NC0086169_Authorization to Construct 2001_20011105

N
State of North Carolina
4617;lireirii
Department of Environment
and Natural Resources
Division of Water Quality 1-==
Michael F. Easley, Governor NCDENRWilliam
G. Ross, Jr., Secretary
Gregory J. Thorpe, Ph.D., Acting Director NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
November 5,2001
Ms.Christy L. Hannan
Corning Incorporated
Post Office Box 1700
Concord,North Carolina 28026
Subject: Authorization to Construct
ATC No.086169A01 (formerly 086169ACC)
NPDES Permit No.NC0086169
Concord Waveguide Plant
Cabarrus County
Dear Ms.Hannan:
The Division of Water Quality's NPDES Unit has reviewed your request for an Authorization to Construct at the above
referenced facility. The Division fmds the proposed improvements to be satisfactory and hereby grants authorization for the
following:
• Construction of a 60,000 gallon Saleable Acid tank;
• Construction of a 10,000 gallon Reject Acid tank;
•
• Modifications to the existing 3,000 gallon effluent lift station;
• Modification to existing process pump;
• Installation of all piping, valves, and appurtenances as illustrated on the attached approved design
documents.
This Authorization to Construct is issued in accordance with NPDES Permit No. NC0086169, issued on October 31, 2001,
and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with the terms and
conditions of the permit.
The Permittee shall notify the Water Quality Supervisor of the Mooresville Regional Office, telephone number (704) 663-
1699, at least forty-eight(48) hours prior to operation of the installed facilities, so that an in-place inspection can be made.
Notification shall be made during the normal office hours of 8:00 a.m.until 5:00 p.m.,Monday through Friday.
Engineer's Certification
Upon completion of construction and prior to operation of the modified facility,the Permittee shall provide the Division with
a certification(copy enclosed)from a professional engineer registered in North Carolina certifying that the permitted facility
has been installed in accordance with the NPDES Permit, this Authorization to Construct, and the approved plans and
specifications. The Certification should be submitted to: NCDENR / DWQ, NPDES Unit, 1617 Mail Service Center,
Raleigh,North Carolina 27699-1617.
Requirements for Certified Qperator
The Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at least equivalent to or greater than
the classification assigned to the wastewater treatment facilities by the Certification Commission. The Permittee must also
employ a certified back-up operator of the appropriate type and grade to comply with the conditions of Title 15A, Chapter
8G, .0200. The ORC of the facility must visit each Class I facility at least weekly and each Class II, III, and IV facility at
least daily, excluding weekends and holidays; and must properly manage and document daily operation and maintenance of
the facility and comply with all other conditions of Title 15A, Chapter 8G, .0200.
Additional Requirements
The Operational Agreement between the Permittee and the Environmental Management Commission is incorporated herein
by reference and is a condition of this Permit.Noncompliance with the terms of the Operational Agreement shall subject the
Permittee to all sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with the terms and
conditions of this Permit.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 Telephone[phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer Internet: http://h2o.enr.state.nc.us/NPDES

•
4,
Corning Inc.-Concord Facility
NPDES Permit No. NC0086169
g ATC No.086169A01(formerly 086169ACC)
Page 2
Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee to an
enforcement action by the Division of Water Quality in accordance with North Carolina General Statute 143-215.6A to 143-
215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying with any and all statutes,
rules,regulations,or ordinances which may be imposed by other government agencies(local, state, and federal)which have
jurisdiction.
The Permittee shall maintain a copy of the approved plans and specifications on file for the life of the facility. One(1)copy
of the approved plans and specifications is enclosed for your records.
If you have any questions about this Authorization to Construct,please contact Michael Myers,at(919)733-5083,extension
508.
Sincerely,
_;.„Kt4rZL.....frfcreieo
frt.. Gregory J.Thorpe,Ph.D.
Acting Director
Enclosures: Project Plans and Specifications(approved)
Engineer's Certification Form
cc: Mooresville Regional Office,Water Quality(letter only)
Technical Assistance and Certification Unit(letter only)
Central Files(letter only)
NPDES Unit Files(letter and engineer's certification form)

State of North Carolina
Department of Environment
and Natural Resources ` • -
Division of Water Quality
Michael F. Easley, Governor
William G. Ross, Jr., Secretary NCDENR
Gregory J. Thorpe, Ph.D., Acting Director
PROFESSIONAL ENGINEER'S CERTIFICATION
FOR
CONSTRUCTION OF WASTEWATER TREATMENT FACILITIES
ATC PROJECT NUMBER: 086169A01 (FORMERLY 086169ACC)
Concord Waveguide Plant
NPDES Permit No.NC0086169
I, , am a duly registered Professional Engineer
please print)
in the State of North Carolina and have been authorized to observe (circle one: periodically, weekly, full
time)the construction of the subject project for the Permittee:
Project No.: 086169A01 (formerly 086169ACC)
Project: Corning Inc—Fiber Optic
Phase III Expansion
Cabarrus County
Location: Concord Waveguide Plant
The project consists of:
• Construction of a 60,000 gallon Saleable Acid tank;
• Construction of a 10,000 gallon Reject Acid tank;
• Modifications to the existing 3,000 gallon effluent lift station;
• Modification to existing process pump;
• Installation of all piping, valves, and appurtenances as illustrated on the attached
approved design documents.
I hereby certify that I did regularly observe this project with due care and diligence and that the
construction was completed in substantial conformance with the Authorization to Construct and with the
approved plans and specifications.
Signature Registration No.
Date
Upon completion of construction and prior to operation of the modified facility, the Permittee shall provide the
Division with a certification from a professional engineer certing that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct, and the approved plans and specifications.
The Certification should be submitted to:
NCDENR/DWQ, NPDES Unit, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617

5.........4
SOC PRIORITY PROJECT: No
To: Permits and Engineering Unit
Water Quality Section
Date: July 20, 2001
AUTHORIZATION TO CONSTRUCT
NPDES PERMIT
REPORT AND RECOMMENDATIONS
County: Cabarrus
MRO No.: 01-98
ATC No. 086169ACC
NPDES Permit No.NC0086169
PART I-GENERAL INFORMATION
1. Facility and Address: Corning, Inc. En:o U
Post Office Box 1700
Concord,N.C. 28026 a
(.0
La LI
CC
`"
2. Date of On-Site Investigation(if conducted): May14, 1999 3 0
' IN f2
Wo
3. Report Prepared By: Michael L. Parker,Environmental Engineer II e_
4. Persons Contacted and Telephone Number: Christie Hannan, (704)569-62:: c
5. Verified Discharge Point(s), List for All Discharge Points:
Outfall 001 Outfall 002 Outfall 003
Latitude: 35° 13' 02" Latitude: 35° 12' 34" Latitude: 35° 12' 30"
Longitude: 80° 31' 15" Longitude: 80° 31' 31" Longitude: 80° 29'49"
Attach a USGS map extract and indicate treatment facility site and discharge point on map.
USGS Quad No.: G 16 NE
6. Site size and expansion area consistent with application?Yes.
7. Topography (relationship to flood plain included): The site is well removed from any flood
plain(2-4%slopes).
8. Location of Nearest Dwelling: 500+feet from the plant site.
PART II-DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. Existing Treatment Facility

Page Two
outfall 001 outfall 002 outfall 003
a. Current permitted capacity: 0.269 MGD 0.269 MGD 0.036 MGD
b. Date(s)and construction activities allowed by previous ATCs issued in the
previous two years: 086169ACB issued 5/31/2000 for the construction of a 60,000
gallon chloride stabilization tank, a 21,000 gallon equalization tank with an 8.5 hour
holding capacity,two(2) 1,700 gallon neutralization tanks,a 36,000 gallon off-spec
tank, a 21,000 gallon surge/blend tank,and two (2) lamella clarifiers for solids
separation.
c. Actual treatment capacity of the current facility(design volume): See(a.)above.
d. Description of existing or substantially constructed WWT facilities: The existing
WWT facilities consist of a 21,000-gallon equalization tank followed by two off-spec
tanks(36,000 and 21,000-gallon),two(2)Lamella clarifiers,a 60,000-gallon chloride
stabilization tank,four(4) 1,600-gallon pH adjustment tanks, a 10,000-gallon softener
regenerate tank, a neutralization transfer tank, 21,000-gallon surge/blend tank,three(3)
sludge thickening tanks (575, 5000 and 10000-gallon),an effluent lift station, a 42,000-
gallon process effluent tank(for storage of wastewater when quality does not meet
permit limits) and flow measurement.
2. Type of Proposed Treatment Facility: The applicant proposes to construct additional WWT
facilities consisting of a 60,000 gallon saleable acid tank, a 10,000 gallon reject acid tank,and
assorted modifications to the existing process pumps and 3,000 gallon influent lift station.
3. Residuals Handling and Utilization/Disposal Scheme: Residuals disposal (when necessary)is
accomplished by placing the residuals in metal containers and transporting them as non-
hazardous waste to a private landfill owned by WTS Services in Michigan.
4. Treatment Plant Classification: Class II (based on existing treatment units)
5. SIC Code(s): 3229 Wastewater Code(s): 78 Main Treatment Unit Code: 51112
6. Important SOC/JOC or Compliance Schedule Dates: This facility is not currently operating
under the terms of an SOC or Permit Compliance Schedule.

Page Three
PART III-EVALUATION AND RECOMMENDATIONS
The applicant, Coming,Inc.,has applied for approval to construct the WWT facilities as noted
in Part II,No. 2 above as part of an anticipated plant expansion. The components listed above are in
addition to the existing WWTP components that are already in-place at the plant.
Pending a technical review and approval of the above referenced WWTP additions by P&E,it
is recommended that an ATC be issued.
(- /&-le?, -)P6 #0/
Signature of Report Preparer Date
eGL I ?fr/c.)/
Water Quali egional Supervisor Date
h:\atc\atc0l\ccrning.atc

Corning Incorporated
Telecommunications Products Division
P.O.Box 1700
Concord, North Carolina 28026-1700
704-569-6000
tt/fa, ? 1 1 s..
MD04
F ,2001 CORNING
Mr.David A.Goodrich
NCDENR-Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
Re: Corning Incorporated-Midland Facility
NPDES Permit Number 86169
Authorization to Construct Request
Dear Mr.Goodrich:
Enclosed are three(3)sets of design documents supporting our request for Authorization to Construct in association
with the our December 20000 request for expansion at Coming's Midland,NC facility.
As was summarized in our above referenced permit modification request(currently under review by Mr.Mike Myers of
your office),Corning is proposing an expansion of the optical fiber manufacturing facility in Midland,Cabarrus County.
Process effluent from the fiber optics manufacturing process will continue to consist primarily of blowdown from the air
pollution control equipment. It is proposed that the facility will treat the new process effluent as it does the existing
process effluent,through a fairly simple Pollution Abatement System consisting of lamella clarifiers for solids removal
and neutralization for pH adjustment. The expansion of the Pollution Abatement System will consist of the following:
• A 60,000 gallon Saleable Acid Tank;
• A 10,000 gallon Reject Acid Tank;
• Modifications to several of the existing process pumps;and
• And modifications to an existing 3,000 gallon effluent lift station.
This request for Authorization to Construct includes detailed plans and specifications signed and sealed by a
Professional Engineer registered in the State of North Carolina and responses to all issues addressed in the NPDES
Unit's Authorization to Construct Requirements guidance document. Any drawings or specifications that may change
during the ongoing design effort and/or construction will be sent to DWQ with the engineer's certification.
In an effort to begin construction as soon as possible,Corning respectfully requests that,if possible,the Authorization to
Construct be issued concurrently with issuance of the pending permit modification. If any further information is
required in order to expedite the approval process,please feel free to contact me at(704)569-6268.
Sincerely,
Corning Incorporated
Christy L.Hannan (a S O 'I F F _ 791
Senior Environmental Con. • L '
O �J
P� DENR`NATER QUALITY
Enclosures: as noted Q��\�� '- POINTSOURCE PflANCH __—

Corning Incorporated
Telecommunications Products Division �j
P.O.Box 1700 i+ 7� r l�\I r\.1
Concord, North Carolina 28026-1700 f
704-569-6000 1' 1 r
May 8, 2001L1 d MAY 1 0 2001
DENR - WATER QUALITY
CERTIFIED MAIL POINT SOURCE BRANCH
RETURN RECEIPT REQUESTED CORNING
Mr. Dave Goodrich
North Carolina Department of Environment and Natural Resources
Division of Water Quality, NPDES Permit Unit
1617 Mail Service Center
Raleigh,North Carolina 27699-1617
RE: Corning Incorporated, Concord Facility
NPDES Permit No. NC0086169
ATC,Engineer's Certification
Dear Mr. Goodrich:
Attached,please find the Engineer's Certification for Construction of Wastewater
Treatment Facilities for subject ATC. As stated in the initial certification letter,the
wastewater treatment facility system will be started sequentially to facilitate discharge of
wastewater streams per the permit. Please refer to the attached description of the planned
start-up.
The enclosed certification is for Sequence 1A. This start-up sequence will treat the
combined streams of 1)cooling tower blowdown from the Concord II HVAC cooling
tower, 2) Neutralization System No. 1 effluent, and 3)cooling tower blowdown from the
Concord I HVAC cooling tower. Prior to additional systems coming on line, an
engineer's certification will be provided for them.
Please feel free to contact me if you have any questions concerning the information
contained in the documents. I can be reached at [phone].
Sincerely,
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures
Cc: Mooresville Regional Office, NCDENR

Corning Incorporated
Concord Facility
Permit No. NC0086169
ENGINEER'S CERTIFICATION
FOR
CONSTRUCTION OF WASTEWATER TREATMENT FACILITIES
1, �. � h/�,� /% TGf�FLL , am a duly registered Professional Engineer
(please print)
in the State of North Carolina and have been authorized to observe (circle on . periodically weekly,
full time) the construction of the subject project for the Permittee:
Project No.: 086169ACB
Project: Corning Incorporated
Concord Facility
Waste Abatement System Expansion
The project consists of: �//
• Construction of a 60.000 gallon chloride stabilization tank; /1/01 dowsere
• Construction of a 21.000 gallon equalization tank; 4S C ,irr
• Construction of two (2) 1.700 gallon neutralization tanks; ,i4r to•',PL,Ea
• Construction of a 36.000 gallon off-spec tank; Ig7 GPM" 3
• Construction of a 21.000 gallon surge/blend tank; CD4I101iPL
• • Construction of two (2) lamella clarifiers; and C MAkat
• Installation of all piping, valves, and appurtenances as illustrated on the attached approved
design documents.
I hereby certify that I did regularly observe this project with due care and diligence and that the
construction was completed in substantial conformance with the Authorization to Construct and with /
the approved plans and specifications. SO 4774C/MOWT (4 f %) r•�c tes4C/0M41
o �reT/i/t41T"4' &VS
do
Signature Registration No. 02 44 14
Date 51'/�Agl ►t t t ,
,•�� � ,R
The Division of Water Quality hereby / - //�
acknowledges receipt and acceptance of ilk 026634 #
this Engineers Certification • %. , ' P•i v
t ; �c`•••.Np I NEE••��i.'
1, R M .
Upon completion of construction and prior to operation of the modified facility, the Permittee shall provide the
Division with a certification from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct, and the approved plans and specifications.
The Certification should be submitted to:
NCDENR/DWQ,NPDES Unit, 1617 Mail Service Center,Raleigh,North Carolina 27699-1617

•
Attachment to
Engineer's Certification for Construction of Wastewater
Treatment Facilities - Second Submittal
Certification This Engineer's Certification for Construction of Wastewater Treatment
Basis Facilities is for Project No. 086169ACB for Corning Incorporated,
Concord Facility, Waste Abatement System Expansion.
The wastewater generated by the different processes within the
Concord Facility will be treated as they are generated. The facility
processes will be started-up in an orderly sequence and each
subsystem in the wastewater treatment area will be placed in
operation as required to treat each type of wastewater as it is
produced.
The construction of the wastewater subsystems have been scheduled
to correspond to the generation of process wastewater by the facility
processes. Thus, the entire wastewater treatment system is not
completed and ready for operation. We have concentrated our efforts
to built and test the subsystems to meet a start-up schedule that
parallels the start-up schedule of the facility process areas.
To address the process start-up requirements the subsystems in the
wastewater treatment area will be started in discrete parts we have
termed Sequences.
System As outlined in the first certification submittal, we have
Update successfully completed the start-up of Sequence 1B—treatment
of cooling tower blowdown from the Concord II HVAC cooling
tower. Due to the mode of operation'of the cooling tower, we •
have been treating the blowdown in a "batch" operation. We
anticipate initiating a continuous mode of blowdown treatment
the week of 5/7/2001.
Corning Incorporated
Concord Facility Page 1 of 4
Contract No.78600.001
May 7,2001

,
Start-up This second certification submittal includes the wastewater treatment
Activities subsystem start-up of Sequence 1A which will combine with the
wastewater from Sequence 1B (this start-up has been successfully
completed). In this start-up sequence we will be treating the
combined streams of 1) cooling tower blowdown from the Concord II
HVAC cooling tower, 2) Neutralization System No.1 effluent, and 3)
cooling tower blowdown from the Concord I HVAC cooling. The
combined streams will be treated with sodium bisulfite, as required for
the removal of chlorine. The pH will be within acceptable values (6—
9 pH units) due to the HVAC cooling towers and Neutralization System
No. 1 control range. The suspended solids level in the cooling tower
blowdown should be low due to the HVAC cooling tower control range.
If required, we have the capability of removing any suspended solids
in the No. 3 lamella.
The following paragraphs generally describe the components of the
subsystem which will be required for Sequence 1A & 1B. These
components are described in detail in ATC No. 086169ACB.
We will be ready to accept the combined Neutralization System
No. 1 and Cl& CII HVAC Cooling Tower Blowdown in Sequences
1A & 1B on Friday, May 11, 2001.
As the remaining wastewater subsystems are built and
tested, the corresponding Engineer's Certification will be
submitted in accordance with the Division requirements
prior to operation of those subsystems.
Coming Incorporated
Concord Facility Page 2 of 4
Contract No.78600.001
May 7,2001

System Solids Removal Unit (See Figure 3)
Operation
Overview The inlet header to the Surge/Blend Tank provides for premixing of
non-contact cooling tower blowdown, treated effluent from
Neutralization System No. 1, treated effluent from Neutralization No. 2,
and softener regeneration wastewater prior to entering the tank. This
provides for thorough mixing of the wastewater inlet flows and sodium
bisulfite for chlorine removal in a static mixer. From the Surge/Blend
Tank the blended wastewater is pumped to Lamella Separator No. 3
for removal of suspended solids and is then pumped to the existing
Effluent Lift Station. Any off-spec (pH) wastewater is automatically
diverted to an Off Spec Tank No. 2 and then pumped back to
Equalization Tank No. 2 at a controlled rate for re-treatment. Other
off-spec (turbidity or ORP) wastewater is automatically diverted back
to the Surge/Blend Tank for re-processing through the chlorine
removal and suspended solids removal unit operations.
An existing Process Effluent Tank is located at the Effluent Lift Station
for storage of wastewater during the times wastewater cannot be
pumped to the river.Wastewater stored in the Process Effluent Tank is
returned, by gravity, to the Effluent Lift station.
Settled solids in the Lamella Separator are periodically pumped from
the lamella to the Sludge Thickening Tank No. 3 and then from the
tank to the existing Sludge Holding Tank for disposal.
Coming Incorporated
Concord Facility Page 3 of 4
Contract No.78600.001
May 7,2001

FIGURE 3 - SOLIDS REMOVAL UNIT
From Neut. System No. 1 &Concord I Cooling Tower Blowdown ►
From Softener Regeneration Tank
From Lamella No. 3 Transfer Pumps ►
From Concord II Cooling Tower Blowdown ►
From Neutralization Transfer Pumps No. 3&4
Sodium Bisulfite (NaHSO3)
►
Static Mixer
XXXXXXX 14 •
Flocculant ►
Coagulant
T Z T
Surge/Blend Tank Lamella Separator Sludge
21,000 gallons - - ► No. 3 ►
To Sludge Thickening Tank No. 2
T
Lamella No. 3 To Effluent Lift Station
Transfer Tank ►
800 gallons (or recycle to Surge/Blend Tank,
if out of control range)
Corning Incorporated
Concord Facility Page 4 of 4
Contract No.78600.001
May 7,2001

:. ri-lei
0,,,,_
Corning Incorporated o� 4
Concord Facility ill,
,L17 ro)
Permit No. NC0086169
ENGINEER'S CERTIFICATION
FOR
CONSTRUCTION OF WASTEWATER TREATMENT FACILITIES
I, D, GLArmL/ Z•c414 44_ , am a duly registered Professional Engineer
(please print)
in the State of North Carolina and have been authorized to observe (circle one periodically weekly.
full time) the construction of the subject project for the Permittee:
Project No.: 086169ACB
Project: Corning Incorporated
Concord Facility
Waste Abatement System Expansion
The project consists of:
• Construction of a 60.000 gallon chloride stabilization tank: 447-aorirsP4jfrE
• Construction of a 21.000 gallon equalization tank: : "kr- .040,40/.4s
• Construction of two (2) 1.700 gallon neutralization tanks:' day—a•osgtk. • -,
• Construction of a 36.000 gallon off-spec tank: / A47- 410•V#04 0
• Construction of a 21.000 gallon surge/blend tank: ._..COs1P,Ldr,i .
• Construction of two (2) latnella clarifiers( nd —.. cut/if(,)CO,r,pI z
• Installation of all piping, valves, and appurtenances as illustrated on the attached approved
design documents.
I hereby certify that I did regularly observe this project with due care and diligence and that the
construction was completed in substantial conformance with the Authorization to Construct and with
the approved plans and specifications. ,56-.6. 44n-,,,,„ ,,,,vr e3 Ps s) At aisoe,e,Orm,✓
OF CI4er/f/lt77,414/ ,&QS/s
Signature aS-135ii -
_4:72(5 ,ZRegistration No. O.246 .34
Date 3//4/.2al/ 0,,,,,,,,,
• P CAF 0 .
�O,•o*ESS10 le
to ti
'// '4.4,
49
•
<"'•�tiGINE.P%2/v
. ... •G •
......,.I%`
Upon completion of construction and prior to operation of the modified facility, the Permittee shall provide the
Division with a certification from a professional engineer certifying that the permitted facility has been installed in
accordance with the NPDES Permit, this Authorization to Construct,and the approved plans and specifications.
The Certification should be submitted to:
NCDENR/DWQ, NPDES Unit, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617

Attachment to
Engineer's Certification for Construction of Wastewater
Treatment Facilities
Certification This Engineer's Certification for Construction of Wastewater Treatment
Basis Facilities is for Project No. 086169ACB for Coming Incorporated,
Concord Facility, Waste Abatement System Expansion.
The wastewater generated by the different processes within the
Concord Facility will be treated as they are generated. The facility
processes will be started-up in an orderly sequence and each
subsystem in the wastewater treatment area will be placed in
operation as required to treat each type of wastewater as it is
produced.
The construction of the wastewater subsystems have been scheduled
to correspond to the generation of process wastewater by the facility
processes. Thus, the entire wastewater treatment system is not
completed and ready for operation. We have concentrated our efforts
to built and test the subsystems to meet a start-up schedule that
parallels the start-up schedule of the facility process areas.
To address the process start-up requirements the subsystems in the
wastewater treatment area will be started in discrete parts we have
termed Sequences.
Our first wastewater treatment subsystem start-up will be Sequence
1B. In this start-up sequence we will be treating Cooling tower
blowdown from the Concord II HVAC cooling tower. The cooling tower
blowdown will be treated with sodium bisulfite, as required for the
removal of chlorine. The pH will be within acceptable values (6—9 pH
units) due to the HVAC cooling tower control range. The suspended
solids level in the cooling tower blowdown should be low due to the
HVAC cooling tower control range. If required, we have the capability
of removing any suspended solids in the No. 3 lamella.
The following paragraphs generally describe the components of the
subsystem which will be required for Sequence 1 B. These
components are described in detail in ATC No. 086169ACB.
We will be ready to accept cooling tower blowdown in Sequence
1B on Wednesday, March 21, 2001.
As the remaining wastewater subsystems are built and
tested, the corresponding Engineer's Certification will be
submitted in accordance with the Division requirements
prior to operation of those subsystems.
Corning Incorporated
Concord Facility Page 1 of 3
Contract No.78600.001
March 14,2001

System Solids Removal Unit (See Figure 3)
Operation
Overview The inlet header to the Surge/Blend Tank provides for premixing of
non-contact cooling tower blowdown, treated effluent from
Neutralization System No. 1, treated effluent from Neutralization No. 2,
and softener regeneration wastewater prior to entering the tank. This
provides for thorough mixing of the wastewater inlet flows and sodium
bisulfite for chlorine removal in a static mixer. From the Surge/Blend
Tank the blended wastewater is pumped to Lamella Separator No. 3
for removal of suspended solids and is then pumped to the existing
Effluent Lift Station. Any off-spec (pH) wastewater is automatically
diverted to an Off Spec Tank No. 2 and then pumped back to
Equalization Tank No. 2 at a controlled rate for re-treatment.
The Lamella Head Tank, Lamella Separator No. 2, Equalization Tank
No. 2, pH Adjustment Tanks, Neutralization Transfer Tank No. 2, and
Off Spec Tank No. 2 are vented to the existing Miscellaneous
Scrubbers for collection and treatment of any vent vapors. An existing
. _Process Effluent Tank is located at the Effluent Lift Station for storage
of wastewater during the times wastewater cannot be pumped to the
river. Wastewater stored in the Process Effluent Tank is returned, by
gravity, to the Effluent Lift station.
Settled solids in the Lamella Separator are periodically pumped from
the lamella to the Sludge Thickening Tank No. 3 and then from the
tank to the existing Sludge Holding Tank for disposal.
Corning Incorporated
Concord Facility Page 2 of 3
Contract No.78600.001
March 14,2001

FIGURE 3 - SOLIDS REMOVAL UNIT
From Neut. System No. 1 &Concord I Cooling Tower Blowdown ►
From Softener Regeneration Tank
From Lamella No. 3 Transfer Pumps ►
From Concord II Cooling Tower Blowdown _
From Neutralization Transfer Pumps No. 3 &4
Sodium Bisulfite (NaHSO3)
' Static Mixer
•
•Abccularnt ►
• Coagulant
V V V
Surge/Blend Tank Lamella Separator Sludge
21,000 gallons ► No. 3 ►
To Sludge Thickening Tank No. 2
V
Lamella No. 3 To Effluent Lift Station
Transfer Tank ►
800 gallons (or recycle to Surge/Blend Tank,
if out of control range)
Corning Incorporated
Concord Facility Page 3 of 3
Contract No.78600.001
March 14,2001

Corning Incorporated
Telecommunications Products Division
P.O. Box 1700
Concord, North Carolina 28026-1700
704-569-6000
March 16, 2001
CORNING
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Dave Goodrich
North Carolina Department of Environment and Natural Resources
Division of Water Quality, NPDES Permit Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Corning Incorporated, Concord Facility
NPDES Permit No. NC0086169
ATC,Engineer's Certification
Dear Mr. Goodrich:
Attached, please find the Engineer's Certification for Construction of Wastewater tr.
Treatment Facilities for subject ATC. The wastewater treatment.facility system will be
started sequentially to facilitate discharge of wastewater streams per the permit. Please
refer to the attached description of the planned start-up.
The enclosed certification is for Sequence lb. This part of the system is required to start
up prior to the remaining facility to accommodate the start up and discharge of non •
-
contact cooling tower blowdown per the subject permit. Prior to additional systems
coming on line, an engineer's certification will be provided for them.
Please feel free to contact me if you have any questions concerning the information
contained in the documents. I can be reached at [phone].
Sincerely,
CL {LT
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures
Cc: Mooresville Regional Office, NCDENR

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v �
State of North Carolina
Department of Environment /IP"/IP
,(
and Natural Resources . rani
Division of Water Quality
James B. Hunt, Jr., Governor 1\41CD
Bill Holman, Secretary r
NORTH CAROLINA DEPARTMENT OF
Kerr T. Stevens, Director ENVIRONMENT AND NATURAL RESOURCES
May 31, 2000
Ms. Christy L. Hannan
Corning Incorporated
Post Office Box 1700
Concord. North Carolina 28026
Subject: Authorization to Construct
ATC No. 086169ACB
shoe.No. NC $9
Concord Waveguide Plant
Cabarrus County
Dear Ms. Hannan:
The Division of Water Quality's NPDES Unit has reviewed your request for an Authorization to Construct at the above
referenced facility. The Division finds the proposed improvements to be satisfactory and hereby grants authorization for
the following:
• Construction of a 60,000 gallon chloride stabilization tank;
• Construction of a 21,000 gallon equalization tank;
• Construction of two (2) 1.700 gallon neutralization tanks:
• Construction of a 36.000 gallon off-spec tank;
• Construction of a 21.000 gallon surge/blend tank:
• Construction of two(2) lamella clarifiers; and
• Installation of all piping, valves, and appurtenances as illustrated on the attached approved design
documents.
This Authorization to Construct is issued in accordance with NPDES Permit No. NC0086169. issued on April 14,
2000, and shall be subject to revocation unless the wastewater treatment facilities are constructed in accordance with
the terms and conditions of the permit.
The Permittee shall notify the Water Quality Supervisor of the Mooresville Regional Office, telephone number (704)
663-1699, at least forty-eight (48) hours prior to operation of the installed facilities, so that an in-place inspection can
be made. Notification shall be made during the normal office hours of 8:00 a.m. until 5:00 p.m.. Monday through
Friday.
Engineers Certification
Upon completion of construction and prior to operation of the modified facility, the Permittee shall provide the Division
with a certification (copy enclosed) from a professional engineer registered in North Carolina certifying that the
permitted facility has been installed in accordance with the NPDES Permit, this Authorization to Construct, and the
approved plans and specifications. The Certification should be submitted to: NCDENR / DWQ, NPDES Unit, 1617
Mail Service Center. Raleigh, North Carolina 27699-1617.
1617 Mail Service Center,Raleigh,North Carolina 27699-1617 Telephone[phone] FAX[phone]
An Equal Opportunity Affirmative Action Employer Internet:http://h2o.enr.state.nc.us/NPDES

•
Corning Inc.—Concord Facility
NPDES Permit No.NC0086I69
ATC No.086169ACB
Page 2
Requirements for Certified Operator
The Permittee shall employ a certified wastewater treatment plant operator to be in responsible charge (ORC) of the
wastewater treatment facilities. The operator must hold a certificate of the type and grade at least equivalent to or
greater than the classification assigned to the wastewater treatment facilities by the Certification Commission. The
Permittee must also employ a certified back-up operator of the appropriate type and grade to comply with the
conditions of Title 15A, Chapter 8G. .0200. The ORC of the facility must visit each Class I facility at least weekly and
each Class II. Ill, and IV facility at least daily, excluding weekends and holidays: and must properly manage and
document daily operation and maintenance of the facility and comply with all other conditions of Title 15A, Chapter 8G,
.0200.
Additional Requirements
The Operational Agreement between the Permittee and the Environmental Management Commission is incorporated
herein by reference and is a condition of this Permit. Noncompliance with the terms of the Operational Agreement shall
subject the Permittee to all sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with
the terms and conditions of this Permit.
Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee to an
enforcement action by the Division of Water Quality in accordance with North Carolina General Statute 145-215.6A to
145-215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances which may be imposed by other government agencies(local, state, and federal)
which have jurisdiction.
The Permittee shall maintain a copy of the approved plans and specifications on file for the life of the facility. One (1)
copy of the approved plans and specifications is enclosed for your records.
If you have any questions about this Authorization to Construct, please contact Mark McIntire, at [phone],
extension 553.
Sincerely,
75,4
afrerr T. Stevens
Director
Enclosures: Project Plans and Specifications (approved)
Engineer's Certification Form
cc: Mooresville Regional Office, Water Quality (letter only)
Technical Assistance and Certification Unit (letter only)
Central Files (letter only)
NPDES Unit Files (letter and engineer's certification form)

4.
State of North Carolina
Department of Environment, •
Health and Natural Resources A7A
Division of Water Quality
James B. Hunt, Jr., Governor
Wayne McDevitt, Secretary p E H N F
A. Preston Howard, Jr., P.E., Director
November 14, 1997
Ms. Christy L. Hannan
Corning Incorporated
Telecommunications Products Division
14556 Highway 601 South
Midland, North Carolina 28107
Subject: Permit No. NC0086169
Authorization to Construct
Midland Fiber Facility
Cabarrus County
Dear Ms. Hannan:
A letter of request for an Authorization to Construct was received August 20, 1997 by the Division and final plans
and specifications for the subject project have been reviewed and found to be satisfactory. Authorization is hereby granted for
construction of facilities at the above referenced plant discharging treated effluent into the Rocky River in the Yadkin-Pee Dee
River Basin. Specifically, this Authorization to Construct authorizes the construction of a 10,100 gallon flow equalization
tank and a 21,000 gallon off-spec tank(also to be used for flow equalization purposes), a lamella clarifier for solids removal,
two pH neutralization tanks, each with a volume of 1700 gallons, a 400 gallon neutralization transfer pump tank, a 42,000
gallon process effluent tank, a sludge thickening tank, and a 3,000 gallon effluent lift station.
This Authorization to Construct is issued in accordance with Part III, Paragraph A of NPDES Permit No.
NC0086169 issued October 27, 1997, and shall be subject to revocation unless the wastewater treatment facilities are
constructed in accordance with the conditions and limitations specified in Permit No.NC0086169.
The sludge generated from these treatment facilities must be disposed of in accordance with G.S. 143-215.1 and in a
manner approved by the North Carolina Division of Water Quality. •
In the event that the facilities fail to perform satisfactorily, including the creation of nuisance conditions, the
Permittee shall take immediate corrective action, including those as may be required by this Division, such as the
construction of additional or replacement wastewater treatment or disposal facilities.
The Mooreville Regional Office, telephone number(704) 663-1699, shall be notified at least forty-eight (48) hours
in advance of operation of the installed facilities so that an in-place inspection can be made. Such notification to the regional
supervisor shall be made during the normal office hours from 8:00 a.m. until 5:00 p.m. on Monday through Friday,
excluding State Holidays.
Upon completion of construction and prior to operation of this permitted facility, a certification must he received
from a professional engineer certifying that the permitted facility has been installed in accordance with the NPDES Permit,
this Authorization to Construct and the approved plans and specifications. Mail the Certification to the Permits and
Engineering Unit, P.O. Box 29535, Raleigh, NC 27626-0535.
Upon classification of the facility by the Certification Commission, the Permittee shall employ a certified
wastewater treatment plant operator to be in responsible charge (ORC) of the wastewater treatment facilities. The operator
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled/10%post-consumer paper

S. Permit No. NC0086169
Authorization to Construct
Midland Fiber Facility
November 14, 1997
Page 2
must hold a certificate of the type and grade at least equivalent to or greater than the classification assigned to the wastewater
treatment facilities by the Certification Commission. The Permittee must also employ a certified back-up operator of the
appropriate type and grade to comply with the conditions of Title 15A, Chapter 8A, .0202. The ORC of the facility must
visit each Class I facility at least weekly and each Class II,III,and N facility at least daily,excluding weekends and holidays,
and must properly manage and document daily operation and maintenance of the facility and must comply with all other
conditions of Title 15A, Chapter 8A, .0202. Once the facility is classified, the Permittee must submit a letter to the
Certification Commission which designates the operator in responsible charge within thirty days after the wastewater
treatment facilities are 50%complete.
A copy of the approved plans and specifications shall be maintained on file by the Permittee for the life of the
faci;ity.
The Operational Agreement between the Permittee and the Environmental Management Commission is incorporated
herein by reference and is a condition of this Permit. Noncompliance with the terms of the Operational Agreement shall
subject the Permittee to all sanctions provided by G. S. 143-215.6 for violation of or failure to act in accordance with the
terms and conditions of this Permit.
Failure to abide by the requirements contained in this Authorization to Construct may subject the Permittee to an
enforcement action by the Division of Water Quality in accordance with North Carolina General Statute 143-215.6A to 143-
215.6C.
The issuance of this Authorization to Construct does not preclude the Permittee from complying with any and all
statutes, rules, regulations, or ordinances which may be imposed by other government agencies (local, state, and federal)
which have jurisdiction.
One(1)set of approved plans and specifications is being forwarded to you. If you have any questions or need
additional information,please contact Mr.Mark McIntire,telephone number(919)733-5083,extension 553.
Sincerely,
4erk.iL,
iu-
. Preston Howard,Jr., P. .
cc: Central Files
NPDES Unit, Permit File
Mooresville Regional Office,Water Quality
Training and Certification Unit