20130576 Ver 1_More Info Received_20131030

October 18, 2013
NCDENR
Division of Water Quality
1628 Mail Service Center
Raleigh, North Carolina 27699 -1628
Attention: Mrs. Annette Lucas
Subject: Additional Information Requested Cn
Halifax County Sawmill J
DWR #13 -0576
N
Dear Mrs. Lucas: 1-
U
O
Please find below our responses to comments received from your office in a letter___
dated October 8, 2013. --
Comment #1: Please report the drainage area and impervious area in square feet, not ^T
acres.
Response #1: We have revised the .construction drawings and the Wet Detention Basin
Supplement to reflect the areas in "acres ".
Comment #2: Please provide drawdown calculations.
Response #2: Drawdown calculations are provided on the Wet Detention Basin
Supplement.
Comment #3: Please provide a more detailed planting plan that shows the locations,
sizes and spacing for aquatic shelf plants.
Response #3: We have provided an enlarged planting plan detail showing the spacing of
the shelf plants. Reference Plan Sheets 59 -B and 59 -C of 64 as attached.
Comment #4: The average depths of the ponds must be a minimum of three feet. Please
correct the design and resubmit.
Response #4: Labels have been added to Plan Sheets 57 and 58 of 64 to clarify the pond
depth.
W \NALC0\12108 \0ftice\DWQ Pennithng\Annette Lucas Ur 10- 18- 2013.doc

Also attached for your review in accordance with the comments above three (3)
copies of the following:
• Plan Sheets 58, 59, 59 -B and 59 -C of 64 reflecting the revisions per your
comments.
• Wet Detention Basin Supplement for Pond B and Pond C.
I trust this information will be sufficient for your continued review. Please let me
know if you have additional comments or require additional information.
Respectfully,
\�& cj��
E. Leo Green, III P.E., P.L.S.
CC: Mrs. Cathy Scott
Mr. Walter Cole
WAHALCO \12108 \Oliice\DWQ Permitting\Annette Lucas Ur 10- 18- 2013.doc

Permit No.
(to be provided by DWQ)
1
OCT 21 2013
�
�
HoM C
' `O�pF W ATF90G
A LT * >
O Y
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled ooA printed and submitted.
The Required Items Checklist (Part 111) must be printed, filled out and submitted along with all of ft required Information.
1. PROJECT INFORMATION
-
Project name
laausner Lumber Two
Contact person
Sean Hein
Phone number
252 -237 -5365
Date
7/26/2013
Drainage area number
Pond B
II: DESIGN INFORMATION
Site Characteristics
Drainage area
1,698,840 fe
Impervious area, post-development
1,393,920 fe
% impervious
82.05%
Design rainfall depth
1.5 in
Storage Volume: Non-SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' runoff volume
Pre-development 1 -yr, 24-hr runoff
Post-development 1 -yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the lyr 24hr stone peak flow required?
1 -yr, 24-hr rainfall depth
Rational C, pre-development
Rational C, post-development
Rainfall intensity: ) -yr, 24-hr storm
Pre- development 1 -yr, 24-hr peak flow
Post-development 1 -yr, 24-hr peak flow
Pre/Post 1-yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pool elevation
SHWT elevation (approx. at the pen. pool elevation)
Top of 1 Oft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment cleanout, top elevation (bottom of pond)
Sediment cleanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state - required temp. pool?
Elevation of the top of the additional volume
107,158 fe
162,904 to OK, volume provided Is equal to or in excess of volume required.
11
—ft
fe
ft
it'
N (Y or N)
2.8 in
74.00 (unitless)
85.00 (unNess)
1.50 In/hr OK
32.60 felsec
48.14 fe /sec
15.54 fe/sec
92.00 Intel
91.00 tmsl
x_91.00 frnsl
91.50 fmsi
90.50 fmsl
89.00 tmsl
88.00 fmsl
1.00 ft
N (Y or N)
fins)
•,•`��kA GAR ''011
`�OQ.oES iaQ�
tx
S� ,
022594 s
10 -1$ -I
Form SW401 -Wet Detention Basin-Rev.9-4 /18/12 Parts 16 11 Design Summary, Page 1 of 2

Permit No.
(to be provided by DWO)
II. DESIGN INFORMATION
Surface Areas
Area, temporary pool 106,206 fe
Area REQUIRED, permanent pool 57,081 ft
SAIDA ratio 3 36 (unitless)
Area PROVIDED, pemanent pool, Ap•„ p d
58,189 If OK
Area, bottom of 10ft vegetated shelf, Ate,
51,108 fl
Area, sediment cieanout, top elevation (bottom of pond), Aw_p„b
40,782 ft'
Volumes
3.36 Witless)
Volume, temporary pool
162,904 fe OK
Volume, permanent pool, V,,,,, pw
142,123 fe
Volume, forebay (sum of forebays H more than one forebay)
28,500 fe
Forebay % of permanent pool volume
20.1%% OK
SAIDA Table Data
Design TSS removal
%
Coastal SAIDA Table Used?
(Y or N)
Mountain/Piedmont SAIDA Table Used?
N (Y or N)
SAIDA ratio
3.36 Witless)
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 1(-2b)
Y (Y or N)
Volume, permanent pool, Vpe2pw
142,123 fe
Area provided, permanent pool, Ap,,,,_p,d
58,189 ft'
Average depth calculated
3.00 It OK
Average depth used in SAIDA, d•„ (Round to nearest 0.5ft)
3.0 It OK
Calculation option 2 used? (See Figure 10.2b)
N —(Y or N)
Area provided, permanent pool, A,._Pa
58,189 fe
Area, bottom of 1Oft vegetated shelf, AboL,a
51,108 le
Area, sediment cieanout, top elevation (bottom of pond), A 40,782 f?
'Depth' (distance blw bottom of 1 O shelf and top of sediment) 1.50 ft
Average depth calculated ft
Average depth used in SAIDA, d•„ (Round to down to nearest 0.5ft) It
Drewdown Calculations
Drawdown through orifice?
Diameter of orifice (ff circular)
Area of orifice (if- non-circular)
Coefficient of discharge (Co)
Driving head (H,)
Drewdown through weir?
Weir type
Coefficient of discharge (C•)
Length of weir (L)
Driving head (H)
Pre-development 1 -yr, 24-hr peak flow
Post-development 1 -yr, 24-hr peak flaw
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Additional Information
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow & orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build -out?
Drain mechanism for maintenance or emergencies is:
N (Y or N)
In
In?
(unitless)
ft
Y (Y or N)
SQUARE (unidess)
3.33 (unitless)
1 It
0.5 ft
32.60 f?/sec
48.14 felsec
1.26 felsec
2.00 days OK, draws down in 2d days. �0%. �jN CAR ♦ ♦ ♦ ♦•
3 :1 OK :•Q� �C A'
10:1 OK GI1(L
10.0 ft OK
5 :1 OK O .•
1.6:1 OK •�"�' •••'•�NGINEF.Q`.r••���.r
Y 1.0 ft or N) OK ,�, ♦��� •GRE��;.�'�,,
Y (Y or N) OK %I
Y (Y or N) OK
Y (Y or N) OK
8' DISCHARGE PIPE WITH GATE VALVE
Form SW401 -Wet Detention Basin -Rev 9-4/18/12 Parts I & 11 Design Summary. Page 2 of 2

Permit No.
(to be provided by DWQ)
V M- WA > at WA TF9O�
Hj M o c
STORMWATER MANAGEMENT PERMIT APPLICATION FORM
401 CERTIFICATION APPLICATION FORM
WET DETENTION BASIN SUPPLEMENT
This form must be filled out printed and submitted.
The Required Items ChecVd (Part 111) must be printed, filled out and submitted along with all of the required Information.
I. PROJECT INFORMATION
Project name
Klausner Lumber Two
Contact person
Sean Hein
Phone number
252 - 237 -5365
Date
.712612013
Drainage area number
Pond C
11, I3SIGN INF0ifMT10N
Site ChamcterMks
Drainage area
2,918,520 le
Impervious area, post-development
2,308,680 fe
% Impervious
79.10%
Design rainfall depth
1.5 In
Storage Volume: Non-SA Waters
Minimum volume required
Volume provided
Storage Volume: SA Waters
1.5' nmott volume
Pre-development 1 -yr, 24-hr runoff
Post -development 1 -yr, 24-hr runoff
Minimum volume required
Volume provided
Peak Flow Calculations
Is the pre/post control of the lyr 24hr storm peak flow required?
1 -yr, 24-hr rainfall depth
Rational C, pre - development
Rational C, post-development
Rainfall intensity: 1 -yr, 24-hr storm
Pre- development 1 -yr, 24-hr peak flow
Post -development 1-yr, 24-hr peak flow
Pre/Post 1 -yr, 24-hr peak flow control
Elevations
Temporary pool elevation
Permanent pod elevation
SHWT elevation (approx. at the pens. pod elevation)
Top of 1 Oft vegetated shelf elevation
Bottom of 10ft vegetated shelf elevation
Sediment deanout, top elevation (bottom of pond)
Sediment deanout, bottom elevation
Sediment storage provided
Is there additional volume stored above the state - required temp. pool?
Elevation of the top of the additional volume
202,722 it
289,664 ft3 OK, volume provided is equal to or in excess of volume required.
to
ft3
ft3
ft3
N_ (Y or N)
2.8 in
74.00 (unitiess)
85.00 (unitiess)
1.50 bnlhr OK
35.10 fe/sec
117.70 fe/sec
82.60 ft3 /sec
89.50 fmsl •••,NNSSSSSSiii&..
Woo tmel •�•�Z1c1 CARD •.
88.00 fmsl •.•'••(�Stl�
88.50 fmsl S� � 2V
87.50 fmsl ,?4� S
s S
86.00 fmsl :
85.00 bW Z 022 4
1.00 It ��%
N (Y or N) �i� •••••..• •
fmsl '''•;,� • ORE;�N N'
Form SW401 -Wet Detention Basin- Rev.94/1aH2 Parts 16 II. Design Summary, Page 7 of 2

11. DESIGN INFORMATION
Surface Areas
Area, temporary pool 187,910 fia
Area REQUIRED, permanent pool 58,370 fe
SAIDA ratio 2.00 (unitless)
Area PROVIDED, permanent pool, Ao,,,,,_pw 101,452 fe OK
Area, bottom of 10ft vegetated shelf, Ab,Ldw 92,205 fr
Area, sediment deanout, top elevation (bottom of pond), A 78,635 If
Volumes
Volume, temporary pool 289,664 fe
Volume, permanent pool, V,_„ m 181,183 fla
Volume, forebay (sum of forebays I more than one forebay) 36,237 le
Forebay % of permanent pool volume 20.0%%
SAIDA Table Data
Design TSS removal
Coastal SAIDA Table Used?
Mountain/Piedmont SAIDA Table Used?
SAIDA ratio
Average depth (used in SAIDA table):
Calculation option 1 used? (See Figure 10-2b)
Volume, permanent pool, V,, a
Area provided, permanent pool, Ar,,,,,d
Average depth calculated
Average depth used in SAIDA, d,,,, (Round to nearest 0.5ft)
Calculation option 2 used? (See Figure 10-2b)
Area provided, permanent pool, A m, d
Area, bottom of 10ft vegetated shelf, Atow
%
(Y or N)
N (Y or N)
2.00 (unitless)
Y (Y or N)
181,183 fe
101,452 fe
3.00 it
3.0 ft
N (Y or N)
101,452 fe
92,2051Y
Area, sediment deanout, top elevation (bottom of pond), A 78,635 fe
'Depth' (distance bM/ bottom of 10111 shelf and top of sediment) 1.50 it
Average depth calculated ft
Average depth used in SAIDA, d,,,, (Round to down to nearest 0.5ft) It
Drewdown Calculations
Drawdown through orifice?
Diameter of orifice (If circular)
Area of orifice (11-non-circular)
Coefficient of discharge (CD)
Driving head (Hj
Drawdown through weir?
Weir type
Coefficient of discharge (C•)
Length of weir (L)
Driving head (H)
Pre- development 1 -yr, 24-hr peak flow
Post -development 1 -yr, 24-hr peak flow
Storage volume discharge rate (through discharge orifice or weir)
Storage volume drawdown time
Addrdonal Infor natlon
Vegetated side slopes
Vegetated shelf slope
Vegetated shelf width
Length of flowpath to width ratio
Length to width ratio
Trash rack for overflow & orifice?
Freeboard provided
Vegetated filter provided?
Recorded drainage easement provided?
Capures all runoff at ultimate build-out?
Drain mechanism for maintenance or emergencies is:
N (Y or N)
in
in?
(unitless)
It
Y (Y or N)
SQUARE (unitless)
3.33 (unitless)
1 it
0.5 ft
35.10 fe /sec
117.70 felsec
1.26 f?1sec
OK
OK
OK
OK
Permit No
(to be provided by DWO)
200 days OK, draws down in 2.5 days.
J,••` CAR
; �
•
3 :1 OK ,���,j I%••;�y��i
10 :1 OK f 6—
10.0 ft OK
5 :1 OK SEAS.
1.6:1 OK Z Q s r
Y
(Y or N) OK
r 1.0 ft OK �i� ` 01NN�•'d ; rF
r Y _ (Y or N) OK �i�140 a jt �
Y (Y or N) OK �1111f111111ss��
Y (Y or N) OK
18' DISCHARGE PIPE WITH GATE VALVE
Form SW401 -Wet Detention Basin- Rev.9.4/18 /12
Parts I. a 11 Design Summary, Page 2 or 2

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91 f (3f /MINIMUM DEPTH)
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4'88,50
10:1 SUBMERGED VEGETATED
TOP OF DIKE EL. 95,00 PERIMETER SHELF
=L=L
= 11 I,=
10
0,
NORM. POOL EL. 91.00
FRAME MAY BE CAST
0 DIRECTLY INTO BOX
A
4801 oo
48))
0 (OPTIONAL)
4' x 4' "GABLE" TRASH RACK
"
(WELDED REBAR 4 SPACING
C TOP OF RISI
0 AND FRAME PRECAST INTO BOX) ELEV. 92.10
TOP OF RISER
JA
PRECAST OVERSIZE FOR
ELEV, 92.10
36"0 RCP INSTALLATION 12" WIDE WEIR ELEV. 91.00
C OVERSIZE 8" MODEL 101—C
C: AS FOR 4"0 (NO KNOCKOUTS) SLIDE GATE WITH 4' x 4' PRECAST RISER
0 HANDWHEEL OR
REQ'D DRAWDOWN
1 FOI JAI
$_ IF IF L_ j, 0 1
INSERTION *
36
Z 0 DISCHARGE PIPE
INVERT AT RISER 88.00
It
ca
0 i* 7'—O"x7'—O" CONCRETE SLAB 96%96" ANTI—SEEP
✓ COLLARS
(WITH 19" STONE IRASF)
0
_j 12nY - TYPIt _A1
No Scale
A
NORM. POOL EL, 91
BOTTOM EL. 88.50
(3- MINIMUM DEPTH)
�K_mmw EXIST. GRADE
11111V V
—4' x 4' PRECAST RISER
8" MODEL 101—C
SLIDE GATE WITH
HANDWHEEL OR
EQUAL
_ar
_xCw#,,T1 Fit
EX. 1' CONTOURS -ill- - - - -
EX. 5' CONTOURS 110
WETLANDS W®- W_ W®
EXISTING TREE LINE
EXISTING TREES
TO BE REMOVED
ZONE AE FEMA DESIGNATED 1% ANNUAL
CHANCE FLOOD LIMITS
2011 BORE LOCATION
2012 BORE LOCATION
2012 CPT LOCATION G
HOG WIRE FENCE -EF ------- 0-
CHAIN LINK FENCE - x - X
...........
..........
..........
...........
30' ZONE I BUFFER ..........
...........
..........
...........
..........
20' ZONE 2 BUFFER
CONSTRUCOMM 8Ev'0*'U=im%o=
CLEAR AND GRUB OUTLET STRUCTURE SITE.
ON THE CONSTRUCTION DRAWINGS AND SPECIFIED
4-
IN THE CONTRACT SPECIFICATIONS.
........ ----------- --------------- ---------
CLEAR AND GRUB ENTIRE POND SITE, REMOVING
............. ALL TREES, STUMPS, AND DECAYED MATERIAL.
............
INSTALL ALL TEMPORARY SEDIMENTATION AND
EROSION CONTROL MEASURES SURROUNDING POND
SITE AS SHOWN ON THE PLANS. AFTER EACH
RAINFALL EVENT, CHECK ALL TEMPORARY
rvNu MEODANG REOUIREMENTS SEDIMENT CONTROL MEASURES AND CORRECT AS
POND PERIMETER SHELF —BELOW PERMANENT POOL NECESSARY (POND TO BE USED AS TEMPORARY
SEDIMENT TRAP AND SHOULD BE CLEANED OUT
ACCEPTABLE WETLAND SPECIES TO BE PLANTED ON BEFORE POND IS PLACED INTO OPERATION).
6:1 SUBMERGED VEGETATED PERIMETER SHELF:
BROOMSEDGE (ANDROPOGON VIRGINICUS) REMOVE TOPSOIL FROM POND SITE AND PLACE IN
TYPHA SPP.) DESIGNATED BERM AREAS.
SOFT RUSH JUNCUS EFFESUS)
SMARTWEED POLYGONNUM SPP.) PROOF ROLL DIKE FOUNDATION SOILS,
SOFT—STEM BULRUSH SCIRPUS VALIDUS) UNDERCUTTING ALL UNSUITABLE MATERIAL AND
POND SIDE SLOPES — ABOVE PERMANENT POOL REPLACING WITH SUITABLE BACK FILL.
TALL FESCUE EXCAVATE POND AREA, CONSTRUCT AND BACK
PENSACOLA BAHIAGRASS FILL STORM DRAIN OUTFALL AS SHOWN ON THE
SERICEA LESPEDEZA CONSTRUCTION DRAWINGS.
KOBE LESPEDEZA
PROPERLY STABILIZE POND AREA TO PREVENT
EROSION OF DIKE SLOPES.
WATER OUALITY POND SUMMARY UPON COMPLETION OF PROJECT CONSTRUCTION
REMOVE ALL SEDIMENT FROM POND.
DRAINAGE AREA: 39.40 AC. LINE TOP AND SIDE OF POND AND DIKE SLOPES
POND INVERT: 88.00 WITH EXCELSIOR CURLED—WOOD MATTING,
RISER/BARREL INVERT: 88.50 06,
INVERT CULVERT AT OUTLET: 87.50 0 ?
J� 20,3 ONCE POND AREA IS PROPERLY STABILIZED AND
PERMANENT POOL: 91.00
APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT
4"0 ORIFICE ELEV,: 9too FENCING, SEDIMENT BASINS, ETC. AND SEED PER
TOP OF RISER ELEV.: 92.50 SPECIFICATIONS.
RISER BOX GEOMETRY.: 4' x 4' (GRATE/FRAME)
BARREL DIA.: 36"0 RCP NO EXISTING WETLANDS WILL BE DPRI14MBY
EMERGENCY SPILLWAY ELEV.: 93.00 POND CONSTRUCTION. OCT 18 z 200
TOP OF DIKE ELEV.: 95.50
Gom Eno"d% P.LLC.
REVISION DATE BY DATE: April 24, 2013
ADD POND DEPTH LABEL 10/12 RVM GRAPHIC SCALE CLIENT CODE: NALCO
JOB NUMBER: 12108
FIELD BOOK: XXX
STORNAWATERmft ot"00% NED CADFILE: . 12108-POND. dwg
POONN111% 0 1--1 0 21 50 100 ASCII FILE:
D fflomm' 1_ LAST MODIFIED: 17-Oct-13
SCALE IN FEET MODIFIED BY: RVM
SHEET NO. 57 OF 64
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10:1 SUBMERGED VEGETATED
TOP OF DIKE EL. 95,00 PERIMETER SHELF
=L=L
= 11 I,=
10
0,
NORM. POOL EL. 91.00
FRAME MAY BE CAST
0 DIRECTLY INTO BOX
A
4801 oo
48))
0 (OPTIONAL)
4' x 4' "GABLE" TRASH RACK
"
(WELDED REBAR 4 SPACING
C TOP OF RISI
0 AND FRAME PRECAST INTO BOX) ELEV. 92.10
TOP OF RISER
JA
PRECAST OVERSIZE FOR
ELEV, 92.10
36"0 RCP INSTALLATION 12" WIDE WEIR ELEV. 91.00
C OVERSIZE 8" MODEL 101—C
C: AS FOR 4"0 (NO KNOCKOUTS) SLIDE GATE WITH 4' x 4' PRECAST RISER
0 HANDWHEEL OR
REQ'D DRAWDOWN
1 FOI JAI
$_ IF IF L_ j, 0 1
INSERTION *
36
Z 0 DISCHARGE PIPE
INVERT AT RISER 88.00
It
ca
0 i* 7'—O"x7'—O" CONCRETE SLAB 96%96" ANTI—SEEP
✓ COLLARS
(WITH 19" STONE IRASF)
0
_j 12nY - TYPIt _A1
No Scale
A
NORM. POOL EL, 91
BOTTOM EL. 88.50
(3- MINIMUM DEPTH)
�K_mmw EXIST. GRADE
11111V V
—4' x 4' PRECAST RISER
8" MODEL 101—C
SLIDE GATE WITH
HANDWHEEL OR
EQUAL
_ar
_xCw#,,T1 Fit
EX. 1' CONTOURS -ill- - - - -
EX. 5' CONTOURS 110
WETLANDS W®- W_ W®
EXISTING TREE LINE
EXISTING TREES
TO BE REMOVED
ZONE AE FEMA DESIGNATED 1% ANNUAL
CHANCE FLOOD LIMITS
2011 BORE LOCATION
2012 BORE LOCATION
2012 CPT LOCATION G
HOG WIRE FENCE -EF ------- 0-
CHAIN LINK FENCE - x - X
...........
..........
..........
...........
30' ZONE I BUFFER ..........
...........
..........
...........
..........
20' ZONE 2 BUFFER
CONSTRUCOMM 8Ev'0*'U=im%o=
CLEAR AND GRUB OUTLET STRUCTURE SITE.
ON THE CONSTRUCTION DRAWINGS AND SPECIFIED
4-
IN THE CONTRACT SPECIFICATIONS.
........ ----------- --------------- ---------
CLEAR AND GRUB ENTIRE POND SITE, REMOVING
............. ALL TREES, STUMPS, AND DECAYED MATERIAL.
............
INSTALL ALL TEMPORARY SEDIMENTATION AND
EROSION CONTROL MEASURES SURROUNDING POND
SITE AS SHOWN ON THE PLANS. AFTER EACH
RAINFALL EVENT, CHECK ALL TEMPORARY
rvNu MEODANG REOUIREMENTS SEDIMENT CONTROL MEASURES AND CORRECT AS
POND PERIMETER SHELF —BELOW PERMANENT POOL NECESSARY (POND TO BE USED AS TEMPORARY
SEDIMENT TRAP AND SHOULD BE CLEANED OUT
ACCEPTABLE WETLAND SPECIES TO BE PLANTED ON BEFORE POND IS PLACED INTO OPERATION).
6:1 SUBMERGED VEGETATED PERIMETER SHELF:
BROOMSEDGE (ANDROPOGON VIRGINICUS) REMOVE TOPSOIL FROM POND SITE AND PLACE IN
TYPHA SPP.) DESIGNATED BERM AREAS.
SOFT RUSH JUNCUS EFFESUS)
SMARTWEED POLYGONNUM SPP.) PROOF ROLL DIKE FOUNDATION SOILS,
SOFT—STEM BULRUSH SCIRPUS VALIDUS) UNDERCUTTING ALL UNSUITABLE MATERIAL AND
POND SIDE SLOPES — ABOVE PERMANENT POOL REPLACING WITH SUITABLE BACK FILL.
TALL FESCUE EXCAVATE POND AREA, CONSTRUCT AND BACK
PENSACOLA BAHIAGRASS FILL STORM DRAIN OUTFALL AS SHOWN ON THE
SERICEA LESPEDEZA CONSTRUCTION DRAWINGS.
KOBE LESPEDEZA
PROPERLY STABILIZE POND AREA TO PREVENT
EROSION OF DIKE SLOPES.
WATER OUALITY POND SUMMARY UPON COMPLETION OF PROJECT CONSTRUCTION
REMOVE ALL SEDIMENT FROM POND.
DRAINAGE AREA: 39.40 AC. LINE TOP AND SIDE OF POND AND DIKE SLOPES
POND INVERT: 88.00 WITH EXCELSIOR CURLED—WOOD MATTING,
RISER/BARREL INVERT: 88.50 06,
INVERT CULVERT AT OUTLET: 87.50 0 ?
J� 20,3 ONCE POND AREA IS PROPERLY STABILIZED AND
PERMANENT POOL: 91.00
APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT
4"0 ORIFICE ELEV,: 9too FENCING, SEDIMENT BASINS, ETC. AND SEED PER
TOP OF RISER ELEV.: 92.50 SPECIFICATIONS.
RISER BOX GEOMETRY.: 4' x 4' (GRATE/FRAME)
BARREL DIA.: 36"0 RCP NO EXISTING WETLANDS WILL BE DPRI14MBY
EMERGENCY SPILLWAY ELEV.: 93.00 POND CONSTRUCTION. OCT 18 z 200
TOP OF DIKE ELEV.: 95.50
Gom Eno"d% P.LLC.
REVISION DATE BY DATE: April 24, 2013
ADD POND DEPTH LABEL 10/12 RVM GRAPHIC SCALE CLIENT CODE: NALCO
JOB NUMBER: 12108
FIELD BOOK: XXX
STORNAWATERmft ot"00% NED CADFILE: . 12108-POND. dwg
POONN111% 0 1--1 0 21 50 100 ASCII FILE:
D fflomm' 1_ LAST MODIFIED: 17-Oct-13
SCALE IN FEET MODIFIED BY: RVM
SHEET NO. 57 OF 64
47-01;

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DIRECTLY INTO BOX
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LL 217!_11 (WELDED REBAR 4" SPACING TOP OF RISE
° Aff E,41p, AND FRAME PRECAST INTO BOX) ELEV. 88.70
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42 "0 RCP INSTALLATION ELEV. 88.70
12" WIDE WEIR ELEV. 88.00
OVERSIZE w (NO KNOCKOUTS) 8" MODEL 101 —C
AS FOR 4"0 J / SLIDE GATE WITH 5' x 5' PRECAST RISER
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PENSACOLA BAHIAGRASS
RISER BOX GEOMETRY.:
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EMERGENCY SPILLWAY ELEV.:
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POND CONSTRUCTION,
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POND SECTION
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DIRECTLY INTO BOX
60" 60" (OPTIONAL)
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LL 217!_11 (WELDED REBAR 4" SPACING TOP OF RISE
° Aff E,41p, AND FRAME PRECAST INTO BOX) ELEV. 88.70
PRECAST OVERSIZE FOR TOP OF RISER
42 "0 RCP INSTALLATION ELEV. 88.70
12" WIDE WEIR ELEV. 88.00
OVERSIZE w (NO KNOCKOUTS) 8" MODEL 101 —C
AS FOR 4"0 J / SLIDE GATE WITH 5' x 5' PRECAST RISER
REQ'D DRAWDOWN / HANDWHEEL OR
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INSERTION •:
42 0 DISCHARGE PIPE INVERT AT RISER 85.00
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HALIFAX NC SAWMILL PROJEC"I"T
ENFIELD TOWNSHIP HALIFAX CO., NORTH CAROLINA
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BROOMSEDGE
ANDROPOGON VIRGINICUS)
85.00
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SMARTWEED
POLYGONNUM SPP.)
SCIRPUS VALIDUS)
POND SIDE SLOPES — ABOVE PERMANENT POOL•
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92.50
PENSACOLA BAHIAGRASS
RISER BOX GEOMETRY.:
SERICEA LESPEDEZA
KOBE LESPEDEZA
42 "0 RCP
pg-
EMERGENCY SPILLWAY ELEV.:
93,50
POND CONSTRUCTION,
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POND PERIMETER SHELF —
BELOW PERMANENT POOL
ACCEPTABLE WETLAND SPECIES
TO BE PLANTED ON
6:1 SUBMERGED VEGETATED PERIMETER SHELF:
BROOMSEDGE
ANDROPOGON VIRGINICUS)
85.00
TYPHA SPP.)
SOFT RUSH
JUNCUS EFFESUS)
SMARTWEED
POLYGONNUM SPP.)
SOFT —STEM BULRUSH
SCIRPUS VALIDUS)
POND SIDE SLOPES — ABOVE PERMANENT POOL•
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92.50
PENSACOLA BAHIAGRASS
RISER BOX GEOMETRY.:
SERICEA LESPEDEZA
KOBE LESPEDEZA
42 "0 RCP
NO EXISTING WETLANDS WILL BE DISTURBED BY
EMERGENCY SPILLWAY ELEV.:
93,50
POND CONSTRUCTION,
TOP OF DIKE ELEV.:
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TO BE PLANTED ON
6:1 SUBMERGED VEGETATED PERIMETER SHELF:
BROOMSEDGE
ANDROPOGON VIRGINICUS)
85.00
TYPHA SPP.)
SOFT RUSH
JUNCUS EFFESUS)
SMARTWEED
POLYGONNUM SPP.)
SOFT —STEM BULRUSH
SCIRPUS VALIDUS)
POND SIDE SLOPES — ABOVE PERMANENT POOL•
91.00
FENCING, SEDIMENT BASINS, ETC. AND SEED PER
TALL FESCUE
92.50
PENSACOLA BAHIAGRASS
RISER BOX GEOMETRY.:
SERICEA LESPEDEZA
KOBE LESPEDEZA
42 "0 RCP
-fir
LEGEND
EX. V CONTOURS
EX. 5' CONTOURS
WETLANDS ®W® W® W—
EXISTING TREE LINE —
EXISTING TREES
TO BE REMOVED
ZONE AE FEMA DESIGNATED 1% ANNUAL
CHANCE FLOOD LIMITS
2011 BORE LOCATION +
2012 BORE LOCATION
2012 CPT LOCATION
HOG WIRE FENCE
CHAIN LINK FENCE -- X X
30' ZONE 1 BUFFER :•:•:•:•:•:•::
20' ZONE 2 BUFFER
CLEAR AND GRUB OUTLET STRUCTURE SITE.
CONSTRUCT RISER /BARREL STRUCTURE AS SHOWN
ON THE CONSTRUCTION DRAWINGS AND SPECIFIED
IN THE CONTRACT SPECIFICATIONS.
CLEAR AND GRUB ENTIRE POND SITE, REMOVING
ALL TREES, STUMPS, AND DECAYED MATERIAL.
INSTALL ALL TEMPORARY SEDIMENTATION AND
EROSION CONTROL MEASURES SURROUNDING POND
SITE AS SHOWN ON THE PLANS. AFTER EACH
RAINFALL EVENT, CHECK ALL TEMPORARY
SEDIMENT CONTROL MEASURES AND CORRECT AS
NECESSARY (POND TO BE USED AS TEMPORARY
SEDIMENT TRAP AND SHOULD BE CLEANED OUT
BEFORE POND IS PLACED INTO OPERATION).
REMOVE TOPSOIL FROM POND SITE AND PLACE IN
DESIGNATED BERM AREAS.
PROOF ROLL DIKE FOUNDATION SOILS,
UNDERCUTTING ALL UNSUITABLE MATERIAL AND
REPLACING WITH SUITABLE BACK FILL.
EXCAVATE POND AREA, CONSTRUCT AND BACK
FILL STORM DRAIN OUTFALL AS SHOWN ON THE
CONSTRUCTION DRAWINGS.
PROPERLY STABILIZE POND AREA TO PREVENT
EROSION OF DIKE SLOPES.
UPO N COMPLETION OF PROJECT CONSTRUCTION
REMOVE ALL SEDIMENT FROM POND.
DRAINAGE AREA:
66.50 AC.
LINE TOP AND SIDE OF POND AND DIKE SLOPES
POND INVERT:
85.00
WITH EXCELSIOR CURLED -WOOD MATTING.
RISER /BARREL INVERT:
85.00
INVERT CULVERT AT OUTLET:
87.50
ONCE POND AREA IS PROPERLY STABILIZED AND
PERMANENT POOL:
91.00
APPROVED, REMOVE TEMPORARY DIVERSIONS, SILT
4"0 ORIFICE ELEV.:
91.00
FENCING, SEDIMENT BASINS, ETC. AND SEED PER
TOP OF RISER ELEV.:
92.50
SPECIFICATIONS.
RISER BOX GEOMETRY.:
5' x 5' (GRATE /FRAME)
BARREL DIA..
42 "0 RCP
NO EXISTING WETLANDS WILL BE DISTURBED BY
EMERGENCY SPILLWAY ELEV.:
93,50
POND CONSTRUCTION,
TOP OF DIKE ELEV.:
95.50
REVISION DATE BY DATE: April 24, 2013
ADD POND DEPTH LABEL 10/18/13 RVM GRAPHIC SCALE CLIENT CODE: HALCO
JOB NUMBER: 12108
L A W FIELD BOOK: XXX
tT URM AmmImENR PO'NrUm'
CADFILE: 12108 —PON D. dwg
0 25 50 loo ASCII FILE:
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p u NO L) I I AST MODIFIED: 18— Oct -13
It �J� G`i"AI r- IAI GI=GT MODIFIED BY: RVM

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CLEAR AND GRUB ENTIRE POND SITE, REMOVING ALL TREES, STUMPS, AND DECAYED MATERIAL,
INSTALL ALL TEMPORARY SEDIMENTATION AND EROSION CONTROL MEASURES SURROUNDING POND
SITE AS SHOWN ON THE PLANS. AFTER EACH RAINFALL EVENT, CHECK ALL TEM =ORARY
SEDIMENT CONTROL MEASURES AND CORRECT AS NECESSARY (POND TO BE USED AS
TEMPORARY SEDIMENT TRAP AND SHOULD BE CLEANED OUT BEFORE POND IS PLACED INTO
OPERATION).
REMOVE TOPSOIL FROM POND SITE AND PLACE IN DESIGNATED BERM AREAS,
PROOF ROLL DIKE FOUNDATION SOILS, UNDERCUTTING ALL UNSUITABLE MATERIAL AND REPLACING
WITH SUITABLE BACK FILL.
EXCAVATE POND AREA, CONSTRUCT AND BACK FILL STORM DRAIN OUTFALL AS 3,HOWN ON THE
CONSTRUCTION DRAWINGS,
PROPERLY STABILIZE POND AREA TO PREVENT EROSION OF DIKE SLOPES.
UPON COMPLETION OF PROJECT CONSTRUCTION REMOVE ALL SEDIMENT FROM PCBND.
LINE TOP AND SIDE OF POND AND DIKE SLOPES WITH EXCELSIOR CURLED —WOOD MATTING.
ONCE POND AREA IS PROPERLY STABILIZED AND APPROVED, REMOVE TEMPORAR- DIVERSIONS,
SILT FENCING, SEDIMENT BASINS, ETC. AND SEED PER SPECIFICATIONS.
NO EXISTING WETLANDS WILL BE DISTURBED BY POND CONSTRUCTION.
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--
PERMANENT SEEDING SCHEDULE (DAM EMBANKMENT)
SEEDING DATE
SEEDING MIXTURE
APPLICATION RATE
AUG 25 —OCT (BEST)
FEB —APR 15 (POSSIBLE)
TALL FESCUE
250 LBS /AC
SOIL AMENDMENTS
APPLY LIME AND FERTILIZER ACCORDING TO SOIL TEST, OR APPLY 4000 LBS /AC c�ROUND AGRICULTURAL
LIMESTONE AND 1000 LBS /AC 10 -10 -10 FERTILIZER.
MULCH
APPLY 4000 LBS /AC STRAW. ANCHOR STRAW BY TACKING WITH ASPHALT, NETTI'I G, OR A MULCH ANCHORING
TOOL, A DISK WITH BLADES SET NEARLY STRAIGHT CAN BE USED AS AN ANCHORING TOOL.
MAINTENANCE
INSPECT AND REPAIR MULCH FREQUENTLY, REFERTILIZE IN LATE WINTER OF THE FOLLOWING YEAR; USE SOIL
TEST OR APPLY 150 LBS /AC 10- 10 -10. MOW REGULARLY TO A HEIGHT OF 2 -4 ;INCHES.
NURSE PLANTS
BETWEEN MAY 1 AND AUG. 15 ADD 15 LBS /AC SUDANGRASS OR 10 LBS /AC GER'mIAN MILLET. BEFORE MAY 1
OR AFTER AUG 15 ADD 40 LBS /AC RYE GRASS (GRAIN).
NOTES:
1. PERMANENT SEEDING SCHEDUE IS FOR EXTERIOR SLOPES OF THE DAM AND IN"`ERIOR SLOPES OF THE DAM
(FILL EMBANKMENT) TO NAORMAL POOL ELEVATIONS,
2. THIS MIX IS USED FROM THE INSIDE TOP OF DAM TO DOWN STREAM TOE OF EMBANKMENT.
PLANTING INSTRUCTIONS
PLANT
SIZE
SPACING
INSTRUCTIONS
FOXTAIL
4 CUBIC INCH
24 "x24"
Optimum seedling depth Is 1/8 to 1/4 Inch
CONTAINER
RANDOMLY LY
and no deeper than % inch. Establish before
FOXTAIL
ALOPERCURUS
900
freezing temperatures or early spring.
BLUE FLAG IRIS
HOWELLII
24"x24"
Plant In spring min 45 to 60 cm between
BLUE FLAG IRIS
INDIVIDUAL PLANTS
RANDOMLY
plants. Thin out every three to five years.
ARROW ARUM
PELTANDRA
SPACED
Can be planted in fail by seed,
ARROW ARUM
VIRGINICA
24 "x24'
Plant by overseeding in groups 4 1'soil cover.
LIZARD TAIL
4 CUBIC INCH
CONTAINER
RANDOMLY
Individual plants may be used if available.
°
+
SPACED
LIZARD TAIL
4 CUBIC INCH
24 "x24'
Plant by overseeding in groups 4 1'soil cover,
CONTAINER
RANDOMLY
Individual plants may be used If available.
SPACED
NOTE: IF A RAINFALL EVENT HAS NOT OCCURED FOR 2 CONSECUTIVE DAYS
ALL PLANTINGS ON SHELF THAT ARE ABOVE PERMANENT POOL ELELVATION
SHALL BE WATERED FOR A PERIOD OF 30 DAYS AFTER PLANTING
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LEGEND
EX. 1' CONTOURS — — — — —>»- — — — —
EX. 5' CONTOURS 110
WETLANDS W® W_ W_
EXISTING TREE LINE -
EXISTING TREES
TO BE REMOVED
ZONE AE FEMA DESIGNATED 1% ANNUAL
CHANCE FLOOD LIMITS
2011 BORE LOCATION +
2012 BORE LOCATION
2012 CPT LOCATION
HOG WIRE FENCE
CHAIN LINK FENCE X X
30' ZONE 1 BUFFER :... • • °° •
20' ZONE 2 BUFFER
TYPICAL PLANTING AREA
DETAIL 1 ° =2'
PLANTING SIZE
4 CUBIC INCH CONTAINER (TYP.)
(INDIVIDUAL PLANT FOR BLUE
FLAG IRIS)
1'
PERMANENT POOL
PLANTING SCHEDULE
SYMBOL
COMMON
BOTANICAL
TOTAL
NAME
NAME
QUANTITY
FOXTAIL
ALOPERCURUS
900
HOWELLII
IIlil�lllll I 1 I I ICI
i i�l�lllll•I
.I.
BLUE FLAG IRIS
IRIS VIRGINICA
900
ARROW ARUM
PELTANDRA
900
VIRGINICA
° p °
LIZARD TAIL
SAURURUS
CERNUUS
880
°
+
GRASSED AREAS
REVISION DATE BY DATE: April 24, 2013
REVISE SEEDING RATE 5/09/1 SPH GRAPHIC SCALE CLIENT
NUMBER: 12108
ADD PLANTING DE 7iAIL 10/18/13 RVM FIELD BOOK: XXX
CADFILE: 12108— POND.dwg
0 15 30 60 ASCII FILE:
LAST MODIFIED: 18— Oct -13
SCALE IN FEET MODIFIED BY: RVM
SHEET NO. U9— OF 4
47 -017

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