NCG500111_Regional Office Historical File Pre 2018

LT W-V WA
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, in, Secretary
COlen H. Sullins, Director
July 23, 2007
Paul Vinay
Duff -Norton
P.O. Box 7010
Charlotte, NC 28241-7010
Subject: Renewal of coverage / General Permit NCG500000
Duff -Norton
Certificate of Coverage NCG500111
Mecklenburg County
Dear Perinittee:
In accordance with your renewal application [received on November 28, 20061, the Division is
renewing Certificate of Coverage (CoC) NCG500111 to discharge under NCG500000. This Co C is issued
pursuant to the requirements of North Carolina General Statue 143-215.1 and the Memorandum of
Agreement between North Carolina and the US Environmental Protection agency dated May 9, 1994 for as
subsequently amended].
If any parts, measurement frequencies or sampling requirements contained in this General Permit are
unacceptable to you, you have the right to request an individual permit by submitting an individual permit
application. Unless such demand is made, the certificate of coverage shall be final and binding.
Please take notice that this Certificate of Coverage is not transferable except after notice to the
Division. The Division may require modification or revocation and reissuance of the certificate of coverage.
Contact the Mooresville Regional Office prior to any sale or transfer of the permitted facility.
Regional Office staff will assist vou in documentinL)r the transfer of this CoC.
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 the requirements of the General Permit, please cont ct Nina
McKay t919 733-5083, extension 595 or i&rnes. mckayCd)ncrnail.net1. —#Votwov.
1?1�WNAUM=WRC% '
Sincerely, [,W X' NE0MAL OF1 ',d
RCIECEIVED
k"?2'
JUL 2 62007
for Coleen H. Sullins
cc: Central Files
NPDES file NATO if If I A MR
I I 1 11 ` 11171 la w1wfFA, a 0 am
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
512 North Salisbury Street, Raleigh, North Carolina 27604 N hCarolina
"'�u '
Phone: [phone] / FAX [phone] / Internet: www.ncwaterquality.org
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/1 0% Post Consumer Paper

®
to recei
- 4.1--
GENERAL PERMIT NCG
uthorized to discharge Non -contact Cooling "Water & Condensate from a facility
Duff=Norton
9415 Pioneer Avenue
Charlotte
Mecklenburg County;
e of coverage shall become effective August 1,
y duly 232007.
leroa.
1 G11fir "G11VI Al 1. VIL 1111 U.
for Coleon H. Sullins, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit. NCG5 }011 1
InspecUon Date: 08/30/2011
ecord ee
Comment:
Effluent Sam 1's
Is composite sampling flow proportional?
Is sample collected below all treatment units?
Is proper VOlUme collected?
Is the tubing clean`
Owner - Far;H4: Duff -Norton
Inspection Type: Compliance Evaluation
Yes No NA N
Yes No FAA NE
Cl
IN 0 0
0 0 in I
0000
n fi = n
is the facility sampling performed as required by the permit (frequency, sampling type representative)? 0000
Comment:
nt:
Page # 4

NPD S yr/mo/day Inspection Type
NCG500111 11 12� 11/08/ 30 17 18� �
Section C �ssrnar cfindin Icmrnents {Attach acldiiicana[ sheets of narrative and checklists as necessary)
rage ## 2

Permit: NCG500111 Owner -Facility; puff -Norton
Inspection Date; 11/0312015 lnsp ion `type: Compliance Evaluation
Effluent SaM2Lin_q Y s Lo N6 PIE
Is composite sampling flow proportional? 11 0 Is 11
Is sample collected below all treatment units? 0 0 1313
Is proper volume collected? © 0 11 0
Is the tubing clean? 1:1 El 0 13
Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees El 0 11 C
Celsius)?
Is the faculty sampling performed as required by the permit (frequency,, sampling type IN Q 11
representative)?
Comment: Last discharae was on 111/ fit Sheaf environmental sa led: PH Temperature, total
residual Chlorine and COD.
Page# 4

Permit: NCG500111 Owner - Facility; Duff -Norton
Inspection Date: 11/0312015 inspection Type: Compliance Evaluation
Permit Yes Ng, NA NE
(if the present permit expires In 6 months or less). Has the permittee submitted a new ❑
application?
Is the facility as described in the permit? 11 ❑ ❑ ❑
## Are there any special conditions for the permit? ❑ 9 ❑ ❑
Is access to the plant site restricted to the general public? 0 ❑ ❑ ❑
Is the inspector granted access to all areas for inspection? 0 Cl ❑ ❑
Comment. The last time this facilityfacilily has discharged is 201Z This discharge is from an air compressor,
cooling unit. The unit is no last gr used in the facility . Facifi is looking to remove the unit
and to rescind this 2ermit.
Retard K222ing Yes No bLA NE
Are records kept and maintained as required by the permit? M Cl ❑ ❑
Is all required information readily available, complete and current? 11 Q ❑ ❑
Are all records maintained for 3 years (lab. reg. required 5 years)? 11 ❑ ❑ ❑
Are analytical results consistent with data reported on DMRs ❑ Q 11 ❑
Is the chain -of -custody complete? ❑ Cl 11 ❑
Cates, times and location of sampling ❑
Name of individual performing the sampling ❑
Results of analysis and calibration ❑
Cates of analysis ❑
Name of parson performing analyses ❑
Transported COCs ❑
Are DMRs complete; do they include all permit parameters? ❑ El 11 ❑
Has the facility submitted its annual compliance report to users and CQ? ❑ ❑ IN ❑
(if the facility is = or > 5 MGC permitted flow) Do they operate 24/7 with a certified operator ❑ ❑ 11 ❑
on each shift?
Is the ORC visitation log available and current? ❑ ❑ 11 ❑
Is the ORC certified at grade equal to or higher than the facility classification? ❑ ❑ M ❑
Is the backup operator certified at one grade less or greater than the facility classification? ❑ ❑ 11 Q
Is a copy of the current NPCES permit available on site? In (1 ❑ ❑
Facility has copy of previous year's Annual Report on file for review? © ❑ In ❑
Comment:
Effluent Sampling Yes ,No M NE
Page#r 3

NP€?ES yrlmotday Inspection Type 1
1 NCG500111 11 16/11/03 1 17 1
Section D: Summary of Finding/Comments (Attach additional shuts of narrative and checklists as necessary)
Page##

United States EnVironmental Protection Agency
Washington, D.G. 20460
Water Compliance Inspection Report
Transaction Code NPDES yr/moiday Inspection Type Inspector Fac Type
I itj 2 In 1 3 NCG500111 Ill 12 1151,110, 11 7 18 Li
SJ 19 1 � 1 20 (j
r_j 1 Lj
211, 11, 1 1 1 1 1 1 1 11 1 1 1 1 1 1 1 1 1 1 1
Inspection Work Days Facility Self -Monitoring Evaluation Rating B1 QA
67 1'0 70 71 [„_j 72 731 1 174 75
1 1 1 1 1 1
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to P0TW, also include Entry Time/Date Permit Effective Dal
PO TW name and NPOES oermit Number) 1035AM 15/11103 15/10121
Duff -Norton
9415 Pioneer Ave Exit TtmelDate Permit Expiration 11,
Charlotte NC 29232 11:25AM 16111/03 20/07/31
Name(s) of Onsito Representative(s)frittes(s)/Phone and Fax Numberis) Other Facility Data
Paul M Vinay/1704-916-5591 /7045880516
Name, Address of Responsible Official/Tille/Phone and Fax Number
Contacted
Paul M Vtnay,PO Box 7010 Charlotte NC 28241/1704-916-569117045880616
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit 0 Records/Reports Self -monitoring Program 11 Facility Site Review
Effluent(Receiving Waters 11 Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
Or! A Tuvia MRO WQ//704-663-1699/
$lgnat a cifM ago tOAR to Agency/office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

PAT MCCRORV
Gov&nw
DONALD R. V) 6AUB
Environmental
Quality
November 5, 2015
Mr. Paul inay
Duff -Norton, Inc.
9415 Pioneer Avenue
Charlotte, NC 28
Subject: Compliance Evaluation Inspection
Duff -Norton, Inc.
NPDES Permit No. NCG5001 It
Mecklenburg County
Dear Mr. Vinay:
the subject facility on November 3, 2015 by Mr. Ori Tuvia. Your cooperation during the site visit
was much appreciated.
As was discussed onsite, in order to get your permit rescinded you will need to get the unuses
air compressor unit disconnected, get a Division of Water Resources inspector to visit and approve
that the air compressor unit was disconnected and then send a written request to rescind the permit to
the following address:
Division of Water Resources, WQ Permitting Section — NPDIES, 1617 Mail Service Center, Raleigh,
NC 27699-1617
Attention: John Hennessy, Supervisor
The report should be self-explanatory; however, should you have any questions concerning tI
report, please do not hesitate to contact Ori Tuvia at [phone], or at,ori.tuviardrieddenngay.
Sincerely,
Michael L. Parker, Regional Supervisor
Mooresville Regional Office
Water Quality Regional Operations Section
Division of Water Resources, DEQ
Enclosure:
Inspection Report
cc: MSC 1617-Central Files/Basement
Mecklenburg County Health Department
Mooresville Regional Office
Location; 610 Fast Center Ave,, Suite 301 Mooresville, NC 28115
Phow [phone]\ Fax, [phone] \Customer Service: 1-877-623-6748
Internet: www.newaterquality.otg

PAT MCC
DONALD R. VAN DER V
Water Resources S. JAY ZIMME]
ENVRONMENTAL QUALITY
RECENEDIt
February 10, 2016
Mr. John Stewart
Duff -Norton, Inc. MO(�RESVILLE i
P.O. Box 7010
Charlotte, NC 28241-7010
Subject:Rescission of Certificate of Cov
NCG500111
Duff -Norton
Mecklenburg County
Dear Mr. Stewart:
Division staff has confirmed that the subject Certificate of Coverage
is no longer required. Therefore, in accordance with your request, NP]
CoC NCG500111 is rescinded, effective immediately.
If in the future your company wishes to discharge wastewater to th(
State's surface waters, it must first apply for and receive a ne�
NPDES permit.
If you have any questions concerning this matter, please contact Charl(
Weaver at [phone] or via e-mail [[e-mail]].
S, cerelyZ
n '� I I
0 or S. Jay Zimmerman or
r Div1 si a;Resources
Division of Wat
cc.
NPDES Unit
Teresa Revis Budget
hlftp://portal.nedenr.org/web/wq

SOC PRIORITY PROJECT: Yes No x
If Yes, SOCK No,
To. Permits and engineering Unit
Water Quality Section
Attention: Charles Weaver
Date: May 9, 2007
NPDES STAFF REPORT AND RECOMMENDATION
County- Mecklenburg
M O## 07-1
Permit No, NCG550111
PART I - GENERAL INFORMATION
I . Facility and Address; Duff -Norton
9415 Pioneer Avenue
Charlotte, North Carolina 28273
33
2. Date of Investigation: May 3 2007
3, Report Prepared By- Samar Bou-Ghazal , Env. Engineer 1
4. Persons Contacted and Telephone Number: Mr. Paul V nay, Manager, Tel # (704) 91 - 591.
. Directions to Site; From Mooresville, travel 1-77 South toward Charlotte. Take exit #
6B/NC-49 South toward. South Tryon Street. Turn Right on South Tryon Street and
travel 4.8 miles to the intersection With Westinghouse Blvd. Turn left. on Westinghouse
Boulevard and travel approximately 0.2 miles to the intersection with Pioneer Avenue.
Turn left can Pioneer Avenue and travel approximately '0.1 Haile to site located on the
right.
o, Discharge Points). Lit for all discharge points:
Latitude. 3 °07'43" Longitude: 0°56' 10"
Attach a U.S.G.S. map extract and indicate treatment facility site and discharge point on
map.
U.S.G.S. Quad No.: G 15 NW U.S.G.S. Name. Charlotte West, N.C.
7. Site size and expansion are consistent with application? Adequate land available for
expansion if necessary.

ciiscnarge iocation.
10. Receiving stream or affected surth,
a, Classification: C
est dwelling is great(
aters: U.T. to Coffee
ESCRIPTION OF DISCHARGE AND TRE
j P't
Possible
,ressor coming.
seat capacity of the current facili,
es- No
S
treatment facility? N/A
design capacity)? N/A
kuthorizations to
reek.
ovide a description of proposed wastewater treatment facilities: N/A
toxic impacts to surface waters: Biocide is not used at the facility.
ient Program (POTWs only): N/A
and Disposal Scheme: N/A
classification (attach completed rating sheet): no rating
'49
es: 14

c
t
c
f
ITT III - OTHER PERTINENT INFORMATION
Is this facility being constructed with Construction Grant Funds or are any public monies
involved (municipals only)? N/A
Special monitoring or limitations (including toxicity) requests: /
Important SOC, JOC or Compliance Schedule dates: (please indicate); N/
Air Quality and/or Groundwater concerns or hazardous materials utilized at this facility
that may impact water duality, air quality, or groundwater. No AQ or GW concerns near
are hazardous materials utilized at this facility.
RT IV - EVAL T1ATION AND RECOMMENDATIONS
The applicant has requested permit renewal to continue the discharge of non -contact
fling water. The condensate from the main air compressor discharges to the sanitary sewer
tem. The condensate from the backup air compressor is discharged into a conveyance leading
�offee creep. According to Mr. Vinay, the backup compressor is only used when the main
npressor is down. Also, it should be noted that outfalls 2,3;and q are condensate from air-
zdtioning used at the facility and discharge approximately one gallon per day into a`
ivyance ditch.
Pending review and approval by P&F, it is recommended that the permit be reissued.
}nature of Repot prer
rf ce Water Protection. Regional Supervisor
to�..�.�. ..�_.._.

A,, .
f!
0 ,1 01S -I
�j ii ,
a tion for uff rt ' Permit
) 111 As required, the original package
,t me at the above number.
r,
100
nay
Manager
ton
T�P-'IDES
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NCDENR
North Caroline Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley,`Governor William G. Ross, Jr., Secretary
Alan W. Klimek, P.., Director
NOTICE OF RENEWAL INTENT
Application for renewal' of existing coverage 'under general Permit l` CG500000
Existing Certificate of Coverage (CoC)s NCG500JLI
(Please print or type)
1.) Mailing address* of facility owner/operator:
Company Name
Owner Name
Street Address � � _ >` c�� r• �� "�' 1 �r
City State ZIP Cade
Telephone Number LL Fax:
Email address
Address to which all petsnit correspondence should be mailed
) Location of facility producing discharge:
Facility Name _.. l'l r to
Facility Contact
Street; Address
City cse State .nZIP Code
County
Fax -
Email address
:) Description of Discharge
a) Is the discharge directly to the receiving stream? 0 Yes o
(if no, submit a site map with the pathway to the potential receiving waters clearly marked. This includes tracing the pathway of the
storm sewer to the discharge point, if the storm sewer is the only viable means of discharge.)
b) Number of discharge outfalls (ditches, pipes, channels, etc. that convey wastewater from the property):
c) What type of wastewater is discharged? Indicate which discharge points, if more than one.
on -contact cooling water Outfall(s) #:
.2-
0 Boiler Slowdown Outfall (s) #:
Page 1 of

NCG5000on -
N�-Aluwztlt Uppnea '14
ing Tower Blowdown Outfall (s) #:
lensate Outfall (s) #:
!1. Outfall (s)
Ise describe "Other")
of disebarge per each discharge point (in GPD):
#002: #003: #004
(if applicable, use separate sheet): 11 _1_. — V" Vauju'U'Ut', per eacri separate discharge
lorine 0 Biocides El Corrosion inhibitors 0 Algaecide 0 Other
mle
box in item (4) above [other than Nonej was checked, a completed Biocide 101 Form and
racturers'informnt.inn +h-
Aquatic Toxicology unit
1621 Mail Service Center
Haleikb, NC 27699-1621'
6) Is there any type of treatment being provided to the wastewater before discharge (Le,, retention ponds,
settling ponds, etc-)? Dyes F9,N`6­
(if yes, please include design specifies (j,e,, design volume, retention time, surface area, etc,) with submittal package. Existing
treatment facilities should be described in detail,
7) Discharge Frequency:
a) The discharge is: Cl Continuous EWf aterm ittent El Seasonal*
i) If the discharge is intermittent, describe when the discliarge, will occur:
ii) *Check the rnontb(s) the discharge occurs: 0 Jan 0 Feb 0 Mar, 0 Apr 0 May 0 Jun o Jul
0 Aug. Cl Sept. 0 Oct. 0 Nov. 0 Dec.
b) How many days per week is there a discharge?
c) Please check the days discharge occurs: Fi'nSat. 0 Sun. L4'Mon. cue. Ved. 2-Thu. 4if-Fti.
8) Receiving urea [s]:
a) To what body or bodies of water (creek, stream, river, lake, etc.) does the facility discharge
wastewater? If the site discharges wastewater to a separate to a sewer system WS), name the
operator of the 4S (e.g. City of Raleigh). u
b) Stream Classification:
I
Page 2 of 3

NCG500000 renewal application
Additional Application Requirements
The following information must be included in triplicate [original + 2 copies] with this application or it will
be returned as incomplete.
Site map. If the discharge is not directly to a stream, the pathway to the receiving stream must
be clearly indicated, This includes tracing the pathway of a storm sewer to its discharge paint.
Authorization for representatives. If this application will be submitted by a consulting
engineer (car engineering g firm.), include documentation from the Permfttee showing that the
consultant submitting the application has been designated an Authorized. Representative of the
applicant.
Certification
I certify that I am; familiar with the information contained in this application. and that to the best of nay
knowledge and belief such information is tare, complete, and. accurate.
Printed Name of Person Signing: g:
(Signature ofApplicfant) ("Date Signed,)
North Carolina General Statute 143-21.5.E h (i provides that:
Any person who knowingly makes any false statement, representation, or certification in any application, record, report, plan or ether document
filed or required to be maintained under Article 21 or regulations of the Environmental Management Commission implementing that Article, or who
falsifies, tampers with or knowingly renders inaccurate any recording or monitoring device or method required to be operated or maintained under
Article 21 or regulations of the Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by
a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a tine
of not more than $25,000 or imprisonment not more than 5 years, or both, for a similar offensel
This Notice of Renewal Intent does NOTffeurn ante f �
T mlit d fa ll #read xn annul fee for coo ra` a under NCG500000.
Mail the original .and two copiesof the entire package, to
.fir. Charles H. Deaver
C DENR DW / NDE
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Page 3 of

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USGS Topographic Map
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Ref USttS T5 Minute Series Topographic Map, Wrest Charlotte, North Carolina
Charlotte„ NC Quadrangle, dated 1968, photorevised 1980.
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SIC Quadrangle, dated 1968, phutorevised 1980: Scale; NTS1°
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NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Floss, Jr,, Secretary
Alen W. Klimek, P.E., Director
November 15, 2006
Bill Macey
Yale Industrial Products
P.O. Pox 701.0
Charlotte, NC 28241
Subject: NPDES Permit NCG500000 renewal
Certificate of Coverage (CoC) NCG500111
Duff Norton Company
Mecklenburg County
Dear Permittee:
The facility listed above is covered under NPDES General Permit N'CG500000. NCG,500000 expires
can duly 31, 2007. Federal (40 t}FR 122.41) and North Carolina (15A NCAC 211.01.05(e)) regulations require
that permit renewal applications must be filed at least180 days prior r to expiration of the current permit. if
you have already mailed a renewal request;, you ' may disregard this notice.
To satisfy this requirement, the Division must receive a renewal request postmarked no later than
Fehr r 1 2007. Failure to request renewal by this date may result in a civil penalty assessment Larger
penalties may be assessed depending upon the delinquency of the request. This renewal notice is being seat
well in advance of the due date so that you have adequate time to prepare your application.
If any discharge previously covered under NCG500000 will occur after July 31, 2007, the
CoC must he renewed. Discharge of wastewater without a valid permit it would violate North Carolina
General Statute 148-215.1; unperai fitted discharges of wastewater may be assessed civil penalties of up to
: 5,000 ;per day.
If all discharge has ceased at your facility and you wish to rescind this CoC [or if you have other
question,-,], s], contact one at the telephone number or e-mail address listed below.
Sincerely„
t
Charles H. Weaver, Jr.
NPDES :Unit
cc Central Files
Mooresville Regional Office, Surface Water Protection
NPDES File
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 On
512 North Salisbury Street, Raleigh, forth Carolina 27604 (i thCarofina
Phone: [phone], extension 511( FAX 919 733•07191 [e-mail]
et
An Ear al Opportunity/Affirmative Action Employer - 50% l ecyled/10% Post Consumer Paper

17
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HCDENR
6 wn wnw.xx+.p Nmwv. kYeaa+xhn
ATOR111 CAROMNA DIVISION
Rei4sed No veinber 2006
C21 ra e Under 'fi"his Permit
OF
—for CoC
*
W4T R QU4LITY
reneivalas ONLY
All samples should :be collected before the effluent
loins or is diluted by any other wastestream, body of
This permmt covers the following types of discharges:
water or substance. (fart 1.1 Section D:1)
The pernuttee Shall live notice to the Division of any
• Non -contact cooling water and water used in
planned physical alterations or 'additions to the
industrial processes for the sole purpose of cooling
system that could significantly increase the quantity
machinery and other equipment, Contact coaling
of pollutants discliarged or introduce new pollutants
water discharges require an individual NPDES
to the discharge. (Part 11, Section E:3)
permit.
•
Any exceedances of the permit hunts must be
• Condensate wastewater from atmospheric cooling
reported to the Division within 24 hours from the
systems (air conditioners, etc.)
time the pernintee becomes aware of the
• 1 lowdown wastewaters, ltlowdown is defined as
circumstances. (Part 11, Section 13:6)
the inininnim discharge of recirculating water for
the purpose of discharging materials contained in
the 'water, the further buildup of which would cause
Fre uentl Asked uestions
concentration in amo unts exceeding limits
established by best engineering practice,
1)
Do 1 need to submit the monitoring results
• Exempt stoic water, which is defined as discharges
annually?
of Stoma Ater that do not require permits under the
No. The Submission of monitoring reports for this
state or Federal NPDES programs. Exempt
permit is not required. There are no standardized
storixnwatet includes stortinvat r which accumulates
Discharge Monitoring Reports (1)M1ts) :associated
in outdoor basins or ponds designed for codling
with this permit. All monitoring results should be
water or other waters covered by this permit,
kept on site for three years. The Division may
m Water associated with hydroelectric power facilities,
request these reports for review at any time. (Part 11,
including cooling, waters, waters from sumps and
Section E:1) however, as per fart 11, Section L';F.b,
chains, dram seepage and exempt stormwater.
violations of any permit limitation must be reported
• Other similar wastewaters that may qualify" for
within 24 hours from the time the permittee bec:ornes
coverage under this General Permit.
aware of the circumstances.
Stearn generating facilities are not eligible for coverage
2)
Do I need to employ a certified wastewater
finder this general permit,
treatment plant operator to manage and run the
System?
Not - at this tinie. The Division's Technical
Chan a libel to a ear in Reissued ienc al Perxtdt
Assistance and Certification Unit sloes not currently
plan to classify these types of facilities for the
General Permits are issued for five year periods. The
purposes of requiring a certified operator. The
current version df NCG +f1{J000 will expire July 31, 2007.
condition regarding operators remains in the permit at
The perri it will be reissued for an additional: five years,
this time in the event that these facilities are
expiring in 2012. Several important changes in the new
classified in the future. (fart 11, Section C:1)
general permit are:
3)
Where do find my stream classification?
s A "fetal Residual Chlorine limit of 17 1Eg/L [trout
The stream classification, i.e. S-IV, t:, Tr, etc. can
waters, ero-flow streams], or 28 ltg/L will be added
usually be found in the Certificate of Coverage. If
for all freshwater stream classifications. Currently,
you are unsure of your stream classification, you can
this limit only applies to streanis classified as Trout
contact the: NPDES Emit.
(Tr) waters.
)
Does a certified lab need to be used to analyze
ire i ertiiit ire uirein its
samples?
Yes, a North Carolina certified lab must be used to
• Semi-annual or quarterly effluent monitoringof
perform the sample analysis. The only exception to
parameters specified. in Part 1, Section t1.
this rule is when measuring the value of pff. fill

business changes ?
The Division views changes of name or ownership as
a minor modification and requires the Director's
approval, Name and ownership changes require you
to complete a Name/Ownersbip Change Form. The
fornis are available by contacting the NPDES Unit at
[phone] or may be downloaded from our web
site at: littp://h2o.enr.state.ne.us/NPDES/
Contact Us
For additional infintriation, please contact us at:
N.C. DENR / DWQ / NPDES Unit
1617 Mail Service Center
Raleigh, N.C. 27694-1617
Phone: [phone]
Fax: [phone]
You may also contact your local Regional Office at:
Asheville: [phone]
Mooresville: [phone]
Winston-Salem: [phone]
Raleigh: [phone]
Fayetteville: [phone]
Washington: [phone]
Wilmington. [phone]
The NPDES Unit can be found on the World Wide Web
at:
-I,iLttt?://b2o.enr,state.tic,i.ts/N.1-IDES`/
Copies of the General Permits, technical bulletins,
guidance documents and miscellaneous forms may be
downloaded from the web site.
Another source of infunnation is the DENR Customer
Service Center at 1-877-NC ENR 4 U (1-877-623-6748).
An additional source of information is the North Carolina
Office of Waste Reduction, which can be reached at (919)
571-4100. This Office has specific information on how to
minintize pollutants at various types of industries.

RCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Michael F. Easley, Governor William G. Ross, Jr., Secretary
Alan W. Klimek, P.E., ►irector
November 15, 2006
Bill Mackey
Yale Industrial Products
P.O. Box 7010
Charlotte, NC 28241
Subject: NPDES Permit NCG500000 renewal
Certificate of Coverage (CoC) NCG500111
Duff Norton Company
Mecklenburg County
Dear Permittee:
The facility listed above is covered under NPDES General Permit NCG500000. NCG500000 expires
on July 31, 2007. Federal (40 CFR 122.41) and North Carolina (15A NCAC 2H.0105(e)) regulations require
that permit renewal applications must be filed at least 180 days prior to expiration of the current permit, If
you have already mailed a renewal request, you may disregard this notice.
To satisfy this requirement, the Division must receive a renewal request postmarked no later than
February 1. 2007. Failure to request renewal by this date may result in a civil penalty assessment. Larger
penalties may be assessed depending upon the delinquency of the request. This renewal notice is being sent
well in advance of the due date so that you have adequate time to prepare your application.
If any discharge previously covered under NCG500000 will occur after July 31, 2007, the
CoC must be renewed. Discharge of wastewater without a valid permit would violate North Carolina
General Statute 143-215. 1; permitted discharges of wastewater may be assessed civil penalties of up to
$25,000 per day.
If all discharge has ceased at your facility and you wish to rescind this CoC [or if you have other
questions], contact me at the telephone number or e-mail address listed below.
Sincerely,
L OF F I C E
� It4l
Charles H. Weaver, Jr.
NPDES Unit
NOV
cc: Central Files
NPDES File
"M, rftv
N
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
512 North Salisbury Street, Raleigh, North Carolina 27604 NocoiAhCarofina
Phone: [phone], extension 511 / FAX [phone] / charies,weaver@ncmail,net Nahmallv#
An Equal Opportunity/Affirmative Action Employer - 50% Recycled/10% Post Consumer Paper

State of North Carolina NTWA
2
Department of Environment al if a
and Natural Resources
Division of Water Quality
iL
lffi� M ML
William G. Ross Jr., Secretary 14a0CDE116M06R
Michael . Easley, Governor
F
Alan W. Klimek, P.E., Director NORTH CAROLINA DF.PARTmFNT OF
ENVIRONMENT ANC NATURAL RESOURCES
July 26, 2002
BILL MACKEY
DUFF NORTON COMPANY INC
PO BOX 7010
CHARLOT-M NC 28241
Subject: Reissue - NPDES Wastewater Discharge Permit
Duff Norton Company Inc
COC Number NC6500111
Mecklenburg County
Dear Permittee:
In response to your renewal application for continued coverage under general permit NCG500000, the Division of
Water Quality (DWQ) is forwarding herewith the reissued wastewater general permit Certificate of Coverage
(COC). This COC 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 May 9, 1994 (or as subsquently amended).
The following information is included with your permit package:
* A copy of the Certificate of Coverage for your treatment facility
* A copy of General Wastewater Discharge Permit NCG500000
* A copy of a Technical Bulletin for General Wastewater Discharge Permit NCG500000
Your coverage under this general permit is not transferable except after notice to ?WQ. The Division may require
modification or revocation and reissuance of the Certificate of Coverage. This permit does not affect the legal
requirements to obtain other permits which may be required by DENR or relieve the permittee from responsibility
for compliance with any other applicable federal, state, or local law rule, standard, ordinance, order, judgment, or
decree.
If you have any questions regarding this permit package please contact Aisha Lau of the Central Office Stormwater
and General Permits Unit at [phone], ext. 578
Sincerely,
fi)r Alan W. Klimek, P.E. jul'
cc: Central Files
Storinwater & General Permits Unit Files
Mooresville Regional Office
I Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
4ual Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

art h Carolina
-it of Environment
31 Resources
Vater Quality
Al� IIAM 11 111
Easley, Governor
loss Jr., Secretary NCDENR
'horpe, Ph.D., Acting Director NORTH CAROLINA DWARTMENT OF
ENVIRONMENT AND £
AL RESOURCES
4/23/2002
UL
JPT REQUESTED MAy 0 6 2002
4ACKEY
4ORTON COMPANY
(7010
,OTTE, NC 28241
Subject: NOTICE OF VIOLATION
FAILURE TO SUBMIT RENEWAL APPLICATION
DUFF NoRTON COMPANY
NCG500000
COC NUMBER NC6500111
MECKLENBURG COUNTY
nform you that, as of the date of this letter, the Division of Water Quality has not received a
t after the expiration and has not requested renewal at least 180 days prior to expiration, will be subjected to
-ement procedures as provided in NCGS § 143-215.6 and 33 USC 1251 et. seq,
er to prevent continued, escalated action, including the assessment of civil penalties you must submit a
eted permit coverage renewal application to the attention of the "Stormwater and General Permits Unit" at
terhead address within ten (10) days of your receipt of this letter (renewal application enclosed).
subject discharge has been terminated, please complete the enclosed rescission request form. Mailing
�,tions are listed on the bottom of the rescission request form. You will be notified when the rescission
�s has been completed.
you for your prompt attention to this situation. If you have any questions regarding this matter, please
,t Delonda Alexander of the central office Stormwater and General Permits Unit at 919-733-5083, ext. 584.
Sincerely,
,for Gregory L Thorpe, Ph.D.
Acting Director, Division of Water Quality
Stormwater and General Permits Unit Files
Central Files
118rresville"k6gionat Office"ll-,,,,"
tail Service Center, Raleigh, North Carolina 27699-1617 Telephone [phone] FAX [phone]
Equal Opportunity Affirmative Action Employer 50% recycled/ 10% post -consumer paper

e 0 . M 0 r !
IM. 0►
loward, Jr. P.E., Dlrectbr.
py
141
Subject. Certificat'
Renewal
MoMeddenb
rt
al permit by submitting individual permit application. Unless such demand is made, this certificate
shall be final and binding.
ate of Coverage for your facility; is not transferable except after notice to the Division. Use the enclosed
.e/Ownership Change ge form to notify the Division if you sell or otherwise transfer ownership of the
ity. The Division may require modification or revocation and reissuance of the Certificate of Coverage.
ity ceases discharge of wastewater before the expiration date of this permit, contact the Regional
below at [phone]. Once discharge from your facility has ceased, this permit may be rescinded.
does not affect the legal requirements to obtain other permits which may be required by the ]division of
ity, the Division of Land Resources, Coastal Area Management Act or any other Federal or Local
al permit that may be required.
y questions concerning this permit, please contact the NPDES Group at the address below.
Sincerely,
A. Preston Howard,Jr., P.E.
.l Files_
ffq
5 File
( Assessment Unit
29535, Raleigh, forth Carolina 7 26- (91) -50 3 FAX [phone] p&[e-mail]
lual Opportunity Affirmative Action Employer 60% recycled / 10% post -consumer paper

STATEOF NORTH CAROLINA
DEPARTMENT ENT OF ENVIRONMENT, HEALTH, AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
GENERAL PERMIT NO. NC 5Q L
CERTIFICATE OF COVERAGE NO. NCG500111
O DISCHARGE NON -CONTACT COOLING WATER, COOLING TOWER AND BOILER
BLOWDOWN, CONDENSATE, EXEMPT STORMWATER, COOLING ATE ASSOCIATED WITH
HYDROELECTRIC OPERATIONS, AND SIN41LIARWASTEWATERS ER THE
NAT-IMNALL M AN IJISCHAR I I N SY T I
In compliance with the provision of North Carolina General Statute 143-215.1, ether lawful standards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal Water Pollution Control Act, as amended,
Duff Norton Company
is hereby authorized to discharge
non -contact cooling water, condensate and ether similar wastewaters
from a facility located at
Duff Norton Company
9415 Pioneer Avenue
Charlotte
Mecklenburg County
to receiving waters designated as subbasin 30834 in the Catawba River Basin
in accordance with the effluent limitations, monitoring requirements, and other conditions set forth
in Parts l II, Ill and IV of General Permit No. NCG500000 as attached.
This certificate of coverage shall become effective August 1, 1997.
This certificate of coverage shall remain in effect for the duration of the General Permit.
Signed this"clay ;July 24,1997.
fle�A. Preston Howard, Jr., P.E., Director
Division of Water Quality
By Authority of the Environmental ental Management Commission