20001293 Ver 1_Complete File_20001219

01/05/2001 10:49 FAX [phone] McRIM & CREED I
IA 003
NVNIM&CREED
5585 DILLARD ROAD
SUITE 117
RY, N.C. 27511
TEL: [phone]
F ; : (919).233-8031
FACSIMILE TRANSMITTAL
I
DESIGNATED RECIPIENT: Todd St. John FAX NO: 733-9959
COMPANY: NCDENR-Division of Water Q ity DATE: January 5, 2001
SENDER: David Kiker TIME:
NUMBER OF TRANSMISSION PAGES (Inclu ling this page): 4
i
PROJECT NUMBER 017240001 ?ROJECT NAME Wyeth-Lederle Vaccines Water Quality Pon
? THIS IS YOUR ORIGINAL! ? HARD COPY TO FOLLOW
COMMENTS: wNOTCORRECTLY7W VECiORPAGES FAULTY, PLEASE CALLSENDER AT91AW38001"
REMARKS: i
Here are the meeting minutes, and Imp rvious area summaries shown in plan view. I am
forwarding a color copy of the sheets fo your files. Please let me know if you need anything
else for your review. Thanks.
i
t
i
ATrE=CN
THE MFOFMATION CONTMED IN THIS FACSULE MESSAGE IS PFNiLZ_n D ,*Z CONFDENTMIL WO MATION INTENDED ONLY FOR THE USE OF THE INOMDYAL OR WMTY
NAMED ABOVE F THE REAOBG OF THIS MESSAGE IS NOT THE I RECIPIENT. OR THE EMPLOYEE OROR AGENT RESPONME TO DELIVER I<TO THE N MEE
RECIPIENT. YOU ARE HEREBY NOTIFIED THAT ANY CIRBEM>JAT<ON ISTbRUTION OR OOPYM OF THIS COMMNN' CATIDN IS STRICTLY PROHIBITED. F You HAVE RECEIVE[
IM COMMUNICATION N ERROR. PLEASE NDTIFY US BY TELEPHONE AID RETURN THE ORIGINAL WISSAGE TO US AT THE ABOVE ADDRESS VIA THE U.B. POSTAL SERVICE
WE WLLREMSURSEYOU FOR ANY COSTS NCUMMM
S:\1724V=A14-0x=Vx-dwq.doc I REV•' 0427`'
01/05/2001 10:49 FAX [phone] McRIM & CREED y 10004
y )
I
NORTH CAROLINA DIVISION OF WATER QUALITY (NC-DWQ)
WYETt"ERLE VACCINES
ME ETMG MINUTES
JANUARY 5.2001
The following were in attendance:
• Todd St. John- NC DWQ
• David Kiker - McKim & Creed 49ineers
k
The meeting was held at the NC-DW? Office and the following items were discussed:
• A December 22,1998 permit was issued by DWQ as a result of 2 road crossings over
jurisdictional waters of the U. S. ai determined by the US Army Corps of Engineers
(USAGE). This permit required tat a wet pond be constructed to offset the water
quality impacts the proposed roadjwould have.
• The existing pond (same location where we are constructing our pond) is dry and
wasn't constructed as proposed. I
• DWQ will require our pond to Twater qity for an area of imperviousness
that is larger than the recently pr sed areas plus the impervious areas that go
untreated from the roads that we roposed as part of the December 22, 1998 permit.
F
Project No. DWQ
Project Name: I Zy
L4
1
1
? C C.?

SUBMITTED DESIGN: REQUIRED DESIGN:
elevations status
Bottom of Basin (ft) 284
Permanent Pool (ft) 288 4 ft. depth ok
Temporary Pool (ft) 292.1 4.1 ft. depth ok

areas
Permanent Pool SA (sq ft) 26572 26373 sq. ft. ok
Drainage Area (ac) 25.1
Impervious Area (ac) 17.65 70.3 % -

volumes
Permanent Pool (cu ft) 66886
Temporary Pool (cu ft) 140530 62218 cu. ft. ok
Forebay (cu ft) 13809 20.6% ok
other parameters
SA/DA 0 2.41 -
Orifice Diameter (in) 3 0.34 cfs drawdown -
Design Rainfall (in) 1 4.8 day drawdown ok
Linear Interpolation of Correct SAIDA***
4 ft. Pe anent Pool Depth
% Im ervious S A from Table
Next Lowest 70 2.4
Project Impervious 70.3 2.41
Next Highest 80 2.78

1) "(?5 15
'0 1?
C, V
air: 1 9 ?non
v T
`? MC J4 W L , 4 LETTER OF TRANSMITTAL
DATE: December 19, 2000
TO: NCDENR-Division of Water Quality
4401 Reedy Creek Rd.
Raleigh, NC 27607
733-1786
ATTENTION: Mr. Todd St. John
PROJECT NO: 017240001 TASK NO: ENGR
RE: Wyeth-Lederle Vaccines- Sanford
Stormwater Management
Submittal PAGE 1 OF 1
DWQ Project #001293
VIA: PAGE 1 OF 1
WE ARE SENDING: ® Originals ® Prints ? Shop Drawings ? Samples
? Specifications ® Calculations Other -
Quantity Drawing No. Rev. Description Status
2 sets Sealed 12/19/00 Stormwater Management Plan and Pond Detail Sheet F
2 sets Narrative, Application/Checklist, Calculations & Stage-Storage Data F
1 Uninitialized 401 Wet Detention Basin Worksheet (an initialized copy will
be forwarded) F

Issue Status Code: A. Preliminary B. Fabrication Only C. For Information D. Bid
E. Construction F. For Review & Comments G. For Approval H. See Remarks
Action Status Code: 1. No Exceptions Taken 2. Make Corrections Noted 3. Other
4. Amend & Resubmit 5. Rejected - See Remarks
REMARKS: Todd, Thank you so much for you help so far on this project. Enclosed are the above
referenced items for your review. A sign O&M Plan will be forwarded to you by the end of the week.
5625 DILLARD ROAD, SUITE 117, CARY, NC 27511 919/233-8091 FAX [phone]-W31
cc: McKIM & CREED
Signed h'.J
David J. Kiker, E.I.
SA1 724\0001\1 0-Comm\tr121900-dwq.doc
Project No. DWQ (to be provided by DWQ)
00
DIVISION OF WATER QUALITY - 401 WET DETENTION BASIN WORKSHEET
DWO khAater Management Plan Review:
complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement. An incomplete submittal package will result in a request for additional
information and will substantially delay final review and approval of the project.
1. PROJECT INFORMATION (please complete the following information):
Project Name : Wyeth-Lederle Vaccines
Contact Person: David Kiker. E.I. Phone Number: ( 919 ) 233-8091
For projects with multiple basins, specify which basin this worksheet applies to:Only One Basin Present
Basin Bottom Elevation 284.00 ft.
Permanent Pool Elevation 288.00 ft.
Temporary Pool Elevation 292.10 ft.

Permanent Pool Surface Area 26.572. sq. ft. (water surface area at permanent pool elevation)
Drainage Area 25.10 ac. (on-site and off-site drainage to the basin)
Impervious Area 17.65 ac. (on-site and off-site drainage to the basin)

Permanent Pool Volume 66.886 cu. ft. (combined volume of main basin and forebay)
Temporary Pool Volume 140.530 cu. ft. (volume detained on top of the permanent pool)
Forebay Volume 13.809 cu. ft. (volume required = 0.20 x temp pool volume)

SA/DA used 2.40 (surface area to drainage area ratio)
Diameter of Orifice 3 in. (draw down orifice diameter)
II. REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per the Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Resources, November 1995) and Administrative Code
Section: 15 A NCAC 2H .1008. Initial in the space provided to indicate the following design requirements have
been met and supporting documentation is attached. If a requirement has not been met, attach an explanation of
why.
Applicants Initials
bi The temporary pool controls runoff from the 1 inch storm event.
X t The basin length to width ratio is greater than 3:1.
Wk The basin side slopes are no steeper than 3:1.
?1?'- A submerged and vegetated perimeter shelf at less than 6:1 is provided.
Vegetation to the permanent pool elevation is specified.
?lK An emergency drain is provided to drain the. basin.
The permanent pool depth is between 3 and 6 feet (required minimum of 3 feet).
WKThe temporary pool draws down in 2 to 5 days. ?erftvtC 4 aWl
b3(c The forebay volume is approximately equal to 20% of the tot asin volume.
t'dc Sediment storage is provided in the permanent pool.
&_X Access is provided for maintenance.
ASK A minimum 30-foot vegetative filter is provided at the outlet.
A site specific operation and maintenance (O&M) plan is provided. (Wal 6e ;o1w4ej )
A vegetation management/mowing schedule is provided in the O&M plan. (.?
Semi-annual inspections are specified in the O&M plan. (" to )
A debris check is specified in the O&M plan to be performed after every storm event.
A specific sediment clean-out benchmark is listed (elevation or depth) in O&M plan.
A responsible party is designated in the O&M plan.
FORM SWG100 09/97 Page 1 of 1

WYETH-LEDERLE VACCINES
SEDIMENT/ EROSION CONTROL
& BMP POND DESIGN
SUBMITTAL
Prepared For:
NCDENR-Land Quality Section
December 2000
?y`?j% t}911 B16 p
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CREED
McKim & Creed, P.A.
5625 Dillard Road, Suite 117
Cary, NC 27511
[phone]
Introduction
The purpose of this project is to construct a large industrial building which will be a connection
to the existing laboratory building. This project has impacted existing wetlands and as a
condition to the December 6, 2000 approval from DWQ (DWQ Project # 001293) a Best
Management Practice (BMP) pond is proposed to remove 85% of the TSS. This narrative and
calculations, and plans support the design of the BMP pond and associated erosion control
measures.
Site Description
The site is located in Sanford, North Carolina at the Wyeth-Lederle Vaccine Laboratories. The
existing site is heavily wooded with wetlands nearly bisecting the proposed site. The existing
drainage pattern for the site is to the south and western portion of the site. At the downstream
limit of the project is an existing pond and riser that will be replaced with a larger pond and new
riser/barrel configuration.
Erosion Control Measures
Approximately 13 acres of land will be disturbed on this site for excavation of the building and
parking lot. The natural drainage pattern for this site is for water to flow from northeast to
southwest, towards the existing detention pond. Existing wetlands on site are in the process of
being permitted for filling. Erosion control measures will keep all sediment and silt out of the
existing wetlands located downstream of the existing (and proposed) pond. This will be done
through the use of a construction entrance, silt fences, proposed BMP pond, and tree protection
fencing. These measures have been designed to maintain this flow pattern during construction
to prevent sediment from affecting the adjoining lands and the existing wetlands.
A BMP pond is proposed downstream of the access road that will include erosion control
measures to clean water in the vicinity of the pond. This pond will enlarge the existing pond to
accept the first inch of rainfall that falls within the drainage area. In addition, silt fence is
proposed around the perimeter of the pond (for areas not draining to the pond).
Design Requirements
The following design requirements (taken from the NCDENR Stormwater Best Management
Practices manual, dated April 1999) were used to size the proposed BMP pond:
• Permanent Pool- Table 1.1 using a pond depth of 4 feet, and a 70% impervious; with an
assumed buildout of the site
• Forebay sized to approximately 20% of the permanent pool volume
• Temporary pool volume sized for the 1 sc inch of rainfall (assuming a 70%
imperviousness)
• A 3 inch orifice was selected to detain the temporary volume for 2-5 days
• A berm was added to the center of the pond to achieve the 3:1 length to width ratio
• An emergency drain added to allow for draining of pond
CALCULATION
PROJECT ?A1 ?e Ilnr l ?6S PROJ. NO.
CLIENT DATE IZ-off-m
DES. BY 5,
SUBJECT I,????r ?u<(?f? atic? Lhlrs
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3. General
a. Basin shape should minimize dead storage areas and short circuiting. Length to width
ratios should be 3° 1 or greater. (Barfield, et al., 1981, pp. 426-429; Florida DEP, 1982,
pg. 6-289).
b. If the basin is used as a sediment trap during construction, all sediment deposited during
construction must be removed before normal operation begins.
C. Aquatic vegetation.should be included for a wetland type detention basin (Maryland
DNR, March 1987; Schueler, 1987, Chapter 4 and 9). A minimum ten foot wide shallow
sloped shelf is needed at the edge of the basin for safety and to provide appropriate
conditions for aquatic vegetation (Schueler, 1987). This shelf should be sloped 6:1 or
flatter and extend to a depth of 2 feet below the surface of the permanent pool (Shaver
and Maxted, DNREC, 1994). A list of suitable wetland species and propagation
techniques are provided in Schueler (1987) and Maryland DNR (1987).
d. An emergency drain (with a pipe sized to drain the pond in less than 24 hours) should be
installed in all ponds to allow access for riser repairs and sediment removal. (Schueler,
1987).
Table 1.1 Surface Area to Drainage Area. Ratio For Permanent Pool Sizing For 85% Pollutant
Removal Efficiency in the Piedmont
% Impervious Permanent Pool Denth (feet)
Cover 3.0 4.0 5.0 6.0 7.0 8.0 9.0
10 0-59 0.49 0-43 0-35 0-31 0
29 Q
?6
20 0.97 0.79 0.70 0.59 0.51 .
0.46 -
0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 •0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Notes: Numbers given in the body of the table are given in percentages.
Coastal SA/DA ratios can be obtained from the local'DWQ Regional Office.
5
CALCULATION
PROJECT Luye`(t?C Ui PROJ. NO.
CLIENT ll1 \ DATE 12-11-66
SUBJECT ?U?1cf OU??+?b f'ync? (41cs DES. BY bsK
CHK. BY
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v,MCM M &CREED
HEADQUARTERS 800-743-5557 • www.mckimcreed.com
CALCULATION
PROJECT 0i ti PROJ. NO.
CLIENT DATE 12-liQ0
SUBJECT bo ItrtLh zwll4 DES. BY Y,
CHK. BY
v MCIM4&CREED
v
HEADQuARTERs 800-743-5557 • www.mckimcreed.com
CALCULATION
PROJECT Wv ffr\ PROJ. NO.
CLIENT DATE M-1260
SUBJECT QU^1ttYqr11 es DES. BY h_
CHK, BY
A MCKIM&CREED
v
HEADQUARTERS 800-743-5557 • www,mckimcreed.com

, NC
Storm Outlet Structure
FES No.= FES-1
Pipe Dia= 30 in
Q10 = 45.00 cfs
Qfull = 45.00, cfs
Vfull = 9.50 fps
From Fig. 8.06.b.1:
From Fig. 8.06.b.2:
Zone
D50
DMAx
Riprap Class
Apron Thickness
Apron,Length
Apron Width = 3xDia
Selected Apron Width
DATE DESIGN PHASE
12-12-00 PRELIM / X /
PROJECT NO CONSTR
017240001 REVISION
BY RECORD
DJK OTHER
CHECKED BY (SPECIFY)
MM
Q10/Qfull = 1.00
V/Vfull = 1.14
V = 10.8 fps
2
= 8 in
= 12 in
= B
= 18 in
= 15.0 ft
= 7.5 ft (required)
= 8 ft
s:\0910\0121\20-tech\OUTLET-DISSIPATER.xis LATEST REVISION: 12112/00 11:25 AM
PAGE 1 OF 1

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01/02/2001 18:05 FAX [phone] McHIM & CREED
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5625 DILLARD RPAD
SUITE 117,
CARY, N.C. 27 ` 11
TEL: [phone]
FAX: [phone]
r
FACSIMILE T
DESIGNATED RECIPIENT: Todd St. John
COMPANY: NCDENR-Division of Water Quality
SENDER: David Kiker
NSMITTAL
FAX NO: 733-9959
imUU1
DATE: January 2, 2001
TIME:
NUMBER OF TRANSMISSION PAGES (Including this p
PROJECT NUMBER 017240001 PROJECT
2
Wyeth-Lederie Vaccines Water Quality Pond
? THIS IS YOUR ORIGINAL I ? HARD COPY TO FOLLOW
COMMENTS: ' ' iF NOT CORRECTLY RECEIVED OR PAGES FAULT', PLEASE CALL SENDER AT 91&1233-Ml "
REMARKS:
Here are the revised ON Plan for the pond (signed) d an updated 401 Wet Detention Basin
Worksheet (completed to reflect signed ON Plan). ease lei me know if you need anything
else for your review. Thanks. I
ATTENTION
THE INFORMATION CONTAINED IN THE FACSIME MESSAGE IS PRIVILEGED AND CONFIDENTUIL TON MENDED ONLY FOR THE USE OF THE INDIVIDUAL OR ENTRY
NAMED ABOVE IF THE READER OF THIS MESSAGE 6 NOT THE INTENDED RECIPIENT. OR THE OFIOR AGENT RESPONSIBLE TO DELIVER IT TO THE INTENDED
RECIPIENT, YOU ARE HERESY NOTIFIED THAT ANY DISSEMINATION, DISTRIBUTION OR COPYW3 THIS COMMUNICATION IS STRICTLY PROHIBITED IF YOU HAVE RECEIVED
THIS COMMUNICATION IN ERROR, PLEASE NOTIFY US BY TELEPHONE AND RETURN THE OR" MESSAGE TO US AT THE ABOVE ADDRESS VIA THE U.S. POSTAL SERVICE.
WE WILIRENIIBURSE YOU FOR ANY COSTS INCURRED.
SA172410001\104wWVx4".doc
REV. • 042795
01/02/2001 18:05 FAX [phone] McKIM & CREED IM002
i
Project No. DW i (to be provided by DWQ)
DIVISION OF WATER QUALITY - 401 WET;DETENTION BASIN WORKSHEET
DWO Stormwater Management Plan Review: '
A complete stormwater management plan submittal includes a wet detention basin worksheet for each basin,
design calculations, plans and specifications showing all basin and outlet structure details, and a fully executed
operation and maintenance agreement. An incomplete submittal package will result in a request for additional
information and will substantially delay final review and apprpval of the project.
1. PROJECT INFORMATION (please complete the following information):
Project Name : W eth-Lederle Vaccines
Contact Person: David Kiker. E.I. Ph ne Number. ( 919 ) 233-8091
For projects with multiple basins, specify which basin this wT ksheet applies to:Q* One Basin Present
Basin Bottom Elevation 284.00 &
Permanent Pool Elevation 288.00 ft.
Temporary Pool Elevation 292.10 ft.
t
Permanent Pool Surface Area 26.572 sq. ft. (w?ter surface area at permanent pool elevation)
Drainage Area 25.10 ac. (1-site and off-site drainage to the basin)
Impervious Area 17.65 ac. (o mite and off-site drainage to the basin)
V
Permanent Pool Volume 66.886 cu. ft. (c ined volume of main basin and forebay)
Temporary Pool Volume 140.530 cu. ft. (v riluumne e detained on top of the permanent pool)
Forebay Volume 13.809 cu. ft. (v required = 0.20 x temp pool volume)
SA/DA used 2.40 4face area to drainage area ratio)
Diameter of Orifice 3 in. down orifice diameter)
II- REQUIRED ITEMS CHECKLIST
The following checklist outlines design requirements per Stormwater Best Management Practices manual
(N.C. Department of Environment, Health and Natural Re urces, November 1995) and Administrative Code
Section: 15 A NCAC 2H. 1008. Initial in the space provided o indicate the following design requirements have
been met and supporting documentation is attached. If a regtrement has not been met, attach an explanation of
why. I
Applicants Initials
bi The temporary pool controls runoff from t
?k The basin length to width ratio is greater t
The basin side slopes are !no steeper than
A submerged and vegetated perimeter she.
wcc Vegetation to the permanent pool elevatio
An emergency drain is provided to drain t]
The permanent pool depth is between 3 at
b;L The temporary pool draws down in 2 to 5
tk The forebay volume is approximately equ
Sediment storage is provided in the perms
?k Access is provided for maintenance.
U A minimum 30-foot vegetative filter is pre
bit-_ A site specific operation and maintenance
lkk A vegetation management/mowing scheme
jy_Semi-annual inspections are specified in t
?1fi` A debris check is specified in the O&M p
A specific sediment clear;-out benchmark
A responsible party is designated in the O
FORM SWG200 09/97 Page 1 of
1 inch storm event.
13:1.
1.
at less than 6:1 is provided
is specified.
basin.
6 feet (required minimum of 3 feet).
to 20% of the total basin volume.
of pool.
ded at the outlet.
)&M) plan is provided.
is provided in the O&M.plan.
O&M plan.
i to be performed after every storm event.
listed (elevation or depth) in O&M plan.
M plan.
01/02/2001 18:07 FAX [phone] MCSIM & CREED 10001
b
yy?
f
POND MAINTENANCE RE04REMENTS
4
i
Project Name: W eth- ederle Vaccines- Sp-r-d-ord. Project Number:
Responsible Party: Nepht n F.rri co Phone Number: 919, 77S=1100
Q 12,nn Oa 1_ Ya J' k. >^ ?o ?? ? C 'a-7 3 3 b
1. Inspect monthly, or after every runoff-producing rainfill event, whichever is more frequent:
A. Remove debris from the trash rack.
B. Check and clear the orifice of any obstructions.
C. Check the pond side slopes; remove trash, reps r eroded areas before the next rainfall
event. _ E
D. Check the vegetated filter for sediment accumulation, erosion and proper operation.
Repair as necessary.
i ?
II. Quarterly
A. Inspect the collection system (i.e. catch basins, piping, grassed swales) for proper
functioning. Clear accumulated trash from catc basin grates and catch basin bottoms,
and check piping for obstructions.
B. Check pond inlet ponds for undercutting, replacer riprap, and repair broken pipes.
C. Reseed grassed swales, including the vegeta filter if applicable, twice a year as
necessary. Repair eroded areas immediately.
III. Every 6 months
A. Remove accumulated sediment from the bottom
B. Check the pond depth at various points in the
sediment will be removed to at least original del
the outlet structure.
nd. If depth is reduced to three feet,
of four feet.
S:\1724\0001120-Tech\PondMaint"noo-dw
01/02/2001 18:07 FAX [phone] McKIM &
CREED I
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l¢J U UL
POND MAINTENANCE REOUIREMkNTS (continued)
i
t
i
PAGE 2
IV. General
A. Mow the side slopes, not including normally sut merged vegetated shelf, according to
the season. Maximum grass height will be 6°:
f
B. Cattails, and other indigenous wetland plants are!encouraged along the pond perimeter;
however, they must be removed when they cover the entire surface area of the pond.
i
C. The orifice is designed to draw down the pond in 2-5 days. If draw down is not
accomplished in that time, the system may be clogged. The source of the clogging must
be found and eliminated. i
D. All components of the detention pond system must be kept in good working order.
i
E. Owner Is to provide a sump in the event of emerg0cy drainage from the pond needs to
occur between elevations 287.50 and 284.00 (f"r of pond). In addition, sump will be
provided when cleaning of pond (when depth get below 3 feet) is necessary.
i
1
P
b
Fr
P
S:\172410001120 TecMPondMak*Km ae.doo
01/02/2001 18:07 FAX [phone]

MCKIM &
CREED I
i
1
t?
1
l¢j 003
POND MAINTENANCE REQUIREMENTS (continued)
i
s? E
I, Nrccvw a e n unaerw) (name &` title) , hereby acknowledge that I am
the financially party fo maintenance of this detention Ind, I will perform the maintenance as
outlined above, as part of the Certification of Compliancq with Stormwater Regulations received
for this project. !
;
Signature i Date /-jz" al
{
r
I, - , a Notary Public for he State of Ca rot &, a ,
County of . L e'& do hereby certify th t _? n he!„ F?.,r+ n
persorWiliy?appeared before me this Q- r%A -- day of i2y , 200-L-, and
Witness my hand and official seal,
6tkj- due execution of the foregoing instrumnt
( .
! . i i tistnwa s, lin .l?4 !
3 ?•t ,,_ , SEAL
res
= s.}''cnr? ?. _?e 6r?a? 020 o?f ?`
S : pi, 55
1 al .a loJ! l
S:\1724\0001\20-Tech\PondMaiMenar=. oe
DEC 9 200
Vv.&t ?.ls ? _..
WYETH-LEDERLE VACCINES
SEDIMENT/ EROSION CONTROL
& BMP POND DESIGN
SUBMITTAL
Prepared For:
NCDENR-Land Quality Section
December 2000
°°°tett+oaz
8LQ
?s?? lQjr °•r**topse6(1
44 ? f??»trt?uttt°?°
?MCKA4&CREED
McKim & Creed, P.A.
5625 Dillard Road, Suite 117
Cary, NC 27511
[phone]

Introduction
The purpose of this project is to construct a large industrial building which will be a connection
to the existing laboratory building. This project has impacted existing wetlands and as a
condition to the December 6, 2000 approval from DWQ (DWQ Project # 001293) a Best
Management Practice (BMP) pond is proposed to remove 85% of the TSS. This narrative and
calculations, and plans support the design of the BMP pond and associated erosion control
measures.
Site Description
The site is located in Sanford, North Carolina at the Wyeth-Lederle Vaccine Laboratories. The
existing site is heavily wooded with wetlands nearly bisecting the proposed site. The existing
drainage pattern for the site is to the south and western portion of the site. At the downstream
limit of the project is an existing pond and riser that will be replaced with a larger pond and new
riser/barrel configuration.
Erosion Control Measures
Approximately 13 acres of land will be disturbed on this site for excavation of the building and
parking lot. The natural drainage pattern for this site is for water to flow from northeast to
southwest, towards the existing detention pond. Existing wetlands on site are in the process of
being permitted for filling. Erosion control measures will keep all sediment and silt out of the
existing wetlands located downstream of the existing (and proposed) pond. This will be done
through the use of a construction entrance, silt fences, proposed BMP pond, and tree protection
fencing. These measures have been designed to maintain this flow pattern during construction
to prevent sediment from affecting the adjoining lands and the existing wetlands.
A BMP pond is proposed downstream of the access road that will include erosion control
measures to clean water in the vicinity of the pond. This pond will enlarge the existing pond to
accept the first inch of rainfall that falls within the drainage area. In addition, silt fence is
proposed around the perimeter of the pond (for areas not draining to the pond).
Design Requirements
The following design requirements (taken from the NCDENR Stormwater Best Management
Practices manual, dated April 1999) were used to size the proposed BMP pond:
• Permanent Pool- Table 1.1 using a pond depth of 4 feet, and a 70% impervious; with an
assumed buildout of the site
• Forebay sized to approximately 20% of the permanent pool volume
• Temporary pool volume sized for the 1$` inch of rainfall (assuming a 70%
imperviousness)
• A 3 inch orifice was selected to detain the temporary volume for 2-5 days
• A berm was added to the center of the pond to achieve the 3:1 length to width ratio
• An emergency drain added to allow for draining of pond
Pond Design
CALCULATION
PROJECT _ W,, d, Lk PROJ. NO.
CLIENT DATE IZ-07-06
DES. BY
SUBJECT Lets
CHK. BY
REMARKS

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3. General
a. Basin shape should minimize dead storage areas and short circuiting. Length to width
ratios should be 3° 1 or greater. (Barfield, et al., 1981, pp. 426-429; Florida DEP, 1982,
pg. 6-289).
b. If the basin is used as a sediment trap during construction, all sediment deposited during
construction must be removed before normal operation begins.
c. Aquatic vegetation should be included for a wetland type detention basin (Maryland
DNR, March 1987; Schueler, 1987, Chapter 4 and 9). A minimum ten foot wide shallow
sloped shelf is needed at the edge of the basin for safety and to provide appropriate
conditions for aquatic vegetation (Schueler, 1987). This shelf should be sloped 6:1 or
flatter and extend to a depth of 2 feet below the surface of the permanent pool (Shaver
and Maxted, DNREC, 1994). A list of suitable wetland species and propagation
techniques are provided in Schueler (1987) and Maryland DNR (1987).
d. An emergency drain (with a pipe sized to drain the pond in less than 24 hours) should be
installed in all ponds to allow access for riser repairs and sediment removal. (Schueler,
1987).
Table 1.1 Surface Area to Drainage Area. Ratio For Permanent Pool Sizing For 85% Pollutant
Removal Efficiency in the Piedmont
% Impervious Permanent Pool Denth ffeet)
Cover 3.0 4.0 5.0 6.0 7.0 8.0 9.0

20 0.97 0.79 0.70 0.59 0.51 0.46 0.44
30 1.34 1.08 0.97 0.83 0.70 0.64 0.62
40 1.73 1.43 1.25 1.05 0.90 •0.82 0.77
50 2.06 1.73 1.50 1.30 1.09 1.00 0.92
60 2.40 2.03 1.71 1.51 1.29 1.18 1.10
70 2.88 2.40 2.07 1.79 1.54 1.35 1.26
80 3.36 2.78 2.38 2.10 1.86 1.60 1.42
90 3.74 3.10 2.66 2.34 2.11 1.83 1.67
Notes: Numbers given in the body of the table are given in percentages.
Coastal SA/DA ratios can be obtained from the local DWQ Regional Office.
5
,
CALCULATION
PROJECT _U1ye`[ ?ti65 PROJ. NO.
CLIENT DATE 12 ,11-66
SUBJECT- kt Qudli LGIcS_ DES. BY 4r,
CHK. BY

v MCKBA&=D
v
HEADQUARTERS 800-743-5557 • www.mckimcreed.com
CALCULATION
PROJECT I?1 PROJ. NO.
CLIENT DATE 12-600
SUBJECT y?H,c? ?w?C4 DES. BY r
CHK. BY
HEADQUARTERS 800-743-5557 . www.mckimcreed.com
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Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
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NC ENR
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
December 6, 2000
Lee County
DWQ Project # 001293
APPROVAL of 401 Water Quality Certification and ADDITIONAL CONDITIONS
Mr. Paul Piccillo
Wyeth-Lederle Vaccine
4300 Oak Park
Sanford, NC 27330
Dear Mr. Piccillo:
You have our approval, in accordance with the attached conditions and those listed below, to place fill material in 0.406 acres of
wetlands for the purpose of constructing the Wyeth-Lederle Vaccines Facilities Expansion as described in your application dated October 6,
2000. After reviewing your application, we have decided that this fill is covered by General Water Quality Certification Number 3287. This
certification allows you to use Nationwide Permit Number 39 when the Corps of Engineers issues it. In addition, you should get any other
federal, state or local permits before you go ahead with your project including (but not limited to) Sediment and Erosion Control, Coastal
Stormwater, Non-Discharge and Water Supply Water shed regulations. This approval will expire when the accompanying 404 or CAMA
permit expires unless otherwise specified in the General Certification.
This approval is only valid for the purpose and design that you described in your application except as modified below. If you change
your project, you must notify us and you may be required to send us a new application. If the property is sold, the new owner must be given a
copy of this Certification and approval letter and is thereby responsible for complying with all conditions. If total wetland fills for this project
(now or in the future) exceed one acre, compensatory mitigation may be required as described in 15A NCAC 2H .0506 (h) (6) and (7). For this
approval to be valid, you must follow the conditions listed in the attached certification and any additional conditions listed below.
1. Deed notifications or similar mechanisms shall be placed on all remaining jurisdictional wetlands and streams to notify the state in order
to assure compliance for future wetland and/or water impact. These mechanisms shall be put in place within 30 days of the date of this
letter or the issuance of the 404 Permit (whichever is later).
2. An additional condition is that a final, written stormwater management plan shall be approved by this Office before the impacts specified
in this Certification occur. The stormwater management plan must include plans and specifications for stormwater management facilities
designed to remove 85% TSS according to the most recent version of the NC DENR Stormwater Best Management Practices Manual.
Also, before any permanent building is occupied at the subject site, the facilities, as approved by this Office, shall be constructed and
operational, and the stormwater management plan, as approved by this Office, shall be implemented.
3. The stormwater from the road crossing shall either be directed through the stormwater pond or designed to sheetflow at non-erosive
velocities across the stream buffers before reaching the stream.
If you do not accept any of the conditions of this certification, you may ask for an adjudicatory hearing. You must act within 60 days of
the date that you receive this letter. To ask for a hearing, send a written petition, which conforms to Chapter 1508 of the North Carolina
General Statutes to the Office of Administrative Hearings, P.O. Box 27447, Raleigh, N.C. 276 1 1-7447. This certification and its conditions are
final and binding unless you ask for a hearing.
This letter completes the review of the Division of Water Quality under Section 401 of the Clean Water Act. If you have any questions,
please telephone John Domey at 919-733-9646.
4elinc?yjtevens
Attachment
cc: Corps of Engineers Raleigh Field Office
Raleigh DWQ Regional Office File copy
Central Files
Todd St. John
Jennifer Burdette; Soil & Environmental Consultants .
Division of Water Quality • Wetlands/401 Unit
1621 Mail Service Center e Raleigh NC 27669-1621 • Telephone [phone] • FAX # [phone]
An Equal Opportunity Affirmative Action Employer
50% recycled/10% post consumer paper
Memorandum
To: John Dorney
From: John Hennessy
Date: December 5, 2000
Re: Tardy Projects
List of Recommendations
Wyeth-Lederle Vaccines, DWQ No. 001293
I have been unable to get with anyone at the regional office on this project. Therefore, I am making a
recommendation without their input. I recommend issuance (for the reasons listed below) with the
following conditions:
Rationale:
1) They have limited options for on site expansion,
2) They have already avoided the highest quality systems on site,
3) They are proposing on-site stormwater management (see condition below)
4) Their design appears to have minimized impacts as much as possible.
Conditions:
1) The stormwater from road crossing not be discharged directly into steam. Standard condition about
sheetflow through buffer at non-erosive velocities.
2) Require an approved stormwater basin design prior to allowing use of new facilities (standard
condition).
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Soil & Environmental C'sultants, Inc.
Ett-rbir ?0?€p
11010 Raven Ridge Road • Raleigh, North Carolina 27614 Phor)I?^.t397 84-500 . Fax. [phone]
-..._?u,....„_.
Web Page: www.SandEC.com
October 6, 2000 0 0 1 2 9 3
Mr. John Thomas Mr. John Dorney
U.S. Army Corps of Engineers N.C. Division of Water Quality
Raleigh Regulatory Branch NCDENR
6508 Falls of the Neuse Road, Suite 120 4401 Reedy Creek Road
Raleigh, North Carolina 27615 Raleigh, North Carolina 27607
Re: Wyeth-Lederle Vaccines Facilities Expansion
Pre-Construction Notification Application for a Nationwide 39 Permit and 401 Certification -D
Sanford, Lee County, North Carolina
S&EC Project No. 00-5678 r
Dear Mr. Thomas and Mr. Dorney:
Soil & Environmental Consultants (S&EC) is submitting on behalf of Wyeth-Lederle Vaccines of Sanford,
North Carolina a Pre-Construction Notification Application (PCN) for proposed impacts to a linear
headwater forest wetland that is located above headwaters. The project site drains to Little Buffalo Creek
(Stream Index Number 17-42), which is classified as a WS-IV water. The immediate project site consists
of approximately 15 acres and is located adjacent to U.S. 1 and is approximately 2.3 north of the Sanford
City Limits, Sanford, Lee County, North Carolina (see enclosed USGS map). This site is located within the
Cape Fear River Basin USGS Cataloging Unit 03030003.
Wyeth-Lederle Vaccines (WLV) is proposing to expand current manufacturing facilities within the existing
property boundaries. The proposed expansion will result in the fill of approximately 0.406 acres of
wetlands and 0 linear feet of stream channel. This wetland feature was delineated and flagged by S&EC
staff August 31, 2000. A digital file and an unsigned paper copy of the wetland delineation are enclosed
(USACE copy only). A mylar and paper copy of the wetland delineation signed by a registered
professional surveyor will be sent under a separate cover. Two data forms completed for the delineation
are attached (USACE copy only). We request verification of the wetland delineation by conducting a site
meeting or an office determination whichever is most convenient. A wetland delineation was previously
completed for the entire property by Law Engineering early 1993 and reviewed by Ms. Jean B. Manuele of
the Raleigh U.S. Army Corps of Engineers (USACE) Regulatory Office (Action ID 199301621).
Alternative locations for the placement of the proposed facilities were investigated. But it was determined
that the proposed expansion placement is constrained within the existing property boundaries. Two large
existing buildings on-site eliminate the possibility of avoiding wetland impacts on-site and relocating the
facilities to another site will reduce manufacturing proficiency and create personnel transportation
problems. Shifting the proposed building facilities to the southwest of the proposed site would result in the
impact of larger wetland areas located below headwaters. Other site limitations include the existing
location of the Norfolk-Southern Railroad and U.S. 1 rights-of-way that bound the site to the north and
southeast, respectively.
Total impact resulting from the proposed expansion will be 0.406 acres of headwater wetland and 0 linear
feet of stream channel. The USGS does not identify any stream channels (intermittent or perennial) within
the project site. During the alternatives investigation, it was determined that the proposed building
expansion must be tied to the existing facilities in order to satisfy the manufacturing process, maintain a
clean atmosphere, and provide a central gown/de-gown area. The only adjacent areas to the existing
facilities consist of the Little Buffalo Creek floodplain and the area of the proposed building expansion.
Wetland Delineation/Permitting/Mitigation Soil/Site Evaluations On-Site Septic Systems Environmental Assessments/Audits
Neuse Basin and Watershed Buffer Evaluations Groundwater Hydrology Endangered Species
Western Branch Offices: [phone] • [phone] • [phone]
The proposed building expansion area was chosen in order to avoid potential wetland impacts to the more
valuable bottomland hardwood wetlands associated with Little Buffalo Creek, which is also highly likely to
be located within the 100-year floodplain.
It is important to note that WLV does not have any previous permits associated with the subject property.
However, the City of Sanford constructed a state road across Little Buffalo Creek in the early 1990s.
Recently this ownership of this road was transferred to WLV due to the company's security concerns. We
were unable to determine ascertain the details of the road crossing from the City of Sanford, but believe it
was designed to impact less than 1/3 acre based on documentation of pre-construction consultation.
The USACE's current policy requires applicants to avoid and minimize wetland and stream channel
impacts to the maximum extent practicable and requires compensatory mitigation to offset unavoidable
losses of waters of the US when impacts exceed the requirements for notification (0.10 acre). It is S&EC's
professional opinion that impacts to wetlands and surface waters have been minimized as much as is
practical considering the sites constraints in order to provide additional manufacturing facilities on-site.
The applicant proposes to establish a 50-foot-wide vegetative buffer along Little Buffalo Creek and to
construct a water quality pond to treat stormwater from the proposed building expansion area for mitigation
to offset the unavoidable losses of waters of the US. A conceptual design has been completed to ensure
area is available for construction of the water quality pond. The pond will be designed to achieve 85%
pollutant removal as per the DWQ Stormwater Best Management Practices Manual. McKim & Creed are
performing the necessary calculations to finalize the water quality pond design, which will be submitted to
DWQ upon completion. Based on the proposed mitigation described above, S&EC believes the USACE
should not require mitigation.
NC-DWQ's current policy does not require mitigation for wetland and stream channel impacts below
1 acre and 150 linear feet, respectively. Because the proposed cumulative impacts resulting from the
project, which include less than or equal to 0.33 acre for the previous road crossing (if the USACE
determines that these impacts are cumulative) and 0.406 acre for the proposed building expansion for a
total of 0.736 acre, do not exceed the aforementioned thresholds, S&EC believes that wetland or stream
channel mitigation should not be required.
If you have any questions regarding this application please call me at 919/846-5900.
Sincerely,
Soil and Environmental Consultants
?-
Jennifer A. Burdette
Environmental Scientist
Attachments: 1) PCN Application
2) Colon, North Carolina 7.5-minute USGS Quadrangle (Maptech, Inc.)
3) Impact Map
4.) Data Forms (2)
5) Agent Authorization Form
6) DWQ $200 Application Fee
c: Mr. Ernie Harrington, McKim & Creed
001293
DWQ ID:
Corps Action ID:
Nationwide Permit Requested (Provide Nationwide Permit #): 39
Pre-Construction Notification Application
For Nationwide Permits that Require:
1) Notification to the Corps of Engineers
2) Application for Section 401 Certification
3) Coordination with the NC Division of Coastal Management
Send the original and (1) copy of this completed form to the appropriate field office of
the Corps of Engineers (see agency addresses sheet). Seven (7) copies should be sent to
the NC Division of Environmental Management (see agency addresses sheet). PLEASE
PRINT.
1. Owner's Name: Wyeth-Lederle Vaccine/ Paul Piccillo
2. Mailing Address: 4300 Oak Park,
Subdivision Name:
City: Sanford
State: NC Zip Code: 27330
Project location address, including subdivision name (if different from mailing address
above): Located adjacent to the west of U.S. 1 and south of the Norfolk-Southern Railroad,
approximately 1.3 miles northeast of the 15-50111I.S. 1 interchange located in Lee County NC.
3) Telephone Number (Home): (Work): 919/775-7100
4) If applicable, agent's name or responsible corporate official, address, phone
number:
Soil & Environmental Consultants, Inc Phone: [phone]
11010 Raven Ridge Road Fax: [phone]
Raleigh, NC 27614
5. Location of work (provide a map, preferable a copy of USGS topographic map or
aerial photograph with scale):
County: Lee Nearest town or city: Sanford
Specific Location (include road numbers, landmarks, etc.):
See above
6. Impacted or nearest stream/river: Little Buffalo Creek
River Basin: Cape Fear
7a. Is project located near water classified as trout, tidal saltwater (SA), high quality
waters (HQW), outstanding resource waters (ORW), water supply (WS-I or WS-
II)? YES ? NO ® If yes, explain:
7b. If the project is located within a North Carolina division of coastal management
area of environmental concern (AEC)? YES ? NO
7c. If the project is located within a coastal county (see page 7 for list of coastal
counties), what is the land use plan (LUP) designation?
8a. Have any Section 404 permits been previously requested for use on this property?
YES ® NO ? If yes, provide Action ID number of pervious permit and
any additional information (including photocopy of 401 certification).
WLV does not have and previous permits associated with the subject property. However,
the City of Sanford constructed a state road across Little Buffalo Creek in the early 1990s.
Recently the ownerft of this road was transferred to WLV due to the company's security
concerns. We were unable to determine the amount of impact associated with the road
crossing from the City, but believe the crossing: was designed to impact less than 1/3 acre
based on documentation of pre-construction consultation.
8b. Are additional permit requests expected for this property in the future?
YES ? NO 0 If yes, describe anticipated work:
9a. Estimated total number of acres in tract of land: 105 acres
9b. Estimated total number or acres of wetlands located on project site: 17.3
10a. Number of acres of wetlands impacted by the proposed project by:
Filling: 0.406 Excavation:
Flooding:
Drainage:
Other:
Total acres to be impacted: 0.406
10b. (1) Stream channel to be impacted by the proposed project (if relocated,
provide distance both before and after relocation):
Length before: N/A
After:
Width Before (based on normal high water contours):
Width After:
Average depth before:
After:
(2) Stream channel impacts will result from: (check all that apply)
Open channel relocation: ? Placement of pipe in channel: ?
Channel Excavation: ? Construction of a Dam/ Flooding: ?
Other:
11. If construction of a pond is proposed, what is the size of the watershed draining to
the pond? 12.93 acres
What is the expected pond surface area? 16,278 sq. ft.
12. Description of proposed work including discussion of type of mechanical
equipment to be used (attach plans 81/2" x 11" drawings only):
Cut and fill of an approximate 15 acre portion of property for the purpose of constructing
additional manufacturing facilities on-site. The project will utilize typical construction
equipment including Uaders, earthmovers, trackhoes, etc.
13. Purpose of proposed work: Prepare site for the construction of additional
manufacturing and parking facilities.
14. State reasons why it is believed that this activity must be carried out in wetlands
(include any measures taken to minimize wetland impacts): Site constraints limits
alternative locations within the existing site. Wetland impacts have been avoid within the
Little Buffalo Creek floodway/floodfringe containing riparian and bottomland hardwood
wetlands located below headwaters. Site consist of approximately 17 acres of wetland and
client is proposing to Mnpact only 0.406 acres above headwater, approximately 2% of the
existing; wetlands located on site. Please also refer to the cover letter of this application for
more information regarding; the analysis of project alternatives.
15. You are required to contact the U.S. Fish and Wildlife Service (USFWS) and/or
National Marine Fisheries Service (NMFS) (see agency addresses sheet) regarding
the presence of any federally listed or proposed for listing endangered or
threatened species or critical habitat in the permit area that may be affected by the
proposed project. Date contacted: (attach responses from these agencies).
Performed by USACE
16. You are required to contact the state historic preservation officer (SHPO) (see
agency address sheet) regarding the presence of historic properties in the permit
area which may be affected by the proposed project. Date contacted:
Performed by USACE
17. Does the project involve an expenditure of public funds or the use of public (state)
land?
YES ? NO ® If no, go to 18.
a. If yes, does the project require preparation of an environmental document
pursuant to the requirements of the North Carolina Environmental Policy
Act?
YES ? NO ?
b. If yes, has the document been reviewed through the North Carolina
Department of Administration State Clearinghouse?
YES ? NO ?
If answers to 17b is YES, then submit appropriate documentation from the state
clearinghouse to division of environmental management regarding compliance
with the North Carolina Environmental Policy Act.
Questions regarding the State Clearinghouse review process should be directed to
Ms. Chrys Baggett, Director State Clearinghouse, North Carolina Department of
Administration, 116 West Jones Street, Raleigh, North Carolina 27603-8003,
telephone [phone].
18. The following items should be included with this application if proposed activity
involves the discharge of excavated or fill material into wetlands:
a. Wetland delineation map showing all wetlands, streams, lakes and ponds on
the property (for Nationwide Permit numbers 14, 18, 21, 26, 29 and 38). All
streams (intermittent and permanent) on the property must be shown on the
map. Map scales should be 1 inch equals 50 feet or 1 inch equals 100 feet or
their equivalent.
b. If available, representative photograph of wetlands to be impacted by project.
C. If delineation was performed by a consultant, include all data sheets relevant
to the placement of the delineation line.
d. Attach a copy of the stormwater management plan, if required.
e. What is land used of surrounding property? commerical, rural
f. If applicable, what is proposed method of sewage disposal? municipal
g. Signed and dated agent authorization letter, if applicable.
NOTE: Wetlands or Waters of the U.S. may not be impacted prior to:
1. Issuance of a Section 404 Corps of Engineers Permit,
2. Either the issuance or waiver of a 401 Division of Environmental
Management (Water Quality) certification, and
3. (in the twenty coastal counties only) A letter from the North Carolina
Division of Coastal Management stating the proposed activity is consistent
with the North Carolina Coastal Management program.
ner' A ent' ignature Date
[Agent's signature valid only if Agent Authorization Letter from the owner is provided
(18 g.0)]
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Name: COLON
Date: 10/612000 Caption: Figure 1 - Location Map
Scale: 1 inch equals 2000 feet Wyeth-Lederle Vaccines
Sanford, Lee Co., NC
Copyright (C) 1997, Maptech, Inc.
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Soil & Environmental Consultants, Inc,
11010 Raven Ridge Road • Raleigh, North Carolina 27614 • Phone: [phone] • Fax: [phone]
Web Page: vwww.SandEC.com
AGENT AUTHORIZATION FORM
Name: 4 ?JOt:u•-`
All Blanks To Be Filled In
i Chi N ? J%
Address: 4?30t oA
Current Landowner
?a?i? ?i.CCI^ec
Arc
Phone: --7-79---7100
Project Name/Description: Meth - Lederle Vaccines - Sanford/S&EC Project #• 00-5678
Date: VI ?L/1)0
The Department of the Army
U.S. Army Corps of Engineers, Wilmington District
P.O. Box 1890
Wilmington, NC 28402
Attn: John Thomas
Field Office: _ Raleigh
Re: Wetlands Related Consulting and Permitting
To Whom It May Concern:
I, the current roe owner, hereby designate and authorize Soil & Environmental Consultants, Inc. to
act in my behalf as my agent in the processing of permit applications, to furnish upon reques4k
su,Rple ern b information in support of applications, etc. from this day forward. The day of
__a .
This notification supersedes any previous correspondence concerning the agent for this project.
NOTICE: This authorization, for liability and professional courtesy reasons, is valid only for
government officials to enter the property when accompanied by S&EC staff. You should call S&EC
to arrange a site meeting prior to visiting the site. ?-?
v4s,-A _Q IcL;
int Prope Owner's Name
cc: Mr. John Domey
NCDENR - DWQ Water Quality Planning
4401 Reedy Creek Road
Raleigh, NC 27607
Mr. J(Kmifer A. Burdette
Soil & Environmental Consultants, Inc.
blank agent auth form doc
Wetland Delineation/Permitting/Mitigation Soil/Site Evaluations On-Site Septic Systems Environmental Assessments/Audits
Neuse Basin and Watershed Buffer Evaluations Groundwater Hydrology Endangered Species
rti„•l.,frP nrfi,.P• i?ne? cu zo?? _ v:_,.__. ,,?- ,,,.,... ,..,. _,..._
2000

- ® North Carolina Wildlife Resources Commission P
Charles R. Fullwood, Executive Director
MEMORANDUM
TO: John Thomas
Raleigh Regulatory Field Office
US Army corps of Engineers
FROM: Danielle R. Pender, Piedmont Region Coordinator
Habitat Conservation Program
DATE: 7 November 2000
SUBJECT: Pre-construction Notification Application for Wyeth-Lederle Vaccine, Lee
County, North Carolina. Action ID: 200120046
Biologists with the North Carolina Wildlife Resources Commission have reviewed the
subject pre-construction notification. Our comments are provided in accordance with provisions
of the Clean Water Act of 1977 (as amended), the Fish and Wildlife Coordination Act (48 Stat.
401, as amended; 16 U.S.C. 661-667d), and North Carolina General Statutes (G.S. 113-131 et
seq.).
Applicant proposes to impact 0.406 acres wetlands for constructing additional
manufacturing facilities on a 15-acre portion of the property. The project site is located on 105
acres of which 17.3 acres are wetlands. The site is drained by Little Buffalo Creek, which flows
into the Deep River. There are records for the federally endangered Cape fear shiner (Notropis
mekistocholas) in the Deep River.
We recommend that the following conditions be incorporated into the permit to reduce
impacts to fish and wildlife resources.
1. Require all remaining wetlands on the site to be protected from additional impacts by
placing them in a permanent conservation easement to prohibit filling, draining, flooding,
and excavation.
2. A minimum 50-foot undisturbed, forested buffer should be maintained along all
intermittent streams and wetland areas, while a minimum 100-foot undisturbed, forested
buffer should be maintained along all perennial streams within the project area.
Maintaining undisturbed, forested buffers along these areas will minimize impacts to fish
and wildlife resources, water quality, aquatic habitat both within and downstream of the
project area, and to help prevent the extirpation of endangered and threatened species. In
Mailing Address: Division of Inland Fisheries - 1721 Mail Sen•ice Center - Raleigh, NC 27699-1721
Telephone: [phone] ext. 281 - Fax: [phone]
`Page 2
7 November 2000
Wyeth-Lederle Vaccine
Action ID: 200120046
addition, wide riparian buffers are helpful in maintaining stability of stream banks and for
treatment of pollutants associated with urban stormwater.
3.' A 4-6-foot wide littoral shelf, planted in native herbaceous aquatic plants, should be
constructed along the edge of the water quality pond to help mitigate some of the lost
wetland functions and aquatic habitat. In addition, native trees and shrubs should be
planted around the upper portion of the detention structure to provide avian and terrestrial
habitat and to reduce exposure of the water surface to sunlight.
Thank you for the opportunity to review this pre-construction notice. If you require
further assistance please contact our office at [phone].
cc: Garland Pardue, Biologist, USFWS
Stephen Hall, Zoologist; Natural Heritage Program
John Dorney, Wetland Scientist, DWQ