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HomeMy WebLinkAboutContract 61498Date Received: 06/05/2024 Permit No.: SWFMA-23-0071 Time Received: 8:46 a.m. City Secretary No.: 61498 STORMWATER FACILITY MAINTENANCE AGREEMENT THIS AGREEMENT, made and entered into this 5th day of June 2024 , by and between Covenant Classical School, a Texas non-profit corporation, 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 a tract of land situated in the Abraham Stallions Survey, Abstract No. 1396, Tarrant County, Texas according to the Plat recorded in Document No. D222272261, Plat 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 Covenant Classical 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 storm water 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 Landowner, its successors and assigns, the location and dimensions of which is shown and OFFICIAL RECORD STORMWATER FACILITY MAINTENANCE AGREEMENT 1 Rev. 03/01/2022 BN CITY SECRETARY FT. WORTH, TX 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 of inspection is to follow-up on reported deficiencies and/or to respond to STORMWATER FACILITY MAINTENANCE AGREEMENT 2 Rev. 03/01/2022 BN 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 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 STORMWATER FACILITY MAINTENANCE AGREEMENT 3 Rev. 03/01/2022 BN 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 FACILITY 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 boundaries of the Property in which the Facility is located as outlined on Exhibit "A" but this paragraph shall not preclude construction of other improvements within the boundaries of the Property in which the Facility is located, which do not impede drainage. Landowner covenants and agrees that no habitable building shall be erected on the above property abutting such boundaries of the Property in which is Facility is located, 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 owner's association. STORMWATER FACILITY MAINTENANCE AGREEMENT 4 Rev. 03/01/2022 BN Executed this 5th day of June 2024 CITY OF FORT WORTH LANDOWNER Covenant Classical School a Texas non-profit corporation a �� Dana Burghdoff (Jun 20241 CDT) �✓"`^'��,� ��� Dana Burghdoff By: Christian Ellis Assistant City Manager Its: Chair, Building Committee City of Fort Worth Date: Jun 4, 2024 Date: i Approved as to Form and Legality: Contract Compliance Manager: .w By signing, I acknowledge that I am the person responsible for the monitoring Matthew Murray and administration of this contract, Senior Assistant City Attorney including ensuring all performance and City Attorney's Office reporting requirements. Date: Jun 4, 2024 n Rebecca Owen (Jun 4, 2024 10:56 CDT) ad4vongn ATTEST: 61 F'RrwoadA Rebecca Owen p-o o Planning Manager ?a�Il 41 Date: Jun 4, 2024 Jannette S. Goodall City Secretary Date: Jun 5, 2024 OFFICIAL RECORD CITY SECRETARY FT. WORTH, TX STORMWATER FACILITY MAINTENANCE AGREEMENT 5 Rev. 03/01/2022 BN STATE OF TEXAS § COUNTY OF TARRANT § This instrument was acknowledged before me on June 4th, 2024 by Dana Burghdoff, Assistant City Manager of the City of Fort Worth, on behalf of the City of Fort Worth. 1 O�PFtYPLef BROOKE BONNELL _ Notary Public , * * STATE OF TEXAS , 9�oFP� Notary I.D. 134009525 ' My Comm. Exp. Oct. 11, 2026 - - - - - - - - - - - - - - LANDOWNER Notary Public, State of Texas STATE OF § COUNTY OF �„ r� § BEFORE ME, the undersigned authority, a Notary Public in and for the State of on this day personally appeared Christian Ellis, Chair, Building Committee, known to me to be the person whose name is subscribed to the foregoing instrument, and acknowledged to me that he/she executed the same for the purposes and consideration therein expressed, as the act and deed of Covenant Classical School, a Texas non-profit corporation, and in the capacity therein stated. GIVEN UNDER MY HAND AND SEAL OF OFFICE this day of 20 2� . ,— — -- -- — — Notary a lie, State of ,�"` P 4 SUSAN WOODSON711, r `� Notary Publiot. * STATE OF TMS yn IB# 134782261 IG My Comm. Ep. March 4, 2028 STORMWATER FACILITY MAINTENANCE AGREEMENT 6 Rev. 03/01/2022 BN EXHIBIT "A" INSERT LEGAL DESCRIPTION STORMWATER FACILITY MAINTENANCE AGREEMENT Rev. 03/01/2022 BN EXHIBIT A STORMWATER FACILITY MAINTENANCE AGREEMENT S4,392 SQ. FT. OR 1.249 AC LOT 1, BLOCK 1 COVENANT CLASSICAL SCHOOL ADDITION ABRAHAM STALLIONS SURVEY, ABSTRACT NO. 1396 CITY OF FORT WORTH, TARRANT COUNTY, TEXAS BEING a tract of land situated in the Abraham Stallions Survey, Abstract Number 1396, Tarrant County, Texas, and being a portion of Lot 1, Block 1, Covenant Classical School Addition, an addition to the City of Fort Worth, Tarrant County, Texas according to the plat thereof recorded in D222272261, Plat Records, Tarrant County, Texas (P.R.T.C.T.) and being more particularly described by metes and bounds as follows: (Bearings referenced to U.S. State Plane Grid 1983 -Texas North Central Zone (4202) NAD83 as established using the AIITerra RTKNet Cooperative Network. Reference frame is NAD83(2011) Epoch 2010.0000. Distances shown are U.S. Survey feet displayed in surface values.) BEGINNING at a found "X" cut in concrete for the northwest corner of said Lot 1, Block 1, same being the northeast corner of Lot 1, Block 6, Amber Trails, an addition to the City of Fort Worth, as recorded in Cabinet A, Slide 966, (P.R.T.C.T.), and also same being on the south line of Lot 23, Block 15, Westpoint, Phase 1, an addition to the City of Fort Worth, Tarrant County, Texas, as recorded in Volume 388-110, Page 11 (P.R.T.C.T.); THENCE North 88°57'00" East, with the common line of said Lot 1, Block 1, and the south line of said Westpoint, a distance of 204.24 feet to a point; THENCE departing said common line and over and across said Lot 1, Block 1, the following courses and distances: South 5°24'34" West, a distance of 255.18 feet to a point; South 50°24'34" West, a distance of 46.89 feet to a point; South 87°00'30" West, a distance of 144.33 feet to a point; North 76°27'27" West, a distance of 24.11 feet to a point being on the west line of said Lot 1, Block 1, same being on the east line of aforementioned Block 6, Amber Trails, from which a 5/8-inch iron rod found for the southeast corner of said Block 6, Amber trails bears South 13°32'33" East, a distance of 179.12 feet; THENCE with the common line of said Lot 1, Block 1 and the east line of said Block 6, Amber Trails, the following courses and distances: North 13°32'33" East, a distance of 130.70 feet to a point; North 02`36'14" West, a distance of 155.16 feet to the POINT OF BEGINNING and containing 54,392 square feet or 1.249 acres of land more or less. SURVEYOR'S CERTIFICATION I, Toby G. Stock, a Registered Professional Land Surveyor licensed in the State of Texas, do hereby declare that this survey is true and correct and was prepared from an actual survey made under my supervision on the ground. Further, this survey conforms to the general rules of procedures and practices of the E OF T most current Texas Engineering and Land Surveying Practice . • ' • .FI F�' - a B Acts and Rules Concerning Practice and Licensure. •��G�S� , �9`p o / TOBY G. STOCK BAIRD, HAMPTON & BROWN ••••••••••••••••• engineering and surveying oby G. Stock a�0 6412 State of Texas Registered Professional Land Surveyor �� • �ESS�� •'� Np 949 Hilltop Drive, Weatherford, TX 76086 No. 6412 SUR\] tstock@bhbinc.com • 817.596.7575 • bhbinc.com Date: September 11, 2023 TBPELS Firm #44, #10011300, #10011302, #10194146 Drawinq: F:\io1b\2020\850\050 CCS Baseball Field\04 Survey\DWG\SWFMA 2023 Revision\ SWFMA. dwq 15 WESTPOINT, PHASE I 1 23 VOL. 388-110, PG. 11 P.R.T.C.T. POB X-CUT N88°57'00"E 204.24' 4 / AMBER TRAILS © Ln CAB. A, SLIDE 9606 1Ln D.R.T.C.T. STORMWATER FACILITY m MAINTENANCE 3 o AGREEMENT z 54392 Sa.Ft. 1.249 AC PRIVATE DRAINAGE O y EASEMENT ,y D2222. / P.R.T.C.T. 4 / W M M M / M ti s L2 144.33' S87°00'3011W 6 M M ~ N oM 7 M H — t5/8" IRF SURVEYOR'S CERTIFICATION I, Toby G. Stock, a Registered Professional Land Surveyor licensed in the State of Texas, do hereby declare that this survey is true and correct and was prepared from an actual survey made under my supervision on the ground. Further, this survey conforms to the general rules of procedures and practices of th most current Texas Engineering and Land Surveying Practice �E OF TF Acts and Rules Concerning Practice and Licensure. TOBY G. STOCK A'oby G. Stoc O 6412 State of Texas Registered Professional Land Surveyor OFEgS\OAP No.6412 OR - Date: September 11, 2023 SURv� NOTES Basis G bearing being U.S. State - Plane Grid -Texas North Central Zone mB(4202) NAD83 as established using BAIRD, HAMPTON & BROWN the AIITerra RTKNet Cooperative engineering and surveying Network. Reference frame is NAD83(2011) Epoch 2010.0000. 949 Hilltop Drive, Weatherford, TX 76086 Distances shown are U.S. Survey feet tstock@bhbinc.com • 817.596.7575 • bhbinc.com displayed in surface values. TBPELS Firm #44, #10011300, #10011302, #10194146 Drawinq: F:\iob\2020\850\050 CCS Baseball Field\04 Survey\DWG\SWFMA 2023 Revision\ SWFMA. dwq U1 WESTPOINT, PHASE I VOL. 388-110, PG. 11 J P.R.T.C.T. 2 m LOT 1, BLOCK 1 COVENANT CLASSICAL SCHOOL ADDITION N D222272261 o P.R.T.C.T. O Ln 00 r-i Ln N Line Table Line # Direction Length L1 S50.24'34"W 46.89 L2 N76.27'27"W 24.11 r! 30 0 S 60 GRAPHIC SCALE: 1" = 60 Feet LEGEND D.R.T.C.T................Deed Records, Tarrant County, Texas IRF .........................Iron Rod Found O.P.R.T.C.T.............Official Public Records, Tarrant County, Texas POB....................... Point of Beginning POC....................... Point of Commencement P.R.T.C.T.................Plat Records, Tarrant County, Texas EXHIBIT B STORMWATER FACILITY MAINTENANCE AGREEMENT S4,392 SQ. FT. 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N u o zo <o so GWHIC m M 20'-C" (zz'03 ) )• = Q'-o' (11'Kn•) ABBREVIATION KEY �� of x� x�xxaux�x <EY TO SYMBOLS _ -- uxE Ew.x E� Ic0 CE t 1 K I- I- lE oix po) LO xum ax (so) SO xxwix wK (m7 CO (xcu7E Loo %Dry MAP —{/ SWl d u2 PROTECT LOCATION r (n --- _______________________________________ LU ry O m ^..� `✓' ry 06 m oTH . x E owxu� � e I • � i�- I I I I ( aN it m�o �mho li I n so Lso Im GRAPHIC SCALE 1' = so'-0• (a 'xUj i' = I2o'-o'(n'xt7j DPION SED COVENANT CLASSICAL SCHOOL ADMTONRLOCKI THERE ARE R SIGNIFICANT OR LARGE TREES ON LEGEND •— • ARTIFICIAL LOT LINE ,px✓(� i1ff.ECMVPYi00F IIRIOH➢ °':'"i'r.�J iL�EEcu+m�roae sevfo Vic✓ = ORxGiBIE FA¢ NT sgry , ORMTUL.YSUBM U&A22 �an3u,�A,l, I � III 1111111111111III � II I l l l l l l l l l l l l l l l l 1J_L1J_L1J_L 1J-L1J_L- I i I I I I e I � �� Ili �----_�-- ---- (ws)moua8 I m,) wo H�awb apufiq� u+YIaS m 6 1 (oe) xro a wo +re ae P m I �) .� xare3 � xop Wuu.Na C6 01 14±1w I"v M � I 1 A3N snu .waxn Sum L In 7n7 I R!a •a (,Yft.ZZ) ,0-,99 = ,l 31VJ9 JIHdtlL� Z' �,u �v� OBl OZl 09 0 m 1 >a �� -r I I 88dLtlle�N�Ab153801 Ntl8M8 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 10 Rev. 11/19/2020 JLE PYRAMAT: SHORT-TERM AND LONG-TERM MAINTENANCE The purpose of this section is to provide some general guidelines for performing short-term and long-term maintenance of PYRAMAT with respect to maintaining vegetation reinforced with PYRAMAT, and patching of PYRAMAT (in the event it needs to be removed or replaced). These procedures are to be considered minimum guidelines for proper maintenance, and further maintenance techniques may be appropriate considering local practices and procedures. PYRAMAT PROTECTED CHANNEL For PYRAMAT to be most effective, it is important to ensure that it is properly maintained both during construction and after construction. Identifying trouble areas is easy with PYRAMAT, and it can make identifying potential threats much simpler and manageable. Look for areas with sparse, dying, or no vegetation as these are obvious signs that PYRAMAT is losing intimate contact with the channel surface. If loss of ground surface occurs, PYRAMAT will need to be removed and reinstalled as described in PATCHING AND REPAIRS Section after the eroded area is backfilled with compacted soil that is similar to material of the slope. After PYRAMAT is reinstalled, re- establish vegetation on the newly installed PYRAMAT and disturbed areas. Monitor the sites to determine if frequent watering may be required to establish vegetation. To minimize exposure to unwanted maintenance and repair, PYRAMAT armored channels should be free of unauthorized vehicular traffic. Routine maintenance and slope inspections should be performed with rubber tired vehicles. Tracked equipment such as skid steers, excavators, or dozers should only be allowed to traffic over PYRAMAT in times of emergency after vegetation establishment is complete. Failure to control unauthorized traffic can result in PYRAMAT being damaged resulting in erosion below PYRAMAT during storm events. In addition, routine mowing maintenance should be used to keep the protected area free of unwanted brush, saplings, and trees. Selective herbicides that target only the unwanted plants can be used as long as the vegetation established with PYRAMAT is not impaired. Failure to control the sapling and tree growth can result in the trees being uprooted during a flood. MAINTAINING VEGETATION Good vegetative cover will ensure maximum performance of PYRAMAT. Vegetative cover care starts before a project is complete and is ongoing until all PYRAMAT is installed. Vegetative cover should be given every opportunity to grow and establish well. This will require that a contractor periodically fertilize, water, and mow the grasses as needed until a project is complete in the short- term, with the owner of the channel fulfilling the maintenance of the channel in a similar fashion for the long-term. For the entire lifecycle of PYRAMAT, every effort must be made to prevent unauthorized encroachments, grazing, vehicle traffic, the misuse of chemicals, or burning during inappropriate seasons. 1. After the installation of vegetation is complete, immediately water and soak the entire area using a fine spray to prevent erosion and loss of seeds. A suggested amount of water is identified below. Prior to installation if using sod, the sod pads in storage should be kept moist at all times and not stored for more than 24 hours from site arrival to installation. Warmer weather will necessitate more frequent applications than listed below. A. For each reach/segment of installed vegetation, watering shall be conducted immediately after each installation or the day's work. B. For initial vegetation establishment, water vegetation in a manner consistent with best practices for vegetation type and location. C. Establish a watering schedule and follow until vegetation is well established and will thrive in the absence of manual watering. D. Avoid excessive application of water, so that surface runoff does not occur. Runoff should be prohibited. However, additional watering may be required for repaired or damaged areas. 2. Fertilizer should be applied as needed to address any nutrient deficiencies revealed in soil testing. 3. Implement best practices for mowing over PYRAMAT. While PYRAMAT is designed to withstand non -hydraulic stresses such as mowing, there are procedures to minimize exposure to unwanted damage. A. Immediately after installation, signage and post shall be installed stating that "Vehicles and Pedestrians are Prohibited from Access" on the slopes and the newly installed vegetation. Signage shall be posted every 1,500 lineal feet. B. Vegetated areas should be mowed to a height no less than 6 inches and no greater than 12 inches from natural ground after a period of 60 days of growth. The excessive grass clippings created from mowing shall be evenly spread on the slope section outside of the armored area. Periodic and final grass mowing should be performed until final inspection and acceptance of slope work. Monitor the vegetated areas throughout winter months and generate reports as needed, noting any issues that should be addressed. Minimum mowing heights will depend on the vegetation density and should be as follows: i. 6" with 0 — 30% vegetation establishment ii. 4" with 30 — 70% vegetation establishment iii. 3" with 70 — 100% vegetation establishment C. To prevent damage to the newly established vegetation, the mowing tractor should be fitted with 3-rib agriculture tires. Note that tractors with 8-foot flail mowers provide best results. Tractors with 15-foot brush hogs should avoid sharp turns up the slope to prevent damage to vegetation. D. Mowing should not take place for a minimum of 48 hours after a rainfall event of 2 inches or more to minimize the potential for rutting and/or damage to the slope surface. Maintenance mowing of the slope should be done on a consistent basis to prevent vegetation growing to more than 3 feet in height. This will minimize thatch thickness and potential damage to PYRAMAT. If turn -around pads are present, operate mowing equipment utilizing the turn -around pads to the fullest extent. The mowing blade height over PYRAMAT should be a minimum of 8 inches. However, should vegetation grow to more than 3 feet in height, the mowing blade height for the condition should be a minimum of 12 inches. 4. Some special circumstances may exist. When mowing the crown of a slope with a crown or crest equal to or exceeding 20%, it should be mowed with an articulating arm mower to minimize the potential for the mower blades to the catch PYRAMAT at the channel surface. The articulating arm mower should be level on the surface with the articulating arm extending over the crown. Pay close attention to areas where the slope changes. The mower blades should be set at a minimum height of 8 inches. If the PYRAMAT is damaged by the mowing blades at any time, mowing should stop immediately and further direction should be obtained to continue activity. Repair the damaged area as described in the PATCHING AND REPAIRS section below. 5. PYRAMAT protected channels are not as susceptible to animal burrowing due the tenacity of the PYRAMAT; however, inspections to detect the presence of burrowing animal activity are generally most effective immediately after the slope has been mowed. Animal burrows that are identified should be thoroughly excavated and inspected, backfilled with compacted soil that is similar to material of the slope, and vegetation re-established. This will avoid the possibility of water piping through unfilled portions of the burrows. Should PYRAMAT be damaged, it is to be repaired as described PATCHING AND REPAIRS section below. PATCHING AND REPAIRS PYRAMAT may require localized repair at times. For emergency repairs, an adequate supply of PYRAMAT should be maintained in inventory with the necessary tools to install. This will allow for a timely, initial repair of the system. In order to identify areas in need of repair, the site should be patrolled immediately after mowing and after rain events of 2 inches or more. When patrolling look for areas of sparse vegetation, exposed edges of PYRAMAT, and areas where direct contact between PYRAMAT and the channel surface is compromised. 2. PYRAMAT should be rated as Acceptable, Minimally Acceptable, or Unacceptable during inspection. A. Acceptable (A) - The rated area is in satisfactory, acceptable condition, and will function as designed and intended during the rain event. PYRAMAT has no exposed edges, is installed tightly by maintaining direct contact to the channel surface with no rilling beneath, and has over 90% vegetation cover. There is no noticeable damage present. B. Minimally Acceptable (M) - The rated area has a minor deficiency that needs to be corrected. The minor deficiency will not seriously impair the functioning of the area during the next rain event; however, the overall reliability of the project will be lowered because of the minor deficiency. PYRAMAT has 75% vegetation cover with un-vegetated patches as large as one square yard. Edges of PYRAMAT are exposed with noticeable damage. Minimal erosion has occurred underneath PYRAMAT. C. Unacceptable (U) - The rated area is unsatisfactory. The deficiency is so serious that the area will not adequately function in the next rain event. PYRAMAT has been physically torn, ripped, or lifted from the channel surface. Less than 75% vegetation cover is present with un-vegetated patches being greater than 1 square yard, and there is evidence that erosion is occurring beneath PYRAMAT. 3. Repair any raised or exposed edges of PYRAMAT by driving existing and additional pins along the edges as necessary to securely fasten to the ground. Inspect areas where the vegetation is not growing on top of PYRAMAT. Many times this is an indicator that PYRAMAT has lost contact with the ground beneath. Check for voids beneath PYRAMAT and fill any holes, gullies, etc. with compacted fill material if possible. Replace PYRAMAT as described below. 4. To repair PYRAMAT, cut out and remove damaged areas in a square configuration a minimum size of 2 ft by 2 ft. Remove all vegetation and debris atop of PYRAMAT. Loosen the top 1 to 2 in of soil in the patch area then seed. The subgrade of area to be patched shall be prepared to be smooth and uniform and transition smoothly into the in -situ area. Cut a square PYRAMAT patch a minimum of 12 in greater than the damaged area for all four sides of the patch. Overlap the patch area in all directions a minimum of 12 in. The patch overlaps shall be tucked under the existing damaged PYRAMAT material (Figure 21 and Figure 22). 5. Install pins on 6 in (150 min) (max) centers. For larger areas of damage, anchors should be installed to match existing anchor pattern. Once PYRAMAT is in place, vegetate per project specifications. FLOW -71 — EX S f INC I'YRAMAT — - Figure 21: PYRAMAT Patch Cross Section AREA 4F DAMAGED WI RM ■ ❑-N .e IN MAXIMUM CENTER ON OENTER/ • ■ \ �■ 7MINIMLIM m • i i 12, MINIMUM FI-� 911H�1FA' � Md�!M Figure 22: PYRAMAT Patch Plan View Exhibit "D" Stormwater Structural Maintenance CHECKLIST FREQUENT INSPECTION Mowing Remove Trash and debris Inspect irrigation system operation Remove grass clippings Violations Noted MINOR INSPECTION Condition of Pond Amount of silt in pond 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 Condition of filtration system REPAIRS REPAIRS DATE NOTES REQUIRED MADE STORMWATER FACILITY MAINTENANCE AGREEMENT 10 Rev. 03/01/2022 BN Berm or Embankment Settlement Location of erosion Evidence of Animals Evidence of Aquatic life Condition of Aeration Foundation STORMWATER FACILITY MAINTENANCE AGREEMENT 11 Rev. 03/01/2022 BN