NCG140235_COMPLETE FILE - HISTORICAL_20061002 (2)

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT N0.
DOC TYPE
HISTORICAL FILE
❑ MONITORING REPORTS
HOC DATE
❑ �,(OD (O I 0 n
YYYYM M DD

F WArE
. ..�� 9Q Michael F. Easley, Governor
William G. Ross 3r., Secretary
co
North Carolina Department of Environment and Natural Resources
1
Alan W. Klimek, P.E. Director
Division of Water Quality
October 2, 2006
Mr. James Washburn
S. T. Wooten Corporation
POB 2408
Wilson, North Carolina 27894-2408
Subject: Authorization to Construct
ST Wooten -- Raleigh Airport plant
NCG140235
Wake County
Dear Mr. Washburn:
The Division of Water Quality (DWQ) received your request to construct stormwater and
wastewater controls at the subject facility on April 12, 2006, and again with revisions on June 6,
2006, and September 27, 2006. In accordance with your request, you are authorized to construct
the approved control facilities, effective today.
Authorization is hereby granted for the construction and installation of a batch plant wash water
swale, a small holding pond, a transfer pump and piping, a truck wash area, a conveyance system
for the truck wash water, a concrete recycle system, an earthen berm and large settling pond, a
portable pH treatment system, and a large settling pond discharge structure, all in accordance
with the approved site drawing, equipment specifications, and design calculations.
You must notify DWQ's Raleigh Regional Office supervisor, telephone number [phone], at
least 48 hours in advance of operation of the installed facilities so that regional office staff can
conduct an in -place inspection prior to operation. Such notification to the -regional supervisor shall
be made during the normal office hours from 8:00 a.m. until, 5:00 p.m. on Monday through
Friday, excluding state holidays.
Upon completion of construction and prior to operation of the authorized controls, you must
submit a certification from a professional engineer certifying that the controls have been
constructed and installed in accordance with the NPDES permit requirements in NCG140000, the
Certificate of Coverage NCG140235, this Authorization to Construct, and the approved site plan,
specifications, and calculations. Please mail the engineer's certification to DWQ Stormwater
Permitting Unit, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617. Our
Authorization to Construct is subject to revocation unless the control facilities are constructed in
accordance with the approved site plan, specifications, and calculations.
You must maintain on file a copy of the approved site plan, specifications, and design calculations
for the life of the facility.
In the event that the controls fail to perform satisfactorily, including the creation of nuisance
conditions, you must take immediate corrective action, including those actions as may be required
by this Division, such as the construction of additional or replacement controls.
NO,ThCarolinaWimally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwaterquality.org location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

Mr. James Washburn
r^3ge 21tf 3
October 2, 2006
Failure to abide by the requirements contained in this Authorization to Construct may subject the
Permittee to an enforcement action by DWQ, in accordance with North Carolina General Statute
143-215.6A to 143-215.6C.
This Authorization to Construct does not affect the legal requirements to obtain other permits or
authorizations that may be required by DWQ, or other federal, state, or local government
agencies.
Please contact Ken Pickle at [phone] x 584, with any comments or questions.
Sincerely,
Alan Klimek, P.E.
cc: Darin McClure, Mid -Atlantic Assoc., 409 Rogers View Ct., Raleigh, NC 27610, letter only
DWQ Raleigh Regional Office
DWQ Central Files,, letter only
(SPU_file-NCG140235.r '

Mr. James Washburn
Sage 3,4f 3
October 2, 2006
Engineer's Certification
I, , as a duly registered Professional Engineer in the State
of North Carolina, have to observed (periodically, weekly, full time) the construction of
the project, ,
Project Name
Location
for the Permittee. I hereby state that, to the best of my abilities, due care and diligence
was used in the observation of the construction and installation of a batch plant wash
water swale, a small holding pond, a transfer pump and piping, a truck wash area, a
conveyance system for the truck wash water, a concrete recycle system, an earthen
berm and large settling pond, a portable pH treatment system, and a large settling pond
discharge structure, and all associated pumps, piping, and controls such that the
construction was observed to be built within substantial compliance and intent of the
approved plans and specifications.
Signature
Registration No.
Date
Mail this Certification to: Stormwater Permitting Unit
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617

1�1'weed coo
June 5, 2006
Mr. Ken Pickle
MID -ATLANTIC
ASS 0CIATE S,INC.
Engineering & Environmental Solutions
409 Rogers Yew Court /Raleigh 1 Narth Carolina 127610
800-486-7568 1919-250-9918 1919-250-9950 Facsimile
+v+r++:maaonlinc.taro
North Carolina Department of Environment and Natural
Division of Water Quality
Stormwater and General Permits Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Noiluh
c1ti9Sifl:10� 4+lai2C Q'+:' �sJ
1Da v y�vlP
Resources
Subject: RESPONSE TO ADDITIONAL INFORMATION REQUEST "Cy
S.T. WOOTEN CORPORATION — AIRPORT PLANT o `�
FORTUNE WAY �'
RALEIGH, NORTH CAROLINA z
zC
MID -ATLANTIC PROJECT NO. 000R1578.02 a
C3
Dear Mr. Pickle:
r
This letter and referenced attachments are submitted in response to your letter requesting
additional information, dated April 20, 2006. Our responses are numbered to coincide with the
requests in your letter.
1. Site Map
a. The wastewater and stormwater discharge point for the facility is shown on the
sW /'.rcnx. �t oaf attached Drawing 1A (Attachment A). In the event of a discharge at the site, it
will overflow at the berm in area 3.
�rr� �i,, b. The origins of the process wastewater flows (batch plant washdown and truck
,d �' k wash area) are shown on the attached Drawing 1A. Sand and aggregate are
stored in silos and are not irrigated. Truck washdowiVW shout will discharge
s of rPCe^rcir�G directly-int6 tine recycle system.
T 7, c. the drainage areas at the site were delineated using field observations and a
topographic map provided by S.T. Wooten Corporation. The topographic lines
cPPcry lvf clPr are included on Drawing 1A.
fu". Drainage area 1 includes a parking/entrance area, the control building,
�'� a ! �'F' ` ✓ admixture tanks (within secondary containment), storage/boiler building, and a
1 double -walled heating oil aboveground storage tank. Runoff from the northern
portion of area 1 which contains primarily parkingand the plant exit flows via
rlo C--?+rot sheet flow onto Fortune Way. Runoff from he southern portion of area 1 flows
off the site as sheet flow. There is no wastewater generated in this area.
e. The berm at the northern end of the property is, as you referred, just a turned
line of earth composed of material excavated at the site. The top of berm
elevation, as depicted on Drawing 1A, is approximately 480 feet. As shown in
the attached calculations, the bermed area should contain approximately
235,000 gallons.

Response to Additional Information Request
S. T. Wooten Corporation -- Airport Plant
Fortune Way
Raleigh, North Carolina
June 5, 2006
Page 2
2. Design Calculations, design basis and design details
&k, a.
S.T. Wooten has indicated to us that with the proper filtration, they will have no
issues with using the recycled water in their mixing process. In fact, they are
already using a similar setup at another site.
b.
Please note that the original and revised calculations (Attachment B) indicate
that volume of water used each day is greater than the amount of wastewater
discharged to the lower pond and recycle system combined. Therefore, the
J'c�,I� retained inventory in these two "vessels" should be minimal. The actual
�ou U
retained inventory in the bermed area is, more subjective and we have not tried
to estimate that number here.
`1
Note that the attached revised calculations indicate that the storage capacity at
the site is less than that originally estimated. Although the entire capacity of the
qa/ �
�
site is large (approximately 321,000 gallons), it is not enough to hold runoff from
the 25-year, 24-hour storm plus one -foot of freeboard. However, we submit that
if indeed the site were to incur a discharge, it would occur at the discharge point
of the bermed area with concentrations within permit limits. Please note that all
__E)
pTcce�ss wastewater at the site will pass through the recycle system and the /u�- bit;
-bypass
sancTfilte� (Attachment C) and stormwater from drainage area 3 will the
7 ` S
recycle system and flow toward the berm. In the event of a discharge from the
recycle system, the discharge will occur from the holding tank after the water
has been routed through the sand filter (with only particles less than,5'microns
in size discharging). This water will settle into the northern bermed area where
it will mix with stormwater that falls on the remainder of drainage area 3. The
pH of water in the bermed area will be monitored and treated with a Model
5000-S pH Monitor and Control System, if necessary. An engineer's faf`
certification representing that the system could effectively provide an effluent
�rrr'
S'
with a pH in the range of 6-9 (as stipulated in the permit), along with..
manufacturer's_information_on.the-system, is included -in -Attachment C.)We feel
TG. basis [compliance-witb-pgrmit
that the measures outlined within this submittal are sufficient to demonstrate
limits in the event of-a_discharge_from_the.site.
c.
Calculations indicate that on average, approximately 16,800 gallons per year
No ,,,�/fir, /03&�6
(46 gallons per day) will evaporate from the holding vessels at the site. Due to
n'n c9YaP. loss
the highly variable rate of evaporation throughout the year and the fact that
8
there is not enough storage to hold the 25-year, 24-hour storm, we have not
included this as a factor in our water balance calculations. We provide this for
information purposes only. We agree with your assumption that over time
infiltration will be minimal; therefore we have not included the impacts of
infiltration in our calculations.
d.
Aggregate and sand are stored in silos and not irrigated at the site.
MID -ATLANTIC
ASS 0CIATE S.INC.
Engineering & Environmental Snlations

Response to Additional Information Request
S. T. Wooten Corporation — Airport Plant
Fortune Way
Raleigh, North Carolina
June 5, 2006
Page 3
We appreciate the opportunity to submit this additional information. If you have any questions
or need additional information, please do not hesitate to call me at 250-9918.
Sincerely,
I
�n Corporation
1578. 0215-1106 DesignAddendum/ DMM/aso
MID -ATLANTIC
ASSOCIATE S.INC.
Engineering & Environmental Solulion.i

ATTACHMENT A
a]ZTTI AIf[o
Engineering & Environmental Solutions

ATTACHMENT B
CALCULATIONS AND SUPPORTING DOCUMENTATION
4PPROVED
otth Carr€na Env:rortrnentai
Managsmrtt Cc;rias,an
Dmsion of wa"ar Qaity
20
MID -ATLANTIC
ASS 0CTAT ES,INC.
Engineering & Envirrrrtntenta! Solution.%

ST Wooten - Air art Plant Calculations /
sS
Performed by: cold a U
Checked by: �k
h--� r
�i
Process Wastewater Generated vs. Water Used at the Site fThrouahDutNVater Balance
Average work day = 10 hours
Wash water produced = 5 gal/CY (Truck and plant washdown)
Capacity of plant - 350 CY/day ��y, 360.c ��� = 1? so g
Wash water per day = 1750 gallons
1 gallon = 0.133681 cf
Wash water per day = 234 cf�j ash A-,-
Water/cu. Yd. +
of concrete = 30 gallons 63o �/lcj)(3 50 CY/�)
Water Use/Day = 10,500 gallons > 1750 g a'l4 an S
CWater needs exceed amount of wastewater produced each day)'
Volume of Lower Pond Associated with Drainaae Area 2 fV11
Width (ft.) 15
Length (ft.) 20 3s
Depth (ft.) 3 d
Volume (cu. Ft.) 900 -,
Volume (gallons) 6,733 al[�(V1) 1 cu. Ft. = 7.481 gallons
Volume of Washdown/Recycling Pit (V2)
Number of Bays 5
Bay Width (ft.) 10
Effective Depth (ft.) 9 ✓ Depth Before Overflow of Bays
Length of Bottom (ft.) 6 `' Length of Flat Bottom
Slope (x to 1) 2 V� v
Volume of Each Bay (cu. Ft.) 1350 ? ,� �c 6. = 7 SD 6,:p ; Svc
Volume (gallons) 10,099 Vb1 I i
T,
Width of Holding Tank (ft.) 15{� +
Length of Holding Tank (ft.) 24 !v' �x D = S4 O&-( l
Depth of Holding Tank (ft.) 11i,)
Volume of Holding Tank (cu. Ft.) 3,960 ✓ ` `
Volume (gallons) 29,625 13 Q�
j r
V2 = &18�0,122 gallons (No. Bays x Volume Bay) + Volume Holding Tank
APPROVED ro� ,�.3L
North Carolina EfMr0nM0ntrJ --
Matlagenlent CiQfnky6ad0n
t
x� pion of wator Qu---14 _. -� 4
20 � r
ti
7

Calculate freeboard available for rain event
Calculation assumes holding tank full of recycled water at start of rain event and overflow
would occur from bays 1-5.
Working Depth (ft) 6 Max. Depth of Water During Operation ✓
Bay Surface Area (Sq. Ft.) 180 �.-
System Surface Area (Sq. Ft.) 900
Volume of Each Bay (cu. Ft.) 720 = �`
Volume (gallons) vo b��� 5,386 Vb2
Freeboard (gallons) 23,565
a bad " CY&a at- 51of-d U"Val)
Volume Contained -by Bermed Area of Site IV3l
Area of 478' Contour (sq. ft.)
Area of 479' Contour (sq. ft.)
Area of 480' Contour (sq. ft.)
Volume between 478' & 479 contours (cu. Ft.)'
Volume between 479' & 480 contours (cu. Ft.)"
Total Volume between 478' & 480 contours (cu. Ft.)
Total Volume between 478' & 480 contours (gallons)
Total Volume between 478' & 480 contours (liters)
' Assumes linear slope between contours
Total Volume of Storage Available on Site fV
(# bays ` Vb1) - (# bays ' Vb2)
(24 iZ9) C 235�12f
4,519
Al
16,818
A2
24,702
A3
10,668
(Al+((A2-A1)/2) x 1 ft.
20,760
(A2+((A3-A2)/2) x 1 ft.
31428 dig
—235,116 V3
889, 916 � M
V = 321,971 allons (V1+V2+V3)
1,218,660 liters 1 gallon = 3.785 liters
Arstl.�s ' r .s,�« �
Actual Runoff from Site r'eaS a'e
Storage (S) _ (1000/CN) - 10 where:
CN = 85 Runoff Curve Number
S = 1.7647
Q" _ [(P - 0.2S)-2] / (P + 0.8S) where:
Q" = effective runoff depth in inches /
P = precipitation in inches = 6.5
S = storage in inches
Q" = 4.78 inches
Volume of Runoff from storm (Vt) = Q' (ft.) x Area of Site (sq. ft.)
A Ft&rrA4-e
+-QAM��$�
=�C247o24-67272-
-I•-
3 Z [ !a4
35733
3z lj971
25yr/24hr storm
p ppiROVEID
watt►
omsion of SWOT Qu V
R
20 .�
Total Area of Site = 139,270 sq, ft. DdG
Vt = 55,429 cu. Ft. ftmo
Vt = 414,665 gallons
Total volume of storage on site is less than total volume generated during 25yr/24 hr storm. 1/

4�
fo po,7/O^ 642.s
15¢i,n��q
Sizing the Small Pond and Pump
Check intensity and volume of 25-year storm.
e for 25 year storm = 705 cu
e for 25 year storm = 5 7�4 gal
Volume of Small Pond > Vol e from 25-year st
capture this rain event withou overflowing. Ba
(See Hydrograph)
ierefore, pond should be able to
size on 25_yr/24_hr event.
Q' for 25 yr/24 hr event = 4.78 inches
Area 2 (sq. ft.) = 61 86 sq. ft.
Volume (cu. Ft.) = r 24,621
Volume (gallons) = 84, gallons per 24 hour period)
Vo %4,
m.adn fo�a/57�rn
Rate = 128 (gallons/minute) ��QS� '1 Z,
Rate pump at 150 gpm at 25 feet of head.
Calculate Total Suspended Solids Concentration OW
Assume particles 4 microns and smaller will pass through filter and discharge to berme_d area:
Volume of Subtotal of " V� �� 11,-7S7
Diameter
size
%<
Particle
Weighted
Weighted
%Total
c�5
(microns)
distribution
(microns)
Volume
Volume
Volume
1
4.7
4.7
0.523
0.0246
0.0246
0.000%
1.5
2.6
7.3
1.766
0.0459
0.0705
0.000%
2
4.8
12.1
4.187
0.2010
0.2715
0.001 %
3
5.6
17.7
14.130
0.7913
1.0628
0.003%
4
4.6
22.3
33.493
1.5407
2.6035
0.006%
6
7.6
29.9
113.040
8.5910
11.1945
0.028%
8
6
35.9
267,947
16.0768
27.2713
0.068%
12
10.5
46.4
904.320
94.9536
122.2249
0.304%
✓F'i .�+'
16
8.2
54.6
2143.573
175.7730
297.9979
0.741 %
24
13.8
68.4
7234.560
998.3693
1296.3672
3.224%
32
10.3
78.7
17148.587
1766.3044
3062.6716
7.616%
Q�
48
12.4
91.1
57876.480
7176.6835
10239.3551
25.461 %
`� C%
64
5.2
96.3
137188.693
7133.8121
17373.1672
43.201 %
96
2.8
99.1
463011.840
12964.3315
30337.4987
75.438%
128
0.4
99.5
1097509.547
4390.0382
34727.5369
86.355%
s I
128
0.5
100
1097509.547
5487.5477
40215.0846
100.000%
�" sq -0 i
0 t
40215.0846 Z
Particles 4 microns and smaller make up 22.3% of the total particles but only 0.006% of the
total volume. Since the density of all the particles is assumed the same, then particles
4 microns and smaller represent 0.006% of the mass.
Est. amount of cement washed off each truck 0.5 Ib/CY / �5` 3/Gy�C3YD
Mass of cement washed off trucks 175 lb/day ►/

r 006 too(I 75lyd
r D io
Mass of cement to discharge = Mass of cement washed off trucks each day x /a of mass
Mass of cement to discharge =5 pounds ,
476280 ✓ mg
Total Suspended Solids of Discharge (TSS) = Mass of cement (mg) 1 V3 (Liters)
TSS = 476280 / 889,916
Anticipated TSS (mg/L) = 0.54 mg/L
Maximum TSS (mg/L) = 30 mg/L
Assumes: ✓ �BSar,aGLo
1. No settling of particles 4 microns or less in the holding tank prior to discharge. r
2. No settling of particles 4 microns or less in the bermed area prior to discharge. b aS e;
3. Assumes TSS contribution from stormwater runoff only in Area 3 is minimal due to the
larger particle sizes that would become entrained in runoff and the fact that erosion
should be minimal due to the impervious nature of the area.
Calculate settleable solids discharge
Since TSS is less than 1 mg/L, it is clear that settleable solids will be less than the limit of 5 mg/L.
PH Analysis
See attached Engineers Certification
Evaporation
E = C(es - ed)* where:
E = Evaporation (inches/month)
C = constant based on other variables affecting the rate of evaporation
es = saturated vapor pressure at the temperature of the water surface (inches of Hg)
es1 = saturated vapor pressure at the temperature of the air (inches of Hg)
ed = actual vapor pressure of the air (inches of Hg) = es x relative humidity
C=C1(1 +0.1W)where:
C1 = 15 for monthly evaporation from pans and shallow ponds
W = average wind velocity (miles per hour)
Average surface temperature (degrees F)
Average wind speed (miles per hour)
Average Temperature (degrees F)
Average Relative Humidity (%)
C =
19.5
es =
0.65
es1 =
0.9
ed =
0.63
E =
0.39 inches per month
APPROVED
North Carolina Emrimnir, dill
ManagaMOt CQ=11=10:1
✓ msjon of i►kttQ QU-a.IP i
Date , 20.. ,.
pe tit #

Evaporation of recycle system and bermed area assumed 478 contour full
Surface Area of Holding Bay (sq. ft.) 360
Surface Area of Bays (sq. ft.) 760 (19' x 10' x 4)
Surface Area of 478 Contour (sq. ft.) 4,519
Total Surface Area (sq. ft.) 5,639
Total Evaporation 1,371 gallons per month
46 gallons per day
"Soil and Water Conservation Engineering, second edition.
.` V ED
ss...I4, y"imt'ntO
of V' .; OUAM
20

Hydrograph Plot
3 ST Wooten - Airport Date
Hyd. No. 1 -- 25 Yr Pit#
Hydraf3ow Hydrographs by Intelisolve Monday, May 22 2006, 11:28 AM
Hyd. No. 9
ST Wooten - Airport
Hydrograph type
= Rational
Peak discharge
= 11.75 cfs
Storm frequency
= 25 yrs.
Time interval
= 1 min
Drainage area
= 1.420 ac
Runoff coeff.
= 0.9
Intensity
= 9.196 in/hr
Tc by User
= 1.00 min
IDF Curve
= Raleigh, NC.IDF
Asc/Rec limb fact
= 111
Q (cfs)
12.00
10.00
8.00
6.00
4.00
2.00
0.00
Hydrograph Volume = 705 Euft
APPRwan
Nor(h Caminai�tsi
Management
Divisian of water Qua;;ty
20..
Q (cfs)
12.00
10.00
I X'
4.00
2.00
0.00
(min)

- , 'nmkNT C
EQU'PIWFNT INFOnA4,4
rlou
APPROVED
managamnt Convdwon
Wslon of 1f aW Quarry
DO L4L 20 jj�.
AP?�-ATLANTJ,
Fig& C.

4-4�—�e
Vl,
.15 Ica
, pi
- J
ki.
yy_

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backwash
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SMF2 FILTER SPECIFICATIONS
AA ?
SMF2-20 2/50.80 1/.75 18.0/0.20 43/2.71 350/159 445/202 54/ 37 30/76 66/168
SMF2-24 2/50.80 2/1.5 3.14/0.29 63/3.97 470/213 597/271 54/137 30/76 69/175
SMF2-30 2/50,80 3/2.3 4,91/0.46 98/6.18 740/336 992/451 54/137 35/89 72/183
Note: All three sizes SMF2-20, 24, 30 use molded FRP vessels.
SMF2-36 3/76.20 3/2.3 7.10/0.66 142/8.96 1,550/703 2,041/926 65/165 48/ 22 77/19
SMF2-42 3/76-20 5/3.8 9.60/0.89 192/12.11 2,265/1,027 2,970/1,347 65/165 48/122 77/196
SMF2-48 3/76.20 5/3.8 12,05/1.12 251/15.84 3,875/1,758 4,995/2,266 66/168 48/122 83/211
Note: All three sizes SMF2-36, 42, 48 use wound FRP vessels. -
Note: 'Flow Rates based on 20 gpm/ft2 "Weights and Dimensions are APPROXIMATE
Filter Vessel
Molded FRP (20", 24" & 30") Wound FRP (36", 42" & 48")
Non-ASME, 50 PSIG, with auto air vent, access port and drain
Internal Distribution
PVC (upper / lower)
Filter Media
Unigran-85 (10 micron)
Backwash Initiation
Automatic (24-hour / 7-day clock, differential pressure switch
and manual push button) or Manual (Single Lever)
Backwash Source
Tower / system water or city / external water
Backwash Duration
2 minutes @ 20 gpm / ft2
Face Piping
Schedule 80 PVC
Pump / Motor
System matched centrifugal pump with close -coupled TEFC motor
Control Valves
Bronze 3-way ball valves, mechanically linked
Valve Actuation
Single electric actuator ® 600 in-lbs torque
Electrical Controls
NEMA-0 thermoplastic UL-labeled control panel with lockable
UV -resistant clear access cover, main power disconnect switch,
overload protection, pump motor starter and control voltage transformer
Supply Power
All standard voltages @ 50hz or 60hz (1-phase or 3-phase)
Base / Skid
Fully skid mounted on a 304 stainless steel C4 channel base
Warranty
1 year against defects in materials and workmanship
' ,fir: �.•��. t},�_-
PEP Filters, Inc. Phone [phone] PEP Filters Asia Pte Ltd
322 Rolling Hill Road Fax [phone] Anson Road 433-17
Mooresville, NC 28117-9920 Email: pepusa0pepfilters.com Singapore 079903
Toll Free (800)24-FILTER www.pepfilters.com (65)6225-5339 ex 119
Fax [phone]
Unigran-55 (5 micron)
Remote control via BMS
Auto selection dual source
Includes adjustable timer
Represented by
@2003 PEP Filters, Inc.
Printed in USA

15
Elm �
ENGE4 ERS CERTIFICATION
OF TBE MODEL 5000-S PH
MONITORING AND CONTROL SYSTEM
G.C. Environmental, Inc.
P.O. Box 40125
Raleigh, NC-27629
For:
F'ortrans Inc_
P.O. Box 40
Wended, NC 27591
Dated:
Seotemher 11, 2003

G. Ca Environmental,
Inca
5312 Pinewood Court
,
Wendell, NC 27591'L�
[phone]
September 11,
7003
nEp`3t
<E � ilk•
"�3eEi=S'
PURPOSE
G.C. Environmental, Inc_, was contracted to provide an engineers review and certification that the
Model 5000-5 pH Monitor and Control System manufactured by Coastal Carolina Supply in
Morehead City, NC, could effectively provide on a continuous basis, an average pH range of 6-9
units on the supernate layer of a stormwater/rinse water sedimentation basin typically found at Redi-
m]x concrete facilities.
SCOPE OF WORK
During the week of August l l,2003, G-C. Environmental, Inc., witnessed the operation ofthe Model
5000-5 self-contained pH Monitoring and Control System at a Red] -mix plant located in Durham,
NC. During the two (2) day test program, measurements were made within the facilities
stormwater/rinse water sedimentation basin for pH, temperature and depth (both supernate and
sludge). During the first day of testing, the basin was found to be heavily loaded with solids and
adjustments were made to the solids blanket to complete testing the following day.
TEST METHODOLOGY
A primary sedimentation basin located at a Redi-mix concrete plant located in Durham, NC was
treated utilizing the Model 5000-5 pH Monitor and Control System. During the test program, the
basin was, on a semi -continuous basis, being fed rinse water from the exterior cleaning of cement
trucks. Measurements for pH, temperature, supernate and sludge blankets were made within the
sedimentation basin. Initial pH measurements showed pH levels of at least 12.0 units. The
sedimentation basin was rectangular in shape with concrete walls and bottom- The basin ranged in
depth of i" at the inlet to approximately 3' at the deepest point. Sludge measurements within the
basin showed that at least 2/3 of the basins depth was comprised of sludge and the remainder
supernate.
The Model 5000-5 pH Monitor and Control System was set up at the rectangular sedimentation
basin with the intake and discharge hoses situated at opposite ends of the basin. Both the intake and
discharge lines were set at depths within the supernate layer of the basin. A clockwise flow pattern
was established once the unit bejan operation and pH and temperature measurements were made at
several locations throughout the supernate layer ofthe sedimentation basin. Approximately eighteen
(18) pH and temperature measurements were collected with a mean pH value of 8.56 and mean
temperature values o0.94 0C_ The pH system was left to run essentially on a continuous basis over
f '2
a four (4) hour period. An estimated volume existing within the sedimentation basin was 25, 000

gallons with a little over 9000 gallons consisting of relatively clear supernate. The amount of 25%
Sulfuric acid (H,SO4) used to treat the sedimentation basins supernate was approximately 18-20
gallons.
MODE, 5000-5 PH MONITOR AND CONTROL SYSTEM
The model 5000-S pH Monitor and Control System is comprised of a Hayward Power Flow H (3/4
hp, 56 GPM} centrifugal pump which delivers raw water to a completely contained pH sensor
connected to a pH meter equipped with control relays which operate two (2) stenner (60 GPD) acid
injection pumps. The acid 25%° H,SO4 is injected into the pump discharge line which empties into the
sedimentation basin. Sulfuric acid is delivered to the system by 15 gallon carbuoys located outside
of the fiberglass weatherproof enclosure which houses all of the aforementioned equipment. On top
of the enclosed is an alarm light which is tied into the pH meter which is activated when pH levels
exceed S.5 pH units or are below 6.0 units.
CONCLUSION
1. The Model 5000-S pH Monitor and Control System is an effective system for the pH balancing
of sedimentation basins which are used to collect stormwater runoff and rinse water, commonly found
at Red -mix concrete plants.
2. During the test program an average pH of 8.54 units was measured in the subject sedimentation
basin with a range of 7.95- to 9.3 4 measured.
3. Sludge levels existing within the rectangular sedimentation ranged from 6.0 inches to 2.0 feet. PH
values after pH stabilization at the sludge/supernate interface were approximately 12.0 units
4. For this test program, approximately 180 mg/l of sulfates were added to the sedimentation basin
as a result of pH adjustment with 25% sulfuric acid.
5. The 5000=S pH Monitor and Control System is fully automated and provides a pH adjusted waste
water which could effectively be reused within the Redi-mix concrete industry.

Automatic pH Control Systems
Page 1 o f 3
Fbrtlr,(^2ns.
Manufacturer of Safe Biodegradable Cleaning Chemicals
andpH Control Systems
Concrete Removers
Mortarman Concrete
Remover"
Mortarman One Shot'"
Mortarman Safe Soap"'
Mortarman Sate Soap`" II
Fortrans 400 Truck Wash
Automotive Products
Car Baby Cherry Car Soap
Grease Blaster
Fortrans 400 Car Wash
Slick Trick
Motorcycle Cleaners
HawgWash
pH Control Systems
Model 5000S
Model 5000SK
Information
About Fortrans
Contact us
Request A Quote
Biodegradable Info
Safety
About Us
pH CONTROL SYSTEMS
Toll Free:
877-387-8509
infoAlfortrans0biz
Henry, Virgiliia
Wenllell, North Carolina
Contact Us Request Quote Home
Fortrans pH CONTROL SYSTEMS ARE COMPLETELY AUTOMATIC
They continually monitor/test the pH of the influent water and compares it to the pH setting of the control unit. If a
change in pH is detected, the controller activates the solenoid valve for the CO2. The pH adjustment chemical is
then fed to the return side of the circulation pump until the pH is again at the proper level set at the controller. The
unit will continuously circulate the water until a change in pH is detected and the treatment cycle begins once
again. the unit also features a digital pH meter connected to a probe in the sample cell to ensure unit is functioning
properly and that the correct pH level is maintained.
Our systems offer precise monitoring and control of the pH in settling basins, lagoons
and other outfall containment devices.
The pH CONTROL SYSTEMS will treat up to 57
gallons per minute - max 20' head pressure.
Unique water circulation design eliminates the
need for separate neutralization tank.
1.5" quick connect fittings on inlet and return for
easy hook-up. The standard unit is equipped with
2-20' sections of 1.5" flexible hose with quick
connect fittings. Inlet and outlet fittings at the Basin
or lagoon are per our specifications.
Unit is shipped completely assembled. The
chemical controller is preprogrammed to maintain a
pH of 7.5. Just attach hoses and PVC fittings.
• 1 year warranty on all component parts and .
housing.
The pH CONTROL SYSTEMS are designed
to treat and maintain a specified pH level
in a body of water usually 100,000 gallons
or less to allow the permitted discharge of.
treated water to the environment. Permits
must be obtained from the local governing
agency to allow any discharge to the
environment. Treated water may be used.
for wetting of rock and/or dust control to
aid compliance with storm water run off
regulations. Treated water may be used in
water recycling systems.
http://www.fortrans.bizIPHControl.litm 7/I 9/2005

Automatic pFI Control Systems
Page 2 of 3
Home
pH Control System - Weatherproof Facility
Our Model 5000-S pH Control System
is a self-contained pH monitor and control system housed in a
weatherproof facility with lockable doors and adequate space to
house the instrumentation and circulation pump. The system is
configured for carbon dioxide gas operation.
Iiiiii://www.ft)rtr-,iiis:biz/PHControl.htm 7/ 19/2005

Automatic pt 1 Co►Mtrol Systems
Page 3 of 3
The Model 5000-SK Skid Mounted pH
Control System
contains all of the instrumentation and components of the
regular Model 5000-3 System and is shipped on a 44"x47"
plastic skid with durable solid plastic surface. The Control Panel
is provided loose with all components installed and is designed
to be attached to an interior wall of the control building. The
tuning to the sample cell and from the CO2 solenoid valve to
the Sparger stone fed assembly must be inserted after receipt
of the unit. The systems features a 115V-30Amp Breaker Box
and two GFCi receptacles. The system is shipped with a CO2
feed system.
Copyright Q 2005 - Fortrans, Inc. - 3800 Original Henry Read, Henry, Virginia (VA) 24102
litlp://www.fortraIis.biz/PHControl.litm 7/19/2005

4
Fortransinc.
3800 Original Henry Rd., P.O. Box 759 Henry, Va. 24102 • 877.387.8509 www.fortrans.biz
Mr. Jimmy Washburn
S.T. Wooten Corp.
PO Box 2408
Wilson, NC 27874-2408
Dear Mr. Washburn,
I have enclosed the Engineers Certification of the Model 5000S pH Control
System.
Please note that several changes have been made insofar as manufacturing and
materials used to adjust pH.
Initially, Fortrans Inc had a manufacturing agreement with Coastal Carolina
Supply wherein Fortrans Inc. was responsible for the marketing of the pH Control
Systems and Coastal Carolina Supply was responsible for the manufacturing of
the systems. Fortrans Inc. now designs and manufactures the systems. Coastal
Carolina has signed a non -compete in the design and man ufacture.of-:pH-control
systems for the ready mixed concrete and related industries.
Fortrans Inc. no longer designs systems that use. sulfuric acid to. -lowe=pH;
T_
All of our systems now utilize CO2 feed systems. CO2 is less expensive; safer
and readily available to the industry. = M
Regardless of what chemical is used to control pH, the Model 500U—S--wand bdel
5000Sk (Skid Mounted) work the same way to monitor and control the pH in
settling basins, lagoons, and other containment to effectively control the pH in
those areas.
I appreciate your comments today relating to our systems performance at your
facilities to date and look forward to serving S.T. Wooten Corp. needs in the
future.
Please call me if you have any questions or if I may be of service in any way.
Sincerely,
Robert C. Cooke, Pres.
Fortrans Inc.
Makers of these fine products... • 5000S off Control System • Mortarman'° -Concrete Remover -Safe Soap II' -Safe Soap" - Car Baby -Cherry Car Soap'
-Grease Blaster'° -Truck Wash -Fortrans 400'"-SlicTrick--SuperSlic' -Wood Revive' • Motorcycle Cleaners -Hawg Wash" -Rocket Wash' -Spray Bright"

PROPOSED LOCATION OF PORTABLE PH TREATMENT
Vv ru A, uI I AP.TIn.1 11— v.— —1— — M- n
LEGEND
FLOW DIRECTION FROM BATCH PLANT TO LOWER SEDIMENT POND
Q
SEWER MANHOLE
ca>
POWER POLE
--a--x --
ELECTRICAL LINES
--x—z--x--
FENCE
--x—x---x--
DELIVERY LINE FORM LOWER SEDIMENT POND TO RECYCLE SYSTEM
PROPERTY BOUNDARY
O
PUMP (MINIMUM RATING OF 150 GPM)
CLIENT:
ID —ATLANTIC S.T. WOOTEN CORPORATION
i
ASSOCIATES, INC: _._.
REVISION j j DATE: DRAWN BY: CHECKS) BY: TITLE: SITE MAP
Engineerin , t�L Environmental Solutions AIRPORT PLANT
THIS DOCUMENT TOGETHER WTIH THE CONCEPTS AND DESIGNS PRESENTED HEREIN, AS AN INSTRUMENT OF SERVICE, IS INTENDED ONLY FOR 774E SPECIFIC PURPOSE AND CLIENT FOR WHICH IT WAS PREPARED. REUSE OF AND IMPROPER RELIANCE ON THIS DOCUMENT 409 ROGERS VIEW COURT PHONE: [phone] RALEIOH NORTH CARO LINA
WITHOUT WRITTEN AUTHORIZATION AND ADAPTATION BY MID-ATUWTIC ASSOCIATES, INC. SHALL BE WITHOUT LIABILITY TO MID-ATLAN77CASSOCI4TES, INC. �
RALEIGH, NC 27810 FAx [phone]
n.n ex Lin wn enn• ..,.., .. .. .. _.,.—.......,._,.......,. .,.. ......
1 = 20, 766.9 F72
2 = 61,861.0 FT
3 = 77, 409.6 F72
CG
/o%cah1/--
)6,/eA
DATE. I PROJECT:
SEPTEMBER 2006
�--� auu u uuU WLLJU
s�ornlCticca//ZQr i�' Lc%a 9V wa&t I-relJ
1'5er-ol: /- IV C6 /¢0 2 3S"
ID'-
IREFERENCE FILES: PROJECT NUMBER:
SEAL CHECKED BY*(, M S.T. WOOTEN MAP DATED 5/1/08 AND 040R 1578.02
�"u MID -ATLANTIC FIELD NOTES.
&)(41al /AL -sw
0 50,
SCALE: I *- 50'
lA

LEGEND
O SEWER MANHOLE
POWER POLE
-x-x-x- ELECTRICAL LINES
-x-x-x- FENCE
PROPERTY BOUNDARY
CLIENT:
y '; ID -ATLANTIC S.T. WOOTEN CORPORATION
ASSOCIATES, INC.
REVISION DATE: DRAWN BY: I CHECKED BY: Engineering & Environmental Solutions TITLE: SITE MAP
g g AIRPORT PLANT
THIS DOCUMENT, TOGETHER WITH THE CONCEPTS AND DESIGNS PRESENTED HEREIN, AS AN INSTRUMENT OF SER.7CE, IS INTENDED ONLY FOR THE SPECIFIC PURPOSE AND CLIENT FOR WHICH IT WAS PREPARED. REUSE OF AND IMPROPER RELIANCE ON THIS DOCUMENT 409 ROGERS VIEW COURT PHONE: [phone] RALE IGH NORTH CARO LINA
WITHOUT WRITTEN AUTHORIZATION AND ADAPTATION BY MID -ATLANTIC ASSOCIATES, INC. SHALL BE WITHOUT LIABILITY TO MID -ATLANTIC ASSOCIATES, INC. RALEIGH, NC 27610 FAX.- [phone]
CAD FILE NO. 01-157505-02 1 COMMIGHTM1D-ATLANIICASSOCIATES.INC 2WI
202766.9 FT2
61,861.0 FT
77 409.6 FT
i
DATE: PROJECT:
MAY 2006
HORIZONTAL SCALE:
1 "=50'
VERTICAL SCALE:
DRAWN BY: �7
REFERENCE F S: PROJECT NUMBER:
CHEC T. WOOTEN MAP DATED 5/1/06 AND 000R1 8.02
SEAL: M!D-ATLANTIC FIELD NOTES.
,(> l m � sir
0 50'
SCALE: 1"a 50'
NO:
1A

MID -ATLANTIC
ASSOCIATES, INC.
Engineering & Environmental Solutions
409 Rogers View Courr /Raleigh /Noah Carolina 127610
800-486-7568 1919-250-9918 1919-250-9950 haesirnilc
www,inaaordine.con?
September 25, 2006
Mr. Ken Pickle
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Stormwater and General Permits Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: SUBMITTAL OF REVISED SITE MAP -DRAWING 1A
S.T. WOOTEN CORPORATION — AIRPORT PLANT
FORTUNE WAY
RALEIGH, NORTH CAROLINA
MID -ATLANTIC PROJECT NO.000R1578.02
Dear Mr. Pickle:
O
O
n c
C"iQ;
0
LU
w
z
Attached please find the revised Site Map (Drawing 1A) for the above -referenced facility.
The drawing incorporates changes requested during our telephone conversation of
September 22, 2006. We appreciate the opportunity to submit this additional information. If
you have any questions or need additional information, please do not hesitate to call me at
250-9918.
Sincerely,
MID,-A,TLANTICSSO IATES, INC.
Darin M. McClure, PE
Principal Engineer
cc: Mr. James Washburn, S.T. Wooten Corporation
1578.0219-25-06 DesignAddendum/DMM/aso

ATTACHMENT:
DRAWING 'IA
MTD-ATLANTIC
ASS 0CIATE S.INC.
Engineering & Environmental Solutions

RE: ST Wooien discussion
Subject: RE: ST Wooten discussion
From: "Darin McClure" <[e-mail]>
Date: Fri, 22 Sep 2006 22:24:38 -0400
To: "'Ken Pickle"' <[e-mail]>
Thanks Ken. Very well written memo which summarizes our conversation well.
As always, it was nice to speak with you this morning and discuss the
Airport plant. I also appreciate your patience and willingness to work with
us on this and discuss through the issues. If you have any other questions
on this submittal or anything else in general, do not hesitate to give me a
call.
Darin
-----Original Message -----
From: Ken Pickle [mailto:[e-mail]]
Sent: Friday, September 22, 2006 11:47 AM
To: Darin McClure
Subject: ST Wooten discussion
Hi Darin,
I'm sending you a courtesy copy of my memo to file. If I've missed any
significant points, please let me know. This memo is important to me in
two ways. It will remind me of the specifics of our discussion when I
get your resubmittal. And, it provides a file record of WHY I've
concurred with a couple of unusual aspects of the design,
Thanks for your patience this morning.
Ken
NOD32 1.1284 (20051111) Information
This message was checked by NOD32 antivirus system.
http://www.eset.com
1 of 1 9/25/2006 7:40 AM

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
MEMO
September 22, 2006
To: File, NCG140235
From: Ken Pickle
Subject: ST Wooten Airport plant, RDU
Authorization to construct review
Discussion
I spoke at length this morning with Darin McClure, Mid -Atlantic Associates, the design
engineers for ST Wooten. Several issues revolved around my misunderstanding of the
submittal, and those were resolved to my satisfaction by Darin's verbal explanations.
However, based on other points, I have required a resubmittal with changes to the drawing.
Darin agreed to talk with Jimmy Washburn of Wooten, and as of this morning, he saw no
problems with revising the drawing. My review points with Darin, and their resolutions,
were as follows.
Overall design basis. The submittal is clear that Wooten is seeking an Authorization
to Construct a treatment system based on treatment components intended to insure
that wastewater discharges from the site will be within permit limits. One
wastewater and stormwater discharge point is anticipated at the northwest end of
the site. Darin reports that stibdrainage Area 1 discharges stormwater only by sheet
flow both to undeveloped, land to the south, and to the east into Fortune Way,
2. Site Plan review.
a. Darin will revise the drawing to show that runoff from the batch plant
area flows by swale to the west (not to the south as indicated by the
topo), and eventually into the small pond. This is significant in that otherwise
wastewater from batch plant wash down water may not be captured in the
treatment system.
b. Darin will revise the drawing to show a swale or piped drain from the
truck wash to the recycle system. Otherwise, the topo indicates that the
truckwash wastewater may not flow into the recycle system.
c. Darin will revise the drawing to show the location of the pH treatment
system. The pH treatment system will be a portable unit that is moved into
place to treat the contents of the bermed area, when needed. The bermed
area discharge will be stormwater only most of the time. In the event of a
recycle system discharge into the bermed area, pH will be corrected by the
portable unit prior to any discharge.
d. Darin will revise the drawing to show the location of the small pond
pump and its discharge line to the recycle system.
e. Our discussion included my acknowledgement that field conditions may
require minor changes in location of the collection and treatment system
elements. Such minor changes in location may require a subsequent record
drawing submittal, depending on DWQ's assessment of the significance of the
changes.
No e hCarolina
,/ attrra!!J
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet:. www.newaternuality.ora Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax ' [phone] 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10% Post Consumer Paper

9/22/06 MEMO
'i Pickle to File, NCG140235
Page 2of2
3. Calculations and cut sheets review.
a. We discussed the selection of pump capacity for the pump in the small pond.
I deferred to the designer's professional judgment on it's sizing. However, I
pointed out that the instantaneous peak influent flow was identified as
11.75cfs, but the 150gpm pump could only pump out of the small pond at
0.33cfs, a much lower rate. We discussed the design circumstances that
could occur and that were represented by the selected numerical values,
specifically focusing on the potential for the small pond to be overwhelmed by
a sizable storm, potentially resulting in an unpermitted wastewater discharge.
b. I noted that the sand filter cut sheet was not marked up to indicate which
model sand filter was being proposed. This is a minor point, and I did not
require clarification in a resubmittal.
c. I noted that we normally like to see an automated pH control system.
However, in this installation, the large bermed area will rarely contain
wastewater, and the portable pH treatment unit will be employed only upon
determination of pH values outside the permit limits. Since the flow at that
time will be largely stormwater, the designer proposes that manual
implementation, rather than automatic, is appropriate. I deferred to the
designer's professional judgment.
4. Summary and next steps.
a. The ATC submittal is soundly based, and minor corrections to the drawing will
allow DWQ to issue the Authorization to Construct letter.
b. Darin will make the corrections and resubmit three copies of the site plan,
along with any other revisions that the designer wishes to make.
c. DWQ's Authorization to Construct will reference the submittal and the
drawing. I would informally characterize the drawing as a record of what
Wooten is promising to build on the site for stormwater and wastewater
control. Of course, the ATC does not in any way reduce Wooten's obligation
to comply with the terms and limits of the permit.
d. Assuming no new issues arise, I can turn around the ATC letter within two
working days of receipt of Darin's resubmittal.
Ken

O�OF WArFgpG Michael F. Easley, Governor
William G. Ross Jr., Secretary
' r North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
April 20, 2006
Mr. Darin McClure
Mid -Atlantic Associates, Inc.
409 Rogers View Court
Raleigh, North Carolina 27610
Subject: Additional Information Request
ATC application, NCG140235
S.T. Wooten - Airport Plant
Wake County
Dear Mr. McClure:
On April 12, 2006, the Division of Water Quality, Stormwater Permitting Unit received your
application for an Authorization to Construct treatment facilities at the subject site on Fortune Way
in Raleigh. North Carolina rules require DWQ to conduct an engineering review of your request for
an Authorization To Construct. Some portions of the submittal are unclear to us, and we are
requesting additional information in order to continue processing your application. Please submit
additional information addressing the items listed below.
1. Site Map. Please consider that as reviewers, we can't tell from the Site Map whether the
measures you are proposing are sufficient, or not, because the drawing does not present a
complete picture of the site with respect to our items of interest in a review. Specifically,
we need additional information for the following items:
a. We must know where all the wastewater and stormwater discharge points are - -
they're not shown on the site map.
b. 'We must know where the wastewater flows originate - - the areas of the site are not
labeled so that we can identify where wastewater originates. For most ready -mix
plants we need to see the aggregate piles, the truck wash off station, the recycle
system, the recycle system overflow piping, the batch plant, and the drainage
direction of truck wash off flows and batch plant wash down flows and aggregate
irrigation flows.
c. How were the three subdrainage areas delineated? We would prefer finish grade
topo lines to flow arrows so that we can confirm for ourselves that the measures you
are proposing will indeed capture stormwater runoff and wastewater from the
industrial activity areas of the site.
d. There appears to be an industrial area along the southern property line, adjacent to
Area 1 that has been overlooked as to stormwater runoff. Please reconcile this
apparent oversight.
e. Please provide the design basis for, and design details of, the proposed berm at the
northern end of the property. Has a top of berm elevation been selected to retain a
specific volume of runoff? What elevation? What volume? Is this just a turned up
line of earth?
2. Design calculations, design basis, and design details
a.. We have been told by some other ready -mix permittees that they cannot accept site
runoff as mix water. I mean, they have reported that while drum rinse water may
NorthCarolina
,11aturn!!y
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet; www.newate!nuality.org Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/10% Post Consumer Paper

Mr. Darin McClure
Page 2 of 2
April 20, 2006
be recycled into the mix, runoff from the site can contain non -cement fines that
present a quality control problem in the final product. Please reconcile th'e addition
of runoff water from the lower pond into the recycle system, and from there into the
product mix.
b. The design calculations present a comparison of the total runoff from the 25-year,
24-hour storm compared to the total storage volume available on site, and conclude
that the required volume has been provided. But, the comparison shown in the
submitted calculations assumes that all the volumes (the Lower Pond volume, the
Recycle System bays volume, and the northern bermed area volume) are completely
empty at the time of the design rainfall. I think this is a highly unlikely
circumstance, and based on my current understanding of the calculations presented,
I cannot agree that this design basis will meet the requirement that there be no
discharge from the recycle system in response to the 25-year, 24-hour rainfall. It
seems to me the more likely operating condition is that there will be a continuous
retained inventory in all three storage volumes identified, and that upon the
occurrence of the 25-year, 24-hr design storm, there will be a wastewater discharge
from the site. Please either correct my understanding of the capacity of the system
proposed, or reconcile the proposed measures to comply with the requirement stated
in item 15 of the NOI, "...or must demonstrate that the recycle system has sufficient
capacity to contain runoff from a 25-year, 24-hr rainfall event plus one foot of
freeboard under design operating conditions."
c. In general, we would want to see some quantification and support of any design
assertion that the site water balance will be affected by evaporation or infiltration
from the northern bermed area. Further, we are concerned that with time and in
response to the intended dumping of waste concrete in the northern bermed area,
there would be cement fines deposited in the bermed area resulting in little if any
infiltration from that area.
d. -Will aggregate pile irrigation be accomplished with recycle water in part, or entirely?
3. Finally, please note that we need three copies of any re -submittal.
Please call me before your re -submittal so that we can go over verbally your response to our
request for additional information.
Sincerely,
Ken Pickle, P.E.
DWQ Stormwater Permitting Unit
[phone]x584
cc; Raleigh Regional Office
SPU files
DWQ Central Files
Jimmy Washburn, S.T. Wooten Corp., POB 2408, Wilson, NC 27894-2408

MID -ATLANTIC
ASS 0CIATE S,INC.
Engineering & Environmental Solutions
409 Rogers Vew Court /Raleigh /North Carolina 127610
800-486-7568 1919-250-9918 1919-250-9950 Facsimile
wwiuruaanuline. com
April 5, 2006
Mr. Ken Pickle
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Stormwater and General Permits Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: PLANS AND SPECIFICATIONS
S.T. WOOTEN CORPORATION -- AIRPORT PLANT
FORTUNE WAY
RALEIGH, NORTH CAROLINA
MID -ATLANTIC PROJECT NO. 000R1578.02
Dear Mr. Pickle:
ft//'
IV,! �;/ 4 6 Z 3 5
Attached please find three sets of conceptual plans, specifications and supporting
,-,documentation for the proposed recycling system at the above referenced site. The objective
of the proposed recycle system is to recycle the process water generated at the facility along
with a majority of the stormwater. It is our understanding that after review and approval of this
,'submittal, an Authorization to Construct (ATC) will be issued by your office. Several things to
highlight are included below. �an�%�-m� doe
• Runoff from drainage area 2 at the site (Drawing 1) will flow/into the lower pond, where
it will be pumped to the recycle system. (Sfpr�,�'�� r z­as�ewafc�� ir/ol`r�a
• The lower pond will have the capacity to contain runoff from the 25-year storm event.
Therefore the pump for this pond was sized to handle the average intensity of the 25- L�
j,��s s year/24-hour rain event. This should ensure- that the pond does not overflow as a
P ���"` �r iesult oof ei rain event as water is pumped to the recycle system. - f� r-e. J w ��
• Runoff from drainage area 3 (or in the event the recytem overflows will flow to J '
? and be contained at the northwest portion_of the_site wh re the water will evaporate, P�43
��,�nf`� infiltrate into the subsurface, r bc� e manually�aumped to the recycle system. ,�-----------.,
No industrial activities are scheduled to take plain drainage area 3 other than truck �' ��� pan
�l~a was out activities. Trucks will wash out directly -into the first bay of the recycle system.
pr r' 0 ' o Sediment removed from the recycle system will be staged in area 3 and allowed to 6&- t✓ ��
o � harden. Once it hardens, the material will be taken off site for beneficial fill. Material boc&. y Ff
will be removed from the system during -dry periods.
• The total volume of storage available at the site exceeds the amount -of -runoff
calcrilated for the 25-year/24-pour rain event, �6r� 0��� ; ezr \ >•s
//`I/���..' ✓�S�vr1 !'d�n1"� his (a..5 � �_S. �/ �����,rJn�� ��si ��� f��� ��r✓
,�'a�i�c�r; felt ��y"2��r �din�/j �S '�' ✓�'�/ �c,ck-fo-la�Y'r� �u�l- fi�in�

Plans and Specifications
S. T. Wooten Corporation — Airport Plant
Fortune Way
Raleigh, North Carolina
April 5, 2006
Page 2
We appreciate your assistance with this matter. If you have any Questions or need additional
information, please do not hesitate to call me at 250-9918.
Sincerely,
MID -ATLANTIC ASSOCIATES, INC.
Darin M. McClure, PE
Principal Engineer
cc: Mr. James Washburn, S.T. Wooten Corporation
1578, 0213-9-06 Design Cover Letter/ DMM/aso
MID -ATLANTIC
ASS OC 1 ATFS.INC.
Engineering & Environmental Snlurians

ATTACHMENT
DRAWINGS
MID -ATLANTIC
ASS 0CIATFS.INC.
Engineering & Environmental Sohrlions

-------------------
----------------------------
------------------------------
-------------------------------
/ - _- =__=- ___
/- ==_ = __ _______=_
f- = = __ - -_- =- - -- --- = ------===--=
------------�=--==-====== 1
______ _�--_y
-------- �\- 1
1 I =_==
=__
PROPOSED
LOCATION OF
-CYCLE SYSTEM
00
LOWER
POND
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LEGEND
y DRAINAGE FLOW DIRECTION
-■—■--■-- FENCE
PROPERTY BOUNDARY
AREA OF DRAINAGE AREA 1 - 7325 50. FT.
- - - - - - - - - - - AREA OF DRAINAGE AREA 2 - 58362 90. FT.
T --- - AREA OF DRAINAGE AREA 3 - 108311 SQ. FT.
AREA - 36629 SQ. FT.
ID -ATLANTIC
ASSOCIATES, INC.
Engineering & Environmental Solutions
'i Nr qve
AREA 2 �`
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CONCRETE r
MIXER ,
J
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• _I� BUILDINGS �1
STORAC�� AREA 1
x pS�
acy*wd
SITE MAP
S.T. WOOTEN CORPORATION
AIRPORT PLANT
RALEIGH, NORTH CAROLINA
Cif
0 so'
SCALE: 1 80'
DRAWN DATE: MARCH 2O06
BY.
DRAFTING CHECK,.. ,, BY: (� JOB N0: OOOR t 578.02
ENGINEER CHE
BY: CAD O t —1578D t —02
APPROVED
BY: fnpjp4 DWG NO: 1
REFERENCE:

AN*- WASTE OUTLET (BACKWASH)
s-�-i-
_ FILTER INLET
V I �EECC—E C E�E —
HOLDING TANK
EQUIPMENT SAND ^
BUILDING FILTER WITH -
PUMP FILTER
OUTLET n
PUMP
< < ON
BACKWASH
INLET
P] Inl
JE
E E LS PUMP PUMP
OFF OFF
O
13" SCH 40 PVC
MUNICIPAL
WATER SUPPLY
NO
TO PLANT
LEGEND
NO
NORMALLY OPEN
NC
NORMALLY CLOSED
01
BAY NUMBER
®
BACKFLOW PREVENTER
BALL VALVE
CHECK VALVE (ARROW INDICATING FLOW DIRECTION)
p
PUMP
PRESSURE GAUGE
O
LEVEL SWITCH
FLOW DIRECTION
ELECTRICAL CONTROLS
/lforrr.61 a yhP'- Jh dr, ( ?) / .s d�
3" SCH 40 PVC
rE E—TE�
n
n
8" Ty?
^
IM
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I� A P?NED ON
7eG. L QQ _/ PUMP
f
l2 to �n/.Y. ,�?U � !P�',�e /y%/X r� � OFF
�`U'�s
$log
R
NOTES: 6 . S
1. ALL PIPING 2" SCH 40 PVC UNLESS OTHERWISE NOTED.
2. CONCRETE- 4000 psi
3. PUMPS- SUMMIT MODEL CC 2.5 K 3-8; MOTOR WEG XODEL #02036ES3E256 JM OR EQUIVALENT
4. SAND FILTER- PEP FILTERS MODEL# SMF30-A- -F EQUIVALENT. 4 10'
5. LOWER ELEVATION OF EXIT PORT FROM BAY 1 6' 3/4-)FROM BAY BOTTOM,
LOWER ELEVATION OF EACH SUBSEQUENT BAY /4" LOWER THAN PRECEDING BAY,
6. BACKWASH CYCLE CAN BE SET TO OPERATE VIA A TIMER OR MANUALLY, SCALE: 1 "= 10'
CV
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3d43ti S d CP 0 5.
SCALE: 1 "= 5'
II) -ATLANTIC S.WOOT>=N CROSS—SECTION
CORPORATION DRAWN f DATE: MARCH 2006
BY: -/
MASSOCIATES, INC. AIRPORT PLANT DRAFT roe No: 000R�s�a.o2
CHECK: l�i'"f i1'J
Engineering & Environmental Solutions RALEIGH, NORTH CAROLINA ENG 7� CHECK: CAD NO:. 01-157802--02
i
REFERENCE: MID —ATLANTIC FIELD NOTES. APPROVAL: i,Q IR+[E'� DWG NO; 3

BUILDING
HOLDING TANK
r
"41
•
r e
!
�
i
{
�. iGIN JQ-
LEGEND
0 10'
O1 BAY NUMBER,
bmImmw
SGALE: 1 "= 40'
ID -ATLANTIC
PROFILE VIEW
WOOTEN
)
BY:
DATE: MARCH 2006 ,
ASSOCIATES, INC.
s.T..' CORPORATION
AIRPORT PLANT
CHECK:
cos NO: OOOR1578 02
Engineering & Environmental Solutions
RALEIGH, NORTH CAROLINA
ENG
CAD NO: 01-157803-02
CHECK: ���
REFERENCE: MID -ATLANTIC FIELD NOTES.
APPROVAL: JAB
DWG N0: 4

ATTACHMENT B
CALCULATIONS AND SUPPORTING DOCUMENTATION
TLANTIC
lV1ASS0CIATES,INC.
Engineering & Environmental Solutions

ST Wooten - Airport Plant Calculations
Performed by: D
Checked by: ��� ;,5t 5
U1 4, ,
Process Wastewater Generated vs. Water Used at the Site (ThroughputlWater Balance)
Average work day = 10 hours
Wash water produced = 5 gal/CY (Truck and plant washdown)
Capacity of plant = —3 QCYLday �r ��/B�J�le n���C2�y 9e�G�8f n2c�
Wash water per day - 1750 gallons d�L 4,_�,�
1 gallon = 0.133681 cf
Wash water per day 234 cf
Water/cu. Yd.
of concrete = 30 gallons Gt SPd �; fh G yy� i j� .? f�as
Water Use/Day = 10,500 gallons ���" clq a
Water needs exceed amount of wastewater produced each day.
Volume of Lower Pond Associated with Drainaae Area 2 (V1
Width (ft.) 15 I X 2 0 3
Length (ft.) 20
Depth (ft.) 3
Volume (cu. Ft.) 900
Volume (gallons) 6,733 ✓ 1 cu. Ft. = 7.481 gallons
Volume of Washdown/Recvclina Pit M
Number of Bays 5
Bay Width (ft.) 10
Effective Depth (ft.) 9 Depth Before Overflow of Bays
Length of Bottom (ft.) 6 ,,Length of Flat Bottom
Slope (x to 1) 2 r
Volume of Each Say (cu. Ft.) 1350✓
Volume (gallons) ;10,099 Vb1
Width of Holding Tank (ft.) 15
Length of Holding Tank (ft.) 24
Depth of Holding Tank (ft.) 11.
Volume of Holding Tank (cu. Ft.) 3,960
Volume (gallons) 29,625
r�
V2 = J80,1221,\g�allons (No. Bays x Volume Bay) + Volume Holding Tank
Lb
�,*9 x /o`
yy 1gx9 ri.lo
R
54 0

6"S1�
n
Calculate freeboard available for rain event
Calculation assumes holld�ipg tank full of recycled.water at start of rain event and overflow
would occur from bays 1-5.
Working Depth (ft) Max. Depth of Water During Operation
Bay Surface Area (Sq. Ft.) i✓
System Surface Area (Sq: Ft.) 2 95b I K log x 5 �� Y 9SD sf
Volume -- Each Bay_(cu�Ft.} (I b w)( (�� d)(i2`?
Volume (gallons) 5,386 Vb2. / �4 ��,'��
C. bar
Freeboard (gallons) 5 b 23,565 (#-bays' Vb1) - (# bays ` Vb2)
Volume Contained by Bermed Area of Site (V3) e
Estimated Area (sq. ft.) 36,629 0, g4 A
Estimated Average Depth (ft.) 2.25 ( c, -- 5, ,C�� 16 ��
Estimated Volume (cu. Ft.) 82,415
Estimated Volume (gallons) 616,548 ✓ 1/.3
Total Volume of Storage Available on Site (V)
V = 703,403 gallons (V1+V2+0) l�I6 v z
__ 88% v 3
Storage (S) = (100 CN) - 10 where:
CN = 95 1 Runoff Curve Number
S= 0.
Q' _ [(P - 0.25)^2] / [P + 0.8S) where:
Q" = effective runoff repth in inches
P = precipitation in i hes = 6.5 25yr124hr storm
S = storage in inche
I v � •er p�� ci CdSS�`�JeJ
�assurrp�
Q" = 5.91 inches
Volume of Runoff fro n storm (Vt) = Q" (ft.) x Area of Site (sq. ft.)
Total Area of Site = 166,873 sq. ft7 p
Vt = 82163 gu. Ft.
Vt = 614;664 allons
Total volume of storage on site is greater than total volume generated during 25yr124 hr storm.
/�di�'7 v�GCtB�s
V
/� ¢17zn

Sizing the Small Pond and Pump
Check intensity and volume of 24-hour storm.
Volume for 25 year storm = 665 cu. Ft. (See Hydrograph)
Volume for 25 year storm = 4975 gallons
Volume of Small Pond > Volume from 25-year storm. Therefore, pond should be able to
capture this rain event withou overflowing. Base pump size n 25 yr124 hr event.
Q" for 25 yr/24 hr event = N6-
inches
Area 2 (sq. ft.) = 58,2 ft.
Volume (cu. Ft.) = 28,834
Volume (gallons) = 215,709 (gal ns per 24 hour period)
Rate = 150 (gallon inute)
Rate pump at 150 gpm at 25 feet of head.

Hydrograph Plot
Hydraflow Hydrographs by Intelisolve
Hyd. No. 1
ST Wooten - Airport
Monday, Jan 23 2006, 12:0 PM
Hydrograph type
= Rational
Peak discharge
= 11.09 cfs
Storm frequency
= 25 yrs
Time interval
= 1 min
Drainage area
= 1.340' ac
Runoff coeff.
= 0.9
Intensity
= 9.196 inlhr
Tc by User
= 1.00 'min
OF Curve
= Raleigh, NC.1DF
Asc/Rec limb fact
= 111
Q (cfs)
12.00
10.00
e
. �1
4.00
P0111
M
ST Wooten - Airport
Hyd. No. 1 -- 25 Yr
Hydrograph Volume = 665 cult
Q (cfs)
12.00
10.00
M.
OM
4.00
2.00
M
(min)

Summit Pump Inc.
• r
Seleist:—�`
Pump: 2.5x3-8
e�-G -&FM
Speed: 1750 rpm
Synch speed: 1800 rpm
Dia: 6.375 in
Impeller:
Curve no.:
Specific Speeds:
Ns: —
Nss: —
Dimensions:
Suction: 3 in
Discharge: 2.5 in
Pump Limits:
Temperature: -- °F
Power: — hp
Pressil— s'
Eye area: 6.5 in
Sphere size: 0.5 in
Motor:
Size: 2 hp
Standard: NEMA
Speed: 18
Enclosure: TEFL
Frame: T
PUMP DATA SHEET 03/09/06
Summit CCFM.60 Vers:.1
Summit
Search Criteria:
Flow: 150 US gpm
Fluid: Water at 60 °F
SG: 1
Viscosity: 1.105 cP
NPSHa: — ft
Advanced Criteria: none specified
g1, Powered By
%1.Q�J1VJl.� P`H' L0'
Head: 30 ft
Vapor pressure: 0.2563 psi a
Atm pressure: 14.7 psi a
Sizing Mena: Max Power on Design C e �-
---- Data Point ----
Flow: 150 US gpm
Head: 30.5 ft
Eff: 79%
er: 1.46 hp
NPSNr: 7.55 ft
-- Design Curve --
Shutoff Head: 35.7 ft
Shutoff dP: 15.4 psi
Min Flow: 103 US gpm
BEP: 79% eff
@ 159 US gpm
NOL Pwr: 1.63 hp
@ 204 US gpm
-- Max Curve -- .
Max Pwr: 4.07 hp
@306USgpm
PUMP-FLO 2004
Performance Evaluation:
Flow
Speed
Head
ft
Pump
Power
NPSHr ^
,1J
US gpm
rpm
%eff
hp
ft
180
1750
27.2
78
1.57
9.28 •
150
1750
30.5
79
1.46
�i
7.55 a 4�P Lt9 /J��Sa
120
1750
32.9
76
1.31
6.27 ' -alve e-►� a�r�y+�, y ?
90
1750
—
—
—
---
60
1750
—
—
—
fo
1d'r-'"�-A

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCGNCG140235
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission,
and the Federal Water Pollution Control Act, as amended,
S T Wooten Corporation
is hereby authorized to operate a process wastewater treatment system, and is hereby authorized to
discharge process wastewater and stormwater from a facility located at
S T Wooten Corp -Raleigh Airport
9001 Fortune Wayf
Raleigh
Wake County
to receiving waters designated as a UT of Sycamore Creek, a class B NSW stream, in the Neuse River
Basin in accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts 1, II, III, IV, V, and VI of General Permit No. NCG 140000 as attached.
This certificate of coverage shall become effective August 1, 2004.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 1, 2004.
for Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management
Commission

NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor
August 4, 2004
James Washburn
S T Wooten Corporation
PO Sox 2408
Wilson, NC 278942408
William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., Director
Subject: NPDES Stormwater Permit Coverage Renewal
S T Wooten Corp -Raleigh Airport
COC Number NCG 140235
Wake County
Dear Permittee:
In response to your renewal application for continued coverage under general permit NCG 140000 the Division of
Water Quality (DWQ) is forwarding herewith the reissued stormwater general permit. This permit is reissued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between the state of North Carolina and the U.S. Environmental Protection Agency, dated December fi, 1983.
The following information is included with your permit package:
• A new Certificate of Coverage
• A copy of General Stormwater Permit NCG 140000
• A copy of a discharge monitoring report form
• 5 copies of the qualitative monitoring report form
Your coverage under this general permit is not transferable except after notice to DWQ. The Division may require
modification or revocation and reissuance of the Certificate of Coverage. This permit does not affect the legal
requirements to obtain other permits which may be required by the Department of Environment and Natural
Resources, or relieve the permittee from responsibility for compliance with any other applicable federal, state, or
local law, rule, standard, ordinance, order, judgment, or decree.
If you have any questions regarding this permit package please contact Aisha Lau of the Central Office Stormwater
Permitting Unit at [phone], ext. 578.
Sincerely,
for Alan W. Klimek, P.E.
cc: Central Files
Stormwater Permitting Unit
Raleigh Regional Office
Surface Water Protection Section
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 N. Salisbury St., Raleigh, North Carolina 27604
Phone: [phone] FAX [phone] Internet: httpalh2o.enr.state.nc.us/su/stormwater.html
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper
NorthCarolina
;Vaturally

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
Kerr T. Stevens, Director
PHIL ADAMS
RALEIGH AIRPORT
P.O. BOX 2408
WISLON , NC 27894
Dear Permittee:
NCDENR
NORTH CAROLTNA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
July 26, 1999
Subject: Reissue - NPDES Stormwater Permit
Raleigh Airport
_. COC Number NCG140235
Wake County
In response to your renewal application for continued coverage under general permit NCG140000, the Division of
Water Quality (DWQ) is forwarding herewith the reissued stormwater general permit. This permit is reissued
pursuant to the requirements of North Carolina General Statute 143-215.1 and the Memorandum of Agreement
between the state of North Carolina and the U.S. Environmental Protection Agency, dated December 6, 1983.
The following information is included with your permit package:
* A copy of general stormwater permit NCG140000
* A Stormwater Pollution Prevention Plan (SPPP) Certification Form. Completion of this form is required to
certify that you have developed and implemented the SPPP as per the conditions of the permit. This form
must be completed and returned to the Division within 30 days of receipt of this letter.
DO NOT SEND the SPPP with the signed form.
* Five copies of the Analytical Monitoring form and five copies of the Qualitative Monitoring form
* A copy of a Technical Bulletin for the general permit which outlines changes in the permit, key requirements,
and addresses frequently asked questions
* A Certificate of Coverage
Your coverage under this general permit is not transferable except after notice to DWQ. The Division may require
modification or revocation and reissuance of the Certificate of Coverage. This permit does not affect the legal
requirements to obtain other permits which may be required by DENR or relieve the permittee from responsibility
for compliance with any other applicable federal, state, or local law, rule, standard, ordinance, order, judgment, or
decree. -.-
If you have any questions regarding this permit package please contact Aisha Lau of the Central Office Stormwater
and General Permits Unit at [phone], ext. 578
Sincerely,
for Kerr T. Stevens
cc: Central Files
Stormwater and General permits Unit Files
Raleigh Regional Office
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] Fax [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140235
STORMWATER AND PROCESS WASTEWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
RALEIGH AIRPORT
is hereby authorized to operate a process wastewater treatment system, and is hereby authorized to discharge process
wastewater and stormwater from a facility located at
RALEIGH AIRPORT
9001 FORTUNE WAY
RALEIGH
WAKE COUNTY
to receiving waters designated as a UT of Sycamore Creek in the Neuse River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, 1I, III,
1V, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall become effective August 1, 1999.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day July 26, 1999.
for Kerr T. Stevens, Director .
Division of Water Quality
By Authority of the Environmental Management Commission

;�A
-State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary
A. Preston Howard, Jr., P.E., Director
October 28, 1997
Mr. George R. Strickland
S. T. Wooten Corporation
P O Box 2408
Wilson NC 27894-240�
I 099AA
T4
IDEHNR
Subject: Permit Modification - Name Change
S.T. Wooten Corporation
(formerly Capital City Ready Mixed Concrete)
Permit Nos. NCG140233, NCG140234,
NCG 140235, NCG 140236 and NCG 140237
Wake County
Dear Mr. Strickland:
In accordance with the Permit Name/Ownership Change Forms you recently submitted, we are
forwarding the modified Certificates of Coverage for the subject facilities. The changes in these permits
are with respect to ownership only. All other terms and conditions in the original permits remain
unchanged and in full effect. These Certificates of Coverage are issued pursuant to the requirements of
North Carolina General Statute 143-2t5.1 and the Memorandum of Agreement between North Carolina
and the U. S. Environmental Protection Agency dated December 6, 1983.
If any parts, measurement frequencies or sampling requirements contained in the permits are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such request is made, thes certificates of coverage shall be final and binding.
Please take notice that the certificates of coverage are not transferable except after notice to the
Division of Water Quality. The Division of Water Quality may require modification or revocation and
reissuance of the certificate of coverage.
These permits do not affect the legal requirements to obtain other permits which may be required
by the Division of Water Quality or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required. If you have any
questions, please contact Steve Coerper at 9191733-5083, extension 361.
Sincerely,
tk
A. Preston Howard, Jr., P.E.
cc: Raleigh Regional Office, Water Quality Section
Central Files
Permits and Engineering
P.O. Box 29535, Raleigh. North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE NO. NCG140235
STORMWATER DISCHARGES
NATIONAL_ POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
S.T. Wooten Corporation
is hereby authorized to discharge stormwater from a facility located at
RDU, Plant #3
9001 Fortune Way
City of Raleigh
Wake County
to receiving waters designated as an unnamed tributary to Sycamore Creek, a class B NSW stream in the Neuse River
Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts 1, II, III
and TV of General Permit No. NCG 140000 as attached.
This Certificate of Coverage shall become effective October 28, 1997.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 28th day of October, 1997_
I & K, 2 � -6�1-1 &-1) -9V I
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

State of North Carolina
Department of Environment,
Health and Natural Resources
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
WATER QUALITY SECTION
PERMIT NAMEIQWNERSHTP CHANGE FORM
Permit umber: I tj I C IGI l I 4 0 2 13 1 5
1. Permit holder's
L
2. Permit's signing official's name and
Al I X
06
C k- #OB-)-31-i
lc,,-X'�-9-1
Ste V ICE
Trson legally resporoble for permit)
,o .
3. Mailing address,• 5701
GERYL R opip
City, �
ALCI6 H
State: 0, C
Zip code; ' 7 6 0 6 �
Phone:
( 919 ) S ? I =..a y/ s
4•13 Ell W e
1. This request for a name change is a result of:
iY a Change in ownership of property/company
---b. Name change only
LC _c. Other (please explain): S•T• jLkLoQTgo Co R!'oR;g loo PhLE 16u A i RQ oR-T _
Cz>oczt rr- No.
9.00i FDA ouc �}�Y
RALir1G�-11_ W�kE,. Cocs,�T7b0RTN GARS"j#Ja
2. New owner's name (name to be put on permit): S • T o E --) D X r a
3. New owner's or signing official's name and title:
--
4. Mailing address: I � 0'� a 4 � � .City: �,, L, s (D A. State- Zip Code: 2-70'? •4 Phone: (ql? ) 121 `t 1 —

THIS APPLICATION PACKAGE WILL NOT BE ACCEPTED BY THE DIVISION OF
ENVIRONMENTAL MANAGEMENT UNLESS ALL OF THE APPLICABLE ITEMS
LISTED BELOW ARE INCLUDED WITH THE SUBMITTAL.
REQUIRED ITEMS:
1. This completed application
2. Processing fee of $100.00 (Checks to be made payable to DEHNR)
3. If an ownership change, legal documentation of the transfer of ownership (such as a contract, deed,
articles of incorporation)
CERTIFICATION MUST BE COMPLETED AND SIGNED BY BOTH THE CURRENT
PERMIT HOLDER AND THE NEW APPLICANT IN THE CASE OF CHANGE OF
O«'NERSHIP. FOR NAME CHANGE ONLY, C0MPLETE AND SIGN THE
APPLICANT'S CERTIFICATION.
Current Permittee's Certification:
I, 1 f e , attest that this application for name/ownership change has been
reviewed anis accurate and cq plete to the best of my knowledge. I understand that if all required parts
of this applic are not completed and that if all required supporting information and attachments are not
included, thi�lication package; ill be returned as incomplete.
Signature: Date;
Applicant's Certification-.
I, 49EO R GE R- STIE1 * 10 , attest that this application for a name/ownership change has been
renewed and is7are�
and complete to the best of my knowledge. I understand that if ail required parts
of this applic f mple and that if all uired supporting information and attachments are not
included, this . w�turneincomplete.
THE COMPLETED APPLICATION PACKAGE, INCLUDING ALL SUPPORTING INFORMATION
AND MATERIALS, SHOULD BE SENT TO THE FOLLOWING ADDRESS:
North Carolina Division of Environmental Management
Water Quality Section
Permits and Engineering Unit
P.O. Box 29535
Raleigh, North Carolina 27626-0535
Telephone: [phone]
Fax: [phone]

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140235
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-215.I, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
Capital City Ready Mixed Concrete Company
is hereby authorized to discharge stormwater from a facility located at
Capital City Ready Mixed Concrete Company - RDU, Plant #3 !
9001 Fortune Way
Raleigh
Wake County
to receiving waters designated as an unnamed tributary to Sycamore Creek, a class B NSW stream in the Neuse
River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts 1, II, 11I
and IV of General Permit No. NCG 140000 as attached.
This Certificate of Coverage shall become effective August 23, 1996.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 23, 1996.
_J�144""uy
-&�
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

&idte-af North Carolina
Department of Environment,
Health and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary
A. Preston Howard, Jr., P.E., Director
August 23, 1996
Paul Hobson
Capital City Ready Mix -Plant 3
P.O. Box 33787
Raleigh, NC 27606
VA
IT
i••
000w�%% T
D FE F1
Subject: General Permit No. NCG 140000
Capital City Ready Mix -Plant 3
COC NCG 140235
Wake County
Dear Paul Hobson:
In accordance with your application for a stormwater discharge permit received on June 3, 1996, we are
forwarding herewith the subject certificate of coverage to discharge under the subject state - NPDES general
permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-215 .1 and the
Memorandum of Agreement between North Carolina and the US Environmental Protection agency dated
December 6, 1983.
The stormwater permit you are receiving, NCG140000, does not permit wasting concrete, dumping excess
concrete, directly into storm sewer outfalls or into waters of the state. Any facility which either dumps excess
concrete or washes excess concrete into storm sewers or waters of the state will be operating in direct violation to
both the terms of this permit and the North Carolina General Statutes. Such a discharge shall be considered an
illegal discharge and may subject the owner to enforcement actions in accordance with North Carolina General
Statutes 143-215.6A
If any parts, measurement frequencies or sampling requirements contained in this permit are unacceptable to
you, you have the right to request an individual permit by submitting an individual permit application. Unless
such demand is made, this certificate of coverage shall be final and binding.
Please take notice that this certificate of coverage is not transferable except after notice to the Division of
Environmental Management. The Division of Environmental Management may require modification or revocation
and reissuance of the certificate of coverage.
This permit does not affect the legal requirements to obtain other permits which maybe required by the
Division of Environmental Management or permits required by the Division of Land Resources, Coastal Area
Management Act or any other Federal or Local governmental permit that may be required.
If you have any question concerning this permit, please contact MS. AISHA LAU at telephone number 9191
733-5083, extension 578.
Sincerely, �it;;GBY
1?WDLEY BEN EiT
A. Preston Howard, Jr. P.E.
cc: Raleigh Regional Office
EPA
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140235
STORMWATER DISCHARGES
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
In compliance with the provision of North Carolina General Statute 143-2t5.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and the
Federal Water Pollution Control Act, as amended,
Capital City Ready Mixed Concrete Company
is hereby authorized to discharge stormwater from a facility located at
Capital City Ready Mixed Concrete Company - RDU, Plant 43
9001 Fortune Way
Raleigh
Wake County
to receiving waters designated as an unnamed tributary to Sycamore Creek, a class B NSW stream in the Neuse
River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth in Parts I, 11, III
and IV of General Permit No. NCG 140000 as attached.
This Certificate of Coverage shall become effective August 23, 1996.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 23, 1996.
BRp,Egi.L--Y BENWEI '
A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

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781°45. 704 2080000 FEET54-1Tr+FIEL0,3850r. 706 4230"
4' 5 Mapped, edited, and published by the Geological Survey
1
GA��s Control by USGS, NOSINOAA, and North Carolina Geodetic Survey
\ gg MN _ 1
h� Topography by photogrammetric methods from aerial photographs cN
taken 1965, Field checked 1967
� ..j
Polyconic projection. 10,000-foot grid ticks based on North Carolina 7e124 MIL ! 1°21
Coordinate system. 1000-meter Universal Transverse Mercator grid 24MIL5
ticks, zone 17, shown in blue. 1927 North American Datum
To place on the predicted North American Datum 1983 move
the projection lines 12 meters south and 23 meters west
as shown by dashed corner ticks UTM GRID AND 1997 MAGNETIC NORTH
DECLINATION AT CENTER OF SHEET
Fine red dashed lines indicate selected fence and field lines where

FACILITY Ca r' �a f Ci, 7 ��� %��; Xe� Coh C� e A AIU
COUNTY
NPDES ly 0 3
MAP
DSN FLOW
SUB BASIN Q3" 0Z1 — 02
LATTITUDE 3 6-4 5 3 Z10"
LONGITUDE
ti
RECEIVING STREAM
STREAM CLASS
;e.
DISCHARGE CLASS S'�rrh wA ler
EXPIRATION DATE 7131141