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HomeMy WebLinkAboutContract 54441 09/10/20 CSC No.54441 2:43 pm DOE # STORMWATER FACILITY MAINTENANCE AGREEMENT THIS AGREEMENT, made and entered into this day of September4 2020 , by and between QT South LLC, acting by and through QT South LLC, hereinafter referred to as "Landowner", and the City of Fort Worth, hereinafter referred to as `'City'. WITNESSETH WHEREAS, the Landowner is the owner of certain real property described as an approximately 4.670 acre tract located in the Alexander F. Allbright Survey, Abstract 1849, Tarrant County, Texas according to the deed recorded in County Clerk's File No. D220101239, Official Public Records Volume 388-60, Page 25, Deed Records, Tarrant County, Texas,hereinafter called the "Property". WHEREAS, the Landowner is proceeding to build on and develop the Property according to the Site Plan/Subdivision Plan known as QuikTrip Store 9872 hereinafter called the "Plan", which is expressly made a part hereof, as approved or to be approved by the City and the Landowner provides for management of Stormwater within the confines of the Property; and WHEREAS, the City and the Landowner, and their successors and assigns, agree that the health, safety and welfare of the residents of the City of Fort Worth, Texas require that on-site Stormwater Management Facilities be constructed and maintained on a portion of the Property; and OFFICIAL RECORD CITY SECRETARY FT.WORTH,TX STORMWATER FACILITY MAINTENANCE AGREEMENT 1 Rev.1 Ill 7/2016 WHEREAS, the City requires that on-site Stormwater Management Facilities ("Facility") as shown on the Plan be constructed and adequately maintained by the Landowner, its successors and assigns, the location and dimensions of which is shown and more particularly described by metes and bounds in the attached Exhibit "A" ("Facility Property"); and NOW, THEREFORE, in consideration of the foregoing premises, the mutual covenants contained herein, and the following terms and conditions, the parties hereto agree as follows: 1. The Landowner, its successors and assigns, shall adequately construct and maintain the on-site Stormwater Management Facility ("Facility") at no expense to the City of Fort Worth in accordance with the design specifications for the Facility, attached as Exhibit"B", and the current standards then in force and effect in the City of Fort Worth and with the Operations and Maintenance Plan attached to this Agreement as Exhibit "C". The Stormwater Facility includes all pipes, channels or other conveyances built to convey Stormwater to the facility, as well as all structures, improvements, and vegetation provided to control the quantity and quality of the Stormwater. Adequate maintenance is herein defined as good working condition so that these facilities are performing their design functions. The Stormwater Structural Control Maintenance Checklists, attached to this Agreement as Exhibit "D", are to be used to establish what good working condition is acceptable to the City. 2. The Landowner, its successors and assigns, shall inspect the Facility and submit an inspection report to the City annually. The purpose of the inspection is to assure safe and proper functioning of the Facility. The inspection shall cover the entire Facility, berms, outlet structure, pond areas, access roads, etc. Components of the Facility, which need maintenance or replacement to perform their design function, shall be noted in the inspection report along with the corrective actions to be taken. STORMWATER FACILITY MAINTENANCE AGREEMENT 2 Rev.11/17/2016 3. The Landowner, its successors and assigns, hereby grant permission to the City, its authorized agents and employees, to enter upon the Property and to inspect the Facility Property whenever the City deems necessary. The purpose of inspection is to follow-up on reported deficiencies and/or to respond to citizen complaints. The City shall provide the Landowner, its successors and assigns, copies of the inspection findings and a directive to commence with the repairs if necessary. 4. In the event the Landowner, its successors and assigns, fails to maintain the Facility in good working condition as specified herein, the City, its authorized agents and employees, may enter upon the Facility Property and take whatever steps necessary to correct deficiencies identified in the inspection report and to charge the costs of such repairs to the Landowner, its successors and assigns. It is expressly understood and agreed that the City is under no obligation to routinely maintain or repair said Facility, and in no event shall this Agreement be construed to impose any such obligation on the City, such obligation is Landowner's. 5. The Landowner, its successors and assigns, will perform the work necessary to keep the Facility in good working order as appropriate. In the event the City pursuant to this Agreement, performs work of any nature, or expends any funds in performance of said work for labor, use of equipment, supplies, materials, and the like, the Landowner, its successors and assigns, shall reimburse the City upon demand, within thirty (30) days of receipt thereof for all actual costs incurred by the City hereunder. In the event that Landowner or its successors or assigns fail to pay the City for the costs incurred under this section, the City shall impress a lien for the costs of such work upon other lots owned by the Landowner. Such lien shall be perfected by filing in the office of the County Clerk of Tarrant County, Texas an affidavit identifying the property to be charged with such lien, stating the amount thereof, and making reference to this Agreement. 6. This Agreement imposes no liability of any kind whatsoever on the City. THE LANDOWNER AGREES TO HOLD THE CITY HARMLESS FROM STORMWATER FACILITY MAINTENANCE AGREEMENT 3 Rev.11/17/2016 ANY LIABILITY IN THE EVENT THE FACILITY FAILS TO OPERATE PROPERLY. LANDOWNER COVENANT AND AGREE AND DOES HEREBY INDEMNIFY, HOLD HARMLESS AND DEFEND THE CITY OF FORT WORTH, ITS AGENTS, SERVANTS AND EMPLOYEES FROM AND AGAINST ALL COSTS, EXPENSES, LOSSES, DAMAGES, CLAIMS OR CAUSES OF ACTION WHATSOEVER ARISING, OR WHICH MIGHT ARISE, FROM THE FAILURE OF LANDOWNER OR ANY FUTURE OWNERS OF THE ABOVE FACILITITY PROPERTY TO MAINTAIN THE FACILITY, INCLUDING, BUT NOT LIMITED TO THE BED AND BANKS OF THE DETENTION POND; ANY DAMAGES CAUSED TO PERSON OR PROPERTY DUE TO (1) FLOODING OF THE POND AND ITS BANKS, (2) SLOPE FAILURE OF THE BANKS OF THE POND, OR (3) FAILURE OF THE POND OR ITS BANKS TO OPERATE IN A MANNER CONSISTENT WITH CITY OF FORT WORTH CRITERIA TO PERFORM ANY OTHER DUTIES OR OBLIGATIONS HEREUNDER. 7. Landowner covenants and agrees that no habitable building shall be erected within the drainage easement outlined on Exhibit "A" but this paragraph shall not preclude construction of other improvements within the drainage easement, which do not impede drainage. Landowner covenants and agrees that no habitable building shall be erected on the above property abutting such easement which shall have a finished floor at an elevation less than two feet above the maximum depth of water in the detention pond which would occur during a 100 year frequency flood. 8. This Agreement shall be recorded among the land records of Tarrant County, Texas, shall constitute a covenant running with the land, and shall be binding on the Landowner, its administrators, executors, assigns, heirs and any other successors in interests, including any property owners association. STORMWATER FACILITY MAINTENANCE AGREEMENT 4 Rev.1 111 7/2 0 1 6 [SIGNATURE PAGE FOLLOWS] Executed this 4th day of September 20-10 Landowner City of Fort Worth W Dana BurghdofA 4,2020 4 CDT) Nee: � S. Assistant ity Manager c {c��dc• t Approved as to Form and Legality Christa RLopez-Reynolds Sep 3.10 1] T] Assistant City Attorney ga4vvnn4� ATTEST �a °�foRt� 0 9dd °0 �o Pv o=d a���?F°XpSoop City Secretary naaaoo OFFICIAL RECORD CITY SECRETARY FT.WORTH,TX STORMWATER FACILITY MAINTENANCE AGREEMENT 5 Rev.11/170016 STATE OF TEXAS § COUNTY OF TARRANT § This instrument was acknowledged before me on September 8,2020 by Ana 6,&uloR Assistant City Manager of the City of Fort Worth, on behalf of the City of Fort Worth. LAURIE PEQUENO Digitally signed by LAURIE oPRVP�e/ LAURIE PEQUENO LEWIS PEQUENO LEWIS _ Notary Public LEWIS Date:2020.09.08 10:50:21-05'00' * + STATE OF TEXAS Notary I.D.132278952 Notary Public, State of Texas My Comm.Exp,Dec.10,2023 STATE OF TEXAS § COUNTY OF TARRANT § efore me, the undersigned authority on this day of 20)�p personally appeared known to me to be the person whose name is subscribed to the foregoing instrument and ackno d e to me that the same is the act of §mik ,LL•C- , and that he executed the same as its and as the act of such j. Cle and f the purposes and consideration expressed in the foregoing instrument. TM LEE CALDWELL Not lic tate o Texas MyNolwyIGSi16WO E�Iree dt�jr i8,� OFFICIAL RECORD CITY SECRETARY FT.WORTH,TX STORMWATER FACILITY MAINTENANCE AGREEMENT 6 Rev.11 i 1712016 Con trs;ct Compliance Manager By signing I acknowledge that I yam the person responsible for the monitoring and administration of this contract,including ensuring all perfonTnance and.rrpontin-regU!remtnt.S, l a,--, lane S, tdorales Develop.nlent Szrvices NlanaQer OFFICIAL RECORD CITY SECRETARY FT.WORTH, TX EXHIBIT "A" BEING a tract of land situated in the City of Fort Worth, Tarrant County, Texas, out of the Alexander F. Allbright Survey, Abstract No. 1849, being part of Lot 1 , Block 1 , Lots 1 and 2 of Block 1 to Worth Grain Addition, an addition to the City of Fort Worth, Tarrant County, Texas, according to the plat thereof recorded in Volume 388-601 Page 25, Plat Records, Tarrant County, Texas, and being more particularly described by metes and bounds as follows: COMMENCING at a 1/2 inch iron rod with plastic cap stamped "CEI" found for the southeast corner of said Lot 1 , Worth Grain Addition, same being the northeast corner of Lot 1 , Block 1 , Longhorn Business Park, an addition to the City of Fort Worth, Tarrant County, Texas, according to the plat thereof recorded by County Clerk's File No. D217119513, Official Public Records, Tarrant County, Texas, said corner lying in the west right-of-way line of N. Main Street (AKA US-81 ; AKA U.S. Highway No. 287 Business; a variable width public right-of-way) and being in a curve to the left, from which a 5/8 inch iron rod with plastic cap stamped "SCI" set for the the southeast corner of said Lot 1 , Longhorn Business Park bears along said curve, through a central angle of 09 degrees 26 minutes 21 seconds, a radius of 2699.79 feet, an arc length of 444.77 feet, having a chord bearing of South 19 degrees 36 minutes 54 seconds West and a chord distance of 444.27 fleet; THENCE, along the southeast line of said Lot 1 , Worth Grain Addition, said west right-of-way line and said curve to the left, through a central angle of 00 degrees 06 minutes 19 seconds, a radius of 2699.79 feet, an arc length of 4.95, having a chord bearing of North 14 degrees 50 minutes 35 seconds East and a chord distance of 4.95 feet to a 2 inch iron pipe found; THENCE, continuing along said southeast line and said west right-of-way line, North 51 degrees 47 minutes 41 seconds East, a distance of 17.01 feet to the POINT OF BEGINNING of the herein described; THENCE, departing said common line, over and across said Lot 1 , Worth Grain Addition, as follows: North 89 degrees 44 minutes 00 seconds West, a distance of 139.51 feet; North 00 degrees 16 minutes 00 seconds East, a distance of 109.34 feet; South 89 degrees 44 minutes 00 seconds East, a distance of 110.70 feet; North 00 degrees 16 minutes 00 seconds East, a distance of 98.84 feet; South 89 degrees 44 minutes 00 seconds East, a distance of 36.20 feet; South 00 degrees 16 minutes 00 seconds West, a distance of 202.31 feet to a point in said common line, from which a 5/8 inch iron rod with plastic cap stamped "RPLS 5199" set for angle point in said common line bears North 51 degrees 47 minutes 41 seconds East, a distance of 110.19 feet; THENCE, along said common line, South 51 degrees 47 minutes 41 seconds West, a distance of 9.42 feet to the POINT OF BEGINNING, containing 19,616 square feet or 0.4503 acres of land, more or less. �p ©� OF T E,p•F-{• ....................I.......... DOUG_LA_S S. LOOMIS 5199 o glas S. Loo is Date SUO Registered Professional Land Surveyor No. 5199 DRAINAGE AND DETENTION EASEMENT LOT 1 BLOCK 1 903 Bowser Road,Suite 240 r Richaa rdson,Texas 75081 WORTH GRAIN ADDITION (972)424-7002 Voice (VOLUME 388.60, PAGE 25, P.R.T.C.T.) C 1 (972)633-1702 Fax ALEXANDER F.ALLBRIGHT,ABSTRACT NO. 1849 WWW.SurveyConsultantslnc.Com Date: 8/12/2020 Project No. 1014974 l TBPLS Firm No.10139600 SHEET 1 OF 2 EXHIBIT IINI LEGEND CONTROLLING MONUMENT C.C.F. NO. COUNTY CLERK'S FILE NUMBER BASIS OF BEARINGS I.P.F. IRON PIPE FOUND O 60 WEST LINE OF LOT 1 BLOCK 1 I.R.F.C. IRON ROD FOUND CAPPED WORTH GRAIFI AD)SITION I.R.S. IRON ROD SET �� P.R.T.C.T. PLLgqT III Id TARRANT COUNTY TEXAS N 00'16 00 E O.P.R,T,C,T, OPFIGUL PIJBLIL�RECORDS, TARRANT R , TEW SCALE: 1°=60' (VOL. 388-60, PG. 25, P.R.T.C.T., PG. PAGE P.O.B. POINT OF BEGINNING P.O.C. POINT COMMENCING R.O.W, RIGHT-OF-WAY SQ, FT. SQUARE FEET 45/8I R.S. VOL. VOLUME "SCI" A 1§7 �C� W S 8 0"E 36.20 LOT 1,BLOCK 1 LOT 1,BLOCK 1 r , (�• CUB / LONGHORN ADDITION WORTH GRAIN ADDITION C.C.F.NO.D210114281 VOL.388-60.PG.25 J ( �01\- O.P.R.T.C.T. P.R.T.C.T. LU to fzo Cl? v / IO NI IZ �I / � CQ O ________ J of Q '0� r S 89°44'00" E 110.70' N C I z� I r`�i °' o ��2m Wm I o DRAINAGE AND I s/BLR.s. h��Q W M I "RPLS Sing" a DETENTION EASEMENT !3 2 W N (W 19,616 SQ. FT. � �o� I o 0.4503 ACRES 0 ( otig Q' z F- I F>, 'n Nz 4T =l i I b/ m 6o N ' IZ a��% I Yl — — — — — L_ N 89°44'00"W 139.51'__ 518 LR F C. 5/8 I'R.s. N 51°4T41"E 17.01 2°LP.F. A=00°06'19" "WAY' °RPLS 5197' _ _ _ _ (C.M.) R=2699.79' TPRATE 7'53"W N 89°37'53 51W 6.33' 1n"I.R.F.C. �'�L=4.95' .07' Cm1) CB=N 14°50'35"E CESS EASEMENT i i Rc M.) CL=4.95'07327388 15'WATER EASEMENT •OC.C.F.NO.D217119513 A=09°26'21— O.P.R.T.C.T. R=2699.79' LOT 1,BLOCK 1 =444.77' LONGH PARK BUSINESS I _ —_ —20'UTILITY AND CB=N 19°36'54"E .D217119513 I DRAINAGE EASEMENT CL=444.27' C.C.F.NO O.P.R.T.C.T,1 5181.R.S. C.C.F.NO.D217119513 / Iscr, O.P.R.T.C.T. DRAINAGE ,AND DETENTION EMENT 903 N.Bowser Road,Suite 240 LOT 1, BLOCK 1 Richardson,Texas75081 WORTH GRAIN ADDITION (972)424-7002 Voice (VOLUME 388.60, PAGE 25, P.R.T.C.T.) Cl (972)633-1702 Fax ALEXANDER F.ALLBRIGHT,ABSTRACT NO. 1849 WWW.SurveyConsulL-uUslnc.Com Date: 8/12/2020 Project No. 1014974 TBPLS Firm No.10139600 SHEET 2 OF 2 M, i- ....... Ng t a H. -n Qe N� 'WS z . ...... Z.z U, -xt 4 . �-.H z r. ,� op . ; Z ME 0 0 So� .9 FIV Z, Sn' N '4-2 A i8 Z H S f S. At T� M, aim 5 U.9 POV! hi h- -:7� M— .. 4", YIYi-0,ii-04-V 4 "RK 22't -H-U.,49"M, jv L Q!N ......... A ..... -!M V r 6, IJ s3 n- —.-W- H-N f . ....... BE TE. . A m . .... . . .. . A w—K. ­4 -h-m ai V A—5. A --C Pis' K "'M G "9-V'AJA&D.V MERIN NROP arm :�tsns .9 AVMMDIH s,n aio .............. .................. ............... -4 HUN 0 Z>i 0 T WIN, L d 1 1; - _40 M, MD. MEMO 9. 4 lk 01.1 0 12 ✓ ------------------------------------------41----- - un.a Do.9— lei ca ----------- nz 3 3 INLET CAP. FOR AREA B INLET CAP. FOR AREA C COMBINATION INLET (SAG) CURB INLET GRATE INLET FLOW DEPTH IN GUTTER y = 1.24[(Q x n x Sx)/(St/2)?/8 Q = CAf 2gh y = 1.24[(0.50 x 0.016 x 0.01)/(0.03t/2)�/s Q CAP = 0.6 (0.7)12(32.2) (0.5) y = 1.24[(0.00008)/(0.1732)?/' Q CAP = 2.38 cfs y = 0.07 USING FIGURE 1.3 FROM iSWM TECHNICAL MANUAL, CURB INLET Eo = 0.8 Q = CA 2gh SE = S,t + S'wxEo Q CAP = 0.6 (1.8),r2(32.2) (0.5) SE = .016 + .022 x .8 Q CAP = 6.13cfs SE = .034 USING FIGURE 1.8 FROM iSWM TECHNICAL MANUAL, Qcv = 0.4CFS GRATE CAPACITY + CURB CAPACITY = 8.51 QA = 0.5 CFS Q100=1.66 CFS Qo = 0.1 CFS TO TRENCH DRAIN AREA D USE SINGLE INLET 8.51 x 1 = Q CAP=8.51 cfs Qcv FOR AREA D TRENCH DRAIN IS 4.45 CFS t 0.7 AREA OF OPENING PER NEENAH CATALOGUE ABOVE REQUIRED, AND BOTH DRAINS CONVEY FOR TYPE 'L' GRATE WATER TO UNDERGROUND STORAGE INLET CAP. FOR AREA F INLET CAP. FOR AREA K CURB INLET COMBINATION INLET (SAG) FLOW DEPTH IN GUTTER GRATE INLET y = 1.24[(Q x n x Sx)/(S'/2)?/8 y = 1,24[(1.41 x 0.016 x 0.02)/(0.0231/2)]/8 Q = CA 2gh y = 1.24[(0.00045)/(0.1517)?/' Q CAP = 0.6 (0.7 2(32.2) (0.5) y = 0.14 Q CAP = 2.38cfs USING FIGURE 1.3 FROM iSWM TECHNICAL MANUAL, Eo = 0.5 CURB INLET SE = Sx + S'wxEo Q = CA 2gh SE = .02 + .022 x .5 Q CAP = 0.6 (1.8 2(32.2) (0.5) SE = .031 Q CAP = 6.13cfs USING FIGURE 1.8 FROM iSWM TECHNICAL MANUAL, QcAp = 0.8CFS GRATE CAPACITY + CURB CAPACITY = 8.51 QA = 1.91 CFS Q100=2.33 CFS Cb = 1.11 CFS TO TRENCH DRAIN AREA E USE SINGLE INLET 8.51 x 1 = Q CAP=8.51 cfs O;,p FOR AREA E TRENCH DRAIN IS 4.13 CFS t 0.7 AREA OF OPENING PER NEENAH CATALOGUE ABOVE REQUIRED, AND BOTH DRAINS CONVEY FOR TYPE 'L' GRATE WATER TO UNDERGROUND STORAGE STORE NO.: 872 NAME: EXHIBIT B REVISION: TITLE: DATE: 08/31/2020 DRAWN BY: CMA AREA D-INLET CAP. FOR INLET CAP. FOR AREA Q TRENCH DRAIN TYPE 'Y' INLET (SAG) TRENCH DRAIN (RECTANGULAR WEIR) TYPE 'Y' INLET Q = 3.33*H1.5(L-0.2H) Q = ((CA) (29h)) * 4 Qi = .298(37.7 -.04) Qi = 11.22 cfs Q CAP = ((0.67) (2.33) 2(32.2) (1.0)) *4 Q CAP = 50.11 cfs Q100=1.16 USE 50% EFFICIENCY QCAP=5.61 cfs AREA E-INLET CAP. FOR INLET CAP FOR JIM WRIGHT TRENCH DRAIN CURB INLETS (SAG) TRENCH DRAIN (RECTANGULAR WEIR) CURB INLET Q = 3.33*H'•5(L-0.2H) Q = C4 2gh Qi = .298(38.9 -.04) Q CAP = 0.6 (4.9) 2(32.2) (0.5) Qi = 11.58 cfs Q CAP = 16.68 cfs Q100=1.66 USE 50% EFFICIENCY Q100=1.33 CFS QCAP=5.79 cfs INLET CAP. FOR AREA L INLET CAP. FOR TURN COMBINATION INLET (SAG) LANE CURB INLETS GRATE INLET FLOW DEPTH IN GUTTER y = 0.5 Q = CA 2gh (ASSUME FULL GUTTER DEPTH FOR MAXIMUM FLOW) Q CAP = 0.6 (0.7)f 2(32.2 (0.5) USING FIGURE 1.3 FROM iSWM TECHNICAL MANUAL, Q CAP = 2.38cfs Eo = 0.35 CURB INLET SE = SX + SW x Ea SE = .06 + .025 x .35 Q = CA 2gh SE = .069 Q CAP = 0.6 (1.8 2(32.2) (0.5) Q CAP = 6.13 cfs USING FIGURE 1,8 FROM iSWM TECHNICAL MANUAL, Qup = 1.6CFS QA = TRAPPED FLOW FROM MEDIAN GRATE CAPACITY + CURB CAPACITY = 8.51 QA = 5.07 CFS Q100=21.70 CFS 4 INLETS ALONG MEDIAN, USE TRIPLE INLET 8.51 x 3 = Q CAP=25.53 cfs TOTAL Qw = 5.6 CFS AS t 0.7 AREA OF OPENING PER NEENAH CATALOGUE NEW INLETS ARE BEING INSTALLED REPLACEMENT FOR 4 SLOTTED OPENING CURB FOR TYPE 'L' GRATE INLETS STORE NO.: 872 NAME: EXHIBIT B REVISION: TITLE: � DATE: 08/31/2020 DRAWN BY: CMA 7 Hydrograph Report Pond Report 5 Hry/y.Mbq ors E+:avnry Mluf•�6.93042019 try NA•ees4 MC YNl94 Vaufal.0]/telMl9 e���H���ErmaaorbAuohN®c�N'93MI9 tr/.WL<ei4.tc.'M+9.3 WYMa+Uar.05;i!3Bt9 Hyd.No.2 Pond No.1-�N.w Pond- RELEASE FROM POND Pond Daft Canleun J2wM5<d rmgayeav G�z mki*J1:ee01<r'^L.ra WCWs:Bry'ffrg 7T.'Y-*^']10}9 R Vmis=9]Ede Hydrograph type =Reservoir Peak discharge = 13.10 cfs Stage I storage Tab]. Storm frequency =100 yrs Time to peak =50min -.11) El..alpn rot o«e<m J�a(wro w.sla+af t<�n} rrmffo.w.l<.RI Time interval =1 min Hyd.volume =56.475 cult om ]1o3e +az1s o a Inflow hyd.No. =1-OT SITE Max.Elevation =714.33 ft I m ]n ra ;:2;" Max. +sn1 Ism _<New Pond> Max.Storage =59,392 cuff x m n2x fans !But 3o.az Reservoir name 9 aW r133a +sns ,lll seat J W ]14la 1-1 ,sn1 wsas 5bnga 4+oo+armar w uJYS. St.q.I Stong.I Discharge Tabl. 9nOf a-" CNA CNe r0 IdRJr WrA WEB Wr0 Wre FiRI User tpYl A <ua B <Is <sa efa ch <M1 cM1 <Is eM1 <h qa U OW 0 r10N 0.10 I,St ]I940 a40 D.eD 7,11 ]tare Om r,611 )IOde Qm _ _ _ _ __ _ _ _ _ Om0 RELEASE FROM POND am V. ]lose nm = - - - _ _ _ _ _ a- O(ds) aids) aW izlfi]�i i1.1MB am _ ._ _ _ _ _ _ _ _ aom H)d.No.2-100 Year 0.90 11fi99 ]1f20 0.m OOm I.m 1i]3t rtf� am 00 30.00 .00 =';l 1.1. ts]43 m.» 7: _ .I.N..nE�- tm 19.108 )11.8 Om 0'� itar z f 1 nlaa om a.DDa 25.00 )----+ +� 25.00 asf5 Im Zr.AJO ]1210 390k "' 4BI1 O_ 20.00 2M 33,4e] r125a 0.10 _ k 6E� 20.00 : ._ _ - - --- 2m 395I5 )1299 e39C ]taro - - ZeD u2B19 ]l 15.00 15.00 _ - -.._ n f],iBO it].se t049C I -- I30 SaYA ]138! loss, - _ _ _ _ _ _ _ _ 1WO0.BJ _ r=. .. rtsre lf.ftk - 10.00 =;� 'Olr- ..- 10.00 ]4`A0 55124 a.1. r139aUro ] - r 12;flk]00 N1 5l 5r.6a1 )fa.10 1212k _ _ _ _ _ _ - _ - 1268 �9] 59.]61 ri<^0 1296c 5.W -- � 5,00 m mass ru 3e 13z3c IT y. noo oo 0 20 40 60 80 100 120 140 160 180 200 Tire(trin) -Hyd No.2 -Hyd No.I -.I T.W.1-ge used=59,392 tuft Pond Report 3 Pond Report Roo Hpega{ns Easeam bNr4tr+ff+Crt}DbA19 b/Aubdefk Rc•Mt92 WLLp.mflerMl9 }RtrM. NrdmygN E-AW4 -3B6Xf19ry Wabsl12 Y.0192 H+:dar.01110/M19 Pond No.1-tNaw Pond> Pond No.1-<N.w Pond> Pond Data Pond Data eua Lsa�#'aimm'>axaf.Cati:mNaOteeE krvvs'neraYN�n'f.Bagny EY•atluf=rl0.'�aVatls=Pl0.<5 e<-LwMrrrOweiranv-Con< roi,aN!a revf+cY<Je'nn.2aJnM E'a+Yan=rIONM1VNs-93e9% Stage I Storage�abl. S(age I Storage Eable T✓ra ifap(N rvauon lnl eonrow analfnro Lxr.sMpa1<Yr4 row alw+w lw44 sn9a(ni I...aoa lsl eaamw area(gro kcr.atwa9a(wro .Ya 1<Ynl OW 110.Y fa215 0 Om 1;0 IB�fS 0 0 tm ]I1 YA 10.315 15311 11321 im ]11N 0215 IS3zf 15X1t 2m ]13.8 16315 15321 ]O.MZ Zm li2 fi211 tits+ ]O,f13 lm 1133e 18215 ii32f 4fi.66J JW 113]B 18215 11221 45.i6r am !foss 18215 15221 fi0,e65 4W ]1l]a IB215 iS321 meal C.1-tl Orifl-St-tuna Well Sfrootun. Cid-tI Drills.Seu<lur.. 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No Np mal.r.@I =rr190 YoIFSnq =aa No No mBYr.(ro =nvsa .a.....•.fm�.....,•-.nm..n.s.w.,,=..a:m.=.:.�...,�d..ed...,..r...«->•.1 ...:ra..mme....«rw...,a«,..m�r..we.,a.m.er,.ma�..w..�ro su9.1R1 Stag.I Olaeharg. st g.I storeg. !.m TUJe am i : ] a6D-_ I- .._0 71- 2m -i1210 .n Lm _ O.m � ]10�d OW ]1038 00) 1.W 2a) am 4m am aw ].m am am Ism I1 tb JZW lam nm o BAGO 120m Om 34000 3a0m 3a040 J20m Jdtm 51.m'1 W.OJD fi6A4']] onw9.(afl -gnaw sv.]alaAl -TowO - STORE NO.: 872 NAME: EXHIBIT B REVISION: TITLE: � DATE: 08/31/2020 DRAWN BY: CMA MODIFIED RATioNAMETM Existing Runoff Coefficient 0.3 Proposed Runoff Coefficient 1 0.5 Area 12.81 Acres Area 12-81 :Acres Time of Concetration 46 Min. Time of Concetration _ 3L57 ;Min. l Year Runoff 633 CFS lYearRunoff 13.61 '.CFS S Year Runoff 10.02 ICFS 5YearRunoff 21.(F9 '.CFS 100YearRunoff 17.39 'CFS 10OYearRunoff 35.91 '.CFS Q.rvr 6.33 CFS Table 5.15: For 1 Yr Return Period:e=0.8217,b=43.653,d=8 10.02 CFS Tarrant County For 5 Yr Return Period:e=0.8142,b=71,154,d-12 C,loon= 17.39 CFS Rainfall Data For 100Yr Return Period:e=0.7798,b=110.202,d=14 Tat= 37.e>! Min. For 1Yr Return Period;a=9S.84,b=13.43 Tas= Table 1.18 d5.20 Min. Rainfall Factors ForSYr Return Period:a=170.S1,b=19.44 T.. 51.68 Min. For 10OYr Retum Period:a=372.07,b=24.39 Pwt - 1,19 In. Pvo-i= 177 in. Pam= 2.00 in. 2.95 in. Pmtao= 3.63 in. Pima= 5.44 in. Vv2L�..ant=� 14010.31 Cu.Ft Vr,c i 2094038 Cu.Ft _. VPY 1e ons=. 72819.63 Cu.Ft Vc,c,� 33770,66 4D665.62 lcu.Ft Vr.iauca 60864.t0 lCu.Ft PREDEVELOPED CONDITIONS TIME OF CONCENTRATION(AREA A) STORAGE PROVIDED(STORMBRIXX DETENTION SYSTEM) DISTANCE - 1146.5 FEET STORAGE PROVIDED IN UNDERGROUND DETENTION SLOPE- 1.157 x STRUCTURAL AREA 84,859 FT, RUNOFF COEFFICIENT- 0.30 STORAGE VOLUME - 60,885 Fr To VOID AREA 93.877E TC 1.8(I.1-0.3)(1148.5)°/(1.157Y'M Tc - 48 MINUTES POSTDEVELOPED CONDITIONS TIME OF CONCENTRATION(DETENTION AREA) STAGE STORAGE TABLE DISTANCE OF LONGEST TRAVEL- 1148.5 FEET, WITH 910 OVER LAND STAGESTORAGE AND 23a.5 IN CONDUIT SLOPE- 1.15 % 100YEAR 25YEAR 10YEAR RUNOFF COEFFIECIENT- 0.50 STAGE(ft) 3.92 1.94 1.6 Ta - 1.B(1.1-C)(D)Al(S t/� +TIME IN CONDUIT Ta - 1.8(1.1-0.5)(910 /(1.15�'A + 58.4 FEET/ 2 FPS STORAGE(ft3) 59,623 28,049 24,377 Ta - 31.1 MINUTES + 0.47 MINUTES -31.57 MINUTES DISCHARGE(cfs) 13.01 4.34 1.22 •NOTE AREAS B-0 ARE SUB AREAS OF ENTIRE DETENTION AREA FOR PURPOSE OF CITY OF FORT WORTH DETENTION STORAGE CHART. DETENTION AREA HAS A COMPOSITE C OF 0.5 AND A Ta OF 31.57 MINUTES STORE NO.: 872 NAME: EXHIBIT B REVISION: TITLE: DATE: 08/31/2020 DRAWN BY: CMA z � III - iill � `-' �■ I I•� I�tClf 1{l 9 •••. . . ��iCItC{ICI ■ •-' iriwfi-111 ''1!i 1111�INCIfi ... . �� ��ICIICIICI � Il�limit ,1= 0000, I#{IICEiw a0 1 • • • n /iilCliw ■ + K Isms —11 if I r IIItCIP111 `� w i�` limilziizi - It ��- ,j/CIICIECI 111 i��'u1_.■ss.�I.s���Ew�!!�o!i s�Ii1Ci/mill ��. f/�Iiwl/'■.61s11wUs11sIri.16rI1s11s1/a-t sl/I.flslts/1wl .1 IIL'.`{ICII;3M :: #I-Illwfl IE�II.9.:U-IIPII IPIi! it 11., s s s .■ s s s s }�� <' IP���II�tIC1I�{i�IIiCIIICii:p11C1IC�G:IICflla/COCi/C � '.moo IIIICii�11C/ICIfCII:'Ii►'[rCI1C1!CfrCltClfCi1C1ECIICl1� — ® ,/CIfC11CI1C/ICIfDfICIICIiC{/CiICfIC1iC11CfICt�-1/Cl /IICIiCI1CI1C11CtiC11CIf;:11C11CIiC1EC C_' — r_ tl rf�llwi/wl �; �'►sllslrslfCllCflCiIslICItC1ICirs il'il 1/-/1�{I� �s/Ir s s s s 11/i�11Ci10EtCliCIIC{fCttCtICIiC/i;:EICl/CIfCIICIfCrll �� •s II:IiCE1C1fC1rC11ClICIICUCIICItCIrCrIC1121/CII12 IF .+ t w s s11s1/CrPItCIP11w1/-IIwIPIt"' 'r�"• ttlfs11s1iiw s s s s s w s s rs1� .i��� r� w w s w ..[ w w s w w w w w.a •� w = isD:_11s{i<.iL..�-nwlrwinwn.l6.nw1/�.ri���1/ I criilw� • ' ! /11/I:IL'�!1{CIICIIC/ICII::O:7iC�IfCE1C1<ICIE::I/CIICl/CIII 7'�1�'��,��+►`����i���� /'��� �!['•lily/E�[[ :[[ [[�I1�11�[E!G141i'•[[�[�lliGi�[�1 1� • • ` ' \ �i/lrR=,i:/s��/_fIC//^a■ee.u!i.�sz_•..�r----ul[Cl/CIICI •� • • f i OICi{Cll ICirl�ll::iECIfCIfClld ■C � i - - ( �' . 1 •-' �. >>,_•_ 11 — — 1. ..� i� N'Ilwff�ll�Owi[�it Q� � ,• .•. 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L0 O L O Lo O N N — O O I� o w t\ 3 "J 0- O O Ln m N a � w o (D @ 0 o cc:: U -r O W W O Z + O N Nm m wow I U i Co � O f � + O C.� m m p :EW LL w O N O o Q O co cn + To C uwo NpZ CD Lu CD S ' U m � i O Q + co + O 0 e L0 O � O + O Q STORE NO.: 872 NAME: EXHIBIT B REVISION: TITLE: DATE: 08/31/2020 SECTION A-A DRAWN BY: CMA 735 SECTION B-B PROFILE 735 730 730 725 725 NEVI GRA E 720 f 720 GROUND 715 - 715 710 705 705 PROPOSED STORMBRIX DETENTION ASSEMBLY 700 700 695 695 -0+50 0+00 0+50 1 +00 1 +50 30 15 0 30 60 STORE NO.: 872 NAME: EXHIBIT B REVISION: TITLE: DATE: 08/31/2020 SECTION B-B DRAWN BY: CMA 1 1 1 `• 1 'r • re i I � r►i>� r f � � _ � 6 i I'M min Ili 21 ■ •�"rCIfC/it •••. ZItC1ICi .. 11CrICI r� ollmolm liiir Itr i � _ jIt11ClICi1 Mal ll,.l11 Hall � cr ' U C ,■rI11 111 ` 1211 1 I mClimm MH11* llititl=lll itiFICIII-r 1211211mII�i1lilil iii 1=11=11 oil ti ti it ilCtl .,_i��. �IIIC11■ a • t llttit;at...�..ItClii111iI 1i91Cli.EILCNilIli/iitL1U . iI fICI4i ll„ItCP=:a�11E9r4�tPIU�tIC�.O11C1i�a1�CIftC mill 1 �• � «b I ��ItilPlliil�tl9iilPllCliiliitf9PAP/i�liCilir - ' i i i i S i .• i i i i i i i i 1: ' IICrtC11C11CiI�iiCrlaffClPNCtrCIIC#iCi1CIICiICIII /� ��tlCll�IlCit=rlCtiClPliCnCiiCiiCit;alCrtCliCitCi �iiCllCrlCitC1AC1l,'wwAA� i i C i C C C i C Iriiiirl Uill lr 11 Iriii i11 ,;� CiL'�iCli�iCifCtICIiCIICl�iPllCirClICi1=11C1iD� �� t!i �1i"�i .i�*.�i1CtllClr=i[1 ��ll�iihl�=i � Jl itCi 1 tIi) {/Iti�1lE.tillliliii(liii,..i6lirillsliillifiClii � /Ilt RaiICIIlCIICIPii.ai:�ililllCtl f_�If:aiCllCrtC/! � �� ' f i i . .! i i >• i . tit i t i i—�_ Ih .EIr�Ilil/iIl! IICIIImmIfCar�!lCIICIIIii!�Irial�rl�llClPliCir;:i �► � III "�iC�liC IlClrDl�""CI�C•E�Nr r� i1D: =OZ '' I: It !/:Iloff�11=11C1iCf iitClhi.'. !IC C .a C i it iliirC Ur l CUM- ilia'!; , • !"IPiliEI9I IICIIir x' i i ...a .. i i i i i i a11C11111mr.lt=l i 1-M11:I/CIImilCllCrll f `iCll�ih:�liCti ' • IICi1ClICrfC11C11CrIC. �� ltrCitE' iitlCiiCAh ICtl�t�I/CIrC/taiCiiClrCir�til F • f,s��.7i`.s�iiiss miiii.r�� mum fsLZ !, STORE NO.: 872 NAME: EXHIBIT B mHaVARI DATE: 08/31/2124, LANDSCAPE QT DRAWN Exhibit C ACO StormBrixx° Detention Inspection and Maintenance Guide ACO StormBrixx° open cell structure permits completely free access for CCTV and jetting equipment to inspect all levels and areas of the system. Underground stormwater detention and infiltration systems must be inspected and maintained on a regular basis for purposes of performance and longevity. Inspection is the key to effective maintenance of Stormbrixx detention systems and is easily performed. ACO recommends, annual inspections.The rate at which the system collects pollutants will depend more on site specific activities rather than the size or configuration of the system. Inspections should be performed more often in equipment wash-down areas, in climates where sanding and/or salting operations take place, and in other various instances in which one would expect higher accumulations of sediment or abrasive/corrosive conditions. A record of each inspection is to be maintained for the life of the system. ACO StormBrixx° detention systems should be cleaned when an inspection reveals accumulated sediment or trash is clogging the discharge outlet. Accumulated sediment and trash can typically be evacuated through the access chamber over the outlet. If maintenance is not performed as recommended, sediment and trash may accumulate in front of the outlet. Access covers should be securely seated following cleaning activities. ACO suggests that all systems be designed with an access/inspection chamber situated at or near the inlet and the outlet. Should it be necessary to get inside the system to perform maintenance activities, all appropriate precautions regarding confined space entry and OSHA regulations should be followed. Maintaining an underground detention or infiltration system is easiest when there is no flow entering the system. For this reason, it is a good idea to schedule the cleanout during dry weather. Exhibit D STORMWATER FACILITY INSPECTION/MAINTENANCE FIELD FORM Facility Type: Facility Location(name): Inspection Date: Inspected By(Name): (position) Organization: Condition Maintenance Item Comment Good Marginal Poor N/A General Inspection Access to the site is adequately maintained for inspection and maintenance. Contributing drainage area is clean (trash, debris,grass clippings, etc. removed). Inlet and outlet pipes are clean;stormwater can enter and exit the practice without being blocked. Overflow structure is in good condition and clean. Maintenance is being performed according to manufacturer's guidelines. Maintenance is being performed according to the maintenance plan. Water is going through structure (i.e. no evidence of water going around the structure). Structure seems to be working properly. No settling around the structure. Comment on overall condition of structure. Results Overall condition of Proprietary System: Additional Comments Notes: ' If a specific maintenance item was not checked, please check N/A and explain why in the appropriate comment box.