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HomeMy WebLinkAboutContract 49153 CrrY SECRETARY�/ DOE # CONTRACT N0, 2 pM AM r 2� -4 STORMWATER FACILITY coMAINTENANCE AGREEMENT v d THIS AGREEMENT, made and entered into this day of JI4 by and between Foxfire Management LLC, acting by and through Gregory C. Fox and Lynda J. Fox , 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 1.45 acre tract located in the J. H. Conwell Survey, Abstract No. 343, Tarrant County, Texas according to the deed recorded in, Instrument No. D216205907 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 PIanJSubdivision Plan known as Fox Gymnasium 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 WHEREAS, the City requires that on-site Stormwater Management Facilities ("Facility") as shown on the Plan be constructed and adequately maintained by the OFFICIAL RECORD STORMWATER FACILITY MAINTENANCE AGREEMENT CITY SECRETARY Rev.12/29/2014 FT.WORT o TX 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. 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 STORMWATER FACILITY MAINTENANCE AGREEMENT 2 Rev.12/29/2014 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. E. This Agreement imposes no liability of any kind whatsoever on the City. THE LANDOWNER AGREES TO HOLD THE CITY HARMLESS FROM ANY LIABILITY IN THE EVENT THE FACILITY FAILS TO OPERATE PROPERLY. LANDOWNER COVENANT AND AGREE AND DOES HEREBY INDEMNIFY,HOLD HARMLESS AND DEFEND STORMWATER FACILITY MAINTENANCE AGREEMENT 3 Rev.12/29/2014 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. [SIGNATURE PAGE FOLLOWS] STORMWATER FACILITY MAINTENANCE AGREEMENT 4 Rev.12/29/2014 Executed this -7 day of t1, 2011. Landowner City of Fort Worth 7,C Name: Gr ry C. � ox Jegus Assistant City Manager Title: Approved as to Form and Legality Al & �q- Name. Lyndaox_ Assistant City Attorney aN Title: My/2-� Fo,44/k-MOLLC ST 1ty Secretary FORr�L �rJ OFFICIAL RECORD CITY SECRETAIRY FT.WORTH,TX STORMWATER FACILITY MAINTENANCE AGREEMENT CJ Rev.12/29/2014 STATE OF TEXAS § COUNTY OF TARRANT § �Aahistrument was acknowledged before me on �� ` �'� by Assistant City Manager of the City of Fort Worth, on behalf of the City of Fort Worth. H nUw i i PUA4�, _. MARIA S SANCHEZ Notark Public, State of Texas My Ccrnmission Expires December 19, 2017 STATE OF TSE § COUNTY OF § Before me, the undersigned authority on this f day of , 20 r7, personally appeared Gregory C. Fox known to me to be the person whose name is subscribed to the foregoing instrument and acknowledged to me that the same is the act of ry\a n p F it �, e,n j LL(- , and that he executed the same as its fir.6- and as the ct of such and for the purposes and consideration expressed in the foregoing instrument. ♦o""'w, LAUREN RACHELLE REED o`P m Notary Public,State of Texas 4 �-I A� Ex iros 11-10 2020 -�•;�.�e comm. p tary Publ State of Texa lei Notary Notary 10 130892408" STATE OF TEJ § COUNTY O1 § _Before me, the undersigned authority on this day of r L`I , 2017, personally appeared Lynda J. Fox known to me to be the person whose name is subscribed to the foregoing instrument and acknowledged to me that the same is the act of C�l�d FO/,6 1N c',�,joMeA i t L 6 , and that he executed the same as its ,N _ and as thV act of such c and for the purposes and considers ion expressed in the foregoing instru ment. l E)/ LAUREN RACHELLE REED Notary Pub • , State of T s Notary Public,State of Texas Comm.Expires 11-10-2020 Notary Ip 13Q892408 7M ;=i=; i;; STORMWATER FACILITY MAINTENANCE AGREEMENT 6 Rev.12/29/2014 EXHIBIT "A" INSERT LEGAL DESCRIPTION DESCRIPTION OF PRIVATE DETENTION POND EASEMENT SITUATED in the City of Fort Worth, Tarrant County, Texas, and being a tract of land in the J. H. CONWELL SURVEY, Abstract No. 343, and being a portion of that certain tract conveyed to Foxfire Management, LLC, by deed filed under County Clerk File No. D216205907, and said portion being more fully described as follows: BEGINNING at a 1/2" iron rod found in place for the most easterly northeast corner of said Foxfire Management tract, said point being an "L" corner in Lot 1, Block 1, International Harvest Addition, as shown on plat thereof recorded under Clerk's File No. D214269453; THENCE South 0 degrees, 26 minutes, 05 seconds West with the east line of said Foxfire Management tract and the most easterly west line of said Lot 1, 179.90 feet; THENCE North 89 degrees, 33 minutes, 55 seconds West, leaving said east and most easterly west line, 19.0 feet to an angle point; THENCE 64 degrees, 36 minutes, 08 seconds West, 53.23 feet to an angle point; THENCE North 0 degrees, 15 minutes, 50 seconds East, 61.30 feet to a corner; THENCE North 89 degrees, 44 minutes, 10 seconds West, 121.70 feet to a corner; THENCE North 0 degrees, 15 minutes, 50 seconds East 95.90 feet to a 1/2" iron rod found in place for the most westerly southwest corner of said Lot 1 and an "L" corner in said Foxfire Management tract; THENCE South 89 degrees, 44 minutes, 45 seconds East with the most easterly north line of said Foxfire Management tract and the most northerly south line of said Lot 1, 189.43 feet to the PLACE OF BEGINNING, and containing 0.5340 acre (23,260 square feet). STORMWATER FACILITY MAINTENANCE AGREEMENT 7 Rev.12/29/2014 EXHIBIT "B" _ PRIVATE DRAINAGE EASEMENT .IN THE J. H. CON-WELL SURVEY, ABSTRACT NO. 343, CITY OF FORT FORTH, TARRANT COMTE,, TEXAS, bEIN4 A PORTION OFA TW4J OF L4.NU C.0,N'iFYEC TO =:)XFIRF ►1. NACGEMEN I, LLC AS CIESCRIBEr- IN COUNIY Cl r-RK'S D0CQP-N7 1)71620590 , DEED RECCRP3 OF -ARRANT COUNT". ►sirs L+r n rrz+s c�oPon.+xrrzu W, D4'1bP19111d FID P.k i:C Y. ,i y7 BEGIN �,i D191 CRR:TIO rl h t I12`1. R. t W. n J, Vi L R. ?ML• {4CNTRCL WOE.) r,t i C5 r __ "DRAWGE FASE14ENT ((FOS OCTLNIION POND r 0�0 z y 0•S34+F N1 +.cr.£ . I .f 4 1,3"' iV +-i r ^et r9 Y N C�J'15' C" E E 1.3O' d ts (4 +V � co _,! w N m H) N W Y33'59' %V ^+ 19.Uti' n�U mpaso LOO 11 Am=1 M FW ACAW 1- Cc eNO. Uctltt2.'I14w r.WtA 1845" CORD PWPa=ED J */N• I.R. 5F 5 PHO'tiFLAI :.?PPEo _. Ea R.O.A. D? 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GurUe, lt1 ILS Fort Ylorth, -fcxnt 76147 -1408 [oaaa lt4iAotlon No. 1640;W/7 STORMWATER FACILITY MAINTENANCE AGREEMENT 8 Rev.12/29/2014 11, ae Sz Oor aogB B"£imeo Bo-"o° us-c `- -5v��4`4 - = �8F xa e es oe i °aE� o� x°-E& o oe�oma m Bay$;€ ^a a - st ooy o>mmo="� 'C vi o € B8@ . o mm an°YMu�o SPF oPfE D O,.-n a ^` U1 m 80= 8 g"S�mma o m n ng E% - �Lmo=a`ov�r. Y 8% Y>F e�`mf x�4 E�Baa=� L, O � Lim 5� E a� 666 Euu`«-a€^% .`' O`u _ '}vc N $y`ms� &n L =sap��%go ages€ 1i! a°^gym`°m a 2� �oF�ny� �gm. n m€fir° nva° smE'B;; J V d•dm� omYiEca. , 8'•o.-a I a� e' f-i o•-cam°Ec= °% 8h z m� Q Oo� $58;8�a c� - "o has as%e', EOFa£�XUM. E oav,: «m _ a naz sa"�•� os �_R ass SU lo"j m C5 O�UCa= oQo a- v Fay E :E. t LL$a=�aeY E'oo6�` 3e6 �aeo sa%- LL J m So€��jg,Ep 'te aaPa` a 8�a• 9 S% 3cE moa v'e j- y. 9`-3• 8eEg3x p C C Qra°Ka@ d 5#a ofl noo��ea gog8m my ovs o`�E°B oY woog y mB a_ - 'm&e die ° r xee" `«r e0.E' Bcn3e .taF _�e` egg. §= a`�LL m !! 9pm8s3yoQ os �=o�= aB�`P•-83 S'6$BS SEEe emsa�S� ; �EL:.�e`m EBgB «o�m ve9= Fj 59=Y'A r I a'?a C�o��aAam aE o>3•`°•�_°°E c�6� � .g°% �oVE�« a ogeoe B; @esV€ `fie. 5 dr—M <.Bg?Ie'9g ab.bpjR Utl UP I 8288 3' SY(Ifi• y'&f'J I mw d 6 I XP220 d0 MILL I B p s u g w NZ N14F mF I I �wa� ti �Wo I � ��•Qbd p C9/8826I88 'OK :708 '0;9 o NOLLI88!'SSBdXYH YYKOIdYX'J9.LA7 `" 18,7078 'l,LOT LLf off�=`e,I ,68"96£M.90,9eA S ° 11 = o offi F lb ORA to � ail z � a � a d• m bill,56'66 ,58'86£3°OS,StA N �� z a� �RNW EXHIBIT "B" DESIGN CALCULATIONS (1 OF 2) Runoff Calculations PRE-DEVELOPMENT Drainage Area C C'Ca C'Ca Tc 1-Yr I 5-Yr I 100 Yr I 1-yr Q 5-yr Q 100-Yr Q Area/Pt ac 100-Yr 500-Yr min in/hr) (m/hr) (m/hr) (cfs) (cfs) (cfs OS-1 1.70 0.30 0.3 0.3 15 3.32 4.86 7.98 1.69 2.48 4.07 A 7.40 0.30 0.3 0.3 15 3.32 4.86 7.98 7.37 10.79 17.71 OS-1+A 9.10 0.30 0.3 0.3 15 3.32 4.86 7.98 9.06 13.27 21.77 B 1.42 0.30 0.3 0.3 1 15 3.32 4.86 7.98 1.41 2.07 1 3.40 OS-1+A+B 10.52 0.30 0.3 0.3 15 3.32 4.86 7.98 10.46 15.34 25.17 OS-4 4.71 0.88 0.88 0.88 10 4.06 5.74 9.24 1 16.83 23.79 38.32 OS-1+A+B+OS4 15.23 0.48 0.48 0.48 15 3.32a48 7.98 2427 35.53 58.31 C 1.45 0.42 0.42 0.42 15 3.327.96 2.02 2.96 4.86 OS-3 0.39 0.45 0.45 0.45 15 3.327.98 0.58 0.65 1.40 Runoff Calculations PROPOSED WITHOUT DETENTION Drainage Area C C`Ca C`Ca Tc 1-Yr I 5-Yr I 100-Yr I 1-Yr Q 5-Yr Q 100-Yr Q Area/Pt ac 100-Yr 500 Yr min in/hr in/hr (in/hr) cfs) (cfs) (cfs OS-1 1.70 0.3 0.3 0.3 15 3.32 4.66 7.98 1.69 2.48 4.07 A 7.33 0.3 0.3 0.3 15 3.32 4.86 7.98 7.30 10.69 17.54 OS-1+A 9.03 0.30 0.3 0.3 15 3.32 4.86 7.98 8.99 13.17 21.61 B 1.49 0.660 0.66 1 0.66 10 4.06 5.74 9.24 3.99 1 5.64 9.09 OS-1+A+B 10.52 0.35 0.35 0.35 15 3.32 4.86 7.96 12.22 17.89 29.37 OS-4 4.71 0.88 0.88 0.88 10 1 4.06 5.74 9.24 16.83 23.79 38.32 OS-1+A+B+OS-4 1 15.23 0.51 0.51 0.51 15 3.32 1 4.86 7.98 25.78 37.75 61.95 C 1.45 0.42 0.42 0.42 15 3.32 4.86 7.98 2.02 2.96 4.86 OS-3 0.39 0.45 0.45 0.45 15 3.32 4.86 7.98 0.58 0.85 1.40 Runoff Calculations PROPOSED WITH DETENTION Drainage Area C C'Ca C*Ca Tc 1-Yr I 5-Yr 1 100-Yr I 1-Yr Q 5-Yr Q 100-Yr Q Area/Pt ac 100-Yr 500 Yr min inlhr in/hr) (mlhr) cfs cfs cfs OS-1 1.70 0.3 0.3 0.3 15 3.32 4.86 7.98 1.69 2.48 4.07 A 7.33 0.3 0.3 0.3 15 3.32 4.86 7.98 7.30 10.69 17.54 OS-1+A 9.03 0.30 0.3 0.3 15 3.32 4.86 7.98 8.99 13.17 21.61 B 1.49 0.245 0.25 1 0.25 1 10 4.06 5.74 9.24 1.51 2.14 1 3.37 OS-1+A+B 10.52 0.29 0.29 0.29 15 3.32 4.86 7.98 1 10.13 14.83 24.33 OS-4 4.71 0.88 0.88 0.88 10 4.06 5.74 9.24 16.83 23.79 38.32 OS-1+A+B+OS4 15.23 0.47 0.47 0.47 15 3.32 4.86 7.98 23.76 34.79 57.09 C 1.45 0.42 0.42 0.42 15 3.32 4.86 7.98 2.02 2.96 4.86 OS-3 0.39 0.45 0.45 0.45 15 3.32 4.86 7.98 0.58 0.85 1.40 Rainfall data(intensity in in/hr was taken from the iSWM Tarrant County rainfall table_ Required Dention Storage Volumes by 1SWM Equations 1.1-26,27,28a,and.28b Frequency a b C A Qa Tc Td Vprelimmary P180 Ptd Vmax Vmax (acres) (CIS) (min) (min) (1113) Qn) (I n) (ft13) (-4t) 1-Year 95.835 13.425 0.66 1.49 1.48 10.00 27.87 2,100 1.77 1.07 3,400 0.08 5-Year 170.81 19.435 0.66 1.49 217 10.00 35.39 3,500 295 1.81 5,600 0.13 100-Year 322.07 24.388 1 0.66 1.49 3.57 10.00 41.42 6,400 5.44 3.32 10,400 0.24 STORMWATER FACILITY MAINTENANCE AGREEMENT 10 Rev.12/2912014 EXHIBIT "B" DESIGN CALCULATIONS (2 OF 2) Actual Detention Storage Volumes Allowed Required Storage Tail Water Water Actual Actual Q/ Actual Actual S/ Freq. Discharge Surface Discharge(Q) Allowed Q Storage(S) Required S cfs ac-ft) (ft^3) (elev eley cfs (ft-3) 1-Year 1.48 0.08 3,400 0.00 794.40 1.48 100% 6,587 1941° 5-Year 2.17 0.13 5,600 0.00 794.52 2.17 100% 7,791 139% 100-Year 3.57 024 10,400 0.00 794.71 3.57 100% 10,400 100°J° 1 The required storage is met or exceeded at the elevation that produced the maximum allowable discharge. Pond Orifice Outlet Pond Weir Outlet Emergency Spillway Outlet Rawlinew/6' 795.5 U/S Flow Line 792.91 U/S Flow Line 79425 U/S Flow Line 794.71 Freeboard Diameter of Pipe in 6.00 Width P 2.50 Width P 5.00 Required Q 9.09 Discharge Coef. C 0.6 Weir Coefficient Co 3.1 Weir Coefficient Co 3.1 Allowable Q 10.88 -CA(2gh)o_s (1,Ne, C.Pdi.s Qweo-=C°Pdi_s `SO flfK? Stage-Volurne-Discharge Rating Table Elevation Storage Pipe Pipe Velocity Weir Weir Total Area(ft") Storage(ft') Discharge Discharge Velocity Discharge (ft} (aft) (cfs) (fps} (cfs) (fps) (cfs) 792.91 0 0 0.00 0.00 400 0 0 0.00 793.00 270 12 0.00 0.28 1.44 0 0 0.28 793.50 2,456 694 0.02 0.48 2.44 0 0 0.48 794.00 6,467 2,925 0.07 0.82 4.19 0 0 0.82 794.25 7,524 4,674 0.11 0.95 4.83 0 0 0.95 794.50 11,901 7,102 0.16 1.06 5.40 0.95 3.04 2.01 794.71 12,835 9,356 0.21 1.14 5.83 2.39 7.648 3.57 795.00 15,500 13 952 0.32 1.25 6.38 5 16 6.25 Culvert Calculations Culvert Description Flow Quantity Culvert Length Flowline Allowable Outlet Headwater Description U stream Downstream Depth Headwater Velocity (Entrance Type) Size cfs Yr ft ft ft Depth fps Culvert 1 Headwall 4.86 1 18" 40 795.7 795.5 797.05 797.2 4J S,A✓, STORMWATER FACILITY MAINTENANCE AGREEMENT 11 Rev.12/29/2014 EXHIBIT "B" SCHEMATIC PLAN - PLAN VIEW 9UFFER SETBACK - r��s - - -- '" - - - ' - 9 9 BW = 794.31 J�796- b ;797: TW = 796.00 f TW = 96.00 TW = 796.00 TW = 796.00 BW = 94.71 BW = 794.46 BW = 795.00 / j r j9� PRIVATE DRAINAGE ' tri A ! EASEMENT I A LNa � 0 20 40 60 793.61 - - - BW = GRAPHIC SCALE: 1" = 30'- TW = 796.00 / B 6>9 = 797.50 I 3�� = 797.00 = 797.89 TW = 796.50 = 797.39 / BW = 794.72 TW = 796.50 TW = 796.50 TW = 794.50 I ! .793 BW = 796.38 BW-= 795.18 _- C BW = 794.50 A 4F 797,121 T/C = 795.14 1 T/C = 794.50. I BW = 792.90 796.62 i / CUT = 794-64 GUT = 794.00; � TW = 796.00 -2.13% /794.5 1.00;a -1. 07 793.6 I X9 797,00 T/C = 794,30 ?J 16 (792,9), I 9 796.5b + I UT = 793.80 FL = 79286'. Z� 797.Ot1/ /o T/ = 794.20. 796 `i 10 ILT = 793.70 u ` 794.2 793.5793.4' fL = 792.80 196.0 (794.7) I (793.2)1 (792,9) � FL = 792.66 r -(7927),$ (IP2,6) B 9sJ TW = 796.00T ��� TW = 796.00 TW = 796-00 r'��s BW = 795.02 BW = 793.19 BPI = 792_$3 J STORMWATER FACILITY MAINTENANCE AGREEMENT 12 Rev.12/29/2014 EXHIBIT "B" SCHEMATIC PLAN — CROSS-SECTIONS A & B 800 800 I I 1 796 _�a-' " - 796 _! _ - I J- - - - I °a W=M 792 -t=- -_ err UNE - _ - 792 I ( r�o�mY ME 790 0+00 0+50 1+001+15 CROSS-SECTION A-A 800 800 I I aao�ns�c�ouNo t ,w- m I oAFAW ow I 796 I F` ' " 796 FL M71 FIL 7"1 I ( I r PK FL I - 792 792 I ' t urs „ a+o�nnr u� 790 0+00 0+50 1+00 1+50 CROSS-SECTION B-B 5,/V s'1/,7//7 STORMWATER FACILITY MAINTENANCE AGREEMENT 13 Rev.12/29/2014 EXHIBIT "B" SCHEMATIC PLAN - CROSS-SECTION C 800 800 I I 4 PROPOOkD ORd�O I i M I � 796 1 ao—T FM796 FL i 7971 I �o aVuo 792 i - l__- _ - = 792 Maw uw FIIOPMLK--/ 790 0+00 0+50 1+00 CROSS-SECTION C-C STORMWATER FACILITY MAINTENANCE AGREEMENT 14 Rev.12/29/2014 EXHIBIT "B" SCHEMATIC PLAN - DETENTION OUTFALL DETAIL ONE ROCK WALL TYPICAL ELEVATION = 796.00 5' MERGENCY WEIR FL = 794.71 EMERGENCY OVERFLOW WATER ELEVATION = 795.27 71/ 100 YEAR WATER ELEVATION = 794.71 00 WEIR FL = 794.25 �a 4D 2.50' C:� as ociclo IDD � � aaaa oa as as [Doo �: a a aaaa 6" THICK 2' X 5' " PVC ORIFICE TYPE A CONCRETE PAD FL = 792.91 DETENTION OUTFALL ELEVATION sa af��a STORMWATER FACILITY MAINTENANCE AGREEMENT 15 Rev.12/29/2014 a..w.e,. �....,.,. NOMOV S3103tl XOzi 3++n in�eY�sao 0 4f2 X16 9 aNlb3]xNN]•sI mools I 1101 .1 • is ���L� W'.otl94M=YH'ObM1B YYI IIJVNY ADXO=1 011'1N3"A0VNVW 3HIAIXOd NV1d 3dVOSONY1 �n•so a Y � .4N•�!:i R 'r I 4 I\ --- is� - •:�•Y a ► d =:> <• r B� ass .c g ¢ g x -_ ,.t••• $��� � ', , sensssit s fzs�33344Yt� a5i II V- 1 I II a — - -- • -_s-6E f®!. •t _ - --_------------- ---- -------- _ _ a ems - - EX. 2d'W --- -_- - -- [x%a�n -- -- --- — — -- ------------- CROMWELL-MARINE CREEK. RD — - — - - — — - — -------- STORMWATER FACILITY MAINTENANCE AGREEMENT 16 Rev.12/29/2014 Exhibit "C" CITY OF FORT WORTH STORMWATER FACILITY OPERATION AND MAINTENANCE PLAN The only responsibility the City of Fort Worth has in the operation and maintenance of this Facility is inspection. General Maintenance Procedures The structural and functional integrity of the Facility shall be maintained at all times by removing and preventing drainage interference, obstructions, blockages, or other adverse effects into, through, or out of the system. Periodic silt removal shall occur when standing water conditions occur or the pond's storage volume is reduced by more than 10%. Silt shall be removed and the pond/basin returned to original lines and grades shown on the approved engineering plans. In addition, corrective measures are required any time a basin does not drain completely within 72 hours of cessation of inflow. NO STANDING WATER IS ALLOWED in basins designed for dry detention purposes. Accumulated litter, sediment, and debris shall be removed every 6 months or as necessary to maintain proper operation of the basin. Disposal shall be in accordance with federal, state and local regulations. Detention facilities shall be mowed monthly between the months of April and October or anytime vegetation exceeds 12-inches in height. To prevent debris from entering and clogging the downstream storm sewer system a wire mesh screen or similar screening device shall be installed over the outlet until final acceptance. 4. PREVENTIVE MAINTENANCE/INSPECTION • Visual inspections of all components will be conducted every 6 months. • A log shall be kept of maintenance actions, and inspections. The log should document the condition of the detention system's primary components, mowing, and silt, litter and debris removal dates. Document aeration of the basin bottoms and replanting to prevent the sealing of the basin bottom. • Written maintenance and repair records shall be maintained by the party or parties signing the attached Agreement and shall be provided to the City upon request. STORMWATER FACILITY MAINTENANCE AGREEMENT 17 Rev.12/29/2014 Exhibit "D" Stormwater Structural Maintenance CHECKLIST FREQUENT REPAIRS REPAIRS INSPECTION DATE REQUIRED MADE NOTES Mowing Inspect irrigation system operation Remove grass clippings Violations Noted MINOR INSPECTION Condition of Pond Amount of silt in pond Amount of ponded water Amount of wetland vegetation Location of Erosion Percent of vegetation Location of Erosion MAJOR INSPECTIONS Structure type and Condition Condition of Rip- Rap Condition of filtrations stem Berm or Embankment Settlement Location of erosion Evidence of Animals Evidence of Aquatic life STORMWATER FACILITY MAINTENANCE AGREEMENT 18 Rev.1212912014 fa� i 3E Q tE`o � C F a) C a) a) > Q a) N is U Ctf C u) Z u, E >' ui m z O _ .1 ZO E o U) U) U) U) U) U) w U) U) (1) (n U) U) (n C: _ � c c c C c C c C c c c c c C cn p F— L a) m a) m m a) m 0 m m a) a) m a) m Z E E E E E E E E E E E E E E E E E E E E E E E E E E E E E E Q O O 0 0 0 0 0 0 0 0 0 0 0 0 0 U U U U U U U U U U U U U U U E I I ( I I ( I I I I ( I I I I Lu L- 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 - J L z z z z z z z z z z z z z z z a. 0 (n) wI 0I NI NI (nI mi wI wI cnI oI wI w) co a) a) a) a) a) a) 0 a) a) a) m m m a) a) a) C: U- _x LL oy V a � °' °' N a CO C: fl -0 O L- o co -0 0 W ai U) a`) a) — cn Z o C o L a ) V m m Fu Cl. 0 E O a) n c� Z U C`' E cn O a) CL j O �, ( O _� ca > 0 0 4- a) F— m > cn o �`' O c W i C U :3 0 Q- C_ CO 0U) to >, 0 Q) C Q) _ L C a) Y 4" Z n to '� U U c O E U1 I Q) U) •Q C,. -0 O O C3 Ca a) O i i 0 � � E o f = m a) 0 _ L E c -0 > C C 0 c6 U) `) a) C a) a) E a) C L a) a) O CO U C 00 C CQ tli +- i ,G '— wU,� 0 Q 0 O LE a) a (n O 'L L W i Q O E 0 a) Q) d C U 0 O (Q 0 mQaco U C O O O n NU) > m L- W E M �0 0 0 0 M0 ui ( O Fw- E -a c N nQ n fn c N O 70 N 0) . 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