NCG140368_COMPLETE FILE - HISTORICAL_20090717

- STORMWATER-DIVISION CODING SHEET
RESCISSIONS .
PERMIT NO..
--------------
' L4 3b U
DOC TYPE
C* COMPLETE FILE - HISTORICAL
DATE OF
RESCISSION
❑ :�bb
YYYYMMDD

ANA
NC ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director Dee Freeman
Secretary
Corky LaneJuly 17, 2009
APAC-Gcorgia (Asheville Division)
PO Box 127
Greenville, SC 29602
Subject: Rescission ofNPDES General Permit
Certificate of Coverage Number NCG 140368
APAC-Georgia (Asheville Division)
Dear Corky Lane:
On 2/4/2009, the Division of Water Quality received your request to rescind you coverage under Certificate of Coverage
Number NCG 140368. In accordance with your request, Certificate of Coverage Number NCG 140368 is rescinded
effective immediately.
Operating a treatment facility, discharging wastewater or discharging specific types of stormwatcr to waters of the State
without valid coverage under an NPDES permit will subject the responsible party to a civil penalty of up to $25,000 per
day. It is the intention of DWQ that enforcement proceedings will occur for persons that have voluntarily relinquished
pernut coverage when, in fact, continuing permit coverage was necessary. If, in retrospect, you feel the site still requires
permit coverage, you should notify this office immediately. Furthermore, if in the future you wish to again discharge to
the State's surface waters, you must first apply for and receive a new NPDES permit.
If the facility is in the process of being sold, you will be performing a public service if you would inform the new or
prospective owners of their potential heed for NPDES permit coverage.
If you have questions about this matter, please contact Sarah Young at [phone], or the Water Quality staff in our
Asheville Regional Office at 828-296-4500.
Sincerely,erely, �/
l%� /�- `
/i Coleen 1-I. Sullins
cc: Asheville Regional Office
Stormwater Permitting Unit
DWQ Central Piles - w/attachments
Fran McPherson, DWQ Budget Office
Wetlands and Stormwater Branch
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone] Customer Service: 1-877-623-6748
Internet: www.ncwatemuality.org
An Equal opportunity 1 Affirmative Action Employer
F'j
2 0 2009 L /
J I
WATT-H •,.r;Llr`l Su� ION
H r
NorthCarblina'

FACILITY NWC-
COUNTY �,Jb N VQVV CLASS
MAILING ADDRESS R�� C SalERbt
Fo Q)g lao
RESPONSIBLE FACILITY OPERATOR
OFFICIAL REPRESENTATIVE
TELEPHONE NO.
WHERE LOCATED
NPDES PERMIT NUMBER NC G )Ab_M_C�,
STATE FEDERAL
DATE ISSUED
EXPIRATION DATE
STREAM: NAME
CLASS
7910
SUB -BASIN
CERT. NUMBER
CLASS
OTHER PERMIT NO.
DATE ISSUED

® • Michael F. Easley, Governor
i
�- William G. Ross Jr., Secretary
rNorth Carolina Department of Environment and Natural Resources
� Alan W. Klimek, P.E. Director
Division of Water Quality
March 9, 2007
Mr. Milton Lane
ESH Director
APAC Southeast
PO Box 127
Greenville, SC 29602
DLEDV
MAR 1 4 2007 DD
WATER QUALITY SECTION
ASHE'VILLE REGIONAL OFFICE
Subject: General Permit No. NCGi40000
APAC Asheville
COC NCG140368
Buncombe County
Dear Mr. Lane:
In accordance with your application for a discharge permit received on February 15, 2007, we are
forwarding herewith the subject certificate of coverage to discharge under the subject state — NPDES
general permit. This permit is issued pursuant to the requirements of North Carolina General Statute 143-
215.1 and the Memorandum of Agreement between North Carolina and the US Environmental Protection
Agency dated -May 9 1994 (or as-subscquently 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. Please also note the requirement to have a Stormwater Pollution
Prevention Plan and to comply with the cut off concentrations listed in the permit.
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.
If you have any questions concerning this permit, please contact Kelly Johnson at telephone
number [phone] ext. 376.
Sincerely,
OPM""A SIONED BY
PR ADLEY BENNETr
Alan W. Klimek, P.E.
cc: Mr. Adam Gribb, RTP Environmental, 1900 South Highway 14, Suite 413, Greer, SC 29651
lAsheville Regional Office, Starr Silvis
Central Files
Stormwater Permitting Unit Files
enc: Certificate of Coverage W�e"p'ItCarolma
✓vaturrrlly
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.ncwatemualitv.orR Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Aff rmahve Action Employer— 50% Recycledll0% Post Consumer Paper

0
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NCG140000
CERTIFICATE OF COVERAGE No. NCG140368
STORM 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,
APAC Southeast
is hereby authorized to discharge stormwater from a facility located at
APAC Asheville
Intersection of I-40 and I-26
Asheville
Buncombe County
to receiving waters designated as Lake Ashnoca, a class C water in the French Broad 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. NCG 140000 as attached.
This certificate of coverage shall become March 9, 2007.
This Certificate of Coverage shall remain in effect for the duration of the General Permit.
Signed this 9`' day of March 2007.
ORIGINAL SIGNED BY
BR<ADLEY BENNETT
for Alan W. Klimek, P.E., Director
Division of Water Quality
By the Authority of the Environmental Management Commission

LOCATION MAP: ® •
Latitude: 35133'33" N NCG110105 Facility ty
County: Buncombe APAC Southeast Location
Stream Class: C
Receiving Stream: Lake Ashnoca
Sub -basin: 04-03-02 (French Broad River Basin) Not to scale

G/io - I'm,,aa 1 �j��ra J151r &.�J 4� �� V
l No AGnvI T� �(/(J I
6/1( - %-Jr W) 14",v P,cK's �Sga.frl 'r" R= 5clvd-6
E WATe
oa° Ao, Permit Rescission Request Form
h Certificate of Coverage Number
° National Pollutant Discharge Elimination System �I I� NCG140368
General Permit NCG140000
Please fill out and return this form only if you no longer need to maintain your NPDES stormwater permit.
The following is the information currently in our database for your facility. Please review this information carefully and
make all corrections as necessary in the space provided to the right of the current information.
Owner Affiliation Information
Owner / Organization Name:
Owner Contact:
Mailing Address:
Phone Number:
Fax Number:
E-mail address:
* Rescission Correspondence will be mailec
APAC Georgia -Ballenger Division
PO Box 127
Greenville, SC 296020127
864-292-9550 Ext.
Facility/Permit Contact Information
Facility Name:
APAC-Asheville
Facility Physical Address:
Intersection Of 1-40 And I-26
Asheville, NC 28801
Facility Contact:
Corkey Lane
Mailing Address:
PO Box 127
Greenville,SC 296020127
Phone Number:
864-630-1230 Ext.
Fax Number:
E-mail address:
Reason for rescission request (This is required information. Attach separate sheet if necessary):
i1rh;f ec a mivaA of S��
REQUEST AND CERTIFICATION
I, as an authorized representative, hereby request rescission of certificate of coverage NCG140368 under NPDES
Stormwater General Permit NCG140000 for the subject facility. I am familiar with the information contained in this
request and to the best of my knowledge and belief such information is true, complete and accurate.
Signature
Print or type nydme of person signing above
Date .
EH
Title
Please return this completed rescission request form to: SW General Permit Coverac
Stormwater Permitting Unit
1617 Mail Service Center
Raleigh, North Carolina 271
If -0y
r
MAY - 4 2009
WATER QUALITY SECTION
'HEVIL LE REGIONAL OFFIC

RTP ENVIRONMENTAL ASSOCIATES INCO
AIR • WATER • SOLID WASTE CONSULTANTS
1900 South Highway 14, Suite 4-13
Greer, South Carolina 296SI
January 19, 2007
Ken Pickle
Stormwater and General Pen -nits Unit
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Notice of Intent (NOI)
APAC Ready Mix Concrete Plant for DOT Construction
Asheville, Buncombe County, NC
Dear Mr. Pickle:
[phone]
Fax: [phone]
L�
JAN 2 2 20F
APAC — Ballenger Division is proposing to construct a temporary concrete ready mix
plant on a parcel of land located at the Intersection of 1-40 and 1-26 in Asheville, NC
2921. This plant, to be located within the DOT -maintained right-of-way and will supply
concrete for nearby DOT road construction in this area.
This project will involve development of a parcel of land approximately 1.0 acres in size.
APAC understands that this project will also be subject to the requirements set forth in
the General Stormwater Permit NCGO10000 "Construction Activities" since more than t
acre of land will be disturbed. Also, this ready mix plant will be subject to the
requirements set forth in General Stormwater Permit NCG 140000 "Ready Mix Concrete
Plants'. All appropriate erosion control measures will be used to prevent/minimize
erosion during the construction of this plant. Please note as this is an ongoing
construction project expected elevations were used to develop the site maps.
We have enclosed a copy of our NOI for this project. 1n addition, we are enclosing the
filing fee of $80 for this project. After reviewing our NOI, if you have any questions or
comments, please contact me at [phone] or you can reach me by e-mail at
a.gribb@ rtpenv.com. Thank you for your assistance in this matter.
Sincerely,
RTP Environmental Associates, Inc.
Adam Gribb

JAN 2 2 2007
Division o W
Bce Water Protection
Nletllulds t. 9tlxntwalar ranch
NCDENR National Pollutant Discharge Elimination System
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NCG140000
NOTICE OF INTENT
fUR AGENCY USE UNI.Y
Date llcccivM
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National Pollutant Discharge Elimination System application for coverage under General Per
NCG140000:
STORMWATER AND PROCESS WASTEWATER DISCHARGES associated with activities clas ifid asi-
SIC (Standard Industrial Classification) Code - 3273 Ready Mixed Concrete
For new plant sites that will discharge or recycle process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to Construct (ATC) wastewater
treatment facilities. ATC requests must be submitted at least 90 days prior to construction'.
For existing plant sites discharging or recycling process wastewater (even if commingled with
stormwater): This NOI is also an APPLICATION FOR Authorization to continue to operate wastewater
treatment facilities in place. Construction, modification, or installation of any new treatment components
at an existing site requires an ATC.
Treatment facilities used to treat or recycle process wastewater (including stormwater BMP structures
treating process wastewater flows commingled with stormwater) require an ATC prior to construction
per 15A NCAC 2H .0138. The authorization to construct or continue to operate will be issued at the
same time as the Certificate of Coverage (COC) for the NCG 14 permit. Design of treatment facilities
must comply with requirements of 15A NCAC 2H .0138 & .0139.
Construction of wastewater treatment facilities (this includes recycle systems) at new or existing plant
sites requires submission of three (3) sets of plans and specifications signed and sealed by a
Professional Engineer (P.E.) or qualified staff' along with this application. A copy of the design
calculations should be included. Please see questions 14 & 15.
For questions, please contact the DWQ 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 &7U+-"k �as h-
StreetAddress la-7
City State SC ZIP Code UO .;i,
Telephone No. 964 6 30 - 1;J0 Fax: S A,
2) Location of facility producing discharge:
Facility Name 0T �C A-Shp-VRTP
Facility Contact e kj E
Street Address tw o C, - C
City iFsha v ) I { State PC ZIP Code
County
Telephone No. °d6 L1 630 -0-30 Fax: Air
Page 1 of 5
'Asper 15A NCAC 2H .0106
'Unless treatment facilities are designed, constructed, and put into operation by employees internal to the company who are qualified to
perform such work for their respective companies in accordance with General Statutes, 89C-25 (7), plans and specifications must be signed
and sealed by a P.E.
SWU-229-101905 Last revised 10/19/2005

NCG140000 N.O.I.
3) Physical location information:
Please provide a narrative description of how to get to the facility (use street namespp state road numbers, and
distance and direction from a roadway intersection). TVA 'It. serrs1+� uw a'T - yi7 e„,�
'r' _ .� r
(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 r3 S 3 3 s 3 '' Longitude �';I' 3 o t (deg, min, sec) ^�
5) This NPDES Permit Application applies to which of the following: o
p New or Proposed Facility Date operation is to begin w
❑ Existing \,
6) Standard Industrial Classification: �V\
Provide the 4 digit Standard Industrial Classification Code (SIC Code) that describes the primary industrial
activity at this facility
SIC Code: 3 "�_ % 3
7) Provide a brief description of the types of industrial activities and products produced at this facility:
(Include a site diagram showing the pro1c11e1s��s areas resent at this facility.)
.See � YV-�i C.�C�
S) Discharge points / Receiving waters:
How many discharge points (ditches, pipes, channels, etc.) convey stormwater and/or wastewater from the
property? 1
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? _ I..g �[.� �. q h rto c_�'
If the site stormwater discharges to a separate storm sewer system, rjaarpe the operator of the separate storm
sewer system (e.g. City of Raleigh municipal storm sewer). /Ve)
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)?
d 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?
❑ No
rP Yes I
If yes, please briefly describe: Scc aGr �2�
Page 2 of 5
SWU-229-101905 Last revised 10/19/2005

NCG140000 N.O.I.
12) Does this facility have a Stormwater Pollution Prevention Plan?
® No/ W, �) bu i btQ�cry . -i+ 64,rV V-'P
❑ Yes
If yes, when was it implemented?
13) Are vehicle maintenance activities occurring or planned at this facility? r
Ole
❑ Yes �
Wastewater Treatment Design Information
14) Are discharges occurring or planned from any of the following process wastewater generatingities?
Vehicle and equipment cleaning ❑ Yes ® No \\��
Wetting of raw material stockpiles ❑ Yes N No
Mixing drum cleaning
❑ Yes q No
If yes to any of the above, please describe the type of process used to treat and/or recycle the process
wastewater.
For a sufficient application, you must provide design specifics (e.g., design volume, retention time, surface
1 area, etc.) and calculations to demonstrate compliance with permit effluent limits (pH — 6-9 SU, Total
Suspended Solids (TSS) — 30 mgfI, and Settleable Solids (SS) — 5 ml/l.) [Use separate sheet(s)].
If all these discharges are recycled, please refer to Question 15.
For plants that recycle and/or discharge process wastewater -
When applying for this permit you are also applying for an authorization to construct (new
treatment facilities) or authorization to continue to operate (existing treatment facilities) as
part of the NOL 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. 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
JA Yes
If yes, what size storm event is the system designed to hold before overflowing? (for example, 10-yr, 24-hr)
25 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)].
KW
a sufficient application, the information must demonstrate compliance of final discharge with permit effluent
1 _ limits (pH — 6-9 SU, Total Suspended Solids (TSS) — 30 mg/I, and Settleable Solids (SS) — 5 mIA), 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-229-101905 Last revised 10/19/2005

NCG140000 N.O.I.
16) Are wastewater treatment facilities (including recycle systems) planned in the 100-year flood plain?
I� 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: f�
a) Is this facility a Hazardous Waste Treatment, Storage, or Disposal Facility? 0
No
❑ Yes
b) Is this facility a Small Quantity Generator (less than 1000 kg. of hazardous waste generated per montf-
hazardous waste? X
No
❑ Yes
c) Is this facility a Large Quantity Generator (1000 kg. or more of hazardous waste generated per month) of
hazardous waste?
6 No
❑ Yes
d) If you answered yes to questions b. or c., please provide the following information:
Type(s) of waste:
How is material stored:
Where is material stored:
How many disposal shipments per year:
Name of transport / disposal vendor:
Vendor address:
18) Certification:
North Carolina General Statute 143-215.6 B(i) provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan, or other
document filed or required to be maintained under this Article or a rule implementing this Article; or who knowingly makes a false
statement of a material fact in a rulemaking proceeding or contested case under this Article; or who falsifies, tampers with, or knowingly
renders inaccurate any recording or monitoring device or method required to be operated or maintained under this Article or rules or 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 Pefsgn Signing:
Title: �' f l /Lj1 c v
(y- o
(Date Signed)
Notice of Intent must be accompanied by a check or money order for $80.00 made payable to:
NCDENR
Page 4 of 5
SWU-229-101905 Last revised 10/1912005

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PROCESS DESCRIPTION
APAC-Southeast, Inc., converts aggregate, sand, cement, flyash and water into concrete
for the construction of concrete roads and highways. The incoming cement is transferred
to the cement silos. Aggregate, sand, cement, and flyash from the storage silos are
combined in the cement scales where they are mixed and sent up the enclosed conveyor
belt system to the mixer where water is added. The mix is weighed and then unloaded
into trucks for transport to thejob site.

APACBALLENGER PAVING CO., INC.
RTP ENVIRONMENTAL ASSOCIATES, INCP FIGURE FOUR
PROJECT NO. 4040.03 DATE: 8/96 1 PROCESS FLOW DIAGRAM

Best Management Praftices
The facility will use the following best management practices:
Litter will be controlled by daily area clean ups
Storage stockpiles will be wetted as needed
Traffic entering the site will pass over gravel beds
Processing equipment will be inspected to ensure proper operation and maintenance
Vehicles will be inspected to ensure proper operation and maintenance
Silt fence will be installed as needed

Calculations for Stormwater Runoff/Collection in Truck Wash System
(all calculations, factors based on NCDENR Erosion and Sediment Control Manual)
Specific Calculations for Wastewater Recycling System
Rainfall,Ashevile, 25-yr, 24-hr storm =
.
6
inches_
(figure 8.03k)
— ---
Number of Washwater collection tanks =
2
Size of Washwater collection tanks:
#1 =
8600
gallons
(1105 cf)
#2 =
6100
gallons
(825 co
#1 Collection Tank acts as primary collection
point
#2 Collection Tank receives water from #1 1 (acts as secondary collection tank)
Estimated Volume of Washwater/truck =
200
gallons
Maximum # trucks washed/day
12
Gallons of truck washwater managed/day
2400
gallons
Size of truck wash pad (25' x 25') =
625
sq.feet
Depth of pad (with curbing) =
8
inches
(depth sufficient to contain 25 yr storm accumulation)

Volume of truck wash pad =
416.667
cubic feet
3116 6-7
gallons
Length of pad =
_
(25 ft)
300
inches
Slope or "drop" across pad =
--�----
5
inches
Slope of site =
Peak runoff rate, moderate slope =
(figure 8.03p)
- ---
--_ 1.7
2.2
a ---I
cfs/in
NO RUNON FROM OTHER PROPERTIES
Size of #1 Tank:
length
width
7.5
22
feet
feet
height
7
feet
Volume
1155
cubic feet
_
8639
gallons
_
Size of #2 Tank: —
length
7.5
feet
wdith
22
feet
height
5
feet
_
Volume
825
cubic feet
_
6171
gallons
--
__ _
—
Assuming worst case scenario, continous truck washing and 25-yr storm at same time:
Volume of wash water =
2400
gallons
Stormwater (25-yr,24-hr) =
2337.5
gallons
(on pad and into tanks)
(assume tank open during rain ever
Stormwater collected in Tank #1 itself =
617.1
gallons
Stormwater collected in Tank #2 itself =
617.1
gallons
f
.—�.
_
Total Volum_e of water managed in tank #1=
5971.7
gallons
Is volume of water managed in tank #1 during rain event < tank design capacity?
YES
_
If tank #1 were to completely overflow into Tank #2, is capacity of #2 OK?
YES
Estimated frequency of removal of accumulated sediment and water in tank #1:
Assumes no rainfall
Assume sediment accumulated "Flocs" from water column
3.6
days --
Estimated frequency of removal of accumulated sediment and water in tank #2:
Assumes no rainfall I
Assume sediment accumulated "flocs" from water column
2.5
Idays
--
—_—i
Frequency to remove sediment and water after 25-yr, 24-hr storm and Truck Wash
Tank #1 = 1.4
days
1.0
days
ALL SOLIDS MANAGED AS NON -HAZARDOUS WASTE
__
ALL SOLIDS DISPOSED OF AT LOCAL LANDFILL
r
0
a

Freeboard
—
Total Volume of water managed =
--
5971.7
-
gallons
798
cubic feet
Tank 1
length
7.5
feet
(width _
22
feet
height
7
feet
Tank2
— ---
----- —
—
--
_
_
length
7.5
feet_
wdith
22
feet
height
5
feet
Assume water flows freely between tanks
330
cubic feet/foot
How far up the side will the water come?
2.42
feet

Determination of Berm Height for Sand Stockpile
Estimated surface area of Sand Stock Pile =
Rainfall, Asheville, 25-yr, 24-hr storm =
(figure 8.03k)
Curve Number:
Soil Group =
Using Table 8.03(b), Assume CN =
Runoff Depth (Table 8.03c) =
Total volume of runoff from #57 stockpile =
(10-year storm)
Site has a V shaped 2% grade around the stockpile
Find the Volume of the depressed area (triangular prism)
Volume = 0.5'width'height" length
height=0.02`(wi dth/2)
Volume = 0.005'baseA2`length
Volume Prism = 607.5 cubic feet
Assume sand has a 30% Void Volume
182.25 cubic feet
Remaining Volume = Total Volume - Prism Volume
Remaining Volume = 875.25 cubic feet
Depth = Remaining Volume / Area / % Void
Depth = 1.080556 feet
12.96667 inches
Total Water Height at Center Line = Prism Height + Depth
Total Water Hieght at Center Line =
1.530556 feet
18.36667 inches
Minimum Freeboard =
0.3 feet
3.6 inches
Minimum Height = Center Line + Freeboard
1.830556 feet
21.96667 inches
by
6 inches
B
2700 square feet
45 feet wide
60 feet long
89 (worst case, newly graded w/gravel)
4.7 inches
1057.5 cubic feet
7910.1 gallons
Prism Height = 0.450 feet
5.4 inches
So a Crusher Run Aggregate berm 23 inches from the lowest point will contain a 25 year storm
North Carolina Erosion and Sediment Control Planning and Design Manual -
6.20 - Temporary Diversions
07/25/05 Phone Conversation with Ken Pickle

Determination of Berm Height for #57 Rock Stockpile
Estimated surface area of #57 Washed Stone = 5400 square feet
60 feet wide
by 90 feet long
25-yr, Asheville, 24-hr storm event =
(figure 8.03k)
Curve Number:
Soil Group =
Using Table 8.03(b), Assume CN =
Runoff Depth (Table 8.03c) =
Total volume of runoff from #57 stockpile =
(I0-yearstorm)
Site has a V shaped 2% grade around the stockpile
Find the Volume of the depressed area (triangular prism)
Volume = 0.5'width'height'length
height=0.02'(width/2)
Volume = 0.005'baseA2'length
Volume Prism = 1620 cubic feet
Assume #57 Rock has a 40% Void Volume
648 cubic feet
Remaining Volume = Total Volume - Prism Volume
Remaining Volume = 1467 cubic feet
Depth = Remaining Volume / Area / % Void
Depth = 0.679167 feet
8.15 inches
Total Water Height at Center Line = Prism Height + Depth
Total Water Hieght at Center Line =
1.279167 feet
15.35 inches
Minimum Freeboard =
0.3 feet
3.6 inches
Minimum Height = Center Line + Freeboard
1.579167 feet
18.95 inches
6 inches
89 (worst case, newly graded w/gravei)
4.7 inches
2115 cubic feet
15820.2 gallons
Prism Height = 0.600 feet
7.2 inches
So a Crusher Run Aggregate berm 20 inches from the lowest point will contain a 25 year storm
North Carolina Erosion and Sediment Control Planning and Design Manual -
6.20 - Temporary Diversions
07/25/05 Phone Conversation with Ken Pickle

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TOPOGRAPHIC SURVEY
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\ JUNE 21. 2006
SURVEY BY:
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Berm Height for the Sand Stockpile: Note, this calculation assum
triangular prism and the base of the prism is at ground level. The er
hour storm. Then, he calculates the water that can be contained in
the surface of the ground and will be contained by berms. These be
then determines the necessary height of the berm by determining th,
be contained in the cube)
Prism of Sand
Area of the Base of the prism 2,700 ft2
Volume contained by the prism 608 ft'
%Void Space in prism 30% %
Void Space in prism (water volume) 182.25 ft'
Dimensions
Length 60 ft
Width 45 ft
Height: Depth of the Depression 0.45 ft
Slope of Depression Containing Water 2%
Runoff Volume
P = Rainfall (25-year, 24-hour storm)
6 inches
CN = Curve Number
89 (unitless)
S = Soil Storage
1.24 inches
Q = Runoff Volume (depth)
4.74 inches
Q = Runoff Volume (depth)
0.39 feet
Q = Runoff Volume: MUST CONTAIN
1,065 ft'
Q = Runoff Volume: MUST CONTAIN
7,971 gallons
Containina the Water
Volume Must Contain
1065 ft'
Volume Contained in Sand in Prism
182 ft'
Volume not Contained in Sand in the Prism
883 ft'
Area of the Pile
2,700 ft'
Depth of Water above the Prism
1.09 ft
Depth of Water above the Prism
13.08 inches

ies that the pile is on top of a ditch. The bottom of the ditch forms the top of a
igineer first calculates the volume of water that must be contained by the 25-year, 24-
void volume of this prism. The remaining volume of water must be contained above
!rms will form a cube -shaped volume on top of the upside-down prism. The engineer
e void volume of the sand in this shape (which is equal to the volume of water that can
Height = (0.02)`(0.5)(W) (triangular prism, the triangle only uses half of the width)
Verified on precipitation data server
provided (& reasonable)
=1000/CN-10
=(P-.2S)2/(P+.8S)
conversion
=Runoff depth x area
conversion
(This is a box -shaped volume)

Berm Height for the Rock Stockpile: Note, this calculation assum
triangular prism and the base of the prism is at ground level. The er
hour storm. Then, he calculates the water that can be contained in �
the surface of the ground and will be contained by berms. These be
then determines the necessary height of the berm by determining th,
be contained in the cube)
Prism of Sand
Area of the Base of the prism 5,400 ft'
Volume contained by the prism 1,620 ft'
%Void Space in prism 40% %
Void Space in prism (water volume) 648 ft'
Dimensions
Length 90 ft
Width 60 ft
Height: Depth of the Depression 0.6 ft
Slope of Depression Containing Water 2%
Runoff Volume
P = Rainfall (25-year, 24-hour storm)
6 inches
CN'= Curve Number
89 (unitless)
S = Soil Storage
1.24 inches
Q = Runoff Volume (depth)
4.74 inches
Q = Runoff Volume (depth)
0.39 feet
Q = Runoff Volume: MUST CONTAIN
2,131 ft'
Q = Runoff Volume: MUST CONTAIN
15,942 gallons
Containina the Water
Volume Must Contain
2131 ft'
Volume Contained in Sand in Prism
648 ft'
Volume not Contained in Sand in the Prism
1483 ft' .
Area of the Pile
5,400 ft2
Depth of Water above the Prism
0.69 ft
Depth of Water above the Prism
8.24 inches

ies that the pile is on top of a ditch. The bottom of the ditch forms the top of a
igineer first calculates the volume of water that must be contained by the 25-year, 24-
void volume of this prism. The remaining volume of water must be contained above
!rms will form a cube -shaped volume on top of the upside-down prism. The engineer
e void volume of the sand in this shape (which is equal to the volume of water that can
Height = (0.02)`(0.5)(W) (triangular prism, the triangle only uses half of the width)
Verified on precipitation data server
provided (& reasonable)
=1000/CN-10
=(P-.2S)2/(P+.8S)
conversion
=Runoff depth x area
conversion
(This is a box -shaped volume)

10,000
9,000 —
8,000 —
7,000 —
6,000 —
N
C
m
5,000 —
C9
4,000 --
3,000
2,000 —
1,000 —
0
0.0
Truck Pad Recycle,
Tank Volumes Over Time
20.0 40.0 60.0 80.0 100.0 120.0 140.0
Days
+Tank #1 Total Volume M Tank #1 Capacity —*— Tank #2 Capacity
160.0 180.0

F WATF
�O 90 Michael F. Easley, Governor
0 William G. Ross Jr., Secretary
r- North Carolina Department of Environment and Natural Resources
O Y k Alan W: Klimek;•P: E: Director
Division of Water Quality
September 12, 2006
Mr. Milton Lane, EHS Manager
APAC Southeast
POB 127
Greenville, South Carolina 29602
h S E" P 1 5 2006
V.A-1ER QUALITY SECTIC1v
AS. i7'JIU_F PFC3'0;.-AI OF
Subject: Return of NCG140000 NOI #1126
APAC Southeast new Asheville Plaint
Buncombe County
Dear Mr. Lane:
On September 7, 2006, 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 new location in Asheville. Your submittal contained a check for $80, one transmittal letter,
one NOI form, one location map, three sets of calculations, three different site layout drawings,
and an erosion controls details drawing. The submittal is significantly deficient, and we are
returning it unprocessed.
The submittal is deficient in the following particulars.
The 11" x 17" site plan is illegible as presented. Whatever relevant information the original
full size color drawing may have contained has been lost in your presentation of a reduced,
black and white copy.
The Topographic Survey by ECR, presumably presented as your stormwater control site
plan, is illegible in part, incomplete in presenting the information relevant for our review,
and apparently in error as to direction of surface water flow.
Item 14 of the NOI requires the submittal of three sets of application documents. Your
submittal did contain three sets of calculations, but we require three complete sets of
submittal documents.
Please consider that as reviewers, we can't tell from the site plans whether the measures you
are proposing are sufficient, or not, because the drawing does not present a complete picture of
the site with respect to our items of interest in a review. Specifically: we must know where the
wastewater and stormwater discharge points are, if any. We must know where the wastewater
flows originate - - the areas of the site are not labeled so that we can identify where
wastewater originates (for most ready mix sites we need to see the aggregate piles, the rinse
off stations, the drum wash out stations, the recycle system, the recycle system overflow
piping, and the batch plant.) We must be able to identify by inspection of topography the
drainage area boundaries so that we can confirm that your proposed measures indeed capture
all of the stormwater and wastewater from the site.
DWQ cannot provide coverage under general permit NCG140000 based on the submitted
information.
o` hCarolina arrallY
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 Phone [phone] Customer Service
Internet: www.mwateroualitv.ore Location: 512 N. Salisbury St. Raleigh, NC 27604 Fax [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycled/10 % Post Consumer Paper

Mr. Milton Lane
Page 2 of 2
September 12, 2006
Sincerely,
Ken Pickle
DWQ Stormwater Permitting Unit
[phone]x584
ken. oickleCa)ncmai1.net
Enclosures: Returned application package
cc, letter only: Adam Gribb, RTP Environmental Assoc., 1900 S. Hwy 14, Greer, SC 29651
DWQ Asheville Regional Office
SPU County Return Files.- Buncombe County

NCG 140368-APAC Asheville
Subject: NCG 140368-APAC Asheville
From: Kelly ,Johnson <kelly.p.johnson cr ncmail.net>
Date: Wed, 14 Feb 2007 09:54:00 -0500
To: Laurie Moorhead <[e-mail]>, Starr Silvis <[e-mail]>
Starr & Laurie,
We have received an application for coverage under NCG14 from APAC Asheville for a
ready mix operation at the intersection of I40 & I26 in Asheville. The area drains
to Lake Ashnoca, Class C. The applicant chose to provide calculations showing that
he can contain the 25-year, 24-hour storm. As shown on the attached facility map,
there are two raw material piles, sand and rock, and a recycle system for washing
the trucks which uses two rectangular recycle tanks. The stormwater that is not
either recycled or contained by berms around the raw material piles drains to a
single drain inlet located near the sand stock pile. I worked through the
applicant's calculations to verify that the 25-year storm is contained around the
raw material piles and the recycle tanks. They appear to be correct.
Does the Asheville Regional office object to issuing this permit? If not, I will
issue it after 30 days.
Note that I have also attached the calculations (I don't know if you typically
review those or not). I got basically the same numbers, but found at least one
error on the tank recycle system in the application. However, this resulting in
over -sizing one of the tanks.)
Thanks,
Kelly
NCG 140368_APAC Asheville Application.pdf Content -Type: application/pdf
1 Content -Encoding: base64
NCG 140368_APAC Asheville Map of Facility.pdf Content -Type: application/pdf
Content -Encoding: base64
Content -Type: AC Asheville Calcs2.xls application/vnd.ms-excel
NCC 140368 AP
Content- Encoding: base64
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