WQ0005849_Correction_20080122

Michael F. Easley, Governor
William G. Ross Jr., Secretary
North Carolina Department of Environment and Natural Resources
Coleen H_ Sullins, Director
Division of Water Quality
January 22, 2008
RICHARD DURHAM -- REGIONAL DIRECTOR
NORTH TOPSAIL UTILITIES, INC.
POST OFFICE Box 240908
CHARLOTTE, NORTH CAROLINA 28224-0908
Subject: Permit No. WQ0005849
Permit Correction
North Topsail WWTF
Wastewater Treatment,
Irrigation and High -Rate
Infiltration System
Onslow County
Dear Mr. Durham:
In accordance with a written request received on January 22, 2008, we are forwarding herewith the
corrected page 1 of Attachment A in Permit No. WQ0005849, issued August 31, 2007, for the subject
facility.
The following corrections have been made to the permit:
The effluent limits in PPI 001 WWTF Effluent — Pre Construction (Sampling regimen prior to
completion of the permitted modifications) for BOD$, Fecal Coliforrrl, Ammonia (NH3), pH and
Total Suspended Solids have been removed. However, the sampling schedule remains the same.
Please replace Page I of Attachment A with the corrected Page I. into Permit No. WQ0005849,
issued August 31, 2007.
If you have any questions regarding this request, please do not hesitate to contact Nathaniel Thornburg at
[phone]. Thank you for your cooperation.
cc: Onslow County Health Department
Wilmington Regional Office, Aquifer Protection Section
Robert G. Burgin, PE — Burgin Engineering, Inc.
Technical Assistance and Certification Unit
APS Central Files
LAU Files
NoTr hCaro ina
�Vaturaly
Aquifer Protection Section 1636 Mail Service Center Raleigh, NC 27699-1636 Telephone: [phone]
Internet: www.ncwatergualipy.Location: 2728 Capital Boulevard Raleigh, NC 27604 Fax 1: [phone]
Fax 2: [phone]
An Equal Opportunity/Affirmative Action Employer— 50% Recycledl10% Post Consumer Paper Customer Service: [phone]

ATTACHMENT A - LIMITATIONS AND MONITORING REQUIREMENTS Permit Number: WQ0005849 Version: 2.1
PPI 001 WWTF Effluent — Pre Construction (Sampling regimen prior to completion of the permitted modifications)
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average Z
Weekly Average
Daily Maximum
Measurement
Frequency
Sample
Type
BOD, 5-Day (20 Deg. C) — 00310
2 x month
Composite
Chloride (as Cl) —00940
3 x year'
Composite
Chlorine, Total Residual — 50060
Daily (5 x week)
Grab
Coliform, Fecal MF, M-FC Broth, 44.5C — 31616
2 x month
Grab
Flow, in Conduit or thru Treatment Plant — 50050
873,500
gpd
Continuous
Recording
Nitrogen, Ammonia Total (as N) — 00610
2 x month
Composite
Nitrogen, Nitrate Total (as N) — 00620
2 x month
Composite
pH — 00400
Daily (5 x week)
Grab
Solids, Total Dissolved — 70300
3 x year
Composite
Solids, Total Suspended — 00530
2 x month
Composite
1. 3 x year: March, July and November
2. Monthly average for Fecal Coliform shall a geometric mean
WQ0005849 Version 2.1 Attachment A Page 1 of 4

PPI 002 WWTF Effluent -- Post Construction (Sampling regimen post completion of the permitted modifications)
EFFLUENT CHARACTERISTICS
EFFLUENT LIMITS
MONITORING REQUIREMENTS
Parameter Description - PCS Code
Monthly Average n
Weekly Average
Daily Maximum
Measurement
Frequency
Sample
Type
B01), 5-lay (20 Deg_ C) — 00310
10
mg/1
3 x week
Composite
Chloride (as Cl) — 00940
3 x year 1
Composite
Coliform, Fecal MF, M-FC Broth, 44.5C — 31616
14
9/100 ml
3 x week
Grab
Flow, in Conduit or thru Treatment Plant — 50050
1,159,297
gpd
Continuous
Recording
Nitrogen, Ammonia Total (as N) — 00610
4
nigh
3 x week
Composite
Nitrogen, Nitrate Total (as N) — 00620
10
mg/1
3 x week
Composite
Nitrogen, Total (as N) — 00600
7
mg/l
3 x week
Composite
pH — 00400
6-9
s.u.
Daily (5 x week)
Grab
Phosphorus, Total (as P) — 00665
3
mg/1
3 x week
Composite
Solids, Total. Dissolved — 70300
3 x year I
Composite
Solids, Total Suspended — 00530
15
mg/l
3 x week
Composite
Turbidity, HCH Turbidimeter — 00076
Continuous
Recording
1, 3 x year: March, July and November
2. Monthly average for Fecal Coliform shall a geometric mean
WQ000584> , ersion 2.1 Attachment A x 2 of 4