NC0023973_Permit (Issuance)_20040213

NPDES DOCIMENT SCANNING: COVER SHEET
NC0023973
Wilmington Southside WWTP
NPDES Permit:
Document Type:
'Permit Issuance)
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Technical Correction
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
February 13, 2004
This document is printed on reuse paper - iignore any
eon -tent on the reverse side

0
C/)
Michael F. Easley, Governor
State of North Carolina
William G. Ross, Jr., Secretary
Department of Environment and Natural Resources
Alan W. Klimek, P.E., Director
Division of Water Quality
February 13, 2004
Mr. Hugh T. Caldwell, P.E.
Director of Public Utilities
City of Wilmington
P.O. Box 1810 ,
Wilmington, North Carolina.' 284d-ji
Subject: Issuance of NPDES Permit NC0023973
M'Kean Maffitt (Southside) WWTP
New Hanover County
Dear Mr. Caldwell:
The Division of Water Quality (the Division) has approved your application to renew the City of Wilmington's
NPDES discharge permit for the M'Kean Maffitt (Southside) Wastewater Treatment Plant (WWTP) and is
hereby forwarding the subject permit. This permit is issued pursuant to the requirements of North Carolina
General Statute 143-215.1 and the Memorandum of Agreement between North Carolina and the U.S.
Environmental Protection Agency dated May 9, 1994, or as subsequently amended.
Your final permit includes several changes from the previous permit.
• The monitoring frequencies for some parameters have been increased to be consistent with state permitting
requirements for Class IV wastewater treatment facilities (T15A NCAC 02B .0500 and supplemental
guidance). In particular, note that the monitoring frequency for ammonia has been increased from Weekly to
3/Week.
• Monitoring requirements for total zinc and total silver have been added to the permit with a 2/Month
frequency. The change is based on our re-evaluation of the facility's effluent data, including the City's
corrections.
• The Division has removed the "Free Cyanide" monitoring and associated permit Special Condition that
were proposed in the draft permit. This revision is based on new cyanide data provided by the permittee
indicating improvements in sample -preparation and analytical protocol, and the fact that cyanide has not
been detected during the last two years.
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 within thirty (30) days after receiving this letter.
Your request must be in the form of a written petition conforming to Chapter 150B of the North Carolina
General Statutes, and must be filed with the office of Administrative Hearings, 6714 Mail Service Center,
Raleigh, North Carolina 27699-6714. Unless such a demand is made, this permit shall be final and binding.
NCDENR
North Carolina Division of Water Quality 1617 Mail Service Center Raleigh, NC 27699-1617 [phone] Customer Service
1 800 623-7748

City of Wilmington
M'Kean Maffitt (Southside) WWTP
Issuance of NPDES Permit NC0023973
Page 2
This permit is not transferable except after notifying the Division of Water Quality. The Division may require
modification, or revocation and re -issuance of this permit. Please notice 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 be of further service, please contact Joe Corporon by e-mail at
[e-mail] or call [phone], extension 597.
Respectfully,
ORIGINAL SIGNED �BY
Michael E. Temp
Alan W. Klimek, P.E.
cc: Central Files
Wilmington Regional Office, Water Quality Section
NPDES Unit
EPA Region 4
Aquatic Toxicology Unit
7

t
Permit NC0023973
STATE OF NORTH CAROLINA
DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES
DIVISION OF WATER QUALITY
PERMIT
TO DISCHARGE WASTEWATER UNDER THE
NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM
(NPDES)
In compliance with the provision of North Carolina General Statute 143-215.1, other lawful standards and
regulations promulgated and adopted by the North Carolina Environmental Management Commission, and
the Federal Water Pollution Control Act, as amended, the
City of Wilmington
is hereby authorized to discharge wastewater from outfalls located at the
M'Kean Maffitt (Southside) Wastewater Treatment Plant
3436 River Road
Wilmington
New Hanover County
to receiving waters designated as the Cape Fear River within the Cape Fear River Basin in accordance with
effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III, and IV hereof.
This permit shall become effective March 1, 2004.
This permit and authorization to discharge shall expire at midnight on December 31, 2006.
Signed this day February 13, 2004.
ORIGINAL SIGNED BY
Michael E. Templeton
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0023973
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.
The City of Wilmington is hereby authorized to:
1. Continue discharging treated domestic and industrial wastewater from the existing 12.0 MGD
wastewater treatment facility that includes the following components:
• Force -main interceptor vault
• Standby manual bar screen and comminuter
• Dual (2) mechanical bar screens, each with grit removal and storage unit
• Splitter box
• Dual (2) primary clarifiers
• Dual (2) trickling filters (180 feet diameter)
• Short-term aeration basin
• Splitter box
• Three (3) screw lift pumps
• Chlorine disinfection facilities
• Dual (2) secondary clarifiers
• Return activated sludge pumping station
• Flash mixer for chlorine gas
• Dual (2) chlorine contact chambers
• Outfall structure with flow meter
• Lift -station generator, automatically activated (with back up generators)
• Primary and waste -activated sludge pump stations
• Sludge: two gravity -belt thickeners, two filter presses; four digesters (3 hot); alkaline
stabilization, covered storage area
• Solids land application
This facility is located at the M'Kean Maffitt (Southside) Wastewater Treatment Plant (3436
River Road, Wilmington) in New Hanover County.
rj Iri!r; 7: T
2. Discharge from said treatment facility through Outfall 001 at the location specified on the attached map
into the Cape Fear River, currently a Class SC stream in the Cape Fear River Basin.

City of Wilmington
M'Kean Maffitt (Southside) WWTP
Receiving Stream: Cape Fear River Drainage Basin: . Cape Fear River Basin
Latitude: 34° 09' 56" N Sub -Basin: 03-06-17
Longitude: 77° 56' 56" W PemrittedF7ow: 12.0 MGD
Stream Class: SC Grid/Quad: K 27 NW / Wilmington, NC
NPDES Permit No. NC0023973
New Hanover County

Permit NC0023973
A. (1) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on March 1, 2004 and lasting until expiration, the permittee is authorized to discharge treated wastewater from
Outfall 001. Such discharges shall be limited and monitored by the Permittee as specified below:
PARAMETER
EFFLUENT `'
LIMITATIONS
MONITORING
REQUIREMENTS
Sample
Type
1
Sample Location
Monthly
Average
Weekly
Average
Measurement
Frequency
Flow
12.0 MGD
Continuous
Recording
Influent or Effluent
BOD, 5-day, 20°C 2
30.0 mglL
45.0 mg/L
Daily
Composite
Influent and Effluent
Total Suspended Solids 2
30.0 mglL
45.0 mg/L
Daily
Composite
Influent and Effluent
NH3 as N
3/Week
Composite
Effluent
Fecal Coliform 3
(geometric mean)
200/100 mL
400/100 mL
Daily
Grab
Effluent
Total Residual Chlorine 4
Daily
Grab
Effluent
Temperature
Daily
Grab
Effluent
pH 5
Daily
Grab
Effluent
Dissolved Oxygen
Daily
Grab
Effluent
Total Phosphorus
Monthly
Composite
Effluent
Total Nitrogen
(NO2-N+ NO3-N+ TKN)
Monthly
Composite
Effluent
Total Cyanide 6
2/Month
Composite
Effluent
Total Copper
2/Month
Composite
Effluent
Total Silver
2/Month
Composite
Effluent
Total Zinc
2/Month
Composite
Effluent
Acute Toxicity 7
Quarterly
Composite
Effluent
Dissolved Oxygen 8
Variable 9
Grab
U, D
Temperature 8
Variable 9
Grab
U, D
Footnotes:
1. U = upstream at a point equidistant between the radio tower due north of the WWTP and the northern end of the
dredge spoil island immediately east of the outfall. D = downstream at a point equidistant between the mouth of
Barnards Creek and the southern end of the dredge spoil island immediately east of the outfall.
2. The monthly average effluent BOD5 and Total Suspended Solids concentrations shall not exceed 15 % of the
respective influent value (i.e., 85% removal is required).
3. Calculate Fecal Coliform using the geometric mean (see procedure Part II, Section A , Paragraph 9b)
4. Total Residual Chlorine (TRC) monitoring shall apply only if chlorine is used. With the adoption of a TRC
Standard for saltwater, this permit may be reopened to include a TRC limit.
5. pH shall not fall below 6.8 nor exceed 8.5 standard units.
6. Total Cyanide: Levels reported below 10 Ag/L will be considered zero for permit compliance purposes.
7. Acute Toxicity — (Daphnia pulex, 24-hour) No significant mortality @ 90 %, March, June, September, and
December [see Special Condition, Section A. (2.)]
8. Stream Sampling — The permittee has deferred receiving -stream sampling to the Lower Cape Fear River
Association by Memorandum of Agreement (MOA). Should this MOA terminate for any reason, the Permittee shall
immediately inform the Division in writing and immediately resume instream monitoring in accordance with this
permit.
9. Variable Frequency — Stream samples shall be collected 3/week during the summer months of June, July, August,
and September; samples shall be collected Weekly during the rest of the year.
Units: mg/L = milligrams per liter MGD = million gallons per day
BOD = Biochemical Oxygen Demand mL = milliliters
Discharge shall contain no floating solids or foam visible in other than trace amounts.

Permit NC0023973
A. (2) ACUTE TOXICITY PASS/FAIL PERMIT LIMIT (Quarterly)
The permittee shall conduct acute toxicity tests on a quarterly basis using protocols defined in the North
Carolina Procedure Document entitled "Pass/Fail Methodology For Determining Acute Toxicity In A Single
Effluent Concentration" (Revised July, 1992 or subsequent versions). The monitoring shall be performed as
a Daphnia pulex 24-hour static test. The effluent concentration at which there may be at no time
significant acute mortality is 90% (defined as treatment two in the procedure document). Effluent samples
for self -monitoring purposes must be obtained during representative effluent discharge below all waste
treatment. The tests will be performed during the months of March, June, September, and December.
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 TGE3D.
Additionally, DWQ Form AT-2 (original) is to be sent to the following address:
North Carolina Division of Water Quality
Attention: Environmental Sciences Branch
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
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 Branch at the address cited above.
Should any single quarterly monitoring indicate a failure to meet specified limits, then monthly monitoring
will begin immediately until such time that a single test is passed. Upon passing, this monthly test
requirement will revert to quarterly in the months specified above.
Should the permittee fail to monitor during a month in which toxicity monitoring is required, then monthly
monitoring will begin immediately until such time that a single test is passed. Upon passing, this monthly
test requirement will revert to quarterly in the months specified above.
Should any test data from either these monitoring requirements 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 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.

NPDES PERMIT
DRAFT / FINAL
FILE CONTENTS:
Lett,side:
New Tracking Slip.
O Old Tracking Slip.
Right side:
❑ Streamline Package Sheet
IBK Draft Permit Cover Letter.
Er Draft Permit
Er Facility Map
IY Fact Sheet.
l� ermit Writer's Notes
GY Staff Report from Region
Q Old Permit
IS" Permit Application.
IBA Acknowledgement Letter
❑ /Permittee Responses
Waste Load Allocation
CHECK LIST w�`�
Facility / (<rW i thFR (sOOT(+S(Pr W 1 p
Permit No.
IP
�-3
NPDES Permit Writer:
ajor changes permit)
effluent sheets, .pecial conditions)
(E-Map: Inclu• facility; Ou 'alls; U and D sample locations)
(document permit writer's i sues and re -issue logic)
(if not in Facts Sheet -- chronology, strategy, DMR Review, RPA, etc.)
(as appropriate -- not needed if streamlined)
(Text, Effluent Sheets and Special Conditions)
(New Permit or Renewal; any additional permittee correspondence)
(for Renewal Application, from NPDES Unit)
(to acknowledgement letter, if any)
(reference date; recalculated for current action?)
(to region, only if s
(add new policy to
(order: cover, sup
tre. ined)
ummarize
ement, ma!
Note: Italics indicate special conditions not always required or applicable. /../\ U 6_6 Z
o2./A uG-&'L
13 Submitted to RFR (600---"C for Peer Review: Date --eVreL. Admin cutoff /tom 11 .
El Peer Review completed by (1` SX Date 17/Q-kre2
[°J� Permit Mailed / to CA -C (L 6410 (Regional Staff) by Date
tam Qt5 % (t242S4ALC WIA-11--
❑- GI/Additional Regional
Office Review completed by f /, Date .
lY Additional Review byi ("�`c ((D�j initiated by Date ��
❑ Additional Review completed by (P) l L �"�y �t-� « 7A on: Date /2'r' " 2
1 Submitted to C A(`�'0'- 01 for Public Notice on c1-94 : Notice Date 9( 4
?Mc Notice System Update S i«� Z BIMS Update l(l�lk 'Z (GA1C!vrs 4L..)07 ( Ts-
NAL to Dave Goodrich for signature on 41"6 C ( erg- Letter Dated t/VC'r a
J EI Additional Review
O Additional Review
p p (lidst. fib- (`
ri 6-we orw-k-fr,c3 6k),e44-L

Re: Wilrrtington Southside -- Corrections RE: TRC / 85%...
Subject: Re: Wilmington Southside -- Corrections RE: TRC / 85% removal
From: Joe Corporon <[e-mail]>
Date: Fri, 12 Dec 2003 16:09:58 -0500
To: [e-mail]
not necessary. This will do, thanks.
[e-mail] wrote:
sounds good. Do you need a no comment letter from us?
1 of 1 12/12/2003 4:14 PM

Wilmington Southside -- Corrections RE: TRC / 85% re...
Subject: Wilmington Southside -- Corrections RE: TRC / 85% removal
From: Joe Corporon <joe.corporon @ ncmail.net>
Date: Fri, 12 Dec 2003 15:51:11 -0500
To: [e-mail]
CC: Dave Goodrich <[e-mail]>,
[e-mail], [e-mail]
Marshall, this is to confirmed our discussion and answer your final
questions.
We agree the final needs to include the 85% removal footnote. I will
add this.
About the TRC limit --
included. This permit
no saltwater limit.
Thanks for your quick
Dave Goodrich just reminded me why it's not
discharges to classified saltwater and we have
review and response.
1 of 1 12/12/2003 4:10 PM

DENR / DWQ / NPDES Unit
Addendum to FACT SHEET
FOR NPDES PERMIT DEVELOPMENT
City of Wilmington — Southside WWTP
NPDES Permit NC0023973
December 11, 2003
The Division has received new data indicating that Total Cyanide was not detected above
the laboratory test -method practical quantitation level (PQL). The new database
encompasses January 2002 through November 2003 -- all results below detection (see
attached). The permittee has further noted that "free cyanide" testing is currently not
possible because there are no laboratories that are North Carolina —certified for a "free
cyanide" wastewater test method.
Due to accuracy questions, the Division's policy is to consider all results below 10 ug/L .
to be zero for compliance purposes. The permittee has noted recent findings suggesting .
that "false positives" are possible depending on sample preparation procedures (see e-:
mail from the permittee to Division dated 10Dec03). Subsequently, having applied newly,' : • .
recommended sample -preparation and testing techniques, the permittee and their NC -
certified lab have not detected cyanide during the last two-year period.
The Division of Water Quality therefore has revised its concerns that cyanide may be
present in this facility's effluent. Consequently, the Division shall amend the Fact Sheet •
and draft permit including the Effluent Limitations and Monitoring Requirements page to
remove the Free Cyanide monitoring requirement. In follows also that the Special
Condition A. (3.) to conduct an internal study for cyanide is no longer appropriate and -
will also be deleted from the permit.
NPDES UNIT CONTACT
If you have question - ;.arding any
contact Joe Corporon (j . - .corpora
above information or on the attached permit, please
ail.net] or call [phone] ext. 597.
NAME: ,/-� DATE: /7,2)EC/3

Cyanide Values for Jan 2002 - Nov 2003
Date
M'Kean Maffiti
Jan-02
< 0.005
Feb-02
< 0.005
Mar-02
< 0.005
Apr-02
< 0.005
May-02
< 0.005
Jun-02
< 0.005
Jul-02
< 0.005
Aug-02
< 0.005
Sep-02
< 0.005
Oct-02
< 0.005
Nov-02
<0.005
Dec-02
< 0.005
Jan-03
<0.005
Feb-03
< 0.005
Mar-03
< 0.005
Apr-03
< 0.005
May-03
< 0.005
Jun-03
< 0.005
Jul-03
<0.010
Aug-03
<0.010
Sep-03
<0.010
Oct-03
<0.010
Nov-03
<0.010
Concentration (mg/L)
0.9
0.8
0.7
0.6
0.5
0.4
0.3
0.2
0.1
0
M'Kean Maffitt Cyanide Jan 2002 - Nov 2003
..................
..........................
—r—Cyanide 413
.......................................
..............
oti oL s9 59' oti 9 oti o2 A2 o o2 0o d� oo .S oo css o0 00
C s i� 4 0 ¢� ¢� ¢c r c 4 0 � m� mi mi.
a� coax mN PQ �}'° ��° �� ��F� '0" Fo F� o'°�,o'°� mF PQ �a ��� �� ooS' �o
mo l` �¢ 61, ¢ mc` ¢' S �¢ O -¢
F Q�' ) F �mQ ��o
Date
NOTE: change in PQL (Jul03) reflects refined lab procedures and regulatory requirements (see e-mail from permitte to Division dated 10Dec03).

DENR / DWQ / NPDES Unit
FACT SHEET FOR NPDES PERMIT DEVELOPMENT
NPDES Permit NC0023973
INTRODUCTION
The City of Wilmington (herein called Wilmington or the Permittee) requires a National Pollutant
Discharge Elimination System (NPDES) permit to dispose treated wastewater to surface waters of the
state. The Permittee's 5-year NPDES permit expired December 31, 2001 and they have requested
permit renewal from the Division of Water Quality (the Division). This Fact Sheet summarizes
background information and rationale used by the Division's NPDES Unit to determine permit limits
and monitoring conditions. This document also contains references to information sources relevant to
this permit renewal (superscripted numbers in order of appearance, see References).
FACILITY RECORDS REVIEW
Facility Description. Wilmington's M' Kean Maffitt (aka, Southside) Wastewater Treatment Plant
(WWTP) is a Class IV publicly owned treatment works (POTW) with advanced secondary treatment
discharging 12.0 MGD under tidal conditions (Table 1). Southside treats domestic (98 %) and
industrial (2 %) wastewater utilizing a force main interceptor vault, dual mechanical bar screens with
grit removal, dual primary clarifiers, dual trickling filters, aeration basin, three screw -lift pumps, dual
secondary clarifiers; an outfall structure with chlorine disinfection, flow meter, physical aeration and
foam control. Sludge system includes de -watering, digesters (heated) and solids land application.
Table 1.
Wilminaton's Southside WWTP
Facility Information
Applicant/Facility Name 1,2
City of Wilmington / M'Kean Maffitt (Southside) WWTP
Applicant Address 1,2
P.O Box 1810 Wilmington , NC 28402
Facility Address 1'2
3436 River Road, Wilmington, NC 28412
Permitted Flow (MGD) 1'3
12.0
Type of Waste 1'2'4
Domestic (98%) and Industrial (2%) process wastewater; Primary SIC
Code 4952; WW Code Prim. 01; Treatment Unit Code 400-3
Related Permits
Sludge: land application WQ0001271 and WQ0011869
Facility Class / Permit Status 1,2,4
Class IV, Major / Renewal
Drainage Basin / County 1'2
Cape Fear River Basin / New Hanover County
Miscellaneous
Receiving Stream 1,2,4
Cape Fear River
Regional Office
Wilmington
Stream Classification 1,5
SC
State Grid /
USGS Topo Quad
K 27 NW/
Wilmington, NC
303(d) Listed? 6
Yes
Permit Writer
Joe R. Corporon
Subbasin 5''
03-06-17
Date:
17Jun02
Drainage Area (sq. mi.)'
NA
Lat. 34° 09' 56" Long. 77° 56' 56"
Summer 7Q10 (cfs)'
Tidal
Winter 7Q10 (cfs) '
Tidal
Tidal
30Q2 (cfs)
Average Flow (cfs)'
Tidal
IWC (%) 7
NA
Fact Sheet
Renewal -- NPDES Permit NC0023973
Page 1

Waste Load Allocation (WLA). The Division prepared the last WLA for the receiving stream in
June 1996 and developed effluent limits and monitoring requirements considering discharge under
tidal conditions where in -stream waste concentration (IWC) not applicable.' The Division views
these limits and monitoring requirements appropriate for renewal except as outlined below (see
Permitting Approach and Renewal Summary).
Verifying Existing Stream Conditions. This facility discharges to the Cape Fear River,
approximately one mile downstream of its confluence with the Brunswick River. Discharge occurs in
Class SC waters located within Subbasin 03-06-17, Cape Fear River Basin.$ Cape Fear Estuary is
listed as "partially supporting" and is generally impaired due to seasonally high concentrations of
fecal coliform bacteria and seasonally low dissolved oxygen (DO). Sediments in the Cape Fear are
303(d) listed. There is also a mercury advisory for some fish species in the Cape Fear. 5
Local monitoring data supplied by the Lower Cape River Association (LCFRA) was collected at
sampling stations upstream and downstream from the discharge. Data indicate that instream dissolved
oxygen (DO) levels generally remain above the DO Standard of 5.0 mg/L to 11 or 12 mg/L except
during hurricane conditions when DO fell to approximately 1.6 mg/L in September of 1996
(Hurricane Fran) and September of 1998 (Hurricane Bonnie). In October of 1999 (Hurricane Floyd)
the DO was measured slightly higher at 2.3 mg/L.
Permitted mid -stream sample points (defaults in the event that monitoring reverts back to the
Permittee) are located upstream (U) of the discharge at Lat. 34° 30', 7", Long 77° 57' 12"; and
downstream (D) of the discharge at Lat. 34° 09' 20", Long. 77° 56' 48" (see permit map).
CORRESPONDENCE
Regional Office Staff Report. Ed Beck of the Wilmington Regional Office (WiRO) conducted an
annual facility inspection and prepared a Staff Report dated December 11, 2001. WiRO found the
facility in "very good condition" and "in compliance with the permit." WiRO noted that this facility
discharges at 70 to 75 % of permitted capacity. WiRO recommends that the NPDES Unit renew the
permit.
Division Records and Permittee's Renewal Application. The current permit originally expired on
June 30, 2001 but the Division extended it to December 31, 2001 to stagger the permit renewal
workload. Division records indicate the last Authorization to Construct (ATC) was issued on
September 25, 1995. The Division received the permittee's renewal request (Standard Form A) on
July 6, 2001. The Permittee has no plans at this time to expand the Southside WWTPconsidering its
near -future needs adequate addressed by the intended future expansion of the Northside WWTP.
Concerning Renewal Application Supplements. Because the renewal application was received on
06July01 (before 01Aug01), the Division has not requested additional Priority Pollutant Analyses
(PPA) from this facility, per agreement with EPA. However, the Division did request the Permittee's
written authorization to provide supplemental analytical data to EPA, per NC/EPA agreement. The
Division forwarded both the data and the Permittee's written authorization to EPA.
Fad Sheet
Renewal -- NPDES NC002 397 3
Page 2

COMPLIANCE REVIEW
DMR Effluent Data Review. The Division reviewed discharge flow for 36 months (1998, 2000,
and 2001) as reported in Discharge Monitoring Reports (DMRs). Total flow for this time period
averaged about 8.4 MGD or about 70 % of permitted capacity.9 Southside's DMRs appear regular,
thorough, and complete.
Instream Monitoring Review. Under Memorandum of Agreement, the Lower Cape Fear River
Association assumed responsibility for instream monitoring, effective November 15, 1996.
Subsequently, the permittee discontinued receiving -stream sampling.
Whole Effluent Toxicity (WET) Test. Quarterly monitoring results for Acute Whole Effluent
Toxicity (WET) testing indicates "pass" for the last 22 quarters (January 1997 through June 2002).
Notices of Violation (NOVs) and Penalty Assessment. The Division records indicate no penalty
assessments during this permit cycle. 10,11 NOVs were issued for exceeding the BOD permit limit in
February and June of 1999, and in January of 2000 (values exceeded limits by less than 10 %). The
Permittee was also Noticed for a sewer -collection system violations in September of 2000.
Effluent Chlorine_ Wilmington Southside monitors for Total Residual Chlorine (TRC) but is not
currently restricted by a TRC limit. Furthermore, Southside does not de -chlorinate its effluent.4
Effluent TRC concentrations are reported in µg/L averaging less than 700 µg/L over 48 months with
monthly maximum at 1,042 µg/L TRC,9 and the potential impact may be mitigated by tides. In
keeping with the Division's policy of not adding TRC limits except for new or expanding discharges,
a TRC limit will not be imposed at this time. However, a note will be added to the cover letter
warning of an impending TRC limit to be added with the adoption of a TRC Standard (in progress).
Pretreatment Compliance. This NPDES permit requires Southside to maintain a Pretreatment
Program under federal 40CFR 403 and state 15A NCAC 2H.0900 regulations. Southside WWTP
currently services two Significant Industrial Users (SIUs), Table 2.
Table 2.
Significant Industrial Users (SIUs)
SIU
Raw Materials
Units
Quantity
New Hanover Regional
Medical Center
Laundry, X-ray, Food
Services, Laboratory
*
*
National Linen Service
Soiled Laundry
Lbs./day
40,000 to 50,000
* uncharacterized
Fact Sheet
Renewal -- NPDES NC0023973
Page 3

PERMITTING APPROACH
Dilution under Tidal Conditions. This renewal considers discharge to the Cape Fear River estuary, a
receiving stream influenced by wind and ocean tides: Under tidal conditions, stream -flow parameters (7Q10
and 30Q2) are not readily available, therefore previous permits did not include water -quality limited Weekly
Averages. Similarly, past permits have included monitoring only for metals and toxicants, but have not
required limits. The Division assumes that considerable dilution is available to protect against the chronic
impacts of this discharge and notes a positive acute WET Testing history ("pass" for 22 quarters). However
for this renewal, the Division has further evaluated this effluent for the potential acute impacts of metals and
toxicants.
Metals and Toxicant Renewal Criteria — Pollutants of Concern (POCs). To establish POCs, the Division
reviewed the permit application, five years of discharge monitoring reports (1997 through 2001), pretreatment
data, and the Basin Plan.5 The Division then used the standard Reasonable Potential Analysis (RPA) to
calculate a maximum predicted concentration for each POC. Each maximum was then compared to the POC's
Final Acute Value (t/ FAV) for saltwater (Table 3). If by this method, a POC showed reasonable potential to
exceed its t/ FAV, the Division included a permit limit as a Daily Maximum to protect the receiving stream
against acute toxic affects. However, current data do not suggest a need for Daily Maximums. Monitoring
frequencies were increased to 2/Monthly according to current Division permitting guidance for a Class IV
facility (15A: 02B.0500 and supplements). Additional considerations are addressed below.
Table 3.
Southside WWTP — Acute RPA Review Summary and Renewal Actions
Parameter
Samples
(n)
Hits
: (n)
Maximum
Predicted :
1/2 FAV
(Saltwater)
RP 1
y/n
Comments /
Renewal Action
Arsenic
37
9
38.8 µg/L
69 µg/L
No
No change to permit
Cadmium
34
1
3.4 µg/L
42.0 µg/L
No
No change to permit
Chromium
29
1
6.3 µg/L
None available
No
No change to permit
Copper
48
48
25.4 µg/L
5.8 µg/L
Yes
Action Level Standard: no
toxicity problem, therefore no
limit. Increased monitoring to
2/Monthly
Total
Cyanide
48
22
157.0 µg/L
None available2
No
Remains a POC. Added free
cyanide; increased monitoring to
2/Monthly, no limits
Lead
30
1
2.5 µg/L
221.0 µg/L
No
No change to permit
Mercury
22
0
0.10 µg/L
1.8 µg/L
No
No change to permit
Nickel
33
0
5.0 µg/L
75.0 µg/L
No
No change to permit
Silver
33
5
3.54 µg/L
1.9 µg/L
Yes
Action Level Standard: no
toxicity problem, therefore no
limit. Added monitoring
2/Monthly
Zinc
29
23
543.1 µg/L
95.0 µg/L
Yes
Action Level Standard: no
toxicity problem, therefore no
limit. Added monitoring
2/Monthly
1. RP = data indicate "reasonable potential" to exceed l FAV.
2. Cyanide -- Recommend 1h FAV (CMC) is 1.0 µg/L expressed as free cyanide. Effluent data are expressed as total cyanide.
Fact Sheet
Renewal -- NPDES NC0023973
Page 4

TRC. In keeping with the adoption of a new Standard for Total Residual Chlorine (TRC) currently in
progress, the Division will advise this major municipal discharger that a TRC limit will likely be added to
the permit at next renewal.
Mercury. Mercury data suggest no reasonable potential to exceed the acute criterion. Effluent monitoring
is currently relegated to the pretreatment program. Considering that the acute criterion of 1.8 µg/L is well
above the current test -method detection limit of 0.2 µg/L, the permittee will not be required to employ
clean -sampling techniques (EPA Method 1631) to document acute impact compliance. It follows then, that
text regarding the future need for Method 1631 has not been addressed for this renewal, per agreement with
the EPA.
Cyanide — Southside's current data is expressed as "total cyanide" while the recommended acute criterion
for cyanide is expressed as "free cyanide." Therefore, an evaluation of acute impacts is inconclusive. To
provide a database for the RPA, the Division has added free cyanide to the permit. Considering that total
cyanide was detected in almost half of reported data (22 of 48 samples), the Division has added a Special
Condition to the permit. This will require Southside to evaluate sources and concentrations of cyanide.
Findings, conclusions, and recommendations for corrective action (if any) shall be submitted to the NPDES
Unit concurrent with the application to renew this permit [see Special Condition A. (3.)].
Ammonia and Dissolved Oxygen (DO). Because of dissolved -oxygen concerns in the estuary described in
the Basin Plan, 5 the Division will continue Weekly effluent DO monitoring. Monitoring for ammonia was
increased from Weekly to 3/Week consistent with Class IV facility requirements. This municipality does
not require ammonia limits. Therefore, the Division will not include a note to the Permittee warning of a
future need for ammonia Weekly Averages, as requested by EPA for this renewal.
Permitting Approach Summary
Effluent Monitoring
• Application: predates 01Aug01, therefore no PPA supplement.
• RPA: conducted to establish acute impacts only (tidal conditions).
• Note Added to Cover Letter: TRC Standard and limit likely at renewal.
• Ammonia: Future Weekly Average limits not required because permit does not have ammonia limits.
• Mercury Method 1631: not required (potential permit limit above current test method ML).
Added Silver and Zinc monitoring (2/Month), no limits.
Added free cyanide monitoring (2/Month), no limit.
Instream Monitoring Changes
Previous Requirements:
Dissolved Oxygen (DO)
Temperature
Monitoring Deferred to the Lower Cape Fear River
Basin Association (November 15,1996 under MOA).
Recommended Changes: No changes recommended.
Fact. Sheet
Renewal -- NPDES NC0023973
Page 5

PROPOSED SCHEDULE OF ISSUANCE
Draft Permit to Public Notice:
Permit Scheduled to Issue:
August 21, 2002.
October 11, 2002
NPDES UNIT CONTACT
If you have questions ding . , of the above information or on the attached permit, please
contact Joe Corpor. [jo:.corp. o ,��ncmail.net] or call [phone] ext. 597.
NAME: DATE: )ri-C-)C I
REFERE ► CES
'7b IA L.J f eiA/ fCkft.ie Fre--c= NA F( 9°d'4cW.
1. 2►.11 NPDES Permit Application Standard Form A, Wilmington's M'Kean Maffitt (Southside) WWTP,
received July 6, 2001.
2. 2001. NPDES Regional Staff Report and Recommendations for the Renewal, for Wilmington's M' Kean
Maffitt (Southside) WWTP, NPDES Permit No. NC0023973, Wilmington Regional Office,
December 11.
3. 2000. Active NPDES Permits List, North Carolina Division of Water Quality, NPDES Unit, on the web
at http:/h2o.enr.state.nc.us/NPDES/NPDESweb.html.
4. 1996. NPDES Permit No.NC0023973. Issued to the City of Wilmington for the M'Kean Maffitt
(Southside) WWTP, expired October 31, 2001 (extended it to December 31, 2001 to stagger the
permit renewal workload. Copies obtained through The Division of Water Quality, Central Files,
Archdale Building, 512 N. Salisbury St., Raleigh, North Carolina.
5. 2000. Cape Fear Basinwide Water Ouality Plan. North Carolina Division of Water Quality, Water
Quality Section, July.
6. 2000. 303(d) List of North Carolina Impaired Waters - Draft. North Carolina Division of Water Quality,
Water Quality Section. Copies obtained through Planning Branch, Archdale Building, 512 N.
Salisbury St., Raleigh, North Carolina.
7. 1996. NPDES Waste Load Allocation Work Sheet, NPDES Permit No. NC0023973 Wilmington
Southside WWTP, (reviewed by Carla Sanderson), June 4.
8. 2002. NPDES Whole Effluent Toxicity Test Results, January 1997 through April 2002, DENR,
Environmental Services Branch, Aquatic Toxicology Unit, June 20.
9. 1998-2001. Discharge Monitoring Reports (DMR) for Effluent (DEM Form MR-1), NPDES NC0023973
for Wilmington's Southside WWTP.
10. 2002. Personal Communication, Assessment History for Wilmington's Southside WWTP, NPDES
NC0023973, Bob Sledge (DWQ Compliance and Enforcement Unit) to Joe Corporon (NPDES
Unit), July 8.
11. 1998-2001. Basinwide Information Management System (BIMS), BIMS Reports, Total Violations
Reported under Limit Violation, Monitoring Violations, and Reporting Violations, for
Wilmington's Southside WWTP, NPDES NC0023973.
12. 2002. Personal Communication, Verification of LTMP Data and Laboratory Detection Limits Southside
WWTP, NC0023973, Dolores Bradshaw (City of Wilmington) to Joe Corporon (NPDES Unit),
July 9.
Fact Sized
Renewal -- NPDES NC0023973
Page 6

AFFIDAVIT OF PUBLICATION
STATE OF NORTH CAROLINA
COUNTY OF NEW HANOVER
PUBLIC NOTICE
STATE OF -
NORTH CAROLINA
ENVIRONMENTAL
MANAGEMENT
COMMISSION/NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
NOTIFICATION OF INTENT
TO ISSUE A NPDES
WASTEWATER PERMIT
On the basis of thorough
staff review and applica-
tion of NC General Stat-
ute 143.21. Public Law
92-500 and other lawful
standards and regula-
tions, the North Carolina
Environmental Manage-
ment Commission pro-
poses to issue a National
Pollutant' Discharge
Elimination . System
(NPDES) wastewater dis-
charge permit tothe per-
son(s) listed below effec-
tive 45 days from the
publish date of this no-
tice.
Written comments re-
garding, the proposed
permit will be accepted
-until 30 days after the
publish date of this no-
tice. All comments . re-
ceived prior to that date
are considered in the final
determinations regarding
the proposed permit. The
Director of the NC Divi-
sion of Water Quality may
decide to hold a public
meeting for the proposed
permit should the Divi-
sion receive a significant
degree of public interest.
•
Copies of the draft permit
and other supporting in-
formation on file used to
determine conditions
present in the draft per-
mit are available upon
req lest and payment of
the costs of reproduction.
Mail comments and /or
requests for information
to the NC Division of Wa-
ter Quality at the above
address or call Ms.
Christie Jackson at
[phone], extension
538. Please include the
NPDES permit number
(attached) in any com-
munication. Interested
persons may also visit
the Division of Water
Quality at 512 N. Salis-
bury Street, Raleigh, NC
27604-1148 between the
_ hours of 8:00 a.m. and
— 5:00 p.m. to review in-
formation on file.
Before the undersigned, a Notary Public of Said County and State,
DIANE P. KEENAN
Who, being duly sworn or affirmed, according to the law, says that he/she is
CLASSIFIED ADVERTISING MANAGER
of THE WILMINGTON STAR -NEWS, INC., a corporation organized and doing business under
the Laws of the State of North Carolina, and publishing a newspaper known as WILMINGTON
MORNING STAR & SUNDAY STAR -NEWS in the City of Wilmington
PUBLIC NOTICE STATE OF NORTH CAROLINA ENVIRONMENTAL MANAGEMENT
COMMISSION/NPDES Unit 1617 Mail Service Center Raleigh, NC 27699-1617
NOTIFICATION OF INTENT TO ISSUE A NPDES WASTEWATER PERMIT On the basis
of thorough staff review and application of NC
was inserted in the aforesaid newspaper, in space, and on dates as follows:
/27:Ix �'I►
And at the time of such publication Wilmington Star -News was a newspaper meeting all the
requirements and qualifications prescribed by Sec. No. 1-597. G.S. of N.C.
r '
Title: CLASSIFJ) AADV R MGR
med to, and s •scribebefore me this day of
, A.D.
In3'estimony Whereof, I have hereunto seamy hand and affixed my official seal. the day and
year aforesaid. /
•� •tip L/t'��J `� � �i
My commission expires /" day of (,t , 2006
Notary Public
NPDES Permit Number aforegoing affidavit with the advertisement thereto annexed it is adjudged by the Court that the said
pub/ So roperly made, and that the summons has been duly and legally served on the defendant(s).
1810, Wilmington, NC
This 28402rmirenewallifor a fa f
cllity located In New '
Hanover County dis-
charging treated waste-
water Into Cape Fear
River, In the Cape Fear
River Basin. Currently fe-
cal coliforn bacteria area
water quality limited. This
discharge may affect fu-
ture allocations In this
portion of the receiving
stream.
Clerk of Superior Court

Draft Permit Wilmington Southside
Subject: Draft Permit Wilmington Southside
Date: Thu, 22 Aug 2002 11:23:50 -0400
From: Ed Beck <[e-mail]>
To: Joe Corporon <[e-mail]>
Joe
The draft permit appears to be well done with no surprises. I have only
a few very minor comments. On the effluent limits page and again on
page two of the fact sheet reference should be made to Lower Cape Fear
River Program rather than association. On the first page of the fact
sheet, the new designation number for the Wilmington Topo map is T52.
Other than these picky comments it looks great.
Thanks
Ed Beck
Ed Beck <[e-mail]>
1 of 1 9/6/02 7:58 AM

Re: Northside Draft Permits -- RPA Database Review NC0023965
Subject: Re: NorthsidDraft Permits -- RPA Database Review NC0023965
Date: Tue, 27 Aug 2002 11:45:06 -0400
From: [e-mail]
To: Joe Corporon <[e-mail]>
CC: "[e-mail]" <[e-mail]>
I am presently working on the Northside Plant's database. I'll try to
expedite completion for Hugh's review and subsequent submittal to you.
Thanks.
Joe Corporon
<joe.corporon@ncm
ail.net>
08/27/02 10:47 AM
Ms Ellis; Mr. Calwell:
To: "[e-mail].u.
"[e-mail]" <H-
cc:
Subject: Northside Draft Permits -- R.
I'm reviewing Wilmington's recent comments on the Draft permit (20Aug).
These contain a question about DWQ's database used for the "reasonable
potential analysis" (RPA). Aside from unresolved dilution questions, I
assume Wilmington feels a revised database may impact the RPA. Let's
start with the database.
Could you please review the XL file (provided to Pam on 15Aug02) and
return me a corrected version? You may insert rows for new data as you
see fit (please include dates in Column E). Perhaps it would be prudent
to place corrections to a different column (maybe M?) for each parameter
needing revision.
Similarly, you should review and correct the database for the Southside
plant as well, because the RPA strategy is the same. However, please
send me Northside first. Feel free to call me if you have questions
(919-733-5083-597).
Thanks for your prompt attention,
_Joe Corporon
1 of 1 9/6/02 8:52 AM

Re: DRAFT. Permit Review -- Wilmington Southside WWTP, NC0023973
Subject: Re: DRAFT Permit Review -- Wilmington Southside WWTP, NC0023973
Date: Wed, 21 Aug 2002 10:57:28 -0400
From: Matt Matthews <[e-mail]>
Organization: NC DENR DWQ
To: Joe Corporon <[e-mail]>
Joe,
I've reviewed the subject draft permit and have no comments.
Thanks for the opportunity to review,
Matt
Joe Corporon wrote:
>Gentlemen,
>Attached, please find the Draft Permit and Fact Sheet for your review
>and comment. Assumptions and strategy for renewal of this permit are
>similar to Wilmington Northside in that they consider discharge to tidal
>waters.
>Thanks in advance for your input.
>--Joe
Matt Matthews
NC DENR/Division of Water Quality
Aquatic Toxicology Unit
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
v-[phone]
f-[phone]
MailTo:[e-mail]
A few observations and much reasoning lead to error;
many observations and a little reasoning to truth.
--Alexis Carrel
1 of 1 8/27/02 9:41 AM

CITY OF WILNIINGTON
PUBLIC UTILITIES DEPARTMENT
OCT - 4 2002
Joe R. Corpo
NC Division of Water Quality
NPDES Unit
1617 Mail Service Center
Raleigh, NC 27699-1617
Re :
:: 1
1-iz i (fl
NPDES Draft Permit Comments
Permit No. NC0023973
M'Kean Maffitt (Southside) WWTP
ctober 1, 2002
P.O. Box 1810
1WILMINGTON, NC 28402
TDD [phone]
We have reviewed the draft renewal permit received on September 3, 2002. We have
also reviewed the cover letter and fact sheet that accompanied the draft. Following are our
comments:
NPDES Draft Permit Comments
(s `JItc-
X "Maffitt" is misspelled as "Moffitt" throughout. }-- Tft AFL
The facility description incorrectly describes the gravity -belt thickeners as dryers ..- pc/1-he T
Reference to an effluent pump station should be deleted from the facility descaiption
J•'' Facility description should include alkaline stabilization capability for sludge ---
The effluent table calls for monthly toxicity monitoring but the footnote indicates
quarterly c.c'aCzz-cT1 L GDQc T : see Fc-b-r lf_, 44 -
�:eTs Tc / Footnote 1 on the effluent page incorrectly describes the in -stream monitoring locations. t
CcNi F In -stream DO monitoring at 3/week is inconsistent with the Lower Cape Fear River L. R4o 5
Program sampling protocol as approved in the MOA.
The draft permit does not specify % removal requirements for BOD and TSS.. Has this
been eliminated?
Footnote 4 calls for a pH range of 6.8-8.5. This appears to be a typographical error. s(n Q
42-1/1
Range for Northside was 6.0-9.0 and should be appropriate for Southside as well. �, 5
What is the basis for the 2/month monitoring frequency for Cu, Zn and Ag? ly, 6 r
The monitoring data used by DWQ to justify our permit is inconsistent with that
submitted on our DMRs. It is unclear how DWQ derived the data. r--1' (L\J I pm,4_
Even using certified methods, total cyanide monitoring data at low concentrations is e"Q ktC`E
suspect at best. There are many interferences associated with cyanide testing as P
demonstrated in studies by UNC-Chapel Hill. ` r •
`—' bA-VF— (46c i OtSc-c)ss •
NO
Ct}1'M E
ADMINISTRATION
VOICE (910) 341-780
FAX [phone]
ENVIRONMENTAL. SERVICES
VOICE [phone]
FAX [phone]
UTILITY SERVICES
Vo,CE(910) 341-7884
FAX [phone]
WASTEWATER TREATMENT
LOUGH UN PLANT MAFF1TT PLANT
VOICE [phone]' VOICE (910) 799 53e,0
FAX [phone]
WATER TREATMENT
VOICE [phone]
FAX [phone]

Joe R. Corporon
October 1, 2002
Page Two
There is no wastewater certification for testing free cyanide. This requirement should be
eliminated until a reliable, certified testing method is developed.-'4�j`l:/C C� k) CC
In Sect A (3) the cyanide evaluation should be eliminated. There are no relic le, certified
test methods for free cyanide. It is our understanding that the NCDWQ lab analyzes only
total cyanide and uses 20 µg/1 as the limit of detection. Monitoring results for cyanide at
Southside were all below 20 µg/1 and should be treated as non -detects.
Fact Sheet Comments
Maffit is misspelled throughout the document --- C<X? Ec P-P 006 ;
The Lat/Long for the discharge differs from our current permit -�' - CZ2G-�T�� vs/ �` 5
We understand that segments of the Lower Cape Fear River are 303(d) listed ----� ,44p� IT
DMRs should be reviewed in complete 12 month increments to eliminate cyclical /=r4rt WT
variation and bias ' Did-Dic (f I Cerfp
The application supplement has not been certified and sent to EPA as of this date -774J F
LL. C3�St1j
The number of samples and hits in Table 3 are inconsistent with our DMRw/Fo loi-L,
Certification of Permit Application Amendment Comments
/ Many inconsistencies were discovered in the DW
amendment a fr to
f The certification state an r/
d evfsed data sheets are enclosed. I/
i) - 614sr-
ata to be submitted with the permit
We feel these comments should be addressed prior to sending the permit for public
notice. If you have any questions please feel free to contact me.
Yours very truly,
Hugh T. Caldwell, PE
Director of Public Utilities
cc: Kenneth L. Vogt, Superintendent of Wastewater Treatment

41,P4CcGPriro-v 3��Lc-he-Afr
Effluent Monitoring Data*
MONTH
NPDES # NAME PARAMETER NAME UNITS CODE Item
NC0023973 Total
NC0023973 WILMINGTON - SOUTHSIDE WWTP FLOW MGD 50050 Avg.
Max.
Min.
BOD, 5-DAY (20C) MG/L 00310 Avg.
Max.
Min.
TOTAL SUSPENDED SOLIDS MG/L 00530 Avg.
Max.
Min.
AMMONIA (AS N) MG/L 00610 Avg.
Max.
Min.
FECAL COLIFORM #/100ML 31616 Avg.
Max.
Min.
TOTAL RESIDUAL CHLORINE UG/L 50060 Avg.
Max.
Min.
TOTAL NITROGEN (AS N) MG/L 00600 Avg.
Max.
Min.
TOTAL PHOSPHORUS (AS P) MG/L 00665 Avg.
Max.
Min.
TEMPERATURE (C) DEG.0 00010 Avg.
Max.
Min.
DISSOLVED OXYGEN (DO) MG/L 00300 Avg.
Max.
Min.
TOTAL CYANIDE (AS CN) MG/L 00720 Avg.
Max.
Min.
TOTAL CHROMIUM (AS CR) MG/L 01034 Avg.
Max.
Min.
TOTAL COPPER (AS CU) MG/L 01042 Avg.
Max.
Min.
TOTAL LEAD (AS PB) MG/L 01051 Avg.
Max.
Min.
TOTAL NICKEL (AS NI) MG/L 01067 Avg.
Max.
Min.
TOTAL SILVER (AS AG) MG/L 01077 Avg.
Max.
Min.
TOTAL ZINC (AS ZN) MG/L 01092 Avg.
Max.
Min.
Oct 1999 Nov 1999 Dec 1999 Jan 2000 Feb 2000 Mar 2000 Apr 2000 May 2000 Jun 2000 Jul 2000 Aug 2000 Sep 2000 12-Month
Summary
7.9617 7.9092 7.6053 7.7902 7.6667 7.7229 8.1592 8.8471 9.1509 8.090
0 0 0 9.363 8.61 8.356 9.063 8.131 8.261 9.643 9.597 10.752 10.752
0 0 0 7.326 7.235 7.245 5.979 7.31 7.402 7.548 8.291 8.129 0
32.2 21.23 21.15 14 14.14 22.6 21.64 21.5 19.63 20.4 22.34 20.85 20.973
45 27 74 26 46 38 29 33 34 37 32 28 74
16 14 9 6 4 13 15 15 9 13 13 11 4
3.1 2.4 3.9 5.1 4.7 4.3 4 3.3 3.3 3 2.9 2.8 3.567
13.8 5.4 5.4 7.4 6.4 5.7 5.4 6.4 5.6 4 4.6 4.8 13.8
0 1 2.8 3.8 2.8 3.4 1.2 1.6 0 2 1.8 1.4 0
9.91 9.59 10.28 11.45 12.57 12.44 12.33 9.04 7.21 11.56 11.6 10.84 10.735
13.2 13.7 15.4 16 15.7 15 17.3 13.1 13.3 17.3 15.3 13.2 17.3
6.3 6.2 4.7 7.6 8.3 7.6 7.8 4.1 1.6 5.2 7 6.3 1.6
10.6 5 2.9 1.7 3.1 2.6 2.5 2.2 2.7 5.6 20.9 5.1 4.036
58 15 18 6 24 10 10 21 36 128 1140 30 1140
0 2 1 0 1 0 0 0 0 1 3 0 0
700 715.789 735 855.555 842.857 839.13 752.631 615.454 586.363 620 726.086 770 729.905
1100 1100 900 1200 1200 1200 900 900 900 1000 1200 1100 1200
400 500 600 700 500 500 500 400 200 400 400 500 200
16.3 12.6 19.1 19.1 21.1 14.3 19.6 18 18.3 20.8 15.5 16.6 17.608
16.3 12.6 19.1 19.1 21.1 14.3 19.6 18 18.3 20.8 15.5 16.6 21.1
16.3 12.6 19.1 19.1 21.1 14.3 19.6 18 18.3 20.8 15.5 16.6 12.6
1.8 2.5 3 3.3 3 3.5 3.2 3.4 3.7 3.5 2.4 2.4 2.975
1.8 2.5 3 3.3 3 3.5 3.2 3.4 3.7 3.5 2.4 2.4 3.7
1.8 2.5 3 3.3 3 3.5 3.2 3.4 3.7 3.5 2.4 2.4 1.8
21.09 19.36 17.15 15.27 15.19 17.6 19.05 21.9 24.27 25.15 25.26 23.8 20.424
24 23 20 19 18 20 21 25 26 27 27 26 27
19 17 13 9 13 16 17 20 22 24 23 21 9
6.17 6.38 6.55 7.07 7.2 7.12 6.97 6.52 5.95 5.77 5.8 5.7 6.433
6.4 6.5 6.7 7.5 7.3 7.4 7.5 7 6.4 6 6.1 5.8 7.5
6 6.2 6.4 6.6 7.1 6.7 6.7 6.2 5.8 5.6 5.6 5.6 5.6
0 0 0 0 0.006 0.009 0 0.007 0.005 0 0.015 0 0.004
0 0 0 0 0.006 0.009 0 0.007 0.005 0 0.015 0 0.015
0 0 0 0 0.006 0.009 0 0.007 0.005 0 0.015 0 0
0 0.005 0 '- '-- 0.002
0 0 0 0 0 0.005 0 0 0 0'-- '- 0.005
0 0 0 0 0 0.005 0 0 0 0 '- '----- 0
0.006 0.008 0.012 0.015 0.016 0.016 0.006 0.013 0.01 0.011 0.008 0.009 0.011
0.006 0.008 0.012 0.015 0.016 0.016 0.006 0.013 0.01 0.011 0.008 0.009 0.016
0.006 0.008 0.012 0.015 0.016 0.016 0.006 0.013 0.01 0.011 0.008 0.009 0.006
0 0 0 '- -
0 0 0 0 0 0 0 0 0 0 '- - 0
0 0 0 0 0 0 0 0 0 0 '----- '----- 0
0 0 0 '--- -
0 0 0 0 0 0 0 0 0 0 '- - 0
0 0 0 0 0 0 0 0 0 0 '- - 0
0 0.003 0 '- - 0.001
0 0 0 0 0 0.003 0 0 0 0 '- - 0.003
0 0 0 0 0 0.003 0 0 0 0 '----- '---- 0
0.029 0.017 0 '- 0.015
0 0.029 0 0 0 0.017 0 0 0 0 '- '- 0.029
0 0.029 0 0 0 0.017 0 0 0 0 '- - 0
effluentdata1 ids,DataSumm
See separate sheets for pH and toxicity data. 12/19/2001

Effluent Monitoring Data*
MONTH
NPDES # NAME PARAMETER NAME UNITS CODE Item
Oct 2000 Nov 2000 Dec 2000 Jan 2001 Feb 2001 Mar 2001 Apr 2001 May 2001 Jun 2001 Jul 2001 Aug 2001 Sep 2001 12-Month
Summary
NC0023973 Total 8.243
NC0023973 WILMINGTON - SOUTHSIDE WWTP FLOW MGD 50050 Avg. 8.2045 8.0927 8.2834 7.9184 7.7742 8.5787 8.3313 8.0083 8.368 8.467 8.4014 8.488 8.243
Max. 9.178 8.85 9.15 8.325 7.981 10.79 8.705 8.287 8.715 8.809 8.826 9.432 10.79
Min. 7.425 7.458 7.277 7.588 7.511 7.708 7.937 7.814 8.086 8.201 8.057 7.981 7.277
BOD, 5-DAY (20C) MG/L 00310 Avg. 18.86 25.94 24.78 26.85 18.2 18.18 19 19 24.04 17.85 20.34 16 20.753
Max. 26 42 38 52 27 33 27 32 41 32 30 40 52
Min. 13 12 16 16 11 13 11 9 10 12 14 8 8
TOTAL SUSPENDED SOLIDS MG/L 00530 Avg. 2.7 3.4 5.6 5.8 5.3 4.7 4.5 2.9 3.4 3.2 2.9 4.7 4.092
Max. 4.4 4.9 9.5 8.3 6.6 8.8 12.4 5 7.2 11.4 4.2 22 22
Min. 1.6 1.4 3.8 4.4 3.6 2.6 2 1.2 1.6 1.2 2 2.4 1.2
AMMONIA (AS N) MG/L 00610 Avg. 12.54 14.49 16.57 16 14.83 16.36 18.59 15.98 16.44 13.15 13.08 12.46 15.041
Max. 16.6 17.7 22.8 20.5 18.3 21.1 23.8 20.4 22.2 21.3 16.4 16.1 23.8
Min. 7.1 11.1 11 10.3 10.1 11.8 13.5 10.3 10.6 7.8 9.4 8.7 7.1
FECAL COLIFORM #/100ML 31616 Avg. 10.8 8.8 5 8.2 12.3 3.7 3.3 2.1 4.7 7.3 9.6 5.6 6.020
Max. 500 116 26 22 27 26 13 11 26 112 460 184 500
Min. 1 0 2 2 2 1 1 0 1 0 2 1 0
TOTAL RESIDUAL CHLORINE UG/L 50060 Avg. 722.727 700 726.315 647.619 645 713.636 725 659.09 609.523 552.38 530.434 547.368 648.258
Max. 1000 1100 1000 800 800 900 1000 900 800 800 900 900 1100
Min. 400 100 400 400 500 500 500 500 300 300 200 300 100
TOTAL NITROGEN (AS N) MG/L 00600 Avg. 18.1 22.8 19.2 23.2 20.6 20.3 22.5 26.2 24.7 23.8 20.4 16.6 21.533
Max. 18.1 22.8 19.2 23.2 20.6 20.3 22.5 26.2 24.7 23.8 20.4 16.6 26.2
Min. 18.1 22.8 19.2 23.2 20.6 20.3 22.5 26.2 24.7 23.8 20.4 16.6 16.6
TOTAL PHOSPHORUS (AS P) MG/L 00665 Avg. 3 3.6 3.3 3.5 3.5 3.2 3.15 3.9 3.25 3.2 3.4 2.6 3.300
Max. 3 3.6 3.3 3.5 3.5 3.2 3.2 3.9 3.3 3.2 3.4 2.6 3.9
Min. 3 3.6 3.3 3.5 3.5 3.2 3.1 3.9 3.2 3.2 3.4 2.6 2.6
TEMPERATURE (C) DEG.0 00010 Avg. 21 18.84 15.21 14 15.75 15.95 18.65 21.45 24.47 25.52 26.21 24.26 20.109
Max. 24 22 19 17 18 18 21 24 26 27 28 26 28
Min. 19 16 12 11 14 12 15 20 24 24 23 22 11
DISSOLVED OXYGEN (DO) MG/L 00300 Avg. 6.1 6.45 7 7.24 7.17 6.67 6.77 6.76 5.97 5.88 5.87 5.82 6.475
Max. 6.4 6.7 7.2 7.5 7.6 6.9 7.1 7.3 6.2 6 6.1 5.9 7.6
Min. 5.6 6.2 6.8 6.8 6.9 6.5 6.6 6.2 5.8 5.8 5.8 5.7 5.6
TOTAL CYANIDE (AS CN) MG/L 00720 Avg. 0.009 0.009 0.014 0.016 0.008 0.006 0 0 0 0 0 0 0.005
Max. 0.009 0.009 0.014 0.016 0.008 0.006 0 0 0 0 0 0 0.016
Min. 0.009 0.009 0.014 0.016 0.008 0.006 0 0 0 0 0 0 0
TOTAL CHROMIUM (AS CR) MG/L 01034 Avg. '--- '---- '--- '--- '--- '---- '----- '-- '-- '----- '--- '----- #DIV/0!
Max. '---- '--- '-- '--.- 1--- '--- '--- '--- '_... 0
Min. 1-.... '--- '--- '---- --- '-_-_ '--- '--- '--- '---- 0
TOTAL COPPER (AS CU) MG/L 01042 Avg. 0.007 0.012 0.016 0.015 0.018 0.012 0.01 0.011 0.014 0.01 0.013 0 0.012
Max. 0.007 0.012 0.016 0.015 0.018 0.012 0.01 0.011 0.014 0.01 0.013 0 0.018
Min. 0.007 0.012 0.016 0.015 0.018 0.012 0.01 0.011 0.014 0.01 0.013 0 0
TOTAL LEAD (AS PB) MG/L 01051 Avg. ---- --- --- '----- '--- '----- -_- '-__ #DIV/0!
Max. '--- -- 1-- 0
Min. '----- '----- 0
TOTAL NICKEL (AS NI) MG/L 01067 Avg. '----- '-- '---- #DIV/0!
Max. '--- '----- '-- 0
Min. ---- -- '--- 0
TOTAL SILVER (AS AG) MG/L 01077 Avg. '--- '----- '--- - '-- #DiVl01
Max.--' '----- -- 0
Min. '-- '_.- '----- 0
TOTAL ZINC (AS ZN) MG/L 01092 Avg. '-- '---- '--- '---- '----- - '--- #DIV/0!
Max. '-- - '._- '-.« 1-... '----- '---- '--- 0
Min. '-- '- - '----- '-- '--- '--- '--- '--- '--- 0
' See separate sheets for pH and toxicity data.
effluentdatai.x!s,DataSumm
12/19/2001

Effluent Monitoring Data - pH
NPDES #
NAME PARAMETER NAME CODE UNITS MONTH MAXIMUM MINIMUM
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 199910 7.5 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 199911 7.6 7.2
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 199912 7.3 7
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200001 7.3 6.8
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200002 7.2 6.9
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200003 7.3 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200004 7.3 7
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200005 7.2 7
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200006 7.2 6.7
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200007 7.3 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200008 7.4 6.8
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200009 7.3 6.9
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200010 7.4 6.8
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200011 7.3 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200012 7.3 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200101 7.3 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200102 7.3 7
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200103 7.3 7
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200104 7.4 7.1
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200105 7.4 6.9
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200106 7.5 7.2
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200107 7.4 6.9
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200108 7.4 7.2
NC0023973 WILMINGTON, CITY/SOUTHSIDE pH 00400 SU 200109 7.4 7.1
NC0023973 Count 24
effluentdatal .xls,pH
12/19/2001

Effluent Monitoring Data - Toxicity
NPDES #
FACILITY NAME
PARAMETER NAME
CODE UNITS MONTH RESULT
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 WILMINGTON, CITY/SOUTHSIDE
NC0023973 Total
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, PIF 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
PIF STAT 24HR ACU DAPHNIA PULEX
ACUTE TOX, P/F 48HR CERIODAPHNIA
ACUTE TOX, P/F 48HR D. PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
P/F STAT 24HR ACU DAPHNIA PULEX
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGA3B
TGA3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
TGE3D
PASSIFAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASSIFAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASSIFAIL
PASSIFAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
PASS/FAIL
199910 NO DATA
199910 NO DATA
199910 NO DATA
199911 NO DATA
199911 NO DATA
199911 NO DATA
199912 NO DATA
199912 NO DATA
199912 PASS
200001 NO DATA
200001 NO DATA
200001 NO DATA
200002 NO DATA
200002 NO DATA
200002 NO DATA
200003 PASS
200003 NO DATA
200003 NO DATA
200004 NO DATA
200004 NO DATA
200004 NO DATA
200005 NO DATA
200005 NO DATA
200005 NO DATA
200006 NO DATA
200006 NO DATA
200006 PASS
200007 NO DATA
200007 NO DATA
200007 NO DATA
200008 NO DATA
200009 PASS
200010 NO DATA
200011 NO DATA
200012 PASS
200101 NO DATA
200102 NO DATA
200103 PASS
200104 NO DATA
200105 NO DATA
200106 PASS
200107 NO DATA
200108 NO DATA
200109 PASS
effluentdatal .xls,Toxicity
12/19/2001

&JT4 SrQF
Freshwater Saltwater
Aquatic Human Aquatic Human
Pollutant of Concern (ug/L) Life Health Life Health SA
Arsenic 50
Barium
Benzene 71.4 S
Beryllium 6,5 0.117 A
Cadmium 2 L�
Carbon Tetrachloride 4.42 .l ZSrfS
Chloride (mg/L) 230 I'
Chlorinated Benzenes
Total Residual Chlorine 17
Chlorophyll a, corrected 40
Chromium, Total 50 20
Coliform, Total
Coliform, Fecal 200 14
Copper, Total 7 , 3
Cyanide 5 1
Dioxin 0.000000014
Dissolved Gases 110% of Saturation
Dissolved Oxygen (mg/L) 5
Fluoride 1800
Hardness, Total (mg/L) (as CACO3)
hexachiorobutadiene 49.7
Iron (mg/L) 1
Lead 25
Manganese
MBAS 500
Mercury 0.012 0.025
Nickel 88 8.3
Nitrate Nitrogen (mg/L)
Pesticides
pH
Aldrin 0.002 0.000136 0.003 0.000136
Chlordane 0.004 0.000588
DDT 0.001 0.000591
Demeton 0.1
Dieldrin 0.002 0.000144 0.0002 0.000144
Endosulfan 0,05 0.009
Endrin 0.002
Guthion 0.01
Heptachlor 0.004 0.000214
Lindane 0,01 0.004
Methooxychlor 0,03
Mirex 0.001
Parathon 0.013 0.178
Toxaphene 0.0002
2,4-D
2,4,5-TP (Silvex)
6.0-9.0 6.8-8.5

Phenolic Compounds
Polychlorinated bephenyls
Polynuclear aromatic hydrocarbons
Radioactive substances
Selenium
Silver
Total Dissolved Solids (mg/L)
Total Suspended Solids (mg/L)
Setteable Solids
Sulfates (mg/L)
Temperature
Tetrachloroethane (1,1,2,2)
Tetrachlorethylene
Toluene
Toxic Substances
Trialkyltin
Trichloroeth ylene
Turbidity
Vinyl Chloride
Zinc
0.001 0.000079
0.0311 0.0311
5
0.06
11
0.008
50
10.8
92.4
525
71
0.1
0.002
25
86
Freshwater Saltwater
Aquatic Human Aquatic Human
Additional Parameters (ug/L) Life Health Life Health SA
Ethylbenzene 383
MTBE 70
Xylene 88.5
Oil and Grease 30

Facility Name =
NPDES # =
Qw (MGD) _
7Q10s (cfs)=
1WC (%) =
Wilmington (Southsidc) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Arsenic
Max. Prcd Cw
Allowable Cw
37.31114792
50.0
RESULTS
Std Dev.
Mean
C.V.
Numbcr
of data points
HITS
Malt Factor =
Max. Value
Max. Prcd Cw
Allowable Cw
3.2281
3.4
0.9503
37
9
2.49
15.0 pg/1
37.3 pg/1
50.0 pg/1
Parameter =
Standard =
Arscnic
50.0
P8n
Date n < Actual Data BDL=1/2DL
Jan-98
Fcb-98
Mar-98
Apr-98
May-98
Jun-98
Jul-98
Aug-98
Scp-98
Oct-98
Nov-98
Dec-98
Jan-99
Fcb-99
Mar-99
Apr-99
May-99
Jun-99 1 < 3.0 1.5
Jul-99
Aug-99
Scp-99 2 < 3.0 1.5
Oct-99
Nov-99 3 < 3.0 1.5
Dcc-99
Jan-00
Feb-00
Mar-00 4 < 3.0 1.5
Apr-00 5 < 3.0 1.5
May-00
Jun-00
JuI-00
Aug-00 6 < 3.0 1.5
Scp-00
Oct-00 7 < 3.0 1.5
Nov-00
Dec-00
Jan-01 8 < 3.0 1.5
Feb-01 12 < 3.0 1.5
Mar-01 13 < 3.0 1.5
Apr-01 14 < 3.0 1.5
May-01 15 < 3.0 1.5
Jun-01 16 < 3.0 1.5
Jul-01 17 < 3.0 1.5
Aug-01 18 < 3.0 1.5
Scp-01 19 < 3.0 1.5
Oct-01 20 < 3.0 1.5
Nov-01 21 6.0 6.0
Dec-01 22 4.0 4,0
Apr-97 23 < 5.0 2.5 LTMP data
Aug-97 24 < 5.0 2.5 LTMP data
Nov-97 25 6.0 6.0 LIMP data
Mar-98 26 8.0 8.0 LTMP data
May-98 27 < 5.0 2.5 LTMP data
Aug-98 28 < 5.0 2.5 LTMP data
Nov-98 29 6.0 6.0 LTMP data
Jun-99 30 9.0 9.0 LTMP data
Nov-99 31 < 5.0 2.5 LTMP data
Mar-00 32 9.0 9.0 LTMP data
Apr-00 33 < 5.0 2.5 LTMP data
Aug-00 34 15.0 15.0 LTMP data
Oct-00 35 9.0 9.0 LTMP data
Fcb-02 36 <
May-02 37 <
3.0 1.5
3.0 1.5

o.
Facility Nance =
NPDES # =
Qw (MGD) =
70103 (cfs)=
[WC (T)
Wilmington (Southside) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Cadmium
Max. Pred Cw
Allowable Cw
3.3
5.0
1RESULTS
Std Dev.
Mean
CV.
Numbcr
of data points
HITS
Molt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.2572
1.0
0.2464
34
1
1.33
2.5 ltgil
3.3 pg/l
5.0 µg/1
Parameter =
Standard =
Cadmium
5.0
Date n < Actual Data BDL=1/2DL
Jan-98
Feb-98
Mar-98
Apr-98
May-98
Jun-98
Jul-98
Aug-98
Scp-98
Oct-98
Nov-98
Dec-98
Jan-99
Fcb-99
Mar-99
Apr-99
May-99
Jun-99 1 < 2.0 1.0
Jul-99
Aug-99
Sep-99 2 < 2.0 1.0
Oct-99
Nov-99 3 < 2.0 1.0
Dec-99
Jan-00
Fcb-00
Mar-00 4 < 2.0 1.0
Apr-00 5 < 2.0 1.0
May-00
Jun-00
Jul-00
Aug-00 6 < 2.0 1.0
Scp-00
Oct-00 7 < 2.0 1.0
Nov-00
Dec-00
Jan-01 8 < 2.0 1.0
Feb-01 9 < 2.0 1.0
Mar-01 10 < 2.0 1.0
Apr-01 11 < 2.0 1.0
May-01 12 < 2.0 1.0
Jun-01 13 < 2.0 1.0
Jul-01 14 < 2.0 1.0
Aug-01 15 < 2.0 1.0
Scp-01 16 < 2.0 1.0
Oct-01 17 < 2.0 1.0
Nov-0I 18 < 2.0 1.0
Dec-01 19 < 2.0 1.0
Apr-97 20 2.5 2.5 LTMP data
Aug-97 21 < 2.0 1.0 LTMP data
Nov-97 22 < 2.0 1.0 LTMP data
Mar-98 23 < 2.0 1.0 LTMP data
May-98 24 < 2.0 1.0 LTMP data
Aug-98 25 < 2.0 1.0 LTMP data
Nov-98 26 < 2.0 1.0 LTMP data
LIMP data
Jun-99 27 < 2.0 1.0 LTMP data
LTMP data
Nov-99 28 < 2.0 1.0 LTMP data
Mar-00 29 < 2.0 1.0 LTMP data
Apr-00 30 < 2.0 1.0 LTMP data
Aug-00 31 < 2.0 1.0 LTMP data
Oct-00 32 < 2.0 1.0 LTMP data
Fcb-02 33 <
May-02 34 <
2.0 1.0
2.0 1.0

4.
Facility Nanre =
NPDES # =
Qv (MGD) =
7QIOs (cWs)=
!WC (%)
Wilmington (Southsidc) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Cyanide
Max. Prcd Cw
Allowable Cw
157.0
1.0
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
HITS
Molt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
8.4488
6.4
1.3210
48
22
2.71
58.0 pg/1
157.0 µg/1
1.0 µg/1
NOTE: All data points below 10 ug/L are considered "not detected"
because of limitation in the NC state laboratory, PQL
Parameter =
Standard =
Cyanide
1.0
nil
Date n < Actual Data BDL=1/2DL
Jan-98 1 < 5.0 2.5
Fcb-98 2 7.0 7.0
Mar-98 3 8.0 8.0
Apr-98 4 < 5.0 2.5
May-98 5 < 5.0 2.5
Jun-98 6 < 5.0 2.5
Jul-98 7 7.0 7.0
Aug-98 8 < 5.0 2.5
Scp-98 9 5.0 5.0
Oct-98 10 6.0 6.0
Nov-98 I < 5.0 2.5
Dec-98 12 < 5.0 2.5
Jan-99 13 < 5.0 2.5
Fcb-99 14 < 5.0 2.5
Mar-99 15 11.0 11.0
Apr-99 16 8.0 8.0
May-99 17 < 5.0 2.5
Jun-99 18 9.0 9.0
Jul-99 19 < 5.0 2.5
Aug-99 20 < 5.0 2.5
Sep•99 21 9.0 9.0
Oct-99 22 < 5.0 2.5
Nov-99 23 58.0 58.0
Dec-99 24 < 5.0 2.5
Jan-00 25 < 5.0 2.5
Feb.00 26 6.0 6.0
Mar-00 27 9.0 9.0
Apr-00 28 < 5.0 2.5
May-00 29 7.0 7.0
Jun-00 30 5.0 5.0
Jul-00 31 < 5.0 2.5
Aug-00 32 15.0 15.0
Scp-00 33 < 5.0 2.5
Oct-00 34 9.0 9.0
Nov-00 35 9.0 9.0
Dcc-00 36 14.0 14.0
Jan-01 37 16.0 16.0
Fcb-0I 38 8.0 8.0
Mar-0I 39 8.0 8.0
Apr-01 40 < 5.0 2.5
May-01 41 < 5.0 2.5
Jun-0I 42 < 5.0 2.5
Jul-01 43 < 5.0 2.5
Aug-01 44 < 5.0 2.5
Sep-01 45 < 5.0 2.5
Oct-01 46 < 5.0 2.5
Nov-0I 47 8,0 8.0
Dec-01 48 < 5.0 2.5
Apr-97 LTMP data
Aug-97 LTMP data
Nov-97 LTMP data
Mar-98 LTMP data
May-98 LTMP data
Aug-98 LTMP data
Nov-98 LTMP data
LTMP data
Jun-99 LTMP data
LTMP data
Nov-99 LTMP data
Mar-00 LTMP data
Apr-00 LTMP data
Aug-00 LTMP data
oct-oo LTMP data
Jan-02
Fcb-02
May-02
Apr-02
May-02

Facility Nacre =
NPDES # =
Qw (MGD)
7Q10s (cis).
!WC (%)
Wilmington (Soutttside) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Copper
Max. Prcd Cw
Allowable Cw
24.8
3.0,
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
HITS
Malt Factor a
Max. Value
Max. Prat Cw
AIlowable Cw
3.2842
9.4
0.3488
53
53
1.38
18.0 leg/1
24.8 Itg/1
3.0 pg/I
Parameter =
Standard =
CoPPef
3.0
Date n < Actual Data BDL=1/2DL
Jan-98 1 7.0 7.0
Fcb-98 2 6.0 6.0
Mar-98 3 6.0 6.0
Apr-98 4 8.0 8.0
May-98 5 10.0 10.0
Jun-98 6 7.0 7.0
Jul-98 7 5.0 5.0
Aug-98 8 6.0 6.0
Scp-98 9 9.0 9.0
Oct-98 10 9.0 9.0
Nov-98 11 10.0 10.0
Dec-98 12 8.0 8.0
Jan-99 13 8.0 8.0
Feb-99 14 9.0 9.0
Mar-99 15 11.0 11.0
Apr-99 16 10.0 10.0
May-99 17 7.0 7.0
Jun-99 18 8.0 8.0
Jul-99 19 9.0 9.0
Aug-99 20 9.0 9.0
Scp•99 21 11.0 11.0
Oct-99 22 6.0 6.0
Nov-99 23 8.0 8.0
Dcc-99 24 12.0 12.0
Jan-00 25 15.0 15.0
Fcb-00 26 16.0 16.0
Mar-00 27 16.0 16.0
Apr-00 28 6.0 6.0
May-00 29 6.0 6.0
lun400 30 6.0 6.0
Jul.00 31 6.0 6.0
Aug-00 32 6.0 6.0
Scp-00 33 6.0 6.0
Oct-00 34 6.0 6.0
Nov-00 35 6.0 6.0
Dcc-00 36 6.0 6.0
Jan-01 37 15.0 15.0
Fcb•0I 38 18.0 18.0
Mar-01 39 12.0 12.0
Apr-01 40 10.0 10.0
May-01 41 11.0 11.0
Jun-01 42 14.0 14.0
Jul-01 43 10.0 10.0
Aug-01 44 13.0 13.0
Scp-01 45 5.0 5.0
Oct-01 46 9.0 9.0
Nov-01 47 12.0 12.0
Dcc-01 48 12.0 12.0
Apr-97 LTMP data
Aug-97 LTMP data
Nov-97 LTMP data
Mar-98 LTMP data
May-98 LTMP data
Aug-98 LTMP data
Nov-98 LTMP data
LTMP data
Jun-99 LTMP data
LTMP data
Nov-99 LTMP data
Mar-00 LTMP data
Apr-00 LTMP data
Aug-00 LTMP data
Oct-oo LTMP data
Jan-02 49 16.0 16.0
Fcb-02 50 11.0 11.0
May-02 51 10.0 10.0
Apr-02 52 11.0 11.0
May-02 53 10.0 10.0

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
IWC (%) _
Wilmington (Southsidc) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Chromium
Max. Prcd Cw
Allowable Cw
6.9
20.0
RESULTS
Std Dev.
Mcan
C.V.
Number
of data points
HITS
Mult Factor =
Max. Value
Max. Prcd Cw
Allowable Cw
0.7870
2.8
0.2841
35
0
1.38
5.0 µg/1
6.9 µg/1
20.0 µgI1
Parameter =
Standard =
Chromium
20.0
µ /1
Date n < Actual Data BDL=1/2DL
Jan-98
Fcb-98
Mar-98
Apr-98
May-98
Jun-98
JuI-98
Aug-98
Sep-98
Oct-98
Nov-98
Dec-98
Jan-99
Fcb•99
Mar-99 1 < 5.0 2.5
Apr-99
May-99
Jun-99 2 < 5.0 2.5
Jul-99
Aug-99
Sep-99 3 < 5.0 2.5
Oct-99
Nov-99 4 < 5.0 2.5
Dec-99
Jan-00
Fcb-00
Mar-00 5 5.0 5.0
Apr-00 6 < 5.0 2.5
May-00
Jun-00
Jul•00
Aug-00 7 < 5.0 2.5
Sep-00
Oct•00 8 < 5.0 2.5
Nov-00
Dcc-00
Jan-01 9 < 5.0 2.5
Fcb-01 10 < 5.0 2.5
Mar-01 I < 5.0 2.5
Apr-01 12 < 5.0 2.5
May-01 13 < 5.0 2.5
Jun-01 14 < 5.0 2.5
Jul-01 15 < 5.0 2.5
Aug-01 16 < 5.0 2.5
Scp-01 17 < 5.0 2.5
Oct-01 18 < 5.0 2.5
Nov-01 19 < 5.0 2.5
Dec-01 20 < 5.0 2.5
Apr-97 21 < 5.0 2.5 LTMP data
Aug-97 22 < 5.0 2.5 LTMP data
Nov-97 23 < 5.0 2.5 LTMP data
Mar-98 24 < 5.0 2.5 LTMP data
May-98 25 < 5.0 2.5 LTMP data
Aug-98 26 < 5.0 2.5 LTMP data
Nov-98 27 < 5.0 2.5 LTMP data
5.0 5.0 LTMP data
Jun-99 28 < 5.0 2.5 LTMP data
5.0 5.0 LTMP data
Nov-99 29 < 5.0 2.5 LTMP data
Mar-00 30 5.0 5.0 LTMP data
Apr-00 31 < 5.0 2.5 LTMP data
Aug-00 32 < 5.0 2.5 LTMP data
Oct-00 33 < 5.0 2.5 LTMP data
Fcb-02 34 <
May-02 35 <
5.0 2.5
5.0 2.5

Facility Name =
NPDES # =
Qw (MGD) =
7Q10s (cfs)=
1WC (%1 _
Wilmington (Southsidc) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Lead
Max. Prcd Cw
Allowable Cw
2.5
0.0
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
HITS
Mult Factor =
Max. Value
Max. Prcd Cw
Allowable Cw
0.0000
2.5
0.0000
33
1
1.00
2.5 µgf
2.5 µg/l
25.0 pg/1
Parameter =
Standard =
Lead
25.0
PO
Date n < Actual Data BDL=I/2DL
Jan-98
Feb-98
Mar-98
Apr-98
May-98
Jun-98
Jul-98
Aug-98
Sep-98
Oct-98
Nov-98
Dec-98
Jan-99
Feb-99
Mar-99 1 < 5.0 2.5
Apr-99
May-99
Jun-99 2 < 5.0 2.5
Ju1-99
Aug-99
Sep-99 3 < 5.0 2.5
Oct-99
Nov-99 4 < 5.0 2.5
Dec-99
Jan-00
Feb-00
Mar-00 5 < 5.0 2.5
Apr-00 6 < 5.0 2.5
May-00
Jun-00
Jul-00
Aug-00
Scp-00
Oct-00
Nov-00
Dcc-00
Jan-01 7 ' < 5.0 2.5
Fcb-01 8 < 5.0 2.5
Mar-01 9 < 5.0 2.5
Apr-01 10 < 5.0 2.5
May-01 11 < 5.0 •2.5
Jun-01 12 < 5.0 2.5
Jul-01 13 < 5.0 2.5
Aug-01 14 < 5.0 2.5
Sep-01 15 < 5.0 2.5
Oct-0I 16 < 5.0 2.5
Nov-01 17 < 5.0 2.5
Dec-01 18 < 5.0 2.5
Apr-97 19 < 5.0 2.5 LTMP data
Aug-97 20 < 5.0 2.5 LTMP data
Nov-97 21 < 5.0 2.5 LTMP data
Mar-98 22 < 5.0 2.5 LTMP data
May-98 23 < 5.0 2.5 LTMP data
Aug-98 24 < 5.0 2.5 LTMP data
Nov-98 25 < 5.0 2.5 LTMP data
LTMP data
Jun-99 26 < 5.0 2.5 LTMP data
LTMP data
Nov-99 27 < 5.0 2.5 LTMP data
Mar-00 28 < 5.0 2.5 LTMP data
Apr-00 29 < 5.0 2.5 LTMP data
Aug-00 30 < 5.0 2.5 LTMP data
Oct -on 31 < 5.0 2.5 LTMP data
Fcb-02 32 < 5.0 2.5
May-02 33 < 5.0 2.5

•
Facility Name =
NPDES / =
Qw (MGD)
7Q10t (c/r)=
1WC(%)_
Wilmington (Southside) WWTP
NC0023973
12
0
100.00
FINAL. RESULTS
Mercury
Mu. Pred Cw
Allowable Cw
0.100
0.025
RESULTS
Std Dcv.
Mean
C.V.
HITS
Number
of data points
HITS
Mutt Factor =
Max. Value
Max. Prod Cw
Allowable Cw
0.0000
0.100
0.0000
3
22
0
l 000l
0.100 µgll
0.100 nil
0.025 mil
Parameter =
Standard =
Mercury
0.025
l�
Date n < Actual Data BDL=12DL
Jan-98
Feb-98
Mar-98
Apr-98
May-98
Jun-98
Jul-98
Aug-98
Sep-98
0ct-98
Nov-98
Dec-98
Jan-99
Feb-99
Mar-99 1 < 0.2 0.1
Apr-99
May-99 2 < 0.2 0.1
Jun-99 3 < 0.2 0.1
Jul-99
Aug-99
Sep-99 4 < 0.2 0.1
Oct-99
Nov-99 5 < 0.2 0.1
Dec-99
Jan-00
Fcb-00
Mar-00 6 < 0.2 0.1
Apr-00 7 < 0.2 0.1
May-00
Jun-00
Jul-00
Aug-00 7 < 0.2 0.1
Sep-00
Oct-00 8 < 0.2 0.1
Nov-00
Dcc-00
Jan-01 9 < 0.2 0.1
Fcb-01 10 < 0.2 0.1
Mar-01 11 < 0.2 0.1
Apr-0I 12 < 0.2 0.1
May-01 13 < 0.2 0.1
Jun-01 14 < 0.2 0.1
Iul-01 15 < 0.2 0.1
Aug-01 16 < 0.2 0.1
Scp-01 17 < 0.2 0.1
Oct-01 18 < 0.2 0.1
Nov-01 19 < 0.2 0.1
Dec-01 20 < 0.2 0.1
Apr-97 LTMP data
Aug-97 LTMP data
Nov-97 LTMP data
Mar-98 LTMP data
May-98 LTMP data
Aug-98 LTMP data
Nov-98 LTMP data
LTMP data
Jun-99 LTMP data
LTMP data
Nov-99 LTMP data
Mar-00 LTMP data
Apr-00 LTMP data
Aug-00 LTMP data
oct-oo LTMP data
Feb-02 21 < 0.2 0.1
May-02 22 < 0.2 0.1

Fadlity Name =
NPDES # =
Qw (MGD) =
7010s (cfs)=
!WC (%) =
Wilmington (Southskdc) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Nickel
Max. Prcd Cw
Allowablc Cw
5.0
8.3
RESULTS
Std Dev.
Mean
C.V.
Number
of data points
HITS
Malt Factor =
Max. Value
Max. Prat Cw
Allowablc Cw
0.0000
5.0
0.0000
33
0
5.0 pg/l
5.0 pg/1
8.3 pg/1
Parameter =
Standard =
Nickel
8.3
Date n < Actual Data BDLij/2DL
Jan-98
Feb-98
Mar-98
Apr-98
May-98
Jun-98
Jul-98
Aug-98
Sep-98
Oct-98
Nov-98
Dec-98
Jan-99
Feb-99
Mar-99 1 < 10.0 5.0
Apr-99
May-99
Jun-99 2 < 10.0 5.0
Jul-99
Aug-99
Scp-99 3 < 10.0 5.0
Oct-99
Nov-99 4 < 10.0 5.0
Dec-99
Jan-00
Fcb-00
Mar-00 5 < 10.0 5.0
Apr-00 6 < 10.0 5.0
May-00
Jun-00
Jul-00
Aug-00
Sep -CO
Oct-00
Nov-00
Dec-00
Jan-01 7 < 10.0 5.0
Fcb-01 8 < 10.0 5.0
Mar-01 9 < 10.0 5.0
Apr-01 10 < 10.0 5.0
May-01 11 < 10.0 5.0
Jun-01 12 < 10.0 5.0
Jul-01 13 < 10.0 5.0
Aug-01 14 < 10.0 5.0
Sep-01 15 < 10.0 5.0
Oct-01 16 < 10.0 5.0
Nov-0I 17 < 10.0 5.0
Dec-01 18 < 10.0 5.0
Apr-97 19 < 10.0 5.0 LTMP data
Aug-97 20 < 10.0 5.0 LTMP data
Nov-97 21 < 10.0 5.0 LTMP dato
Mar-98 22 < 10.0 5.0 LTMP data
May-98 23 < 10.0 5.0 LTMP data
Aug-98 24 < 10.0 5.0 LTMP data
Nov-98 25 < 10.0 5.0 LTMP data
LTMP data
Jun-99 26 < 10.0 5.0 LTMP data
LTMP data
Nov-99 27 < 10.0 5.0 LTMP data
Mar-00 28 < 10.0 5.0 LTMP data
Apr-00 29 < 10.0 5.0 LTMP data
Aug-00 30 < 10.0 5.0 LTMP data
Oct-00 31 < 10.0 5.0 LTMP data
Feb-02 32 < 10.0 5.0
May-02 33 < 10.0 5.0

•
Facility Name =
NPDES # =
Q►v (MGD) =
7Q10s (cfs)=
JWC(%)=
Wilmington (Southside) WWTP
NC0023973
12
0
100.00
FINAL RESULTS
Silver
Max. Prcd Cw
Allowable Cw
3.50
0.10
RESULTS
Std Dcv.
Mean
C.V.
Number
of data points
HITS
Malt Factor =
Max. Value
Max. Pred Cw
Allowable Cw
0.2767
2.1
0.1330
35
5
1.17
3.00 pg/I
3.50 pg/I
0.10 pg/1
Parameter =
Standard =
Silver
0.10
p8/1
Date n < Actual Data BDL=1/2DL
Jan-98
Fcb-98
Mar-98
Apr-98
May-98
Jun-98
Jul-98
Aug-98
Sep-98
Oct-98
Nov-98
Dec-98
Jan-99
Feb-99
Mar-99 1 3.0 3.0
Apr-99
May-99 2.0
Jun-99 2 < 2.0 1.0
Jul-99 2.0
Aug-99
Scp-99 3 < 2.0 1.0
Oct-99
Nov-99 4 < 2.0 1.0
Dec-99
Jan-00
Fcb-00
Mar-00 5 2.0 2.0
Apr-00 6 < 2.0 1.0
May-00
Jun-00
Jul-00
Aug-00 7 < 2.0 1.0
Sep-00
Oct-00 8 < 2.0 1.0
Nov-00
Dcc-00
Jan-01 9 2.0 2.0
Feb-01 10 < 2.0 1.0
Mar-01 11 2.0 2.0
Apr-01 12 < 2.0 1.0
May-01 13 < 2.0 1.0
Jun-01 14 < 2.0 1.0
Jul-01 15 < 2.0 1.0
Aug-01 16 < 2.0 1.0
Sep-01 17 < 2.0 1.0
Oct-01 18 < 2.0 1.0
Nov-01 19 < 2.0 1.0
Dec-01 20 < 2.0 1.0
Apr-97 21 3.0 3.0 LTMP data
Aug-97 22 < 2.0 1.0 LTMP data
Nov-97 23 < 2.0 1.0 LTMP data
Mar-98 24 < 2.0 1.0 LTMP data
May-98 25 < 2.0 1.0 LTMP data
Aug-98 26 < 2.0 1.0 LTMP data
Nov-98 27 < 2.0 1.0 LTMP data
LTMP data
Jun-99 28 < 2.0 1.0 LTMP data
LTMP data
Nov-99 29 < 2.0 1.0 LTMP data
Mar-00 30 3.0 3.0 LTMP data
Apr -CO 31 < 2.0 1.0 LTMP data
Aug-00 32 < 2.0 1.0 LTMP data
Oct-00 33 < 2.0 1.0 LTMP data
Feb-02 34 < 2.0 1.0
May-02 35 < 2.0 1.0

0
WAirs..(S...hid.)W TP
NE0003973
12
10000
9T.WLRLSUL7S
171S
0A
RESULTS
Std 13n.
Ma.
CV.
!Sorbs
.(6W pima
1Ri3
.ode Ana .
11n. V.I.
11s.PodMora* LN.r
Cb
22.6665
163
1.3713
33
27
3321
14201KA
674.5
1601of
is....r..
Zr
16.0
1A1. ■ < Moat wt. Ot10. 1OL
4.93
Fb91
11rA1
A1A1
14,93
1+.91
1. 91
A..92
Sq.91
0m91
14.41
0.v91
1..99
F.s99
21,99 1 20.0 20A
A,91
1S.7A3
2,99 2 ILO 12A
MA)
A.1A3
5.p99 3 < 10.0 1.0
On*9
S..49 4 2913 290
O.o99
2,00
F.b-00
21,03 3 17A 17.0
Ap-00 6 < 000 SA
21.740
h.00
h1-00
00400 7 < 10.0 5.0
Sq.00
0,03 3 10A 10A
00.-00
13.c03
1.►01 9 11.0 11.0
i4601 10 13A 15.0
3.1rA1 I l 27.0 27.0
A001 12 130 13.0
21,01 13 10.0 10.0
14.01 16 120 12A
1d-01 13 140 14A
Mg-01 16 1.3A 143.0
3<p01 17 < 100 5.0
0.01 11 < 100 30
24,01 19 13A 13A
13a01 20 1. 16.0
A o97 21 17.0 17.0 LTMPdo1a
A.197 22 10A 100 LIMPdala
0.w97 23 11.0 I1A LIMP data
11.A1 24 ILO 11.0 LIMPdol
2187.93 73 ISA 130 LTMP Oslo
Ag43 26 12A 120 LTMPdola
mugs 27 < 100 3.0 LTMPdata
CRAP data
2.6.99 23 12.0 12.0 LTM9dAt0
3.0 S.0 LTMPCS:IO
30.99 29 290 39.0 LIMPdota
1.4.03 30 17.0 17A LVYPds2o
A1.-00 31 < 100 3.0 LIMOOOt°
Aug. 32 c 100 5.0 LTMAdo}O
0040 33 too too LTMPdello
FYb.02 36 16.0 16.0
26.y02 23 13.0 160
44,02

Whole Effluent Toxicity Testing Self -Monitoring Summary
FACILITY REQUIREMENT
July 16, 2C
YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC
Williaosston WNTP Penn chr lim: 0.26%; ifpf2.4 chr lim 0.32% 1998 — — Pass — — Pass — Pass — — Pass
NC0020044/001 Begin:2/1/1998 Frequency: Q + Mar Jun Sep Dec + NonComp:Single 1999 — — Pass — — Pass — Late Pau — Pass
County: Martin Region: WARO Subbasin: ROA09 2000 — — Pass — Pass -- Pass -- Pass
PF: 2.0 Special 2001 — Pass — Pass Pass — Pass
7Q10: 1170 IWC(%):0.26 Order: 2002 — — Pass —
Wilmington Northside WWTP Penn 24hr p/fac lim: 90% D. puler Y 1998 — Pass — — Pass Pass.Fail — Pass
NC00239651001 Begin:8/1/1996 Frequency: Q + Feb May Aug Nov NonComp:Single 1999 — Pass — — Pass -- -- Pass -- Fail,Pass
County. New Hanover Region: WIRO Subbasin: CPFI7 2000 — NA/Pass — Pass — -- Pass Pass.Fail
PF: 8.0 Spacial 2001 — Pass — — Pass — -- Passsig — Pass
7Q10: Tidal IWC(%):NA Order: 2002 — Pass -- Pass
Wilmington Southside WWTP Perm 24hr p/f ac lim: 90% D. puler Y 1998 — — Pass — — Pass — -- Pass — Pass
NC0023973/001 Begin:9/1/1996 Frequency: Q + Mar Jun Sep Dec NonComp:Single 1999 — — Pass — — Fail Pass — Pass Pass
County. New Hanover Region: WIRO Subbasin: CPFI7 2000 — — Pass — — Pass -- -- Pass -- -- Pass
PF: 12.0 Special 2001 -. — Pass — — Pass Pass -- --- Pass
7Q10: 1149 IWC(%):1.59 Order: 2002 -- — Pass -- — Pass
Wilson Technical Community College Perm: 24hr LC50 ac monit epis fthd (Grab) 1998 >700
NC0084581/001 Begin:1/1/2001 Frequency: 5 OWD/A NonComp: 1999 -- — — — -- -. — NR/>100
County Wilson Region: RRO Subbasin: NEU07 2000 — — — H — — —
PF: 0.0144 Special 2001 — — --- — H
7Q10: 0.0 IWC(%):100 Order: 2002 -.. -- --- — H
Wilson WWTP Penn chr lim: 90% 1998 — Pass(s) — --- Pass(s) — -- Pass(s) — -- Pass(s)
NC0023906/001 Begin:9/I/2000 Frequency: Q Feb May Aug Nov + NonComp:Single 7999 — Pass(s) — --- Pass(s) — -- Pass(s) — — Pass(s) —
County: Wilson Region: RRO Subbasin: NEU07 2000 — Pass(s) — Pass(s) -- — Pass(s) -- -- Pass(s) —
PF: 12.0 Special 2007 — Pass(s) Pau Pass(s) -- -- Fail(s) Lalei>100 >100(s) Fails) 335,>100
7Q10: 0.5 1WC(%):97.37 Order: 2002 >100(s) Pass(s) — Pass(s)
Windsor WWTP PERM CHR LIM: 90% 1998 Late Pass Pass -- Pass --- — Pass
NC0026751/001 Bcgin:6/1/1997 Frequency: QP/F + Jan Apr Jul Oct + NonComp:SINGLE 1999 Fail Pass — Pass — -- Fail.Fail 82 Late >100
County: Bertie Region: WARO Subbasin: ROAIO 2000 >100 — — Pass — Pass — — Pass
PF: 1.15 Special 2001 pass — — Pass -- — Pass — — Pass
7Q10: 0.0 IWC(%):100 Oulu: 2002 Pass — — Pass —
Winston-Salem Archie Elledge WWTP Perm P-2 chr lim: 76%
NC0037834/001 Begin:8/I/1999 Frequency: Q Jan Apr Jul Oct
County: Forsyth Region: WSRO Subbasin: YADO4
PF: 30 Special
7Q10: 15.0 IWC(%):75.6 Order:
1998 >96
NonComp:ChV Avg 1999 >96
2000 >96
2001 >g6
2002 80.9
>96
>96
>96
>96
>96
— — >96 — — >96
— — >96 -- — >96
— — >96 -- >96
— — >96 — — 80.8
Winston-Salem Lower Muddy Crk Perm P-2 chr lim: 5.5% 1998 >22 — — >22 — — >22 — — >22
NC0050342/001 Begin:7/1/1999 Frequency: Q Jan Apr Jul Oct + NonComp:ChV Avg 1999 >22 — — >22 — — >22 — >22
County: Forsyth Region: WSRO Subbasin: YADO4 2000 >22 — — >22 — — >22 — — 15,56
PF: 21.0 Special 2001 >22 — — >22 — — >22 — >22
7Q10: 554.0 IWC(%):5.5 Order. 2002 3.89 >22 >22 >22 —
WoodliioSanitary WTP Penn chr lim: 8% (Grab)
NC0083178/001 Begin:12/1/2000 Frequency:Q Jan Apr Jul Oct
County Buncombe Region: ARO Subbasin: FRB02
PF:.03375 Special
7Q10: 0.61 1WC(%):8.0 Order:
+ NonComp:Single
1998 Late Pass — Late Fall NR Pass -- — Late Fail Pass
1999 Pass — — NR — 81 Pass -- — Pass — —
2000 Pass — — Pass — — Pass -- — Pass
2007 Pass — — Pass — — Fail >20 >20 Pass
2002 Pass -- Pass —
Wright Chemical Corp/002 Perm chr lim: 34% 1998 — Pass
NC0003395/002 Begin:11/1/2000 Frequency: Q Feb May Aug Nov + NonComp: Single 1999 -- Passsig
County: Columbus Region: WIRO Subbasin: CPFI7 2000 — Pass
PF: 0.2 Special 2001 48.1 Pass —
7Q10: 0.6 IWC(%)34 Order: 2002 — late Pass
Pass
NR/Pass
Pass
Pass
Pass
Pass — — Pass
Late Late Pass Pass
Pass -- — Fail >90
Pass — Pass —
Y Pre 1998 Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Letter - Target Frequency = Monitoring frequency. Q- Quarterly; M- Monthly; BM- Bimonthly; SA- Semiannually; A- Annually, OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First momh required 7Q10 = Receiving stream low flow criterion (cfs) += quanedy monitoring increases to monthly upon failure or NR Months that testing must occur- ex. Jan, Apr. Jul. Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) IWC%= Instream waste concentration P/F = Pass/Fail test AC = Acute CHR = Chronic
Data Notation: f - Fathead Minnow; ' - Ceriodaphnia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; bt - Bad test
Reporting Notation: -- = Data not required; NR - Not reported Facility Activity Status: 1 - Inactive, N - Newly Issued(To constmct); 11 - Active but not discharging; t-More data available for month in question; • = ORC signature needed
54

NC DENR - DIVISON OF WATER QUALITY
.0311 CAPE FEAR RIVER BASIN
2B .0300
Name of Stream
Description
Class
Classification
Date Index No.
Weyman Creek
Copper Smith Branch
Turkeypen Branch
Turner Branch
Beaverdam Creek
Horsepen Branch
Double Branch
CAPE FEAR RIVER
fc3
CAPE FEAR RIVER
Livingston Creek
(Broadwater Lake)
Gapway Creek
Gapway Swamp
Poplar Branch
Scott Branch
McClennen Branch
Terrapin Branch
Boggy Branch (Chapel
Creek)
Johns Branch
Taylor Branch
Dans Creek
All connecting drainage
canals
Mill Creek
From source
River
From
From
From
From
From
Creek
source
source
source
source
source
From source
River
to Cape Fear WS-IV Sw 08/03/92 18-61
to Weyman Cree
to Weyman Cree
to Weyman Cree
to Weyman Cree
to Beaverdam
WS-IV Sw
WS-IV Sw
WS-IV Sw
WS-IV Sw
WS-IV Sw
08/03/92 18-61-1
08/03/92 18-61-2
08/03/92 18-61-3
08/03/92 18-61-4
08/03/92 18-61-4-1
to Cape Fear WS-IV Sw 08/03/92 18-62
From a point 0.5 mile
upstream of raw water
supply intake at Federal
Paper Board Corporation
(Riegelwood) to raw water
supply intake at Federal
Paper Board Corporation
(Riegelwood), located 0.6
mile upstream of Livingsto
Creek
From raw water supply
intake at Federal Paper
Board Corporation
(Riegelwood) to upstream
mouth of Toomers Creek
,148--13.1-Sw- CA- 08 / 03 / 9 .
66 2-fx am p&�
(-41 'JiL)
04/01/59 18-(63)
From source to Cape Fear C Sw 03/01/77 18-64
River
From source to Livingston C Sw 04/01/59 18-64-2
Creek
From source
From source
Creek
to Gapway Cree
to Livingston
C Sw 04/01/59 18-64-2-1
C Sw 04/01/59 18-64-3
From source to Livingston C Sw 04/01/59 18-64-4
Creek
From source
From source
From source
Creek
to Scott Branc
to Scott Branc
to Livingston
C Sw 04/01/59 18-64-4-1
C Sw 04/01/59 18-64-4-2
C Sw 04/01/59 18-64-5
From source to Livingston C Sw 09/01/74 18-64-6
Creek
From source to Johns Branc
From source to Livingston
Creek
C Sw 09/01/74 18-64-6-1
C Sw 04/01/59 18-64-7
From source to Dans Creek C Sw 09/01/74 18-64-7-1
From source to Dans Creek C Sw 04/01/59 18-64-7-2
44

•
•
CAPE FEAR RIVER BASIN
Name of Stream
Subbasin Stream Index Number Map Number Class
Bulldog Cut CPF20 18-68-23 J26SE2 C Sw
Bullhead Branch CPF20 18-68-18-1 I26NW9 C Sw
Bulltail Creek CPF20 18-68-18-2 I26NW9 C Sw
Bulltail Creek CPF22 18-74-29-3-1 H26SW7 C Sw
Burdens Creek CPF05 16-41-1-17-1-(0.3) D23NW9 C NSW
Burdens Creek CPF05 16-41-1-17-1-(0.7) D23NW9 WS-IV NSW
Burgaw Creek CPF23 18-74-39 I27SW6 C Sw
Burn Coat Creek (Maxwell Millpond) CPF22 18-74-17 G27SE5 C Sw
Burnt Mill Creek CPF23 18-74-63-2 K27NW2 C Sw
Burris Creek CPF17 18-88-8-2-3 L27NW7 SA HQW
Bush Creek CPF05 16-41-4-(0.3) D22SE5 WS-IV NSW
Bush Creek CPF05 16-41-4-(0.7) D22SE5 WS-IV NSW CA
Bush Creek CPF09 17-15 D2OSW7 C
Bush Creek CPF07 18-6 E22SE9 C
Butler Branch CPF14 18-23-16-8-3 F22SW4 WS-III
Butler Creek CPF24 18-87-18 J28SW4 SA ORW
Buttermilk Creek CPF02 16-14-5 C2ONE3 WS-II HQW NSW
Buxton Branch CPF20 18-68-18-9 I26SE4 C Sw
Buzzard Bay CPF17 18-88-8-2 L27NW7 SA HQW
Buzzard Branch CPF15 18-28-3 G23SE7 C
CAPE FEAR RIVER CPF07 18-(1) E22SE2 WS-IV
CAPE FEAR RIVER CPF11 18-(1) E22SE2 WS-IV
CAPE FEAR RIVER CPF07 18-(4.5) E22SE6 WS-IV CA
CAPE FEAR RIVER CPF07 18-(5.5) E22SE6 WS-V
CAPE FEAR RIVER CPF07 18-(10.5) E23SW8 WS-IV
CAPE FEAR RIVER CPF07 18-(16.3) F23NE8 WS-IV CA
CAPE FEAR RIVER CPF07 18-(16.7) F23NE8 WS-IV
CAPE FEAR RIVER CPF13 18-(16.7) F23NE8 WS-IV
CAPE FEAR RIVER CPF07 18-(20.3) F24SW5 WS-IV CA
CAPE FEAR RIVER CPF13 18-(20.3) F24SW5 WS-IV CA
CAPE FEAR RIVER ^ CPF14 18-(20.3) F24SW5 WS-IV CA
CAPE FEAR RIVER r ` / CPF07 18-(20.7) F24SW5 WS-V
CAPE FEAR RIVER18-(20.7) F24SW5
CPF15 18-(20.7)
F24SW5 WS-V
CAPE FEAR RIVER
CAPE FEAR RIVER V - CPF15 18-(23.5) G24NW4 WS-IV
CAPE FEAR RIVER r
�+ CPF15 18-(25.5) G23SE1 WS-IV CA
CAPE FEAR RIVER � 1�� CPF15 18 (26) G23SE4 C
I'CAPE FEAR RIVER r� CPF16 18-(26) G23SE4 C
CAPE FEAR RIVER
18-(49) I25SW4 WS-V
CAPE FEAR RIVER �' CPF16 13 :5')-- I25SW8 WS-IV
CAPE FEAR RIVER D0 CPF16 18-(58.5) ``• J25NE8 WS-IV CA
CAPE FEAR RIVER CPF16 18-(59) J 8 WS-IV Sw
CAPE FEAR RIVER CPF16 18-(62.5) J26SW1 WS-IV Sw CA
CAPE FEAR RIVER CPF17 18-(62.5) J26SW1 WS-IV Sw CA
CAPE FEAR RIVER CPF17 18-(63) J26SW1
CAPE FEAR RIVER CPF20 18-(63) J26SW1
CAPE FEAR RIVER CPF17 18-(71) J27SW7
CAPE FEAR RIVER (excluding area described CPF17 18-(87.5) L27NW1
below)
SC
SA HQW
Cabin Branch CPF15 18-31-8 G21SE5 C
Cabin Branch CPF21 18-74-8-3 G27NW6 C Sw
Cabin Branch CPF22 18-74-24-1-1-1 H26SE3 C Sw
Cabin Creek CPF10 17-26-5-(1) F20SW1 WS-III
Cabin Creek CPF10 17-26-5-(7) F2ONE4 WS-III CA
Pag 5 of 30

DMR VIOLATIONS for:
PERMIT: NC0023973
FACILITY: City of Wilmington - Southside WWTP
COUNTY: New Hanover
Page: 1 of 3
Report Date: 07/02/02
REGION: Wilmington
Limit Violation
DMR OUTFALL LOCATION PARAMETER
03 -1999 001 Effluent BOD, 5-DAY (20 DEG. C)
03 -1999 001 Effluent BOD, 5-DAY (20 DEG. C)
04-1999 001 Effluent BOD, 5-DAY (20 DEG. C)
05-1999 001 Effluent BOD, 5-DAY (20 DEG. C)
10-1999 001 Effluent BOD, 5-DAY (20 DEG. C)
Monitoring Violation
VIOLATION
DATE
03/27/99
03/31/99
04/30/99
05/01/99
10/31/99
UNIT OF
FREQUENCY MEASURE
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
LIMIT
45
30
30
45
30
CALCULATED
VALUE VIOLATION TYPE
46 Weekly Average Exceeded
33.65 Monthly Average Exceeded
40.76 Monthly Average Exceeded
45.4 Weekly Average Exceeded
32.2 Monthly Average Exceeded
DMR OUTFALL LOCATION
09-2001 001 Effluent
10-2001 001 Effluent
12-2001 001 Effluent
12-2001 001 Effluent
12-2001 001 Effluent
09-2001 001 Effluent
12-2001 001 Effluent
12-2001 001 Effluent
12-2001 001 Effluent
09-2001 001 Effluent
12-2001 001 Effluent
PARAMETER
BOD, 5-DAY
BOD, 5-DAY
BOD, 5-DAY
BOD, 5-DAY
BOD, 5-DAY
(20 DEG. C)
(20 DEG. C)
(20 DEG. C)
(20 DEG. C)
(20 DEG. C)
CHLORINE, TOTALRESIDUAL
CHLORINE, TOTALRESIDUAL
CHLORINE, TOTALRESIDUAL
CHLORINE, TOTALRESIDUAL
COLIFORM, FECAL MF, M-FC
BROTH,44.5C
COLIFORM, FECAL MF, M-FC
BROTH,44.5C
VIOLATION
DATE
09/03/01
10/18/01
12/24/01
12/25/01
12/26/01
09/03/01
12/24/01
12/25/01
12/26/01
09/03/01
UNIT OF
FREQUENCY MEASURE
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays ug/1
Daily -- weekdays ug/1
Daily -- weekdays ug/1
Daily -- weekdays ug/1
Daily -- weekdays #/100m1
12/24/01 Daily -- weekdays #/ 100m1
LIMIT
CALCULATED
VALUE
VIOLATION TYPE
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation

DMR VIOLATIONS for:
c0028973`
Page: 2 of 3
Report Date: 07/02/02
PERMIT: NC0023973 FACILITY: City of Wilmington - Southside WWTP
COUNTY: New Hanover
REGION: Wilmington
Monitoring Violation
DMR
12- 2001
12-2001 001
09-2001 001
12-2001 001
12-2001 001
12-2001 001
09-2001 001
12-2001 001
12-2001 001
12-2001 001
Reporting Violation
OUTFALL LOCATION PARAMETER
001 Effluent COLIFORM, FECAL MF, M-FC
BROTH,44.5C
Effluent
COLIFORM, FECAL MF, M-FC
BROTH,44.5C
Effluent PH
Effluent PH
Effluent PH
Effluent PH
Effluent SOLIDS, TOTAL SUSPENDED
Effluent SOLIDS, TOTAL SUSPENDED
Effluent SOLIDS, TOTAL SUSPENDED
Effluent SOLIDS, TOTAL SUSPENDED
VIOLATION
DATE
12/25/01
FREQUENCY
Daily -- weekdays
12/26/01 Daily -- weekdays
09/03/01
12/24/01
12/25/01
12/26/01
09/03/01
12/24/01
12/25/01
12/26/01
UNIT OF
MEASURE
#/100m1
#/100m1
Daily -- weekdays su
Daily -- weekdays su
Daily -- weekdays su
Daily -- weekdays su
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/1
Daily -- weekdays mg/I
LIMIT
CALCULATED
VALUE
VIOLATION TYPE
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
Frequency Violation
DMR
11-2001
12-2001
11-2001
12-2001
OUTFALL
001
001
LOCATION
Effluent
Effluent
001 Effluent
001
11-2001 001
Effluent
Effluent
PARAMETER
CHROMIUM, TOTAL (AS CR)
CHROMIUM, TOTAL (AS CR)
COD, Oxygen Demand, Chem.
(High Level)
COD, Oxygen Demand, Chem.
(High Level)
LEAD, TOTAL (AS PB)
12-2001 001 Effluent LEAD, TOTAL (AS PB)
VIOLATION
DATE
11/30/01
12/31/01
11/30/01
FREQUENCY
Monthly
Monthly
Weekly
12/31/01 Weekly
11/30/01 Monthly
12/31/01 Monthly
UNIT OF
MEASURE
mg/1
mg/1
mg/1
mg/1
mg/1
mg/1
LIMIT
CALCULATED
VALUE
VIOLATION TYPE
Parameter Missing
Parameter Missing
Parameter Missing
Parameter Missing
Parameter Missing
Parameter Missing

DMR VIOLATIONS for:
PERMIT: NC0023973
FACILITY: City of Wilmington - Southside WWTP
COUNTY: New Hanover
Page: 3 of 3
Report Date: 07/02/02
REGION: Wilmington
Reporting Violation
VIOLATION UNIT OF CALCULATED
DMR OUTFALL LOCATION PARAMETER DATE FREQUENCY MEASURE LIMIT VALUE VIOLATION TYPE
11- 2001 001 Effluent NICKEL, TOTAL (AS NI) 11/30/01 Monthly mg/1 Parameter Missing
12-2001 001 Effluent NICKEL, TOTAL (AS NI) 12/31/01 Monthly mg/1 Parameter Missing
11-2001 001 Effluent P/F STAT 48HR ACU 11/30/01 Quarterly pass/fail Parameter Missing
CERIODAPHNIA
12-2001 001 Effluent P/F STAT 48HR ACU 12/31/01 Quarterly pass/fail Parameter Missing
CERIODAPHNIA
11-2001 001 Effluent P/FSTAT 24HR ACU 11/30/01 Quarterly pass/fail Parameter Missing
PIMEPHALES
12-2001 001 Effluent P/FSTAT 24HR ACU 12/31/01 Quarterly pass/fail Parameter Missing
PIMEPHALES
11-2001 001 Effluent P/FSTAT 48HR ACU D. PULEX 11/30/01 Quarterly pass/fail Parameter Missing
12-2001 001 Effluent P/FSTAT 48HR ACU D. PULEX 12/31/01 Quarterly pass/fail Parameter Missing
11-2001 001 Effluent SILVER, TOTAL (AS AG) 11/30/01 Monthly mg/I Parameter Missing
12-2001 001 Effluent SILVER, TOTAL (AS AG) 12/31/01 Monthly mg/1 Parameter Missing
11-2001 001 Effluent SOLIDS, SETTLEABLE 11/30/01 Daily -- weekdays ml/1 Parameter Missing
12-2001 001 Effluent SOLIDS, SETTLEABLE 12/31/01 Daily -- weekdays ml/1 Parameter Missing
11-2001 001 Effluent SOLIDS, TOTAL 11/30/01 Weekly mg/1 Parameter Missing
12-2001 001 Effluent SOLIDS, TOTAL 12/31/01 Weekly mg/1 Parameter Missing
11-2001 001 Effluent ZINC, TOTAL (AS ZN) 11/30/01 Monthly mg/1 Parameter Missing
12-2001 001 Effluent ZINC, TOTAL (AS ZN) 12/31/01 Monthly mg/1 Parameter Missing

Whole Effluent Toxicity Testing Self -Monitoring Summary June 14, 2C
FACILITY REQUIREMENT YEAR JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DLC
Williams Terminals Holdings-G'boro Perm 24hr LC50 ac monh epic fthd (Grab) 1998 >100 — —
NC0003671/001 Begin:171/2002 Frequency: A NonComp: 1999 -- 53.76
County. Guilford Region: WSRO Subbasin: CPF02 2000 >100 —
PF: NA Special 2001 — — —
7Q10: 0.0 IWC(%):100 order: 2002 — >100 —
Williamston WWTP Perm chr lim: 0.26%; if pf 2.4 chr lim 0.32% 1998 — — Pass — Pass Pass --- Pass
NC0020044/001 Begin:2/1/1998 Frequency: Q + Mar Jun Sep Dec + NonComp:Single 1999 — — Pass — Pass -- — Late Pass -- Pass
County. Martin Region: WARO Subbasin: ROA09 2000 — — Pass — — Pass — Pass — — Pass
PF: 2.0 Special 2001 — — Pass — Pass -- — Pass — Pass
7Q10: 1170 IWC(%):0.26 Order: 2002 — — Pass —
Wilmington \urthsideWWTP Penn 24hrp/faclim: 90%D.pulex Y 1998 — Pass — Pass — Pass.Fail — -- Pass
NC0023965100) Begin:8/1/1996 Frequency. Q + Feb May Aug Nov NonComp:Singlc 1999 — Pass — — Pass — — Pass -- — Fail.Pass
County. New Hanover Region: WIRO Subbasin: CPFI7 2000 — NR/Pass — — Pass — Pass -- --- Pass,Fail
PF: 8.0 Special 2001 — Pass — Pass — — Passsig — — Pass
7Q10: Tidal IWC(%):NA Order: 2002 — Pass — Pass
Wilmington Southside WWTP Perm 24hr p/face lim: 90%D. pules Y 1998 — — Pass — — Pass — — Pass -- Pass
NC0023973/001 Begin:9/1/I996 Frequency: Q + Mar Jun Sep Dec NonComp:Single 1999 — — Pass — Fall Pass Pass -- — Pass
County New Hanover Region: WIRO Subbasin: CPFI7 2000 — — Pass — Pass — Pass ••- Pass
PF: 12.0 Spacial 2001 -- — Pass — Pass — Pass Pass
7Q10: 1149 IWC(%):I.59 Order: 2002 -- — Pass
Wilson Technical Community College Penn: 24hr LC50 ac monit epis fthd (Grab) 1998 >100 — — — — — — — —
NC0084581/001 Begin:1/1/2001 Frequency: 5 OWD/A NonComp: 1999 — — — -- — — — — NR/>100
County. Wilson Region: RRO Subbasin: NEU07 2000 — — — — H
PF: 0.0144 Special 2001 — — — — H
7Q10: 0.0 IWC(%):100 Order: 2002 — — —
Wilson WWTP Perm chr Iim: 90% 1998 — Pass(s) — — Pass(s) — — Pass(s) — — Pass(s) —
NC0023906/001 Begin:9/1/2000 Frequency: Q Feb May Aug Nov + NonComp:Single 1999 — Pass(s) — Pass(s) — — Pass(s) — Pass(s) —
County. Wilson Region: RRO Subbasin: NEU07 2000 — Pass(s) -- — Pass(s) — -- Pass(s) -- — Pass(s) —
PF: 12.0 Spacial 2001 — Pass(s) Pass — Pass(s) -- -- Fail(s) Lale/>100 >100(s) Fail(s) 33.5,>100
7Q10:0.5 IWC(%)97.37 Order: 2002 >100(s) Pass(s) —
Windsor WWTP PERM CHR LIM: 90% 1998 Late Pass — Pass — Pass -- -- Pass
NC0026751/00I Begin:6/1/1997 Frequency: Q P/F + Jan Apr Jul Oct + NonComp:SINGLE 1999 Fail Pass Pass — FaiI,Fail 82 Late >100
County: Bettie Region: WARO Subbasin: ROAIO 2000 >100 — — Pass — — Pass — — Pass
PF: 1.15 Special 2001 Pass — — Pass — — Pass — — Pass
7Q10: 0.0 IWC(%):100 Order: 2002 Pass — — Pass
Winston-Salem Archie Elledge WWTP Pam P-2 chr lim: 76% 1998 >96 — — >96 — — >96 — — >96 — —
NC0037834/001 Begin:8/I/1999 Frequency:Q Jan Apr Jul Oa NonComp:ChV Avg 1999 >96 — — >96 — — >96 — — >96 — —
Cotmty. Forsyth Region: WSRO Subbasin: YAD04 2000 >96 — — >96 — — >96 — — >96 — —
PF: 30 Special 2001 >96 — — >96 — — >96 — — 80.8
7Q10: 15.0 IWC(%):75.6 Order: 2002 80.9 — — >96
Winston-Salem Lower Muddy Crk Perm P-2 chr lim: 53% 1998 >22 — — >22 — — >22 — — >22 — —
NC00503421001 Begin:7/1/1999 Frequency: Q Jan Apr Jul Oct + NonComp:ChV Avg 1999 >22 — — >22 — >22 — — >22 — —
County, Forsyth Region: WSRO Subbasin: YADO4 2000 >22 — — >22 — >22 — — 15.56 — —
PF: 21.0 Spacial 2001 >22 — — >22 — — >22 — — >22 — —
7Q10:554.0 IWC(%)33 Order: 2002 3.89 >22 >22 >22
Woodfrn Sanitary WTP Penn chr lim: 8% (Gmb)
NC0083 I 78/001 Begin:12/1/2000 Frequency: Q Jan Apr Jul Oct
County. Buncombe Region: ARO Subbasin: FRB02
PF:.03375 Special
7Q10: 0.61 IWC(%)1.0 Order:
+ NonComp:Singk
1998 Late
1999 Pass
2000 Pass
2001 pass
2002 Pass
Pass
Late Fail NR Pass — — Late Fad Pass
NR — Bl Pass — — Pass — --
Pass — — Pass — — Pass — —
Pass — — Fail >20 >20 Pass — —
Pass
Y Pre 1998 Data Available
LEGEND:
PERM = Permit Requirement LET = Administrative Leiter - Target Frequency = Monitoring frequency: Q- Quarterly; M- Monthly; BM- Bimonthly; SA- Semiannually; A- Annually; OWD- Only when discharging; D- Discontinued monitoring requirement
Begin = First month required 7Q10 = Receiving stream low flow criterion (c(s) + = quarterly monitoring increases to monthly upon failure or NR Months that testing must occur - ex. Jan, Apr, Jul, Oct NonComp = Current Compliance Requirement
PF = Permitted flow (MGD) IWC% = Instream waste concentration P/F = Pass/Fail test AC = Acute CHR = Chronic
Data Notation: f - Fathead Minnow; • - Ceriodaphnia sp.; my - Mysid shrimp; ChV - Chronic value; P - Mortality of stated percentage at highest concentration; at - Performed by DWQ Aquatic Tox Unit; bt - Bad test
Reporting Notation: --- = Data not required; NR - Not reported Facility Activity Status: 1 - Inactive, N - Newly Issued(1•o construct); H - Active but not discharging; t-More data available for month in question; • = ORC signature needed
54

SOC PRIORITY PROJECT: NO
If Yes, SOC No.
To: NPDES Permits Unit
Water Quality Section
Attention: Joe Corporon
(Review Engineer)
Date: December 11, 2001
NPDES STAFF REPORT AND RECOMMENDATION
County: New Hanover
Permit No. NC0023973
PART I - GENERAL INFORMATION
1. Facility and Address:
City of Wilmington
Southside Wastewater Treatment Plant
Post Office Box 1810
Wilmington, North Carolina 28402
2. Date of Investigation: December 10, 2001
3. Report Prepared by: Edward Beck
4. Persons Contacted and Telephone Number:
Ken Vogt, Superintendent [phone]
Milton Vann, Operator [phone]
5. Directions to Site: The facility is located adjacent to the
Cape Fear River south of Wilmington on River Road
approximately 0.3 mile south of the intersection with NCSR
1117.
0
6. Discharge Point(s), List for all discharge points:
Latitude: 34 09' 56" Longitude: 77 56' 56"
-----
Attach a USGS map extract and indicate treatment facility site and
discharge point on map.
U.S.G.S. Quad No: T52 U.S.G.S. Quad Name: Wilmington
7. Site size and expansion area consistent with application? Yes
8. Topography (relationship to flood plain included): The site
is approximately 25 ft msl, sloping to the tidal river.

9. Location of nearest dwelling: Approximately 1,500 feet.
10. Receiving stream or affected surface waters: Cape Fear
River
a. Classification: Class SC - /63-66 �f?
b. River Basin and Subbasin No.: •6-06-17`
c. Describe receiving stream - es and pertinent
downstream uses: The river is tidal and is used for
shipping, commercial and sport fishing and recreational
boating. It is a primary nursery area.
PART II - DESCRIPTION OF DISCHARGE AND TREATMENT WORKS
1. a. Volume of Wastewater to be permitted: 12 MGD
b. What is the current permitted flow limit? 12 MGD
c. Actual treatment capacity of the current facility? 12 MGD
d. Date(s) and construction activities allowed by previous
Authorizations to Construct issued in the previous two
years: No Authorizations in past two years.
e. Please provide a description of existing or substantially
constructed wastewater treatment facilities: At the head
of the plant there is a vault that receives force main
interceptors and measures and combines the flows. The
headworks consists of a standby manual bar screen and
comminuter, dual mechanical bar screens, and dual
mechanical grit removal and storage units. Treatment
continues with a distribution box, dual primary clarifiers
with mechanical scrapers and skimmers, dual 180 ft
trickling filters, a short term aeration basin, a splitter
box, three screw lift pumps, dual secondary clarifiers, a
return activated sludge pump station, a flash mixer for
gas chlorine, dual chlorine contact chambers, an outfall
structure with flow meter, physical aeration and foam
control. There is a automatically activated generator and
enough portable generators to operate all lift stations.
The solids handling system consists of two gravity belt
dryers, two filter presses for dewatering, four digesters
with pump mixers, four three of which are heated, and a
covered storage area.
f. Please provide a description of proposed wastewater
treatment facilities: No changes are proposed for the
immediate future. Within the next five years the system
is to be upgraded and probably expanded.
g Possible toxic impacts to surface waters: Chlorine and
toxic constituents of industrial wastewater.
h. Pretreatment Program (POTWs only): approved

2. Residuals handling and utilization/disposal scheme:
a. If residuals are being land applied, please specify DWQ
Permit No. WQ0001271
Residuals Contractor: SYNAGRO
Telephone No.: [phone]
b. Residuals stabilization: PSRP
d. Other disposal/utilization scheme: The city also holds
Permit WQ0011869 for producing Class A biosolids.
3. Treatment plant classification: Grade IV
4. SIC Code(s): 4952
Wastewater Code(s) Primary: 01
Main Treatment Unit Code: 400 3
PART III - OTHER PERTINENT INFORMATION
1. Is this facility being constructed with Construction Grant
Funds or are any public monies (municipals only) involved? NA
2. Special monitoring or limitations (including toxicity)
requests:
3. Important SOC, JOC or Compliance Schedule dates: NA
4. Alternative Analysis Evaluation: Has the facility evaluated
all of the non -discharge options available? Please provide
regional perspective for each option evaluated.
Spray Irrigation: Difficult to find a site for this size
facility.
Connection to Regional Sewer System: This and the other city
facility are the largest systems in the region.
Subsurface: Not practical
PART IV - EVALUATION AND RECOMMENDATIONS
The system appears to be well operated and maintained.
Upgrades have been done and operational policies have been
implemented to assure that the facility performs efficiently. One
of the trickling filters utilizes plastic manufactured media rather
than stone in an attempt to improve performance. A short term
aeration basin has been installed following the trickling filters
to improve performance. The air concentration in the basin is
automatically controlled for optimum performance. All units in the
treatment system can be monitored and controlled from the office
control area by computer utilizing the SCADA system. The treatment

units and the grounds are clean and neat. The system performs well
for an older design secondary plant and effluent quality is
generally well within the permit limits.
The system operates at about 70 to 759,5 of the permitted flow
limit. While there is not an immediate need to expand the system,
partly because the city is working toward expansion of the
Northside plant, the city acknowledges that the aging Southside
plant will need to be upgraded in the next five years. The intent
is to build an expanded system at the time of the upgrade. A
design similar to the expansion plan for the Northside plant is to
be utilized in order to standardize the systems.
It is recommended that the permit be reissued for a period of
five years containing similar limits and monitoring requirements to
the existing permit. It should be noted that the city contracts
with the Cape Fear River Program for instream monitoring.
Q,,Q c�� /.Z --vt
Signature of Report Preparer Date
•
Water Quality Regional Supervisor Date
eb: nc23973.121
cc: Wilmington Regional Office
Central Files

CITY OF WILMINGTON
PUBLIC UTILITIES DEPARTMENT
July 2, 2001
Ms. Valery Stephens
Division of Water Quality- Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
P.O. Box 1810
WILMINGTON, NC 28402
TDD [phone]
Re: NPDES Permit Renewal Application Package
Permit Number NC0023973- Southside Wastewater Treatment Plant
Dear Ms. Stephens:
Enclosed is an application for renewal of NPDES Permit number NC0023973. This is
for Wilmington's Southside Wastewater Treatment Plant.
We hope that this submittal meetsall the requirements to have renewals issued before the
December 31, 2001 expiration date of the existing permits. If you have any questions, please
contact me at [phone].
Yours very truly,
/1-,--er-7leadee0
Hugh T. Caldwell, P.E.
Director of Public Utilities
Enclosures
cc: Kenneth L. Vogt, Jr., P.E., Superintendent of Wastewater Treatment
Douglas E. Carter, Utility Plant Supervisor
ADMINISTRATION ENVIRONMENTAL SERVICES UTIUTY SERVICES
VOICE [phone] VOICE [phone] VOICE [phone]
FAx [phone] FAx [phone] FAx [phone]
WASTEWATER TREATMENT
LOUGHUN PLANT MAFFr r PLANT
VocE [phone] VOICE [phone]
FAX [phone]
WATER TREATMENT
VOICE [phone]
FAX [phone]

• NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
SECTION I. APPLICATION AND FACILITY DESCRIPTION
Unless otherwise specified on this form all items are to be completed. If an item is not applicable indicate WA'.
North Carolina NPDES Permit Number NCO() 23973 (if known)
1. Applicant and facility producing discharge
This applies to the person, agency, firm, municipality, or any other entity that owns or is responsible for the permitted facility. This may or may not
be the same name as the facility or activity producing the discharge. Enter the name of the applicant as it is officially or legally referred to; do not
use colloquial names as a substitute for the official name.
Name of applicant / permittee: Hugh T. Caldwell, P.E., City of Wilmington
Mailing address:
Street address P.O. Box 1810
City Wilmington County New Hanover
State NC Zip Code 28402
Telephone Number ( 910 ) 341-7805
Fax Number ( 910 ) 341-5881
e-mail address hush.caldwellta'�I.ci.wilmington.nc.us
2. Mailing address of applicant's Authorized Agent / Representative:
Complete this section if an outside consulting firm/ engineering firm will act on behalf of the applicant / permittee
Engineer / Company name
Street address
City County
State Zip Code
Telephone Number
Fax Number
e-mail address
I certify that I am familiar with the information contained in this application and that to the best of my knowledge and belief such
information is true, complete, and accurate.
Hugh T. Caldwell, P.E.
Printed Name of Person Signing
Director of Public Utilities
Title
/— —77. , 7z6
Signatur= : Applicant or Authorized Agent Date Application Signed
North Carolina General Statue 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 $10,000, or by
imprisonment not to exceed six months, or by both. (18 U.S.C. Section 1001 provides a punishment by a fine or not more than $10,000 or imprisonment not more than 5
years, or both, for a similar offense.)
1 of 5

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
3. Permitted Facility Location:
Give the physical location of the facility where discharge(s) presently occur(s) or will occur.
Street address 3436 River Road
City Wilmington County New Hanover
State NC Zip Code 28412
Telephone Number ( 910 ) 799-5860
Fax Number ( 910 ) 791-4279
e-mail address douq.carteraci.wilmington.nc.us
4. Municipalities or Areas Served (see instructions
Enter the names of the municipalities or areas served by this facility. For each municipality enter the best estimate of actual population served at
the time of this application.
Name of community / Area
Actual Population Served
City of UVilmington
37,141
New Hanover County
37,478
Total Population Served
74,619
5. Average Daily Industrial Flow
Total estimated average daily flow from all industrial sources:
0.253 MGD
Total permitted monthly flow from all industrial sources: .245 MGD
Note: All Significant Industrial Users (as defined in Section III) discharging to the municipal system must be listed in Section III.
6. Facility Description
• Present Operating Status: Provide a narrative description of installed wastewater treatment components at the facility.
Include sizes & capacities for each component.
• Potential Facility Changes: Provide a narrative description of any planned upgrades / expansions / repairs planned for the
facility during the next five years. Do not include tasks associated with routine operation & maintenance.
• Schematic of wastewater flow: A line drawing of water flow through the facility must be attached to this application. The
schematic should show flow volumes at all points in the treatment process. Specific treatment components should be
identified.
• Location map: A map showing the location of each outfall must be attached to this application. The usual meridian arrow
showing north as well as the map scale must be shown. 0n all maps of rivers, the direction of the current is to be indicted by
an arrow. In tidal waters, the directions of the ebb and flow tides are to be shown. All outfalls should be identified with the
outfall number(s) used in Section II of this application. A copy of the relevant portion of a USGS topographic map is preferred.
All sheets should be approximately letter size with margins suitable for filing and binding. All pages should include facility location
and permit number (if available).
TTTTTTTTtttTTTttttTTTTTTT
2 of 5

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
6. Facility Description
PRESENT OPERATING STATUS:
The M'Kean Maffitt Wastewater Treatment Plant (Southside WWTP), owned and
operated by the City of Wilmington, currently provides wastewater treatment for a
design average flow of 12 million gallons per day (mgd). The Southside WWTP
serves the southern portion of the City of Wilmington and surrounding areas of
New Hanover County. Wastewater from the system is collected in pumping
stations throughout the City and County. Influent wastewater enters the plant
through bar screen and grit removal facilities. Flow is distributed to two treatment
trains consisting of one primary clarifier and trickling filter in each train. Each
train is rated at 6 mgd. The two primary clarifiers are provided to remove a
portion of the influent BOD5 and suspended solids in order to reduce the organic
loading on the biological treatment system. Primary clarifier effluent flows to the
two 180' diameter trickling filters, one with rock media and one with plastic
media, to provide a fixed film biological treatment of the wastewater. Effluent
from the trickling filters is combined in the trickling filter recirculation pump station
and pumped to the trickling filter influent. Effluent from the trickling filters in
excess of the recirculated flow flows by gravity to the aeration basin. The
aeration basin uses a coarse bubble diffused air aeration system to provide
additional biological treatment. The aeration basin provides an aerated detention
time of 1.06 hours at the design flow. Blowers located in the adjacent blower
building supply air to the diffuser system. Effluent from the aeration basin flows
through a junction box to the intermediate pump station wet well. Screw pumps
are utilized to provide sufficient hydraulic head for the remainder of the treatment
processes. At the discharge of the screw pumps, flow is distributed with weirs to
two secondary clarifiers. Activated sludge settles in the secondary clarifiers.
Retum activated sludge (RAS) flows by gravity to the aeration tank as required
by the biological process. RAS is mixed with the trickling filter effluent in the
aeration basin. Waste activated sludge (WAS) is pumped to the sludge
thickening facility. Scum is pumped from the secondary clarifiers to the primary
digester. Clear liquid above the settling solids overflows the secondary clarifier
effluent weirs and flows to the flash mixer and chlorine contact basins.
Secondary clarifier effluent in the chlorine contact basin is disinfected by the
addition of chlorine solution for the reduction of disease -causing bacteria.
Effluent from the chlorine contact tank flows through the effluent weir box to the
effluent structure at the Cape Fear River.
Primary sludge is pumped directly to anaerobic digestion. Secondary sludge is
pumped to the sludge thickening facility and on two (2) 2-meter gravity belt
thickeners. Thickened sludge is pumped to'a TWAS storage tank and is then
pumped to anaerobic digestion for stabilization. Anaerobic digestion is a four -
tank series operation. Stabilized sludge is pumped from the digesters to a

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
digested sludge storage tank for equalization prior to being dewatered on the belt
filter presses in the sludge facility. Dewatered cake solids from the belt filter
presses are disposed of off -site. Residuals from the Northside WWTP and the
Sweeney Water Treatment Plant are processed through the Northside belt filter
presses, segregated, and transported separately to Southside WWTP for
subsequent blending with Southside WWTP residuals to produce one Class B
residual product. Solids meeting Class B stabilization criteria are land applied in
a five -county area consistent with permit number WQ0001271. The City has
alkaline stabilization facilities at the Southside WWTP where cake solids can be
mixed with an alkaline material for further stabilization to Class A criteria before
eventual disposal consistent with permit WQ 0011869.
The current NPDES permit for the Southside plant allows the discharge of 12
mgd with a BOD5 concentration of 30 mg/I and a total suspended solids (TSS)
concentration of 30 mg/I. Northside historical performance data were analyzed
for the period from July 1996 to June 1999. Over the period effluent BOD5
concentrations averaged 22 mg/I and effluent TSS concentrations averaged 3
mg/I.
SOUTHSIDE WWTP
DESIGN DATA
12 MGD DESIGN CAPACITY
Bar Screens
Number of mechanical screens 2
Channel width 4 ft
Clear opening between bars 3/8 inch
Screenings Conveyor width 2 ft
Number of manual bar racks 1
Channel width 4 ft
Clear opening between bars 3/4 inch
Comminutor
Number 1
Average capacity of unit 19 mgd
Horsepower 2 HP
Grit Collector
Number 2
Type Detritor
Average capacity of each unit 5 mgd
Diameter 14 ft

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
Grit Classifier
Number
Type
Primary Clarifiers
Number
Type
Inside Diameter
Surface area, each
Total surface area
Surface overflow rate at design flow
Side water depth
Volume of each tank
Total volume
Detention time at design flow
Scum collector mechanism
Primary Scum Pumps
Number
Type
Influent Sampling
Number
Type
Trickling Filters
Number
Diameter
Type of media
Depth of media
Surface area, each
Total surface area
Hydraulic loading rate
BOD loading rate
Recirculation Pumps
Number
Type
Capacity
Horsepower
1
Reciprocating Rake
2
Circular; center feed
100 ft
7,854 ft2
15,708 ft2
765 gpd/ft2
12ft
0.70 million gal
1.41 million gal
2.82 hr
Scum beach
2
Submersible
1 (Influent)
1 (Primary Effluent)
Dipper
2
180 ft
One with rock media
One with plastic media
5.25 ft
25,450 ft2
50,900 ft2
0.164 gpm/ft2
45 lb/dayl1000 ft3
3
Vertical Turbine
1 — 4,200 gpm @ 21' TDH
2 — 4,200 gpm at 16' TDH
1 — 40 HP, 2 — 30 HP

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
Aeration Basin
Number
Diameter
Depth
Volume
Detention time at design flow
Type of aeration
Number of diffusers
Blowers
Number
Type
Capacity of each blower
Operating Pressure
Horsepower
Intermediate Pumps
Number
Type
Capacity
Lift
Horsepower
Final Clarifiers
Number
Type
Diameter
Surface area, each
Total surface area
Surface overflow rate at design flow
Side water depth
Total volume
Detention time at design flow
Type of solids removal system
Scum collector mechanism
Scum Pumps
Number
Type
Maximum capacity of each pump
Horsepower
1
95 ft
10ft
0.530 million gal
1.06 hr
Coarse bubble diffused air
216
3
Multi -Stage Centrifugal
2,000 icfm
5.6 psi
100
3
Screw
10,400 gpm
11.46 ft
50
2
Circular; center feed;
flocculator
105 ft
8,660 ft2
17,320 ft2
695 gpolft2
14 ft..
1.8 million gal
3.6 hr
Scrapers
Rotating scum pipe;
ducking skimmer
2
Submersible
26 gpm
2.

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
. Chlorine Cylinder Storage
Outside storage, number of spaces 15
Inside storage, number of spaces 19
Connected Cylinders 3
Chlorinators
Number 3
Capacity One —1,000 lb/day
Two — 500 lb/day
Chlorine Contact Tanks
Number 2 (Five -pass)
Length x Width x SWD (Each tank) 50' x 55' x 5.5'
Total volume 226,000 gal
Detention Time at Design Flow 27 min
Non -Potable Water Pumps
Number 2
Type Vertical Turbine
Capacity 400 gpm
TDH 117 ft
Horsepower 20 HP
Number 1
Type Self -Priming
Capacity 180 gpm
TDH 30 ft
Horsepower 5 HP
Effluent Flow Measurement
Type
Weir length
Weir level measurement
11ft
Effluent Sampling
Number 3
Type Dipper
Location Chlorine Building
Primary Sludge Pumps
Number 3
Type Plunger
Capacity 200 gpm
Total dynamic head 70 ft
Horsepower 5

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
Waste Activated Sludge Pumps
Number 2
Type Centrifugal
Capacity 230 gpm
Total Dynamic Head 55 ft
Horsepower 7.5
Number 1
Type Centrifugal
Capacity 200 gpm
Total Dynamic Head 70 ft
Horsepower 15
Gravity Belt Thickener
Number 2
Belt width 2 meters
GBT Polymer System
Type Dry, Manual Mix
Number of Tanks 2
Capacity per Tank 750 gal
Number of metering pumps 2
TWAS Screw Conveyor
Diameter 12"
Capacity 600 cfh
Thickened Waste Activated Sludge Pumps (From GBT to TWAS Storage)
Number 2
Type Plunger
Capacity 75 gpm
Total Dynamic Head 80 ft
Horsepower 5 HP
Thickened Waste Activated Sludge Storage Tank
Number 1
Length x Width x SWD 17.5' x 17.5' x 14'
Volume 32,000 gal
Type of Mixer Mechanical
Thickened Waste Activated Sludge Pumps (From TWAS Storage to
Digesters)
Number 2
Type Progressive Cavity
Capacity 50 gpm

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
Total Dynamic Head
Horsepower
Anaerobic Digesters
Number
Diameter
Maximum sidewater depth
Volume
Mixing System Type
Number of mixers
Diameter of mixers
Number
Diameter
Maximum sidewater depth
Volume, each
Total Volume
Mixing System Type (Digester 1 and 3 only)
Number of mixers, per digester
Diameter of mixers
Digester Recirculation Pumps
Number
Type
Capacity
Total Dynamic Head
Horsepower
Number
Type
impeller
Capacity
Total Dynamic Head
Horsepower
Digester Transfer Pump
Number
Type
Capacity
Horsepower
Sludge Heat Exchangers
Number
Capacity
15ft
3
1
85 ft
25 ft
1.06 million gal
Cannons
7
30
3
60 ft
18ft
381,000 gal
1.14 million gal
Cannons
6
18
2
Horizontal non clog
150 gpm
46 ft
15
1
Horizontal recessed
360 gpm
26 ft
10
1
Centrifugal
700 gpm
15
3
Two @ 375,000 BTU
One @ 1,500,000 BTU

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
Digester Gas Storage
Type
Location
BFP Feed Pumps
Number
Type
Capacity
TDH
Belt Filter Presses
Number
Belt width
BFP Polymer System
Type
Number of Mixing Tanks
Number of Storage Tanks
Cake Unloading Station
Number of Hoppers
Number of Screw Conveyors
Number of Belt Conveyors
Lime Stabilization System
Lime Silo
Number
Lime Conveyor
Number
Type
Sludge/Lime Mixer
Number
Type
Sludge Storage Pad
Total area
Covered area
Standby Generator
Capacity
Voltage
Fuel Tank
Gas Holder Cover
Digester No. 2
3
Progressive Cavity
200 gpm
45 ft
2
2.0 meter
Dry; manual mix
2
4
1
1
1
1
1
Screw
1
Dual Screw
1.05 ac
0.61 ac
400 kW
480 V
1,000 gal

Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
POTENTIAL FACILITY CHANGES:
The M'Kean Maffitt Wastewater Treatment Plant (Southside WWTP) is
anticipated to undergo planned upgrades / expansions / repairs during the next
five years as follows:
Plant Upgrade at 12 MGD
The City of Wilmington and New Hanover County are jointly developing regional
wastewater infrastructure to meet future demands. A major wastewater master
planning effort has been completed jointly which recommended that additional
regional wastewater capacity be developed by expansion of the Northside
WWTP to 16 MGD. The Southside plant is not expected to be expanded beyond
12 MGD during the next five years, however, the City may elect to initiate a
general upgrade project to address treatment capabilities and aging
infrastructure issues at the plant.

PLOT DATE 04/19/00 3:46pm FILE= H: \30374\SOUTHSIDE\FIGURES\001 by PTLAWANSON XREF FILE a NONE
INFLUENT
-WASTEWATER
BAR SCREENS/
GRIT REMOVAL
FACILITY off -
Tr]
H
CLARIFIER
DISTRIBUTION
BOXES
PRIMARY
CLARIFIER
_J
PS
PRIMARY
CLARIFIER
PS
TRICKLING
FILTER
TRICKLING
FILTER
TRICKLING FILTER
RECIRCULATION
INTERMEDIATE
PUMP STATION
RECIRCULATION
PUMP STATION
AERATION
TANK
RAS
SECONDARY
CLARIFIER
RAS
SECONDARY
CLARIFIER
RAS
0-
PRIMARY
SLUDGE
PUMP
STATION
TWAS
t - c
ANAEROBIC DIGESTER
DIGESTER GAS HOLDER
DIGESTER
BUILDING
ANAEROBIC
DIGESTER
ANAEROBIC
DIGESTER
TWAS
STORAGE
TANK
THICKENING
FACILITY
-FLASH
MIXER
BOX
UNDERDRAIN
PUMP STATION
WAS
DEWATERING
FACILITY
0
WAS PUMP
STATION
Southside WWTP
3436 River Road
Wilmington, NC 28412
NC0023973
_
OFF -SITE
SLUDGE
DISPOSAL
LIME
L STABILIZATION
FILTRATE FACILITY
PUMP STATION
CHLORINE
CONTACT
BASIN
CAPE
FEAR
RIVER
CITY OF WILMINGTON
SOUTHSIDE WASTEWATER TREATMENT PLANT

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 11. BASIC DISCHARGE DESCRIPTION
Complete this section for each present (or proposed) discharge indicated in Section I.
All values for an existing discharge should be representative of the twelve previous months of operation.
(If this is a proposed discharge, values should reflect best engineering estimates.)
1. Facility Discharges, Number and Discharge Volume
Specify the number of discharges described in this application and the volume of water discharged or lost to each of the categories below.
Estimate average volume per day in MGD. Do not include intermittent discharges, overflows, bypasses or seasonal discharges from lagoons, etc.
Discharge To: Number of Discharge Points Total Volume Discharged (MGD)
Surface Water
1
12.0
Other (describe below)
TOTAL
1
12.0
If 'other' is specified, describe:
2. Outfall Number: 001
Assign a three -digit number beginning with 001 for the point of discharge covered by the first description.. Discharge serial numbers should be
consecutive for each additional discharge described; hence, the second serial number should be 002 , the third 003, etc.
3. Discharge to End Date
If the discharge is scheduled to cease within the next 5 years, give the date (within best estimate) the discharge will end: N/A
Give the reason(s) for discontinuing this discharge in your cover letter.
4. Receiving Stream Name
Give the name of the waterway (at the point of discharge) by which it is usually designated on published maps of the area. If the discharge is to an
unnamed tributary, so state and give the name of the first body of water fed by that tributary which is named on the map, e.g., UT to McIntire Creek,
where McIntire Creek is the first water way that is named on the map and is reached by the discharge.
Cape Fear River
5. Outfall Structure
Describe the outfall structure and any significant changes since the last permit was issued (repairs, shoreline maintenance, etc.).
Direct gravity pipe discharge
3 of 5

' f,
NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 1I1. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 111 for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU New Hanover Regional Medical Center
Street address 2131 South 17th Street
City Wilmington County New Hanover
State NC Zip Code 28402
Telephone Number ( 910 ) 343-7094
Fax Number ( 910 ) 343-7350
e-mail address
chip.pfifer(a�nhhn.org
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Patients
Laundry
*
*
X-ray
*
*
Food service
*
*
Laboratory
*
*
* New Hanover Regional is unable to quantify the quantity or units of its raw materials.
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
0.185 MGD
❑ Intermittent XX Continuous
4 of 5

NC DENR / DWQ / NPDES PERMIT APPLICATION - STANDARD FORM A
Municipal Facilities with permitted flows > 1 MGD or with pretreatment programs
SECTION 111. INDUSTRIAL WASTE CONTRIBUTION TO MUNICIPAL SYSTEM
Submit a separate Section 11! for each Significant Industrial User.
1. Significant Industrial User (SIU)
An SIU has (or could have) significant impact on the POTW receiving the wastewater or upon the quality of effluent from the receiving POTW.
Specifically, an SIU:
• has a flow of 50,000 gallons or more per average workday;
• has a flow greater than 5 percent of the total flow carried by the municipal system m receiving the waste, or
• has a toxic material in its discharge.
It may be necessary to alter these administrative criteria in certain cases, such as an instance where two or more contributing industries in
combination can produce an undesirable effect on either the municipal facility or the quality of its effluent.
Name of SIU National Linen Service
Street address 1315 S. 5th Street
City Wilmington County New Hanover
State NC Zip Code 28403
Telephone Number ( 910 ) 763-2466
Fax Number ( 910 ) 762-5953
e-mail address
N/A
2. Primary Product or Raw Material
Specify either the principal product or the principal raw material and the maximum quantity per day produced or consumed.
Quantities are to be reported in the units of measurement for each SIC category at the facility. SIC categories should use the units of
measurement normally used by that industry.
Product
Raw Material
Quantity
Units
Laund ry
Soiled laundry
40,000-
50 000
Pounds
3. Flow
Indicate the volume of water discharged into the POTW and whether this discharge is intermittent or continuous
.06 MGD 0 Intermittent XX Continuous
5 of 5