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HomeMy WebLinkAboutContract 55700Date Received: 05/12/2021 Time Received: 8�57 am City Secretary Number: 55700 STORMWATER FACILITY MAINTENANCE AGREEMENT THIS AGREEMENT, made and entered into this 7th day of MaY , 2021 , by and between Starlight Homes Texas, LLC, acting by and through Daniel Satsky, 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 49 acre tract located in the A.S. Roberts Survey, Abstract 1262, Tarrant County, Texas according to the deed recorded in D220280544, 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 Ranch at Duck Creek, Phase 1, 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 STORMWATER FACILITY MAINTENANCE AGREEMENT Rev. 11 /17/2016 OFFICIAL RECORD CITY SECRETARY FT. WORTH, TX 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 obli�ation 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. 11 /17/2016 [SIGNATURE PAGE FOLLOWS] Executed this 7th day of May 20 21 CITY: i°��i :,�,,i,"!, i � Dana Burghdoff, Asst. City Manager City of Fort Worth Date: 5/7/21 Approved as to Form and Legality: �'���:�t� � .L��� ��� ChristaRLopez-Reynolds�May7,20 10: T) c Christa Reynolds, Sr. Asst. City Attorney City Attorney's Office Date: 5/7/2021 ATTEST: f� k:c�c�Cr% P. �rr�z�'e� or Ronald P. Gon�ales (May 7, 70T 15:14 CDT) �4����� �� ,oaq" FORT a p � �a00000000� �� o � 0 � ��o °��d� �Vo °=iJ � ° d � � a o° * � �� °O�0000°°� b ��� nEX ASaaa Mary Kayser, City Secretary City Secretary's Office Date: 5/7/2021 STORMWATER FACILITY MAINTENANCE AGREEMENT Rev. 11 /17/2016 LANDOWNER: Sta lig t Ho s Homes, LC Daniel Satsky, VP of Land Acquisition & Development 4/26/2021 Date: Contract Compliance Manager: By signing I acknowledge that I am the person responsible for the monitoring and administration of this contract, including ensuring all performance and reporting requirements. T�nie sc�rle�f Mo��les Janlc Scarlctt Moralcs (May 4, 20211426 CDT) Janie S. Morales, Planning Manager Development Services Date: 5/4/2021 OFFICIAL RECORD CITY SECRETARY FT. WORTH, TX STATE OF TEXAS COUNTY OF TARRANT § § This instrument was acknowledged before me on May 7, 2021 by Dana Burghdoff, Assistant City Manager of the City of Fort Worth, on behalf of the City of Fort Worth. JENNIFER L. EZERNACK Notary Public STATE OF TEXAS Notary I.D. 130561630 My Comm. Exp. Mar. 1, 2024 STATE OF TEXAS COUNTY OF TARRANT § § Jennifer L Ezernack Digitally signed by Jennifer L Ezernack Date: 2021.05.07 14:17:26 ·0S'00' Adobe Acrobat version: 2021.001.201 so ------------------Notary Public, State of Texas /l Before me, the undersigned authority frrl.L . 5:ii:J:.. 2GJ./. �teJc � y on this c%, <J/17 personally day of appeared , known -------------------------------to me to be the person whose name is subscribed to the foregoing instrument and that the same is the act of LLC,__ d that he executed the same as its ...... -4,11..-....!µ...::;�a._...!,_e.;""L!'---'-"'=--1-'"""'-'=-=�---"===---i�- _.IL..I.,. ____ and for the purposes and consideration expressed in the foregoing instrument. SHERRI A TAYLOR Notary Public, State ofTexas Comm. Expires 06-03-2024 Notary ID S21215-6 STORMWATER FACILITY MAINTENANCE AGREEMENT Rev. 11/17/2016 No� 6 ���'���� � CIVIL ENGINEERS � PLANNERS � SURVEYORS �������� � . .■ • � LEGAL DESCRIPTION FOR DRAINAGE EASEMENT All that certain lot, tract, or parcel of land, situated in a portion of the A. S. Roberts Survey, Abstract No. 1262, City of Fort Worth, Tarrant County, Texas, being part of that certain called 86.314 acre tract described in a deed to TFCC Coburn LLC recorded in Instrument No. D220280544 of the Deed Records of Tarrant County, Texas (DRTCT), and being more completely described as follows, to-wit: COMMENCING at a 3/4" iron rod found for the Northeast corner of said 86.314 acre tract, the Southwest corner of Boswell Meadows, Phase 1 recorded in Cabinet A, Slide 10870 of the Plat Records of Tarrant County, Texas (PRTCT), in the West line of Quarter Horse Estates recorded in Instrument No. D219221530 (PRTCT), being in the recognized East line of said Roberts Survey and the recognized West line of the I. & G. N. RR. Co. Survey, Abstract No. 834, from which a 1/2" capped iron rod found stamped "GOODWIN & MARSHALL" for the Northwest corner of said 86.314 acre tract bears South 89 deg. 40 min. 25 sec. West - 1878.62 feet; THENCE South 24 deg. 37 min. 25 sec. West departing said lines, a distance of 1,262.67 feet to the TRUE POINT OF BEGINNING; THENCE South 00 deg. 41 min. 45 sec. East, a distance of 355.00 feet; THENCE North 89 deg. 18 min. 15 sec. East, a distance of 1 10.00 feet; THENCE South 00 deg. 41 min. 45 sec. East, a distance of 90.00 feet to a Point of Curvature of a circular curve to the right, having a radius of 325.00 feet, a central angle of 07 deg. O6 min. 15 sec., and being subtended by a chord which bears South 02 deg. 51 min. 22 sec. West - 40.27 feet; THENCE in a southerly direction along said curve to the right, a distance of 40.30 feet; THENCE South O6 deg. 24 min. 30 sec. West tangent to said curve, a distance of 1 18.15 feet to a Point of Curvature of a circular curve to the left, having a radius of 425.00 feet, a central angle of O1 deg. O6 min. 23 sec., and being subtended by a chord which bears South 05 deg. 51 min. 18 sec. West - 8.21 feet; E:\10874 Starlight Homes - Boaz Road\COGO\GM EASEMENTS\DRAINAGE EASEMENTS\10874-DE3.dwg �C�QQQ � �o� � TEXAS • 2405 Mustang Drive • Grapevine, TX 16051 • 811329.4313 • TxSury firm #10021700 TENNESSEE • 6014 Apple Tree Drive • Memphis, TN 38115 • 901.881.9188 ARIZONA • 2105 South Alma School Road, Suite 2• Chandler, AZ 85286 • 602.218.1285 COLORADO • 8400 E. Prentice Ave. • Greenwood Village, CO 801 I I• 303.459.4861 ���'���� � CIVIL ENGINEERS � PLANNERS � SURVEYORS �������� � THENCE in a southerly direction along said curve to the left, a distance of 8.21 feet to a Point of Curvature of a non-tangent circular curve to the left, having a radius of 50.00 feet, a central angle of 103 deg. 45 min. 38 sec., and being subtended by a chord which bears South 28 deg. 35 min. 45 sec. West - 78.67 feet; THENCE in a southwesterly direction along said curve to the left, a distance of 90.55 feet; THENCE North 90 deg. 00 min. 00 sec. West non-tangent to said curve, a distance of 223.44 feet; THENCE North 55 deg. 32 min. 37 sec. West, a distance of 1 17.01 feet; THENCE North 00 deg. O6 min. 52 sec. East, a distance of 604.20 feet; THENCE North 86 deg. 38 min. 16 sec. East, a distance of 107.20 feet; THENCE North 89 deg. 18 min. 15 sec. East, a distance of 150.00 feet to the POINT OF BEGINNING, containing 204,467 square feet or 4.694 acres of land, more or less. Bearings are referenced to Texas State Plane Coordinate System, North Central Zone (4202J, North American Datum of 1983 as derived from GPS observation. Exhibit map attached and made a part hereof. � ��vr�F�� y'�� G",� �RFO S' � ..JOHN N. ROGERS.. � �;q� � 6372 P:: . ��� �'�ESS��?O�/ �� SURV� 4/22/2021 E:\10874 Starlight Homes - Boaz Road\COGO\GM EASEMENTS\DRAINAGE EASEMENTS\10874-DE3.dwg �C�QQQ � �� � TEXAS • 2405 Mustang Drive • Grapevine, TX 16051 • 811329.4313 • TxSury firm #10021700 TENNESSEE • 6014 Apple Tree Drive • Memphis, TN 38115 • 901.881.9188 ARIZONA • 2105 South Alma School Road, Suite 2• Chandler, AZ 85286 • 602.218.1285 COLORADO • 8400 E. Prentice Ave. • Greenwood Village, CO 801 I I• 303.459.4861 BOSWELL MEADOWS, I PHASEI REMAINDER Of CALLED BOSWELL MEADOWS, PHASEII caPR,rcrs�o I 225.01 ACRES, PARCEL l CAB. A, SL. 12713 � LORINALBERT BOSWELL, JR. �\ P.R.T.C.T. POINT OF VOL. 6868, PG. 2233 COMMENCING D.R.T.C.T. 3/4" I.R.F. — — S 89°40'25" W 1878.62' _I _ � I � 1/2" C.I.R.F. �� I � I "GOODWIN & MARSHALL" � \ I � � �e�yb� � vEY J _ _ J :� �`_ - ER�S ��R 62 ��.•�o3���CALLEDB .6 13 4ACRES _ Cl• s. R�B C'� l�U� 1 L6 S� INST. NO. D220280544 - PS�� L5 I D.R.T.C.T. _ A , II // W POINT OF � - BEGINNING DRAINAGE EASEMENT � � -� � I I �— 204, �f�7 SQ. 1��:/4.f�.94 AC. � O M � � � � CALLED 86.314 ACRES o j N I � � � TFCC COBURN, LLC `� � �� INST. NO. D220280544 �� �_ � � W I � D.R.T.C.T. N pG30OpOO�C�D \ \ I `-" J G3Q�1C�C� La� - \\ I o I nMC�G� C�G3C�C�C��a - \ \ o V pC�Q�C� � 0 200 \ \ Z � I �— \ \ �„� I i �— SCALE IN FEET \ \ // � I -- I � _� � � ry� CZ - � OLD OCEAN FUEL COMPANY �.� �� CJ 40' PIPELINE RIGHT-OF-WAY � N 9O°OO�OO�� W � VOL. 3424, PG. 559 � �� 223.44� D.R.T.C.T. UTILITY EASEMENT \ \\\ I VOL. 15077, PG. 40 \�� � — — — — _ — _ _ _ D.R.T.C.T. — — — J — — 10� UTILITY EASEMENT -��• $�AQ gEARINGS ARE REFERENCED TO VOL. 15058, PG. 555 TEXAS STATE PLANE COORDINATE SEE SHEET 4 D.R.T.C.T. �- r SYSTEM, NORTH CENTRAL ZONE (4202), NORTH AMERICAN FOR LINE TABLE DATUM OF 1983 AS DERIVED FROM GPS OBSERVATION. EXHIBIT "A" MAP SHOWING DRAINAGE EASEMENT, SITUATED IN A PORTION OF THE A.S. ROBERTS SURVEY, ABSTRACT NO. 1262 CITY OF FORT WORTH , TARRANT COUNTY, TEXAS ������� Q Job No.: 10874 Scale: 1"=200' Sheet �������� Z Drafted: J.A.V. Checked: J.N.R. � CIVIL ENGINEERS — PLANNERS — SURVEYORS Surveyed on the Ground: O1 /27/2020 Of 2405 Mustang Drive, Grapevine, Texas 76051 (817) 329 - 4373 TxEng Firm # F-2944 — TxSury Firm # 10021700 Date Prepared Revised 4/21/2021 � Revised: . 1� �P��,° ��x� g Q'�G��FR� . S' .. .......... °. . JOHN N. ROGERS .. .:A� • 6372 . P; � . . OFES S��� . ��H� SURV E� �� Date Signed: �/2a/2oz1 � � 0 _ � � � v 0 / w LINE TABLE LINE # BEARING DISTANCE L1 N89°18'15"E 110.00' L2 S00°41'45"E 90.00' L3 SO6°24'30"W 118.15' L4 N55°32'37"W 117.01' L5 N86°38' 16"E 107.20' Lb N89° 18' 15"E 150.00' CURVE TABLE CURVE # RADIUS ARC LENGTH DELTA ANGLE CHORD BEARING CHORD LENGTH C1 325.00' 40.30' 7°O6'15" S02°51'22"W 40.27' C2 425.00' 821' 1°O6'23" S05°51'18"W 8.21' C3 50.00' 90.55' 103°45'38" S28°35'45"W 78.67' BEARINGS ARE REFERENCED TO TEXAS STATE PLANE COORDINATE SYSTEM, NORTH CENTRAL ZONE (4202), NORTH AMERICAN DATUM OF 1983 AS DERIVED FROM GPS OBSERVATION. EXHIBIT "A" MAP SHOWING DRAINAGE EASEMENT, SITUATED IN A PORTION OF THE A.S. ROBERTS SURVEY, ABSTRACT NO. 1262 CITY OF FORT WORTH , TARRANT COUNTY, TEXAS ������� Q Job No.: 10874 Scale: N.T.S. Sheet �������� Z Drafted: J.A.V. Checked: J.N.R. a� CIVIL ENGINEERS — PLANNERS — SURVEYORS Surveyed on the Ground: O1 /27/2020 Of 2405 Mustang Drive, Grapevine, Texas 76051 (817) 329 - 4373 TxEng Firm # F-2944 — TxSury Firm # 10021700 Date Prepared 4/21/2021 Revised � Revised: . 1� �P��,° ��x� g Q'�G��FR� . S' .. .......... °. . JOHN N. ROGERS .. .:A� • 6372 . P; � . . OFES S��� . ��H� SURV E� �� Date Signed: �/2a/2oz1 � � 0 _ � � � v 0 / w � �' I `I` � � I� l�� � � � 11II /� I � I I �� �� I ` I I � I � � �I — ,�/ ► � �. �` � � � � � � � � � � � o �, � � � � I '� � � � � ( ,� " 1 � � � � � / I I ^ I� /% � �� �� � \ �� � � �� \ � � �� � ��/ �, � � _l I � - ��� � \ �� �� � � _-- � �� � �� � ��� � , '� � � � �� -� . ---_ ,�_. / � �� � vz=� Q Q U � ti � _ � Q ti Q U � � � � ti O � J ~ m ~ � � 0 � � � � � � � � � � � N � � <<< _ o U N O � m ,� s I O ^ � I � � � � Q ,� � - � � I J � �� � o � N � �I= � cv I Y � � �� '� � o I�m�' ��— `_� � \ / / \ �\ � � � z 0 - ��� Qw�� N U Lj \ "'���� � � N Q � � J � � O I e t�9L Z9L I ��! 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Stormwater runoff collected in the pool is treated through settling. In addition, the aquatic bench (fringe wetlands), safety bench, side slopes, and shallow areas of the pond include plants to aid in the filtration and infiltration of the stormwater runoff flowing through the practice. There are some common problems to be aware of when maintaining a stormwater pond. They include, but are not limited to, the following: • Sediment build-up • Clogging in the inlet and outlet structure • Establishing vegetation within the stormwater pond • Pruning and weeding to maintain appearance • Eutrophic conditions indicated by excessive algae growth or fish kills • Creating a mosquito habitat Routine inspection and maintenance should be performed on stormwater ponds to ensure that the structure is functioning properly. Note that during the first year the stormwater pond is built, maintenance may be required at a higher frequency to ensure the proper establishment of vegetation in the practice. For more information on vegetation in stormwater ponds, see Appendix D: Planting and Soil Guidance. In addition to routine maintenance, stormwater ponds have seasonal and intermittent maintenance requirements. During the winter months, the stormwater pond should be inspected after a snow event (this is specific to northern areas of Georgia) to make sure that the materials used to de-ice the surrounding areas stay out of the practice to avoid further pollution. In addition, planting material should be trimmed during the winter, when the plants are dormant. Inspect the stormwater pond after a large rainstorm. Keep drainage paths (both to and from the BMP) clean so that the water can properly flow into the stormwater pond. If the stormwater pond is not draining properly, check for clogging in the inflow and outflow structures. If the forebay or stormwater pond has received a significant amount of sediment over a period of time, then the sediment at the bottom of the forebay or pond may need to be removed. Accumulated sediment in the practice decreases the available storage volume and affects the pond's ability to function as it was designed. A sediment marker should be placed in the forebay to determine when sediment removal is required. It important to note that sediment excavated from stormwater ponds Operations & Maintenance Guidance Document that does not receive stormwater runoff from stormwater hotspots are typically not considered to be toxic and can be safely disposed through either land application or landfilling. Stormwater hotspots are areas that produce higher concentrations of inetals, hydrocarbons, or other pollutants than normally found in urban runoff. Examples of operations performed in potential stormwater hotspots include vehicle maintenance and repair, vehicle washing, landscaping/grounds care, and outdoor material and product storage. Check with the local development review authority to identify any additional constraints on the disposal of sediments excavated from stormwater ponds. Periodic mowing of the pond buffer is only required along maintenance right-of-way and the embankment. The remaining buffer can be managed as a meadow (mowing every other year) or a forest. In order to keep the water that exits the stormwater pond clean, fertilizers should be used sparingly during establishment. Once the vegetation in the practice has been established, fertlizers should not be used. While vegetation in the stormwater pond is important, the primary purpose of a stormwater pond is to act as a water quantity and quality device, and introducing fertilizers into the stormwater pond introduces nutrients such as phosphorus and nitrogen that can pollute downstream waters. In addition, stormwater ponds should already be nutrient rich environments that do not require fertilization. To control animal nuisances and invasive species, pesticides (including herbicides, fungicides, insecticides, or nematode control agents) should be used sparingly and only if necessary. Stormwater ponds create a challenge for controlling mosquitos, because some types of vegetation, such as cattails, can create an environment that allows mosquitoes to breed both in the pond and along the shoreline. Keeping the practice free of trash will help the practice from becoming a mosquito habitat. Another method to control mosquitoes is to place fish, such as the mosquitofish (Gambusia affinis), in the pond to help with controlling the mosquitoes. Animals such as dragonflies, diving beetles, birds, and bats may aid on controlling mosquitoes, however it is likely that additional measures, such as chemicals, may be required to control the mosquitoes (using chemicals should be a last resort). Keeping the pond at a depth of four feet or greater can aid in mosquito control by limiting vegetation growing around the pond. If mosquitoes begin to pose a problem, consult a qualified professional. Pond dam inspection and maintenance is also very important. The pond dam should be inspected for seepage and structural integrity. Look for saturated soil, sediment deposits, and flowing water at the base of an earthen dam and on the rear face of the dam. On concrete dams, look for seepage, cracks, leaks and rust stains, or bulges. If any signs of seepage are found, consult a Professional Engineer. Pests such as burrowing animals and fire ants can pose a major threat to dam safety. Fire ant tunnels and animal burrows can weaken the dam structure and create an undesired water pathway through the dam. In addition, tree roots are another source of potential damage and failure. Woody vegetation may not be planted on the embankment or allowed to grow within 15 feet of the toe of the embankment and 25 feet from the principal spillway structure. If you have a large dam that is subject to regulations by the state, other maintenance items may be required. Please consult a Professional Engineer for additional guidance. Operations & Maintenance Guidance Document Ponds can be an attractive nuisance, so security and safety should be taken into consideration. Fencing requirements are at the discretion of the local government. If security measures such as a fence and gate are present, ensure that they are functional and locked. It is important that the embankment for a pond be inspected regularly for trees and animal activity. Trees growing on the top or sides of the embankment should be removed. The roots of trees grow into the embankment and will weaken the structure of the embankment by creating passage ways that allow water to flow through the embankment. Trees that are blown over or damaged by storms can loosen or remove soil which weakens the strength of the embankment. In the same way animals can burrow holes weakening the structure of the embankment. These holes act as a passage way for the water to travel through the embankment, increasing the potential for the embankment to fail. Geese are attracted to open water, clean lines of sight, and grass. They can become a nuisance to stormwater ponds if they are causing damage to plants or the banks, or if they are `loading' the pond with nutrients and bacteria. Geese can be discouraged from using a stormwater pond by planting the buffer with shrubs and native ground covers or installing an aquatic shelf, but ensure that access points are maintained. The table below shows a schedule for when different maintenance activities should be performed on a stormwater pond. Stormwater Ponds Typical Routine Maintenance Activities and Schedule Activity Schedule . Inspect inlets, outlets and overflow spillway to ensure good condition and no evidence of erosion. • Clean and remove debris from inlet and outlet structures. • Mow side slopes. Monthly • Inspect pond dam for structural integrity. • Remove trash from the area around the pond. • If wetland components are included, inspect for invasive Semiannual Inspection vegetation. • Inspect for damage, paying particular attention to the control structure. • Check for signs of eutrophic conditions (e.g., algal blooms and fish kills). • Note signs of hydrocarbon build-up (e.g., an oil sheen), and Annual Inspection remove appropriately. • Monitor for sediment accumulation in the facility and forebay. • Check all control gates, valves, or other mechanical devices. • Repair undercut or eroded areas. As Needed • Perform wetland plant management and harvesting. Annually (if needed) 5 to 7 years or after 50% of • Remove sediment from the forebay. the total forebay capacity has been lost Clperaiiocas � Main�enance �uidanc� [locumer�t _ Activity Schedule • Monitor sediment accumulations, and remove sediment when the 10 to 20 years or after 25% of pool volume has become reduced significantly, or the pond the permanent pool volume becomes eutrophic. has been lost (Source: WMI, 1997) -0{�esatioas & 1�1air�tanance 6uitlasica D:bcar�ertt - Access to the site is adequately maintained for inspection and maintenance. Area is clean (trash, debris, grass clippings, etc. removed). Drainage ways (overland flow or pipes) to the practice are free of trash, debris, large branches, etc. Area around the inlet structure is mowed and grass clippings are removed. No evidence of gullies, rills, or excessive erosion around the inlet structure. Inlet pipe is in good condition, and water is going through the structure (i.e. no evidence of water going around the structure). Diversion structure (high flow bypass structure or other) is free of trash, debris, or sediment. Comment on overall condition of diversion structure and list type. Forebay — area is free of trash, debris, and sediment. Filter Strip or Grass Channels — area is free of trash debris and sediment. Area has been mowed and grass clippings are removed. No evidence of erosion. Rock Lined Plunge Pools — area is free of trash debris and sediment. Rock thickness in pool is adequate. Main treatment area is free of trash, debris, and sediment. Erosion protection is present on site (i.e. turf reinforcement mats). Comment on types of erosion protection and evaluate condition. No algal growth along or within the pond. Native plants were used in the practice according to the planting plan. No undesirable vegetation. Practice seems to be working properly. No settling around the stormwater pond. = C3pera�ioas� �laint�nance6uidanc� [�oc�r�eat = Comment on overall condition of stormwater pond. Vegetation within and around practice is maintained per landscaping plan. Grass clippings are removed. No significant sediment accumulation within the practice. No evidence of use of fertilizer on plants (fertilizer crusting on the surface of the soil, tips of leaves turning brown or yellow, blackened roots, etc.). Plants seem to be healthy and in good condition. Comment on condition of plants. Emergency overflow is free of trash, debris, and sediment. No evidence of erosion, scour, flooding, or animal activity around the structure. No evidence of erosion, scour, or flooding around the structure. Outlet structure is free of trash, debris, and sediment. No evidence of erosion, scour, or flooding around the structure. Outlet structure does not appear to be blocked. No evidence of animal activity. No evidence of seepage on the downstream face. Overall condition of Stormwater Pond: Notes: � If a specific maintenance item was not checked, please check N/A and explain why in the appropriate comment box.