HomeMy WebLinkAboutSW8030101_COMPLIANCE_20060308STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SW
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
COMPLIANCE EVALUATION INSPECTION
DOC DATE
YYYYMMDD
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Michael F. Easley, Governor
a� R
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William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
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Alan W. Klimek, P. E. Director
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Division of Water Quality
.�
Coleen H. Sullins, Deputy Director
Division of Water Quality
March 8, 2006
Mr. Michael McGuire, Vice President
Home Depot U.S.A, Inc., Real Estate Law
2455 Paces Ferry Road
Atlanta, GA 30339
NOTICE OF INSPECTION:
Home Depot in Jacksonville
Stormwater Project No. SW8 030101
Onslow County
Dear Mr. McGuire:
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the
project's stormwater controls conducted on March 8, 2006 to determine compliance with
Stormwater Permit Number SW8 030101 issued on July 15, 2003.
A summary of the findings and comments are noted under Section 4 of the report.
Please inform this Office in writing before April 8, 2006 of the specific actions that will
be undertaken and the time frame required to correct the deficiencies. Failure to provide
the requested information, when required, may initiate enforcement action. If you have
any questions please contact me at the Wilmington Regional Office, telephone number
(910) 796-7397.
Sincerely,
Lq • ii...
Gary 11ekher
Environmental Technician
EBlghb: S:IWQSISTORMWATIINSPECT1030101.Mar06
cc: Larry Diehl (Greenberg Farrow Engineering)
Shelton Sullivan (DWQ Assistance & Compliance)
Brandon Westin (City of Jacksonville Inspections)
Larry Stalvey (Home Depot)
Gary Beecher (DWQ)
N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 796-7215 Customer Service
Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1-877-623-6748
N COENR
Rome Depot in Jacksonville
SW 030101
March 8, 2006
STORMWATER COMPLIANCE INSPECTION REPORT
1
2
0
4.
Project Name: Home Depot in Jacksonville
Project Number: 030101 Control Measure: Wet Pond
Water Body: Sandy BranchlWhite Oak Classification: "SC NSW"
Directions to site: Western Blvd. In Jacksonville
Inspection Date:
Weather Conditions:
March 8, 2006
Compliance Issues:
Warm & Dry (60's)
(a) The Stormwater pond in general looks much better and appears to be
functioning correctly.
(b) The outlet structure has been repaired. It looks good and appears to be
functioning correctly.
(c) The pond slopes have been covered with seed and matting. It's too early to tell
if the amount of seed & matting will produce adequate grass coverage of the
slopes. Another compliance inspection will be performed in late spring to
check on the pond slopes and to insure the pond is still functioning correctly.
Required Actions: (Explain each deficiency and what needs to be done to bring
the system back into compliance)
(a) The stormwater pond must be maintained on a routine basis. The outlet
structure must be periodically inspected to insure that it is functioning
correctly.
(b) When the grass begins to grow it must be routinely mowed. Any bare or
eroding spots on the pond slopes must be filled with dirt and stabilized with
either sod or sown grass. The back -side of the pond slopes should also be
stabilized with sown grass or sod. ( this is the side closest to the outlet
structure)
2
r� • OF W A rE
0 Y
Michael F. Easley, Governor
William G. RossJr., Secretary
North Carolina Department of Environment and Natural Resources
February 15, 2006
Mr. Michael McGuire, Vice President
Home Depot U.S.A, Inc., Real Estate Law
2455 Paces Ferry Road
Atlanta, GA 30339
NOTICE OF INSPECTION:
Home Depot in Jacksonville
Stormwater Project No. SW8 030101
Onslow County
Dear Mr. McGuire:
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen N. Sullins, Deputy Director
Division of Water Quality
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the
project's stormwater controls conducted on February 13, 2006 to determine -compliance
with Stormwater Permit Number SW8 030101 issued on July 15, 2003.
A summary of the findings and comments are noted under Section 4 of the report.
Please inform this Office in writing before March 15, 2006 of the specific actions that
will be undertaken and the time frame required to correct the deficiencies. Failure to
provide the requested information, when required, may initiate enforcement action. If
you have any questions please contact me at the Wilmington Regional Office, telephone
number (910) 796-7397.
Sincerely,
L W. 1,1,
Gary B ec er
Environmental Technician
EB/ghb: S:IWQSISTORMWATIINSPECT1030101
cc: Larry Diehl (Greenberg Farrow Engineering)
Shelton Sullivan (DWQ Assistance & Compliance)
Brandon Westin (City of Jacksonville Inspections)
Larry Stalvey (Home Depot)
Wilmington Regional Office
7RT%�
N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 796-7215 Customer Service
Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1-877-623-6748 1iK_D[N; fi
Home Depot in Jacksonville
SW 030101
February 15, 2006
• STORMWATER COMPLIANCE INSPECTION REPORT
1. Project Name: Home Depot in Jacksonville
Project Number: 030101 Control Measure: Wet Pond
Water Body: Sandy BranchlWhite Oak Classification: "SC NSW"
Directions to site: Western Blvd, In Jacksonville
2. Inspection Date: February 13, 2006
Weather Conditions: Cool & Dry (50's)
3. Compliance Issues:
(a) The Stormwater pond is starting to look much Fetter. The outlet structure
appears to have been repaired and appears to be functioning correctly.
(b) The slopes and area around the pond still require more grass coverage.
Without adequate grass coverage the sides of the pond slopes will erode and
sediment will end up inside the pond.
4. Required Actions: (Explain each deficiency and what needs to be done to bring
the system back into compliance)
(a) More grass must be added to the pond slopes and to the disturbed area
surrounding the pond. The grass can be either sod or a mixture of sown grass
with mulch. Hydro -seed can also be used on the pond slopes.
Inspector: Gary Beecher
Water Quality/Wilmington Regional Office: (910) 796-7397
EBlghb: S:IWQSISTORMWATIINSPECT1030101.Feb06
2
.� of W A 7" '4
0 `C
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
April 27, 2004
Mr. Michael T. McGuire, Vice President
Home Depot U.S.A., Inc., Real Estate Law
2455 Paces Ferry Road
Atlanta, GA 30339
NOTICE OF INSPECTION:
Home Depot @ Jacksonville
Stormwater Project No. SW8 030101
Onslow County
Dear Mr. McGuire:
Alan W. Klimek, P.E.,Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
Please find attached a copy of the completed form entitled "Stormwater Compliance
Inspection Report". The report summarizes the findings of a recent inspection of the
project's stormwater controls conducted on April 16, 2004 to determine compliance with
Stormwater Permit Number SW8 030101 issued on July 15, 2003.
A summary of the findings and comments are noted under Section 4 of the report.
Please inform this Office in writing before May 27, 2004, of the specific actions that will
be undertaken and the time frame required to correct the deficiencies. Failure to provide
the requested information, when required, may initiate enforcement action. If you have
any questions please contact me at the Wilmington Regional Office, telephone number
(910) 395-3900.
Sincerely,
4-1, �-, 3 ..a,
Gary Beecher
Environmental Technician
RSS/ghb: S:IWQSISTORMWATIINSPECT1030101
cc: Wilmington Regional Office
Gary Beecher
N. C. Division of Water Quality 127 Cardinal Drive Extension (910) 395-3900 Customer Service
Wilmington Regional Office Wilmington, NC 28405 (910) 350-2004 Fax 1 800 623-7748
A VAT
NCDENR
,M
STORMWATER COMPLIANCE INSPECTION REPORT
Project Name: Home Depot @ Jacksonville
Project Number: 030101 Control Measure: Wet Pond
Water Body: Sandy Branch/ White Oak Classification: "SC NSW"
Directions to site
2. Inspection Date
Weather Conditions
3. Compliance Issues:
Western Blvd, Jacksonville
April 16, 2004
Warm and Dry (60's)
Y N
❑ ❑ The drainage area (including offsite) and built -upon area to the permitted
system are per the approved plan. No unpermitted offsite drainage enters
the system.
❑ ❑ All the built -upon area associated with the project is graded such that the
runoff drains to the system.
❑ ❑ For ponds/infiltration, the outlet/bypass structure relative elevations are
per the approved plan. (Must be verified via as -built survey if in question).
X ❑ The inlets and outlet structure are located per the approved plans and do
not cause short-circuiting.
❑ A trash rack is provided over the outlet weir and orifice.
❑ X All slopes are grassed with permanent vegetation and are not eroding.
❑ ❑ Vegetated slopes are no steeper than 3:1.
❑ ❑ The approximate amount of permitted surface area has been provided.
(Must be verified via as -built survey or designer's certification.)
❑ ❑ Required drawdown devices are correctly sized per the approved plans.
All required design depths are provided.
❑ ❑ All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
❑ ® The designer's certification has been submitted.
❑ ❑ The required deed restrictions are correctly recorded and submitted.
❑ ❑ The number of lots or outparcels is per the permitted amount.
❑ ❑ The built -upon area on the lots or outparcels does not appear to exceed
the maximum amount (must be verified via as -built survey if in question)
❑ ❑ Curb outlet swales are constructed, located properly, are 100' long and
have dense vegetated cover.
❑ ❑ The road, cul-de-sac, parking lot and sidewalk widths are per the
approved plan.
❑ ® Required maintenance is being performed.
❑ ❑ Outparcels have their own offsite permit.
❑ ❑ For low density projects, roadside swales are 3:1, vegetated and stable.
❑ ❑ For low density projects, there are no unpermitted pipes on the project.
i
4. Required Actions: (Explain each deficiency and what needs to be done to bring
the system back into compliance)
(a) There are several bare spots along the pond slopes. These need to be seeded
with grass or covered with sod.
(b) The outlet structure needs to have screens or grates placed over the openings
on its sides. Trash can enter these openings and disrupt the outlet system.
(c) Please send us a copy of the designers certificate for the pond. Thank You
(d) A large amount of sediment has entered the fore bay via the inlets and field
end sections. Please make sure that the accumulated sediment is not blocking
stormwater flow into the fore bay and pond. The sediment may need to be
removed.
Inspector: Gary Beecher
Water Quality/Wilmington Regional Office/(910) 395-3900 Ext 222
RSS/ghb: S:IWQSISTORMWATIINSPECT1030101.Apr04
^'
DRY DETENTION BASIN ANALYSIS
(3:\OATA\VVPDATAY@/Q8\PONO\030101.VVK1
PROJECT NAME, Home Depot, Jacksonville
RENEWER: LLewis
DATE'. 10'Jun'03
Receiving Stream: Sandy Run Branch Class: SC NSW
Drainage Basin: White Oak Index No. VVOK8218'10~1
Site Area 13.19 acres
Drainage Area
IMPERVIOUS AREAS
Rational
Buildings
126512.00
square feet 1.00
Parking
287720.00
square feet 1.00
square feet
Outparoe|B
211048.00
square feet
square feet
square feet
OWS
%|MFERV|OUO 08.44%
Rational? Put a "Il " in this box if the Rational Method is used.
VOLUME CALCULATION I
inches
Design Storm
ORIFICE CALCULATION
No. of Orifices
No. of Orifices
k
in
Orifice Area
7.07
sq. in.
Orifice Area
0.00
sq. in.
days
COMMENTS
�r
Kevised 6/26/03
17,
Home Depot
Jacksonville, NC
Permanent Water Quality Pool
Design Basis
Drainage Basin - 16.22 ac. — 88.5% Impervious
Pool Depth -- 3.5 ft. with 3:1 side slopes
SAM - Coastal = 6.5
RECEIVED
JUL 112003
DWQ
PRO, # � � e U 3C)i U I
Pool Surface Area for 85% pollutant removal efficiency.
Area required = acreage of drainage basin x (6.5/100) x 43,560 = 45,925 sf.
Pool Volume Required Minimum
Surface Area = 45,925
Bottom Area = 33,060
78,985/2 = 39,492sf x 3.5 ft.=138,224cf
Fore Bay_ Volume = 20% of 138,224cf = 27,645
Check WQV
Acreage x Rv x 1 "/12 Rv = 0.5 + 0.0091 (I)
I = 14.3 ac./16.22 = 0.885
WQV = 16.22 x 0.451 x 0.083 x 43,560 Therefore, Rv — 0.451
WQV = 26,448cf OK < 138,224cf
Rate of Infow for 1 inch rainfall — first flush (60 minutes)
138,224cf /3,600 sec. = 38.4 cfs
Rate of Ouflow (48 hours)
138,224cf/ (48 hr. x 3,600 sec. Per hour) = 0.84cfs
Minimum Sediment Storage (at /z" sediment/acre, 1,81 cf per acre)
16.22 ac x 1,815cf per acre = 29,439cf
Pool Weir — 100-year frequency storm (post -development)
Q = CIA
Q1oo = 0.9 x 6.57 x 16.32 = 96.5cfs
Moo = 96.5cfs/(5)(0.53/2) (Width = 5 ft.) (Depth Flow 0.5ft)
W1oo= 54.6 If
CARpj0,0
4 •
SEAL
Orifice Size for 48-hour minimum outflow for 1-inch first flush detention volume of
145,119cf .
Try 3" PVC
Q = KA (32.2)
Q = (0.5) 0.0491) (32.2) = 0.79cfs
K=0.5 Entrance Loss Coeficient
A= area 3" Dia. Orifice
g= 32.2
):\Adrnin\2001 \20010629\20010629 Permanent Water Quality Pool 6_26_03.doc
Pa ge 1 of 2
Reviser) 6/26/03
Check outflow tirne
145,1_19cf + 0.79 cfs_= 51 hours
3600 sec/hr
,,�S�rnn+iqquhrrr►
ESSI
: SEAL
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1AAdmin\2001 \20010629\20010629 Permanent Water Quality Pool 6_26_03.110c Pa gc 2 of 2
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From: Michael Matthews, Engineering Division, Public Utilities Department
To: Linda Lewis, Water Quality Section
Date: March 31, 2004
Subject: Stone Water Issues at the Home Depot
Dear Linda Lewis,
On March 16, 2004 1 was investigating some turbidity problems in the creek behind the Home
Depot during a rain event. During this investigation I found some issues I thought might be a
storm water problem. I don't know if it is a design problem or just an issue of runoff volume, but
l felt it was important enough to identify and bring to your attention so you can consider if
further action is necessary.
Shortly after these pictures were taken I forwarded this information to Larry Diehl of the firm
Greenberg Farrow by email. I also followed this up with a phone call a few days later to confirm
that he had received the pictures. He was going to make contact with the appropriate personnel
concerning this issue. As of this date, I have not received any contact or follow up. I have spoken
with Tom Anderson and he has approved this letter to you concerning this matter.
Should you require any further information concerning this matter, please feel free to contact
Tom Anderson at 938-5262 (Office) of myself at 938-5280 (Office) or 358-5491 (Mobile)
Respectfully submitted,
Michael Matthews
Construction Inspector
City of Jacksonville
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Pictures Taken Mar 16 2004
The storm water outfall flared end section from the two catch basins on the Home Depot
detention pond is submerged in the receiving ditch.
Pictures Taken Mar 16 2004
Receiving ditch flow velocity behind the Home Depot Detention Pond
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Pictures Taken Mar 16 2004
The Home Depot Detention Pond outfall flared end is submerged in the receiving ditch and
causing back flow into the Home Depot Pond.
Pictures Taken Mar 16 2004
This picture shows some water turbulence where the back flow is occurring in the pond.
Pictures Taken Mar 16 2004
Sediment coming from the storm water system for Home Depot.
Pictures Taken Mar 16 2004
Sediment coming from the storm water system for Home Depot.
Pictures Taken Mar 16 2004
Sediment coming from the storm water system for Home Depot.
I
I
' GREENBERG FARROW ARCHITECTURE ENGINEERING DEVELOPMENT
1755 The Exchange, Atlanta, Georgia 30339
tel 770,303.1033 • fax 770.303.2333
www.gfeenbergfarrow. com
NEW YORK, New York
'
CHICAGD.Illinois
DALLAS, Texas
SOMERVILLE, New Jersey
'
LOS ANGELES, California
SAN FRANCISCO, California
1
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Dear Sirs:
Apri 1 11, 2003
Department of Environment and Natural
Resources Division of Water Quality
1617 Mail Service Center
Raleigh, N.C.
RE: Revised Stormwater Management Calculations
Home Depot — Jacksonville, NC
Included are two copies each of the revised Hydraulic Calculations for the Storm Water collection
system, sedimentation erosion control calculations for the enhanced Grass Swale and extended Dry
Detention Basin designed to reduce the total suspended solids (TSS) by eighty five percent.
All comments included in your letter, dated March 17, 2003, have been addressed.
The Pre and Post -developed drainage maps, the Grading and Drainage Plan, the Erosion Control Plan
and the Landscape Plans are included for reference.
Please review the above and give your approval and/or comments to us.
Sincerely,
GREENBERG FARROW ARCHITECTURE INC.
Esmai Ghadrdan, P.E. RE C'I V ED
APR 14 2003
DWQ
PROM # ���() lot
01 Lelrer 03.22.001:\Admit)\20N)1\2(N)l )(,19\LETEEK. I)ep).Of Emiron. And Natural Resources -Calculations 04-1I-M.Doc
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HYDRAULIC/HYDROLOGY STUDY
FOR:
THE HOME DEPOT
JACKSONVILLE, N.C.
LOCATED - WESTERN BLVD. & U.S. HWY. 17
GFA PROJECT NO. 20010629
PREPARED BY:
V,
r-
GREENBERG FARROW ARCHITECTURE ENGINEERING DEVELOPMENT
1755 The Exchange, Allanla, Georgia 30339
lel 770.303.1033 • fax 770.303.2333
www.greenbergfarrow.com
NEW yORK. New yolk
CHICAGO. Ihimis
DALLAS, Texas
SOMERSET, New Jersey
LOS ANGELES, Calllomia
BOSTON, Massachus%%
DATE PREPARED: 12.18.02
(REVISED 02.05.03)
(REVISED 04.07.03)
11
1
1 e
The Hydraulic design is based on the Ten -Year Storm for the location,
1 using the Rational Method. The Haestad Methods, Inc. Storm Cad
v1.5 (158) program was used on the computations.
1 The Erosion sedimentation control plan is designed per the North
Carolina Erosion and Sediment Control Planning and Design Manual,
1 as is the Water Quality Design.
The Water Quality Design uses a combined enhanced Grass Swale
1 and extended Dry Detention Pond. A sand filter under drain system
of thirteen hundred square feet is also incorporated to further protect
' the effluent control structure from being plugged by floating debris or
sediment.
1 The combined system is estimated to reduce total suspended solids by
eight -five percent.
1
1
1
1
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HYDROLOGY CALCULATIONS
Jacksonville, N.C.
Project No. 20010629
December 18, 2002
Pre -developed Q100 Q = C I A
Time of Concentration (See Figure 3-1) Tc = 21 minutes
C= (0.3) (3.62 AC _ 16.22) = 0.067
C = (0.9) 12.6 AC _ 16.22) =0.777
16.22AC 0.844 = Balanced "C"
Intensity for 21 minutes = 6.12
Drainage Basin = 16.22 acres
Q1 oo = (0.844) (6.12) (16.22)
Q100 = 84 cfs
Post-develoi2ed Q100
Time of Concentration (See Figure 3-1) Tc = 18.5 minutes
C = (0.3) (5.2 = 16.22) = 0.096
C=(0.9) 01.0=- 16.22)=0.610
16.2 0.706 = Balanced "C"
Intensity for 18.5 minutes = 6.6
Drainage Basin = 16.22 acres
Q1oo = (0.706) (6.6) (16.22) Q2 = (0.706) (3.0) (16.22)
Q100 = 76 cfs Q2 = 35 cfs
Grass Swale -
Q= A 1.486 R213 S112
n
Q = (28) (42.457) (1.4)213 (0.0548)
Q = 81 cfs (OK)
V = 1.486 R213 S112
n
V = (42.457) (1 A)213 (0,0548)
V = 2.9 fps (OK)
Length = 340 LF
Stone check dams one foot high to be constructed at eighty five foot intervals.
Control Structure —
Orifice size to drain the one inch first flush — one hour rainfall
(Detain 2.8 Days -- 67 Hours)
Volume: (1'712") (43,560 sq. ft.) 16.22 AC = 58,879 CF
Ure = 58,880 CIF
58,880 CIF - 4 days = 14,720 CF/day
14,720 CF/day _ 96Hrs = 153.3 CF/Hr.
14,720 CF/day = (1440 x 60) = 0.17 cfs
Water depth above orifice invert 1 foot H = 1
Try 3" Orifice (area = rr (1.5/12)2 = 0.049)
Q = CA (2) 32.2 x H C=0.6
Q = (0.6) (0.049) 64.4 (1)
Q=0.24cfs
4/7/03
Home Depot
Jacksonville, NC
Enhanced Grassed Swale 35%n TSS Removal
Extended Dry Detention Basin 50% TSS Removal
85% TSS Removal
Design Basis
Drainage Basin - 16.22 ac. — 68% Impervious
Pool Depth — 4.0 ft. with 3:1 side slopes
SA/SD - Coastal = 7.9
Pool Surface Area for 50% pollutant removal efficiency.
Area required = 16.22 acre of drainage basin x (7.9/100) x 43,560 = 55,817 sf.
Pool Volume
Surface Area = 44,000 sf. (actual)
Bottom Area = 39,780 sf. _ (59,000 cf)
Rate of Infow for 1 inch rainfall — first flush (60 minutes)
(43,560) 06.22ac) 0/12) /3,600 sec. = 16.3 cfs
Rate of Ouflow (67 hours)
58,880cf/ (67 hr. x 3,600 sec. per hour) = 0.24cfs
Minimum Sediment Storage
20% of 58,880 cf = 11,776 cf
Pool Weir — 100-year frequency storm (post -development)
Q = CIA
Q1oo = 0.706 x 6.6 x 16.22 = 76cfs
Wloo = 76cfs/(5)(0.5312)
Wloo= 45 If
Length of Weir — 5'
Width of Weir — 45'
Orifice Size
Q= ca x (square root of 2 gh) = 32.2
(Where c = 0.6, 2 = 0.049, g = 32.2, and h = 1')
Use 4-inch pipe x 1000 linear feet perforated PVC geotextile wrapped in gravel bed.
1AAdmin\2001 \20010029\20010629 Permanent Water Quality Pool IV 04 07_20o3.doc
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The Home Depot
'
Western Boulevard Q U. S. Hwy. 17
Jacksonville, North Carolina
'
Permanent Water Quality Pool
Operation and
Maintenance Agreement
'
DWQ Project — Onslow County
North Carolina Division of Water Quality
1
A Permanent Water Quality Pool is included on the property for the purpose of protecting the
water quality of the receiving creek during construction and permanently following completion of
'
construction. The pool is included on plans prepared by Greenberg Farrow Architecture and
dated November 15, 2002. They are identified as C-4.0, C-4.1, and C-4.2 of Greenberg Farrow
'
Architecture Project No. 200102629.
Following construction, stabilization of surface areas draining to the pool, and acceptance of the
twork
maintenance activities shall be performed as follows:
1. After every significant runoff producing rainfall event and at least monthly:
'
a. Inspect the water quality pool system for sediment accumulation, erosion, trash
accumulation, vegetated cover, and general condition.
tb.
Check and clear the filter bed and orifices of any obstructions such that draw -down
of the pool occurs within 2 to 5 days as designed.
'
2. Repair eroded areas immediately, re -seed as necessary to maintain good vegetative cover,
mow vegetative cover to maintain a maximum height of six inches, and remove trash as
'
needed.
3. Inspect and repair the collection system (i.e. catch basins, piping, swales, riprap, etc.)
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quarterly to maintain proper function.
4. Remove accumulated sediment from the water quality system semi-annual) or when
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depth is reduced to 75% of the original design depth. Removed sediment shall be
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disposed of in an appropriate manner and shall be handled in a manner that will not
adversely impact water quality (i.e. stockpiling near a wet detention basin or stream, etc.).
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The measuring device used to determine the sediment elevation shall be such that it will
give an accurate depth reading and not readily penetrate into accumulated sediments.
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When the permanent pool depth reads 28.3 feet at the water quality Control Structure the
sediment shall be removed.
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5. Remove cattails and other indigenous wetland plants when they cover 50% of the basin
surface. These plants shall be encouraged to grow.
6. If the basin must be drained for an emergency or to perform maintenance, the flushing of
sediment through the emergency drain shall be minimized to the maximum extent
practical.
' 7. All components of the water quality system shall be maintained in good working order.
' I acknowledge and agree by my signature below that I am responsible for the performance of
the seven maintenance procedures listed above. I agree to notify the Department of
Environment and Natural Resources Division of Water Quality of any problems with the
' system or prior to any changes to the system or responsible party.
I acknowledge and agree that included in any purchasers agreement will be provisions for the
' shared maintenance cost of the permanent Water Quality Pool that receives the surface storm
drainage from the lot or lots owned. The shared cost of the required maintenance on the Pool
shall be based on the area from each site contributing flow to the Pool and dividing it by the
total area flowing into the Pool from all sites. The percentage of shared cost is established as
' follows:
Shared Cost
Water Quality Pool
Lot A- 0.829% Lot .B- 0.171 %
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The shared cost for the required maintenance will be validated by copies of maintenance
notifications and invoices for expenses incurred.
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All parties will be notified when a site ownership changes and each site's pro-rata percentage
of maintenance cost will be published to the two site owners. The Maintenance Agreement
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has no expiration date, but shall be perpetual.
The ,Maintenance Agreement can be voided but only if: parties agree and the off -site
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property owner complies with watershed protection requirements by some other means; and
the governmental office having jurisdiction for watershed protection approves the new means
of watershed protection.
Print name:
Title: Jeff Israel
tor' 2aw "Unwi
5acesLoq Real Estate
erzy Rd.
Address: Atrinta, GA 30339 -
Phone: (770) 433-8211
Signature: '
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Date
VES Q 5 2003
a Notary Public for the State of
County of W-62,1,41- do�/,^hereby certify thatIII�
personally appeared before me this day of1-7 acknowledge the due execution of the foregoing water quality basin maintenance
requirements. Witness my hand and official seal,
SEAL
oaV,= County, Georgia.
fiotary puiC
B. 2003.
My commission expires My commission E=xofes Aug. t
Recorded:
Deed Book:
Page Number:
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