NC0032662_Fact Sheet_20200820

DEQ/DWR
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES No. NCO032662
Facility Information
Applicant/FacilityName:
City of Claremont / North WWTP
Applicant Address:
PO Box 446, Claremont, NC 28610
Facility Address:
3076 Centennial Blvd., Claremont, NC 28610
Permitted Flow
0.1 MGD
Type of Waste:
Domestic
Facility/Permit Status:
Renewal
County:
Catawba
Miscellaneous
Receiving Stream:
Mull Creek
Sub -basin
03-08-32
Stream Classification:
WS-IV
HUC:
03050101
303(d) Listed?
No
State Grid / USGS Quad:
E14NW/Newton
Drainage Area miz :
4.21
Regional Office:
Mooresville
Summer 7Q10 cfs
1.0
Permit Writer:
Emily DelDuco
Winter 7Q10 (cfs)
1.6
Date:
June 7, 2020
Average Flow (cfs):
5.0
IWC C/o):
13
Summary
The City of Claremont owns the North WWTP, a 0.10 MGD wastewater treatment plant operated by the
Town of Hickory. The treatment system consists of two treatment trains. One train is 0.04 MGD with a
coarse bar screen, aeration basin (diffused aeration), final clarifier, and sludge holding tank. The second
train is 0.060 MGD with coarse bar screen, aeration basin (mechanical and diffused aeration), final clarifier,
and aerated sludge holding tank. Both trains share the influent flow splitter, gas chlorination, chlorine
contact chamber, gas dechlorination, and flow measurement. The City is planning to connect this facility
to the McLin Creek WWTP and decommission the treatment system.
Receiving Stream
This facility discharges to Mull Creek (Stream index: 11-76-4)in the Catawba River Basin, classified WS-
IV waters in Sub -basin 03-08-32, HUC 03050101. Mull Creek is not listed as impaired in the NC 2018
303(d) list.
DMR and Compliance Review
Notices of Violations (NOV) issued for aquatic tox limits exceedance in 7-2019.
3 enforcement cases this permit cycle for TSS and BOD exceedences.
Summary of Data
Upstream Data Sum
010 - Temperature, Water Deg. Centigrade 13.95
300 - Oxygen, Dissolved (DO) 9.63
900 - Hardness, Total (as CaCO3) 33841
Downstream Data Summe
Mini
Maxj
N
0.20
4.90
26500
25.00
17.20
39300
201
201
17
Parameter I Meanj Minj Maxj N
00010 - Temperature, Water Deg. Centigrade 14.39 0.00 25.00 201
100300 - Oxv2en, Dissolved (DO) 8.96 4.90 16.00 24
Fact Sheet
NPDES NCO032662 Permit Renewal
Page 1

Influent Data Sum
010 - Temperature, Water Deg. Centigrade
18.04
8.90
25.00
196
340 - Oxygen Demand, Chem. (High Level) (COD)
376.67
280.00
522.00
3
400 - pH
6.86
5.80
10.80
196
610 - Nitrogen, Ammonia Total (as N)
33.08
24.50
41.70
14
050 - Flow, in conduit or thru treatment plant
0.07
0.01
0.23
1492
)310 - BOD, 5-Day (20 Deg. C) - Concentration
443.44
2.00
1230.00
213
)530 - Solids, Total Suspended - Concentration
361.43
36.70
1440.00
213
)610 - Nitrogen, Ammonia Total (as N) - Concentration 28.62
7.53
48.50
182
)665 - Phosphorus, Total (as P) - Concentration
3.73
2.20
5.80
3
Effluent Data Summary
Parameter
Meani
Minj
Maxj
N
00010 - Temperature, Water Deg. Centigrade
17.47
8.50
26.00
213
00300 - Oxygen, Dissolved (DO)
8.32
5.00
12.00
213
00400 - pH
6.79
6.00
7.40
213
00900 - Hardness, Total (as CaCO3)
32458.82
25000.00 44600.00
17
01042 - Copper, Total (as Cu)
13.83
5.00
50.00
16
01092 - Zinc, Total (as Zn)
107.61
48.50
181.00
16
31616 - Coliform, Fecal MF, MFC Broth, 44.5 C
184.88
1.00
6000.00
225
50060 - Chlorine, Total Residual
20.00
20.00
20.00
429
C0310 - BOD, 5-Day (20 Deg. C) - Concentration
7.50
2.00
69.00
218
C0530 - Solids, Total Suspended - Concentration
10.30
2.50
220.00
219
C0600 - Nitrogen, Total - Concentration
9.84
5.60
15.90
16
C0610 - Nitrogen, Ammonia Total (as N) -
Concentration
0.85
0.10
10.70
215
C0665 - Phosphorus, Total (as P) - Concentration
1.97
0.54
5.00
16
COMER - Mercury, Total (as Hg) - Concentration
3.13
2.56
3.70
2
Mercury Evaluation:
Two mercury samples were taken this permit cycle. The values reported were 3.7 and 2.56 ng/L. This is
well below the stream standard of 12 ng/L. A monitoring requirement of once per permit cycle will
remain, since no need is demonstrated for limits.
Aquatic Toxicity Testing:
Permit requires chronic toxicity, ceriodaphnia dubia, 13 %. The facility failed one test in July 2019.
Reasonable Potential Analysis:
A reasonable potential analysis was completed for copper and zinc. These parameters don't show
reasonable potential to exceed the action level standards but the predicted concentration is higher than 50%
of the allowable concentration. Therefore, quarterly monitoring will remain in place.
Instream Monitoring:
The permit requires instream monitoring for DO and temperature. Reported values show similar trends for
upstream and downstream locations and are within water quality standards.
Fact Sheet
NPDES NCO032662 Permit Renewal
Page 2

Summary of Proposed Changes:
1. Updated outfall description on supplement to cover page to include HUC.
2. Regulatory citations for permit requirements have been added throughout the permit.
3. The language in section A.(3.) has been updated to be consistent with the finalization of
federal requirements for electronic reporting.
4. The language in section A.(2.) has been updated to be include electronic reporting
reporting requirements for aquatic toxicity.
5. Ammonia Nitrogen (NH3-N) Monitoring — The previous permit had a year round limit
for NH3-N of 6 mg/L (monthly average) and 18 mg/L (weekly average). Monitoring is
required at the same frequency year round, but there is no separate limit during winter
months (November — March). Ammonia is the only toxicant limited differently for
summer and winter months per DWR policy.
Recent review by Division staff has noted that 15A NCAC 2B .0404(c) requires that
winter waste load allocations for oxygen consuming waste be no less stringent than 2
times the summer waste load limit. To meet this rule requirement winter limits for NH3-
N are being added to the permit.
In accordance with the rule and results from the mass balance review, the winter limit can
be set by doubling the summer limit. Based on this, the new winter monthly average
limit is 12 mg/L. The Division has historically set NH3-N limits no higher than 35 mg/L.
Winter NH3-N limits for the permit will be set at 35 mg/L for the weekly average.
6. Footnote was added to effluent table to clarify summer and winter months
Fact Sheet
NPDES NCO032662 Permit Renewal
Page 3

Whole Effluent Toxicity Testing and Self Monitoring Summary
Claire Sprayway Site Remediation
NCO089206/001
County:
Mecklenburg
Region:
MRO
Basin:
CTB34
Jan Apr Jul Oct
Ceri7dPF Begin:
1/1/2013
Chr Lim: 90%
NonComp:
7Q10:
PF: 0.05
IWC:
Freq: Q
J
F M
A M
J
J
A
S
O
2016 Pass
- -
Pass -
-
Pass
-
-
Pass
2017 Pass
- -
Pass -
-
Pass
-
-
Pass
2018 Pass
- -
Pass -
-
Pass
-
-
H
2019 H
- -
H -
-
H
-
-
Pass
2020 Pass
- -
- -
-
-
-
-
-
Claremont - McLin Creek WWTP
NCO081370/001
County:
Catawba
Region:
MRO
Basin:
CTB32
Jan Apr Jul Oct
Ceri7dPF Begin:
1/1/2016
chr lim: 9% @ 0.3MG
NonComp: Single
7Q10:
5.0
PF: 0.3
IWC: 9.0
Freq: Q
J
F M
A M
J
J
A
S
O
2016 Pass
- -
Pass -
-
Pass
-
-
Pass
2017 Pass
- -
Pass -
-
Pass
-
-
Pass
2018 Pass
- -
Pass -
-
Pass
-
-
Pass
2019 Pass
- -
Pass -
-
Pass
-
-
Pass
2020 Pass
- -
- -
-
-
-
-
-
Claremont North WWTP
NCO032662/001
County:
Catawba
Region:
MRO
Basin:
CTB32
Jan Apr Jul Oct
Ceri7dPF Begin:
1/1/2016
chr lim: 13%
NonComp: Single
7Q10:
1.0
PF: 0.10
IWC: 13
Freq: Q
J
F M
A M
J
J
A
S
O
2016 Pass
- -
H -
-
Pass
-
-
Pass
2017 Pass
- -
Pass -
-
Pass
-
-
Pass
2018 Pass
- -
Pass -
-
Pass
-
-
Pass
2019 Pass
- -
Pass -
-
Fail
>52
>52
Pass
2020 Pass
- -
- -
-
-
-
-
-
Clariant Corp. -Mt. Holly Plant
NC0004375/001
County:
Mecklenburg
Region:
MRO
Basin:
CTB34
Mar Jun Sep Dec
Ceri7dPF Begin:
1/1/2018
Chr Lim: 0.8
NonComp: Single
70.10:
329
PF: 3.9
IWC: 1.8
Freq: Q
J
F M
A M
J
J
A
S
O
2016 -
- Pass
- -
Pass
-
-
Pass
-
2017 -
- Pass
- -
Pass
-
-
Pass
-
2018 -
- Pass
- -
Pass
-
-
Pass
-
2019 -
- Pass
- -
Pass
-
-
Pass
-
2020 -
- Pass
- -
-
-
-
-
-
Clarkton WWTP
NCO021610/001
County:
Bladen
Region:
FRO
Basin:
LUM58
Jan Apr Jul Oct
Ceri7dPF Begin:
6/1/2010
chr lim: 90%
NonComp: Single
7Q10:
0.0
PF: 0.24
IWC: 100
Freq: Q
J
F M
A M
J
J
A
S
O
2016 Pass
- -
Pass -
-
Pass
-
-
Pass
2017 Pass
- -
Pass -
-
Pass
-
-
Pass
2018 Pass
- -
Pass -
-
Pass
-
-
Pass
2019 Pass
- -
Pass -
-
Pass
-
-
Pass
2020 Pass
- -
- -
-
-
-
-
-
SOC JOC:
N
SOC JOC:
N
SOC JOC:
N
SOC JOC:
N
SOC JOC:
N
C
C
G
D
Pass
Pass
Pass
Pass
C
Leeend: P= Fathead minnow (Pimohales oromelas). H=No Flow (facilitv is active). s = Solit test between Certified Labs
Page 20 of 120

Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators
MAXIMUM DATA POINTS = 58
REQUIRED DATA ENTRY
Table 1. Proiect Information
Facility Name
WWTP/WTP Class
NPDES Permit
Outfall
Flow, Qw (MGD)
Receiving Stream
HUC Number
Stream Class
❑CHECK IF HQW OR ORW WQS
North WWTP
Grade II Biological WPCS
NCO032662
001
0.099
Mull Creek
030501011102
WS-IV
1.00
❑✓ Apply WS Hardness WQC
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
1Q10s (cfs)
1.60
2.10
5.00
L 0.84
_Effluent Hardness
------------------------
Upstream Hardness
_Combined Hardness Chronic
Combined Hardness Acute
32.46 mg/L (Avg)
33.84 mg/L (Avg)
_ _ _ _ _ _ _ 33.66 mg/L
I 33.63 mg/L _ _ _ _ _ _ _ _ _ -
Data Source(s)
❑CHECK TO APPLY MODEL
Par01
Par02
Par03
Par04
Par05
Par06111111
Par07
Par08
Par09
Par10
Par11
Par12
Par13
Par14
Par15
Par16
Par17
Parts
Par19
Par20
Par21
Par22
Par23
Par24
Table 2. Parameters of Concern
Name WQs Type Chronic ModIer Acute PQL 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
0.7386
FW
4.1967
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
150.1970
FW
1153.8237
ug/L
Chromium VI
Aquatic Life
NC
11
FW
16
pg/L
Chromium, Total
Aquatic Life
NC
N/A
FW
N/A
pg/L
Copper
Aquatic Life
NC
10.1604
FW
13.8466
ug/L
Cyanide
Aquatic Life
NC
5
FW
22
10
ug/L
Fluoride
Aquatic Life
NC
1,800
FW
ug/L
Lead
Aquatic Life
NC
4.1078
FW
105.3084
ug/L
Mercury
Aquatic Life
NC
12
FW
0.5
ng/L
Molybdenum
Human Health
NC
2000
HH
ug/L
Nickel
Aquatic Life
NC
47.8807
FW
430.7679
pg/L
Nickel
Water Supply
NC
25.0000
WS
N/A
pg/L
Selenium
Aquatic Life
NC
5
FW
56
ug/L
Silver
Aquatic Life
NC
0.06
FW
0.4936
ug/L
Zinc
Aquatic Life
NC
163.0462
FW
161.6027
ug/L
32662 9595 Final FW RPA, input
6/15/2020

32662 9595 Final FW RPA, input
6/15/2020

REASONABLE POTENTIAL ANALYSIS
H1
Effluent Hardness
Date
Data
BDL=1/2DL
Results
1
8/1/2016
29.3
29.3
Std Dev.
2
9/6/2016
25.8
25.8
Mean
3
10/3/2016
44.6
44.6
C.V.
4
11 /7/2016
30.6
30.6
n
5
1/10/2017
36.8
36.8
10th Per value
6
4/4/2017
30.4
30.4
Average Value
7
7/11/2017
29.5
29.5
Max. Value
8
10/2/2017
27
27
9
1 /23/2018
42
42
10
4/3/2018
36.7
36.7
11
7/10/2018
33.5
33.5
12
10/2/2018
26.8
26.8
13
1/8/2019
29.8
29.8
14
4/2/2019
32.7
32.7
15
7/9/2019
36.4
36.4
16
10/1/2019
34.9
34.9
17
1/7/2020
25
25
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 SPECIALH2
Values" then "COPY"
. Maximum data
points = 58
32.4588
0.1710
17
26.40 mg/L
32.46 mg/L
44.60 mg/L
Date Data
1
2
3
4 7/5/2016
5 8/1/2016
6 9/6/2016
7 11/7/2016
8 1/10/2017
9 4/4/2017
10 7/11/2017
11 10/2/2017
12 1 /23/2018
13 4/3/2018
14 7/10/2018
15 10/2/2018
16 1/8/2019
17 4/2/2019
18 7/9/2019
19 10/1/2019
20 1 /7/2020
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
BDL=1/2DL
Results
Std Dev.
Mean
C.V.
28.7
28.7
n
30.2
30.2
10th Per value
37.3
37.3
Average Value
34.1
34.1
Max. Value
33.5
33.5
26.5
26.5
37.7
37.7
31.3
31.3
35.7
35.7
34.9
34.9
33.3
33.3
31.6
31.6
34.8
34.8
37.6
37.6
35.3
35.3
39.3
39.3
33.5
33.5
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
33.8412
0.1002
17
29.60 mg/L
33.84 mg/L
39.30 mg/L
-3-
32662 9595 Final FW RPA, data
6/15/2020

REASONABLE POTENTIAL ANALYSIS
Pal
Par15
Use "PASTE SPECIAL
Use "PASTE SPECIAL
Copper
pp
Values" then "COPY"
MercuryValues"
then "COPY"
. Maximum data
. Maximum data
points = 58
points = 58
Date
Data
BDL=1/2DL
Results
Date
Data BDL=1/2DL
Results
1
4/4/2016
5
5
Std Dev.
12.8949
1
2.56 2.56
Std Dev.
0.8061
2
7/5/2016
38
38
Mean
13.8250
2
3.7 3.7
Mean
3.1300
3
10/3/2016
50
50
C.V.
0.9327
3
C.V. (default)
0.6000
4
1/10/2017
9.2
9.2
n
16
4
n
2
5
4/4/2017
5
5
5
6
7/11/2017
5.6
5.6
Mult Factor =
1.73
6
Mult Factor =
3.79
7
10/2/2017
5.9
5.9
Max. Value
50.00 ug/L
7
Max. Value
3.7 ng/L
8
1/23/2018
5.5
5.5
Max. Pred Cw
86.50 ug/L
8
Max. Pred Cw
14.0 ng/L
9
4/3/2018
17
17
9
10
7/10/2018
16.3
16.3
10
11
10/2/2018
9.2
9.2
11
12
1/8/2019
13.2
13.2
12
13
4/2/2019
11.1
11.1
13
14
7/9/2019
5.5
5.5
14
15
10/1/2019
19.6
19.6
15
16
1 /7/2020
5.1
5.1
16
17
17
18
18
19
19
20
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
32662 9595 Final FW RPA, data
-4- 6/15/2020

REASONABLE POTENTIAL ANALYSIS
Par21
Date Data
1
2
3
4 4/4/2016
5 7/5/2016
6 10/3/2016
7 1/10/2017
8 4/4/2017
9 7/11/2017
10 10/2/2017
11 1 /23/2018
12 4/3/2018
13 7/10/2018
14 10/2/2018
15 1/8/2019
16 4/2/2019
17 7/9/2019
18 10/1/2019
19 1 /7/2020
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
142
85
97
146
122
119
94.1
181
113
105
85.7
110
48.5
65.5
109
98.9
Zinc
BDL=1 /2DL
142
85
97
146
122
119
94.1
181
113
105
85.7
110
48.5
65.5
109
98.9
Use "PASTE SPECIAL
Values" then "COPY"
. Maximum data
points = 58
Results
Std Dev.
31.6779
Mean
107.6063
C.V.
0.2944
n
16
Mult Factor = 1.22
Max. Value 181.0 ug/L
Max. Pred Cw 220.8 ug/L
-5-
32662 9595 Final FW RPA, data
6/15/2020

North WWTP > Outfall 001
NCO032662 Freshwater RPA - 95% Probability/95% Confidence Using Metal Translators Qw = 0.099 MGD
MAXIMUM
Qw (MGD) =
0.0990
1Q10S (cfs) =
0.84
7Q10S (cfs) =
1.00
7Q10W (cfs) =
1.60
30Q2 (cfs) =
2.10
Avg. Stream Flow, QA (cfs) =
5.00
Receiving Stream: Mull Creek HUC 030501011102
DATA POINTS = 58
WWTP/WTP Class:
Grade II Biological WPCS
IWC% @ 1Q10S =
15.44617243
IWC% @ 7Q10S =
13.30356756
IWC% @ 7Q10W =
8.751318829
IWC% @ 30Q2 =
6.809558677
IW%C @ QA =
2.977616936
Stream Class:
WS-IV
COMBINED HARDNESS (mg/L)
Acute = 33.63 mg/L
Chronic = 33.66 mg/L
YOU HAVE DESIGNATED THIS RECEIVING
STREAM AS WATER SUPPLY
Effluent Hard: 0 value > 100 mg/L
Effluent Hard Avg = 32.46 mg/L
PARAMETER
NC STANDARDS OR EPA CRITERIA
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPEApplied
a
D
Chronic Acute
n # Det. Max Pred Cw Allowable Cw
Standard
Acute: 89.64
No RP , Predicted Max >_ 50% of Allowable Cw -
Copper
NC
10.1604 FW(7Q10s) 13.8466
ug/L
16 16
86.50
apply Quarterly Monitoring
Chronic: 76.37
No RP , Predicted Max >_ 50% of Allowable Cw
No value > Allowable Cw
apply Quarterly Monitoring
Acute: NO WQS
Mercury
NC
12 FW(7Q10s)
0.5
ng/L
2 2
14.0
Note: n 5 9
C.V. (default)
Chronic: 90.2
Limited data set
No value > Allowable Cw
Acute: 1,046.2 No RP, Predicted Max < 50% of Allowable Cw - No
Zinc
NC
163.0462 FW(7Q10s) 161.6027
ug/L
16 16
220.8
Monitoring required
Chronic: 1,225.6 No RP, Predicted Max < 50% of Allowable Cw - No
No value > Allowable Cw Monitoring required
32662 9595 Final FW RPA, rpa
Page 6 of 6 6/15/2020

Additional infor-
Advertising Affidavit
mation on
Observer News Enterprise
NPDES permits
and this notice
309 N Colle a Ave
g
may be found on
our website:
Newton, NC 28668
http://deq.nc.gov/
about/divisions/w
ater-
resources/water-
resources-per-
mits/wastewater-
N C D E N R
branch/npdes-
Wren Thedford
wastewater/pub-
lic-notices,by call-
1617 Mail Service Center
ing (919)h707-
Raleigh, NC 28699
e City
of Claremont,
Catawba County,
requested renew-
al of permit for its
North • .WWTP.
This discharge is
treated wastewa-
Date Description
Charge
ter into Mull
Creek, Catawba
06/23/20 Notice of Intent to issue
$76.00
River Basin. Cur-
Wastewater Permit NCO032662
rently, total resid-
ual chlorine, total
WWTP; City of Claremont
_
Public Notice
suspended sol-
ids,
ids, BOD, fecal
North Carolina
coliform, and am-
Environmental
monia are water
quality limited.
Management
Commission/NPD
ES Unit
Publish June 23,
North Carolina
1617 Mail Service
2020
Center
Catawba County
Raleigh, NC
27699-1617
Notice of Intent
Philip Rogers, BEING DULY SWORN SAYS: That he is the Composing Manager for the
OBSERVER NEWS ENTERPRISE, a newspaper published at Newton, North Carolina. And
that it is a newspaper of general circulation in Catawba County and surrounding counties.
The Notice of Intent to issue wastewater permit NCO032662 North WWTP; City of Claremont,
was published in said newspaper and not a supplement thereof and is a true copy of the
Notice as it was published in the regular and entire edition, beginning on June 23, 2020, and
that said OBSERVER NEWS ENTERPRISE was regularly distributed to the subscribers
during said period.
ESSfi°!f'f� .
Sworn to and subs cr�i re me this the 25th d of tine, 2020. Ln ;
i tyf
Composing Manager: E
NOTARY PUBLIC: �� >`

ROY COOPER
C�rra�r
MICHAEL S. REGAN
secrierery
UNDA CULPEPPER
vrreaot
City of Claremont
Attn: Jason A. Brown, City Manager
PO Box 446
Claremont, NC 28610-0446
Subject: Permit Renewal
Application No. NCO032662
North WWTP
Catawba County
Dear Applicant:
(NORTH CARobNIA
Envfrvnmentaal Qua♦'ity
January 30, 2020
The Water Quality Permitting Section acknowledges the January 30, 2020 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. 150B-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://deq. 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
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
No ft CaroarteDepartment ofEnViror.rnerte!Quely I DhAsaaofWater Resouroes
..�
�� Mooiesvzt: a Regeonai Office 160 East Pertter Avenue, Suite 303 1 Mboresvl)e; North CaroVna 2S115
(Z
eoara+rca r:a- \ Thy

1000,44
CITY OF CLAREMONT
Shawn R. Brown
Mayor
NCDENR/ DWQ/ Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
January 29, 2020
RE: NPDES Permit Application (NPDES#NC0032662)
City of Claremont North WWTP
Claremont, North Carolina
Jason Brown
City Manager
RECFj\jF,D
JAN j 0 2020
NCDEQIDWRINPDES
Enclosed please find for your review and processing the application package
to renew the City of Claremont's North Wastewater Treatment Plant NPDES
permit. The application package includes the following:
• An EPA Form 2A
• An authority delegation Letter
• A letter describing the sludge management practices for the
North WWTP.
If any additional information is needed, please feel free to contact me at (828)
466-7255.
Warmest Regards,
Rvo�. I� •�
Jaso A. Brown
nager
Cc: Mr. Shawn Pennell, City of Hickory
Mr. Tom Winkler, City of Claremont
828-466-7255 City Hall • 828-466-7185 Fax
3288 East Main Street • Post Office Box 446 • Claremont, NC 28610

CITY OF CLAREMONT
Shawn R. Brown
Mayor
NCDENR/ DWQ/ Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
January 29, 2020
RE: NPDES Permit Application (NPDES#NC0032662)
City of Claremont North WWTP
Claremont, North Carolina
Jason Brown
City Manager
RECEIVED
JAN 3 0 2020
NCDEQ�DWR/NPDES
Please accept this as a formal delegation of authority to the City of Hickory, as
an Authorized Representative for the preparation of the City of Claremont's North
Wastewater Treatment Plant NPDES permit renewal application package. The
Authorized Representative has assisted in the preparation of EPA from 2A and a
letter describing the sludge management practices for the North WWTP.
If any additional information is needed, please feel free to contact me at (828)
466-7255.
Warmest Regards,
vt":
aso A. Brown
t Ma ager
Cc: Mr. Shawn Pennell, City of Hickory
Mr. Tom Winkler, City of Claremont
828-466-7255 City Hall • 828-466-7185 Fax
3288 East Main Street • Post Office Box 446 • Claremont, NC 28610

111111 **
CITY OF CLAREMONT
Shawn R. Brown
Mayor
NCDENR/ DWQ/ Point Source Branch
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
January 29, 2020
RE: NPDES Permit Application (NPDES#NC0032662)
City of Claremont North WWTP
Claremont, North Carolina
Jason Brown
City Manager
RECEIVE[
JAN 3 0 2020
NCDEQ/DWR/NPDES
The City of Claremont's North Wastewater Treatment Plant processes all of its
sludge by composting. Sludge is removed from the aeration basins and placed in
a digester to reduce the amount of volatile solids and to allow the sludge to
thicken.
Supernate is decanted and returned to the head of the plant. The thickened solids
are taken to the Hickory Regional Compost Facility in Newton, NC for further
processing into compost material. During the composting process, the sludge is
stabilized sufficiently to meet all vector attraction and pathogen reduction
requirements. Once dry, the cured compost is distributed to various entities to
be used as a soil amendment.
If any additional information is needed, please feel free to contact me at (828)
466-7255.
Warmest Regards,
Jaso A. Brown
Ci r7,4,4aqager
Cc: Mr. Shawn Pennell, City of Hickory
Mr. Tom Winkler, City of Claremont
828-466-7255 Cite Hall • 828-466-7185 Fax
3288 East Main Street • Post Office Box 446 • Claremont, NC 28610

North WWTP Permit
Renewal NCO032662
2020 Renewal
1. NPDES Form 2A
2. Part A
3. Part B
4. Part C
5. Part E
6. Attachments for Part E
7. Attachments for B

FACILITY NAME AND PERMIT NUMBER:
North WWTP, NCO032662
PERMIT ACTION REQUESTED: RIVER BASIN:
Renewal Catawba River Basin
FORM
2A NPDES FORM 2A APPLICATION OVERVIEW
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application Information for Applicants with a Design Flow z 0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through B.6.
C. Certification. All applicants must complete Part C (Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D (Expanded Effluent Testing Data):
Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program (or has one in place), or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users (SIUs) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations (CFR) 403.6 and
40 CFR Chapter I, Subchapter N (see instructions); and
2. Any other industrial user that:
a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works (with certain
exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant; or
C. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G (Combined Sewer
Systems).
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 1 of 22

North WWTP Permit
Renewal NCO032662
2020 Renewal
Part A

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet.
A.1. Facility Information.
Facility Name City of Claremont North WWTP
Mailing Address PO Box 446
Claremont NC 28610
Contact Person Caleb Bynum
Title Utilities Engineer
Telephone Number [phone]
Facility Address 3076 Centennial Boulevard
(not P.O. Box) Claremont NC 28610
A.2. Applicant Information. If the applicant is different from the above, provide the following:
Applicant Name City of Claremont
Mailing Address PO Box 446
Claremont, NC 28610
Contact Person Jason Brown
Title City Manager
Telephone Number [phone]
Is the applicant the owner or operator (or both) of the treatment works?
® owner ® operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
® facility ❑ applicant
A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state -issued permits).
NPDES NCO032662 PSD
UIC Other
RCRA Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each
entity and, if known, provide information on the type of collection system (combined vs. separate) and its ownership (municipal, private, etc.).
Name Population Served Type of Collection System Ownership
Claremont Collection System 300 Separate Municipal
Total population served
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 2 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
North WWTP, NCO032662 Renewal Catawba River Basin
A.5. Indian Country.
a. Is the treatment works located in Indian Country?
❑ Yes ® No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows
through) Indian Country?
❑ Yes ® No
A.6. Flow. Indicate the design flow rate of the treatment plant (i.e., the wastewater flow rate that the plant was built to handle). Also provide the
average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 121h month of "this year" occurring no more than three months prior to this application submittal.
a. Design flow rate 0.100 mgd
Two Years Ago Last Year This Year
b. Annual average daily flow rate 0.062 MGD 0.076 MGD 0.073 MGD
C. Maximum daily flow rate 0.231 MGD 0.226 MGD 0.199 MGD
A.7. Collection System. Indicate the type(s) of collection system(s) used by the treatment plant. Check all that apply. Also estimate the percent
contribution (by miles) of each.
® Separate sanitary sewer 100 %
❑ Combined storm and sanitary sewer %
A.8. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? ® Yes ❑ No
If yes, list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent 001
ii. Discharges of untreated or partially treated effluent
iii. Combined sewer overflow points
iv. Constructed emergency overflows (prior to the headworks) 0
V. Other N/A 0
b. Does the treatment works discharge effluent to basins, ponds, or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? ❑ Yes ® No
If yes, provide the following for each surface impoundment:
Location:
Annual average daily volume discharge to surface impoundment(s)
Is discharge ❑ continuous or ❑ intermittent?
C. Does the treatment works land -apply treated wastewater?
If yes, provide the following for each land application site:
d.
Location:
Number of acres:
Annual average daily volume applied to site:
Is land application ❑ continuous or ❑ intermittent?
Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
❑ Yes
mgd
mgd
® No
® Yes ❑ No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 3 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g., tank truck, pipe).
Biosolids are transported to a Class "A" composting facility by tanker.
If transport is by a party other than the applicant, provide:
Transporter Name City of Hickory
Mailing Address PO Box 398
Hickory, NC 28603
Contact Person Caleb Bynum
Title Utilities Engineer
Telephone Number [phone]
For each treatment works that receives this discharge, provide the following:
Name City of Hickory Regional Composting Facility
Mailing Address 3200 20'h Ave. SE
Newton, NC 28658
Contact Person Paul Spencer
Title ORC
Telephone Number [phone]
If known, provide the NPDES permit number of the treatment works that receives this discharge WQ0004563
Provide the average daily flow rate from the treatment works into the receiving facility. 0.000288 mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8. through A.8.d above (e.g., underground percolation, well injection): ❑ Yes ® No
If yes, provide the following for each disposal method:
Description of method (including location and size of site(s) if applicable):
Annual daily volume disposed by this method:
Is disposal through this method ❑ continuous or ❑ intermittent?
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 4 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
North WWTP, NCO032662 Renewal Catawba River Basin
WASTEWATER DISCHARGES:
If you answered "Yes" to question A.8.a, complete questions A.9 through A.12 once for each outfall (including bypass points) through
which effluent is discharged. Do not include information on combined sewer overflows in this section. If you answered "No" to question
A.8.a, go to Part B, "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a.
Outfall number 001
b.
Location Claremont
28610
(City or town, if applicable)
(Zip Code)
Catawba
North Carolina
(County)
(State)
35° 43' 21" N
81109' 18" W
(Latitude)
(Longitude)
c.
Distance from shore (if applicable) 0
ft.
d.
Depth below surface (if applicable) N/A
ft.
e.
Average daily flow rate 0.073
mgd
f.
Does this outfall have either an intermittent or a periodic discharge? ❑ Yes
® No (go to A.9.g.)
If yes, provide the following information:
Number of times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge:
mgd
Months in which discharge occurs:
g.
Is outfall equipped with a diffuser? ❑ Yes
® No
A.10. Description of Receiving Waters.
a. Name of receiving water Mull Creek
b. Name of watershed (if known)
United States Soil Conservation Service 14-digit watershed code (if known):
C. Name of State Management/River Basin (if known): Catawba River Basin
United States Geological Survey 8-digit hydrologic cataloging unit code (if known):
d. Critical low flow of receiving stream (if applicable)
acute cfs chronic cfs
e. Total hardness of receiving stream at critical low flow (if applicable): mg/I of CaCO3
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 5 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
® Primary ® Secondary
❑ Advanced ❑ Other. Describe:
b. Indicate the following removal rates (as applicable):
Design BOD5 removal or Design CBOD5 removal 90 %
Design SS removal 90 %
Design P removal N/A %
Design N removal N/A %
Other %
C. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe:
Chlorine Gas
If disinfection is by chlorination is dechlorination used for this outfall? ® Yes ❑ No
Does the treatment plant have post aeration? ® Yes ❑ No
A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is
discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a
minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart.
Outfall number: 001
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Value
Units
Value
Units
Number of Samples
pH (Minimum)
6.0
S.U.
pH (Maximum)
7.4
S.U.
Flow Rate
0.231
GPD
0.072
GPD
1430
Temperature (Winter)
19
°C
13
°C
80
Temperature (Summer)
26
°C
21
°C
124
* For pH please report a minimum and a maximum daily value
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
POLLUTANT
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
BODS
69
m /L
7.2
m /L
208
5210 B-2011
2.Om /L
DEMAND (Report one)
CBODS
FECAL COLIFORM
>6000
#/100m1
7
#/100m1
214
9222 D-2006
1/100mi
TOTAL SUSPENDED SOLIDS (TSS)
220
m /L
9.0
m /L
209
2540 D-2011
2.5m /L
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 6 of 22

North WWTP Permit
Renewal NCO032662
2020 Renewal
Part B

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
BASIC APPLICATION INFORMATION
PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR
EQUAL TO 0.1 MGD (100,000 gallons per day).
All applicants with a design flow rate z 0.1 mgd must answer questions B.1 through B.6. All others go to Part C (Certification).
B.1. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
1250 g pd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This
map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire
area.)
a. The area surrounding the treatment plant, including all unit processes.
b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which
treated wastewater is discharged from the treatment plant. Include outfalls from bypass piping, if applicable.
c. Each well where wastewater from the treatment plant is injected underground.
d. Wells, springs, other surface water bodies, and drinking water wells that are: 1) within'% mile of the property boundaries of the treatment
works, and 2) listed in public record or otherwise known to the applicant.
e. Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed.
f. If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rail,
or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored, and/or disposed.
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant, including all bypass piping and all
backup power sources or redunancy in the system. Also provide a water balance showing all treatment units, including disinfection (e.g.,
chlorination and dechlorination). The water balance must show daily average flow rates at influent and discharge points and approximate daily flow
rates between treatment units. Include a brief narrative description of the diagram.
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor? ® Yes ❑ No
If yes, list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional
pages if necessary).
Name: City of Hickory
Mailing Address: PO Box 398
Hickory, NC 28603
Telephone Number: [phone]
Responsibilities of Contractor: Plant operation and maintenance
B.5. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B.5
for each. (If none, go to question B.6.)
a. List the outfall number (assigned in question A.9) for each outfall that is covered by this implementation schedule.
b. Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies.
❑ Yes ❑ No
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 7 of 22

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
C. If the answer to B.5.b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable).
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as
applicable. For improvements planned independently of local, State, or Federal agencies, indicate planned or actual completion dates, as
applicable. Indicate dates as accurately as possible.
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
Begin Construction
End Construction !
Begin Discharge
Attain Operational Level
e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No
Describe briefly:
B.6. EFFLUENT TESTING DATA (GREATER THAN 0.1 MGD ONLY).
Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated
effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information
on combine sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate
QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be
based on at least three pollutant scans and must be no more than four and on -half years old.
Outfall Number: 001
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
POLLUTANT
METHOD
ML/MDL
Conc.
Units
Conc.
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
10.7
mg/L
0.92
mg/L
205
4500NH3 D-2011
0.10mg/L
CHLORINE (TOTAL
<20
ug/L
<20
ug/L
409
4500CI G-2011
20ug/L
RESIDUAL, TRC)
DISSOLVED OXYGEN
11.5
mg/L
8.2
mg/L
204
45000 G-2011
1mg/L
TOTAL KJELDAHL
NITROGEN (TKN)
7.3
mg/L
2.2
mg/L
16
351.2
0.5mg/L
NITRATE PLUS NITRITE
14.1
mg/L
7.2
mg/L
16
353.2
0.3mg/L
NITROGEN
OIL and GREASE
PHOSPHORUS (Total)
5.0
mg/L
1.9
mg/L
16
365.3
0.3mg/L
TOTAL DISSOLVED SOLIDS
(TDS)
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 R 7550-22. Page 8 of 22

North WWTP Permit
Renewal NCO032662
2020 Renewal
Part C

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
® Basic Application Information packet Supplemental Application Information packet:
❑ Part D (Expanded Effluent Testing Data)
® Part E (Toxicity Testing: Biomonitoring Data)
❑ Part F (Industrial User Discharges and RCRA/CERCLA Wastes)
❑ Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE 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 is, to the best of my knowledge and belief, true,
accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations.
Name and official tit Jason Brown, City Manager
Signature
Telephone number 828 6-725555
Date signed I ^ 2O
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 9 of 22

North WWTP Permit
Renewal NCO032662
2020 Renewal
Part E

FACILITY NAME AND PERMIT NUMBER:
PERMIT ACTION REQUESTED:
RIVER BASIN:
North WWTP, NCO032662
Renewal
Catawba River Basin
SUPPLEMENTAL APPLICATION INFORMATION
PART E. TOXICITY TESTING DATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the
facility's discharge points: 1) POTWs with a design flow rate greater than or equal to 1.0 mgd; 2) POTWs with a pretreatment program (or those that are
required to have one under 40 CFR Part 403); or 3) POTWs required by the permitting authority to submit data for these parameters.
• At a minimum, these results must include quarterly testing for a 12-month period within the past 1 year using multiple species (minimum of two
species), or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results
show no appreciable toxicity, and testing for acute and/or chronic toxicity, depending on the range of receiving water dilution. Do not include
information on combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC
requirements for standard methods for analytes not addressed by 40 CFR Part 136.
• In addition, submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test
conducted during the past four and one-half years revealed toxicity, provide any information on the cause of the toxicity or any results of a
toxicity reduction evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E, you need not submit it again. Rather, provide the information
requested in question EA for previously submitted information. If EPA methods were not used, report the reasons for using alternate methods.
If test summaries are available that contain all of the information requested below, they may be submitted in place of Part E.
If no biomonitoring data is required, do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to
complete.
E.I. Required Tests.
Indicate the number of whole effluent toxicity tests conducted in the past four and one-half years.
® chronic ❑ acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one
column per test (where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number: Test number: Test number:
a. Test information.
Test Species & test method number
Age at initiation of test
Outfall number
Dates sample collected
Date test started
Duration
b. Give toxicity test methods followed.
Manual title
Edition number and year of publication
Page number(s)
c. Give the sample collection method(s) used. For multiple grab samples, indicate the number of grab samples used.
24-Hour composite
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 15 of 22

FACILITY NAME AND PERMIT NUMBER:
North WWTP, NCO032662
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba River Basin
Test number: Test number: Test number:
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected:
f. For each test, include whether the test was intended to assess chronic toxicity, acute toxicity, or both
Chronic toxicity
Acute toxicity
g. Provide the type of test performed.
Static
Static -renewal
Flow -through
h. Source of dilution water. If laboratory water, specify type; if receiving water, specify source.
Laboratory water
Receiving water
i. Type of dilution water. If salt water, specify "natural' or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH
Salinity
Temperature
Ammonia
Dissolved oxygen
I. Test Results.
Acute:
Percent survival in 100%
effluent
°
%
LC5o
95% C.I.
%
%
%
Control percent survival
%
%
%
Other (describe)
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 16 of 22

FACILITY NAME AND PERMIT NUMBER:
North WWTP, NCO032662
PERMIT ACTION REQUESTED:
Renewal
RIVER BASIN:
Catawba River Basin
Chronic:
NOEC
%
%
%
C25
%
%
%
Control percent survival
%
%
%
Other (describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available?
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run (MM/DD/YYYY)?
Other (describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
❑ Yes ® No If yes, describe:
EA. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information, or information regarding the
cause of toxicity, within the past four and one-half years, provide the dates the information was submitted to the permitting authority and a summary
of the results.
Date submitted: / / (MM/DD/YYYY)
Summary of results: (see instructions)
During the past 4'/2 years the North WWTP has submitted 22 chronic toxicity tests on a quarterly basis. Those summaries
are included in the attachment.
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A (Rev. 1-99). Replaces EPA forms 7550-6 & 7550-22. Page 17 of 22

North WWTP Permit
Renewal NCO032662
2020 Renewal
Attachment for Part E

ADDITIONAL INFORMATION
City of Claremont - North WWTP
NCO032662
Outfall 001
Part E - Toxicity Testing Data
Pass/Fail 7 Day Chronic - Ceriodaphnia dubia
Results
Monitoring Period
CollectionDate
Test Date
EPA Lab ID No.
NC Cert. No.
Test Method Used
IWC%
Group
%Mortality
Avg. Reprod.
%Reduction
Pass/Fail
EPA/600/4-91/002
1/1/15 - 3/31/15
1/5/2015
1/7/2015
NC000030
16
Method 1002 NC Modification
13%
Control 0.00% 20.09
-6.60%
P
February 1988
Test 0.00% 21.42
EPA/600/4-91/002
4/1/15 - 6/30/15
4/20/2015
4/22/2015
NC000030
16
Method 1002 NC Modification
13%
Control 0.00% 27.33
-2.74%
P
February 1988
Test 0.00% 28.08
EPA/600/4-91/002
7/1/15 - 9/30/15
7/13/2015
7/15/2015
NC000030
16
Method 1002 NC Modification
13%
Control 0.00% 25.58
-0.98%
P
February 1988
Test 0.00% 25.83
EPA/600/4-91/002
10/1/15 - 12/31/15
10/19/2015
10/21/2015
NC000030
16
Method 1002 NC Modification
13%
Control 0.00% 28.83
11.27%
P
February 1988
Test 8.33% 25.58
EPA/600/4-91/002
1/1/16 - 3/31/16
1/11/2016
1/13/2016
NC000030
16
Method 1002 NC Modification
13%
Control 0.00% 29.25
0.85%
P
February 1988
Test 0.00% 29.00
EPA-821-R-02-013
Control 0% 19.0
4/1/16 - 6/30/16
4/11/2016
4/13/2016
NCO22
686
Method 1002, Fourth Edition
13%
-4.4%
P
October 2002
Test 0% 19.8
EPA-821-R-02-013
Control 0% 22.8
7/1/16 - 9/30/16
7/18/2016
7/20/2016
NCO22
686
Method 1002, Fourth Edition
13%
2.2%
P
October 2002
Test 0% 22.3
EPA-821-R-02-013
Control 0% 18.4
10/1/16 - 12/31/16
10/3/2016
10/5/2016
NCO22
686
Method 1002, Fourth Edition
13%
8 1%
P
October 2002
Test 0% 16.9

ADDITIONAL INFORMATION
City of Claremont - North WWTP
NCO032662
Outfall 001
Part E - Toxicity Testing Data
Pass/Fail 7 Day Chronic - Ceriodaphnia dubia
Monitoring Period
CollectionDate
Test Date
EPA Lab ID No.
NC Cert. No.
Test Method Used
IWC%
Results
Group
% Mortality
Avg. Reprod.
% Reduction
Pass/Fail
EPA-821-R-02-013
1/1/17 - 3/31/17
1/9/2017
1/11/2017
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 20.5
3.3%
P
October 2002
Test 0% 19.8
EPA-821-R-02-013
4/1/17 - 6/30/17
4/3/2017
4/5/2017
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 21.9
3.0%
P
October 2002
Test 0% 21.3
EPA-821-R-02-013
7/1/17 - 9l30/17
7/10/2017
7/12/2017
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 21.5
-1.9%
P
October 2002
Test 0% 21.9
10/1/17 - 12/31/17
10/15/2017
10/17/2017
TN
TN0003
EPA/600/4-89/001
13%
Control 0% 24.0
0 0%
P
Method 1002
Test 0% 25.8
EPA-821-R-02-013
1/1/18 - 3/31/18
1/22/2018
1/24/2018
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 21.8
0.8%
P
October 2002
Test 0% 21.7
EPA-821-R-02-013
4/1/18 - 6/30/18
4/2/2018
4/4/2018
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 21.1
2.8%
P
October 2002
Test 0% 20.5
EPA-821-R-02-013
7/1/18 - 9/30/18
7/9/2018
7/11/2018
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 23.9
8.4%
P
October 2002
Test 0% 21.9
EPA-821-R-02-013
10/1/18 - 12/31/18
10/1/2018
10/3/2018
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 21.8
3.1%
P
October 2002
Test 0% 21.1

ADDITIONAL INFORMATION
City of Claremont - North WWTP
NCO032662
Outfall 001
Part E - Toxicity Testing Data
Pass/Fail 7 Day Chronic - Ceriodaphnia dubia
Monitoring Period
CollectionDate
Test Date
EPA Lab ID No.
NC Cert. No.
Test Method Used
IWC%
Results
Group
%Mortality
Avg. Reprod.
%Reduction
Pass/Fail
EPA-821-R-02-013
1/1/19 - 3/31/19
1/7/2019
1/9/2019
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 20.3
3.3%
P
October 2002
Test 0% 19.6
EPA-821-R-02-013
4/1/19 - 6/30/19
4/1/2019
4/3/2019
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 19.5
-13.7%
P
October 2002
Test 0% 22.2
EPA-821-R-02-013
7/1/19 - 9/30/19
7/8/2019
7/10/2019
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 22.0
88.3%
F
October 2002
Test 58% 2.6
EPA-821-R-02-013
10/1/19 - 12/31/19
9/30/2019
10/2/2019
NCO22
686
Method 1002, Fourth Edition
13%
Control 0% 21.3
0.8%
P
October 2002
Test 0% 21.2
EPA-821-R-02-013
NCO22
686
Method 1002, Fourth Edition
Control
October 2002
Test
EPA-821-R-02-013
NCO22
686
Method 1002, Fourth Edition
Control
October 2002
Test
EPA-821-R-02-013
NCO22
686
Method 1002, Fourth Edition
Control
October 2002
Test
EPA-821-R-02-013
NCO22
686
Method 1002, Fourth Edition
Control
October 2002
Test

ADDITIONAL INFORMATION
City of Claremont - North WWTP
NCO032662
Outfall 001
Part E - Toxicity Testing Data
Chronic Whole Testing - Ceriodaphnia Dubia
CollectionDate
Test Start Date
EPA Lab ID
No.
NC Cert. No.
Test Method Used
RESULTS
Group
7-Day Survival
% Reduction
Control
Reproduction CV
NOEC
LOEC
8/5/2019
8/7/2019
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002
Control
19.7
6%
52.0%
>52.00%
3.3%
20.5
-4.1%
6.5%
19.4
1.5%
13%
18.8
4.6%
26%
19.9
-1.0%
52%
19.9
-1.0%
9/2/2019
9/4/2019
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002
Control
20.9
9%
52.0%
>52.00%
3.3%
20.4
2.4%
6.5%
17.8
14.8%
13%
19.1
8.6%
26%
16.3
22.0%
52%
17.1
18.2%
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002
NCO22
686
EPA-821-R-02-013
Method 1002
Fourth Edition
October 2002

North WWTP Permit
Renewal NCO032662
2020 Renewal
Attachment for Section B

CITY OF CLAREMONT
NORTH WWTP, NCO032662
PERMIT RENEWEL
B. Plant Overview
__k

CITY OF CLAREMONT
NORTH WWTP, NC0032662
PERMIT RENEWEL
Aeration
Settling
Settling
B.2 Process Flow Diagram
Basin
Tank 1
Tank 2
Splitter Box
Influent
0.100 MGD
(Design Flow)
0.04 MGD
(40%)
Digester
0.04 MGD
0.06 MGD
(60%)
To Compost
Facility Via
Truck
Effluent
0.06 MGD
Parshall Chlorine
Dehlorination 0.100 MGD to Mull Creek
Flume Contact
With Post
Chamber
Aeration
Aeration
To Compost
Basin
Digester Facility Via
Truck
Scum
Collector
Rectangular
Clarifier

-! .�.a1AR•' • - � � iS •. 1 � _ � �. +S a �..: k .:''� � .ra' F s ' =`-ta ? 'I, .
iN
s
CITY OF CLAREMONT
NORTH WWTP, • •PERMIT RENEWEL
L r.
e. 4
B. 2. Plant Influent
• Effluent Pipingir•�� L " •
,.
x �- -tee- ��:� � y_ � ,•• ,
i
a f :.. a k�. ,-•� ��i • �� •K 3:� �r'��•. '� r� :'a:. w• Wit" • --
��`'". -��{, "v S.L � . � _ -'�v���i.6�+ q�� � t.e�a"Y•.�- ..Ya i v*a l+�,S;r �r .,,C.y - - -�
F
\ ,f
a r
-
-7N qw- �
rat {t1{LdeIL
tit
77,
NEW
._ �• v. L ,
'
°o fir.. �, A r�;� F,;,.�• � G��? ER
a•
:

�`' � f' � . a. � ••srs.#- daC- '� �,: s'�' � s _ s �, � �a,I.t'y�t \r b� 1e n �•d'i � r ; ,�:� .
�Sll
j
yy
CITY OF CLAREMONT
PERMIT RENEWEL
B.2. Topographic Map
NOR
Ot
,a�
. �4a
. k .� y''�,$ , ��_,•R "-lbw► � ^�.. �- �, �,��/+�. � _ - •
c
!►
VA mow
if ��

LO. 4 ,
�� � y: '' < . �-..ir.` .•�- 1' .,�' � -•.'fit `�: �:
T
?jAhy�r� ,1 �!•�Ito# North W11Vf P
•
- ' ``Y „c x �� , �.�r _ t ,; .. �� j� Jam,. >,� �� .� ' • p.. ,
X T i *fir,
I AA miem 7
-�� •.,%�' �;� .. �' F� � � ., �� -,- .... �1: �� sue¢ �• � �
00
'L7ti '♦ . - _'� +�.V . 1 mil` '�, •a� c n
•- ♦ R1.•..Yt-s.5� f._•_�;,i'' 1� P:T.. '� f-F �/�� _ i _ - a ... �Iiys.
Aw
I�: � � `�� 4�'. 4'•
Hickory Re`giil�
ornpost F-6 ility�, ' " ��'° : '
� `• �.� _j tea:?
•,L
CITY OF CLAREMONT
4 s• �, NORTH1 1
41,
PERMIT RENEWEL
yJ •S gB.2. Proximityto Compost Plant Map
,_ 21'•°:KiY� ,�.,:+ �.,".�" ? � _ cp4,. • �'�-, ppsi Y� - q +�'
y. _ . V` 1 W"^+.w+ir.) ✓- _ .aY.� -.1�1 .. - r ';i �x *t i�" . ... . . - .®..�V ._ •,..o __..

From:
DelDuco, Emilv
To:
Jason Brown
Subject:
RE: [External] RE: Electronic Delivery of Permit
Date:
Friday, August 21, 2020 3:12:00 PM
Attachments:
imaae003.ona
NCO032662 Final Permit 08-2020.12df
Please see the attached final permit.
Best,
Emily
From: Jason Brown[mailto:[e-mail]]
Sent: Friday, August 21, 2020 2:57 PM
To: DelDuco, Emily <[e-mail]>
Subject: [External] RE: Electronic Delivery of Permit
M66�report.sipam(@nc.gov
rnal email. Do not click links or open attachments unless you verify. Send all suspicious email as an
Electronic transmittal would be fine.
Warmest Regards,
Jason A. Brown, CBEO
City Manager
City of Claremont
3288 East Main Street (PO Box 446)
Claremont, NC 28610
Office - 828.466.7255
www.cityofclaremont.org
III
MAKE NC
COUNT
cENsus2osa
From: DelDuco, Emily <Emily.DelDuco(@ncdenr.gov>
Sent: Friday, August 21, 2020 1:42 PM
To: Jason Brown <ibrown Pcityofclaremont.org>
Subject: Electronic Delivery of Permit
Greetings,
This is in regards to the NPDES permit for City of Claremont's North WWTP /NC0032662.
In order to provide more convenience, control, and security to our permittees and assist them in
processing their transactions, The Division of Water Resources is currently transitioning towards
electronic correspondence. This will hopefully provide more efficient service to our permittees and

other partners and will allow us to more effectively process and track documents. We are writing to
ask you for your approval of the transmittal of documents related to your permitting and related
activities with the Division in an electronic format. Documents will be emailed to the appropriate
contact person(s) in your organization in a PDF format.
Please respond to me through email with verification that transmittal of your documents in an
electronic manner is acceptable to you. If you have any questions, please feel free to contact
me.
Thank you,
Emily DelDuco
Division of Water Resources
Department of Environmental Quality
919-707-9125
[e-mail]
Nothing Compares
Email correspondence to and from this address is subject to the
North Carolina Public Records Law and may be disclosed to third parties.