HomeMy WebLinkAboutNCG140375_COMPLETE FILE - HISTORICAL_20090702STORMWATER DIVISION CODING SHEET
NCG PERMITS
PERMIT NO.
/VC,,& Ic-Jv.3-75
DOC TYPE
6a HISTORICAL FILE
❑ MONITORING REPORTS
DOC DATE
❑ � uO D % O �
YYYYMMDD
Mr. Richard R. Allen, Sr.
Concrete Service Company
NCG 140375
January 25, 2008
Engineer's Certification (COC No. NCG140375)
1:, A na legeman , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically, weekly, full time) the
construction of the project, concrete service co Plant N. .Deancheater Road for the
Project Name Location
Permittee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the following installations: .
• Construction of a process wastewater -recycle system at the Concrete Service Company
Ready Mix site.
I certify that the construction of the above referenced project was observed to be built within
substantial compliance and intent of the approved plans and specifications.
Signature
Date
Mail this Certification to:
Registration No. 31804 _
Stormwater Permitting Unit
NC Division of Water Quality
1617 Mail Service Center
Raleigh, NC 9.7699-1617
i ts` . ,
W-0
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rEE53
=r .
Act0W A rFgpG I}Michael F. Easley, Governor
7 f William G. Ross Jr., Secretary
r North Carolina Department of Environment and Natural Resources
Q Coleen H. Sullins, Director
Division of Water Quality
January 25, 2008
Mr, Richard R. Allen, Sr.
Concrete Service Company
PO Drawer 1867
Fayetteville, NC 28302
Subject: General Permit No. NCG140000
Concrete Service Company
COC No. NCG140375
Cumberland County
Dear Mr. Allen:
In accordance with your application for a discharge permit received on January 11, 2 00 8,
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 May 9, 1994 (or as subsequently
amended).
Please take notice that this certificate of coverage is ndi 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. This permit does 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.
An Authorization to Construct treatment facilities has been issued concurrently with
this COC. The Fayetteville Regional Office, telephone number (910) 433-3300, shall be
notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an
in -place inspection can be made. 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 this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with the NPDES Permit, the associated
Authorization to Construct, and the approved plans and specifications. Please mail the
certification (attached) to the Stormwater Permitting Unit, 1617 Mail Service Center, Raleigh,
NC 27699-1617.
NP Carolina
�tura!!�
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 276994617 Phone (919) 733-5083 Customer Service
Internet: www.ripwaterquality,ora Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-9612 1-877-623-6748
An Equal Opportunity,'AHlrmative Action Employer— 50% Retycled110% Post Consumer Paper
Mr. Richard R. Allen, Sr.
Concrete Service Company
NCG140375
January 25, 2008
Please note that any future construction, installation, or modification of wastewater
treatment facilities (including process wastewater recycle systems) will require an Authorization
to Construct (ATC) prior to construction per 15A NCAC 2H .0138 & .0139. You must submit,
in triplicate, plans/specifications and design calculations, stamped and sealed by a professional
engineer, with a letter requesting an ATC to the Stormwater Permitting Unit, 1617 Mail Service
Center, Raleigh, NC 27699-1617.]
One (1) set of approved plans and specifications is being forwarded to you. The
Permittee shall maintain a copy of the approved plans and specifications on file for the life of the
facility. If you have any questions concerning this permit or Authorization to Construct, please
contact Robert Patterson at telephone number (919) 733-5083 ext. 360.
Sincerely,
j2
for Coleen H. Sullins
cc: Fayetteville Regional Office
Central Files
Stormwater Permitting Unit Files
enclosure
Mr. Richard R. Allen, Sr.
Concrete Service Company
NCO140375
January 25, 2008
Engineer's Certification (COC No. NCG140375)
I, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically, weekly, full time) the
construction of the project, for the
Project Name Location
Permittee hereby state that, to the, best of my abilities, due care and diligence was used in the
observation of the following installations:
• Construction of a process wastewater recycle system at the Concrete Service Company
Ready Mix site.
I certify that the construction of the above referenced project 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 9.7699-1617
STATE OF NORTH CAROLINA
DEPARTMENT, OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140375
STORMWATER AND PROCESS WATER 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,
Richard R. Allen, Sr. / Concrete Service Company
is hereby authorized to discharge stormwater from a facility located at
Concrete Service Company
W. Manchester Road
Fayetteville
Cumberland County
to receiving waters designated as Tank Creek, a Glass C water in the Cape Fear River Basin, in
accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III, IV, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall, become effective January 25, 2008.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 25`h day of January, 2008.
for Coleen H. Sullins., Director
Division of Water Quality
By the Authority of the Environmental Management Commission
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NCG140375
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Map Scale 1:24,00
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Richard R. Allen., Sr.
Concrete Service Company
Latitude: 351 11' 24" N
Longitude: 780 591 4211 w
Receiving Stream: Tank Creek
Stream Class: C
Sub -basin: 03-06-14 (Cape Fear River Basin)
Facility Location
Re: NCG140375 - Concrete Service Company
Subject: Re: NCG140375 - Concrete Service Company
From: Mike Lawyer <Mike.Lawyer@ncmail.net>
Date: Wed, 23 Jan 2008 16:54:46 -0500
To: Robert Patterson <Robert.Patterson@ncmail.net>
No concerns with issuing them permit coverage, but since its related to the Fayblock
site we'll (regional office) have to keep a close eye on them.
Mi ke
Robert Patterson wrote:
Mi ke,
I'm helping Ken get this one issued. He already met with the engineer and
reviewed the application package; looks good. Do you have any concerns with it?
It discharges to Tank Creek (class C) in northwestern Cumberland County.
Thanks.
Michael Lawyer
Environmental Specialist
NCDENR-Division of Water Quality
Surface Water Protection Section
Fayetteville Regional Office
Direct: (910)433-3329
Main: (910)433-3300
Fax: (910)486-0707
1 of 1 1/24/2008 7:13 AM
MID -ATLANTIC
ASS 0CIATE S,INC.
Engineering & Environmental Solutions
409 Rogers View Cowl /Raleigh /North Camlina /27b10
800-486-7568 /919-250.9918 /919-250-9950 Fewshnile
rntrx: rnaunn 1 ine. r:am
January 11, 2008
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: RESPONSE TO RETURN OF NCG140000 NOI #1166 AND
RE -SUBMITTAL OF NOTICE OF INTENT
CONCRETE SERVICE COMPANY, INC.
WEST MANCHESTER ROAD
SPRING LAKE, NORTH CAROLINA
MID -ATLANTIC PROJECT NO.000R1944.00
Dear Mr. Pickle:
RECEIVT='.r. 1
JAN I Y ?L?rr3
BY: 1t9
This letter serves as a response to your December 7, 2007 letter and as a cover letter for the re -
submittal of the Notice of Intent for the above site to be covered under general stormwater permit
NCG140000. Please note that the submittal has been revised to address the comments outlined in
your December 7, 2007 letter. For ease of review, we have addressed each comment below in the
order in which they were presented.
1. Site Plan
a. The property lines/project boundaries have been added to the drawing.
b. The drainage areas have been delineated on the drawing.
c. The locations of outfalls have been noted on the drawing.
d. The limits of the aggregate storage areas have been noted on the drawing.
Drainage from all aggregate storage areas is designed to flow into the pond.
e. There are no industrial activities associated with Drainage Area 2 as this area only
includes the site offices. The only outfall associated with Drainage Area 1 is the
discharge from the pond.
f. All conveyance features are shown on the drawing.
2. Design Notes and Design Details
a. The soils report has been removed from the re -submittal. Although we expect the
basin to provide some infiltration of water, we have demonstrated compliance with
permit limits through other means. The calculations presented in Attachment A
demonstrate discharge compliance with total suspended solids (TSS) limits and a
Fortrans pH adjustment unit (Model 5000-S or 5000-SK) will be used to adjust the
pH in the pond.
b. The pH test result has been removed from the re -submittal.
c. The large basin noted in your letter is actually two basins. The first basin is a
temporary sediment basin to be removed after construction. After construction the
site will use one large pond to settle solids. The attached drawing depicts the
configuration after construction with the temporary sediment basin removed.
Response to Return of NCG140000 NOI #1166 January 11, 2008
Concrete Service Company, Inc. Page 2
West Manchester Road
Spring Lake, North Carolina
There will be no need to empty the basin as discharges will be within permit limits.
d. The locations of the drum wash out area, truck wash area, aggregate piles, and
plant wash down area have been noted on the drawing. Wastewater generated in
these areas flows into the pond.
e. The correct configuration of the reclaimer system has been noted on the drawing
and details included in Attachment B.
f. If some groundwater leaches into the basin(s) it should not be a problem since our
compliance calculations (Attachment A) are based on a worst case scenario of the
basin being at capacity when the 25 year/24 hour storm occurs.
g. The fogging water used to irrigate the aggregate stockpile will be well water.
We appreciate the opportunity to submit this additional information. If you have any questions or
need additional information, please do not hesitate to call us at 250-9918_
Sincerely,
MID -ATLANTIC ASSOCIATES, INC.
009��
Darin M. McClure, PE
Principal Engineer
Attachment: Notice of Intent
Attachment A — Calculations
Attachment B — Scrommel Reclaimer System
Drawing
CC" Mr. Lanny Clark; Concrete Service Company, Inc.
Mrs. Adriana Hegeman, Crawford Design Company
1944.00/12-28-07/Response to Additional Info Request/DMM/aso
MID -ATLANTIC
ASSOCIATES INC.
Engineering & Environmenial Solulions
NOTICE OF INTENT
MID -ATLANTIC
ASSOCIATES, INC.
Engineering & Environmental Sviutinnr
-01
F-BWA Division of Water Quality / Surface Water Protection
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NCDENRNational Pollutant Discharge Elimination System
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[nvinpHnFM u.o Ru�n4. ReyqrtCC3
NCG140000
NOTICE OF INTENT
Date Received
Year Month D.,
Check N
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 recce 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 NCG14 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 statf2 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. (Seepage 5)
(Please print or type)
1) Mailing address of owner/operator (address to which all permit correspondence will be mailed):
Name Richard R. Allen Sr.
Street Address P.O. Drawer 1867
City Fayetteville T _ State NC ZIP Code 28302
Telephone No. 910 323-8509 Fax: (910) 323-9319
2) Location of facility producing discharge:
Facility Name Concrete Service Company
Facility Contact Lanny H. Clark''=
Street Address W. Manchester Road
City Spring bake State NC ZIP Code 28390
County Cumberland
Telephone No. ( 910) 483-0396 Fax; (910) 486-6724
Page 1 of 5
As per 15A NCAC 2H .0106
'Unless treatment facilities are designed, constructed, and rnal to the company who are qualified to
perform such work for their respective companies in accord a I I C (7), plans and specifications must be signed
and sealed by a P.E.
SWU-229-091007 JA N 1 1 2008 Last revised 09/10/07
BY:
U014ui fF f 016h11
Travel N on NC Hwy 87 (N. Bragg Blvd.) from downtown Spring
3) Physical location information: Lake toward Sanford, NC. Make left turn onto W. Manchester Rd.
Subject propexty is approx. 0.52 miles on left hand side.
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).
{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 35011 ' 24. 36"
Longitude 78059' 41 .64" (deg, min, sec)
5). This NPDES Permit Application applies to which of the following:
N New or Proposed Facility
❑ Existing
6) Standard Industrial Classification:
Date operation is to begin 02/28/08
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 2 7 3'
7) Provide a briet 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.)
Eq4dy Mix concrete plant.,Industrial activities include concrete reclaimation,
truck wash, stockpile irrigation and plant wash down. _._...... _
8) Discharge points 1 Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? One
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? Little River
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). No
Receiving water classification (if known):
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?
® No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
10) Does this'facility have any Non -Discharge permits (ex: recycle permits)?
R] 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?
0 No
® Yes
If yes, please briefly describe: _ General good housekeeping and a concrete_reclaimation
system. stormwater ioond and 1oH adjustment unit designed to treat stormwater.
Page 2 of 5
SWU-229-091007 Last revised 09107I2007
' NCG140000 N.O.I.
12) Does this facility have a Storrnwater Pollution Prevention Plan?
❑ No
KI Yes
If yes, when was it implemented? After construction is complete. �T
13) Are vehicle maintenance activities occurring or planned at this facility?
® 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 in Yes ❑ No
Wetting of raw material stockpiles ® Yes ❑ No
Mixing drum cleaning i1 Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater. Use of a reclaimation system, stormwater detention pond and pH adjustment
unit,
-1+ 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/I, 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 existim 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 ATC 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?
® No
❑ 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 valance, 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
4 effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/I, and Settleable Solids (SS) — 5 ml/1), or
must demonstrate that the recycle system has sufficient capacity to contain runoff from a 25-year, 24-hr
rainfall event plus one loot of freeboard under design operating conditions.
Page 3 of 5
5WU-229-095007 Last revised 09/07/2007
NCG140000 N.O.I.
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
® No ❑ 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?
® No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
® No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste: NA
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport 1 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.
Printed Name of
Title: t eat;
(Signature of R 1icant) (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
SWU-229-091007 Last revised 09/07/2007
NCG140000 N.O.E.
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
❑ 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)
1�= 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
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).
VV❑ For existing sites: three (3) copies of plans and specifications for wastewater treatment facilities (including
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 contact the DWQ Regional Office for your area.
DWO Regional Office Contact Information:
Asheville Office ......
(828) 296-4500
Fayetteville Office ...
(910) 433-3300
Mooresville Office ...
(704) 663-1699
Raleigh Office ........
(919) 791-4200
Washington Office ...(252)
946-6481
Wilmington Office ...
(910) 796-7215
Winston-Salem ......
(336) 771-5000
Central Office ..:......(919)
733-5083
Page 5 of 5
SWU-229-091007 Last revised 09/07/2007
A
REFERENCES:
1.OVERHILLS, NC AND MANCHESTER, NC DIGITAL RASTER GRAPHIC FILES,
SCALE: 1:24,000
US GEOLOGICAL SURVEY. SCANNED FROM 1:24,000-SCALE USGS TOPOGRAPHIC
MAPS (OVERHILLS, NC, 1957 PHOTOREVISED 1971, AND MANCHESTER, NC, 1997).
Feet
2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION O
2,000
4,000
ATLAS, BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON. D.C. ,DUO
DRAWN fy�
DATE:
TOPOGRAPHIC SITE MAP
BY: 7T"'11
JANUARY 2008
DRAFT
CHECK:
JOB NO:
00OR1944.00
D-ATLANTIC
CONCRETE SERVICE COMPANY
WEST MANCHESTER ROAD
ENG.
Gi5 NO:
Engineering & 8nvironmentnl Goll:tiona
SPRING LAKE, NORTH CAROLINA
CHECK:
01G-R1944.40-1
APPROVAL:
DWG NO: 1
r
CSC_ Spring Lake Plant Calculations - Job No. 000R1941.00
Process Wastewater Generated vs. Water Used at tho Site fThrougheutAfflalar Balance
Average work day
=
10
hours
Wash water produced
=
2
gallCY
(Truck and plant washdown)
Capacity of plant
=
3D0
CYlday
Wash water per day
- 600 gallons
Plant Washdown - 10 minuteslday at
1 gallon
= 0.133681 d
30 GPM - 300 gallons per day
Wash water per day
= 80 cf
Truck wash - 30 loads per day wilh 20 second
wash per load at 30 GPM = 300 gallons per day
Watedcu. Yd.
Total wash water = 800 GPD1300 CYO = 2 gallCY
of concrete
= 25 gallons
Water Use/Day = 7,500 gallons
Water needs exceed amount of wastewater produced each day.
Pond Characteristics
Length from entry to wier (Ft.) 190
Surface Area of Basin 1 when full (Sq, FL) 19497
Analysis below assumes pond is full when the 25-year storm occurs, The 25-year storm will produce a peak runoff rate into the system. By calculating settling
limes based on the peak runoff rate, we are assuming a worst case scenario. Note: Table references below are taken from Erosion and Sediment Control
Planning and Design Manual by the NC Sedimentation Control Commission, the NC Department of Environment and Natural Resources, and the NC Agricultural
Exlension Service.
Determination of Peak Runoff Rate Using tha Rational method
4=CiA
Given:
Drainage area (acres) 2.15
Maximum slope length (Ft.) 340
Vertical Drop (FL) 2
Average Slope (% foot per foot) 0.59%
Location (Table 8,03c) Fayetteville, NC
Find:
Peak runoff rate from 25-year frequency storm
Solution:
(1) Drainage area: 2.15
(2) Determine runoff coefficient. C. 0.95 Plant site consists of concrete surfaces
Note: Tc calculated from "Time of concentration of small drainage basins graph' attached.
C value for Concrete surfaces (fable 8.03b)
Tc A 2 minutes
Refer to Table 8.03c Intesity, Duration Frequency - Fayettevile, NC {since Tc<5, use intesily value for 5 min. ARq
25 year storm with a 5 minute duration is 8.94 incheslhour - This number (8.94 Incheslhour) is a conservative
number and will be used for intensity factor, I.
Calculate Peak Runoff for Site
Calculate the peak runoff al the drainage area that occurs during a particular design storm even[.
Op = CiA
Op = peak rate of runoff in cubic feet per second (efs)
C = coeficient of runoff
I = Intensity of rainfall in inches per hour
A = drainage area in acres
Coefficient of runoff; C
Rainfall intensity; i =
Drainage Area
Peak Runoff, RP a
Runoff Volume
Calculate Discharne Characteristics from Pond
Weir Length =
Calculate depth of Flow Over the Discharae Weir
H = JQr(3.1'L)("0,6667
H = depth at Bow over weir in feet
0 = Bow in cis
L - length of weir
During rain event Qp =
Hp =
0.95
8.94 inches/hour 25 year storm
2.15 acres
15.25 cis
5321.00 cf (Sae Hydrograph)
39806.40 gallons
150867.23 liters
®g
Fran6s formula
18.26 ds
0.815 ft
Calculate Critical Velocity of Particles in Basin 1 During Peak Flow
Worse case scenario for particles discharging off site occurs during peak flow conditions.
Vc = OplA
Ve - Critical velocity in f /sec
Qp = Peak Flow
A = Average surface area of basin
Critical velocity (Vc) = 0.00093655 fUsec
Retention lime of particle (Rp) during peak flow - Average Basin Length at Surface I Vc = I OUNc
Retention Time (Rp) = 202872 seconds
Critical settling velocity (Vc') for particle to settle to weir (rain) - HplRp
Critical settling velocity (Vc') = 4.0192E-06 fVsec
'From EBSC manual (Fayetteville)
Determine which solids wig dischame over well
Our analysis will focus on cement particles due to their small size. Cement particles are the least
likely to settle and therefore the most likely to discharge from the site -
Calculate particie settling velocity (Vp) and compare it to Vc'. If Vc' a Vp, then those solids will discharge over the weir
Formula for Calculating Particle Settling Velocity (Vp):
Partide Settling Velocity (fUsec), Vp = g(pl-p2)d'2118u Stokes Law
g = gravity =
32.2 Nsec'2
d = diameter of
cement particle (it)
1 micron =
3,28084E-06 it
p1 = density of cement -
94 Wall
p2 = density of water =
62.4 Itdcf
u = viscosity of water =
0,0005981 Ibih-sec
Source, NISTIR 6931 "Analysis of the ASTM Round•Robin Test on Particle Size Distnbluion of Portland Cement, Phase 0
_. _..... „
_...
_
Settling
Critical
Diameter
size distribution
%C
dlameter (it)
Velocity; Vp
settling
Discharge over
(microns)
Velocity;Ve
Welr(Y!N)
-
-
-
(fusee)
(nlsec)
1
4.7
4.7
3.28084E-06
1.0173E-06
4.0192E-06
Y
1.5
2.6
T3
4.92126E"06
2.269E"06
4,0192E-06
Y
2
4.8
12.1
6.56168E-06
4.0694E-06
4.0192E-06
N
3
5,6
17.7
9.84252E-06
9.1561E-06
4,0192E-06
N
4
4,6
22.3
1,31234E-05
1.6277E-05
4,0192E-06
N
6
7,6
29.9
1.96850E-05
3.6624E-05
4.0192E-06
N
8
6
35.9
2.62467E-05
6.511E-05
4.0192E-06
N
12
10.5
46.4
3.93701E-05
0.0001465
4.0192E-06
N
16
8.2
54.6
5.24934E-05
0.00026044
4.0192E-06
N
24
13.8
68.4
7.87402E-05
0.00058599
4.0192E-06
N
32
10.3
78.7
1.04967E-04
0.00104176
4.0192E-06
N
48
12.4
91.1
1.57480E-04
0.00234395
4.0192E-06
N
84
5.2
96-3
2.09974E-04
0,00416703
4.0192E-136
N
96
2.8
99.1
3.14961E-04
0,00937582
4,0192E-06
N
128
0.4
99.5
4.19948E-04
0,01666812
4,0192E-06
N
�128
0.5
100
-
4,0192E-06
N
Based on these calculations, particles 1.5 microns and smaller will discharge over the weir.
Calculate Total Suspended Solids Concentration
Assume oarticles 1.5 microns and smaller will discharge
Diameter
Volume of
weighted subtotal of
% Total
size distribution %c
Particle
Weighted
(microns)
(microns)
Volume
Volume
Volume
1 4.7 4.7
0.523
0.0248 0,0246
0.0001%
1.5 2.6 7.3
1,766
0.0459 0,0705
0.0002%
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
6.5910 1t,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%
16 8.2 54.6
2143.573
175.7730 297.9979
0.741%
24 13,8 6B.4
7234.560
998.3693 1296.3672
3.224%
32 10,3 78.7
17148.587
1766.3044 3062.6716
7.616%
48 12.4 91.1
57876.480
7176.6835 10239.3551
25.481%
64 5.2 96.3
137108.693
7133.8121 17373.1672
43.201%
96 2.8 99.1
463011.840
12984.3315 30337.4987
75,438%
128 0.4 99.5
1097509.547
4390,0382 34727.5369
86,355%
128 0.5 100
1097509.547
5487.6477 40215.0846
100.000%
40215.0846
Particles 1.5 microns and smaller make up 7.3% of the total particles but 0,0002 % of the total volume.
Since the density of all the particles Is assumed the same, then particles 1.5 microns and smaller
also
represent approximately 0.0002% of the mass.
Estimated amount of cement from redaimer
I
lb/day
See reclaimer calculations
Estimated amount of cement washed from under plant
40
thlday
Estimated amount of cement washed off each truck
1
I lb1CY
Estimated amount of cement washed off each truck
300 Utley
Mass of cement discharged 10 pond
341 lb/day
Mass of cement to discharge - Mass of cement discharged to pond each day x % of mass =
0,0006 pounds
=
271.23 mg
Total Suspended Solids of Discharge (TSS) = Mass of cement (mg) ! Volume
of Storm Runoff (Liters)
TSS -
271.2349248
! 150667.23
Anticipated TSS (mglL) = 0.0018 mg1L
Maximum TS$ (mgll.) - 30 mg1L
Calculate settleable solids discharge
Methodology for sellable soiitls measures the volume of settleable solids in an Imhoff cone after 60 minutes.
An fmhofl cone is approximately 14-inches tall. Results are reported in ml/L. The following table cafcutates
the time for particles to settle 1 ", 6" and 14",
Settling Valo[1ty
"
1SettlingTlme
6" Settling
14" Settling
Diameter (microns)
(lusec)
Time (minutes)
Time (minutes)
(minutes}
1
1,01734E-06
1365.21
8191.28
19113,00
1.5
2.28902E-06
606.76
3640.57
8494.67
2
4.06937E-06
341.30
2047.82
4778.25
3
9.15607E-06
151.69
910.14
2123.67
4
1.62775E-05
65.33
511.96
1194.56
6
3 66243E-05
37.92
227.54
530.92
From calculations above, particles 1.5 microns and smaller will lake longer than 60,minutes to settle only 6",
Anticipated Settleable Solids - 0 mVL
Maximum allowable Settleable Solids = 5 mVL
pH Analysis
A Fodrans pH control system (or equivalent) will be installed at the discharge point of pond
CSC - Sprinn Lake Plant Reclalmor Calculations - Job No. 1944.00
Process Wastewater Entering Reclainer System
Trucks wastied out per day
8
Gallonsitruck washout
=
200
gallons
CemenUCY of mix
=
500
pounds
CY of washout per truck
=
1
CYlday
Wash water per day
= 1600 gallons Water discharged into reclaimer per day
1 gatlon
= 0.133681 cf
Wash water per day
= 214 cf
Cement per day
= 4000 pounds Cement discharged into reclaimer per day
Calculate average now of water entering system. This assume that conerele is continuing to be reclaimed during the 25-yearl24-hour storm,
Average flow through velocity
= 30.00 g p m Hose now velocity,
= 3.74 cfs
Surface Area of Reclaimer Pit Area for Settlement Calculations (Worst
Case Scenario)
Basin 1
ft
Length of weir x width of basin 1 12' x 12')
Basin 2
ft
26' x 12'
Basin 3
EEM
it
26' x 12'
Basin 4
ft
3T x 12'
Basin 5
49' x 12'
Calculate Discharge Characteristics from Basin 1
Weir Length t2 ft
Calculate depth of Flow Over the Discharpe Weir
H=101(3.1'L)]^&6667 Francis formula
H - depth of flow over weir in feet
O=flow incfs
L - length of weir
Op . 3.74 cfs
Hp = 0.216 f:
Calculate Critical Veloclly of Parkin in Basin 1_During Peak Flow
Worse rase scenario for panicles discharging off site occurs during peak flow conditions.
Vc - OplA
Vc = Critical velocity in ftlsec
Op - Peak Flow
A - Average surface area of basin
Critical velocity (Vc) = 0.02597394 fUsec
Retention time of particle (Rp) during peak now = Average Basin Length at Surface! Vc= 12'Nc
Retention Time (Rp) = 462 seconds
Critical selfling velocity (Vc') for particle to settle to weir (rain) = Hp/Rp
Critical settling velocity (Vc') = 0.00046802 Wsec
Determine which solids will discharge over weir
Our analysis will focus on cement panicles due to their small size, Cement particles are the least
likely to settle and therefore the most likely to discharge from the site.
Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc' n Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (tUsac), Vp - g(p1-p2)d'2118u Stokes Law
g - gravity
32.2 fUsec'2
d - diameter of
cement particle (ft)
1 micron -
3.28084E-06 fl
pt - density of cement =
94 Iblcf
p2 - density of water =
62.4 IblCI
u = viscosity of water =
0,0005981 Iblff-sec
Source: NISTIR 6931 "Analysis_ of the ASTM Round -Robin Test on Particle Size Dist6btuion of Ponland Cement: Phase II
SeMing
Critical�-'
Diameter size dlstrlbutlon
%<
diameter (h)
Velocity; Vp
Settling
Discharge over
(microns)
(111secj
Yalocity;Vc'
Weir(YIN)
1
4.7
4.7
3.28084E-06
1.0173E-05
4.6802E-04
Y
1.5
2.6
7.3
4.92126E-06
2.289E-06
4.6802E-04
Y
2
4.8
12.1
6.56168E-06
4.0694E-06
4.6802E-04
Y
3
5.6
17.7
9.84252E-06
9.1561E-06
4.6802E-04
Y
4
4.6
22.3
1.31234E-05
1.6277E-05
4.6802E-04
Y
6
7.6
29.9
1.96850E-05
3.6624E-05
4.6802E-04
Y
8
6
35.9 .
2.62467E-05
6.511E-05
4.6802E-04
Y
12
10,5
46A
3.93701E-05
0.DO01465
4.6802E-04
Y
16
8.2
54,6
5.24934E-05
0.00026044
4.6802E-04
Y
24
13.8
60.4
7.87402E-05
0,00058599
4.6802E-04
N
32
10.3
78.7
1.04987E-04
0 00104t76
4.6802E-04
N
48
12A
91.1
1.57480E-04
0,00234395
4.6802E-04
N
64
5,2
96.3
2.09974E-04
OA0416703
4.6802E-04
N
96
2.8
99.1
3.14961E-04
0.00937582
4.6802E-04
N
128
0.4
99.5
4.19948E-04
0.01666812
4.6802E-04
N
>128
0.5
100
-
4.6802E-04
N
Based on these calculations, particles 16 microns
or leas will discharge over the
weir.
Calculate Discharge
Characteristics from Basin 2
Weir Length
=
12 fl
Calculate depth of Flow Over „the Discharge Weir
H = (0!(3.1-L)1-0,6667
Francis formula
H - depth of flow over weir in feet
Q = flow in cis
L - length of weir
Qp = 3.74 cis
Hp- 0.216 ft
Calculate Critical Velocity of Particles Flowina Throuah Basins 1 3 2
Worse case scenario for particles discharging off site occurs during peak flow conditions.
Vc = QpIA
Vc = Critical velocity in fVsec
Op = Peak Flow
A = Average surface area of basin
Critical velocity (Ve) - 0.0082023 fVsec
Retention time of particle (Rp) during peak flow = Average Basin Length at Surface; Vc = 38'Arc
Retention Time (Rp) - 4633 seconds
Critical settling velocity (Vc') for particle to settle to weir (rain) - HP/Rp
Critical settling velocity (Vc') = 4.6672E-05 fusec
Determine which solids will discharge over welr
Our analysis will focus on cement particles due to their small size. Cement particles are the least
likely to settle and therefore the most likely to discharge from the site,
Calculate particle settling velocity (Vp) and compare it to Vc'. It Vc' a Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (fllsec), Vp = g(pl•p2)d*2/lau Stokes Law
g = gravity - 32.2 fusec"2
it - diameter of
cement padicte (ft)
1 micron = 3.28084E-06 it
pl - density of cement 94 Ibcf
p2 = density of water = 62.4 Ibld
u - viscosity of water a 0.OD05981 Uft-sec
Source: -NISTIR 6931 "Analysis of the ASTk1 Round -Rohm Test on Particle Size Distribtumn of Portland Cement: Phase II
Settling
Critical
Diameter
size distributionX�
diameter (it)
Velocity"Vp
settling
Discharge over
(microns)
Iftleec)
velocity;
Weir(YIN)
1t1sefuse)
cl
1
4.7
4.7
3.26084E-06
1,0173E-06
4.6672E-05
Y
1.5
2.6
7.3
4.92126E-06
2.289E-06
4.6672E-05
Y
2
4,8
12.1
6.56168E-08
4.0694E-06
4.6672E-05
Y
3
5,6
17.7
9.84252E-06
9.1561E-06
4.6672E-05
Y
4
4,6
22.3
1.31234E-05
1.6277E-05
4.6672E-05
Y
6
76
29.9
1.96850E-05
3.6624E-05
4.6672E-05
Y
B
6
35.9
2.62467E-05
6.511E-05
4,6672E-05
N
12
10.5
46.4
3.93701E-05
O.OD01465
4.6672E-05
N
16
8.2
54.6
5,24934E-05
0.00026044
4.6672E-05
N
24
13,8
68A
7.87402E-05
0,00058599
4.6672E-05
N
32
10,3
78.7
1.04987E-04
0,00104176
4.6672E-05
N
48
12.4
91.1
1,57480E-04
0,00234395
4.6672E-05
N
64
5.2
96.3
2.09974E-04
0,ON16703
4.6672E-05
N
96
2.0
99.1
3.14961E-04
0,00937582
4.6672E-05
N
128
0.4
99,5
4.19948E-04
0.01666812
4.6672E-05
N
>126
0.5
100
-
4.6672E-05
N
Based on these calculations, particles 6 microns or lass. will discharge over the weir of Basin 2.
Calculate Discharge Characteristics from Basin 3
Weir Length = i2 ft
Calculate depth of Flow Over the Discharge Wei
H = [01(3.1-L)I"0,6667 Francis formula
H = depth of flaw over weir in feet
Q = flow 0 cfs
L - length of weir
flp = 3.74 cis
Hp = 0.216 h
Calculate Critical ValocIN of Particles Flowina Throuah Basin& 1. 2 @ 3
Worse case scenario for particles discharging off site occurs during peak flow conditions.
VC = QplA
VC = Critical velocity in ftlsec
Op = Peak Flow
A - Average surface area of basin
Critical velocity (Vc) = O.OD487011 fVsec
Retention time of particle (Rp) during peak flow -Average Basin Length at Surface / Vc = 64Wc
Retention Time (Rp) = 13141 seconds
Critical settling velocity (VC) for particle to settle to weir (rain) = HplRp
Critical settling velocity (VC) = 1.6454E-05 Wsoe
Datermine which solids wilt dischams over welt
Our analysis will focus on cement particles due to their small size. Cement particles are the least
likely to settle and therefore the most fikey to discharge from the site.
Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc' > Vp, then those solids wilt discharge over the weir.
Formula for Calculating Particie Settling Velocity (Vp);
Particle Settling Velocity (ftfsec), Vp = g(p1-p2)d'211Bu Stokes Low
g = gravity =
32.2 fllsec'2
d = diameter of
cement particle (A)
1 micron =
3.28084E-06 ry
pt = density of cement z
94 lWcf
p2 = density of water =
62.4 Iblef
u = viscosity of water =
0.0005981 Ibtft-sec
Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Panicle Size Dislnbluion of Portland Camenl Phase II
Setuing
Critical
Diameter
size distribution %<
diameter(R) Velocity; p
Settling
Discharge over
(microns)
Velocity; Ve
Welr (YIN)
Meo
fusee
1 4,7 4.7
3,28064E-06 1.0173E-06
1.6454E-05
Y
1.5 2.6 7.3
4.92126E-06 2.289E-08
1.6454E-05
Y
2 4.8 12.1
6.56188E-06 4.0694E-06
1.6454E-05
Y
3 5.6 17.7
9.84252E-06 9.1561E-06
1.6454E-05
Y
4 4,6 22.3
1,31234E-05 1.6277E-05
1.6454E-05
Y
6 7,6 29.9
1.96850E-05 3.6624E-05
1.6454E-05
N
8 6 35A
2.82467E-05 6.511E-05
1.6454E-05
N
12 10.5 46A
3.93701E-05 0.0001465
1.6454E-05
N
16 8.2 54.6
5.24934E-05 0.00026044
1.6454E-05
N
24 13.8 68,4
7.87402E-05 0.00058599
1.6454E-05
N
32 10.3 78.7
1.04987E-04 ❑.00104176
1.6454E-05
N
48 12.4 91.1
1.57480E-04 0.00234395
1,6454E-05
N
64 5.2 96.3
2.09974E-04 0.00416703
1.6454E-05
N
96 2.8 99.1
3.14961E-04 0.00937582
1,6454E-05
N
128 0.4 99.5
4.19948E-04 0.01668812
1,6454E-05
N
>128 0.5 t00
1,6454E-05
N
Based on these calculations, particles 4 microns or less will discharge over the weir of Basin 3.
Calculate Critical Velocity of Particles Flowing Thrvuah Basins 1, 2, S S 4
Worse case scenario for particles discharging off site occurs during peak flow conditions.
Vc = Op7A
' Op 8 Hp are
the same as with basins 1 through 3
Vc - Critical velocity in fVsec
Op - Peak Flow
A = Average surface area of basin
Critical velocity (Vc) -
3.09E-03
fVsec
Retention time of particle (Rp) during peak Bow = Average Basin Length at Surface I Vc = 101'Nc
Retention Time (Rp) =
32728
seconds
Critical settling velocity (Vc') for particle to settle to weir (rain) = HpfRp
Critical settling velocity (Vc') =
6.6066E-08
ft/sec
Determine which solids will dlachame over weir
Our analysis will focus on cement particles due to their small size. Cement particles are the toast
likely to settle and therefore the most likely to discharge from the site.
Calculate particle settling velocity (Vp) and compare it to
Vc*, If W ] Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (Rlsec), Vp = g(p1-p2)d"2I18u
Stokes Law
g = gravity =
32.2 fVsec'2
d = diameter of
cement particle (R)
1 micron
3.28064E-08 f1
pl c density of cement =
94 Iblef
p2 n density of water n
62.4 Iblef
u - viscosity of water =
0.0005981 Ib/H-sec
Source: NISTIR 6931 "Analysis o1 the ASTM Round -Robin Test on Partida Size Distribtuion of Portland Cement Phase II
Settling
Critical
Diameterr
size distribution %�
diameter (R) Ve; Vp
Settling
Discharge over
(microns)
(lusee)
(Rlse
Velocity; Vc'
Welr (YIN)
(Vsec)
1 4.7 4.7
3.28084E-06 1.0173E-06
6,6066E-06
.,.. Y
1.5 2.6 7.3
4.92126E-08 2.289E-06
6.6066E-06
Y
2 4.8 12.1
6.56108E-06 4.0694E-06
8.6066E-06
Y
3 5.6 17.7
9.64252E-06 9.1561E-06
6.6088E-06
N
4 4.6 22.3
1.31234E-05 1.6277E-05
6.6066E-06
N
6 7.6 29.9
1.96650E-05 3.6624E-05
6.6066E-06
N
8 6 35.9
2.62467E-05 6.511E-05
6.6086E-06
N
12 10.5 46.4
3.93701E-05 0.0001465
6.6066E-06
N
16 8.2 54.8
5.24934E-05 0.00026044
6.6066E-06
N
24 13.8 68.4
7.87402E-05 0.00058599
6.6088E-06
N
32
10.3
78,7
1.04987E-04
O,00104176
6.6066E-06 N
48
12.4
91.1
1.574BOE-04
0.00234395
6.6066E-08 N
64
5.2
96.3
2.09974E-04
0.00416703
6.6066E.06 N
96
2.8
991
3.14961E-04
0.00937582
6 6066E-06 N
128
0.4
99,5
4.19948E-04
0,01666812
6,6066E-06 N
>128
0.5
100
-
6,6066E-06 N
Based on theme calculations, particles 2 microns or less will discharge over the waif of Basin 4.
Calculate Critical VulocljiLof Particles Flowing Through Basins 1 2 14 3 5
Worse case scenario for particles discharging off sile'occurs during peak flow conditions.
Vc - Op/A
Op 8 Hp are the same as with basins 1 through 4
Vc - Critical velocity in fVsec
.
' Op - Peak Flow
A - Average surface area of basin
Crllical velocity (Vc) =
2.08E-03
111sec
Retention time of particle (Rp) during peak now - Average Basin Length
at Surface 1 Vc = 150'Nc
Retention Time (Rp) =
72188
seconds
Critical settling velocity (Vc') for particle to settle to weir (rain)
= Hp/Rp
Critical settling velocity (Vc') =
2,9953E-06
ltlsee
Determine which solids will discharge
over weir
Our analysis will focus on cement particles due to Iheir small size. Cement particles are
the leasl
likely to settle and therefore the most likely
to discharge from the site.
Calculate particle settling velocity (Vp)
and compare it to Vc'. If Vc' > Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (fusee), Vp =
9(p1-p2)d'2118u
Stokes Law
g = gravity =
32.2 fVsec'2
d a diameter of
cement particle (t)
1 micron =
3.28084E-06 fl
p1 = density of cement =
94 Iblcf
p2 - density of water =
62.4 Ih1cf
u = viscosity of water =
0.00059B1
Ihlt-sec
Source: NISTIR 6931 "Analysis of the ASTM Paund.Robin Test on Particle Size Distribtuien of
Portland Cement' Phase II
Settling
Critical
Diameter size distribution
diameter (ft)
Val -my; Vp
Settling
Discharge over
(microns)
� )
Velocity; VC
Walr(Y1N)
(117sec)
1 4.7
4.7
3.28064E-06
1.0173E-06
2.9953E-06
Y
1.5 2.6
7.3
4.92126E-06
2.289E-06
2.9953E-06
Y
2 4.8
12.1
6.56188E-06
4.0694E-OB
2.9953E-06
N
3 5.6
17.7
9.84252E-06
9.1581E-06
2.9953E-06
N
4 4.6
22.3
1.31234E-o5
1.6277E-05
2.9953E-06
N
6 7.6
29,9
i.96B50E-05
3.6624E-05
2.9953E-06
N
a 6
35,9
2.62467E-05
8.511E-05
2.9953E-06
N
12 10.5
46.4
3.93701E-05
0.0001465
2.9053E-06
N
16 8.2
54.6
5.24934E-05
0.00026044
2.9953E-06
N
24 13.8
68.4
7.87402E-05
0.00056599
2,9953E-06
N
32 10.3
78.7
1.04987E-04
0.00104176
2,9953E-06
N
48 12.4
91.1
1.57480E-04
0.00234395
2,9953E.06
N
64 5.2
98,3
2.09974E-04
a00416703
2.9053E-06
N
96 2.8
99,1
3.14961E-04
0,00937582
2.9953E-06
N
128 0.4
99.5
4,19946E-04
0.01666812,
2.9953E-06
N
>128 0.5
too
-
2.9953E.06
N
Based on these calculations, particles
1.5 microns or
less will discharge from Basin S.
Calculate Total Suopgrided Solids Concentration
Assume particles 1.5 microns and smaller will discharge:
_
Diameter
Volume of
Weighted
Subtotal of
% Total
slza distribution
(microns)
%e
Particle
Volume
Weighted
Volume
(microns)
Volume
1 4.7
4.7
0.523
00246
0.0248
0.0001%
1.5 2.6
7.3
1,766
0,0459
0,0705
0,0002%
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
1.54D7
2.6035
0.006%
6 7.6
29.9
113.040
8.5910
11.1945
0.028%
B 6
35.9
267.947
16,0768
27,2713
0.068%
12 10.5
46.4
904.320
94,9536
122,2249
0.304%
16 8.2
54,6
2143,573
175,7730
297.9979
0.741%
24 13.6
68A
7234.560
998.3693
1296.3672
3.224%
32 10, 3
78.7
17148.587
1766, 3044
3082, 6716
7.616%
48 12.4
911
57876.480
7176,6835
10239.3551
25.461%
64 5,2 96.3 437188.693 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%
128 0.5 100 1097509.547 5487.5477 402150846 100,000%
40215,0846
Particles 1.5 microns and smaller make up 7.3% of the total particles but 0.9002 % of the total volume.
Since the density of all the particles is assumed the same, then particles 1.5 microns and smaller also
represent approximately 0.0002% of the mass.
Mass of cement washed into reclaimer 4000 lb/day
Mass of cement to discharge = Mass of cement washed off trucks each day x % of mass = 0.00701 poundslday
0
6
H (fi)
rnn
Note:
Use nomograph Tc for natural basins with well-defined channels, for overland
flow on bare earth, and for mowed -grass roadside channels.
For overland flow, grassed surfaces, multiply Tc by 2.
For overland flow, concrete or asphalt surfaces, multiply Tc by 0.4.
For concrete channels, multiply Tc by 0.2.
Figure 8.03a Time of concentration of small drainage basins.
T /
-nin)
200
100
50
10
5
1
L r
5
8,03.4
Hydrograph Plot
Hydraflow Hydrographs by Intelisolve Thursday, Jan 10 2008. 4:11 PM
Hyd. No. 1
CSC Spring Lake Plant
Hydrograph type
= Rational
Peak discharge
= 17.74 cfs
Storm frequency
= 25 yrs
Time interval
= 1 min
Drainage area
= ' 2.150 ac
Runoff coeff.
= 0.95
Intensity
= 8.684 inlhr
Tc by User
= 5.00 min
OF Curve
= Fayetteville, NC.IDF
Asc/Rec limb fact
= 111
Q (cfs)
18.00
15.00
12.00
9.00
6.00
3.00
0.00
0
--
Hyd No. 1
CSC Spring Lake Plant
Hyd, No. 1 -- 25 Yr
5
Hydrograph Volume = 5,321 cult
Q (cfs)
18.00
15.00
12.00
. Ea
3.00
ATTACHMENT B
SCROMMEL RECLAIMER UNIT
MID -ATLANTIC
ASS 0CIATE S, INC.
Engineering & Environmental Solurions
,o
November 1 2006
SCROMMEL 2418 SPECIFICATIONS
Discharge Pan:
Two truck, Right, Left or Rear discharge
Discharge pan capacity:
1.2 Cubic Yard
Washout Stinger:
Dual truck
Primary Screw:
24 inch diameter x 24 feet long
Secondary Screw:
18 inch diameter x 18 feet long
Electrical Box:
480 volt 3-phase with motor protection,
weatherproof, ( 208 volt 3 phase and 240 volt 3
phase are optional ) with Auto Start/Stop loop
detector.
Electric motors:
Primary screw 10 HP, Secondary screw 5 HP
Gearboxes:
Primary screw, size 5, Secondary screw, size 4
Pump:
300+ gallons per minute
Screen:
Harp screen with 3/16" slots
Support Legs:
Optional
Complete Pit Drawings:
Size and concept drawings for clarification pits,
drying bunkers, truck ramps, etc.
Field Service and Support:
Factory man will be on -site for initial start-up and to
train your drivers on the operation of the
SCROMMEL.
Time of Delivery:
Normal lead times run 8 -10 weeks. As with any
product, these may vary according to demand.
Firm delivery dates will be given upon receipt of
down payment.
Shipping:
All reclaimers are shipped F. O. B. Salina, Kansas,
and is the responsibility of the customer.
SCROMMEL works with transportation companies
and can assist in this.
Payment:
A 20% deposit is required prior to order acceptance.
Balance is due prior to shipping.
Validity of price quote:
Written quotes are good for 30 days.
Producers using granite or similar stone, are required to purchase abrasion resistant flighting
Specifications are subject to change without notice
Note: Labor and materials for pit construction, plumbing, on -site electrical and assembly are
the responsibility of the purchaser.
F E D c B A
SCR❑MMEL RESOURCE MANAGEMENT, INC.
PI�'4:
I—aaD-595�-5293
DRAWN SY
MICK WODKE
SCALE
SKLE7
❑Vervlpx
1777 .RrgLD PVC.. K0. SOX i976, su]NA, KS 6701-91+3
rn]t
1-7B5-925-74D4
sntrsNnN
BRAD BY{�UISi
onTL � 7irLE
]0-04-2D07 '
2418
STRUCTURAL DETAILS MUST BE DETERMINED BY LICENSED ENGINEER IN ACCORDA14CE WITH LOCAL CODES I
C EO�'CCOWE RCTL SCRV]CC-FnTETTEV]L Lr, NC
•
EL 0
EL 0
EL 0
79•
70•
PER[?ufETER WALL EL-1
A
79'
7 B'
66'
B
I
r
79'
7 B'
66•
EL 0 rNNER'A
D
79'
78' -
17' 12,
EL 0 y
E
79'
713,
PER 4E
EL 0
F
EL + I'
W ALL
EL+I'
l2' WALL
EL+I'
I2' WALL
EL +I
WALL
EL +I'
WALL
EL+1•
"�'� •'^ m 1-70fe23-74Y4 HRAO w007
wr "u n LICCl CNGWIN N .CcmG.NfC VVH CS.r�
aovc—.,. �
a
1 Acre = 43,560 Sq Feet, 7,106143,560 = .1631 of an acre used for the
reclaimer system
1 inch of rain, on 1 acre, assuming no absorption = 27,154 gallons
.1631 x 27,154 = 4,428.81 gallons per inch of rain falling on reclaimer
sy stern
24 hour/ 25 year rain event falls between 6" & 7" in your area, I used the
high end 7"
7" x 4,428.81 = 31,001.67 gallons falling on reclaimer system in a 7" rain
event.
7.48 gallons in a cubic foot, 31,001.671 7.48 = 4,144.60 cubic feet of
storage required
The 26" of freeboard in the pit system provides 8,549 cubic feet of
storage. The upper 12" of the freeboard in the pit system will hold 4,383
cubic feet. 8,549 - 4383 = 4,166 cubic feet of storage below the 12"
freeboard to hold 4,144.60 cubic feet of rain from a 7" rain event.
Once again, thank you for your patience, we appreciate
your business.
Sincerely,
Brad Byquist
SCROMMEL Reclaimers
Attachments: ❑ Text version of this message. (1KB)
IJ PROFILE510-04-07 Model (1).pdf (280KB)
OverviewR10-04-07 Model (1).pdf (317KB)
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httn://mnil.favblock.com/cgi-bin/inbox.exe?id=OI 7d738b8f8a848ca7488fd89d4ebb5OOfI ... I 0/26/2007
MID -ATLANTIC
ASS 0CIATE S,INC.
Engineering & Environmental Solutions
409 Rogers View Court !Raleigh /North Camlina /27610
800-486-75M / 919-250- 9918 / 919-250-9950 Facsimile
11'WIV. 1ta10111ine. com
January 11, 2008
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: RESPONSE TO RETURN OF NCG140000 NOI #1166 AND
RE -SUBMITTAL OF NOTICE OF INTENT
CONCRETE SERVICE COMPANY, INC.
WEST MANCHESTER ROAD
SPRING LAKE, NORTH CAROLINA
MID -ATLANTIC PROJECT NO.000R1944.00
Dear Mr. Pickle:
RECEIVED
JAN I r 2008
BY: P.&LY
This letter serves as a response to your December 7, 2007 letter and as a cover letter for the re -
submittal of the Notice of Intent for the above site to be covered under general stormwater permit
NCG140000. Please note that the submittal has been revised to address the comments outlined in
your December 7, 2007 letter. For ease of review, we have addressed each comment below in the
order in which they were presented.
1. Site Plan
a. The property linestproject boundaries have been added to the drawing.
b. The drainage areas have been delineated on the drawing.
c. The locations of outfalls have been noted on the drawing.
d. The limits of the aggregate storage areas have been noted on the drawing.
Drainage from all aggregate storage areas is designed to flow into the pond.
e. There are no industrial activities associated with Drainage Area 2 as this area only
includes the site offices. The only outfall associated with Drainage Area 1 is the
discharge from the pond.
f. All conveyance features are shown on the drawing.
2. Design Notes and Design Details
a. The soils report has been removed from the re -submittal. Although we expect the
basin to provide some infiltration of water, we have demonstrated compliance with
permit limits through other means. The calculations presented in Attachment A
demonstrate discharge compliance with total suspended solids (TSS) limits and a
Fortrans pH adjustment unit (Model 5000-S or .5000-SK) will be used to adjust the
pH in the pond.
b. The pH test result has been removed from the re -submittal.
c. The large basin noted in your letter is actually two basins. The first basin is a
temporary sediment basin to be removed after construction. After construction the
site will use one large pond to settle solids. The attached drawing depicts the
configuration after construction with the temporary sediment basin removed.
Response to Return of NCG 140000 NO/ # 1166
Concrete Service Company, Inc.
West Manchester Road
Spring Lake, North Carolina
January 11, 2008
Page 2
There will be no need to empty the basin as discharges will be within permit limits.
d. The locations of the drum wash out area, truck wash area, aggregate piles, and
plant wash down area have been noted on the drawing. Wastewater generated in
these areas flows into the pond.
e. The correct configuration of the reclaimer system has been noted on the drawing
and details included in Attachment B.
f. If some groundwater leaches into the basin(s) it should not be a problem since our
compliance calculations (Attachment A) are based on a worst case scenario of the
basin being at capacity when the 25 year124 hour storm occurs.
g. The fogging water used to irrigate the aggregate stockpile will be well water.
We appreciate the opportunity to submit this additional information. If you have any questions or
need additional information, please do not hesitate to call us at 250-9918.
Sincerely,
MID- TLANT C ASSOCIATES, INC.
6fig��'
Darin M. McClure, PE
Principal Engineer
Attachment: Notice of Intent
Attachment A — Calculations
Attachment B — Scrommel Reclaimer System
Drawing
cc: Mr. Lanny Clark, Concrete Service Company, Inc.
Mrs. Adriana Hegeman, Crawford Design Company
1944.00/12-28-07/Response to Additional Info RequesbDMM/aso
MID -ATLANTIC
ASSOCIATES INC.
Engineering & Environmental solulions
NOTICE OF INTENT
w
ej�j 4
�� Division of Water Quality / Surface Water Protection
NCDENRNational Pollutant Discharge Elimination System
NCG 140000
NOTICE OF INTENT
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 NO[ 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 M 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 NCG14 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.
1
�r For questions, please contact the DWO Regional Office for your area. (See page 5)
(Please print or type)
1) Mailing address of owner/operator (address to which all_permit correspondence will be mailed):
Name Richard R. Allen Sr.
Street Address P.O. Drawer 1867 _
City Fayetteville State NC ZIP Code 28302
Telephone No. 910 323-8509 Fax: (910) 323-9319
2) Location of facility producing discharge:
Facility Name Concrete Service Company _
Facility Contact Lanny H. Clark,:
Street Address w. Manchester Road
City spring Lake State NC ZIP Code 28390
County Cumberland
Telephone No. (910) 483-0396 Fax: (910) 486-6724
Page 1 of 5
rAs per 15A NCAC 2H .0106
7Unless treatment facilities are designed, constructed, and put n r 'oF
.,.ejnVyE B Ir al to the company who are qualified to
perform such work for their respective companies in accordant a with General Statutes, 69C-25 ( ), plans and specifications must be signed
and sealed by a P.E. JH I h N 1 1 1 2008
SWU-229-091007 Last revised 09/10/07
BY:P�_
NCG140000 N.O.I.
Travel N on NC Hwy 87 (N. Bragg Blvd.) from downtown Spring
3) Physical location information: Lake toward Sanford, NC. Make left turn onto W. Manchester Rd.
Subject propetty is approx. 0.52 miles on left hand side.
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).
(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 35011 ' 24. 36"
Longitude
78059' 41 .64" (deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
® New or Proposed Facility
❑ Existing
6) Standard Industrial Classification:
Date operation is to begin 02/28/08
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 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.)
Read Mix concrete plant, industrial activities include concrete reclaination,
truck wash, stockpile irrigation and plant -wash down.
8) Discharge points / Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? One
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? Little River
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). No
Receiving water classification (if known):
Note: Discharge of process wastewater to receiving waters classified as WS-11 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?
® No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
10) Does this facility have any Non -Discharge permits (ex: recycle permits)?
R] 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?
0 No
® Yes
It yes, please briefly describe: General good housekeeping and a concrete reclaimation
system, stormwater ►pond and vH adjustment unit desictned to treat stormwater.
Page 2 of 5
SWU-229.091007 Last revised 09/07/2007
NCG140000 N.O.I.
12) Does this facility have a Stormwater Pollution Prevention Plan?
❑ No
KI Yes
If yes, when was it implemented? After construction is complete.
13) Are vehicle maintenance activities occurring or planned at this facility?
® 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 n Yes ❑ No
Wetting of raw material stockpiles IRK] Yes ❑ No
Mixing drum cleaning
® Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater. Use of a reclaimation system, stormwater detention pond and pH adjustment
IVAIV_-�l For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH — 6-9 SU, Total
Suspended Solids (TSS) — 30 mg/I, and Settleable Solids (SS) — 5 mill.) [Use separate sheet(s)].
It all these discharges are recycled, please refer to Question 15.
For plants that recycle and/or discharge erocess 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.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?
® No
❑ 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
i � effluent limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/l, and Settleable Solids (SS) — 5 ml/1), 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.
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
® No ❑ 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?
® No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or.more of hazardous waste generated per month) of
hazardous waste?
® No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste: NA
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport 1 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 falsities, 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 NameAf�f Person Signing: Ztl�� r " -
Title: 4*,It)4v1rA�A.,ol1a� - - -
(Signature of
(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
SWU-229-091007 Last revised 09YO712007
-. 4
NCG140000 N.O.I.
Final Checklist
This application will be returned as incomplete unless all of the following items have been included:
❑ Check for $100 made payable to NCDENR.
❑ This completed application and all supporting documentation (including design details and calculations for
treatment systems).
VK3,_ElIf 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
i 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).
❑ 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 lank 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) stormwaterlwastewater treatment structures, (c) location of
stormwaterlwastewater outfalls (corresponding to which drainage areas), (d) runoff conveyance structures,
(e) areas where materials are stored, (1) 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 contact the DWQ Regional Office for your area.
DWO Regional Office Contact Information:
Asheville Office ......
(828) 296-4500
Fayetteville Office ...
(910) 433-3300
Mooresville Office ...
(704) 663-1699
Raleigh Office ........
(919) 791-4200
Washington Office ...(252)
946-6481
Wilmington Office ...
(910) 796-7215
Winston-Salem ......
(336) 771-5000
Central Office .........(919)
733-5083
Page 5 of 5
SWU-229-091007 Last revised 09/07/2007
a
REFERENCES:
1. OVERHILLS, NC AND MANCHESTER, NC DIGITAL RASTER GRAPHIC FILES,
SCALE: 1:24,000
US GEOLOGICAL SURVEY. SCANNED FROM 1:24,000-SCALE USGS TOPOGRAPHIC
MAPS (OVERHILLS, NC, 1957 PHOTOREVISEO 1971, AND MANCHESTER, NC, 1997).
Feet
2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION a �,d�� 2,(}(}�
4,afl�
ATLAS, BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, D.C.
DRAWN Cq$
DATE:
TOPOGRAPHIC SITE MAP
BY: C�Ti
JANUARY 2008
DRAFT
CHECK:
JOB NO:
00OR1944.00
"D-ATLANTIC
CONCRETE SERVICE COMPANY
S S_O_C I A T E S. INC.WEST
—
MANCHESTER ROAD
ENG.
GIS NO:
Engineering & Environmental solutions
SPRING LAKE, NORTH CAROLINA
CHECK:
01G-R1944,00-1
APPROVAL.: IDWG NO:
ATTACHMENT A
CALCULATIONS
MID -ATLANTIC
ASSOCIATES, INC
engineering & Envirnnn2enfal Solutions
P
4e
CSC - Spring take Plant Calculations - Job No. OOOR1944.00
Process Wastewater Generated vs. Water Used at the Site fThroughputfWater Balance)
Average work day
to
hours
Wash water produced
=
2
gaVCY
(Truck and plant washdown)
Capacity of plant
300
CYlday
Wash water per day
= 600 gallons
Plant Washdown - 10 minutes/day at
1 gallon
a 0,133681 cl
30 GPM = 300 gallons per day
Wash water per day
= 80 cf
Truck wash - 30 loads per day with 20 second
wash per load at 30 GPM - 300 gallons per day
Water/cu. Yd.
Total wash water = 600 GPD1300 CYD = 2 gaVCY
Of Concrete
= 25 gallons
Water Use/Day = 7.500 gallons
Water needs exceed amount of wastewater produced each day.
Pond Characteristics
Length from entry to wier (Ft.) 190
Surface Area of Basin 1 when full (Sq. FL) 19497
Analysis below assumes pond is full when the 25-year storm occurs. The 25-year storm veil produce a peak runoff rate into the system. By calculating settling
times based on the peak runoff rate, we are assuming a worst case scenario. Note: Table references below are taken from Erosion and Sediment Control
Planning and Design Manual by the NC Sedimentation Control Commission, the NC Department of Environment and Natural Resources, and the NCI; Agricultural
Extension Service.
Determination of Peak Runoff Rate Using the Rational method
Q=CIA
Given:
Drainage area (acres) 2,15
Maximum slope length (Ft.) 340
Vertical Drop (Ft.) 2
Average Slope (% foot per foot) 0.59%
Location (Table 8,03c) Fayetteville, NC
Find:
Peak runoff rate from 25-year frequency storm
Solution:
(1) Drainage area: 2.15
(2) Determine runoff coefficient. C. 0.951 Plant site consists of concrete surfaces
Note: Tc calculated from "Time of concentration of small drainage basins graph" attached,
C value for concrete surfaces (Table 8,03b)
Te = 2 minutes
Refer to Table 8.03c Inlesity Duration Frequency - Fayettevilte, NC (since Tc<5, use intesity value for 5 min. ARI)
25 year storm with a 5 minute duration is 8.94 incheslhour - This number (8.94 inchesthour) is a conservative
number and will be used for intensity factor, L
Calculata Peek Runoff for Site
Calculate the peak runoff al the drainage area that occurs during a particular design Storm event.
Qp a CiA
Op - peak rate of runofl in cubit feet per second (cfs)
C = coeffcienl of runoff
I - intensity of rainfan in inches per hour
A = drainage area in acres
Coefficient of runoff; C =
Rainfall intensity; i
Drainage Area =
Peak Runoff; Op =
Runoff Volume
Calculate Discharge Characteristics from Pond
Weir Length =
Calculate depth of Flow Over the Discharge Wei
H = [0)(3.1-L)1"0.6867
H = depth of flow over weir in feet
Q = Flow in cfs
L - length of weir
During rain event Qp =
Hp=
0.95
8.94 incheslhour 25 year slorm
2,15 acres
18.26 cts
6J21.00 of (See Hydrograph)
39800.40 gallons
150667.23 liters
Off
Francis formula
18,26 cfs
0.815 ft
'From EBSC manual (Fayetteville)
Calculate Critical Velocity of Particles In Basin i During Peak Flow
Worse case scenario For particles discharging off site occurs during peak flow conditions.
Vc - QplA
Vc - Critical velocity in fllsec
Op - Peak Flow
A = Average surface area of basin
Critical velocity NO = 0.00093655 ft/sec
Retention time of particle (Rp) during peak flow = Average Basin Length at Surface ! Vc - 190'Nc
Retention Time (Rp) = 202872 seconds
Critical sealing velocity (Ve') for particle to settle to weir (rain) - Hp/Rp
Critical sallling velocity (Vc') - 4.0192E-08 ft/sec
Determine which solids will discharge oygr weir
Our analysis unit focus on cement panicles due to their small size. Cement particles are the least
likely to settle and therefore the most likely to discharge from the Bile.
Calculate particle settling velocity (Vp) and compare it to Vc'. If Vc' ? Vp, then the$* solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (ftlsec), Vp = g(pl-p2)d'2118u Stokes Law
g - gravity =
32.2 f /sec'2
d - diameter of
cement particle (a)
1 micron =
3.28084E-OB ft
pl -density of cement
94 ford
p2 = density of water =
62,4 Iblcf
u - viscosity of water
0.0005981 Iblfl-sec
Source: NISTIR 6931 'Analysis of the ASTM Round -Rabin Test on Panicle Size Disiribtulon of Portland Cement: Phase II
Settling
critical
Diameter
size distribution
%e
diameter (ft)
Velocity; Vp
Settling
Discharge over
(microns)
Velocity;VO
Weir (YIN)
-- - -
-
-- --
(Neat)
Inset)
1
4.7
4.7
3.28084E-06
1,0173E-06
4.0192E-06
Y
1.5
2.8
7.3
4.92126E-06
2.289E-06
4.0192E-06
Y
2
4.8
12.1
6.56168E-06
4,0694E-06
4.0192E-OB
N
3
5.6
17.7
9,84252E-06
9.1581E-06
4.0192E-06
N
4
4.6
22.3
1.31234E-05
1.6277E-05
4.0192E-06
N
6
7,8
29.9
1.96850E-05
3.6624E-05
4.0192E-06
N
8
6
35.9
2.62467E-05
6.511E-05
4.0192E-06
N
12
10.5
46,4
3.93701E-05
00001465
4.0192E-06
N
16
8.2
54,6
5.24934E-05
0.00026044
4.0192E-06
N
24
13 8
68.4
7.87402E-05
0.00058599
4.0192E-06
N
32
10.3
78.7
1.04987E-04
0.00104176
4.0192E•06
N
48
12.4
91.1
1.57480E•04
0,00234395
4.0192E-D6
N
64
5.2
96.3
2.09974E-04
0,00416703
4-0192E-06
N
96
2.8
99.1
3.14961E-04
0,00937582
4.0192E-06
N
128
0.4
99.5
4.1994BE-04
0,01666012
4.0192E-08
N
>128
0.5
100
-
4.0192E-06
N
Based on these
calculations, particles 1.5 microns and smaller will
discharge over the weir.
Calculate Total Suspended Solids Concentration
Assume particles 1.5 microns and smaller will discharge
Volume of
Subtotal of
alze distribution
%4
Particle
weighted
Weighted
%Diameter Total
(microns)
(microns)
Volume
Volume
Volume
V
1
4.7
4.7
0.523
0.0246
0.0246
_
0,0001%
1.5
2.6
7.3
1.766
0,0459
0,0705
0.0002%
2
4.8
12.1
4.187
0.2010
0.2716
0.001 %
3
5.6
17.7
14.130
0.7913
1.0626
6.003%
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
16.0788
27.2713
0.068%
12
10.5
46,4
904.320
94,9538
122.2249
0.3D4%
16
8.2
54,6
2143,573
175,7730
297,9979
0.741%
24
13.8
88A
7234.560
998,3893
1296,3672
3.224%
32
10.3
78.7
17148.587
1766.3044
3062,8716
7,616%
48
12.4
91.1
57876,460
7178,6835
10239.3551
25.461%
64
5.2
98,3
137188.693
7133.8121
17373.1672
43.201%
96
2.8
99A
40011,840
12964.3315
30337.4987
75.438%
128
OA
99,5
1097509.547
4390.0382
34727.5369
86.355%
128
0,5
100
10975D9,547
5487,5477
40215.0846
100,000%
40215.0846
Particles 1.5 microns and smaller make up 7.3% of the total particles but 0.0002 % of the total volume.
Since the density of all the particles Is assumed the same, then particlea 1.5 microns and smaller also
represent approximately 0.0002%of the mess.
Estimated amount of cement from reclaimer
I tblday See reclaimer calculations
Estimated amount of cement washed from under plans
40 Iblday
Estimated amount of cement washed off each truck
1 I IbICY
Estimated amount of cement washed off each truck
300 lb/day
Mass of cement discharged to pond 341 Idlday
Mass of cement to discharge = Mass of cement discharged to pond each day x % of mass = 0.0006 pounds
= 271.23 mg
Total Suspended Solids of Discharge (TSS) - Mass of cement (mg) l Volume of Storm Runoff (Liters)
TSS = 271,2349248 1 150667.23
Anticipated TSS (mg/Q = 0.0018 mg1L
Maximum TSS (mglL) - 30 mg1L
Calculate settleable solids discha►ao
Methodology for Seltabie solids measures the volume of settleable solids in an Imhoff cone after 60 minutes.
An Imhoff cone IS approximately 14-inches tall. Results are reported in mVL. The following table calculates
the time for particles to settle 1", 6" and 14".
...
Settling Velocity
1" Settling
a" Settling
14" Setting
Diameter (microns)
(Ns.)
Time
Time (minutes)
Time (minutes)
_
{minutes)
-
_
1
1,01734E-06
1365,21
8191.28
19113.00
1.5
2.28902E-06
606.76
3640.57
8494.67
2
4.06937E-OB
341,30
2047.112
4778.25
3
9.15607E-06
151,69
910,14
2123.67
4
1.62775E-05
85,33
511,96
1194.56
6
3.66243E-05
37.92
227.54
530.92
From calculations above, particles 1,5 microns and smaller will lake longer than 60•minules to settle only 6.
Anticipated Settleablo Solids - 0 M111-
Maximum allowable Settleable Solids = 5 mill.
pN Analysis
A Fortrans pH control system (or equtvalenl) will be installed at the discharge point of pond
CSC -Spring Lake Plant Reelaimer Caleulations -Job No. 19M.00
Process Wastewater Entering Reclainer System
Trucks washed out per day
= 6
Gallonshruck washout
200 gallons
Cement/CY of mix
= 50D pounds
CY of washout per truck
= 1 CYlday
Wash water per day
= 1600 gallons Water discharged into reclaimer per day
t gallon
- 0.133681 cf
Wash water per day
- 214 cf
Cement per day
= 40M pounds Cement discharged into reclaimer per day
Calculate average flow of water entering system, This assume that concrete is continuing to be reclaimed during the 25-year124-hour storm.
Average Bow through velocity
= 30.tx} gpm Hose now velocity.
= 3.74 cis
Surface Area of Reclalmer Pit Area for Settlement Calculations (Worst
Case Scenariol
Basin 1
h
Length of weir x width of basin (12' x 12')
Basin 1
ft
26' x 12'
Basin 3
M58B
ft
26' x 12'
Basin 4
ft
37' x 12'
Basin 5
ft
49' x 12'
Calculate, Discharge Characteristics from Basin 1
Weir Length = 12 tt
Calculate depth of Flow Over the Dlscharae Walr
H = 1043,1'L)]"0.6667 Francis formula
H = depth of now over weir in feet
Q = flow in cfs
L - length of weir
Qp = 3.74 cis
Hp = 0.216 ft
Calculate Critical Velocity of Particles In Basin_? During Peak _F_low
Worse case scenario for particles discharging off site occurs during peak Bow conditions.
Vc - Qp/A
Vc - Critical velocity in ft/sec
Op - Peak Flow
A - Average surface area of basin
Critical velocity (Vc) = 0,02597394 Mac
Retention time of particle (Rp) during peak Bow = Average Basin Length at Surface ! Vc = 12'Nc
Retention Time (Rp) - 462 seconds
Critical settling velocity (Vc') for particle to settle to weir (rain) - Hp,/Rp
Critical settling velocity (Vc') = 0.00040802 fUsec
Determine which solids will dlscharoe over weir
Our analysis will focus on cement particles due to their small size. Cement partiCies are the least
likely 10 settle and therefore the most likely to discharge from the site.
Calculate particle settling velocity (Vp) and compare it to Vc'. !f Vc' > Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling VeEocity (Vp):
Particle Settling Velocity (fUsec), Vp = g(p1-p2)d*211 Bu Stokes Law
g - gravity = 32.2 ftlsec'2
d - diameter of
cement particle (h)
1 micron = 3.28084E-06 If
p1 = density of cement = 94 Ibfcf
p2 = density of water = 62.4 Ib1d
u = viscosity of water = 0.0005981 Ib/fl-sec
t
Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Panicle Size Dlsiffhtuion of Portland Cement: Phase II ----
-------- -
Settling
Critical
Diameter size disMbutlon
Xe
diameter O 11
Veloclty; Vp
Settling
Discharge over
{microns)
(ftlaac)
Velocity; VC
Weir (YIN)
1
4.7
4.7
3.28084E-06
1.0173E-06
4,6B02E-04
Y
1.5
2.6
7.3
4.92128E-06
2,289E-06
4.6802E-04
Y
2
4.8
12.1
6.56168E-06
4.0694E-06
4.6802E-04
Y
3
5.6
17.7
9.84252E-OB
9.1561E-06
4.6802E-04
Y
4
4.6
22.3
1.31234E-05
1.6277E-05
4.6802E-04
Y
6
7.6
29.9
1,96850E-05
3.6624E-05
4,8802E-04
Y .
8
6
35.9.
2.62467E-05
6.511E-05
4.6802E-04
Y
12
10.5
46,4
3.93701E-05
0,0001465
4.6802E-04
Y
16
8.2
54.6
5,24934E-05
0.00026044
4.6802E-04
Y
24
13,8
68,4
7.87402E-05
0,00058599
4.8802E-04
N
32
10,3
78.7
1.04987E-04
0,00104176
4.6802E-04
N
48
12.4
91.1
1.57480E-04
0,D0234395
4.6802E-04
N
64
5.2
96.3
2.09974E-04
0,00416703
4,6602E-04
N
96
2.8
99.1
3.14961E-04
0,00937582
4.6802E-04
N
128
0.4
99.5
4.19948E-04
0,01666812
4.6802E-04
N
>128
0.5
100
-
4.6802E-04
N
Based on these calculations, particles t8 microns
or less will discharge over the
weir.
Calculate Discharge
Characteristics from Basin 2
Weir Length
a
12 ti
Calculate death of Flaw Over the Discharge Weir
H = (Q!(3.1'L)]^0,6667
Francis formula
H = depth of flow over weir in feel
Q =flow in cis
L - length of weir
Qp = 3.74 cis
Hp = 0.218 ft
Calculate Critical Volocl of Particles Flowing Through Basins t R 2
Worse case scenario for particles discharging off site occurs during peak flow conditions.
Vc = Qp1A
Vc = Critical velocity in fVsec
Op - Peak Flow
A - Average surface area of basin
Critical velocity (Vc) - 0,0082023 ftlsec
Retention lime of particle (Rp) during peak flow - Average Basin Length at Surface 1 Vc = 38'Nc
Retention Time (Rp) = 4633 seconds
Critical settling velocity (VC) for particle to settle to weir (rain) = Hp/Rp
Critical settling velocity (VC) = 4.6872E-05 fVsec
Dotarmine which solids will discharge over weir
Our analysis will focus on Cement panicles due 10 their small size. Cement particles are the least
likely to settle and therefore the most likely to discharge from the site.
Calculate particle settling velocity (Vp) and compare it to VC. If Vc' > Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Panicie Settling Velocity (ftlsec), Vp - g(p1-p2)d'211Bu Stokes Law
9 = gravity a 32.2 ttlsec'2
d = diameter of
cement particle (fl)
1 micron - 3.28084E-06 ft
p1 - density of cement 94 ItVcf
p2 - density of water 62.4 Ihlcf
u = viscosity of water a 0.0005981 Iblff-soc
Source: NISTIR 6931 "Analysis of the ASTM Round -Rabin Test on Particle Size Disiribtuion of Portland Cement: Phase 11
.Settling
Critical
Diameter
size dlatributlon
Xc
diameter (h)
Velocity; vp '
Settling
Discharge over
Imlcrons}
(rt/sec)
velocity; Vc,
Weir (YIN)
(fVsec)
1
4.7
4.7
3.28084E-06
1.0173E-06
4.6672E-05
Y
1.5
2.6
7.3
4.92126E-06
2.2139E-013
4.6672E-05
Y
2
4.8
12,1
6.5616BE-06
4.0694E-06
4.6672E-05
Y
3
5,6
17.7
9.84252E-06
9.1581E-06
4.6672E-05
Y
4
4.6
22.3
1.31234E-05
1.6277E-05
4.6672E-05
Y
6
T6
29.9
1.96850E-05
3.6624E-05
4,6672E-05
Y
B
6
35.9
2.62467E-05
6.511E-05
4.6672E-05
N
12
10.5
48.4
3.93701E,05
00001465
4.6672E-05
N
16
8,2
54.6
5,24934E-05
0.00026N4
4.6872E-05
N
24
13,0
68,4
7.87402E-05
0 00058599
4.6672E-05
N
32
10.3
78.7
1.04987E-04
0.00104176
4.6672E-05
N
48
12.4
91.1
1.57480E-04
0.00234395
4.6612E-05
N
64
5,2
96.3
2.09974E-04
0.00416703
4.6672E-05
N
96
2.8
99.1
3.14961E-04
000937582
4.6872E-05
N
128
0.4
99.5
4.19948E-04
0.01B66812
4.6672E-05
N
>128
0.5
100
-
4.6672E-05
N
Based on these calculations, particles 6 microns or less will discharge over the weir of Basin 2,
Calculate Discharge
Characteristics from Basin 3
Weir Length
=
12 ft
Calculate depth of Flow Over the Discherao We[r
H = (QI(3A'L))A0.6667
Francis formula
H - depth of flow over weir in feet
O = flow in cis
I. - length of weir
Qp o 3.74 cis
Hp- 0.216 M
Calculate Critical Veloclty of Particles Flowlna Through Basins 1, 2 R 3
Worse case scenario for particles discharging off site occurs during peak flow conditions.
Vc = Qp1A
Vc = Critical velocity in fVsec
Op - Peak Flow
A = Average surface area of basin
Critical velocity (Vc) = 0,00487011 fVsec
Retention lime of particle (Rp) during peak now -Average Basin Length al Surface 1 Vc = 64'Ne
Retention Time (Rp) = 13141 seconds
Critical setlGng velocity (Vc') for particle to settle to weir (rain) - HpIRp
Critical settling velocity (Vc') - 1.8454E-05 fVsec
Dolormi a which solids will dlscha a over weir
Our analysis will focus on cement particles due to their &malt size. Cement particles are the least
likely to settle and therefore the most likely to discharge from the silo.
Calculate particle settling velocity (Vp) and compare it 10 Vc'. If Vc' > Vp, then those solids will discharge over the weir.
Formula for Calculating Partide Settling Velocity (Vp):
Partide Settling Voloaty lit/sec), Vp . g(pt-p2)d'2118u Stokes Law
9 = gravity = 32.2 tVsec'2
d - diameter of
cement particle (h)
1 micron = 3.28084E-06 it
p1 = density of cement = 94 Ib/cl
p2 = density of water 62.4 Iblcl
u = viscosity of wafer = 0.0005981 Iblfl-sec
Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test an Particle Size Distribtuion of Portland Cement Phase II
SuIttling
Critical
Diameter size distribution
%<
diameter iR) Velocity; Vp
settling
Discharge over
{microns)
Velocity; Vc*
Weir (YIN)
P-11
tNa_ecl
1 4.7
4.7
3.28084E-06 1,0173E-06
1.6454E-05
_
Y
1.5 2.6
7.3
4.92126E-06 2.289E-06
1.6454E-05
Y
2 4.8
12.1
6.56166E-06 4.0694E-06
1.6454E-05
Y
3 5.6
17.7
9.84252E-06 9.1561E-06
1.6454E-05
Y
4 4.6
22.3
1.31234E-05 1.6277E-05
1.6454E-05
Y
6 7.6
29,9
1.96850E-05 3,6624E-05
1.6454E-05
N
8 6
35.9
2.62467E-05 6.511E-05
t.6454E-05
N
12 10.5
46.4
3.93701E-05 0,0001465
1.6454E-05
N
16 8.2
54,6
5.24934E-05 0,00026044
1.6454E-05
N
24 13.8
68,4
7.87402E-05 0,00058599
1,6454E-05
N
32 10.3
78.7
1,04987E-04 0,00104176
1.6454E-05
N
48 12.4
91.1
1,57480E-04 0.00234395
1.6454E-05
N
64 5.2
96.3
2.09974E-04 0.00416703
1.6454E-05
N
96 2.8
99.1
3.14961E-04 0.00937582
1.6454E-05
N
128 0.4
99.5
4.19946E-04 0.01666812
1.6454E-05
N
-128 0.5
100
--
1.6454E-05
N
Based on these calculations, particles 4 microns or less will discharge over the weir of Basin 3.
Calculate Critical Velocity of Particles Flowina Throuuh Basins 1. 2. 3 6 4
Worse case scenario for particles discharging
off site occurs during peak now conditions.
Vc = OpIA
Op 8 Hp are
the same as with
basins t through 3
VC = Critical velocity in fVsec
Op = Peak Flow
A = Average surface area of basin
Critical velocity (Vc) -
3.09E-03
Nsec
Retention lime of partide (Rp) during peak flow = Average
Basin length at Surface I Vc - 101'Nc
Retention Time (Rp) =
32728
seconds
Critical settling velocity (Vc') for particle to seille to weir (rain)
= Hp/Rp
Critical settling velocity (Vc') =
6.6066E-D6
fUsec
Determine which solids will diachertle
over weir
Our analysis will focus on Cement particles due to their small size. Cement particles are the least
likely to settle and therefore the most likely to discharge from the site.
Calculate particle settling velocity (VP)
and compare it to
Vc'. if Vc' > Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (fUsec), Vp =
g(p1-p2)d'2l18u
Stokes Law
9' gravity =
32.2 (Usec'2
d = diameter of
cement particle (II)
1 micron =
3,28084E-06 fl
pl = density of cement =
94 Iblcf
p2 = density of water =
62.4 Ib/cf
u - viscosity of water =
0.0005981 Ibltt-sec
Source: NISTIR 6931 "Analysis of the ASTM
Round -Robin Test on Panicle Size Distnbtuion of
Portland Cement:
Phase il _
Settling
Crmcal
Diameter size distribution
%C
diameter (R) Velocity; Vp
$tinting
Discharge over
(microns)
(fuses)
velocity; We
Weir (YIN)
Nsec
1 43
4.7
3,28084E-06 1.0173E-06
6.6066E-06
Y
1.5 2.6
7.3
4.92126E-06 2.269E-06
6.6066E-06
Y
2 4.8
12.1
6.5616BE-08 4.0694E-06
6.6086E-06
Y
3 5,6
17.7
9.84252E-06 9.1561E-06
6.6066E-06
N
4 4.6
22,3
1.31234E-05 1.6277E-05
6.6066E-06
N
6 7.6
29.9
1.98850E-05 3.6624E-05
6.6086E-06
N
B 6
35.9
2.62467E-05 6.511E-05
6.6066E-06
N
12 10.5
46.4
3.93701E-05 0.0001465
6.6066E-06
N
16 8.2
54,6
5.24934E-05 0.00026044
6,6086E-06
N
24 13.8
68.4
7.87402E-05 0.00058599
6.6068E-06
N
32
10,3
78.7
1,04987E-04
0.00104176
6.6066E-06
48
12.4
91.1
1.57480E-04
0.00234395
6,8066E-06
64
5.2
96.3
2.09974E-04
0.00416703
6.6066E-06
96
2.8
99.1
3.14961E-04
0.00937582
6.6066E-06
128
0.4
99.5
4.19948E-04
0,01666812
6.6066E-06
>128
0.5
100
-
6.6066E-06
Based on these calculations, particles 2 microns or less will discharge over the weir of Basin 4.
Calculate Critical Velocity
of Particles Flowing
Throuoh Basins 1.2.
3.4 ✓R 5
Worse case scenario for partides discharging off sile'occurs during peak flow conditions
Vc - OP1A
Op 8 Hp are the some as with basins 1 through 4
Vc - Critical velocity in it/sec
0p = Peak Flow
A = Average surface area of basin
Critical Velocity (Vc) =
2.08E-03
fusee
Retention time of particle (Rp) during peak
flow G Average Basin Length
at Surface I VC - 150'Nc
Retention Time (Rp) =
72188
seconds
Critical settling velocity (Vc') for -particle to settle to weir (rain) - HplRp
Critical settling velocity (Vc*) -
2.9953E-06
f /soc
Determine which solids will discharge
over will
Our analysis will focus on cement particles due to their small size. Cement particles are the least
likely to settle and therefore the most likely
to discharge from the silo -
Calculate particle settling velocity (Vp)
and compare it to
VC. If Vc' > Vp, then those solids will discharge over the weir.
Formula for Calculating Particle Settling Velocity (Vp):
Particle Settling Velocity (Nsec), Vp =
9(pl-p2)d'2I18u
Stokes Law
g - gravity
32.2
fUsec'2
d - diameter of
cement panicle (h)
1 micron
3.28084E-06
8
pl - density of cement a
94
Ibld
p2 = density of water
62.4
Iblcf
u - viscosity of water a
0.0005981
Iblh-sec
Source: NISTIR 6931 "Analysis of the ASTM Round -Robin Test on Particle Size Distribluion o1
. ---
Ponfand Cement. Phase II
Settling
Critical
Diameter size distribution
%c
diameter (It)
Velocity: VP
Bathing
Discharge over
(microns)
(IVsec)
Velocity;Ve
Weir (YIN)
(fVsec)
1 4.7
4,7
3.28084E- _.
t76
1.0173E-OB
2.9853�-08
Y
1.5 2.6
7.3
4,92126E-06
2.289E-06
2.9953E-06
Y
2 4,8
12.1
6,56168E-06
4.0894E-08
2.9953E-06
N
3 5.6
17.7
9.84252E-06
9.1561E-06
2.9953E-06
N
4 4.6
22.3
1.31234E-05
1.6277E-05
2.9953E-06
N
6 7.6
29.9
1.96850E-05
3.6624E-05
2.9953E-06
N
8 6
35.9
2.62487E-05
6.511E-05
2.9953E-06
N
12 10.5
46.4
3.93701E-05
0,0001465
2.9953E.06
N
16 8.2
54.6
5.24934E-05
0.00026044
2.9953E-06
N
24 13.8
68.4
7.87402E-05
0.00058599
2.9953E-06
N
32 10.3
78.7
1.04987E-04
0.00104176
2.9953E-06
N
48 12.4
91.1
1.57480E-04
0,00234395
2.9953E-06
N
64 5.2
96.3
2.09974E-D4
0,00416703
2.9953E-06
N
96 2.8
99.1
3.14961E-D4
0,00937582
2.9953E-06
N
128 0.4
99,5
4.19948E-04
0.01866812
2.9953E-06
N
>128 0.5
100
2.9953E-06
N
Based on these calculations, particles 1.5 microns or less will discharge from Basin 5.
'
Calculate TotalSuspendedSolids Concentration
Assume particles 1.5 microns and smaller will discharge:
Diameter
Volume of
Weighted
Subtoul of
size distribution
{microns)
%c
Particle
Volume
Weighted%Total
Volume
(microns)Volume
Volume
1 4.7
4.7
0.523
0,0246
0.0246
0.0001 %
1.5 2.6
7.3
1.766
0,0459
0.0705
0.0002%
2 4.8
12A
4.187
0.2010
0.2715
0.001%
3 5.6
17.7
1'4.130
0.7913
1.0828
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
267.047
M0768
27,2713
0.068%
12 10.5
46.4
904.320
94.9536
122.2249
0,304%
16 8.2
54.6
2143.573
175.7730
297.9979
0,741%
24 13.0
68.4
7234.560
998.3693
1296.3672
3,224%
32 10.3
78.7
17148.567
1768 3044
3062.8716
7,616%
48 12.4
91.1
57876.480
7176,6835
10239.3551
25,461%
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%
128 0.5 100 1097509.547 5487.5477 40215,0846 100.000%
40215.0846
Particles 1.5 microns and smaller make up 7.3% of the total particles but 0.0002 %of the total volume.
Since the density of all the particles is assumed the same, then particles 1.5 microns and smaller also
represent approximately 0.0002% of the mass.
Mass of cement washed into reclaimer 4000 Ihlday
Mass of cement to discharge = Mass of cement washed off trucks each day x % of mass = 0,00701 pounds/day
El
iv
0
m
0
ns
c
'o
Q
m
0
E
m
0
E
O
L
CT
Y
H (ft)
enn
Nole,
Use nomograph Tc for natural basins with well-defined channels, for overland
flow on bare earth, and for mowed -grass roadside channels.
For overland flow, grassed surfaces, multiply Tc by 2.
For overland flow, concrete or asphalt surfaces, multiply Tc by 0.4.
For concrete channels, multiply Tc by 0.2.
Figure 8.03a lime of concentration of small drainage basins.
Y-'grin)
200
100
s0
10
5
1
C.
sC.q� - 02-
8.03.4
Hydrograph Plot
Hydratlow Hydrographs by lntelisolve
Hyd. No. 1
CSC Spring Lake Plant
Hydrograph type
= Rational
Storm frequency
= 25 yrs
Drainage area
= 2.150 ac
Intensity
= 8.684 in/hr
OF Curve
= Fayetteville, NCADF
Q (cfs)
18.00
15.00
12.00
•M
. M
3.00
0.00 -k
0
Hyd No. 1
CSC Spring Lake Plant
Hyd. No. 1 -- 25 Yr
5
Thursday, Jan 10 2008, 4:11 PM
Peak discharge = 17.74 cfs
Time interval
= 1 min
Runoff coeff.
= 0.95
Tc by User
= 5.00 min
Asc/Rec limb fact
= 1/1
Hydrograph Volume = 5,321 cuft
Q (Gfs)
18.00
15.00
12.00
M
�
3.00
— 1 0.00
10
Time (min)
A I I AGNMENT B
SCROMMEL RECLAIMER UNIT
MID -ATLANTIC
ASSOC I ATES,1 NC.
Engineering & Envirunmenlal Suluiinns
ix4,
rY
November 1, 2006
SftRU2MM EJ Mf 8 SPECIFICATIONS
Discharge Pan:
Two truck, Right, Left or Rear discharge
Discharge pan capacity:
1.2 Cubic Yard
Washout Stinger:
Dual truck
Primary Screw:
24 inch diameter x 24 feet long
Secondary Screw:
18 inch diameter x 18 feet long
Electrical Box:
480 volt 3-phase with motor protection,
weatherproof, -( 208 volt 3 phase and 240 volt 3
phase are optional ) with Auto Start/Stop loop
detector.
Electric motors:
Primary screw 10 HP, Secondary screw 5 HP
Gearboxes:
Primary screw, size 5, Secondary screw, size 4
Pump:
300+ gallons per minute
Screen:
Harp screen with 3116" slots
Support Legs:
Optional
Complete Pit Drawings:
Size and concept drawings for clarification pits,
drying bunkers, truck ramps, etc.
Field Service and Support:
Factory man will be on -site for initial start-up and to
train your drivers on the operation of the
SCROMMEL.
Time of Delivery:
Normal lead times run 8 -10 weeks. As with any
product, these may vary according to demand.
Firm delivery dates will be given upon receipt of
down payment.
Shipping:
All reclaimers are shipped F. O. B. Salina, Kansas,
and is the responsibility of the customer.
SCROMMEL works with transportation companies
and can assist in this.
Payment:
A 20% deposit is required prior to order acceptance.
Balance is due prior to shipping.
Validity of price quote:
Written quotes are good for 30 days.
Producers using granite or similar stone, are required to purchase abrasion resistant flighting
Specifications are subject to change without notice
Note: Labor and materials for pit construction, plumbing, on -site electrical and assembly are
the responsibility of the purchaser.
F E D C B A
SCR❑MMEE RESOURCE MANAGEMENT, INC.
PIOi DRAVR it
]-900-595-5293 MICK W❑DKE
SCALE 1-1Dyer Vlew
e77s ArtraD Av[. , ra. smx ruse, E i". Ks cs4a]-eus
r�Ul 9ALESMNr
1-765-825-7404 BRAD RYQUIST
DATL
10-04-2007
TITLE
2418 '
STRUCTURAL DETAILS MUST BE DETERMINED BY LICENSED ENGINEER IN ACCORDANCE VITM LOCAL CODES
Cow AwT
COf(CR[T[ S[BV]Cr.-rATE 7TEV]L LE, hC
79'
7 B'
PERR.FT-ER WALL EL -I'
EL 0
A
79'
79,
66'
EL D INNER WALL EL 0
B
EL 0
EL 0
C
79'
7 B' -
66' —
Lol
79
7R'
EL 0 1
E
- 79' .
r
78, .
I-L U
F
EL + I'
WALL
EL 4 1'
k2 WALL
EL{k
ER
12' WALL
EL +1'
WALL
EL +l
WALL
EL + k'
SERQKMEL RESDUREE MANAGEMENT, INC. -ppp-y95- 43 MIEK WODK =
r or rrt nu
.na ..c.•a �. na +,..a v.w-wu r�E�e>y-fms BRAD BYOUISi iO-04-2007
m.�
ningfww xewl.s P.m �[ ptramn�ci O. uu.rsca o+pncry a .cr.�e.acc vlra �pcti m¢s mane +wao-...rnswc.c
I Acre = 43,560 Sq Feet, 7,106 / 43,560 = .1631 of an acre used for the
reclaimer system
1 inch of rain, on 1 acre, assuming no absorption = 27,154 gallons
.1631 x 27,154 = 4,428.81 gallons per inch of rain falling on reclaimer
sy stem
24 hour/ 25 year rain event falls between 6" Cox 7" in your area, I used the
high end 7"
7" x 4,428.81 = 31,001.67 gallons falling on reclaimer system in a 7" rain
event.
7.48 gallons in a cubic foot, 31,001.67 / 7.48 = 4,144.60 cubic feet of
storage required
The 26" of freeboard in the pit system provides 8,649 cubic feet of
storage. The upper 12" of the freeboard in the pit system will hold 4,383
cubic feet. 8,549 - 4383 = 4,166 cubic feet of storage below the 12"
freeboard to hold 4,144.60 cubic feet of rain from a 7" rain event.
Once again, thank you for your patience, we appreciate
your business.
Sincerely,
Brad Byquist
SCROMMEL Reclaimers
Attachments. fl Text version of this message. (1KB)
U PROFILESIO-04-07 Model (1)_pdf (280KB)
OverviewRl0-04-07 Model (1).pdf (317KB)
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htln://mail.favhlnck.com/cLyi-bin/inbox.exe?id=0] 7d738b8f8a848ca7488fd89d4ebb500fl... ] 0/26/2007
�pF �ArF9 p Michael F. Easley, Governor
yy William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Y Coleen H. Sullins, Director
Division of Water Quality
December 7, 2007
Mr. Richard R. Allen Sr.
PO Drawer 1867
Fayetteville, North Carolina 28302
Subject: Return of NCG140000 NOI, #1166
Concrete Service Company — Spring Lake
Cumberland County
Dear Mr. Allen:
On December 5, 2007, the Division of Water Quality, Stormwater Permitting Unit received your
Notice of Intent (NOI) to be covered under North Carolina's General Permit NCG140000, submitted
for your proposed location on West Manchester Road in Spring Lake. Your submittal contained a
check for $100, and three copies of: a transmittal letter from Crawford Design Company, the NOI
application form, a site location map, a site layout drawing, Crawford's design notes and
calculations, and DLR's approval letter for your erosion and sedimentation control plan. The
submittal is significantly deficient, and we are returning it'unprocessed. Please ask your engineer
to make an appointment with me for a face-to-face explanation of the minimum submittal
requirements.
The submittal is deficient in the following particulars.
1. Site Plan. Please consider that as reviewers, we can't determine from the site plan
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 typical items of interest in a
review. Instructions on the required content of the site plan are presented on page 5 of 5
of the NOI that you submitted.
a. We cannot tell from the graphic presentation where the property lines are.
b. The drainage areas are not delineated on the site plan.
c. The location of stormwater and wastewater outfalls are not labeled as such.
d. The limits of the aggregate storage areas are Indistinct, and consequently it is not
clear to us that all drainage from the aggregate storage areas will enter the proposed
large basin.
e. It is not clear that all site stormwater discharge points are identified on the drawing.
f. Also note at the same location in the NOI is the requirement that the site plan must
show runoff conveyance features (like ditches, swales, runoff control berms, and
pipes). We are not confident that the site plan shows the full extent of the features
on the site that may affect runoff flow direction.
2. Design Notes and design details
a. The design notes include a soils investigation report, but in the absence of a design
narrative, it is not clear to us what the purpose of the soils work Is. The submittal
presents the report, but then does not appear to present any design conclusion from
the work. Further, if the work is presented in support of a design concept that
includes infiltration, please note that a single sample is not sufficient to characterize
the infiltration value over the entire base of the proposed holding pond. Further, it
appears that the soil sample was retrieved from an elevation significantly above
�no Caro ina
turaly
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-7058 Customer Service
lntemCt: www.ncwaterqunlity.org Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-9612 1-877-623-6748
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/] 0% Post Consumer Paper
Mr. Richard Allen Sr.
Page 2 of 2
December 7, 2007
proposed base of the basin, calling Into question the applicability of the single
permeability measurement.
b. The design notes include a pH test result, but In the absence of a design narrative, it
is not clear to us what the purpose of the pH testing is. The submittal presents the
pH testing, but then does not appear to present any design conclusion from the
work. Further, it is not clear what fluid the pH measurement pertains to.
c. The design notes conclude that the large basin accommodates the 25-year rainfall
volume, but the weir elevation on the site plan is 1.25' lower than the required
elevation. The design conclusion is not supported by the design calculations.
Further, please note that some means to empty the basin must be included in the
design concept.
d. Typically we see four wastewater sources at a ready -mix site: drum wash out, truck
wash off, aggregate pile drainage, and wash down from the truck loading area. The
design notes address three of these typical sources, but the notes do not address
wash down from the truck loading area. We must understand how you will deal with
wash down flows from under the loading silo.
e. Please note that six different configurations of the recycle system chambers are
presented in the design notes and the site plan. It is not clear to us which is
included in the design. Please limit your re -submittal to the configuration that you
actually wish us to permit.
f. We note that the soils consultant reports a groundwater elevation of 6.5' below
ground surface. From the site plan we see one spot elevation of 171.06'.
Subtracting the measured depth to groundwater, we get a groundwater elevation
potentially as high as 164.56' on the day it was measured. Given that North Carolina
is experiencing the most severe drought in recorded history, with accompanying
groundwater table depression, it is not clear to us how the design of the basin
bottom at 164.50' acknowledges the likely Increase in groundwater elevation, and
the accompanying reduction In available basin volume under more normal conditions.
Please incorporate this consideration in your re -submittal.
g. Please clarify for us the source of the fogging water that will be used to irrigate the
aggregate piles.
Please contact me with any questions or comments.
Sincerely,
Ken Pickle, P.E.
DWQ Stormwater Permitting Unit
(919)733-5083x584
ken.pickleCaDncmail.net
Enclosures: Returned application package
cc letter only: Adrlanna Hegeman, Crawford Design Co, 914 Hay St., Fayetteville, NC 28305
DWQ Fayetteville Regional Office
SPU County Files - Cumberland County
NC®ENR
North Carolina Department of Environment and
Division of Lard Resources
James D. Simons, PG, PE Land Quality Section
Director and State Geologist
August 15, 2007
LETTER OF APPROVAL
Natural Resources
EXPRESS REVIEW OPTION
D. R. Allen & Sons, Inc.
Attn: Richard R. Allen Sr., President
P.O. Drawer 1867
Fayetteville, NC 28302-
RE: Project Name: New Concrete Plant Acres Approved: 3.4
Project ID: Cumbe-2008-018
County: Cumberland Manchester Manchester Road
River Basin: Cape Fear Stream Classification: Other
Submitted By: Crawford Design Company
Date Received by LQS: 8/15/2007
Plan Type. Express
Dear Mr. Allen:
Michael F. Easley, Governor
William G. Rass Jr., Secretary
This office has reviewed the subject erosion and sedimentation control plan. We find the
plan to be acceptable and hereby issue this Letter of Approval. The enclosed Certificate of
Approval must be posted at the job site. This plan approval shall expire three (3) years following
the date of approval, if no Iand-disturbing activity has been undertaken, as is required by Title
15A NCAC 4B .0129.
Title 15A NCAC 4B .0118(a) requires that a copy of the approved erosion control plan be
on file at the job site. Also, this letter gives the notice required by G.S. I I3A-61.1(a) of our right
of periodic inspection to insure compliance with the approved plan.
North Carolina's Sedimentation Pollution Control Act is performance -oriented, requiring
protection of existing natural resources and adjoining properties. If, following the
commencement of this project, the erosion and sedimentation control plan is inadequate to meet
the requirements of the Sedimentation Pollution Control Act of 1973 (North Carolina General
Statute 113A-51 through 66), this office may require revisions to the plan and implementation of
the revisions to insure compliance with the Act.
Fayetteville Regional Office
225 Green Street— Suite 714, Fayetteville, North Carolina 28301 - Phone. 910-433-3300 I FAX: 910-486-0707
f r
Letter of Approval
D. R. Allen & Sons, Inc.
August 15, 2007
Page 2 of 3)
The developer is responsible for obtaining any and all permits and approvals necessary for the
development of this project prior to the commencement of this land disturbing activity. This could
include agencies such as the Division of Water Quality's stormwater regulations, their enforcement
requirements within Section 401 of the Clean Water Act, the Environmental Protection Agency and/or
the U.S. Army Corps of Engineers' jurisdiction of Section 404 of the Clean Water Act, the Division of
Solid Waste Management's landfill regulations, local County or Municipalities' ordinances, or others
that may be required. This approval cannot supersede any other permit or approval; however, in the
case of a Cease and Desist Order from the Corps of Engineers, that Order would only apply to wetland
areas. All upland areas would still have to be in compliance with the N.C. Sedimentation Pollution
Control Act.
If any area on site falls within the jurisdiction of Section 401 or 404 of the Clean Water Act, the
developer is responsible for compliance with the requirements of the Division of Water Quality, the
Corps of Engineers and the Environmental Protection Agency (EPA) respectively. Any erosion control
measures that fall within jurisdictional wetland areas must be approved by the aforementioned agencies
prior to installation. The Land Quality Section must be notified of a relocation of the measures in
question to the transition point between the wetlands and the uplands to assure that the migration of
sediment will not occur. If that relocation presents a problem or contradicts any requirements of either
DWQ, the Corps, or the EPA, it is the responsibility of the developer to inform the Land Quality Section
regional office so that an adequate contingency plan can be made to assure sufficient erosion control
remains on site. Failure to do so will be considered a violation of this approval.
Acceptance and approval of this plan is conditioned upon your compliance with Federal
and State water quality laws, regulations, and rules. In addition, local city or county ordinances
or rules may also apply to this land -disturbing activity, This approval does not supersede any
other permit or approval.
Please be aware that your project will be covered by the enclosed NPDES General
Stormwater Permit NCGO1000 (Construction Activities). You should first become familiar with
all of the requirements for compliance with the enclosed general permit.
Please note that this approval is based in part on the accuracy of the information provided
in the Financial Responsibility Form, which you provided. You are requested to file an amended
form if there is any change in the information included on the form._ In addition, it would be
helpful if you notify this office of the proposed starting date for this project. Please notify us if
you plan to have a preconstruction conference,
z
v5;�.
Letter of Approval
D. R. Allen & Sons, Inc.
August 15, 2007
Page 3 of 3
Your cooperation is appreciated.,
Sincerely,
Sally McKinney, El
Land Quality Section
Enclosures: Certificate of Approval
NT PDES Permit
cc: Crawford Design Company
Thomas Spinks, Building Inspector
Belinda Henson, Division of Water Quality
Land Quality Section - Fayetteville Regional Office File
Energy, Mineral &
Land Resources
ENVIRONMENTAL WAUTY
August 1, 2017
Concrete Service Company Inc
Attn: Richard Allen
PO Drawer 1867
Fayetteville, NC 28302
ROY COOPER
Governor
MICHAEL S. REGAN
Secretary
Subject: NPDES Stormwater Permit Coverage Renewal COC #NCG140375
Dear Permittee:
TRACY DAVIS
Director
For coverage under Stormwater General Permit NCG140000, the Division of Energy,
Mineral, and Land Resources (DEMLR) is forwarding herewith the reissued Certificate of
Coverage (COC). 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 October 15, 2007 (or as
subsequently amended.) A new Certificate of Coverage (COC) is included with this
letter.
You must print a copy of the new NCG140000 General Permit from our website here:
_.. _.... _ 'v' .
e its es . In addition to the full permit, the 2017
print package on the website includes revised Discharge Monitoring Report (DMR) forms,
Annual Discharge Monitoring Report forms, and Qualitative Monitoring Report Forms.
The General Permit authorizes discharges of stormwater and wastewater (if applicable),
and it specifies your obligations with respect to discharge controls, management,
monitoring, and record keeping. Please review the new permit to familiarize yourself with
all changes in the reissued permit. Significant changes to the General Permit are
outlined in the Technical Bulletin, which is also available on the website above. Your
facility has six months from receipt of the permit to update your Stormwater Pollution
Prevention Plan (SPPP) to reflect any new permit requirements.
'/'Nothing Compares.-,-
SState of North Carolina I Environmental Quality I Energy. Mineral and Land Resources
512 N. Salisbury Street 1 1612 Mail Service Center I Raleigh, North Carolina 27699-1612
919 707 9200
How does the new General Permit affect Tier Status?
The first sample period of your permit begins August 1, 2017, Tier 3 actions in Part IV of
your permit are triggered by benchmark exceedances on four occasions beginning on the
effective date of this permit and do not count prior exceedances. Likewise, Tier 2 actions
are triggered by two consecutive benchmark exceedances beginning on the effective date
of this permit and do not count prior exceedances. However, if your facility is already in
Tier 2 (monitoring stormwater discharges monthly) or Tier 3, you must continue monthly
monitoring until relieved through conditions of the permit or by DEMLR staff approval.
When does electronic DMR reporting start?
We are setting.up our database with final permit parameters and the outfalls that
permittees submitted on-line. All NCG14 Permittees will receive notification when our
eDMR system is ready for these permittees to register and begin reporting
monitoring data electronically. If you have any questions about the status, please
contact Bethany Georgoulias at (919) 807-6372 or Robert Patterson at (919) 807-6369. If
you did not submit outfall information already, we have included a form for you to return
to us. (Note: NO FORM IS ATTACHED if we already have your outfall information.)
Your coverage under the General Permit is transferable only through the specific action of
DEMLR. This permit does not affect the legal requirements to obtain other permits which
may be required by the N.C. Department of Environmental Quality (DEQ), nor does it
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 the DEMLR
Stormwater Permitting Program at (919) 707-9220.
cc: Stormwater Program files
Sincerely,
ray vl &4
for Tracy E. Davis, P.E., C.P.M.
�Nothing Compares.,,_ —
State of North Carohna I Environmental Quality I Energy, Mineral and Land Resources
512 N. Salisbury Street 1 1612 Mail Service Center I Raleigh, North Caroltna 27699-1612
919 707 9200
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF ENERGY, MINERAL, AND LAND RESOURCES
STORMWATER AND WASTEWATER DISCHARGES
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,
Concrete Service Company Inc
is hereby authorized to operate approved wastewater treatment system(s) and discharge
stormwater and/or wastewater, as approved in the original permit/application or
subsequent permit modification, from a facility located at:
Concrete Service Company Plant #3
365 W Manchester Rd
Spring Lake
Cumberland County
to receiving waters designated as Tank Creek (McDuffie Cr.) (McFayden Pond), class C
waters in the Cape Fear River Basin, in accordance with the effluent limitations, monitoring
requirements, and other conditions set forth in Parts I, II, III, IV, and V of General Permit
No. NCG140000 as attached.
This Certificate of Coverage (COC) 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.
Twoo 1&dwe
for Tracy E. Davis, P.E.; CPM
Director, Division of Energy, Mineral, and Land Resources
By the Authority of the Environmental Management Commission
PAT MCCRORY
Y; Governor
DONALD R. VAN DER VAART
Environmental Secretary
Quality
March 30, 2016
Concrete Service Company, Inc. - - -
Attn: Richard Allen i
PO Drawer 1867 l
Fayetteville, NC 28302 !
APB 4 2016 �
Subject: Multimedia Compliance Inspection
Concrete Service Company Plant #3
Cumberland County
Dear Mr. Allen:
Department of Environmental Quality staff from the Fayetteville Regional Office conducted a
multimedia compliance inspection of Concrete Service Company Plant #3 on February 12, 2016
for permitted activities administered by the following Divisions:
Division of Air Division of Energy,
Quality (DAQ) Mineral, and Land
Resources (DEMLR)
The results of each applicable inspection area and any associated response actions or necessary
corrective measures are detailed .in the Division specific' areas of the attached report(s). Should
violations be noted in the attached report(s), you may receive separate enforcement related
correspondence in addition to the report(s).
If you have any questions regarding this multimedia inspection or the results of each program
inspection, please contact the Fayetteville Regional Office at (910) 433-3300 and ask to speak with
the appropriate Division staff. Thank you for your cooperation.
encl: Air Quality Inspection Report
Stormwater Inspection Report
cc: (w/attachments)
Trent Allen, FRO
DAQ FRO Files
DEMLR FRO Files
State of North Carolina I Department of Environmental Quality
Fayetteville Regional Office 1 225 Green Street, Suite 714 1 Fayetteville, NC 28301
910-433-3300
Compliance Inspection Report
Permit: NCG140375 Effective: 07/01/11 Expiration: 06/30/16 Owner. Concrete Service Company Inc
SOC: Effective: Expiration: Facility: Concrete Service Company Plant #3
County: Cumberland 365 W Manchester Rd
Region: Fayetteville
Spring Lake NC 28390
Contact Person: Lanny H Clark Title:
Directions to Facility:
2820 feet west from intersection of Highway 87 and Route No. 1451 toward Easterling drive
System Classifications:
Primary ORC: Certification:
Secondary ORC(s):
On -Site Rep rosentative(s):
On -site representative Winnie Jenkins
Related Permits:
Inspection Date: 02/12/2016 ntr� Time: 90 :30AM
Primary Inspector: Mike Lawyer/1x
Secondary Inspector(s):
Exit Time: 11:OOAM
Phone: 910-483-0396
Phone:
910-323-9198 ext 313
Phone- 910-433-330Q.51 2�
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Ready Mix Concrete StormwaterNVastewater Discharge COC
Facility Status: Compliant ❑ Not Compliant
Question Areas:
Storm Water
(See attachment summary)
Page: 1
permit: NCG140375 Owner - Facility: Concrete Service Company Inc
Inspection Date: 0711212016 Inspection Type : Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
Inspection conducted along with staff with the Division of Air Quality, Division of Water Resources and Division of Waste
Management as part of a Multimedia Inspection to determine compliance with both the NCG140000 General Stormwater
Permit and Air Quality Permit 098331G01. A review of the facility's Stormwater Pollution Prevention Plan revealed it
contained all permit -required components including an annual review and update. Semi-annual Qualitative and Analytical
monitoring records were complete and indicated no discharge since the previous inspection in 2014. After the records
review, observations were made of site conditions. Required secondary containment is provided for the admixture tanks.
Facility has a designated washout pit with concrete baffles for receipt of process wastewater associated with
vehicle/equipment cleaning, wafting of raw material stockpiles and/or mixing drum cleanout. In reviewing the site plan in the
file for the facility, it was observed that the washout pit at the facility has a different orientation than the plan. A revised site
plan should be provided for the file. At the time of inspection, process wastewater from the washout pit was flowing along
the western side of the site and entering the facility's stormwater basin located at the back (northern end) of the plant site.
Per Part IV, Section D of the NCG140000 permit, "Authorized process wastewater commingled with stormwater shall be
considered process wastewater." Therefore, based on the conditions observed at the time of inspection, any discharges
from the basin would need to be monitored per the Analytical Monitoring Requirements for Process Wastewater. This
includes quarterly monitoring with applicable effluent limitations along with completion and submittal of the appropriate
monitoring report forms. It was also observed that there was an accumulation of residual concrete within a portion of the
stormwater basin. Be advised that the NCG140000 permit requires the proper operation and maintenance of all facilities and
systems of treatment and control.
Page: 2
r
Permit: NCG140375 Owner • Facility: Concrete Service Company Inc
Inspection Date: 0211212016 Inspection Type : Compliance Evaluation Reason for visit: Routine
Stormwater Pollution Prevention Plan
You No NA NE
Does the site have a Stormwater Pollution Prevention Plan?
❑ ❑ ❑
# Does the Plan include a General location (USGS) map?
■ ❑ ❑ ❑
# Does the Plan include a "Narrative Description of Practices"?
E ❑ ❑ ❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
0 ❑ ❑ ❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
❑ ❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
❑ ❑ ❑
# Does the facility provide all necessary secondary containment?
0 ❑ ❑ ❑
# Does the Plan include a BMP summary?
E ❑ ❑ ❑
# Does the Plan include•a Spill Prevention and Response Plan (SPRP)?
0 ❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
❑ ❑ ❑
# Does the facility provide and document Employee Training?
❑ ❑ ❑
# Does the Plan include a list of Responsible Party(s)?
❑ ❑ ❑
# Is the Plan reviewed and updated annually?
❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented?
0 ❑ ❑ ❑
Comment:
Qualitative Monitoring
Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? E ❑ 110
Comment:
Analytical Monitoring
Yes No NA NE
Has the facility conducted its Analytical monitoring? 0 ❑ ❑ ❑
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ 0 ❑
Comment: Monitorino records from previous insDection in 2014 to present indicate no discharge. See
Inspection Summary regarding monitoring frequency and completion of appropriate monitoring_
forms.
Permit and Outfalls Yap No NA NE
# Is a copy of the Permit and the Certificate of Coverage available at the site? ❑ ❑ ❑
# Were all outfalls observed during the inspection? ❑ ❑ ❑
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ❑ 0 ❑
# Has the facility evaluated all illicit (non stormwater) discharges? ■ ❑ ❑ ❑
Comment:
Page: 3
':i' . , ,'
NORTH CAROLINA DIVISION OF
AIR QUALITY
Inspection Report
Date: 02/23/2016
Facility Data
Concrete Services Company, Inc. Plant #3
365 Manchester Road
Spring Lake, NC 28390
Lat: 35d 11.4102m Long: 78d 59.6812m
SIC: 3273 / Ready -Mixed Concrete
NAICS: 32732 / Ready -Mix Concrete Manufacturing
Facility Contact
Winnie Jenkins
HR/Safety Director
(910) 237-1791
Comments:
Contact Data
Authorized Contact
Richard Allen, Jr.
President
(910)323-9198
Inspector's Signature:
Date of Signature:
Fayetteville Regional Office
Concrete Services Company, Inc. Plant #3
NC Facility ID 2600227
County/FIPS: Cumberland/051
Permit Data
Permit 09833 / G01
Issued 4/27/2012
Expires 3/31/2017
Classification Small
Permit Status Active
Current Permit Application(s) None
Technical Contact I SIP
Winnie Jenkins
HR/Safety Director
(910)237-1791
Program Applicability
Compliance Data
Inspection Date 02/12/2016
Inspector's Name Heather Carter
Operating Status Operating
Compliance Code Compliance - inspection
Action Code FCE
On -Site Inspection Result Compliance
j Total Actual emissions in TONSIYEAR: V
TSP
S02
NOX
VOC
CO
PM10
*HAP
2011
1.37
---
---
---
---
0.6250
0.3770
HAP Emitted
Five Year Violation History:
None
Performed Stack Tests since last FCE:
None
1) Facility Location & Directions:
Concrete Services Company, Inc: Plant #3 is located at 365 West Manchester Rd. From FRO, take Bragg
Blvd. (Highway 87 North) approx. 10 miles to Spring Lake, NC. Stay on Highway 87 North for about 3
miles and turn left onto West Manchester Rd. The•facility is approx. 1 mile on the left.
2) Safety Considerations:
All standard FRO safety gear is required. Watch for moving mixer trucks and sand and aggregate trucks.
Watch for sand and small rocks falling off of elevated conveyor belts.
3) Facility and Process Description:
Concrete Services Company, Inc. Plant #3 is a truck mix concrete batch plant. The facility consists of a
concrete batch plant and a massive aggregate handling and storage system. This concrete batch plant
consist of a cement silo, a flyash silo, three aggregate storage bins, an aggregate mixing conveyor, a
weight hopper, and a truck load -out operation. The weigh hopper, the cement silo, the fly ash silo and the
truck load out are all controlled by a single, central bag house. The aggregate storage and handling
system is three storage silos, a loading pit and two massive conveyors, one to move aggregate from the
incoming pit into one of three silos and a second conveyor to transport the aggregate to the concrete batch
plant. This facility is very high tech and can be operated by one person, unless the aggregate silos are
empty.
4) Ectuipment List:
Permitted
One Concrete batch plant with fabric filter air pollution control system(s) installed on all sources:
1. One (1) cement mixing weigh hopper and loading operation;
2. Silos for cement and fly ash storage;
Insignificant:
lES-1 Sand & Aggregate Handling
5) Ins ection Summa
On 12 February 2016, I, Heather Carter, DAQ FRO, arrived at the facility to perform a multimedia
inspection training with Mitchell Revels, Mike Lawyer Trent Allen, Tony Honeycutt, Andrew
Hammonds, Mark Brantley, and Melissa Joyner, all of the FRO DEQ. We met with Winnie Jenkins,
HR/Safety Director, who had agreed to host us for the training inspection. Ms. Jenkins reviewed the
FACFINDER and identified no changes other than updating her invoice contact phone number. She
provided a copy of the air permit, I/M records, and monthly production records. She stated there had
been no changes since the last inspection and none were expected in the near future. She stated there
have been no complaints from area residents. The plant was not operating due to the inclement weather,
but she arranged for a cement truck to unload into their silo so that we could observe it during the training
inspection.
Throughputs:
Operating hours
Monday through Saturday; 12 hrs/day.
Employees
8 total; 5 per 12 hr shift (when business demands it)
Production, cu yds
2015: 32,823;
2014: 32,578;
2013: 54,738;
2012: 81,198;
2011: 67,912;
2010: 70,818
We went outside to observe the truck unloading cement. He was unloading at 10-13 psig. We then
positioned ourselves to observe bag house exhaust. 1 observed 0% opacity at the exhaust, and there was
no evidence of particulate build up on the equipment or ductwork. However, the truck top gasket/seat
was letting small amounts of particulate out into the atmosphere. The operator stated that this was not
normal, as did Ms. Jenkins, and that apparently the gasket/seal needed to be replaced. He further stated
that this is why you have an operator standby with the truck to observe anything like this that might
occur. There were no concrete trucks being loading this day due to inclement weather. The entire
grounds are concreted, which helps prevents fugitive dust emissions, and appeared clean -and well
maintained.
c '•3
6) Permit Stipulations:
_ A.2. 2D .0202, Permit Renewal and Emission Inventory Requirement — Facility shall submit permit
renewal application and El at least 90 days prior to permit expiration.
APPEARED IN COMPLIANCE — Facility submitted renewal app and CY 2011 EI on 3/26/12,
:y well before the due date of 6/2/12. The next permit renewal application and EI (for CY 2015) is due
January 2017.
A.3. 2D .0515 Particulate Control Requirement — Particulate matter emissions shall not exceed
allowable emission rates; calculated hourly emission limit based on potential.
APPEARED IN COMPLIANCE — Compliance was determined during the most recent permit
review based on operating the source as described in the permit conditions. No changes have been
made to operations since that determination.
AA. 2D .0521, Control of Visual Emissions — Visible emissions from the facility, manufactured after 1
July 1971 shall not exceed 20% opacity.
APPEARED IN COMPLIANCE — While the cement silo was being loaded 1 observed 0% opacity
from the central dust collector exhaust. There were no trucks being loaded with concrete during the
inspection. I observed a clean well maintained plant, with no particulate buildup on equipment,
ductwork, or surrounding areas.
A.S. 2D_.0535, Notification Requirement — The facility is required to notify DAQ if excess emissions
occur for more than a 4-hour period caused by a breakdown or other abnormal condition.
r APPEARED IN COMPLIANCE -- Ms. Jenkins stated that they did not have any periods of excess
emissions during the past year.
A. 6.21) .0540 Fugitive Dust Control Requirement - The, Permittee shall not cause or allow fugitive
dust emissions to cause or contribute to substantive complaints or excess visible emissions beyond the
property boundary.
APPEARED IN COMPLIANCE- No fugitive dust was observed at the facility boundaries. The
facility property is fully paved. Ms. Jenkins stated that the facility has not received any complaints.
A.7. 2D .0611 Fabric Filter Requirement — The Permittee shall record bag -filter inspections and
maintenance in a logbook and conduct at least one internal inspection of the bag -filter each year.
APPEARED IN COMPLIANCE —11M log indicated last annual inspection was on 21 January
2016. The log also indicates weekly general maintenance checks as well as monthly checks. Bags
were replaced on 21 September 2015.
-` A.B. 2D .1104, Toxic Air Pollutants Requirements —The maximum concrete production is a dependent
on the distance from weigh hopper to the closest property line. Requirements: the closest point of a
property boundary to the weigh hopper must be marked; the Permittee shall record concrete
production each month and annually; an annual report of monthly and annual concrete production and
distance to closest property line shall be submitted by 1 March for the previous year.
APPEARED IN COMPLIANCE — The most recent annual report was received on time. The
` closest property line is a designated red -colored stake at Manchester Road with a distance previously
measured to the weigh hopper reported as 130 ft; maximum annual production limit is 150,000 cu yds
and 2015 production was 32,823 cu. yds.
NOTE: During the inspection, Ms. Jenkins stated that the closest property line is located in woods to,
the left of the facility (if you are facing the facility), and it measures 202 ft to the weigh. hopper. Next
inspector should verify which property line is closer and:its distance.
A.9. 20 .0310,,General Permit - Facility must: 1) only operate permitted emission sources; 2) be located
in approved county; 3 not exceed max hour] throughput of 138; d3/hour; 4) not process more
PP tY' } Y Pip . Y.
concrete during any calendar year greater than the max production,rate list in permit table.
APPEARED IN COMPLIANCE.— Facility operates only the permitted emission sources in
Cumberland Co with a minimum distance to the property line measured as 130 ft. Current
production rate is 65-70 cu yds/hr.. Ms. Jenkins asked the operator who stated that max production
rate is approx. 152 cu yds, and sprinesummerlfall .normal is 100 cu yds/hr. '
A.10 20..0711 Toxic Air Pollution Emissions — The Permittee shall limit toxic air pollutant (TAPs) :r
emissions to less than the TPERs.`
APPEARED IN COMPLUNCE — The facility annual production rate is far less than. it maximum
s.;
annual production rate limit thus emissions will be less than the TPERs. s
7) Non- compliance History_Since 2010:
None .
;'•5 `,,
8) 112R Status:
The facility does not use or store applicable chemical compounds in quantities requiring a written risk
•,ah
management plan.
9) Compliance Statement:
On 12 February 2016, Concrete Services Company, Inc.- Plant #3 appeared to be operating in compliance
with their current air permit.
Pink Sheet Items:
None
rcif M
North Carolina Department of Environment and Natural Resources
Pat McCrory
Governor
September 2, 2014
Fay Block Materials Incorporated
Attn: Winnie Jenkins, MESH
130 Builders Boulevard
Fayetteville, NC 28301
John E. Skvarla, III
Secretary
Subject: :COMPLIANCE EVALUATION INSPECTION
Fay Block Materials Incoporated
Concrete Service Company Plant, Certificate of Coverage-NCG140375
NPDES Stormwater General Permit- NCG140000
Cumberland County
Dear Ms. Jenkins:
On August 28, 2014, a site inspection was conducted for the Concrete Service Company Plant facility
located at Manchester Road, Cumberland, North Carolina. A copy of the Compliance Inspection Report is
enclosed for your review. You were also present during the inspection and your time and assistance is
greatly appreciated. Permit coverage authorizes the discharge of stormwater from the facility to receiving
waters designated as an unnamed Tributary to Tank Creek, Class C Waters in the Cape Fear River Basin.
The site visit and file review revealed that the subject facility is covered by NPDES Stormwater General
Perm it-NCG1 40000, Certificate of Coverage-NCG140375.
As a result of the inspection, the facility was found to be in compliance with the conditions of the NCG140000
permit. Please refer to the enclosed Compliance Inspection Report for additional comments and
observations made during the inspection.
Please be advised that violations of the NPDES Stormwater General Permit are subject to a civic
penalty assessment of up to $25,000 per day for each violation. If you or your staff has any questions,
comments, or needs assistance with understanding any aspect of your permit, please contact me at (910)
433-3300 or by e-mail at diane.adams@ncdenr.gov.
Sincerely,
C. Diane Adams
Sr. Environmental Specialist
Enclosure
cc: FRO - Land Quality Section, Stormwater Files-NCG140375
Division of Energy, Mineral, and Land Resources
Land Quality Section
Fayetteville Regional Office, 225 Green Street -- Suite 714, Fayetteville, Forth Carolina 28301
Phone: 910-433-33001 FAX: 910-486-07071 Internet: http://Mrtal.ncdenr,.org/webllrl
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycled 110% Post Consumer Paper
Permit: NCO140375
SOC:
County: Cumberland
Region: Fayetteville
Comipfflance Inspection Re ort
Effective: 07/01/11 Expiration: 06/30/16 ' Owner : Concrete Service Company Inc
Effective: Expiration: Facility: Concrete Service Company Plant
365 W Manchester Rd
Contact Person: Lanny H Clark Title:
Directions to Facility:
2820 feet west from intersection of Highway 87 and Route No. 1451 toward Easterling drive
System Classifications:
Primary ORC: Certification:
Secondary ORC(s):
On -Site Reprasentative(s):
Related Permits:
Spring Lake NC 28390
Phone: 910-483-0396
Phone:
Inspection flats: 08/28/2014 Entry Time: 01:OOPM Exit Time: 02:OOPM
Primary Inspector: Carolyn D Adams Phone:
Secondary Inspector(s):
Reason for Inspection: Routine Inspection Type: Compliance Evaluation
Permit Inspection Type: Ready Mix Concrete StormwaterlWastewater Discharge COC
Facility Status: Compliant Not Compliant
Question Areas:
0 Storm Water
(See attachment summary)
Page: 1
Penult: NCO140375 Owner - Facility: Concrete Service Company Inc
Inspection Data: OB12812014 inspection Type. Compliance Evaluation Reason for Visit Routine
Inspection Summary:
Page: 2
Pormit: NGG140375 Owner - Facility: Concrete Service Company Inc
Inspection Date: 08/28/2014 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Stormwater Pollution prevention Plan
Does the site have a Stormwater Pollution Prevention Plan?
❑ ❑ ❑
# Does the Plan Include a General Location (USGS) map?
❑ ❑ ❑
Al Does the Plan include a 'Narrative Description of Practices'?
❑ ❑ ❑
# Does the Plan Include a detailed site map including outfall locations and drainage areas?
❑ ❑ ❑
# Does the Plan Include a list of significant spills occurring during the past 3 years?
0 ❑ ❑ ❑
# Has the facility evaluated feasible alternatives to current practices?
0 ❑ ❑ ❑
# Does the facility provide all necessary secondary containment?
M ❑ ❑ ❑
Al Does the Plan include a BMP summary?
0 ❑ ❑ ❑
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
0 ❑ ❑ ❑
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
0 ❑ ❑ ❑
# Does the facility provide and document Employee Training?
❑ ❑
# Does the Plan Include a list of Responsible Party(s)?
�, ❑ ❑ ❑
# Is the Plan reviewed and updated annually?
M ❑ ❑ ❑
# Does the Plan include a Stormwater Facility Inspection Program?
❑ ❑ ❑
Has the Stormwater Pollution Prevention Plan been implemented?
❑ ❑ ❑
Comment:
Oualltatlye Monitorin
'Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? M ❑ ❑ ❑
Comment:
Analytical Monitorina Yea No NA NE
Has the facility conducted its Analytical monitoring? ❑ ❑ ❑
# Has the facility conducted Its Analytical monitoring from Vehicle Maintenance areas? ❑ ❑ ❑
Comment:
Permit and Outfalls Yes No NA NE
# is a copy of the Permit and the Certificate of Coverage available at the site? 0 ❑ ❑ ❑
# Were all outfalls observed during the inspection? ❑ ❑ ❑ .
# If the facility has representative outfall status, is it property documented by the Division? ❑ ❑ ❑
# Has the facility evaluated all Illicit (non sormwater) discharges? ■ ❑ ❑ ❑
Comment:
Page: 3
fi
NCDENR
North Carolina Department of Environment and Natural Resources
Beverly Eaves Perdue
Governor
Richard Allen
Concrete Service Company Inc
' PO Drawer 1867
Fayetteville, NC 28302
Dear Permittee:
Division of Water Quality
Caleen H. Sullins
Director
August 1, 2011
Dee Freeman
Secretary
Subject: NPDES Stormwater Permit Coverage Renewal
Concrete Service Company Plant
COC Number NCG140375
Cumberland County
In response to your renewal application for continued coverage under stormwater General Permit NCG140000
the Division of Water Quality (DWQ) is forwarding herewith the reissued 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 October 15, 2007 (or
as subsequently amended).
The following information is included with your permit package:
• A new Certificate of Coverage
• A copy of General Permit NCG140000
• A copy of the Technical Bulletin for the General Permit
• Two copies of the Discharge Monitoring Report (DMR) Form for Stormwater
• Two copies of the DMR Form for Wastewater
• Two copies of the Qualitative Monitoring Report Form
The General Permit authorizes discharges of stormwater and/or wastewater, and -it specifies your obligations with
respect to discharge controls, management, monitoring, and record keeping. Please review the new permit to
familiarize yourself with all the changes in the reissued permit. If your Certificate of Coverage (COC) restricts
authorization to discharge stormwater only (or other limited terms), you must contact the Stormwater Permitting
Unit if you would like to request a modification to your COC.
The first sample period of your permit begins July 1, 2011. However, because of the delayed mail -out of permit
packages, your facility is expected to attempt to sample during the first sampling period, and must comply with
sampling requirements beginning during the second sampling period. Your facility must sample a representative
storm event between January 1 and July 30, 2012 (for stormwatersampling), and/or sample wastewater between
October 1, 2011 and December 31, 2011 (or, if applicable, report "No Flow", as outlined in Part V, Section E).
Additionally, your facility has 6 months from the time of receipt of the permit to update SPPP to current standards.
The more significant changes in the General Permit since your last Certificate of Coverage include the following
(please note the names and numbers of sections have been changed from.the previous permit revision):
Part II:
• Authorization to Construct (ATC) language was added to the permit and adapted to fit NCG140000.
Part Ill:
• The Stormwater Pollution Prevention Plan (SPPP) section has been updated to the most current
language of our permits. Some additional conditions specific to this industry have been added to the
SPPP language.
Part IV:
• Sections A & B: Revised provisions require stormwater discharges be sampled twice per year (instead of
annually), and sampling results shall be compared to new benchmark values. (The previous cut-off
concentrations have been removed).
• Sections A & B: Revised provisions require the permittee to execute Tier One, Two & Three response
actions: Tier One requirements for a first benchmark exceedence, and/or Tier Two response for a second
consecutive benchmark exceedence, if applicable. Tier Two requires that the permittee institute monthly
monitoring (reported to the appropriate Regional Offices) instead of twice -per -year monitoring. Monthly
monitoring shall be done until three consecutive monitoring events show no benchmark exceedences.
• Sections A & B: This permit now contains a provision that four exceedences of any benchmark will trigger
increased DWQ involvement in the permittee's stormwater management and control actions (Tier Three).
DWQ may direct the permittee to apply for an individual permit, institute specific monitoring, or may direct
the implementation or installation of specific stormwater control measures.
• Sections A & B: Failure to perform analytical stormwater monitoring requires that the permittee begin a
monthly sampling scheme for both industrial stormwater discharges and/or stormwater discharges from
VMA areas (where applicable). After 6 months of monthly sampling, the permittee may return to semi-
annual sampling, unless otherwise specified by DWQ.
• Sections A & B: A lower TSS benchmark of 50 mg/l for HQW, ORW, PNA and Tr Waters was added to
this permit for these more sensitive waters.
• Section B: The monitoring parameter Oil & Grease has been replaced by the parameter Total Petroleum
Hydrocarbons.
• Sections A, B & C: Inability to sample due to adverse weather must be reported in the SPPP.
• Sections A, B & C: The terminology "Representative Storm Event" has been replaced by "Measurable
Storm Event" in response to comments from industry groups. A measurable storm event is a storm event
that results in an actual discharge from the permitted site outfall. The previous measurable storm event
must have been at least 72 hours prior, unless the permittee is able to document that a shorter interval is
representative for local storm events during the sampling period, and obtains written approval from the
local DWQ Regional Office.
• Section C: Qualitative monitoring must now be conducted semi-annually and is tied to the same
measurable storm event as the analytical monitoring.
• Section C: If the permittee fails to respond effectively to problems identified by qualitative monitoring, the
permittee may be required by DWQ to perform corrective action.
• Section D: This section has now been consolidated to one section with one set of combined tables for all
types of authorized wastewater discharges.
• Section D: The wastewater analytical monitoring schedule has been set to quarterly.
• Section D: TSS limits have been revised for PNA, Trout and HQW waters per rule requirements in 15A
NCAC 0213 .0224.
• Section D: 7010-based flow limits have been set for PNA waters per regulations in 15A NCAC 02B.
• Section D: TPH monitoring requirements have been added to wastewater monitoring when stormwater
runoff from VMA areas commingles with wastewater.
• Section D: This wording in the permit has been removed: "For facilities which route stormwater and all
process wastewater to a recycle system, no analytical monitoring of process wastewater discharges is
required if that recycle system discharges as a result of a 10-year 24-hour (or larger) precipitation event."
Part V:
• Section A: For existing facilities previously permitted and applying for renewal under this General Permit:
New elements of the Stormwater Pollution Prevention Plan for this permit renewal shall be developed and
implemented within 6 months of the effective date of the initial Certificate of Coverage issued pursuant to
this General Permit and updated thereafter on an annual basis.
Your coverage under the General Permit is transferable only through the specific action of DWQ. This permit does
not affect the legal requirements to obtain other permits which may be required by DENR, nor does it 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
these members of the Stormwater Permitting Unit: Jennifer Jones (919) 807-6379, Ken Pickle (919) 807-6376, or
Bethany Georgoulias (919) 807-6372.
Sincerely,
for Coleen H. Sullins
cc: DWQ Central Files
Stormwater Permitting Unit Files
Fayetteville Regional Office
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER DUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140375
4f61;UVA►►►IT11119:4.Z1i 901:ft9.I�I�1��Y►�►L>`��A►,►11���.
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,
Concrete Service Company Inc
is hereby authorized to discharge stormwater and/or wastewater from a facility located at and/or
operate an approved wastewater treatment system located at:
Concrete Service Company Plant
365 W Manchester Rd
Spring Lake
Cumberland County
to receiving waters designated as Tank Creek (McDuffie Cr.) (McFayden Pond), a class C waterbody in
the Cape Fear River Basin in accordance with the effluent limitations, monitoring requirements, and
other conditions set forth in Parts I, II, III, IV, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall become effective August 1, 2011.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 1 st day of August, 2011.
for Coleen H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission
4,4
A
AAA
NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins Dee Freeman
Governor Director Secretary
March 10, 2011
Winnie Jenkins, MESH
Fay Block Materials Incorporated
130 Builders Boulevard
Fayetteville, NC 28302
SUBJECT: Compliance Evaluation Inspection
Concrete Service Company, Inc.
NPDES Stormwater General Permit NCG].40000, COC No. NCG140375
Cumberland County
Dear Ms. Jenkins:
Enclosed please find a copy of the Compliance Evaluation inspection report for the inspection
conducted January 25, 2011 for the subject facility. Your time and willingness to conduct a
thorough tour of the subject facility is greatly appreciated.
The inspection and file review revealed that the NPDES Stormwater General Permit and
associated Certificate of Coverage (COC) authorize discharges of wastewater and Stormwater to
an Unnamed Tributary to Tank Creek, Class "C" Waters in the Cape Fear River Basin.
The following observations were noted during the inspection.
-The site was found to be very neat and well maintained,
-All records were present and very neat and organized,
-No spills were recorded for site,
-SPPP plan was developed by outside consultant,
-All Stormwater on the site is directed to a stormwater basin at the rear of the property.
Ms. Jenkins stated that there has never been a discharge from the site to surface waters.
Observations made at the time of the inspection revealed no indication that there had ever
been a discharge from the site.
225 Green 5t., Suite 714, Fayetteville, NC 28301-5043
Phone: 910-433-33001 FAX: 910-486-0707
Internet: www.npwatorguality.org
One
NoithCaroliila
naturally
An Equa! Opportunity I Omialive Action Employer- 50% Recycled 1 f 0% Post Consumer Paper
Ms. Jenkins
March 10, 2011
Page 2 of 2
f you have questions or comments pertaining to this report please do not hesitate to contact me
at (910) 433-3300.
Sincerely,
Paul E. Rawls
Environmental Program Consultant
PER/per
Enclosure: Tnspoetion Report
cc: FRO Files, Mike Lawyer
DWQ WBS Compliance & Permits Unit, Niki Maher
DWQ Central Files
P
Permit: NCG140375
SOC:
County: Cumberland
Region: Fayetteville
Compliance Inspection Report
Effective: 08/01/09 Expiration: 06/30/11
Effective: Expiration:
Owner: Concrete Service Company Inc
Facility: Concrete Service Company Plant
W Manchester Rd
Spring Lake NC 228390 ALRe
Contact Person: mark Title: Phone: 94&4&3-6396-
Directions to Facility:
2820 feet west from intersection of Highway 87 and Route No. 1451 toward Easterling drive
System Classifications:
Primary ORC: Certification:
Secondary ORC(s):
On -Site Representative(s):
Related Permits:
Phone:
Inspection Date: 01/25/2011 Entry Time: 08:00 AM Exit Time: 03:00 PM
Primary Inspector: Paul E lkawl Phone: r
Secondary Inspectors): lv,� 9r0.433.33Q
4�1GtO«'. Mike Lawyer Phone: 910-433-3300 Ext.172�
Reason for Inspection: Routine Inspection Type: Compliance Evaluation 33Z_5�
Permit Inspection Type: COG y Mix Concrete Stormwater/Wa stewa ter Discharge
Facility Status: ■ Compliant ❑ Not Compliant
Question Areas:
■ Storm Water
(See attachment summary)
Page: 1
V
Permit: NCG140375 Owner - Facility: Concrete Service Company Inc
Inspection Date: 01/2512011 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Inspection Summary:
The inspection and file review revealed that the NPDES Stormwater General Permit and associated Certificate of
Coverage (COC) authorize discharges of wastewater and stormwater to an Unnamed Tributary to Tank Creek, Class "C
Waters in the Cape Fear River Basin.
The following observations were noted during the inspection:
-The site was found to be very neat and well maintained,
-All records were present and very neat and organized,
-No spills were recorded for site,
-SPPP plan was developed by outside consultant,
-All stormwater on the site is directed to a stormwater basin at the rear of the property,
Ms. Jenkins stated that there has never been a discharge from the site to surface waters.
Observations made at the time of the inspection revealed no indication that there had ever
been a discharge from the site.
Page: 2
;4
Permit: NCG140375 Owner - Facility: Concrete Service Company Inc
Inspection Date: 01l2512011 Inspection Type: Compliance Evaluation
Reason for Visit: Routine
Stormwater Pollution Prevention Plan
Yes
No
NA
NE
Does the site have a Stormwater Pollution Prevention Plan?
■
n
n
n
# Does the Plan include a General Location (USGS) map?
■
n
n
n
# Does the Plan include a "Narrative Description of Practices"?
■
n
Cl
❑
# Does the Plan include a detailed site map including outfall locations and drainage areas?
■
n
❑
❑
# Does the Plan include a list of significant spills occurring during the past 3 years?
n
n
■
n
# Has the facility evaluated feasible alternatives to current practices?
■
n
n
n
# Does the facility provide all necessary secondary containment?
■
n
❑
❑
# Does the Plan include a BMP summary?
■
n
n
n
# Does the Plan include a Spill Prevention and Response Plan (SPRP)?
■
n
n
Cl
# Does the Plan include a Preventative Maintenance and Good Housekeeping Plan?
■
❑
❑
❑
# Does the facility provide and document Employee Training?
■
n
n
n
# Does the Plan include a list of Responsible Party(s)?
■
n
n
0
# Is the Plan reviewed and updated annually?
■
n
n
n
# Does the Plan include a Stormwater Facility Inspection Program?
■
n
n
❑
Has the Stormwater Pollution Prevention Plan been implemented?
■
n
n
n
Comment: Records were neat and well maintained.
Qualitative Monitoring Yes No NA NE
Has the facility conducted its Qualitative Monitoring semi-annually? ■ ❑ ❑ ❑
Comment:
Analytical Monitoring Yes No NA NE
Has the facility conducted its Analytical monitoring? ❑ n ■
# Has the facility conducted its Analytical monitoring from Vehicle Maintenance areas? n ❑ ■ n
Comment: -Ail Stormwater on the site is directed to a stormwater basin at the rear of
the property.
Ms. Jenkins stated that there has never been a discharge from the site to surface
waters.
Observations made at the time of the inspection revealed no indication that there had
ever
been a discharge from the site,
Page: 3
Permit: NCG140375 Owner • Facility: Concrete Service Company Inc
Inspection Date: 01/25/2011 Inspection Type: Compliance Evaluation Reason for Visit: Routine
Permit and Outfalls Yes No NA NE
# Is a copy of the Perrnit and the Certificate of Coverage available at the site? ■ n ❑ n
# Were all outfalls observed during the inspection?
■pnn
# If the facility has representative outfall status, is it properly documented by the Division? ❑ ■ ❑
# Has the facility evaluated all illicit (non stormwater) discharges?
Comment:
■nnn
Page: 4
��A
NCDEEIR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue
Governor
Mr. Lanny Clark, General Manager
Concrete Service Company, Inc.
130 Builders Boulevard
Fayetteville, North Carolina 28301
Dear Mr. Clark:
Coleen H. Sullins
Director
January 13, 2010
Dee Freeman
Secretary
®EN lid—FR®
JAN 19 2010
DV1!0
Subject: Concrete Service Company, Inc.
Real and Personal Property
Fayetteville, North Carolina
Cumberland County
As per your request, the staff of the Division of Water Quality has completed the review of the
Tax Certification Request for real and personal property received December 2, 2009.
Based on our review of the materials submitted, none of the facilities operate under a Division of
Water Quality wastewater permit. Therefore, the facilities do not meet the requirements of G.S. 105-
275(8)3.
If you have questions please contact me at mark.hubbard@ncdenr.gov or (919) 715-6224.
Sincerely,
MarkZlHkard,sistant Chief
Construction Grants & Loans Section
Attachments
cc: Aaron Donaldson, Cumberland County Tax Collector, PO Box 449, Fayetteville, NC 28302
Belinda Henson, Fayetteville Regional Office
Pam Whitley
WQ Central Files — Permit SW6071202 -
16M Mail Service Center, Raleigh, North Carolina 27699-1633 One
Location: 2728 Capital Blvd. Raleigh, North Carolina 27604 NorthCarolina
Phone: 919.733.69001 FAX: 919.715.62291 Customer Service: 1.877.623-6748
Internet: www.ncwaterquality,org ;Vatyrally
An Equal Opportunity 1 Affirmative Action Employer
hl~,'i t=3aW.QXJ.s& TCN:
This a fiht�d ><sr )be used only for waste treatment systems and
ealuin> t.>IflideFtt a authority of the NC Division of Water Oualitv (DWO) Rev. 06/0112007
DIRECTIONS: Complete and mail signed copies of the application form and all supporting information to both: 1) the County Tax Administrator for the County in which the facility is located (one copy) AND 2)
to the NC Division of Watetl Quality, Construction Grants and Loans Section, 1633 Mail Service Center, Raleigh, NC 27699-1633 (two copies). Type or print in blue or black ink. A separate application
package is required for each facility where property proposed for tax certification is located.
THIS APPLICATION WILL NOT BE PROCESSED WITHOUT COMPLETE AND ACCURATEINFORMATION. If you have any questions regarding this application, please call the local tax office or the NC
Division of Water Quality at 919[733-6900 or their web site at www.nccgl.net for more specific contact information.
Please Note:
a) Tax Certifications will only be processed for facilities under the authority of the DWQ and only if the DWQ has found that the described property:
1. Has been or will be,constructed or installed;
2. Complies with or that plans therefore which have been submitted to the DWQ indicate that it will comply with the requirements of the Environmental Management Commission;
3. Is being effectively operated or will, when completed, be required to operate in accordance with the terns and conditions of the permit, certificate of approval, or other document of approval issued by the
DWQ: and
4. Has or, when completed, will have as its PRIMARY rather than incidental purpose the reduction of water pollution.
6). Is being used exclusively (100%) for wash treatment
b) If approved, the Tax Certification issued will incorporate all requested assets at the facility that meet the criteria for Tax Certification by DWQ. Therefore this application must include any new assets for
which Tax Certification is beinq requested, as well as anv assets previously receivinq Tax Certification from DWO for which Tax Certification is still needed.
AApplicant(Applicant is the owner of, and taxpayer for, the property described in this appflcation for tax certification.
Name of Applicant:
Name of Facility:
Manchester Road Properties, LLC
Concrete Service Company, Inc.
Address of Applicant, if different from facility where property located:
Physical Address of Facility where property located (no P.O. Box):
P.O. Drawer 1867 Fayetteville, NC 28302
365 W. Manchester Rd, Spring Lake, NC 28390
(address) (city) (zip)
(street address) (city) (zip)
Business Relationship of Applicant to facility where property Iocated:Lessor
County where property located: Cumberland
Name of Contact Person at Facility where property located:
LannyClark
Does the Applicant hold any NC Division of Water Quality Permits? N Yes I ❑ No I Title: General Manager Phone Number: 910-48M396
If yes, please fist NCG140000, COCNCG 140375 issued 1/25/2008
Permit Nos :
If approved, will this be the first Tax Certification issued for this Facility? If no, attach any previously issued tax
® Yes 1 ❑ No certifications
B. Complete this Section only if the Operator/User of the facil' and a ui ment is different from the Owner of the facil' v-;m Cep—E
Warne of Concrete Service Company, Inc.
Operator/User: q 2W
Operator/User 130 Builders Blvd. Fayetteville, NC 28301
Address:
(address) (city) {zip)
Operator/User Contact Lanny Clark, General Manager
Name:
Relabonship between 0 eratorlUser of facility and equipment and applicant Lessee
`ATTACH A PROCESS SCHEMATIC TO YOUR APPLICATION The number of each item for which Tax Certification is being requested must be shown on the schematic*'
} Application Continues on Next Page -�
DIVISION OF .WATER QUALITY TAX CERTIFICATION & EXEMPTION APPLICATION
Waste Treatment Systems & Equipment: Waste treatment systems & equipment must be used exclusively for the abatement of water pollution
PAGE2
Rev05M 2007
Was o"M fiSW in I AsM Ntmbw, I I % D the fOf is this asset
the Permit (YesINO) Vahide kknffr�on PoMAM ` Yaar of Original Flistorir a! replacm. a prior
♦ � FMI��
a an asp! is 98*d in dw UINO pwmq, tlw dsaafpdon muq p kbwA ml u H�d on 0" tuned pwrrit. M 0* CU44 it not spOCOcNDy ROOW In the UM pave I UW appdoWd must atdA dolled bdwmadw m W why dw assm atmuW gwtCy f« Tu CMt[hatiom
When -rWybp sys ft— « parwd, oE7art fs not cweDy6rD dw cast of no agrdtmwd or"year at aV7dLWM
Q
Facilities: To qualify for tax certification, the building or section of building being applied for. must be used exclusively for water pollution prevention. A sketch of the building, square footage along with
details as to how the for
is used for water pollution prevention, is required.
n
;
Land: To qualify fort tax cer itication, the land must be used exclusively for water pollution prevention. A schematic diagram of the facility detailing the land being applied for is required. The amount of land
(acreage) is required aAd how this land is being used to prevent water polution. For wastewater treatment and prigation system list separately the acreage used for actual treatment from the acreage required
by the faciliiy s water quality permit for buffers and setbacks.
SIGNATURE: C
I hereby certify that the"above equipment, facilities and/or land are used for the purpose stated, and that the information presented in this application is accurate. Furthermore, I certify that any portable or
mobile equipment listed is application "ll b used exclusively in the state of North Carolina
Applicant
Signature: ��yjy .�i'i uy / Lf' Title: 19'7 r Date: 1/—Z5—O9
NOTICE. The penalty for tales �rnent, representation or certification � f �*d nmrne also)Of: 4- SC P IGP_ �o�%�� � �G •
herein includes imprisonment and I or the assessment of civil penalties. (Name of Appkant auusitess gratify) To-wo
ATTACHMENT DWQ, --1
Description of Waste Treatment Systems or Equipment:
❑ Recycle screw and screens including pumps, electrical wiring, land
concrete foundations, concrete pavement, concrete storage area, concrete
settling basins, overflow pond with spillways, meters, valves, piping,
engineering, installation and freight for reclaiming waste concrete and
water.
Pump, piping, electrical, real estate, engineering and installation for
reclaiming cement slurry. ___
How is the equipment used for pollution abatement?
❑ Equipment is used to recycle and reclaim all waste water and waste
concrete from ready concrete batch plant operations as well as storm water
from plant site.
DENFft
n' FRO
J" 19 2010
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Mr. Richard R. Allen, Sr.
Concrete Service Company
PO Drawer 1867
Fayetteville; NC 28302
Dear Mr. Allen:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Colcen H. Sullins, Director
Division of Water Quality
January 25, 2008
DENR-FRO
JAN 1 a 2008
DWQ
Subject: General Permit No. NCG140000
Concrete Service Company
COC No. NCG140375
Cumberland County
In accordance with your application for a discharge permit received on January 11, 2 00 8,
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 May 9, 1994 (or as subsequently
amended).
Please take notice that this certificate of coverage is 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. This permit does 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.
An Authorization to Construct treatment facilities has been issued concurrently with
this COC. The Fayetteville Regional Office, telephone number (910) 433-3300, shall be
notified at least forty-eight (48) hours in advance of operation of the installed facilities so that an
in -place inspection can be made. 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 this permitted facility, a
certification must be received from a professional engineer certifying that the permitted
facility has been installed in accordance with the NPDES Permit, the associated
Authorization to Construct, and the approved plans and specifications. Please mail the
certification (attached) to the Stormwater Permitting Unit, 1617 Mail Service Center, Raleigh,
NC 27699-1617.
re'Carolina
oNaturally
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (919) 733-5083 Customer Service.
Internet: www.ncwatcrq1!alitv.ore Location; 512 N. Salisbury St. Raleigh, NC 27604 Fax (919) 733-9612 I-877-623-6748
An Equal Opportunity/Affirmative Action Employer— 50% Recycled110% Post Consumer Paper
Mr. Richard R. Allen, Sr.
Concrete Service Company
NCG 140375
January 25, 2008
Please note that any future construction, installation, or modification of wastewater
treatment facilities (including process wastewater recycle systems) will require an Authorization
to Construct (ATC) prior to construction per 15A NCAC 2H .0138 & .0139. You must submit,
in triplicate, plans/specifications and design calculations, stamped and sealed by a professional
engineer, with a letter requesting an ATC to the Stormwater Permitting Unit, 1617 Mail Service
Center, Raleigh, NC 27699-1617.]
One (1) set of approved plans and specifications is being forwarded to you. The
Permittee shall maintain a copy of the approved plans and specifications on file for the life of the
facility. If you have any questions concerning this permit or Authorization to Construct, please
contact Robert Patterson at telephone number (919) 733-5083 ext. 360.
Sincerely,
for Coleen H. Sullins
cc: Fayetteville Regional Office
Central Files
Stormwater Permitting Unit Files
enclosure
Mr: Ftichard R. Allen, Sr.
Concrete Service Company
NCG 140375
January 25, 2008
Engineer's Certification (COC. No. NCG140375)
1, , as a duly registered Professional Engineer in the
State of North Carolina, having been authorized to observe (periodically, weekly, full time) the
construction of the project, for the
Project Name Location
Permtttee hereby state that, to the best of my abilities, due care and diligence was used in the
observation of the following installations:
• Construction of a process wastewater recycle system at the Concrete Service Company
Ready Mix site,
I certify that the construction of the above referenced project 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
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG.140000
CERTIFICATE OF COVERAGE No. NCG140375
STORMWATER AND PROCESS WATER 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,
Richard R. Allen, Sr. / Concrete Service Company
is hereby authorized to discharge stormwater from a facility located at
Concrete Service Company.
W. Manchester Road
Fayetteville
Cumberland County
to receiving waters designated as Tank Creek, a class C water in the Cape fear River Basin, in
accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts I, II, III, IV, V, and VI of General Permit No. NCG140000 as attached.
This certificate of coverage shall become effective January 25, 2008.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 25`h day of January, 2008.
for Coleen H. Sullins., Director
Division of Water Quality
By the Authority of the Environmental Management Commission
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Richard R. Allen, Sr.
Concrete Service Company
Latitude: 351 11'24" N
Longitude: 780 59'4211 w
Receiving Stream: Tank Creek
Stream Class: C
Sub -basin: 03-06-14 (Cape Fear River Basin)
Facility Location
ALITO.VYWA Division of Water Quality / Surface Water Protection
NCDENRNational -Pollutant Discharge Elimination System
Er.�wa...errt .uo >ra„�w ar�cro N C G 140000
NOTICE OF INTENT
FOR AGENCY USE ONLY
Date Received
Ye
Month
Da
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Certificate of Covers
e
Check N ItAmount
Permit Assigned to
L
National Pollutant Discharge Elimination System application for coverage under General Permit
NCG 140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities classified as:
SIC (Standard Industrial Classification) Code - 3273 Heady 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 10 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 N01 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 flaws 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 NCG14 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 8 15.
'Ka I For questions, please contact the DWO Regional Office for your area. (See page 5)
(Please print or type)
✓ 1) Mailing address of owner/operator (address to which all permit correspondence will be mailed):
Name ►.tichard R. Allen Sr.
Street Address P.O. Drawer 1867
City Fayetteville _ State NC ZIP Code 28302
Telephone No. (910) 323-8509 Fax: (910) 323-9379
✓ 2) Location of facility producing discharge:
Facility Name Concrete Service Company
Facility Contact Laren H. Clark
Street Address w. Manchester Road
City Spring Lake State NC ZIP Code 28390
County Cumberland
Telephone No. (910) 483-0396 Fax: (910) 486-6724
Page 1 of 5
'As per 15A NCAC 2Ff .0106
2Wless treatment facilities are designed, constructed, and I ernal to the company who are qualified to
perform such work for their respective companies in accord a kFf der) to t .2 (7), plans and specifications must be signed
and sealed by a P.E.
JAN 1 1 2008
SWU-229-091007 Last revised 09110/07
is
NCG140000 N.O.I.
Travel N on NC Hwy 87 (N. Bragg Blvd,) from downtown Spring
3) Physical location information: Lake toward Sanford, NC. Make left turn onto W. Manchester Rd.
Subject property is approx. 0.52 miles on left hand side.
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).
(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 35011 ' 24. 36" Longitude 78° 59' 41 .64" (deg, min, sec)
5) This NPDES Permit Application applies to which of the following:
® New or Proposed facility
❑ Existing
01 6) Standard Industrial Classification:
Date operation is to begin 02/28/013
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 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.)
Ready Mix concrete plant. Industrial activities include concrete reclaimation,
truck wash, stockpile irrigation and plant wash down.
8) Discharge points / Receiving waters:
Now many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? One
What is the dame of the body or bodies of water (creek, stream, river, lake, etc.) that the facility stormwater
and/or wastewater discharges end up in? ]little River
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). No
Receiving water classification (if known):
Note: Discharge of process wastewater to receiving waters classified as WS-li 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?
® No
❑ Yes
If yes, list the permit numbers for all current NPDES permits for this facility:
r 10) Does this facility have any Non -Discharge permits (ex: recycle permits)?
I3 No
O 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?
No
® Yes
If yes, please briefly describe: General good housekeeping and a concrete reclaimation
system, stormwaterpond and 2H adjustment unit designed to treat stormwater.
Page 2 of 5
SW U-229.091007
last revised 09/07/2007
NCG140000 N.O.I.
V 12) Does this facility have a Stormwater Pollution Prevention Plan?
❑ No
U Yes
If yes, when was it implemented? After construction is complete. -
13) Are vehicle maintenance activities occurring or planned at this facility?
® 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 E) Yes ❑ No
Wetting of raw material stockpiles ® Yes ❑ No
Mixing drum cleaning IRK) Yes ❑ No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater. Use of a reclaimation system, stormwater detention pond and pH adjustment
VsFor a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
l_� area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH - 6-9 SU, Total
Suspended Solids (TSS) - 30 mg/I, and Settleable Solids (SS) -- 5 mill.) [Use separate sheet(s)].
If all these discharges are recycled, please refer to Question 15.
For lants 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 sitesyou 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 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?
® No
❑ 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/1), 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
SWU-229-091007 Last revised 09/07/2007
NCG140000 N.O.I.
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
® No ❑ 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.)
f 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?
® No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
® No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste: NA
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 Managementl Commission implementing this Article shall be guilty 01 a Ctass 2 misdemeanor which may include a fine
not to exceed ten thousand dollars ($10,000).
l 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 Na ryp of
Title: C-4
r
finA �Gfir
(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
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:
❑ 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)
t 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
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).
=� ❑ 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) storm water/wastewater treatment structures, (c) location of
stormwaterlwastewater 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 Duality
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.
DWO Re tonal Office Contact Information:
Asheville Office ......
(828) 296-4500
Fayetteville Office ...
(910) 433-3300
Mooresville Office ...
(704) 663-1699
Raleigh Office ........
(919) 791-4200
Washington Office ...(252)
946-6481
Wilmington Office...
(910) 796-7215
Winston-Salem ......
(336) 771-5000
Central Office .........(919)
733-5083
Page 5 of 5
SW U-229.091007 Last reviser! 09/07/2007
4�
REFERENCES: SCALE: i ;24,000
1, OVERHILLS, NC AND MANCHESTER, NC DIGITAL RASTER GRAPHIC FILES,
US GEOLOGICAL SURVEY. SCANNED FROM 1:24,000-SCALE USGS TOPOGRAPHIC
MAPS (OVERHILLS, NC, 1957 PHOTOREVISED 1971, AND MANCHESTER, NC, 1997), Feet
2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION Q ,00� 2,000 4,0�17
ATLAS, BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, O.C.
DRAWN DATE:
TOPOGRAPHIC SITE MAP BY:'�' JANUARY 2008
iD-ATLANTIC CONCRETE SERVICE COMPANY °RAFr JOB NO:
ASSOCIATES. INC.WEST MANCHESTER ROAD CHECK: 000R1944.00
- ENG. GIS NO:
Engineering & Emr'onmentnl Solutions SPRING LAKE, NORTH CAROLINA CHECK: 010-R1944.00-1
APPROVAL: DWG NO: 1
Mr. Richard R. Allen Sr.
PO Drawer 1867
Fayetteville, North Carolina 28302
Dear Mr. Allen:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen N. Sullins, Director
Water Quality
December 7, zoo7 DENR061�%of
DEC f ) 2007
DWQ
Subject: Return of NCG140000 NOI, #1166
Concrete Service Company - Spring Lake
Cumberland County
On December 5, 2007, the Division of Water Quality, Stormwater Permitting Unit received your
Notice of Intent (NOI) to be covered under North Carolina's General Permit NCG140000, submitted
for your proposed location on West Manchester Road in Spring Lake. Your submittal contained a
check for $100, and three copies of: a transmittal letter from Crawford Design Company, the NOI
application form, a site location map, a site layout drawing, Crawford's design notes and
calculations, and DLR's approval letter for your erosion and sedimentation control plan. The
submittal is significantly deficient, and we are returning it unprocessed. Please ask your engineer
to make an appointment with me for a face-to-face explanation of the minimum submittal
requirements.
The submittal is deficient in the following particulars.
1. Site Plan. Please consider that as reviewers, we can't determine from the site plan
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 typical Items of interest in a
review, Instructions on the required content of the site plan are presented on page 5 of 5
of the NOI that you submitted.
a. We cannot tell from the graphic presentation where the property lines are.
b. The drainage areas are not delineated on the site plan.
c. The location of stormwater and wastewater outfalls are not labeled as such.
d. The limits of the aggregate storage areas are indistinct, and consequently; it is not
clear to us that all drainage from the aggregate storage areas will enter the proposed
large basin.
e. It is not clear that all site stormwater discharge points are identified on the drawing.
f. Also note at the same location in the NOI is the requirement that the site plan must
show runoff conveyance features (like ditches, swales, runoff control berms, and
pipes). We' are not confident that the site plan shows the full extent of the features
on the site that may affect runoff flow direction.
2. Design Notes and design details
a. The design notes Include a soils investigation report, but in the absence of a design
narrative, it is not clear to us what the purpose of..the soils work is. The submittal
presents the report, but then does not appear to present any design conclusion from
the work. Further, if the work is presented in support of a design concept that
Includes infiltration, please note that a single sample is not sufficient to characterize
the infiltration value over the entire base of the proposed holding pond. Further, it
appears that the soil sample was retrieved from an elevation significantly above the
t�J110 Carolina
�tura!(r�
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone (9I9) 733-7059 Customer Service
Internet: www.ncwaterqunlity.ora Location: 512 N. Salisbury St. Raleigh, NC 27604 fax (919) 733-9612 1-877-623-6748
An Equal OpportunitylAfnnative Action Employer— 50% Recycled/10% Post Consumer Paper
Mr. Richard Allen Sr.
Page 2 of 2
December 7, 2007
proposed base of the basin, calling into question the applicability of the single
permeabllltymeasurement.
D. The design notes include a pH test result, but in the absence of a design narrative, it
Is not clear•to us what the purpose of the pH testing is. The submittal presents the
pH testing, but then does not appear to present any design conclusion from the
work. Further, it is not clear what Fluid the pH measurement pertains to.
c. The design notes conclude that the large basin accommodates the 25-year rainfall
volume, but the weir elevation on the site plan is 1.25' lower than the required
elevation. The design conclusion is not supported by the design calculations.
Further, please note that some means to empty the basin must be included In the
design concept.
d. Typically we see four wastewater sources at a ready -mix site: drum wash out, truck
,.wash off, aggregate pile drainage, and wash down from the truck loading area. The
design notes address three of these typical sources, but the notes do not address
wash down from the truck loading area. We must understand how you will deal with
wash down flows from under the loading silo.
e. Please note that six different configurations of the recycle system chambers are
presented in the design notes and the site plan. It Is not clear to us which Is
included in the design. Please limit your re -submittal. to the configuration that you
actually wish us to permit.
f. We note that the soils consultant reports a groundwater elevation of 6.5' below
ground surface. From the site plan we see one spot elevation of 171.06'.
Subtracting the measured depth to groundwater, we get a groundwater elevation
potentially as high as 164.56' on the day It was measured. Given that North Carolina z'r
Is experiencing the most severe drought in recorded history, with accompanying
-- -groundwater table depression! it is not clear to -us how the -design of the basin -- - ;
bottom at 164.50' acknowledges the likely increase in groundwater elevation, and
the accompanying reduction in available basin volume under more normal conditions. '
Please incorporate this consideration in your re -submittal
g. Please clarify for us the source of the fogging water that will be used to irrigate the
aggregate piles.
Please contact me with any questions or comments.
Sincerely,
Ken Pickle, P.E.
DWQ Stormwater Permitting Unit
(919) 733-5083x584
ken,pickle@ncma11.net
Enclosures: Returned application package
cc letter only: Adrianna Hegeman, Crawford Design Co, 914 Hay St., Fayetteville, NC 28305
bWQ Fayetteville Regional Office
SPU County Files - Cumberland County