NC0086169_Regional Office Historical File Pre 2018

®1� �oTT i�i 4.a Corning Incorporated t 704-569-6100
1�.1`V I G 14556 Hwy 601 South www.corning.com
i i
Midland, NC 28107rfPECEIVEbINCDENR/DyVR
May 7, 2019 11 AY 10 Z '019
WQROS
MOORESVILLE REGIONAL OFFICE
Cindy Moore, Supervisor Aquatic Toxicology Branch
Division of Water Resources
North Carolina Department of Environmental Quality
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Notice of Violation: NC NOV-2019-TX-0020
Dear Ms. Moore:
In response to your March 29 letter, I want to make you aware that we have taken immediate and
appropriate measures to reduce effluent toxicity after the January 2019 quarterly toxicity test
failure. Our facility plan includes removal of toxicants that occur as a result of production
increases. We took immediate actions to reduce toxicity and have accelerated plans for a longer
term, more cost effective method for removal of toxicants. We are pleased to report that our full -
range effluent testing in February and March (enclosures 1 and 2), along with pass/fail effluent
testing in April (enclosure 3) have each resulted in passing toxicity measurements. The February
and March results have already been electronically submitted and the April results will submitted
this week. Corning takes our environmental stewardship seriously and we are applying appropriate
resources to prevent this incident from recurring in the future.
Since
Don L. Hefner
Plant Manager
cc: Wes Bell
Mooresville Regional Office
601 East Center Avenue
Mooresville, NC 28115
Encl. lab reports (3)

Effluent Aquatic Toxicity Report/Phase U Chronic Ceripodaphnia 03/06/19
Facility Coming NPDES#NC 0086169 Pipe# 003 County Cabarrus
Laboratory Performing Test Research al yArAL try, Inc. Comments: Final Effluent
X X
Signature of O.R.C. Si f 10 Supervisor RAL Fs 63457-01/63541-01
Sample Information
Collection start Date
Grab
Composite
(Duration)
Hardness (mg/1)
Spec.Cond. G mhos/cm)
Chlorine (mg/L)
Sample temp. at receipt
Control
Effluent %
O.S
Effluent %
0.75
Effluent %
a
Effluent %
I.S
Effluent %
1:1
Sample l Sample 2 Control
02/25/19 02/27/19
24 hrs. 24 hrs.
.a r, 48
191305 19,300 189
<0.01 0.01
3AO 3.40
Test Start Date End Date Start Time End Time
Information 02/27/19 03/06/19 10:37 AM 9:02 AM
Start Renew 1 Renew 2 Start Renew 1 Renew 2
Treatment 2% 2% 2% Control Control Control
PH Initial 6.94 6.93 6.96 6.93 6.92 6.96
pH Final 7.01 7.02 7.05 7.00 7.01 7.04
D.O. Initial 8.5 8.5 8.6 8.5 8.5 8.6
D.O. Final 8.3 8.2 8.3 8.3 8.2 8A
Temp. initial 24.3 24.2 24.3 24.3 24.2 24.3
Temp. Final 25.2 25.0 25.1 25.2 25.0 25.1
22 21 22 24 23 25 21 25 23 24 23.0
Organism# Chronic Test Results
Final Control Mortality % 0
1 2 3 4 S 6 7 8 9 10 11 12 Mean % Control 3rd Brood E6481
Control Repro CV
L L L L L L L L L L 48 Hour Mortality
1 2 3 4 5 6 7 8 9 10 11 12 Mean Control IWC
# Young
Adult
(L)ive (D)-d
# Young 21 23 22 23 21 n 24 22 t 25 1 21 22•4
Adult % Red t
(L)ive (D)ead L L L L L L L 1.L I L I 1 2.61
1 2 3 4 5 6 7 a 9 10 Mean
# Young 23 1 21 1 23 21 22 1 21 1 23 1 21 1 22 22 1 21.9
Adult %Red
(L)ive (D)ead L L L L L L L L L L 4.78
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
Test Start Date End Date Start Time End Time
Information 02/27/19 03/06/19 10:37 AM 9:02 AM
Start Renew 1 Renew 2 Start Renew 1 Renew 2
Treatment 2% 2% 2% Control Control Control
PH Initial 6.94 6.93 6.96 6.93 6.92 6.96
pH Final 7.01 7.02 7.05 7.00 7.01 7.04
D.O. Initial 8.5 8.5 8.6 8.5 8.5 8.6
D.O. Final 8.3 8.2 8.3 8.3 8.2 8A
Temp. initial 24.3 24.2 24.3 24.3 24.2 24.3
Temp. Final 25.2 25.0 25.1 25.2 25.0 25.1
22 21 22 24 23 25 21 25 23 24 23.0
Organism# Chronic Test Results
Final Control Mortality % 0
1 2 3 4 S 6 7 8 9 10 11 12 Mean % Control 3rd Brood E6481
Control Repro CV
L L L L L L L L L L 48 Hour Mortality
1 2 3 4 5 6 7 8 9 10 11 12 Mean Control IWC
# Young
Adult
(L)ive (D)-d
# Young 21 23 22 23 21 n 24 22 t 25 1 21 22•4
Adult % Red t
(L)ive (D)ead L L L L L L L 1.L I L I 1 2.61
1 2 3 4 5 6 7 a 9 10 Mean
# Young 23 1 21 1 23 21 22 1 21 1 23 1 21 1 22 22 1 21.9
Adult %Red
(L)ive (D)ead L L L L L L L L L L 4.78
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
22 21 22 24 23 25 21 25 23 24 23.0
Organism# Chronic Test Results
Final Control Mortality % 0
1 2 3 4 S 6 7 8 9 10 11 12 Mean % Control 3rd Brood E6481
Control Repro CV
L L L L L L L L L L 48 Hour Mortality
1 2 3 4 5 6 7 8 9 10 11 12 Mean Control IWC
# Young
Adult
(L)ive (D)-d
# Young 21 23 22 23 21 n 24 22 t 25 1 21 22•4
Adult % Red t
(L)ive (D)ead L L L L L L L 1.L I L I 1 2.61
1 2 3 4 5 6 7 a 9 10 Mean
# Young 23 1 21 1 23 21 22 1 21 1 23 1 21 1 22 22 1 21.9
Adult %Red
(L)ive (D)ead L L L L L L L L L L 4.78
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
# Young
Adult
(L)ive (D)-d
# Young 21 23 22 23 21 n 24 22 t 25 1 21 22•4
Adult % Red t
(L)ive (D)ead L L L L L L L 1.L I L I 1 2.61
1 2 3 4 5 6 7 a 9 10 Mean
# Young 23 1 21 1 23 21 22 1 21 1 23 1 21 1 22 22 1 21.9
Adult %Red
(L)ive (D)ead L L L L L L L L L L 4.78
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
# Young 21 23 22 23 21 n 24 22 t 25 1 21 22•4
Adult % Red t
(L)ive (D)ead L L L L L L L 1.L I L I 1 2.61
1 2 3 4 5 6 7 a 9 10 Mean
# Young 23 1 21 1 23 21 22 1 21 1 23 1 21 1 22 22 1 21.9
Adult %Red
(L)ive (D)ead L L L L L L L L L L 4.78
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
1 2 3 4 5 6 7 a 9 10 Mean
# Young 23 1 21 1 23 21 22 1 21 1 23 1 21 1 22 22 1 21.9
Adult %Red
(L)ive (D)ead L L L L L L L L L L 4.78
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
1 7 3 d 5 6 7 S 9 1n Mean
# Young 22 20 1 21 23 21 22 20 23 22 21 21.5
Adult % Red
(L)ive (D)ead L L L L L L L L L L 6.52
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
t 7 i d 5 6 7 8 9 10 Mean
# Young 18 19 21 17 19 19 17 1 19 18 21 1 18.8
Adult %Red
(L)ive (D)ead L L L L L L L I L I L I L 18.3
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
9 ] A f f. 7 2 a to KA-en
# Young 3 3 3 4 3 3 4 3 4 3 3.3
Adult %Red
95.7
(L)ive (D)cad L L L L L L L L I L L
A7T: Environmental Sciences Branch
Div. Of Water Quality
MAIL N,C mm
To.. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Signfiicam Y
Final Mortality Significant
or I No Cone.
.eproduction Analysis:
Repro. LOEC = 1% NOEC = 0.75°/
lethod: Dutmett's T-Test
Normal Distrib? yes Method: Kohnogoro
Statistic: 0.8313 Critical: 1.035
Equal Variances? yes Method: Bartlett's
Statistic: 1I.6 Critical: 15.1
lon-Parametric Analysis (if a ip�):
Method: Steels Many One
:ffftuxlL% Rank Sum Critical Sun
Iverall Analysis:
tesult = PASS(FAIL or
'eat LOEC - 2 %: NOEC= 1.5 %
;hronlc Value= 1.73
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195
Should use highest test concentration or
highest concentration with D.O. >5.0 mg/l
I%Reduction from Control Reproduction Mean
Copy DWQjormAT--3 (&91)Rep. 11195

Effluent Aquatic Toxicity Report/Phase II Chronic Ceripodaphnia 03/20/19
lcility Coming NPDES#NC 0086169 Pipe# 003 County Cabarrus
boratory Performing Test Research 44alyool.Labs, lu r Comments: Final Effluent
X
}nature of O.R.C. S!mttlubf LabirSupervisor IRAL #'s 64047-01/64166-01
Sionple Information
Collection Start Date
Grab
Composite
(Duration)
Hardness (mg/1)
Spec.Cond. (µmhos/cm)
Chlorine (mg/L)
Sample temp. at receipt
Control
Efflueut %
0.5
Effluent %
0.75
Effluent %
Effluent %
1.5
Effluent %
E
Sample l
Sample 2
Control
03/11/19
03/13/19
�'_J
. +
24 hrs.
24 hrs.
48
21,070
20,860
192
0.01
0.01
- I
3.40
2.90
-.i
TestStart
Information*
Date
03/13/19
End Date
03/20/19
Start Time
11.49 AM
End Time
8:40 AM
Treatment
pH Initial
PH Final
D.O. Initial
D.O. Final
Temp. initial
Temp. Final
Start
Renew 1
Renew 2
Start
Renew 1
Renew 2
2%
2%
1%
Control
Control
Control
6.96
6.93
6.97
6.95
6.92
6.96
7.04
7.01
7.05
7.03
7.00
7.04
8.6
8.5
8.6
8.6
8.5
9.6
8A
8.2
8.4
8A
9.2
9.4
24.4
24.5
24.4
24.4
24.5
24A
25A
25.1
25.2
25.4
25.1
25.2
21
Chronic Test Results
Organism#
Final Control Mmmlity %%
0
1 2
3
4
5 6
7
8
9
10 11
12 Mean
% Control 3rd Brood
100
22
25
23
24
22
21
24
25
23
23.0
Control Repro CV
6.48
L
L
L
L
L
L
L
L
L
L
48 Hour Mortality
1 2
3
4
5 6
7
a
9
10 11
12 Mean
Control 1WC
# Young
Adult
-)iv. (.)�
# Young
25
21
23
21
24
21
22
1 25
t 22
21
(D)ead
L
L
L
L
L
L
L
L
L
L
L222-5Adult(L)ive
1 2 3 4 5 6 7 8 9 10 Mean
# Young
21
1 22
1 21
22
23
22
20
21
21
22
21.5
Adult
(Lhve Mead
L
L
L
L
L
L
L
L
L
L
% Red
6.52
1 2 3 4 5 6 7 8 9 10 Mean
# Young
21
1 18
1 19
1 19
1211201211191
201
18
19.6
Adult
(L)ive (D)wd
L
L
L
L
ILI
L
L
L
L
L
%Red
14.8
1 2 3 4 5 6 7 8 9 10 Mean
# Young
10
11
10
11
12
10
12
9
11
10
10.6
Adult
% Red
i-
L
I L
I L
I L
I L
I L
I L I
L
I L
I L
53.9
1 7 d S A 7 R a to Min
# Young 0 0 0 0 0 0 0 0 1 0 0LRO
Adult
L ive D D D D D D D D D ::D
A77. Environmental Sciences Branch
Div Of Water Quality
MAIL N.G DENR
To. 1623 Mail Service Center
Raleigh, NC 27699-1623
0 of 10 0 of 0 10
Sigaifr Y t N
Final Mortality Si '8cant
2
% I or I No Conc.
:eoroduction Anaiysis:
Repro. LOEC = 0.75% NOEC = 0.50%
Qethod:
Dunnett's T-Test
Normal Distrib? yes
Method: Shapiro Wilkes
Statistic: 0.941
Critical: 0.93
Equal variances? L
Method: Bartletes
Statistic: 5.26
Critical: 13.3
Rank Sum Critical Sum
Result a PASSIFAIL os
Test LOEC - 1.5 %: NOEC- 1 %
Chronic Value= 1.22 %
• Should use highest test concentration or
highest concentration with D.O. >5.0 mgd
1 % Reduction from Control Reproduction Mean
Copy DWQ form AT-3 (8/91) Rev. 11195

Effluent Toxicity Report Form - Chronic Pass/Fail and Acute LC50 Date: 04/10/19
Facility: CORNING, INC. NPDES#: NCO086169 Pipe#: 003 County: CABARRUS
Laboratory Performing Test: R & A LABORATORIES, INC.
Comments: Final Effluent
X CemnEri.rc _ nrYAratnr in Rpsnonsi e C arae 1 64973-01
I" S at Laboratory Supervisor I * PASSED: 13.10 Reduction * I
Work Order: 64819-01 Environmental Sciences Branch
MAIL ORIGINAL TO: Div. of Environmental Management
N.C. Dept. of EHNR
1621 Mail Service Ctr
Raleigh, North Carolina 27699-1621
uorzn Uaroiina ueriouapania
Chronic Pass/Fail Reproduction Toxicity Test
�ONTROL ORGANISMS 1 2 3 4 5 6 7 8 9 10 11 12
# Young Produced f125122123121122124125121122124122123
Adult (L)ive (D)ead JIL IL IL IL IL IL IL IL IL IL IL IL
affluent %-: 1$
Chronic Test Results
Calculated t = 5.799
Tabular t = 2.508
$ Reduction = 13.14
W Mortality
Avg.Reprod.
0.00
22.83
Control
Control
0.00
19.83
Treatment 2
Treatment 2
nMTMENT 2 ORGANISMS 1 2 3 4 5 6 7 8 9 10 11 12 Control CV
6.147%
# Young Produced 19 20 18 20 19 21 19 22 20 19 21 20 % control orgs
producing 3rd
brood
Adult (L)ive (D)ead L L L •L L L L L L L L L 100%
PASS FAIL
X
Check One
1st sample 1st sample 2nd sample Complete This For Either Test
PH Teat Start Date: 04/03/19
Control 6.95E7.O
6.93 7.02 6.97 7.05 Collection (Start) Date
Sample 1: 04/01/19 Sample 2: 04/03/19
Treatment 2 6.95 6.94 7.04 6.98 7.06 Sample Type/Duration 2nd
1st P/F
s s s Grab Comp. Duration D
t e t e t e I S S
a n a n a n Sample 1 X 24 hrs L A A
r d r d r d I U M M
t t t Sample 2 X 24 hrs T P P
ist sample 1st sample 2nd sample
D.O. Hardness (mg/1) 47 ..............
Control 8.6 8.4 8.6 8.3 8.6 8.4
Spec. Cond.(pmhos) 188 21025 18475
Treatment 2 8.6 8.4 8.6 8.3 8.6 8.4
Chlorine(mg/1) ...... 0.04 0.03
LC50/Acute Toxicity Test Sample temp. at receipt(°C) ....... 3.0 3.2
fmnrtality expressed as W. combining replicates)
r2omctio
ote: Please
Concentration plete This
n Also
Mortality
start/end start/end
LC50 = $ Method of Determination
95%, Con i ence Limits Moving Average Probit _
%; -- $ _ Spearman Karber Other
Organism Tested: Ceriodaphnia dubia Duration(hrs):
Copied from DEM form AT-1 (3/87) rev. 11/95 (DUBIA ver. 4.32)
Control
High
Conc.
DH D.O.

Laserfiche
ROY COOPER
Covcynur
MICHAEL S. R€GAN
St9cmaryy
I, NDA CULPEPPER
Di cror
CERTIFIED MAIL: 7012 2210 0002 3534 9915
Mr. John F. Novotny
Corning Incorporated
14556 US Hwy 601 S
Midland, NC 28107
NORTH CAROLINA
Envirorunental (Quality
March 29, 2019
SUBJECT: NOTICE OF VIOLATION: NC NOV-2019-TX-0020 .
Whole Effluent Toxicity (WET) Testing
NPDES Permit No. N00086169/003
Fiber Optic Facility
Cabarrus County
Dear Mr. Novotny:
RECEIVE DIN CDENR/DWl?
APR a 4 2919
QROS
MOORESVILLE REG10—NAL OFFICE
This is to inform you that a review of your toxicity self -monitoring report forms for January 2019 indicates a
violation of the toxicity limitation specified in your NPDES Permit.
You should take whatever remedial actions are necessary to eliminate the conditions causing the effluent toxicity
violation(s). Your efforts may include conducting a Toxicity Reduction Evaluation (TRE), a site -specific study
designed to identify the causative agents of effluent toxicity, isolate the sources of toxicity, evaluate the
effectiveness of toxicity control options, and confirm reductions in effluent toxicity. Please be aware that North
Carolina General Statutes provide for assessment of civil penalties for violations of NPDES permit limitations and
requirements.
The reverse side of this Notice contains important information concerning your Whole Effluent Toxicity Monitoring
and Reporting Requirements. Please note appropriate mailing addresses forsubmitting your Discharge Monitoring
Reports (DMRs) and Aquatic Toxicity (AT) Test Forms. We encourage you to review this information; if it would be
helpful to discuss this situation or possible solutions to resolve effluent toxicity noncompliance, please contact Ms.
Cindy Moore at [phone] or Ms. Susan Meadows at (919) 743- 8439.
Si cerely,
I
u
Cindy Moore, Supervisor Aquatic Toxicology Branch
Division of Water Resources, NCDEQ
cc: WV?s Belt —--oresvllle Regional Office
Central Files
North Carolina Department of Environmental Quality I Division of Water Resources / Water
Q1�f
fy Sciences Section
4u; 4401 Reedy Creek Road 11621 Mail Service Center I Raleigh, North Carolina 27699-1621
919-743-8400

CORNINGCorning Incorporated t704-569-6100
14556 Hwy 601 South www.corning.com
Midland. NC 28107
RcC EIVEDINCCENRrl= WR
December 14, 2017 N O V 2 0 2 017
`J%r.RCS
f+ OORE,'—V!LL!= REG!OINAL OFFICE
Linda Culpepper, Interim Division Director
Division of Water Resources
North Carolina Department of Environment and Natural Resources
1601 Mail Service Center
Raleigh, North Carolina 27699-1601
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Signature Authority
Dear Ms. Culpepper:
Effective December 13, 2017, I, Don L. Hefner was named Plant Manager of the Corning Concord
Optical Fiber Facility, replacing Veronica H. McRae.
I have delegated signature authority to:
Benjamin C. McMillan
Manager, Operations Support Services
Timothy D. Haley
Environmental Supervisor
for the transmittal of all reports required by NPDES Permit No. NCO086169 to discharge waste
water in accordance with the Federal Water Pollution Control Act. This includes signature
authority for other information requested by the Division of Water Quality regarding NPDES
Permit No. NC0086169.
Sin
Don L. Hefner
Plant Manager
cc: Corey Basinger
Division of Water Resources
Mooresville Regional Office
601 East Center Avenue
Mooresville, NC 28115

CORNING Corning Incorporated t 704-569-6100
14556 Hwy 601 South www.corning.com
Midland. NC 28107
RECEIVEDINCDENRIDWR
JUL 3 12017
July 28, 2017
WQROS
MOORESVILLE REGIONAL OFFICE
Mr. Jay Zimmerman, Director
Division of Water Resources
North Carolina Department of Environment and Natural Resources
1601 Mail Service Center
Raleigh, North Carolina 27699-1601
Re: *orihng ;ncqT,pol atec Concod Fac�l ty
BI PDES:Peirii-'fNC0086169.",
Update�to Signature_Auth6rity=;
Dear Mr. Zimmerman:
Effective December 10, 2014, I, Veronica H. McRae was named Plant Manager of the Corning
Concord Optical Fiber Facility, replacing Kenneth N. Inman.
I have delegated signature authority to:
Benjamin C. McMillan
Manager, Operations Support Services
Timothy D. Haley
Environmental Supervisor
for the transmittal of all reports required by NPDES Permit No. NCO086169 to discharge waste
water in accordance with the Federal Water Pollution Control Act. This includes signature
authority for other infonnation requested by the Division of Water Quality regarding NPDES
Permit No. NC0086169.
Sincerely,
Veronica H. McRae
Plant Manager
cc: Corey Basinger
Division of Water Resources
Mooresville Regional Office
601 East Center Avenue
Mooresville, NC 28115

�i
WaterResources
Environmental Quality
April 4, 2017
Mr. Timothy-D. Haley, EH&S Supervisor
Corning Incorporated
Corning Optical Fiber
Post Office Box 1700
Concord, NC 28026
SUBJECT: Compliance Evaluation Inspection
Midland Plant WWTP
NPDES Permit NCO086169
Cabarrus County, NC
Dear Mr. Haley:
FL111i. L EY COOPER
Governor
M_ICH_ A_EL S. REGAN
Secretary
S. JAY ZUVIMERMAN
Director
On March 29, 2017, Roberto Scheller of this Office conducted a compliance inspection at the
subject facility. This inspection was conducted as a Compliance Evaluation. Inspection (CEI) to
insure compliance with permit requirements and conditions. At the time of inspection facility
appeared to be well maintained and operated. We wish to thank you. and the operating staff for
assistance regarding this inspection.
The enclosed report should.be self-explanatory; however, should you have any questions, please
do not hesitate to contact myself or Roberto Scheller at [phone] or
[e-mail].
Sincerely,
W. Corey Basinger, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDEQ
Enclosed
cc: Damien Cantrell, ORC, email: [e-mail]
Wastewater Branch
File
=-'Nor'thing Compares'=--. -
State of North Carolina I Environmental Quality
1611 Mail Service Center I Raleigh, North Carolina 27699-1611
919-707-9000

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C.20460
OMB No. 2040-0057
/
Wa�2r IC76 ollanCe InSPeCTIOn RePOff
Approval expires 8-31-9F "
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN 2 u 3 I NCO086169 111 12 17/03/29 17 18 i C i 19 i G i 201 I
21-1 -1I I- I I I I I--1 1-1- - I I I I I I I I I I I I I I I I I I I I I I I I I I I I I f 6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 CIA ---- -Reserved— ---
67
1
- 174 751 I I I I I I I80
70 [L_J , j 71 L_j 72 i N 73 I II
L-1 I I
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number) '
10:OOAM 17/03/29
14/05/01
Fiber Optic Facility
14556 US Hwy 601 S
Exit Time/Date
Permit Expiration Date
Midland NC 28107
11:58AM 17/03/29
18/10/31
Name(s) of Onsite Representative(s)lTitles(s)/Phone and Fax Number(s)
Other Facility Data
Damien Duke Cantrell/ORC/704-569-7268/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Veronica H McRae,14556 US Hwy 601 S Midland NC 28107/Plant
Managerf/04-569-6100/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Records/Reports Self -Monitoring Program 0 Facility Site Review
Effluent/Receiving Waters Laboratory
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector(s) Agency/Office/Phone and Fax Numbers Date
rto heller MRO WQ//252-946-6481/
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
W. Corey Basinger MRO WQ//704-235-2194/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
111116
.e
Page#

NPDES yr/mo/day Inspection Type 1
.. 31 NCO0861 s9 I11 12 17/03/29 17 18 1,1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
Page# 2

Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 03/29/2017 Inspection Type: Compliance Evaluation
Permit
Yes. No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new
❑
❑
0
❑
application?
Is the facility as described in the permit?
❑
❑
❑
# Are there any special conditions for the permit?
0
❑
❑
❑
Is access to the plant site restricted to the general public?
M
❑
❑
❑
Is the inspector granted access to all areas for inspection?
0
❑
❑
❑
Comment: Current permit expires on October 31, 2018.
Questions regarding reuse of wastewater refered to David Scholobhm in Raleigh,
Non
Discharge Permitting Unit.
Record Keeping
Yes No NA NE
Are records kept and maintained as required by the permit?
0
❑
❑
❑
Is all required information readily available, complete and current?
0
❑
❑
❑
Are all records maintained for 3 years (lab. reg. required 5 years)?
M
❑
❑
❑
Are analytical results consistent with data reported on DMRs?
0
❑
❑
❑
Is the chain -of -custody complete?
0
❑
❑
❑
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
❑
❑
❑
Has the facility submitted its annual compliance report to users and DWQ?
❑
❑
®
❑
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
❑
❑
M
❑
on each shift?
Is the ORC visitation log available and current?
0
.❑
❑
❑
Is the ORC certified at grade equal to or higher than the facility classification?
M
❑
❑
❑
Is the backup operator certified at one grade less or greater than the facility classification?
0
❑
❑
❑
Is a copy of the current NPDES permit available on site?
0
❑
❑
❑
Facility has copy of previous year's Annual Report on file for review?
❑
❑
M
❑
Comment: Chloride samplinq for 12-2015 was not reported, data collected and to revise subject DMR.
Chain of custody (COC) should indicate samples shipped on ice.
Effluent Sampling
Yes No NA NE
Page# 3

Permit: NCO086169 Owner -Facility: Fiber Optic Facility
Inspection Date: 03/29/2017 Inspection Type: Compliance Evaluation
Effluent Sampling
Yes No NA NE
Is composite sampling flow proportional?
M
❑
❑
❑
Is sample collected below all treatment units?
M
❑
❑
❑
Is proper volume collected?
N
❑
❑
❑
Is the tubing clean?
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
❑
❑
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
N
❑
❑
❑
representative)?
Comment:
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? M ❑ ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ ❑
Comment: Outfalls reviewed during inspection Outfall #001 Stormwater not discharging at time of
inspection (discharge to UT of Muddy Creek) Outfall #002 clear with no visible suspended
soilds or foam at point of discharge (discharge into UT of Clear Creek). Outfall #003
discharge into Rocky River, no foam or floating solids noted at point of discharge.
Page# 4

Wa ter Resources
ENVIRONMENTAL QUALITY
August 25, 2016
Michele Holbrook
Corning Incorporated
310 N. College Road
Wilmington, NC 28405
Subject: NPDES Electronic Reporting Requirements
Fiber Optic Facility
NPDES Permit Number: NCO086169
Dear NPDES Permittee:
PAT MCCRORY
Governor
DONALD R. VAN DER VAART
Secre[ary
S. JAY ZIMMERMAN
RECEIVED/NCDENRRWR
AUG 2 9 2016
WQROS
MOORESVILLE REGIONAL OFFICE
The U.S. Environmental Protection Agency (EPA) recently published the National Pollutant Discharge
Elimination System (NPDES) Electronic Reporting Rule. The rule requires NPDES regulated facilities to
report information electronically, instead of filing written paper reports. The rule does not change what
information is required from facilities. It only changes the method by which information is provided (i.e.,
electronic rather than paper -based).
EPA is phasing in the requirements of the rule over a 5-year period. The two phases of the rule, and their
key milestones, are:
• Phase 1—Starting on December 21, 2016, regulated entities that are required to submit Discharge
Monitoring Reports (DMRs) will begin submitting these reports electronically. If you are currently
reporting your DMR data electronically using eDMR, then you simply need to continue reporting
in the same way as you are now. The key change is that, starting on December 21, 2016,
electronic reporting of DMRs will be required, instead of voluntary.
• Phase 2—Starting on December 21, 2020, regulated entities that are required to submit certain
other NPDES reports will begin submitting these reports electronically. Reports covered in the
second phase include Notices of Intent to discharge in compliance with an NPDES general permit,
Sewer Overflow/Bypass Event Reports, and a number of other NPDES program reports.
Incorporating Electronic Reporting Requirements into NPDES Permits
The NPDES Electronic Reporting Rule requires authorized NPDES programs to incorporate electronic
reporting requirements into NPDES permits beginning December 21, 2015. Under the new rule, the
electronic reporting process supersedes the paper reporting process. According to our files, your NPDES
permit became effective after November 2013, and should contain the requirement to electronically
report your Discharge Monitoring Reports using NC DWR's eDMR system.
In addition to requiring permittees to report information electronically, the rule also requires permittees
to identify the initial recipient for the NPDES electronic reporting data [see 40 CFR 122.41(I)(9)]. Initial
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919 807 6300

recipient of electronic NPDES information from NPDES-regulated facilities (initial recipient) 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)]. Permittees are required to electronically
submit the required NPDES information to the appropriate initial recipient, as determined by EPA. By July
18, 2016, EPA must identify and publish on its web site and in the Federal Register a listing of initial
recipients by state and by NPDES data group. Once available, you can use EPA's web site to find out or
determine the initial recipient of your electronic submission.
NC DWR has submitted a request to EPA to be the initial recipient for the following NPDES data groups:
1. Discharge Monitoring Reports;
2. General Permit Reports [Notices of Intent to discharge (NOls); Notices of Termination (NOTs)];
3. Pretreatment Program Reports; and
4. Sewer Overflow/Bypass Event Reports
EPA's web site will also link to the appropriate electronic reporting tool for each type of electronic
submission for each state. Instructions on how to access and use the appropriate electronic reporting
tool will be available as well.
For more information on EPA's NPDES Electronic Reporting Rule, visit
http://www2.epa.gov/compliance/final-national-pollutant-discharge-elimination-system-npdes-
electronic-reporting-rule. For more information on electronic reporting to NC DWR, visit
http://deg.nc.gov/about/divisions/water-resources/edmr/npdes-electronic-reporting or contact Vanessa
Manuel at 919-807-6392 or via email at [e-mail].
Sincerely,
Jeffrey O. Pov-pv- +
forS. Jay Zimmerman, P.G.
Cc: NPDES File
Central Files
9 M;oo'dries011- Regiana;l[0`Ff�ice�/ "�a er e uaiity Program

Corning Incorporated t 704-569-6300
14556 Hwy 601 South www.corning.com
Midland, NC 28107
RECEIVEDACCENROWR
JUN 2 2 2016
WQROS
MOORESVILLE REG101"JAL OFFICE
June 20, 2016
NC Division of Water Resources
Attn: Andrew Pitner
610 E. Center Ave, Suite 301
Mooresville, NC 28115
RE: NCO086169
Dear Mr. Pitner,
The Corning Incorporated facility located in Midland, NC, Cabarrus County is submitting
ORC change information as required by North Carolina Administrative Code. Enclosed is a
copy of forms that were e-mailed to WPCSOCC on 6/15/2016:
o Water Pollution Control System Operator Designation Form
The facility is currently operating as a P/CII. Damien Cantrell is the designated ORC. Sheila
Smith, Kirk Hoover, Randy White, and Jordan Whitley are designated as backup ORCs.
If you have any questions concerning this information, please call me at
[phone].
Sincerely,
Timothy D Haley
EH&S Supervisor
Corning Restricted

WATER POLLUTION CONTROL SYSTEM OPERATOR DESIGNATION FORM (WPCSOCC)
NCAC 15A 8G .0201
Press TAB to enter information
Permittee Owner/Officer Name: Veronica H. McRae
Mailing Address: 14456 US Hwy 601 South Phone: [phone]
City: Midland State: NC Zip: 28107
Email Address: [e-mail]
Signature: � �1� �a Date:
Facility Name: Fiber Optic Facility
County:
Cabarrus
Permit # NCO086169
YOU MUST SUBMIT A SEPARATE FORM FOR EACH TYPE AND CLASSIFICATION OF SYSTEM:
Facility Type: PC
Facility Grade: II
OPERATOR IN RESPON61BLE CHARGE (ORC)
Print Full Name: Damien,Duke Cantrell Work Phone: [phone]
Certificate Type: PC Certificate Grade: II Certificate #: 996741
Email Address: [e-mail]
Signature: Date:
"I certify that I agree to my designation as the Operator in Responsible Charge for the facility noted. I understand and will abide by the
rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result it
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC
Print Full Name: Jordan Timothy Whitley Work Phone: [phone]
Certificate Type: PC Certificate Grade: I Certificate #:1003104
Email Address: [e-mail]
Signature: Date: '5 `/f
"I certify that I agree to my designation as a Back-up Opera -tor in Responsible Charge for the facility noted. I understand and will abide bf
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result ir.
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Mail, fax or email WPCSOCC, 1618 Mail Service Center, Fax: [phone] Email: [e-mail]
ORIGINAL to: Raleigh, NC 27699-1618
Mail or Fax Asheville Fayetteville Mooresville Raleigh
a COPY to: 2090 US Hwy 70 225 Green St., Suite 714 610 E. Center Ave., Suite 301 3800 Barrett Dr.
Swannanoa, NC 28778 Fayetteville, NC 28301-5043 Mooresville, NC 28115 Raleigh, NC 27609
Fax:[phone] Fax:[phone] Fax:[phone] Fax:[phone]
Phone:[phone] Phone:[phone] Phone:[phone] Phone:[phone]
Washington Wilmington Winston-Salem
943 Washington Sq. Mall 127 Cardinal Dr. 45 W. Hanes Mall Rd.
Washington, NC 27889 Wilmington, NC 28405-2845 Winston-Salem, NC 27105
Fax 757-QdA-Q71 S raw! Q1 n-:t5n-7nn4 Faw 336-776-9797

WPCSOCC Operator Designation Form (continued) Page
Facility Name: Fiber Optic Facility Permit M NCO086169
BACKUP ORC
Print Full Name: Randy Jason White Work Phone: [phone]
Certificate Type: PC
Email Address: [e-mail]
Signature:
Certificate Grade: I
Certificate M 1002736
Date:
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System OperatorsCertifrcation Commission."
BACKUP ORC
Print Full Name: Kirk Alexander Hoover Work Phone: [phone]
Certificate Type: PC Certificate Grade: I Certificate #: 993370
Email Address: [e-mail]
Signature: ,% �{Qt,,r�`)o e� Date: �j� ZC) `2,01 L
"I certify that / agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. / understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
BACKUP ORC j
Print Full Name: Sheila B Smith Work Phone: [phone]
Certificate Type: PC
Email Address: [e-mail]
Certificate Grade: II
Certificate #: 28913
Signature: Date: �p
"/ certify that i agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. / understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
Print Full Name:
Certificate Type: Select
Email Address:
Signature:
BACKUP ORC
Work Phone:
Certificate Grade: Select Certificate #:
Date:
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. i understand and will abide by
the rules and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."

?-
MCDENR
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald van der Vaart
Governor Secretary
July 31, 2015
Mr. Tim Haley, EH&S Supervisor
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Subject: Toxicity Test Results
Corning, Inc. —Midland Plant WWTP
NPDES Permit No. NC0086169
Cabarrus County
Dear Mr. Haley:
Enclosed is a copy of the toxicity test results relative to the samples collected at the subject facility (Outfall
003) on July 7 and 9, 201.5 by Mr. Wes Bell of this Office. Whole effluent samples were collected for use in a
chronic Ceriodaphnia dubia pass/fail toxicity test. The test passed utilizing these samples.
The report should be self-explanatory; however, should you have any questions concerning this report, please
do not hesitate to contact Ms. Carol Hollenkamp at [phone] and/or Mr. Wes Bell at [phone], or at
[e-mail] and wes.bell ct,ncdenr.gov..
Sincerely,
ZV y �
��. Michael L. Parker, Regional Supervisor
Mooresville Regional Office
Water Quality Regional Operations Section
Division of Water Resources, DENR
Enclosure:
Toxicity Test Results
cc: MSC 1617-Central Files/Basement
Susan Meadows, Aquatic Toxicity Unit
Cabarrus Health Alliance
W.
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service:1-877-623-6748
Internet: www.ncwaterquality.org

Division of Water Resources
July 30, 2015
To: Michael Parker
Water Quality Regional Operations, MRO
Through: Cindy A. Moore -
Supervisor, Aqua c Toxicology Branch (ATB)
From: Carol Hollenkamp (/I
Quality Assurance Officer, Aquatic Toxicology Branch (ATB)
Subject: Whole effluent toxicity test results
Corning Midland Fibers Facility
NPDES Permit # NC0086169/003
Cabarrus County
The aquatic toxicity test using flow -proportional composite samples of effluent discharged from the
Corning Midland Fibers Facility has been'completed. Corning Midland Fibers Facility has a permitted
effluent discharge that is 0.107 million gallons per day (MGD) entering the Rocky River (7Q10 of 30
CFS). Whole effluent samples were collected on July 7 and July 9 by Wes Bell and facility representative
Damien Cantrell for use in a chronic Ceriodaphnia dubia pass -fail toxicity test. This test passed.
Toxicity test information follows.
Test Type
Test Concentrations
Test Result
Control Survival
Control Mean Reproduction
Test Treatment Survival
Treatment Mean Reproduction
First Sample pH
First Sample Conductivity
First Sample Total Residual Chlorine
Second Sample pH
Second Sample Conductivity
Second Sample Total Residual Chlorine
3-Brood Ceriodaphnia dubia chronic pass fail
1%
Pass
1.0.0%
19.25 neonates
100% - -
18.36 neonates
8.21 SU
25.6 millimhos/cm
<0.10 mg/L
8.15 SU
25.8 millimhos/cm
<0.10 mg/L
Test results for the above samples indicate that the effluent would not be predicted to have water quality
impacts. These samples were split with Research and Analytical Laboratories, Inc. The test conducted by
Research and Analytical Laboratories, Inc also passed.' Please contact us if you have any questions or if
further effluent toxicity monitoring is desired. We may be reached at [phone].
Basin: YAD12
cc: Central Files
Wes Bell (MRO)
Aquatic Toxicology Branch Water Sciences Section

Division of Water Resources
July 30, 2015
NI au
To: Michael Parker
Water Quality Regional Operations, MRO
Through: Cindy A. Moore
Supervisor, Aqua c Toxicology Branch (ATB)
i
From: Carol Hollenkamp �rl
Quality Assurance Officer, Aquatic Toxicology Branch (ATB)
Subj ect: Whole effluent toxicity test results
Corning Midland Fibers Facility
NPDES Permit # NC0086169/003
Cabarrus County
The aquatic toxicity test using flow -proportional composite samples of effluent discharged from the
Corning Midland Fibers Facility has been completed. Corning Midland Fibers Facility has a permitted
effluent discharge that is 0.107 million gallons per day (MGD) entering the Rocky River (7Q10 of 30
CFS). Whole effluent samples were collected on July 7 and July 9 by Wes Bell and facility representative
Damien Cantrell for use in a chronic Ceriodaphnia dubia pass -fail toxicity test. This test passed.
Toxicity test information follows.
Test Type 3-Brood Ceriodaphnia dubia chronic pass fail
Test Concentrations 1 %
Test Result
Pass
Control Survival
100%
Control Mean Reproduction
19.25 neonates
Test Treatment Survival
100% - -
Treatment Mean Reproduction
18.36 neonates
First Sample pH
8.21 SU
First Sample Conductivity
25.6 millimhos/cm
First Sample Total Residual Chlorine
<0.10 mg/L
Second Sample pH
8.15 SU
Second Sample Conductivity
25.8 millimhos/cm
Second Sample Total Residual Chlorine
<0.10 mg/L
Test results for the above samples indicate that the effluent would not be predicted to have water quality
impacts. These samples were split with Research and Analytical Laboratories, Inc. The test conducted by
Research and Analytical Laboratories, Inc also passed. Please contact us if you have any questions or if
further effluent toxicity monitoring is desired. We may be reached at (919) 743-840L
1 T _i '1:10 1p)
cc: Central Files
Wes Bell (MRO)
Aquatic Toxicology Branch
Mater Sciences Section

Wes
From: Hollenkamp, Carol
Sent: Thursday, July 30, 2015 3:20 PM
To: Parker, Michael
Cc: Bell, Wes; Moore, Cindy
Subject: Toxicity Test Reports
Attachments: West Stanly WWTP_0715.pdf, Corning Midland Fibers Facility_0715.pdf
Attached are the toxicity test reports for West Stanly WWTP and Corning Midland Fibers Facility. If you have any
questions, just let me know.
Thanks,
Carol Hollenkamp
Aquatic Toxicology Branch/Water Sciences Section
North Carolina Division of Water Resources/DENR
1621 Mail Service Center, Raleigh, NC 27699-1621
Please NOTE NEW PHONE #
Phone: [phone]
Fax: [phone]
Website: http://Portal.ncdenr.org/web/wq/ess/atu
E-mail correspondence to and from this address may be subject to the North Carolina Public Records Law and may be
disclosed to third parties.

A a
- F.1 L--E
NCDENR
North Carolina Department of Environment and -Natural Resources -
Pat McCrory Donald van der Vaart
Governor Secretary
May 29, 2015
Mr. Tim Haley, EH&S Supervisor
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Subject: Effluent Sampling Results
Corning, Inc. — Midland .Plant WWTP
NPD.ES .Permit No. NCO086169
Cabarrus County
Dear Mr. Haley:
Enclosed is a copy of the laboratory results for the effluent samples collected during the Compliance
Sampling Inspection performed at the subject facility on April 9, 2015 by Mr. Wes Bell of this Office. Effluent
composite and grab samples were collected at Outfall 003 during this inspection. The facility complied with all
applicable effluent permit limits. Please attach this correspondence with the previously issued inspection report
(dated April 14, 2015) to complete your records.
The report should be self-explanatory; however, should you have any questions concerning this report, please
do not hesitate to contact Mr. Bell at [phone], or at [e-mail].
Sincerely,
Jy Michael L. Parker, Regional Supervisor
Mooresville Regional Office
Water Quality Regional Operations Section
Division of Water Resources, DENR
Enclosure:
Effluent Results
cc: MSC 1617-Central Files/Basement
Cabarrus Health Alliance
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service:1-877-623-6748
Internet: =v.ncwaterquality.org
An Equal Opportunity i Affirmative Action Employer — 30% Reeycledt10% Post Consumer paper

ac18242
NC DWR Water Sciences Section -Chemistry Laboratory Resufts
County:
CABARRUS
Sample ID:
AC18242
River Basin
YADKIN-PEEDEE
PO Number #
15W2071
Report To
MRO " ""DWR
Date Received:
04/10/2015
Collector:
W BELL
Time Received:
08:00
Labworks LoginlD
MSWIFTFinal
Region:
MRO
Division of Water Resources
Report Date:
5/11/15
Sample Matrix:
WASTEWATER
Loc. Type:
EFFLUENT
Final Repo Report Print Date:
05/11/2015
Emergency Yes/No
VisitlD
COC Yes/No
Yes
Loc. Descr.: CORNING, INC MIDLAND WWTP EFFLUENT
11
cati
on ID: NC0086169 Collect Date: 04/09/2015 Collect Time: 09:00 Sample Depth 3
If this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
CAS # Analyte Name PQL Result/ Units Method Analysis Validated by
Qualifier Reference Date
LAB
Sample temperature at receipt by lab
0.4
°C
4/10115
MSWIFT
WET
Residue Suspended in liquid
6.2
6.2 U
mg/L
SM 2540 D-1997
4/15/15
CGREEN
Ion Chromatography
_TITLE_
mg/L
EPA300.0 rev2.1
4/30/15
CGREEN
Fluoride
0.4
0.8 U,P
mg/L
EPA300.0 rev2.1
4130/15
CGREEN
Chloride
1.0
9900
mg/L
EPA 300.0 rev2.1
4/30/15
CGREEN
Bromide
0.4
13
mg/L
EPA 300.0 rev2.1
5/1115
CGREEN
Sulfate
2.0
2700
mg/L
EPA 300.0 rev2.1
4/30/15
CGREEN
NUT
NH3 -as N in liquid
0.02
0.09
mg/L as N
EPA350.1 REV 2
4/10/15
CGREEN
Total Kjeldahl N as N in liquid
0.2
0.68
mg/L as N
EPA 351.2 REV 2
4/16/15
CGREEN
NO2+NO3 as N in liquid
0.02
0.91
mg/L as N
EPA353.2 REV 2
4/10/15
CGREEN
Phosphorus_total as P in liquid
0.02
2.3
mg/L as P
EPA365.1 REV 2
4/10/15
CGREEN
WSS Chemistry Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 [phone]
For a detailed description of the qualifier codes refer to <httD://Dortal.ncdenr.orL/web/Wa/ODs/methods-and-DQls>
Page 1 of 1

County: CABARRUS
River Basin YADKIN-PEEDEE
Report To... MRO
Collector:
W BELL
Region:
MRO
Sample Matrix:
WASTEWATER
Loc. Type:
EFFLUENT
Emergency Yes/No
COC Yes/No
Yes
` U D`lf X rWaterSciences
sion of Water Resources
Final Report
ViSIOD
1 Laboratory results
Sample ID: AC1.8243
PO Number# 15W2072
Date Received: 04116/2015
Time Received:
08:00
Labworks LoginlD
MSWIFT
Final Report Date:
6/20115
Report Print Date:
05/20/2015
Loc. Descr,:.CORNING. INC MIDLAND. WWTP EFFLUENT
Location ID: NC6086169 Collect Dater 04/09/2015 Collect Time: 09:35 Sample Depth 1
!f this report is labeled preliminary report, the results have not been validated. Do not use for Regulatory purposes.
CAS # Analvte Name PQL Result/ Units Method Analysis Validated b
Qualifier Reference Date
LAB
Sample temperature at receipt by lab 0.4 °C 4/10/15 MSWIFT
MET
7440-22-4
Ag by furnace
5.0
5.0 P
ug/L
EPA200.9
5./12115
ES.TAFFO.RD1
7429-90-5
Al by ICP
60
79
ug/L
EPA 200.7
4127/16
ESTAFFORD1
7440-38-2
As by furnace
2.0
2,0 U
ug/L.
EPA200.9
5/11/15
ESTAFFORD1
7440<38-3
Ba by ICP
10
42
ug/L
EPA 200.7
4/27/15
ESTAFFORDI
7440-43-9
Cd by furnace
0.50
0.50 U
ug/L
EPA200 9
5/4/15
ESTAFFORDI
7440-47-3
Cr by ICP
10
15
ug/L
EPA'200.7
4/29/15
ESTAFFORD1
7440-50-8
Cu by ICP
2.0
22
ug/L
EPA 200.7
4129/15
ESTAFFORDI
7439-89-6
Fe by ICP
50.
350
ug/L.
EPA,200.7
4/27/15
ESTAFFORDI
74394776
Hg 245.1
0.2
0.20 U
ug/L
EPA245.1
4114/15
ESTAFFORDI
7440-02-0
Ni by furnace
2.0
40
ug/L
EPA200.9
5/8115
ESTAFFORD1
7439-92-1
Pb by furnace
2:0 .
10 P J2
ug/L
EPA 200.9
516115
ESTAFFORDI
7782 49 2
Se by -furnace
5.0
5.0 U
ug/L
EPA 2Q0.9
.5/5115
ESTAFFORDI
7440-65-6
Zn by ICP
10
270 J2
uglL
EPA 200.7
4/29115
ESTAFFORD1
Sample Comments.
Met:Zn-J2-estimated-spk recovery >130%(138%)
Met:Pb-J2-estimated-LFB recoverp115%0(128%)
WSS Chemistry. Laboratory>> 1623 Mail Service Center, Raleigh, NC 27699-1623 (919)'733-3908
Ford rlgLiiird dnscrlUiion grllm quaiifinr egtlns roPor to'�}lt;tq;%%jinY'tc1 i.1.1C(iCI1T.or�/web/ivaf�tnSltYietf}a�d s-and-na ls%
Page 1 of 1

Water Pollution Control System Operator Designation Form
WPCSOCC
NCAC 15A 8G .0201
Permittee Owner/Officer Name: Cnew l &_l / NCO O Onc fac
Mailing Address: 1455( t` wl ®1 S
City: 1 �->LA,,j C> State: NIC Zip: Z9107 _ Phone #: (`764) G 3 / 0
Email
c
Signature: 44 Date: 3 _
70/
.................................................................................................................................................
Facility Name: Co (Z Permit #: MC 00 F6 ® �
SUBMIT A SEPARATE FORM FOR EACH TYPE SYSTEM!
Facility Tyne/Grade:
Biological WWTP Surface Irrigation
Physical/Chemical Land Application
Collection System
Operator in Responsible Charge (ORC)
Print Full Name:
Certificate
Signature:
one � C f Z Z fo 'R"
Date:
"I certify that I agree to my designation as the Operator in Responsible Charge for the facility noted. I understand and will abide by the rules
and regulations pertaining to the responsibilities of the ORC as set forth in 15A NCAC 08G .0204 and failing to do so can result in Disciplinary
Actions by the Water Pollution Control System Operators Certification Commission."
.................................................................................................................................................
Back -Up Operator in Responsible Charge (BU ORC) 4jn�
Print Full Name: S 6�% I elS e
Certificate Type / Grade / Number: . 91,' Pj IL 2j Work Phone #: (qb 4) Flo 9=(60,3
Signature: �, °� Date: 12) d
"I certify that I agree to my designation as a Back-up Operator in Responsible Charge for the facility noted. I understand and will abide by the
rules and regulations pertaining to the responsibilities of the BU ORC as set forth in 15A NCAC 08G .0205 and failing to do so can result in
Disciplinary Actions by the Water Pollution Control System Operators Certification Commission."
..................................................................................................................................................,
Mail, fax or email the WPCSOCC, 1618 Mail Service Center, Raleigh, NC 27699-I618 Fax: [phone]
original to: Email kcertadm nncdenr aov
Mail or fax a copy to the Asheville
Fayetteville
Mooresville
Raleigh
appropriate Regional Office. 2090 US Hwy 70
225 Green St
610 E Center Ave
3800 Barrett Dr
Swannanoa 28778
Suite 714
Suite 301
Raleigh 27609
Fax: [phone]
Fayetteville 28301-5043
Mooresville 28115
Fax: [phone]
Phone:[phone]
Fax:[phone]
Fax:[phone]
Phone:[phone]
Phone:[phone]
Phone:[phone]
Washington
Wilmington
Winston-Salem
943 Washington Sq Mall
127 Cardinal Dr
585 Waughtown St
Washington 27889
Wilmington 28405-2845
Winston-Salem 27107
Fax:[phone]
Fax:[phone]
Fax:[phone]
Phone:[phone]
Phone:[phone]
Phone:[phone]
Revised 03-2014

CORNING Corning Incorporated t 704-569-6100
14556 Hwy 601 South www.corning.com
Midland, NC 28107
December 10, 2014
DEC 1 1 2014
Mr. Tom Reeder, Director
Division of Water Resources
North Carolina Department of Environment and Natural Resources
1601 Mail Service Center
Raleigh, North Carolina 27699-1601
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Signature Authority
Dear Mr. Reeder:
Effective December 10, 2014,.I, Veronica H. McRae have been named Plant Manager of the
Corning Concord Optical Fiber Facility, replacing Kenneth N. Inman.
I have delegated signature authority to:
John C. Lanier
Manager, Operations Support Services .
Timothy D. Haley
EH&S Supervisor
for the transmittal of all reports required by NPDES Permit No.. NCO086169 to discharge waste
water in accordance with the Federal Water Pollution Control Act. This includes signature
authority for other information requested by the Division of Water Quality regarding NPDES
Permit No.. NC0086169.
Sincerely,
Veronica H.:McRae
Plant Manager
cc: Michael Parker
Division of Water Resources
Mooresville Regional Office:
601 East Center Avenue .
Mooresville; NC 28115

PPPPP'r'
Pat McCrory
Governor
Mr. Tim Haley
Corning Inc.
A
NC®ENR
North Carolina Department of Environment and Natural Resources
November 26, 2014
Subject: Classification of Water Pollution Control System
Corning Inc., Fiber Optic Facility
NCO086169 — Cabarrus County
Dear Mr. Haley:
John E. Skvarla, III
Secretary
20i4
In accordance with North Carolina General Statute § 90A-37, the Water Pollution Control System
Operators Certification Commission is required to classify all water pollution control systems. The
classification of Physical - Chemical Water Pollution Control Treatment Systems, found at 15A
NCAC 8G .0306, was adopted by the Commission to classify water pollution control systems.
The Water Pollution Control System Operators Certification Commission has determined that the
subject facility is classified as a Grade 2 Physical - Chemical Water Pollution Control
Treatment System.
As required by 15A NCAC 8G .0202 and your permit, you must designate a Grade 2 or higher
Physical - Chemical Operator in Responsible Charge (ORC) and a Back-up Operator with at least a
Grade 1 Physical - Chemical certification. If -you wish to change your ORC designations, please
complete and return the enclosed ORC Desianation Form to this office via USPS or email to
[e-mail]. If there are no changes required in designations, there is no need to return
the form.
If you have any questions concerning this classification or the designation of operators, please
contact me at 919.707.9108, or via email at [e-mail].
Sincerely,
r0owroaffill
ON
Supervisor, NC Operator Certification Program
Cc: Mooresville Regional Office - WBell
File
1618 Mail Service Center, Raleigh, NC 27699-1618
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Telephone [phone] Fax [phone]
Internet: http://portal.ncdenr.org/web/wq/admin/tacu
An Equal Opportunity \ Affirmative Action Employer— 501% Recycled \ 10% Post Consumer Paper.

PPPPV-
a11, Wes
From: Reid, Steve
Sent: Wednesday, November 26, 2014 11:51 AM
To: [e-mail]
Cc: Bell, Wes
Subject: Reclassification of NCO086169
Attachments: NC0086169_corning_f1iber_0ptics.pdf; ORC Designation Form - Revised 10-2014.pdf
Mr. Haley -
Wes Bell of our Mooresville Regional Office requested a reclassification of the subject facility earlier this month. The
classification has been changed from Physical/Chemical 1(PC1) to PC2.
Attached, please see the classification letter and ORC Designation Form. If you wish to change the ORC designations for
this permit, please complete the form and return to us as noted on the document. Otherwise, we will assume the
designations will remain as they are.
Please contact me if there are any questions or if I may assist you further.
Thanks!
Steve Reid
Supervisor, NC Operator Certification Program
NCDENR / Division of Water Resources
PH:919.707.9108 FX:919.715.2726
[e-mail]
http://Portal.ncdenr.org/web/wq/admin/tacu or ncwater.org/wwcert
Office: 1209 - G (Archdale Bidg)
Mail: 1618 Mail Service Ctr, Raleigh NC 27699-1618
Physical address: 512 N. Salisbury St., Raleigh NC 27601
Email correspondence to and from this address is subject to the North Carolina Public Records Law and may be disclosed to third
parties unless the content is exempt by statute or other regulation.

LE/
F� ZA
CN
North Carolina Department of Environment and Natural Resources
Pat McCrory John E. Skvarla, III
Governor Secretary
July 14, 2014
Mr. Scot M. Lachowicz
Operations Manager
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Subject: Notice of Deficiency — Effluent Limitation
Tracking #: NOD-2014-LV-0064
Corning Midland Plant WWTP
NPDES Permit No. NCO086169
Cabarrus County
Dear Mr. Lachowicz:
A review of the January 2014 self -monitoring report for the subject facility revealed a violation of the
following parameter at Outfall 003:
Date Parameter Reported Value Permit Limit
1/28/14 Total suspended solids 48.0 mg/L 45.0 mglL (Daily maximum)
Remedial actions, if not already implemented, should be taken to correct the causes(s) of the noted
violation. Unresolved violations may lead to the issuance of a Notice of Violation and/or assessments
of civil penalties by the Division of Water Resources.
Thank you for your attention to this matter. If you have questions concerning this matter please do
not hesitate to contact Ms. Marcia Allocco at [phone].
Sincerely,
G a
Michael L. Parker, Regional Supervisor
Water Quality Regional Operations Section
Division of Water Resources, NCDENR
cc: Wastewater Branch
MSC 1617 — Central Files Basement
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service:1-877-623-6748
Internet: hftp://portal,nedenr.org/web/wq

NCDENR
North Carolina Department of Environment and Natural Resources
Division to VJ�t
Beverly Eaves Perdue Charles Wakild, P.E.
Governor Director
January 3, 2013
Mr. Kenneth N. Inman
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Subject: Rescission of Notice of Deficiency — Monitoring Violations
Tracking #: NOD-2012-MV-0088
Corning, Inc. - Concord Facility WWTP
NPDES Permit No. NCO086169
Cabarrus County
Dear Mr. Inman:
Dee Freeman
Secretary
On December 27, 2012, this Office received a response to the above referenced Notice of Deficiency
(NOD). The NOD was issued for failing to monitor total residual chlorine and pH for the week ending
August 4, 2012. Based on the amended DMR received by this office on December 27, 2012, this
office is rescinding the above referenced Notice of Deficiency. If you have questions concerning this
matter, please do not hesitate to contact Ms. Marcia Allocco at [phone].
Sincerely,
Michael Parker
Regional Supervisor
Surface Water Protection
cc: Point Source Branch
MA
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service:1-877-623-6748
Internet: http://portal.ncdenr,org/weblwq
An Equal Opportunity \ Affirmative Action Employer— 30% Recycledl10% Post Consumer paper
NorthCarohna
Nor mrjglt-1

Corning Incorporated t 704-569-6300
CORNING 14556 Hwy 601 South www_corning.com
Midland, NC 28107 RECEIVE®
DIVISION OF WATER QUALITY
March 25, 2011
Ms. Colleen Sullins, Director
Division of Water Quality
North Carolina Department of Environment and Natural resources
1617 Mail Service Center
Raleigh, IBC 27699-1617
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to responsible Official
Dear Ms. Sullins,
MAR 3 0 2011
SWP SECTION
MOORESVlLLE REGIONAL OFFICE
Currently, the designated Responsible Official for the Corning Concord facility is:
Kenneth N. Inman
Site Manager
The following individuals have Signature authority for other information requested by the Division
of Air Quality regarding Water Permit No. NC086169:
Carla Lawrence
Production Superintendant
Rodney A. Morgan
EH&S Supervisor
Timothy D. Daley
Facilities Manager
Please contact Rodney Morgan at [phone] if there are any questions.
Sincerely,
i ley -
Kenneth N. Inman
Site Manager
cc: Mr. Rob Krebs
Division of Water Quality
610 East Center Avenue, Suite 301
Mooresville, IBC 28115

O}�� Corning Incorporated t 704-569-6300
t 14556 Hwy 601 South www.corning.com
Midland, NC 28107
March 25, 2011
Ms. Colleen Sullins, Director
Division of Water Quality
Forth Carolina Department of Environment and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Responsible Official
Dear Ms. Sullins,
RECEIVED
DIVISION OF WATER QUALITY
MAR 3 0 2011
Si'iP SECTION
MOORESVILLE REGIONAL OFFICE
Currently, the designated Responsible Official for the Corning Concord facility is:
Kenneth N. Inman
Site Manager
The following individuals have Signature authority for other information requested by the Division
of Air Quality regarding Water Permit No. NCO86169:
Carla Lawrence
Production Superintendant
Rodney A. Morgan
EH&S Supervisor
Timothy D. Haley
Facilities Manager
Please contact Rodney Morgan at [phone] if there are any questions. -
Sincerely,
4�4
Kenneth N. Inman
Site Manager
cc: Mr. Rob Krebs
Division of Water Quality
610 East Center Avenue, Suite 301
Mooresville, NC 28115

E
.A, �
F�L­
NCDENR //
North Carolina Department of Environment and Natural Resources
Pat McCrory Donald van der Vaart
Governor Secretary
April 14, 2015
Mr. Tim Haley, EH&S Supervisor
Coming, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Subject: Compliance Sampling Inspection
Corning, Inc. — Midland .Plant WViWT.P
NPD.ES Permit No. NCO086169
Cabarrus County
Dear Mr. Haley:
Enclosed is a copy of the Compliance Sampling Inspection Report for the inspection conducted at the
subject facility on April 9, 2015 by Mr. Wes Bell of this Office. Please inform the facility's Operator -in -
Responsible (ORC) of our findings by forwarding a copy of the enclosed report. The results of the effluent samples
collected on April 9, 2015 will be forwarded to you under separate cover.
The report should be self-explanatory; however, should you have any questions concerning this report, please
do not hesitate to contact Mr. Bell at [phone], or at [e-mail].
Enclosure:
Inspection Report
cc: MSC 1617-Central Files/Basement
Cabarrus Health Alliance
►L.
Sincerely,
,1V
�- Michael L. Parker, Regional Supervisor
Mooresville Regional Office
Water Quality Regional Operations Section
Division of Water Resources, DENR
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service:1-877-623-6748
Internet: S"wric%vaterquality.org
Au Equal Opportunity 1 Affirmative Action Emplover-30% Recycled?10% Post Consumer paper

United States Environmental Protection Agency
Form Approved.
Washington, D.C.20460
EPA
OMB No. 2040-0057
Water Compliance Inspection'Report
Approval expires8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 IN 1 2 J5 I 3 I NCO086169 I11 12 15/04/09 17 18 I S J 19 I G j 201
211111 1 1 I I I I II 11 I I I I I I I I I I I I I I I I I I I I I II I I I I I f6
Inspection
Work Days Facility Self -Monitoring Evaluation Rating B1 QA ------ --------Reserved----------
67
2.0 70 IA I 71 [LJj 72 L N J 731 I 174 751 III I 1 �80
LJ L:I
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES.Permit Number)
09:20AM 15/04/09
14/05/01
Fiber Optic Facility
ExitTimelDate
permit Expiration Date
14556 US Hwy 601 S
01:10PM 15/04/09
18/10131
Midland NC 28107
Name(s) of Onsite Representative(s)[Titles(s)/Phone and Fax Number(s)
Other Facility Data
!/!
Damien Duke Cantrell/ORC/704-569-6310/
Name, Address of Responsible Officialffitle/Phone and Fax Number
Contacted
Veronica H McRae,14556 US Hwy 601 S Midland NC 28107/Plant
No
Managerf704-569-6100/
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit E Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory Storm Water
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signatu/re�(s) of I pecto%r(s) Agency/OfficelPhona and Fax Numbers Date
We Bell , /J '� t MRO WQ1f704-663-1699 Ext.2192/�
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page#

NPDES yr/mo/day. Inspection Type (Cont.) 1
31 N00086169 I11 12 15/04/09 17 18 I s I
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
On -Site Representatives:
The Company was represented by the following personnel: Mr. Tim Haley/EH&S Supervisor; Mr.
Damien Cantrell/ORC; and Ms. Sheila Smith/Backup ORC.
STORMWATER:
Site grounds were well maintained. The Stormwater Pollution Prevention Plan (SPPP) records
reviewed during the inspection were organized and well maintained. The SPPP is updated annually
and was last updated in November 2014. The facility has incorporated a SPCC Plan as part of the Spill
Response Plan. Facility inspections were performed in October 2014 and April 2014. Employee
training was performed in December 2014. The facility staff must ensure to document the inspections
of the stormvater drainage system for the presence of non-stormwater discharges.
The facility has designated two stormwater outfalls (001 and 002). Qualitative monitoring at both
outfalls was performed in October 2014 and April 2014. The discharges from both outfalls were clear.
with no floatable solids or foam.
Page#

Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 04/09/2015 Inspection Type: Compliance Sampling
Permit Yes No NA NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new M ❑ ❑ ❑
application?
Is the facility as described in the permit?
0
❑
❑
❑
# Are there any special conditions for the permit?
0
❑
❑
❑
Is access to the plant site restricted to the general public?
M
❑
❑
❑
Is the inspector granted access to all areas for inspection?
❑
❑
❑
Comment: The subject permit expires on 10/31/2018.
The last compliance evaluation inspection was
performed at the facility on 4/14/2011.
Record Keepina
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance -report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator
on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Yes No NA NE
❑
❑
❑
■
❑
❑
❑
■
❑
❑
❑
•
❑
❑
❑
•
❑
❑
❑
01
❑
❑
❑
❑
❑
M
❑
❑
❑
■
❑
■
❑
❑
❑
E
❑
❑
❑
■
❑
❑
❑
❑
❑
❑
❑
❑
■
❑
Comment: The records reviewed during the inspection were organized and well maintained. Discharge
Monitoring Reports (DMRs) were reviewed for the period January 2014 through December
2014 No limit violations were reported and all monitoring frequencies were correct.
Laboratory
Yes No NA NE
Page# 3

Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 04/09/2015 Inspection Type: Compliance Sampling
Laboratory
Yes No NA NE
Are field parameters performed by certified personnel or laboratory?
N
❑
❑
❑
Are all other parameters(excluding field parameters) performed by a certified lab?
0
❑
❑
❑
# Is the facility using a contract lab?
0
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
0
❑
❑
❑
Celsius)?
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
❑
❑
N
❑
Incubator (BOD) set to 20.0 degrees Celsius +/-1.0 degrees?
❑
❑
E
❑
Comment: On -site effluent analvses (DH. temperature, total residual chlorine) are performed under the
Company's laboratory certification #5029. WSACC's Rocky River Regional WWTP
Laboratory (Certification #177), Environment 1 (Certification #10), and R&A Labs
(Certification #34) have also been contracted to provide analytical support.
The laboratory instrumentation used for field analyses appeared to be properly
calibrated/verified and documented.
Effluent Samplina
Yes No NA NE
Is composite sampling flow proportional?
N
❑
❑
❑
Is sample collected below all treatment units?
❑
❑
❑
Is proper volume collected?
❑
❑
❑
Is the tubing clean?
E
❑
❑
❑
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees
N
❑
❑
❑
Celsius)?
Is the facility sampling performed as required by the permit (frequency, sampling type
0
❑
❑
❑
representative)?
Comment: The subiect permit reauires both composite and arab effluent samples. The ORC and staff
must ensure to perform/document periodic aliquot verifications on the composite sampler.
The ORC was in the process of replacing the spigot used for effluent grab samples to
minimize sample aeration.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ❑ ❑ ❑
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable ❑ ❑ ❑
Solids, pH, DO, Sludge Judge, and other that are applicable?
Comment: The wastewater facility appeared to be Droperly operated and well maintained.
The wastewater facility is equipped with in -line monitoring systems that include ORP, pH.
conductivity, and temperature.
Equalization Basins Yes No NA NE
Is the basin aerated? ❑ ❑ 0 ❑
Is the basin free of bypass lines or structures to the natural environment? 0 ❑ ❑ ❑
Page# 4

Permit: NC0086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 04/09/2015 Inspection Type: Compliance Sampling
Equalization Basins Yes No NA NE
Is the basin free of excessive grease? ❑ ❑ M ❑
Are all pumps present? M ❑ ❑ ❑
Are all pumps operable? ❑ ❑ ❑
Are float controls operable? N ❑ ❑ ❑
Are audible and visual alarms operable? ❑ ❑ ❑ 0
# Is basin size/volume adequate? N ❑ ❑ . ❑
Comment:
Secondary Clarifier
Yes No NA NE
Is the clarifier free of black and odorous wastewater?
0
❑
❑
❑
Is the site free of excessive buildup of solids in center well of circular clarifier?
❑
❑
0
❑
Are weirs level?
0
❑
❑
❑
Is the site free of weir blockage?
E
❑
❑
❑
Is the site free of evidence of short-circuiting?
❑
❑
❑
Is scum removal adequate?
❑
❑
❑
Is the site free of excessive floating sludge?
❑
❑
❑
Is the drive unit operational?
❑
❑
❑
Is the return rate acceptable (low turbulence)?
❑
❑
M
❑
Is the overflow clear of excessive solids/pin floc?
N
❑
❑
❑
Is the sludge blanket level acceptable? (Approximately %4 of the sidewall depth)
❑
❑
❑
Comment: The Lamella clarifier was operational and in-service.
Chemical Feed
Yes No NA NE
Is containment adequate?
❑
❑
❑
Is storage adequate?
0
❑
❑
❑
Are backup pumps available?
M
❑
❑
❑
Is the site free of excessive leaking?
0
❑
❑
❑
Comment:
De -chlorination Yes No NA NE
Type of system ? Liquid
Is the feed ratio proportional to chlorine amount (1 to 1)? ❑ ❑ N ❑
Is storage appropriate for cylinders? ❑ ❑ ❑
Page# 5

Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 04/0912015 Inspection Type: Compliance Sampling
De -chlorination Yes No NA NE
# Is de -chlorination substance stored away from chlorine containers? ❑ ❑ 0 ❑
Are the tablets the proper size and type? ❑ ❑ 0 ❑
Comment: Aqueous sodium bisulfite is used for dechlorination.
Are tablet de -chlorinators operational? ❑ ❑ 0 ❑
Number of tubes in use?
Comment:
Flow Measurement- Effluent
Yes No NA NE
# Is flow meter used for reporting?
0
❑
❑
❑
Is flow meter calibrated annually?
M
❑
❑
❑
Is the flow meter operational?
0
❑
❑
❑
(If units are separated) Does the chart recorder match the flow meter?
❑
❑
0
❑
Comment: The flow meter for Outfall 003 is calibrated/verified twice Der vear and was last
calibrated/verified on 3/18/2015 by the Company's I & E personnel. Outfall 003 flows are
measured upstream of the non -contact cooling water and boiler blowdown internal outfall as
specified in the permit. Outfall 002 flows are based on flow calculations (flow rate, duration,
Pump Station - Effluent
Yes No NA NE
Is the pump wet well free of bypass lines or structures?
0
❑
❑
❑
Are all pumps present?
0
❑
❑
❑
Are all pumps operable?
M
❑
❑
❑
Are float controls operable?
0
❑
❑
❑
Is SCADA telemetry available and operational?
❑
❑
❑
Is audible and visual alarm available and operational?
❑
❑
❑
M
Comment: The effluent pump station is equipped with an in -line monitoring system that includes PH,
conductivity, ORR and temperature.
The facility also has the capability of diverting
flows to an "off -spec" tank (adjacent to pump
station) if needed.
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ❑ ❑ ❑
Are the receiving water free of foam other than trace amounts and other debris? ❑ ❑ ❑
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ M ❑
Page# 6

PF
Permit: NC0086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 04/0912015 Inspection Type: Compliance Sampling
Effluent Pipe
Yes No NA NE
Comment: . The effluent appeared clear with no floatable solids or foam. DWR staff collected effluent
samples (composite and grab) at the time of the inspection. The results will be forwarded
under separate cover.
Page#

�� ; r'
NC®ENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
December 17, 2012
Mr. Kenneth N. Inman
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Subject: Notice of Deficiency - Monitoring Limitations
Tracking #: NOD-2012-MV-0088
Corning, Inc. - Concord Facility WWTP
NPDES Permit No. NCO086169
Cabarrus County
Dear Mr. Inman:
A review of the August 2012 self -monitoring report for the subject facility revealed a violation of the
following parameter at Outfall 003:
Date Parameter Reported Value -Monitoring Requirement
Week ending 8/4/12 Total residual chlorine Once on 811/12 .2x/vveek
Week ending 8/4/12 pH None 1 x/week
Remedial actions, if not already implemented, should be taken to correct:.the causes(s) of the noted
violation. Unresolved violations may, lead to the issuance of a Notice of Violation and/or assessments
of civil penalties by the Division of Water Quality.
If the violations are of a continuing nature, not related to operation and/or maintenance problems, and
you anticipate remedial construction activities, then you may wish to consider applying for a Special
Order by Consent (SOC).
If the violations are due to a transcription error (data left off the DMR) please submit an amended
DMR (two copies) to this Office along with a cover letter asking for rescission of the Notice of
Deficiency. Please address your correspondence to Ms. Marcia Allocco at the letterhead address.
Thank you for your attention to this matter. If you have questions concerning this matter or to apply
for a SOC, please do not hesitate to contact Ms. Allocco at [phone].
Sincerely, F
Marcia Allocco
Surface Water Protection
Acting Regional Supervisor
. _ c;c:1 Point Source, Branch
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115 .
Phone: [phone] Fax: [phone] Customer Service: 1-877-623-6748
Internet: http://portal.ncdenr.org/web/wq
An Equal Opportunity', Affirmative Action Employer— 30% Recycled/10% Post Consumer paper
Nne
orthCarolina
Aatl ullf

i
.tea
N.CDENR
North Carolina Department of E-nvironment and
Division of Water Quality
Beverly Eaves Perdue Ccleen H. Sullins
Governor Director
March 15, 2011
Mr. Rodney A. Morgan, EH&S Supervisor
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
Dear Mr. Morgan:
F I L Ex,
Natural Resources
Subject: Compliance Evaluation Inspection
Corning, Inc. WWTP
NPDES Permit No. NCO086169
Cabarrus County, N.C.
Enclosed please find a copy of the Compliance Evaluation Inspection Report for the
inspection conducted at the subject facility on March 14, 2011, by Mr. Wes Bell of this Office.
Please inform the facility's Operators -in -Responsible Charge of our findings by forwarding a
copy of the enclosed report.
Cee Freeman
. Secretary
The report should be self-explanatory; however, should you have any questions concerning,
the report, please do not hesitate to contact Mr. Bell at [phone].
Sincerely,
A-rRobert B. Krebs
Surface Water Protection Regional Supervisor
Enclosure:
Inspection Report
cc: Cabarrus Health Alliance
IME
Mooresville Regional Office
Location: 610 East Center Ave., Suite 301 Mooresville, NC 28115
Phone: [phone] Fax: [phone] Customer Service: 1-877-623-6748
Internet: hitp://portal.ncdenr.orgiweb,wq
An Equal Opportunity 1 Affirmative Action Employer - 50% Recycicdil0% Post Consumer paper
One.
NorthCarolina
Nah,1°91l'if

United States Environmental Protection Agency
Form Approved.
/�
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance Inspection Report
Approval expires 8-31- 8
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 I?,1 2 I3I 31 NC0086169 I11 121 11/03/10 I17 18ICI 19ISI 20I II
I
Remarks
21111111111111111111111111111111111IIIIIIIIIIIII
Inspection Work Days Facility Self -Monitoring Evaluation Rating 131 QA ------ ------------------ Reserved ----------------
67 I 1.5 169 70 1 4 I 711 N I 72 I ,I I 73 I I 174 711 I I I I I I 180
I__L J
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
09:25 AM 11/03/10
08/12/01
Fiber Optic Facility
Exit Time/Date
Permit Expiration Date
14556 US Hwy 601 S
Midland NC 28107
01:10 PM 11/03/10
13/10/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Rodney A Morgan/EHS Supervisor/704-569-7209 /7045697182
Sheila B Smith/ORC/704-569-6028/
Name, Address of Responsible Official/Title/Phone and Fax Number
Scot M Lachowicz,14556 Hwy 601 S Midland NC 28107/Operations Contacted
Manager/704-569-6300/ No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit ® Flow Measurement ® Operations & Maintenance ® Records/Reports
Self -Monitoring Program ® Sludge Handling Disposal ® Facility Site Review Effluent/Receiving Waters
Laboratory ® Storm Water
Section D: Summary of Finding/Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Inspector s) Agency/Office/Phone and Fax Numbers Date
% 7 j A J
Wesley NBell le/ / MRO WQ//704-663-1699 Ext.2192/ /
Signature of Management Q A Reviewer Agency/Office/Phone and Fax Numbers Date
Marti A1locco = MRO WQ//704-663-1699 Ext.2204/
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
Page # 1

NPDES yr/mo/day Inspection Type
3I NCO086169 I11 12I 11/03/10 I17 18ICI
\I
(Ccr_t. ) 1
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary)
STORMWATER POLLUTION PREVENTION PLAN (SPPP)SECTION:
The records pertaining to the SPPP were well maintained. The SPPP was last updated in 2011 and
employee training was performed on 5/13/2010. Facility stormwater inspections were performed in
accordance with the permit. An SPCC Plan has also been incorporated into the Spill Prevention and
Response Plan.
The facility staff must ensure the following is documented in the SPPP: specific dates of the annual
review/updates, a listing of significant spills during the last 3 years (even if none occurred for the year), a
signed certification from the responsible official or duly authorized representative that all stormwater outfalls
have been evaluated for the presence of non-stormwater discharges, and a feasibility study as referenced in
Part I, Section 8, (1)(b)Stormwater Management Plan.
QUALITATIVE MONITORING:
The facility has two designated stormwater outfalls (001 and 002). Qualitative/visual monitoring was last
performed on 11/15/2010. Facility staff must ensure that the qualitative/visual monitoring of each
stormwater outfall is performed during.a rainfall event.
Page # 2

Permit: NCO086169
Inspection Date: 03/10/2011
Owner - Facility: Fiber Optic Facility
Inspection Type: Compliance Evaluation
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
Is the facility as described in the permit?
# Are there any special conditions for the permit?
Is access to the plant site restricted to the general public?
Is the inspector granted access to all areas for inspection?
Comment: The subject permit expires on 10/31/2013.
Record Keeping
Are records kept and maintained as required by the permit?
Is all required information readily available, complete and current?
Are all records maintained for 3 years (lab. reg. required 5 years)?
Are analytical results consistent with data reported on DMRs?
Is the chain -of -custody complete?
Dates, times and location of sampling
Name of individual performing the sampling
Results of analysis and calibration
Dates of analysis
Name of person performing analyses
Transported COCs
Are DMRs complete: do they include all permit parameters?
Has the facility submitted its annual compliance report to users and DWQ?
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
Is the ORC visitation log available and current?
Is the ORC certified at grade equal to or higher than the facility classification?
Is the backup operator certified at one grade less or greater than the facility classification?
Is a copy of the current NPDES permit available on site?
Facility has copy of previous year's Annual Report on file for review?
Yes No NA NE
nnn
nnn
®nnn
nnn
®nnn
®nnn
® n ❑ ❑
®.nnn
n n n
®nnn
®nnn
nn®n
0 0 a 0
® n n n
®nnn
®nnn
® n n n
nn®n
Page # 3

Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 03/10/2011 Inspection Type: Compliance Evaluation
io
W__ K1_ %IA AIC
Record Keeping
Comment: The records reviewed during the inspection were organized and well
maintained. Discharge Monitoring Reports (DMRs) were reviewed for the period
January 2010 'through December 2010. No limit violations were reported and all
monitoring frequencies were correct. The facility staff must ensure of the following:
values are reported on the DMR's maximum/minimum column, flow values (Outfall 003
DMR) are properly reported and calculated, and each ORC visitation day is documented
when the work schedule is from 1800 hrs. to 0700 hrs.
Laboratory Yes No NA NE
Are field parameters performed by certified personnel or laboratory? ® fl n n
Are all other parameters(excluding field parameters) performed by a certified lab? ® n f-1 n
# Is the facility using a contract lab? ® n n n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)? n n n
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees? n n n
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees? ❑ n
10
Comment: The on -site field analyses (pH, total residual chlorine, temperature) are
performed under Corning's laboratory certification #5029. The laboratory
instrumentation used for the field analyses appeared to be properly calibrated (and
documented). WSACC's Rocky River Regional WWTP Laboratory (Certification #177)
and R & A Labs (Certification #34) have also been contracted to perform effluent
analyses.
Effluent Sampling
Yes No NA NE
Is composite sampling flow proportional?
® n ❑ ❑
Is sample collected below all treatment units?
® n 'n n
Is proper volume collected?
® n n n
Is the tubing clean?
® n n n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
® n n n
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
®n n n
Comment: The subject permit requires both composite and grab effluent sampling.
Outfall 002 effluent is measured prior to the confluence with stormwater as required In
the permit.
Operations & Maintenance
Yes No NA NE
Is the plant generally clean with acceptable housekeeping?
®n n n
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge n n ® n
Judge, and other that are applicable?
Comment: The facility appeared to be properly operated and well maintained.
Page 4 4

0
Permit: NC0086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 03/10/2011 Inspection Type: Compliance Evaluation
Equalization Basins
Yes
No
NA
NE
Is the basin aerated?
n
n
im
n
Is the basin free of bypass lines or structures to the natural environment?
n
n
n
Is the basin free of excessive grease?
n
n
n
Are all pumps present?
n
n
n
Are all pumps operable?
m
❑
n
Are float controls operable?
®
❑
n
❑
Are audible and visual alarms operable?
n
n
n
# Is basin size/volume adequate?
®
n
n
n
Comment:
Secondary Clarifier
Yes
No
NA
NE
Is the clarifier free of black and odorous wastewater?
o
n
n
Is the site free of excessive buildup of solids in center well of circular clarifier?
0
❑
®
❑
Are weirs level?
®❑
n
n
Is the site free of weir blockage?
®
n
n
n
Is the site free of evidence of short-circuiting?
®
o
n
n
Is scum removal adequate?
®
n
n
n
Is the site free of excessive floating sludge?
®
n
n
n
Is the drive unit operational?
n
n
®
n
Is the return rate acceptable (low turbulence)?
n
n
®
❑
Is the overflow clear of excessive solids/pin floc?
®
n
n
n
Is the sludge blanket level acceptable? (Approximately '/< of the sidewall depth)
n
n
®
❑
Comment: The facility is equipped with a Lamella clarifier. No sludge has been
generated in several years due to the type of the influent wastestreams being treated.
Chemical Feed
Yes
No
NA
NE
Is containment adequate?
o
n
n
Is storage adequate?
®
n
o
n
Are backup pumps available?
®
n
n
n
Is the site free of excessive leaking?
o
n
o
Comment:
Yes
No
NA
NE
Page # 5

i;l
Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 03/1012011 Inspection Type: Compliance Evaluation
De -chlorination
Yes No NA NE
Liquid
Type of system ?
Is the feed ratio proportional to chlorine amount (1 to 1)?
n n In n
Is storage appropriate for cylinders?
n n n
# Is de -chlorination substance stored away from chlorine containers?
❑ n ® ❑
❑ n ® ❑
Are the tablets the proper size and type?
Comment: The facility uses liquid sodium bisulfite for dechlorination.
Are tablet de -chlorinators operational?
❑ ❑ n
Number of tubes in use?
Comment:
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
n n n
Is flow meter calibrated annually?
®n ❑
❑ ❑ ❑
Is the flow meter operational?
(If units are separated) Does the chart recorder match the flow meter?
❑ n
Comment: The magnetic flow meter (Outfall 003) is calibrated/verified twice per year
and was last calibrated/verified on 3/9/2011 by Corning's Instrumentation & Control
personnel. Outfall 003 flows are measured prior to the confluence with the internal
cufall (non -contact cooling water and boiler blowdown). The effluent flow calculations
for Outfall 002 are based on flow rate and duration of discharge.
Pump Station - Effluent
Yes
No
NA
NE
Is the pump wet well free of bypass lines or structures?
®n
n
n
Are all pumps present?
®
n
❑
n
®
n
n
n
Are all pumps operable?
®
n
❑
171
Are float controls operable?
Is SCADA telemetry available and operational?
❑
n
Is audible and visual alarm available and operational?
n
n
n
Comment: The operation's staff continue to use in -line monitoring systems (pH,
conductivity, ORP, turbidity, etc.) at the treatment facility and effuent pump station
(Outfall 003). The facility also has the capability of diverting flows from the effluent
pump station to an "off -spec" tank if needed.
Effluent Pipe
Yes
No
NA
NE
Is right of way to the outfall properly maintained?
❑
n
❑
Page # 6

Permit: NCOO86169
Inspection Date: 03/10/2011
Effluent Pipe
Owner - Facility: Fiber Optic Facility
Inspection Type: Compliance Evaluation
Are the receiving water free of fcam other than trace amounts and other debris?
If effluent (diffuser pipes are required) are they operating properly?
Comment: The facility was not discharging at the time of the inspection; however, the
treated wastewater (Outfall 003) in the effluent pump station appeared clear with no
foam. The discharges from Outfalls 001 and 002 appeared clear with no oil sheens or
foam.
Yes No NA NE
❑ ❑ Q IN
nnMn
Page # 7

ANF,
NC® NR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. SullinsC°' ; r D'ee Freem'n
Governor Director's "Secretary:>'
June 25, 2009
CERTIFIED MAIL 7007 0710 0000 5376 5354
RETURN RECEIPT REQUESTED
Mr. Scot M. Lachowitz
Corning, Inc.
14556 US Highway 601 South
Midland, NC 28107
SUBJECT: Final Notice - Delinquent Annual Fee
Corning, Inc. —Fiber Optic Facility
NPDES Permit NCO086169
Cabarrus County
Dear Mr. Lachowitz:
J U id 2 :;) 2009
All NPDES permittees must pay an Annual Compliance Monitoring Fee. The fee requirement is documented in
your current permit at Part II, Section B. 14. Division of Water Quality records indicate your annual fee for the
period November 1, 2008 — October 31, 2009 has not been paid. The amount owed is $860.00; a copy of the
invoice previously sent by the Division's Budget Office is attached.
Failure to pay the annual fee is grounds for revocation of your permit, as documented in part II. B.13 and
II. B. 14. This matter must be promptly resolved.
This letter serves as final notice that the Division will refer the fee noted above to the North Carolina Attorney
General's Office for collection through the courts unless payment in the amount of $860.00 is received by July 31,
2009. Make checks payable to NC DENR and please include the permit number for which you are submitting
payment on the check.
If you have evidence that the fee has already been paid, please contact me by phone at [phone] or via e-
mail at [e-mail].
Sincerely, -�
,fW— t , f-11"
Robert L. Sledge
Western NPDES Unit
cc: Central Files
NPDES File
ec: Mooresville Regional Office — SWP Section
DWQ Budget Office - Fran McPherson -
1617 Mail Service Center, Raleigh, North Carolina 27699-1617 One
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604 NorthCarolina
Phone: [phone] FAX: [phone] \ Customer Service: 1-877-623-6748
Internet: www.ncwaterquality.org / �/�tu��"�
An Equal Opportunity1 Affirmative Action Employer N

NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
2 0 0 8 P R 0 INVOICE 1 2 1 9 9
Annual Permit Fee Overdue
This annual fee is required by the North Carolina Administrative Code. It covers the administrative costs associated with your
permit. It is required of any person holding a permit for any time during the annual fee period, regardless of the facility's operating
status. Failure to pay the fee by the due date will subject the permit to revocation. Operating without a valid permit is a violation
and is subject to a $10,000 per day fine. If the permit is revoked and you later decide a permit is needed, you must reapply, with the
understanding the permit request may be denied due to changes in environmental, regulatory, or modeling conditions.
Permit Number: NCO086169
Cabarrus County
Fiber Optic Facility
Michael D. Hannan
Corning Inc
PO Box 1700
Concord, NC 28026
Annual Fee Period: 2008-11-01 to 2009-10-31
Invoice Date: 12/16/08
Due Date: 01/15/09
Annual Fee: $860.00
Notes:
1. A $25.00 processing fee will be charged for returned checks in accordance with the North Carolina General Statute 25-3-512.
2. Non -Payment of this fee by the payment due date will initiate the permit revocation process.
3. Remit payment to:
NCDENR - Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
4. Should you have any questions regarding this invoice, please contact the Annual Administering and Compliance Fee Coordinator at
919-807-6321.
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
(Return This Portion With Check)
ANNUAL PERMIT INVOICE
Permit Number: NC0086169
Cabarrus County
Fiber Optic Facility
Michael D. Hannan
Corning Inc
PO Box1700
Concord, NC 28026
1111111111111111111111111111
Overdue
Annual Fee Period: 2008-11-01 to 2009-10-31
Invoice Date: 12/16/08
Due Date:. 01/15/09
Annual Fee: $860.00
Check Number:

)RNING
Corning Incorporated t704-569-6300
14556 Hwy 601 South www.corning.com
Midland, NC 28107
June 4, 2009
Ms. Colleen Sullins, Director
Division of Water Quality J U N 1 0 2C'09
North Carolina Department of Environment and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699-1617 (S/}{
�f`s3 . �y�'y
url?„{+.,,� �ti%vsEii �w,ii+,o.✓iliVll
Re: Coming Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Responsible Official
Dear Ms. Sullins,
Currently, the designated Responsible Official for the Coming Concord facility is:
Scot M. Lachowicz
Operations Manager
The following individuals have Signature authority for other information requested by the Division
of Air Quality regarding Air Permit No. 8436:
Carla Lawrence
Production Superintendant
Rodney A. Morgan
EH&S Supervisor
William P. Myhalyk
Facilities Manager
Please remove Mr. Myhalyk as a signature designee as he has retired. In place of Mr. Myhalyk
please add:
Timothy D. Haley
Facilities Manager

Corning Incorporated
Please contact Rodney Morgan at [phone] if there are any questions.
Sincerely,
Scot M. Lachowicz
Plant Manager
cc: Ms. Susan Wilson
Division of Water Quality
610 East Center Avenue, Suite 301
Mooresville, NC 28115

�NING
June 4, 2009
Corning Incorporated
14556 Hwy 601 South
Midland, NC 28107
Ms. Colleen Sullins, Director
Division of Water Quality
North Carolina Department of Environment and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Responsible Official
Dear Ms. Sullins,
t704-569-6300
www.corning.com
w t I
Currently, the designated Responsible Official for the Corning Concord facility is:
Scot M. Lachowicz
Operations Manager
J U N 1 8 2009
The following individuals have Signature authority for other information requested by the Division
of Air Quality regarding Air Permit No. 8436:
Carla Lawrence
Production Superintendant
Rodney A. Morgan
EH&S Supervisor
William P. Myhalyk
Facilities Manager
Please remove Mr. Myhalyk as a signature designee as he has retired. In place of Mr. Myhalyk
please add:
Timothy D. Haley
Facilities Manager

Corning Incorporated
Please contact Rodney Morgan at [phone] if there are any questions.
Sincerely,
Scot M. Lachowicz
Plant Manager
cc: Ms. Susan Wilson
Division of Water Quality
610 East Center Avenue, Suite 301
Mooresville, NC 28115

0�0 W AT �
� r
December 1, 2008
Mr. Rodney A. Morgan, EH&S Supervisor
Corning, Inc.
14556 Hwy. 601 South
Midland, North Carolina 28107
`�� r
IV1
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins. Director
Division of Water Quality
Subject: Compliance Evaluation Inspection
Corning, Inc. WWTP
NPDES Permit No. NCO086169
Cabarrus County, N.C.
Dear Mr. Morgan:
Enclosed please find a copy of the Compliance Evaluation Inspection Report for the
inspection conducted at the subject facility on November 21, 2008, by Mr. Wes Bell of this
Office. Please inform the facility's Operators -in -Responsible Charge of our findings by
forwarding a copy of the enclosed report.
The report should be self-explanatory; however, should you have any questions concerning
the report, please do not hesitate to contact Mrs. Marcia Allocco or Mr. Bell at [phone].
Sincerely,
i a / I Ua=X1J
" t:Y Robert B. Krebs
Surface Water Protection Regional Supervisor
Enclosure
cc: Cabarrus Health Alliance
C
NonrthCarolina
NCDENR (lhatura!!y
Mooresville Regional Office Division of Water Quality Phone [phone] Customer Service
Internet: www.ncwatergriality.or; 610 East Center Ave, Suite 301 Mooresville, NC 28115 Fax [phone]
An Gniul nnnnrfiinifv/Affirmnfiva Arfinn Fmnlnver_ Fmo/ Par—loHiino/ Pncf (.nncnmar Pnnar

United States Environmental Protection Agency
Form Approved.
EPA Washington, D.C. 20460
OMB No. 2040-0057
Water Compliance inspection Report
Approval expires 8-31-98
Section A: National Data System Coding (i.e., PCS)
Transaction Code NPDES yr/mo/day Inspection Type Inspector Fac Type
1 I� 2 151 31 N00086169 ill 121 08/11/21 117 181CI 191SI 201 1
Remarks
21IIIIIIIIIIII IIII IIII IIII IIII IIIIIIIIIIIIIIIIIII6
Inspection Work Days Facility Self -Monitoring Evaluation Rating 131 QA ---------------------- ---- Reserved ----------------------
67I 1.5 169 701 41 711 N I 721 NJ 73 IWI 174 751 I I I I I Li
Section B: Facility Data
Name and Location of Facility Inspected (For Industrial Users discharging to POTW, also include
Entry Time/Date
Permit Effective Date
POTW name and NPDES permit Number)
12:22 PM 08/11/21
05/05/01
Fiber Optic Facility
Exit Time/Date
Permit Expiration Date
14556 US Hwy 601 S
Midland NC 28107
03:51 PM 08/11/21
08/10/31
Name(s) of Onsite Representative(s)/Titles(s)/Phone and Fax Number(s)
Other Facility Data
Rodney A Morgan/& EH S Suprvisor/704-569-6000 /
William Peter Myhalyk/ORC/704-569-7164/
Name, Address of Responsible Official/Title/Phone and Fax Number
Contacted
Scot M Lachowicz,310 N College Rd Wilmington NC 28405//910-784-7200/
No
Section C: Areas Evaluated During Inspection (Check only those areas evaluated)
Permit Flow Measurement Operations & Maintenance Records/Reports
Self -Monitoring Program Sludge Handling Disposal Facility Site Review Effluent/Receiving Waters
Laboratory Storm Water
Section D: Summary of Find in /Comments Attach additional sheets of narrative and checklists as necessary)
(See attachment summary)
Name(s) and Signature(s) of Insspector(s/)/) Agency/Office/Phone and Fax Numbers Date
Wesley N Bell MRO WQ//704-663-1699 Ext.2192/
Si atu�re of Management Q A Revi er 1 , Agency/Office/Phone and Fax Numbers ate
Ma cia 1 occo"'�' MRO WQ//704-663-1699 Ext.2204/ 666
EPA Form 3560-3 (Rev 9-94) Previous editions are obsolete.
11
Page # 1

NPDES yr/mo/day Inspection Type (cont.)
3I NCO086169 I11, 12I 08/11/21 I17 18'C
Section D: Summary of Finding/Comments (Attach additional sheets of narrative and checklists as necessary) "
RECORD KEEPING SECTION cont'd:
SELF -MONITORING PROGRAM:
The facility staff must ensure of the following:
- the ORC/Backup ORC visitations (including operator time on -site) are properly transcribed onto the DMR
(August 08 and September 08):
- the collection of the composite samples does not exceed the 24 hr. sampling period.
STORMWATER:
The facility is required to develop and implement a Stormwater Pollution Prevention Plan (SPPP). The
SPPP was organized and well maintained. The facility staff have incorporated the Spill Prevention Control
and Countermeasure Plan as part of the SPPP's Spill Prevention and Response Plan. All qualitative
monitoring, facility inspections, and employee training are performed in accordance with the requirement's
of the subject permit. The facility staff must ensure to include a copy of the annual reviews and updates
with the SPPP and document future visual monitoring events on the Division's qualitative monitoring report
form.
Page # 2

Permit: NCO086169 Owner - Facility: Fiber Optic Facility
Inspection Date: 11/21/2008 Inspection Type: Compliance Evaluation
Permit
Yes
No
NA
NE
(If the present permit expires in 6 months or less). Has the permittee submitted a new application?
n
n
■
n
Is the facility as described in the permit?
■
n
n
n
# Are there any special conditions for the permit?
❑
❑
■
n
Is access to the plant site restricted to the general public?
■
n
n
n
Is the inspector granted access to all areas for inspection?
■
n
n
n
Comment: The subject permit expires October 31, 2013. The facility has not
manufactured optical fiber for approximately six years; however, the HVAC system
(cooling towers) has been maintained throughout this period to maintain the buildings
and equipment.
Record Keeping
Yes
No
NA
NE
Are records kept and maintained as required by the permit?
■
n
n
n
Is all required information readily available, complete and current?
■
n
n
n
Are all records maintained for 3 years (lab. reg. required 5 years)?
■
n
n
n
Are analytical results consistent with data reported on DMRs?
■
❑
n
Is the chain -of -custody complete?
■
n
❑
❑
Dates, times and location of sampling
■
Name of individual performing the sampling
■
Results of analysis and calibration
■
Dates of analysis
■
Name of person performing analyses
■
Transported COCs
■
Are DMRs complete: do they include all permit parameters?
■
n
n
n
Has the facility submitted its annual compliance report to users and DWQ?
n
n
■
n
(If the facility is = or > 5 MGD permitted flow) Do they operate 24/7 with a certified operator on each shift?
n
n
■
n
Is the ORC visitation log available and current?
■
n
n
Is the ORC certified at grade equal to or higher than the facility classification?
■
n
n
n
Is the backup operator certified at one grade less or greater than the facility classification?
■
n
n
n
Is a copy of the current NPDES permit available on site?
■
n
n
n
Facility has copy of previous year's Annual Report on file for review?
n
n
■
n
Page # 3

Permit: NCO086169
Inspection Date: 11/21/2008
Owner - Facility: Fiber Optic Facility
Inspection Type: Compliance Evaluation
Record Keeping Yes No NA NE
Comment: The facility's NPDES records were organized and well maintained. DMRs
were reviewed for the period October 07 through September 08. No limit violations
were reported. No effluent temperature, pH, and total residual chlorine (TRC) were
reported during the week of 8/23/08 8/29/08; however, the facility complied with all
monitoring requirements throughout the remaining review period. The effluent
monitoring location at Outfall 002 is consistent with the permit's requirements. See
"Summary' Section for additional comments.
Laboratory
Yes
No
NA
NE
Are field parameters performed by certified personnel or laboratory?
■
n
n
n
Are all other parameters(excluding field parameters) performed by a certified lab?
■
n
n
n
# Is the facility using a contract lab?
■
0
n
n
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
■
n
n
n
Incubator (Fecal Coliform) set to 44.5 degrees Celsius+/- 0.2 degrees?
n
n
■
o
Incubator (BOD) set to 20.0 degrees Celsius +/- 1.0 degrees?
n
n
■
n
Comment: On -site field analyses are performed under laboratory certification #5029.
R & A Laboratories (Certification #34) and the WSACC Laboratory (Certification #177)
have also been contracted to provide analytical support. The laboratory instrumentation
used for field analyses appeared to be properly calibrated. The facility staff must ensure
to document the following: the collection/analysis times (pH and TRC), meter
calibration/verification times (pH and TRC), and the laboratory analyst for all field
analyses. In addition, the facility staff must ensure that the effluent TRC values for
Outfall 002 are not reported (on future DMRs) below the lowest chlorine standard
verified on the TRC meter.
Effluent Sampling
Yes
No
NA
NE
Is composite sampling flow proportional?
■
n
n
n
Is sample collected below all treatment units?
■
❑
n
n
Is proper volume collected?
n
■
n
n
Is the tubing clean?
n
n
n
■
# Is proper temperature set for sample storage (kept at less than or equal to 6.0 degrees Celsius)?
■
n
n
n
Is the facility sampling performed as required by the permit (frequency, sampling type representative)?
■
n
n
n
Comment: The facility was not sampling at the time of the inspection; however, the
sampler had been programmed to collect 50 ml. aliquots. The facility staff indicated that
the sampler would be programmed to collect 100 ml. aliquots (at a minimum) for all
future sampling events.
Operations & Maintenance Yes No NA NE
Is the plant generally clean with acceptable housekeeping? ■ n n n
Page # 4

Permit: NCO086169
Inspection Date: 11/21/2008
Operations & Maintenance
Owner - Facility: Fiber Optic Facility
Inspection Type: Compliance Evaluation
Vey K1— KIA uC
Does the facility analyze process control parameters, for ex: MLSS, MCRT, Settleable Solids, pH, DO, Sludge ■ Cl n n
Judge, and other that are applicable?
Comment: The treatment facility (outfall 003) was not operating during the inspection
due to low influent flows. The treatment system appeared to be well maintained and is
equipped with an in -line monitoring system (pH, ORP, etc.) to ensure adequate
treatment of the process wastewater. The non -contact cooling water (Outfall 002) flows
through two wet detention ponds (operated in series) prior to the discharge outfall. The
stormwater flows through a single wet detention pond prior to the Outfall 001 discharge.
i�Mnmir�l Ceor!
Is containment adequate?
Is storage adequate?
Are backup pumps available?
Ve K1- NA AIC
■nnn
■nnn
■ n n n
Is the site free of excessive leaking?
■ n n n
Comment:
Flow Measurement - Effluent
Yes No NA NE
# Is flow meter used for reporting?
■
Is flow meter calibrated annually?
■ n n n
Is the flow meter operational?
■ n ❑ n
(If units are separated) Does the chart recorder match the flow meter?
n ❑ ■ n
Comment: Outfall 003 flows are measured continuously by a magnetic flow meter that
is located upstream of the internal outfall for the non -contact cooling water and boiler
blowdown discharges (as required by the Permit). The flow meter is calibrated annually
and was last calibrated on 9/19/08 by the facility staff. Outfall 002 flows are calculated
by multiplying the known flow rate by the duration of the discharge event.
Pump Station - Effluent
Yes
No
NA
NE
Is the pump wet well free of bypass lines or structures?
■
n
n
n
Are all pumps present?
■
n
Are all pumps operable?
■
n
❑
n
Are float controls operable?
■
n
n
Is SCADA telemetry available and operational?
n
n
■
o
Is audible and visual alarm available and operational?
❑
❑
■
Comment: The effluent pump station has been equipped with an in -line monitoring
system (pH, conductivity, ORP, and turbidity). In addition, the facility staff have the
capability to divert flows from the effluent pump station to an adjacent storage tank.
Effluent Pipe
Yes
No
NA
NE
Page # 5

Permit: NCO086169
Inspection Date: 11/21/2008
Owner - Facility: Fiber Optic Facility
Inspection Type: Compliance Evaluation
Effluent Pipe Yes No NA NE
Is right of way to the outfall properly maintained? ❑ Q Q ■
Are the receiving water free of foam other than trace amounts and other debris? n n • n ■
If effluent (diffuser pipes are required) are they operating properly? ❑ ❑ ■
Comment: The facility was not discharging from Outfall 003; however, the effluents
from Outfalls 001 and 002 appeared clear with no foam.
Page # 6

CORNING Corning Incorporated t704-569-6300
14556 Hwy 601 South www.corning.com
Midland, NC 28107
October 11, 2007
MW
Ms. Colleen Sullins, Director L V
Division of Water Quality R D
North Carolina Department of Environment and Natural Resources
1617 Mail Service Center OCT 3 0 2007
Raleigh, NC 27699-1617
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Responsible Official
Dear Ms. Sullins,
NC DENR MR.O'
Q` "C� �`�
�!CirCaIeCHGfl
Currently, the designated Responsible Official for the Corning Concord facility is:
Scot M. Lachowicz
Operations Manager
The following individuals will have Signature authority for other information requested by the
Division of Air Quality regarding Air Permit No. 8436:
Carla Lawrence
Operations Leader
William P. Myhalyk
Facilities Manager
Rodney A. Morgan
EH&S Supervisor
Please contact Rodney Morgan at [phone] if there are any questions.
Sincerely,
Scot M. Lachowicz
Operations Manager
cc: Ms. Susan W�l'san
Di is' n o `Water Quality
610 East Center Avenue, Suite 301
Mooresville, NC 28115

CORNING
May 2, 2007
Corning Incorporated t910-j' 7200
310 North College Road,*,,r i.'Q%-,ww'co ni om ""
Wilmington, NC 2.
I
Mr. Alan W. Klimek, P.E., Director
Division of Water Quality
North Carolina Department of Environment and Natural Resources
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Update to Responsible Official
Dear Mr. Klimek,
spy 1 0 2007
t, ;.
Effective June 1, 2007, the designated Responsible Official for the Corning Concord facility will
change to:
Scot M. Lachowicz
Operations Manager
Signature authority for other information requested by the Division of Water Quality regarding the
above permit will reside with the following:
William P. Myhalyk
Facilities Manager
Please contact Bill Myhalyk at [phone] if there are any questions.
Sincerely,
Joseph Monastra
Division Vice President
cc: DWQ Regional Supervisor
610 East Center Avenue, Suite 301
Mooresville, NC 28115

5029
Mr. William P. Myhalyk
Corning, Inc.
P.O. Box 1700
Concord, NC 28026-1700
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
AND
Z jAAja W..I{ limek; .E,trector
Division of ! ter Quad
'V IJl
December 15, 2006 I
{
-DEC 1 9 200,
SUBJECT: Wastewater/Groundwater Laboratory Certification Renewal
Field Parameters Only
Dear Mr. Myhalyk:
The Department of Environment and Natural Resources, in accordance with the
provisions of NC GS 143-215-.3 (a) (10), 15 NCAC 2H .0800, is pleased to renew
certification for your laboratory to perform specified environmental analyses required by
EMC monitoring and reporting regulations 15 NCAC 2B .0500, 2H .0900 and 2L .0100,
.0200, .0300, and 2N .0100 through .0800.
Enclosed for your use is a certificate describing the: requirements and limits of your
certification. Please review this certificate to insure that your laboratory is certified for all
parameters required to properly meet your certification needs.
Please contact us at 919-733-3908 if you have questions or need additional
information.
Sincerely,
Pat Donnelly
Branch Manager
Enclosure
cc: Chet Whiting
Mooresville Regional Office
Non. tKarolina
Natara!!y
Laboratory Section 1623 Mail Service Center Raleigh, NC 27699-1623 Phone [phone] Customer Service
Internet: www.dwglah.orQ Location: 4405 Reedy Creek Road Raleigh, NC 27607 Fax [phone]
An Equal Opportunity/Affirmative Action Employer — 50% Recycled/i 0% Post Consumer Paper

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Attachment
North Carolina Wastewater/Groundwater Laboratory Certification
Inc.
1700
Concord, NC 28026-1700
Certified Parameters Listing
FIELD PARAMETERS ONLY
Certificate Number: 5029
Effective Date: 01/01/2007
Expiration Date: 12/31/2007
Date of Last Amendment:
he above named laboratory, having duly met the requirements of 15A NCAC 21-1.0800, is hereby certified for the measurement of the parameters listed below.
CERTIFIED PARAMETERS 71
NORGANICS
tESIDUAL CHLORINE
Std Method 4500 Cl G
H
Std Method 4500 H B
'EMPERATURE
Std Method 2550E
his certification requires maintance of an acceptable quality assurance program, use of approved methodology, and satisfactory performance on evaluation samples. Laboratories are
jbject to civil penalties and/or decertification for infractions as set forth in 15A NCAC 21-1.0807.

IPV
To
Optical Fiber P.O. Box 1700 t 704 569 6000 www.corning.com
Corning Incorporated Concord, NC 28o26-1700
Corning Incorporated, Concord Facility
_ . NPDES Permit No. NCO086169
Duly Authorized Representative
CERTIFIED MAIL:,
RETURN RECEIPT REOUESTED
Mike Parker
NCDENR
Division of Water Quality
919 North Main Street
Mooresville, NC 28115
CORNING
a Discovering Beyond Imagination
December 1, 2004
NC DEPT. OF ENVIROWIENT
AND NATURAL RE -SOURCES
klOORESVILLE REGIONAL OFFICE.
Cc: Mr. Dave Goodrich
North Carolina Department of Environment and Natural Resources
Divisionpf Water Quality, NPDES Permit Unit
1.617 Mail :Service Center
Raleigh, North Carolina 27699-1617
Dear Mike Parker:
Effective December 1, 2004 Doug B. Gillison, will assume the duties and
responsibilities of the Site Manager, for Corning Inc. at the Concord Facility. Mr. Gillison
will also assume the responsibilities for signing the NCDENR DWQ reports and
documents. Please see the attached memorandum authorizing Mr. Gillison the signing
authority to represent Corning as the Permittee located in Concord NC.
If you have any questions please feel free to contact me at 704-569-7164 or Doug
Gillison at 704-569-6902. Please forward a copy of this memo to the Corning Concord
DWQ file for future reference.
Thank you,
William P. Myhalyk
Plant ORC & Facilities Supervisor
Concord Plant
Corning, Inc.
Enclosures

IPV
NPDES D
I hereby give Doug B. Gil]
forms as the Permittee for
Michael D. Hann
RANDUM FOR RECORD
R SIGNATURE AUTHORITY
Site Manager, authorization to sign NPDES DMR
n2 Inc. at the Concord Plant.
W-5
Date

Optical Fiber P.O. Box 1700 t 704 569 6000 www.corning.com
Corning Incorporated Concord, NC 28026-1700
March 25, 2004
NC Dept. of Environment & Natural Resources
Div. of Water Quality
Budget Office
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
CC.
Mr. Rex Gleason
Supervisor Water Quality Permits & Engineering Unit
Mooresville Regional Office
County Health Department
CORNING
Discovering Beyond Imagination To Whom this May Concern:.
Enclosed is a postal money order. for ($715.00) for payment of the Annual
Permit Renewal Fee for the Corning Inc. Plant; in Concord NC. We
apologize for the late payment, this is the first:request we have received
for the renewal fee. We have experienced a number of intermittent
delivery problems with our mail following the .mothballing of this facility
in Dec. 2002; I assume this particular problem is also a result of our on-
going delivery problems.
Thank you for the second notice and we appreciate you understanding and
support. If you have any questions or need any additional information
please contact me at [phone].
Sincerely,
William P. Myhalyk
Facilities Supervisor •���t41
Concord Plant Off A NAeTI�I" t. R CSQ
RESVILa c .
Enclosures j
t�i�i.l!il:

,q,qq

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Alan W. Klimek, P.E. Director
Division of Water Quality
3/18/2004
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Christy Hannan
Corning Inc
PO Box 1700
Concord NC 28026
SUBJECT: NOTICE OF VIOLATION AND REVOCATION FOR NON PAYMENT
PERMIT NUMBER NC0086169
Fiber Optic Facility
Cabarrus COUNTY
Dear Permittee:
Payment of the required annual administering and compliance monitoring fee of $715.00 for this year has not
been received for the subject permit. This fee is required by Title 15 North Carolina Administrative Code 2H.0105, under
the authority of North Carolina General Statutes 143-215.3(a)(1), (I a) and (1 b). Because this fee was not fully paid within
30 days after being billed, this letter initiates action to revoke the subject permit, pursuant to 15 ncac 2H.0105(b) (2) (k)
(4), and G.S. 143-215.1 (b) (3).
Effective 60 days from receipt of this notice, subject permit is hereby revoked unless the required Annual
Administering and Compliance Monitoring Fee is received within that time. Discharges without a permit are subject to the
enforcement authority of the Division of Water Quality. Your payment should be sent to:
N.C. Department of Environment and Natural Resources
Division of Water Quality
Budget Office
1617 Mail Service Center
Raleigh, NC 27699-1617
If you are dissatisfied with this decision, you have the right to request an administrative hearing within Thirty (30)
days following recipt of this notice, identifying the specific issues to be contended. This request must be 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 request for hearing is made or
payments received, revocation shall be final and binding. If you have any questions, please contact:
Mr. Rex Gleason, Mooresville Water Quality Regional Supervisor, [phone].
Sincerely,
r
&;k_(N)
gk
cc: Supevisor, Water Quality Permits and Engineering Unit
Mooresville Regional Office
County Health Department
1617 Mail Service Center, Raleigh, NC 27699-161.7 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50% recycled / 10% post -consumer paper

www.corning.com
Corning Incorporated PO Box 1700 t 704 569 6000
Optical Fiber Concord, NC 28026-1700
NC Dept. of Environment, Health & Natural Resources
Division of Water Quality/NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Cc:
NPDES Unit
Mooresville Regional Office
Water Quality Section (draft permit, fact sheet)
Aquatic Toxicology (draft permit)
919 N Main Street
Mooresville NC 28115
Subject: NPDES Permit Renewal Draft
CORNING Permit NCO086169
Discovering Beyond Imagination
Dear Mr. McIntire:
March 3, 2004
RC DEPT. OF ENVIRONMEU
AND NATURAL RESOURCES
MOORESVIL � !? �!%]AL OFFICE
MAR 0 5 2004
This memo is to confirm that we have received the Draft renewal NPDES
Permit.NC00.86,169 for the Corning Inc. Midland NC facility. After review, we
do, not have any issues or comments regarding the conditions defined in the draft
or the actual permit requirements.
In addition I would like to thank you for your help and support during this
mothball period, and for taking the time to answer my questions regarding
changes to the draft permit. Thanks for confirming that there are no differences
in the operating parameters as defined in the new draft. In addition, a Corning
Inc. representative will notify you and all other appropriate agencies before
resuming any discharges through our permitted outfalls if/when plant operations
resume. Thank you for your continued support and commitment to this facility
and our mothball operations.
Respectfully submitted,
William P: Myhalyk
Concord Facilities, Supervisor
Corning Inc:,!,i:
T 704=569-71,64

CORNING
Discovering Beyond Imagination
Corning Incorporated
Optical Fiber
January 6, 2003
PO Box 1700
Concord, NC 28026-1700
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
t 704 569 6ocio � "oor�ning.corn
AND NATURAL R SOURCely
4 AND
REGIojyAL pF 6
AV ®8 2003
Mr. Dave Goodrich t0kT `r�
North Carolina Department of Environment and Natural Resources r�
Division of Water Quality, NPDES Permit Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Corning Incorporated, Concord Facility
NPDES Permit No. NCGO10000
Minor Modification Request
Dear Mr. Goodrich:
As discussed previously in our modification request, Corning Inc. has
decided`to "mothball" the Concord'Plant. "Mothball'.' means that there will
be no optical fiber manufactured on site and the site will be "chemical
free". There w.ill'be:no-process chemicals required for optical fiber
manufacturing -and alPsystems,.(equiprrient and piping) 'will:.be _purged. As
a condition of.theimothballing, Corning Inc. has decided to maintain the
facility in a state such that it can produce fiber within 6 months if the
business conditions change (within the next 4 years).
With this directive, it will be necessary to maintain HVAC capability to
condition the building to minimized deterioration of equipment and
systems. Therefore, the current HVAC system (cooling towers) will need
to operate during "mothball" status. The Concord Plant is currently
permitted to discharge non -contact cooling tower blowdown to Outfall 003
with our pollution abatement process water. During shutdown, the
pollution abatement system will not be needed. Therefore, there will be no
need to operate the current wastewater treatment system and no discharge
through Outfall 003. However, we intend to continue to keep the currently
required records and submit the appropriate reports to maintain our permit
as is.
Our permit modification, dated December 13, 2002, allows non -contact
cooling tower.blowdoww9enerated during the,"mothball";status tote, '
discharged.through Outfall 002 untreated.:
Based on this modification and that our current wastewater treatment
system will be shutdown (locked out and.tagged out) until such time as we

"4qq
-19A

restart the fiber making process, we are -requesting that our current facility
classification, "Grade -II Chemical/Physical;_be.modified to a Class "0" or
unrated. An unrated facility does not require an Operator in Responsible
Charge. We --are asking that -the Permitting Section and the Regional
Office provide_ written agreement withthisrequest such that we can
formally make the request of the Technical Assistance and
Certification Unit.
Please feel free to contact me if you have any questions concerning the
information presented. I can be reached at (704) 5, 9-6268.
Sincerely,
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures
Cc: Division of Water Quality, MooreesvillRegional Office, NCDENR
Technical Assistance and Certification Unit, DWQ, NCDENR
Blake Manuel, Corning Inc., Corporate Environmental Control

W a r�9Q-
r
5029
Mr. William P. Myhalyk
Corning, Inc.
P.O. Box 1700
Concord, NC 28026-1700
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
November 17, 2003
SUBJECT: Wastewater/Groundwater Laboratory Certification Renewal
FIELD PARAMETERS ONLY
Dear Mr. Myhalyk:
Alan W. Klimek, P. E. Director
Division of Water Quality
Coleen H. Sullins, Deputy Director
Division of Water Quality
The Department of Environment and Natural Resources, in accordance with the provisions
of NC GS 143-215-.3 (a) (10), 15 NCAC 2H .0800, is pleased to renew certification for your
laboratory to perform specified environmental analyses required by EMC monitoring and
reporting regulations 15 NCAC 2B .0500, 2H .0900 and 2L .0100, .0200, .0300, and 2N
.0100 through .0800.
Enclosed for your use is a certificate describing the requirements and limits of your
certification. Please review this certificate to insure that your laboratory is certified for all
parameters required to properly meet your certification needs.
Please contact us at 919-733-3908 if you have questions or need additional information
Sincerely,
James W. Meyer
Laboratory Section
Enclosure
cc: Chester E. Whiting
Mooresville Regional Office
AA
MENR
N. C. Division of Water Quality Laboratory Section 1623 Mail Service Center Raleigh, North Carolina 27699-1623 [phone] '
FAX: [phone]

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Lab Name:
Address:
Attachment I
North Carolina Wastewater/Groundwater Laboratory Certification
Certified Parameters Listing
Corning, Inc.
P.O. Box 1700
Concord, NC 28026-1700
Certificate Number:
Effective Date:
Expiration Date:
Date of Last Amendment:
5029
01 /01 /2004
12/31 /2004
The above named laboratory, having duly met the requirements of 15A NCAC 21-1.0800, is hereby certified for the measurement of the parameters listed below.
CERTIFIED PARAMETERS
INORGANICS
RESIDUAL CHLORINE
Std Method 4500 Cl G
pH
Std Method 4500 H B
TEMPERATURE
Std Method 2550E
FIELD PARA�'�4c�� ONLY
This certification requires maintance of an acceptable quality assurance program, use of approved methodology, and satisfactory performance on evaluation samples. Laboratbnes are ; w
subject to civil penalties and/or decertification for infractions as set forth in 15A NCAC 21-1.0807. -

Ms. Christy Hannan
Corning Inc.
PO Box 1700
Greensboro, NC 27401
Dear Ms. Hannan:
Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H. Sullins, Chairman
Water Pollution Control System Operators Certification Commission
February 13, 2003
Physical Chemical Classification Rescinded
System: Corning Incorporated, Concord Facility
Classification: Grade 2 Physical Chemical System — (Rescinded)
Subject: Designation of ORC and Backup ORC for Physical / Chemical
Permit: NCO086169
The Physical Chemical Grade 2 classification of the Corning Incorporated, Concord Facility
identified by NPDES Permit number NCO086169 is rescinded effective February 13, 2003. This
rescission does not remove the possibility of future classification.
cc:
Central Files
TAC Facility Files
Sincerely,
Pugh, Education & Training Specialist
ecialist
Technical Assistance and Certification Unit
M/'D���EPT. OF EWVIRt �tftrWT
1r�it,S�iJAT RAL PUSCURCES
(L.o o'MBVILLE R50h4'NAI. ZIFF10E
ltt�t',
FEB 2 4 2003
k ,
f.
�It;DEP1t
Technical Assistance & Certification Unit
1618 Mail Service Center, Raleigh, NC 27699-1618
DENR Customer Service Center
An Equal Opportunity Action Employer
Internet http://h2o.enr.nc.state.us/tac
Telephone [phone] Fax [phone]
Telephone [phone]
50% recycled/10% post -consumer paper

CORNING
Discovering Beyond Imagination
Corning Incorporated
Optical Fiber
February 18, 2003
www.corning.com
MC DOT. OF EbI1AE(OWEAT
= NATURAL RESOURP94
MXMSMLLE REGIONAL OFFIt%
, ,- nl
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Dave Goodrich
North Carolina Department of Environment and Natural
Division of Water Quality, NPDES Permit Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
PO Box 1700 t 704 569 6000
Concord, NC 28026-1700
RE: Corning Incorporated, Concord Facility
NPDES Permit No. NCO086169
Duly Authorized Representative
Dear Mr. Goodrich:
Michael D. Hannan, Site Manager, will be the NCDENR, DWQ, point of
contact for the Corning Inc., Concord Facility, effective March 1, 2003.
Attached, please find the written authorization provided by W. M. Kenan,
Corning, Inc., Concord Plant Manager for Michael D. Hannan to sign the
DEM form MR-1 (Discharge Monitoring Report) as the permittee. I want
to insure this information is part of our DWQ file.
Please feel free to contact Mr: Hannan if :vou have any questions
concerning the information contained in the document. He can be reached
at [phone].
Sincerely,
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures

MEMORANDUM FOR RECORD
NPDES DMR SIGNATURE AUTHORITY
I hereby give Michael D. Hannan, Site Manager, authorization to sign NPDES DMR
forms as the Permittee for the Corning, Inc. Concord Plant.
L g 2-
W. M. Kenan, Plant Manager Date

CORNING
Discovering Beyond Imagination
Corning Incorporated
Optical Fiber
January 28, 2003
PO Box 1700
Concord, NC 28026-1700
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
c "iV/ I :: �,;' •;':�16 cs:Vw.� �}�
(SIC
t 704 569 600ELdU; w\�,gLiwww.t:oryDjag:compUo,,�_
RR
JAN U 6 9 20 ,E
:t1
Hope Walters
North Carolina Department of Environment and Natural Resources
Division of Water Quality, Technical Assistance and Certification Unit
1618 Mail Service Center
Raleigh, North Carolina 27699-1618
RE: Corning Incorporated, Concord Facility
NPDES Permit No. NCG010000
Wastewater Treatment Facility Classification
Dear Ms. Walters:
Corning Inc. has decided to "mothball" the Concord Plant. "Mothball"
means that there will be no optical fiber manufactured on site and the site
will.be "chemical free". There will be.no process chemicals required -for
optical fiber manufacturing and all systems (equipment and piping) will be
purged. As a condition of the mothballing, Corning Inc. has decided to
maintain the_facility in a state such 'that it can- produce fiber within 6
months if the business conditions change (within the next 4 years).
With this directive, it will be necessary to maintain HVAC capability to
condition the building to minimized deterioration of equipment and
systems. Therefore, the current HVAC system (cooling towers) will need
to operate during "mothball" status. The Concord Plant was permitted to
discharge non -contact cooling tower blowdown to Outfall 003 with our
pollution abatement process water. During shutdown, the pollution
abatement system will not be needed. Therefore, the current
physical/chemical wastewater treatment facility will not be operated
Our permit modification, dated December 13, 2002, allows non -contact
cooling tower blowdown generated during the "mothball" status to be
discharged through Outfall 002 untreated.
Based on, this modification and that our physical/chemical wastewater
treatment facility will be shutdown (locked out and tagged out) -until
such time as. we restart the fiber making. process, we are requesting
that our current facility classification, Grade II hemical/Physical, be
modified to a Class "0" or unrated. An unrated facility does not require
an Operator in Responsible Charge. However, we will have an ORC on

--- - -------------------
staff with no backup ORC. Mark McIntire, DWQ, Permitting Section, and
James Pugh, of your office, discussed this request on Monday, January 27,
2003 and are supportive of the change in classification.
Corning Incorporated will notify your office 60 days prior to start up of the
physical/chemical wastewater treatment facility should business improve
and the Concord Plant begins to make product.
Please feel free to contact me if you have any questions concerning the
information presented. I can be reached at [phone].
Sincerely,
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures
Cc:,Di,visioniiofv&Water-k�tral.itMuor,esvHll-e$l egionala.ffice�,uNA
Permitting Section, DWQ, NCDENR
Blake Manuel, Corning Inc., Corporate Environmental Control

PV
CORNING
Discovering Beyond Imagination
Corning Incorporated
Optical Fiber
November 12, 2002
PO Box 1700
Concord, NC 28026-1700
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Dave Goodrich
t 704 569 6000 wwrW:corning.00m "ZOOF E3
OFFICE
NOY 14 2002
VATS }' ; q
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. NCG010000
Minor Modification Request
Dear Mr. Goodrich:
Corning Inc. has decided to "mothball' the Concord Plant. "Mothball'
means that there will,be;no.,optical, fiber manufactured on site and the site
will be ;"chemical free There will no process. chemicals• required for ;.
optical fiber manufacturing'and all. systems (equipment and piping) will be
purged.,, As'. a condition of .the mothballing;. Corning:Inc. has decided to
maintain.the.facil ty,in.a,state:such.that;it:�can,produce:fiber;within.6
months'if,the business.conditions change (within the next 4 years).,:
With this directive, it will be necessary to maintain HVAC capability to
condition the building to minimized deterioration of equipment and
systems. Therefore, the current HVAC system (cooling towers) will need
to operate during "mothball' status. The Concord Plant is currently
permitted to discharge non -contact cooling tower blowdown to Outfall 003
with our pollution abatement process water. During shutdown, the
pollution abatement system will not be needed. Therefore, there will be no
need to operate the current wastewater treatment system and no discharge
through Outfall 003. However, we intend to continue to keep the currently
required records and submit the appropriate reports to maintain our permit
as is, except for the following request.
We request that. the non -contact cooling tower, blowdown: generated during
the. "mothball". status be- discharged ,through Ouifall 0.02..-.Outfall. 002 is a
retention .pond,large, enough to accommodate the current stormwater:
runoff,- humidification boiler blowdown and.the addition of -the non-. ;
contact cooling _tower blowdown. Mark McIntire and Charles W..eaver; of
your office, met with us. on site, November 5,.2002; to. discuss this option.
They are familiar with our process and support the. actions we wish to take.

F'r
NON -CONTACT COOLING TOWER BLOWDOWN
"MOTHBALL" STATUS
CONCORD PLANT
CORNING INC.
- Concord I cooling towers will be used (Concord II cooling towers will be
"mothballed").
- The discharge will be intermittent
- Minimum daily flow — 3000 gallons
- Average daily flow — 4500 gallons
- Maximum daily flow — 6000 gallons
- BetzDearborn chemicals listed in most current permit application are still applicable.
There is no change expected to this list. Please refer to the permit modification
application submitted in December 2000, for details on the cooling tower additives.
- Our current permit allows the discharge of humidification boiler blowdown and
annual flushing of the cooling towers (during maintenance) to Outfall 002 in addition
to the stormwater runoff.

-Q
r
j
'C
October 14, 2002
Ms. Christy Hannan, Environmental Control Engineer
Coming, -Inc.
Post Office Box 1700
'Concord, North Carolina 28026-1700
Dear Ms. Hannan:
Wfichael F _ Easley, Governor
'WfQiarn G. Ross Jr„ Secetary,
North Carolina Depanment of Environment and Natural Resources
�i
Alan W. Klimek, PZ.. Director
Division of Water Quality
Subject: Compliance Evaluation Inspection
Corning, Inc./Midland Plant
NPDES .Permit No. NCO086169
Cabamzs County, N.C.
Enclosed is a copy of the Compliance Evaluation Inspection Report for the inspection
conducted at the subject facility on October 3, 2002, by Mr. Wes Bell of this Office. Please inform
the facility's Operator -in -Responsible Charge of our findings by forwarding a copy of the enclosed
report.
The report should be self-explanatory; however, should you have any questions concerning
this -report, please do not hesitate to contact Mr. Bell or me at [phone].
Sincerely,
"D. Rex Gleason, P.E.
Water Quality Regional .Supervisor
Enclosure
cc: Cabarrus County Health Department
W.
N. C. Division of Water Quality
919 North Main Street, Mooresville NC.28115 Phone [phone]
FAX [phone]
M
iV®ENR

US Environmental Protection Agency, Washington, D.C., 20460
A
Forrn Approved.
OMB No.2040-0057
Water Compliance Inspection Report tin
NC Division of Water Quality / Mooresville Regional Office NCDENR
Approval Expires 8-31-98
:�SectiinAi
Transaction Code NPDES No. Yr/Mo/Day Inspection Type Inspector Facility Type
N 5 NCO086169 02/10103 C S 2
Remarks:
Inspection Work Days Facility Evaluation Rating BI QA ..........Reserved..._......
1.5 4 N N
on, q
S Lfi 2-!Tacil!t 'Daft .y.,
Name and Location of Facility'Inspected:
Entry Time:
Permit Effective Date:
Coming, Inc.
11:34 am
00105101
U.S. Highway 601
Exit Time/Date:
Permit Expiration Date:
Midland
Cabarrus County, North Carolina
2:35 pm
03/10/31
02/10/03
'Name(s) of On -Site Representative(s)/Title(s)/Phone No(s)/Fax No(s):
Ms. Sheila Smith/ORC/704-569-7237
Ms. Christy Hannan/Environmental Control Engineer/704-569-6268
Name and Address of Responsible Official:
Title: Environmental Control Engineer
Ms. Christy Hannan
Coming, Inc.
Post Office Box 1700
Phone No:
Contacted?
Concord, North Carolina 28026-1700
704-569-6268
Yes
Section �C-:,Areiis-.,EvaluatedDjjring':Ins pection�_(Che6k-oiiI
t
'hoge:aieas:eviiivated)-.-.,-.�.':,
y'
• Permit X Flow Measurement X Operations & Maintenance X Sewer Overflow
• Records/Reports X Self -Monitoring Program X Sludge Handling/Disposal Pollution Prevention
• Facility Site Review Compliance Schedules Pretreatment Multimedia
• EffluentlReceiving Waters X Laboratory Storm Water Other:
A ectiori.M­. "�y In indi
Su inar -'dfY nigi/ Virimints-
See Attached Sheet(s) for Summary.
Name(s) and Signature(s) of Inspectors:
Agency/Office/Telephone No:
Date:
Wes Bell
NCDWQ/MOORESVILLE/[phone]
10/11/02
Date:
Signature of Management QA Reviewer:
Agency/Office/Phone & Fax No:
M1
Date:
EPA Form 3560-3 (Rev. 9-94) Previous editions are obsolete

PpFp
Corning, Inc. /Midland Plant
Page Two
The facility was last inspected by Linda Love of this Office on May 9, 2000.
PERMIT:
, The permit authorizes the continued operation of an existing . 0.107 MGD wastewater
treatment facility (outfall 003) consisting of a equalization tank, off -spec tank, two lamella clarifiers,
two neautralization tanks, neutralization transfer tank, chloride stabilization tank, and surge blend.
tank. Due to the upgrades approved by the Division, the permit description does not adequately
describethe wastewater treatment facility.
The permit also authorizes the facility to discharge stormwater and boiler blowdown from
a wet detention pond from outfall 002 and discharge stormwater from a wet detention pond from
outfall 001.
The permit for this facilitybecame effective 5/l/00 and expires on 10/31/03. The Division
has issued several permit modifications; however, the expiration date has remained unchanged.
RECORDS AND REPORTS:
Records and reports consisting of discharge monitoring reports, chain of custody forms,
laboratory analyses, Operator -in -Responsible Charge (ORC)sign-in/daily operation log, process
control data, calibration log, sludge records, and the Storm Water Pollution Prevention Plan (and all
corresponding documentation) were reviewed during the inspection. The records were organized
and well kept. This office commends the level of documentation at this facility.
FACILITY SITE REVIEW/OPERATIONS & MAINTENANCE:
At the time of the inspection, the facility consisted of two equalization tanks (one in service),
two off -spec tanks (one in-service), three lamella clarifiers (one in-service), four neutralization tanks
(two in-service), two neutralization transfer tanks (one in-service), chloride stabilization tank (not
in-service), surge blend tank, effluent lift station, and an off -spec (PET) .tank at the effluent lift
station.
The scrubber's blowdown wastewater (pH -of < 1 s.u.) flows into the neutralization tank and
is pumped into the lamella clarifier. The clarifier's effluent flows into two neutralization tanks -in
series for pH adjustment. The pH of the first neutralization tank is raised to 4 s.u. and continued to
be raised to 6.5 s.u. in the second neutralization tank. Dechlorination also occurs in the second
neutralization tank by Sodium Bisulfite additions (if needed). The wastewater flows into a
neutralization transfer tank and pumped to the effluent lift station. In -line turbidimeters,
conductivity meters, ORP meters, and pH meters have been installed within the treatment system
to insure adequate treatment. The facility has the capability (following the pH neutralization and at
the.effluent lift station) to pump the treated wastewater into storage tanks if the in -line meters detect
parameter exceedences in the wastestream.
At the time of the inspection, all treatment units appeared to be operating properly and the
facility was well maintained. The process control program includes conductivity, TVSS, pH,
turbidity, and ORP measurements. All domestic wastewater is pumped to the WSACC Muddy
Creek WWTP.

Corning, Inc. /Midland Plant
Page Three
FACILITY SITE REVIEW/OPERATIONS & MAINTENANCE cont'd:
The facility is staffed with one Grade III ORC. A certified back-up operator has been
designated and is available when the ORC is unable to visit the facility. The ORC and staff were
very knowledgeable of the treatment processes and equipment used at the facility.
LABORATORY:
The Rocky River WWTP Laboratory (Certification #177) in Concord, N.C. and R & A
Laboratories, Inc. (Certification #34) in Kemersville, N.C. have been contracted to provide analytical
support. The laboratories were not evaluated during -the inspection. The facility has applied for and
received a laboratory certification (#5029) by the Division's Laboratory Certification Unit to perform
on -site field analyses. The pH and TRC meters and thermometer appeared to be properly calibrated.
EFFLUENT/RECEIVING WATERS:
The effluent discharge (outfal1003) was clear with no floatable solids or foam. Outfall 003
discharges into the Rocky River. Outfalls 001 and 002 were not discharging at the time of the
inspection. Outfall 001 discharges into an unnamed tributary to Muddy Creek and outfall 002
discharges into an unnamed tributary to Clear Creek. All receiving streams are Class C waters in
the Yadkin -Pee Dee River Basin. All outfalls were accessible at the time of the inspection. The
receiving stream for outfal1003 (Rocky River) did not appear to be negatively impacted at the time
of the inspection.
SELF -MONITORING PROGRAM:
Self -monitoring reports were reviewed for the period July 2001 through June 2002, inclusive.
No limit violations were reported. All monitoring frequencies were correct; however, on December
4, 12, and 13, 2001, effluent parameters were collected and analyzed with a "0.00" MGD flow
reported. Please be advised that the Permit requires effluent analyses only during discharge events.
Effluent composite samples are collected flow proportionately. All samples appeared to be
properly preserved and meet the required holding times.
FLOW MEASUREMENT:
Effluent flow is continuously measured by a magnetic flow meter with totalizer and recording
(via computer database). The flow meter is calibrated annually by Corning personnel. The flow
meter was last calibrated on 11/26/01.
SLUDGE DISPOSAL:
Sludge is removed by Hazmat of Charlotte, N.C. and disposed at disposal facilities in either
Michigan or New Jersey.

PF7orning, Inc./Midland Plant
Page Four
SEWER OVERFLOW:
Please be advised that pursuant to Part II, Section E of your NPDES permit, and North
Carolina Administrative Code (NCAC) 15A 2B .0506 (a)(2), any failure of a collection system,
pumping station or treatment facility resulting in a bypass without treatment of all or any portion of
the wastewater shall be reported to the central office or the appropriate regional office (Mooresville
Regional Office 704-663-1699) as soon as possible but no later than 24 hours from the time the
permittee became aware of the bypass. Overflows and spills occurring outside normal business hours
may also be reported to the Division's Emergency Response personnel at 800-662-7956, 800-858-
0368, or 919-733-3300. A written report shall also be provided within five (5) days of the time of
the incident. The report shall contain a description of the bypass, and its cause; the period of the
bypass, including exact dates and times, and if the bypass has not been corrected, the anticipated time
it is expected to continue; and steps taken (or planned) to reduce, eliminate, and prevent recurrence
of the similar events. Any spill that reaches surface waters (i.e. any spill that reaches any water
already present in a conveyance, stream, ditch, etc...) or any spill greater than 1,000 gallons on the
ground that does not reach surface waters must be reported.
An adequate spill response for those spills reaching surface waters should include an
evaluation downstream of the point at which the spill entered surface waters to determine if a fish
kill occurred. The evaluation should also include the collection of upstream dissolved oxygen and
pH measurements for background information and dissolved oxygen and pH measurements at
multiple points downstream of the entry point to document any negative impact. Failure to report
the bypass of collection system, pumping station or treatment facility subjects violators to penalties
of up to $25,000.00 per day per violation.

S�l7� Corning Incorporated
Optical Fiber
\n\l\ 1 July 11, 2002
Y I
PO Box 1700 t 704 569 6000
Concord, NC 28026-1700
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Dave Goodrich
www.corning.com
KIC DEPT. OF SJ1,TfRCTMOT
AND d5ATU °AL RESOURCES
MC RESvaLt 0 RF:GIONAe. OFFICE
JUL 17 2002
North Carolina Department of Environment and Natural Riy,' tic slAG ap 9 � �.yy ak(p {y
Division of Water Quality, NPDES Permit Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
RE: Corning Incorporated, Concord Facility
NPDES Permit No. NCG010000
Sampling Parameter Evaluation
Dear Mr. Goodrich:
CORNING
Discovering Beyond Imagination
As required by our NPDES permit, effective December 1, 2001, we have
analyzed samples from Outfall 003 for cadmium, copper and zinc. Our
permit states that after seven sampling events the permittee may request
(in writing) that the Division evaluate this parameter and modify the
Attached are the analysis results of the subject sampling events. We are
requesting that DWQ evaluate the .results and modify our current NPDES
permit if subject sampling is no longer necessary.
Please feel free to contact me if you have any questions concerning the
information presented. I can be reached at [phone].
Sincerely,
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures

EFFLUENT
CORNING INCORPORATED
Metals Summary for Outfall 003
December 2001 thru June 2002
NPDES PERMIT NC 0086169
Class II P/C Cabarrus County
Metals Review for 7 months 7/8/02 4:16 PM

Corning Incorporated
Optical Fiber
February 26, 2002
PO Box 1700 t 704 569 6000
Concord, NC 28026-1700
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
www corning com'
FEB 2 8 2002
VVAs�� Tq
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. NCG010000`KCbG SL,
Duly Authorized Representative
Dear Mr. Goodrich:
CORNING
Discovering Beyond Imagination
Attached, please find the written authorizations provided by W. M. Kenan,
Corning, Inc., Concord Plant Manager for me to sign the facility's
Stormwater Inspections for General Permit NCGO10000 and DEM form
MR-1 (Discharge Monitoring Report) as the permittee. Mr. Kenan will
assume the responsibilities of Concord Plant Manager on March 1, 2002. I
want to insure this information is part of our DWQ file.
Please`feel`free to,�contact, mhe'if'you have'any questions concerning the
information contained in the document. I can be reached at (704) 569-
6268.
Sincerely,
Chan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures

February 26, 2002
MEMORANDUM FOR RECORD
To Whom it May Concern:
Signatory authority is hereby delegated to Christy L. Hannan,
Environmental Control Engineer, Corning, Inc., Concord Plant (NPDES
Permit No. NCGO10000). This authority allows Ms. Hannan to sign as
Permittee on Stormwater Inspections for General Permit NCG010000-
Land Disturbing Activities.
Sincerely,
W. M. Kenan
Corning, Inc.
Concord Plant

February 26, 2002
MEMORANDUM FOR RECORD
To Whom it May Concern:
Signatory authority is hereby delegated to Christy L. Hannan, Environmental Control
Engineer, Corning, Inc., Concord Plant (NPDES Permit No. NC0086169). This authority
allows Ms. Hannan to sign as Permittee on DEM Form MR-1 (12/93).
Sincerely,
W. M. Kenan
Corning, Inc.
Concord Plant

Effective date of the permit
Subject: Effective date of the permit
Date: Wed, 07 Nov 2001 08:45:32 -0500
From: Mike Myers <[e-mail]>
To: "Hannan, Christy L" <[e-mail]>
CC: Michael Parker <[e-mail]>
Christy,
I just saw the effective date yesterday and figured you would be calling
about the effective date. Just to make sure you are covered, I figured
I would send you an email. You are right about the effective date, so
until the permit modification becomes effective Corning 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 BetzDearborn 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.
I hope this clears that up.
Michael J. Myers
Environmental Engineer
NPDES Unit - Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27669-1617
[phone] x508
rnailto:[e-mail]
Michael J. Myers <mike.myersCab_ncmail.net>
Environmental Engineer
NC DENR DWQ
NPDES Unit
1 of 1 11 /7/01 8:56 AM

ppppp'-
P!orth Carolina
epartment,of Environment and Natural Resources
Water Pollution Control System Operator Certification Commission
Michael F. Easley, Governor
William G. Ross Jr., Secretary ;;1 ;3 •J ="' t=}'� {4; `r�FiC
Coleen H. Sullins, Chairman
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Ms. Christy Hannan
Corning Inc.
PO Box 1700
Concord, NC 28026
BUG 3 U 2001
oY >"ice a' : •F':.J
e��
NCDENR
August 17, 2001
System: Corning Inc. Wastewater Treatment System
Classification: Grade 2 Physical Chemical System
Subject: Designation of ORC and Backup ORC for Physical / Chemical
Permit: NCO086169
wz' wv-'V� Qo .
Dear Ms. Hannan:
The Water Pollution Control System Operators Certification Commission adopted Rule 15A
NCAC 8G .0306, Classification of Physical / Chemical Systems, effective April 1, 1999. In
order to insure the proper operation and maintenance of these systems, this Rule requires that
all systems permitted for a physical / chemical process to treat wastewater be classified as
physical / chemical systems.
If the subject physical / chemical system consists of systems designed for (1) the remediation
of contaminated groundwater, or (2) that utilizes a primarily physical process to treat
wastewaters, (with the exception of reverse osmosis, electrodialysis, and utrafiltration
systems), then that system shall be classified as a Grade I Physical / Chemical Water Pollution
Control System. Rule 15A NCAC 8G .0306(a)
If the subject physical / chemical system consists of systems that utilizes a primarily chemical
process to treat wastewaters (including those systems whose treatment processes are
augmented physical processes), they shall be classified as a Grade H Physical / Chemical
Water Pollution Control System. Reverse osmosis, electrodialysis, and utrafiltration systems
shall also be classified as Grade H Physical / Chemical Water Pollution Control System. Rule
15A NCAC 8G .0306(b)
If the water pollution control system that has, as part of its treatment process, biological water
pollution control system that may be classified under Rule .0302, then that system shall be
subject to additional classification as a biological water pollution control system. Rule 15A
NCAC 8G .0306(c)
Any water pollution control system subject to classification under Rule .0302 of this Section,
utilizing a physical / chemical process to enhance an activated sludge or fixed growth process,
shall not be subject to additional classification. Rule 15A NCAC 8G .0306(d)
1618 Mail Service Center, Raleigh, North Carolina 27699.1618
Phone: 919 — 733-0026 \ FAX: 919 — 733-1338
AN EQUAL OPPORTUNITY \ AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED / 10% POST CONSUMER PAPER

PPPPPFP-
The Water Pollution Control System Operators Certification Commission hereby classifies
your system as a Grade 2 Physical Chemical System. This classification is based on
information submitted in your application for a NPDES permit and/or based on the
information you provided in the physical chemical classification survey that you completed
during the months of April -May 2001.
As required by Rule 15A NCAC 8G .0202(2) and the subject permit, a certified Operator in
Responsible Charge- (ORC) and back-up operator of the appropriate type must be
designated for each classified system. Your system requires an ORC and back-up
operator who hold valid physical / chemical operator certificates. Please complete and
return the enclosed designation form to this office by December 31, 2003. Failure to
designate a properly certified ORC and back-up operator is a violation of the permit issued
for this system.
In accordance with Rule 15A NCAC 8G .0406(b), individuals presently working at physical /
chemical water pollution control systems holding a valid Grade I, 11, IlI, or IV wastewater
treatment plant operator certification, may apply for a conditional operators physical /
chemical certificate without examination. He or she may do so if, he or she has one year
experience and has successfully completed a training school sponsored or co -sponsored by the
Commission for Grade I or. Grade 2 Physical / Chemical Water Pollution Control System
Operators. This conditional certification allows the bearer to act as the ORC or Backup
ORC of that System only. This conditional certification must be renewed annually per
section .0700 of the rules. The Rules for this certification as well as others is found on the
DWQ/Technical Assistance and Certification Unit web page (http://h20.enr.state.nc.us/tacu/).
Plans are now being made to conduct the first physical chemical school in January 15-18,
2002 at the McKimmon Center in Raleigh. This school is co -sponsored by AWWA/WEA
and the NC Water Pollution Control System Operators Certification Commission. As soon as
arrangements for the school are finalized you will receive more information.
If we can be of assistance or you have any questions concerning this requirement, please call
James Pugh at 919-733-0026, ext. 341 or e-mail: [e-mail].
Enclosures
cc: WSRO
Central Files
TAC Facility Files
Sincerely,
J
Tony Arnold, Supervisor
Technical Assistance and Certification Unit

NCrEp-,.0raa:fzm
Corning Incorporated
Concord Facility
Permit No. NCO086169
,0' 2
ENGINEER'S CERTIFICATION
FOR
CONSTRUCTION OF WASTEWATER TREATMEN'4FF ILI' E,S.ry �
cdA i 1;n �td,�L: I f is t ,l '
am a duly registered Professional Engineer
(please print)
in the State of North Carolina and have been authorized to observe (circle one EEDweekly,
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;
• 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; GO/l7�L�T�
• Construction of a 21,000 gallon surge/blend tank; G% 700Z-t�7:5"
• Construction of two (2) lamella clarifiers; and C-111P
• 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.
Registration No. 0,- 3' +�
Date 7 // DD/
The Division of. Watcr Qunl9ty hm'ebY
wjmmdedgea receipt and acccpM= Of
. this E4ineers Certification
CA
, .......OB
0FER
sslo
s
GINS
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

DIVISION OF WATER QUALITY
July 26, 2001
MEMORANDUM TO: D. Rex Gleason
FROM: Samar Bou-Ghazale S't96
SUBJECT: Tax Certification No. TCS-MV-023
NPDES No. NC0086169
Corning Incorporated, Concord Facility
Wastewater Treatment Facilities
Cabarrus County, North Carolina
This Office has conducted an on -site investigation
confirming the construction and operation of wastewater treatment
facilities at the Corning Incorporated facility in Cabarrus
County, North Carolina. The wastewater treatment facilities are
operating under a valid NPDES Permit (No.NC0086169). The
attached Tax Certification has been prepared for your signature.
If you have any questions or require additional information,
please advise.
Attachment
SBG

LU
AT�R Mi ael F. Easley
Governor
William G. Ross, Jr., Secretary
j North Carolina Department of Environment and Natural Resources
`< Kerr T. Stevens, Director
Division of Water Quality
DIVISION OF WATER QUALITY
July 26, 2001
Mr. Pat Sloan
American Appraisal Property Tax Services
9441 LBJ Freeway
Suite 114
Dallas, TX 75243
Subject: Tax Certification No. TCS-
MV-023
Wastewater Treatment
Abatement Facilities
Corning Incorporated
Permit No. NC0086169
Cabarrus County, NC
Dear Mr. Sloan:
Attached are two (2)_ copies of Tax Certification No.TCS-MV-
023 covering the operation of wastewater treatment facilities at
the subject facility.
In your letter dated April 9, 2001, tax certification was
requested for certain wastewater treatment/abatement facilities.
An inspection indicated that the following wastewater treatment
facilities are used exclusively for waste disposal or to abate,
reduce or prevent the pollution of waters in accordance with
North Carolina General Statute 105-275.(8)(a).
1. One(1)equalization tank
2. One(1)off-spec tank
3. One(1)lamella clarifier
N n MR

Mr. Pat Sloan
Page 2
July 26, 2001
4. Two(2)neutralization tanks
5. One(1)neutralization transfer tank.
The Company may use this Certification to obtain tax
benefits in keeping with the appropriate Statutes.
Sincerely,
r✓' C �c �
D. Rex Gleason, P. E.
Water Quality Regional Supervisor
Attachment
SBG

ATF
Michael F. Easley
PCGovernor
rWilliam G. Ross, Jr., Secretary
>--i North Carolina Department of Environment and Natural Resources
� Kerr T. Stevens, Director
Division of Water Quality
DEPARTMENT OF ENVIRONMENT, AND NATURAL RESOURCES
MOORESVILLE
TAX CERTIFICATION
(Franchise/privilege; Amortization; Property)
In accordance with the provisions of the General Statutes of
North Carolina (G. S. 105-122(d), 105-130.10, 105-147(13), 105-
275(8)), this is to certify that:
Corning Incorporated
Cabarrus County
HAS BEEN ISSUED
NPDES Permit No. NCO086169 by the North Carolina Division of
Water Quality for the operation of wastewater treatment/abatement
facilities consisting, in part, of the following:
1. One(1)equalization tank
2. One(1)off-spec tank
3. One(1)lamella clarifier
4. Two(2)neutralization tanks
5. One(1)neutralization transfer tank.
The Environmental Management Commission and the Department of
Environment and Natural Resources have found that the treatment
facilities:
a. Have been constructed or installed;
b. Comply with the requirements of the Commission;
M
r:nctnmar GPrvirP
r)hA.inn of XMr f— n,—Ii+ 0'10 r.I—+k RA.,;., Cf—+ RAnnr —;11e Kir ')ce,c 7ne C=o ,onn

C. Are being effectively operated in accordance with the
terms and conditions of the Permit, Certificate of
Approval, or other document of approval issued by the
Commission; and
d. Have as their primary rather than incidental purpose the
reduction of water pollution resulting from the
discharge of wastewater.
Issued at Mooresville, North Carolina this the 26' day of July,
2001 by the directive of the North Carolina Environmental
Management Commission and the North Carolina Department of
Environment and Natural Resources.
D. Rex Gleason; P.E.
Water Quality Regional Supervisor
Mooresville Regional Office
TCS-MV-023
1

OF W A TS9 Michael F. Easley
QG Governor
Cq William G. Ross, Jr., Secretary
] ` y North Carolina Department of Environment and Natural Resources
D � Y Kerr T. Stevens, Director
11;4� Division of Water Quality
DIVISION OF WATER QUALITY
July 26, 2001
Ms. Dawn McHale
Tax Administrator
P.O. Box 707
Concord, NC 28026
Subject: Tax Certification
TCS-MV-023
Wastewater Treatment -
Abatement Facilities
Corning Incorporated
Cabarrus County, NC
Dear Ms. McHale:
Transmitted herewith is Tax Certification No. TCS-MV-023
covering wastewater treatment/abatement facilities at the Corning
Incorporated facility located on Highway 601 South in Cabarrus
County, North Carolina. The facilities are described in plans on
file with the Division of Water Quality and Corning Incorporated
and are operated under NPDES Permit No. NC0086169.
By letter dated April 9, 2001(copy attached), Mr. Pat Sloan,
with American Appraisal Property Tax Services, requested tax
certification for the items listed in his letter (attached). An
inspection conducted by Division of Water Quality staff on July
5, 2001 indicated that the wastewater treatment facilities listed
on the attached tax certification are used exclusively for waste
disposal or to abate, reduce, or prevent the pollution of waters
in accordance with North Carolina General Statute 105-275.(8)(a).

Ms. Dawn McHale
Page 2
July 26, 2001
The Company may use this certification to obtain tax
benefits in keeping with the appropriate Statutes.
Sincerely,
T) t
D. Rex Gleason, P. E.
Water Quality Regional Supervisor
Attachment
SBG

F WATF
\O�0 RQG Michael F. Easley
Governor
UJ William G. Ross, Jr., Secretary
>_ North Carolina Department of Environment and Natural Resources
p T Kerr T. Stevens, Director
Division of Water Quality
DEPARTMENT OF ENVIRONMENT, AND NATURAL RESOURCES
MOORESVILLE
TAX CERTIFICATION
(Franchise/privilege; Amortization; Property)
In accordance with the provisions of the General Statutes of
North Carolina (G. S. 105-122(d), 105-130.10, 105-147(13), 105-
275(8)), this is to certify that:
Corning Incorporated
Cabarrus County
HAS BEEN ISSUED
NPDES Permit No. NCO086169 by the North Carolina Division of
Water Quality for the operation of wastewater treatment/abatement
facilities consisting, in part, of the following:
1. One(1)equalization tank
2. One(1)off-spec tank
3. One(1)lamella clarifier
4. Two(2)neutralization tanks
5. One(1)neutralization transfer tank.
The Environmental Management Commission and the Department of
Environment and Natural Resources have found that the treatment
facilities:
a. Have been constructed or installed;
b. Comply with the requirements of the Commission;

C. Are being effectively operated in accordance with the
terms and conditions of the Permit, Certificate of
Approval, or other document of approval issued by the
Commission; and
d. Have as their primary rather than incidental purpose the
reduction of water pollution resulting from the
discharge of wastewater.
Issued at Mooresville, North Carolina this the 26t' day of July,
2001 by the directive of the North Carolina Environmental
Management Commission and the North Carolina Department of
Environment and Natural Resources.
D, "
D. Rex Gleascgp P.E.
Water Quality Regional Supervisor
Mooresville Regional Office
TCS-MV-023

Arcadia
Atlanta
Boston
Buffalo
Charlotte
Chicago
Cincinnati
Dallas
Denver
Detroit
Houston
Irvine
April 9, 2001
AL
S�
American Appraisal Property Tax Services
9441 LBJ Freeway
Suite 114
Dallas, TX 75243
Phone [phone]
Fax [phone]
Rex Gleeson, Water Quality Regional Supervisor
Airborne Express ## 7923038340
Los .Anaeies
Milwaukee
Minneapolis
New Orleans
New York.
Philadelphia
Pittsburgh
Princeton
Rollino Meadow:
St. Louis
San Francisco
Tampa
North Carolina Department of Environment and Natural Resources r;
Water Quality Division
919 N. Main Street &
Mooresville, North Carolina
28115
RE: AMENDED Property Tax Certification Request for Corning, Inc.
Mr. Gleeson:
We are submitting this letter on behalf of Corning, Inc., formally requesting a property tax certification
for pollution control real and personal property at the Concord Fiber Optic Plant, at 14556 Highway 601
South, Midland, North Carolina. It is our understanding from our January conversation with you that
there is no formal application form. Our tax certification request is based on North Carolina tax law, Ch
105, Art 12, Sect 105-275, 8(a). This filing is an amendment of the filing originally submitted on
March 15, 2001.
Enclosed is a list of pollution control assets closed to company records as of December 31, 2000. Also
enclosed is a copy of water permit no.N00086169, effective May 1, 2000, for your reference.
This amendment is submitted due to a re -statement of the cost basis of the assets by Corning,
Incorporated. Additional project costs attributable to the attached assets had not been previously
capitalized, and the attached asset list represents a correction.
Also, the original certification request did not include assets capitalized after January 1, 2000. The
attached list includes those subsequent capitalizations.
We thank you for your prompt consideration of our request.
Sincerely,
Pat W. Sloan
Authorized Agent
cc: Michael Marconi, Corning, Inc.

venver
Detroit
Houston
Irvine
April 9, 2001
��s�iyv,bz3
American Appraisal Property Tax Services
9441 LBJ Freeway
Suite 114
Dallas, TX 75243
Phone [phone]
Fax [phone]
Rex Gleeson, Water Quality Regional Supervisor
Airborne Express # 7923038340
Los Angeles
Milwaukee
Minneapolis
New Orleans
New York
Philadelphia
Pittsburgh
Princeton
Rolling Meadows
St. Louis
San Francisco
Tampa
North Carolina Department of Environment and Natural Resources N.C. DEPT. OF
Water Quality Division EN-VTR4aNMENT;
919 N. Main Street
Mooresville, North Carolina
28115 APR 10 2009
RE: AMENDED Property Tax Certification Request for Corning, Inc. [31il&ZI, 0F �lnatt11tee� sii'e3i'
{1�19i�i�C54�{u 1{Lr��i''�:. Lei 1.11ii;
Mr. Gleeson:
We are submitting this letter on behalf of Corning, Inc., formally requesting a property tax certification
for pollution control real and personal property at the Concord Fiber Optic Plant, at 14556 Highway 601
South, Midland, North Carolina. It is our understanding from our January conversation with you that
there is no formal application form. Our tax certification request is based on North Carolina tax law, Ch
105, Art 12, Sect 105-275, 8(a). This filing is an amendment of the filing originally, submitted on
March 15, 2001.
Enclosed is a list of pollution control ;assets closed to company records as of December 31, 2000. Also
enclosed is a copy of water permit no.NC0086169, effective May 1, 2000, for your reference.
This amendment is submitted due to a re -statement of the cost basis of the assets by Corning,
Incorporated. Additional project costs attributable to the attached assets had not been previously
capitalized, and the attached asset list represents a correction.
Also, the original certification request did not include assets capitalized after January 1, 2000. The.
attached list includes those subsequent capitalizations.
We thank you for your prompt consideration of our request.
Pat W. Sloan
Authorized Agent
cc: Michael Marconi, Corning, Inc.

CORNING, INCORPORATED
CONCORD FIBER OPTIC PLANT, MIDLAND, NORTH CAROLINA
FIXED ASSETS AS OF 12-31-2000
Note: Corning had additional funds to close, and adjusted previous closings to account for the additional, final costs.
SCHEDULE OF PROPERTY UNITS
PROPERTY TAX
CLASSES:
PAE - POLLUTION
ABATEMENT EQUIPMENT
PAI - POLLUTION ABATEMENT IMPROVEMENTS
N.C.D.E.N.R.
Property Tax
Less 2000 Carryover
Adjusted
DIVISION
Class
Asset ID Asset Description
In Service
Age
Cost
Deductions
Cost
LIQUID
PAE
302 N6 PA STORG SYS PROCS ELEC
3-Apr-00
1
510,083
28,236
481,847
AIR
PAE
1319 N6 CHILD FOR ASSET #207
1-JUI-00
1
267,763
0
267,763
LIQUID
PAE
1320 N6 CHILD FOR ASSET #223
1-JUI-00
1
241,069
0
241,059
1 Total
1,018,905
28,236
990,669
AIR
PAE
90 N6 CONSOL SCRUBBER FNDAT,STEEL
1-JUI-99
2
534,477
34,319
500,158
AIR
PAE
91 N6 MISC SCRUBBER FNDAT,STEEL
1-Jul-99
2
569,231
33,265
535,966
LIQUID
PAE
92 N6 PA STORAGE SYS FNDATN,STEEL
1-JUI-99
2
404,943
22,416
382,527
AIR
PAE
93 N6 CORE EXHST SCRUB FNDAT,STEL
1-Jul-99
2
701,305
38,821
662,484
LIQUID
PAE
120 N6 FSB OIL SEPERATOR PIT
1-JUI-99
2
4,797
235
4,562
LIQUID
PAE
129 N6 PA STORAGE SYS EQUIP PIERS
1-Jul-99
2
2,881
168
2,713
AIR
PAE
130 N6 FM SICL4 ENCLOSURE
1-Jul-99
2
1,389,245
76,902
1,312,343
LIQUID
PAE
171 N6 MAIN BLDG PROC DISCHRG PIPE
1-JUI-99
2
8,407
513
7.894
AIR
PAE
175 N6 MAIN BLDG CHLORINE EXHST FA
1-Jul-99
2
1,612
95
1,517
AIR
PAE
178 N6 MAIN BLDG SOOT VAC/ASPIRATN
1-JUI-99
2
1,339,276
79,525
1,259,751
AIR
PAE
203 N6 SICL4 FUME EXHAUST SYS EQUIP
1-Jul-99
2
98,190
5,435
92,755
AIR
PAE
204 N6 SICL4 FOAM FIRE SUPPRESION
1-JUI-99
2
62,562
3,463
59,099
AIR
PAE
207 N6 FM OMCTS DUCTWORK EQUIP
1-JUI-99
2
2,548,072
75.559
2,472,513
AIR
PAE
210 N6 FM OMCTS SOOT HANDLG DUCT
1-JUI-99
2
703,062
38,918
664,144
AIR
PAE
212 N6 CONSOL SCRUBER PIPING EQUIP
1-JUI-99
2
348,638
19,299
329,339
AIR
PAE
213 N6 CONSOL SCRUBER DUCT EQUIP
1-JUI-99
2
1.743,544
96,514
1,647,030
AIR
PAE
214 N6 MISC SCRUBBR PIPING EQUIP
1-JUI-99
2
749,028
41,463
707,565
AIR
PAE
215 N6 MISC SCRUBBR DUCTWORK EQUIP
1-JUI-99
2
2,464,658
136.432
2,328,226
AIR
PAE
216 N6 MISC SCRUBBR INSULATION EQU
1-JUI-99
2
24,176
1,338
22,838
LIQUID
PAE
217 N6 PA STORAGE PROCESS EXHST FA
1-JUI-99
2
2,643
149
2,494
LIQUID
PAE
218 N6 PA STORAGE SYS PIPING EQUIP
1-JUI-99
2
602,885
33,373
569,512
LIQUID
PAE
219 N6 PA STORAGE SYS INSULATN EQU
1-JUI-99
2
112,291
6,216
106,075
AIR
PAE
220 N6 CORE EXHST SCRUB PIPING EQU
1-JUI-99
2
761,979
42,180
719,799
AIR
PAE
221 N6 CORE EXHST SCRBR DUCTWK EQU
1-JUI-99
2
362,645
20,074
342,571
AIR
PAE
222 N6 CORE EXHST SCRBR INSUL EQUI
1-JUI-99
2
318,754
17,645
301.109
LIQUID
PAE
223 N6 NEUTRALZTN SYS PIPING EQUIP
1-JUI-99
2
2,293,952
126,982
2,166,970
LIQUID
PAE
224 N6 NEUTRALZTN SYS INSUL EQUIP
1-JUI-99
2
332,279
18,393
313,886
AIR
PAE
277 N6 SOOT PROCESSING INSTR/CNTRL
1-Jul-99
2
27,513
1,523
25,990
AIR
PAE
278 N6 TDC EXHST PROCS INST/CNTRLS
1-Jul-99
2
30,674
1,698
28,976
AIR
PAE
279 N6 CONSOL SCRUBR PROCS INST/CN
1-JUI-99
2
808,958
44,780
764,178
AIR
PAE
280 N6 MISC SCRUBBR PROCS INST/CNT
1-JUI-99
2
1,018,912
56,402
962,510
LIQUID
PAE
281 N6 PA STRG SYS PROC INST/CNTRL
1-JUI-99
2
124,228
6,877
117,351
AIR
PAE
282 N6 CORE EXHST SCBBR PROC INST/
1-JUI-99
2
1,378,634
76,315
1,302,319
LIQUID
PAE
283 N6 NEUTRL SYS/DISPSL PROC INST
1-JUI-99
2
965,161
53,427
911,734
AIR
PAE
296 N6 SOOT PROCESS ELEC SYSTEM
1-JuI-99
2
31,531
1,745
29,786
AIR
PAE
297 N6 SOOT PROCESS HEAT TRACING
1-JUI-99
2
70,226
3,887
66,339
AIR
PAE
298 N6 CONSOL SCRBBR PROCS ELEC
1-JUI-99
2
525,835
29,108
496,727
AIR
PAE
299 N6 CONSOL SCRBBR PROCS HT TRAC
1-JUI-99
2
105,070
5,816
99,254
AIR
PAE
300 N6 MISC SCRBBR PROCS ELEC
1-JUI-99
2
339,531
18,795
320,736
AIR
PAE
301 N6 MISC SCRBBR PROCS HT TRACG
1-JUI-99
2
59,242
3,279
55,963
LIQUID
PAE
303 N6 PA STORG SYS PROCS HT TRACG
1-JUI-99
2
308,312
17,067
291,245
AIR
PAE
304 N6 CORE EXHST SCRBR PROCS ELEC
1-JUI-99
2
287,115
15,893
271,222
AIR
PAE
305 N5 CORE EXHST SCRBR PROCS HT T
1-Jul-99
2
38,932
2,155
36,777
LIQUID
PAE
306 N6 NEUTRLZATN PROCS ELEC
1-JUI-99
2
365,699
20,243
345,456
LIQUID
PAE
307 N6 NEUTRZATN PROCS HEAT TRACG
1-JUI-99
2
728,900
40,349
688,551
AIR
PAE
321 N6 SOOT MECH PROCESS EQUIP
1-JUI-99
2
411,380
22,000
389,380
AIR
PAE
322 N6 CONSOL SCRBBR PROCESS EQUIP
1-Jul-99
2
702,288
37,558
664,730
AIR
PAE
323 N6 MISC SCRBBR PROCESS EQUIP
1-Jul-99
2
956,043
51,129
904,914
LIQUID
PAE
324 N6 PA STORAGE SYS PROCS EQUIP
1-JUI-99
2
495,141
26,480
468,661
AIR
PAE
325 N6 CORE EXHST SCRBBR PROCS EQU
1-Jul-99
2
1,111,627
59,449
1,052,178
LIQUID
PAE
326 N6 NEUTRALZTN SYS PROCS EQUIP
1-Jul-99
2
660,623
35,330
625,293
AIR
PAE
329 N6 SOOT FILTRATION MEDIA
1-JUI-99
2
779,376
779,376
AIR
PAE
335 N6 SOOT BAGGING SYSTEM
1-JUI-99
2
499,196
499,196
AIR
PAE
528 N6 CARBON CYLINDER 60 MIN
1-Jul-99
2
7,200
0
7,200
2 Total
31,322,876
1,600,997
29,721,879
AIR
PAI
1352 N6 CHILD FOR ASSET #334
13-Dec-00
1
68,619
0
68,619
1 Total
68,619
0
68,619
LIQUID
PAI
42 N6 STORM WATER RETENTION POND
1-JUI-99
2
979,953
71,096
908,857
LIQUID
PAI
45 N6 HAZ WASTE STORAGE AREAS
1-JUI-99
2
134,163
9,734
124,429
AIR
PAI
83 N6 CARBON FILTER SKID BLDG
1-Jul-99
2
33,190
1,016
32,174
AIR
PAI
86 N6 FM (OMCTS) BLDG/STRUCTURE
1-Jul-99
2
1,250,347
37,077
1.213.270
AIR
PAI
87 N6 SOOT PROCESSING BLDG
1-JUI-99
2
11,862
11,862
LIQUID
PAI
94 N6 NEUTRLIZATN SYS/TOTE BLDG
1-JUI-99
2
69,040
3,822
65,218

CORNING, INCORPORATED
CONCORD FIBER OPTIC PLANT, MIDLAND, NORTH CAROLINA
FIXED ASSETS AS OF 12-31-2000
Note: Corning had additional funds to close, and adjusted previous closings to account for the additional, final costs.
SCHEDULE OF PROPERTY UNITS
PROPERTY TAX CLASSES:
PAE - POLLUTION ABATEMENT EQUIPMENT
PAI - POLLUTION ABATEMENT IMPROVEMENTS
N.C.D.E.N.R. Property Tax
Less 2000 Carryover
Adjusted
DIVISION Class
Asset ID Asset Description
In Service
Age
Cost
Deductions
Cost
LIQUID PAI
124 N6 PA LOAD CENTER VINYL FLOOR
1-Jul-99
2
1,254
75
1,179
LIQUID PAI
125 N6 CHEM TREATMT BRINE PLATFORM
1-Jul-99
2
2,782
165
2,617
LIQUID PAI
128 N6 HAZ WASTE STORAGE TRENCHS
1-Jul-99
2
4,700
279
4,421
AIR PAI
334 N6 SOOT BUILDING
1-Jul-99
2
1,706,442
657
1,705,785
2 Total
4,193,732
123,921
4,069,811
GRAND TOTAL, POLLUTION ABATEMENT PROPERTY
36,604,132
1,753,154
34,850,978

State of North Carolina
Department of Environment
and Natural Resources
Division of Water Quality
James B. Hunt, Jr., Governor
Bill Holman, Secretary
Kerr T. Stevens, Director
April 14, 2000
Ms. Christy L. Hannan
Corning Incorporated
Telecommunications Products Division
14556 Highway 601 South
Midland, North Carolina 28107
1 • •
NC EN-R
NORTH CAROLINA DEPARTMENT OF
ENVIRONMENT AND NATURAL RESOURCES
Subject: NPDES Permit Issuance
Permit Number NCO086169
Midland Fiber Facility
Cabarrus County
Dear Ms. Hannan:
In accordance with the application for discharge permit received on April 7, 1999. the Division is
forwarding herewith the subject state - NPDES permit. This permit is issued pursuant to the requirements of
North Carolina General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and
the U.S. Environmental Protection Agency dated December 6. 1985.
In accordance with your request, the modification (specifically the flow increase and change in toxicity
testing requirement for outfall 003) has been phased to better coincide with the proposed construction
schedule at the above referenced facility. Effluent limitations for the increased flow of 0.107 1%4GD become
effective on March 1, 2001.
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 (50) days
following receipt of this letter. This request must be 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. 6714 Mail
Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand is made, this permit shall be
final and binding.
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 regarding the attached draft permit, please do not hesitate to contact me- at
telephone number [phone], extension 553.
Sincerely, _
rr T. Stevens
Cc: Central Files
NPDES Permit File
Mooresville Regional Office, Water Quality
EPA, Roosevelt Childress
Point Source Compliance/Enforcement Unit
1617 MAIL SERVICE CENTER. RALEIGH. NORTH CAROUNA 27699-1617 - TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 50% RECYCLED/ 10% POST -CONSUMER PAPER
VISIT US ON THE WEB AT httt)://h2o.enr.state.nc.us/NPDES

Permit No. NCO086169
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,
Corning Incorporated
is hereby authorized to discharge wastewater and. stormwater from a facility located at
Corning Incorporated
Off Higgs hway 601
Midland
Cabarrus County
to receiving waters designated as an unnamed tributary of Muddy Creek (outfall 001). an unnamed
tributary of 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 conditions
set forth in Parts I, II, III, IV, V and VI hereof.
The permit shall become effective May 1, 2000.
This permit and the authorization to discharge shall expire at midnight on October 31, 2003.
Signed this day April 14, 2000.
rr T. Stevens, Direc or
Division of Water Quality.
By Authority of the Environmental Management Commission

Permit No. NCO086169
SUPPLEMENT TO PERMIT COVER SHEET
Corning Incorporated
is hereby authorized to:
1. Continue to operate a 0.0274 MCD wastewater treatment facility (outfall 003)
consisting of an equalization tank, an off -spec tank, a Lamella clarifier, two
.neutralization tanks.,and a neutralization transfer`tank located at a facility located off.
of Highway 601 in Midland, Cabarrus County;
2. After receiving Authorization to Construct from the Division of Water Quality,
construct and operate facilities for the discharge of up to 0.107 MCD through outfall
003; and
3. Discharge stormwater and boiler blowdown from a wet detention pond into an
unnamed tributary of Clear Creek (outfall 002), discharge stormwater from a wet
retention pond into an unnamed tributary of Muddy Creek (Outfall 001 — See Part
II, Section A for monitoring requirements), 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). All receiving streams are classified C waters in the Yadkin -Pee Dee
River basin.

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ROAD CLASSIFICATION
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HARD SURFACE IMPROVED SURFACE
SECONDARY HIGHWAY
HARD SURFACE UNIMPROVED ROAD
Latitude See Above Longitude See Above
Map#Gl6NEIG17NW Sub -basin 03-07-12
Stream Class — C
Discharge Class 100 % Industrial
Receiving Stream See Above
Design () 0.023 MGD permit expires 101311-9
SCALE 1:24 000
0 1 MILE
0 7000 FEET
0 1 KILOMETER
CONTOUR INTERVAL 10 FEET
QUAD LOCATION
Coming Incorporated
NCO096169
Cabarrus County
Fiber Optic Manufacturer

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Permit NCO086169
A(4). CHRONIC TOXICITY PERMIT LIAUT (gUARTERLY) @ 0.0274 bIGD
The effluent discharge shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 0.31%.
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 II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
January, April, July, and October. 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 II 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 II Chronic Whole Effluent Toxicity Test 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 TGP313 for the pass/fail results and THP313 for the Chronic, Value. Additionally, DWQ Form AT-3
(original) is to be sent to the following address:
Attention: NC DENR / DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be 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 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 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. `
j NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control
J 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.

Permit NCO086169
A(5). CHRONIC TOXICITY PERMIT LIMIT ((,QUARTERLY) @ 0.107 MGD
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,guarterlu monitoring using test procedures outlined in
the "North Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February ' 1998, or
subsequent versions or "North Carolina. Phase II Chronic Whole Effluent Toxicity Test Procedure"
(Revised -February 1998) or subsequent versions. The tests will be performed during the months of
January, April, July, and October. 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 II 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 II Chronic Whole Effluent Toxicity Test 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 TGP3B 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: NC DENR / DWQ / Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be 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 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 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.
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.

Permit NC0086169
A(6). Pollutant Analysis Condition
The Permittee shall conduct a test for pollutants once per permit cycle at the effluent from the
treatment plant. The discharge shall be evaluated as follows:
1) A pollutant analysis of the effluent must be completed using EPA approved methods for the
following analytic fractions:
(a) purgeables (i.e., volatile organic compounds);
(b) acid extractables;
(c) base/neutral extractables;
(d) organochlorine pesticides and PCBs;
(e) herbicides; and
(f) metals and other inorganics.
The Annual Pollutant Analysis Monitoring (APAM) Requirement Reporting Form A and accompanying
memo describes the sampling and analysis requirements and lists chemicals to be included in the
pollutant analysis. This monitoring requiremeiit is to. be referred to as the "Pollutant Analysis
Monitoring Requirement" (PAM).
2) Other significant levels of organic chemicals must be identified and approximately quantified. For
the purpose of implementing this requirement, the largest 10 GC/MS peaks in the purgeable,
base/neutral extractable, and acid exractable fractions (or fewer than 10 if less than 10
unidentified peaks occur) for chemicals other than
those specified on the APA Requirement Reporting Form A should be identified and approximately
quantified as stated in the APAM Reporting Form A instructions. This part (item 2) of the APAM
requirement is to be referred to as the "10 significant peaks rule").
A(7). Biological Monitoring Condition
The Permittee shall conduct an upstream and downstream benthic macroinvertebrate survey
beginning June 2004 and lasting through September 2004. A report of the findings of this survey
shall be completed and included with the permit application package at the time of permit renewal.
For technical assistance regarding this permit. requirement, please contact the Division's Biological
Assessment Unit at [phone].
A(8). Stormwater Monitoring, Controls and Limitations for Permitted
Discharges
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.
Stormwater Pollution Prevention Plans
The permittee shall develop and continue to update a Stormwater Pollution Prevention Plan, herein
after referred to as the Plan. The Plan shall be considered public information in accordance with Part
1 II. E. 10. of this permit. The Plan shall include, at a minimum, the following items:

Permit NCO086169
a. Site Plan: The site plan shall provide a description of the physical facility and the potential
pollutant sources which may be expected to contribute to contamination of regulated
stormwater discharges. The site plan shall contain the following:
(1) 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, and the
name of the receiving water(s) to which the stormwater outfall(s) discharges. 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 point(s) of discharge must be shown.
(2) A narrative description of storage practices, loading and unloading activities, outdoor process
areas, dust or particulate generating or control processes, and waste disposal practices.
(3) A site map (or series of maps) drawn to scale with the distance legend indicating location of
industrial activities (including storage of materials, disposal areas, process areas, and loading
and unloading areas), drainage structures, drainage areas for each outfall and activities
occurring in the drainage area, building locations and impervious surfaces, the percentage of
each drainage area that is impervious. For each outfall, a narrative description of the potential
pollutants which could be expected to be present in the regulated stormwater discharge.
(4) A list of significant spills or leaks of pollutants that have occurred at the facility during the 3
previous years and any corrective actions taken to mitigate spill impacts.
(5) Certification 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. B. 11.
b. Stormwater Management Plan: The stormwater management plan shall contain a narrative
description -of the materials management practices employed which control or minimize the
exposure of significant materials to stormwater, including structural and non-structural
measures. The stormwater management plan, at a minimum, shall incorporate the following:
(1) A study addressing 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
stormwater. Wherever practicable the permittee should consider covering storage areas, material
handling operations, manufacturing or fueling operations to prevent materials exposure to
stormwater. In areas where elimination of exposure is not practicable, the stormwater
management plan shall document the feasibility of diverting the stormwater runoff away from
areas of potential contamination.
(2) A schedule to provide secondary containment for bulk storage of liquid materials, storage of
Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA) water
priority chemicals, or storage of hazardous materials to prevent leaks and spills from
contaminating stormwater runoff. If the secondary containment devices are connected directly to
stormwater conveyance systems, the connection shall be controlled by manually activated valves
or other similar devices [which shall be secured with a locking mechanism] and any stormwater
that accumulates in the containment area shall be at a minimum visually observed prior to
release of the accumulated stormwater. Accumulated stormwater shall be released if found to be
uncontaminated. Records documenting the individual making the observation, the description of
the accumulated stormwater and the date and time of the release shall be kept for a period of five
years.
(3) A narrative description of Best Management Practices (BMPs) to be considered such as, but not
limited to, oil and grease separation, debris control, vegetative filter strips, infiltration and
stormwater detention or retention, where necessary. The need for structural BMPs shall be based
on the assessment of potential of sources contributing significant quantities of pollutants to
stormwater discharges and data collected through monitoring of stormwater discharges.
(4) Inspection schedules of stormwater conveyances and controls and measures to be taken to limit
or prevent erosion associated with the stormwater systems.

Permit NCO086169
c. Spill Prevention and Response Plan: The Spill Prevention and Response Plan shall incorporate a
risk assessment of potential pollutant sources based on a materials inventory of the facility.
Facility personnel (or team) responsible for implementing the plan shall be identified in 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.
d. Preventative Maintenance and Good Housekeeping Program: A preventative maintenance
.program shall be developed. The program shall document schedules of inspections and
maintenance activities of stormwater control systems, plant equipment and systems.
Inspection of material handling areas and regular cleaning schedules of these areas shall be
incorporated into the program.
e. Training schedules shall be developed and training provided at a minimum on an annual basis
on proper spill response and cleanup procedures and preventative maintenance activities for all
personnel involved in any of the facility's operations that have the potential to contaminate
stormwater runoff. Facility personnel (or team) responsible for implementing the training shall
be identified in the plan.
f. The Stormwater Pollution Prevention Plan shall identify a specific position(s) responsible for the
overall coordination, development, implementation, and revision.to the Plan. Responsibilities
for all components of the Plan shall be documented and position(s) assignments provided.
g. Plan Amendment: The permittee shall amend the Plan whenever there is a change in design,
construction, operation. or maintenance which has a significant effect on the potential for the
discharge of pollutants via a point source to surface waters. The Stormwater Pollution
Prevention Plan shall be reviewed and updated on an annual basis.
- , The Director may notify the permittee when the Plan 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 Plan to meet minimum requirements.
The permittee shall provide certification in writing (in accordance with Part II. B.11.) to the
Director that the changes have been made.
h. Facility Inspections: Inspections of the facility and all stormwater systems shall occur at a
minimum on a semiannual schedule, once in the fall (September - November) and once during
the spring (April - June). The inspection and any subsequent maintenance activities performed
shall be documented, recording date and time of inspection, individual(s) making the inspection
sysnarrative decription of the facility's stormwater control systems, plant equipment and
ems. Recordssof these inspections shall be incorporated into 'the Stormwater Pollution
sy
Prevention Plan.
Visual monitoring as required in Part Il. A. 2. shall be performed in addition to facility
inspections.
i. Implementation: Implementation of the Plan shall include documentation of all monitoring,
measurements, inspections, maintenance activities and training provided to employees,
including the log of the sampling data. Activities taken to implement BMPs associated with the
industrial activities (including vehicle maintenance activities) must also be recorded. All
required documentation shall be kept on -site for a period of five years and made available to
the Director or his authorized representative immediately upon request.
2. Visual Monitoring
Visual monitoring requires a qualitative visual inspection of each stormwater outfall, regardless
of representative outfall status, for the purpose of evaluating the effectiveness of the
new sources of
Stormwater t stsl arson e required. Prevention V sual mon toring ogf stormwater outfalls doesenot pollution.
to be
analytical
performed during a representative storm event.

Permit NCO086169
Stormwater Discharge Characteristics
Fre uenc 1
Monitoring
Wpe2
Monitoring
Location3
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
stormwater pollution
Semi-annual
Visual
SDO
Frequency: The first visual monitoring event during the term of the permit must be
performed during the initial analytical monitoring event. All subsequent visual
monitoring will be performed twice per year, once in the spring and once in the fall.
2 Monitoring Type: Monitoring requires a qualitative observation of each stormwater outfall.
No analytical testing or sampling is required.
3 Sample Location: Stormwater Discharge Outfall (SDO - effluent at outfalls 001 and 002).
A(9). Stormwater Definitions
1. Best Management Practices (BMPs)
Schedules of activities, ..prohibitions of practices, maintenance procedures, and other
management practices to prevent or reduce the pollution of waters of the United States. BMPs
also include treatment requirements, operation procedures, and practices to control plant site
runoff, spillage or leaks, sludge or waste disposal, or drainage from raw material storage.
2. Bulk Storage of Liquid Products
Liquid raw materials, manufactured products, waste materials or by-products with a single
above ground storage container having a capacity of greater than 660 gallons or with multiple
above ground storage containers having a total storage capacity of greater than 1,320 gallons.
3. Point Source Discharge
Any discernible, confined and discrete conveyance, including but specifically not limited to, any
pipe, ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, or
concentrated animal feeding operation from which pollutants are or may be discharged to
waters of the state.
4. Runoff Coefficient
The fraction of total rainfall that is not infiltrated into or otherwise retained by the soil,
concrete, asphalt or other surface upon which it falls that will appear at the conveyance as
runoff.
5. Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure
plus sufficient freeboard to allow for the 25-year, 24-hour storm event.
l 6. Section 313 Water Priority Chemical
J A chemical or chemical category which:
a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund
Amendments and Reauthorization Act (SARA) of 1986, also titled the Emergency
Planning and Community Right -to -Know Act of 1986;

Permit NCO086169
b. Is present at or above threshold levels at a facility subject to SARA title III, Section 313
reporting requirements: and
C. That meet at least one of the following criteria:
(1) Is listed in Appendix D of 40 CFR part 122 on either Table II (organic priority
pollutants), Table III (certain metals, cyanides, and phenols) or Table IV (certain
toxic pollutants and hazardous substances);
(2) Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA
at 40 CFR 116.4: or
(3) Is a pollutant for which EPA has published acute or chronic water quality
criteria.
7. Significant Materials
Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents, and
plastic pellets; finished materials such as metallic products; raw materials used in food
processing or production; hazardous substances designated under section 101(14) of CERCLA;
any chemical the facility is required to report pursuant to section 313 of Title III of SARA:
fertilizers; pesticides; and waste products such as ashes, slag and - sludge that have the
potential to be released with stormwater discharges.
8. Significant Spills
Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable
quantities under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or.
section 102 of CERCLA (Ref: 40 CFR 302.4).
9. Stormwater Runoff
The flow of water which results from precipitation and which occurs immediately following
.rainfall or as a result of snowmelt.
10. Total Flow
The flow corresponding to the time period over which the sample collection occurs. The total
flow calculated based on the size of the area draining to the outfall, the amount of the built -
upon (impervious) surfaces within the drainage area, and the total amount of rainfall occurring
during the sampling period.
11. Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported by
water, air, gravity, or ice from its site of origin which can be seen with the unaided eye.

PART I
L The pern-ittee shall comply with Final Effluent Limitations specified for discharges in accordance
with the following schedule:
Permittee shall comply with Final Effluent Limitations by the effective date of the permit unless
specified below.
2. Permittee shall at all times provide the operation and maintenance necessary, to operate the
existing facilities at optimum efficiency.
3. No later than 14 calendar days following a date identified in the above schedule of compliance,
the permittee shall submit either a report of progress or, in the case of specific actions being
required by identified dates, a written notice of compliance or noncompliance. In the latter case,
the notice shall include the cause of noncompliance, any remedial actions taken, and the
probability of meeting the next schedule requirements.

Part II
Page 2 of 14
6. Concentration Measurement
a. The "average monthly concentration," other than for fecal coliform bacteria, is the sum of the
concentrations of all daily discharges sampled and/or measured during a calendar month on
which daily discharges are sampled and measured, divided by the number of daily discharges
sampled and/or measured during such month (arithmetic mean of the daily concentration
values). The daily concentration value is equal to the concentration of a composite sample or in
the case of grab samples is the arithmetic mean (weighted by flow value) of all the samples
collected during that calendar day. The average monthly count for fecal coliform bacteria is
the geometric mean of the counts for samples collected during a calendar month. This
limitation is identified as "Monthly Average" under "Other Limits" in Part I of the permit.
b. The "average weekly concentration," other than for fecal coliform bacteria, is the sum of the
concentrations of all daily discharges sampled and/or measured during a calendar week
(Sunday/Saturday) on which daily discharges are sampled and measured divided by the
number of daily discharges sampled and/or measured during such week (arithmetic mean of the
daily concentration values). The daily concentration value is equal to the concentration of a
composite sample or in the case of grab samples is the arithmetic mean (weighted by flow
value) of all the -samples collected during that, calendar day. The average weekly count for
fecal coliform bacteria is the -geometric mean of the counts for samples collected during a
calendar week. This limitation is identified as "Weekly Average" under "Other Limits" in
Part I of the permit.
c. The "maximum daily concentration" is the concentration of a pollutant discharge during a
calendar day. If only one sample is taken during any calendar day the concentration of
pollutant calculated from it is the "Maximum Daily Concentration'`. It is identified as "Daily
Maximum" under "Other Limits" in Part I of the permit.
d. The "average annual concentration," other. than for fecal coliform bacteria, is, the sum of the
concentrations of all daily discharges sampled and/or measured during a calendar year on
which daily discharges are sampled and measured divided by the number of daily discharges
sampled and/or measured during such year (arithmetic mean of the daily concentration
values). The daily concentration value is equal to the concentration of a composite sample or in
the case of grab samples is the arithmetic mean (weighted by flow value) of all the samples
collected during that calendar day. The average yearly count for fecal coliform bacteria is the
geometric mean of the counts for samples collected during a calendar year. This limitation is
identified as "Annual Average" under "Other Limits" in Part I of the permit.
e. The "daily average concentration" (for dissolved oxygen) is the minimum allowable amount of
dissolved oxygen required to be available in the effluent prior to discharge averaged over a
calendar day. If only one dissolved oxygen sample is taken over a calendar day, the sample is
considered to be the "daily average concentration" for the discharge. It is identified as "daily
average" in the text of Part I.
f. The "quarterly average concentration" is the average of all samples taken over a calendar
quarter. It is identified as "Quarterly Average Limitation" in the text of Part I of the permit.
g. A calendar quarter is defined as one of the following distinct periods: January through March,
April through June, July through September, and October through December.

Part R
Page 4 of 14
10. Calendar DaY
A calendar day is defined as the period from midnight of one day until midnight of the next day.
However, for purposes of this permit, any consecutive 24-hour period that reasonably represents
the calendar day may be used for sampling.
11. Hazardous Substance
A hazardous substance means any substance designated under 40 CFR Part 116 pursuant to Section
311 of the Clean Water Act.
12. Toxic Pollutant
A toxic pollutant is any pollutant listed as toxic under Section 307(a)(1) of the Clean Water Act.
SECTION B. GENERAL CONDITIONS
I . Duty to Comply
The permittee must comply with. all conditions of this permit. Any permit noncompliance
constitutes a violation of the.Clean Water Act and is grounds for enforcement action; for permit
termination, revocation and reissuance, or modification; or denial of a permit renewal application.
a. The permittee shall comply with effluent standards or prohibitions established under section
307(a) of the Clean Water Act for toxic pollutants and with standards for sewage sludge use or
' disposal established under section 405(d) of the Clean Water Act within the time provided in
the regulations that establish these standards or prohibitions or standards for sewage sludge
use or disposal, even if the permit has not yet been modified to incorporate the requirem_ent.
b. The Clean Water Act provides that any person who violates a permit condition is subject to a
civil penalty not to exceed $25,000 per day for each violation. Any person who negligently
violates any permit condition is subject to criminal penalties of $2,500 to $25,000 per day of
violation, or imprisonment for not more than 1 year, or both. Any person who knowingly
violates permit conditions is subject to criminal penalties of $5,000 to $50,000 per day of
violation, or imprisonment for not more than 3 years, or both. Also,.any person who violates a
permit condition may be assessed an administrative penalty not to exceed $10,000 per violation
with the maximum amount not,to exceed $125,000. [Ref: Section 309 of the Federal Act 33
US-C. 1319 and 40 CFR 122A1 (a)]
c. Under state law, a civil penalty of not more than ten thousand dollars ($10,000) per violation
may be assessed against any person who violates or fails to act in accordance with the terms,
conditions, or requirements of a permit. [Ref: North Carolina General Statutes § 143-215.6M
d. Any person may be assessed an administrative penalty by the Administrator for violating
section 301, 302, 306, 307, 308, 318, or 405 of the Act,. or any permit condition or limitation
implementing any of such sections in a permit issued under section 402 of the Act.
Administrative penalties for Class 1 violations are not to exceed $10,000 per violation, with
the maximum amount of any Class I penalty assessed not to exceed $25,000. Penalties for Class
II violations are not to exceed $10,000 per day for each day during which the violation
continues, with the maximum amount of any Class 11 penalty not to exceed $125,000.

Pan 11
Page 6 of 14
10. Expiration of Permit
The permittee is not authorized to discharge after the expiration date. In order to receive
automatic authorization to discharge beyond the expiration date, the permittee shall submit such
information, forms, and fees as are required by the agency authorized to issue permits no later than
180 days prior to the expiration date. Any permittee that has not requested renewal at least 180
days prior to expiration, or any permittee that does not have a permit after the expiration and has
not requested renewal at least 180 days prior to expiration, will subject the permittee to enforcement
procedures as provided in NCGS 143-215.6 and 33 USC 1251 et. seq.
11. Signatory RMirements
All applications, reports, or information submitted to the Permit Issuing Authority shall,be signed
and certified.
a. All permit applications shall be signed as follows:
(1) For a corporation: by a responsible corporate officer. For the purpose of this Section, a
responsible corporate officer means: (a) a president, secretary, treasurer or vice president
of the corporation in charge of a principal business function, or any other person who
performs similar policy or decision making functions for the corporation, or (b) the manager
of one or more manufacturing production or operating facilities employing more than 250
persons or having gross annual sales or expenditures exceeding 25 million (in second quarter
1980 dollars), if authority to sign documents has been assigned or delegated to the manager
in accordance with corporate procedures.
-) (2) For a partnership or sole proprietorship: by a general partner or the proprietor,
respectively; or
(3) For a municipality, State, Federal, or other public agency: by either a principal executive
officer or ranking elected official.
b. All reports required by the permit and other information requested by the Permit Issuing
Authority shall be signed by a person described above or by a duly authorized representative of
that person. A person is a duly authorized representative only if:
(1) The authorization is made in writing by a person described above;
(2) The authorization specified either an individual or. a position having responsibility for the
overall operation of the regulated facility. or activity, such as the position of plant
manager, operator of a well or well field, superintendent, a position of equivalent
responsibility, or an individual or position having overall responsibility for environmental
matters for the company. (A duly authorized representative may thus be either a named
individual or any individual occupying a named position.); and
(3) The written authorization is submitted to the Permit Issuing Authority.
c. Certification. Any person signing a document under paragraphs a. or b. -of this section shall
make the following certification:
"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 information submitted is, to the best of my knowledge and belief, trde,
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."

Part II
Page 8 of 14
3. ► :,:,.
It shall not be a defense for a permittee in an enforcement action that it would have been necessary
to halt or reduce the permitted activity in order to maintain compliance with the condition of this
permit.
4. Bypassing of Treatment Facilities
a. Definitions
(1) "Bypass" means the known diversion of waste streams from any portion of a treatment
facility including the collection system, which is not a designed or established or operating
mode for the facility.
(2) "Severe property damage" means substantial physical damage. to property, damage to the
treatment facilities which causes them to become inoperable, or substantial and permanent
loss of natural resources which can reasonably be expected to occur in the absence of a
bypass. Severe property damage does not mean economic loss caused by delays in
production.
b. Bypass not exceeding limitations.
The permittee may allow any bypass to occur which -does not cause effluent limitations to be
exceeded, but only if it also is for essential maintenance to assure efficient operation. These
bypasses are not subject to the provisions of Paragraphs c. and d. of this section.
�l C. Notice
> (1) Anticipated bypass. If the permittee knows in advance of the need for a bypass, it shall
submit prior notice, if possible at least ten days before the date of the bypass; including an
evaluation of the anticipated quality and affect of the bypass.
(2) Unanticipated bypass. The permittee shall submit notice of an unanticipated bypass as
required in Part II, E. 6. of this permif. (24 hour notice).
d. Prohibition of Bypass
(1) Bypass is prohibited and the Permit Issuing Authority may take enforcement. action against
a permittee for bypass, unless: '
(A) Bypass was unavoidable to. prevent loss of life, personal injury or severe property
damage;
(B) There were no feasible alternatives to the bypass, such as the use of auxiliary treatment
facilities, retention of untreated wastes or maintenance during normal periods of
equipment downtime. This condition is not satisfied if adequate backup equipment should
have been installed in the exercise of reasonable engineering judgment to prevent a bypass
which occurred during normal periods of equipment downtime or preventive maintenance;
and
(0 The permittee submitted notices as required under Paragraph c. of this section.
(2) The Permit Issuing Authority may approve an anticipated bypass, after considering its
adverse affects, if the Permit Issuing Authority determines that it will meet the three
conditions listed above in Paragraph d. (1) of this section.

• • ,:�° Part H
Page 10 of 14
1, Representative Sampling
Samples collected and measurements taken, as required herein, shall be characteristic of the
volume and nature of the permitted discharge. Samples collected at a frequency less than .daily
shall be taken on a day and time that is characteristic of the discharge over the entire period
which the sample represents. All samples shall be taken at the monitoring points specified in this
permit and, unless otherwise specified, before the effluent joins or is diluted by any other
wastestream, body of water, or substance. Monitoring points shall not be changed without
notification to and the approval of the Permit Issuing Authority.
2. Reporting
Monitoring results obtained during the previous month(s) shall be summarized for each month and
reported on a monthly Discharge Monitoring Report (DMR) Form (DEM No. MR 1, 1.1, 2, 3) or
alternative forms approved by the Director, DEM, postmarked no later than the 30th day
following the completed reporting period.
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.
Duplicate signed copies of these, and all- other reports required herein, shall be submitted to the
.following address:
Division of Water Quality
Water Quality Section
ATTENTION: Central Files
Post Office Box 29535
Raleigh, North Carolina 27626-0535
3. Flow Measurements
Appropriate flow measurement devices and methods consistent with accepted scientific practices
shall be selected and used to ensure the accuracy and reliability of measurements of the volume of
monitored discharges. The devices shall be installed, calibrated and maintained to. ensure that the
accuracy of the measurements are consistent with the accepted capability of that type of device.
Devices selected shall be capable of measuring flows with a maximum deviation of less than + 10%
from the true discharge rates throughout the range of expected discharge volumes. Once -through
condenser cooling water flow which is monitored by pump logs, or pump hour meters as specified in
Part I. of this permit and based on the manufacturer's pump curves shall not be subject to this .
requirement.
4. Test Procedures
Test procedures for the analysis of pollutants shall conform to the EMC regulations published
pursuant to NCGS 143-215.63 et. seq, the Water and Air Quality Reporting Acts, and to regulations
published pursuant to Section 304(g), 33 USC 1314, of the Federal. Water Pollution Control Act, as
Amended, and Regulation 40 CFR 136, or in the case of sludge use or disposal, approved under 40
CFR 136, unless otherwise specified in 40 CFR 503, unless other test procedures have been specified
in this permit.
To meet the intent of the monitoring required by this permit, all test procedures must produce
minimum detection and reporting levels that are below the permit discharge requirements and all
data generated must be reported down to the minimum detection or lower reporting level of the
procedure. If no approved methods are determined capable of achieving minimum detection and

Part lI
Page 12 of 14
SECTION E. REPORTING REQUIREMENTS
1. Chance in Discharge
All discharges authorized herein shall be consistent with the terms and conditions of this permit.
The discharge of any pollutant identified in this permit more frequently than or at a level in excess
of that authorized shall constitute a violation of the permit.
2. Planned Chango
The permittee shall give notice to the Director as soon as possible of any planned physical
alterations or additions to the permitted facility. Notice is required only when:
a. The.alteration or addition to a permitted facility may meet one of the criteria for determining
whether a facility is a new source in 40 CFR Part 122.29 (b); or
b. The alteration or addition could significantly change the nature. or increase the quantity elf
pollutants discharged. This notification applies to pollutants which are subject neither to
effluent limitations in the permit, nor to notification requirements under 40 CFR Part 122.42 (a)
(1).
c. The alteration or addition results in a significant change in. the permittee's sludge use or
disposal practices, and such alternation, addition or change may justify the application of
permit conditions that are different from or absent in the existing permit, including notification
of additional use or disposal sites not reported during the permit application process or not
reported pursuant to an approved land application plan.
3. Anticipated Noncompliance
The permittee shall give advance notice to the Director of any planned changes in the permitted
facility or activity which may result in noncompliance with permit requirements.
4. Iransfers
This permit is not transferable to any person except after notice to the Director. The Director may
require modification or revocation and reissuance of the permittee and incorporate such other
.requirements as may be necessary under the Clean Water Act.
S. Monitoring Rgports
Monitoring results shall be reported at the intervals specified elsewhere in this permit.
a. Monitoring results must be reported on a Discharge Monitoring Report (DMR) (See Part ll. D. 2
of this permit) or forms provided by the Director for reporting results of monitoring of sludge use
or disposal practices..
b. If the permittee monitors any pollutant more frequently than required by the permit, using test
procedures specified in Part II, D. 4. of this permit or in the case of sludge use or disposal,
approved under 40 CFR 503, or as specified in this permit, the results of this monitoring shall be
included in the calculation and reporting of the data submitted in the DMR.
c. Calculations for all limitations which require averaging of measurements shall utilize an
arithmetic mean unless otherwise specified by the Director in the permit.

Part II
Page 14 of 14
Persons reporting such occurrences by telephone shall also file a written report in letter form within
5 days following first knowledge of the occurrence.
10. Availability of Reports
Except for data determined to be confidential under NCGS 143-215.3(a)(2) or Section 308 of the
Federal Act, 33 USC 1318, all reports prepared in accordance with the terms shall be available for
public inspection at the offices of the Division of Water Quality. As required by the Act, effluent
data shall not be considered confidential. Knowingly making any false statement on any such
report may result in the imposition of criminal penalties as provided for in NCGS 143-2151(b)(2) or
in Section 309 of the Federal Act.
11. Penalties for Falsification of Reports
The Clean Water Act provides that any. person who knowingly makes any false statement,
representation, or certification in any record or other .document submitted or required to be
maintained under this permit, including monitoring reports or reports of compliance or
noncompliance shall, upon conviction, be punished by a fine of not more than $10,000 per violation,
or by imprisonment for not more than two years per violation, or by both.

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State of North Carolina n' C
1v �
Department of Environment
and Natural Resources
Division of Water Quality,
I
Michael F. Easley, Governor
William G. Ross, Jr., Secretary
Kerr T. Stevens, Director
Ms. Christy L. Hannan
Corning Incorporated
Post Office Box 1700
Concord, North Carolina
Dear Ms. Hannon:
S ti
V, e 4 0 �NMEWT
oo, , C� �� - 1)
May 16, 2001 _lll
U URCES
L 01--F1 C..p
MAY 2 1 2001
28026-1700 rrr gfilCTION
Subject: Draft NPDES a Io
Permit Number NCO086169
Midland Plant
Cabarrus County
Corning Incorporated applied for a modification to NPDES permit NCO086169 on December 15, 2000.
Specifically, Corning Incorporated requested an increase in the permitted flow.
This constitutes a `major' modification to the NPDES permit and requires a public comment period. The
Division is publishing a notice in the newspapers having general circulation in the Cabarrus County,
soliciting public comment on the draft permit. Following the 30-day public comment period, the Division
will review all pertinent comments and take appropriate action prior to issuance of the final permit.
Please review this draft permit modification carefully. Check to insure that the facility information is
correct, including address and location.
Please provide comments you have regarding this draft permit to DENR — DWQ NPDES Unit no later
than June 23, 2001.
The following items highlight changes that have been incorporated into the draft permit.
• The flow limit has changed to 0.142 MGD.
• After expansion beyond 0.107 MGD, the toxicity limit shall be 1.7%.
• Cadmium, copper and zinc monitoring have been added as monitoring requirements.
• Iron monitoring has been eliminated.
Note: the "boilerplate" language is considered standard conditions and cannot be changed to represent
individual facilities. The requirement to include standard permit conditions verbatim or by reference is
stipulated in 40 CFR 122.43.
If you have any questions concerning the draft permit for your facility, please call me at [phone],
extension 508.
Sincerely,
Michael J. Myers, EIT
NPDES Unit
€'
oiiTlmroaltr�a " e..—Awn
NPDESCentral Files
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROLINA 27699-1617 - TELEPHONE [phone]/FAX [phone]
AN EQUAL OPPORTUNITY AFFIRMATIVE ACTION EMPLOYER - 500/0 RECYCLED/ 10% POST -CONSUMER PAPER
VISIT US ON THE INTERNET @ http://h2o.enr.state.nc.us/NPDES

Permit Number: NCO086169
In
F
is hereby a
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
v th the provision--of-North Carolina General St
mulgated Ean-adopted,.by\the North ;Carolina
Water Pollu on Control Act, as amended,
F
i
' _............____.._.._r % ,Corninzincory .rates
a
/
f } Off Highway 601
....__.._.�.......__..." ___ate
Midland
Cabarrus County
to receiving waters designated as an unnamed tributary of Muddy Creek (outfall 001), an unnamed
tributary of 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 conditions set forth in
Parts I, II, III and IV hereof.
This permit shall become effective
This permit and authorization to discharge shall expire at midnight on October 31, 2003_
Signed this day
j- ..._._..........-_ _...__....�
i 3
f
j E
j } }
f
Kerr T. Stevens, Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit Number: NCO086169
is hereby authorized to:
1
2.
SUPPLEMENT TO PERMIT COVER SHEET
Corning Incorporated
Continue operation of a 0.107 MGD wastewater treatment facility (outfall 003) located at the
Corning Incorporated facility off of Highway 601 in Midland, Cabarrus County and consisting of the
following treatment units:
• Equalization tank
Gff=sp c tank
Two -Lamella clarifier
• Two neuUr lizatio i tanks
• NeutraAzaiion transfer tank
• Chloride stabilization tank
• Surge blend tank i --",,, r
kutl ortzation to Gon'
discharge of up to 0.1
i the Divi�ion of1Water Quality,
through oUtfW1 Q03 and
to
3. Discharge stormwater and boiler blowdown from a wet detention pond into an unnamed tributary of
Clear Creek (outfall 002), discharge stormwater from a wet retention pond into an unnamed tributary
of Muddy Creek (Outfall 001 — See A.(8.) Stormwater Monitoring, Controls and Limitations for
Permitted Discharges, for monitoring requirements), 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). All receiving streams are
classified C waters in the Yadkin -Pee Dee River basin.
_ . ..
.....--._...... - _ -- _
,
;

. �Vsll
Al.
;I Outfall 002,1,
County Boundary
• NPDES discharger
Hydrography
Highway
Coalition Monitoring Site
Benthic Site
Municipal boundary
N
A
0
PN
� we Me " 'WO"
Ouffall 003
Corning Incorporated Facility Information
State Grid: G 16 NE and G 17 NW
USGS Quad: Midland and Stanfield
NCO086169 Subbasin: 03-07-12
Cabarrus County
2 0 2 M eSa, Corning Inco orated

Permit Number: NCO086169
A. (I.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of this permit and lasting until permit expiration, the Permittee is
authorized to discharge from outfall serial number 002 — Stormwater and Humidification Boiler Blowdown. Such
discharges shall be limited and monitored by the Permittee as specified below:
unti nfr Characteristics
Limits;°
Mon1torrng+Requirements
* t
Monthly
Daily
Measurement
Sample 7Cype
Sample
Average
Average;
Frequency
Locatronl
,...;�
_~
... ~
.,L
.
Flow
Semi-annually
Estimate
Effluent
Temperature
Semi-annually
Grab
Effluent
Total residual chlorine
Semi-annually
Grab
Effluent
Footnotes:
1 The effluent for this outfall shall mean a point upstream of the mixing point with stormwater.
re-temperaturetof the iffluent w ll`be,regulated so that the temperature of the -receiving -'stream -does nit
crease mordjhan 2.8°C a�ove the nat�ral water temperature, Receivir vc ater temperature will not e#eed a
3ximum of
1
s /
shall be no d1hrdmium, zinc or copper added to the treatment syst m except as nke-approved additives to
A. (9
Thb-permittee:shall obtain atithorization from\theD.iui§ion 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.
The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
There shall be no discharge of floating solids or visible foam in other than trace amounts. -
Conditions related to the stormwater portion of this outfall can be found in A. (8.) Stormwater Monitoring, Controls
and Limitations for Permitted Discharges.
-
..............
1 t '

Permit Number: NCO086169
A. (2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning on the effective date of the permit and lasting until expansion beyond 0.107 MGD, the
Permittee is authorized to discharge from outfall serial number 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:
Flow 1 0.107 MGD I I Continuous I Estimate I Effluent'
Chloride
2/Week
Composite
Total Suspended Solids
30.0 mg/L
45.0 mg/L
Weekly
Composite
Temperature------_, —
— --
L Weekly ;
Grab----
i
PHi
t \Weekly i
.—Grab__...__:
iM
Ca4hnium
`t
=,
ii Monthly l
Grab
Copex j
I
Monthly
Grab
Z' c
_...._......._
1
MMonthly
Total Phosphorus i
r-
1
Quaiterly
mC ositei
Cl#onjc Toxicity ;
w
--- quarterly I
Composite
Pollutant Analysis/
Footnotes: / 1
e compliancd point fpr
—outfall Tile compliance•pomt
ow shall be ustrea of the non-contactaoomg water and boiler
for all other-par`ameters shall be at`the-Rocky River discharge
internal
2 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.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 After seven sampling events the permittee, may request (in writing) that the Division evaluate this parameter
and modify the permit accordingly.
5 Chronic Toxicity (Ceriodaphnia) at 1.0%; January, April, July and October; See A. (4.) Chronic Toxicity
Permit Limit (Qrtrly).
6 See A. (6.) Pollutant Analysis Condition.
See Special Condition A. (9.) Annual Shutdown Procedures Condition
There shall be no discharge of floating solids or visible foam in othe-- � i
Defintions: 7
MGD — Million gallons per day ;• _ �rw�
µg/L — Micrograms per liter s !
......__._...__ram

Permit Number: NCO086169
A. (3.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
During the period beginning upon expansion beyond 0.107 MGD and lasting until expiration, the Permittee is
authorized to discharge from outfall serial number 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:
2 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.
3 The pH shall not be less than 6.0 standard units nor greater than 9.0 standard units.
4 After seven sampling events the permittee, may request (in writing) that the Division evaluate this parameter
and modify the permit accordingly.
5 Chronic Toxicity (Ceriodaphnia) at 1.7%; January, April, July and October; See A. (5.) Chronic Toxicity
Permit Limit (Qrtrly).
6 See A. (6.) Pollutant Analysis Condition.
See Special Condition A. (9.) Annual Shutdown Procedures Condition
There shall be no discharge of floating solids or visible foam in other than trace amounts.
Definitions:...-
MGD — Million gallons per day
µg/L — Micrograms per liter
i F
1 .
r:
I
1'
Z j I rA�t
ng/L = NJilligram%per liter 1

Permit Number: NCO086169
A. (4.) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
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 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 January, April, July, October. 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 fast 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 11 Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions.
ronie-value for multiple concentrat
tration having no detectable impai
detectable impairment of reproduc
ls, exposure reg"es, anc� further s1
Effluent Toxicity Test Procedure"
testing results rgqutrea as pai
Form,( -1) for the months
ults'andfTHP3Bfor the Chro;
will be determined using
of`
in t
e lowest concentrationthat does
;table impairment," collection
forth Carolina Phase II Chronic
on the Effluent Discharg6
parameter code TGPjB #for the
-3 (original) is to be sent to the
Attention: North Carolina Division of Water Quality
Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be 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 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 Environmental Sciences Branch at the address
cited above.
Should the permittee fail to monitor during a
required during the following month.
Should any test data from this monitoring req
Quality indicate potential impacts to the recei
alternate monitoring requirements or limits.
tired, monitor.
I
ar`.olina Divis
and modified
t
be
Water
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.

Permit Number: NCO086169
A. (5.) CHRONIC TOXICITY PERMIT LIMIT (QRTRLY)
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 February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent
versions. The tests will be performed during the months of January, April, July, October. 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 II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions.
ronie-value fo multiple concentration tests will be determined using the geometrie-meanlof-the-hghest -
tration having rho detectable impairn�nt'of reprodgctioii o�,survival and the lowest concentrationithat does
detectable impairment of reproduction or survival: The definition of "detectable impairment," collection
Is, exposure reg es,Id further. statistical methods Are specified in tE e "NortlLCarolina Phase II�Ch�onic
Effluent Toxicity Test and
(Revised-Febiuq`y 199�8) or subsea uent versions.
icity testing results required as part of,this permit. condition-�vi1 be eq�#ered on the Effluent Disch rge
ring Form,( -1) far tl e months in which tests;4vere perforpe�� using the parameter code TGP3B or the
i1 results'andj HP3Bfo the Chronic\Value.dditionally, DVQorr AT-3 (original) is to be sent to the
Attention: North Carolina Division of Water Quality
Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be 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 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 Environmental Sciences Branch at the address
cited above.
Should the permittee fail to monitor duri
required during the following month.
Should any test data from this monitorin,
Quality indicate potential impacts to the
alternate monitoring requirements or limits.
aired, monitori
'ar`olina Divisi
and modified
ill be
Water
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.

Permit Number: NCO086169
A. (6.) POLLUTANT ANALYSIS CONDITION
The Permittee shall conduct a test for pollutants once per permit cycle at the effluent from the treatment plant. The discharge
shall be evaluated as follows:
1) A pollutant analysis of the effluent must be completed using EPA approved methods for the following analytic
fractions:
(a) purgeables (i.e., volatile organic compounds);
(b) acid extractables;
(c) base/neutral extractables;
(d) organochlorine pesticides and PCBs;
(e) herbicides; and
(f) metals and other inorganics.
Thi Mffual-Pollutant Analysis Tonii oring,• APAM) Require ent Reporting Form A and accompanyuig memo describes the
sampling and analysis, equitements and listsich6micals to be'ir�tcluded in the pollutant analysis. This momtormg requirement is
to be referred to as he 'Polluta it Analysis lylon toring Requirement" (PAM). j
2) Other significant lavels of organic chemicals must beAdentifi°edl4nd app oximateLy:quailtifled. For he purpose
of implementing ttfis requirement;�)argest 10 CiC/N1S p-' eaks in\the purgeable, base/neutral extraaab e, and
acid exractabl� fr #ctio; (r fewer than 10 if less than 1'0 UMMeintified pLks occur) for chemicals other than
those specified o�n
the AP ' Requirement kepor in Form A sh6pld be iaen(ified and approximately quantified
a stated 1h- the,,APAM Re�orting Form\A iistrAct ons. This paA,(it&4n i) 4the APAM requirement into be
-referred-to 5s the 10 significant peaks rule- -� —
A. (7.) BIOLOGICAL MONITORING CONDITION
The Permittee shall conduct an upstream and downstream benthic macroinvertebrate survey beginning June 2004
and lasting through September 2004. A report of the findings of this survey shall be completed and included with
the permit application package at the time of permit renewal.
For technical assistance regarding this permit requirement, please contact the Division's Biological Assessment Unit
at [phone].

Permit Number: NCO086169
A. (8.) STORMWATER MONITORING, CONTROLS AND LIMITATIONS FOR PERMITTED
DISCHARGES
FINAL LIMITATIONS AND CONTROLS FOR STORMWA TER DISCHARGES
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.
l . Stormwater Pollution Prevention Plans
The permittee shall develop and continue to update a Stormwater Pollution Prevention Plan, herein after referred to
as the Plan. The Plan shall be considered public information in accordance with Part III, Standard Conditions,
Section E.10. of this permit. The Plan shall include, at a minimum, the following items:
a. Site P1an:�The siteshall proved \a description` of t e physical facility and the potential pollutant
sources which mad be ex"" pected'to contribute to contamination of regul t-&—gw water'fffszhares�
site plan shall contain the following: j I ` `� �; ' i
(1) A?general locationmap-(tJS S quadrangle ml{� or appropriately -drafted -equivalent map),
sl>owrig t re facility's locatioon m relafion to trarlspo ation ouies and surface waters, and the name
of, the recery ' g water.(s)tt which the stbrmwa�er or tfall(si discharges_ If the discharge is to a
n unrcipalseparate storm sewer system; the-name�of jhe m� nicipality and the ultimate receiving
;waters, and accurate latitude\and longitude of the t)ouit(s) f c(ischaree must be shown;
A narrative --description of storage -practices, loadin&nd urloading activities, outdoor j
areas, dust or particulate generating or control processes, and waste disposal practices.
(3) A site map (or series of maps) drawn to scale with the distance legend indicating location of
industrial activities (including storage of materials, disposal areas, process areas, and loading and
unloading areas), drainage structures, drainage areas for each outfall and activities occurring in the
drainage area, building locations and impervious surfaces, the percentage of each drainage area
that is impervious. For each outfall, a narrative description of the potential pollutants which could
be expected to be present in the regulated stormwater discharge.
(4) A list of significant spills or leaks of pollutants that have occurred at the facility during the 3
previous years and any corrective actions taken to mitigate spill impacts.
(5) Certification 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 III, Standard Conditions, Section B.11.
Stormwater Management Plan: The stormwater management plan shall contain a narrative description of
the materials management practices employed which control or minimize the exposure of significant
materials to stormwater, including structuratand non-structural measures. The stormwater...management
Plan at a minimum shall inco orate;the-follow n i r
' x }. __ i......_._.....
(1) A study addressing the technical and e`conorr ie--feaSil lity of ch�nging'th`e-methods of bpperations
and/or storage practices to eliminate or reduceexposureo�materia s a d processes to st�rmwate
Wherever practicable the pe&Uttee should 9consider c°overing storage areas, material handling
operations, manufacturing or fueluig operations to pr, materials?e A sure to stormwater. In
areas where elimination of exposure is not practicable, -the stormwater management plan shall
document the feasibility of diverting the stormwater runoff away from areas of potential
contamination.
(2) A schedule to provide secondary containment for bulk storage of liquid materials, storage of
Section 313 of Title III of the Superfund Amendments and Reauthorization Act (SARA) water
priority chemicals, or storage of hazardous materials to prevent leaks and spills from
contaminating stormwater runoff. If the secondary containment devices are connected directly to

Permit Number: NCO086169
stormwater conveyance systems, the connection shall be controlled by manually activated valves
or other similar devices [which shall be secured with a locking mechanism] and any stormwater
that accumulates in the containment area shall be at a minimum visually observed prior to release
of the accumulated stormwater. Accumulated stormwater shall be released if found to be
uncontaminated. Records documenting the individual making the observation, the description of
the accumulated stormwater and the date and time of the release shall be kept for a period of five
years.
(3) A narrative description of Best Management Practices (BMPs) to be considered such as, but not
limited to, oil and grease separation, debris control, vegetative filter strips, infiltration and
stormwater detention or retention, where necessary. The need for structural BMPs shall be based
on the assessment of potential of sources contributing significant quantities of pollutants to
stormwater discharges and data collected through monitoring of stormwater discharges.
(4) Inspection schedules of stormwater conveyances and controls and measures to be taken to limit or
`",prevent erosion associated�Yvith the storm ter systems. {
C. € Spill Prevention and Response Plan: The Spill P eve�ti& and Response Plan shall incorporate a risk
assessment ofipote Q pollutant sources based on a rn�t vials inventory: of the facility. Facility personnel
(or team) responsible or.implement' the plat shall be identified in t$e_plan._A�esponsible p�ersQn shall
be on -site at ah times during facilityloperatior}s that have the potential to contaminate stormwaer > unoff
through spills or expo ure of atgials ass ociated-with-t'e facility operations,
d. Preventative/Maintenance and G�,od ouse�ee�ing Program. A preventative maintenance prograrp shall
--be-develord. The prc gram shall documept schedules of inspe0iorls and maintenance activitiess o
( _ tozrnwater control sy terns, plant ec uipr ient;and systems. Iitspactib_bf material handling are' -a d
regular cleaning schedules of these areas shall be incorporated into the program.
Training schedules shall be developed and training provided at a minimum on an annual basis on proper
spill response and cleanup procedures and preventative maintenance activities for all personnel involved in
any of the facility's operations that have the potential to contaminate stormwater runoff. Facility personnel
(or team) responsible for implementing the training shall be identified in the plan.
The Stormwater Pollution Prevention Plan shall identify a specific position(s) responsible for the overall
coordination, development, implementation, and revision to the Plan. Responsibilities for all components
of the Plan shall be documented and position(s) assignments provided.
g. Plan Amendment: The permittee shall amend the Plan whenever there is a change in design, construction,
operation, or maintenance which has a significant effect on the potential for the discharge of pollutants via
a point source to surface waters. The Stormwater Pollution Prevention Plan shall be reviewed and updated
on an annual basis.
The Director may notify the permittee when the Plan 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 Plan to meet minimum requirements. The permitteeyshall.provide certification
r
in writing (in accordance with Part III,__.._ Standard Conditions, Section Bj 1.) to the.D.irectorlthat.the-.changes
have been made.
h. Facility Inspections: Inspections of the facility and alb stormwate� systein's-shall) occur -at -a rriinimurh bn a
semiannual schedule, once in the fall (September - N6ve r ber) andtonq'elduring the spfing (April - June). The
inspection and any subsequent maintenQelactivifies performed shall;'b�e docu*nted 1 recording date nd time
of inspection, individual(s) making the inspection and a narrative description of the facility's stormwater control
systems, plant equipment and systems. Records of these inspections shall be incorporated into the Stormwater
Pollution Prevention Plan.
Visual monitoring as required in Part 11, Section A.2. shall be performed in addition to facility inspections.
i. Implementation: Implementation of the Plan shall include documentation of all monitoring, measurements,
inspections, maintenance activities and training provided to employees, including the log of the sampling
data. Activities taken to implement BMPs associated with the industrial activities, including vehicle .

Permit Number: NCO086169
maintenance activities, must also be recorded. All required documentation shall be kept on -site for a period
of five years and made available to the Director or his authorized representative immediately upon request.
Visual Monitoring
Visual 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 and
assessing new sources of stormwater pollution. No analytical tests are required. Visual monitoring of stormwater
outfalls does not need to be performed during a representative storm event.
2 Monitoring Type: Monitoring requires a qualitative observation of each stormwater outfall. No
analytical testing or sampling is required.
3 Sample Location: Stormwater Discharge Outfall (SDO —effluent at outfalls 001 and 002).
STORAIIWA TER DEFINITIONS
1. Best Management Practices (BMPs)
Schedules of activities, prohibitions of practices, maintenance procedures, and other management practices
to prevent or reduce the pollution of waters of the United States. BMPs also include treatment
requirements, operation procedures, and practices to control plant site runoff, spillage or leaks, sludge or
waste disposal, or drainage from raw material storage.
2. Bulk Storage of Liquid Products
Liquid raw materials, manufactu
storage container having a capac
containers having a total storage
3. Point Source Discharge
..... ............... .�� i __....._........_.......__..._........................_._..._......,
red products,'71iste materials or by-Or6ducts with a single above ground
ityo1 greater than Q60 gallons/'or wi'tli mu tip le;above.g�ound A age
capki of greater than-1,,326gall,ons_.... {
._.................. _.__../
Any discernible, confined and discrete conveyance, including but specifically not limited to, any pipe,
ditch, channel, tunnel, conduit, well, discrete fissure, container, rolling stock, or concentrated animal
feeding operation from which pollutants are or may be discharged to waters of the state.
4. Runoff Coefficient

Permit Number: NCO086169
5.
7
Q
The fraction of total rainfall that is not infiltrated into or otherwise retained by the soil, concrete, asphalt or
other surface upon which it falls that will appear at the conveyance as runoff.
Secondary Containment
Spill containment for the contents of the single largest tank within the containment structure plus sufficient
freeboard to allow for the 25-year, 24-hour storm event.
Section 313 Water Priority Chemical
A chemical or chemical category which:
a. Is listed in 40 CFR 372.65 pursuant to Section 313 of Title III of the Superfund Amendments and
-- _.,Reauthorization Act (SARA) of 1986, also -titled the Emergency-P-lanning-and; Community-Rieht-
b. Isy pi
re�qu.
C. That
i
(2)
(3 )
r above threshold levels ai afacility subject t SARA title III, Section 33
and
:d in appendi" ofl40;CFR part 122 o`n either Table II (organic priori
III (certairitmetals/cyanides, and phenols) �r Table IV (certain toxic I
Is listed as a hazardous substance pursuant to section 311(b)(2)(A) of the CWA at 40
CFR 116.4; or
Is a pollutant for which EPA has published acute or chronic water quality criteria.
Significant Materials
nts),
and
Includes, but is not limited to: raw materials; fuels; materials such as solvents, detergents, and plastic
pellets; finished materials such as metallic products; raw materials used in food processing or production;
hazardous substances designated under section 101(14) of CERCLA; any chemical the facility is required
to report pursuant to section 313 of Title III of SARA; fertilizers; pesticides; and waste products such as
ashes, slag and sludge that have the potential to be released with stormwater discharges.
Significant Spills
Includes, but is not limited to: releases of oil or hazardous substances in excess of reportable quantities
under section 311 of the Clean Water Act (Ref: 40 CFR 110.10 and CFR 117.21) or section 102 of
CERCLA (Ref: 40 CFR 302.4). ,_........___ i L...
Stormwater Runoff 1` _ __ ✓ f` j 't` E
The flow of water which results fromIptecipitafidJn and which occurs'iriimediately following rami all or as a
�� t
result of snowmelt.
i
10. Total Flow
The flow corresponding to the time period over which the sample collection occurs. The total flow
calculated based on the size of the area draining to the outfall, the amount of the built -upon (impervious)
surfaces within the drainage area, and the total amount of rainfall occurring during the sampling period.

Permit Number: NCO086169
11. Visible Sedimentation
Solid particulate matter, both mineral and organic, that has been or is being transported by water, air,
gravity, or ice from its site of origin which can be seen with the unaided eye.
A. (9.) Annual Shutdown Procedures Condition
On an annual basis, the permittee is permitted to discharge up to 100,000 gallons of non -contact cooling water and
flush water 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
BetzDearbom. recommendations. 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 reviewer the
Di�+ision upon request.
I i i
i Mf`
j ......_W....... '
T s
3
i

U
DENR/DWQ
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO086169
- Facility information,'
pp xcan,, ack ty , ane.; '
Corning, ncorporate — Midland Facility
pp icant ress
Box 1700, Concord, NC 28026-1700
aci, ity rest
14556 Highway 601 South
ermttte ow
currently requesting
ype o rite
o Industrial
Facil ity .ermit -tatus
etive requesting major mo i ication
ounty: ,.
a arrus
isce-r
a�aeous.-
eceiving : tream
„ce.
Muddy Creekegiona
i
Mooresville
(001), UT Clear
Creek (002),
Rocky River
(003)
Stream", _ass icatron:
opo,:,, ua
x'ste
o
ermxt rater
Michael Myers
u asm:'
- -
ate::
ay T6,
Dramage Area(m�2). , `'
NA
unmer: c s30
NA
Wit c s
,
verage
ow, ct s
a
.k..._..
o
at 0. 142
.f
MGD)
rtmary _9. e
SUMMARY OF FACILITY AND WASTELOAD ALLOCATION
Corning Incorporated manu actures optica fibers at its Midland facility in Cabarrus County. The facility
originally received its National Pollutant Discharge Elimination System (NPDES) permit in 1998.
Startup began late that year. The facility was issued a renewed NPDES permit on April 14, 2001, which
included an expanded flow to 0.107 MGD. On December 19, 2000, the Division of Water Quality
received a request for modification to the NPDES Permit, specifically, the facility requested a flow
expansion from 0.107 MGD to 0.142 MGD.
Wastewater generated includes sanitary wastewater, non -contact cooling wastewater, process wastewater,
stormwater, filter backwash water and boiler blowdown. Currently, sanitary wastewater is treated off -site
at the Muddy Creek Wastewater Treatment Plant. Wastewaters other than sanitary are treated and
discharge through one of three outfalls as summarized below.
Outfall 001
This discharge is comprised of 100% stormwater, collected in a stormwater detention pond. The
receiving stream is an unnamed tributary of Muddy Creek. Currently, no effluent limitations and
monitoring page is contained within the permit for this outfall, though stormwater controls are required.
Special Condition A. (6.) of the permit addresses stormwater discharges and applicable monitoring
requirements. This proposed modification would have no effect on the requirements for this outfall.
Outfall 002 .
This discharge is comprised of stormwater and humidification boiler blowdown. Wastewater is collected
in a stormwater detention pond prior to discharge into an unnamed tributary of Clear Creek. Effluent
limitations and monitoring have been applied and stormwater controls are required (Special condition A.
(6.) of the permit addresses stormwater discharges and applicable monitoring requirements). The
proposed modification will have no effect on the permit for this discharge.
Corning Fact Sheet
NPDES Renewal
Page 1

Outfall 003
This discharge is comprised of industrial process wastewater, non -contact cooling water, and carbon filter
backwash water. These wastewaters are neutralized and treated using a solids removal unit prior
discharge into the Rocky River. This proposal will increase industrial process and carbon filter backwash
wastewater flow to 0.142 MGD and total flow to 0.334 MGD (per application).
Note, from the above discussion, non -contact cooling water enters outfall 003 effluent line after the
treatment facility. Under this proposal, approximately 192,000 gallons per day (gpd) of non -contact
cooling water will be commingled with the process wastewater prior to discharge. The 0.142 MGD flow
limit shall apply to the process wastewater and instream waste concentration used to determine the
toxicity limit is based on the total flow (process + non -contact cooling water) discharged.
The flow limit of 0.142 MGD, includes sum of the industrial process wastewater and the carbon filter
backwash wastewater therefore, the compliance point for flow is upstream of the point at which non -
contact cooling water is introduced. Though the flow limit includes only industrial process wastewater
and carbon filter backwash wastewater, the toxicity testing limit has been established using an IWC
calculation using the entire anticipated flow from outfall 003 (about 334,000 gpd).
According to the priority pollutant analysis, the effluent discharged by the facility may contain
chloroform, aluminum, arsenic, cadmium, chromium, copper, nickel, selenium, zinc, chloride and
fluoride. The primary parameters of concern from outfall 003 (as indicated in Table 1) are chloride,
cadmium, copper and zinc. These parameters are discussed below.
Based on the Division's analysis this discharge does not pose a reasonable potential to cause an
exceedence of the North Carolina's Chronic Aquatic Life Action Level Standard for chloride. However,
the maximum predicted concentration using self -monitoring data is greater than the Criteria Maximum
Concentration (CMC). A numerical limit is not included since chloride is an action level water quality
standard and biomonitoring requirements are adequate to control toxicity due to chloride.
Based on the Division's analysis this discharge does not pose a reasonable potential to cause an
exceedence of the North Carolina's Chronic Aquatic Life Standard for cadmium. However, the
maximum predicted concentration using the reported value in the annual pollutant analysis monitoring
report is greater than the CMC. This analysis is based on one data point and an assumed coefficient of
variation of 0.6. Though no limit is proposed a monitoring requirement has been added in order to gather
sufficient data to evaluate this discharge.
Based on the Division's analysis this discharge does not pose a reasonable potential to cause an
exceedence of the North Carolina's Chronic Aquatic Life Action Level Standard for copper. However,
the maximum predicted concentration and the result in the annual pollutant analysis monitoring report are
greater than the CMC. Numerical limits for copper are not being included since copper is an action level
water quality standard and the biomonitoring requirements are adequate to control toxicity due to the
presence of copper in the facility effluent. The permittee may request that the Division reevaluate the
monitoring requirement after seven data points have been collected over seven months.
Based on the Division's analysis this discharge does pose a reasonable potential to cause an exceedence
of the North Carolina's Chronic Aquatic Life Action Level Standard for zinc. Numerical limits for zinc
are not being included since zinc is an action level water quality standard and the biomonitoring
requirements are adequate to control toxicity due to the presence of zinc in the facility effluent. Though
no limit is proposed, if the facility experiences chronic toxicity violations the discharge will be re-
evaluated according to the Division's Action Level Policy. The permittee may request that the Division
reevaluate the monitoring requirement after seven data points have been collected over seven months.
Corning Fact Sheet
NPDES Renewal
Page 2

Table 1. Identified Pollutants of Concern with Maximum Predicted Concentrations.
Parameter
Aquatic Life
Chronic
Allowable
Concentration'
Aquatic Life Half Final
Acute
Concentration
Annual Pollutant
Analysis Monitoring
Result
Maximum Predicted
Effluent
Concentration
Aluminum
5128 µg/L'
750 µg/L
360 µg/L
4752 µg/L'
Arsenic
2947 µg/L
340 µg/L
25 µg/L
330 µg/L3
Cadmium
117.9 µg/L
15 µg/L
3.0 µg/L
39.6 µg/L3
Chromium
2947.4 µg/L
1022 µg/L
13 µg/L
171.6 µg/L'
Copper
412.6 µg/L
7.3 µg/L
13 µg/L
171.6 µg/L3
Nickel
1473.7 µg/L
261 µg/L
1 l µg/L
145.2 µg/L3
Selenium
294.7 µg/L
N/A
5.0 µg/L
66 µg/L'
Zinc
2947.4 µg/L
67 µg/L
864 µg/L
11404 µg/L3
Chloride
14737.2 mg/L
860 mg/L
9,500 mg/L
14442.2 mg/L'
Fluoride
106.1 mg/L
N/A
2.09 mg/L
27.6 mg/L'
. based on North Laroima Chronic Aquatic Lue standard.
'based on Environmental Protection Agency (EPA) Chronic Aquatic Life Criterion.
' based on an assumed Coefficient of Variation (CV) of 0.6, per Technical Support Document.
a based on Reasonable Potential Analysis using the Technical Support Document methodology.
TOXICITY TESTING:
Current Requirement: Chronic P/F @ 1.0% at 0.107 MGD using Ceriodaphnia
Proposed Requirement: Chronic P/F @ 1.7% at 0.142 MGD using Ceriodaphnia
The above IWCs were calculated using a flow equal to the sum of the permitted flow at outfall 003 and the non -
contact cooling water contribution.
This facility has passed all toxicity tests since startup.
COMPLIANCE SUMMARY:
The facility has been in comp lance with its NPDES Permit.
INSTREAM MONITORING:
A benthic macromverte rate study was required in the original permit. That permit required the facility to complete
a benthic survey during the summer of 1999. The study was completed in August and submitted to the Division for
review. Dave Lenat of the Environmental Sciences Branch reviewed the study and provided the writer with
comments. His conclusion were in agreement with the study results, which indicated no biological impact from this
discharge. As the discharge will be expanding, the benthic survey requirement will be included with this renewal.
Expansion is not expected to be complete until late 2003. As such, the draft permit will require a benthic study be
completed during the summer of 2004. No other instream monitoring is required.
PROPOSED CHANGES:
Outfall 003 Flow Limit: The flow limit at outfall 003 has been modified in accordance with the facility's request.
IWC for Outfall 003: The IWC has been updated to reflect the increase in permitted flow at outfall 003. See the
Toxicity Testing portion of this report.
Cadmium monitoring for outfall 003, see discussion above.
Copper monitoring for outfall 003, see discussion above.
Zinc monitoring for outfall 003, see discussion above.
PROPOSED SCHEDULE FOR PERMIT ISSUANCE:
Draft Permit to Public Notice: May 16, 2001
Permit Scheduled to Issue: July 9, 2001
Coming Fact Sheet
NPDES Renewal
Page 3

STATE CONTACT:
I you ave any questions on any of the above information or on the attached permit, please contact Michael Myers
at [phone] ext. 508.
NAME: %JZt, �+� � � y = �� i.� DATE: Z,,% j
NPDES SUPERVISOR:
NAME: DATE:
Corning Fact Sheet
NPDES Renewal
Page 4

REGIONAL OFFICE COMMENT:
NAME:
REGIONAL SUPERVISOR:
DATE:
NAME: DATE:
Corning Fact Sheet
NPDES Renewal
Page 5

Corning Incorporated
Telecommunications Products Division
P.O. Box 1700
Concord, North Carolina 28026-170
704-569-6o00
May 8, 2001
CERTIFIED MAIL
RETURN RECEIPT REQUESTED
Mr. Dave Goodrich
M AY 10 2001 f
i=
DEFER - WATER QUALITY
POINT SOURCE BRAN•iCH
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. NCO086169
ATC, Engineer's Certification
Dear Mr. Goodrich:
CORNING
NC DEPT. 0F Ek!V1R0I`+,Nb_;:T
MAY 2 1 2001
WATER QUALI 71 IFC I
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
Coming, Inc.
Enclosures
Cc: Mooresville Regional Office, NCDENR

.- . f
Corning Incorporated
Concord Facility
Permit No. NCO086169
ENGINEER'S CERTIFICATION
FOR
CONSTRUCTION OF WASTEWATER TREATMENT FACILITIES
I �,V,05. /% rG!�- , 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; Moo C %0",OA6TE
• Construction of a 21,000 gallon equalization tank; Aobi if rpdETL
• Construction of two (2) 1.700 gallon neutralization tanks; Nor 6PmAkd7E
• Construction of a 66,000 gallon off -spec tank; /yDT Lip IrJ
• Construction of a 21,000 gallon surge/blend tank; COWOAsTE
• Construction of two (2) lamella clarifiers; and ONE t%idiA'1IvuTd
• 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. S rf Ar*.Y AwY- (4 AVi05) acs4CiPr1•A1
oc ✓ 3,00/s
Signature
Date % cpl
Registration No. Ox 4� G cf 4
Ma Division of Waw QtWity hereby
OdImDWiedges receipt ad ilt:Cepuwce of
Iftis Engine Ctf#icadoll
c
,%�rtrrrrfrr
�Ox s,
e
EAL
026634 1
F•• �NG IN •�iv.'
•........ • G
rrrRtill
eerrrt�,
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 1 B — treatment
of cooling tower blowdown from the Concord If 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 1 B (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 & 1 B. These
components are described in detail in ATC No. 086169ACB.
We will be ready to accept the combined Neutralization System
No. 1 and Cl & Cll HVAC Cooling Tower Blowdown in Sequences
1A & 1 B 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.
Corning Incorporated
Concord Facility
Contract No. 78600.001
May 7, 2001
Page 2 of 4

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.
Corning Incorporated
Concord Facility Page 3 of 4
Contract No. 78600.001
May 7, 2001

e
FIGURE 3 — SOLIDS REMOVAL UNIT
From Neut. System No. 1 & Concord I Cooling Tower Blowdown
From Softener Reqeneration Tank
From Lamella No. 3 Transfer Pum
From Concord II Cooling Tower Blowdown
From Neutralization Transfer Pumps No. 3 & 4
Sodium Bisulfite (NaHS03)
Static Mixer
Flocculant
Coagulant
Surge/Blend Tank Lamella Separator I Sludge
21,000 gallons I
I No. 3
Corning Incorporated
Concord Facility
Contract No. 78600.001
May 7, 2001
To Sludge Thickening Tank No. 21
Lamella No. 3 To Effluent Lift Station
Transfer Tank 11111
800 gallons (or recycle to Surge/Blend Tank,,
if out of control range)'
Page 4 of 4

Corning Incorporated
Telecommunications Products Division
P.O. Box 1700
Concord, North Carolina 28026-1700
704-569-6000
March 16, 2001
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:
9
MA.Q 19 2001
CORNING
Attached, please find the Engineer's Certification for Construction of Wastewater
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,
flovX-4—G&-l�
Christy Hannan
Environmental Control Engineer
Concord Plant
Corning, Inc.
Enclosures
Cc: I Iooresvi`lle ' egiori-Ta O�NUME L KE'l�R�

Corning Incorporated
Concord Facility
Permit No. NCO086169
ENGINEER'S CERTIFICATION
FOR
CONSTRUCTION OF WASTEWATER TREATMENT FACILITIES
I, D TiLmEG�TGRJ�L� , am a duly registered Professional Engineer
(please print)
in the State of North Carolina and have been authorized to observe (circle one ED
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; 41c-r�:�;o" O&LrYX
• Construction of a 21,000 gallon equalization tank; .�iDT �O�►JOI,�)'!r
• Construction of two (2) 1.700 gallon neutralization tanks;
• Construction of a 36.000 gallon off -spec tank; 4;P'VA*d-4 6
• Construction of a 21,000 gallon surge/blend tank; TE
• Construction of two (2) lamella clarifiers; and 60MP6676
• 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. ..tGE �TTAC�Y�7Ba/T 4 .3 RAG6Si Ale 1��.�CR/�%�d�✓
Df �•�T/f/CA•Ti'J�1I ,�¢S/S
Signature
Date 3 /�
Registration No. 0.2w/�
•`�N CAI
O.••'FESSip
s
G ! N ESP •• Div
• ' •' \
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.
Corning Incorporated
Concord Facility
Contract No. 78600.001
March 14, 2001
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
1 B. 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.
Page 1 of 3

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 Coolinq Tower Blowdown
From Softener Regeneration Tank
From Lamella No. 3 Transfer Pum
From Concord II Coolinq Tower Blowdown
From Neutralization Transfer Pumps No. 3 & 4
Sodium Bisulfite (NaHS03)
Static Mixer
Flocculant
Coagulant
Surge/Blend Tank Lamella Separator I Sludge
21,000 gallons No. 3
Corning Incorporated
Concord Facility
Contract No. 78600.001
March 14, 2001
To Sludge Thickening Tank No. 21
Lamella No. 3 To Effluent Lift Station
Transfer Tank
800 gallons (or recycle to Surge/Blend Tank,
if out of control range)
Page 3 of 3