NC0086169_Fact Sheet_20190723

FACT SHEET FOR EXPEDITED PERMIT RENEWALS
This form must be completed by Permit Writers for all expedited permits which do not require
full Fact Sheets. Expedited permits are generally simple 100% domestics (e.g., schools, mobile
home parks, etc) that can be administratively renewed with minor changes, but can include
facilities with more complex issues (Special Conditions, 303(d) listed water, toxicity testing,
instream monitoring, compliance concerns).
Basic Information for Expedited Permit Renewals
Permit Writer / Date
Brianna Young 7/23/19
Permit Number
NCO086169
Facility Name / Facility Class
Midland WWTP / PC-2
Basin Name / Sub -basin number
Yadkin Pee Dee / 03-07-12
Receiving Stream / HUC
Outfall 001: UT to Muddy Creek / 030401050
Outfall 002: UT to Clear Creek / 030401050
Outfall 003: Rocky River / 030401050
Stream Classification / Stream Segment
Outfall 001: C / 13-17-16
Outfall 002: C / 13-17-17
Outfall 003: C / 13-17
Does permit need Daily Maximum NH3
N/A
limits?
Does permit need TRC limits/language?
Alread resent
Does permit have toxicity testing? IWC (%) if
Yes; Outfall 003 IWC = 1.0% at 0.107 MGD
so
and 1.7% at 0.142 MGD (IWCs calculated
using flow equal to the sum of the permitted
flow at outfall 003 and the non -contact
cooling water contribution
Does permit have Special Conditions?
Yes; Biological monitoring, Stormwater
monitorin , and Annual shutdown procedures
Does permit have instream monitoring?
No
Is the stream impair d on 303 d list)?
Yes Outfall 002
Any obvious compliance concerns?
None
Any permit mods since lastpermit?
None
New expiration date
10/31/2023
Comments on Draft Permit?
Yes; See below
Facility Overview:
Corning Incorporated manufactures optical fibers at its Midland facility in Cabarrus
County. Wastewater generated includes sanitary wastewater, non -contact cooling
wastewater, process wastewater, stormwater, carbon filter backwash water, boiler
blowdown, cooling tower 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 retention
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. Part I, Section A. (7) of the permit addresses
stormwater discharges and applicable monitoring requirements.
Outfall 002:
This discharge is comprised of stormwater, non -contact cooling water, and
humidification boiler blowdown. Wastewater is collected in a wet detention pond prior to
discharge into an unnamed tributary of Clear Creek.
Outfall 003:
This discharge is comprised of industrial process wastewater, cooling tower blowdown,
and carbon filter backwash water. These wastewaters are neutralized and treated using a
solids removal unit prior discharge into the Rocky River.
Per the 2001 renewal factsheet:
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.
Impairment listing (Outfall 002)
Clear Creek From Long Branch to
13-17-17b C 2.8 FW Miles
Assessment Criteria Status Reason for Rating Parameter of Interest IR Category
Exceeding Criteria > 10% and >90 conf Turbidity (50 NTU, AL, FW miles) 5
Compliance History (January 2014 — December 2018):
• 1 NOV for chloride frequency violation
• 1 NOD for TSS daily max exceedance
• Passed all tox tests since January 2015 at Outfall 003
RPA:
There was no information available to run an RPA on for Outfalls 001 and 002.
When running the RPA for Outfall 003 at the maximum monthly average flow for Outfall
003 between January 2014 and November 2018 was 0.09193 MGD:
• Copper: No RP; Predicted max < 50% allowable concentration; monitoring
removed per RPA
• Chlorides: No RP; Predicted max < 50% allowable concentration; monitoring
removed per RPA
When running the RPA for Outfall 003 at the design discharge of 0.107 MGD:
• Cadmium: Removed in last permit renewal per RPA
• Zinc: Removed in last permit renewal per RPA

• Copper: No RP; Predicted max < 50% allowable concentration; monitoring
removed per RPA
• Chlorides: No RP; Predicted max < 50% allowable concentration; monitoring
removed per RPA
When running the RPA for Outfall 003 at the design discharge of 0.142 MGD:
• Cadmium: Removed in last permit renewal per RPA
• Zinc: Removed in last permit renewal per RPA
• Copper: No RP; Predicted max < 50% allowable concentration; monitoring
maintained at quarterly as previous permit RPA showed potential to exceed WQS;
consider for removal at next renewal
• Chlorides: No RP; Predicted max > 50% allowable concentration; monitoring
maintained at quarterly
Changes from previous permit to draft:
• Updated eDMR footnotes in A(1), A(2), and A(3), and language in A(10)
• Updated outfall map
• Added regulatory citations
• Added receiving stream characteristics on the Supplement to Permit Cover Sheet
• Updated address on cover sheet per renewal application
• Added parameter codes in A(1), A(2), and A(3)
• Added facility grade in A(1), A(2), and A(3)
• Monitoring for copper and chlorides removed in A(2) per RPA
• Hardness monitoring added in A(3) per the current WTP guidance
• Updated TRC footnotes in A(2) and A(3) and added footnote in A(1)
• Updated toxicity language in A(4) and A(5)
• Stormwater monitoring language in A(7) updated by the Stormwater Permitting
Branch
Changes from draft to final:
• Added biocide condition as A(9) to address new chemicals used identified during
the public comment period, and future chemical usage
o Permittee cannot discharge the chemicals identified below until the
Biocide form is submitted and approved by aquatic tox
Comments received on draft permit:
• Tim Haley (Corning, Inc.; via email 5/l/19): I want to add to Section 17 of the
Renewal application. Pasted below is a revised Section 17, with the additional
information highlighted in yellow for your inclusion in this permit.
o Corning has been successfully testing ProMoss filtration in cooling tower
sumps for the past year and no chemicals are discharged from these

streams. We are still evaluating the product, and if there is a need to return
to chemical treatment, the following chemicals would be used:
■ Suez Water — Spectrus OX1200, 70 lbs/million gallons treated
■ Suez Water — Foamtrol AF2290, 20 lbs/million gallons treated
■ Suez Water — Depositrol PY5200, 40 lbs/million gallons treated
■ Suez Water — Spectrus BD 1550, 90 lbs/million gallons treated
■ Suez Water — Gengard GN7112, 250 lbs/million gallons treated
■ Suez Water — Spectrus NXI 100, 500 lbs/million gallons treated
■ The closed -loop portion of the cooling water loops are blown -
down to the cooling tower sumps as -needed to refresh and/or
balance chemical levels
■ Suez Water — Corrshield NT4203, 2500 lbs/million gallons treated
■ Suez Water — Corrshield MD4107, 1500 lbs/million gallons treated
■ Suez Water — Spectrus NX1100, 230 lbs/million gallons treated
■ Suez Water — Spectrus NX1105, 230 lbs/million gallons treated
■ Suez Water — Inhibitor AZ8101, 33 lbs/million gallons treated
o I have no further comments on the draft permit.
• Susan Meadows (via email 6/4/19): If they want to add additional chemicals for
any reason, they need to fill out a "biocide form" for each chemical along with the
SDS sheets with ecological data and submit that to me/ATB for review. The
Biocide forms can be found on our website, under "Other Downloads" — "Biocide
Worksheet Form 101": https://deq.nc.gov/about/divisions/water-resources/water-
resource s-data/water-sciences-home-aaize/aquatic-toxicolo L,v-branch/downloads
• Tim Haley (via phone call 6/14/19): The new chemicals identified are currently
being used, but are being used in a closed loop system and are not being
discharged. However, they wish to begin discharging these chemicals.

Independent Tribune
Advertising Affidavit
PO Box 968
Hickory, NC 28603
NC DENR/DWQ
ATTN: WREN THEDFORD
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
Account Number
3142720
Date
April 03, 2019
Date Category Description Ad Number Ad Size
04/03/2019 Legal Notices
pubbC
North Cata aEm mentai managenw Commissiffomunit
lalMaaservleecenter
RaIeigl K 276sim
Notice d intent to Issue a NPDES Wastewater Permit
The North Carolina Environmental Management Commission proposes to
issue a NPDES wastewater discharge permit to the person(s) listed below.
Written commends regarding the proposed permit will be accepted until
30 days after the publish date of this notice. The Director of the NC Divi-
sion of Water Resources (DWR) may hold a public hearing should there be
asignificaant degree of public interest Please mail comments and/or infor.
mation requests to DWR at the above address interested persons may vis.
it the DWR at 512 N. Salisbury Street, Raleigh, NC to review information
on file. Additions! information on NPDES permits and this notice may be
found on our websk.://deo. httoncgov/abaut/divisions/water-resources
notices.or by calling (919) 707.360L Corning Incorporate requested re-
newal of permit NCOM69 for the Midland Plant WWfP in Cabarrus
County. This facility discharges treated industrial wastewater and
stomrwater to an unnamed tributary to Moldy Creek, an unnamed tributa-
ry to Clear Creek and the Rocky River in the Yadkin River Basin. The dts-
charge may impact f dine allocations in fftis portion of the Yadldn-Pee
Dee River Basin
Prlft.AprR3,201%
Public Notice North Carolina Environmental Management Comr 0000554981 2 x 26 L
Publisher of
Independent Tribune
Cabarrus County
Before the undersigned, a Notary Public of Iredell County, North Carolina, duly
commissioned, qualified, and authorized by law to administer oaths, in said
County and State; that he/she is authorized to make this affidavit and sworn
statement; that the notice or other legal advertisement, a copy of which is attached
hereto, was published in the Independent Tribune on the following dates:
04/03/2019
and that the said newspaper in which such notice, or legal advertisement was
published, was a newspaper meeting all the requirements and qualifications of
Section 1-597 of the General Statutes of North Carolina.
Assistant Bookkeeper
Newspaper reference: 0000554981
Sworn to and subscribed before me, this _r day of (� nr , 2019
01 Notary Public \�� P )I D D
�Q 900\G
' o\O' Go���y
My Commission expires: Mali 47, \te60 _
THIS IS NOT A BILL. PLEASE PAY FROM INVOICE. THANK YOU �'%�,��ORI H GP

From: Haley, Timothy D <[e-mail]>
Sent: Wednesday, May 01, 2019 1:54 PM
To: Young, Brianna A
Subject: [External] Comments on Draft Permit Review NC0086169
CAUTION: External email. Do not click links or open attachments unless you verify. Send all suspicious email as an
attachment to [e-mail]
Brianna,
As we discussed on the phone, I want to add to Section 17 of the Renewal application. Pasted below is a
revised Section 17, with the additional information highlighted in yellow for your inclusion in this permit.
17. List any chemicals that may be discharged (Please list and explain source and
potential amounts.)
Corning has been successfully testing ProMoss filtration in cooling tower sumps for the past year and no chemicals are
discharged from these streams. We are still evaluating the product, and if there is a need to return to chemical
treatment, the
following chemicals would be used:
Suez Water — Spectrus OX1200, 70 lbs/million gallons treated
Suez Water — Foamtrol AF2290, 20 lbs/million gallons treated
Suez Water — Depositrol PY5200, 40 lbs/million gallons treated
Suez Water — Spectrus BD 1550, 90 lbs/million gallons treated
Suez Water — Gengard GN7112, 250 lbs/million gallons treated
Suez Water — Spectrus NX1100, 500 lbs/million gallons treated
The closed -loop portion of the cooling water loops are blown -down to the cooling tower sumps as -needed to refresh
and/or balance chemical levels.
Suez Water — Corrshield NT4203, 2500 lbs/million gallons treated
Suez Water — Corrshield MD4107, 1500 lbs/million gallons treated
Suez Water — Spectrus NX1100, 230 lbs/million gallons treated
Suez Water — Spectrus NX1105, 230 lbs/million gallons treated
Suez Water — Inhibitor AZ8101, 33 lbs/million gallons treated
I have no further comments on the draft permit.
Timothy (Tim) D. Haley

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (i
Receiving Stream
HUC Number
Stream Class
❑ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (cfs)
Effluent Hardness -------------
Upstream Hardness -------------
Combined HardnessChronic
_
Combined Hardness Acute
Data Source(s)
❑ CHECK TO APPLY MODEL
Midland Plant WWTP
PC-2
NCO086169
003
0.092
Rocky River
0304010503
C
30.00
24.69
25 mg/L (Avg)
25mg/L(Avg)
25mg/L
25 mg/L
---- -------
REQUIRED DATA ENTRY
Par01
Par02
Par03
Par04
Par05
Par06E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par74
Par15
Par16
Par17
Par18
Par79
Par20
Par21
Par22
Par23
Par24
Table 2. Parameters of Concern
Name WQs Type Chronic Modifier Acute i Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.5899
FW
3.2396
ug/L
Chlorides
Aquatic Life
NC
230
FW
Chlorinated Phenolic Compounds
Water supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
117.7325
FW
905.0818
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
INC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
INC
7.8806
FW
10.4720
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
INC
1,800
FW
ug/L
Lead
Aquatic Life
INC
2.9416
FW
75.4871
ug/L
Mercury
Aquatic Life
INC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
37.2313
FW
335.2087
Ng/L
Nickel
Water Supply
INC
25.0000
WS
N/A
Ng/L
Selenium
Aquatic Life
INC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.2964
ug/L
Zinc
Aquatic Life
NC
126.7335
FW
125.7052
ug/L
NCO086169 Final FW RPA_Outfall 003_monthly max discharge, input
7/24/2019

REASONABLE POTENTIAL ANALYSIS
H1
Effluent Hardness
Date Data BDL=1/2DL Results
1 25 25 Std Dev.
2 Mean
3 C.V.
4 n
5 10th Per value
6 Average Value
7 Max. Value
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58 F
1
25.0000 2
0.0000 3
1 4
25.00 mg/L 5
25.00 mg/L 6
25.00 mg/L 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Upstream Hardness
Date Data BDL=1/2DL Results
25 25 Std Dev.
Mean
C.V.
n
10th Per value
Average Value
Max. Value
Use"PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
25.0000
0.0000
1
25.00 mg/L
25.00 mg/L
25.00 mg/L
NCO086169 Final FW RPA_Outfall 003_monthly max discharge, data
-3- 7/24/2019

REASONABLE POTENTIAL ANALYSIS
Date Data
1 1/7/2014
2 4/15/2014 <
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Cadmium
BDL=1/2DL Results
1 1 Std Dev.
0.5 0.25 Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL Par05
Values" then "COPY"
. Maximum data
points = 58
0.6250
0.6000
2
3.79
1.000 ug/L
3.790 ug/L
Date Data
1 1/2/2014
2 1/3/2014
3 1/7/2014
4 1/9/2014
5 1/14/2014
6 1/15/2014
7 1/21/2014
8 1 /22/2014
9 1 /28/2014
10 1 /29/2014
11 2/4/2014
12 2/5/2014
13 2/11/2014
14 2/12/2014
15 2/20/2014
16 2/21/2014
17 2/25/2014
18 2/26/2014
19 3/6/2014
20 3/7/2014
21 3/10/2014
22 3/11/2014
23 3/19/2014
24 3/20/2014
25 3/25/2014
26 3/26/2014
27 4/1/2014
28 4/3/2014
29 4/9/2014
30 4/10/2014
31 4/15/2014
32 4/17/2014
33 4/22/2014
34 4/23/2014
35 4/29/2014
36 4/30/2014
37 5/8/2014
38 7/15/2014
39 10/7/2014
40 1/13/2015
41 4/7/2015
42 7/7/2015
43 10/6/2015
44 1/12/2016
45 4/12/2016
46 7/19/2016
47 10/11/2016
48 1/17/2017
49 4/11/2017
50 7/18/2017
51 10/3/2017
52 1 /9/2018
53 4/3/2018
54 7/10/2018
55 10/23/2018
56
57
58
Chlorides
BDL=1/2DL
Results
6460
6460
Std Dev.
6120
6120
Mean
6300
6300
C.V.
5200
5200
n
7100
7100
6550
6550
Mult Factor =
8450
8450
Max. Value
8250
8250
Max. Pred Cw
1250
1250
1600
1600
9300
9300
9300
9300
9100
9100
8350
8350
6690
6690
8180
8180
8780
8780
9380
9380
8630
8630
9190
9190
9290
9290
9900
9900
9490
9490
9490
9490
10370
10370
9980
9980
9900
9900
9240
9240
8880
8880
9290
9290
7770
7770
8860
8860
9800
9800
9800
9800
8900
8900
9500
9500
8450
8450
9100
9100
8950
8950
7660
7660
9430
9430
7820
7820
8627
8627
7700
7700
10800
10800
11400
11400
10100
10100
9800
9800
8100
8100
9100
9100
8700
8700
8600
8600
8980
8980
19100
19100
11800
11800
Use"PASTE SPE
Values" then "CC
Maximum data po
58
8,706.5
0.2705
55
1.0
19100.0
19, 291.0
NCO086169 Final FW RPA_Outfall 003_monthly max discharge, data
-4- 7/24/2019

REASONABLE POTENTIAL ANALYSIS
Pall
Par21
CIAL-
Use "PASTE SPECIAL
Use "PASTE SF
Zinc
Values" then "I
IPY" .
Values" then "COPY"
Copper
,ints =
. Maximum data
. Maximum c
points = 5
points = 58
1
Date
1/7/2014
Data
4
BDL=1/2DL
4
Results
Std Dev.
4.5500
Date
1 1/7/2014
Data BDL=1/2DL
1670 1670
Results
Std Dev.
1086.1160
2
4/15/2014
2.8
2.8
Mean
5.9050
2 4/15/2014
134 134
Mean
902.0000
3
7/14/2014
8
8
C.V.
0.7705
3
C.V. (default)
0.6000
4
10/7/2014
7
7
n
20
4
n
2
5
1/12/2015
9.1
9.1
5
6
4/6/2015
4
4
Mult Factor =
1.47
6
Mult Factor =
3.79
mg/L
7
7/7/2015
4
4
Max. Value
20.00 ug/L
7
Max. Value
1670.0
mg/L
8
10/6/2015
10.7
10.7
Max. Pred Cw
29.40 ug/L
8
Max. Pred Cw
6329.3
9
1/12/2016
7.7
7.7
9
10
4/12/2016
<
5
2.5
10
11
7/19/2016
<
5
2.5
11
12
10/11/2016
<
5
2.5
12
13
1/17/2017
<
5
2.5
13
14
4/11/2017
13
13
14
15
7/18/2017
5.2
5.2
15
16
10/3/2017
<
5
2.5
16
17
1 /9/2018
20
20
17
18
4/3/2018
<
5
2.5
18
19
7/10/2018
<
10
5
19
20
10/23/2018
2.6
2.6
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
NCO086169 Final FW RPA_Outfall 003_monthly max discharge, data
-5- 7/24/2019

Midland Plant WWTP
NCO086169
Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM
Qw (MGD) =
0.0919
1Q10S (cfs) =
24.69
7Q10S (cfs) =
30.00
7Q10W (cfs) =
NO 7Q10w DATA
30Q2 (cfs) =
NO 30Q2 DATA
Avg. Stream Flow, QA (cfs) =
NO QA DATA
Receiving Stream:
Rocky River HUC 0304010503
DATA POINTS = 58
WWTP/WTP Class: PC-2
IWC% @ 1Q10S =
0.573810727
1WC% @ 7Q10S =
0.47272635
IWC% @ 7Q10W =
N/A
1WC% @ 30Q2 =
N/A
IW%C @ QA =
N/A
Stream Class:
C
Outfall 003
Qw = 0.09193 MGD
COMBINED HARDNESS (me/L)
Acute = 25 mg/L
Chronic = 25 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
U)
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
CY
a
D
Applied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standa
Acute: 564.578
No RP, Predicted Max < 50% of Allowable Cw - No
Cadmium
NC
0.5899 FW(7Q10s) 3.2396
ug/L
2 1
3.790
Monitoring required
Note: n <_ 9
C.V. (default)
---------------------------------------------
Chronic: 124.782
Limited data se
No value > Allowable Cw
Acute: NO WQS
No RP, Predicted Max < 50% of Allowable Cw - No
Chlorides
NC
230 FW(7Q10s)
mg/L
55 55
19,291.0
Monitoring required
— -- —
Chronic: 48,653.9
-------------------------
No value > Allowable Cw
Acute: 1,824.99
No RP, Predicted Max < 50% of Allowable Cw - No
Copper
NC
7.8806 FW(7Q10s) 10.4720
ug/L
20 13
29.40
-- --- --- —
Monitoring required
-------------------------
Chronic: 1,
No value > Allowable Cw
Acute: 21,907.1
No RP, Predicted Max < 50% of Allowable Cw - No
Zinc
NC
126.7335 FW(7Q10s) 125.7052
ug/L
2 2
6,329.3
Monitoring required
Note: n 5 9
C.V. (default)
---------------------------------------------
Chronic: 26,809.1
Limited data set
No value > Allowable Cw
NCO086169 Final FW RPA_Outfall 003_monthly max discharge, rpa
Page 7 of 52 7/24/2019

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
HUC Number
Stream Class
❑ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (cfs)
Effluent Hardness -------------
Upstream Hardness -------------
Combined HardnessChronic
_
Combined Hardness Acute
Data Source(s)
❑ CHECK TO APPLY MODEL
Midland Plant WWTP
PC-2
NCO086169
003
0.107
Rocky River
0304010503
C
30.00
24.69
25 mg/L (Avg)
25mg/L(Avg)
25mg/L
25 mg/L
---- -------
REQUIRED DATA ENTRY
Par01
Par02
Par03
Par04
Par05
Par06E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par74
Par15
Par16
Par17
Par18
Par79
Par20
Par21
Par22
Par23
Par24
Table 2. Parameters of Concern
Name WQs Type Chronic Modifier Acute i Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.5899
FW
3.2396
ug/L
Chlorides
Aquatic Life
NC
230
FW
Chlorinated Phenolic Compounds
Water supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
117.7325
FW
905.0818
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
INC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
INC
7.8806
FW
10.4720
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
INC
1,800
FW
ug/L
Lead
Aquatic Life
INC
2.9416
FW
75.4871
ug/L
Mercury
Aquatic Life
INC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
37.2313
FW
335.2087
Ng/L
Nickel
Water Supply
INC
25.0000
WS
N/A
Ng/L
Selenium
Aquatic Life
INC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.2964
ug/L
Zinc
Aquatic Life
NC
126.7335
FW
125.7052
ug/L
NCO086169 Final FW RPA_Outfall 003_107MGD, input
7/24/2019

REASONABLE POTENTIAL ANALYSIS
H1
Effluent Hardness
Date Data BDL=1/2DL Results
1 25 25 Std Dev.
2 Mean
3 C.V.
4 n
5 10th Per value
6 Average Value
7 Max. Value
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58 F
1
25.0000 2
0.0000 3
1 4
25.00 mg/L 5
25.00 mg/L 6
25.00 mg/L 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Upstream Hardness
Date Data BDL=1/2DL Results
25 25 Std Dev.
Mean
C.V.
n
10th Per value
Average Value
Max. Value
Use"PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
25.0000
0.0000
1
25.00 mg/L
25.00 mg/L
25.00 mg/L
NCO086169 Final FW RPA_Outfall 003 107MGD, data
-3- 7/24/2019

REASONABLE POTENTIAL ANALYSIS
Date Data
1 1/7/2014
2 4/15/2014 <
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Cadmium
BDL=1/2DL Results
1 1 Std Dev.
0.5 0.25 Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL Par05
Values" then "COPY"
. Maximum data
points = 58
0.6250
0.6000
2
3.79
1.000 ug/L
3.790 ug/L
Date Data
1 1/2/2014
2 1/3/2014
3 1/7/2014
4 1/9/2014
5 1/14/2014
6 1/15/2014
7 1/21/2014
8 1 /22/2014
9 1 /28/2014
10 1 /29/2014
11 2/4/2014
12 2/5/2014
13 2/11/2014
14 2/12/2014
15 2/20/2014
16 2/21/2014
17 2/25/2014
18 2/26/2014
19 3/6/2014
20 3/7/2014
21 3/10/2014
22 3/11/2014
23 3/19/2014
24 3/20/2014
25 3/25/2014
26 3/26/2014
27 4/1/2014
28 4/3/2014
29 4/9/2014
30 4/10/2014
31 4/15/2014
32 4/17/2014
33 4/22/2014
34 4/23/2014
35 4/29/2014
36 4/30/2014
37 5/8/2014
38 7/15/2014
39 10/7/2014
40 1/13/2015
41 4/7/2015
42 7/7/2015
43 10/6/2015
44 1/12/2016
45 4/12/2016
46 7/19/2016
47 10/11/2016
48 1/17/2017
49 4/11/2017
50 7/18/2017
51 10/3/2017
52 1 /9/2018
53 4/3/2018
54 7/10/2018
55 10/23/2018
56
57
58
Chlorides
BDL=1/2DL
Results
6460
6460
Std Dev.
6120
6120
Mean
6300
6300
C.V.
5200
5200
n
7100
7100
6550
6550
Mult Factor =
8450
8450
Max. Value
8250
8250
Max. Pred Cw
1250
1250
1600
1600
9300
9300
9300
9300
9100
9100
8350
8350
6690
6690
8180
8180
8780
8780
9380
9380
8630
8630
9190
9190
9290
9290
9900
9900
9490
9490
9490
9490
10370
10370
9980
9980
9900
9900
9240
9240
8880
8880
9290
9290
7770
7770
8860
8860
9800
9800
9800
9800
8900
8900
9500
9500
8450
8450
9100
9100
8950
8950
7660
7660
9430
9430
7820
7820
8627
8627
7700
7700
10800
10800
11400
11400
10100
10100
9800
9800
8100
8100
9100
9100
8700
8700
8600
8600
8980
8980
19100
19100
11800
11800
Use"PASTE SPE
Values" then "CC
Maximum data po
58
8,706.5
0.2705
55
1.0
19100.0
19, 291.0
NCO086169 Final FW RPA_Outfall 003_107MGD, data
-4- 7/24/2019

REASONABLE POTENTIAL ANALYSIS
Pall
Par21
CIAL-
Use "PASTE SPECIAL
Use "PASTE SF
Zinc
Values" then "I
IPY" .
Values" then "COPY"
Copper
,ints =
. Maximum data
. Maximum c
points = 5
points = 58
1
Date
1/7/2014
Data
4
BDL=1/2DL
4
Results
Std Dev.
4.5500
Date
1 1/7/2014
Data BDL=1/2DL
1670 1670
Results
Std Dev.
1086.1160
2
4/15/2014
2.8
2.8
Mean
5.9050
2 4/15/2014
134 134
Mean
902.0000
3
7/14/2014
8
8
C.V.
0.7705
3
C.V. (default)
0.6000
4
10/7/2014
7
7
n
20
4
n
2
5
1/12/2015
9.1
9.1
5
6
4/6/2015
4
4
Mult Factor =
1.47
6
Mult Factor =
3.79
mg/L
7
7/7/2015
4
4
Max. Value
20.00 ug/L
7
Max. Value
1670.0
mg/L
8
10/6/2015
10.7
10.7
Max. Pred Cw
29.40 ug/L
8
Max. Pred Cw
6329.3
9
1/12/2016
7.7
7.7
9
10
4/12/2016
<
5
2.5
10
11
7/19/2016
<
5
2.5
11
12
10/11/2016
<
5
2.5
12
13
1/17/2017
<
5
2.5
13
14
4/11/2017
13
13
14
15
7/18/2017
5.2
5.2
15
16
10/3/2017
<
5
2.5
16
17
1 /9/2018
20
20
17
18
4/3/2018
<
5
2.5
18
19
7/10/2018
<
10
5
19
20
10/23/2018
2.6
2.6
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
NCO086169 Final FW RPA_Outfall 003_107MGD, data
-5- 7/24/2019

Midland Plant WWTP - Outfall 003
NCO086169 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 0.107 MGD
MAXIMUM
Qw (MGD) =
0.1070
1Q10S (cfs) =
24.69
7Q10S (cfs) =
30.00
7Q10W (cfs) =
NO 7Q10w DATA
30Q2 (cfs) =
NO 30Q2 DATA
Avg. Stream Flow, QA (cfs) =
NO QA DATA
Receiving Stream:
Rocky River HUC 0304010503
DATA POINTS = 58
WWTP/WTP Class: PC-2
IWC% @ 1Q10S =
0.667247348
1WC% @ 7Q10S =
0.549793889
IWC% @ 7Q10W =
N/A
1WC% @ 30Q2 =
N/A
IW%C @ QA =
N/A
Stream Class:
C
COMBINED HARDNESS (me/L)
Acute = 25 mg/L
Chronic = 25 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
a
Applied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standard
Acute: 485.519
No RP, Predicted Max < 50% of Allowable Cw - No
Cadmium
NC
0.5899 FW(7Q10s) 3.2396
ug/L
2 1
3.790
---------------------------------------------
Monitoring required
Note: n < 9
C.V. (default)
Chronic: 107.291
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data se
No value > Allowable Cw
Monitoring required
Acute: NO WQS
Chlorides
NC
230 FW(7Q10s)
mg/L
55 55
19,291.0
Chronic: 41,833.9
No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw
Monitoring required
Acute: 1,569.43
No RP, Predicted Max < 50% of Allowable Cw - No
Copper
NC
7.8806 FW(7Q10s) 10.4720
ug/L
20 13
29.40
Monitoring required
Chronic: 1,433.38
No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw
Monitoring required
Acute: 18,839.4
No RP, Predicted Max < 50% of Allowable Cw - No
Zinc
NC
126.7335 FW(7Q10s) 125.7052
ug/L
2 2
6,329.3
Monitoring required
Note: n < 9
C.V. (default)
---------------------------------------------
Chronic: 23,051.1
No RP, Predicted Max < 50% of Allowable Cw - No
Limited data set
No value > Allowable Cw
Monitoring required
NCO086169 Final FW RPA_Outfall 003_107MGD, rpa
Page 7 of 52 7/24/2019

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
Table 1. Project Information
❑ CHECK IF HQW OR ORW WQS
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (i
Receiving Stream
HUC Number
Stream Class
❑ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (cfs)
Effluent Hardness -------------
Upstream Hardness -------------
Combined HardnessChronic
_
Combined Hardness Acute
Data Source(s)
❑ CHECK TO APPLY MODEL
Midland Plant WWTP
PC-2
NCO086169
003
0.142
Rocky River
0304010503
C
30.00
24.69
25 mg/L (Avg)
25mg/L(Avg)
25mg/L
25 mg/L
---- -------
REQUIRED DATA ENTRY
Par01
Par02
Par03
Par04
Par05
Par06E
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par74
Par15
Par16
Par17
Par18
Par79
Par20
Par21
Par22
Par23
Par24
Table 2. Parameters of Concern
Name WQs Type Chronic Modifier Acute i Units
Arsenic
Aquactic Life
C
150
FW
340
ug/L
Arsenic
Human Health
Water Supply
C
10
HH/WS
N/A
ug/L
Beryllium
Aquatic Life
NC
6.5
FW
65
ug/L
Cadmium
Aquatic Life
NC
0.5899
FW
3.2396
ug/L
Chlorides
Aquatic Life
NC
230
FW
Chlorinated Phenolic Compounds
Water supply
NC
1
A
ug/L
Total Phenolic Compounds
Aquatic Life
NC
300
A
ug/L
Chromium III
Aquatic Life
NC
117.7325
FW
905.0818
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
INC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
INC
7.8806
FW
10.4720
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
INC
1,800
FW
ug/L
Lead
Aquatic Life
INC
2.9416
FW
75.4871
ug/L
Mercury
Aquatic Life
INC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
37.2313
FW
335.2087
Ng/L
Nickel
Water Supply
INC
25.0000
WS
N/A
Ng/L
Selenium
Aquatic Life
INC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.2964
ug/L
Zinc
Aquatic Life
NC
126.7335
FW
125.7052
ug/L
NCO086169 Final FW RPA_Outfall 0031421 input
7/24/2019

REASONABLE POTENTIAL ANALYSIS
H1
Effluent Hardness
Date Data BDL=1/2DL Results
1 25 25 Std Dev.
2 Mean
3 C.V.
4 n
5 10th Per value
6 Average Value
7 Max. Value
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58 F
1
25.0000 2
0.0000 3
1 4
25.00 mg/L 5
25.00 mg/L 6
25.00 mg/L 7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Upstream Hardness
Date Data BDL=1/2DL Results
25 25 Std Dev.
Mean
C.V.
n
10th Per value
Average Value
Max. Value
Use"PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
25.0000
0.0000
1
25.00 mg/L
25.00 mg/L
25.00 mg/L
NCO086169 Final FW RPA_Outfall 003 142MGD, data
-3- 7/24/2019

REASONABLE POTENTIAL ANALYSIS
Date Data
1 1/7/2014
2 4/15/2014 <
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
Cadmium
BDL=1/2DL Results
1 1 Std Dev.
0.5 0.25 Mean
C.V. (default)
n
Mult Factor =
Max. Value
Max. Pred Cw
Use "PASTE SPECIAL Par05
Values" then "COPY"
. Maximum data
points = 58
0.6250
0.6000
2
3.79
1.000 ug/L
3.790 ug/L
Date Data
1 1/2/2014
2 1/3/2014
3 1/7/2014
4 1/9/2014
5 1/14/2014
6 1/15/2014
7 1/21/2014
8 1 /22/2014
9 1 /28/2014
10 1 /29/2014
11 2/4/2014
12 2/5/2014
13 2/11/2014
14 2/12/2014
15 2/20/2014
16 2/21/2014
17 2/25/2014
18 2/26/2014
19 3/6/2014
20 3/7/2014
21 3/10/2014
22 3/11/2014
23 3/19/2014
24 3/20/2014
25 3/25/2014
26 3/26/2014
27 4/1/2014
28 4/3/2014
29 4/9/2014
30 4/10/2014
31 4/15/2014
32 4/17/2014
33 4/22/2014
34 4/23/2014
35 4/29/2014
36 4/30/2014
37 5/8/2014
38 7/15/2014
39 10/7/2014
40 1/13/2015
41 4/7/2015
42 7/7/2015
43 10/6/2015
44 1/12/2016
45 4/12/2016
46 7/19/2016
47 10/11/2016
48 1/17/2017
49 4/11/2017
50 7/18/2017
51 10/3/2017
52 1 /9/2018
53 4/3/2018
54 7/10/2018
55 10/23/2018
56
57
58
Chlorides
BDL=1/2DL
Results
6460
6460
Std Dev.
6120
6120
Mean
6300
6300
C.V.
5200
5200
n
7100
7100
6550
6550
Mult Factor =
8450
8450
Max. Value
8250
8250
Max. Pred Cw
1250
1250
1600
1600
9300
9300
9300
9300
9100
9100
8350
8350
6690
6690
8180
8180
8780
8780
9380
9380
8630
8630
9190
9190
9290
9290
9900
9900
9490
9490
9490
9490
10370
10370
9980
9980
9900
9900
9240
9240
8880
8880
9290
9290
7770
7770
8860
8860
9800
9800
9800
9800
8900
8900
9500
9500
8450
8450
9100
9100
8950
8950
7660
7660
9430
9430
7820
7820
8627
8627
7700
7700
10800
10800
11400
11400
10100
10100
9800
9800
8100
8100
9100
9100
8700
8700
8600
8600
8980
8980
19100
19100
11800
11800
Use"PASTE SPE
Values" then "CC
Maximum data po
58
8,706.5
0.2705
55
1.0
19100.0
19, 291.0
NCO086169 Final FW RPA_Outfall 003_142MGD, data
-4- 7/24/2019

REASONABLE POTENTIAL ANALYSIS
Pall
Par21
CIAL-
Use "PASTE SPECIAL
Use "PASTE SF
Zinc
Values" then "I
IPY" .
Values" then "COPY"
Copper
,ints =
. Maximum data
. Maximum c
points = 5
points = 58
1
Date
1/7/2014
Data
4
BDL=1/2DL
4
Results
Std Dev.
4.5500
Date
1 1/7/2014
Data BDL=1/2DL
1670 1670
Results
Std Dev.
1086.1160
2
4/15/2014
2.8
2.8
Mean
5.9050
2 4/15/2014
134 134
Mean
902.0000
3
7/14/2014
8
8
C.V.
0.7705
3
C.V. (default)
0.6000
4
10/7/2014
7
7
n
20
4
n
2
5
1/12/2015
9.1
9.1
5
6
4/6/2015
4
4
Mult Factor =
1.47
6
Mult Factor =
3.79
mg/L
7
7/7/2015
4
4
Max. Value
20.00 ug/L
7
Max. Value
1670.0
mg/L
8
10/6/2015
10.7
10.7
Max. Pred Cw
29.40 ug/L
8
Max. Pred Cw
6329.3
9
1/12/2016
7.7
7.7
9
10
4/12/2016
<
5
2.5
10
11
7/19/2016
<
5
2.5
11
12
10/11/2016
<
5
2.5
12
13
1/17/2017
<
5
2.5
13
14
4/11/2017
13
13
14
15
7/18/2017
5.2
5.2
15
16
10/3/2017
<
5
2.5
16
17
1 /9/2018
20
20
17
18
4/3/2018
<
5
2.5
18
19
7/10/2018
<
10
5
19
20
10/23/2018
2.6
2.6
20
21
21
22
22
23
23
24
24
25
25
26
26
27
27
28
28
29
29
30
30
31
31
32
32
33
33
34
34
35
35
36
36
37
37
38
38
39
39
40
40
41
41
42
42
43
43
44
44
45
45
46
46
47
47
48
48
49
49
50
50
51
51
52
52
53
53
54
54
55
55
56
56
57
57
58
58
NCO086169 Final FW RPA_Outfall 003_142MGD, data
-5- 7/24/2019

Midland Plant WWTP I Outfall 003
NCO086169 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 0.142 MGD
MAXIMUM
Qw (MGD) =
0.1420
1Q10S (cfs) =
24.69
7Q10S (cfs) =
30.00
7Q10W (cfs) =
NO 7Q10w DATA
30Q2 (cfs) =
NO 30Q2 DATA
Avg. Stream Flow, QA (cfs) =
NO QA DATA
Receiving Stream:
Rocky River HUC 0304010503
DATA POINTS = 58
WWTP/WTP Class: PC-2
IWC% @ 1Q10S =
0.883577344
1WC% @ 7Q10S =
0.728323202
IWC% @ 7Q10W =
N/A
1WC% @ 30Q2 =
N/A
IW%C @ QA =
N/A
Stream Class:
C
COMBINED HARDNESS (me/L)
Acute = 25 mg/L
Chronic = 25 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
U)
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
J
CY
a
D
Applied
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standa
Acute: 366.647
No RP, Predicted Max < 50% of Allowable Cw - No
Cadmium
NC
0.5899 FW(7Q10s) 3.2396
ug/L
2 1
3.790
Monitoring required
Note: n <_ 9
C.V. (default)
---------------------------------------------
Chronic: 80.991
Limited data se
No value > Allowable Cw
Acute: NO WQS
Chlorides
NC
230 FW(7Q10s)
mg/L
55 55
19,291.0
Chronic: 31,579.4
_
No RP , Predicted Max >_ 50% of Allowable Cw
No value > Allowable Cw
apply Quarterly Monitoring
Acute: 1,185.18
No RP, Predicted Max < 50% of Allowable Cw - No
Copper
NC
7.8806 FW(7Q10s) 10.4720
ug/L
20 13
29.40
Monitoring required
-- --- --- —
Chronic: 1,
-------------------------
No value > Allowable Cw
Acute: 14,226.8 No RP, Predicted Max < 50% of Allowable Cw - No
Zinc
NC
126.7335 FW(7Q10s) 125.7052
ug/L
2 2
6,329.3
Monitoring required
Note: n 5 9
C.V. (default)
---------------------------------------------
Chronic: 17,400.7
Limited data set
No value > Allowable Cw
NCO086169 Final FW RPA_Outfall 003_142MGD, rpa
Page 7 of 52 7/24/2019

NH3/TRC WLA Calculations
Facility: Midland Plant WWTP
PermitNo. NC0086169
Prepared By: Brianna Young
Enter Design Flow (MGD): 0.09193
Enter s7Q10 (cfs): 30
Enter w7Q10 cfs : 0
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/1)
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/1)
s7Q10 (CFS)
30
s7Q10 (CFS)
30
DESIGN FLOW (MGD)
0.09193
DESIGN FLOW (MGD)
0.09193
DESIGN FLOW (CFS)
0.142492
DESIGN FLOW (CFS)
0.14249
STREAM STD (UG/L)
17.0
STREAM STD (MG/L)
1.0
Upstream Bkgd (ug/1)
0
Upstream Bkgd (mg/1)
0.22
IWC (%)
0.47
IWC (%)
0.47
Allowable Conc. (ug/1)
3596
Allowable Conc. (mg/1)
165.2
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/1)
Fecal Coliform
w7Q10 (CFS)
0
Monthly Average Limit:
200/100ml DESIGN FLOW (MGD)
0.09193
(If DF >331; Monitor)
DESIGN FLOW (CFS)
0.14249
(If DF<331; Limit)
STREAM STD (MG/L)
1.8
Dilution Factor (DF)
211.54 Upstream Bkgd (mg/1)
0.22
IWC (%)
100.00
Allowable Conc. (mg/1)
1.8
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals)
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis)
If the allowable ammonia concentration is > 35 mg/L, no limit shall be imposed
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)

MONITORING REPORT(MR) VIOLATIONS for:
Permit: nc0086169 MRS Between 1 - 2014 and 1 - 2019 Region: %
Facility Name: % Param Name % County: %
Major Minor: %
Report Date: 01/15/19 Page: 1 of 1
Violation Category% Program Category:
Subbasin:%41 Violation Action: %
PERMIT: NCO086169
FACILITY: Corning Incorporated -Fiber Optic Facility
COUNTY: Cabarrus
REGION: Mooresville
Limit Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
01 -2014
003
Effluent
Solids, Total Suspended -
01/28/14
Weekly
mg/I
45
48
6.7
Daily Maximum
Proceed to NOD
Concentration
Exceeded
Monitoring Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
12 -2015
003
Effluent
Chloride (as CI)
12/31/15
Quarterly
mg/I
Frequency Violation
Proceed to NOV
11 -2014
003
Effluent
Chlorine, Total Residual
11/01/14
2 X week
ug/I
Frequency Violation
No Action, BIMS
Calculation Error
11-2014
003
Effluent
pH
11/01/14
Weekly
su
Frequency Violation
No Action, BIMS
Calculation Error
11 -2014
003
Effluent
Solids, Total Suspended -
11/01/14
Weekly
mg/I
Frequency Violation
No Action, BIMS
Concentration
Calculation Error
11 -2014
003
Effluent
Temperature, Water Deg.
11/01/14
Weekly
deg c
Frequency Violation
No Action, BIMS
Centigrade
Calculation Error
Reporting Violation
MONITORING
OUTFALL/
VIOLATION
UNIT OF
CALCULATED
%
REPORT
PPI
LOCATION
PARAMETER
DATE
FREQUENCY
MEASURE
LIMIT
VALUE
Over
VIOLATION TYPE
VIOLATION ACTION
07-2018
002
08/31/18
Ouffall Missing
No Action, Facility
Reporting Error
09-2018
002
10/31/18
Ouffall Missing
None

Water Resources
ENWRONMEUTAL GUALITY
May 01, 2018
Don L. Hefner
Corning Incorporated
310 N College Rd
Wilmington, NC 28405
Subject: Permit Renewal
Application No. NCO086169
Fiber Optic Facility
Cabarrus County
Dear Applicant:
ROY COOPER
Gmernar
AECHAEL S- REGAN
secretm l
LNDA CULPEPPER
Inter n Diracwr
The Water Quality Permitting Section acknowledges the April 30, 2018 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW
permitting branch. Per G.S. 15OB-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit.
The permit writer will contact you if additional information is required to complete your permit renewal. Please respond
in a timely manner to requests for additional information necessary to allow a complete review of the application and
renewal of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deg.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
State of North Carolina I Environmental Quality I Water Resources
1617 Mail Service Center I Raleigh, North Carolina 27699-1617
919-807-6300

CORNING
April 25, 2018
Wren Thedford
North Carolina Department of Environmental Quality
Division of Water Resources
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Corning Incorporated, Concord Facility
NPDES Permit NCO086169
Permit Renewal
Dear Ms. Thedford,
Corning Incorporated t704-569-6310
14556 Hwy 601 www coming com
Mdland, NC 28107
APR 3 � 201�
water Pesoufces
g section
permitV,
This letter is to request renewal of the NPDES permit for the Corning Incorporated, Optical Fiber
Facility, in Midland, NC, Cabarrus County. One signed copy of the renewal application form and
one signed copy of the facility's sludge management plan are enclosed. All submittals were
completed Tim Haley, Environmental Controls Engineer at the Midland facility.
Item 10 of the renewal application requests amounts of principal product produced or raw material
consumed. It is our understanding that this information is needed for facilities that are required to
meet Categorical Standards, which is not applicable to the Midland facility. For competitive
reasons, Corning has not provided this confidential information on submittals to DEQ divisions. If
the information is required to process the renewal, we will provide it under separate, confidential
cover.
Please contact Tim Haley at [phone] if there are any questions.
Sinc ,
on L. Hefner
Plant Manager
cc: DWR Regional Supervisor
610 East Center Avenue, Suite 301
Mooresville, NC 28115

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
Mail the complete application to:
N. C. DEQ / Division of Water Resources / NPDES
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number INCO086169
Please print or type.
1. Contact Information:
Owner Name
Facility Name
Mailing Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Corning Incorporated
Concord Optical Fiber
PO Box 1700
Concord
NC/28026-1700
[phone]
[phone]
haleytc (@gmail.com
2. Location of facility producing discharge:
Check here if same as above ❑
Street Address or State Road
City
State / Zip Code
County
14556 Hwy 601 South
Midland
NC/28107
Cabarrus
3. Operator Information:
Name of the firm, consultant or other entity that operates the facility. (Note that this is not referring to the
Operator in Responsible Charge or ORQ
Name Corning Incorporated
Mailing Address PO Box 1700
City
State / Zip Code
Telephone Number
Fax Number
4. Ownership Status:
Federal ❑
Concord
NC/28107
[phone]
[phone]
State ❑ Private
Public ❑
Corning Restricted
Page 1 of 5 C-MI 6/17

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
5. Standard Industrial Classification (SIC) code(s): 3229
6. Number of employees: 726
7. Describe the treatment system List all installed waste treatment components with capacities,
describe the processes that generate wastewaters. If the space provided is not sufficient attach a
separate sheet of paper with the system description.
The effluent air stream of the chemical vapor deposition process is controlled via wet
scrubbers. The resultant water effluent is treated via basic nutralization. Weak acid or
Sodium hydroxide is introduced to maintain pH between 6.0 and 9.0 standard units. The
neutralizations system is capable of handling 14gpm with 211 ppm of suspended solids
ranging from pH 1-14. As the solids loading decreases, the volume flow capacity of the
system increases. Flocculation may also be used.
S. Is facility covered under federal effluent limitation guidelines? No ® Yes ❑
If yes, specify the category?
9. Principal product(s) produced: Optical Fiber
Principal raw material(s) consumed: Silicas and Halides
Briefly describe the manufacturing process(es):
Raw Materials are combined in a process called outside vapor deposition. The resultant product is
ultra pure glass which is then drawn and coated to produce optical fiber used in telecommunications.
10. Amount of principal product produced or raw material consumed
(List specific amounts consumed and/or units of production over the last three years)
Product Produced or Raw Material
Consumed
AVERAGE
Product Produced or Raw Material
Consumed
PEAK
per Day
See Note below
See Note below
per Month
See Note below
See Note below
per Year
See Note below
See Note below
Note: There are no Categorical Standards applicable to this site, and Corning prefers to keep production and raw
materials consumptions confidential for competitive reasons. If needed, this information can be provided under
separate, confidential cover. This is consistent with the treatment of confidential information requested by other
NCDEQ divisions.
Corning Restricted
Page 2 of 5 C-MI 6/17

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
11. Frequency of discharge: Continuous ® Intermittent ❑
If intermittent:
Days per week discharge occurs: Duration:
12. Types of wastewater discharged to surface waters only
Discharge
Flow
GALLONS PER DAY
Sanitary - monthly average
27,000 - Outfall 001
Utility water, etc. - monthly average
27,500 - Outfall 002
Process water - monthly average
59,637 - Outfall 003
Stormwater - monthly average
Other - monthly average
Explain:
Monthly Average
114,137
total discharge (all types)
13. Number of separate discharge points: 3 Outfall Identification number(s) 001, 002, 003
14. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude):
Outfall 001 - Tributary to Muddy Creek
Outfall 002 - Tributary to Clear Creek
Outfall 003 - Rocky River
(See Appendix A for Map with outfall locations and coordinates)
Corning Restricted
Page 3 of 5 C-MI 6117

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
15. Effluent Data [for new or proposed discharges]
Provide data for the parameters listed. Temperature and pH shall be grab samples, for all other parameters 24-hour
composite sampling shall be used. If more than one analysis is reported, report daily maximum and monthly average.
If only one analysis is reported, report as daily maximum.
NOTE: Permittees requesting renewal should complete the table ONLY for the parameters
currenthi monitored. Summarize the ast 3 years of e cent data.
Parameter
Daily
Maximum
Monthly
Average
Units of
Measurement
Biochemical Oxygen Demand (BOD5)
Chemical Oxygen Demand (COD)
Total Organic Carbon
Total Suspended Solids
20.8
5.6
mg/L
Ammonia as N
Temperature (Summer)
37
33
°C
Temperature (Winter)
33
28
°C
pH
8.8
7.7
SU
Fecal Coliform (If sanitary waste is
present)
Total Residual Chlorine (if chlorine is
used)
23
<20
µg/L
16. List all permits, construction approvals and/or applications (check all that apply and provide permit
numbers or check none if not applicable):
Type Permit Number Type Permit Number
Hazardous Waste (RCRA)
UIC (SDWA)
NPDES
PSD (CAA)
Non -attainment program (CAA)
NCR000007856 NESHAPS (CAA)
NCO086169
Ocean Dumping (MPRSA)
Dredge or fill (Section 404 or CWA)
Other
Title V Air - 08436T17
17. List any chemicals that may be discharged (Please list and explain source and potential
amounts.)
Corning has been successfully testing ProMoss filtration in cooling tower sumps for the past year and no
chemicals are discharged from these streams. We are still evaluating the product, and if there is a need to
return to chemical treatment, the following chemicals would be used:
Suez Water - Spectrus OX1200, 70 lbs/million gallons treated
Suez Water - Foamtrol AF2290, 20 lbs/million gallons treated
Suez Water - Depositrol PY5200, 40 lbs/million gallons treated
Suez Water - Spectrus BD 1550, 90 lbs/million gallons treated
Suez Water - Gengard GN7112, 250 lbs/million gallons treated
Suez Water - Spectrus NX1100, 500 lbs/million gallons treated
Corning Restricted
Page 4 of 5 C-MI 6/17

NPDES PERMIT APPLICATION - SHORT FORM C - Minor Industrial
Minor industrial, manufacturing and commercial facilities.
18. Is this facility located on Indian country? (check one)
Yes ❑ No
19. Applicant Certification
I certify that I am familiar with the information contained in the application and that to the
best of my knowledge and belief such information is true, complete, and accurate.
of Person Signing
of
Z-1:14`
Title
Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false
statement representation, or certification in any application, record, report, plan, or other document files or
required to be maintained under Article 21 or regulations of the Environmental Management Commission
implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any recording or
monitoring device or method required to be operated or maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, shall be guilty of a misdemeanor punishable
by a fine not to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than 5 years, or both,
for a similar offense.)
Corning Restricted
Page 5 of 5 C-MI 6/17

NPDES PERMIT APPLICATION — SHORT FORM C — Minor Industrial
Minor industrial, manufacturing and commercial facilities.
Appendix A - Map of Outfalls with Coordinates
'•'' - '! 1�%xI,FO'(f't{ _-r'•�-pi+ ,�'f .rl a ��`1� ` c• Ge�� ..f'�l'• :It,.S (•
Palo
e t5�' t.-•+._ = ti 1�=J-• .. }• 4? -n a.{ }•J Nq3 O..ti -'
_ ���.r• � �' � -' ..- -..� Latitcdr: 35�'P3'02" ���- _ ,
A Land{JJ y
Slrie' °nn�itucPe: bc7�31!d5" _ �� '0 ty�t?•
v • � � 'may •, . c ,:"f-f.;. °�j{.f,�_•+� r-�'- � K o :, -
0t,lij)ll 'y �,
�"' �.'r`�`'f �} -� �74 ,t `fir~ y..• -��-"•.- 4� .. ti 1~ ' �
•,•}if4yxlis-CA
tom• y � ., • `�d " i 5G,` � _ r\' I/ i • --5 • -�2✓ . �L'�yJj _`.+y �i,c76 � -- {', 8f J � _
yl .. �.L_ - , 4 •' � �e 1\r'•`% F'.•1 'a � - '� j ` �h.- - �•-S � rCr�`'' :�., 't�_� ,:Ir � 1-'�� _
RevivinS S creams
`,pm �= 1 0 �r Cr.1, - U1 of }vfuddy Crack
OD2 -1JT of Clear C,eek
ROAD CLASSIFICATION
IMIt1ARY 11IGMYhY
�
j {C(tAp'. L,b LUftFAGEAAQ GR
HAR3'cUN'AC[.
sECQt03'AYIrtIt.VAY
rfariJ SURFACE L_
— — —
4.T,II,l�R01'Ep pflF.fr —
e See Above
Lon.ilude See Abow
G16NF1C17N�4'
Fjj, —
Sub -basin 03.07-12
SCALE 1.24 000
1 M11LE
4 7WO FEET
,<ILOMETi ER
I
CONTOUR INTLRVAL 10 REEF
S[seara-i Class C QUAD LOCATE[ N
00 tr'r Ind,lstnnl Gaming Incarpc�'ated
DischargeClass a - 1CY)0g6]69
Rcc,eivitr- Scream Sec Above � Cabarrus County
pggjecti (p 4.t>'33It7GL� _ }'Catn6t exFires 1 iii 31 Fiber Optic WoufacluTe.r
Page 6 of 5
Corning Restricted
C-MI 6/17

April 25, 2018
Sludge Management Narrative
Corning Incorporated Optical Fiber Facility, Midland, NC
The process wastewater treatment system includes equipment (clarifiers, sludge
thickening tanks, sludge holding tanks) and control systems designed to separate and
collect solids from the wastewater. No appreciable solids have been collected in any of
this equipment, thus disposal of sludge has not occurred since the plant has been in
operation.
In the event that the sludge holding tanks would need to be emptied, Environmental
Control, in conjunction with a waste consultant that is used regularly for waste
shipments, would characterize the waste and dispose of it in accordance with all local,
State, and Federal requirements.
I certify that I am familiar with the information contained in this narrative and
that to the best of my knowledge and belief such information is true, complete,
and accurate.
Printed name of Person Signing Title
S-
Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes
any false statement representation, or certification in any application, record, report, plan, or
other document files or required to be maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, or who falsifies, tampers
with, or knowingly renders inaccurate any recording or monitoring device or method required to
be operated or maintained under Article 21 or regulations of the Environmental Management
Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not
to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than
5 years, or both, for a similar offense.)
Corning Restricted

April 25, 2018
Sludge Management Narrative
Corning Incorporated Optical Fiber Facility, Midland, NC
The process wastewater treatment system includes equipment (clarifiers, sludge
thickening tanks, sludge holding tanks) and control systems designed to separate and
collect solids from the wastewater. No appreciable solids have been collected in any of
this equipment, thus disposal of sludge has not occurred since the plant has been in
operation.
In the event that the sludge holding tanks would need to be emptied, Environmental
Control, in conjunction with a waste consultant that is used regularly for waste
shipments, would characterize the waste and dispose of it in accordance with all local,
State, and Federal requirements.
I certify that I am familiar with the information contained in this narrative and
that to the best of my knowledge and belief such information is true, complete,
and accurate.
Printed name of Person Signing
of
C�
Title
Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes
any false statement representation, or certification in any application, record, report, plan, or
other document files or required to be maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, or who falsifies, tampers
with, or knowingly renders inaccurate any recording or monitoring device or method required to
be operated or maintained under Article 21 or regulations of the Environmental Management
Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not
to exceed $25,000, or by imprisonment not to exceed six months, or by both. (18 U.S.C. Section
1001 provides a punishment by a fine of not more than $25,000 or imprisonment not more than
5 years, or both, for a similar offense.)
Corning Restricted