NCG140396_COMPLETE FILE - HISTORICAL_20170802

STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
DOC TYPE
HISTORICAL FILE
❑ MONITORING REPORTS
D OC DATE
❑ pDD ) -7 O
YYYYMMDD

Central Files: APS , SWP s�
7h 8/2017
Permit Number NCG140396 Permit Tracking Slip
Program Category
Status
Project Type
NPDES SW
In review
New Project
Permit Type
Version
Permit Classification
Ready Mix Concrete StormwaterMastewater Discharge COC
CDC
Primary Reviewer
Permit Contact
Affiliation
ken.pickle
444��� c
RECy..,` I V/ E0
Coastal SWRule
AUG 0 2 2017
Permitted Flow
CENTRAL FILES
DWR SECTION
Facility
Facility Name
Major/Minor
Region
DPD Team Concrete-Grantsboro
Minor
Washington
Location Address
County
622 New Ditch Rd
Pamlico
Grantsboro NC 28529
Owner
owner Name
Dpd Team Concrete
Facility Contact Affillation
Tim Blackstock
622 Now Ditch Rd
Grantsboro NC 28529
Owner Type
Non -Government
Owner Affiliation
David Hardee
PO Box 1639
Dates/Events
Winterville
NC 28590
Scheduled
Orig Issue App Received Draft Initiated Issuance
Public Notice la ue
Effective
Expiration]
1211612009
A
� (/I `
gl/It*7
�1�0/t d2Z
Regulated Activities
Requested /Receiv``edEvents
Ready mixed concrete - stormwater discharges
RO staff report received
RO staff report requested
Outfall 001
Waterbody Name Streamindex Number Current Class Subbasln
South Prong Bay River 27-150-3 SC;Sw,NSW 03-04-13

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
August 1, 2017
Mr. David Hardee
DPD Team Concrete, Inc.
P.O. Box 1639
Winterville, NC 28590
ROY COOPER
Governor
MICHAEI, S. REGAN
Serrelnrc
TRACY DAVIS
Ui, eery„
Subject: General Permit No. NCG140000
DPD Team Concrete - Grantsboro
COC No. NCG140396
Pamlico County
Dear Mr. Hardee:
We recently discovered that we failed to issue a permit for this facility when it was initially applied
for and reviewed in 2008. We sincerely apologize for this oversight. In accordance with your
application for a discharge permit received on August 26, 2008, we are forwarding herewith the
subject certificate of coverage (COC) 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 October 15, 2007 (or as subsequently amended).
Please take notice that this certificate of coverage is not transferable except upon approval of the
Division of Energy, Mineral and Land Resources. The Division of Energy, Mineral and Land
Resources 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 Division of Energy, Mineral and Land Resources, the Coastal Area Management Act, or any other
federal or local government permit that may be required.
Per the requirements of the Neuse Riparian Buffer Rule, all stormwater drainage to stream buffers,
from portions of this site that have been constructed after July 22, 1997, must meet diffuse flow
requirements per 15A NCAC 2B .0233. Diffuse flow requirements are described in Chapter 8 of the
North Carolina Stormwater BMP Manual, available at: htt :Ilde .nc. ov/about/divisions/ener -
mineral-land-resources/energ_y-mineral-land-permit-guidance/stormwater-bmp-manual.
State of North Carolina I Envirotunental Quality I Energy, Mineral and hnd Resources
1612 Mail Senicc Center j 512 North Salisbury Street I Raleigh, NC 27699-1612
919 707 9200 T

. t
If you have any questions concerning this permit, please contact Julie Ventaloro at telephone number
[phone] or by email Lulie.ventaloroQncdenr.gov.
Sincerely,
for Tracy E. Davis, P.E., CPM, Director
Division of Energy, Mineral and Land Resources
cc: Washington Regional Office, Samir Dumpor
Central Files
Stormwater Program Files
S rate of forth Caroliro I Encino m tzl Quality 1 En"r -, NIneral and Land Rtw=es
1612 Phil Senice Cm= 1 512 NoribSa&sbtuySuett t Balogh, iw 27699-16V
919 707 9200 T

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
GENERAL PERMIT NO. NCGt40000
CERTIFICATE OF COVERAGE No. NCG140396
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,
DPD Team Concrete, Inc.
is hereby authorized to discharge stormwater and process wastewater from a facility located at
DPD Team Concrete - Grantsboro
622 New Ditch Road
Grantsboro
Pamlico County
to receiving waters designated as UT to South Prong Bay River, a class SC;Sw,NSW water in the
Neuse River Basin, in.accordance with the effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, 111, and IV of General Permit No. NCG 140000 as
attached.
This certificate of coverage shall become effective August 1, 2017.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 1, 2017.
for Tracy E. Davis, P.E., CPM
Director, Division of Energy, Mineral and Land Resources
By the Authority of the Environmental Management Commission

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NCG 140396 DPD Team Concrete, Inc.
DPD Team Concrete - Grantsboro
N Latitude: 350 09' 09" N
Longitude: 7611 49' 16" W
w E County: Pamlico
Receiving Stream: UT to South Prong Bay River
S Index No: 27-150-3
Stream Class: SC;SwINSW
Map Scale 124,000 Sub -basin: 03-04-13 (Neuse River Basin)
Facility Location

SwSGStormwater Services GrouD. LLC
8916 Oregon Inlet Court
Raleigh, North Carolina 27603
Phone: [phone]
Fax: [phone]
August 14, 2008
Stormwater Permitting Unit
NCDENR-DWQ
1617 Mail Service Center
Raleigh NC 27699-1617
RE: Notice -of -Intent for NCG 140000
DPD Team Concrete
Grantsboro Ready Mix Plant
Enclosed please find three (3) copies of the NO1 for the DPD Team Concrete plant located in
Grantsboro NC.
Please note that the detention basin is designed to hold the runoff from the 1" rainfall and
discharge it over a 72-hour period per 15A NCAC 02H.1000. The 10-yr design storm is 7.0
inches with a peak discharge of 17.6 cfs through the primary outlet device.
The basin has a surface area of 7500 sf at the permanent pool. With a contributing drainage area
of 146,362 sf at 40% impervious, this provides a TSS removal efficiency of >85% per Table 10-
2 in the NCDENR Stormwater BMP Manual.
The site plans were previously approved by NCDWQ in April 2007 in accordance with coastal
stormwater management rules in effect at the time.
For all questions regarding the settling calculations, please contact Mike Walker, PE at
919280.9889.
Sincerely,
2RISTWATER SERVICES GROUP, LLC
s D. Frei
Senior Project Manager
Enclosure.
cc: File

IN
a,
NCDENR
No CIJiO — P RrMEHr or
F ROHIaEM AND N4l - Res Cm
Division of Water Quality / Surface Water Protection
National Pollutant Discharge Elimination System
NCG140000
FOR AGENCY UsE ONLY
Dale Received
Year
Month Da
Certificate of Coverage
NICIGII
Check V Amount
Permit Assigned to
NOTICE OF INTENT
National Pollutant Discharge Elimination System application for coverage under General Permit
N CG 140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete
For new plant sites that will discharge or recycle process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to Construct (ATC) wastewater
treatment facilities. ATC requests must be submitted at least 90 days prior to construction'.
For existin plant sites discharging or recycling process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to continue to operate wastewater
treatment facilities in place. Construction, modification, or installation of any new treatment components.
at an existing site requires an ATC.
Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures
treating process wastewater flows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the
same time as the Certificate of Coverage (COC) for the NCG 14 permit. Design of treatment facilities
must comply with requirements of 15A NCAC 2H .0138 & .0139.
Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant
sites requires submission'of three (3) sets of plans and specifications signed and sealed by a
Professional Engineer (P.E.) or qualified staffz along with this application. A copy of the design
calculations should be included. Please see questions 14 & 15.
�,{ For questions, please contact the DWO Regional Office for your area. (See page 5)
1 —
(Please print or type)
1) Mailing address of ownerloperator (address to which all permit correspondence will be mailed):
Name
Street Address
City
Telephone No.
e4'9Aj '.ZErc, /*4=-
w/)U76Xw/46c State AIC ZIP Code S 4
ZSZ 754, - 4PAOz Fax: 2�2 .-353 • /7?¢
2) Location of facility producing discharge:
Facility Name 7DPD MAN CDNG0C7'c �ie,¢ivTSl3pea
Facility Contact TIN! $L.9�,esTo
Street Address CvZZ NEW D/rc& iez>
City 4:, A/T513yr24 State/V4— ZIP Code Sz9
County 1714 '1 fGa
Telephone No. 2r>Z 5' % Fax:
Page 1 of 5
1As per 15A NCAC 2H .0106
2Unless treatment facilities are designed, constructed, and put into operation by employees internal to the company who are qualified to
perform such work for their respective companies in accordance with General Statutes, 89C-25 (7), plans and specifications must be signed
and sealed by a P.E-
S W U-229-091007
Last revised 09/10107

NCG140000 N.O.I.
3) Physical location information:
Please provide a narrative description of how to get to the facility (use street names, state road numbers, and
distance and direction from a roadway intersection). }{,Cq81116 M51 Qlt! N C 50; 4dGc&5
! , Z Mil" E7-M W G 306• TLVV_-#J LOE377- °&' stz, Ind : !F(&TI O• s Alf 1T 4
(A copy of a county map or USGS quad sheet vAth facility clearly located on the map is a required part of this application.)
4) Latitude W0 l • 1(p-[ I Longitude 7G°41• ZT2 I -(deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
❑ New or Proposed Facility Date operation is to begin
10" Existing
6) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 7
7) Provide a brief description of the types of industrial activities and products produced at this facility:
(Include a site diagram showing the process areas present at this facility.)
■ 1 rJ�G [ �1 T•'1 17WbU G r-6, 44 1 X
8) Discharge points / Receiving waters:
M
M
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? I
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? T o 67eunw/F lVEl_
If the site stormwater discharges to a separate storm sewer system, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer). A1IA
Receiving water classification (if known): Se,
Note: Discharge of process wastewater to receiving waters classified as WS-II to WS-V or SA must
be approved by the N.C. Dept. of Environmental Health. if DEH does not approve, coverage
under NCG140000 cannot be granted. No new discharges of process wastewater are
permitted in receiving waters classified as WS-I or freshwater ORW.
9) Does this facility have any other NPDES permits?
WIN
❑ Yes
If yes, list the permit numbers for all current NPbES permits for this facility:
10) Does this facility have -any Non -Discharge permits (ex: recycle permits)?
%Z3 No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility:
11) Does this facility employ any best management practices for stormwater control?
13
o Yes
If yes, please briefly describe: 12 E1'_a7nO$J PDN"N
UA
S W l t-229-091007
Page 2 of 5
Last revised 09/07/2007

NCG140000 N.O.I.
12) Does this facility have a Stormwater Pollution Prevention Plan?
❑ No
Yes
If yes, when was it implemented? d 3 �07
13) Are vehicle maintenance activities occurring or planned at this facility?
Igo
❑ Yes
Wastewater Treatment Design Information
14) Are discharges occurring or planned from any of the following process wastewater generating activities?
Vehicle and equipment cleaning 2(Yes ❑ No
Wetting of raw material stockpiles t2fyes ❑ No
Mixing drum cleaning q(Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater.
R For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
1' area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH — 6-9 SU, Total
Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS) — 5 ml/I.) [Use separate sheet(s)].
If all these discharges are recycled, please refer to Question 15.
For plants that recycle and/or discharge process wastewater:
When applying for this permit, you are also applying for an authorization to construct (new
treatment facilities) or authorization to continue to operate (existing treatment facilities) as
part of the NOI. For new sites, you must submit three (3) sets of design plans and
specifications with this application and provide supporting calculations that predict
compliance of final discharge with permit limits. For existing sites, applicants should submit
three (3) sets of plans and specs for facilities as -built and provide as many design details as
possible, or submit a detailed diagram of treatment systems in place that includes information
such as tank volumes, dimensions, retention time, piping, settling basin details, etc.
Please note: if new treatment systems are planned for an existing site, an A TC will be required
prior to construction of those facilities. Plans/specs/calculations prepared by a P.F. and the
request for an ATC may be submitted with this NOI, or separately at a later date. DWQ may
request the status of your plans for requesting an ATC upon issuance of the COC.
15) Does the facility use or plan to use a recycle system?
eNo
❑ Yes
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
year, 24-hr rainfall event
For a recycle system (regardless of when it overflows), please provide plans, calculations, and design
specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of
freeboard in design storm event, etc.). [Use separate sheet(s)].
' For a sufficient application, the information must demonstrate compliance of final discharge with permit
effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS) -- 5 ml/l), 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.
Page 3 of 5
5WU-229-091007 Last revised 09/07/2007

NCG140000 N.O.I.
s
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
allo ❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design
requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.)
17) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
O"No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
%VlNo
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
%P!fNo
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
18) Certification:
North Carolina General Statute 143-215.6 s(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other
document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10,000).
I hereby request coverage under the referenced General Permit. I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
Printed Nam of P rson Signing:
Title: a r Nk\� c
(Signature of Ap iicant) (Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDENR
Page 4 of 5
5WU-229-091007 Last revised 09/07/2007

NCG140000 N.O.I.
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
Ke'. Check for $100 made payable to NCDENR.
This completed application and all supporting documentation (including design details and calculations for
treatment systems).
' ❑ If an Erosion & Sedimentation Control (E&SC) Plan is required from Division of Land Resources (DLR)
! or local designee: documentation verifying applicant has developed and submitted that Plan to the governing
agency (required per 15A NCAC 02H .0138).
W� 7{ ❑ For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and
specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a
/ Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7).
P For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including
Ir recycle systems) as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a
detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions,
retention time, piping, settling basin details, etc.
I� A site map showing, at a minimum, (existing or proposed):
(a) outline of drainage areas, (b) stormwater/wastewater treatment structures, (c) location of
stormwater/wastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures,
/(e) areas where materials are stored, (f) impervious areas, and (g) site property lines.
tZ A county map or USGS quad sheet with location of facility clearly marked.
Mail the entire package to:
Stormwater Permitting Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the issuance of an NPDES permit.
For questions, please contact the DWO Regional Office for your area.
DWQ Regional Office Contact Information:
Asheville Office ......
[phone]
Fayetteville Office ...
[phone]
Mooresville Office ...
[phone]
Raleigh Office ........
[phone]
Washington Office ...(252)
946-6481
Wilmington Office ...
[phone]
Winston-Salem ......
[phone]
Central Office .........(919)
733-5083
Page 5 of 5
S W U-229-091007
Last revised 09/07/2007

NPDES Permit Application
DPD Team Concrete, Inc.
Grantsboro, NC
Stormwater and Process Wastewater Control Plan
J
a

Table of Contents
• Narrative
• Location Map
• Site Plan and Details
• Runoff and Settling Calculations
• Fortran Documentation

R_a' `• AM
DPD Team Concrete, Inc.
Grantsboro, NC
Background
The existing concrete batch plant is located at 622 New Ditch Road in Grantsboro, Pamlico
County, NC and is situated on the east site of New Ditch Road. The 3.36 acre site was
constructed in 2007. Stormwater management facilities were constructed at the time per state
requirements.
The property is generally flat with only gentle slope constructed when the site was developed.
Approximately 55% of property is gravel traffic areas and 7% is impermeable (buildings,
concrete, etc.).
0 Existing Stormwater Management Facilities
Ground slopes designed to direct runoff to the stormwater management facilities, which include
a drainage ditch on the south and east property lines that direct runoff to the stormwater retention
ponds and a two -basin Retention Pond. Basin 1 has a capacity of 7,952 CF (59,480 gallon) and
functions as a forebay. Basin 2 is a 39,152 CF (292,857 gallon) settling basin. A piped outlet
structure controls the water elevation and defines the permanent pool.
Wastewater Collection Facilities
A concrete truck drum wash area is located near the rear (east site) of the property. Drum wash
water is collected on the concrete pad and drains directly into Basin 1 (Forebay). It is estimated
that a maximum of 25 loads (drum washes) will occur per day, yielding approximately. pw&& 54_L1`81WO
gallons of wash wastewater per day. `
Wastewater Control Measures
The existing stormwater control facilities were evaluated for their ability to capture suspended
solids in the drum wash wastewater. The analysis shows that existing basins will capture 100%
of suspended solids.
pH control will be required. DPD Team Concrete will install a CO2 feed system ,(bytE ,seran) to
neutralize the high pH wastewater in Basin 2. � ►�'°�� 1
SEAL
14992

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DPD Tenn Concrete
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_Substatianti€
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`�;�i %�' :•.� 1 __+-= 'mac` `4 5_`Yj
BAYBORO, NC (1983) QUADRANGLE
7.5 MINUTE SERIES, 1:24000
MAP 1 - SITE LOCATION MAP
DPD Team Concrete - Grantsboro Stormwater Pollution Prevention Plan
NPDES Permit No. NCG140000 Page 4

N44 B3
NEW DITCH RD
i200 (50' PUBLIC R/W)
— - - - _ _ - _ _ -lit-
,I8179 iDO,SS.SiS �,
IS
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3
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s�z�
I
s
— — — —
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— —
— — — — — —
a
— — — —
— —
— — — —
—� — — — — — — — — — —
— — — — — —
_
o
NEW 37' DRAINAGE EASEMENT
I
I
4
NEW 10' DRAINAGE EASEMENT
-
049----,
J
PROPOSED GRAVEL/ASPKAL1
411 I
I �I
\ y
8'
—,00pf
TRAFFIC CIRCULATION AREA?
GRASS FIELD, TO REMAINI
I S
,BL'00i
3
I
8
v]
I
I � �
PLANT
EXISTING DITCH, TO BE FILLED
1
SILO TOP OF BANK EXISTING DITCH 1
I _
y EXISTING DITCH, TO REMA;N m a
-
33EE Q
:'LY
\
C/I EXISTING ARCH
i �
w
o
PROPOSED GRAVEL/ASPHALT
TRAFFIC CIRCULATION AREA 7 �V
�"�� \
PROPOSED
CONCRETE TRUCK
' WASH -GOWN AREA
,so K 1
o
'
— - - - - —
6 ISIS LB
- -�-
-- - �.� --- -
------ —{
-- — — — — — — -"----- —
—�
-- -
1
—
85 5170052i 549_70'
1
LExI$IINc DITCH, TO REMAIN LIMI�URBANCE
NEW 10' DRAINAGE EASEMENiJ
5.00 ACRES
A. EAR4EUR7
GELD wo, uA PAS[ 729
hoH
THE ANGLE FOR GRADED SLOPES AND FILL SHALL BE NO GREATER
THAN THE ANGLE THAT CAN EE RETAINED BY VECETATIVE COVER
OTHER ADEOVATE EROSION CONTROL DEVICES OR STRUCTURES. IN
ANY EVENT, SLOPES LEFT EXPOSED WWI. WITHIN 21 CALENDAR DAYS
OF CGIAPLETION OF ANY PHASE OF GRADING. BE PLANTED OR
OIHERWLSE PROVIDED WN1H TEMPORARY OR PERMANENT GROUND
COVER. DEVICES, OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION.
SITE
ER6JEQ "WART
PROJECT DAiA.-
DtP4ER: DPO PROFEAAti A INC.
P.O. Boa 1639
W117ERMELE. NC 20590
(r52)n6-al9
TOTAL PROPERTY AREA: 5,00 ACRES
STE 2OW4 N04
11 :
I. NO SECREN 404 Af ILAN05 APE PRESENT CN THE
PRD.ECI %TE.
2NO FEUSE RIPARIAN BUFFER AREAS REGULATED
LWR 15A NCAC 078 EAISi 01 M PROECT SITL
I THE RECEMNG WATER COURSE FOR 1HIS PRDJECI 15
SOUTH PROW OF THE 9AY RIVER, CLASS SC. S.. NSW
MAINTENANCE PLAN:
1. ALL EROSION AND SEDIMENTATION CONTROL CE5ICES SHALL
BE CHECKED FOR STABILITY AND CPERAPON FOLLOWING
EVERY RUNOFF -PRODUCING RAINFALL EVENT AND IN NO
CASCLESS THAN ONCE EVERY WEEK. ANY NEEDED
REPAIRS WILL RE MADE IMMEDIATELY TO MAINTAIN ALL
DEVICES IN THE OPERATING CONDITIONS INTENDED.
2. ALL AREAS WLL BE SEEDED. FERTUZED. AND RESEEDED
AS NECESSARY AND MULCHED ACCORDING TO
SPECIFkCATIGNS IN THE VEGETATION PLAN IN ORDER TO
ESTAELISH AND MAINTAIN A VIGOROUS. DENSE W ETATII
COVER.
3. ANY SEDIMENT TRACKED ONTO THE ADJACENT PUBLIC
ROAD SHALL BE REMOVED ON A DAILY BASIS.
4, SEDIMENT SHALL BE REMOVED FROM 9EHAD SILT FENCING
& CHECK DAMS WHEN THE SEDIMENT ACCUMULATES TC
A DEPTH OF ONE FOOT,
5 THE STORMWATER RETENTION POND SHALL BE CLEANED OF
ANY ACCUMULATED SEDIMENT UPON THE COMPLETION OF
CONSTRICTION,
SEQUENCE OF OPERATION:
1. SECURE PRUCT PERMITS
2. CONDUCT PRE -CONSTRUCTION CONFERENCE.
3.1N57ALL GRAVEL CONTROL ENTRANCE,
4, INSTALL $T FENCING.
5, INSTAII STORMWATER RETENTON POND TO ACT AS SEDIMENT BASN
S. FINE GRADE & STABIUZE PARKING AREAS
7, INSTALL SITE IMPROVEMENTS
& 5EE0 AND MULCH ALL DISTURBED AREAS/ESTABLISH PERMANENT VECEIAFION
9. RESEED AS NECESSARY TO ESTABLISH VEGETATION.
NOTE:
ALL FILL MATERIAL NEEDED TO COMPLETE
THE PROJECT NOT GENERATED FROM ON SITE
GRADING ACTIVITIES SHALL BE OBTAINED FROM
A PROPERLY PERMITTED BORROW PIT FACILITY
� D u sa sa
GRAPHIC SCALE
SCALE' 1"=30'
SEAL g
15735 9
O6142CS.DWG

m
El
5V 5 1 ,1 11
1 I I CRASS FIELD, TO REMAIN
1 1 1 1
1 1
NEW 3W 19' CMP--'
5 1 1 1
95.
I�
co 1 1 ~ 11 3:1 OIRET SWALE K 1
Z 1 5 1 1 NEW 37' DRAINAGE EASEMENT 1
aaoomcom 4LT tENCE
C
C2 C4
rct[A OUTLET FROTECION
D
�9
ca a
CREC9 DAM
E
l�
C7 G
VECETATED 9WALE
r
NOTES,
CZ C�
1. SEE DETAIL A SHEET C4 FOR TYPICAL PAVEMENT SECTION.
4.REVECETATE ALL DISTURBED AREAS IN ACCORDANCE
W14 THE PRO.ECI VECEIATION PLAN, SEE
DETA4- G. 5HEET C4,
IAILTENA.UE RA.
I, ALL EROSION AND SEDWENTATION CONTROL DEVICES STALL
BE CHECKED FOR STABAITY AND OPERATION FOLLOWNC
EVERY RUNOFF -PRODUCING RAINFALL EVENT AND IN NO
CASE LESS THAN ONCE EVERY WEEK. ANY NEEDED
REPAIRS WILL BE MADE IMMEDIATELY IC MAINTAIN ALL
DEVICES IN THE OPERATING CONDITIONS INTENDED,
2. ALL AREAS WILL BE SEEDED. FERTILIZED. AND RESEEDED
AS NECESSARY AND MULCHED ACCORDING TO
S1[09CATTONS IN THE VEGETATIDN PLAN IN ORDER 10
ESTABLISH AND MAINTAIN A NGORIXIS, DENSE VEGETATIVE
COVER.
3. ANY SEDIMENT TRACKED ONTO THE ADJACENT PUBLIC
ROAD SHALT BE REMOVED CN A GAILY BASIS.
4, SEDIMENT SHALL BE REMOVED FROM BEHJND SILT FENCING
& CHECK DAMS WHEN THE SEDIMENT ACCUMULATES TO
A DEPTH OF ONE FOOT.
'.5 THE STORMWAIER RETENTION POND SHALL BE CLEANED OF
ANY ACCUMULATED SEDIMENT UPON THE OOAIPLETiOH OF
CONSTRUCUON.
CAI.
I, SECURE PROI PERMITS
2. CONDUCT PRE -CONSTRUCTION CONFERENCE,
3. INSTALL GRAVEL CCNTROL ENTRANCE.
4. INSTALL 9LI FENCING
5. INSTALL STORMWATER RETENTION POND TO ACT AS SEDMENT BASIN
6. FINE GRADE M STA130J2E PARKING AREAS
7. INSTALL STE IMPROVEMENTS
8. SEED AND MULCH Ail DISTURBED AREAS/ESTABLISH PERMANENT VEGETATION
9. RESEED AS NECESSARY TO ESTABLISH VEGETATION,
NOTE:
ALL FILL MATERIAL NEEDED TO COMPLETE
THE PROJECT NOT GENERATED FROM ON SITE
GRADING ACTIVITIES SHALL BE OBTAINED FROM
A PROPERLY PERMITTED BORROW PIT FACILITY
� 1 1
1 •o
fi x
We 4NY'4(8- RCP V
:y FE51 ,
k pILNL
1",,E%IST60 DITCH, TO REMAIN
96
1 ( VE
� 10D. 1
j1 W.B 1
10- 1HICK REINFORCED 11
CONCRETE TRUCK I
WASH-DGWN PAD A 11
$1 •+ w 1 ~
1 .d C/L EXISTING DITCH 1
I /4 LB 5
l I TOP OF BANK EXISTING DHCH��1 p
tLKl.6�
1. II 1 ,,—EXS WIC DrtCH. 10 BE,FILLFD t p�5
1 �
1 1 1 PROPO$ED GRAVEL/ASPHALT
' x' TOP OFSBANK 11ISTWG TRAFFIC CIRCULATION AREA
�,•, DICH T IREMAIN
1 GRASS FIELD
1 1 1 49
COTSIE�
V 1 gfiOV 'p.US y
1 1
Yll 05 � PLANT
V 1 1 1 1 `�� N, OFFICE 1 1 I p FFE=132.
94
5 1 1 1STORA
b t02.0 FFE=
1
GFAYEL CDNTROL EMTRANCE \.
NEW 45LF1; y RE1 Z fS
1 VA 94.0 102.D
I
a' 1
1 f , DE_Pols' 1
V 1 IIDD.3 ql� YI YEC�IATED SIlALF
5jA
PAUL B. BROOKS, SR.
1 5 1� C/L CXISFwC DITCH, TO RfLWiN DEED BOOK 85 PAGE 15TAX ID: F042.99
VI 11'111
y L V
t1 1 1
A SITE LAYOUT PLAN
C2 C2 SHALL: 1 =30
410
ZO
10' DRAINAGE EASEMENT
PLAN VIEW - TRUCK WASH -DOWN AREA
(NOT TD SCALE)
46.s
I DO.O
10'
THICK REINFORCED48.5
CONCRETE TRUCK
WASH -DOWN PAD CA FLOW SPREADER 11,11
CA NCW SCALE
10' DRANAGE EASEMENT
CROSS SECTION - TRUCK WASH -DOWN AREA
(NOT TD SCALD
/L EYISTINC DF1CH, TO REMAIN
TRUCK WASHDOWN PAD CISCUSSICN:
A. EARLE IRELAND
A NPDES PERMIT SHALL BE SECURED BY THE PROJECT OWNER
DEED BOOK 148 PAGE 729
PRIOR TO THE OPERATION OF THE CONCRETE PLANT. A WASH DOWN
TAX IU- 111-11
PAD SHALL BE 1111111111 AND PERMITTED TO A CONFIGURATION
SIMILAR THAT SHOWN WHICH WALL PREVENT TRUCK WASH DOWN
RINSAIE CONTAMINATED WITH SEDIMENT OR SOLIDS FROM
ENTERING THE STORMWATER POND.
1 WASHDOWN PAD SCHEMATIC
C2 C2 NOT TO SCALE
1i
NOIE:
THE ANGLE FOR GRADED SLOPES AND FILL SHALL BE NO GREATER
THAN THE ANGLE THAT CAN BE RETAINED BY VEGETATFVE COVER
OTHER ADEOUATE EROSION CONTROL DEVICES OR STRUCTURES. IN
ANY EVENT, SLOPES LEFT EXPOSED WLL. WITHIN 21 CALENDAR DAYS
OF COMPLETION OF ANY PHASE OF GRADING, BE PLANTED OR
OTHFRWSE PROVIDED WTH TEMPORARY OR PERMANENT GROIIND
COVER. DEVICES, OR STRUCTURES SUFFICIENT 10 RESTRAIN ERO9CN,
— o is w as
GRAPHIC SCALE
SCALE: I�-30'
BEAL J
19739 I
O du.666 J

m
s
15D'
45.5
. 9 6
.
AN
SE
I
CROSS SE(F0
III
.�
49 3
2
Ir
I
a
� �
�
oPERMANENT POOL = 96.0
O
�
x
I'
9 5 WE
96 30.7
97 98
99 100 `�� �'
EDGE OF PAVEMENT EDGE OE PAVEMENT
•
•
A EMARGED SIORMWATER POND PERMANENT POOL ELEVATION = 96 0', AREA = 7,500 SF
C3 C3 SCALE: 1'=10'
TEMPORARY POOL ELEVATION = 97.2', AREA = 8,992 SF
STRAPS 2i aC. ANCNORED
TRASH SCREEN N CONCRETE 12" MIN.
(7rP,CAL Or 4)
30 IF It' CUP W7117 PIPE
i"
PLAN
!!!---TRASH $GREEN
/ (3 REBAR 0 6" 0.C, Lw
/ 7• WIDE . l(i 180 METAL
STRAPS 2i AC. AN 4MD
��a������ N CONCRETE 7r MIN A LF 7a" CMP QTILEI PIPE
I• (TYPICAL OF A)
WER . A T-NCH 570ReA FLEVA71du 4F
2/" CW RISER
PROVIDE !O. 0A ANTI -SEEP
COLLARS CON1iwwsLW
WEILDE9 10 AIRRE,
0 2a' O.C.
6' IA.RISER
R PIPE 3�
CONTINUOUSLY WELDED t
16 RSER
R- I 1 i - Ayr
INLET PIPE a C • r
HAPTTWARE CL07H AND - ' _ • . '
STA9tLESS STEEL STRAP ' a• n ♦� .
TDp F TING `Y WDE 16' THCK CONCRETE ELEYI
• - c —(" ANCHORAI{ FOR PIPE
ANCHOR 74'CMP RISER IN n , - SECTION
CWCRETE SLAB. PUCE CONCRETE
INSIDE OF RISER TO ELEVAIKYI D
PROVIDE FIRM AND S74LE OUTLET STRUCTURE ELEVATION CHART
SUPPORIING AREA FDR RISER A B C D E F
AND CONCRETE ANCIgRADE POND 98.2 97.2 96.0 95.0 95.0 92.0
4' SOUARE
OUTLET STRUCTURE
C3 C3 NOT TO SCALE
PROVIDE PLANTINGS SP CIFIED AROUND
FULL POND PERIMETER E{10 FOOT STRIP)
LI I I I I I f I f Ir ELEVATIGN=95.0'
ELEVATION- 954
� _ �STORMWATER DETENTION POND CROSS-SECTION
C5 C3 NOT 10 SCALE
PERIMETER_SHELF PLANING LIST
SCIENTIFIC NAME
COMMON NAME
SIZE
IRIS VIRGINICA
BLUE FLAG IRIS
LARGE PLUG
PELTANDRA MRGINCA
ARROW ARUM
LARGE PLUG
SAGITTARIA LANC60LIA
BULLTONGUE
LARGE ?LUG
SAGITTARIA LATIFOLIA
DUCK POTATO
LARGE PLUG
SPARCANIUM AMERICANuM
BUR-REOD
LARGE PLUG
TIZANIOPSIS MRIACEA
WATER MILLET
LARGE PLUG
PROVIDE EVEN NUMBER OF SPECIES PLANTED AT 13" Q.C. IN
ALL DIRECTIONS,
REFERENCE: COASTAL PLAIN CONSERVATION NURSERY, INC-
3057 COMMERCE DRIVE
EDENTON, NC 27932
[phone]
PROVIDE PLANTINGS SPECIFIED AROUND
FULL POND PERMETER IG FOOT STRIP) p
- SAFETY LEDGE ELEVATION-S
?EMPORARY POOL ELEVATION=97.2_p EtEVAIl0N=95.0'
PERMAN I Pk VATi N = 96. ' �1
a '
1 L- FORE AV ELEVATION= 91 D' I
10'
GRAPHIC SCALE
SCALE: Y"•20'
06142C3.OWG

M
Project: DPD Team Concrete, Inc. Computed: MLW Date: 8/I/08
Subject: Concrete Plant Wash Water Settling Time Caics__
Task: Calcs. For cement particles Sheet 1 Of 5
Gravity, g= 32.2 ft/sec2
avg. diameter of cement particle (microns), d= 15 microns
1 micron= 3.28E-06 ft
avg. diameter of cement particle (ft), d= 4.92E-05 ft
density of cement, p 1= 94 Ib/ft3
density of water, p2= 62.4 lb/ft'
viscosity of water-- 5.98E-04 If/ft-sec
Particle settling velocity (ft/sec), V=gd2(pl-p2)/l8µ= 2.29E-04 ft/sec
Settling Depth= 4 ft
Settling Time= 17,475 sec
4.85 hrs
0.20 days
Wash water produced= 15 gal/cy
Estimated daily capacity of batch plant-- 450 cy
Estimated wash water produced per day-- 6,750 gal
1 gallon=
0.133681 ft
Estimated wash water produced per day=
902 ft3
Total volume of basin 1 provided=
7952 ft3
Detention time available in basin 1=
8.8355556 days
Total volume of basin 2 provided=
39152 113
Detention time available in basin 2=
43.502222 days
Total volume of all basins:-- 47104 ft3
Total detention time available (wastewater)= 52.337778 days
Q]o= 11.26272 cfs
L= 60 ft
Depth of flow over discharge weir (ft), D=(Q/(3.1 *L))2 3= 0.15 ft
Q.-,.h.cr 0.025 cfs
Depth of flow over discharge weir (ft), D-(Q/(3.1*L))2/3= 0.003 ft
b
`1w AL
14992114
Comments
cement particle
see sed basin calcs.
see sed basin talcs.
from stormwater sed basin calcs.
from sed basin calcs.
assume 10 hr workday
washwater only
DPD Team Concrete NOI Calculations

Project: DPD Team Concrete, Inc Computed: MLW Date: 8/1/08
Subject: Concrete Plant Wash Water Settling Time Calcs
Task: Calcs. For cement particles Sheet 2 Of 5
Critical Velocity basin 1, VcI=
3.93E-06
to settle to bottom
4.00 ft
Wash water only critical velocity basin 1, Vcl=
3.443E-09
to settle to weir
0.003 ft
Stormwater critical velocity basin 1, VcI=
2.02E-07
to settle to weir
0.154 ft
Basin I
Grain size of Portland Cement 2004 NIST stud
Diameter
(microns)
Size
distribution
%<
Diameter ft
Settling
Velocity
VpI
(ft/sec)
Time, days
Xr=VplNcl
% that settle
to bottom
Xr-=VplNcl
%that settle
to weir
1
4.7
4.7%
3.28E-06
1.02E-06
34.130
25.89%
100.00%
1.5
2.6
7.3%
4.92E-06
2.29E-06
15.169
58.25%
100.00%
2
4.8
12.1%
6.56E-06
4.07E-06
8.533
100.00%
100.00%
3
5.6
17.7%
9.84E-06
9.16E-06
3.792
100.00%
100.00%
4
4.6
22.3%
1.31 E-05
1.63E-05
2.133
100.00%
1 100.00%
6
7.6
29.9%1
1.97E-05
3.66E-05
0.948
100.00%
100.00%
8
6.0
35.9%
2.62E-05
6.51 E-05
0.533
100.00%
100.00%
12
10.5
46.4%
3.94E-05
1.46E-04
0.237
100.00%
100.00%
16
8.2
54.6%
5.25E-05
2.60E-04
0.133
100.00%
100.00%
24
13.8
68.4%
7.87E-05
5.86E-04
0.059
100,00%
100.00%
32
10.3
78.7%
1.05E-04
1.04E-03
0.033
100.00%
1 100.00%
48
12.4
91.1%1
1.57E-04
2.34E-03
0.015
100.00%
100.00%
64
5.2
96.3%
2.10E-04
4.17E-03
0.008
100.00%
100.00%
96
2.8
99.1%
3.15E-04
9.38E-03
0.004
100.00%
100.00%
128
0.4
99.5%
4.20E-04
1.67E-02
0.002
100.00%
100.00%
> 128
0.5
100.0%
-
-
-
100.00%
100.00%
During dry operation all particles will settle more than 0.007 ft. Therefore, there is no discharge into basin 2.
During rain events all particles will settle more than 0.154 ft. Therefore, there is no discharge into basin 2.
Critical Velocity basin 2, Vcl= 7.982E-07 to settle to bottom 4.00 ft
Wash water only critical velocity basin 2, Vcl= 6.993E-10 to settle to weir 0.003 ft
Stormwater critical velocity basin 1, Vcl= 4.103E-08 to settle to weir 0.154 ft
Basin 2
Grain size of Portland Cement 2004 NIST stud
Settling
Velocity
Xr=VplNcl
Xi=VplNcl
Diameter
Size
Vp 1
% that settle
% that settle
(microns)
distribution
1,161
Diameter ft
ft/sec)
Time, days
to bottom
to weir
1
4.7
4.7%
3.28E-06
1.02E-06
34.130
100.00%
100.00%
1.5
1 2.6
7.3%
4.92E-06
2.29E-06
11 15.169
100.000/0
100.00%
2
1 4.8
12.1%1
6.56E-06
4.07E-06
11 8.533
1 100.00%
100.00%
During rain events all particles will settle more than 0.154 ft. Therefore, there is no discharge from basin 2.
DPD Team Concrete NOI Calculations

■
Project: DPD Team Concrete, Inc. Computed: Ji2H Date: 3/5/07
Subject: r Concrete Plant Wash Water Settling Tune Calcs
Task: TSS Passing Basin 2 Sheet 3 Of 5
Weight of Concrete Settled per Basin:
CY/day Wt. Cement
450 760.5
(rainfall and wastewater combined)
*Concrete will not be produced during rain events.
Diameter
(microns)
Size
distribution
Basin 1
to weir
Basin 2
to weir
Weight
cement
< 2 m
Pass to
Basin 2
Discharge
from
Basin 2
Settle in
Basin 1
Settle in
Basin 2
1
4.7
100.00%
100.00%
35.74
0.00
0.00
1 35.74
0.00
1.5
2.6
1100.00%
100.00%
19.77
0.00
0.00
19.77
0.00
2
4.8
100.00%
100.00%
36.50
0.00
0.00
36.50
0.00
Total:
92.02
0.00
1 0.00
92.02
0.00
DPD Team Concrete NOI Calculations

Project: DPD Team Concrete, Inc. Computed: MLW Date. 8/l/08
Subject: Concrete Plant Wash Water Settling Time Calcs
Task: TSS passing basin 2 Sheet 4 Of 5
Estimation of TSS from basin 2: (from cement)
Concrete trucks will be washed out after every load. It is expected that 130 lbs of concrete will washed from each
10 CY truck load or 13 lb/CY.
The design for portland cement on this project is approximately 530 lbs/CY and the average CY of concrete weighs
4,000 lbs. therefore the weight of cement averages 13% per CY of concrete.
Waste concrete at 15 lbs/CY with 14.1 % of the weight coming from cement will yield 2.1 lbs/CY of cement that
will adhere to the truck and be included in the wash water.
See weight of concrete settled per basin calculations.
*Suspended cement discharging from basin 2 during rain event-- 0.00 lbs
*If operations ran during rain events, which they will not.
To be conservative assume that 30% of the settled particles discharge to basin 2
30% of
weight
Basin 2 to
weir
Discharge from Basin 2
0.00
100.00%
0.00
0.00
100.00%
0.00
During a rain event we can assume that previously settled particles distribute themselves evenly through the depth of
the basin. To be conservative assume that 30% of the settled particles descharge from basin 3
30% of
weight
Basin 2 to
weir
Dischar a from Basin 2
0.00
0.00%
0.00
0.00
0.00%
0.00
�o .....,vL/4-
Total Suspended cement discharging from basin 2= 0.00 lbs qs a 4
Volume of basin 2= 292877 gal �Q{2
Estimated daily TSS= 0.000E+00 lbs/gal
lmg/1= 8.345E-06 lbs/gal ��' Y,�\ /
Estimated TSS during a rain event-- 0.0 mg/l
Estimated TSS during normal production 0 mg/1
Maximum allowable TSS= 30 mg/I
It is recommended that basins be cleaned and sediment removed when 1/2 of the storage volume has been used.
DPD Team Concrete NOI Calculations

Project: DPD Team Concrete, Inc. Computed: MLW Date: 911/08
Subject: Erosion Control - Concrete Plant Site^
Task: Sediment Basin Shell 5 Of 5
Basin Location: Concrete plant site
Calculate Time of ConcentrationIQ
_ [L3/H]° "/128 (Malcom)
■
Hydraulic length of watershed L (ft) =
690
Elevation change along length H (R) =
3.0
k (min)
9.7
use t' (min) =
10.0
Calculate Peak Flow Q=CIA
C= 0.4
I (in/hrr 8.4 10-yr, 5-min storm
NC F&S Design Manual, Figure 8.03c, Washington
A (Ac.) = 3.36 Drainage Area (used in calculations)
Qta (cfs)= 11.3
Q. t,, = 0,03
Qtotal= 11.3
Sediment Storage
T
Minimum Storage Required (cf I Ac)
1,800 NCDOT Guidelines
Sediment Storage c 6,048
min required storage volume
Surface Area
A (SF) = 0.01 *Quo* 43,560
NC E&S Guidelines, 6.60.2
A SF — 4,917 min required
surface area for 75%efficiency
volume calculations for geometric rectangular trap
*Minimum Total Size Basin
stage area volume cum. Vol.
Bottom Full
(SF) (CF) (CF)
Length (ft) 224 240
0 9,856
Width (ft) 44 60
x4� 1 ID,944� ;"i_0;40Q.µ 34i0F4D�
p w r-
2 12064 11,504 21,904�
Side -slope 2 (X:1)
3 13,216 12,640 34,544
Depth 4 ft at spillway
4 14,400 13,808 48,352
Conclusion -
Construct the trap to be:
240 ft top length
Retention in basin 1:
8.33 days
60 ft top width
Retention in basin 2:
41,01 days
4 ft deep at spillway
5.5 ft top of dam
Total:
49.34 days
2 :1 side -slope
60 It weir length
*Basin surface area and volume to be divided between
two basins in series.
Surface Area (SF)
o
Basin Length (ft) Width (ft)
Top Bottom
Volume (CF)
NAL l
Basin 1 (Forebay): 45 60
2,700 1,276
7,952
Y��
Basin 2: 195 60
11,700 7,976
39,152
k/
/U
��f�Jtl%311T51
DPD Team Conaate N01 Calmftftm

FORTRANS pH CONTROL SYSTEMS
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
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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.
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 maybe used for wetting
of rock and/or dust control to aid compliance with
stormwater run off regulations. Treated water may
also be used in water recycling systems.
These systems offers 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
2-30'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.
4 0
Fo r t m! 0 ,0 n
s._
u
�4�� PERFECTSC7LUTIQN
FORTRANS, INC. • 7400 C. Siemens Rd. • Wendell N.C. 27591
1.866.365-8760 1. 919.624. 8832
[e-mail] www.fortrans.biz
The 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.
The Model 5000-SK Skid Mounted pH Control
System contains all of the instrumentation and
components of the regular Model 5000-S System
and is shipped on a 44"x47" plastic skid with a 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 tubing to the sample cell and from the
CO2 solenoid valve to the Sparger stone feed
assembly must be inserted after receipt of the unit.
The system features a 115V-30Amp Breaker Box
and two GFCI receptacles. The system is shipped
with a CO2 feed system.

FORTRANS pH CONTROL SYSTEMS - MODEL 5000-S & 5000-SK
W
■
a
Overhead view
Intake line detail
Return line detai
Fortrans—,.
r
1 1/2" cam lock
quick connect
Option
1 1/2" schedule 80 union should be
located above water I ine so that check
valve can be cleaned
1 112" PVC check valve -
Locate 12" from the bottom
of the basin
3/4" PVC ball
valve to facilitate
easy priming of
pump
nt�
See rnerhead view for correct pipe
placement in basin. This part of
the return line is rotated 90' over
the basin wall.
Return Eire is installed on interior
1 1/2" cam lock
side of settling basin. Fasten with
quick connect
11/2" pipe clamps.
GBasin wall
--
-_
Return line outlet
- _ =
approximately 12" from
the bottom of the basin
Return line outlet is
- _ _ : mac:' •--.:._:,___ _...
constructed with
1 1/2" schedule 80 PVC

Energy, Mineral
and Land Resources
ENVIRONMENTAL QUALITY
August 1, 2017
Mr. David Hardee
DPD Team Concrete, Inc.
P.O. Box 1639
Winterville, NC 28590
ROY COOPER
Gort-mm-
MICHAEI- S. REGAN
Secs ivan•
TRACY DAVIS
Director
Subject: General Permit No. NCG140000
DPD Team Concrete - Grantsboro
COC No. NCG140396
Pamlico County
Dear Mr. Hardee:
We recently discovered that we failed to issue a permit for this facility when it was initially applied
for and reviewed in 2008. We sincerely apologize for this oversight. In accordance with your
application for a discharge permit received on August 26, 2008, we are forwarding herewith the
subject -certificate of coverage (COC) 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 October 15, 2007 (or as subsequently amended).
Please take notice that this certificate of coverage is not transferable except upon approval of the
Division of Energy, Mineral and Land Resources. The Division of Energy, Mineral and Land
Resources 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 Division of Energy, Mineral and Land Resources, the Coastal Area Management Act, or any other
federal or local government permit that may be required.
Per the requirements of the Neuse Riparian Buffer Rule, all stormwater drainage to stream buffers,
from portions of this site that have been constructed after July 22, 1997, must meet diffuse flow
requirements per 15A NCAC 2B .0233. Diffuse flow requirements are described in Chapter 8 of the
North Carolina Stormwater BMP Manual, available at: htt :llde .nc. ov/about/divisions/ener -
mineral-land-resources/energy-mineral-land-permit-guidance/stormwater-bmp manual.
Stale of North Carolina ` Environmental Quality I Energy, Mineral and Land Resources
1612 Mail Service Center 1 512 North Salisbury Street I Raleigh, NC 27699-1612
919 707 9200 T

r1 %
If you have any questions concerning this permit, please contact Julie Ventaloro at telephone number
[phone] or by email iulie.ventaloroPncdenr.gdv.
Sincerely,
Original Signed by Robert A Patterson
for Tracy E. Davis, P.E., CPM, Director
Division of Energy, Mineral and Land Resources
cc: Washington Regional Office, Samir Dumpor
Central Files
Stormwater Program Files
State of North Carolim I En%iro=ental Quality] Energy}; Mneral and Land Rew=es
1612 \hil Sermice Center 1 512 North Saiitem,Stteet I Raleigh, NC 27699.1612
919 707 9'_00 F

STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL AND LAND RESOURCES
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140396
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,
DPD Team Concrete, Inc.
is hereby authorized to discharge stormwater and process wastewater from a facility located at
DPD Team Concrete - Grantsboro
622 New Ditch Road
Grantsboro
Pamlico County
to receiving waters designated as UT to South Prong Bay River, a class SC;Sw,NSW water in the
Neuse River Basin, in accordance with the effluent limitations, monitoring requirements, and
other conditions set forth in Parts 1, 1I, II1, and IV of General Permit No. NCG 140000 as
attached.
This certificate of coverage shall become effective August 1, 2017.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this day August 1, 2017.
Original Signed by Robert D. Patterson
for Tracy E. Davis, P.E., CPM
Director, Division of Energy, Mineral and Land Resources
By the Authority of the Environmental Management Commission

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NCG 140396
N
W E
S
Map Scale 1: 24, 000
DPD Team Concrete, Inc.
DPD Team Concrete - Grantsboro
Latitude: 350 09' 09" N
Longitude: 761 49' 16" W
County: Pamlico
Receiving Stream: UT to South Prong Bay River
Index No: 27-150-3
Stream Class: SC;Sw/NSW
Sub -basin: 03-04-13 (Neuse River Basin)
all
Facility Location

Ventaloro, Julie
From: Ventaloro, Julie
Sent: Wednesday, July 19, 2017 1:47 PM
To: Patterson, Robert D
Subject: NCG140396 DPD Team Concrete permit documents
Attachments: NCG140396 DPD Concrete Cover Letter.docx; NCG140396 DPD Concrete map.pdf;
NCG140396 DPD Concrete COC.docx
Robert,
Here is the COC, cover letter, and map for NCG140396. Please issue it once the NCG14 general permit is signed. I left a
message for the owner, David Hardee, letting him know to expect their permit in the next week.
Julie Ventaloro
Stormwater Permitting Program
NC Division of Energy, Mineral, and Land Resources
1612 Mail Service Center, Raleigh, NC 27699-1612
Phone: [phone] Fax: [phone]
Website: http://watersupplywatershed.nc.gov
Email correspondence to and from this address is subject to the +
North Carolina Public Records Law and may be disclosed to third parties.
i
NC_ &/ 6� ;s
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cow,
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Pickle, Ken
From: Pickle, Ken
Sent: Friday, June 24, 2016 2:02 PM
To: Bennett, Bradley
Subject: NCG14 for DPD, NCS for Pacific Mulch, update
Pacific Mulch; applic. #NCS000511 from 2004
• Now called Pacific Organics per their website. Per Google aerial image this is an operating site; there are
multiple pieces of portable equipment, and multiple vehicles — a large operation with rows and rows of material.
• A large chipping operation that submitted as manufacturing pine and hardwood mulch, and advertises on their
website as making premium potting mixes. Some photos show that the wood chips remain identifiable - - i.e.
the degradation of the bark is not complete all the way like many composts. More like Carolina Bark.
• Judge similar to Carolina Bark or Sun Gro, both producing 'planting media' or 'potting mix'.
• 2F application in 2004 requests to have monitoring like NCG22, chip mills. A new site at the time.
• DWQ RRO inspection after a fire in November 2007; Myrl and Autumn.
• Candidate permits: NCS as requested; NCG22 not possible; NCG21 possibly; NCG24 possibly.
o NCS monitoring— open to our evaluation. Possibly TSS, COD semi-annual, like NCG21
o NCG22 monitoring — TSS, BOD, 12 quarters plus annually thereafter. The applicant requested this suite
of parameters.
o NCG21 monitoring—TSS, COD semi-annual
o NCG24 monitoring — quarterly for sw: TSS, COD, fecal, pH, TN, TP, CuPbZn.
If
ww: TSS, BOD, fecal, pH ,
Discharge to Lynch Creek in the Tar -Pam; C, NSW classification.
Myrl and Autumn note that Lynch Creek was dry at the time of the fire (and the exempted fire -fighting
discharge) due to the drought (Nov, 2007.)
Difficult site as for as knowing whether to accept NCS application, or to look at NCG21, or NCG24: could set
precedent for similar problem facilities in the timber industry. Also some uncertainty as to whether Lynch Creek
is a ZFS (it was dry in the 2007 drought) and if the runoff or wastewater would be an oxygen demanding waste.
DPD Team, applic. #NCG140396 received 2008.
• This is an operating site per Google aerial image. In the middle of 1 square mile of
farmland. Grantsboro/Bayboro area, Pamlico County.
• Discharges to LIT to South Prong Bay River in the Neuse River Basin. Classification SC Sw NSW.
• I have a call in to the Vice President to confirm they still need a permit, but it's clear to me they do.
• We could issue this one without much ado. I don't see any complication's.
Ken
Ken Pickle
Stormwater Program Specialist
DEMLR Stormwater Permitting Program
Department of Environmental Quality
919 807 6376 office
ken.OckleOncdenr. ov
1612 Mail Service Center, Raleigh, NC 27699-1612
512 N. Salisbury St, Raleigh, NC 27604
-7I-7I7,01-7 �� 0
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Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.

REI: 1`'01 for DPD Team Concrete - Grantsboro plant
Subject: RE: N01 for DPD Team Concrete - Grantsboro plant
From: "jim frei" <jdfret @stormwatergroLIP. com>
Date: Tue, 16 Dec 2008 17:1 1:23 -0500
To: "'Ken Pickle'" <ken.pickle a ncmail.net>
That's OK, Ken. We can wait until January for your response.
jim frei
http://www.stormwatergroup.com
raleigh, nc
phone: [phone]
fax: [phone]
-----Original Message -----
From: Ken Pickle [mailto:[e-mail]
Sent: Tuesday, December 16, 2008 3:53 PM
To: [e-mail]
Subject: Re: NOI for DPD Team Concrete - Grantsboro plant
Sorry Jim, that's on my desk, awaiting my attention. Hope to get to it
in January. Please let me know if the facility is delaying construction
based on my delay - - If so, I'll try to look at it earlier.
Ken
jim frei wrote:
Ken - DPD Team Concrete submitted the NOT package for their new
ready -mix concrete plant in Grantsboro in late August 2008. Enclosed
with the NOI package was check number 46888, dated 8/21/08 in the
amount of $100.00 which has not been cashed.
h
Can you verify if NCDWQ ever received this package? l
1f the NOI was received, when might the applicant expect their COC
letter?
Thanks.
jim frei
http://www.stormwatergroup.com
raleigh, nc
phone: [phone]
fax: [phone]
1 01,1 12/17/2008 7:48 AM

X
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SwSG
Stormwater Services Group, LLC
kx
Notice -of -Intent
NCG140000
for
DPDTeam Concrete, Inc.
Grantslboro, NC
August 1.4, 2008
tltl ll�ii�.

dP�eCC,4f6.1\
0
SwSGSIormwater Services Group. LLG
8916 Oregon Inlet Court
Raleigh, North Carolina 27603
Phone: [phone]
Fax: [phone]
August 14, 2008 ''
Stormwater Permitting Unit
NCDENR-DWQ
1617 Mail Service Center
Raleigh NC 27699-1617
RE: Notice -of -Intent for NCG140000
DPD Team Concrete
Grantsboro Ready Mix Plant
Enclosed please find three (3) copies of the NOI for the DPD Team Concrete plant located in
Grantsboro NC.
Please note that the detention basin is designed to hold the runoff From the 1" rainfall and s w
discharge it over a 72-hour period per 15A NCAC 02H.1000. The 10-yr design storm is 7.0
inches with a peak discharge of 17.6 cfs through the primary outlet device.
The basin has a surface area of 7500 sf at the permanent pool. With a contributing drainage area
of 146,362 sf at 40% impervious, this provides a TSS removal efficiency of >85% per Table 10-
2 in the NCDENR Stormwater BMP Manual.
The site plans were previously approved by NCDWQ in April 2007 in accordance with coastall
stormwater management rules in effect at the time.
For all questions regarding the settling calculations, please contact Mike Walker, PE at w�
9192809889.
Sincerely,
ST RMWATER SERVICES GROUP, LLG
ames D. Frei
Senior Project Manager
Enclosure.
cc: File

a
NCDENR
Name C Y w— Dci•wrtrr - or
Er+vina•,nerrr — Nrt — Rcsa C+
NOTICE OF INTENT
Division of Water Quality / Surface Water Protection
National Pollutant Discharge Elimination System
NCG140000
FOR AGENCY USE ONLY
Date Received
Yeaz I
Month
I Da
pq
! 2.
1
erlif-icate of CoveraKe
C 1 4
Check 4 Amount
Permit Assigned to
L
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 3273 " Ready Mixed Concrete
For new plant sites that will discharge or recycle process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to Construct (ATC) wastewater
treatment facilities. ATC requests must be submitted at least 90 days prior to construction'.
For existing plant sites discharging or recycling process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to continue to operate wastewater
treatment facilities in place. Construction, modification, or installation of any new treatment components
at an existing site requires an ATC.
Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures
treating process wastewater flows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the
same time as the Certificate of Coverage (COC) for the NCG 14 permit. Design of treatment facilities
must comply with requirements of 15A NCAC 2H .0138 & .0139,
Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant
sites requires submission'of three (3) sets of plans and specifications signed and sealed by a
Professional Engineer (P.E.) or qualified staff2 along with this application. A copy of the design
calculations should be included. Please see questions 14 & 15.
t For questions, please contact the DWD Regional Office for your area. (See page 5) MW
(Please print or type)h�
1) Mailing address
of own�operat�o_ (address.to•which all
permit correspondence will be mailed): �1��
Name
Tzr9m 49NrrE7-cam
Street Address
lv
City
w/)u 6av-/4�c State ii/G- ZIP Code ?$5'Y4
Telephone No.
Z57Z
Fax: Z _..__ _3S3 /7Z4
v 2) Location of facility producing- discharge
Facility Name
NPD 71E?*M eyMCXETc --
�)er¢�yrSl3aea
Facility Contact
TIN!
Street Address
lvZZ NEW D/74// &to
City
6,a �/T513O,�0
State _IV4- ZIP Code 57
County
T%1'9 lGv
Telephone No.
25x 5 /
Fax:
Page 1 of 5
IAs per 15A NCAC 2H .0106
2Unless treatment facilities are designed, constructed, and put into operation by employees internal to the company who are qualified to
perform such work for their respective companies in accordance with General Statutes, 89C-25 (7), plans and specifications must be signed
and sealed by a P.E.
SWU-229-091007 Last revised 09/10/07

NCG140000 N.O.I.
3) Physical location information:
Please provide a narrative description of how to get to the facility (use street names, state road numbers, and
distance and direction from a roadV�-
tersection). fV C 54 � G�
1, Z Ml SoM N G T'� I>� QiV rr] _.� = . IN MjT ) S 0- % Al f
(A copy of a county map or USGS quad sheet with facility clearly located on the map is a required part of this application.)
4) Latitude �*0 1 0I. l &q Longitude Vb �• �2 I -(deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
❑ New or Proposed Facility Date operation is to begin
' 0' Existing
6) Standard Industrial Classification:
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: �%/ 2 7 3
7) Provide a brief description of the types of industrial activities and products produced at this facility:
(Include a site diagram showing the process areas present at this facility.)
" VAC I LI" VMOWJ G c;i 14!2 4bw 441 X
r 8) Discharge points 1 Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? I
What is the name of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? UT `i +0 Dy' w IPEt►+�,'R kx_..-j?1VEFL
If the site stormwater discharges to a separate storm sewer sys m, name the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer).
Receiving water classification (if known): SG
Note: Discharge of process wastewater to receiving waters classified as WS-II to WS-V or SA must
be approved by the N.C. Dept. of Environmental Health. If DEH does not approve, coverage
under NGG140000 cannot be granted. No new discharges of process wastewater are
permitted in receiving waters classified as WS-I or freshwater ORW.
9) Does this facility have any other NPDES permits?
�No
J ❑ Yes
If yes, list the permit numbers for all'current NPbES permits for this facility:
10) Does this facility have. any Non -Discharge permits (ex: recycle permits)?
%Z1 No
❑ Yes
If yes, list the permit numbers for all current Non -Discharge permits for this facility:
11) Does this facility employ any best management practices for stormwater control?
El 0
Yes
It yes, please briefly describe: , VTr' MO$J POIV PA
XT•
Page 2 of 5
SWU-229-091007 Last revised 09/07/2007

NCG140000 N.O.I.
12) Does this facility have a 5tormwater Pollution Prevention Plan?
❑ No
9/Yes
If yes, when was it implemented? 41dV&VAOZ_ 304 2ov7
✓ 13) Are vehicle maintenance activities occurring or planned at this facility?
C No
❑ Yes
Wastewater Treatment Design Information
✓ 14) Are discharges occurring or planned from any of the following process wastewater generating activities?
Vehicle and equipment cleaning i(Yes ❑ No
Wetting of raw material stockpiles {[1 Yes ❑ No
Mixing drum cleaning VYes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater.
For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
1 area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH — 6-9 SU, Total
Suspended Solids (TSS) -- 30 mg/l, and Settleable Solids (SS) — 5 ml/l.) [Use separate sheet(s)].
If all these discharges are recycled, please refer to Question 15.
For plants that recycle and/or discharge process wastewater:
When applying for this permit, you are also applying for an authorization to construct (new
treatment facilities) or authorization to continue to operate (existing treatment facilities) as
part of the NOI. For new sites, you must submit three (3) sets of design plans and
specifications with this application and provide supporting calculations that predict
compliance of final discharge with permit limits. For existing sites, applicants should submit
three (3) sets of plans and specs for facilities as -built and provide as many design details as
possible, or submit a detailed diagram of treatment systems in place that includes information
such as tank volumes, dimensions, retention time, piping, settling basin details, etc.
Please note: N new treatment systems are planned for an existing site, an ATC will be required
prior to construction of those facilities. Plans/specs/calculations prepared by a P.E. and the
request for an ATC may be submitted with this NOI, or separately at a later date. DWO may
request the status of your plans for requesting an ATC upon issuance of the COC.
15) Does the facility use or plan to use a recycle system?
J eNo
❑ Yes
W
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
year, 24-hr rainfall event
For a recycle system (regardless of when it overflows), please provide plans, calculations, and design
specifics (e.g., throughput assumptions/water balance, design volume, retention time, surface area, amount of
freeboard in design storm event, etc.). [Use separate sheet(s)].
For a sufficient application, the information must demonstrate compliance of final discharge with permit
�r effluent limits (pH-6-9 SU, Total Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS)-5 mIll), 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.
5 W U-229-091007
Page 3of5
Last revised 09/07/2007

NCG140000 N.O.I.
16) astewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
r❑ Yes If so, include information to demonstrate protection from flooding. (Minimum design
requirements for treatment works include protection from the 100-year flood, per 15A NCAC 2H .0219.)
17) Hazardous Waste:
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility?
,"No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per month) of
hazardous waste?
tOfNo
❑ Yes
c) Is this facility.a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
%Ef No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
18) Certification:
North Carolina General Statute 143-215.6 B(I) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other
document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules of the
[Environmental Management] Commission implementing this Article shall be guilty of a Class 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10,000).
I hereby request coverage under the referenced General Permit. I understand that coverage under this permit
will constitute the permit requirements for the discharge(s) and is enforceable in the same manner as an
individual permit.
I certify that I am familiar with the information contained in this application and that to the best of my
knowledge and belief such information is true, complete, and accurate.
!�, ���3/ � 328
Printed Na a of Person Signing: w c P
Title: ec ''iui\n
(Signatu of Applicant) (Date Signed)
Notice of Intent must be accompanied by a check or money order for $100.00 made payable to:
NCDBNR
Page 4 of 5
SWu-229-091007 Last revised 09/07/2007

NCG140000 N.O.I.
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
R!" Check for $100 made payable to NCDENR.
This completed application and all supporting documentation (including design details and calculations for
treatment systems).
Ka
❑ If an Erosion & Sedimentation Control (E&SC) Plan is required from Division of Land Resources (DLR)
or local designee: documentation verifying applicant has developed and submitted that Plan to the governing
agency (required per 15A NCAC 02H .0138).
❑ For new sites (or sites that will install new treatment facilities): Three (3) copies of plans and
1 specifications for wastewater treatment facilities (including recycle systems), signed and sealed by a
Professional Engineer or qualified staff meeting requirements of G.S. 89C-25 (7).
lyd For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including
1� recycle systems) as built, stamped and sealed by a Professional Engineer, or (only if plans not available) a
detailed diagram of treatment systems in place that includes information such as tank volumes, dimensions,
retention time, piping, settling basin details, etc.
A site map showing, at a minimum, (existing or proposed):
(a) outline of drainage areas, (b) stormwater/wastewater treatment structures, (c) location of
stormwater/wastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures,
(e) areas where materials are stored, (f) impervious areas, and (g) site property lines.
A county map or USGS quad sheet with location of facility clearly marked.
Mail the entire package to:
Stormwater Permitting Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Note
The submission of this document does not guarantee the issuance of an NPDES permit.
For questions, please con fact the DWO Regional Office for your area.
DWQ Regional Office Contact Information:
Asheville Office ...... [phone]
Fayetteville Office
... [phone]
Mooresville Office
... [phone]
Raleigh Office ........
[phone]
Washington Office ...[phone]
Wilmington Office
... [phone]
Winston-Salem ......
[phone]
Central Office .........(919)
733-5083
Page 5 of 5
5WU-229-091007 Last revised 09/07/2007

NPDES Permit Application
DPD Team Concrete, Inc.
Grantsboro, NC
Stormwater and Process Wastewater Control Plan
M

DENR-DC3
02 OV2006
DETAIL CHECK LIST
CHECK
NO,
PAYORNENDOR
NAME
AMOUNT IF
DESCRIPTION
49998
Greensville Mixed Concrete
100.00
T :1
4 0
i_ fi II
11
a 11
'......Z
w II i€
I,
il.
$ I DETAIL TOTAL DEBITS
a 1 100.00 DETAIL TOTAL CREDITS
Back of Cash Receipts Journal Voucher with Summary
USE PINE( PAPER

ABC CENTLIRA BANK 049998
G R FENVI�,LE. NC 27B34
� ;ky GREENVILLE READY MIXED CONCRETE, INC. sat
'^`��,�y, DPI) TEAM CONCRETE
P.O. eox ,eas 49998
THE RIGHT MIX! WINTERVILLF, NC ZB590
***One Hundred & Nof100 Dollars
DATE AMOUNT .
112/11/09 $100.00 1
TOTIIt NC DEPT OF ENVIR & NATURAL RE�1�ff M,-,R-i1� •{�•• 4`'°141 ti'ItI"1 li„I� �f..., t`l'.
ntu',CR i 2- 5 „i,,, tlsR 10 gplR .•..,
DIVISION OF WATER QUALITY elf:.'
1617 MAIM SERVICE CENTER GREENVII-LE:
❑Pn RETE, a4C.
TEAM CONCRETE
RALEIGH, NC 2-1699-1617
ii'

Table of Contents
• Narrative
• Location Map
-• Site Plan and Details
o Runoff and Settling Calculations
. Fortran Documentation

NARRATIVE
DPD Team Concrete, Inc.
Grantsboro, NC
Background
"✓A9E:
The existing concrete batch plant is located at 622 New Ditch Road in Grantsboro, Pamlico' 2 °
County, NC and is situated on the east site of New Ditch Road. The 3.36 acre site was
constructed in 2007. Stormwater management facilities were constructed at the time per state
requirements.
The property is generally flat with only gentle slope constructed when the site was developed.
Approximately 55% of property is gravel traffic areas and 7% is impermeable (buildings,
concrete, etc.).
Existing Stormwater Management Facilities
Ground slopes designed to direct runoff to the stormwater management facilities, which include
a drainage ditch on the south and east property lines that direct runoff to the stormwater retention
ponds and a two -basin Retention Pond. Basin 1 has a capacity of 7,952 CF (59,480 gallon) and z �' • �co°
functions as a forebay. Basin 2 is a 39,152 CF (292,857 gallon) settling basin. A piped outlet
structure controls the water elevation and defines the permanent pool.
Wastewater Collection Facilities
A concrete truck drum wash area is located near the rear (east site) of the property. Drum wash ^'PODS
water is collected on the concrete pad and drains directly into Basin 1 (Forebay). It is estimated
that a maximum of 25 loads (drum washes) will occur per day, yielding approxirnately��
gallons of wash wastewater per day. /V l'j'[Je
jWastewaterr Control Measa_rcs
The existing stormwater control facilities were evaluated for their ability to capture suspended
solids in the drum wash. wastewater. The analysis shows that existing basins will capture 100%
of suspended solids.
pH control will be required. DPD Team Concrete will install a CO2 feed system, Fortran) to
neutralize the high pH wastewater in Basin 2.
SEAL
14992
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S� �'•� ti 1201 �,_ � _ ��z
:j _
DPD Team Concrete
+t - II kurli ���' ' `•' . ` ` J .Substavk
tionti�� / f
1p
u �"� .-. •'`• Geri } -��
Grants'
IF�:}Qz \ �_ �tri'�----." !!+.x •,• -.; ti '' ' "sue-.!
11 •�F• ,Za J �-r� iv �~ tip. j«`
.J t • 1 ,r,--lam. J '� ��~1`.�...I
y�.,�Ch t' y f I
134
t• I It o
`/�,�} / I
/I 1 ' Ytj -1 1f t +•� 4L �� a- / t
BAYBORO, NC (1983) QUADRANGLE
7.5 MINUTE SERIES, 1:24000
MAP 1 - SITE LOCATION MAP
DPD Team Concrete - Grantsboro Stormwaler Pollution Prevention Plan
NPDE'S Permit No. NCG140000 Page 4

NR� B,g
NEW DITCH RD
- ' - •0�— - - - - - - - - _ _ SR 1200 (66 PUBLIC R/W)
96 LY9 A180.SGSIN — — — — .— — — — — —
- - - - - - - - - - - - - - - - - - - - - - - - - - - -
-- ^--- -- — — — — — -- — — — — — — — —r
sNEw 3r OMGIEACE EASEMENT F
I
_o
}
iB /J
�RCULATION AREA
BL'001
NEM TO' ORA6NY�L': EAgYEM`
l
NI
1I
GRASS FrELO. TO REMAIN I
i
g
fl
�I
I
PLAW EK67NG DOCK TO BE FILLED
I
SILO TOP OF BANK EXISTING DITCH
EXISTING DITCH, TO REMAIN -
1
C/L EXSTING DITCHISBN
w a
1
I
I
I
I
� $ $
`
T CIRCU�LATtW AREAT
4
PROPOSED
I
CONCRETE Tftcx
I
WASH -DOWN AREA
I
I
I
66 {6
I
— — — —
_— — — — — _ _ — —
-- -_
— — LEDISTINc DRCH, To RE" LiMI�URBAMCE -- ---
1
- +� aa' DRAINAGE EASEMENT
-
5.D0 ACRES
A MAIY II
oDm VIBE MI PRO :>
alrM rlfE�
THE ANGLE FOR GRADED SLOPES AND FILL %ALL BE NO GREATER
THAN THE ANCLE THAT CAN BE RETANED BY YECETATIVE COVER
OTHER ADEOUAIE ERD90N CONTROL DEIACES OR STRUCTURRES IN
ANY EVENT, SLOPES LEFT EXPOSED NTLL, WITHIN 21 CALENDAR DAYS
OF COMPLETION OF ANY PHASE OF GRADING, BE PLANTED OR
OTHERWISE PRO XD MATH TEMPORARY OR PERMANENT GROUND
COVER. DEVICE& OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION.
1243
120
X
rBll[6T mw—,
rWOECi pArA
PC so Wil
WOTRAIL[ IK 28590
EI67}i7A-0"g
TSTIL {ROPER11 AIMA. 500 AMES
SITE rcp" %w
IlIaLi
I. NO SECTION IOI YERAi05 ARE PRISENi 04 THE
PRmcT SITE
7- NO REUSE NNNAX &MR AREA$ K"AEED
LOW i5A HPAC ON DI51 ON V{ PROECT SITE
} THE RELf71NIG .0111E COURY FOR 1N5 PIgLCf K
SONM PRONG a M BAT AVER. GIBS St. S� XPA
MAIl7FXANCF PLAN
�. Hi EROSION APO SEDIMENTATION CONTROL DEVICES SHALL
BE CHECKED FOR STABILITY AND OPERATION FO.U00NG
EMERY RUNOFF-PROOUCNG RAINFALL EVENT AND IN NO
CASE LESS THAN ONCE EVERY MEEK, ANY NEEDED
REPAIRS PILL SE MADE IMMEDIATELY 10 MAINTAIN ALL
DEMCES N THE OPERATING CONDITIONS IITHNDED-
I- ALL AREAS wu BE SEEDED. FERTI,IiED. AND RESEEDED
AS NECESSARY AND MULCHED ACCOFMC TO
SPECIfICA710NS IN THE VEGETAMN PLAN IN ORDER TO
ESTABLISH AND MAINIAN A VIOORDDS. DM VECETAnVE
COVER
3. ANY SEDIENT TRACKED ONTO THE ADJACENT PUBLIC
ROAD SHALL BE REMOVED ON A DAILY BASIS
4. %DRMENT SMALL BE REMOVED FROM BEMNO SILT FENCNO
MI CHECK DRIES MREP THE SEDMENT ACCUMULATES TO
A DEPTH OF ONE FOOT
5 THE S7WVWA7FR RETENTION PM %+ALL SE CLEANED OF
ANY ACCUNULATED MWENT UPON THE COMPLETION OF
CGNSTRUCTION.
T. SECURE PROJECT PERMITS,
2. CONDUCT PRE -CONSTRUCTION CONFERENCE
3. 0IS1µL GRAVEL CONTROL ENTRANCE.
4. INSTALL SET FENCING,
5. INSTALL STOREMATER RETENTION POND TD ACT AS SEDAMENT BASIN
0. FIE OW ! STABILIZE PAWK AREAS
7. INSTALL SITE BPROVEMENTS
B SEED AND MULCH ALL dSTUM AREASASTABLISI PERMANENT VEGETATION
4 RESEED AS NECESSARY TO ESFABIM VEOETATXIlL
T:
ALL FILL MATERIAL NEEDED TO COMPLETE
THE PROJECT NOT GENERATED FROM ON SITE
GRADING ACTIVITIES SHALL BE OBTAINED FROM
A PROPERLY PERMITTED BORROW PIT FACILITY
� o Ts b ea
d- -
GRARRC FAME
SCALE: I A,X
r Am
Q
c m
N�
Y Z H
.G Z N1
O� rQ
TWO.
z EW4
zW�o
All
5"0
Q Vag
Q
0.-
z H
� F �
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O >
o � O
4
EL
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ILT
ITNm
C
an
1 PRRCTM0
® OEOI DAM
an
*MFAltD SWALE
r
ti0TE4
' SEE DEEM A, SHEET C4 FOR TYPICAL PAYEMENT SECTION
4.REVECETATE ALL DISTURBED AREAS IN ACCORDANCE
VATS THE PROJECT VEGETAION PLAN, SEE
DETAIL G. SHEET C4.
MAiNTENAACE PLAN_
I ALL EROSION AND SEDIMENTATION CONTROL DEMCES 94ALL
BE CHECKED FOR STAB4ITY AND OPERATION FOLLOW
EVERY RUNOrr-PRDDUDNO RAINFALL EVENT AND IN NO
CASE LESS MAN ONCE EVERY WEEK. ANY NEEDED
REPAIRS WILL BE MADE IMMEDIATELY TO MAfNIA& ALL
DEVICES N THE OPERATNG COCITIONS UNTENDED.
2. ALL AREAS RILL BE SEEDED, FERTILIZED, AND RESEEDED
AS 14ECESWY AND MULCHED A000110040 TO
SPECIFICATIONS N THE VEGETATION PLAN N ORDER TO
ESTNX& AND MANTAN A WO7ROUS. DENSE Y[GEIATNVE
COVER.
ANY SEDIMENT TRACKED ONTO THE ADJACENT PUBLIC
ROAD SHALL BE REMOVED ON A DAILY BASIS
SEDIMENT SHALL BE REMOVED FROM BEHIND SILT FENCING
R PECK DAMS MO THE SEDIMENT ACCUMULATES TO
A DEPTH OF DIE FODT.
THE STORMINATER RETENTION POET 94ALL BE CLEANED OF
ANY AOCUKILATED SEDIOT UPON IK COMPLETION OF
CONSTRUCTION
1OUERCE OF OPERA10L
T, SECURE PROJECT PERMITS
2. OMCT PRE•COVsTRuC130N CONFERENCE
I INSTALL GRAVEL CONTROL ENTRANCE.
4. INSTALL SILT FENCING
S INSTALL STORYWATER RETENTION POND TO ACT AS SEDIMENT BASIN
& FINE GRAM t STABILIZE PARKING AREAS
T. INSTALL SITE WMYDAXTS
$ SEED AND wACK ALL DISTURBED AREASjtSTABUSH PERMANENT VECETATION
9. RESEED AS NECESSARY TO ESTABUSN 4EGIVAIM
NOT
ALL FILL MATERIAL NEEDED TO COMPLETE
THE PROJECT NOT GENERATED FROM ON SITE
GRADING ACTIVITIES SHALL BE OBTAINED FROM
A PROPERLY PERMITTED BORROW PIT FACILITY
"on-t
CRASS PEW, TO REMASN
30LF 15' CHAP-L -" �
k 19Mll[T 9WME M 1
au 1
NEW 37' ORANCGE EASELENI 1 —
�I,D2� -
,JVAYEL FJwft twiVAINE
1 ou
y 11 so2.0
n
4W 4r
1`
TNC DITCH, TO REMAIN.
E
10.
— ROD
Cwae t
10' THICK REINFORCED 1` 1
CONCRETE TRUCK
WASH- DOW PAD 1 • 1 1
>1 1
11 / TOP OF Baar EMNsiWHO DRtN �, ys '
�f EMNSTNO rCH, TO EE �ILLED T(
RIOPOSCD WVEL/ASPHALT
TOP OFIg1NK EI05FfIC TRAr'FC CINCJUTION AIWAI
DITCH T IRENAw
1 1920
G�Ss FEW 40
I
ttt.6�
ti 102.0
Q 1
EA WAAL M111R0.
1
1 1 ,020
99.D
1 ,: 1
ti � S' 11 00 S
V 1 1 t
+ 1 _
1 5 �
+5 + + 1
1 � +
1
A
,*
2�
= --4£W IV DRAINAGE ERWAiNT
1
- �}4Vis kI %mTAlu SCALE f
PAtA B BROO,S, SR
D
CA EKISiWVG ITCH, RE
MAIN EWN O[FD BOOK BS PAGE t5
T TAM D. F042.99
ki
c ,aae
6' CIWrB
I I
##I
gl
"I "I
'xr, +I1D5
i
PLAN VIEW - TRUCK WASH -DOWN AREA
(NOT TD SCALE)
00.9 100.9
L
10• THICK REINFORCED J 98 S
CON " TRiIpL
WASH -DOWN PAD C/L FLOW SPREADER Nl
C/i NEW SAi
10' DRAINAGE EASEMENT
CROSS SECTION - TRUCK WASH -DOWN AREA
(Mar TO SCALE)
C/L EMI$DND DITCH, TO REMAIN
TRUGN MASHDOMN PAD DSCU Aft
A EARLE IRELAND
A NPDES PERMIT SHALL BE SECURED BY THE PROJECT OWNER
DEED" 148 PACE 729
PRIOR 10 THE OPERATION OF THE CONCRETE RAM, A WASH DOWN
TAM 0: F04.24
PAD SHALL BE DESIGNED AND PEWED TO A CO+FQIIRATION
SI" THAT SHOWN 04CH IRLt PREVENT TRIO HASH# DOWN
RNSATE COMAMNATED WITH SEDIMENT OR SOLIDS FROM
EMERIND THE STORWATER POND.
i
T WA9(TOTMY PAD SCHEMATIC
C2 C1 NO TO SCALE
w
sm.
THE ANGLE FOR GRADED SLOES AND FILL SHALL BE NO GREATER
THAN THE ANGLE THAT CAN BE RETAINED BY VEGETATIVE COVER
OTHER ADEORATE EROSION OONTROL DEUCES OR STRUCTURES IN
ANY EVERT, SLOPES LEFT (NNW WELL. WITHIN 21 CALENDAR DAYS
OF COMPLETION OF ANY PHASE OF GRADING, BE PLANTED OR
GTHERWFSE PROVIDED METH TEMPORARY OR PERMANENT GRCIm
COVER DEHGES. OR STRUCTURES SUFFICIENT TO RESTRAIN EROSION,
,A o n w NID
lsF"Yr
GRAPHIC ,SCALE
SCALE: I -36
Z
Nr
00
N
W =�N
Z E is
z W
c �M
a)
a
tD 1y
O"ov'
a�
c!
4�
n
4
z �
b tz
:r� F >=i
C] E--
©� h
tLi
o O
o Y'
O
Y Fi
c
06142C2 DWG

m
w
50'
__955
96
AN
NGI. SE1
I
CROSS SE ION
49 3
T r1
RETENTION
PERMANENT POOL = 96.0
CD
0
ti
,
91
}
4 9 5 I
DACE
}
96�
97
98
99
100
EDGE OF PAVEMENT EDGE OF PAVEMENT
A ENLARGED STORMWATER POND PERMANENT POOL ELEVATION = 96.0', AREA = 7,500 SF
c3 C3 SCALE 1•=1D' TEMPORARY POOL ELEVATION = 971, AREA = 8,992 SF
5--.APS 24' O.C. ANC? CEO
RASH SCREEN N CONCRETE 12' 101
(TrPlcu or A)
SD LF 15 CUP OUTLET PIPE
PLAN
ICE TBI Am51 - A
24- WP RI5ER
TRASH SCREEN
E3 REBAR 0 fi' O.C. E.W.
3' WOE . 1/4' THICK PETAL
STRAPS 24' OC, ANCHORED
N CONCRETE 12' MN
(TyICAL OF A)
6' CA INLET PIPE
CONTINUOUSLY KtDTD
TO RISER
rc•
e•
INLET PRE - L
•
' ' ,
HARLIWAPF CLOTH AND
STAnLESS STEEL STRAP
NIP Tf 1
"
AND40R 24' CMP RISER N
q
CONCKTE 3AR PLACE CONCRETE
INSIDE OF MR TO EL .l. D
--�
PROVIDE FIRU AND STALRE
SUPPORTING AREA FOR RISER
AND CONCRETE ANCHORAGE
4' SOUARE
1 OUTLET STRUCTURE
C3 C3 NOT TO SCALE
LF 1E' CYP OUTLET PK
- �.
A
3' WDF , 5S' THCK CONCRETE
ANCHORAGE FOR PIPE
SECTION
OUTLET STRUCTURE ELEVATION CHART
A B C D IE F
POND 98.2 97.2 96,0 95.095.0 92.0
PROVIDE 3V Dix ANTI -SEEP
COLLAR$ CON11WOUSL?
ALLDEO TO BARREL
0 20' O.0
PROVIDE PLANTINGS SP CIFIED AROUND
FULL POND PERIMETER �TG FOOT STRAP)
(2:)STORMWATER DETENTION POND CRDSS-SECGON
C3 C3 NOT TO SCALE
PERIMETER SHELF PLANTING LIST
SCIENTIFIC NAME
COMMON NAME
SIZE
IRIS VRCINICA
BLUE FLAG IRIS
LARGE PLUG
PELIANDRA VIRCOCA
ARROW ARUM
LARGE PLUG
SAGITIARIA LANCIFOLIA
BULLTONGUE
LARGE PLUG
SAGITTARIA LATIFOLIA
DUCK POTATO
LARGE PLUG
SPARCANIUM AMERICANUM
OUR-RECC
LARGE PLUG
ZIZANIOPSIS MILIACEA
WATER MILLET
LARGE PLUG
PROVIDE EVEN NUMBER OF SPECIES PLANTED Al 18- O.C. IN
ALL DIRECTIONS.
REFERENCE: COASTAL PLAIN CONSERVATION NURSERY, INC.
3067 COMMERCE DRIVE
EDENION, NC 27932
[phone]
FULL POND OME PLANTINGS
ER METESICCED 0SR5TRIP)
I
40 O 0 70 10
GRAPHIC SCALE
SCALE: 1'-21
SF�IL N
_ "gwuauA�"

Project: DPD Team Concrete, Inc. Computed: MLW Date: 8/1/08
Subject: Concrete Plant Wash Water Settling Time Calcs
Task: Calcs. For cement particles Sheet 1 Of 5
Comments
Gravity, g= 32.2 ft/sec2
avg. diameter of cement particle (microns), d= 15 microns
1 micron= 3.28E-06 ft
avg. diameter of cement particle (ft), d= 4.92E-05 ft
density of cement, p1= 94 lb/ft'
density of water, p2= 62.4 Ib/ft3
viscosity of water— 5.98E-04 If/ft-sec
Particle settling velocity (ft/sec), V=gd2(pl-p2)/18Et= 2.29E-04 ft/sec cement particle
Settling Depth= 4 ft
Settling Time= 17,475 sec
4.85 hrs
0.20 days
Wash water produced= 15 gallcy
Estimated daily capacity of batch plant-- 450 cy
Estimated wash water produced per day= 6,750 gal
1 gallon= 0.133681 ft3
Estimated wash water produced per day-- 902 ft3
Total volume of basin 1 provided= 7952 ft'
see sed basin talcs.
Detention time available in basin 1= 8.8355556 days
Total volume of basin 2 provided= 39152 ft3
see sed basin talcs.
Detention time available in basin 2= 43.502222 days
Total volume of all basins= 47104 ft'
Total detention time available (washwater)-- 52.337778 days
Qja 11.26272 cfs f om stormwater sed basin talcs.
L= 60 ft from sed basin talcs.
Depth of flow over discharge weir (ft), D=(Q/(3.1 *L))2(3= 0.15 ft
Qw�,Q 0.025 cfs assume 10 hr workday
Depth of flow over discharge weir (ft), D=(Q/(3.1 *L))2'3= 0.003 ft washwater only
14992
�pgEt L �• ��/a
^Af1COSra"* /
c
0
DPD Team Concrete NOI Calculations

M
ou
Project: DPD Team Concrete, Inc Computed: MLW Date: 8/1/08
Subject: Concrete Plant Wash Water Settling Time Calcs
Task: Calcs. For cement particles Sheet 2 Of 5
Critical Velocity basin 1, Vc1= 393E-06 to settle to bottom 4.00 ft
Wash water only critical velocity basin 1, Vc1= 3.443E-09 to settle to weir 0.003 11
Stormwater critical velocity basin 1, Vcl= 2.02E-07 to settle to weir 0.154 ft
Basin I
Grain size of Portland Cement (2004 N1ST. stud
Diameter
(microns)
Size
distribution
%<
Diameter ft
Settling
Velocity
Vpl
(ft/sec)
Time, days
Xr=VplNcl
%that settle
to bottom
Xr-VpiNcl
%that settle
to weir
1
4.7
4.7%
3.28E-06
1.02E-06
34.130
25.89%
100.00%
1.5
2.6
7.3%
4.92E-06
2.29E-06
1 1 15.169
58.25%
100.00%
2
4.8
12.1%1
6.56E-06
4.07E-06
1 8.533
100.00%
100.00%
3
5.6
17.7%
9.84E-06
9.16E-06
3.792
100.00%
100.00%
4
4.6
22.3%
1.31E-05
1.63E-05
2.133
100.0o%
100.00%
6
7.6
29.9%
1.97E-05
3.66E-05
0.948
t00.00%
100.00%
8
6.0
35.9%
2.62E-05
6.51E-05
0.533
100.00%
100.00%
12
10.5
46.4%
3.94E-05
1.46E-04
0.237
100.00%
100.00%
16
8.2
54.6%1
5.25E-05
2.60E-04
0.133
100.00%
100.00%
24
t 3.8
68.4%
7.87E-05
5.86E-04
0.059
100.00%
100.00%
32
10.3
78.7%
1.05E-04
1.04E-03
0.033
100.00%
100.00%
48
12.4
91.1%
1.57E-04
2.34E-03
0.015
100.00%
100.00%
64
5.2
96.3%
2.10E-04
4.17E-03
100.00%
100.00%
96
2.8
99.1%
3.15E-04
9.38E-03
100.00%
100.00%
128
0.4
99.5%
4.20E-04
1.67E-02
M0.004
100.00%
100.00%
>128
0.5
100.0%
-
-
100.00%
100.00%
During dry operation all particles will settle more than 0.007 ft. Therefore, there is no discharge into basin 2.
During rain events all particles will settle more than 0.154 fi. Therefore, there is no discharge into basin 2.
Critical Velocity basin 2, Vcl= 7.982E-07 to settle to bottom. 4.00 ft
Wash water only critical velocity basin 2, Vcl= 6.993E-10 to settle to weir 0.003 ft
Stormwater critical velocity basin 1, Vc1= 4.103E-08 to settle to weir 0.154 ft
Basin 2
Grain size of Portland Cement 2004 N1ST study)
Settling
Velocity
Xr=Vp1Ncl
Xr=Vp1Ncl
Diameter
Size
Vpl
%that settle
% that settle
(microns)
distribution
%<
Diameter ft
ft/see)
Time, days
to bottom
to weir
1
4.7
4.7%
3.28E-06
1.02E-06
34.130
1 100.00%
100.00%
1.5
2.6
7.3%1
4.92E-06
I 2.29E-06
15.169
100.00%
100.00%
2
4.8
12.1%
6.56E-06
4.07E-06
8.533
100.00%
100.00%
During rain events all particles will settle more than 0.154 ft. Therefore, there is no discharge from basin 2.
_.aee94EJ09Jnp��B V
14992
DPD Team Concrete NOI Calculations
,�a�998■OgaQa�a�`

M
Project: DPD Team Concrete, Inc. Computed: JRH Date: 3/5/07
Subject: ' Concrete Plant Wash Water Settling Tune Calcs
Task: TSS Passing Basin 2 Sheet 3 Of 5
Weight of Concrete Settled per Basin: (rainfall and washwater combined)
'Concrete will not be produced during rain events.
CY/day Wt_ Cement
450 760.5
Diameter
microns
Size
distribution
Basin 1
to weir
Basin 2
to weir
Weight
cement
< 2 m
Pass to
Basin 2
Discharge
from
Basin 2
Settle in
Basin 1
Settle in
Basin 2
1
4.7
100.00%
100.00%
35.74
0.00
0.00
35.74
0.00
1.5
2.6
100.00%
100.00%
19.77
0.00
0.00
19.77
0.00
2
4.8
100.00%
100.00%
36.50
0.00
0.00
36.50
0.00
Total:
92.02
1 0.00 J
0.00
92.02
1 0.00
DPD Team Concrete NOI Calculations

Project: DPD Team Concrete, Inc. Computed: MLW Date: 8/l/08
Subject: Concrete Plant Wash Water Settling Time Calcs
Task: TSS passing basin 2 Sheet 4 Of 5
Estimation of TSS from basin 2: (from cement)
Concrete trucks will be washed out after every load. It is expected that 130 lbs of concrete will washed from each
10 CY truck load or 13 lb/CY.
The design for portiand cement on this project is approximately 530 lbs/CY and the average CY of concrete weighs
4,000 lbs. therefore the weight of cement averages 13% per CY of concrete.
Waste concrete at 15 lbs/CY with 14.1% of the weight coming from cement will yield 2.1 lbs/CY of cement that
will adhere to the truck and be included in the wash water.
See weight of concrete settled per basin calculations.
*Suspended cement discharging from basin 2 during rain event-- 0.00 lbs
*If operations ran during rain events, which they will not.
To be conservative assume that 30% of the settled particles discharge to basin 2
30% of
weight
Basin 2 to
weir
Discharge from Basin 2
0.00
100.00%
0.00
0.00
100.00%
0.00
up During a rain event we can assume that previously settled particles distribute themselves evenly through the depth of
the basin. To be conservative assume that 30% of the settled particles descharge from basin 3
30% of
weight
Basin 2 to
weir
Discharge from Basin 2
0.00
0.00%
0.00
0.00
0.00%
0.00
Total Suspended cement discharging from basin 2= 0.00 lbs
Volume of basin 2= 292877 gal
Estimated daily TSS= 0.000E+00 lbs/gal
lmg/1= 8.345E-06lbs/gal l:
Estimated TSS during a rain event- 0.0 mg/l
Estimated TSS during normal production= 0 mg/I
Maximum allowable TSS= 30 mg/1
SEAL
14992
V"E �V�
L4'to
It is recommended that basins be cleaned and sediment removed when 1/2 of the storage volume has been used.
DPD Team Concrete NOI Calculations

Project: DP_D Team Concrete, Inc. Computed: _MLW _ Date: 811108
Subject: Erosion Control - Concrete Plant Site
Task: Sediment Basin Shod 5 Of 5
Basin Location: Concrete plant site
Calculate Time of Concentration (tj to _ IL7/Mo;3as/128 (Malcom)
Hydraulic length of watershed L (ft) = 690
Elevation change along length H (ft) = 3.0
••• t. (min) = 9.7
use tc (min) = 10.0
Calculate Peak Flow Q=CIA
C= 0.4
I (in/hr)-- 8.4 10-yr, 5-min storm NC F&S Design Manual, Figure 8,03c, Washington
A (Ac.) = 3.36 Drainage Area (used in calculations)
Qio (cfs)= 11.3
Q,,n,,,,Q= 0.03
Qtotal= 11.3
Sediment Storage
Minimum Storage Required (cf / Ac) 1,800 NCDOT Guidelines
Sediment Storage c 6,049 min required storage volume
Surface Area
A (SF) = 0.01 *QIo* 43,560 NC E&S Guidelines, 6.60.2
A SF 4,917 min required surface area for 75% efficiency
*Minimum Total Size Basin
Bottom Full
Length (ft) 224 240
Width (ft) 44 60
Side -slope 2 (X:1)
Depth 4 ft at spillway
Conclusion:
Construct the trap to be:
240 ft top length
60 ft top width
4 ft deep at spillway
5.5 ft top of dam
2 :1 side -slope
60 ft weir length
volume calculations for geometric rectangular trap
stage
area
volume
cum. Vol.
(SF)
(CF)
(CF)
0
9,856
944 z x 'i' 10 400;. < _wt` I 0 400 .b tl
2
12,064
11,504
21,904
3
13,216
12,640
34,544
4
14,400
13,808
48,352
Retention in basin 1:
8.33 days
Retention in basin 2:
41.01 days
Total:
49.34 days
*Basin surface area and volume to be divided between two basins in series.
Surface Area (SF)
Basin Length (ft) Width (ft) Top Bottom Volume (CF)-
Basin 1 (Forebay): 45 60 2,700 1,276 7,952
Basin 2: 195 60 11,700 7,876 39,152
`4
SEAL
14992
DPD Team Dancrate NOI CaWatlons

FORTRANS pH CONTROL SYSTEMS
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.
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
stormwater run off regulations. Treated water may
also be used in water recycling systems.
These systems offers 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
2-30' 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.
Fortufmc-mins.
PERFECT SO >UTION =;
FORTRANS, INC. • 7400 C. Siemens Rd. - Wendell N.C. 27591
1.866.365.8760 1.919.624.8832
€[e-mail] www.fortrans.biz
The 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.
The Model 5000-SK Skid Mounted pH Control
System contains all of the instrumentation and
components of the regular Model 5000-S System
and is shipped on a 44"x47" plastic skid with a 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 tubing to the sample cell and from the
CO2 solenoid valve to the Sparger stone feed
assembly must be inserted after receipt of the unit.
The system features a 115V-30Amp Breaker Box
and two GFCI receptacles. The system is shipped
with a CO2 feed system.

M
s
EORTRANS pH CONTROL SYSTEMS - MODEL 5000-S & 5000-SK
Overhead view
Intake line detail
Return line detai
Fortrans,
.r
I [IT' cam lock -
quick connect
Option
w�
t 1/2" schedule 80 union should be
located above water line so that check
valve can be cleaned
1 l/Z" PVC check valve.
locate 12" from the bottom
of the basin
3/4" PVC ball
valve to facilitate
easy priming of
pump
In
Set overhead view for crurea pipe
placement in basin. This part of
the re tttrta line is rotated 90' over
the basin wall_
Return line is installed on interior
ltoo
1 1/2" carpamck
side of settling basin. Fasten with
quick connect
1 1/2" pipe clamps-
G Basin wall
_. -
r-
:c
`Water flow --
Return line outlet
proximately 12" from
bottom of the basin
- -- — _ — - - :_ _
= 12" '`--,•
Return line outlet is
-
constructed with
1 1/2" schedule 80 PVC