HomeMy WebLinkAboutContract 50342 DOE # CITY SECRETARY
CONTRACT NO..
3 STORMWATER FACILITY
MAINTENANCE AGREEMENT
Z- 'THIS AGREEMENT, made and entered into this day of (v(k 2-1
,
Ig , by and between Austin-Pauri Land Enterprise LLC, acting by and through
Austin-Pauri Land Enterprise LLC, hereinafter referred to as "Landowner", the Hideaway
Acres Homeowner Association, Inc., hereinafter referred to as "Association" 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 6.941 acre tract located in the J.L. Hansborough Survey, Abstract No. 747,
Tarrant County, Texas according to the deed recorded in D217209655 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 Hideaway Acres hereinafter called
the "Plan", which is expressly made a part hereof, as approved or to be approved by the
City and the Landowner and Association provides for management of Stormwater within
the confines of the Property; and
WHEREAS,the City and the Landowner and Association, 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
STORMWATER FACILITY MAINTENANCE AGREEMENT
Rev.11/17/2016
f ra
Landowner, its successors and assigns, including Association, the location and dimensions
of which is shown and more particularly described by metes and bounds in the attached
Exhibit"A" ("Facility Property"); and
WHEREAS, Landowner agrees to convey the Facility Property to the Association
and the Association agrees to accept the Property where the Stormwater Facility is
located.
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 and Association, 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 and Association, 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 Facilities, berms, outlet structure, pond areas,
access roads, etc. Components of the Facility, which need maintenance or
STORMWATER FACILITY MAINTENANCE AGREEMENT 2
Rev.11/17/2016
replacement to perform their design function, shall be noted in the inspection
report along with the corrective actions to be taken.
3. The Landowner and Association, 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 and the Association, 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 and the Association, 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 or the Association. 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.
STORMWATER FACILITY MAINTENANCE AGREEMENT 3
Rev.11/17/2016
6. This Agreement imposes no liability of any kind whatsoever on the City. THE
LANDOWNER AND ASSOCIATION AGREES TO HOLD THE CITY
HARMLESS FROM ANY LIABILITY IN THE EVENT THE FACILITY
FAILS TO OPERATE PROPERLY. LANDOWNER AND
ASSOCIATION 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 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; OR FAILURE TO PERFORM ANY
OTHER DUTIES OR OBLIGATIONS HEREUNDER.
7. Landowner and Association 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 and
Association 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
9. Notwithstanding anything to the contrary contained or implied elsewhere
herein, it is expressly agreed and understood that the liabilities, indemnities and
obligations of Austin-Pauri Land Enterprise LLC as Landowner hereunder
shall expire and be of no further force or effect upon the transfer ("Transfer")
by Austin-Pauri Land Enterprise LLC to the Association of legal title to the
Facility Property, save and except for any liabilities, indemnities and
obligations of Austin-Pauri Land Enterprise LLC as Landowner hereunder
which have accrued and are due, payable and/or performable as of the date of
the Transfer and which shall expressly survive the Transfer.
Executed this ,5� day of I OLM 201S.
Austin-Pauri Land Enterprises, LLC City of ort Worth
Jesus J. Chapa
Name: Dustin Austin Assistant City Manager
Title: Managing Member
Approved as to Form and Legality
Hideaway Acres Homeowner Association, Inc. 41&� AX M n::�
kop����� ssistant City Attorney
Name: Dustin Austin FORT ATTEST
Title: Director
A
V ' * ify Secr
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No M&C REQUIRED
CITY ZF,C{ .::.T;
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STORMWATER FACILITY MAINTENANCE AGREEMENT --•--�� 5Rev.11/17/2016
STATE OF TEXAS §
COUNTY OF TARRANT §
This instrument was acknowledged before me on :S- 4 '[8 by
Je S u 5 J ChtA Assistant City Manager of the City of Fort Worth, on behalf of the City
of Fort Worth.
•` My Notary ID No ry Public, State of Texas
'��:f:o� �t''•= ExpiresDecem� � i
STATE OF TEXAS §
COUNTY OF TARRANT §
Before me, the undersigned authority on this Z l day of
Fgbrv6L!4 m9 2011 personally appeared
l n
known
to me to be the person whose name is subscribed to the foregoing instrument and
acknowledged to me that the same is the act of
Pa6bix- PIVY-� L44 f4lizr 6t 1. a6 , and that he executed the same as its
and as the act of such USA Ktmk jand for the purposes and
cons deration expressed in the foregoing instrument.
Mellissa Anderson
`
Notan Publico
State of Tex Not Public, State of Texas
I^—
OW
Expires:04-16-20 8 '
STATE OF TEXAS §
COUNTY OF TARRANT § 'It ;ik ";
CITY ZCT
This instrument was acknowledged before me on 2, 1� by, ,
Du St\n l�n authorized represen tive, acting on behalf of the
Ae wA"&1 8&fes Homeowners Association.
Mellissa Anderson J� L(�,_
°'a^ r".:. Notary Public State of Texas
Stote of Texr
l-�
oc � Expires:04-16-20 8
STORMWATER FACILITY MAINTENANCE AGREEMENT 6
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=arce and reporting requirements.
3
le—S. Morales
Development Manager
EXHIBIT "A"
INSERT LEGAL DESCRIPTION
STORMWATER FACILITY MAINTENANCE AGREEMENT 7
Rev.11/17/2016
PROPERTY DESCRIPTION
STATE OF TEXAS:
COUNTY OF TARRANT:
BEING a tract of land situated in the JL. Hansborough Survey, Abstract No. 747. City of Fort
Worth Tarrant County, Texas, being a portion of Lot 3. Block One of the final plat of Lots 1, 2,
and 3, Block One, All American Farms, an addition in Tarrant County, Texas as recorded in
Volume 388-173, Page 31, Plat Records, Tarrant County, Texas (PRTCT), being a portion of that
tract of land as described in deed Massimo Pauri and Mey-Ling Pauri, recorded in D216095993,
Deed Records. Tarrant County, Texas (DRTCT). and being more particularly described as
follows:
COMMENCING at a 1/2" rebar found in the north right-of-way line of Ray White Road (R.O.W.
varies) at the southeast corner of said Lot 3, Block One of All American Farms addition and the
west line of Block 4 of the final plat of Bear Creek Vista, an addition to the City of Fort Worth,
Tarrant County, Texas as recorded in Cabinet A. Slide 9926. PRTCT;
THENCE N 00'2i'1i" W, departing the north right-of way line of said Ray White Road, along
the east line of said Lot 3, Block One and the west line of said Block 4 of Bear Creek Vista, a
distance of 513.49 feet to the POINT OF BEGINNING of the herein described tract of land;
THENCE departing the west line of said Block 4 of Bear Creek Vista, across said Lot 3, Block
One, as follows:
S 89'38'49" W. a distance of 97.91 feet to the beginning of a non-tangent curve to the left.
having a radius point that gars S 69'5931" W. 50.00 feet;
Northwesterly, along said curve, having a central angle of 33'2520". an arc distance of
29.17 feet, and a chord that bears N 3643'09" W, 28.75 feet to the end of said curve:
N 19'0643" E. non-tangent to said curve, a distance of 102.69 feet;
N 23'0643" W. a distance of 9.53 feet to the north line of said Lot 3, Block One and the
south line of Block 4 of Bear Creek Vista, an addition to the City of Fort Worth, Tarrant
County, Texas as recorded in Cabinet A. Slide 9058, PRTCT;
N 89'32'59" E, along the north line of said Lot 3. Block One and the south line of said
Block 4 of Bear Creek Vista as recorded in Cabinet A. Slide 9058, PRTCT, a distance of
84.43 feet to a 1/2" rebar found at the northeast corner of said Lot 3, Block One, said
corner, lying the west line of aforementioned Block 4 of Bear Creek Vista as recorded in
Cabinet A. Slide 9926, PRTCT;
THENCE S 00'21'11" E. along the east line of said Lot 3. Block One and the west line of said
Block 4 of Bear Creek Vista as recorded in Cabinet A. Slide 9926, PRTCT. a distance of 128.90
feet to the POINT OF BEGINNING and containing 12,690 square feet or 0.290 acre of land.
NOTE:
Bearings are referenced to Texas State Plane Coordinate System, North Central Zone, NAD83 as
derived from Western Data Systems RTK Cooperative Network.
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DETENTION SUMMARY
A DETENTION FACILITY HAS BEEN DESIGNED TO SERVE THE PROPOSED
HIDER WA Y ACRES DE VEL OPMENT T. IN ORDER TO REDUCE THE PEAK FL 0 W
GENERATED BY THE DEVELOPMENT DRAINAGE AREAS 'OS-A ' , -A-I-, 'A-2'
'OS-B' 8 'B-l' WILL DRAIN TO DETENTION POND 'A '. POND 'A ' WILL THEN
OUTFALL BY MEANS OF A 30' DIAMETER PIPE THAT WILL CONNECT TO AN
EXISTING JUNCTION BOX A T THE NORTHEAST CORNER OF THE SITE AND BE
ROUTED THROUGH EXISTING S.D. LINE 'A ' DOWNSTREAM CONSTRUCTED
WITH BEAR CREEK VISTA - PHASE It IMPROVEMENTS (W-1285 ).
THE DETENTION ANALYSIS WAS PERFORMED USING THE 14YDRAFLOW
PROGRAM. THE MODIFIED RATIONAL METHOD WAS UTILIZED TO MODEL
THE DRAINAGE AREAS BEING DETAINED. DRAINAGE AREAS 'OS-A ' , 'A-I' ,
'A-2' , 'OS-B' 8 'B-l' WERE COMBINED INTO A SINGLE DRAINAGE AREA
NAMED 'COMBINED A 8 B' . A MODIFIED RATIONAL 14YDROGRAP14 WAS
GENERATED FOR 'COMBINED A 8 B' AND THEN ROUTED THROUGH
DETENTION POND 'A '.
r� THE TOTAL 100-YEAR DISCHARGE FROM THE PROPOSED DEVELOPMENT
o IS APPROXIMA TEL Y 4 7.3 CFS. REFER TO THE FINAL IS WW FOR DETAILED
N CAPACITY CALCULATIONS OF S.D. LINE 'A' CONSTRUCTED WITH
BEAR CREEK VISTA - PHASE Il IMPROVEMENTS (W-1285 ).
N LANDSCAPE NOTES
0 1. THE OWNER SHALL BE RESPONSIBLE FOR THE ESTABLISHMENT, MAINTENANCE,
d AND VIGOR OF PLANT MATERIAL IN ACCORDANCE WITH THE DESIGN INTENT AND
AS APPROPRIATE FOR THE SEASON OF THE YEAR.
2. LANDSCAPE AND OPEN AREAS SHALL BE FREE OF TRASH, LITTER, AND WEEDS.
a 3. NO PLANT MATERIAL SHALL BE ALLOWED TO ENCROACH ON R.0. W. ,
N SIDEWALKS, OR EASEMENTS TO THE EXTENT THA T VISION OR ROUTE
o OF TRAVEL FOR VEHICULAR, PEDESTRIAN, OR BICYCLE TRAFFIC IS IMPEDED.
CL
a 4. TREE MAINTENANCE SHALL BE IN ACCORDANCE WITH THE STANDARDS
u OF THE INTERNATIONAL SOCIETY OF ARBORICUL TURE.
Q
a 5. TREE STAKING MATERIALS, IF USED, SHALL BE REMOVED AFTER
o (I) GROWING SEASON, NO MORE THAN (I) YEAR AFTER INSTALLATION
(STEEL TREE STAKES, WIRES, AND HOSES ARE PROHIBITED).
N 6. REMOVE TRASH, SEDIMENT, OR DEBRIS FROM POND AREAS. THE
o PONDS ARE DESIGNED TO ACCUMUL A TE SEDIMENT T. REMO VE SEDIMENT
CL WHEN THE DEPTH REACHES 8 TO l0 INCHES. REPAIR DISTURBED AREA
.11
WITH SEED AND STRA W.
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7. MOW GRASS TO A HEIGHT NO LOWER THAN 4 INCHES IN THE BOTTOM
AND SIDE OF PONDS AND DRAINAGE DITCHES. REMOVE GRASS CLIPPINGS AND
LEA VES.
8. DISPOSE OF ACCUMULATED SEDIMENT, TRASH, AND DEBRIS IN A MANNER
i THAT IS PERMITTED BY THE LOCAL, STATE, AND FEDERAL REGULATIONS.
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Pond Report a
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Hydralloer Hyd'ro0raptr--icy In1u Isu vu vy.' Olud r>dsr Jun 7.2017
Pond No. I - Pond A STAGESTORAGEDISCI ARGERATING CURVE
Pond Data
Pond st9tape Is based on user•dsfined values.
Stage(Storage Table
Stage M3 Elevation(ft) Contour area (sqft) Incr.Storm"(cuft) Total storage(cult) DischOrge Ws 1
0:00 725.00 rOa 0 0 0.0
0.50 725.50 We 272 272 0,0
1.00 726,00 ria 1,190 1,462 0.0
1.50 72650 n+a 11638 3,100 0.0
2.00 727.00 n1a 1,879 4,879 0.0
2.50 727.50 ria 2,136 7.115 16.7
1nn 72, M} Min 7.41n a,ri9rs 23.6
3.50 728.50 n!a 2.699 12,224 28.9
4.00 729.00 ria 3,002 115.226 33.4
4.50 729.50 ria 3,322 18.546 37.4
5.00 730.00 nda 3,656 22.204 40.9
5.50 730.50 NO 4,007 26.211 44,2
6.00 731.00 nla 4,377 .30.588 _ 47,3 I0'0-YEAR
6.50 731,50 No 4,925 35.513
7.00 732.00 ria 51389 40 902 234.0
I`-
a Culvert.)Orifice Structures Weir Structures
N
LO [Al (o] [G] I r Mir] [A] [D] [a] [D]
M49(in; = 39,90 999 QA 000 Grist On(n) = 79.QQ 9199 4,99 999
N Span lir) - 30.00 0.00 0.00 U cc Crest El,(ftl - 731.W 0.00 0.00 0.00
CV No.Bartels = 1 0 0 0 Weir Coeff. = 2.60 3.33 3.33 3.33
p Invert E.(f1) = 725.00 0.00 0.00 0,00 Weir Type = Broad - - -
Length rft) n 47.75 0.00 OAU U.00 MUM-Stage = No No No N:)
IZI Slope(%) = 1.05 0.00 0.00 n,a
75 N valua - .013 .013 .01- n/a �-EMERGENCY SPILLWAY
Orifice Coeff. = 0.60 0.60 0.60 0.60 Exfil.(in " m 0.000(by Wet area)
i Multi-stage = n7a No No No TW Elew(ft) - 727.00
LL _..
O No%:Mjwf%*rlca r;and du1Mt(asM wdFW War ngsvc Owrxad kv d"ca a nft ns(scr a+rl ue ngrgwnra,i a'
L-
11
N
C
Stage(ft) Stag#i Discharge E 1*V(111)
8.00 73300
L
U
Q
T
0 6.00 731 00
a�
2
c
0
Ii 4.00 12900
a3
O
f.�
fU
2.00 727-00
0
C7C
nm 7?.5 M
0 0.) 20.0 400 60.0 80.0 1000 1200 r4C.0 16C 0 1800 200.0 220.0 2400
T1- MV.11Atr.e(ds)
(D Total Q
O Fd=HT
r
w SHEET 4 OF 5
j��
cotanty Tarrant
PONDA -
0dst1n8 Runoff CWWcent 0,62 Proposed Rurwff Coef iclent
Area 9,574 Acres Area 1.1.81 Ac*es
inie d Concetration 15 - Min. Time dConoetraUcin IS 'M n,
Year Runoff .9.71 CFS 1 Year Runoff 24..1: CFS
Year Runoff 28.86 CFS 5Year Runoff s9 CFS
00 Year Runoff 47.34 CPS 100 Year Runoff - CFS
0�1w= 19.71 CFS Table 5.15:Tarrant Par 1 Yr Return Period:a=0.8217,b=43.653,d=8
q;se 28.86 CPS County Rainfall For 5 Yr Return Period:a x.8142,b=71.154.d=12
0.,Noe 47.34 CFS Data For 100 Yr Return Period:a=0.7798,b=110.202,d-14
Ttl1« 17.50 Min. For 1Y Return Period:a=95.84,b=13.43
Table 1.18 Rainfall
Tdt 21.61 Min. For S Yr Return Period:a-170.81,b-19.44
Fedora
Ttl1op- 24.90 Min. For 100 Yr Return Period:a=322117,b=24.39
P111= 489 in. Pao-1= 1.77 in.
Pis= 1.44 in. p,ap„s= 2,95 ur
Pmm= 2.63 in. Plpplyp= 4.64 in.
V'..,,r,,,e 4613.10— Cu.Ft Vim= °01.90.72 Cu.Ft
O 7817.68 Cu.Ft Vim= 15756,1.c Cu.Ft
CQ ®= 148:167 JCu.Ft VM dm= 30581.:7 Cu.Pt
O
2 Design E4uaftns
The design of detent"i using the Modond Rational Method is presented as a non-derative approach
N suitable for spreadsheet calculation(Debo S Reese.2003).
-- The allowable release rate can be determined from
O 0.a C.f A (1.28)
where
Qa = allowable rep--ase rate(cfs)
75 C. = predevelopment Rational Method runoff coefficient
I = rainfall intensity for the corresponding time of concemratwn(in1hr)
A = arca(acres)
i
LL- The conical duraborr of stem the time value to determine rainfall intensity,al which the storage volume 0s
O maximized,is
L
C1 12CAab
Te - Q b
c
_v where.
C- T, = critical storm duration(min)
N Q. = a- '' release rate(cts)
C = dewktped condition Rational ktelhod runoff coefficient
V A = arca(acrccs)
Q a,b = rainfall faclors dependent on location and return penod taken from Table r 18
Y.
v
„T The required storage vdttme.in cubic feet can be obtained from the equations below
VO_,—,-60(CAs-(2CsbAGJ"1+(a.12)(b-4)1 (1.28a)
V„riiii e'vp d .,.ry,Pirlalpra (1.28b)
2
/ "rhev°
C V,w, = preliminary required storage(R'')
v V,.,, = required storage(ft')
CL I. = time of concentration for the developed condition(min)
/ Pip = 3-hour(ISO•minute)storm depth(in)
v
P. = storm depth for the cr#xw duration(0n)
O all olherr variables are as defined above
X
(D The equations above include the use of an adjustment factor to the cakulated storage volume to account
for under sizing The factor(P-p(P„)is the ratio of the 3-110ur Storm depth for the return frequency
t divided by the rainfall depth for the critical duration cakularled in Equation 1 27
} Disclaimer:This spreadsheet tool has been prep ireto assist the appllcard in pre in%calculartions for sinal l kites in accordance with t he City of FortWorth Criterial
0
<Y Manual(see section 3,4.1.of the i5WM Criteria IN Ionauail repircring limitations on olthe Modified RatknallMethod) The appfica'it is responsible fo,ensuring that
I submitted calve atfensarc oorrect.
0E=71ED
SHEET 5 OF 5
� r
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
Rev.11/17/2016
Exhibit "D"
Stormwater Structural Maintenance CHECKLIST
FREQUENT REPAIRS REPAIRS
INSPECTION DATE REQUIRED MADE NOTES
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
STORMWATER FACILITY MAINTENANCE AGREEMENT g
Rev.11/1712016
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.11/17/2016
FORT WORTH Fo t Wath 0 A
Stormwater
INSPECTION CHECKLIST FOR SIMPLE DETENTION BASIN Management
Facility Name: Facility Agreement Number:
Basin/Pond Number: Inspected By: Date:
Type of Inspection:Annual ,Quarterly , Monthly , Routine , or Storm Event (#days since event
Basin Conditions:
1. Is there standing water or wet spots? Yes_No_Comments
2. Does sides or bottom show signs of erosion, settling,cracking,etc? Yes_No_Comments
3. Does dam or emergency spillway show signs of erosion, settling,
cracking,or other problems? Yes_No_Comments
4. Is there evidence of animal burrowing in dam? Yes_No Comments
5. Is there evidence of changes in shape or volume of basin? Yes_No T Comments
6. Do vegetated areas need mowing? Yes_No_Comments
7 Are there trees or woody growth in dam? Yes_No_Comments
8. Are there areas that need to be re-vegetated? Yes_No_Comments
9. Is there any accumulation of silt,trash,debris or litter in the basin? Yes_No_Comments
10.Are there any other basin maintenance activities needed? Yes_No_Comments
Structural Components:
1. Are pipes, channels,trash racks, etc.free of obstructions? Yes_No_Comments
2. 'Are pipes, spillway or trash racks in need of repair? Yes_No_Comments
3. Is the low flow or trickle channel in need of repair? Yes_No—Comments
4. Is the outfall channel in need of repair? Yes_No_Comments
5. Are there any other structural maintenance activities needed? Yes_No_Comments
Plan for correcting deficiencies: Signature:
Owner's Representative
Date:
Form CFW-6
CFW-SEPTEMBER 2015 Appendix A A-17
f-11TWORTH °
INSPECTION CHECKLIST FOR SIMPLE DETENTION BASIN StManagement
Facility Name: Facility Agreement Number:
Basin/Pond Number: Inspected By: Date:
Type of Inspection:Annual ,Quarterly_, Monthly_, Routine_,or Storm Event (#days since event
Basin Conditions:
1, Is there standing water or wet spots? Yes_No_Comments
2. Does sides or bottom show signs of erosion, settling,cracking,etc? Yes_No_Comments
3. Does dam or emergency spillway show signs of erosion,settling,
cracking,or other problems? Yes_No_Comments
4. Is there evidence of animal burrowing in dam? Yes_No_Comments
5. Is there evidence of changes in shape or volume of basin? Yes_No_Comments
6. Do vegetated areas need mowing? Yes_No Comments
7. Are there trees or woody growth in dam? Yes_No_Comments
8. Are there areas that need to be re-vegetated? Yes_No_Comments
9. Is there any accumulation of silt,trash,debris or litter in the basin? Yes_No_Comments
10.Are there any other basin maintenance activities needed? Yes_No_Comments
Structural Components:
1. Are pipes,channels,trash racks,etc.free of obstructions? Yes_No_Comments
2. Are pipes,spillway or trash racks in need of repair? Yes_No_Comments
3. Is the low flow or trickle channel in need of repair? Yes_No_Comments
4. Is the outfall channel in need of repair? Yes_No_Comments
5. Are there any other structural maintenance activities needed? Yes_No_Comments
Plan for correcting deficiencies: Signature:
Owner's Representative
Date:
Form CFW-6
CFW-SEPTEMBER 2015 Appendix A A-17