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HomeMy WebLinkAboutContract 53669 CITY SECRETARY COIffRAC i NO._5a[01P01 DOE # 1.0 STORMWATER FACILITY �'` MAINTENANCE AGREEMENT -�L� C.�1 a oyo THIS AGREEMENT, made and entered into this dayof , b and between Fort Worth Independent School District, acting by and through , 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 28.92 acre tract, and located in the John B. York Survey, Abstract No. 1754, Tarrant County, Texas according to the Official Public 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 AMON CARTER RIVERSIDE HIGH SCHOOL 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 CO SECRTARY Rev.1 111 7/20 1 6 � WORTH,g 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 "AY' ("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.11/17/2016 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 obheation 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. 5. 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.1 111 712 01 6 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.1111712016 Executed this ,_ _day o 20, Landowner City of Fork Worth Name: ssistant ity Manager Title e Approved as to Form and Legality c' � /e :�- Assistant City Atkorn y ATTTEST �. ity Secre EOFFOICIALECO D ETARY STORMWATERFACILITYMAlNTENANCEAGREEMENT i, T Rev.1111772016 Executed this day of 20_. Landowner City of Fort Worth Name: C.Arx'le- O(rk e R- ' Assistant City Manager Title: Approved as to Form and Legality Assistant City Attorney ATTEST City Secretary E L RECORD ECPTAR; Tt. TOR -, X STORMWATER FACILITY MAINTENANCE AGREEMENT CJ Rev.1 111 7/2 0 1 6 STATE OF TEXAS § COUNTY OF TARRANT § This instrument was acknowledged before me on by thg,__� Assistant City Manager of the City of Fort W6rt , on behalf of the City of Fort Worm. MARIAS.SANCHEZ ,; •' My Notary I0#2256490 NY 'Y. Expires December 13,2D21 No ary Public, State of Texas STATE OF TEXAS § COUNTY OF TARRANT § Before me, the undersigned authority on this day of anA 20-710 personally appeared C Urr►S known to me to be the person whose name is subscribed to the foregoing instrument and acknowledged to me that tl P same is the act of fjje-k Worth lv A A Snob anti tlia he executed the same as its CWQ� or-C Leand as the act of such ACA d for the purposes and consideration expressed in the foregoing instrument. 1� Not Public, State V Tex s ANA KARINA EZ MY CQMMi551014 EXPIRES n� JANUARY 31,2021 NOTARY ID:1309t38289 orFICIA1 RECORD CITY SECRETARY act WORTH, TX STORMWATER FACILITY MAINTENANCE AGREEMENT Rev.11/17/2016 Contract Compliance Manager By signing I acknowledge that I am the person responsible for the monitoring and administration of this contract, including ensuring all perfo ce and reporting requirements. 411". Z,� (a)rie Lew4/ Development Services Manager OFFICIAL RECORD lwir!SECRETARY EXHIBIT "fie" DRAINAGE EASEMENT Part of Lot 1, Block 20-R, Sylvan Heights John B. York Survey, Abstract No. 1754 City of Fort Worth, Tarrant County, Texas DESCRIPTION, of a 12,690 square foot (0.291 acre) tract of land situated in the John B. York Survey, Abstract No. 1754, Tarrant County, Texas; said tract being part of Lot 1, Block 20-R, Sylvan Heights, an addition to the City of Fort Worth according to the plat recorded in Cabinet A, Slide 7286 of the Plat Records of Tarrant County, Texas; said tract also being part of that tract of land described in deed to Fort Worth Independent School District recorded in Volume 1227, Page 457 of the Deed Records of Tarrant County,Texas; said 12,690 square foot tract being more particularly described as follows (bearing system for this survey is based on the Texas State Plane Coordinate System- NAD 83, North Central Zone 4202, based on observations made on October 3, 2018 with a combined scale factor of 1.00012): COMMENCING, at a point at the intersection of the west right-of-way line of Gwynne Street (a 60-foot wide right-of-way) and the north right-of-way line of Yucca Avenue (a 80-foot wide right-of-way); said point also being the southeast corner of said Lot 1; from said point a "+" cut in concrete found bears South 05 degrees, 23 minutes, 01 seconds East, a distance of 5.04 feet; THENCE, North 00 degrees, 28 minutes, 39 seconds West, along the west line said Gwynne Street, a distance of 311.93 feet to a point;from said point a "+" cut in concrete found bears North 00 degrees, 28 minutes, 39 seconds West, a distance of 314.13 feet; THENCE, South 89 degrees, 31 minutes, 21 seconds West, departing the said west line of Gwynne Street, a distance of 82.50 feet to the POINT OF BEGINNING, THENCE, South 00 degrees, 28 minutes, 39 seconds East, a distance of 94.00 feet to a point for corner; THENCE, South 89 degrees, 31 minutes, 21 seconds West, a distance of 135.00 feet to a point for corner; THENCE, North 00 degrees, 28 minutes, 39 seconds West, a distance of 94.00 feet to a point for corner; THENCE, North 89 degrees, 31 minutes, 21 seconds East, a distance of 135.00 feet to the POINT OF BEGINNING; CONTAINING: 12,690 square feet or 0.291 acres of land, more or less. (A survey plat of even survey date herewith accompanies this description.) The undersigned, Registered Professional Land Surveyor, hereby certifies that the foregoing description accurately sets out the metes and bounds of the tract described. r _ OF Kul Daniel Date r; Registered Professional Land Surveyor No. 6534 PAUL DANIEL i. .....,•.........,.. Pacheco Koch Consulting Engineers, Inc. t. 6534 4060 Bryant Irvin Road, Fort Worth TX 76109 (817) 412-7155 S U R TX Reg. Surveying Firm LS-10008001 3580-18,412EX2.doc; 3580-18.412EX2.dwg DRI PAGE 1 OF 2 LEGEND �a �+B4� �WH ' — - --- PROPERTY LINE 97 ^-� EASEMENT LINE • `�^^�— PROPOSED LINE f� 0 POINT FOR CORNER LOT 1, BLOCK 20—R CUT IN (UNLESS OTHERWISE NOTED) SYLVAN HEIGHTS CONCRETE FOUND (C.M.) - CONTROLLING MONUMENT (CAB. A, SL. 7286) XF - "+ CUT IN CONCRETE FOUND P.O.B.- POINT OF BEGINNING FORT WORTH INDEPENDENT SCHOOL DISTRICTL!P �o C- POINT OF COMMENCING (VOL. 1227, PG. 457) -_ - 3 DRAINAGE EASEMENT CO,I 12,690 SF pl (0.291 ACRES) N 89*31#21" E 135.00' s 89.3i'21". w _ 82,50' Y CIO o / N � o Ld co r J 0000 00 o ® ; J l / 0 1 cli w / ° j / `�// r Q I S 89'31'21" W 135.007 fn 0 U r w ('F" CUT IN ■Cs CONCRETE FOUND ' BEARS 5 05'23'01' W, 5.04') (C.M.) U 0 20- 40 80 YUCr- A VENUE i W GRAPHIC SCALE IN FEET (80—F-00r WIDE R.O.W.) M I NOTES: The undersigned, Registered Professional Land 1. A metes and bounds description of even Surveyor, hereby certifies that this plot of OF survey date herewith accompanies this plat survey accurately sets out the metes and t .••••�•.�,� of survey. bounds of the easement tract described. y� G15T&,Q��'�yyt r 2. Bearing system for this survey is based on • PAU ...DANIEL•• the Texas State Plane Coordinate System - N ••,•......•.........,.. NAD 83, North Central Zone 4202, based on f3 �� 6534 ;".* observations made on October 3, 2018 with aul anie pateav"o a combined scale factor of 1.0001 2. o Registered Professional Land Surveyor No. 6534 DRAINAGE ZZ ZZ o FORT 7 ROAD EASEMENT' Pacheco Koch WORTH, FORT WORTH, TX 6109 817.412.7155 TX REG. ENGINEERING FIRM F-469 PART OF LOT 1, BLOCK 20—R SYLVAN HEIGHTS TX REG. SURVEYING FIRM L5-10008001 JOHN 13. YORK SURVEY, ABSTRACT NO. 1754 z DRAWN eY CHECKED BY SCALE DATE Joe NUMBER CITY OF FORT WORTH, TARRANT COUNTY, TEXAS a DRI PMD 1"-40' JL1LY 2019 3580-18.412 PAGE 2 OF 2 DWG FILE: 3580-18.412EX2.DWG EXHIBIT "A" ACCESS EASEMENT Part of Lot 1, Block 20-R, Sylvan Heights John B. York Survey, Abstract No. 1754 City of Fort Worth, Tarrant County, Texas DESCRIPTION, of a 1,650 square foot (0.038 acre) tract of land situated in the John B. York Survey, Abstract No. 1754, Tarrant County, Texas; said tract being part of Lot 1, Block 20-R, Sylvan Heights, an addition to the City of Fort Worth according to the plat recorded in Cabinet A, Slide 7286 of the Plat Records of Tarrant County, Texas; said tract also being part of that tract of land described in deed to Fort Worth Independent School District recorded in Volume 1227, Page 457 of the Deed Records of Tarrant County, Texas; said 1,650 square foot tract being more particularly described as follows (bearing system for this survey is based on the Texas State Plane Coordinate System-NAD 83, North Central Zone 4202, based on observations made on October 3, 2018 with a combined scale factor of 1.00012): COMMENCING, at a point at the intersection of the west right-of-way line of Gwynne Street (a 60400t wide right-of-way) and the north right-of-way line of Yucca Avenue (an 80-foot wide right-of-way); said point also being the southeast corner of said Lot 1; from said point a "+° out in concrete found bears South 05 degrees, 23 minutes, 01 seconds East, a distance of 5.04 feet; THENCE, North 00 degrees, 28 minutes, 39 seconds West, along the west line of said Gwynne Street, a distance of 291.93 feet to the POINT OF BEGINNING; THENCE, South 89 degrees, 31 minutes, 21 seconds West, departing the said west line of Gwynne Street, a distance of 82.50 feet to a point for corner; WHENCE, North 00 degrees, 28 minutes, 39 seconds West, a distance of 20.00 feet to a point for corner; THENCE, North 89 degrees, 31 minutes, 21 seconds East, a distance of 82.50 feet to a point for corner in the said west line of Gwynne Street; from said point a"+"out in concrete found bears North 00 degrees, 28 minutes, 39 seconds West, a distance of 314.13 feet; THENCE, South 00 degrees, 28 minutes, 39 seconds East, along the said west line of Gwynne Street, a distance of 20.00 Feet to the POINT OF BEGINNING; CONTAINING: 1,650 square feet or 0.038 acres of land, more or less. (A survey plat of even survey date herewith accompanies this description.) The undersigned, Registered Professional Land Surveyor, hereby certifies that the foregoing description accurately sets out the metes and bounds of the tract described. OF Paul Dniel `- Date PAUL DANIEL Registered Professional Land Surveyor No. 6534 •.6534 �..�� • Pacheco Koch Consulting Engineers, Inc. ::yo 4060 Bryant Irvin Road, Fort Worth TX 76109 (817)412-7155 TX Reg. Surveying Firm LS-10008001 3580-18,412EX1.doc; 3580-18.412EX1.dwg DR] PAGE 1 OF 2 LEGEND — - - PROPERTY LINE �� Q --- -- EASEMENT LINE PROPOSED LINE 0 POINT FOR CORNER (UNLESS OTHERWISE NOTED) (C.M.) — CONTROLLING MONUMENT XF _ CUT IN CONCRETE FOUND "+" CUT IN O 20 40 80 CONCRETE FOUND (C.M.)P.O.B.—POINT OF BEGINNING P&0°Co POINT OF COMMENCING GRAPHIC SCALE IN FEET -- r 3 BLOCK 24 ACCESS °;I SYLVAN HEIGHTS EASEMENT N (VOL. 1043, PG. 20) 1,650 SF QI (0.038 ACRES) O — — -- — N 89"31'21" I; 82.50' N 00'28'39" W S 00'28'39" E PRIMROSE 20,00' 20.00' A VENUE S 89'31'21" W 82.50' I LOT 1, BLOCK 20—R � W SYLVAN HEIGHTS N (CAB. A, SL. 7286) W d FORT WORTH INDEPENDENT 1 X SCHOOL DISTRICT "as � BLOCK 23 (VOL, 1227, PG. 457) 00 SYLVAN HEIGHTS (VOL. 1043, PG. 20) c z r] U CUT IN P O.C. � CONCRETE FOUND � 6A BEARS S 05'23'01' W, 5.04) ca YUCCA AVENUE (80—FOOT WIDE R.0.W.) i a, �? NOJES: The Undersigned, Registered Professional Land 1. A metes and bounds description of even Surveyor, hereby certifies that this plat of OF survey date herewith accompanies this plat survey accurately sets out the metes and t' ,••..•.. . of survey. bounds of the easement tract described. ¢ �,sTRFofiger Y • 2. Bearing system for this survey is based on • """" the Texas State Plane Coordinate System — •� • PAUL DANIEL 10 ,••....•. NAD 83, North Central Zone 4202, based on M y� o "� �q `�. 6534 .Q .Q observations made on October 3, 2018 with ESS10l�'; L7 a combined scale factor of 1.00012. aul auniel Date �'('•• R4� o Registered Professional N Land Surveyor No. 6534 ACCESS 0 4060 BRYANT IRAN ROAD EASEMENT Pacheco Koch FORT WORTH, TX 76109 817.412.7155 TX REG. ENGINEERING FIRM F-469 PART OF LOT 1, BLOCK 20—R SYLVAN HEIGHTS TX REG. SURVEYING FIRM LS-10008001 JOHN B. YORK SURVEY, ABSTRACT NO. 1754 J Z DRAWN BY CNfCKEO BY SCALE DATE J08 NUMBER CITY OF FORT WORTH, TARRANT COUNTY, TEXAS DRI PMD 1"=40' JULY 2019 1 3580-18.412 PAGE 2 OF 2 DWG FILE: 3580--18.412EX1.DWG EXISTING GROUND 4 . PROPOSED 54" STORM DRAIN Q 1 25'-6„ PROPOSED 36"co PROPOSED 66" In OUTFACE UNDERGROUND DETENTION SYSTEM s @ 0.30% 0 M U J U N SECTION A—A no 91 a ul m AMON CARTER RIVERSIDE a 8100 WESTERN PLACE, SUITE 1001 DETENTION POND 0 Pacheco Koch FORT WORTH, TX 78107 817-412.7155 N TX REG. ENGINEERING FIRM F-469 LOCATED IN FORT WORTH otl ` TX REG. SURVEYING FIRM L.5-10008001 AND BEING OUT OF THE J DRAWN BY CHECKED BY SCALE DATE ✓OB Nu�regR JDHN B. YORK SURVEY, ABSTRACT NO. 1754, TARRANT COUNTY, TEXAS ca, PAC TSR NTS 07/22/2019 3580-18.412 a z EXISTING GROUND 4Q - - 110000 0000 4 . 68'-6" PROPOSED 66" Ln UNDERGROUND DETENTION SYSTEM 0 Q 0.30% ca M O N 0 U J U N SECTION B-B 0 no Lo 0 a a AMON CARTER RIVERSIDE a 6100 WESTERN PLACE, SUITE 1001 DETENTION POND Pacheco Koch FORT WORTH, TX 76107 817.412.7155 cNv TX REG. ENGINEERING FIRM F--469 LOCATED IN FORT WORTH a o TX REG. SURVEYING FIRM LS--10008001 AND BEING OUT OF THE J DRAWN BY CHECKED BY SCALE DATE JOB NUMBER JOHN B. YORK SURVEY, ABSTRACT NO. 1754, TARRANT COUNTY, TEXAS a PAC TSR NTS 07/22/2019 3580-18.412 -STA 0+00.0 LfNE "ST-4" ---------- ------ A {� CONNECT TO PROPOSED --- --- DETENTION POND. REF. --------- ----- - SHEET C04-01.3 FL 54" = 562.00 (S) — f — -- — PROPOSED UNDERGR0UNQ-- -------- I DETENTION POND (30,138 CF) STA 10+47.94 LINE "ST-1" CONNECT TO PROPOSED DETENTION POND. REF. SHEET C04-01.3 I ; FL 66" = 561.44 (S) N FL 36" = 561.44 (N) CLI to 0 N DRAINAGE EASEMENT J_ J U 3 O N O no Ln r'] I I U 3 d 0 10 20 40 GRAPHIC SCALE IN FEET IL AMON CARTER RIVERSIDE 6110 WESTERN PLACE, SUET ,00, DETENTION POND FORT WORTH, TX 76107 617.4127155 Pacheco Koch Tx REc. ENGINEERING F1RM F-469 LOCATED IN FORT WORTH TX REC. SURVEYfNC FIRM LS-10008001 AND BEING OUT OF THE JOHN B. YORK SURVEY, ABSTRACT NO. 1754, DRAWN BY CHECKED 8Y SCALE DATE JOB NUHBER TARRANT COUNTY, TEXAS a PAC TSR 1"-20' 07/22/2019 3580-18.412 IEKHO a Obi " o O" 012712 ]YM C hL LCUL&TMS MODIFIED RAPONAL iVi THCJ Existing Runoff Coefficient I o-D-1 RunnfF rnrffirirnt II Area a•ro� Araa I d•ro� rme of Concetration I Min rirne of ConcetFatian 1 Year Runoff tt,it rsc IYPar RIl9off m4. ." 5Year Runoff __f4gA rFc 5ygar Runoff ap, rFc 100YeaT Runoff 1}.3} rFc 1COYeat Runoff [I.ti M 4,.rxr- 13.41 jCF5 Table 5,15 Far l Yr Retum Period:a�.8217,b-43.653,d=a ORIFICE SIZE CALCULATIONS 19.64 ICFS Tarrant County Fors Yr Return Perlod:e�.8142,b=7L154,d=12 0 - CA 2gh q,smYr 3Z23 ICPS Rainfall Oat, For10OYr Return Period;e-0.779%b-110.202,d-14 C = 0.70 (entrance coefficient) A = AREA ORIFICE OPENING (sq ft) Tas= 18.65 !Min. For lYr Return Period:a=95.84 b=13.43 -I Fble1.18 g = 32.2 ft/sec Tas= 23.14 IMin. For5Yr8etumPeriod:a=170.81,b=19.44h = 1.51' (depth of water) infali Factors Talor 26.73 ;Min. For 100YrReturn Period:a=322.07,b=24.39 AREA ORIFICE OPENING = 4.66 sq ft -- -- - MAX 0 THRU ORIFICE = 32.19 cfs P,xr= 0.91 in. PyRP t= 1.77 in. din. Psass=` 2.95 in. Peasaa- 2.73 Iln. Ps 5.44 in. V_1l.q, 4787.08 ICu.Ft V.-= 7U++i Cu.Fr W.I4nlra ry,= 713713.64 Cu.Ft Vm-= MIMED ru.Ft VParmn.'r - 14797,76 Icu.Ft VM..soa= 236mm �Cu.Ft v Pu<xAR�r .sm c I' i I N � I Do � a i L N PIS[NAR4F V.SFPRASF p N � STAGE - STORAGE- DISCHARGE TABLE j STAGE STORAGE FEET)VOLUIVE DISCHARGE OUT O (CUBIC FEET) (CFS) m u1 5 61.a7 G G r1 / 5 582.47 13.73 3743 n 563.47 19.41 9902 C9 564.47 23.78 16811 -- 565.47 27.46 23480 O 3 566.47 30.711 28775 588.97 32.19 30138 Q 00 a AMON CARTER RIVERSIDE 0 6100 WESTERN PLACE, SUITE 1001 DETENTION POND Pacheco Koch FORT WORTH, TX 76107 817.412.7155 TX REG. ENGINEERING FIRM F-469 LOCATED IN FORT WORTH a TX REG. SURVEYING FIRM LS-10006001 AND BEING OUT OF THE J DRAWYV BY CHECKED BY SCALE GATE JOB NUMBER JOHN B. YORK SURVEY, ABSTRACT N0. 1754, TARRANT COUNTY, TEXAS U PAC TSR NTS 07/22/2019 3580-18.412 a [EM a F ' o od' F&WO O PL&H 5" PARKING LOT PAVING El 0 a N M cO 1 O 1 N f fn rq O N W O Ln Ln N] r'f I 3 O 0 15 30 60 GRAPHIC SCALE IN FEET CD AMON CARTER RIVERSIDE O fi100 WESTERN PLACE, SUITE 1001 DETENTION POND Pacheco K4 FOR WORTH, TX 76147 617.412.7155 TX REG. ENGINEERING FIRM F-469 LOCATED IN FORT WORTH C� IV o TX REG. SURVEYING FIRM LS-10008001 AND BEING OUT OF THE J DRA6YIV BY I CHECKED BY SCALE GATE J08 NUMBER JOHN B. YORK SURVEY, ABSTRACT NO. 1754, TARRANT COUNTY, TEXAS PAC TSR 1"=30' 07/22/2019 3580-18.412 a 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. STORMWATFR FACILITY MAINTENANCE AGREEMENT 8 Rev.11/17/2016 Cipw- NT CH' ENGINEERED LUTI I Inspection & Maintenance Guide for Corrugated Steel Pipe Underground Detention Systems Safety: Before entering into any storm sewer or underground detention system check to make sure all OSHA and local safety regulations and guidelines are observed during the maintenance process. Hard hats, safety glasses, steel-toed boots and any other appropriate personal protective equipment shall be worn at all times. Frequency: Inspections shall be completed annually. Inspection Check List: Check quality of parking lot surface. • Is there evidence of potholes or sinkholes? ® Is there evidence of an unusual amount of silt and soil build-up on the surface? Check for pipe symmetry(uniform curvature). • Flexible steel pipe is designed to handle minor deflections. Pipe structures deflected more than 7% from design shape, or those that show localized distortions may require further investigation. Check for pipe Point quality. • Is there evidence of backfiil material infiltrating into the pipe structure? Check for proper operation of outlet structure. ® Is the outlet drainpipe clogged? • In dry conditions, has the system drained to the elevation of the lowest outlet pipe. Silt Deposition • If accumulated silt is interfering with the operation of the detention system (i.e.: blocking outlet pipe or if silt deposition has significantly reduced the storage capacity of the system) it should be removed. This can be accomplished by the use of a "clam shell' device or vactor truck. Maintenance: Underground storm water detention and retention systems should be inspected at regular intervals and maintained when necessary to ensure optimum performance. The rate at which the system collects pollutants will depend more heavily on site activities than the size or configuration of the system. Inspection Inspection is the key to effective maintenance and is easily performed. CONTECH recommends ongoing quarterly inspections of the accumulated sediment. Sediment deposition and transport may vary from year to year and quarterly inspections will help insure that systems are cleaned out at the appropriate time. Inspections should be performed more often in the winter months in climates where sanding operations may lead to rapid accumulations,or in equipment washdown areas. It is very useful to keep a record of each inspection. A sample inspection log is included for your use. Systems should be cleaned when inspection reveals that accumulated sediment or trash is clogging the discharge orifice. CONTECH suggests that all systems be designed with an access/inspection manhole situated at or near the inlet and the outlet orifice. 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. Cleaning Maintaining an underground detention or retention 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. Accumulated sediment and trash can typically be evacuated through the manhole over the outlet orifice. If maintenance is not performed as recommended, sediment and trash may accumulate in front of the outlet orifice. Manhole covers should be securely seated following cleaning activities. Inspection Maintenance Log: fib " Diameter System Location: Anyw,here, USA Date Depth of Accumulated Maintenance Maintenance Comments Sediment Trash Performed Personnel /99 2" None removed 6- juhn%un ]installed Sadiment — - Removed Swept 031011i)a i" Sorr1e Sediment and 5, Johnson parking lot Trash 06/01/00 0" None [done 09/01/QD 0'+ Heavy Removed Trash S. FUley 17/D1/00 1" Torte Removed S. Rlley SedJrnent 4/01/01. X More Norse S. Riley Removed ACE 04/15/01 2" Some Sediment aml Environrrtenwl Trash Services Inspection&Maintenance Log: 66" Diameter System Location. Date Depth of Accumulated Maintenance Maintenance Comments Sediment Trash Performed Personnel _ I 4 Cn .P W N (Jj CO M V M M4�6 GJ N 3 91 � C) � CJ1 to C'l D v, v, D D D v, D D O m cn o -a O o (/) ® CD CD `J "a (D 3 3 <D (D m 77 rn m (D ® ® Z b ® <� O m m m m m O C!J m rn Cn 0 C CD CDD W m m � m m � m h � � Z CD ©•: m •C n * = 0 'C v m a m m O O OL � o �' O = ® CD o n m m o n n m a cr N 3 7 � ¢j 3 G h O m m m 3 O CD N '� N ro 3 con O O (Q O O CA O m' Q 7 `y m w OO O O p 0tr Enm ((DD w cn_ CO CA 'c m m m m M •J W cn o o m 117�1 CD n N Q 7 3 J CD m (O CD Cn O m C� CD <2 CD m 3 0 0 n O C2 CD 07 CD N J OL m m CD -'+ O rnW« '� O p `� --n O2 C O• &CD CO E O O CD = cn J C u�i CD m Q 3 CD J V s W — CD 0 CD •J C (:D) Q O : m _ CD CD Cr m s CD O m w O n `C Q 0 J J m J m M cr - ®p J (D O O -n 0 0 0 = Q J X. `ri CD X CD m m m m m m m CD m m m m m m I o to (n m (n m m m cn m m m m m m lllll Illlfifl II Q z z z z z z z z z z z z z z z �` r, O O O O O O O O O O O O O O O o - m lillf iflfilll li 3 m O O O O O O O O O O O O O O O CD 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 c� Z 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 m m m m m m m m m m m m m CD CD I co (if M :3 :3 M M n n D D D D D D D m c > :3 m � CD z ;u CD CD m 70 C m m m CD ' C N Exhibit "0" Stormwater Structural Maintenance CHECKLIST FREQUENT REPAIRS REPAIRS INSPECTION ®ATE REQUIRE® MADE NOTES Mowing Remove Trash and debris Inspect irrigation system operation Remove grass clippings Violations Noted MINOR T INSPECTION Condition of Pond Amount of silt in and Amount of silt in flume Amount of ponded water Amount of wetland vegetation Location of Erosion Percent of vegetation Condition of trash guard Location of Erosion MAJOR -- INSPECTIONS Condition of Stormwater Quality Structure Type of Stormwater Quality Structure Structure type and Condition Condition of Rip- Rap STORMWATER FACILITY MAINTENANCE AGREEMENT 9 Rev.1111712016 Condition of filtrations stem Berm or Embankment Settlement Location of erosion Evidence of Animals Evidence of Aquatic life Condition of Aeration Foundation STORMWATER FACILITY MAINTENANCE AGREEMENT 10 Rev.1111712016 its sa 811 02!0 3v vc sE 4 d '-s4 O -m+ r y z m Z •€�i'g � i u, D D v v m G m mR11 0 go m rA mm 6)m s4�5 n `00 a y� N rDw xw A Q m p m< z r� �m m A o w � 1p7 - m o � c n � A �S y �O Go W I I .3'• m m m m m m m m m ❑ � o m� $ •. � G1 4'1 P P P P P Gf Gf Gf v o ^' a �z m P P P P P P G1 G1 GI G1 .3 9-3 m �08 m p O C.) - - - - - - - - - - Z2�m� f C z f° 7 m=w II G♦ Ll Q G) GI 0 GI GI P P 1 �NooNo � � w w n rn rn I 'n G1 41 G1 L] G1 P P GI 41 Z � v w Cn � A y' m O 00 ° I m I W I I a m Z C CD Zl Z O ❑ rnYT-mAvz $WbD o nw RISER cra?�Ccw Oar'r�F� � A•! 24'6 RISER Cl 24'O RIS RISER A7 fl1 �ny��z Ao �mmN m mmy C m m O�o mzzaA m� O O �a9omN��z SN z Am zo O m~m 0 y p C m Ap 0 m Z i.0mq$a� WnzAmo m —I Cl co �ovs � ao��MA r X v"C2am mAOoz cn �acmm- m�m, Z O -i mmo•+o Or m imcz n � nOz,Omo2nza Po m rznw zNAm pvOd a� m x-n �ma c oxmo �n in w V QF, plc za p- Cs im �a 6i m e m C O m7o��bo nzyam m A P '-'a m il7 N m d] om. - a�zF Nm m m m rn m c � m 'mDN r p Cn m m zmyNQo Pmoz Ill '� C= zo z a m�a -1 X W Z p~�filZ Z 11y W '�- Z C 1l 4 a z z❑mo m �N D a -� m 1 0 m � "a NQ z�c➢iA-°i�° vmi Km m o a o o v � .Z] (7a _®w� opmCz o oD a � A A m z 0 m m O z• Z m w m� Z � r�3 v ❑ ❑ ❑ a �m v � ym Ol p z A Dy T Z D 7 pr Ica D j m Z n 8 z m zg' lz m cxDip� w II.7 PJPE 0 I�+---PIPE R r r 1'-o'MIN. n m �a gms n z r 0 0 rvA� `0 a mm� A ff � bm� Z m oox `J azzo v �mn Io n zoz "a r Z W T V T K T T s K z PIPE EMBEEMEkT ZIAO- Ay -D1 rZ Wwcaj c A 9?O m T2.mmZ mmm� �O C imt WY OW Eo mma� Y l7 CC2 O vNa nC ��ZC pp M 6) _� my m2 mb ❑M, 2 Gl -3L] C :'VAS NN-3 PI Z bNro� ZX yfil qT. 730ro x O ti L'0, O zi 'm �pCA C Y O �yNyra z� �x gp�yp mom = m a m D v$om y A 0 nZAC F yO mw pZ-m 2 D m wm� Z d,aON Owzm 2 Z N � � N �� � N � � ♦ -� n�a° m D m„so o� °� �p mN�'N F cb v_ 003z33 np m z "'y T _ o 0 00 pyOZ mZ z vmy'*I V= �A �Q iX3Gm�� _ .=0m0 Dp �� R. 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