NC0004626_Permit (Issuance)_19990920

NPDES DOCVNENT SCANNIM& COVER SHEET
NPDES Permit: NC0004626
Document Type: Permit Issuance`
Wasteload Allocation
Authorization to Construct (AtQ
Permit Modification
Speculative Limits
Staff Report
Instream Assessment (67B)
Environmental Assessment (EA)
Permit
History
Document Date: September 20, 1999
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c.40uteut on the�e 'ee side

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality —
James B. Hunt, Jr., Governor NCDENR
Bill Holman, Secretary
NORTH CAROLINA DEPARTMENT OF
Kerr T. Stevens, Director ENVIRONMENT AND NATURAL. RESOURCES
September 20, 1999
Mr. 13. N. Dickerson
PPG Industries Fiber Glass Products, Inc.
Post Office Box 949
Lexington. North Carolina 27293
Subject; NPDF_S Permit Issuance
Permit Number NCO004626
Lexington Facility
Scotland County
Dear Mr. Dickerson:
In accordance with the application for discharge permit received on February 5, 1998. the
Division is forwarding herewith the subject state - NPDES permit. This permit is issued pursuant,to
the requirements of North Carolina General Statute 145.215.1 and the Memorandum of Agreement
between North Carolina and the U.S. Environmental Protection Agency dated December 6, 1985.
In accordance with your comments on the draft NPDES permit received on May 6, 1999, the
following modifications have been made:
• The monitoring frequency for total suspended residue and fecal coliform has been
decreased from daily to weekly;
• The monitoring frequency for oil 11-Q grease has been changed to monthly: and
• In light of the change in treatment plant classification from IV to III, the monitoring
frequency for BOD, temperature and pl-1 has been changed from daily to 5/week.
You also requested that total residual chlorine monitoring be eliminated. Due to the toxic
nature of residual chlorine, monitoring will be maintained weekly when chlorination is employed (see
footnote 2 on the effluent limitations and monitoring page). Additionally, the weekly monitoring
requirement for nutrients is the result of the Division's current permitting strategy for facilities
discharging into the High Rock Lake watershed. This watershed shows signs of nutrient enrichment
and will therefore be subject to a nutrient management strategy at some point in the future. Until
such a strategy is in place, more stringent monitoring is being required of all discharges into the
watershed.
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within thirty
(30) days following receipt of this letter. This request must he in the form of a written petition,
conforming to Chapter 150E of the North Carolina General Statutes, and filed with the office of
Administrative Hearings, Post Office Drawer 27447, Raleigh, North Carolina 27611-7447, Unless
such a demand is made, this permit shall be final and binding.
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617-TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER-50%RECYCLEW 10%POST-CONStJMER PAPER
}

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 permits which may be
required.
If you have any questions or comments regarding these speculative limitations, please do not
hesitate to contact Mark McIntire at telephone number [phone], extension 553.
Sincerely
O►iginal Signed By
DaVid A. Goodrich
Kerr T. Stevens
Cc: Central Files
NPI)ES Permit File
Winston-Salem Regional Office, Water Quality
Aquatic Toxicology Unit
EPA, Roosevelt Childress

r
Permit No. tNCO004626
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
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,
PPG Industries Fiber Glass Products, Inc.
is hereby authorized to discharge wastewater from a facility located at
Lexington Manufacturing Facility
New Jersey Church Road
Lexington
Davidson County
to receiving waters designated as the North Potts Creek in the Yadkin-Pee Dee River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in
Parts 1, I1, 111 and IV hereof.
This permit shall become effective November 1, 1999
This permit and authorization to discharge shall expire at midnight on June 30. 2004.
Signed this day September 20, 1999
Original Signed By
David A. Goodrich
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit No. NCO004626
SUPPLEMENT TO PERMIT COVER SHEET
PPG Industries Fiber Glass Products, Inc.
is hereby authorized to:
1. Continue operation of an existing 0.6 MGD wastewater treatment facility consisting of a
mechanical bar screen, comminutor, equalization basin, chemical mixing tanks, primary
clarifier, nutrient addition, dual aeration basins, final clarifiers, gas chlorination with chlorine
contact chamber, dual activated carbon adsorption units with phi adjustment, a backwash
equalization basin and sludge holding located at PPG's Lexington manufacturing facility on
new Jersey Church Road in Lexington, Davidson County; and
2. Discharge from said treatment works at the location specified on the attached map into North
Potts Creek which is classified C waters in the Yadkin-Pee Dee River Basin.

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Latitude: W44,18,, Sub-Basin: 03-07-04 "� � " ,n
Location
LowZitude:
Lont?itude: 80 19'32" �' ••°,•;;
ttad #: E17NE
Stream Class: C PPG judustries Fiber Prnducts,Inc.
Receivtn Stream: North Potts Creek T y NCOOD4626
Permitted F `v: 0.6 h[GD ZQ,�tO I,esi:1gton btanufacturing Facility

A (1). EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS - FINAL Permit No. NCO004626
During the period beginning on the effective date of the permit and lasting until expiration, the Permittee is authorized to discharge from outfall(s) serial number 001-
Wastewater Treatment Plant Effluent. Such discharges shall be limited and monitored by the Permittee as specified below:
E FI DENT CHARACTE121STiCS - �, �� ...x ���: `��,.�'�`11=10NiT'ORIIVG REQUIREMEIVTS�,:�.- `�����•,�;.,
-L'-._^,•�?!fs._•r4`;-y� 3.atv.�b`. -"�. ,''• ..+w' .' f• J5 - -, w .; _ ,z_ -. .rH„.. J ,d - ,. °sa
- r easureme-i-M.
'...'rs'ri...- ,4 r.h
i�ailY:.Maxtmum al;requeneyr ,rSam leT e„ ms �.Lo tton;v�
Flow (i%IGD) 0.6 Continuous Recording 1 or E
BOD, 5-Day. 20°C (April 1 —October 31) 157 Ibs/day 314 lbs/day 3/Week Composite E
BOI), 5-Day. 20°C (iovember 1 —A4arch 31) 514 lbs/day 630 lbs/day 5/1=Ueek Composite E
Total Suspended Solids (April 1 —October 31) 105 lbs/day 168 lbs/day Weekly Composite E
'Votal Suspended Solids (November I —March 31) 146 lbs/day 292 lbs/day Weekly Composite E
NH,-N Weekly Composite E
Oil and Grease 30.0 mg/L 60.0 mg/L Alonthiy Grab E
Fecal Coliform (Geometric Mean) 200/100 ml 400/100 ml Weekly Grab E
Total Residual Chlorine Weekly Grab E
Temperature 5AVeek Grab E
l'otal itjeldahl Nitrogen (TKN) Weekly Composite E
t,N0 +NO- Weekly Composite E
Total Phosphorus Weekly Composite E
pH3 3/Week Grab E
Chronic Toxicity T Quarterly Composite E
NOTES:
1 Sample Locations: I —Influent, E. Effluent
5 Monitoring is only required when chlorine is added for disinfection.
13 The pH shall not.be less than 6.0 standard units or greater than 9.0 standard units.
4 Chronic Toxicity(Ceriodaphnia) P/F @ 48%: February, May, August. and November; See condition A(2) of the Supplement to Effluent Limitations and Monitoring Requirements
portion of this permit.
TtiERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR v151BLE FOAM IN OTHER THAN TRACE AMOUNTS.

Permit IIo. NCO004626
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
A (2). CHRONIC TOXICITY PASS/FAIL PERMIT LIMIT (QUARTERLY)
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant mortality to
Ceriodaphnia duhia at an effluent concentration of 48%.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the
"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent
versions or "North Carolina Phase I1 Chronic Whole Effluent Toxicity Test Procedure" (Revised-February
1998) or subsequent versions. The tests will be performed during the months of February, May, August, and
November. Effluent sampling for this testing shall be performed at the NPDES permitted final effluent
discharge below all treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the
permit limit, then multiple-concentration testing shall be performed at a minimum, in each of the two following
months as described in "North Carolina Phase Il Chronic Whole Effluent Toxicity Test Procedure" (Revised-
February 1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that
does have a detectable impairment of reproduction or survival. The definition of "detectable impairment,"
collection methods, exposure regimes, and further statistical methods are specified in the "North Carolina
Phase It Chronic Whole Effluent Toxicity"hest Procedure" (Revised-February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP311 for
the pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent
to the following address:
Attention: Environmental Sciences Branch
North Carolina Division of
Water Quality
1621 Mail Service Center
Raleigh, North Carolina 2 7699-1 62 1
Completed Aquatic Toxicity Test Forms shall he filed with the Environmental Sciences Branch no later than 30
days after the end of the reporting period for which the report is made.
Test data shall he complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate
signature. Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is
employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the permittee will complete the information located at the top of the aquatic toxicity (XI) test form indicating
the facility name, permit number, pipe number, county, and the month/year of the report with the notation of
"No Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences
Branch at the address cited above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will
be required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re-opened and modified to
include alternate monitoring requirements or limits.

Permit No. NCO004626
SUPPLEMENT TO EFFLUENT LIMITATIONS
AND MONITORING REQUIREMENTS
SPECIAL CONDITIONS
(continued)
]VOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
organism survival, minimum control organism reproduction, and appropriate environmental controls, shall
constitute an invalid test and will require immediate Follow-up testing to he completed no later than the last day
of the month Following the month of the initial monitoring,

May-06--99 1Q -0f7A P . 02
PPG INnU$TRIES,INC,IP.O.SOX MILEXINGTON,NORTH CAROLINA 272931AREA 336t357-0151/FAX 33r7=7-7171
Mr.Mark McIntire May 6, 1999
NP'DES Unit
Division of Water Quality
P.U. Box 29535
Raleigh, NC 27626-0535
Subject.: Draft NPDES Permit
Permit Number NC0004626
PPG Industries
Davidson County
Dear Mr. McIntire'
In reviewing the new classifiCation system for biological water pollution treatment syste111%
and discussing it with Mr.Steve Mauney of the WSR{], it appears that our facility sh0uld
now be classified as a Grade III.
We request that the reissued pen-nit reflect this change.
Sincerely,
J Buchanan, REM
Stag Engineer
Fnviroiunental Affairs

May-03--99 01 : 54P P - 02
12
PPO INOUSTRIES,INC/P.O.BOX 940/LEXIN=N,NORTH CAROMNA 2729n/AREA 33s/3s7=8151/rAX 330/357 7lTt
Mr,Mark MOnlirc May-1, 1999
NPT]PS Unit
Division of WaterOmlity
P.O. Pox 29535
Raleigh, NC 276264)535
Suhicct;Draft NPAF.S Pennit
permit Number NC0004626
PPG Industries
Davidson County
Der Mr, Mclntire:
PPG industries tuber Glass Products. Inc rc.9=0tilly requests that the following chuingcs be made to the
above rcicrenced draft pr:rrnil:
\` ,A).Toad Suspended Residue
e Request the current sampling/rcporang ircqucncy of weekly be retained for both the tiunlmer and
4 winter times. Since llle installation of the carbon columns as a final efflucrti.tr fitment, the
V TSS has averaged 6 lb/day with a single day mtximunr of 56 lbs.Fur llic tirnG pQriad of
January,1996- April.1999( 179 tests)the TSS has only avorf Sad IS lb/day. We do not botievo
�tr\ ryw this warrants an increase in testing/reporting,
k**<2).TKN /NO2-NO
Ralm-M the current sampling/reporting frequency of rnpnthly be retained. lror the lirnc period of
Jaauary,1996-April,1999 ( dtl tests),the TKN has avcrnged R m9/1 and the NC.}.,-NO3 Ims only
averaged.3 tng/l We do not believe this warrants an incrratse in testing/reporting.
✓3). Ft: 4 Coliform
Request the current sampiing/rcporting frequency of weekly he rctained. For the time period of
January,1996-April,1999( 174 tests), the fecal colirornn vvt)nt has averaged only 3/ 100 nil with
oily one month showing a count alcove 7. We do nol believe this warratttc an inerenlw in
I esl i ng/rcporti ng.
�f OiI &Grease
Request that this royuiren,enl be dropped or reduced io m umrc lha"once per month. For Ittc
time period of January,1990.March,1999 (78 tests), the oil& grease has averm8ed uisly
2.8 my)l with a maximum monthly average of 11.5 rng/1(this was the only month with an
aivertge Dove 6.2).We do not believe that these:retiulls indicate a need for at hinil or a need
I&any icstinX and certainly dacs not warrant daily lcsling,
5). Tom; Residual C:hlnriac
Request thal Ittc monitoring for this parameter be elinlinawd.B.rscd on the extrt;mch low fmil
coliforrtl counts,we would like to uomidcr eliminating cllluerd chlorination and see no need
to Itlonilor/report residual chlorine.

May-D3-99 01 : 54P P -03
Page 2
PPG Industries
We appreciate your consideration of these requcsls and look forward to an airly response. Please feel free
to contact me at 336-357-3194 if you have questions regarding;this teller.
Sincerely.
C)�m
.1.W.BuctiISIri:1i1. REM
Slaff Engineer
F.nvimnmcubil Affairs

— P"a NPUL'S permit number list-
PUBLICNOTICE ed below.elow.STATE OF
NORTH CAROLINA.: Dole:3131/99
• ENVIRONMENTAL,.' David A.Goodrich
MANAGEMENT,' T.Kerr Stevens,Director
COMMISSION `` for Division of
POST OFFICE BOX':,, Environmental Management
29535
RALF-1GH, t'e Public notice of intent to is-
NORTH CAROLINA sue a State NPDFS permit to
2JICf TIO '• the following:
NOTIFICATION OF.'_;�.
INTENT To ISSUE A'4' I. NPDFS No. NC06p4626. rjV%,
STATE NPDFS PERMIT" PPG Industries Fiber Glass
Products,Inc.,P.O.Box 949
On the basis of di Products.
Lexington, NC 27293 has
staff review and application' applied for a permit renewal
of Article 21 of Chapter f43;' for its facility located in
General'Statues of,North- Lexington on New Jersey
Carolina,Public Law 92.5oO4 Church Road, in Davidson
and.other lawful suadard>I County. The facility is per-
and.regulations, the'North milted to discharge up to 0.6
C`aohna Envl nrmenW MGD of treated domestic
Management Commission and of
wastewater
Proposes to issue o permit toy from one outfall into North
discharge to the Persons list-: Pots Crxk, a Class C
tx? below effeC4ve 5l25Ig9; ,stream in the Yadkin-Pee
and subject to.0.1.l condi- the River Basin. No pe•
lion°' tanre'era are water quality
liinited, but this discharge
Persona wishing m cununen[ may affect future alloca-
upon, or l in . n the lions.
proposed deletmina[iona ore
tnveed to submit same in 2.NPQES Permit
wrrung to[he above addtels NCO084425. Davidson Wa-
- nv Is them 5/1 9 All let, Inc. (P.O. Box 969
comments rtceive Prior to welcome, NC 27374) has
that dare will be considered
1n the formulation of applied for renewal of the
final NPQES''penni[ For the Oa-
detemtinations regarding the vidson Water Treatment
Propose-Petrai'. A public Plant,located at 388 Koontz
meeting may be held where Road near Lexington in Do-
the Director of[fee Division 'vidson County. The facility
Of EnvLtonmen[al Manage-_ d'escharges filter backwash
man' finds a significant t from one outfall into an on-
gree of public interest in z named tributary to the Yad-
AFFID.1 , . i`' ION kin River, a Class WS-IV'.
A copy of the draft CA stream in the Yadkin-
STATE OF NORTH CAROUNA available b Permit k N,C Pee Dee River Basin. Tu
Y K'riting of caB- �bidity is wafer quality hmit-
DAVIDSON COUNTY ing the DIY)aiaa of Enviran- ed. This may affect future
rmatal Management, P.O, water qua[iry based effluent
Box 29535, Raleigh, North limitations far additional dis-
Canuline 27626-0535, (919). H,a uewspap,chargara within this;ponion f
733.70l5. :of the watershed.11 f
Lexington, Counly and State a oresaid, The maPPGcation and other ie_' a fosegoing�, r April 1999 Ir
foration may be Anspected�
at these locations during nor-
which the attached is a true copy, mat office houn.'Copf--ea of said newspaper once the
the information an ffle are+
available upon request and
day of X Payment of the costs of { hh
reproducuon,Ali such com_ $cation Fee$ l
alert[" or requests regarding:
I Proposed Permit should
mate,;reference''to ,he s (Seal)
Swum to and subscribed before me, this day of
F31..1�'
d'y+ i:tturttrEsdors Erraa'aet
a- 'd

DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NC0004626
a Facility Information
Applicant%Facifity°Natrie =�" PPG Industries Fiber Glass Products, Inc.
App1i63Lnt"Address is=' ;„;= P.O. Box 949, Lexington, NC 27292
Facility.°Address,`,.`, ,., New Jersey Church Road. Lexington, NC
Pecrriitte&Flaw 0.6 MGll
Type of'Waste ,;:.e :;,, 90% industrial
10% domestic
Facility/Permit,Status` Existing renewal w/o expansion
County ' " Davidson
_ Miscellaneous .
ReceivingStreair;: North Potts Creek Regional Office '` Winston-Salem
Stream Cl;, a ssilncat ion C: 12-1 12 USGS Topo Quad:-. D 17N E, E 17NE
r303(d)'Listed7. &Y p : NO Permit;Writer: sr Mark McIntire
Subbasin 05-07-04 Date: ° October 25, 1998
Drama&Area(ri i2) 11.5
Summer 7Q10 (cfs) 1.0 t
Wittier 7Q20`'(cfs}_ 2.2
Average,-Flow,(cfs) 11.0
F i
-IWC%(%} @,:0 6.14lGD 48%
Priot;ary;Sl<c Coati 3229,
Treatment`;Plaist`.;Class 'IV
SUAAJVLARY V
PPG Industries Fiber Glass Products, Inc. operates a fiberglass fiber manufacturing facility in
Lexington, NC. The Lexington plant currently concentrates the bulk of its fiberglass yarn
manufacturing on the textile industry as well as the printed circuit board industry.
Manufacturing begins with glass raw materials including limestone, silica, boron, clay and fluorspar.
These raw materials are blended in powder form and added to melt furnaces. The batch melt
furnaces, operating at 2800°F, transform the batch into molten glass. The molten glass is then
drawn from the furnaces through electrically heated platinum bushings into continuous fibers. These
fibers are gathered into strands and either spooled or chopped into specified lengths. XVater sprays
cool the glass and keep strand contact points clean during the winding process.
This permit was first issued in 1977 and most recently renewed on August 1, 1995 upon resolution
of issues related to a petition for- contested case filed by the per•mittee. Documentation associated
with the 1995 renewal is quite sparse. The reason for the adjudication is not evident, but it appears
to have been filed regarding extensive instream monitoring installed in association with High Rock
I-ake. The facility had conducted an extensive instream study in the late 70s and felt that additional
stream monitoring was neither justified no necessary. As part of the settlement agreement reached
between the facility and the Division, instream monitoring was maintained but at a greatly reduced
frequency. The facility was required to monitor at 10 instrearn stations once during the summer of
1995 and once in 1996, Monitored parameters were DO, temperature, conductivity, pl-1, total
phosphorus, nitrate, nitrite, ammonia and `KN. The monitoring was completed as required and is
not proposed with this renewal.
PPG Lexington Fact Sheet
NPDES Renewal
Parse 1

The current effluent limitations For BOD, and TSS appear to be based on water quality protection
and not on federal guidelines. Extensive research was conducted to determine if any federal
guidelines exist for such a manufacturing operation, lion Anderson and Hugh Wise were contacted
at EPA in D.C. regarding the applicability of textile and glass guidelines. After my conversations with
both, I determined that neither set of guidelines applies to PPG's process. A review of the wasteload
allocation file indicated that the limits installed in this permit in 1985 were based on BPJ.
As indicated previously, this Facility discharges into North Potts Creek. North Potts is tributary to
High Rock Lake and is not listed on the State's 505(d) list. High Rock Lake shows signs of heavy
eutrophication. A management plan will be developed in the near future to address nutrient loads to
the High Rock system. Currently, however, there is no strategy for controlling nutrients from this
discharge with the exception of nutrient monitoring.
PPG's Lexington facility discharges through a single permitted outfall, 001. This outfall is from the
wastewater treatment plant and receives the following kinds of wastewater-:
• Sanitary (American Children's Home)
• In-plant sanitary
• Boiler Feed
• Process WW
• Von-contact cooling water
• Sludge dewatering
The vast majority of the wastewater sent to the treatment plant is process wastewater with only a
small portion coming from sanitary sources.
COMPLIANCE SUMMARY:
A review of DNIR data has indicated that this facility is well operated and, with the exception of
toxicity, has historically performed well within permit limits. Effluent BOD, averages about 5 mg/L
while effluent TSS averages about 2 mg/L. Because of the low domestic loading, influent and
effluent ammonia as well as effluent NO, is consistently about 1 mg/L and 0.1 mg/L respectively.
Effluent total nitrogen (most of which is organic) averages about 8 mg/1- while effluent total
phosphorus averages about 1.2 mg/L. This facility appears to be achieving effluent quality as good as
could be expected for a manufacturing process of this kind.
TOXICITY TESTING:
Type of ToxicityTest: Chronic (Ceriodaphnia)
Existing Limit: 001: Chronic P/F @ 48%
Recommended Limit: 001: Chronic P/F @ 48%
Monitoring Schedule: February, May. August, November
This facility has had a history of toxicity failures, In December of 1996. PPG applied for and
received a Special Order by Consent (SOC) for toxicity failures. The facility failed monthly chronic
tests from at least January 1995 through November 1995, with sixteen failures from January 1995
until receipt of the SOC in December of 1996. As part of that SOC, the facility was required to
continue its Toxicity Reduction Evaluation (TRE) efforts so as to potentially identify the source of
toxicity. Early on in the TRE process, ferric chloride was replaced with ferric sulfate as a coagulant
aid. Toxicity persisted during the proceeding months. In accordance with their SOC, PPG received
an Authorization to Construct (ATC) for activated carbon adsorption facilities on April 4, 1997. 1t is
not clear as to whether or not bentonite clay is added. An Engineer's Certification was subsequently
received for this ATC on October 10, 1997. Although the documentation does not identify the
toxicity causing agent, the installation of carbon adsorption facilities seems to have solved the toxicity
PPG Lexington Fact Sheet
NPDES Renewal
Page 2

t .
failure problem. Should toxicity problems return, it should be made clear that PPG's first priority is
the determination of the toxicity causing agent(s).
INSTREAM MONITORING:
As discussed in the Summary, an extensive instream monitoring program was established with the
previous permit. The intent of that program was to determine PPG's impact on instream dissolved
oxygen and nutrient levels. The program required sampling once during the summers of 1995 and
1996, A review of the data did not provide conclusive evidence that PPG's discharge is impacting
instream water quality. As such. with the data collected, the instream monitoring program has been
removed from this permit.
PROPOSED CHANGES:
• Nlonitoringf Frequencies: The monitoring frequency for total phosphorus, NO., and TKNr will
be increased from monthly to weekly in accordance with the Division's strategy for nutrient
monitoring in permits discharging within the High Rock make watershed. The monitoring
frequency For all other parameters will be modified such that they are consistent with the 2B
.0500 rules for facilities with SIC 3100.3199. Monitoring for COD has been eliminated from
the permit as it is not required in the PPG Shelby plant. Additionally, a review of wasteload files
did not provide any justification for continued monitoring.
• instream YYlonitoring. The instream monitoring requirements will be deleted as the
sample period stipulated in the existing permit has passed.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: March 24, 1999
Permit Scheduled to Issue: May 10, 1999
STATE CONTACT:
If you have any questions on any of the above information or on the attached permit, please contact
Mark McIntire at [phone] ext. 553.
NPDES UNIT COMMENT:
PPG Lexington Fact Sheet
NPDES Renewal
Page 5

NAME: - 2D- _ _ _DATE:
REGIONAL, OFFICE COMMENT:
-
NAME: DATE: 1 q
EPA COMMENT:
PPG Lexington Fact Sheet
NPDES Renewal
Page 4

f
PPG-Lexington, NCO004626
Subject: PPG-Lexington, NC0004626
Date: Fri, 30 Oct 1998 08:25:29 -0500
From: "Kevin Bowden" <kevin [e-mail]> Internal
Organization: NC DENR DWQ ATU
To: Mark McIntire <[e-mail]>
CC: Matt Matthews <matt [e-mail]>
Mark, Matt forwarded your e-mail message concerning PPG's (Lexington)
THE work to me for comment.
I will try to make this concise.
PPG hired AEI in June 1993 as their toxicity consultant. AEI identified
ferric chloride as a potential toxicant and suggested the facility
switch use to ferric sulfate. This change was implemented in 9/9, the
facility had several "passes"; however, effluent toxicity returned. The
facility requested an SOC from DWQ in 8/95 which was signed by Preston
on 12/18/96. The SOC (EMC WQ No. 95-18) provided conditional compliance
for toxicity until 711/97. It also contained an upfront $3000.00
penalty for settlement of all chronic toxicity effluent violations from
3/95-7/95. File notes suggest that activated carbon was selected as the
treatment technology based on pilot testing results and information
obtained from limited characterization testing. This office expressed
concern that effluent toxicants may not have been sufficiently
characterized and that we had not reviewed data which would suggest that
activated carbon would reduce toxicity to acceptable levels. Since
7/1/97, the facility has met or achieved compliance with its 49% chronic
permit limitation. (NOTE: PPG operates another facility in Shelby
which was also having problems with attaining compliance with final
permit limits for toxicity and implemented a bentonite clay addition
system.)
I hope this helps. Call if you have any questions.
Kevin Bowden <[e-mail]>
DENR/DWQ
I of 1 2/2/99 9:56 AM

Attorneys at Law
Suite 400
� r� 4101 Lake Boone Trail
KILPAmI rK S.�+iO K ON LLP Raleigh,North Carolina 27607-6519
Telephone:919,420.1700
Facsimile:919.420.1800
Wel>silt:www.kilstock.com
WILLIAM F.LANE
December 16, 1998 E-mail:[e-mail]
Direct Dial: 919.420.1794
Direct Fax:[phone]
VIA FIRST CLASS MAIL
Mr. Mark McIntire
North Carolina Department of Environment and Natural Resources
Division of Water Quality
P. O. Box 29535
Raleigh, North Carolina 27626-0535
RE: Ownership Change, NPDES Permit No. NC0004626
Ownership Change, NPDES Permit No. NCO004685
Dear Mr. McIntire:
Pursuant to our telephone conversation today, it is my understanding that PPG
Industries Fiber Glass Products, Inc. may operate its facilities in Lexington, North Carolina
and Shelby, North Carolina under the above-referenced NPDES permits. It is also my
understanding that the Division of Water Quality will renew the above-referenced permits in
the name of PPG Fiber Glass Products, Inc. effective January 1, 1999, As we discussed, the
transfer of ownership of the facilities will take place on January 1, 1999 and PPG Industries
Fiber Glass Products, Inc. will provide you with a copy of the deed transferring ownership of
the facilities during the week of January 4, 1999.
Please let me know if you disagree with my understanding of our conversation.
Sincerely,
M /0'^
William F. Lane
RALL11301:492107.01
Atlanta • Augusta • Brussels • Charlotte • London • Raleigh • Stockholm • Washington • Winston-Salem

PPG Industries, Inc.
719 West Center Street Lexington, North Carolina 27292 USA Telephone: [phone]
Fax: [phone]
January 26, 1999
Mr. Charles Weaver r,
North Carolina Department of Environment and Natural Resources
Division of Water Quality `1.
Permits and Engineering Unit
P. O. Box 29535
z
Raleigh, NC 27626-0535
Re: Ownership Change, NPDES Permit No. NCO004626
Dear Mr. Weaver:
Enclosed please find a copy of the deed transferring ownership of the PPG Industries, Inc.
facility in Lexington, NC to PPG Industries Fiber Glass Products, Inc., effective January, 1,
1999.
A request to transfer NPDES Permit No. NCO004626 was submitted to you on December 4,
1998 along with the Water Quality Section Permit Name/Ownership Change Form and the
$100.00 Processing Fee.
This should complete the requirements for issuance of the NPDES permit in the name of PPG
Industries Fiber Glass Products, Inc. If any additional information is needed, please call me at
[phone].
Sincerely,
0-W . LQ-
C. M. LeCroy, Mana r
Environmental & Chemical Technology
Fiber Glass

JRN-26•-1999 11:14 REED SMITH PGH 5CP 41228US345 el.e�
vy.w v ; V a 7► �. • , .�v . 'r�•4 , '.� un I T v
% FILED
0 0 0 0 0 0 0 0 ADEC �,9 ��' 57
0 f RONAL ,
COl"MONW TH OF PENNSYLVANIA ) REGISTER QF 0 k�O N.C.i7AY10..0CUT
rOUN Y. .O
} SS .
COUNT)80 ALLEGHENY )
On t i 16th day of December, 69M rbetlova me, a Notary
su � sy
Public, ersonal peared Kevin F. 1m a ',CD w� ac owledged
that he is Vice President of PPG INDUSTRIES, INC. , a
corporation, and who being duly sworn according to law, deposes
and says that : (1) the deed attached hereto between PPG
INDUSTRIES, INC . , as grantor, and PPG Industries Fiber Glass
Products, Inc . , as grantee, executed and signed this 16th day of
December 1998 , will not be delivered to PPG Industries Fiber
Glass Products, Inc . , until January 1, 1999; and (2) ownership
of the property described in such deed shall not vest in PPG
Industries Fiber Glass Products, Inc . , until the delivery of
said deed.
Vice President of
PPG INDUSTRIES, INC . ,
Witness by my hand and notarial seal, this the 16thday
of December, 1998 .
ary Public
My commission expires :
Idson County
North Car411na-.Day
annexod) certi4ica*s) o�-•--- —•�^"" ''` e, '.
The i P nn ,�senette E.Notarial Seel
Mt.Oliver Borpalfe hen
My Commission Expires April county
A .200o
(yvtary Pubs ICC (Notaries es i•;,, is curaii9ed to b�,+�orr�ci� Member-Pennsylvania gssoriatlo+a of Notarise
this.. _.....1.day uf. ...... ....... . ...,.. l.l����JJ
Ronk W. Callicutt. Regis pf

State of North Carolina
� .-,,W
Department ofE v'ronmeat
an , ,
Natural Resodrees :y.rf - -•�2
Division of Water Quality a;
James B. Hunt, Jr., Governor. '
Wayne McDevitt, Secretary ENR
A. Preston Howard, Jr:, P_E. Director 1 '"'��••.� '
•, ,,,�; ;-, ,',� ._ .... �.•,•. ..%•NORTH+I.NROLINA DEPAF2TMENT OF
i Y ENVIRONMENT ANo NATURAL RESOURCES
December 10, 1998 - . .
Mr, Gerald D. Emmert
PPG Industries Fiber Glass Products, Inc.tl.
P,O. Box 949 '
Lexington, North Carolina 27293
Subject: NPDES Permit Modification Fees.
r !`' Pe nit-NC0004626'- Davidson County
-— �.— �-
Permit NC0004685- Cleveland County
Dear Mr. Emmert:
The Division received the attached permit modification requests and two'checks (#0004156447
and 0004156449, each for $100.00) on December 9, 1998. The checks are being returned to you for
the following reasons:
■ Both of the permits are currently in the process of being renewed by the Division. Minor
modifications requested during the renewal process do not require an additional fee, as the i
renewal fee for both permits has already been paid.
■ Both permits will be sent to Public Notice with the new company name (PPG Industries Fiber
Glass Products, Inc.). This will serve as public notification of the change in ownership until the
final permits are issued.
Please note that the Division requires documentation of an ownership change in the form of a
deed, contract or other documentation showing that the change in ownership has occurred. Please
submit the appropriate documentation (for both sites) to me at the address listed at the foot of this
page. . . i
- ' If you have any additional questions about the permitting process, please contact me at the
address or telephone number listed below. If you wish to discuss either permit renewal with the
review engineer, contact Mark McIntire at [phone], extension 553.
Sincerely,
k:
Charles H. Weaver, Jr. _
NPDES Unit .:
cc: Central Files
NPDES File
P.O.Box 29535,Raleigh,North Carolina 27626-0535 Telephone[phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer [e-mail]

q8 DEC -9 P ') PQGLlndustries Fiber Glass Products, Inc.
473 New Jersey Church Road Lexington, North Carolina 27292 USA Telephone: [phone]
December 4, 1998
Mr. Charles Weaver
North Carolina Department of Environment
and Natural Resources
Division of Water Quality
Permits and Engineering Unit
P. O. Box 29535
Raleigh, NC 27626-0535
Re: Ownership Change, NPDES Permit No.INC'O- '
Dear Mr. Weaver:
On January 1, 1999, PPG Industries, Inc. will transfer ownership of its facility in
Lexington, North Carolina (Davidson County) to a new owner, PPG Industries Fiber Glass
Products, Inc. PPG industries Fiber Glass Products, Inc. hereby requests a transfer of NPDES
Permit No. NC4004626. The PPG Industries Fiber Glass Products, Inc. facility will continue to
operate the facility in the same manner as PPG Industries, Inc. and will operate without
interruption. Furthermore, the PPG Industries Fiber Glass Products, Inc. facility will continue to
comply with the current permit requirements.
Please find enclosed the following documents:
1. Water Quality Section Permit Name/Ownership Change Form; and
2. $100.00 processing fee.
Upon completion of the ownership transfer, PPG Industries Fiber Glass Products, Inc. will
forward a copy of the deed transferring the facility from PPG Industries, Inc. to PPG Industries
Fiber Glass Products, Inc.
We thank you for your attention to this matter.
Sincerely,
G. D. mmert, President
PPG Industries Fiber Glass Products, Inc.

Department of Environment, &T4
Heath and Natural Resources •
flivislon of,Environmental Management
James B. Hunt. Jr., Governor
Jonathan B. Howes, Secretary ID FE N �.
A. Preston Howard, Jr., P.E. Dlrector
WATER QUALITY SECTION
EERhM NAME/OWNERISHIP CHANGE FORM
I. _
ermit um N G
1. Permit holder's name: �{� C¢ ��.•ows,2�e� �_ice„ �� _
I Pe--mit's signing official's name and title: v t K r„ �'� �-L•u r t
(Person legally responsible for permit)
n (Title)
3. Mailing address, O"e— T 9 6 ' 1-c-%S City' i rr4 a i.c_2 of
St=- '�*`� tip Code- '.SZ�2 Phone:(4-1--1-) 43 4- Z54 j
IL MY OWNI;RINAMEINEMMAII41S
1. This request for a name change is a result of:
�a Cbange-in owareship of prupertylcompany
b. Name d=gc only
_c. Other(please explain),
2. New owne?s name (name to be put on permit): i
3. New owner's or signing official's name and title:
(Person legally responsible for permit)
r✓k1 _
(True)
a. Mailing address;_Q o. (Lc City: --
S=, C __ -zip Code; �Phoue: 3 (*) 3 5"? — 32- 5-

PERMIT NA_MEIOWNEREHIP CHAj GE MEM
THIS APPLICATION PACKAGE WILL-NOT BE ACCEPTED BY THE DIVISION OF
ENVIRONMENTAL MANAGEMENT"UNLESS ALL OF THE APPLICABLE ITEMS
LISTED BELOW ARE INCLUDED WITH-THE SUBMITTAL.
REQUIRED)C'IEMS:
1. Tbds c=Vleted application
Z- Pro=sing fee of S100.00 (Checks to be made payable to DEIITIMT
3. If an ownership change,legal documentation of the transfer of ownership (such as a contract,deed,
articles of incorporation)
CERTIFICATION MUST BE COMPLETED AND SIGNED BY BOTH THE CURRENT
PERMIT HOLDER AND THE NEW APPLICANT IN THE CASE OF CHANGE OF
OWNERSHIP. FOR NAME CHANGE ONLY, COMPLETE AND SIGN THE
APPLICANT'S CERTIFICATION,
Current Permittee's Certlfcation:
-4z o ';:. U 4 .attest that this application for name/ownership change has been
reviewed and is accurate and complete to the best of my knowledge. I understand that if all required parts
of this application are not completed and that if all required supporting information and attachmerrts are not
included, 's application a ill be returned as i=omplcte.
Signa=c•
Applicant's Certification:
11 G 2�.o -!�. �+"►Mt c2i ,attest that this application for a namelownership change has been
reviewed and is accurate and coruI fete to the best of my knowledge. I understand that if all requited pars
of this application are not completed and that if all required supporting information and artach=nts are not
included,this ap94�ac�i-vffreturn p cte.
Signatau
THE OMPLE'I'ED APPLICATION PACKAGE,INCLUDING ALL SUPPORnNG INFORMATION
AND MATERrai, SHOULD BE SENT TO THE FOLLOWING ADDRESS:
North Carolina Division of Environmental Management
Water Quality Section
Permits and Engineering Unit
P.O. Box 29535
Raleigh, North Carolina 27626-0535
Telephone: (919) 733-5083
Fax: (919) 733-0719