED tMTH MATERIAL SPECIFIED IN SECTION 15255 (3) OF THE STATE ENVIRONMENTAL CODE TITLE 5 UP TO THE PROPOSED ELEVA 77ON OF THE WASHED STONE DRAINAGE NOTES. 1. THE PROPOSED STORM DRAINAGE DESIGN FOR THIS SUBDIVISION INCLUDES SUBSURFACE INFIL IRA 77ON SYSTEM DESIGNS FOR LOTS A, C, D, EAND F TO CAPTURE A PROPOSED ROOF RUNOFF UP TO 3,000 SF OF ROOF AREA AND UP TO AN AOD17IONAL 200 SF OF MISCELLANEOUS IMPERVIOUS AREAS (PATIOS, WALKS, ETC.) FROM THE REAR OF LOTS A, C, D, E AND F. IF ANY OF THE PROPOSED DWELLINGS FOR LOTS A, C, E, AND F EXCEED 3,000 SF OF ROOF AREA THE PROPOSED SUBSURFACE INFILTRA7ON SYSTEM DESIGN SHALL BE REVISED BY THE DESIGN ENGINEER PRIOR TO THE SUBMITTAL OF THE BUILDING PERMIT APPLICATION FOR EACH INDIVIDUAL LOT. 2. AN ADDITIONAL PROPOSED SUBSURFACE INFILTRATION SYSTEM HAS BEEN INCLUDED WITHIN THE SUBDIVISION STORMWA7ER DESIGN TO CAPTURE UP TO 925 SF OF MISCELLANEOUS IMPERIOUS (DRIVEWAY, WALKS, ETC) FROM THE FRONT OF PROPOSED LOT A. IF THE PROPOSED IMPERVIOUS AREA IN THE FRONT OF LOT A EXCEEDS 925 SF, THE PROPOSED SUBSURFACE INFIL IRA TION SYSTEM DESIGN SHALL BE REVISED BY THE DESIGN ENGINEER PRIOR TO THE SUBMITTAL OF THE BUILDING PERMIT APPLICA 77ON FOR LOT A. NOTE FOR DETAILS NOT DEPICTED HEREON, REFER TO STANDARD DETAILS AS PROVIDED BY THE TOWN OF LEXINGTON ENGINEERING DEPARTMENT. WILLARD CIRCLE FAD QJ - TnTC' q✓4A Ad NE EL. = 279.21 58" C C - - - - (MIN) - A R TOP = 278.71 v OCCURRING SOIL " INLET = 276.17 (DEPTH VARIES) 4MBER =27677 M Fl_ =97567 NOTES: - C -C IS CENTER 4 OZ. NON -WOVEN FILTER FABRIC TO ENCLOSE USE 16 CULTEC CONTACTOR TOP AND SIDES OF THE SYSTEM 100 HEAVY DUTY CHAMBERS 4 ROWS OF 4 CHAMBERS to" HOPE PROVIDE MINIMUM 4 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6INCH FROM ORA SYSTEM WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE. USE 64 CULTEC RECHARGER 330XL HEAVY DUTY CHAMBERS (8 ROWS OF 8 CHAMBERS) PROVIDE MINIMUM 2 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6 INCH WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE. G 07E.� CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFILTRATION SYSTEM. EXCAVATON SHALL BE FILLED WITH MATERIAL SPECIFIED IN SECTION 15255 (3) OF THE STATE ENVIRONMENTAL CODE, TITLE 5 UP TO THE PROPOSED ELEVATION OF THE WASHED STONE SECTION DETAIL NOTES: - C -C IS CENTER TO CENTER - PROVIDE 4" MIN. SEPARA77ON BETWEEN ROWS OF CHAMBERS PARDPOSFD SUBSURFACE INFILTRATION SYSTEM -G - CROSS SEC77ON (NOT TO SCALE) T6 (MIN) NOTE: CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFIL IRA TION SYSTEM. EXCAVATION SHALL BE FILLED tMTH MATERIAL SPECIFIED IN SECTION 15255 (3) OF THE STATE ENVIRONMENTAL CODE TITLE 5 UP TO THE PROPOSED ELEVA 77ON OF THE WASHED STONE DRAINAGE NOTES. 1. THE PROPOSED STORM DRAINAGE DESIGN FOR THIS SUBDIVISION INCLUDES SUBSURFACE INFIL IRA 77ON SYSTEM DESIGNS FOR LOTS A, C, D, EAND F TO CAPTURE A PROPOSED ROOF RUNOFF UP TO 3,000 SF OF ROOF AREA AND UP TO AN AOD17IONAL 200 SF OF MISCELLANEOUS IMPERVIOUS AREAS (PATIOS, WALKS, ETC.) FROM THE REAR OF LOTS A, C, D, E AND F. IF ANY OF THE PROPOSED DWELLINGS FOR LOTS A, C, E, AND F EXCEED 3,000 SF OF ROOF AREA THE PROPOSED SUBSURFACE INFILTRA7ON SYSTEM DESIGN SHALL BE REVISED BY THE DESIGN ENGINEER PRIOR TO THE SUBMITTAL OF THE BUILDING PERMIT APPLICATION FOR EACH INDIVIDUAL LOT. 2. AN ADDITIONAL PROPOSED SUBSURFACE INFILTRATION SYSTEM HAS BEEN INCLUDED WITHIN THE SUBDIVISION STORMWA7ER DESIGN TO CAPTURE UP TO 925 SF OF MISCELLANEOUS IMPERIOUS (DRIVEWAY, WALKS, ETC) FROM THE FRONT OF PROPOSED LOT A. IF THE PROPOSED IMPERVIOUS AREA IN THE FRONT OF LOT A EXCEEDS 925 SF, THE PROPOSED SUBSURFACE INFIL IRA TION SYSTEM DESIGN SHALL BE REVISED BY THE DESIGN ENGINEER PRIOR TO THE SUBMITTAL OF THE BUILDING PERMIT APPLICA 77ON FOR LOT A. NOTE FOR DETAILS NOT DEPICTED HEREON, REFER TO STANDARD DETAILS AS PROVIDED BY THE TOWN OF LEXINGTON ENGINEERING DEPARTMENT. WILLARD CIRCLE FAD QJ - TnTC' q✓4A Ad ANA TURALLY PROPOSED IMPERMEABLE v OCCURRING SOIL MEMBRANE (USE RUFCO 40008 (DEPTH VARIES) MEMBRANE OR APPROVED EQUAL) SECTION DETAIL NOTES: - C -C IS CENTER TO CENTER - PROVIDE 6" MIN. PROPOSED SEPARATION BETWEEN ROWS OF CHAMBERS SUBSURFACE tN X ZU 7I0N SYSTEM -2 M- -2) - CROSS SEC77ON (NOT TO SCALE) 4 OZ. NON -WOVEN FILTER FABRIC TO ENCLOSE USE 16 CULTEC CONTACTOR TOP AND SIDES OF THE SYSTEM 100 HEAVY DUTY CHAMBERS 4 ROWS OF 4 CHAMBERS to" HOPE PROVIDE MINIMUM 4 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6INCH FROM ORA SYSTEM WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE. USE 64 CULTEC RECHARGER 330XL HEAVY DUTY CHAMBERS (8 ROWS OF 8 CHAMBERS) PROVIDE MINIMUM 2 FEET SEPARATION BETWEEN THE BOTTOM OF THE 6 INCH WASHED STONE LAYER AND THE ESTIMATED SEASONAL HIGH GROUNDWATER TABLE OR LEDGE. G 07E.� CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFILTRATION SYSTEM. EXCAVATON SHALL BE FILLED WITH MATERIAL SPECIFIED IN SECTION 15255 (3) OF THE STATE ENVIRONMENTAL CODE, TITLE 5 UP TO THE PROPOSED ELEVATION OF THE WASHED STONE SECTION DETAIL NOTES: - C -C IS CENTER TO CENTER - PROVIDE 4" MIN. SEPARA77ON BETWEEN ROWS OF CHAMBERS PARDPOSFD SUBSURFACE INFILTRATION SYSTEM -G - CROSS SEC77ON (NOT TO SCALE) T6 (MIN) NOTE: CONTRACTOR SHALL REMOVE ALL TOPSOIL, SUBSOIL, FILL MATERIAL AND OTHER IMPERVIOUS LAYERS WITHIN THE FOOTPRINT (AND TWO (2) FEET BEYOND) OF THE PROPOSED SUBSURFACE INFIL IRA TION SYSTEM. EXCAVATION SHALL BE FILLED tMTH MATERIAL SPECIFIED IN SECTION 15255 (3) OF THE STATE ENVIRONMENTAL CODE TITLE 5 UP TO THE PROPOSED ELEVA 77ON OF THE WASHED STONE DRAINAGE NOTES. 1. THE PROPOSED STORM DRAINAGE DESIGN FOR THIS SUBDIVISION INCLUDES SUBSURFACE INFIL IRA 77ON SYSTEM DESIGNS FOR LOTS A, C, D, EAND F TO CAPTURE A PROPOSED ROOF RUNOFF UP TO 3,000 SF OF ROOF AREA AND UP TO AN AOD17IONAL 200 SF OF MISCELLANEOUS IMPERVIOUS AREAS (PATIOS, WALKS, ETC.) FROM THE REAR OF LOTS A, C, D, E AND F. IF ANY OF THE PROPOSED DWELLINGS FOR LOTS A, C, E, AND F EXCEED 3,000 SF OF ROOF AREA THE PROPOSED SUBSURFACE INFILTRA7ON SYSTEM DESIGN SHALL BE REVISED BY THE DESIGN ENGINEER PRIOR TO THE SUBMITTAL OF THE BUILDING PERMIT APPLICATION FOR EACH INDIVIDUAL LOT. 2. AN ADDITIONAL PROPOSED SUBSURFACE INFILTRATION SYSTEM HAS BEEN INCLUDED WITHIN THE SUBDIVISION STORMWA7ER DESIGN TO CAPTURE UP TO 925 SF OF MISCELLANEOUS IMPERIOUS (DRIVEWAY, WALKS, ETC) FROM THE FRONT OF PROPOSED LOT A. IF THE PROPOSED IMPERVIOUS AREA IN THE FRONT OF LOT A EXCEEDS 925 SF, THE PROPOSED SUBSURFACE INFIL IRA TION SYSTEM DESIGN SHALL BE REVISED BY THE DESIGN ENGINEER PRIOR TO THE SUBMITTAL OF THE BUILDING PERMIT APPLICA 77ON FOR LOT A. NOTE FOR DETAILS NOT DEPICTED HEREON, REFER TO STANDARD DETAILS AS PROVIDED BY THE TOWN OF LEXINGTON ENGINEERING DEPARTMENT. WILLARD CIRCLE FAD QJ - TnTC' q✓4A Ad