HomeMy WebLinkAboutSW8000416_COMPLIANCE_20010219STORMWATER DIVISION CODING SHEET
POST -CONSTRUCTION PERMITS
PERMIT NO.
SWer_,r�o�I�
DOC TYPE
❑ CURRENT PERMIT
❑ APPROVED PLANS
❑ HISTORICAL FILE
rCOMPLIANCE EVALUATION INSPECTION
DOC DATE
�GY7�Ddl�
YYYYMMDD i
Compliance Inspection Report
Permit SW8000416 Effective 02/19/01 Expiration
County Brunswick
Region Wilmington
Contact Person Donald L Safrit Title VP
Directions to Project
Type of Project State Stormwater- HD - Detention Pond
Drain Areas
On -Site Representative(s)
Related Permits
Inspection Date 04/0912009 Entry Time 04 15 PM
Primary Inspector David W Cox
Secondary Inspector(s)
Reason for Inspection Routine
Permit Inspection Type State Stormwater
Facility Status ❑ Compliant ❑ Not Compliant
Question Areas
Other
(See attachment summary)
Owner Ladane Williamson Company LLC
Project Strand River
Exlt Time 04 35 PM
Phone 910-579-0733
Phone 910-796-7215
Inspection Type Stormwater
Page 1
Permit SW8000416 Owner - Project Ladane Williamson Company LLC
Inspection Date 04/09/2009 Inspection Type Stormwater Reason for Visit Routine
Inspection Summary
Site not constructed as of 04109/2010 Part of the tract is permitted under San Rio Developer has no interest in
developing this tract under this permit Mr Ramsey has no interest in renewing
Other
Comment
Yes No NA NE
Page 2
SAND FILTER DESIGN
DATE
18-Aug-2000
PROJECT NAME
Strand River
DRAINAGE BASIN
Lumber
RECEIVING STREAM
Shallotte River
Index No
15-25-2-7 5
SITE AREA 706 58 acres
IMPERVIOUS AREA CALCULATION
1 BUILDINGS
�� PARKING/STREETS
�UO \�'5 CONCRETE, WALKS
04e OTHER
% IMPERVIOUS, 1=
BOTTOM OF FILTER
TOP OF SAND
OVERFLOW WEIR
REQUIRED VOLUME
540 cubic feet per acre of DA
Total volume required
PROVIDED VOLUME
DESIGN STORM
AVERAGE SURFACE AREA
DEPTH
VOLUME
TOTAL VOLUME PROVIDED
REQUIRED SURFACE AREA
PROVIDED SURFACE AREA
ORIFICE DESIGN
COMMENTS
FILENAME S IWQSISFILTER1000416-2 WK1
PROJECT# SW8 000416-2
Filter #2
REVIEWER arl
CLASS SC HQW
If ORW, is site within the 575' AEC?
DRAINAGE AREA 1$6437 SF
SQUARE FEET
31349 SQUARE FEET
SQUARE FEET
SQUARE FEET
TOTAL 31349SQUARE FEET
RV= 05+ 009 (1) fl.20
16 5 FEET MSL
18 FEET MSL
20 FEET MSL
Sediment Chamber Sand Filter
2311,20 CF 2311,20 CF
4622 405 CIF
Sediment Chamber Sand Filter
11N 11N
5459 SF 3824 SF
2490 IN 24 IN
10918 CIF 7648 CIF
18566 CF
360 SF 360 SF
467Q SF 2947 SF
PROPOSED ORIFICE DIAMETER 6 INCHES
AVERAGE HEAD 1.8 FEET
NUMBER OF ORIFICES 1.0 EACH
FLOWRATE FOR 24 HOURS 0 0885 CFS
FLOWRATE PROVIDED 1 3 CFS
Volume and drawdown are within Design Requirements
SAND FILTER DESIGN
DATE
18-Aug-2000
PROJECT NAME
Strand River
DRAINAGE BASIN
Lumber
RECEIVING STREAM
Shallotte River
Index No
15-25-2-7 5
SITE AREA 706 58 acres
IMPERVIOUS AREA CALCULATION
BUILDINGS
PARKING/WALKS
J CONCRETE
OTHER
% IMPERVIOUS, 1= 1 68 6%
BOTTOM OF FILTER
TOP OF SAND
OVERFLOW WEIR
REQUIRED VOLUME
540 cubic feet per acre of DA
Total volume required
PROVIDED VOLUME
DESIGN STORM
AVERAGE SURFACE AREA
DEPTH
VOLUME
TOTAL VOLUME PROVIDED
REQUIRED SURFACE AREA
PROVIDED SURFACE AREA
ORIFICE DESIGN
COMMENTS
FILENAME S IWQSISFILTER1000416-1 WK1
PROJECT# SW8 000416-1
Sand Filter #1
REVIEWER arl
CLASS SC HQW
If ORW, is site within the 575' AEC?
DRAINAGE AREA 153331 SF
38887 SQUARE FEET
60990 SQUARE FEET
5333 SQUARE FEET
SQUARE FEET
TOTAL j 105210 SQUARE FEET
RV= 05+ 009 (1) 0 67
22 5 FEET MSL
24 FEET MSL
26 FEET MSL
Sediment Chamber Sand Filter
1900,80.. CF I 1900.80 CF
3801595 CF
Sediment Chamber Sand Filter
1 IN 1 IN
2518 SF 2790 SF
24 00 IN 24 IN
5036 CF 5580 CF
10616 CF
�6O F 35 6F
F 220SF-
PROPOSED ORIFICE DIAMETER 6 inches
AVERAGE HEAD 0,9 FEET
NUMBER OF ORIFICES 1 0 EACH
FLOWRATE FOR 24 HOURS 0 0646 CFS
FLOWRATE PROVIDED 09 CFS
Volume and drawdown are within Design Requirements
DETENTION POND ANALYSIS
FILE NAME S IWQSIPOND1000416-1 WK1
PROJECT # SW8 000416-1 Pond 1
PROJECT NAME Strand River Pond 1
REVIEWER Lewis
DATE 23-Jan-2001
Receiving Stream Shallotte River & Sharron Cr Class SC HQW Chlorides nla
Drainage Basin Lumber Index No 15-25-2-7 5 15-25-2-9-2
Site Area 706 58 acres
Drainage Area 635916 00 �square feet needs to be verified
Area in Acres 1460 acres
IMPERVIOUS AREA Rational C-list beside
each stem below in El to E20
1 � Building 103689 00 square feet
C7� S `Pavement 229979 00 square feet
$ 5 0
SW 3249600 square feet
C Contingency 3005600 square feet
15 square feet
0 0 square feet
TOTAL 396220 001
Cc= 008
% IMPERVIOUS 62 30% Des Depth 3 5 TSS 90
SURFACE AREA CALCULATION
Rational ? ilf Rational is used put a
SA/DA 6 23% "1" in box E26 If not, leave it blank
Req SA _ 39622 square feet
Prov SA� 41393 square feet [From plan Contours]
VOLUME CALCULATION
Perm Pool Volume=
130723
Req Forebay Volume=
261446
Bottom
16 00 MSL
Provided Volume=
25898
Perm Pool
[, 20 00�MSL
Percent=
[ 20%
Design Pool
22 50 MSL
Design SA
48744 square feet
Des Storm 1 00
inches
Req Volume
32366 icubic feet
Rv= 061
Prov Volume
112671 Icubic feet
SA @ -
Elevation=
ORIFICE CALCULATION
Avg Head = 1 20
ft
Flow Q2, cfs
0 187 Area, in
512
Flow Q5, cfs
0 075 Area, in
205
No of Orifices 1 iDiameter, in I 2 50 � Area = 4 909 in
Q, cfs = 0 180 Drawdown = 2 1 jdays
COMMENTS
Surface Area and Volume are within Design Guidelines Orifice is too large
DETENTION POND ANALYSIS
FILE NAME S IWQSIPOND1000416-2 WK1
PROJECT # SW8 000416-2
PROJECT NAME Strand River Pond 2
REVIEWER
DATE 23-Jan-2001
Receiving Stream Shallotte River & Sharron Cr Class SC HQW Chlorides nla
Drainage Basin Lumber Index No 15-25-2-7 5 15-25-2-9-2
Site Area 706 58 acres
Drainage Area 269201 00 Isquare feet needs to be verified
Area in Acres 618 acres
IMPERVIOUS AREA
Rational C-list beside
each item below in E15 to E20
�l��
Buildings
3052300
square feet
�,
Pavement
8588500
square feet
Cartpath
196400
square feet
Contingency
1622800
square feet
square feet
0nGJ
square feet
TOTAL
1 134600 001
Cc= 010
% IMPERVIOUS
50 00%
Des Depth
30 TSS 90
SURFACE AREA CALCULATION
Rational ?
L If Rational is used put a
SAIDA
5 60%
"1" in box E26 If not, leave it blank
Req SA
15075
square feet
Prov SA
15991 Isquare feet
[From plan Contours]
VOLUME CALCULATION
Perm Pool Volume= 43315
Req Forebay Volume= 8663
Bottom
16 00
MSL
Provided Volume= 20221
Perm Pool
20 001MSL
Percent= ( 47%
Design Pool
22 00
MSL
Design SA
19720
square feet
Des Storm 1 00 inches
Req Volume
f 1217
cubic feet
Rv= 050
Prov Volume
35711
cubic feet
SA @ -
Elevation=
ORIFICE CALCULATION
Avg Head =
097
ft
Flow Q2, cfs
0 065
Area, in
1 97
Flow Q5, cfs
0 026
Area, in'
079
No of Orifices
1
IDiameter, in 1
1 501
Area = 1 767 in'
Q, cfs =
0 058
Drawdown = 2 2 jdays
COMMENTS
Surface Area and
Volume are within Design Guidelines
Orifice is too large
DETENTION POND ANALYSIS
FILE NAME S 1WQSIPOND1000416-3 WK1
PROJECT # SW8 000416-3
PROJECT NAME Strand River Pond 3
REVIEWER arl
DATE 23-Jan-2001
Receiving Stream Shallotte River & Sharron Cr Class SC HQW Chlorides nla
Drainage Basin Lumber _ Index No 15-25-2-7 5 15-25-2-9-2
Site Area 706 58 acres
Drainage Area 779288 00 (square feet needs to be verified
Area in Acres 1789 acres
IMPERVIOUS AREA Rational C-list beside
� each item below in E15 to E20
Building 139527 00 square feet
Parking 190432 00 square feet
Cart Path 863400 square feet
0� Contingency 3558700 square feet
square feet
square feet
TOTAL 1 374180 001 Cc= 010
% IMPERVIOUS 48 02% Des Depth 4 0 TSS 90
SURFACE AREA CALCULATION
Rational ? I_ IIf Rational is used put a
SAIDA 4 14% "1" in box E26 If not, leave it blank
Req SA 32272 square feet
Prov SA - 32414 square feet [From plan Contours]
VOLUME CALCULATION
Perm Pool Volume=
95935
Req Forebay Volume=
19187
Bottom
3 00 MSL
Provided Volume=
21975
Perm Pool 1
8 00 JMSL
Percent=
[ 23%
Design Pool
9 00 MSL
Design SA
35713 square feet
Des Storm 1 00
inches
Req Volume
L
31311 cubic feet
Rv= 048214062
Prov Volume
32707 cubic feet
SA @ _
Elevation=
LCU
Avg Head =
Flow Q2, cfs 0 181
Flow Q5, cfs 0 072
044 ft
Area, in' 819
Area, in 328
No of Orifices 1 (Diameter, in 3001 Area = 7 069 W
Q, cfs = 0 156 Drawdown = 2 3 Idays
COMMENTS
Surface Area, Volume and orifice are within Design Guidelines
DETENTION POND ANALYSIS
FILE NAME S IWQSIPOND1000416-4 WK1
PROJECT # SW8 000416-4
PROJECT NAME Strand River Pond 4
REVIEWER arl
DATE 23-Jan-2001
Receiving Stream Shallotte River & Sharron Cr Class SC HQW Chlorides nla
Drainage Basin Lumber Index No 15-25-2-7 5 15-25-2-9-2_
Site Area 706 58 acres
Drainage Area [, - 300564-00 Isquare feet needs to be verified
Area in Acres 690 acres
IMPERVIOUS AREA Rational C-list beside
each item below in E15 to E20
Budding 2847200 square feet
Parking 7409000 square feet
SW 373900 square feet
Cart Path 1146500 square feet
Contingency 3251600 square feet
square feet
TOTAL I _ 150282 001 Cc= 010
% IMPERVIOUS 50 00%
Des Depth
3 5 TSS 90
SURFACE AREA CALCULATION
Rational ?
If Rational is used put a
SAIDA
5 00%
1" in box E26 If not, leave it blank
Req SA
15028 square feet
Prov SA
15707 Isquare feet
[From plan Contours]
VOLUME CALCULATION
Perm Pool Volume= 38722
Req Forebay Volume= 77444
Bottom
4 00 MSL
Provided Volume= 8851
Perm Pool [
9 00JMSL
Percent= [ 23%
Design Pool
9 80 MSL
Design SA
17385 square feet
Des Storm 1 00 inches
Req Volume
12524 cubic feet
Rv= 05
Prov Volume
17507 cubic feet
SA @ 10 = 2848000
Elevation= 1000
ORIFICE CALCULATION
Avg Head = 0 36 ft
Flow Q2, cfs 0 072 Area, in 362
Flow Q5, cfs 0 029 Area, in2 1 45
No of Orifices 1 IDiameter, in 1 2 00 Area = 3 142 in2
Q, cfs = 0 063 Drawdown = 2 3 Nays
COMMENTS
Surface Area and Volume are within Design Guidelines Orifice is too large