NC0086169_Draft Permit_20190403

ROY COOPER
r Go;erruu
1.
MICHAEL S. REGAN
.; fr, , -- `� sec,em,i
i� e'' LINDA CULPEPPER
* *
NORTH CAROLINA
Environmental Quality
April 3, 2019
Mr. John F. Novotny
Corning, Incorporated
Hp-Me-03-83
Corning,NY 14831
Subject: Draft NPDES Permit NC0086169
Fiber Optic Facility
Grade II Physical Chemical WPCS
Cabarrus County
Dear Mr. Novotny:
The Division has reviewed your request to renew the subject permit. Please review this draft carefully
to ensure your thorough understanding of the information, conditions, and requirements it contains.
The draft permit includes the following significant changes from the existing permit:
1. Language has been updated in Sections A. (1), A. (2), and A. (3), and in Section A. (9) to require
electronic submission of effluent data. Federal regulations require electronic submittal of all
discharge monitoring reports (DMRs).
2. Regulatory citations have been added to the permit.
3. Outfall map has been updated.
4. Facility address has been updated on the cover sheet per the renewal application.
5. Receiving stream characteristics have been updated on the Supplement to Permit Cover Sheet.
6. The facility grade and parameter codes have been added in Sections A. (1), A. (2), and A. (3).
7. Monitoring for copper and chlorides has been removed in Section A. (2) per the reasonable
potential analysis.
8. Monitoring for total hardness has been added in Section A. (3).
9. Footnotes for total residual chlorine have been added in Section A. (1) and updated in Sections
A. (2) and A. (3).
10. Toxicity testing language has been updated in Sections A. (4) and A. (5).
11. Language in Section A. (7) has been updated.
Please note that the receivingstream for Outfall 002 is listed as an impaired waterbodyon the North
p
Carolina 303(d) Impaired Waters List. Addressing impaired waters is a high priority with the Division,
and instream data will continue to be evaluated. If there is noncompliance with permitted effluent limits
and stream impairment can be attributed to your facility, then mitigative measures may be required.
QEQ
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-707-9000

The NC 2007-2014 Water Quality Standard (WQS) Triennial Review was approved by the NC
Environmental Management Committee(EMC) on November 13, 2014. The US EPA subsequently
approved the WQS revisions on April 6, 2016 with some exceptions. The NC Division of Water
Resources NPDES Permitting Unit is required to implement the new dissolved metal standards in all
permits public noticed after April 6, 2016.
The new standards for most metals include acute standards. Further, the freshwater standards for several
metals are expressed as the dissolved form of the metals, and seven metals have hardness-dependent
equations. As a result, the NPDES Permitting Unit will need site-specific effluent hardness data and
instream hardness data, upstream of the discharge, for each facility monitoring these metals in order to
calculate permit limitations. Effluent hardness and instream hardness sampling, upstream of the
discharge, has been added to this permit at a monitoring frequency of quarterly. See Sections A. (2) and
A. (3) Effluent Limitations and Monitoring Requirements.
With this notification, the Division will solicit public comment on this draft permit by publishing a
notice in newspapers having circulation in the general Cabarrus County area, per EPA requirements.
Please provide your comments, if any, to me no later than 30 days after receiving this draft
permit.
Following the 30-day public comment period, the Division will review all pertinent comments and take
appropriate action prior to issuing a final permit. If you have questions concerning the draft, please
contact me at 919-707-3619, or via e-mail [[e-mail]].
Sincerely,
Brianna Young
Compliance and Exp ited Permitting Unit
cc: NPDES Files
Mooresville Regional Office
Wastewater Operator Certification Group
WSS/Aquatic Toxicology Branch

Permit NC0086169
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WATER RESOURCES
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provisions 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,
Corning, Incorporated
is hereby authorized to discharge wastewater and stormwater from a facility located at the
Midland Plant WWTP
14556 U.S. Highway 601 South
Midland
Cabarrus County
to receiving waters designated as an unnamed tributary to Muddy Creek (Outfall 001), an unnamed
tributary to Clear Creek (Outfall 002), and the Rocky River (Outfall 003) in the Yadkin-Pee Dee River
Basin in accordance with effluent limitations, monitoring requirements, and other applicable conditions
set forth in Parts I, II, III, IV, and V hereof.
The permit shall become effective.
This permit and the authorization to discharge shall expire at midnight on October 31, 2023.
Signed this day.
Linda Culpepper
Director, Division of Water Resources
By Authority of the Environmental Management Commission
Pagel of 19

Permit NC0086169
Supplement to Permit Cover Sheet
All previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, requirements, terms, and provisions included herein.
Corning, Incorporated
is hereby authorized to:
1. Continue operation of a 0.107 MGD wastewater treatment facility(Outfall 003) located at the
Midland Plant WWTP off U.S. Highway 601 near Midland in Cabarrus County. The wastewater
treatment facility includes the following treatment components:
• 2 Equalization tanks
• 2 Off-spec tanks
• 3 Lamella clarifiers
• 4 Neutralization tanks
• Chloride stabilization tank
• Surge blend tank
2. After completing the expansion, operate facilities for the discharge of up to 0.142 MGD through
Outfall 003; and
3. Discharge stormwater from a wet retention pond into an unnamed tributary of Muddy Creek
(Outfall 001 —See Part I, Section A. (7) Stormwater Monitoring, Controls and Limitations for
Permitted Discharges, for monitoring requirements) [Stream Segment: 13-17-16]; discharge
stormwater, boiler blowdown, and non-contact cooling water from a wet detention pond into an
unnamed tributary to Clear Creek (Outfall 002) [Stream Segment: 13-17-17]; and discharge process
wastewater, cooling tower blowdown, and carbon filter backwash from the above referenced
treatment works at the location specified on the attached map into the Rocky River(Outfall 003)
[Stream Segment: 13-17]. All receiving streams are waterbodies currently classified C waters in
subbasin 03-07-12 [HUC: 030401050] in the Yadkin-Pee Dee River Basin.
Page 2 of 19

Permit NC0086169
PART I.
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS (Outfall 002)
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Physical Chemical WPCS [15A NCAC 08G .0302]
During the period beginning on the effective date of this permit and lasting until permit expiration, the
Permittee is authorized to discharge from Outfall 002 [Stormwater, Humidification Boiler Blowdown,
and Non-Contact Cooling Water]. Such discharges shall be limited and monitored' by the Permittee as
specified below:
PARAMETER LIMITS MONITORING REQUIREMENTS
Monthly Daily Measurement Sample Sample
Parameter Codes Average Average Frequency Type Location z
Flow 50050 Semi-annually Estimate Effluent
Temperature 3 00010 Semi-annually Grab Effluent
Total Residual Chlorine a 50060 Semi-annually Grab Effluent
pH 00400 >6.0 and<9.0 Standard Units Semi-annually Grab Effluent
Notes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (9)].
2. The effluent for this outfall shall mean a point upstream of the mixing point with stormwater.
3. The temperature of the effluent will be regulated so that the temperature of the receiving stream does not
increase more than 2.8°C above the natural water temperature. Receiving water temperature will not exceed a
maximum of 32°C.
4. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However,the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory(including field certified), even if these values fall below 50 µg/L.
There shall be no chromium, zinc or copper added to the treatment system except as pre-approved
additives to biocidal compounds.
The permittee shall obtain authorization from the Division prior to the use of biocide in the cooling
water. The permittee shall notify the Director in writing at least ninety(90) days prior to instituting use
of any additional biocide in the treatment system which may be toxic to aquatic life (other than biocides
previously reported to the Division). Such notification shall include completion of Biocide Worksheet
101 and a map indicating the discharge point and receiving stream.
Conditions related to the stormwater portion of this outfall can be found in Part I, Section A. (7)
Stormwater Monitoring, Controls and Limitations for Permitted Discharges.
See Part I, Section A. (8) - Annual Shutdown Procedures Condition
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 3 of 19

Permit NC0086169
A. (2) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
(Outfall 003 at 0.107 MGD)
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Physical Chemical WPCS [15A NCAC 08G .0302]
During the period beginning on the effective date of the permit and lasting until expansion beyond
0.107 MGD or permit expiration, the Permittee is authorized to discharge from Outfall 003 [Industrial
Process Wastewater, Non-contact Cooling Water, and Carbon Filter Backwash]. Such discharges shall
be limited and monitored' by the Permittee as specified below:
PARAMETER LIMITS MONITORING REQUIREMENTS
Monthly Daily Measurement Sample Sample
Parameter Codes Average Average Frequency Type Location 2
Flow 50050 0.107 MGD Continuous Estimate Effluent
Total Residual Chlorine 3 50060 28 pg/L 2/Week Grab Effluent
Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
Temperature4 00010 Weekly Grab Effluent
pH 00400 >6.0 and<9.0 Standard Units Weekly Grab Effluent
Total Phosphorus C0665 Quarterly Composite Effluent
Chronic Toxicity 5 TGP3B Quarterly Composite Effluent
Notes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (9)].
2. The compliance point for flow shall be upstream of the non-contact cooling water and boiler blowdown
internal outfall. The compliance point for all other parameters shall be at the Rocky River discharge location.
3. The Division shall consider all effluent TRC values reported below 50 µg/L to be in compliance with the
permit. However,the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory(including field certified), even if these values fall below 50 pig/L.
4. The temperature of the effluent will be regulated so that the temperature of the receiving stream does not
increase more than 2.8°C above the natural water temperature. Receiving water temperature will not exceed a
maximum of 32°C.
5. Chronic Toxicity(Ceriodaphnia)at 1.0%; January, April,July and October[see Section A. (4)].
See Part I, Section A. (8) - Annual Shutdown Procedures Condition
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Page 4 of 19

Permit NC0086169
A. (3) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
(Outfall 003 at 0.142 MGD)
[15A NCAC 02B .0400 et seq., 02B .0500 et seq.]
Grade II Physical Chemical WPCS [15A NCAC 08G .0302]
During the period beginning upon expansion beyond 0.107 MGD and lasting until expiration, the
Permittee is authorized to discharge from Outfall 003 [Industrial Process Wastewater,Non-contact
Cooling Water, and Carbon Filter Backwash]. Such discharges shall be limited and monitored by the
Permittee as specified below:
PARAMETER LIMITS MONITORING REQUIREMENTS
Parameter Codes Monthly Daily Measurement Sample Sample
Average Average Frequency Type Location 2
Flow 50050 0.142 MGD Continuous Estimate Effluent
Total Residual Chlorine 3 50060 28 pg/L 2/Week Grab Effluent
Total Suspended Solids C0530 30.0 mg/L 45.0 mg/L Weekly Composite Effluent
Temperature 4 00010 Weekly Grab Effluent
pH 00400 >6.0 and<9.0 Standard Units Weekly Grab Effluent
Chloride 00940 Quarterly Composite Effluent
Total Copper 01042 Quarterly Grab Effluent
Total Phosphorus C0665 Quarterly Composite Effluent
Hardness—Total as 5 00900 Monitor&Report Quarterly Composite Effluent
[CaCO3 or(Ca+Mg)]
Hardness—Total as 6 00900 Monitor&Report Quarterly Grab Upstream
[CaCO3 or(Ca+Mg)]
Chronic Toxicity, TGP3B Quarterly Composite Effluent
Notes:
1. The permittee shall submit discharge monitoring reports electronically using the NC DWR's eDMR
application system [see Section A. (9)].
2. The compliance point for flow shall be upstream of the non-contact cooling water and boiler blowdown
internal outfall. The compliance point for all other parameters shall be at the Rocky River discharge location.
3. The Division shall consider all effluent TRC values reported below 50 j.tg/L to be in compliance with the
permit. However,the Permittee shall continue to record and submit all values reported by a North Carolina
certified laboratory(including field certified),even if these values fall below 50 µg/L.
4. The temperature of the effluent will be regulated so that the temperature of the receiving stream does not
increase more than 2.8°C above the natural water temperature. Receiving water temperature will not exceed a
maximum of 32°C.
5. Effluent hardness sampling should be performed in conjunction with testing for hardness dependent metals
(cadmium, copper, lead, nickel, silver, and zinc).
6. The Permittee shall sample instream hardness,upstream of the facility's discharge. The sample shall be
representative of the hardness in the receiving stream. If the Permittee is a member of the Monitoring
Coalition Program, sampling for instream hardness may be waived as long as the Monitoring coalition agrees
to sample hardness at the nearest upstream location,at a minimum frequency of quarterly, and the Permittee
has obtained approval from DWR-NPDES Permitting Unit that the upstream station being monitored by the
Coalition is representative of the receiving stream for this discharge. The Permittee is responsible for
submitting instream hardness test results with its permit renewal application package. If Coalition
membership is cancelled or the Coalition terminates instream hardness sampling at the approved station,the
Page 5 of 19

Permit NC0086169
Permittee will immediately notify the Division and resume sampling for instream hardness,upstream of its
discharge.
7. Chronic Toxicity(Ceriodaphnia)at 1.7%; January, April,July and October[see Section A. (5)].
See Part I, Section A. (8) - Annual Shutdown Procedures Condition
There shall be no discharge of floating solids or visible foam in other than trace amounts.
•
Page 6 of 19

Permit NC0086169
A. (4) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY test at 0.107 MGD)
[15A NCAC 02B .0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 1.0 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in
the"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised December 2010, or
subsequent versions or"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. The tests will be performed during the months of
January, April,July, and October. These months signify the first month of each three-month toxicity
testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during
representative effluent discharge and 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 II Chronic Whole
Effluent Toxicity Test Procedure" (Revised-December 2010) 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 TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-
3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be 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(AT) 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
Water Sciences Section 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. Assessment of toxicity compliance is based on the toxicity
Page 7 of 19

Permit NC0086169
testingquarter, which is the three month time interval that begins on the first dayof the month in which
�
toxicity testing is required by this permit and continues until the final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts to the receiving stream, this permit may be re-opened and
modified to include alternate monitoring requirements or limits.
NOTE: 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 be completed no later
than the last day of the month following the month of the initial monitoring.
•
Page 8 of 19

Permit NC0086169
A. (5) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY test at 0.142 MGD)
[15A NCAC 02B .0200 et seq.]
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 1.7 %.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in
the"North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure,"Revised December 2010, or
subsequent versions or"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised- December 2010) or subsequent versions. The tests will be performed during the months of
January, April,July, and October. These months signify the first month of each three-month toxicity
testing quarter assigned to the facility. Effluent sampling for this testing must be obtained during
representative effluent discharge and 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 II Chronic Whole
Effluent Toxicity Test Procedure" (Revised-December 2010) 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 TGP3B for the pass/fail results and THP3B for the Chronic Value. Additionally, DWR Form AT-
3 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Resources
Water Sciences Section/Aquatic Toxicology Branch
1621 Mail Service Center
Raleigh,NC 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Water Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be 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(AT) 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
Water Sciences Section 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. Assessment of toxicity compliance is based on the toxicity
Page 9 of 19

Permit NC0086169
testing quarter, which is the three month time interval that begins on the first day of the month in which
toxicity testing is required by this permit and continues until the final day of the third month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division
of Water Resources indicate potential impacts to the receiving stream, this permit may be re-opened and
modified to include alternate monitoring requirements or limits.
NOTE: 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 be completed no later
than the last day of the month following the month of the initial monitoring.
Page 10 of 19

Permit NC0086169
A. (6) BIOLOGICAL MONITORING CONDITION
[G.S. 143-215.3(a)(2)]
After completion of the expansion to 0.142 MGD, the Permittee shall conduct an upstream and
downstream benthic macroinvertebrate survey. This survey should be conducted between the months of
June and September. A report of the survey's findings shall be included with the next permit renewal
application after the expansion is completed.
For technical assistance regarding this permit requirement, please contact the Division's Biological
Assessment Unit at(919) 733-6946.
A. (7) STORMWATER MONITORING, CONTROLS,AND LIMITATIONS FOR
PERMITTED DISCHARGES
[143-215(a)]
FINAL LIMITATIONS AND CONTROLS FOR STORMWATER DISCHARGES
No later 180 days prior the expiration date of this permit, the permittee shall submit an NPDES
stormwater permit application to the Division of Energy, Mineral, and Land Resources
(DEMLR). During the period beginning on the effective date of the permit and lasting until expiration,
the permittee is authorized to discharge stormwater associated with industrial activity from outfalls 001
and 002. Such discharges shall be controlled, limited, and monitored as specified below:
1. Stormwater Pollution Prevention Plans
The permittee shall develop and implement a Stormwater Pollution Prevention Plan (SPPP). The
SPPP shall be maintained on site unless exempted from this requirement by the Division. The SPPP
is public information in accordance with Part II, Section E.10. of this permit. The SPPP shall
include, at a minimum, the following items:
a) Site Overview. The Site Overview shall provide a description of the physical facility and the
potential pollutant sources that may be expected to contribute to contamination of stormwater
discharges. The Site Overview shall contain the following:
a. A general location map (USGS quadrangle map or appropriately drafted equivalent
map), showing the facility's location in relation to transportation routes and surface
waters; the name of the receiving waters to which the stormwater outfalls discharge, or if
the discharge is to a municipal separate storm sewer system, the name of the municipality
and the ultimate receiving waters; and accurate latitude and longitude of the points of
stormwater discharge associated with industrial activity. The general location map (or
alternatively the site map) shall identify whether any receiving waters are impaired (on
the state's 303(d) list of impaired waters) or if the site is located in a watershed for
which a TMDL has been established, and what the parameters of concern are.
b. A narrative description of storage practices, loading and unloading activities, outdoor
process areas, dust or particulate generating or control processes, and waste disposal
Page 11of19

Permit NC0086169
practices. A narrative description of the potential pollutants that could be expected to be
present in the stormwater discharge from each outfall.
c. A site map drawn at a scale sufficient to clearly depict: the site property boundary; the
stormwater discharge outfalls; all on-site and adjacent surface waters and wetlands;
industrial activity areas (including storage of materials, disposal areas, process areas,
loading and unloading areas, and haul roads); site topography and finished grade; all
drainage features and structures; drainage area boundaries and total contributing area for
each outfall; direction of flow in each drainage area; industrial activities occurring in
each drainage area; buildings; stormwater Best Management Practices (BMPs); and
impervious surfaces. The site map must indicate the percentage of each drainage area that
is impervious, and the site map must include a graphic scale indication and north arrow.
d. A list of significant spills or leaks of pollutants during the previous three (3) years and
any corrective actions taken to mitigate spill impacts.
e. Certification that the stormwater outfalls have been evaluated for the presence of non-
stormwater discharges. The permittee shall re-certify annually that the stormwater
outfalls have been evaluated for the presence of non-stormwater discharges. The
certification statement will be signed in accordance with the requirements found in Part
II, Section B.11.
b) Stormwater Management Strategy. The Stormwater Management Strategy shall contain a
narrative description of the materials management practices employed which control or minimize
the stormwater exposure of significant materials, including structural and nonstructural
measures. The Stormwater Management Strategy, at a minimum, shall incorporate the following:
a. Feasibility Study. A review of the technical and economic feasibility of changing the
methods of operations and/or storage practices to eliminate or reduce exposure of
materials and processes to rainfall and run-on flows. Wherever practical, the permittee
shall prevent exposure of all storage areas, material handling operations, and
manufacturing or fueling operations. In areas where elimination of exposure is not
practical, this review shall document the feasibility of diverting the stormwater run-on
away from areas of potential contamination.
b. Secondary Containment Requirements and Records. Secondary containment is
required for: bulk storage of liquid materials; storage in any amount of Section 313 of
Title III of the Superfund Amendments and Reauthorization Act (SARA)water priority
chemicals; and storage in any amount of hazardous substances, in order to prevent leaks
and spills from contaminating stormwater runoff. A table or summary of all such tanks
and stored materials and their associated secondary containment areas shall be
maintained. If the secondary containment devices are connected to stormwater
conveyance systems, the connection shall be controlled by manually activated valves or
other similar devices (which shall be secured closed with a locking mechanism). Any
stormwater that accumulates in the containment area shall be at a minimum visually
observed for color, foam, outfall staining, visible sheens and dry weather flow, prior to
release of the accumulated stormwater. Accumulated stormwater shall be released if
found to be uncontaminated by any material. Records documenting the individual making
Page 12 of 19

Permit NC0086169
the observation, the description of the accumulated stormwater, and the date and time of
the release shall be kept for a period of five (5) years.
c. BMP Summary. A listing of site structural and non-structural Best Management
Practices (BMPs) shall be provided. The installation and implementation of BMPs shall
be based on the assessment of the potential for sources to contribute significant quantities
of pollutants to stormwater discharges and on data collected through monitoring of
stormwater discharges. The BMP Summary shall include a written record of the specific
rationale for installation and implementation of the selected site BMPs. The BMP
Summary shall be reviewed and updated annually.
c) Spill Prevention and Response Procedures. The Spill Prevention and Response Procedures
(SPRP) shall incorporate an assessment of potential pollutant sources based on a materials
inventory of the facility. Facility personnel responsible for implementing the SPRP shall be
identified in a written list incorporated into the SPRP and signed and dated by each individual
acknowledging their responsibilities for the plan. A responsible person shall be on-site at all
times during facility operations that have the potential to contaminate stormwater runoff through
spills or exposure of materials associated with the facility operations. The SPRP must be site
stormwater specific. Therefore, an oil Spill Prevention Control and Countermeasure plan(SPCC)
may be a component of the SPRP, but may not be sufficient to completely address the
stormwater aspects of the SPRP. The common elements of the SPCC with the SPRP may be
incorporated by reference into the SPRP.
d) Preventative Maintenance and Good Housekeeping Program. A preventative maintenance
and good housekeeping program shall be developed and implemented. The program shall
address all stormwater control systems (if applicable), stormwater discharge outfalls, all on-site
and adjacent surface waters and wetlands, industrial activity areas (including material storage
areas, material handling areas, disposal areas, process areas, loading and unloading areas, and
haul roads), all drainage features and structures, and existing structural BMPs. The program shall
establish schedules of inspections, maintenance, and housekeeping activities of stormwater
control systems, as well as facility equipment, facility areas, and facility systems that present a
potential for stormwater exposure or stormwater pollution where not already addressed under
another element of the SPPP. Inspection of material handling areas and regular cleaning
schedules of these areas shall be incorporated into the program. Timely compliance with the
established schedules for inspections, maintenance, and housekeeping shall be recorded and
maintained in the SPPP.
e) Facility Inspections. Inspections of the facility and all stormwater systems shall occur as part of
the Preventative Maintenance and Good Housekeeping Program at a minimum on a semi-annual
schedule, once during the first half of the year(January to June), and once during the second half
(July to December), with at least 60 days separating inspection dates (unless performed more
frequently than semi-annually). These facility inspections are different from, and in addition to,
the stormwater discharge characteristic monitoring at the outfalls required in Part A. (7.)(2.) of
this Section(Qualitative Monitoring).
f) Employee Training. Training programs shall be developed and training provided at a minimum
on an annual basis for facility personnel with responsibilities for: spill response and cleanup,
preventative maintenance activities, and for any of the facility's operations that have the potential
Page 13 of 19

Permit NC0086169
to contaminate stormwater runoff. The facility personnel responsible for implementing the
training shall be identified, and their annual training shall be documented by the signature of
each employee trained.
g) Responsible Party. The SPPP shall identify a specific position or positions responsible for the
overall coordination, development, implementation, and revision of the SPPP. Responsibilities
for all components of the SPPP shall be documented and position assignments provided.
h) SPPP Amendment and Annual Update. The permittee shall amend the SPPP whenever there is
a change in design, construction, operation, site drainage, maintenance, or configuration of the
physical features which may have a significant effect on the potential for the discharge of
pollutants to surface waters. All aspects of the SPPP shall be reviewed and updated on an
annual basis. The annual update shall include:
a. an updated list of significant spills or leaks of pollutants for the previous three (3) years,
or the notation that no spills have occurred (element of the Site Overview);
b. a written re-certification that the stormwater outfalls have been evaluated for the
presence of non-stormwater discharges (element of the Site Overview);
c. a documented re-evaluation of the effectiveness of the on-site stormwater BMPs (BMP
Summary element of the Stormwater Management Strategy).
d. a review and comparison of sample analytical data to benchmark values (if applicable)
over the past year, including a discussion about Tiered Response status. The permittee
shall use the Annual Summary Data Monitoring Report (DMR) form, available from the
Stormwater Permitting Program's website(See `Monitoring Forms' here:
https://deq.nc.gov/about/divisions/energy-mineral-1 and-resources/npdes-industrial-
stormwater).
i) The Director may notify the permittee when the SPPP does not meet one or more of the
minimum requirements of the permit. Within 30 days of such notice, the permittee shall submit a
time schedule to the Director for modifying the SPPP to meet minimum requirements. The
permittee shall provide certification in writing (in accordance with Part II, Section B.1 1.) to the
Director that the changes have been made.
j) SPPP Implementation. The permittee shall implement the Stormwater Pollution Prevention
Plan and all appropriate BMPs to prevent contaminants from entering surface waters via
stormwater. Implementation of the SPPP shall include documentation of all monitoring,
measurements, inspections, maintenance activities, and training provided to employees,
including the log of the sampling data and of actions taken to implement BMPs associated with
the industrial activities, including vehicle maintenance activities. Such documentation shall be
kept on-site for a period of five(5) years and made available to the Director or the Director's
authorized representative immediately upon request.
2. Qualitative Monitoring Requirements
Qualitative monitoring requires a qualitative visual inspection of each stormwater outfall, regardless
of representative outfall status, for the purpose of evaluating the effectiveness of the Stormwater
Pollution Prevention Plan (SPPP) and assessing new sources of stormwater pollution. No analytical
tests are required. Qualitative monitoring of stormwater outfalls must be performed semi-annually
Page 14 of 19

Permit NC0086169
during a measurable storm event(unless the permittee is required to perform further qualitative
sampling per the Qualitative Monitoring Response, below).
A measurable storm event is a storm event that results in an actual discharge from the permitted
site outfall. The previous measurable storm event must have been at least 72 hours prior. The 72-
hour storm interval does not apply if the permittee is able to document that a shorter interval is
representative for local storm events during the sampling period, and the permittee obtains approval
from the local Regional Supervisor(See Part V., Definitions).
Inability to sample because of adverse weather conditions must be documented in the SPPP and
recorded on the DMR (see Adverse Weather in Part V., Definitions). Only SDOs discharging
stormwater associated with industrial activity must be monitored(see Part V., Definitions).
In the event an atypical condition is noted at a stormwater discharge outfall, the permittee shall
document the suspected cause of the condition and any actions taken in response to the discovery.
This documentation will be maintained with the SPPP.
Stormwater Discharge
Characteristics Frequency 1 Monitoring Type 2 Monitoring Location 3
Color Semi-annual Visual SDO
Odor Semi-annual Observation SDO
Clarity Semi-annual Visual SDO
Floating Solids Semi-annual Visual SDO
Suspended Solids Semi-annual Visual SDO
Foam Semi-annual Visual SDO
Oil Sheen Semi-annual Visual SDO
Other obvious indicators of Semi-annual Visual SDO
stormwater pollution
1. Frequency: The first qualitative observation during the term of the permit must be
performed within the first six months of the permit term and during the initial analytical
monitoring event(applicable to outfall 002). All subsequent qualitative monitoring will
be performed twice per year(spaced at least 60 days apart) during a measureable
storm event.
2. Monitoring Type: Monitoring requires a qualitative observation of each stormwater
outfall. No analytical testing or sampling is required.
3. SDO: effluent at outfalls 001 and 002.
A minimum of 60 days must separate monitoring events, unless additional sampling has been
instituted as part of the Qualitative Monitoring Response below.
If the permittee's qualitative monitoring indicates that existing stormwater BMPs are ineffective, or
that significant stormwater contamination is present, the permittee shall investigate potential causes,
evaluate the feasibility of corrective actions, and implement those corrective actions within 60 days,
per the Qualitative Monitoring Response that follows. A written record of the permittee's
investigation, evaluation, and response actions shall be kept in the Stormwater Pollution Prevention
Plan.
Page 15 of 19

Permit NC0086169
Qualitative Monitoring Response
Qualitative monitoring is for the purposes of evaluating SPPP effectiveness, assessing new sources
of stormwater pollution, and prompting the permittee's response to pollution. If the permittee
repeatedly fails to respond effectively to correct problems identified by qualitative monitoring, or
if the discharge causes or contributes to a water quality standard violation, DWR may but is not
limited to:
• require that the permittee revise, increase, or decrease the monitoring frequency
(analytical or qualitative) for the remainder of the permit;
• require the permittee to install structural stormwater controls;
• require the permittee to implement other stormwater control measures;
• require the permittee to perform upstream and downstream monitoring to characterize
impacts on receiving waters; or
• require the permittee implement site modifications to qualify for a No Exposure
Exclusion.
A. (8) ANNUAL SHUTDOWN PROCEDURES CONDITION
[G.S. 143-215.1(b)]
On an annual basis, the permittee is permitted to discharge up to 250,000 gallons of non-contact cooling
water and flush water, from the two cooling tower basins, through Outfall 002. The semi-annual
monitoring associated with Outfall 002 shall coincide with this event. Corning Incorporated shall
develop a HVAC Cooling Tower Shutdown Procedure consistent with Betz-Dearborn recommendations.
The HVAC Cooling Tower Shutdown Procedure should include the condition that both cooling towers
will not be flushed at the same time. This procedure shall be kept on site and available for review by
Division staff upon request. Additionally, the time and duration for the discharge of non-contact cooling
water through Outfall 002 shall be recorded in the operations log by the Operator in Responsible Charge
and available for review by the Division upon request.
A. (9) ELECTRONIC REPORTING OF MONITORING REPORTS
[NCGS 143-215.1 (b)]
Federal regulations require electronic submittal of all discharge monitoring reports (DMRs) and program
reports. The final NPDES Electronic Reporting Rule was adopted and became effective on December
21, 2015.
NOTE: This special condition supplements or supersedes the following sections within Part II of this
permit(Standard Conditions for NPDES Permits):
• Section B. (11.) Signatory Requirements
• Section D. (2.) Reporting
• Section D. (6.) Records Retention
• Section E. (5.) Monitoring Reports
Page 16 of 19

Permit NC0086169
1. Reporting Requirements [Supersedes Section D. (2.) and Section E. (5.) (a)1
The permittee shall report discharge monitoring data electronically using the NC DWR's Electronic
Discharge Monitoring Report (eDMR) internet application.
Monitoring results obtained during the previous month(s) shall be summarized for each month and
submitted electronically using eDMR. The eDMR system allows permitted facilities to enter monitoring
data and submit DMRs electronically using the internet. Until such time that the state's eDMR
application is compliant with EPA's Cross-Media Electronic Reporting Regulation(CROMERR),
permittees will be required to submit all discharge monitoring data to the state electronically using
eDMR and will be required to complete the eDMR submission by printing, signing, and submitting one
signed original and a copy of the computer printed eDMR to the following address:
NC DEQ/Division of Water Resources/Water Quality Permitting Section
ATTENTION: Central Files
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
If a permittee is unable to use the eDMR system due to a demonstrated hardship or due to the facility
being physically located in an area where less than 10 percent of the households have broadband access,
then a temporary waiver from the NPDES electronic reporting requirements may be granted and
discharge monitoring data may be submitted on paper DMR forms (MR 1, 1.1, 2, 3) or alternative forms
approved by the Director. Duplicate signed copies shall be submitted to the mailing address above. See
"How to Request a Waiver from Electronic Reporting" section below.
Regardless of the submission method, the first DMR is due on the last day of the month following the
issuance of the permit or in the case of a new facility, on the last day of the month following the
commencement of discharge.
Starting on December 21,2020, the permittee must electronically report the following compliance
monitoring data and reports, when applicable:
• Sewer Overflow/Bypass Event Reports;
• Pretreatment Program Annual Reports; and
• Clean Water Act (CWA) Section 316(b) Annual Reports.
The permittee may seek an electronic reporting waiver from the Division (see"How to Request a
Waiver from Electronic Reporting" section below).
2. Electronic Submissions
In accordance with 40 CFR 122.41(1)(9), the permittee must identify the initial recipient at the time of
each electronic submission. The permittee should use the EPA's website resources to identify the initial
recipient for the electronic submission.
Initial recipient of electronic NPDES information from NPDES-regulated facilities means the entity
(EPA or the state authorized by EPA to implement the NPDES program) that is the designated entity for
receiving electronic NPDES data [see 40 CFR 127.2(b)].
Page 17 of 19

Permit NC0086169
EPA plans to establish a website that will also link to the appropriate electronic reporting tool for each
type of electronic submission and for each state. Instructions on how to access and use the appropriate
electronic reporting tool will be available as well. Information on EPA's NPDES Electronic Reporting
Rule is found at: https://www.federalregister.gov/documents/2015/10/22/2015-24954/national_pollutant-
discharge-elimination-system-npdes-electronic-reporting-rule.
Electronic submissions must start by the dates listed in the"Reporting Requirements" section above.
3. How to Request a Waiver from Electronic Reporting
The permittee may seek a temporary electronic reporting waiver from the Division. To obtain an
electronic reporting waiver, a permittee must first submit an electronic reporting waiver request to the
Division. Requests for temporary electronic reporting waivers must be submitted in writing to the
Division for written approval at least sixty(60) days prior to the date the facility would be required
under this permit to begin submitting monitoring data and reports. The duration of a temporary waiver
shall not exceed 5 years and shall thereupon expire. At such time, monitoring data and reports shall be
submitted electronically to the Division unless the permittee re-applies for and is granted a new
temporary electronic reporting waiver by the Division. Approved electronic reporting waivers are not
transferrable. Only permittees with an approved reporting waiver request may submit monitoring data
and reports on paper to the Division for the period that the approved reporting waiver request is
effective.
Information on eDMR and the application for a temporary electronic reporting waiver are found on the
following web page:
http://deq.nc.gov/about/divisions/water-resources/edmr
4. Signatory Requirements [Supplements Section B. (11.) (b) and Supersedes Section B. (11.) (d)1
All eDMRs submitted to the permit issuing authority shall be signed by a person described in Part II,
Section B. (11.)(a) or by a duly authorized representative of that person as described in Part II, Section
B. (11.)(b). A person, and not a position, must be delegated signatory authority for eDMR reporting
purposes.
For eDMR submissions, the person signing and submitting the DMR must obtain an eDMR user account
and login credentials to access the eDMR system. For more information on North Carolina's eDMR
system, registering for eDMR and obtaining an eDMR user account, please visit the following web
page:
http://deq.nc.gov/about/divisions/water-resources/edmr
Certification. Any person submitting an electronic DMR using the state's eDMR system shall make the
following certification [40 CFR 122.22]. NO OTHER STATEMENTS OF CERTIFICATION WILL BE
ACCEPTED:
"I certify, under penalty of law, that this document and all attachments were prepared under my
direction or supervision in accordance with a system designed to assure that qualified personnel
properly gather and evaluate the information submitted. Based on my inquiry of the person or persons
who manage the system, or those persons directly responsible for gathering the information, the
Page 18 of 19

Permit NC0086169
information submitted is, to the best of my knowledge and belief true, accurate, and complete. I am
aware that there are significant penalties for submitting false information, including the possibility of
fines and imprisonment for knowing violations."
5. Records Retention [Supplements Section D. (6.)]
The permittee shall retain records of all Discharge Monitoring Reports, including eDMR submissions.
These records or copies shall be maintained for a period of at least 3 years from the date of the report.
This period may be extended by request of the Director at any time [40 CFR 122.41].
Page 19 of 19

.M1h...., r , ... ,
• ,
______ _ . „ , H- -- ---- .. ,,, \ , ,.
---,--______ • : _.„,..• ,__, --,-.,,,,......,,,,,
a�31tcr... in
• t
Jr', ,�1 � Q
\ \�Q __"�+�._ _ .-fit 3.. .Midland .w'. oil • nd
•
cr
1 r \ Outfall 001 •` .. ma . .- _ c `'� �,
,,,. ,. .,_ ,
. . . , _ • +.4._ . , _ _.
4
-"1 '56`'. t--� - n S05 - r
•
f ; , C ; _;\
• ( �o + 0 t
o , ', , :
_ 601 )' '-
t
.. 6....-.._ ... — .....-_, i /6
i •
soy . ,y,� ;
-?Cj
t
- * �- 1115 'x • ice\`
' 527 o ' 4 %
- y SGo
) C' «• Soo �; . �' Q-. >'
.
;;'� ` - .,� - ;57 —\ ) ,, ,� Outfall003 '1__ C '
r�., Outfall 002 - _ �,�� s �y;
1
i / '• 9� _ /, �y� �//_ '
\ A 7• l -l ', • �/ 1' i
omsae M :, T
l
�eao ` \]
._ • 52.4 J
a •
soy \ \
71 ---,,c.,,. ,--.-, .;.;: , •, ) 57 .--
_4e"ee a
c - -11?)'-"P"tf --
• l ! 1Fk.'. ght:©20 Nan .-----Geog phic Society, i cubed
Corning, Inc. N !'121MME■ 0A�►i+
Midland Plant WWTP
ai►M1�� i#�����'�`
NPDES Permit NC0086169 A istrik r. rti h r r
Receiving Stream and Segment(001): UT to Muddy Creek; 13-17-16 Facility Location 44 10
Receiving Stream and Segment(002): UT to Clear Creek; 13-17-17 scale not shown41101
Receiving Stream and Segment(003): Rocky River; 13-17 SCALE USGS Quad: Midland (001 and 0.2,Stanfield(003)
River Basin:Yadkin Pee Dee Outfall 001:35.21722°,-80.52083°
1 Sub-Basin:03-07-12
Stream Class:C 1:24,000 Outfall 002:35.20944°,-80.52528°
Cnunty• Caharnts HUC:0304010503 Outfall 003:35.20278°,-80.49694°