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If a stormwater collection system is in place, road runoff will not be collected in the raingarden or on the lot, but will be directed to the centralized wet detention pond." #$%'fa @zyÀ??@zyÀ@ [O @ zbd)???@ [O N@ zbd)Runoff_to_RainbarrelsbNumber__of_Lots*(House_Footprint)*Roof_Runoff_Coeff*((Type_II_Rainfall_Graph*Rainfall_Amount)/12) %(3,       %    !&?:@ :@ zИ@ |@ h^@ :^@@ z8$@ I@ |@ :ou@ zbd)@ URty@ H@Sx@ :;/ -\@ z.U@@ ! #@ @ :5@ yրn@ H@ ߳"@9ҡ`v@yŏZ@}>@lA!@9Zd@yH=@7"@w%l@ @<R@\&@|oL,@q@]@܍Լss@Kd@MU@@?yH=@A 6w@v˅@fDsF@KPkЋJ@HC %b@D{Iz@A$ Ш@<*罸@9ǭe@7~@6Kqv@4Ɔ>@3<c@2,I7k]@1Lvp@0lv%@/f@-yրn@,Ak@*ڃn~@)h=@([@'S;9N@&]X@&;t @%ˋ½@%[o@$t!@${S@$ 2͆@#8@#,@"+՜@"LBN@!Y@!lplݲ@ Kd@ *@  @Yѱ@yŏY@M۾@N@j1aP@Aj@R0@zbd)@*rLV@ڃn~@f@:^@@@h=@JԿ-@=@k_t@[@ k@&m_@k6K@G @Wp.*J@{gP@+xs @ۈry7@ȷ@;X~@t"@7@K!Ai@wd @͆@\ #T@ ye@+՜@l<&E@@L|2@\U$@|m(w+@,}~@܍Լss@*@L< 3@,nB@ @ NI/P@w%l@}G@7"@@yH=@Yѱ@9Zd@f@lA @ٱ/@}>@CL@yŏZ@Yih@9ҡ`v@*;@ ߳"@ ;@ H@ M۾@ yրn@ Z_[@ :5@  q'@ @ N@ ! #@ 'zt1@ z.U?@ Z4/N@ :;/ -\@ Aj@ H@Sx@ Nə@ URty@ [O Roof runoff to rainbarrels." #$%ft^3/0.1 hrs.  ft ft ft  0.1 hrs.f@S@> 7??@> 7@6s̈́@6O _\???@6s̈́@6O _\Subdivision_OutAUncollected__Lot_Runoff+Rainbarrel_Overflow+Raingarden__Overflow $      !" #$%c?bM?????Rn/?Rn/????R,Q@?H?Rn/Type_II Rainfall_GraphTime :\?@@@@@@@ @"@$@&@(@*@,@.@0@1@2@3@4@5@6@7@8@9@:@;@<@=@>@?@@@@@A@A@B@B@C@C@D@D@E@E@F@F@G@G@H@H@I@I@J@J@K@K@L@L@M@M@N@N@O@O@P@P@@P@P@Q@Q@@Q@Q@R@R@@R@R@S@S@@S@S@T@T@@T@T@U@U@@U@U@V@V@@V@V@W@W@@W@W@X@X@@X@X@Y@Y@@Y@Y@Z@Z@@Z@Z@[@[@@[@[@\@\@@\@\@]@]@@]@]@^@^@@^@^@_@_@@_@_@`@` @`@@``@`@`@`@`@a@a @a@@a`@a@a@a@a@b@b @b@@b`@b@b@b@b@c@c @c@@c`@c@c@c@c@d@d @d@@d`@d@d@d@d@e@e @e@@e`@e@e@e@e@f@f @f@@f`@f@f@f@f@g@g @g@@g`@g@g@g@g@h@h @h@@h`@h@h@h@h@i@i @i@@i`@i@i@i@i@j@j @j@@j`@j@j@j@j@k@k @k@@k`@k@k@k@k@l@l @l@@l`@l@l@l@l@m@m @m@@m`@m@m@m@m@n@n ?P?>p?P?>p?P"&r?P"&r?Q4J?Q4J?Qn?Qn?Qʖ]?Qʖ]?R/l5?R/l5?RB¤?RB¤?RsPH?RsPH?S+U?S+U?S8Ck?S8Ck?Sf3?Sf3?T&q?T&q?TzG{?TzG{?TѢ?TѢ?U"/?U"/?Uvf?Uvf?Ulq?mhƒ)?lQ?lC,zxl?kXdE#?k?jvȴ9?iʁ?iz$LD|?h^)5?hTԿ?gx?g.Se?f+ I?f VE?ea?dZ?d;'j@?c"?c]9?bzcsl?bB¤?bY?b,Q?aL?a+?an?aHo~?a 4?`"&r?`07?`wFze?`MUhƓ?`jX?_#x ?_KCV?^< ?^ygt~?^%?]d?]Sn?\8K?\"?\B1?[_@?[2m?Zިc^t?Z`V. ?Z |[?Y>'?Y;:hA?Xf'|E?XiQX(?W#c?W9?Wʁ?V"?VH@q?U^ N?Uvf?UL_?U"/?U"/?Th?Th?TѢ?TѢ?TҲM?TҲM?TzG{?TzG{?TPܜM?TPܜM?T&q?T&q?S x?S x?Sf3?Sf3?S*0U2a?S*0U2a?S8Ck?S8Ck?SUGZ1?SUGZ1?S+U?S+U?Sd?Sd?RsPH?RsPH?Rv?Rv?RB¤?RB¤?RY?RY?R/l5?R/l5?Rn/  !NRCS Type II rainfall table for 1" depth. 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Number produced by equation represents fraction of total rainfall that will runoff during the rainfall event" #$%,cc ?s7?s7???s7?s7?s7?s7????s7?s7?N?s7Roof_Runoff_Coeffd(((Rainfall_Amount-(0.2*((1000/98)-10)))^2)/(Rainfall_Amount+(0.8*((1000/98)-10))))/Rainfall_Amount%l % ( ?ə  b       % ( ?陙  b      %  !Standard TR55 & TR20 based equations to produce curves (CN) reflecting different runoff conditions, depending on soils and land use. Number produced by equation represents fraction of total rainfall that will runoff during the rainfall event Note that 100% of rainfall is not turned directly into runoff, even on complete impervious surface. Some evaporation loss during initial/end hours of storm considered." #$%c @@@@??@@@@@@@@-???@@@@? M@@House Footprint1250;  !.Typical Suburban House footprint = 1250 ft.^2" M#$%ft^2 square feet  ft ftc, A]A]??A]A]A]A]Z???A]A]?M A] Lot_Area-(10*43560)-(House_Footprint*Number__of_Lots)$ * @E      ![Total Lawn/Pavement Area (ft^2) of Subdivision not including rooftop going to rainbarrels." #$%Pc9?TzGz?TzGz???TzGz?TzGz?TzGz?TzGz ????TzGz?TzGz?H ?TzGzInfiltration_ RateIF Soil_Type = 1 THEN (0.5/12/10) ELSE IF Soil_Type = 2 THEN (0.3/12/10) ELSE IF Soil_Type = 3 THEN (0.3/12/10) ELSE IF Soil_Type = 4 THEN (0.15/12/10) ELSE 0 99      ( ?   9       ( ?33 3333   9     *  ( ?33 3333   9     8  ( ?33 3333   9  !Infiltration rates based on NRCS Hydrologic group infiltration rates for types A, B, C, & D original units in inches/hour, converted to ft per 6 minute intervals For soil groups A & B, infiltration rates remain the same as hydrologic soil group. For groups C & D, it is assumed that faster infiltration rates can be achieved by sand/gravel amendments to soil beneath garden. Therefore, in areas w/ native soil type C, raingarden infilt rates = B rates, and in areas w/ native soil type D, raingarden infilt rates = C rates" #$% feet/minutes  feet  minutesc @@??@@@@Z???@@? @ Soil_Type4 gZ ![NRCS Hydrologic Soil Groups: 1 = A (sand) 2 = B (silt loam) 3 = C (clay loam) 4 = D (clay)" M#$%s?????@6O _\?P Wet_Detention_ Pond0 a !" #$%of[@]@刍??@]@刍@(yqC3@(Jq6n8???@(yqC3@H @(Jq6n8Raingarden_ Overflowif SW_Collection_System = 0 and Number_of__Raingardens > 0 and Raingardens <= (Number_of__Raingardens*Raingarden__Volume) then 0 else if SW_Collection_System = 0 and Number_of__Raingardens > 0 and Raingardens > (Number_of__Raingardens*Raingarden__Volume) then Lot_Runoff_to__Raingardens+Roadway__Runoff-GW_Infiltration+RB_to_RG else if SW_Collection_System = 1 and Number_of__Raingardens > 0 and Raingardens <= (Number_of__Raingardens*Raingarden__Volume) then Roadway__Runoff else if SW_Collection_System = 1 and Number_of__Raingardens > 0 and Raingardens > (Number_of__Raingardens*Raingarden__Volume) then (Lot_Runoff_to__Raingardens-GW_Infiltration)+Roadway__Runoff+RB_to_RG else Lot_Runoff_to__Raingardens+Roadway__Runoff-GW_Infiltration+RB_to_RGW!C:_ l[[ W  !    ! C      [  W  !    ! C    *   :    _  [  W   !    ! C    <  : [  W   !    ! C    T     :  _  [   :    _  !&@M@刍@\_T((@ZB^k@XSyd@WjSfn@V!SCSv@TR@~@Sҙx@RRTE)@QR\B&@PQsZt@Oƣ/@NBGͥ@ML"9+@LY08/@L"-&3@K^Z6@J!:@J |?@Iq!} D@H̡PH@H(!$/L@GQ@F QU@F:Y@E ts]@DHb@DM f@C&j@CĢn@B_Hr@Alw@A.F @@00@@!@@f_W@@+@?Ƒ@?l=R@>ݪ @>=i62@> e[@==FN@= ' ڬ@<=f@<5"@;<Ȯ!@;J: H@:<ŗp@:_jQ#@9;O9@5Ȼ/ĝ$@5S;P)L@4ݺ۵s@4h:gA@3@3}:~Y@3s @2:Sr9@24 a@1:@118@09â@0FO.@/s:Jqp@/ss! {*@/Ds @/s@.ra@.r̎@.r7y@.YrբW@.*r 5@-rx@-r@-rN@-nr@-?r$@-r}a@,rp<@,rde@,rW@,TrK;@,%r>Ү@+r2׋@+r%|h@+rE@+ir R!@+:q@+ q(@*q@*q@*~qiq@*OqM@* q@)@)q @)q@)q@)dq@)5quW x@)qh%U@(q\-*2@(qO/@(yqC3Raingarden Overflow: If Raingardens are chosen, runoff not collected/infiltrated by raingarden is overflowed. Otherwise, if no raingardens are in place, runoff goes directly to site discharge or wet detention basin." #$%$f@zyÀ??@zyÀ@ [O @ zbd)}???@ [O N@ zbd)Rainbarrel OverflowIF Number_of_Rainbarrels > 0 AND Rainbarrels < (Number_of_Rainbarrels*(Rainbarrel_Volume/7.48)) THEN 0 ELSE Runoff_to_Rainbarrels _aL      / @ Q         !~Overflow of rooftop runoff not collected in rainbarrels, including a conversion for 55 gallon barrel: 1 ft^3 = 7.48 gallons " #$%ic?????@? PPond_or no_Pond0U !" M#$%5f$@> 7??@> 7@6s̈́@6O _\H???@6s̈́@P@6O _\Subdivision_ Discharge_1 IF Pond_or_no_Pond > 0 and Pond_Size_&_Performance > 0 then ((0.8544*(2.71828^(-0.0357*Pond_Size_&_Performance)))*Wet_Detention__Pond) - 8.1526 else Uncollected__Lot_Runoff+Raingarden__Overflow+RB_Overflow_off_lot S  a+,5 $$   S     ( ?W> 6z ( @ - ?GE 84  S      - @ N! R<  $     a  !IWith a pond chosen by user, pond outflow depends on performance level chosen by user. Various regression equations calculated in excel which produce outflows that meet ANR Stormwater regulations are in place to attenuate peak flow rates. If no pond is chosen, site discharge is combination of outflow from other BMPs in place." #$%cr@!l cE??@!l cE@!l cE@!l cE???@!l cE?@!l cEPostdev_Peak_no_BMPsPeak_Runoff/6/60&Q7 &   <  !&??mTy ?Z-AV?#2%?]?-=1ydz?C!?ˢW?H+n?>Nb?_?Ѷ?Q#A? tU?OC]\[?p)% ]?E?cU?d?9:; }?|G]?dNoM?c?T1?E[?gaߞ?`߭?_?]?0^?s]t?Ybf?WuJ.?[L?t?Pn*?XA?Wo?&K#?iI^n?mG?0A{?z/Ў?hX??4P?ӳVm?0Ъ?ll-ɺ ?2?5P`?Sg?F"\o?1bO#?c=?,Hd?Yĺ?^:?,ɬ[?^g?Ck?[j?f?'?Z:C?ŒXy(6?¾`A?nC?#3SA?UUr=?ÇLl9?ù;?,?Rk?P;R?Ăw4?ĵ%#?Oc?+O?Kg'?ŰL\߄ ?`)On?50?J?Z?q?R?a ?D ?f?Ϋ?k? c(}?8u?O8Y?[mz?#&w?b(=5b?2U?Ѽt9B?|u?x?֜h5I?>x?" b??ܜ!$?rb?6+{wWG?hڋ?\!B ?u:?K®Q??&?f .@Ejޙ@ݷޟ@\/N;Β@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE?mTy ?XP[?#2%?J!?-=1ydz?d&?ˢX?:r?>Nb?Q!i?Ѷ?F? tV? `?p)% ]? &?cU?%H]?9:; |?J c?dNoL?$Q?T1??gaߞ?x!q ?_?ܠ?0^?A?Ybf?9Y4?[L? x?]R>t?n2)0?XA?~?&K#?7 "}?U1N?tdP?Gߕ?)v? W?qu|?򔹴?:,?FA?o ?gfv?yku?Bu1+j?Jpn?|*?x?>Ӿ?~*?Ef?w?;ᘵ?{?]d?@J?s8 ۺ?¥xB?׷V|u? Z?<5?nu.s?àOjC6?#r?2 ?7r ?iHY?ěץ?/?o ?2AI?d?⋛t?Ƹc5 ?Ǡ|oo?ȒM>U?ɈӈE?ʁȆ6?{Ä=0s?vh1?qY|?lp]h? c(}?8u?O8Y?[mz?a ?SB?С?X64WN?'WZ?U`#?ȲF?/a?v?.&?Y"z?мlI?۠q>?݄6+:?q?dzd?/T_,?G 5u?o[s?ñUw?i:U?.CO@@)H@!l cF@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE@!l cE" #$%c@K@K??@K@K@K@K???@K@K?N@KRainbarrel_Volume55O 7!55 gallon barrel" #$%galgallons  galc2@ @ ??@ @ @ @ ???@ @ ?@ Raingarden_Area3Average_Raingarden_Length*Average_Raingarden_Width@AD  @ A  !" #$%$f~<@ ??@ @ @ ???@ H@ GW_InfiltrationIF Raingardens > 0 AND Number_of__Raingardens > 0 THEN Infiltration__Rate*(Raingarden__Volume/2)*Number_of__Raingardens ELSE 0! C cL   !      C    !    !Infiltration of Water into Soil Beneath Raingarden: Depth of Raingarden fixed at 2 ft - thus volume (ft^3) / depth = sqaure area of raingarden for infiltration calculation" #$%gH??????Raingarden Data!" #$%gM??????Subdivision Data!" #$%gN??????Rainbarrel Data!" #$%gO??????Uncollected Lot Runoff!" #$%gP??????Pond/Site Discharge!" #$%Tc C@TtR؆$@TtR؆$??@TtR؆$@TtR؆$@TtR؆$@TtR؆$???@TtR؆$@TtR؆$?@TtR؆$ Curve Numberif Soil_Type = 1 then (70.857*IC) + 35.181 else if Soil_Type = 2 then (44.571*IC) + 58.41 else if Soil_Type = 3 then (27.429*IC) + 72.79 else if Soil_Type = 4 then (5.2637*(LOGN(IC))) + 91.89 else 0 ;G CC      ( @Q + ;  + @A+  I  C       ( @FI + ;  + @M4z G  C     0  ( @;m ;  + @R2 \(  C     B  ( @ _o ;    + @V \)  C  !Weighted curve numbers are determined by the % impervious cover (IC) of the subwatershed. Linear and logarithmic regressions have been developed to calculate NRCS curve numbers used in TR-55 and TR-20 models based on % IC." #$%c !????????3?????? M? Lot_Acreage1/26D:9;bF   ? !4Choose Lot size: 1/4 acre 1/3 acre 1/2 acre 1 acre" M#$%cE[ ??????Pond_Surface_ AreaFIF Pond_or_no_Pond > 0 THEN 8000*(Pond_Size_&_Performance/100) ELSE 0S84     @ S d     !" #$% fo'@6y99??@6y99@ i%@<<???@ i%@O@<<Uncollected_ Lot_Runoffp(Lot_Area*(1-(Percent_lawn_to_Raingarden/100)))*Lot_Runoff__Coeff*((Type_II_Rainfall_Graph*Rainfall_Amount)/12) %(3 <    d       %    !Lot runoff not collected by BMPs that flows uncollected from subdivision, unless there is a single pond collection entire site runoff. Area determined by the raingarden drainage area selected by user in the interface." #$%c+@R@R??@R@R@R@R???@R@R? H@RPercent_lawn to_Raingarden50Nb 2!Percent of Lot (not including roof) that drains to raingarden. Other portion considered runoff to subdivision collection system" M#$%Lc-;@4@4??@4@4@4@4???@4@4?M@4Number_ of_Lotsif Lot_Acreage = 0.25 then 40 else if Lot_Acreage = 0.3 then 30 else if Lot_Acreage = 0.33 then 30 else if Lot_Acreage = 0.5 then 20 else if Lot_Acreage = 0.75 then 13 else if Lot_Acreage = 1 then 10 else 06Y9b F;;  = ?    ( ;   = ?33 3333     ;   = ? Q     ;   = ?  (   ;   = ?  2  ;     :  ;  !" #$%c0@T@T??@T@T@T@T???@T@T? N @TNumber_of_Rainbarrels80O8 P!" M#$%c2@$@$??@$@$@$@$???@$@$? H!@$Number_of_ Raingardens10 D" Nb !" M#$%cI^@(@(??@(@(@(@(???@(@(?"@(Raingarden_Surface_AreaJNumber_of__Raingardens*Average_Raingarden_Length*Average_Raingarden_Width!@A8 ! @  A  !" #$%f-m @C ???@C ????#Outflow.if Tot_In>Peak_Runoff then Peak_Runoff else 0(&&$ ( &    &   !" #$%s T@YI??@YI@YI@YI????$@YI!Total_Subdivision Outflow_Volume0 !" #$%c I@@??@@@@p???@@? %@Rainfall Amount2.1G:\[   @ !qNRCS Type II 24 Hour Storm Depth (in) Values for Chittenden County, VT: 1 yr return = 2.1" 2 yr return = 2.3" " M#$%ininches  ins l@[??@[@[@[????&@[ Peak_Runoff0'#'# !" #$%f)o @??@???'InMax*if Tot_In >Peak_Runoff then Tot_In else 0(&&$ ( &    (   !" #$%cXz@??@@>\,(@>\,(???@>bQ?(@>\,(Tot_InYUncollected__Lot_Runoff+Runoff_to_Rainbarrels+Lot_Runoff_to__Raingardens+Roadway__Runoff:'#      :  !" #$%c@-??@-@-@-???@-?)@-Postdev_Peak_with_BMPsPeak_Outflow/6/60*7^ *   <  !&?E?_ ̰?Vb v?>M]O6?|Ҝ?C?Bj |?q=?6GFG=?2kr?&?3Äw?o{\?taȖ?/?p8}?":C??i?{`lJ?J;Y?ԁw\?6X?-hl?KV@?gS?u?e?y|?8=֢?V`5?{O??> ӧ?/B ?D]teI?b?|XR?1²?B ?Qe8^?Ow??벞?Aas?_vP!?4R?I9j6?dz?vb?T0-l?G#8e?c=?_9i{?>?q}?j|%?9?qip?v;:zc?[4(?(z%(?uU?ڹg=PI?g @?F|j?s H&?~?+5j?#?%Jk?QP\??~j?,?׉k: ?0?0xW?]89?9?WU?%?<3M?]?`D.?cyW?9rj??Eh?N0P?QO! ?W݀?2ͫ?Sy?>M??`?- ?"FG?2Irץ?u*?d'/?)c6e?IX,?&R???鉹? I?{?`LT?cB8^?űHBr?wP~??̼ѣב?ϸ N?d@ ?H&*b?m9?X6ؘ<@mon@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-@-?_ ̰?7D#?>M]O6?V3s?C?`j=?q=??2kr?1-?3Äw?Ba3M?taȖ?q|Q~?p8}?[N??i?Nb!X?J;X?d3?6X?2ɶ-?KV@?Z0Ԫ?u?P!^Z&?y|? o7yd?V`5?e??Y4~Y?/B ?y< ?b?p')T?1²? ?Qe8^?#+6N?mp??"et?u?k&?(??uQN?Ώ9?'OW,?I&?b?2 @?>NU?mef?GC?IQ&?ˁ"U??U L֩?)' ?P?04@N?\xD?S?[R?sO`?@?;v.?h"*,:(?T?Ajv^?E ?`H?FG?s_b?=e?̟%f?/zď?hv?%w6??ʅdN?&ݨ?uZ5?_@I4?=lA9?vϙl?#-$D?Sx?>L??`?ԘwV?\x M?z2?ÐJ? 6?W?=p? 7??@> 7???+ Pond_Out_MaxOif Subdivision__Discharge_1 >Peak_Outflow then Subdivision__Discharge_1 else 0**$  *       !" #$%fA @A??@A???, Pond_OutBif Subdivision__Discharge_1>Peak_Outflow then Peak_Outflow else 0**$  *    *   !" #$%c@q ??@q @4䣑@4䣑???@4+J?-@4䣑 Total_InPre\0/ \!" #$%s @ڃo&??@ڃo&@ڃo&@ڃo&????.@ڃo& Pre_Peak_Q001//0 !" #$%f , @q ??@q ???/ Pre_Q_Max-if Total_In >Pre_Peak_Q then Total_In else 0-..$ - .    -   !" #$%f - @Nvj??@Nvj???0 Pre_Q_out.if Total_In>Pre_Peak_Q then Pre_Peak_Q else 0-..$ - .    .   !" #$%c @i?!r?Xժ ?³M?t2?*9?XNߛ?m3 +?ܷ%/?6|?a?r?j?(ߧ?kUc"?̃|?CIQ$?2&t4?u1?E?8! ?<܍0? Γ}C?h?}+?Fql?{?_}{}? ~2@o?PMpg?c@?;VVq?I d?Z);C$?.|?!4FS?!t?dU?{Z-?h?+ix?W9-?h?qGr?׿P?Z#?6e` m?xz?€brmH?&( ?`ܡ?H^?Ć=?Ħ RЬ?ĵ tc?ĽcwF??>?ūsL?Ƅճ}?vAipѷ?s)?ɘh$?n?gy0]?֜7?p՟ W?Пc秱A?ѹ Q?&ps?+KP(?q҃yC?/"뫗?ٜ?b57Jd?S.-?-m >?sY01?B˜@Q7@k Am@h?7R?71NH?t:v?98fm?M%E?7f??y1^[7?|]j?(ڷ?@I"?p~?.O?.?Jp]? N?Ј0?~o?S&?l?q\?Zc1k?]U7Q?HG?:!8?%6,@x?go?$!?{|?/?qC{??vϲ q?8i~0?{d ?ۧ؁`?R?BɍG?@;?Ƿr? .en-?LX%V?ζ ? H>|?@a w?@Eh_?Q3 ?)?-M۶?of(?y p@?g+D.?ĆbQ@>\,(???@>bQ3@>\,(Subdivision_ Runoff_1YUncollected__Lot_Runoff+Runoff_to_Rainbarrels+Lot_Runoff_to__Raingardens+Roadway__Runoff:42      :  !" #$%f@%rfC??@%rfC?L\߃?,}????L\߃4?,}Postdev_Runoff_no_BMPsSubdivision__Runoff_1/6/603 3   <  !&???2?7r ?iHY?֚?/ǔ?o ?2AI?d?,|?k|v?:9mp?-xu^k?`)Oe?h@_?Ĩ3)1Z?qe"T?)&N?[eI?,B?jT"?~&^?Ed?w?;?{N?]?@Ɗ?s8{?¥x>l?׷Vz]? N?<5??nu.0?àOj!??2?7r ?iHY?ě֙?/ǔ?o ?2AI?d?k|x?ƒh@`?Ǎ,B?ȈcD$?Ʉp_?Yќ?z?u?}?qw2?lJJt?(׫?gvY?gvY?gvY?gvY?a~L?|k?Ed?]?׷Vz]?ӹ5?/Ǖ?:9mq?)&N?V%+?ٶ\جP?z?qw2?gvW??*?2?`)Oe? ?O?L\߃@⋛t@4y@@ ^`;@!˜R@ 4?CS?>|}?D9E?h?l@K?›p?'a?ᄌre6?=]$?: p|?܎v.?/7+mV?|wH?o&?)&N?We?+ ?Rj(?#3GF?SS>?O?w? B?I?p0?A30 ?π?*j? ?qw2?1Mg'?S{?aviP?ʱ?9y?Q\4n ?Ȣb?#7?BFN ?ƫ 8?S"S&?We?ˌx?ŗ,~?X]E?+ ?ڿ`?ě֙?]!xb?Rj*?߃]5?àOj!?aA4~?#3GF?G& Z ?¥x>l?f s?'c? ݥ*?;?klGʹ?,|݀?ηG??p0?1aQ(?% v?gvX??lJJv? ?qw2?p[X"?u?}?4$]@?z?1\?Yќ?9x?=9W?jRf?Q\4n?8u?}?~ڄ?_߼?@@? ?b?cD%?o&?V%+?=?$b2? CGϴ?#6? r޹?jTMs?mGc??I.?}l[?䪭?U K?)'R?2?04@?\q$?SN:?[wx?sN??;v4?h"*,s?E?Ajn?E /?`m?FG?s_?=*?̟%fh?/zď?RN$??\2UX?*#?6?Ǹ?^; Ms?}l[?2?[wy?~j?s_?E+U?@Jԡ?L#?8?;s?fd=8?÷gm?* ?Xdܠ? ?xՌ?bS?Џ ?#v? R?O1~?t'h@T@x|?o 6\?Gey-?وctV?b *}? `X-j? o?ˮ#b? L?2>?a+f?dw뇏?պce4?Ԧm;?ӫ1U?ү?Ѵ.?t&?a? V?caSenR?γ?z?SE ?̣@?Lu8?D18z?ʔSިb?v?4+G?Ȅ3|?wa?%H?u#þ?FiNp?i?eH??vN?8@?A3$?ºr%K7K?{J?< \?o?5h?fT/?A҉?ľ?͆?*(M?F[]??z1E?V?>d|b?Ρ?8ǀ?du?Z ?"(>w8+?"]?&KJ?M뵨?+e??0s?}^??57ad?F2/?9*?]K?>p? i?CEE?䠯k?HF? ?e&?i+GŪ?I)-?f) ԰?M M2?3?8?p?u>?l2X?L: C?,? TJ?j?Q'P?8w.?؆6V?o9h=?OJE\?/,L?\Ta?[?cg?o~j?Vߖrm?=r@xy?$RZs? 3 0 then ((Postdev_Peak_no_BMPs-Postdev_Peak_with_BMPs)/Postdev_Peak_no_BMPs)*100 else 0)<      )    d    !" #$% c@@??@@@@???@@?8@Total_Capital_Costs(Number_of_Rainbarrels*Rainbarrel_Cost)+(Raingarden_Surface_Area*Raingarden_Per_Unit_Cost)+(Pond_Surface__Area*Wet_Pond_Per_Unit_Cost)+Collection_System_Costs+Additional_Grading_&_Piping_Costs d"fe9bY<  d  " f    e   9  b  !Avg. Rainbarrel Cost = $60 (Gardeners Supply, Barton Kirk's knowledge, etc) Raingarden per unit cost = $10/ft^2 (RAN Toolbox) Wet Detention Pond per unit cost = $15/ft^2 (CWP website?)" #$%(c~(??????9Collection_System Costsif SW_Collection_System = 1 then ((SQRT(Lot_Acreage*43560)*Number__of_Lots))*1.5*Collection_System_Cost_per_linear_foot else 0WX8\ W      * @E      * ?  X    !" #$%yfe?,737u???,737u?K%?J^1????K%H:?J^1Roadway_ Runoffif SW_Collection_System =0 then ((((Rainfall_Amount-(0.2*((1000/93)-10)))^2)/(Rainfall_Amount+(0.8*((1000/93)-10))))/Rainfall_Amount)*((Type_II_Rainfall_Graph*Rainfall_Amount)/12)*(SQRT(Lot_Acreage)*(Roadway__Width/2)) else if SW_Collection_System= 1 then ((((Rainfall_Amount-(0.2*((1000/98)-10)))^2)/(Rainfall_Amount+(0.8*((1000/98)-10))))/Rainfall_Amount)*((Type_II_Rainfall_Graph*Rainfall_Amount)/12)*(SQRT(Lot_Acreage*43560)*(Roadway__Width/2)) else 0 W%=( 3ee W  0  % ( ?ə  ]       % ( ?陙  ]      %   %       =     e  W   d  % ( ?ə  b       % ( ?陙  b      %   %     * @E    =     e  !&?8mX4?HmX4?H?I,v[r?Ik"-3?I!?IE"Јx?J&ֱ2?Jeh@s)?JE?J^1?K!1?K_{?K@ 0?Kљ]:?Lc(/?LY/?LEB?LԤ?Mcv.?MT:GJ?Ḿ?M^-?NT?NN-?N`-?NˤK1[?O 5?OHh, ?OXd?Ox?P> ?P! ?P@ϙv?P``ߕ?Pa(Hj:?P?f?P?P;~?PE?Q T?QZ^&>n?Q*?Qׁɓ?RH=v?RTl?R6f>&?R<~?SY?SN.?S|;?S0V?T (7?TI1M:?T?TTk@?Uo9?UCw@?U H?U8?U,5?V=ćP?V|OSY7?V*?VrpX?W86?Wv?W'q`?WC5?X2J;?Xpi?XmX4?X?Y,v[r?Yk"-3?Y ?YE"Јz?Z&ֱ2?Zeh@s*?ZE?[!2?\c(/?]T:GJ?^`-?_x?`a(Hj:?a T?a8`?bTl?by?cfaB1?c|;?c|;?c|;?c|;?c0V?d?e H?f|OSY7?gv?h$O_?iE"Јz?k_{?lԤ?nN-?p> ?q T?rTl?s|;?tTk@?vl?x?{љ]:?~ˤK1Z?;~?%?@eQ^?<%n?bLn?+i h?g?8w|?OK?A_ D?I?{uE?xK>I?wf*vr?u? 6?t9E?r<?qV(?p7TT?pnY ?nmW?lԤ?k~C#[?jFy ?i GE?go`?fWw?f.`"?e8?eSN?d3dj?dxyzP?d (7?c!9?c/KJ?b#[?bTl?a&}?ayc?a ()?`?f?`1+5UL?_Xc?^[.?]^-?\` Y?\:Z?[-5p?[~C#[?[0PF?Z^1?ZUk?ZFy ?Y醄?Y ?Y[}x2?Y GF?XlX?Xpi?X"`uz?Wo`?W9TK?W86?V H!?V ?VMb(;?U,5?UC/ ?UbP?U^#-?TTk@?TxyzR?T)膑ec?S۲ Pv?S|;?S?F&?Ry?R?RTl?Rn?Q8`?Qjک?Q T?P͗(?Pa(Hj:?P1+5UL?O3MU?O?OXd?Oh0>8?OHh, ?O)~lV?O 5?N?NˤK1[?N[/?N`-?NmW?NN-?N/8f%?NT?MT(?M^-?MHX?Ḿ?Msu?MT:GI?M4*?Mcv.?L` Y?LԤ?L ;n?LEB?Ly=~j?LY/?L:Z?Lc(/?K`ưf?Kљ]9?K?K@ 0?K~C#[?K_{?K@eQ^?K!1?K%Roadway runoff is greater when collected in SW collection system as opposed to flowing overland and dispersing into raingardens and grassed swales. Curve number calculation reflects this difference." #$%>c-?jWy?jWy???jWy?jWy?jWy?jWy????jWy?jWy?M;?jWyIC((Driveway_Width*(SQRT(Lot_Acreage*43560)*0.5))+(Sidewalk_Width*(SQRT(Lot_Acreage*43560)))+(Roadway__Width*0.5*(SQRT(Lot_Acreage*43560)))+House_Footprint)/(Lot_Acreage*43560) ><=6?h-- >  * @E    * ?   <  * @E      = * ?   * @E         * @E   !Impervious Cover: Fraction of total subdivision that is covered by impervious surfaces, including: roads, driveways, sidewalks, and rooftops. " #$%c?????? M<Sidewalk Width5; !" M#$%c@2@2??@2@2@2@2???@2@2? M=@2Roadway_ Width26:; !" M#$%c@(@(??@(@(@(@(???@(@(? M>@(Driveway Width15; !" M#$%c@-v(:@-v(:??@-v(:@-v(:@-v(:@-v(:???@-v(:@-v(:??@-v(:Impervious_CoverIC*100;  ; d  !" #$%c@7@7??@7@7@7@7???@7@7? @@7Average_Raingarden Length25C" !" M#$%c@<@<??@<@<@<@<???@<@<? A@<Average_Raingarden Width10C" !" M#$%c@@??@@@@???@@?B@Raingarden_Depth2C !" #$%cC@ @ ??@ @ @ @ 5???@ @ ?C@ Raingarden_ VolumeDRaingarden_Depth*Average_Raingarden_Length*Average_Raingarden_WidthB@A N B @  A  !6Volume of Raingarden (ft^3): Length x Width x Depth " #$%"cP@S@S??@S@S@S@S???@S@S?D@SRG_Area_as_%_of_lotQif Number_of__Raingardens>0 then(Raingarden_Area/(Lot_Acreage*43560))*100 else 0!D !      * @E   d    !" #$%g??????EPeak Qs and Total Volumes!" #$%c @$@$??@$@$@$@$???@$@$?F@$ Total_AcresLot_Acreage*Number__of_LotsHIh\     !" #$%*cg?* ?* ???* ?* ?* ?* ????* ?* ?G?* Qah(((Rainfall_Amount-(0.2*((1000/Curve_Number)-10)))^2)/(Rainfall_Amount+(0.8*((1000/Curve_Number)-10))))%HId % ( ?ə         % ( ?陙        !" #$%c?Ͳ?Ͳ???Ͳ?Ͳ?Ͳ?Ͳ????Ͳ?Ͳ?H?ͲVr(Qa/12)*Total_AcresGFL G  F  !" #$%c"@A+>l4)??@A+>l4)@A+@A+???@A+>l4)?I@A+qu#Peak_inflow/((Total_Acres/640)*Qa)QFGJ Q F   G   !" #$%c AB;z?T?㸻o)0²???㸻o)0²?㸻o)?㸻o)????㸻o)0²?K?㸻o) Vs_to_Vr?0.682-(1.43*Qo_to_Qi)+(1.64*(Qo_to_Qi^2))-(0.804*(Qo_to_Qi^3))JLd  ? m ( ?G z J   ( ?=p = J     ( ?^ 5?| J     !" #$%c@+0??@+0@@???@+0?L@CPvVr*Vs_to_Vr*43560HKM H K  * @E  !" #$%c @E[9y+0??@E[9y+0@E[9y@E[9y???@E[9y+0?M@E[9y WQv_&_CPvCPv+WQvL6UR  L 6  !" #$%0c @N@N??@N@N@N@N???@N@N?N@NRG_Vol if RB_Overflow_to_RG = 0 then (Number_of__Raingardens*Raingarden__Volume)*(Percent_lawn_to_Raingarden/65) else if RB_Overflow_to_RG = 1 then (Raingarden__Volume*Number_of__Raingardens) * (Percent_lawn_to_Raingarden/55) else Raingarden__Volume*Number_of__Raingardens`!CP| `    ! C   A     `     C !   7     C !  !" #$%c'@0@0??@0@0@0@0???@0@0?O@0RB_Vol(Number_of_Rainbarrels*Rainbarrel_Volume P     !" #$%c @bv'bv@bv'bv??@bv'bv@bv'bv@bv'bv@bv'bv???@bv'bv@bv'bv?P@bv'bvBMP_VolRB_Vol+RG_Vol+Pond_VolONUR O N  U  !" #$%c D @!l cE>z򚼯H??@!l cE>z򚼯H@!l cE@!l cE???@!l cE>z򚼯H?Q@!l cE Peak_inflowEif Postdev_Peak_no_BMPs = 0 then 0.0000001 else Postdev_Peak_no_BMPsI,     : >z H   !" #$%c' @iRp.Gс`??@iRp.Gс`@V9t @V9t ???@V9t ?R@V9t Percent_Acheivement((1-((WQv_&_CPv-BMP_Vol)/WQv_&_CPv))*100MP$  M P  M   d  !" #$%c@Y@Y??@Y@Y@Y@Y???@Y@Y? PS@YPond_Size_& Performance0U !" M#$%g??????TANR Stormwater Regs!" #$%&cn??????U Pond_VoloIF Pond_or_no_Pond = 0 THEN 0 ELSE IF Pond_or_no_Pond > 0 then (Pond_Size_&_Performance/100)*WQv_&_CPv else 0SMPT           S d  M    !" #$%g??????VBMP Dimensions & Costs!" #$%c ?????? HWSW_Collection System0:9  !" M#$%c&/@<@<??@<@<@<@<f???@<@<?X@<'Collection_System Cost_per_linear_foot289 !gInstallation Costs/Linear Foot: Grassed Swales - $9 Curb/Gutter/Culvert - $37 Source: 1997 BMP Fact Sheet - BASMAA Therefore, cost of collection system above and beyond those costs associated w/ LID grassed swales is assumed to be approximately $28. This is a tentative and NON-CONSERVATIVE estimate (will likely be much higher). " #$%c#1@I@I??@I@I@I@I???@I@I?Y@ICapital_Cost_per_Lot$Total_Capital_Costs/Number__of_Lots8  8   !" #$%2cx!@S@@S@??@S@@S@@S@@S@???@S@@S@?Z@S@Pre_Curve_ Numberyif Soil_Type = 1 then 30 else if Soil_Type =2 then 55 else if Soil_Type = 3 then 70 else if Soil_Type = 4 then 77 else 0 [!!       !       7 !       F !       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J$?,^/?nP>?tC?6VR?6b) ܲ?xf?P|?4zf?@=M?棎4?+[??J+??9??~ɝ?SS?l|_j?ogQ?Za8?]T{?HG>?9?%6,?gd?$,?Ӷ?/@m?qBS?T;?vϱ"?8ih?{d ?ۧ{?R?BɍG?@?Ƿrp? .en-X?LX%@?ѓ= ?or?'(?: A*?3?\dV?,^/?ү?xf?z?Z?ěa?+[?+[?+[?+[??9??ogP?9?Ӷ?I ?˅@? 0LT?΢Z?se?oȉ?,^/?xf?+[?~ɝ?!}Gr?{d ?ݘh?[E*?kx+1?W9?ζ@ $*s#@ 6@n"?@$?ؙ?7`1?A*Ē?"sWz?ݩiK:?ڌqh?H% ?+|ӱ?{U?4zf?MypR?(& ? ֣?)l!H[?΢Z?5E?hd?ʜ.|?PMpb?>"DZ?Ǐ"?Za8?Ƨ 9 ?2L?ži];?J+?ɖ?aymGA?)D?xf?5F?8C?衁Ҟ?xJ?3HOo?'>>?J} N?w?YUN?η?ZY F?5E?0B?JA&?<w?hd?<?BɍG?#B?.|?IJ?vϱ"?b Lq?PMpa?8?$,?Wb@?QS??]T{? !?^?dFV5?~ɝ?i]>?Zj\)?y?46?|4?kwB?[E*?J} O?: A*?)l!H\?se?1 Ńh?&/A?$|?w?t2?j8.?H?di?''?L4?JQA?YUN?[?g=g?`\s??!tA?*|?η?or?3-?h?w_?V#?5E? 0LT?ζ?ѓ= ?W9" #$%$c~D@PH]h??@PH]h@Hp]@Hp]???@Hp]?^@Hp]Predev_Q Reductionif Predev_Peak > 0 and Postdev_Peak_with_BMPs < Predev_Peak then ((Predev_Peak-Postdev_Peak_with_BMPs)/Predev_Peak)*100 else 01)L 1  ) 1     1 )  1  d    !" #$%f8I ?????H_ RB_to_RG9if RB_Overflow_to_RG = 1 then Rainbarrel_Overflow else 0` $ `        !" #$%cK?????? H`RB_Overflow to_RG1_Nba !" M#$%f81 @zyÀ??@zyÀ@ [O @ zbd)???@ [O Na@ zbd)RB_Overflow off_lot9if RB_Overflow_to_RG = 0 then Rainbarrel_Overflow else 0` $ `       !" #$%\c!WK@E@E??@E@E@E@E???@E@E?b@E"Additional_Grading &_Piping_Costsif RB_Overflow_to_RG = 0 and Percent_lawn_to_Raingarden > 65 then ((Percent_lawn_to_Raingarden - 65)/100) * (Lot_Acreage*43560) * 0.5 * Number_of__Raingardens else if RB_Overflow_to_RG = 1 and Percent_lawn_to_Raingarden <= 55 then 300 * Number__of_Lots else if RB_Overflow_to_RG = 1 and Percent_lawn_to_Raingarden > 55 then (300*Number__of_Lots) + ((Percent_lawn_to_Raingarden - 55)/100) * (Lot_Acreage*43560) * 0.5 * Number_of__Raingardens else 0 `!8,KK `   A      A  d   * @E   * ?  !  K  `    7   *  ,   K  `    7   J  ,    7  d   * @E   * ?  !   K  !" #$%s_@̬??@̬@̬@̬????Hc@̬ Recharge0i !" #$%c=@N@N??@N@N@N@N???@N@N? d@NRainbarrel_Cost608 0 then (1-((Recharge_Volume-Recharge)/Recharge_Volume))*100 else 0hcD h     h c  h   d    !" #$% : C..!  5.'aJL @(y q()*+,@-?  Subdivision BMPs.p</h @I@$B=!!?0!123" " /@I@7B=!@?0@123" " /@D@<B=!A?0A123" " /@Y@RB=!?0123" " /@b@TB=! ?0 123" " /?B=!?0123" " 4 M'@L@(C< ;D()*+,6-5  Subdivision Data.2/@?B=!?0123" " /@@@@B=!?0123" " /@$@9@(B=!>?0>123" " /@B=!<?0<123" " /@2@>@2B=!=?0=123" " 4 M' t@` vh ()*vNote: Capital Costs based on cost per unit of BMPs, and cost per linear foot of collection system (if used in design)+4 M' t@  ()*Typical Wet Detention Pond +4 M'"L@(/&6 '>()*+,-P ^ Rainfall & Soils Data./?@@B=!%?0%123" " /?@@B=! ?0 123" " 4 M' t@7 `?()*a`- Footprint units = sqft. & All Width units = ft. - Total Subdivision Area Fixed at 10 acres +4 M' t@)@ 1H()* Rainfall & Soil Input Parameters Storm Rainfall amounts for 24 hr storms in NRCS Hydrologic Chittenden County: Soil Groups: 1 year return = 2.1 in. 1 = Sand (A) 2 year return = 2.3 in. 2 = Silt loam (B) 3 = Clay Loam (C) 4 = Clay (D)+4 M' t @  X 1(`()*1RAN Stormwater BMP Evaluator Tool (version 1.3)+4 M'N(D(>  F()*+5bb I \& n 637 RUN Model04 " M' D @ p()* Graph 1+ 4 M' t a@ aC YK()*+4 M' M@^  ()*V pond_2.pct89:ZC:\Documents and Settings\Breck\My Documents\Temporary\TR55_Evan\RAN Model Pix\pond_2.pct+4 M'Rz)@ r()*+/h B=!7?07123" " 4 M' M@cVm k()*rainbarrel_2.pct89:`C:\Documents and Settings\Breck\My Documents\Temporary\TR55_Evan\RAN Model Pix\rainbarrel_2.pct+4 M'R.@()*+/h B=!8?08123" " 4 M'R@"x()*+/h B=!D?0D123" " 4 M' tWg@Wg ,O_ ()*-,Rainbarrel collecting runoff from downspout+4 M' M@k ()*raingarden.pct89:^C:\Documents and Settings\Breck\My Documents\Temporary\TR55_Evan\RAN Model Pix\raingarden.pct+4 M' t@ #()*#Large Raingarden in Seattle Region+4 M' t%@%/W 7_()*+4 M'R@U#()*+/h B=!??0?123" " 4 M' t6 @6 >W .F_()*+4 M'R(@()*+/h B=!R?0R123" " 4 M'J%@j()*+/h @Y@YdB=!S?0S123" " 4 M' t@Q{()*RQCompliance with Vermont ANR Stormwater Regulations and BMP Efficacy and Costs+4 M' tm@m e ()* -Number of Ponds (0 or 1), Raingardens & Rainbarrels reflects total for subdivision (not per lot). -Raingarden dimensions entered in feet, and percent of lot draining to raingarden as a whole number (50 for 50%). -Raingarden depth = 2 feet (fixed) +4 M' t@m {u()*|{Note: reflects ANR standards for Water Quality and Channel Protection volumes (ft^3) and BMP % acheivement of standard +4 M' td@dg \o()*Note: reflects peak flow reduction of subdivision runoff with combination of BMPs selected by user and % decrease of predevelopment runoff+4 M'Wy@y mj()*+/h ?B=!W?0W123" " 4 M'R.@()*+/h B=!Y?0Y123" " 4 M'R'@()*+/h B=!M?0M123" " 4 M'R)@()*+/h B=!^?0^123" " 4 M'W@R  pR()*+/h ?B=!`?0`123" " 4 M' t%@%k !s()*- "RB Overflow to RG" Switch routes any roof runoff not collected in Rainbarrels to Raingardens. - "RG Area as % of lot" reflects total lot area consumed by Raingarden Footprint+4 M' tr@r9 "^jA()*_^ - Pond Size & Performance can be increased or decreased to meet requirements depending on number and configuration of other BMPs -SW Collection System (curbs, catch basins & culverts) used only for scenarios including a pond. Assumed that without collection system, roadway runoff will be collected with grassed swales and directed to raingardens.+4 M' t@K #S& ()*Click Here to RUN Model >+4 M'R@$U()*+/h B=!?0123" " 4 M'R%(@%.()*+/h B=!h?0h123" " 4 M'R:(@&2C()*+/h B=!i?0i123" " 4 M',LTw @(To 'Lg()*+,"-!t$$BMP Per Unit Costs.8/@M@N@NB=!d?0d123" " /@"@&@$B=!f?0f123" " /@,@0@.B=!e?0e123" " 4 M' t@Sp ( [x()*Note: reflects ANR standard for required Groundwater Recharge Volume (Rev) and BMP % acheivement. Values will be zero for clay soils where recharge is negligable +4 M' tFb@Fb= )>ZE()*+4 M' tr@r0 *j8 ()*Below are Typical Price Ranges for Each BMP: Rainbarrel - $60 - $200 each Raingarden - $10 - $15 per square foot Wet Detention Pond - $15 - $20 per square foot+4 M' tS@S +IK()*IClick on the 'Page' tab to toggle between Runoff and Peak Flow estimates+4 M' t*@*R ,O"Z()*PO1) Enter design rainfall amount and soil type for the subdivision in the blue window below. 2) Enter the characteristics of the neighborhood in the gray box below. Note that that total neihborhood area is fixed at 10 acres. 3) Select your choices for BMPs in the green window to the right. You can change the BMP cost data as you wish to represent real data if you have it. 4) When you have entered all input data click the red "RUN model" button. 2) Model results for runoff data, design specs per VTANR regulations, and BMP footprints and cost analysis will be displayed below.+4 M' t @ C -K ()*Click the 'U' symbol on the upper left of input panels to restore defaults. Scan to the right to see examples of low impact design stormwater BMPs. ====> +4 Mdrmd   eqq !/  q' s@#A()*+4 &' s#@6()*+4 &' d.@%7()*+4 &' fr @.; ,9fi(6)*(+4 &' d@$()*+4 &' fa@;B/gk5()*(+4 &' c @ U()*+4 &' c@xF KL()*+4 &' c '@ V()*+4 &' c@ ^JZh()*+4 &' cIX@ ?.du()*+4 &' c  @ ()*+4 &' c> @ 4I *.()*+4 &' a4 M%@ <n()*+4 &' ah  M z:@ C()*+4 &' a LNX@ "]()*+4 &' aJH#L/@ a_~()*+4 &' a@[ N`(@ #VEe()*+4 &' c6  @,\%?()*+4 &' cJL  @@UW%Y7f()*+4 &' cK@yVYZ()*+4 &' a)4H$@  o()*+4 &' sxQ @f i()*+4 &' cm  @9x()*+4 &' f @oZY#39;!#M( RgR)*( 9+4 &' f  @ D:( 58WGPR(2)*(i+4 &' a<Hf9@ i()*+4 &' a1PaV@xc()*+4 &' fz  @i_ U6tO(zgz)*(UU&+4 &' dy P@pU.()*+4 &' c\ @6g%6`()*+4 &' cG@=b8()*+4 &' d:N@ 1'C()*+4 &' c/_ @!H:| >*T()*+4 &' c +@"%Y()*+4 &' aH#T@ #()*+4 &' dHS1N@$?JQ\()*+4 &' aIU7@%2PN()*+4 &' d'O@&z()*+4 &' f @'sCs&*)(4ej(;)*(s9s+4 &' a[KO'}@ (V()*+4 &' a]{JO'|@ )Xv()*+4 &' aB M'@ *=()*+4 &' c[' @+5 fG,R"()*+4 &' a+H=X@ ,Y+t()*+4 &' cd  @-Z /)T.\()*+4 &' a]-M D@ .?b()*+4 &' aj-M[@ /e`()*+4 &' cN3  @0DidW()*+4 &' fSa@16HpN$GJN(@SS)*(NN+4 &' c;\!@2/RI 3@]V()*+4 &' aF2HYBk@ 3@a()*+4 &' aY@RO'@ 4T;()*+4 &' a^Nak@5b ()*+4 &' a_Pw@ 6Z| ()*+4 &' d =S@7 4 F()*+4 &' aDN#@8I ()*+4 &' a+Hl@ 9u()*+4 &' aR%H<p@ :Mu*()*+4 &' auH9`8@ ;RA()*+4 &' fs@<Jr ?A@:(R)*(f+4 &' cEM d@=;PXb()*+4 &' cQ+ !@>7\C()*+4 &' a-H<B@ ?&r()*+4 &' a42H< @ @0qW()*+4 &' aH<g@ Av()*+4 &' a #zm)@Bs  ()*+4 &' d o@C  ()*+4 &' c @DG&()*+4 &' D @E #4()* Rainbarrels+ t4 &' Dx @F k()* Raingardens+ ~4 &' D> @G1\()*Site Discharge+ 4 &' g##H()Raingarden Data*+4 &' co %@I^ bcdh()*+4 &' cVv O@J0`a)()*+4 &' cRO@K,](()*+4 &' c@L()*+4 &' gM ()Subdivision Data*+4 &' gmNw()Rainbarrel Data*+4 &' g){)O  ()Uncollected Lot Runoff*+4 &' g,L,9P C()Pond/Site Discharge*+4 &' t@5 Q6=()*76 Rainfall-Runoff Model for Subdivision BMP Selection+4 &' cU8 +O@R/`R4()*+4 &' f  @S = 87UVS( E )*(X+4 &' s $ @T  5()*+4 &' a =SAv@U  ()*+4 &' a QS@z@V  ()*+4 &' aJ0NT,@WK6()*+4 &' D@Xv()* Table 1+ 4 &' ajw5@YM=M()*+4 &' as $Z@ZyN()*+4 &' c@[a&()*+4 &' c K@\AUX()*+4 &' cx2@]5_()*+4 &' c" @^F_$()*+4 &' a~]^@_y()*+4 &' c @`a()*+4 &' a`[@a()*+4 &' c I@bif()*+4 &' ci IO @cGte()*+4 &' c< I@d2cgu()*+4 &' akcO'@ ef()*+4 &' a(bHnN@ fls()*+4 &' a9dNX!@ g>]()*+4 &' atI @ho()*+4 &' c@iK}()*+4 &' c'@jU|()*+4 &' c@k4{()*+4 &' s &@l m xqs()*+4 &' f # @m  %nxB(  )*(P+4 &' d %m@n  .()*+4 &' f H'@o  {Cpq(  s)*(+4 &' azo5Q@px  L()*+4 &' a floY@q K x()*+4 &' ct {@rj  s()*+4 &' a lrs-@sY ] ()*+4 &' c6@t,] v()*+4 &' a4dN jm@ u:SS()*+4 &' aO <t~3C@v 4 6()*+4 &' s y*@w \ ()*+4 &' a lm>6@x  ()*+4 &' d ~@y ()*+4 &' cx (@za  7 {|}pB5()*+4 &' azkzSb@{{ ()*+4 &' a+jz@|z ()*+4 &' aizW@}x ()*+4 &' f 9+@~ ( kyv(  c)*(+4 &' a wh@  ()*+4 &' f ,@ & p(  )*(7+4 &' d @  ()*+4 &' aH .tV@ ? ()*+4 &' c; ) @1 U F()*+4 &' a Ww~J@ = h()*+4 &' a w 6@ ; ()*+4 &' c\Z@Pj()*+4 &' dI9@@R()*+4 &' c I@s?()*+4 &' c - @ C()*+4 &' cX@9wB()*+4 &' cy[@zQA()*+4 &' aU~7Z@Py_()*+4 &' st .@Q ()*+4 &' dq @h z %()*+4 &' fq Z/@`  x(q $q )*(xx+4 &' a }!"@[ ^s ()*+4 &' fu 0@d |b(u u )*(|#|+4 &' dv @m  '()*+4 &' a M@a v ()*+4 &' a a`@s  ()*+4 &' a  Qs@n  V()*+4 &' c 81@ $ \E()*+4 &' a  /@ 4()*+4 &' aY{jA+@_|()*+4 &' au[ @z()*+4 &' s$ 2@ 7 ()*+4 &' d! @ * ()*+4 &' f" 3 @ . "6 6(" " )*(""+4 &' a 1k@< ()*+4 &' a jv@$ |()*+4 &' ai z@$ ()*+4 &' cVP@0a()*+4 &' cU'P@/`()*+4 &' a/NC@ ()*+4 &' cKN@lAJ()*+4 &' alP)>@Vv()*+4 &' a[Pt@Vy()*+4 &' c#@J()*+4 &' da @X j ()*+4 &' f_ 4@N  _^(_ _ )*(__+4 &' d` @W i ()*+4 &' a(  Z@# _ ()*+4 &' df@]o()*+4 &' fe 5@T ae(ee Y)*(ee++4 &' dd a@[ Xm j()*+4 &' a~@"d ()*+4 &' c#6 @()*+4 &' c`@Gkj()*+4 &' auA@c()*+4 &' cX !@p;o()*+4 &' cbX -@<Jmp()*+4 &' c] !7@S x H()*+4 &' a>  Y@9 ^ ()*+4 &' as r `@[ x ()*+4 &' c,J 0@"7U()*+4 &' c 8 @ '.+2^bcd()*+4 &' a[*@()*+4 &' a^@()*+4 &' a*S@N/()*+4 &' cQ @\()*+4 &' cS @^$()*+4 &' aZ^@U()*+4 &' d@#()*+4 &' fk: @h"#4( ")*(  +4 &' c`,;@Vk7()*+4 &' c @()*+4 &' aC%HV@ g()*+4 &' c`^ @:Jk}()*+4 &' cI !@/c()*+4 &' aHc@  h()*+4 &' aJobH@ g()*+4 &' aab@\g()*+4 &' ca?@W()*+4 &' c@N()*+4 &' a wM"Q@ !YK()*+4 &' aQHd@ Li()*+4 &' a N2@ [n()*+4 &' cY <@Fl()*+4 &' c+ =@A()*+4 &' a M3f@ a.()*+4 &' aUM/h@ c*Z()*+4 &' a+M,i@ d&1()*+4 &' a5X!M2Z@ 0-_]()*+4 &' c >@r()*+4 &' aM2g@ b-()*+4 &' cPc @@Fan()*+4 &' cle A@bp()*+4 &' cB@|A()*+4 &' cyC@g ()*+4 &' aRlu@Mgz()*+4 &' amnx@hi}()*+4 &' az@u()*+4 &' cO. @Eu9:;()*+4 &' cS@9^()*+4 &' c%D@()*+4 &' aOlR@JgW()*+4 &' aknT@Oip()*+4 &' a&/>@T(()*+4 &' ak>G14@V%6()*+4 &' a{rP@~\()*+4 &' aaak@]\()*+4 &' gFEF e$ r()Peak Qs and Total Volumes*+4 &' c6 I@(B()*+4 &' c]@Sn()*+4 &' cHF@.S 8e()*+4 &' a @B[d()*+4 &' a_K@FZ()*+4 &' cKlG @Abew()*+4 &' aZuM@Hp_()*+4 &' a7tF@2oK()*+4 &' cV#H@<a.()*+4 &' a/T@>V()*+4 &' aS Q@C'Xg()*+4 &' cr @|()*+4 &' cI@n()*+4 &' cbQ@vI{()*+4 &' aPd@Ki()*+4 &' aO@J ()*+4 &' cJ@#()*+4 &' a@ ()*+4 &' caK@W()*+4 &' aX@]()*+4 &' c##L @:()*+4 &' cs@i()*+4 &' a~"g@&`()*+4 &' aj,@'o()*+4 &' cM @#9()*+4 &' a @()*+4 &' a @!()*+4 &' cw2@4()*+4 &' c 0 @? 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M r9:  " MH0@" MH0A" MH0S" MH0W" MH0`" MH0d"' MH0e"' MH0f"' M Ix2JKLArialLArialLArialIM N KNKO Q+ tO]3=+ ~O7R+ OMg+ O+