NC0006033_Speculative Limits_20101105

r
A......_
NC NR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Coleen H. Sullins
Governor Director
November 5, 2010
Mr. Thomas Shytle
Public Utilities Director
Town of Cramerton
155 North Main Street
Cramerton, North Carolina 28032
Dee Freeman
Secretary
Subject: Speculative Effluent Limits
Cramerton g e o;1TWTP
Permit N 1'�@� F.
VcM603
Gaston Co
Dear Mr. Shytle:
This letter is in response to the request for speculative effluent limits for expansion flows for the Cramerton
WWTP of 8.0 MGD and 12.0 MGD. This facility is currently permitted at 4 MGD. This expansion is based on
the projected merger of the facilities from the Town of Cramerton and the City of Gastonia. Mr. Don Garbrick
of Pease Associates submitted this request to our office on your behalf. Regionalization of wastewater
treatment systems is strongly encouraged by the Division.
Receiving Stream. South Fork Catawba River has a stream classification of WS-V. Waters with this
classification have a best usage for waters protected as water supplies which are generally upstream and
draining to WS-IV waters; or waters previously used for drinking water supply purposes: or waters used
by industry to supply their employees but not municipalities or counties. There are segments of the South
Fork Catawba River that are listed as impaired on the final 2010 North Carolina 303(d) Impaired Streams
List for low pH and turbidity.
Speculative Limits. The speculative limits were developed based on Division staff recommendation and
consideration of the Lake Wylie total maximum daily load (TMDL) which sets allocations for total nitrogen
(TN) and total phosphorus (TP). Based on available information, speculative effluent limits for the
expanded discharges of 8.0 and 12.0 MGD to South Fork Catawba River are presented in Tables 1 and 2. A
complete evaluation of these limits and monitoring requirements for metals and other toxicants will be
addressed upon receipt of a formal NPDES permit application.
B0D/NH3 Limits. These speculative limits are based on freezing current permitted BOD ultimate loading
(i.e., facility will not be allowed to discharge oxygen -consuming waste above what is currently permitted).
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Sartsbury St. Raleigh, North Carolina 27604 One
Phone: [phone] FAX: [phone] Customer Service:1-8n-623-6748 NorthCarolina
Internet: www.rtcwaterauar�r.om NWmrally

The resultant limits for BOD5 and NH3 at the expanded flows are considered technologically -feasible.
Nutrient Limits. The Lake Wylie TMDL addresses nutrient loading to that waterbody and has been in effect
since 1996. For the speculated expansion flows, the existing TN loading limit of 103,282 lbs/yr will be
maintained but will be allocated for the individual summer and winter seasons. In particular at the requested
12 MGD wasteflow, Cramerton must demonstrate the wastewater treatment plant will be able to meet the
equivalent concentration limits of 2 mg/l summer and 4 mg/l winter through technology, reuse, or other
treatment scenarios.
TABLE 1. Speculative Limits for Cramerton-Eagle Road WWTP, Expanded flow of 8.0 MGD
Note: At 8.0 MGD, TN load limits are equal to 3 mg/l (summer) and 6 mg/l (winter).
TABLE 2. Speculative Limits for Cramerton-Eagle Road WWTP, Expanded flow of 12.0 MGD
Note: At 12.0 MGD, TN load limits are equal to 2 mg/1(summer) and 4 mg/l (winter).

En ing eerie& Altematives Analysis (EAA). Please note that the Division cannot guarantee that an NPDES
permit for discharge of expansion up to 8.0 MGD and 12.0 MGD will be issued with these speculative
limits. Final decisions can only be made after the Division receives and evaluates a formal permit
application for the expanded discharge. In accordance with the North Carolina General Statutes, the
practicable wastewater treatment and disposal alternative with the least adverse impact on the
environment is required to be implemented. Therefore, as a component of all NPDES permit applications
for new or expanding flow, a detailed engineering alternatives analysis (EAA) must be prepared. The EAA
must justify requested flows, and provide an analysis of potential wastewater treatment alternatives.
Results of this EAA will need to be presented in the SEPA EA (see below).
State Environmental Policy Act (SEPA) EA/EIS Requirements. A SEPA EA/EIS document must be
prepared for all projects that: 1) need a permit; 2) use public money or affect public lands; and 3) might
have a potential to significantly impact the environment. For existing discharges, significant impact is
defined as an expansion of > 500,000 gpd additional flow. Since Cramerton's facility is proposing a
discharge of >500,000 gpd flow, the facility must prepare a SEPA document that evaluates the potential for
impacting the quality of the environment. The NPDES Unit will not accept an NPDES permit application
for the expanded discharge until the Division has approved the SEPA document and sent.a Finding of No
Significant Impact (FONSI) to the State Clearinghouse for review and comment. . A SEPA Environmental
Assessment (EA) should contain a clear justification for the proposed project. If the SEPA EA demonstrates
that the project may result in a significant adverse effect on the quality of the environment, you must then
prepare a SEPA EIS (Environmental Impact Statement). Since your expanded discharge is subject to SEPA,
the EAA requirements discussed above will need to be folded into the SEPA document. The SEPA process
will be delayed if all EAA requirements are not adequately addressed. If you have any questions
regarding SEPA EA/EIS requirements, please contact Hannah Stallings with the DWQ Planning Branch at
[phone].
Should you have any questions about these speculative limits or NPDES permitting requirements, please
feel free to contact Jackie Nowell at [phone] or Tom Belnick at [phone].
Respectfully,
om Belnick
Supervisor, Complex Permitting Unit
cc: Donald T. Garbrick, P.E./Pease Associates 2925 East Independence Blvd. P.O. Box 18725 Charlotte NC
28218
City of Gastonia, P.O. Box 1748 Gastonia, NC 28053-1748 Attn: Matt Bernhardt
US Fish and Wildlife Service, Ecological Services, PO Box 33726, Raleigh, NC 27636-3726 Attn: Sara
Myers
NC WRC, Inland. Fisheries,1721 Mail Service Center, Raleigh, NC, 27699-1721 Attn: Fred Harris
Mooresville Regional Office/Surface Water Protection
Pam Behm& Kathy Stecker /Modeling TMDL Unit
Hannah Stallings/Planning Section
Central Files
NPDES Permit File/NC0006033

13 /J�� l� lrnf.
y� AA in Mad
�1A�I¢ �1 ��/'� � _ F ,eP„saca 1JII1l;llur I -cc . Tales-Arb�Ca�rJy
2925 East Independence Blvd One North Jefferson Avenue
� Post Office Box 18725 Suite
'v Charlotte, NC 28218 West Jefferson, NC 25694
Phone [phone] Phone [phone]
Architects -Engineers Fox 704-332-6177 Fax [phone]
W Dui 00hIr0r wf C/p•M �vlp✓1 < (>/Pil �
July 1, 2010 %v �(i� d d c v> > L C t✓� /, e
Mr. Tom Belnick ! 5 ✓n
Environmental Specialist
North Carolina Department of Environment and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Reference: Wastewater System Improvements
Town of Cramerton, C
Subject: Request for Speculative Limits
Permit No. NC 0006033
Dear Tom,
As discussed in our meeting, the Town of Cramerton is currently in negotiations with the City of
Gastonia to merge the water and wastewater systems into a regional operation. The Town of
Cramerton's existing wastewater treatment plant is located on the South Fork of the Catawba River
and is permitted under the NPDES Permit No. NC 0006033.
The Town of Cramerton and City of Gastonia are requesting speculative limits for S mgd and 12 mgd
wastewater discharge at its current location.
If there are any questions, please do not hesitate to call.
SincerelPGarrbrick,
Donald PE
President
Over 65 years of architectural and engineering design excellence

Belnick, Tom
From: Garbrick, Don [[e-mail]]
Sent: Friday, July 02, 2010 2:59 PM
To: [e-mail]
Subject: Request for Speculative Limits
Attachments: S35C-110070214400.jpg
Tom,
Attached is a letter requesting speculative limits for the Town of Cramerton WWTP. We would like limits for both 8 mgd
and 12 mgd.
Thanks for your assistance.
«S35C-110070214400. j pg>>
Donald T. Garbrick, PE
President
Pease Associates
Architects -Engineers
2925 E. Independence Blvd.
Charlotte, North Carolina 28205
704.376.6423
704.332.6177 (Fax)
dgarbrick(a),pease-ae.com
www.pease-ae.com
NOTICE: This e-mail message and all attachments transmitted with it may contain legally privileged and confidential
information intended solely for the use of the addressee. If the reader of this message is not the intended recipient, you
are hereby notified that any reading, dissemination, distribution, copying, or other use of this message or its attachments
is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone
(704/376-6423), and delete this message and all copies and backups thereof. Thank you.

A6 Sl �lI / S�L�j�ioo7 10/2-612010
us£ l,s ���/, �✓ , ✓3o�s �,s n,,.2 j�l, f„ , IJ03 04K/
-f lqy -k- 33 mrle -` f 3¢ _ //o A CY6 &r ulh,tlok go
1106,38 y4 3g /G,S'inrlc U136t7 Co 2'til�
116o.8a t 83y (zAvv = 11.b AV/,( 00-0 & /Z 4&0
A)d 3
16s m
O,
— 1,0 nor/k
c, 12, 3
MOO = Imo %. N 113 —2,Z5; IV SO `rtiv,
11 ., /1 11 Ad J

9) / 6/L to)

2-1
41-/ C/a
00# C-V
J�V
4t;

Cwt--k
174t-
3,33 m��Q
N=
m
z
3 33. 6
414
f1&1::s-1016Y.
613VZO07
03/ N X-`
a60 D Lo WL -7
Z
tir7�N Z3Qcfs
3oq t, 3Q 9 CA
p,li f 1
�Jbf
w�h�-

Cramerton WWTP - Existing Limits and Loading
Qw = 4 mgd
BODS 10 mg/I (:,33.6 1-s/d)
NH3 4mg/I(13.4lbi/d)
TN 103,282 Ibs/year (6 mg/I (s) and 12 mg/I (w))
TP 1 mg/I (33.36lbs/d)
Projected limits/loading at Expansion flows
Qw = 8 mgd
BODS 5 mg/I (.3::;3.6lb ld)
NH3 2 mg/I (153.411)3/d)
TN 103,282 Ibs/year (3 mg/I (s) and 6 mg/I (w))
TP 0.5 mg/I (33.36 Ibs/d)
Qw = 12 mgd
BODS 3.33 mg/I (333.6 Ibs/cl)
NH3 1.3mg/I1333.4 as/dj
TN 103,282 Ibs/year (2 mg/l (s) and 4 mg/I (w))
TP 0.33 mg/I (33.36 Ibs/d)
1Af it/
r
,/,,QQ
%E
3 Mf���
Annual TN loading = (summer conc *Qw*8.34*214 days) + (winter conc*Qw*8.34* 151 days)
Annual TN loading = (6 mg/1*4*8.34*214 days) + (12*4*8.34* 151 days)
Annual TN loading = (42834) + (60448)
Annual TN loading=103,282 pounds/year

Ambient Monitoring System Station Summaries
NCDENR, Division of Water Quality
Basinwide Assessment Report
Location: S FORK CATAWBA RIV AT NC 7 AT MCADENVILLE
Station #: C6500000 Hydrologic Unit Code: 03050102
Latitude: 35.26014 Longitude:-81.07390 Stream class: WS-V
Agency: NCAMBNT NC stream index: 11-129-(15.5)
Time period: 01/06/2003 to 12/06/2007
# # Results not meeting EL Percentiles
results ND EL # % %Conf Min 10th 25th 50th 75th 90th Max
Field
D.O. (mg/L)
58
0
<4
0
0
58
0
<5
0
0
pH (SU)
59
0
<6
2
3.4
59
0
>9
0
0
Spec. conductance
57
0
NIA
(umhos/cm at 25°C)
Water Temperature (°C)
59
0
>32
0
0
Other
TSS (mg/L)
20
3
WA
Turbidity (NTU)
59
0
>50
10
16.9
96.9
Nutrients (mg/L)
NH3 as N
59
7
N/A
NO2 + NO3 as N
59
0
>10
0
0
TKN as N
59
1
N/A
Total Phosphorus
59
0
N/A
Metals (ug/L)
Aluminum, total (AI)
17
0
N/A
Arsenic, total (As)
17
17
>10
0
0
Cadmium, total (Cd)
17
17
>2
0
0
Chromium, total (Cr)
17
17
>50
0
0
Copper, total (Cu)
17
6
>7
2
11.8
76.2
Iron, total (Fe)
17
0
>1000
10
58.8
100
Lead, total (Pb)
17
14
>25
0
0
Manganese, total (Mn)
17
0
>200
2
11.8
76.2
Mercury, total (Hg)
16
16
>0.012
0
0
Nickel, total (Ni)
17
17
>25
0
0
Zinc, total (Zn)
17
11
>50
2
11.8
76.2
Fecal Coliform Screening(#/100mL)
# results: Geomean
# > 400: % > 400: %Conf:
58 200
15
26
89.7
5.4
6.9
8.2
9.2
11.1
12.6
14.8
5.4
6.9
8.2
9.2
11.1
12.6
14.8
5.5
6.2
6.4
6.7
7.1
7.6
7.7
5.5
6.2
6.4
6.7
7.1
7.6
7.7
50
77
84
102
124
176
291
3.3 5.9 9.2 15.9 22.4 25.5 27.8
2.5
2.6
6
14.5
27.5
330
500
3.4
5
8.5
17
31
85
380
0.02
0.02
0.03
0.05
0.08
0.11
0.23
0.26
0.48
0.61
0.7
0.79
0.94
1.4
0.2
0.23
0.28
0.36
0.46
0.63
1.5
0.04
0.06
0.07
0.09
0.16
0.22
0.68
130
146
180
850
1800
12400
18000
5
5
5
5
10
10
10
1
2
2
2
2
2
2
10
22
25
25
25
25
25
2
2
2
3
4
16
26
570
642
690
1400
2450
15400
17000
10
10
10
10
10
13
22
37
47
50
63
88
526
710
0.2
0.2
0.2
0.2
0.2
0.2
0.2
10
10
10
10
10
10
10
10
10
10
10
14
55
69
Key.
# result: number of observations
# ND: number of observations reported to be below detection level (non -detect)
EL: Evaluation Level; applicable numeric or narrative water quality standard or action level
Results not meeting EL: number and percentages of observations not meeting evaluation level
%Conf : States the percent statistical confidence that the actual percentage of exceedances is at least 10% (20% for Fecal Coli%rm)
Stations with less than 10 results for a given parameter were not evaluated for statistical confidence
NCDENR, Division of Water Quality
Ambient Monitoring System Report
Catawba River Basin - December 2008
AMS-59

Ambient Monitoring System Station Summaries
NCDENR,
Division of Water Quality
Basinwide Assessment Report
Location: S FORK CATAWBA RIV AT SR
2524
NR SOUTH BELMONT
Station #: C7000000
Hydrologic
Unit Code:
03050102
Latitude: 35.16666
Longitude:
-81.03825
Stream class:
WS-V B
Agency: NCAMBNT
NC stream index:
11-(123.5)
Time period: 01/28/2003
to 12/13/2007
#
#
Results not meeting EL
Percentiles
results
ND
EL
#
%
%Conf Min
10th
25th
50th
75th
90th
Max
Field
D.O. (mg/L)
57
0
<4
0
0
5.2
6.2
6.8
7.9
9.2
10.2
10.7
57
0
<5
0
0
5.2
6.2
6.8
7.9
9.2
10.2
10.7
pH (SU)
57
0
<6
1
1.8
5.8
6.2
6.4
7
7.5
7.8
8.4
57
0
>9
0
0
5.8
6.2
6.4
7
7.5
7.8
8.4
Spec. conductance
55
0
N/A
54
64
69
77
90
103
122
(umhos/cm at 25°C)
Water Temperature (°C)
57
0
>32
15
26.3
100 9.6
13.9
18.8
26.2
33
34.5
38.1
Other
Chlorophyll a (ug/L)
2
0
>40
0
0
8
8
8
8
8
8
8
TSS (mg/L)
20
2
NIA
4
4.1
5.8
6.5
11.2
32.7
50
Turbidity (NTU)
57
0
>25
5
8.8
4.6
5.1
6
8.5
11.5
26.4
150
Nutrients (mg/L)
NH3 as N
1
0
N/A
0.02
0.02
0.02
0.02
0.02
0.02
0.02
NO2 + NO3 as N
1
0
>10
0
0
0.35
0.35
0.35
0.35
0.35
0.35
0.35
TKN as N
1
0
NIA
0.36
0.36
0.36
0.36
0.36
0.36
0.36
Total Phosphorus
1
0
NIA
0.04
0.04
0.04
0.04
0.04
0.04
0.04
Metals (ug/L)
Aluminum, total (Al)
17
0
WA
170
178
260
330
885
2140
5100
Arsenic, total (As)
17
17
>10
0
0
5
5
5
5
10
10
10
Cadmium, total (Cd)
17
17
>2
0
0
1
1
2
2
2
2
2
Chromium, total (Cr)
17
17
>50
0
0
10
10
25
25
25
25
25
Copper, total (Cu)
17
1
>7
13
76.5
100 2
4
7
8
9
10
10
Iron, total (Fe)
17
0
>1000
4
23.5
97.8 270
318
365
480
1050
2380
5500
Lead, total (Pb)
17
17
>25
0
0
10
10
10
10
10
10
10
Manganese, total (Mn)
17
0
>200
0
0
33
35
38
45
60
82
110
Mercury, total (Hg)
16
16
>0.012
0
0
0.2
0.2
0.2
0.2
0.2
0.2
0.2
Nickel, total (Ni)
17
17
>25
0
0
10
10
10
10
10
10
10
Zinc, total (Zn)
17
14
>50
0
0
10
10
10
10
10
14
25
Fecal Coliform Screening(#1100mL)
# results: Geomean
# > 400: % > 400: %Conf:
57 18
3
5
Kev:
# result number of observations
# ND: number of observations reported to be below detection level (non -detect)
EL: Evaluation Level; applicable numeric or narrative water quality standard or action level
Results not meeting EL: number and percentages of observations not meeting evaluation level
%Conf : States the percent statistical confidence that the actual percentage of exceedances is at least 10°% (20% for Fecal Coliform)
Stations with less than 10 results for a given parameter were not evaluated for statistical confidence
NCDENR, Division of Water Quality
Ambient Monitoring System Report
Catawba River Basin - December 2008
AMS-60

'o . ,. r.
(;/�Mwjam z,,, e, 3 0 3
S'v 03083Y yA
J
Or
6�mf
00 /0 10-3
�- ZGO �
0 36 4-01 0 Z
a

Z Gaston County
Wastewater Treatment Plants
ONE COMPANY I M., SOIWIOu-