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HomeMy WebLinkAboutItem #10 Medaow Rdige PUD Amendment AGENDA ITEM STAFF REPORT Meeting Date: November 20,2007 Item # l 0 Contact Name: Contact Number: Antonio Fabre, AICP 407 -905-3100/1019 Reviewed By: Department Director: City Manager: Su~ject: Su~~!a.n!i;;3IArriendment to the Meadow Ridge PUD (FKA: WestridgePUD) PrOject # LS-2005-0t1 Commission District # 3"7 Rusty Johnson ISSUE: Should the Honorable Mayor and City Commissioners approve an Ordinance for a Substantial Amendment to the Meadow Ridge PUD? BACKGROUND SUMMARY: The Meadow Ridge PUD is located at the southeast quadrant of the intersection of Maguire Road and Moore Road. The residential portion of the PUD consists of 152 single-family lots. The City Commission, on March 7, 2006, reviewed and approved the Final Subdivision Plan for the residential portion of Meadow Ridge PUD. After construction started, the home builder noticed that due to their home product design and the size of the lots, the addition of a typical size swimming pool would exceed the maximum 50 percent impervious surface development standard for the PUD. Accordingly, the applicant has requested an increase of the maximum allowable impervious area for certain residential lots. DISCUSSION: As indicated above, this amendment will change a Condition of Approval in the previously approved Meadow Ridge PUD. Specifically, the applicant is requesting to change the previously approved maximum impervious area of 50% for each lot to an average impervious area of 58% for all lots in the subdivision. Certain residential lots will have higher maximum impervious surface area allowed and others will be less, but the average of all lots will not exceed 58% within the entire subdivision. Please note this increase of impervious area request assumes the entire project gets built-out with every lot having the biggest home product with a reasonable sized swimming pool. Most likely, the project will not develop in this manner. Eventually, the approval of the requested action will allow the homebuilder greater flexibility in product mix, options, size, and reasonable pool area that they can offer to potential buyers. For your review and consideration, the packet contains a memorandum from the City Engineering Department that states, according to the design engineer of record, "the stormwater system as designed will support the increase in the average impervious area to 58%". Therefore, the requested development standard amendment appears to be technically feasible. In addition, please find the attached letters by the design engineer of record requesting this impervious surface area change. DEVELOPMENT REVIEW COMMITTEE RECOMMENDATION: The proposed Meadow Ridge PUD Amendment was reviewed by the Development Review Committee (DRC) on September 26, 2007. According to the City's Land Development Code, alterations to an approved PUD Land Use Plan shall be classified as either substantial or nonsubstantial amendments by the DRC. The Committee determined that the proposed amendment was considered to be a substantial amendment due to the criteria established in the City's Land Development Code. Accordingly, the proposed substantial amendment will be presented at a public hearing before the Planning and Zoning Commission and the City Commission. Staff suggested that the developer provide a table and a drawing that indicates the impervious surface ratio permitted for each residential lot. When the discussion was finished, the Committee voted to recommend approval of the proposed Amendment to Meadow Ridge PUD permitting an average 58% impervious ratio for all residential lots. PLANNING & ZONING COMMISSION RECOMMENDATION: The Planning and Zoning Commission reviewed the proposed Meadow Ridge PUD Impervious Surface Amendment on October 9, 2007. City Staff presented a brief overview of the proposed impervious surface amendment and answered several questions regarding this request. Additionally, staff handed a new proposed table representing all the lots on Meadow Ridge indicating their maximum impervious percentage for each lot. Staff supports this new table because it's more conservative that the original proposal. The Public Hearing was opened for the Meadow Ridge PUD Amendment. There was an abutting property owner from the public to speak regarding this PUD Amendment. He asked questions regarding stormwater and drainage concerns of the area. The Mayor approached the podium to answer the drainage concerns posed by the abutting property owner. All of these questions were addressed adequately in the P&Z meeting. After finishing its deliberations, the Planning & Zoning Commission voted unanimously to recommend approval to the Meadow Ridge PUD Impervious Surface Amendment with the new table presented at the meeting. STAFF RECOMMENDATION: Based on the recommendation of the DRC and Planning & Zoning Commission, Staff recommends that the Mayor and City Commissioners approve the Ordinance which allows for a Substantial Amendment to the Conditions of Approval for Meadow Ridge PUD to permit an average 58% impervious ratio for all residential lots per the attached table. Attachments: Location Map; Donald W. Mcintosh Associates, Inc. Letter dated August 16,2007; Donald W. Mcintosh Associates, Inc. Letter dated August 22,2007; Donald W. Mcintosh Associates, Inc. Letter dated August 31,2007; Engineering Department Memorandum dated September 20,2007; Meadow Ridge Maximum Lot Impervious Area Percentage Table (by lot); Ordinance. Financial Impact: None. Type of Item: (please mark with an "x'? X Public Hearing Ordinance First Reading X Ordinance Second Reading Resolution Commission Approval Discussion & Direction For Clerk's Deot Use: Consent Agenda Public Hearing _ Regular Agenda Original Document/Contract Attached for Execution by City Clerk Original Document/Contract Held by Department for Execution Reviewed by City Attorney Reviewed by Finance Dept. Reviewed by ( ) O:\Staff Reports\2007\SR07085 _JAF _MeadowRidgeAmendmenttoPU D _ CC.doc N/A X N/A N/A I 1 ----, - -- Meadow Ridge Location Map '~[ ~~ ~~ \~\\..,,-- c=f ~1B '\ - "J ~> ----' ~ __ ~ f- f- ~ --- ---;;;;:: ;:: c- t=~ ~ == = ---1 h:: f- f-h ~ ---=1 e= '--~ :=, j - \ \Q Im~~~ ~ - HWiMOORT5. ~ ~I 1= ~ -j ~ ~ \ if \~~>f'.f- ~; L 1S:: = ~~ CO J ! (7' T '\''''~ " I- - ~ C-+--- ~ s L 1 Il r---,IJ \- -----i~ ~ i--o- o I T [ij f----j~ f--- -----l I WT ~ J' DC-'- l' ~ ~ mc-~ =----, QlJj~l~ I~,- -A c::J:i; =:::j " ~I II T ""~ I I ~ -~[ ,~ ~ ~n ~~w ~ ~-o ~ I J~ I -L H I" T w I ~ ~ I et- -- - - mLT S ~ L -=1 l l nJ1==: f~N~'~ c- : 1~R ~ _1 IT-Ni- - -----1 i-------- i---------J _ U1 I RchB~ RscbN RQj l '-- I MOO E RD ~J Cl 0::: W 0::: :::> C> <( :2 ... ~ ~AA ~Z)i4~ L- ') 0 H DRNEBR ~1 I Ii OOK f----- ~T 'S ~ ~ ~\ IC!<\LlIOAE I I I) ~11if1 ~ 0~ II I I 1 1 il'- hi c---'L ~~"^ ~~s ~ t : : t t \'~ \ 2- I lilifdrnE$f1 Tl ~ '~ e ~ - "- I T ~ c- ~[[[[ll] =l~~ ~~ ~~== \IIIIIJH~G~ \ ,('I~ lD~ I ~y ~ \\ k '--L ~ - ~ ""'( ~ ~=:; \~VI ~ ~ ~ MOOWE ~D r UTI-- ---l DONALD W. McINTOSH ASSOCIATES, INC. CIVIL ENG!i\!::E;;S LAND PLAh!i\l::RS SU;:;:IJ:YO?:S 2200 Park Ave. North Winter Park. FL 32789-2355 Fax 407-644-8318 407-644-4068 http://www.dwma.com Mr. Russell B. Wagner, AICP City of Ocoee 150 North Lakeshore Drive Ocoee, FL 3476l August 16, 2007 ~ ./'..\~\ /:/ \ '. \ \ (l~\ \.~~\ \ .1,/ <::; :---.. \ /~"\ \/ / ./"'\ ~.\" I Jf>'/ .cNV ./'" / l ~y .\.;~<.../ \ \./\\1';'~ \'~~~ \ ' \) Re: Meadow Ridge Lot Impervious Area Dear Russ: This letter is provided to confirm that the stormwater system for the Meadow Ridge project was designed to accollullodate a maximum 58 percent impervious area for every lot in the development. This assumption was made to allow for all lots to accoDU11odate the proposed product mix and a reasonable pool area. Please see attached typical lot impervious calculation which was provided in the stom1water calculations approved by the St. Johns River Water Management District and the City. Sincerely, :V. MCINTOSH ASSOCIATES, INC. C: J. Antonio Fabre, AICP Mr. Jason Hill Mr. Donald W. McIntosh, Jr. John M. Florio, P.E. George D. Delaney, P.E. Michael R. Todd, P.E. I.'@.I ~t,~: c~ 2:7 ~ I ~I u u %Wv v I t1b1 ! I _ I CITY OJ: Of'OCf"' # 1 '..J Lot JIT Irk/file F :Proj2005'250~\E"Gadmil1'C\EC 156.doc I~ 65' ~I TOTAL AREA LOT 7,1 50 SF 1/2 R /W 1,625 SF TOTAL 8,775 SF 0 N IMPERVIOUS HOUSE PAD DRIVEWA Y SIDEWALK ROAD & CURB TOTAL AREA 3,500 SF 496 SF 196 SF 910 SF 5,102 SF PERVIOUS AREA (PER LOT) 8.775 - 5,102 = 3.673 SF IMPERVIOUS PERCENTAGE (5,102 SF) (8,775 SF) = 58.1% 11.11 DONAW W. McINTOSH ASSOCIATES, INC. MEADOW RIOOE (fKA ~ . ~V[NlJl: tlO!ll'll. ~ Fl.CRlllA 32789 (~ Cf1'Y OF OCOEE. FI.ORIOA _....-E!- ~ lrO--!:!f!L ~ "".....:!!L PAJt, 1/06 OAtto 1106 PAJt, 1/06 -- 2S044 O~/~~/U7 ~.t:V lU:l~ r':\.\ -..--". I4l 001 I i August 22, 2007 ~ ~~ ~ ~ \W ~ ~ i\a~G , 2 ~~ JWi .... ~ CITY OF OCOEE Mr. Russell B. Wagner, AICP City of Ocoee 150 North Lakeshore Drive Ocoee, FL 34761 Dm'.!AI.D W. MC!I\I'roSM Assccum:s, I~. Re: Meadow'Ridge Lot lmpcr"iou5 Area Dear Russ: CVIl. ENG!NEE"5 Pursuant to our ph.one conversation yesterday and on behalf of our client Pulte Home COTporation please accept this letter as our formal request for a waiver to the City requirement of a maximum allowable lot impervious area of 50 percent. Due to the approved lot size for this development (65'xl10' minimum) and the proposed home sizes (2599-3522 sfunderroot) the addition ofa pool to the lots would exceed the current ma~jmurn 50 percent impervious percentage allowed by the City. We are therefore n::questing~t the maximum lot impervious percentage be increased to 58 percent for this project. This will allow for the constrUction of normal size pool area on the lot should a homeowner wish to have one. SllR\f:VC~ The constructed stcnnwater system for the Meadow Ridge project was designed to accommodate an average of 58 percent impervious area for every lot in the development. This assumption was made to anow for all lots to accommodate the proposed product mix and a reasonable pool area. Undersumding that not every lot in the development will construct a pool, this project wide percent impervious area of 58% will never be exceeded. Please see attached typical lot impervious calculation (signed and sealed) which was provided in the stormwatcr calculations a?proved by the St. Johns RiVeT Water Management District and the City. LA''':> plA!'-....<;RS I 1..IDderstand that this request is required to go to the City Council for their review and consideration. Given that this community is intended to be a higher end development to be consistent with the adjacent developments, we respectfully request staffs recommendation for approval of this waiver to the Council. -~...... V Sincerely, 20100 Perk Aw. NorVI C: J. Antonio Fabre, .AlCP Ms. Tina Demostene, AICP Mr. Jason Hill Mr. Donald W. McIntosh, Jr. John M. Florio. P .E. George D. Delar.iey, P.E. Winter Park. FL 32769-2355 Fc" 407-644-831 8 JTT/rk/file F: Il'roj20OS\25 O<14\l:.NGlllminlC\EC] 57.doc 40'-644-4CSe I"lt:t;p, //I/VW"II.dwrne.ccm . _ 08/22/07 WED l~; lJ FAX_ 141002 --- - --'.-- ---------- t~ . 65' ~ o N ~ W. ~ ~A1GS. ~ ~ ~ ~ ==,.. ~ eeaTlL _ ~ IUl!i!lIA .ma (cPJ ~ -- ~ TOTAL LOT 1/2 R!W TOTAL AREA 7,150 SF 1.625 SF 8.775 SF IMPERVIOUS HOUSE PAD DRIVEWA Y SIDEWALK ROAD &: CURB TOTAL AREA 3.500 SF' 496 SF 196 SF 910 SF 5.102 SF PERVIOUS AREA (PER lOT.) 8.775 - 5,102 = 3,673 SF IMPERVIOUS PERCENTAGE (5.102 SF) (8.775 SF) = 58.1 % DONALD W. MciNTOSH ~lAn:8. INC. .CER~lE'OF AtfTHO itZAnQtWO. ea ~ ; .>~: ,>;'. .~: .;:::" .'~':~~~ ..~. .~ em(jJI~~ 1 t t J J DONALD W. MciNTOSH ASSOCIATES, INC. CiVlL ENGiNEEi1S lANo PLANNERS SUMVEYORS 2200 Park Ave. North Winter Park. FL 32789-2355 Fax 407-644-8318 407-644-4068 http://www.dwma.com August 3 I, 2007 Delivery David Wheeler, P.E. City of Ocoee 150 North Lakeshore Drive Ocoee, FL 34761 Re: Meadow Ridge Pools Dear David, Pursuant to my discussions with Ryan Howard and per your request, this letter is provided to clarify the impervious area assumed in the master stormwater system for water quality treatment and discharge rate attenuation. It is also intended to demonstrate that the addition of pools to the individual homesites has no adverse impact to the stormwater system. The Master Stormwater System Calculations utilized the Soil Conservation Service (SCS) Technical Release 55 (TR-55) to calculate the runoff curve number for the residential lots (typicall/6 Ac. lot). See attached excerpts from the approved Stormwater Calculations (D-1, D-2, D-3). The TR-55 value is used to determine the direct runoff from the site in order to si~ the stormwater ponds for discharge rate attenuation. The water quality calculation accounted for a project wide (lots, roads, amenities) impervious area of35.70 acres or roughly 62.8% of the total non-water surface area (see attached excerpt from the approved Stormwater Calculations F-1). In order to demonstrate that the addition of pools to the individual lots has no adverse impact to the Master Stormwater System I have attached a calculation to determine the maximum project \vide lot impervious percentage with the following assumption, I) that every lot contained the largest available home foot print and 2) every lot contained a 20' x 50' pool/deck area. The calculation demonstrates that the maximum realized average lot impervious area would be 56.9% for the project. Some lots will have slightly more than 60% impervious; some will have less than 50% impervious; however, the maximum aggregate will be less than 57%. In summary, it is our professional opinion that there is no issue from a stormwater management perspective for the addition of a pool/deck area to any/all lots within the development. Trying to set a maximum impervious number on every lot or maintaining an accounting of overall percent impervious area would be a cumbersome and confusing process for both the developer and the City. We respectfully submit that the calculations confirm that other than meeting all the required building setback limitations (7.5' rear and sideyard; 7.5' from face of walls), there should be no prohibition to the construction of pools should a homeowner wish to do so. F:\Proj2005\25044\ENGadmin\C\EC 159 .doc 1 David W7zeeler, P.E. Re: Meadow Ridge Pools August 31, 2007 Page 2 Should you have any questions or concerns please feel free to contact me. Sincerely, Jo 0 send,P.E.. P 0 ect Manager F 'da Registration No: 52127 C: Russ Wagner, AICP Mr. Mark Thomson Ms. Tina Demonstone Mr. Donald W. McIntosh, Jr. John M. Florio, P .E. George D. Delaney, P.E. m Irk f: \Proj2005\2504-l\ENGadmin \C\EC 159 .doc DONALD \fI.1. MciNTOSH Associates, Inc. 2200 PARK AVENUE NORTH. WINTER DARK. FLORIDA 32789-2355. (407)6444068. FAX [407J 644-83.18 DONALD W. MciNTOSH ASSOCIATES, INC. By JTi O p",1 ;7-, JIO-,' ar.e '-;"'- \. Project Subject 2200 Park Avenue North Winter Park, Florida 32789-2355 407-6.<14-4068 Fax 407-644-3318 http://w''''N,dwma,~orn i"V\pr~~OlAi I4dtl P Lol- I y~\. W:iV LOUS (~l.r:uJ t- h G~\ I Ck. Date No, Sheet Of o loi-rJ * d' i oI-s : I S2- . ~(qe~+ h~ .fL+[JIlYLt : 3S~1--S~ LAY\d~{' ,roC' . Dr 1 V'W-.lCu.j arw... L"O CUr qa roq e.,): ;2 ~ I W 1 d.D )( 2-D' de.tp "::: "-1-56 ~P 6 S\ch.wtA.\~ tD 401\+ door .(toJY\ cl1l\Je)u~ : Lj-J l.,Ulch.. X IS' Lonq ::: 1.00 soP o 0t((\J\dC\~~d 1601 ktA: 'A~ 1 dQep X So' uncle; IIOO~ . TIt7i~llJ 1700\ lJJ~'\-h^ .S\.Af~(l~ ArM: \~Jwldt X2G' lOf\q ~ 338 ~Ai D To-\--d to+ \i\J\~-t(Vl~U) CjrcOt - .pooI5v(~uCtu_Q"::5!Co2S~-33cs-9"" Lf8z'-is~ · 10M prouQ.c.-t- \Th1r-e(\J LOU" ()fQfA (6(\ ~ on.ly) = '--181'-1 sf 'X lS21~ =- 733,2c.iSs+' = 1(P,t\3/\c · lOW efuoQ.<:t 10-+ o..cerCtq~ (6ft loG 6I\~) = 2'1.57 Ac. 1;+6J p(o~e c-i- wdQ.. Lo-\ fY\1J\.K\mULM \ '{V{p-tv' vioGtS CiSSUY'Y\ll\'1 Q.,vu~ lo{ hD s o~ ?oo\ (}.1\~ +n.t \G\f\q?l,'A rlQ(Y\.L -Rvt-9'(\i~,J : 1~.8~ At. / Z~.s7Ac -= O.s(o~ -::: ~Iq;: J DONALD W. MciNTOSH ASSOClATES,INC. '.; -~~1 SHEET 1 -' MEADOW RIDGE (FKA WESTRJDGE) Wet Detention Water Quality Calculations Date: 4/1212005 By: MPB Revised: 9/26/05 Basin: Treatment Pond: Basin Area: POST 1 ~ 2 & 3 SMA-1, 2 & 3 60.96 acres Pervious Impervious Water Total Land Cover Area (ac) Area (ac) Surface (ac) Area (ac) Open Space (Good) 21.15 21.15 !m"p~rvi~lJs 35.70 35.70 Water Surface 4.11 4.11 Totals 21.15 35.70 4.11 60.96 Area Summary Treatment Volume Calculations Does system discharge directly to O.F.W. or Class 1111 waters? i-in. x Total Area = 5.08 ac-ft 2.S-in. x Impervious Area = 7.44 ac-ft IRequired Treatment Volume = 7.44 ac-ft Pond Data No , . \' T u+o.l 0. no... e..-~ e.-ll.1S l Vc. D, n SMA t,0CL\..e. (' t::.'~l{-t-o.LL :: 1.00. q(p - Lt, \ \ -:: 5i.D .6-5/",- Bottom Grade Break DNW , - % \Mre{\IlcNS Vl5€.d l{~ . lAJO.Jtf' ~VlD..ll~ C:c..Lc.u.la...\1.OJ\ <= 75;'10 -;: S(o,BS =- {j,&;2.5 :: (uZ.'8;~ 0.00. 4.34 9.13 14.39 20.14 23.33 Outside Top of Berm Minimum weir elevation = 1/2 Treatment volume elevation = 124.65 ft 123.86 ft Permanent Pool Volume Calculations Drainage Area (ac): 60.96 Residence Time (days): 21 Wet Season (days): 153 Wet Season Rainfall (in): 32 Runoff Coefficient: 0.66 Base Flow (cis): 0.2745 Littoral Zone Provided? No Desi n Weir elevation = Treatment Volume Provided = 124.80 ft 8.17 ac-ft ~~y ~~qu..ired (a~-ft): PPY:f.r~vide~(aC?-ft): ~eanl?ep.!h (ft): Max. Depth (ft): 26.10 32.62 7.9 12 i I I PAVI~Net O6t) F:\Proj2004\2 4202IENGCalcslStormIWestridge-Basin.xls DONALD W. McINTOSH ASSOCIATES, iNC. MEADOW RIDGE (FKA WESTRJDGE) Post Development Basin Hydrology Calculations Basin: Re~~iv~n9 Node: Basin Area: POST-i SMA-1 13.92 acres Curve Number (CN) Calculations Soil Index Number 26 44 46 Soil Index Name Dna Fine Sand Smyrna Fine Sand Tavares Fine Sand. 0 to 5% slopes SHEET V- Date: 4/12/2005 By: MPS Ck: Revise::.! 9/3012005 Hydrologic Group BID BID A Land Cover Commercial & Business CommerciaTa.- Business -7 Residential 1/6 Acre WaterSulface Hydrologic Group A D D D CN 89 $ Area (ac) 5.31 3.49 4.26 0.86 13.92 Total: I Time of Concentration (Te) Calculations . Equations Sheet Flow: Tt= 0.007(nUO.8 (4.8)0.5 (50.4/100) where: Shallow Concentrated Flow: Tt= L 60V where: Channel Flow: Tt= L 60V where: Calculations CN x Area 472.6 331.6 383.4 ~ 84.3 I I (jomposlte CN = 91 I L :5 300 ft. S = slope (%) n = Manning's Roughness CoeTI. Unpaved: V=16.1345 (S)0.5 Paved~ V=20.3282 (5)0.5 V=2.5 fps (assumed) T e of Flow Sheet Flow ChanneVPi e Flow Length (Ll ft 185 335 Roughness Coefficient n 0.3 Travel Time (TJ min) 30.1 2.2 2.50 I Time of Cone. = 32 Minutes Post Development F:\Proj2004\24202\ENGCaicslStorm\Westridge-8asin.xls DONALD W. MciNTOSH ASSOCIATES, INC. f. " SHEET ~- ~ MEADOW RIDGE (FKA WESTRJDGE) Post Development Basin Hydrology Calculations Date: 4/12/2005 By: MPB Ck: Basin: I!~ce.iyin~ Node: Basin Area: POST-2 SMA-2 43.60 acres Revised 9/30/2005 Curve Number CN Calculations Soil Index Number 20 46 Soil Index Name Immokalee Fine Sand Tavares Fine Sand. 0 to 5% slopes Hydrologic Land Cover Grou CN Area ac CN x Area -"":> Residential 1/6 Acre A ~ 25.44 1755.4 ~ -"> Residential 1/6 Acre 0 14.24 1281.6 ...0--- *7th Ave A 98 1.50 147.0 Water Surface D 98 2.42 237.2 Total: 43.60 Composite CN = 78 Time of Concentration (T c) Calculations Length (L) ft 180 250 600 T e of Flow Sheet Flow Shaliow Cone. (Paved) ChanneltPi e Flow Roughness Coefficient n) 0.4 Slope (S) % 1.00 0.30 Velocity (V) ( s 1.11 2.50 Travei Time (TJ imin) 37.0 3.7 4.0 .1 Time of Cone. = - 45. Minutes . The Coefficient used by PEC for 7th Avenue Secondary Collection System was a Rational Coefficient. To be conservative the Curve Number of 98 is used. This change does not affect the Composite Curve Number for the overall POST-2 basin. Post Development F:\Proj2004124202\ENGCalcslS tonnlWestridge-8asin.xls DONALD W. MciNTOSH ASSOCIATES, INC. MEADOW RIDGE (FKA WESTRlDGE) Post Development Basin Hydrology Calculations Basin: ~~c.e!ying Node: Basin Area: POST-3 SMA-3 3.44 acres Curve Number CN Calculations Soil Index Number 26 Soil Index Name Ona Fine Sand .i' " SHEET iL::." ;.~ Date: 4/12/2005 By: MPB Ck: Revised 9/30f2005 -'/ Land Cover Residential 1/6 Acre water Surface Hydrologic Group D D CN ~ 98 Area (ac) 1.70 1.74 3.44 10tal:1 Time of Concentration (T c) Calculations Length (L) (ft) 75 250 250 Roughness Coefficient n) 0.4 CN x Area 153.0 ~ 170.5 I , Composite CN = 94 T e of Flow Sheet Flow - - - - - Shallow Cone. (Paved) ChannellPi e Flow Slope Velociiy Travel lIme (S) (V) (TJ % fps (min) 1.00 18.4 0.30 1.11 3.7 2.50 1.7 1 ime of Cone. = 24 Minutes . ~asin: '. Receiving Node: Basin Area: WETLAND 999JWETLAND)' 25.46 acres Curve Number (CN) Calculations Soil Index Number 3 26 42 Soil Index Name Basinger Fine Sand, depressional Ona Fine Sand SanlbelMuck . Hydrologic Group D BID BID Land Cover Wetlands Hydrologic Group D CN 98 Total: 1 Area (ac) 25.46 25.46 Time of Concentration (T J Calculations Length (L) ft 100 500 900 Roughness Coefficient n 0.24 0.24 Slope (S) (%) 0.50 T e of Flow Sheet Flow Shallow Cone. (Unpaved) Channel/Pi e Flow Note: 1D-minute Time of Concentration is used where calculated value is less. CN x Area 2495.1 1 I Composite CN = 98 i Velociiy (V) ( s) I ravel Time (TJ (min) 20.3 5.6 6.0 1.50 2.50 I Time of Cone. = 32 Minutes Post Development F:\Proj2004\24202\ENGCalcs\Storm\ Westridge-Basin.xls Chapter 2 Estimating Runoff Technical Release 55 Urban Hydrology for Small Watersheds Table 2-2a Runoff CliVe numbers for urban areas JI --.- Cover description CliVe numbers for -hydrologic soil group - Cover type and hydrologic condition Average percent impervious area 21 A B c D Fully developed urban areas (vegetation established) Open space (lawns, parks, golf courses, cemeteries, etc.);Y: Poor condition (grass cover < 50%) .......................................... Fair condition (grass cover 50% to 75%) .................................. Good condition (grass cover> 75%) ......................................... Impervious areas: Paved parking lots, roofs, driveways, etc. (excluding right-of-way) ............ ......................... ........................ Streets and roads: Paved; curbs and st~mn sewers (excluding right-of-way) ............................... ................... ....... ....... .......... ...... Paved; open ditches (including right-of-way) .......................... Gravel (including right-of-way) ................................................. Dirt (including right-of-way) ...................................................... Western desert urban areas: Natural desert landscaping (perviOUS areas only) g ..................... Artificial desert landscaping (impervious weed barrier, desert shrub with 1- to 2-inch sand or gravel mulch and basin borders) ...................................................................... Urban districts: Commercial and business ................................................................. Industrial ........................................................ ......... ...... ......... ........ ..... Residential districts by average lot size: y. --",,"1/8 acre or less (town houses) .......................................................... (p 1/4 acre ................................................................................................ 1/3 acre ........................ ...................... .... ............ ...... ....... ......... ............ 112 acre .................................................. .................. ....... .... ................. 1 acre ............ ........ ........................................................... .................... 2 acres ........... ........ ......... ............... ................................... ...... .............. Developing urban areas Newly graded areas (pervious areas only, no vegetation)!Y ............. Idle lands (CN's are determined using cover types similar to those in table 2-2c). 68 79 86 89 49 69 79 84 39 61 74 80 98 98 98 98 98 98 98 98 83 89 92 93 76 85 89 91 72 82 87 88 63 77 85 88 96 96 96 96 85 89 92 94 95 72 81 88 91 93 65 77 85 90 9" 38 61 75 8.3 874-- 30 57 72 81 85 'r 54 70 80 85 ~O 20 51 68 79 84 12 46 65 77 8:! 77 86 91 94 I Average nmoff condition, and 1. = 0.28. 2 The average percent impervious area shown was used to develop the composite CN's. Other asswnptions are as follows: impervious areas are directly connected to the drainage system, impenious areas have a CN of 98, and pervious areas are considered equivalent to open space in good hydrologic condition. CN's for other combinations of conditions may be computed using figure 2-3 or 2-4. 3 CN's shown are equivalent to those of pasture. Composite CN's may be computed ror other combinations of open space cover type. 4 Composite CN's for natural desert landscaping should be computed using figures 2-3 or 2-4 based on the impervious area percentage (CN = 98) and the pervious area CN. The pervious area CN's are assumed equivalent to desert shrub in poor hydrologic condition. 5 Composite CN's to use for the design of temporary measures during grading and constnlction should be computed using figure 2-3 or 2-4 based on the degree of development (impervious area percentage) and the CN's for the newly graded pen-ious areas. * (210-VI-TR-55, Second Ed., June 1986) 2-5 This is a sample letterhead using the Papyrus font Page 1 of 1 MEMORANDUM TO: J. Antonio Fabre, Planning Department FROM: Ryan P. Howard, E.I. , Engineer II thru David Wheeler, P.E. , City Engineer DATE: September 20,2007 RE: Meadow Ridge waiver to increase allowable 50% impervious. The Engineering Department has reviewed the request from a stormwater engineering standpoint and after reviewing the original stormwater calculations as well as supplemental information supplied by the design engineer of record, the stormwater system as designed will support the increase in the average impervious area to 58%. The stormwater system as designed was initially based on several conservative assumptions that when compared to the actual conditions provided more than enough treatment and storage for the additional increase in impervious area. The 58% impervious area is based on the ultimate maximum possible area of imperviousness. This would be if every lot had the largest size house foot print and a pool. file:/ /C:\City%20Commission\2007\N ov%2020\MeadowRidgePUDAmendment\Meadow... 11/1212007 Meadow Ridge Maximum lot.lrnpeMolls Ar(i!a Percentage (by lot) Lot # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Lot Area {sf} 9646 8222 9006 7182 11477 7150 7150 9553 8125 9553 7150 7150 7150 11486 7150 1150 8994 7150 7170 7910 7500 8419 8453 7150 7150 7150 7150 7150 8946 7151 7150 79'23 11124 7150 7150 7150 8812 8804 8080 7171 8324 7840 Max Irnp..% 50 59 54 60 50 60 60 51 60 51 60 60 60 50 60 60 54 60 60 60 60 58 58 60 60 60 60 60 55 60 60 60 60 60 60 60 55 55 60 60 59 60 Max Imp. Area {sf) 4823 4851 4863 4309 5739 4290 4290 4872 4875 4872 4290 4290 4290 5743 4290 4290 4857 4290 4302 4746 4500 4883 4903 4290 4290 4290 4290 4290 4920 4291 4290 4754 6674 4290 4290 4290 4847 4842 4848 4666 4911 4704 Meadow Ridge Maximum Lot tmpervious Area Percentage (by lot) lot # 43 44 45 46 47 48 49 50 51 52 53 54 S5 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 lot Area (sf) 72.80 7280 7280 8729 12273 9399 8830 7280 7280 7280 7840 8954 7674 7594 7518 9626 8933 7605 11977 12162 11287 8815 8042 7733 7814 8096 7875 7312 731.3 7312 73'12 10229 8650 10331 7317 7312 7313 7313 7875 8102 7781 7748 Max Imp. % 60 60 60 56 50 52 55 60 60 60 60 55 60 60 60 50 54 60 SO 50 SO 55 60 60 60 60 60 60 60 60 6.0 50 56 50 60 60 6(11 60 60 60 60 60 Max Imp. Area (sf) 4368 4368 4368 4888 6137 4887 4857 4368 4368 4368 4704 4925 4604 4556 4511 4813 4824 4563 5989 6081 5644 4848 4825 4640 4688 4858 4725 4387 4388 4387 4387 5115 4844 5166 4390 4387 4388 4388 4725 4861 4669 4649 Meadow Ridge Maximum lot Impeflllous Area Percentage (by lot) LotI 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 12.2 123 1~4 125 126 Lot Area {sf} 1'637 9014 9436 7424 7150 7150 8516 9251 9598 10307 7803 7800 7800 1800 7800 7800 7899 8140 10997 8654 7810 7818 9258 12977 8475 8125 8137 7800 7800 7800 8271 8266 8963 8880 8173 8160 1990 9060 14173 14479 8795 82.19 Max Imp. % 60 S4 52 60 60 60 57 52 51 50 60 60 60 60 60 60 60 56 50 56 60 60 53 50 57 60 60 60 60 60 59 59 54 55 60 60 60 54 50 50 55 59 Max Imp. Area (sf) 4582 4868 4907 4454 42.90 4290 4854- 4811 4895 5154 4682 4680 4680 4680 4680 4680 4739 4894 5499 4846 4686 4691 4907 6489 4831 4875 4882 4680 4680 4680 48 SO 4877 4840 4884 4904 4896 4794 4892 7087 7240 4837 4849 I .. ---- Meadow Ridge Maximum lot Impervious Area Percentage (by lot) Lotti 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 Lot Area (sf) 8730 10812 10129 8385 8125 8125 8750 8125 8125 8125 8125 8331 9639 10238 8476 8125 8125 812.5 8125 8125 11920 13058 9767 1150 7150 7246 Project 1287864 Max Imp. % 56 50 SO 58 60 60 55 60 60 50 60 58 51 50 57 60 60 60 60 60 SO 50 50 60 60 60 57 Max Imp. Area (sf) 4889 5406 50'65 4863 4875 4875 4813 4875 4875 4875 4875 4832 4916 5119 4831 4875 4875 4875 4875 4875 5960 6529 4884 4290 4290 4348 731631 'i,.~~ ~ l 1; ~,. ~~" 1iJi ~~ iil~ g i1 ~ I ~~'r:m :~~"',o :et~ ~fiii-8 ~i(t f;!~ ~C! f!:~'~ ~~ ~tl~g ;!;\n '';)~ 8[~C fI' ,~4Y ~ n, b t:J a ~ ::tr (3 Q n, m o ~~"i1 ,t~ ! p..... ~@2~ ~~ ~<~ ,/ (It ~~:~ /:~; '0 >" ;~t /'sa&: /' , -J :;:~/ :t?,~8 t,<; I ---I ::-.,,-. : ~~*! i ;!\'4 , -"'---~-i m l~ i;1;;_ "'0.;;111 ~!t.t- / /''''- L./"'- /' I' :::--.. ~- '.... ;. ?,/ / ---""'---",,,,,,...-"" "',,- ,~, ~ ~ :. ~' ~ ;;l ~~,tCJt ~~~o -,.;-;;.~..__.-.~- ;~t! ,')~ -;;;- ~~!'~ Ii.'L u~~ 2l ~~ ~:l1 ~izf!'~ #;':l_, \1:~ ~.8: ;~ !i \ ! ~ o m ! ~ I: S -I I en i I g ~ ~ ~~2 o ~~' .':~I";lQ o .I;'!l-"" P'<<s ! ~~Ii ~'~ mi~~ o~ m]~s o ~g; ~~ ::!'E@ ,~""I ~'!: -~:ti;~ ~ ~~- I rn" .'1 ~<lli (',' J i~~ I ~~tll ~ ",\1 m o 1 g "';; j ~~'~l ;~\; , ;,yilt ~:~~ ,~'i ,4:)~ ~g!l: ~~ F>><:.i ~~:~ ~~ .; 'o\lI ,3SO!I ~~A 3IIW_a:1 ;~~~ I ^~J. "." :~{.jt I ~~a:! ';ij~ th~l: ~<~ ~~ ,!;: ~ ! ;~~ : 8 I gIg lOti ai~~ - . _J...~O: 0"'" ~ gig { 81 ~i t" "'9t! l81f I ii~ W ! ~a", /., I j ';1:~' ::~(a / ~'~t.- ! ,.~.\ j ;~ ~ I I ai@ 8: ",'(1 8 g 8 ~~ 2~ ~~-t ~~t ,"!}%1 ;!):~ ~'; ?Jl;'\lJ :.;~1 ~~ ......,~.l)J: ~<- ~~o. a~~.f ~~:t '.. J -", I <il<li'" ,. ~,~ / i I 8 i :,~~ / J~*;! ~~1: I -.. j-ti/~t, 0 I I 0", i "'" ! 8 ! m , fi!j~ J'~~Q .. ~:~ I' 0 I fJt ..~.. - ( >{ic.....; f ;;:t;81, ~3 I 01 f';~ ~"f J ).c~ j ~~t...l ;:~ c,. I ~.~ <Jt/ ~~~ { ~'lt.; ! 8 ,,~ ~:::t .t:'\4 g S ~',,, ~;;;~ ~''4 g S f!~ ~~:,m i{'q "!g \ ~;~E \ $\-'fI . ,)>J ::'<.1 q~.;; }\40 ~XE: ~~' ! g ~ --*- \-----1 - PUL TE: HOME r.;ORP -=:~ ORDINANCE NO. AN ORDINANCE OF THE CITY OF OCOEE, FLORIDA APPROVING A SUBSTANTIAL AMENDMENT TO THE RESIDENTIAL PORTION OF THE SECOND REVISED LAND USE PLAN FOR WESTRIDGE PUD (K/N/A MEADOW RIDGE PUD) ON CERTAIN REAL PROPERTY LOCATED AT THE SOUTHEAST QUADRANT OF THE INTERSECTION OF MAGUIRE ROAD AND MOORE ROAD, AS PETITIONED BY THE PROPERTY OWNER; AMENDING THE RESIDENTIAL PORTION OF THE SECOND REVISED LAND USE PLAN FOR WESTRIDGE PUD (KIN/A MEADOW RIDGE PUD) TO ALLOW A MAXIMUM IMPERVIOUS AREA RATIO FOR EACH INDIVIDUAL RESIDENTIAL LOT IN ACCORDANCE WITH A LOT TABLE PROVIDED BY THE PROPERTY OWNER, IN LIEU OF A MAXIMUM IMPERVIOUS AREA RATIO OF 50% PER LOT FOR ALL RESIDENTIAL LOTS, AS PREVIOUSLY APPROVED; REPEALING INCONSISTENT ORDINANCES; PROVIDING FOR SEVERABILITY; PROVIDING AN EFFECTIVE DATE. WHEREAS, the owner of certain real property located within the corporate limits of the City of Ocoee, Florida, as described in the Exhibit "A" has petitioned the City Commission of the City of Ocoee, Florida (the "Ocoee City Commission") to approve an amendment (the "Amendment") to the residential portion of the Second Revised Land Use Plan for Westridge PUD (k/n/a Meadow Ridge PUD), as approved by the Ocoee City Commission on August 17,2004 (the "Land Use Plan"); WHEREAS, the Amendment was scheduled for study and recommendation and was reviewed by the Development Review Committee ("DRC") on September 26, 2007; WHEREAS, the DRC recommended approval of the Amendment; WHEREAS, the Amendment was scheduled for study and recommendation by the Planning and Zoning Commission of the City ofOcoee, Florida ("PZC"); and WHEREAS, on October 9,2007, the PZC held an advertised public hearing and recommended approval of the Amendment; ORLA_ 608435.1 -1- WHEREAS, the Ocoee City Commission held a de novo public hearing with public notice thereof with respect to the proposed Amendment and this Ordinance on ; and WHEREAS, the Ocoee City Commission considered this Ordinance in accordance with the procedures set forth in Section 166.041 (3), Florida Statutes, and determined that this Ordinance is consistent with the Ocoee Comprehensive Plan, as amended. NOW, THEREFORE, BE IT ENACTED BY THE CITY COMMISSION OF THE CITY OF OCOEE, FLORIDA, AS FOLLOWS: SECTION 1. Authority. The City Commission of the City of Ocoee has the authority to adopt this Ordinance pursuant to Article VIII of the Constitution of the State of Florida and Chapter 166, Florida Statutes. SECTION 2. Amendment to the Land Use Plan. The Land Use Plan is hereby amended to allow a maximum impervious area ratio for each individual residential lot in accordance with the lot table attached hereto as Exhibit "B" and by this reference incorporated herein, in lieu of a maximum impervious area ratio of 50% per lot for all residential lots, as previously approved. The foregoing Amendment amends, supersedes and replaces any contrary provision contained in any previously approved Land Use Plans for Westridge (k/n1a Meadow Ridge) PUD. SECTION 3. Ocoee Comprehensive Plan. The Ocoee City Commission hereby finds that this Ordinance is consistent with the Ocoee Comprehensive Plan, as amended. SECTION 4. Inconsistent Ordinances. All ordinances or parts of ordinances in conflict or inconsistent herewith are hereby repealed and rescinded. SECTION 5. Severability. If any section, subsection, sentence, clause, phrase, or portion of this Ordinance is for any reason held invalid or unconstitutional by any ORLA_608435.1 -2- court of competent jurisdiction, such portion shall be deemed a separate, distinct, and independent provision and such holding shall not affect the validity of the remaining portion hereto. SECTION 6. Effective Date. This Ordinance shall become effective immediately upon passage and adoption. PASSED AND ADOPTED this _ day of ATTEST: Beth Eikenberry, City Clerk (SEAL ) FOR USE AND RELIANCE ONLY BY THE CITY OF OCOEE, FLORIDA; APPROVED AS TO FORM AND LEGALITY this _ day of , 2007. FOLEY & LARDNER LLP By: City Attorney ORLA_608435.1 ,2007. APPROVED: CITY OF OCOEE, FLORIDA S. Scott Vandergrift, Mayor ADVERTISED ,2007 READ FIRST TIME ,2007 READ SECOND TIME AND ADOPTED , 2007 UNDER AGENDA ITEM NO. -3- EXHIBIT" A" MEADOW RIDGE LEGAL DESCRIPTION: That part of the North 1/2 of the Southwest 1/4 of Section 32, Township 22 South, Range 28 East, Orange County, Florida, described as follows: Commence at the Southwest comer of Section 32, Township 22 South, Range 28 East, and run NOo021 '38"W along the West line of the Southwest 1/4 of said Section 32 for a distance of 1330.98 feet to the Southwest comer of the North 1/2 of the Southwest 1/4 of said Section 32; thence N89047'54"E along the South line of said North 1/2 of the Southwest 1/4 for a distance of 60.00 feet to a point on the East right-of-way line of Maguire Road (County Road 439), said point being the POINT OF BEGINNING; thence N00021 '38"W along said right-of-way line, 737.39 feet to a point of cusp with a curve concave Northeasterly having a radius of 20.00 feet and a chord bearing of S47025'37"E; thence Southeasterly along the arc of said curve through a central angle of 94007'59" for a distance of 32.86 feet to the point of compound of curvature of a curve concave Northerly having a radius of 575.00 feet and a chord bearing of N78004'23"E; thence Easterly along the arc of said curve through a central angle of 14052'01" for a distance of 149.20 feet to the point oftangency; thence N70038'22"E, 190.00 feet to the point of curvature of a curve concave Southerly having a radius of 510.00 feet and a chord bearing of S84053'45"E; thence Easterly along the arc of said curve through a central angle of 48055'46" for a distance of 435.53 feet to a point of non-tangency; thence NOoo04'05"W, 518.02 feet; thence N89055'55"E along the South right-of-way line of Moore Road, as described in Official Records Book 4343, Page 4532, of the Public Records of Orange County, Florida, 1762.55 feet; thence S45012'20"E along the Southwesterly line of lands described in Official Records Book 7900, Page 391, of said Public Records for a distance of 70.88 feet to a point on the East line of said North 1/2 of the Southwest 1/4; thence S00020'36"E along said line and the Westerly right-of-way line of Seventh Avenue for a distance of275.18 feet; thence SlO058'19"W along said Westerly right-of-way line for a distance of 305.80 feet; thence S00020'36"E along said Westerly right-of-way line, 659.64 feet; thence S89047'54"W along the aforesaid South line of the North 1/2 of the Southwest 1/4 for a distance of2522.14 feet to the POINT OF BEGINNING. Containing 66.401 acres more or less and being subject to any rights-of-way, restrictions and easements of record. ORLA_608435.1 -4- .. n_----, . . < . EXHIBIT "B" [See attached table] ORLA_608435.1 -5- Meadow Ridge Maximum Lot Impervious Area Percentage (by lot) Lot If 1 2 .3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 Lot Area (sf) 9646 8222 9006 7182 11477 7150 7150 9553 8125 9553 7150 7150 7150 11486 7150 7150 8994 7150 7170 7910 7500 8419 8453 7150 7150 7150 7150 7150 8946 7151 7150 7923 11124 7150 7150 7150 8812 8804 8080 7777 8324 7840 Maxlmp. % SO 59 54 60 50 60 60 51 60 51 60 60 60 50 60 60 54 60 60 60 60 58 58 60 60 60 60 60 55 60 60 60 60 60 60 60 55 55 60 60 59 60 Max Imp. Area (sf) 4823 4851 4863 4309 5739 4290 4290 4872 4875 4872 4290 4290 4290 5743 4290 4290 4857 4290 4302 4746 4500 4883 4903 4290 4290 4290 4290 4290 4920 4291 4290 4754 6674 4290 4290 4290 4847 4842 4848 4666 4911 4704 Meadow Ridge Maximum lot Impervious Area Percentage (by lot) loU 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 lot Area (sf) 7280 7280 7280 8729 12273 9399 8830 7280 7280 7280 7840 8954 7674 7594 7518 9626 8933 7605 11977 12162 11287 8815 8042 7733 7814 8096 7875 7312 7313 7312 7312 10229 8650 10331 7317 7312 7313 7313 7875 8102 7781 7748 Max Imp. % 60 60 60 56 SO 52 55 60 60 60 60 S5 60 60 60 50 54 60 SO 50 SO 55 60 60 60 60 60 60 60 60 60 50 56 50 60 60 60 60 60 60 60 60 Max Imp. Area (sf) 4368 4368 4368 4888 6137 4887 4857 4368 4368 4368 4704 4925 4604 4556 4511 4813 4824 4563 5989 6081 5644 4848 482S 4640 4688 4858 4725 4387 4388 4387 4387 5115 4844 5166 4390 4387 4388 4388 4725 4861 4669 4649 Meadow RIdge Maximum lot Impervious Area Percentage (by lot) Lot If 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 ill 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 Lot Area (sf) 7637 9014 9436 7424 7150 7150 8516 9251 9598 10307 7803 7800 7800 7800 7800 7800 7899 8740 10997 8654 7810 7818 9258 12977 8475 8125 8137 7800 7800 7800 8271 8266 8963 8880 8173 8160 7990 9060 14173 14479 8795 8219 Max Imp. % 60 54 52 60 60 60 57 52 51 SO 60 60 60 60 60 60 60 56 50 56 60 60 53 50 57 60 60 60 60 60 59 59 54 55 60 60 60 54 50 50 55 59 Max Imp, Area (sf) 4582 4868 4907 4454 4290 4290 4854 4811 4895 5154 4682 4680 4680 4680 4680 4680 4739 4894 5499 4846 4686 4691 4907 6489 4831 4875 4882 4680 4680 4680 4880 4877 4840 4884 4904 4896 4794 4892 7087 7240 4837 4849 Meadow Ridge Maximum Lot Impervious Area Percentage {by lot} lot 1# 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 Lot Area (sf) 8730 10812 10129 8385 8125 8125 8750 8125 8125 8125 8125 8331 9639 10238 8476 8125 8125 8125 8125 8125 11920 13058 9767 7150 7150 7246 Project 1287864 Max Imp. % 56 50 50 58 60 60 ss 60 60 60 60 58 S1 50 57 60 60 60 60 60 50 50 50 60 60 60 57 fv1ax Imp. Area (sf) 4889 5406 5065 4863 4875 4875 4813 4875 4875 4875 4875 4832 4916 5119 4831 4875 4875 4875 4875 4875 5960 6529 4884 4290 4290 4348 731631 g ~ ~ ~ iJ{ ~ ~ ~ II: I s ""I ~ I I :;: ~ 1 _u_~J ~~ ..----H=~-_______- CORP ~