NC0057533_Permit Issuance_20120119

• ,. - A o�
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue ' Charles Wakild, P.E. Dee Freeman
Governor Director Secretary
January 19,2012-
Glen Walker,; Superintendent
Brunswick County Public Utilities. Department.:
P.O•:,Box 249:,; :.
Bolivia, -North-,Carolina 28422. -
Subject: Issuance ofNPDES Permit .
• NC0057533 — Class 1
NW Water.Treatment.Plant (WTP) —Hood Creek
4091 Butler Road; Leland28451
• " -Brunswick County
Dear Mr.. Walker:
'The Division -of Water Quality (the Division) ;hereby issues the attached..NPDES- permit for the subject,
•facility:. We issue this permit. pursuant to' the requirements'of North Carolina, General Statute.143-215.1 . .
and 'the" Memorandum of .Agreement between .North Carolina and the U.S. Environmental Protection
Agency dated October-,-15, 2007; or as subsequently amended.
The Division has reviewed your effluent data, and updated permit limits and monitoring requirements to
reflect compliance under current guidance,, consistent with permits statewide utilizing Conventional
potable -water treatment technologies. We acknowledge receiving your draft -review comments dated
December 2l; 2011, and per your request have included a copy of the Fact Sheet and Reasonable Potential '
Analysis (RPA) used for this renewal.
Changes" to Your Previous Permit. Based on your renewal application (amended May 6, 2011), we have
revised your permit in accord with the Division's current permitting guidance -(October 2009) forpotable-
water treatment plants (WTPs). We understand that you have made no significant alterations to your
wastewater treatment facilities, since last renewal (2006) except to add dechlorination under ATC permit
057533A01: We have, clarified your facility description, updated your facility map, and added parameter
codes to the effluent monitoring pages for your convenience. [see Supplement to Cover Sheet and permit §
Total Nitrogen.- Concerning your request to discontinue monitoring, the requirement to monitor Total
Nitrogen is,not related to Nutrient Sensitive Water (NSW) stream classification. Monitoring is required of
all WTP statewide with waste -flows above 0.05 MGD =no change to the permit.

NPDES Permit Issuance
NCO057533
Page 2 of 3
Changes from the Permit Draft - Total Zinc, Ammonia Nitrogen, and Total Fluoride. Per your request, the
Division has revised the permit to require monitoring of Zinc and Ammonia Nitrogen "only if..." you use
chemically related additives in your water -treatment processes [see permit § A. (l.) and footnotes]:
Considering that this facility backwashes filters with fluoridated water, facilitating the concentration of
fluoride in the -effluent, the Division, has also added Total Fluoride monitoring (Quarterly), according to
WTP permitting guidance.
Changes from the Permit Draft - Turbidity. The Division acknowledges your request to affect Option #1 for
Turbidity under current WTP guidance. While monitoring is still required, .we have removed the effluent
permit limit for Turbidity and added up -stream and down -stream monitoring at Hood Creek [see table and
footnote in, § A. (1.)]; we have also removed reference to "zero -flow" receiving -stream conditions.
However, considering that your reported wastewater flow averages 0.70 MGD [database n=1,630], the
monitoring frequency for effluent and instream Turbidity has been increased from 2/1\4onth in the draft to
Weekly, in accord with the WTP policy for flows exceeding 0.50 MGD.
Changes from the Permit Draft - Total Aluminum. The Division acknowledges your request (received
December 22, 2011) for the Reasonable Potential Analyses (RPAs) databases used to establish permit
limits for Total Aluminum and Total Iron. We have therefore included the EPA=mandated Fact Sheet and
supporting documentation established for renewal. The Draft RPA assumed a maximum wastewater flow
of 12.59 MGD (now disregarded as a data -entry error, reported Dec2010). This has been corrected to a
maximum reported effluent for the compliance period of 4.124 MGD (13Jun2009). Please note that even
with a revised RPA, your effluent data for Total Aluminum continue_ to show reasonable potential to
exceed the federal Human Health Standard of 8,OOOµg/L (max. predicted 9,630µg/L). However, the
revised maximum flow allows the permit draft limit to rise slightly from 8',029µg/L to 8,087µg/L for Total
Aluminum, considering flow -dilution credit from the receiving stream.
The Division suspects that elevated aluminum in your effluent is a consequence of aluminum -salt additives
declared on your renewal application, and not a result of conditions naturally occurring. We trust that
revised management strategies will achieve compliance, and therefore have given you a relaxed schedule
to achieve compliance with the aluminum limit by March 1, 2013 (12 months from the permit effective
date) [see footnote # 3, § A. (1.)].
Changes from the Permit Draft - Total Iron. While Total Iron data continue to show reasonable potential
to exceed the 1000µg/L stream standard [max predicted 2,403µg/L], Total Iron is currently listed as a NC -
State Action Level parameter of concern. While monitoring of action level parameters is required, they are
typically not limited unless deemed related to failure of Whole Effluent Toxicity (WET) tests. Therefore,
the permit draft limit for Total Iron has been removed [see § A. (1.)].
If any parts, measurement frequencies, or sampling requirements contained in this permit are unacceptable,
you have the right to an adjudicatory hearing, upon written request submitted within thirty (30) days after
receiving this letter. Your request must take the form of a written petition conforming to Chapter 150B of
the North Carolina General Statutes, and you must file it with the office of Administrative Hearings, 6714
Mail Service Center, Raleigh, North Carolina 27699-6714. Unless such a demand i&made, this permit
shall be final and binding.

NPDES Permit Issuance
NCO057533
Page 3 of 3
This permit is not transferable except after notifying the Division of Water Quality. The Division may
require permit modification, or revocation and re -issuance. Please note that this permit does not affect your
legal obligation to obtain other permits required by the Division of Water Quality, the Division of Land
Resources, the Coastal Area Management Act, or other federal or local governments.
If you have questions, or if we can further assist you, please contact Joe Corporon at
fioe.corporonQncdenr.zov] or call [phone].
Re, lly,
G
`f Charles Wakild, P.E.
Enclosure: NPDES Permit NCO057533 (Final) o�oF warER pG
hc: Central Files
Wilmington Regional Office/Surface Water Protection Section, Linda Willis
NPDES Program Files
ec: Aquatic Toxicology Unit, Susan Meadows
CG&L, Kim Colson
One
1617 Mail Service Center, Ralegh, North Carolina 27699-1617 NorthCarohna
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] \ FAX: [phone] Customer Service:1-877-623-6748 Nahlrall'ff
Internet www.ncwaterquality.org

„ - lV 1JlU%­Lxx- _ ♦,r ary .a a... rr aaai.�� �.�. ��_ —__— ...
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM,
Incompliance with the provisions of North Carolina General Statute 143-215.1other lawfulstandards
and regulations promulgated and adopted by the North Carolina Environmental Management
Commission, and the Federal:Water Pollution Control Act,. as amended,-
'.Brunswick County Public Utilities,
is hereby authorized' to discharge wastewater from a facility. located at the
Northwest Water Treatment Plant (WTP) -Hood Creek
4091 Butler Road, Leland
Brunswick County
to, receiving waters designated Hood Creek within the Cape Year River Basin in accordance with effluent
limitations; -monitoring. requirements, and other conditions set forth in -Parts I, II, III, acid Iv hereof
The permit modification shall become effective on March 1, 2012.
This permit and the authorization to discharge shall expire at midnight on November 3 0, 2016.
Signed this day, January 19, 2012.
C es Wakild, P.E.,Director
'Vision of Water Quality
t
By Authority of the Environmental Management Commission

Permit NC0057533
SUPPLEMENT TO PERMIT COVER SHEET
All -previous NPDES Permits issued to this facility, whether for operation or discharge are hereby
revoked, and as of this issuance, any previously issued permit bearing this number is no longer effective.
Therefore, the exclusive authority to operate and discharge from this facility arises under the permit
conditions, requirements, terms; and provisions described herein. _
Brunswick County Public Utilities
is hereby authorized to:
1. continue to operate a wastewater treatment system employing in support of the production of
potable water Conventional potable water treatment technology, .utilizing:
• :.influent disinfection (chlorination)
• two (2) each 12 MGD up -flow clarifiers [disinfected raw water]
• two (2) banks of four (4) each filters [sand/anthracite/gravel filter; backwash contains
chlorine and fluoride]
• one (1),clear well (4 MGD)
surge,l-agoon (2.0 MGD)'
• sludge thickener (0:180 MGD)
• dechlorination
• - chemical usage consisting of
o chlorine dioxide .(chlorination)
o sodium hydroxide (50%)
:o poly aluminum chloride (flocculation)
o sodium silica fluoride
o bleach -type solutions
o cationic polymer solutions
o calcium thiophosphate (dechlorination)
facilities located at the Northwest Water Treatment Plant —Hood Creek, 4091 Butler Road,
Brunswick County; and
2. discharge from said treatment works, at the location specified on the attached map, to Hood
Creek, [stream segment 18-66], a waterbody currently classified C; Swamp within Subbasin
03-06-17 of the Cape Fear River Basin'.

': C� -*-, - - -
,I t
`/�
13 re a
Hood Creek u
� .�-, +may - .��I��• ��� � „a .. � �� . �` G,t.
7;
l '
`Jf• Cape Fear River
(flows northeast) :,�
y e it i(r
k
©!� �-' �'✓ � to
bsf
Mount'Miseiy Road NE � ` _ �� ' , � �� � ��- >✓�
x--•-� � I �, r ( '` `T�,�',�, � � fit, ,•,3
%� Hooper r'Ii
-- t l �1426 ' jr t
/{ } , Butler Road NEill
J�,
NW,
t �v- 11 ( \ Approximate '
Outfall 001 Property Perimeter
(flows west) 1 175 1'3
Brunswick County Public Utilities
Northwest WTP - Hood Creek
USGS Quad/State Grid: Leland, NC / J26SE Stream Class: C; Swamp
Latitude: - N 34' 18' 08" Sub -Basin: 03-06-17
Longitude: W 78' 06' 48" HUC: 03030005
Drainage Basin: Cape Fear River Basin
Receiving Stream: Hood Creek [stream segment 18-66]
Facility
Location
[not to scale]
NPDES Permit NC0057533
North
Brunswick County

Permit NC0057533
A. (L) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
For the period beginning on the effective date and lasting until permit expiration, the Permittee is authorized to
discharge treated wastewater from Outfall 001 into Hood Creek. Such discharges shall be limited and monitored
by the Permittee as specified below:
'EFFLiJENT,
Permit limns ,; ..
:.
;;, .:'1Vlonitoring Re`'uirements . £'
CHARACTERISTICS-',
„Monthly
"Weekly ''
Daily.:,96asurement,
-
Sample
Sample Location'
::[Pardmeter,Godes]-, .., _ _.
'.',Pivera e;
Axera a
:='MaAmum
-.Fre uenc
: T e_
Flow (MGD)
50050
_
Continuous
Recording -
Effluent
Total Suspended Solids
C0530
30 mg/L
45 Mg/L
Weekly
Grab
Effluent
TRC 1
50060
17 µg/L 1
Weekly
Grab
Effluent
pH
00400
Not < 6.0 nor > 9.0 standard units
Weekly
Grab
Effluent
Turbidity p k0
0' V
Weekly Z
Grab
Effluent
Turbidity p') 0�0
0 6
z
Weekly
Grab
Upstream &
Downstream
Total Aluminum
01105
8,087 µg/L 3
Monthly 4
Grab
Effluent
Total Copper ,
01042
'Quarterly 4
Grab
Effluent
Total Manganese
01055
Quarterly 4
Grab
Effluent
Total Iron
01045
Quarterly 4
Grab
Effluent
Total Fluoride
00951
Quarterly 4
Grab
Effluent
-Total Zinc 5
01092
Quarterly 4
Grab
Effluent
Ammonia Nitrogen 6
C0610
Quarterly
Grab
Effluent
Total Nitrogen (TN)
C0600
Quarterly
Grab
Effluent
Total Phosphorus (TP)
C0665
Quarterly
Grab
Effluent
WET Testing 7
TGP313
Quarterly
Grab
Effluent
Footnotes: - .
1) TRC (Total Residual Chlorine) monitor only if chlorine is used to disinfect. All TRC concentrations reported
below 50 µg/L by a NC -Certified test method (including field -certified), shall be considered compliant with this
permit. However, the Permittee shall submit all lab -reported concentrations, even if detected below 50µg/L.
2) Turbidity — Instream samples shall be collected —50 feet upstream of the outfall, and —100 feet downstream of the
outfall. Discharge from this facility shall not cause receiving -stream turbidity to exceed 50 NTU. If receiving -
stream background exceeds 50 NTU, this discharge shall not cause background turbidity to increase.
3) Compliance to this Total Aluminum limit shall commence on March 1, 2013, 12 months from the permit
effective date.
4) This parameter to be sampled concurrently with WET testing.
5) This parameter shall be sampled only if the Permittee uses treatment additives containing zinc.
6) This parameter shall be monitored only if the Permittee uses chloramines to disinfect the source water.
7) WET (Whole Effluent Toxicity) Testing; CHRONIC, monitoring only; use species Ceriodaphnia dubia;
effluent @ 90 %; February, May, August, and November [See § A. (2.)].
Conditions: The Permittee shall discharge no floating solids or foam.
_ Additional conditions apply to this permit [See § A. (3.)].

Permit NCO057533
A. (2.) CHRONIC TOXICITY PERMIT - MONITORING ONLY (QUARTERLY)
The Permittee shall conduct quarterly chronic toxicity tests using test procedures outlined in the "North Carolina
Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions.
The effluent concentration defined as treatment two in the procedure document is 90%. The permit holder shall
perform quarterly monitoring using this procedure to establish compliance with the permit condition. The tests
will be performed during the months of February, May, August, and November. Effluent sampling for this
testing shall be performed at the NPDES permitted final effluent discharge below all treatment processes.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the month in which it was performed, using the parameter code TGP3B.
Additionally, DWQ Form AT-1 (original) is to be sent to the following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete and accurate and include all supporting chemical/physical measurements performed
in association with the toxicity tests, as well as all dose/response data. Total residual chlorine of the effluent
toxicity sample must be measured and reported if chlorine is employed for disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name; permit number, pipe number, county, and the month/year of the report with the notation of "No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at
the address cited above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately. Upon submission of a valid test, this monthly test requirement will revert to
quarterly, in the months specified above.
Should any test data from this monitoring requirement or tests .performed by the North Carolina Division of
Water Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to
include alternate monitoring'requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls; shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.
A. (3.) PERMIT RE -OPENER: TMDL IMPLEMENTATION
The Division may, upon written notification to the Permittee, re -open this permit in order to incorporate or
modify effluent limits, monitoring and reporting requirements, and other permit conditions when it deems such
action is necessary to implement Total Maximum Daily Load (TMDL) approved by the USEPA.

Renewal Nov2011
NC0057533
FACT SHEET
Complex EXPEDITED - PERMIT RENEWAL
NCO057533
Basic Information for Expedited Permit Renewals %
Permit Writer/Date
Joe R. Corporon L.G. / 18Nov2011; updated 19Jan2012
Permit Number - County
NC0057533 — Brunswick County
Facility Owner
Brunswick County Public Utilities
Facility Name
Northwest Water Treatment Plant P - Ho o reek
WTP Source Water
Pumped from the Cape Fear River
Basin Name/Sub-basin number
Cape Fear River Basin / 03-06-17
Effluent Receiving Stream
Hood Creek [segment 18-66 HUC: 03030005
Stream Classification in Permit
C; SW
Does permit need
Daily Max NH3 limits?
No (NH3 monitoring to be added, but not limited)
Does permit need TRC
limits/language?
Yes _ revised TRC Footnote
Does permit have
WET toxicity testing?
No [Conventional Treatment Technology — no data]; added WET
testing Quarterly; CHRONIC @ 90%, Monitoring only.
Does permit have Special Conditions?
Yes — reo ener for potential Lower Cape Fear TMDL
Does permit have instream
monitoring?
Yes - Turbidity
Is the stream impaired on 303(d) list)?
No [HUC: 03030005]
Any obvious compliance concerns?
Yes — regular effluent exceedences of freshwater standards for
Total Iron and Total Aluminum see RPA)
Any permit MODs since lastpermit?
Yes — MOD to install dechlor Feb2008
Requests for Renewal
Received 19A r2011; amended 03Ma 2011
Current expiration date
November 30, 2011
New expiration date
November 30, 2016
Comments on Draft Permit?
[See Permittee's comments dated 21Dec201 l; addressed in permit
Final cover letter.]
Staff Report (Nov2006) — Wilmingion Region WiRO recommends that renewal consider filter-backwashing
with fluoridated water, and suggest monitoring and a permit limit of 1,800µg/L; recommends TSS monitoring
increase from 2/Month to Weekly, given wastewater flow estimated at < 4.0 MGD [current guidance says any >
0.500 MGD]. WiRO also notes concern about effluent Total Iron and Total Aluminum.
Renewal. DWQ will renew this permit consistent the current WTP policy, October 2009. Considering that the
Outfall is NOT at Hood Creek, but up the hill (see revised site map and property perimeter), the Permittee
appears to control the entire drainage to this outfall, arguably defining this drainage feature as an "effluent
channel" under current rule. Therefore, effluent flow may be afforded stream -dilution credit under the
established receiving -stream flow (see Waste Load Allocation, 1986).

Renewal Nov2011
NC0057533
Changes to the Previous Permit. Updated facility description (Supplement to Cover Sheet) and facility map;
added parameter codes to effluent tables; updated limits and monitoring by standard reasonable potential
analyses (RPA) considering dilution. Despite WiRO's recommendation to limit Total Fluoride in the permit, to
date, there is no database to establish reasonable potential. Therefore, Total Fluoride monitoring (Quarterly) has
been added to the permit per WTP policy.
RPA. A standard reasonable potential analysis (RPA) was conducted on Total Iron and Total Aluminum data
using reported MAX flow of 4.124 MGD. Both parameters show reasonable potential to exceed applicable
standards (see attached RPA database and analyses), as summarized herein.
Parameter
Reasonable Potential (RP)
Comment
Action
RP = Yes
Aquatic Life Standard revisions in
progress;
Monitor only - relax
Total Iron
Max predicted = 2,403 µg/L
Weekly monitoring to
(Action Level Parameter — no limit
Quarterly
Max allowed = 1,004 µg/L
unless related to WET test failure)
RP = Yes
Add permit limit of
Total
Max predicted = 9,630 µ g/L
Human Health Standard violation
8 087 Monitor
µme'
Aluminum
Monthly
Max allowed = 8,029 µg/L
Total
No data to date / established future
Add monitoring only
Fluoride
Not applicable
compliance limit of 1,820 µg/L, if
Quarterly
needed

NW Brunswick County WTP - Hood CreeREASONABLE POTENTIAL ANALYSIS
N CO057533 NOTE: Flow max reported = 4.12 MGD for the time period. [average of 1630 discharges = 0.708 MGD]
Qw (MGD) = 4.12
WWTP/WTP Class: WTP
IQIOS (cfs)= NO 1Q10s DATA
IWC @ 1Q10S = N/A
7QIOS (cfs) = 0.07
IWC @ 7Q10S = 98.92%
7Q10W (cfs).= 2.11
IWC @ 7Q10W = 75.18%
30Q2 (cfs) = 1.04
IWC @ 30Q2 = 86.01 %
Avg. Stream Flow, QA (cfs) = 36.20
IWC @ QA = 15.01 %
Receiving Stream: Hood Creek
Stream Class: C;Swarnp
Outfall 001
Qw = 4.124 MGD
CHRONIC TEST CONCENTRATION = DEFAULT %
=90°/
PARAMETER
STANDARDS & CRITERIA (2)
y
REASONABLE POTENTIAL RESULTS
RECOMMENDED ACTION
TYPE
-�
f-
(1)
NC WQS / Applied 1/2 FAV /
IL
D
n # Det. MaC,Pred Allowable Cw
Chronic Standard Acute
Acute: NO WQS
Aluminum
NC
8000 FW(7Q10s)
ug/L
134 134
9,630
--------------------------------------------
Chronic: 8087
RP = YES
No value > Allowable Cw
Acute: NO WQS
Iron
NC
1000 FW(7Q10s)
ug/L
134 134
2,403
---------------------------------------
Chronic: 1011
RP = YES
5 value(s) > Allowable Cw
Acute: NO WQS
Fluoride
NC
1800 FW(7QIOs)
ug/L
0 0
N/A
---------------------------------------------
Chronic: 1820
to establish limit / no data to date
57533 Brunswick RPA on data Apr2009-Oct2011 b, rpa
Page 1 of 1 1/19/2012

Freshwater RPA
REQUIRED DATA ENTRY MISSING/INSUFFICIENT DATA
Table 1. Project Information Table 2. Parameters of Concern
Lq CHECK if HQW or ORW only Name Type Chronic Modifier Acute PQL Units
Facility Name
WWTP/WTP Class
NPDES Permit.
Outfall
Flow, Qw (MGD)
Receiving Stream
Stream Class
NW Brunswick County WTP - Hood Creek
Parot
Par02
Par03
Par04
Par06
Par07
WTP
NCO057533
001
4.12Paro5
Hood Creek
C;Swamp
7Q10s (cfs)
7Q10w (cfs)
30Q2 (cfs)
QA (cfs)
Par08
Par09
Par10
Par11
1 Q105 (cfs) Par12
Data Source(s) BIMS Reports download Parts
❑ CHECK for MODEL Par14
Par15
0.07
;
2.11
1.04
36.2
Par16
Par17
Par18
Par19
Follow directions for data. entry. in some cases a
'comment:menu List the available choices or a
dropdown menu will'provide a list you maY, select ' -'
Par20
from. Error message occur if data entry does not
Par21
meet input ctitetia.-
Par22
NOTE: Flow max reported = 4.12 MGD for the time period. [average of 1630 discharges = 0.708 MGD]
?DATA?
57533 Brunswick RPA on data Apr2009-0ct2011 b, input
1/1912012

REASONABLE POTENTIAL ANALYSIS
Aluminum
Iron
Date
Data
BDL=1/2DL
Results
• -
Date
Data
BDL=1/2DL
Results
1
2009
Std Dev.
1300.2
1
2009
Std Dev.
2
2009
1540.
1540
Mean
1338.3
2
2009
Mean
3
2009
1240.
1240
C.V.
1.0
3
2009
270
270
C.V.
4
2009
n
134
4
2009
210
210
n
5
2009
•''
340.
340
5
2009
6
2009
280.
280
MultFactor=
1.50
6
2009
50
50
MultFactor=
7
2009
1080.
1080
Max. Value
6420 ug/L
7
2009
40
40
Max. Value
8
2009
1360
1360
Max. Pred Cw
9630 ug/L
8
2009
190
190
Max. Pred Cw
9
2009
9
2009
610
610
10
2009
760.
760
10
2009
11
2009
11
2009
230
230
12
2009
880.
880
12
2009
13
2009
13
2009
230
230
14
2009
14
2009
15
2009
2950.
2950
15
2009
16
2009
16
2009
550
550
17
2009
3110.
3110
17
2009
18
2009
18
2009
1000
1000
19
2009
190.
190
19
2009
20
2009
20
2009
60
60
21
2009
3150.
3150
21
2009
22
2009
'720
720
22
2009
1220
1220
23
2009
i
23
2009
320
320
24
2009
370
370
24
2009
25
2009
25
2009
120
120
26
2009
2910
2910
26
2009
27
2009
27
2009
460
460
28
2009
11W
1160
28
2009
u
29
2009
970'
970
29
2009
210
210
30
2009
30
2009
170
170
31
2009
1700�
1700
31
2009
32
2009
2850
2850
32
2009
420
420
33
2009
2600
2600
33
2009
700
700
34
2009
34
2009
400
400
35
2009
770'
770
35
2009
36
2009
560!
560
36
2009
180
180
37
2009
1370:
1370
37
2009
180
180
38
2009
38
2009
260
260
39
2009
39
2009
40
2009
.•
4560
4560
40
2009
41
2009
910�
910
41
2009
250
250
42
2009
190
190
42
2009
200
200
43
2009
43
2009
50
50
44
2009
1800
1800
44
2009
45
2009
'
900.
900
45
2009
220
220
46
2009
990
990
46
2009
160
160
47
2009
1340
1340
47
2009
130
130
48
2009
240
240
48
2009
160
160
49
2009
270
270
49
2009
90
90
50
2009
740'
740
50
2009
50
50
51
2009
690,
690
51
2009
100
100
52
2009
430.
430
52
2009
100
100
53
2009
200
200
53
2009
60
60
54
2009
860
860
54
2009
50
50
55
2009
500'
500
55
2009
150
150
56
2009
440
440
56
2009
80
80
57
2009
380,
380
57
2009
60
60
58
2009
390
390
58
2009
90
90
59
2009
470
470
59
2009
50
50
60
2009
550
550
60
2009
70
70
61
2009
240
240
61
2009
90
90
62
2009
400
400
62
2009
"
50
50
63
2009
50
50
63
2009
70
70
64
2QQ9
450
450
64
2QQ9
10
10
65
2009
65
2009
100
100
66
2009
66
2009
67
2009
280
280
67
2009
68
2009
{i
180.
180
68
2009
40
40
69
2009
190
190
69
2009
30
30
70
2009
390
390
70
2009
40
40
273
1.07
134
1.55
1550
2403
57533 Brunswick RPA on data Apr2009-0ct2011 b, data
-4- 1 /19/2012

REASONABLE POTENTIAL ANALYSIS
71
2009
71
2009
80
80
72
2009
72
2009
73
2009
73
2009
74
2009
730.
730
74
2009
75
2009
75
2009
120
120
76
2010
989,
989
76
2010
77
2010
77
2010
121
121
78
2010
636,
636
78
2010
79
2010
79
2010
91
91
80
2010
138
138
80
2010
81
2010
586
586
81
2010
28
28
82
2010
240
240
82
2010
127
127
83
2010
470,
470
83
2010
40
40
84
2010
1390
1390
84
2010
70
70
85
2010
400
400
85
2010
170
170
86
2010
1270'.
1270
86
2010
60
60
87
2010
309'
309
87
2010
166
166
88
2010
3770
3770
88
2010
49
49
89
2010
89
2010
991
991
90
2010
602'
602
90
2010
91
2010
78
78
91
2010
237
237
92
2010
92
2010
17
17
93
2010
880!
880
93
2010
94
2010
290
290
94
2010
190
190
95
2010
j
900
900
95
2010
60
60
96
2010
720
720
96
2010
240
240
97
2010
550
550
97
2010
340
340
98
2010
2830'
2830
98
2010
150
150
99
2010
2500 :
2500
99
2010
560
560
100
2010
2510j
2510
100
2010
730
730
101
2010
101
2010
550
550
102
2010
5160i
5160
102
2010
103
2010
1020'
1020
103
2010
1550
1550
104
2010
480'
480
104
2010
150
150
105
2010
730!
730
105
2010
160
160
106
2010
(
940'
940
106
2010
110
110
107
2010
107
2010
140
140
108
2010
1
260
260
108
2010
109
2010
810
810
109
2010
40
40
110
2010
530 '
530
110
2010
120
120
111
2010
j
230:
230
111
2010
60
60
112
2010
i
660:
660
112
2010
40
40
113
2010
1
2400
2400
113
2010
70
70
114
2010
860
860
114
2010
350
350
115
2010
430
430
115
2010
150
150
116
2010
2260
2260
116
2010
60
60
117
2010
117
2010
400
400
118
2010
1370
1370
118
2010
119
2010
i
1300
1300
119
2010
160
160
120
2010
1
1360
1360
120
2010
140
140
121
2010
1200 -
1200
121.
2010
260
260
122
2010
590.
590
122
2010
550
550
123
2010
250
250
123
2010
70
70
124
2010
330
330
124
2010
40
40
125
2010
2580
2580
125
2010
100
100
126
2010
1160
1160
126
2010
370
370
127
2010
i
3770
3770
127
2010
200
200
128
2010
j
2280
2280
128
2010
760
760
129
2010
i
3940
3940
129
2010
410
410
130
2010
i
130
2010
890
890
131
2010
131
2010
132
2010
470
470
132
2010
133
2010
5730
5730
133
2010
70
70
134
2010
1680
1680
134
2010
320
320
135
2010
3690
3690
135
2010
360
360
136
2010
136
2010
670
670
137
2010
i
137
2010
138
2010
138
2010
139
2010
4660
4660
139
2010
140
2010
140
2010
800
800
141
2010
4340
4340
141
2010
142
2011
2090
2090
142
2011
660
660
143
2011
143
2011
360
360
144
2011
6420
6420
144
2011
57533 Brunswick RPA on data Apr2009-Oct2011 b, data
- 5 - 1/19/2012

REASONABLE POTENTIAL ANALYSIS
145
2011
2420
2420
145
2011
1080
1080
146
2011
2810 '
2810
146
2011
440
440
147
2011
3870'
3870
147
2011
540
540
148
2011
2790
2790
148
2011
1160
1160
149
2011
''
1760'
1760
149
2011
530
530
150
2011
2060
2060
150
2011
310
310
151
2011
2090
2090
151
2011
650
650
152
2011
11801
1180
152
2011
520
520
153
2011
153
2011
210
210
154
2011
340
340
154
2011
155
2011
4620
4620
155
2011
70
70
156
2011
880.
880
156
2011
1300
1300
157
2011
157
2011
200
.200
158
2011
650
650
158
2011
159
2011
1310,
1310
159
2011
140
140
160
2011
1410
1410
160
2011
300
300
161
2011
150
150
161
2011
350
350
162
2011
;
870
870
162
2011
40
40
163
2011
1650
1650
163
2011
190
190
164
2011
930
930
164
2011
420
420
165
2011
530
530
165
2011
170
170
166
2011
166
2011
90
90
167
2011
1780i
1780
167
2011
168
2011
480
480
168
2011
350
350
169
2011
320
320
169
2011
50
50
170
2011
` "
2490
2490
170
2011
60
60
171
2011
171
2011
610
610
172
2011
100
100
172
2011
173
2011
, ,
430'
430
173
2011
50
50
174
2011
100
100
174
2011
120
120
175
2011
660
660
175
2011
30
30
176
:x
176
2011
230
230
177'
•
177'
178
178,
179'
179
1 W
180
181
181'
182.
182
{
183�
183
{
184,
s
184
(
18
185
{
111VVi i
1E:
186
187'
187
188'
188
189
189
190,
190
191';
191 '
192
192
193
!
193
194;
194
195
195
196
(
196
197
197
j
198'
198
199
i
199
200
I (
200
57533 Brunswick RPA on data Apr2009-0ct2011 b, data
- 6 - 1/19/2012

. L
_ ,�s�+MIC C PO BOX 249
COUNTY OF `bQJ '< BOLIVIA, NC 28422
BRUNSWICK mot„ (91 O) 371-3490
PUBLIC UTILITIES DEPARTMENT y :7 (91 0) 37 1-5755 FAX
SURFACE WATER TREATMENT [e-mail]
DIVISION'���hq�R����?
TO: Joe Corporon, DWQ/NPDES
FROM: Glenn Walker, WTP Superintendent, ORC Northwest WTP.,
DATE: December 21, 2011
SUBJECT: NPDES Permit Draft Review and Comments for NCO057533
I am writing you this letter on behalf of Brunswick County (BC) in hopes of
modifying the draft permit for the Northwest Water Treatment Plant (WTP) - Hood
Creek. We have outlined several monitoring parameters that appear to be
inconsistent with the guidance manual referenced in the NPDES Permit — Draft
Review letter we received November 22, 2011. We ask that you review our
requests, make comments, and ask questions as necessary.
1. BC would like a copy of the RPA and the raw data used in determining the
RPA along with any relevant information such as dates/data points and
any reasoning for deviation from the RPA guidance.
2. Based on the guidance document referenced in the draft permit (October
2009) 1 see some parameters that raise concern for BC as the permittee.
Turbidity: According to DWQ's stream classification map, Hood Creek is
classified as CSW, and not zero flow, and there is no mention of it being
impaired. So BC would like to choose option 1 under appendix A for
turbidity in the referenced guidance document (October 2009) used for
determining monitoring requirements, as it states it is the choice of the
permittee to choose between option 1 or 2. Option 1 is consistent with our
current permit and we see no detrimental effect on the receiving stream,
nor have any been documented in the past. VJS ; 66�� -
Total Aluminum: According to the referenced guidance document
(October 2009) there is no Water Quality Standard for Aluminum and as a
result there is no limit to compare data obtained, and therefore BC asks
that you remove this monitoring requirement and its associa
maximum limit from the new permit. L--
DEC 22 2011
DENR-WATER QUALITY

Total Iron: According to the referenced guidance document (October
2009) there is no Water Quality Standard for Iron and as a result there is
no limit to compare data obtained, and therefore BC asks that you remove
the daily maximum limit for Total Iron. (Appendix A, II.Toxicants) Cyot '- P-S
Total Zinc: BC does not use zinc orthophosphate and therefore ask that it
be removed from the new permit. (October 2009, Table 3.1 Footnote #6)
Total Nitrogen: Hood Cred is not a NSW classified stream and we do not
backwash our filters with chloraminated water, therefore BC asks that you
remove Total Nitrogen from the permit. A,OS ` ?�Z\,.
Ammonia Nitrogen: Hood reek Is not a NSW classified stream and we
do not backwash our filters ith chloraminated water, therefore BC asks
that you remove Ammonia itrogen from the permit. l� �O�A V10te
This letter is to supersede all previous correspondence(s) either verbal or via
email.
cc: Brunswick County PUD , Jerry Pierce
WiRO/SWPS, Linda Willis

AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA
COUNTY OF NEW HANOVER
ems-
Before the undersigned, a Notary Public of Said County and State,
Public Notice
North Carolina Environmental Man-
agement Commission/NPDES Unit
1617 Mail Service Center
Keith Raffone
Raleigh; NC 27699-1617
Notice of Intent to Issue a NPDES
Wastewater Permit
The North Carolina Environmental.
Who, being duly sworn or affirmed, according to the law, says that he/she is
Management Commission proposes
to issue a NPDES wastewater dis-
charge permit to the person(s)
Controller
listed below.
WrittQn comments regarding the
proposed permit will be accepted
until 30 days afterthe publish date
of THE STAR -NEWS, a corporation organized and doing business under the Laws of the State o
of this notice. The Director of the
North Carolina, and a newspaper known as STAR -NEWS in the City of Wilmington
NC Division of Water Quality(DWQ)
publishing
may hold a public hearing should
Public Notice North Carolina Environmental Management Commission/NPDES Unit 1617
there be a significant degree of
public interest. Please mail com-
Mail Service Center Raleigh, NC 27699-1617 Notice of Intent to Issue a NPDES Wastewater
ments and/or information requests
to DWQ at the above address. In-
Permit The North Carolina Environmental Management Commission proposes to issue a
terested persons may visit the DWQ
at 512 N. Salisbury Street, Raleigh,
NPDE
NC to review information on file.
Additional information on NPDES
permits and this notice may be
found on our website: '
http://portal.ncdenr.org/web/wq/swplps/npdes/
calendar
or by calling [phone].
Nuclear Fuel- Americas LLC
Global
has requested renewal of permit
was inserted in the aforesaid newspaper in space, and on dates as follows:
NC0001228 for Global Nuclear Fuel -
Americas LLC facility in New Hano-
ver County. This permitted dis-
charge is treated process and do-
mestic wastewater to the Northeast
Cape Fear River in the Cape Fear
River Basin.
Brunswick County has Napp lied to
NPDES CO057533
And at the time of such publication Star -News was a newspaper meeting all the requirements and
renew permit
for the Hood Creek WTP, Butler
Ba-
qualifications prescribed b Sec. No. 1-597 G.S. of N.C.
q P Y
Road, Leland, Cape Fear River
sin. Currently, total residual chlo-
Total Iron
`*ine, Total Aluminum and
water -quality limited.
Title: Controller �a`,% �icl,f®ep'`�aso,
Sworn or affirmed to, and subscribed before me this ;'i,
`f1 , A.D., zo t t (n'
In Testimony Whereof, I have hereunto set my hand and affixed my official seal, the day ands
year aforesaid.
'` ,��e Yam— � ©`�'A•'�� r"'��"s`' s
aartz,.
My commission expires day of , 20_ i11y COMMISSIONEXPIRES9112012
Upon reading the aforegoing affidavit with the advertisement thereto annexed it is adjudged by the Court that the said
publication was duly and properly made and that the summons has been duly and legally served on the defendant(s).
This day of
Clerk of Superior Court
MAIL TO:

Corporon, Joe
From: Hunkele, Dean
Sent: Monday, May 02, 2011 4:57 PM
To: Corporon, Joe; Hennessy, John
Subject: RE: Hood Crk WTP Renewal App (NC0057533)
Attachments: 15A NCAC 213 0506 Signing Authority.pdf
Joe,
Got your message and called you back leaving VM a little while ago. Attached is the NCAC
governing this.
JerryPierc i delegated to sign for BC as its PU Director and is in BIMS that way —he is signing the
DMRs for g>
Is t and not the ORC/superintendent.
Dean Hunkele, Senior Environmen_ta�,Specialist
Wilmington Regional Office
Division of Water Quality, Surface Water Protection ction
http://www.ncwaterguality.org/
Direct Phone: [phone]
Main Phone: [phone]
Fax: [phone]
Address: 127 Cardinal Drive Ext
Wilmington, NC 28405-3845
To report a SSO, WWTP Bypass, or Spill after hours, holidays, or weekends
call The NC Division of Emergency Management @ 1-800-858-0368
E-mail correspondence to and from this address may be subject to the
North Carolina Public Records Law and may be disclosed to third parties.
From: Hunkele, Dean
Sent: Friday, April 29, 2011 11:37 AM
To: Corporon, Joe; Hennessy, John
Cc: Willis, Linda
Subject: Hood Crk WTP Renewal App (NC0057533)
Joe/John,
1

This application was signed by the plant ORC & Superintendent and he is not delegated to do so.
These and any applications need to be pre -reviewed for completeness by review staff before
administrative staff enters them into the system.
Dean Hunkele, Senior Environmental Specialist
Wilmington Regional Office
Division of Water Quality, Surface Water Protection Section
http://www.ncwaterguality.org/
Direct Phone: [phone]
Main Phone: [phone]
Fax: [phone]
Address: 127 Cardinal Drive Ext
Wilmington, NC 28405-3845
To report a SSO, WWTP Bypass, or Spill after hours, holidays, or weekends
call The NC Division of Emergency Management @ 1-800-858-0368
E-mail correspondence to and from this address may be subiect to the
North Carolina Public Records Law and may be disclosed to third parties.

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment -plants
Mail the complete application to:
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number NCO057533
If you are completing this form in computer use the TAB key or the up - down arrows to move from one,
field to the next. To check the boxes, click your mouse on top of the box. Otherwise, please print or type.
1. Contact Information:
Owner Name
Brunswick County
Facility Name
Northwest WTP- Hood Creek
Mailing Address
PO Box 249
City
Bolivia
State / Zip Code
North Carolina, 28422
Telephone Number
910- 371-3490
Fax Number
910-371-5755
e-mail Address
[e-mail]
2. Location of facility producing discharge:
Check here if same as above
Street Address or State Road 4091 Butler Rd.
City- Leland -
State / Zip Code North Carolina, 28451
County Brunswick
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 ORC)
Name Brunswick County Public Utilities Department
Mailing Address PO Box 249
City Bolivia
e
State / Zip Code North Carolina, 28422
Telephone Number ( 910 ) 253-2431 I-M
b
Fax Number ( 910) 253-2581
4. Ownership Status: Federal State Private
Public i
Page 1 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION - SHORT FORM C - WTP
For discharges associated with water treatment plants
5. Type of treatment plant:
Conventional (Includes coagulation, flocculation, and sedimentation, usually followed by
filtration and disinfectioni)
Ion Exchange (Sodium Cycle Cationic ion exchange)
Green Sand Filter (No sodium recharge)
Membrane Technology (RO, nanofiltration)
Check here if the treatment process also uses a water softener
6. Description of source water(s) (i.e. groundwater, surface water)
Surface water from the Cape Fear River
7. Describe the treatment process(es) for the raw water:
Predisinfection or powdered activated carbon followed by coagulation with aluminum
salts, then filtration in dual media filters. Sodium hydroxide for pH adjustment, followed
by orthophosphate and fluoride. Final step is disinfection with chlorine and ammonia as
it is pumped out of the facility to the distribution system.
8. Describe the wastewater and the treatment process(es) for wastewater generated by the
facility: Waste is generated in the clarifiers and during filter backwash. Wastewater travels
by gravity to a settling lagoon, then sludge and supernate are pulled through a pump
station to a thickener/clarifier unit that may or may not have polymer applied.
Supernatant then flows over a weir and dechlorinating agent is flow paced to this point,
from here water flows by gravity to the outfall. Sludge collected in the thickener unit is
pulled by pumps to a 2 meter beltpress operated by a contractor, currently. SynaGro Inc.
Sludge is dewatered and hauled to a composting facility.
9. Number of separate discharge points: one
Outfall Identification number(s) 001
10. Frequency of discharge: Continuous Intermittent
If intermittent:
Days per week discharge occurs: upto 7days Duration: 0-24hr_
11. Plant design potable flowrate 24 MGD
Backwash or reject flow <4 MGD
12. Name of receiving stream(s) (Provide a map showing the exact location of each outfall, including
latitude and longitude): Hood Creek
Page 2 of 3 C-WTP 03/05

NPDES PERMIT APPLICATION SHORT FORM C - WTP
For discharges associated with water treatment plants
13. Please list all water treatment additives, including cleaning chemicals or disinfection
treatments, that have the potential to be discharged.
50% sodium hydroxide, 36% orthophosphate, aluminum salts (polyaluminumchloride)
solutions, powdered activated carbon solutions, sodium silica fluoride solutions, bleach type
solutions, calcium-thiophosphate, cationic -polymer solutions.
14. Is this facility located on Indian country? (check one)
Yes No
15. Additional Information:
> Provide a schematic of flow through the facility, include flow volumes at all points in
the treatment process, .and point of addition of chemicals.
> Solids Handling Plan
16. NEW Applicants
In needed in addition to items 1-15:
> New applicants must contact a permit coordinator with the NCDENR Customer Service
Center.
Was the Customer Service Center contacted? Yes No
> Analyses of source water collected
Engineering Alternative Analysis
Discharges from Ion Exchange and Reverse Osmosis plants shall be evaluated using a
water quality model.
17. 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.
Printed name
Signature of
Title
Date
- /,� - 20
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.)
Page 3 of 3 C-WTP 03/05

24MGD
SO1Northwest WTP
LCFWSA Chlorine Dioxide or
Raw Water
E01 Sample
Entry Point
Distribution
System
AX 18
Caustic,
Chlorine
Ammonia
Surge Tank
Raw Water
Chlorine
Dioxide
Flash
Mix
Filters: + Filters
1 ` 12MG 12MG 1 4
3 2 2 . 3:
High Service
Pump Room
Fluoride
Phosphate
Caustic
24MGD
PAX 18
Bulk Chem. Storage

Northwest WTP Wastewater Facilities
Filter Backwash, clarifier blowdown discharge
0.180MG Sludge
Thickener
Discharge Flow Meter Vault
Calcium
Thiosulfate
MGD
To Hoods Creek

Solids Handling Plan
S4JtCK Cp��1,� PO BOX 249
COUNTII O °+, BOLIVIA, NC 28422
BRUNSWICK `�,�i ,, (91 0) 371-3490
PUBLIC UTILITIES DEPARTMENT % !j (91 O) 371-5755 FAX
SURFACE WATER TREATMENT
DIVISION �hyk rh DER
January 7, 2011
DWQ- Aquifer Protection Section
1636 Mail Service Center
Raleigh, N.C. 27699-1636
To: E.D. Hardee, Aquifer Protection Section
RE: Annual Monitoring Report for W00018351
Dewatering, hauling, and disposal of water treatment plant residuals were
contracted out to Synagro Inc. under their permit # WQ0006816
from January 2010 to December 2010. Synagro Inc. hauled dewatered solids to
McGill Environmental of Harrells, NC.
If you have any questions regarding this information please give me a call.
Sincerely,_
Glenn Walker
ORC/Superintendent
cc: Jerry Pierce, Public Utilities Director