SW8980124_COMPLIANCE_20120130

STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO. SW OIc�I Y
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLAN;
❑ HISTORICAL FILE
F,COMPLIANCE EVA
DOC DATE 420laj
YYYYMMDD

AMMA
NCDENR
North Carolina Department of Environment and
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P. E.
Governor Director
January 30, 2012
Mr. Lawrence A. Wilson Jr.
Wilson Family Realty, LLC
4925 New Centre Drive
Wilmington, NC 28403
Subject: NOTICE OF INSPECTION
Alleigh's Restaurant
Stormwater Permit No. SW8 980124
New Hanover County
Dear Mr. Wilson:
Natural Resources
Dee Freeman
Secretary
On September 23, 2011, David Cox of the Wilmington Regional Office of the Division of
Water Quality (DWQ) inspected Alleigh's Restaurant in New Hanover County to
determine compliance with Stormwater Management Permit Number SW8 980124
issued on May 6, 1998. DWQ file review and site inspection revealed that the site is not
in compliance with the terms and conditions of this permit. Please find a copy of the
completed form entitled "Compliance Inspection Report" attached to this letter, which
summarizes the findings of the recent inspection.
As indicated in the attached inspection report, the following deficiencies must be
resolved:
1. Repair the forebay berm.
2. Install a trash rack and unclog the orifice of the outlet structure
3. Remove the trash from the pond and trim up the vegetation on the side slopes of
the pond.
Please inform this Office in writing before March 2, 2012, of the specific actions that will
be undertaken and the time frame that will be required to correct the deficiencies.
Failure to provide the requested information, or to respond to this letter by the due date,
may initiate enforcement action including the assessment of civil penalties of up to
$25,000 per day. If a written plan of action is not submitted to this office by March 2,
2012 then DWQ staff will re-inspect.the site and issue a Notice of Violation if the listed
deficiencies have not been addressed.
Wilmington Regional Office
127 Cardinal Drive Extension, Wilmington, North Carolina 28405
Phone: [phone] FAX: [phone] DENR Assistance: 1-877-623-6748
Internet: www,ncwaterquality.org
One
Aturallff
hCarolina
An Equal Opportunity 1 Attiirmative Action Employer

State Stormwater Management
Permit # SW8 980124
Please be reminded that if an ownership change, or a name change or a mailing
address change has occurred, it is your responsibility to submit a completed and signed
Name/Ownership Change form to the Division. Please include the name, mailing
address and phone number of the party who is now responsible for this permit. If you
have any questions, please contact me at the Wilmington Regional Office, telephone
number [phone].
Sincerely,
Davi ox
Environmental Specialist
Enc: Compliance Inspection Report
GDSldwc: S:1WQS1StormwaterTermits & Projects11998\980124 HD12012 01
CEI deficient 980124
cc: Karen Higgins, WBS-CPU
WiRO Stormwater File
Georgette Scott
Page 2 of 2

.✓
Compliance Inspection Report
Permit: SW8980124 Effective: 05/06/98 Expiration: 05/06/08 Owner: Wilson Family Realty Inc
Project: Alleigh's Restaurant
County: New Hanover
Region: Wilmington
Contact Person: Lawrence A Wilson Title: Manager
Directions to Project:
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas: 1 - (Burnt Mill Creek) (03-06-23) { C;Sw)
On -Site Representative(s):
Related Permits:
Inspection Date: 09/2312011 Entry Time: 03:30 PM
Primary Inspector: David W Cox
Secondary inspector(s):
Reason for Inspection: Other
Permit Inspection Type: State Stormwater
Facility Status: ❑ Compliant ■ Not Compliant
Question Areas:
State Stormwater
(See attachment summary)
Exit Time: 04:30 PM
Phone:
Phone: [phone]
Inspection Type: Compliance Evaluation
Page: 1

u
Permit: SW8980124 Owner - Project: Wilson Family Realty Inc
Inspection Date: 09/2312011 Inspection Type: Compliance Evaluation Reason for Visit: Other
Inspection Summary:
In order for this pond to be deemed compliant please correct the fallowing:
1. Make the rapairs to the forebay berm.
2. Install trash rack and unclog orifice.
3. Remove trash and the trim the overgrown vegetation.
Are the SW measures constructed as per the approved plans? ■ ❑ ❑ ❑
Are the inlets located per the approved plans? ■ ❑ ❑ ❑
Are the outlet structures located per the approved plans? ❑ ■ ❑ ❑
Comment: Outlet structure was observed to be clogged and the trash rack was missing
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? ❑ ■ ❑ ❑
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑ ■
upon request?
Comment: Trash in pond and the growth on pond slopes due to lack of maintenance.
Site is not in business.
Page: 2

Compliance Inspection Report
Permit: SW8980124 Effective: 05/06/98 Expiration: 05/06/08 Owner: Wilson Family Realty Inc
Project: Alleigh's Restaurant
County: New Hanover
Region: Wilmington
Contact Person: Lawrence A Wilson Title: Manager
Directions to Project:
Type of Project: State Stormwater - HD - Detention Pond
Drain Areas: 1 - (Burnt Mill Creek) (03-06-23 ) ( C;Sw)
On -Site Representative(s):
Related Permits:
Inspection Date: 09123/2011 Entry Time: 03:30 PM
Primary Inspector: David W Cox
Secondary Inspector(s):
Reason for Inspection: Other
Permit Inspection Type: Slate Stormwater
Facility Status: [ Compliant ■ Not Compliant
Question Areas:
0 State Stormwater
(See attachment summary)
Exit Time: 04:30 PM
Phone:
Phone: [phone]
Inspection Type: Compliance Evaluation
Page: 1

Permit: Sw8980124 Owner - Project: Wilson Family Realty Inc
Inspection Date: 0912312011 inspection Type: Compliance Evaluation Reason for Visit: Other
Inspection Summary:
in order for this pond to be deemed compliant please correct the following:
1. Make the rapairs to the forebay berm.
2. Install trash rack and unclog orfice.
3. Remove trash and the trim the overgrown vegetation.
SW Measures Yes No NA N
Are the SW measures constructed as per the approved plans? ■ ❑ ❑ ❑
Are the inlets located per the approved plans? ■ ❑ ❑ ❑
Are the outlet structures located per the approved plans? ❑ ■ ❑ ❑
Comment: Outlet structure was observed to be clogged and the trash rack was missing
Operation and Maintenance Yes No NA NE
Are the SW measures being maintained and operated as per the permit requirements? ❑ ■ ❑ Cl
Are the SW BMP inspection and maintenance records complete and available for review or provided to DWQ ❑ ❑ ❑ ■
upon request?
Comment: Trash in pond and the growth on pond slopes due to lack of maintenance.
Site is not in business.
Page: 2

W A
r
4 `C
September 2, 2008
Mr. Lawrence A. Wilson, Jr.
Wilson Family Realty, LLC
Wilson's Restaurant
4925 New Centre Drive
Wilmington, NC 28403
NOTICE OF INSPECTION AND NON-COMPLIANCE
Alleigh's Restaurant
Stormwater Project No. SW8 980124
New Hanover County
Dear Mr. Wilson:
Michael F. Fasley, Governor
Willimn G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Colcen H. Sullins 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 August 6, 2008 to determine compliance with Stormwater Permit
Number SW8 980124 issued on May 6,1998.
Photos taken during the inspection are located in Section 4 of this report and a summary of the
required actions is noted under Section 5 of the report. Please inform this Office in writing
before October 3, 2008, 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 [phone].
Sincerely,
Christine Nelson
Environmental Engineer
ENB/can: S:IWQSISTORMWA-RINSPECT1980124.aug08
cc: C_Wilmington- , _ional-Office
Christine Nelson
One
NO thCarolina
Naturally
North Carolina Division of Water Quality 127 Cardinal Drive Extension Wilmington, NC 28405 Phone [phone] Customer Service
Wilmington Regional Office Internet: www.newaterquality.ore Pax [phone] 1-877.623-6748
An.Equal Opportunity/Affirmative Action Employer — 50% Recycled110% Post Consumer Paper

Lawrence A. Wilson, Jr.
September 2, 2008
Stormwater Permit No. SW8 980124
STORMWATER COMPLIANCE INSPECTION REPORT
1
2.
3
Project Name: Alleigh's Restaurant
Project Number: SW8 980124
Water Body: Smith Creek
Control Measure: Wet Detention Pond
Classification
Directions to site, address: 4925 New Centre Dr., Wilmington
Inspection Date:
Weather Conditions
Compliance Issues:
August 6, 2008
sunny, hot, humid
C, Sw
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 pond, the outlet/bypass structure relative elevations are per the
approved plan. (Must be verified via as -built survey if in question).
❑ ® 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.
❑ ® 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.
®❑ 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 road, cul-de-sac, parking lot and sidewalk widths are per the
approved plan.
❑ ® Required maintenance is being performed.
Page 2of8

Lawrence A. Wilson, Jr.
September 2, 2008
Stormwater Permit No. SW8 980124
4. Photos taken during the inspection on August 6, 2008-
There appears to be excess sediment
present in the forebay.
Remove muskrat from property to
prevent further damage to the pond side
slopes.
Three fountains are located within the
main pond area. Owner informed
inspectors that the fountains are likely '/z
HP each. At the time of the inspection,
only the 2 fountains closest to the
forebay were working.
Retaining wall was not installed along
the inlet side of the forebay
Page 3of8

Lawrence A. Wilson, Jr.
Date
A portion of the forebay berm has blown
out.
Several small wax myrtle trees were
observed growing on the pond side
slopes and vegetated shelf.
Additional decking installed in excess of
permit.
The trash rack for the pond outlet was
missing at the time of inspection.
Page 4 of 8

Lawrence A. Wilson, Jr.
Date
Stormwater Permit No. SW8 980124
PVC pipes appear to have been
installed to drain the patio area directly
into the main pond. Additionally, it
appears that the main roof drain from
the building drains directly into the main
pond. These inlets allow stormwater
runoff to bypass the forebay and short
circuit the pond.
The orifice was clogged/plugged with
debris at the time of the inspection.
Owner unclogged orifice during the
inspection.
5. Required Actions- (Explain each deficiency and what needs to be done to bring
the system back into compliance)
a. Remove trash and debris from the pond and outlet structure.
b. Remove invasive shrubs and trees from pond side slopes and vegetated
shelf.
c. Several holes and areas of slight erosion were noted on the pond side slopes
due to muskrat activities. Repair these areas as required in your permit.
d. There appeared to be an accumulation of sediment in the forebay. The
forebay and pond bottom levels should be checked and sediment should be
removed, if required, according to your permit.
e. The forebay berm appears to have been partially blown out and should be
repaired and returned to design specifications.
Page 5 of 8

Lawrence A. Wilson, Jr.
Date
Stormwater Permit No. SW8 980124
Section 11.4 of the stormwater permit issued May 6, 2008 prohibits the use of
decorative spray fountains in the pond. If the fountains are desired to remain
in the pond, the permit must be modified and the fountains located in
permitted stormwater pond must meet the provided fountain guidance.
Ponds with a permanent pool volume of less than 30,000 cubic feet are not
permitted to have fountains. Please submit documentation that the pond
fountains have been sized per the attached guidance.
g. Replace the missing outlet structure trash rack.
h. The retaining wall on the west side of the forebay was not constructed as
approved. Please submit a revision to the approved plans.
Additional inlets that were identified during the inspection were not included
with the approved plan. Please submit a revision or build per the approved
plans.
Please continue to perform the required maintenance as instructed in the
Operations and Maintenance Agreement.
k. The business name has changed since the issuance of the permit. Please
submit'a name/ownership change form to update the facility name listed on
the permit.
I. The stormwater permit expired on May 6, 2008 and no request for renewal
has been received to date.
Inspector: Pat Durrett and Christine Nelson
Water Quality/Wilmington Regional Officel(910) 796-7215
ENBlcan: S:IWQSISTORMWATERIINSPECT1980124.aug08
Page 6 of 8

Lawrence A. Wilson, Jr.
Date
Stormwater Permit No. SW8 980124
Alleigh's Restaurant
New Hanover County
Stormwater Proiect No. SW8 980124
Designer's Certification
I, , as a duly registered in
the State of North Carolina, having been authorized to observe (periodically 1 weekly I
full time) the construction of the project,
(Project)
for (Project Owner) hereby state that, to the
best of my abilities, due care and diligence was used in the observation of the project
construction such that the construction was observed to be built within substantial
compliance and intent of the approved plans and specifications.
Required Items to be checked for this certification to be considered complete are on
page 2 of this form.
Noted deviations from approved plans and specifications:
Signature
Registration Number
Date
SEAL
cc: NCDENR DWQ Regional Office
New Hanover County Building Inspector
Page 7 of 8

Lawrence A. Wilson, Jr.
Date
Stormwater Permit No. SW8 980124
Certification Requirements:
1. The drainage area to the system contains approximately the permitted
acreage.
2. The drainage area to the system contains no more than the permitted
amount of built -upon area.
3. All the built -upon area associated with the project is graded such that the
runoff drains to the system.
4. The outlet/bypass structure elevations are per the approved plan.
5. The outlet structure is located per the approved plans.
6. Trash rack is provided on the outlet/bypass structure.
7. All slopes are grassed with permanent vegetation.
8. Vegetated slopes are no steeper than 3:1.
9. The inlets are located per the approved plans and do not cause short-
circuiting of the system.
10. The permitted amounts of surface area and/or volume have been
provided.
11. Required drawdown devices are correctly sized per the approved plans.
12. All required design depths are provided.
13. All required parts of the system are provided, such as a vegetated shelf,
and a forebay.
14. The dimensions of the system, as shown on the approved plans, are
provided.
CC' NCDENR-DWQ
New Hanover County Building Inspector
Page 8 of 8

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Data for 97290 ALLEIGHS RESTAURANT Page 1
TEN YEAR 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 11 Dec 97
HydroCAD 4.53_ 000479 (c)__1986-1997 Applied Microcomputer Svstems_
SUBCATCHMENT 1
SITE AREA TO POND
PEAK= 24.79 CFS 9 12.08 HRS, VOLUME 1.30 AF
ACRES CN SCS TR-20 METHOD
3.34 95 IMPERVIOUS AREA TYPE III 24-HOUR
1.50 39 OPEN, SOIL GROUP A RAINFALL= 7.0 IN
4.84 78 SPAN- 11-15 HRS, dt=.02 HRS
Method Comment Tc (min)
TR-55 SHEET FLOW PAVEMENT 2.5
Smooth surfaces n=.011 L=150' P2=4.5 in $=.005
CIRCULAR CHANNEL PIPE TO POND 4.0
24" Diameter a=3.14 sq-ft Pw=6.3' r=.5'
s=.003 /' n=.013 V=3.94 fps L=940' Capacity=12.4 cfs
Total Length= 1090 ft Total Tc= 6.5
24
22
20
18
j 16
4-
u 14
12
3 10
Q
.J 8
Lj- 6
4
2
0m
SUSCATCHMENT 1 RUNOFF
SITE AREA TO POND
Ln m to m LO
N N M M
TIME Chours)
AREA= 4.64 AC
Tc= 6.5 MIN
CN= 76
SCS TR-20 METHDD
TYPE III 24-HOUR
RAINFALL= 7.0 IN
PEAK= 24.79 CF5
C 12.08 HRS
VOLUME= 1.30 AF

Data for 97290 ALLEIGHS RESTAURANT Page
TEN YEAR 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 21 Jan 98
HydroCAD 4.53 000479 (c) 1986-1997 Applied Microcomputer Systems
REACH 1 OUTLET PIPE TO SIGMON ROAD
Qin = 6.04 CFS @ 12.49 HRS, VOLUME= .95 AF
Qout= 6.04 CFS 0 12.49 HRS, VOLUME= .95 AF, ATTEN= 0k, LAG= .2 MIN
DEPTH END
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n= .013
LENGTH= 40 FT
SLOPE= .025 FT/FT
STOR-IND+TRANS METHOD
PEAK DEPTH= .61 FT
PEAK VELOCITY= 9.0 FPS
TRAVEL TIME = .1 MIN
SPAN= 11-15 HRS, dt=.02 HRS
REACH I INFLOW 8 OUTFLOW
OUTLET PIPE TO SIGMON ROAD
16" PIPE
n=.013 L=40' 5=.025
OR-IND+TRANS METHOD
in m to m in
TIME (hours)
UELOC€TY= 9 FPS
TRAVEL= .I MIN
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0.04 CFS
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Data for 97290 ALLEIGHS RESTAURANT Page 3
TEN YEAR 24-HOUR RAINFALL= 7.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 11 Dec 97
HydroCAD 4.53 000479 (c) 1986-1997 Applied Microcomputer Systems
POND 1
DETENTION POND
Qin = 24.79 CFS @ 12.08 HRS, VOLUME= 1.30 AF
Qout= 6.04 CFS @ 12.49 HRS, VOLUME= .95 AF, ATTEN= 76%, LAG= 24.1 MIN
ELEVATION AREA INC.STOR CUM.STOR STOR-IND METHOD
(FT) (SF) (CF) (CF) PEAK STORAGE = 30137 CF
36.0 12100 0 0 PEAK ELEVATION= 38.1 FT
37.0 14700 13400 13400 FLOOD ELEVATION= 39.0 FT
38.0 15000 14850 28250 START ELEVATION= 36.0 FT
39.0 15300 15150 43400 SPAN= 11-15 HRS, dt=.02 HRS
Tdet= 69 MIN (.94 AF)
## ROUTE INVERT _ OUTLET DEVIC_E_S
1 P 36.0' 1.31, ORIFICE/GRATE
Q=.6 PI r"2 SQR(2g) SQR(H-r)
2 P 36.9' 4' x .3' ORIFICE/GRATE
Q=•6 Width 2/3 SQR(29) (H-1.5 - [H-Height]"1.5)
3 P 38.2' 14' SHARP -CRESTED RECTANGULAR WEIR
Q=C L H-1.5 C=3.27+.4 H/2 L=Length-O(.1 H)
POND I INFLOW & OUTFLOW
DETENTION POND
24
22
STOR-IND METHOD
PEAK STOR= 32137 CF
29
PEAK E1_EU= 38.i FT
18
16
Din= 24.79 CFS
Daut= 6.34 CF5
14
LAG= 24.1 MIN
12
� 10
J 8
6-
4
1�
2
1 -----
r
Om
Ln m Ln m Ln m Ln m
Q' V Ln
TIME (hours)

Data for 97290 ALLEIGHS RESTAURANT Page 4
FIFTY YEAR 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 11 Dec 97
HydroCAD 4.53 000479 (c) 1986-1997 Applied Microcomputer Svstems
SUSCATCHMENT i
464DwlZ4$inCom!x th7
PEAK= 34.65 CFS @ 12.08 HRS, VOLUME= 1.81. AF
ACRES CN SCS TR-20 METHOD
3.34 95 IMPERVIOUS AREA TYPE III 24-HOUR
1.50 39 OPEN, SOIL GROUP A RAINFALL= 9.0 IN
4.84 78 SPAN= 11-15 HRS, dt=.02 HRS
MethodComment Tc (min)
TR-55 SHEET FLOW PAVEMENT 2.5
Smooth surfaces n=.011 L=150' P2=4.5 in s=.005
CIRCULAR CHANNEL PIPE TO POND 4.0
24" Diameter a=3.14 sq-ft Pw=6.3' r=.5'
s=.003 /' n=.013 V=3.94 fps- L=940' Capacity=12.4 cfs
Total Length= 1090 ft Total Tc= 6.5
34
32
30
28
26
r, 24
Ln 22
U 20
18
16
:3 }4
of 12
10
8
6
4
2
0m
SUBCATCNMENT I RUNOFF
SITE AREA TO POND
Ln In to m in
TIME (hours)
AREA= 4.84 AC
Tc= 6.5 MIN
CN= 78
SCS TR-20 METHOD
TYPE III 24-HOUR
RAINFALL.= 9.0 IN
PEAK= 34.65 CF5
e 12.38 HRS
VOLUME:: 1.81 AF
m Ln m
V V Ln

Data for 97290 ALLEIGHS RESTAURANT Pace
FIFTY YEAR 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 21 Jan 98
HydroCAD 4.53 000479 (c) 1986-1997 Applied Microcomputer Systems
REACH 1
OUTLET PIPE TO SIGMON ROAD
Qin = 15.41 CFS Q 12.28 HRS, VOLUME= 1.43 AF
Qout= 15.40 CFS @ 12.28 HRS, VOLUME= 1.43 AF, ATTEN= Ct, LAG= .1 MIN
DEPTH END
AREA
DISCH
(FT) (SO
-FT)
(CFS)
0.0
-0.0
0.00
.2
.1
.35
.3
.3
1.45
.5
.4
3.25
1.1
1.3
13.91
1.2
1.5
16.23
1.4
1.7
17.70
1.4
1.7
17.87
1.5
1.8
17.70
1.5
1.8
16.61
15
i4
13
12
it
'n 10
9
7
I1 6
O
J 5
3
2
i
Om
181, PIPE
n= .013
LENGTH= 40 FT
SLOPE= .025 FT/FT
STOR-IND+TRANS METHOD
PEAK DEPTH= 1.15 FT
PEAK VELOCITY= 10.7 FPS
TRAVEL TIME = .1 MIN
SPAN= 11-15 HRS, dt=.02 HRS
REACH I INFLOU & OUTFLOW
OUTLET PIPE TO SIGMON ROAD
16" PIPE
n=,013 L=40' S=.025
STOR-IND+TRANS METHOD
UELOCITY= 10.7 FPS
TRAUEL= .I MIN
Din= 15.41 CFS
Oout= 15.40 CFS
LAG= .1 MIN
Lr) m Ln m Ln
N N
TIME (hours)
m n m
v V Lf5

Data for 97290 ALLEIGHS RESTAURANT Page 6
FIFTY YEAR 24-HOUR RAINFALL= 9.0 IN
Prepared by ANDREW & KUSKE CONSULTING ENGINEERS, INC. 11 Dec 97
H droCAD 4.53 000479 c 1986-1997 Applied Microcomputer Systems
POND 1
DETENTION POND
Qin = 34.65 CFS Q 12.08 HRS, VOLUME= 1.81 AF
Qout= 15.41
CFS @ 12.28
HRS, VOLUME= 1.43 AF,
ATTEN= 56`>;, LAG=
12.0 MIN
ELEVATION
AREA
INC.STOR CUM.STOR
STOR-IND METHOD
(FT)
(SF)
(CF) (CF)
PEAK STORAGE =
36073
CF
36.0
12100
0 0
PEAK ELEVATION=
38.5
FT
37.0
14700
13400 13400
FLOOD ELEVATION=
39.0
FT
38.0
15000
14850 28250
START ELEVATION=
36.0
FT
39.0
15300
15150 43400
SPAN= 11-15 HRS,
dt=.02
HRS
Tdet= 59.6 MIN (1.43 AF)
# ROUTE
INVERT
OUTLET DEVICES
1 P
36.01 1.31,
ORIFICE/GRATE
Q=.6
PI r-2 SQR(2g) SQR(H-r)
2 P
36.9' 4' x
.3' ORIFICE/GRATE
Q=.6
Width 2/3 SQR(2g) (H-1.5
- [H-Height]^1.5)
3 P
38.2' 14,
SHARP -CRESTED RECTANGULAR
WEIR
Q=C L H- .5 C=3.27+.4 H/2 L=Length-O(.1 H)
POND 1 INFLOW & OUTFLOW
DETENTION POND
34
32
STOR-IND METHOD
30
PEAK STOR= 36073 CF
28
PEAK ELEV= 38.5 FT
26
24
Oin= 34.65 CFS
22
Oovt= 15.41 CFS
u
20
LAG= 12 MIN
,�
18
16
73
14
r
p
12
�
10
r
B
i `
6
2
em
m L m Ln m Ln m
TIME (hours)

NC:DDO�T�RepOft
Iv - YEAR
Pipe
-Node
Upstream
Downstream
Inlet
Area
(acres)
Inlet
TC
(min)
Inlet
Discharge
(cfs)
Total
CA
(acres)
-Ground-
Upstream
Downstream
(ft)
-HGL-
Upstream
Downstream
(ft)
-Slope-
Energy
Constructed
M
-Section-
Discharge
Capacity
(cfs)
-Section-
Shape
Size
Length
(ft)
Average
Velocity
(Sus)
P-9
1-9
0.33
10,00
1,68
0,26
39.00
37.84
0.13
1.681
Circular
93.00
2.13
1-8
39.00
37.72
0.22
2.15
12 inch
P-8
1-8
0.38
10.00
1,93
0.57
39.00
37.72
0.06
3.54
Circular
160.00
2.17
1-3
40.30
37.64
0.19
5.91
18 inch
P-7
1-7
0.38
10,00
1.93
0.30
41.00
38.09
0.33
1.93
Circular
157.00
3.22
1-4
41,00
37.73
0.70
3,88
12 inch
P-6
1-6
0.46
10.00
2.34
0.37
40.60
38.05
0,11
2.34
Circular
153.00
2.57
1-5
40.70
37.96
0.26
4.29
15 inch
P-5
1-5
0.38
10.00
1.93
0.67
40,70
37.96
0.10
4.15
Circular
275.00
2.81
1-4
41.00
37.73
0,18
5.82
18 inch
P-4
1-4
0.35
10.00
1.78
1,26
41.00
37.73
0.09
7,41
Circular
128.00
3.20
1-3
40.30
37.64
0.16
11.62
24 inch
P-3
1-3
0,60
10.00
3.05
2.30
40.30
37.64
0.15
13.33
Circular
119.00
4.49
1-2
40.10
37.48
0.17
21.86
30 inch
P-2
1-2
0.31
10.00
1.57
2.55
40.10
37.48
0.15
14.58
Circular
172.00
4.53
1-1
39.40
37.31
0.20
24.05
30 inch
P-1
1-1
0.49
10.00
2.49
2.94
39.40
37.31
0.18
16.50
Circular
85,00
4,12
Outlet
I
I
I
1
139.001
37.161
0.181
28.02
136 inch
P_rojg9c EEngirleer: LARRY,'SNEEDEN
StormCAD v1?0
551166fi P.age;;1"of..j

NqD B, po,
2S-YEAR
Pipe
-Node-
Upstream
Downstream
Inlet
Area
(acres)
Inlet
TC
(min)
Inlet
Discharge
(cfs)
Total
CA
(acres)
-Ground-
Upstream
Downstream
(ft)
-HGL-
Upstream
Downstream
(ft)
-Slope-
Energy
Constructed
M)
-Section-
Discharge
Capacity
(cfs)
-Section-
Shape
Size
Length
(ft)
Average
Velocity
(fis)
P-9
1-9
0.33
10.00
1.90
0.26
39.00
38.06
0.17
1.90
Circular
93.00
2.42
1-8
39.00
37.90
0.22
2,15
12 inch
P-8
1-8
0.38
10.00
2,18
0.57
39.00
37.90
0.08
4.01
Circular
160.00
2.30
1-3
40.30
37.77
0.19
5.91
18 inch
P-7
1-7
0.38
10.00
2.18
0.30
41.00
38.13
0.26
2.18
Circular
157.00
3.48
1-4
41,00
37.87
0.70
3.88
12 inch
P-6
1-6
0.46
10,00
2.64
0.37
40.60
38.25
0.10
2.64
Circular
153.00
2.41
1-5
40.70
38.14
0,26
4.29
15 inch
P-5
1-5
0.38
10,00
2.18
0.67
40,70
38.14
0.11
4.69
Circular
275A0
2.84
1-4
41.00
37.87
0.18
5.82
18 inch
P-4
1-4
0.35
10,00
2.01
1.26
41.00
37,87
0,09
8.38
Circular
128.00
3.27
1-3
40.30
37,77
0.16
11,62
24 inch
P-3
1-3
0.60
10.00
3.45
2.30
40.30
37.77
0.15
15.08
Circular
119.00
4,55
1-2
40.10
37.62
0,17
21.86
30 inch
P-2
1-2
0.31
10,00
1,78
2.55
40.10
37.62
0,15
16.48
Circular
172.00
4.64
1-1
39.40
37.44
0.20
24.05
30 inch
P-1
1-1
0.49
10.00
2.82
2.94
39.40
37.44
0.18
18.66
Circular
85.00
4.24
Outlet
I
I
I
1
139.001
37.291
0.18
28,02
36 inch
Project` Engineer;-LARRY!SNEEDEN
SITEWORKS:DESIGN;GROUP, StormCADs.v1i0
Brookside'Road._,�Watotr u_ry",ICTa06708i11SA "E203)755=1666 Page;,l-Iof;1

NnmRepo
.To -y6AR
Pipe
-Node-
Upstream
Downstream
Inlet
Area
(acres)
Inlet
TC
(min)
Inlet
Discharge
(cfs)
Total
CA
(acres)
-Ground-
Upstream
❑ownsiream
(ft)
-HGL-
Upstream
Downstream
(ft)
-Slope-
Energy
Constructed
(%)
-Section-
Discharge
Capacity
(cfs)
-Section-
Shape
Size
Length
(ft)
Average
Velocity
(fUs)
P-9
1-9
0.33
10.00
2.07
0.26
39.00
38.25
0.20
2.07
Circular
93.00
2,64
1-8
39.00
38.06
0.22
2.15
12 inch
P-8
1-8
0,36
10.00
2.39
0.57
39.00
38.06
0.10
4.39
Circular
160.00
2.48
1-3
40.30
37.89
0.19
5.91
18 inch
P-7
1-7
0.38
10.00
2.39
0.30
41.00
38.39
0.26
2.39
Circular
157.00
3.13
1-4
41.00
38.00
0,70
3,88
12 inch
P-6
1-6
0,46
10.00
2.89
0.37
40.60
38.57
0.12
2.89
Circular
153.00
2.35
1-5
40.70
38.38
0.26
4.29
15 inch
P-5
1-5
0.38
10.00
2.39
0.67
40.70
38.38
0.14
5.12
Circular
275.00
2.90
1-4
41.00
38.00
0.18
5.82
18 inch
P-4
1-4
0.35
10.00
2.20
1.26
41.00
38.00
0.10
9.16
Circular
128.00
3.32
1-3
40.30
37,89
0.16
11.62
24 inch
P-3
1-3
0.60
10.00
3.77
2.30
40.30
37.89
0.14
16.49
Circular
119.00
4.59
1-2
40.10
37.74
0.17
21.86
30 inch
P-2
1-2
0.31
10.00
1,95
2.55
40.10
37.74
0.15
18.03
Circular
172.00
4.72
1-1
39.40
37.55
0,20
24.05
30 inch
P-1
1-1
0.49
10.00
3.08
2.94
39.40
37.55
0.18
20A2
Circular
85.00
4.32
Outlet
39.00
37.40
1 0.18
28.02
1 36 inch
P.roject:l"nglne-LLARR_Y.SNEEDEN
StormCADw,1:0
55:166 Paged_' 1,
01/21/98 M52:59` M