NC0021253_SPECULATIVE LIMITS_19950824

NPDES DOCUWENT SCANNING COVER SMELT
NPDES Permit: NC0021253
Havelock WWTP
Document Type: Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Engineering Alternatives Analysis
201 Facilities Plan
Instream Assessment (6713)
Speculative Limits
Permit
History
Document Date: August 24, 1995
This document is printed oa reuse paper-ignore any
content oa the reverse side

DIVISION OF ENVIRONMENTAL MANAGEMENPG 2 9 1995
I�Liii Yl bCi� v"v:Y'v'1i1 'J„lii.°�F7
AUGUST 24 , 1995
To: Carla Sanderson,Supervisor ,
Rapid Assessment Group
Attn: Farrell Keough, Environmental Modeler
Rapid Assessment Group
Through: Jim Mulligan, Regional Supervisor '
Division of Environmental Management co PJ '
Washington Regional Office
✓2
Through: Roger K. Thorpe, 'e,' -.
Regional Engineer
Water Quality Section
Washington Regional Office
From: Al Hodge, Environmental En ine r
Water Quality Section ��� _
Washington Regional Office
Subject: City of Havelock
Speculative Effluent Limits based on
Relocation of Discharge to Neuse River
Craven County
The region is glad to see the City of Havelock again
considering relocating it's point of discharge to the Neuse River
proper. However, there are some points in the proposed letter with
which we do not agree.
The Basin Wide Management plans, increased numbers of fish
kills, and algae blooms indicate water quality problems presently
1Oa exist in this area. However, the region does agree water quality
w� a.,°cntclwould be better served if this discharge could be relocated from
Slocum Creek to the Neuse River proper with its increase level of
dilution.
In an area where substandard dissolved oxygen levels have been
documented along with flow reversals caused by tidal influences the
region strongly believes that a discharge system is needed toy
1ZcoMMeud, maximize the dilution of the wastewater. Without a diffuser fresh
C(1W,)gx-z water being discharged into a saline system can become stratified
and travel long distances without mixing.

page 2
Speculative Limits
The letter requesting the speculative effluent limits has
ne�uc&T3 located the discharge points very close to the bank. The division
=tvL&xe.p.should be very clear that the location of the discharge point is
T*L) uPp,jp�- not the bank and is usualy determined by water depth in this area.
�ocMywl ,N qi�lfZ"Av-�
In addition to91 the Environmental Assessment noted in the
letter we should remind Havelock of the Evaluation of Discharge
RCS°N Alternatives to include reuse. The effluent limits proposed are
only a short distance(fecal coliform) from a quality suitable for
2EusE the reuse of treated wastewater. The construction of an improved
facility is the perfect opportunity top,/evaluate the posibility of
reusing wastewater(golf courses in the area, street washing,
roadway median spray irrigation, etc. ) .

City of Havelock Wastewater Treatment Plant:
HISTORY: In 1985, the City of Havelock requested an expansion of the wastewater treatment plant
from 1.25 MGD to 1.5 MGD. The limits developed for the facility at this time required that the City
meet advanced tertiary levels of treatment. The City was informed that modeling predicted that
advanced treatment would be required to protect the dissolved oxygen standard. Havelock documented
low dissolved oxygen in Slocum Creek and prior to additional expansion the Division committed to
further evaluation of the system.
The City initiated investigations on expansion of the wastewater treatment facility from 1.5 MGD to 2.5
MGD in 1987. Further evaluations of the water quality resulted in the Division advising the City that
the assimilative capacity at the location of the existing discharge point (East Prong of Slocum Creek)
was exhausted and no additional wastewater could be discharged at that location. The City was also
advised that the Division was uncertain as to whether nny assimilative capacity existed in Slocum
Creek,however, a monitoring program of Slocum Creek could be initiated if the City was interested in
pursuing the option of discharging downstream of the existing discharge point. The City chose to
pursue monitoring the creek
Based on the data collected by the City and Division staff, the determination was made that no
assimilative capacity existed in the entire Slocum Creek system. The Division recommended that
Havelock pursue relocation to the Neuse River for any expansion needs:
A request for expansion of the existing permitted discharge to Slocum Creek was received in 1991.
The City was again advised that as a result of the localized water quality problems including
stratification, anoxic conditions and algal blooms in the creek, the Division planned to proceed with
denial of the requested expansion. In response, Havelock chose to withdraw the application in 1992 to
pursue the option of a joint project with the base, relocating both discharges to the Neuse River through
one outfall/diffuser. However, as a result of the Base's and City's funding constraintstscheduling,
consolidation of the discharges was not able to be coordinated. Therefore, in November of 1992, the
City resubmitted a request for an expansion to 1.9 MGD. Extensive negotiations between Havelock
and the Division resulted in the issuance of a permit for the expansion to Slocum Creek in 1993. In
order to prevent further degradation of Slocum Creek, the permit contained limits for oxygen
consuming wastes which represent the most stringent issued in the state (CBODS = 3 mg/I and NH3 =
0.5 mg/1). In addition, nutrient limits for both total phosphorous and total nitrogen were given which
required implementation of state of the art treatment technology. Furthermore,Havelock was advised
that any future planning for additional wastewater needs and treatment plant expansions would require
relocation of the discharge from Slocum Creek.
RECENT ACTIVITIES: Havelock is currently evaluating the wastewater needs for the area. A
speculative modeling analysis for discharges of up to 3.15 MGD to the Neuse River was requested in
July 1995. Havelock also met with Division staff in August 1995 to discuss the potential of the
issuance of a conjunctive discharge/nondischarge permit to address the wastewater needs for the area.
The City is evaluating the feasibility of expanding the treatment capacity of the existing facility,while
maintaining the existing discharge volume and reusing the increased volume through spray irrigation on
area golf courses or developing a dedicated spray irrigation disposal site for the increasekvolume.

Havelock NCO021253
Time
Location Date Temperature DO Salinity 100%DO APHA w/Salinity Saturation
(Geidus) mgA ppt mpA % [APHA 8 Salinity]
Station 2 : 1 meter 10:30 AM 22 4.4 1 9.1 48.2%
Station 2 :2 meter 2-May-94 22 4.2 1 9.1 46.0%
Station 2 :3 meter 23 4.0 1 9.0 44.7%
Station 2 : 1 meter 10:30 AM 21 3.1 0.5 9.4 33.0%
Station 2 :2 meter 3-May-94 21 2.3 1 9.3 24.7%
Station 2 :3 meter 21 2.2 1 9.3 23.6%
Station 2 : 1 meter 10:30 AM 18 3.2 0 10.1 31.8%
Station 2 :2 meter 5-May-94 19 2.6 0 9.9 26.3%
Station 2 :3 meter 19 1.5 0.5 9.8 15.3%
Station 2 : 1 meter 11:00 AM 19 3.4 1.5 9.6 35.4%
Station 2 :2 meter 9-May-94 20 1.3 2 9.3 13.9%
Station 2 :3 meter 20 1.1 2 9.3 11.8%
Station 2 : 1 meter 10:30 AM 20 2.1 1.5 9.4 22.3%
Station 2 :2 meter 10-May-94 20 1.4 2 9.3 15.0%
Station 2 :3 meter 20 0.7 2 9.3 7.5%
Station 2 : 1 meter 10:30 AM 20 1.2 2 9.3 12.9%
Station 2 :2 meter 12-May-94 21 1.8 4 8.8 20.4%
Station 2 :3 meter 21 2.0 4.5 8.8 22.8%
Station 2 : 1 meter 10:30 AM 23 4.7 3 8.6 54.4%
Station 2 :2 meter 16-May-94 22 0.7 4 8.7 8.1 %
Station 2 :3 meter 22 0.1 4 8.7 1.2%
Station 2 : 1 meter 12:30 PM 24 11.4 2.75 8.5 133.8%
Station 2 :2 meter 17-May-94 23 0.1 4 8.5 1.2%
Station 2 :3 meter 22 0.1 4.25 8.6 1.2%
Station 2 : 1 meter 10:30 AM 22 9.8 2.5 8.9 110.2%
Station 2 :2 meter 18-May-94 22 0.2 4 8.7 2.3%
Station 2 :3 meter 22 0.1 4 8.7 1.2%
Station 2 : 1 meter 10:30 AM 20 0.3 4 9.0 3.3%
Station 2 :2 meter 23-May-94 18 4.2 4 9.4 44.7%
Station 2 :3 meter 18 4.5 4 9.4 47.9%
Station 2 : 1 meter 10:30 AM 20 2.0 4 9.0 22.2%
Station 2 :2 meter 24-May-94 18 5.3 4 9.4 56.5%
Station 2 :3 meter 18 5.2 4.5 9.3 55.9%
Station 2 : 1 meter 10:30 AM 20 4.0 4 9.0 44.4%
Station 2 :2 meter 25-May-94 18 3.1 4 9.4 33.0%
Station 2 :3 meter 18 2.9 4.5 9.3 31.2%

Time
Location Date Temperature DO Salinity 100%DO APHA w/Salinity Saturation
(Ceidm) nvA PPt tnqA % I APHA 8 Salinity i
Station 2 : 1 meter 11:00 AM 22 0.1 5 8.5 1.2%
Station 2 :2 meter 31-May-94 22 0.1 5 8.5 1.2%
Station 2 :3 meter 21 0.1 5 8.7 1.2%
Station 2 : 1 meter 10:30 AM 21 0.7 5 8.7 8.1 %
Station 2 :2 meter 1 Jun-94 21 0.2 5 8.7 2.3%
Station 2 :3 meter 21 0.1 5.5 8.6 1.2%
Station 2 : 1 meter 10:30 AM 25 0.4 6 7.9 5.1 %
Station 2 :2 meter 6Jun-94 23 0.2 6.5 8.1 2.5%
Station 2 :3 meter 21 0.1 7 8.4 1.2%
Station 2 : 1 meter 10:00 AM 25 0.4 5 8.0 5.0%
Station 2 :2 meter 7Jun-94 22 0.1 5.5 8.4 1.2%
Station 2 :3 meter 21 0.1 5 8.7 1.2%
Station 2 : 1 meter 12:30 PM 26 0.7 5 7.9 8.9%
Station 2 :2 meter 8Jun-94 24 0.1 5 8.2 1.2%
Station 2 :3 meter 1:00 PM 21 0.1 5 8.7 1.2%
Station 3 : 1 meter 1:30 PM 27 9.2 5.5 7.7 119.9%
Station 4: 1 meter 28 7.1 8 7.2 98.5%
Station 2 : 1 meter 10:00 AM 26 1.0 5 7.9 12.7%
Station 2 :2 meter 13Jun-94 25 0.2 5 8.0 2.5%
Station 2 :3 meter 22 0.1 5 8.5 1.2%
Station 2 : 1 meter 9:30 AM 27 3.1 5 7.7 40.0%
Station 2 :2 meter 14Jun-94 25 0.4 5.5 8.0 5.0%
Station 2 :3 meter 22 0.2 5.5 8.4 2.4%
Station 2 : 1 meter 11:00 AM 28 2.0 5 7.6 26.3%
Station 2 :2 meter 16Jun-94 25 0.2 5 8.0 2.5%
Station 2 :3 meter 22 0.2 4.5 8.6 2.3%
Station 2 : 1 meter 10:30 PM 27 3.2 3 8.0 39.9%
Station 2 :2 meter 20Jun-94 26 0.2 5 7.9 2.5%
Station 2 :3 meter 25 0.1 5 8.0 1.2%
Station 2 : 1 meter 10:00 AM 27 3.6 3 8.0 44.9%
Station 2 :2 meter 21Jun-94 26 0.2 5 7.9 2.5%
Station 2 :3 meter 24 0.1 5 8.2 1.2%
Station 2 : 1 meter 11:30 AM 28 6.8 3 7.9 86.3%
Station 2 :2 meter 23Jun-94 26 0.2 4.5 8.0 2.5%
Station 2 :3 meter 25 0.1 5 8.0 1.2%
Station 3 : 1 meter 12:00 PM 30 5.8 5 7.3 79.0%
Station 4 : 1 meter 31 6.8 8 6.8 99.4%

Havelock NCO021253
Time
Location Date Temperature DO Salinity 100%DO APHA w/Salinity saturation
(CalGua) m9n ppt men % I APHA 6 Saliniry]
Station 2 : 1 meter 10:30 AM 26 0.8 2.5 8.2 9.7%
Station 2 :2 meter 24Jun-94 25 0.1 4 8.2 1.2%
Station 2 : 1 meter 10:30 AM 25 2.7 3.5 8.2 32.7%
Station 2 :2 meter 28Jun-94 25 0.3 4 8.2 3.7%
Station 2 : 1 meter 2:30 PM 27 3.3 3 8.0 41.1 %
Station 2 :2 meter 30Jun-94 26 0.2 4.5 8.0 2.5%
Station 2 : 1 meter 11:00 AM 27 0.1 6 7.6 1.3%
Station 2 :2 meter 5Jul-94 28 0.1 7.5 7.3 1.4%
Station 2 :3 meter 28 0.1 7.5 7.3 1.4%
Station 2 : 1 meter 1:00 PM 28 0.1 6 7.5 1.3%
Station 2 :2 meter 7Jul-94 29 0.1 7 7.2 1.4%
Station 2 :3 meter 29 0.1 7 7.2 1.4%
Station 3 : 1 meter 12:30 PM 29 1.7 7 7.2 23.6%
Station 4 : 1 meter 2:30 AM 31 3.2 10 6.6 48.5%
Station 2 : 1 meter 10:30 AM 28 0.2 7 7.3 2.7%
Station 2 :2 meter 11Jul-94 29 0.1 9 7.0 1.4%
Station 2 :3 meter 29 0.1 9 7.0 1.4%
Station 2 : 1 meter 11:00 AM 27 0.4 8 7.3 5.4%
Station 2 :2 meter 12Jul-94 29 0.2 11 6.7 3.0%
Station 2 :3 meter 29 0.1 12 6.6 1.5%
Station 2 : 1 meter 10:15 AM 28 0.1 11 6.8 1.5%
Station 2 :2 meter 14Jul-94 29 0.1 13 6.5 1.5%
Station 2 : 1 meter 10:45 AM 29 0.1 13 6.5 1.5%
Station 2 :2 meter 18Jul-94 30 0.1 16 6.0 1.7%
Station 2 :3 meter 31 0.1 17 5.8 1.7%
Station 2 : 1 meter 10:30 AM 29 0.1 14 6.4 1.6%
Station 2 :2 meter 19Jul-94 30 0.1 16 6.0 1.7%
Station 2 :3 meter 29 0.1 16 6.1 1.6%
Station 2 : 1 meter 12:30 PM 30 0.1 15 6.1 1.6%
Station 2 :2 meter 21 Jul-94 30 0.1 16.5 6.0 1.7%
Station 2 :3 meter 31 0.1 17 5.8 1.7%
Station 3 : 1 meter 12:45 PM 31 7.8 13 6.3 124.6%
Station 4 : 1 meter 1:00 AM 31 7.1 16 5.9 119.6%
Station 2 : 1 meter 10:15 AM 29 0.1 11 6.7 1.5%
Station 2 :2 meter 25Jul-94 29 0.1 14 6.4 1.6%
Station 2 :3 meter 30 0.1 15 6.1 1.6%

Havelock NCO021253
• Time
Location Date Temperature DO Salinity 100%[b APHA w/Salinity Saturation
(Ceklus) myl Ppt myl % [APHA&Salinity j
Station 2 : 1 meter 10:00 AM 29 0.3 14 6.4 4.7%
Station 2 :2 meter 26Jul-94 29 0.1 15 6.3 1.6%
Station 2 :3 meter 29 0.1 15 6.3 1.6%
Station 2 : 1 meter 1:00 PM 29 0.2 14 6.4 3.1 %
Station 2 :2 meter 28Jul-94 28 0.1 15 6.4 1.6%
Station 2 :3 meter 29 0.1 14 6.4 1.6%
Station 2 : 1 meter 9:45 AM 28 0.1 14 6.5 1.5%
Station 2 :2 meter 1-Aug-94 28 0.1 16 6.3 1.6%
Station 2 :3 meter 28 0.1 16 6.3 1.6%
Station 2 : 1 meter 1:00 PM 29 0.1 17 6.0 1.7%
Station 2 :2 meter 3-Aug-94 29 0.1 16 6.1 1.6%
Station 2 :3 meter 29 0.1 17 6.0 1.7%
Station 2 : 1 meter 1:00 PM 29 0.1 15 6.3 1.6%
Station 2 :2 meter 4-Aug-94 29 0.1 16 6.1 1.6%
Station 2 :3 meter 29 0.1 17 6.0 1.7%
Station 3 : 1 meter 1:30 PM 29 0.1 15 6.3 1.6%
Station 4: 1 meter 30 5.9 17 5.9 99.4%
Station 2 : 1 meter 1:15 PM 27 2.0 13 6.7 29.8%
Station 2 :2 meter 8-Aug-94 28 0.2 16 6.3 3.2%
Station 2 :3 meter 28 0.1 16 6.3 1.6%
Station 2 : i meter 11:30 PM 27 2.3 13 6.7 34.2%
Station 2 :2 meter 9-Aug-94 28 0.2 16 6.3 3.2%
Station 2 :3 meter 28 0.1 16 6.3 1.6%
Station 2 : 1 meter 10:30 PM 28 2.7 13 6.6 40.9%
Station 2 :2 meter 11-Aug-94 28 0.2 16 6.3 3.2%
Station 2 :3 meter 28 0.1 16 6.3 1.6%
Station 2 : 1 meter 11:00 AM 30 0.1 13 6.4 1.6%
Station 2 :2 meter 15-Aug-94 28 0.1 15 6.4 1.6%
Station 2 :3 meter 28 0.1 15 6.4 1.6%
Station 2 : 1 meter 10:00 AM 29 0.2 13 6.5 3.1 %
Station 2 :2 meter 16-Aug-94 28 0.1 15 6.4 1.6%
Station 2 :3 meter 28 0.1 15 6.4 1.6%
Station 2 : 1 meter 2:30 PM 24 5.3 1 8.8 60.3%
Station 2 :2 meter 19-Aug-94 28 0.2 12 6.7 3.0%
Station 2 :3 meter 28 0.1 10 7.0 1.4%

Time
Location Date Temperature DO Salinity 100%DO APHA wl Salinity Saturaton
(Celdus) rn911 Ppt MgA % [APHA&Sallnity]
Station 2 : 1 meter 1:00 PM 28 0.6 10 7.0 8.6%
Station 2 :2 meter 22-Aug-94 28 0.2 13 6.6 3.0%
Station 2 :3 meter 27 0.1 14 6.6 1.5%
Station 2 : 1 meter 1:00 PM 29 3.2 10 6.8 46.8%
Station 2 :2 meter 23-Aug-94 28 0.1 14 6.5 1.5%
Station 2 :3 meter 28 0.1 14 6.5 1.5%
Station 3 : 1 meter 1:30 PM 28 13.0 9 7.1 183.5%
Station 4 : 1 meter 2:00 PM 28 9.8 13 6.6 148.5%
Station 2 : 1 meter 11:30 AM 27 3.4 10 7.1 48.0%
Station 2 :2 meter 25-Aug-94 28 0.1 14 6.5 1.5%
Station 2 :3 meter 27 0.1 14 6.6 1.5%
Station 2 : 1 meter 1:00 PM 28 0.4 12 6.7 6.0%
Station 2 :2 meter 29-Aug-94 28 0.2 13 6.6 3.0%
Station 2 :3 meter 28 0.1 13 6.6 1.5%
Station 2 : 1 meter 2:00 PM 28 1.0 11 6.8 14.6%
Station 2 :2 meter 30-Aug-94 29 0.2 13 6.5 3.1 %
Station 2 :3 meter 28 0.1 13 6.6 1.5%
Station 2 : 1 meter 10:00 AM 27 0.2 13 6.7 3.0%
Station 2 :2 meter 1-Sep-94 28 0.1 13 6.6 1.5%
Station 2 :3 meter 27 0.1 13 6.7 1.5%
Station 2 : 1 meter 11:30 AM 25 0.2 12 7.1 2.8%
Station 2 :2 meter 8-Sep-94 24 0.1 12 7.2 1.4%
Station 2 :3 meter 25 0.1 13 7.0 1.4%
Station 2 : 1 meter 2:00 PM 25 0.3 12 7.1 4.2%
Station 2 :2 meter 9-Sep-94 25 0.1 13 7.0 1.4%
Station 2 :3 meter 25 0.1 13 7.0 1.4%
Station 2 : 1 meter 11:30 AM 25 0.2 10 7.4 2.7%
Station 2 :2 meter 12-Sep-94 25 0.1 13 7.0 1.4%
Station 2 :3 meter 25 0.1 13 7.0 1.4%
Station 2 : 1 meter 11:30 AM 26 0.7 11 7.1 9.9%
Station 2 :2 meter 13-Sep-94 25 0.3 13 7.0 4.3%
Station 2 :3 meter 25 0.2 13 7.0 2.9%
Station 2 : 1 meter 1:30 PM 26 0.1 12 7.0 1.4%
Station 2 :2 meter 14-Sep-94 25 0.1 13 7.0 1.4%
Station 2 :3 meter 25 0.1 13 7.0 1.4%
Station 3 : 1 meter 2:00 PM 27 8.9 12 6.8 130.1 %
Station 4 : 1 meter 27 9.7 14 6.6 146.9%

Time
Location Date Temperature DO Salinity 100%DO:APHA w/Salinity Saturation
(celdus) M90 Ppt myl % (APHA&Salinity]
Station 2 : 1 meter 2:00 PM 24 2.1 9 7.6 27.5%
Station 2 :2 meter 20-Sep-94 25 0.1 13 7.0 1.4%
Station 2 :3 meter 25 0.1 13 7.0 1.4%
Station 2 : 1 meter 11:00 AM 23 1.7 7 8.1 21.1 %
Station 2 :2 meter 21-Sep-94 24 0.1 13 7.1 1.4%
Station 2 :3 meter 25 0.1 14 6.9 1.5%
Station 2 : 1 meter 11:45 AM 21 5.3 1 9.3 56.9%
Station 2 :2 meter 22-Sep-94 25 0.1 12 7.1 1.4%
Station 2 :3 meter 25 0.1 14 6.9 1.5%
Station 2 : 1 meter 1:30 PM 24 0.2 13 7.1 2.8%
Station 2 :2 meter 26-Sep-94 24 0.1 14 7.0 1.4%
Station 2 :3 meter 24 0.1 14 7.0 1.4%
Station 2 : 1 meter 1:30 PM 25 0.2 15 6.7 3.0%
Station 2 :2 meter 27-Sep-94 24 0.1 14 7.0 1.4%
Station 2 :3 meter 24 0.1 13 7.1 1.4%
Station 3 : 1 meter 2:00 PM 24 0.1 15 6.9 1.5%
Station 4 : 1 meter 2:00 PM 25 3.2 17 6.5 49.2%
Station 2 : 1 meter 10:30 AM 24 0.2 14 7.0 2.9%
Station 2 :2 meter 29-Sep-94 24 0.1 15 6.9 1.5%
Station 2 :3 meter 24 0.1 15 6.9 1.5%
Station 2 : 1 meter 2:00 PM 23 3.3 13 7.2 45.6%
Station 2 :2 meter 3-Oct-94 23 0.7 14 7.1 9.8%
Station 2 :3 meter 24 0.1 15 6.9 1.5%
Station 2 : 1 meter 10:45 AM 23 0.3 13 7.2 4.1 %
Station 2 :2 meter 4-Oct-94 24 0.1 14 7.0 1.4%
Station 2 :3 meter 24 0.1 15 6.9 1.5%
Station 2 : 1 meter 11:30 AM 22 0.6 13 7.4 8.1 %
Station 2 :2 meter 6-Oct-94 22 0.1 14 7.3 1.4%
Station 2 :3 meter 23 0.1 15 7.0 1.4%
Station 2 : 1 meter 10:30 AM 23 5.3 12 7.4 71.9%
Station 2 :2 meter 11-Oct-94 22 0.2 14 7.3 2.8%
Station 2 :3 meter 22 0.1 15 7.1 1.4%
Station 2 : 1 meter 1:00 PM 21 0.6 13 7.5 8.0%
Station 2 :2 meter 12-Oct-94 21 0.1 14 7.4 1.4%
Station 2 :3 meter 21 0.1 14 7.4 1.4%
Station 2 : 1 meter 8:30 AM 21 0.1 13 7.5 1.3%
Station 2 :2 meter 13-Oct-94 22 0.1 14 7.3 1.4%
Station 2 :3 meter 21 0.1 14 7.4 1.4%

Time
Location Date Temperature DO Salinity t00%DO APHA wi Salinity Saturation
(Celdus) 1119/1 ppt myl % (APHA&Salinity]
Station 2 : 1 meter 1:00 PM 19 0.3 6 8.9 3.4%
Station 2 :2 meter 17-Oct-94 19 2.1 10 8.3 25.4%
Station 2 :3 meter 22 0.1 13 7.4 1.4%
Station 2 : 1 meter 11:00 AM 20 0.2 6 8.7 2.3%
Station 2 :2 meter 18-Oct-94 19 2.0 9 8.4 23.8%
Station 2 :3 meter 21 0.1 10 7.9 1.3%
Station 2 : 1 meter 11:00 AM 20 0.3 10 8.1 3.7%
Station 2 :2 meter 19-Oct-94 20 0.1 12 7.8 1.3%
Station 2 :3 meter 21 0.1 13 7.5 1.3%
Station 2 : 1 meter 11:30 AM 21 0.1 14 7.4 1.4%
Station 2 :2 meter 24-Oct-94 20 0.1 14 7.6 1.3%
Station 2 :3 meter .19 0.1 14 7.7 1.3%
Station 2 : 1 meter 11:30 AM 21 0.1 13 7.5 1.3%
Station 2 :2 meter 25-Oct-94 20 0.1 14 7.6 1.3%
Station 2 :3 meter 20 0.1 14 7.6 1.3%
Station 2 : 1 meter 1:45 PM 20 5.2 9 8.2 63.0%
Station 2 :2 meter 27-Oct-94 20 0.3 14 7.6 4.0%
Station 2 :3 meter 19 0.1 14 7.7 1.3%
Station 2 : 1 meter 1:45 PM 19 0.7 10 8.3 8.5%
Station 2 :2 meter 31-Oct-94 20 0.1 14 7.6 1.3%
Station 2 :3 meter 20 0.1 14 7.6 1.3%
Station 2 : 1 meter 11:00 AM 18 7.8 10 8.4 92.4%
Station 2 :2 meter 3-Nov-94 20 0.3 13 7.7 3.9%
Station 2 :3 meter 20 0.1 13 7.7 1.3%
Station 2 : 1 meter 11:30 AM 19 0.3 12 8.0 3.8%
Station 2 :2 meter 8-Nov-94 20 0.1 14 7.6 1.3%
Station 2 :3 meter 19 0.1 14 7.7 1.3%
Station 2 : 1 meter 1:15 PM 18 2.6 11 8.3 31.3%
Station 2 :2 meter 14-Nov-94 18 0.1 12 8.1 1.2%
Station 2 :3 meter 19 0.1 13 7.8 1.3%
Station 2 : 1 meter 10:30 AM 19 0.6 10 8.3 7.3%
Station 2 :2 meter 22-Nov-94 18 0.1 12 8.1 1.2%
Station 2 :3 meter 19 0.1 13 7.8 1.3%
Station 2 : 1 meter 12:00 PM 16 3.0 3 10.0 30.1 %
Station 2 :2 meter 30-Nov-94 18 0.2 11 8.3 2.4%
Station 2 :3 meter 17 0.1 11 8.5 1.2%

Havelock NCO021253
Time
Location Date Temperature DO Salinity 100%DO APHA w/Salinity Saturation
(Caidus) "19A PPt M911 % [APHA&Sanniry 1
Station 2 : 1 meter 1:30 PM 18 0.8 10 8.4 9.5%
Station 2 :2 meter 6-Dec-94 17 0.2 11 8.5 2.4%
Station 2 :3 meter 16 0.1 11 8.7 1.2%
Station 2 : 1 meter 1:15 PM 15 0.7 5 9.8 7.1 %
Station 2 :2 meter 14-Dec-94 16 0.1 8 9.1 1.1 %
Station 2 :3 meter 17 0.1 10 8.6 1.2%
Station 2 : 1 meter 1:15 PM 13 9.3 6 10.1 92.1 %
Station 2 :2 meter 20-Dec-94 14 1.8 10 9.2 19.6%
Station 2 :3 meter 17 0.4 12 8.3 4.8%
Station 2 : 1 meter 10:15 AM 12 7.0 0 11.5 60.9%
Station 2 :2 meter 28-Dec-94 11 7.0 0 11.8 59.5%
Station 2 :3 meter 16 0.1 12 8.5 1.2%
Station 2 : 1 meter 1:30 PM 8 8.0 0 12.6 63.3%
Station 2 :2 meter 5Jan-95 13 0.8 8 9.7 8.2%
Station 2 :3 meter 14 0.3 9 9.4 3.2%
Station 2 : 1 meter 1:30 PM 9 8.2 0 12.3 66.5%
Station 2 :2 meter 10Jan-95 9 8.2 0 12.3 66.5%
Station 2 :3 meter 10 2.7 3 11.4 23.6%
Station 2 : 1 meter 2:00 PM 12 6.6 0 11.5 57.4%
Station 2 :2 meter 18Jan-95 12 6.6 0 11.5 57.4%
Station 2 :3 meter 12 6.5 0 11.5 56.6%
Station 2 : 1 meter 10:45 AM 7 9.0 0 13.0 69.4%
Station 2 :2 meter 26Jan-95 7 8.9 0 13.0 68.7%
Station 2 :3 meter 6 8.9 0 13.3 66.9%
Station 2 : 1 meter 12:45 PM 10 8.0 0 12.0 66.4%
Station 2 :2 meter 1-Feb-95 9 7.2 0 12.3 58.4%
Station 2 :3 meter 9 2.5 3.5 11.6 21.6%
Station 2 : 1 meter 1:30 PM 6 9.7 0 13.3 72.9%
Station 2 :2 meter 8-Feb-95 9 1.6 3 11.7 13.7%
Station 2 :3 meter 10 1.4 3 11.4 12.3%
Station 2 : 1 meter 3:00 PM 14 8.2 0 11.0 74.7%
Station 2 :2 meter 16-Feb-95 13 8.1 0 11.2 72.1 %
Station 2 :3 meter 13 8.1 0 11.2 72.1 %
Station 2 : 1 meter 10:15 AM 12 8.4 0 11.5 73.1 %
Station 2 :2 meter 22-Feb-95 12 8.3 0 11.5 72.2%
Station 2 :3 meter 12 8.2 0 11.5 71.4%

Time
Location Date Temperature DO Salinity 100%DO APHA w/Salinity Saturation
(Owdw) myl PPt mgA % [APHA a Sailniq i
Station 2 : 1 meter 11:00 AM 12 8.5 0 11.5 74.0%
Station 2 :2 meter 27-Feb-95 11 8.2 0 11.8 69.7%
Station 2 :3 meter 10 7.8 0 12.0 64.8%
Station 2 : 1 meter 1:00 PM 14 7.4 0 11.0 67.4%
Station 2 :2 meter 7-Mar-95 12 0.3 4.5 10.6 2.8%
Station 2 :3 meter 12 0.6 6 10.3 5.8%
Station 2 : 1 meter 11:15 AM 14 7.9 0 11.0 71.9%
Station 2 :2 meter 14-Mar-95 12 2.7 2.5 11.0 24.6%
Station 2 :3 meter 12 0.4 5 10.5 3.8%
Station 2 : 1 meter 12:15 PM 16 6.4 0 10.5 60.9%
Station 2 :2 meter 20-Mar-95 14 4.5 0 11.0 41.0%
Station 2 :3 meter 13 0.4 5 10.3 3.9%
Station 2 : 1 meter 11:45 AM 16 7.5 0 10.5 71.4%
Station 2 :2 meter 27-Mar-95 15 5.1 0.5 10.6 47.9%
Station 2 :3 meter 13 0.3 5 10.3 2.9%
Station 2 : 1 meter 12:00 PM 16 7.9 0 10.5 75.2%
Station 2 :2 meter 3-Apr-95 15 6.6 0 10.7 61.4%
Station 2 :3 meter 14 0.2 4.5 10.1 2.0%
Station 2 : 1 meter 10:30 AM 16 7.8 0 10.5 74.2%
Station 2 :2 meter 4-Apr-95 15 1.3 3 10.2 12.8%
Station 2 :3 meter 14 0.2 4 10.2 2.0%
Station 2 : 1 meter 11:15 AM 17 7.8 0 10.3 75.8%
Station 2 :2 meter 5-Apr-95 16 6.9 1 10.3 66.8%
Station 2 :3 meter 14 0.4 4 10.2 3.9%
Station 2 : 1 meter 10:00 AM 19 6.7 0 9.9 67.9%
Station 2 :2 meter 11-Apr-95 18 4.3 0 10.1 42.7%
Station 2 :3 meter 14 0.4 3.5 10.3 3.9%
Station 2 : 1 meter 11:00 AM 20 5.6 0 9.7 57.9%
Station 2 :2 meter 12-Apr-95 16 1.2 0.5 10.4 11.5%
Station 2 :3 meter 15 0.4 3.5 10.1 4.0%
Station 2 : 1 meter 11:45 AM 20 5.6 0 9.7 57.9%
Station 2 :2 meter 13-Apr-95 16 0.3 2.5 10.1 3.0%
Station 2 :3 meter 14 0.2 3.5 10.3 1.9%
Station 2 : 1 meter 11:00 AM 20 5.1 0 9.7 52.7%
Station 2 :2 meter 17-Apr-95 19 4.6 1 9.7 47.4%
Station 2 :3 meter 15 0.2 4 10.0 2.0%

Havelock NCO021253
Time
Location Date Temperature DO Salinity 100%DO:APHA w/Salinity Saturation
(Celdus) mgA PPt M94 % I APHA 8 Sallnity]
Station 2 : 1 meter 1:15 PM 20 7.0 0 9.7 72.4%
Station 2 :2 meter 18-Apr-95 18 2.9 1 9.9 29.3%
Station 2 :3 meter 15 0.3 3.5 10.1 3.0%
Station 2 : 1 meter 2:00 PM 23 9.2 0.5 9.0 101.8%
Station 2 :2 meter 20-Apr-95 20 3.6 1.5 9.4 38.2%
Station 2 :3 meter 15 0.3 3 10.2 2.9%
Station 2 : 1 meter 11:00 AM 20 5.2 0 9.7 53.8%
Station 2 :2 meter 25-Apr-95 20 4.9 1 9.5 51.6%
Station 2 :3 meter 15 0.4 3 10.2 3.9%
Station 2 : 1 meter 11:30 AM 19 5.0 0.5 9.8 51.1 %
Station 2 :2 meter 26-Apr-95 20 5.3 1.5 9.4 56.3%
Station 2 :3 meter 16 0.3 3 10.0 3.0%
Station 2 : 1 meter 11:15 AM 20 4.5 1.5 9.4 47.8%
Station 2 :2 meter 27-Apr-95 20 4.1 2 9.3 43.9%
Station 2 :3 meter 16 0.4 3 10.0 4.0%
Station 2 : 1 meter 1:00 PM 21 6.8 1 9.3 73.0%
Station 2 :2 meter 1-May-95 20 0.5 2 9.3 5.4%
Station 2 :3 meter 17 6.2 3 9.8 2.0%
Station 2 : 1 meter 1:00 PM 21 9.5 1 9.3 102.0%
Station 2 :2 meter 3-May-95 20 1.6 2 9.3 17.1 %
Station 2 :3 meter 17 0.1 3 9.8 1.0%
Station 2 : 1 meter 11:15 AM 21 5.6 2 9.1 61.2%
Station 2 :2 meter 5-May-95 21 3.9 3 9.0 43.4%
Station 2 :3 meter 17 0.4 3 9.8 4.1 %
Station 2 : 1 meter 12:00 PM 22 7.7 1 9.1 84.3%
Station 2 :2 meter 8-May-95 22 2.6 2 9.0 29.0%
Station 2 :3 meter 17 0.3 3 9.8 3.1 %
Station 2 : 1 meter 1:00 PM 22 9.0 1.5 9.1 99.4%
Station 2 :2 meter 9-May-95 22 2.5 2.5 8.9 28.1 %
Station 2 :3 meter 18 0.8 3 9.6 8.4%
Station 2 : 1 meter 2:00 PM 22 3.8 2 9.0 42.4%
Station 2 :2 meter 11-May-95 21 0.7 2 9.1 7.7%
Station 2 :3 meter 19 0.2 3 9.4 2.1 %
Station 2 : 1 meter 12:15 PM 23 0.7 2 8.8 8.0%
Station 2 :2 meter 16-May-95 24 0.3 3.5 8.4 3.6%
Station 2 :3 meter 21 0.1 4 8.8 1.1 %

Havelock NCO021253
Time
Location Date Temperature DO Salinity 100%DO APHA wi Salinity Saturation
(Caldus) nq/l ppt mgA % I APHA 8 Salinity)
Station 2 : 1 meter 10:30 AM 23 1.8 2 8.8 20.5%
Station 2 :2 meter 17-May-95 24 0.1 3.5 8.4 1.2%
Station 2 :3 meter 21 0.1 4 8.8 1.1 %
Station 2 : 1 meter 11:00 AM 24 0.3 2 8.6 3.5%
Station 2 :2 meter 18-May-95 23 0.1 3 8.6 1.2%
Station 2 :3 meter 21 0.1 3.5 8.9 1.1 %
Station 2 : 1 meter 12:45 PM 25 2.9 3 8.3 . 34.8%
Station 2 :2 meter 22-May-95 25 0.9 4 8.2 11.0%
Station 2 :3 meter 24 0.1 4 8.3 1.2%
Station 2 : 1 meter 1:00 PM 25 8.2 3 8.3 98.5%
Station 2 :2 meter 23-May-95 25 0.3 4 8.2 3.7%
Station 2 :3 meter 24 0.1 4 8.3 1.2%
Station 2 : 1 meter 1:00 PM 24 8.3 3 8.5 97.9%
Station 2 :2 meter 24-May-95 24 0.2 4 8.3 2.4%
Station 2 :3 meter 23 0.1 4 8.5 1.2%
Station 2 : 1 meter 12:30 PM 26 7.2 4 8.0 89.7%
Station 2 :2 meter 30-May-95 25 0.4 5 8.0 5.0%
Station 2 :3 meter 23 0.1 5 8.3 1.2%
Station 2 : 1 meter 1:00 PM 26 9.2 3.5 8.1 113.6%
Station 2 :2 meter 31-May-95 25 0.2 4.5 8.1 2.5%
Station 2 :3 meter 24 0.1 4.5 8.3 1.2%
Station 2 : 1 meter 1:00 PM 26 0.4 3.5 8.1 4.9%
Station 2 :2 meter 5Jun-95 25 0.1 5 8.0 1.2%
Station 2 :3 meter 24 0.1 5 8.2 1.2%
Station 2 : 1 meter 11:45 AM 24 4.6 0 8.9 51.4%
Station 2 :2 meter 7Jun-95 25 0.4 3 8.3 4.8%
Station 2 :3 meter 25 0.1 4 8.2 1.2%
Station 2 : 1 meter 9:30 AM 23 2.5 1 9.0 27.9%
Station 2 :2 meter 8Jun-95 24 0.2 3 8.5 2.4%
Station 2 :3 meter 23 0.1 3 8.6 1.2%
Station 3 : 1 meter 10:00 AM 25 5.4 2 8.5 63.7%
Station 4 : 1 meter 25 8.3 5 8.0 103.3%
Station 2 : 1 meter 10:30 AM 25 1.0 1 8.6 11.6%
Station 2 :2 meter 12Jun-95 24 0.2 2 8.6 2.3%
Station 2 :3 meter 24 0.2 3 8.5 2.4%

Havelock NCO021253
Time
Location Date Temperature DO Salinity 100%DO APHA w/Salinity Saturation
(Celdus) mpA pot mgA % [APHA 8 Salinity]
Station 2 : 1 meter 10:30 AM 22 4.0 1 9.1 43.8%
Station 2 :2 meter 14Jun-95 23 0.8 1 9.0 8.9%
Station 2 :3 meter 23 0.4 2 8.8 4.5%
Station 2 : 1 meter 12:45 PM 22 4.3 0 9.3 46.3%
Station 2 :2 meter 15Jun-95 21 2.3 0 9.5 24.3%
Station 2 :3 meter 23 0.2 2 8.8 2.3%
Station 2 : 1 meter 12:30 PM 23 5.1 0 9.1 56.0%
Station 2 :2 meter 19Jun-95 22 3.0 0 9.3 32.3%
Station 2 :3 meter 22 0.2 1 9.1 2.2%
Station 2 : 1 meter 9:30 AM 23 2.7 0 9.1 29.6%
Station 2 :2 meter 21 Jun-95 23 1.0 1 9.0 11.2%
Station 2 :3 meter 22 0.1 1 9.1 1.1 %
Station 3 : 1 meter 9:30 AM 25 8.4 1 8.6 97.4%
Station 4 : 1 meter 25 7.2 3 8.3 86.5%
Station 2 : 1 meter 10:30 AM 24 2.2 0 8.9 24.6%
Station 2 :2 meter 23Jun-95 24 0.4 1 8.8 4.6%
Station 2 :3 meter 22 0.2 1 9.1 2.2%
Station 2 : 1 meter 11:30 AM 24 2.7 0 8.9 30.2%
Station 2 :2 meter 26Jun-95 23 0.4 1 9.0 4.5%
Station 2 :3 meter 22 0.3 1 9.1 3.3%
Station 2 : 1 meter 10:45 AM 24 3.1 0 8.9 34.7%
Station 2 :2 meter 27Jun-95 24 0.1 0.5 8.9 1.1 %
Station 2 :3 meter 22 0.1 1 9.1 1.1 %
Station 2 : 1 meter 10:15 AM 25 3.0 0 8.8 34.2%
Station 2 :2 meter 28Jun-95 23 0.3 0.5 9.0 3.3%
Station 2 :3 meter 22 0.1 1 9.1 1.1 %
APHA(1985)formula with actual salinity values used
Genet et al.,(1974) Pearl Harbor Version of Dynamic Estuary Model(DEM)
Cs=14.5532-0.38217 T+0.0054258 T -CL(1.665' 10 -5.866'10 T+9.796 10 T )
"'Raytheon Co.(1974)and Weiss(1970) RECEIV-II
CS-1.4277 EXP[-173.492+24963.39/T+143.3483 In(T/100)-0.218492 T+S(-0.033096+0.00014259 T-0.00000017 T )]
APHA(1985)formula[EXPI In Cs--139.34411 +(1.575701 ' 10 M-(6.642308' 10 /T )+(1.243800' 10 /r )
-(8.621949. 10 /T )-Chl[(3.1929. 10 )-(1.9428' 10/T)+(3.8673' 10 /T )I
Cs-equilibrium oxygen concentration,mgA,at 1.000 atm(standard pressure)
T-temperature(Kelvin)-Celcius+273.150(and Celcius within 0.0 to 40.0 degrees)
Chi-chlorinity within 0.0 to 28.0,ppt - when salinity data used replace chlorinity term with:
S[(1.7674.10 )-(1.0754' 10/1)+(2.1407'10 /T )]

RVEN AND SAWYER Hazen and Sawyer,P.
C.
4011 WestChase Blvd.
Environmental Engineers & Scientists Raleigh,NC 27607
919 833-7152
Fax:[phone] }
July 11 , 1995N
r >m
Ms. Ruth Swanek "; y,u;l EP,AFdCi
Water Quality Section l
N.C. Division of Environmental Management
P.O. Box 29535 ,
Raleigh, NC 27626-0535
Re: City of Havelock WWTP
NPDES Permit Limits
H&S No. 3006
Dear Ms. Swanek:
The City of Havelock is currently evaluating expansion of its existing
wastewater treatment plant from its current permitted capacity of 1 .5 mgd and
relocation of its discharge location to the Neuse River. The discharge limits for
the current capacity and discharge location are contained in the NPDES permit for
the facility (Permit No. NC0021253). In order to evaluate facilities required for
the proposed expansion, we are hereby requesting NPDES permit limits for
expanded flows of 2.0, 2.5 and 3.15 mgd. Two alternative discharge locations
are being considered, as shown on the attached photocopy of the Havelock
USGS quad map.
Please let us know if any additional information is required. We will look
forward to your reply.
� aa4� Very truly yours,
DD
7 o HAZEN AND SAWYER, P.C.
Robert A. Berndt, P.E.
Associate
RAB/wp
cc: Mr. Joe Huffman
Ms. Susan Rexrode
Mr. Bob Collins
New YD6,NY• Armonk,NY • Upper Saddle River,NJ •Raleigh,NC•Cluilotte,NC •Richmond VA•Hollywood!.FL•Bow Raton,FL•Fort Pierce,FL•Jupiter,FL•Miami,FL•Bogota.D.E.Colombia

Page 12
Note for Don Safrit
From: Don Safrit
Date: Sun, Feb 26, 1995 8:48 PM
Subject: RE: HAVELOCK
To: Coleen Sullins
Steve and I discussed this briefly on Friday and I think we're going to have to sit down and
discuss the potential options. This is one where Steve wants to see a committment on their
part (EA/201 Mod/Perit App) before he agrees to anything. I have a memo from Clark that I
wanted to review before we proposed anything. If you're around Monday, come by and get a
copy.
Thanks, Don
From: Coleen Sullins on Feb 25, 1995 - Sat 1:45 PM
Subject: FW: HAVELOCK
To: Don Safrit
Since I have been out of the office so much lately and will be gone again the first part of the
week (meeting in MRO w/Paw Creek folks, meeting in ARO - hearings on French Broad), if
there is something that you need me to review, how about leaving me a message and I will
take the computer and dial in. Thanks Coleen
From: Steve Tedder on Tue, Feb 21, 1995 7:48 AM
Subject: HAVELOCK
To: Don Safrit
Cc: Coleen Sullins
WE NEED TOPLAY OUT SOME SITUATIONS FOR THIS ONE (ON PAPER)
LETS ASSUME HAVELOCK DECIDES TO GO FOR 8.0 MGD DISCHARGE TO THE
NEUSE. FOR US TO PROCEED WE WILL NEED WHAT? EA AND APPLICATION.
THEN WHAT CAN WE DO WITH THE STAGED PERMIT TO ALLOW THEM TO PUT
MOST OF THE MONEY IN THE NEW REGIONAL PLANT AND NOT SPENT A
BUNCH ON THE EXISTING FACILITY NO MATTER WHER THE NEW FACILITY IS
BUILT. NATURALLY, IF THEY CAN GET LAND FROM THE BASE IT WOULD
MAKE A LOT MORE SENSE, WAS THE BASES OUTFALL LINE SIZED IN SUCH A
MANNER THAT THEY MIGHT BE ABLE TO TIE INTO IT AND AVOID HAVING TO
BUILD A SECOND OUTFALL DIFFUSER?
COULD WE NOT LET THEM SPEND SOME$TO HANDLE UP TO 2.0 WITH THE
CURRENT PLANT, NOT THE RESTRICTIVE LIMITS AND USE THE EA THEY
PRODUCE FOR THE 1.9 EXPANSION? HOW OR CAN WE GET THEM TO 2.25 AT
THE CURRENT LOCATION AND LIMITS WITHOUT ANOTHER EA FOR THE
DISCHARGE TO SLOCUM? OR IS IT BEST FOR THEM TO STAY AT THE 1.9 AND
THEN AT SOME TIME WHEN THIS IS COMPLETE THEN RE-RATE TO 2.25?IF WE
NEED TO MEET AND ROUNDTABLE LET ME KNOW. THANKS THIS ONE NEED
TO MOVE ASAP. THANSK

FFS-22-95 WED 9:20 P. 01
WP.FID J4.ND I,w��( �(/„' //1.1�
WIRTMCOXXXItit CCVF:R
DATE: 02/22/95
The information contained in this facsimile in is attorney privileged and
confidential information intended only for the use of the individual of entity named
below. If the reader of this message is not the intended recipient, you are hereby
notified that any dissemination, distribution or copying of this communication is
wrongful and may subject you to civil liability_ If you have received this communication
in error, please immediately notify us by telephone, and return the original message to
us at the below address via U.S. Postal Service. Thank you.
TO% Mr. Steve W. Tedder
ADDRESSEE FIRMI Department of Environment, Health, and Nature
ADDRESSEE CITY AND STATE: Raleigh, NC
ADDRUSSE PHONEI [phone]
ADDRESSEE TELHCOPIER PHONE: [phone]
TOTAL PAGES TRANSMITHD: 3 INCLUDING COVER MEMC..RANDUM
CLISNr FILE NUMBERI 720017(DI)
81ROM: I. Clark Wright, Jr.
120 West Fire Tower Road X lool college Court
- Post Office Box BOBS poet Office 'BOx 867
Greenville, NC 27835-8088 New Bern, NC 26563-0867
00
Fax. : (929) )756-36890 Fax. : (919) )636-2121
Suite 2400 Fourth Floor
- Two Hannover Square 202 North Third Street.
Fayetteville Street Mall Wilmington, NC 28401-4002
Poet Office Box 2091 Tel. : (916) 762-5200
Raleigh, NC 17602-2091 Fax. : (910) 762-0503
Tel. : 919) $36-1800
Fax. : �919) 856-1507
IF YOU DO NOT RECEIVE ALL OF THE PAGES, PLEASE CALL AS
SOON AS POSSIBLE AND ASK FOR THE "TELECOPIER OPERATOR. "
TELECOPIER OPERATOR:4_LL ' ^
:-'�'v�y TIME.
TRANSMISSION CONFIRMED: w_ TRANSMISS'ION NOT c014FIRMED; TIME:
COMMENTS: Steve, attached ie the city's diecuee.ion draft seeking guidance from 'DEM on
implementation of the planning and permitting process for a Regional POTW. The
City is very interested in the Regional concept, but very concerned over the
details of how to manage its existing POTW and the related regulatory process
pending the planning, permitting and construction of a new Regional facility.
Any guidance you can provide on thous critical interim iseuee greatly would be
appreciated.
Beet personal re r _
Clark Wright,-
�

;FE$' 22-95 WED 9:20 P. 02 .
4
WARD AND SMITH, P .A. OFFICE MEMORANDUM
Attorneys at Law
TO: Steve Tedder DATE: February 22, 1995
FROM: Clark Wright CLIENT: City of Havelock
COPY TO: Joe Huffman, Bob MATTER: Sewer-1995
Willet, JTS, File'
FILE N0: 720017 (DI ) SUBJECT: Discussion Draft re
Proposed City of
Havelock Regional POTW
and Related Utilization
of Existing POTW
This memo outlines , for discussion purposes , a proposal by the City of
Havelock to consider construction/operation of a Regional POTW facility
serving the City and other areas of Craven County east of the Trent
River. As discussed in our morning teleconference, an issue of critical
importance to the City is the ability, from engineering and regulatory
perspectives , to manage City sewage treatment needs during the 5+ year
interim period needed to plan, site, permit and:,construct a regional
POTW. During this interim period, the City must have the ability to
utilize its existing POTW in a cost effective manner,
For purposes of initiating specific dialogue with DEM, the City presents
the following draft proposal :
I ♦ Commit to the planning, siting, construction, permitting and
/J m pyv operation of a Regional POTW (approximately 10 MGD) designed
0 diSt4jatV, to handle the sewage treatment needs of the City and any
interested Craven County communities located east of the Trent
i I River . The facility likely would be constructed in phases,
but should be permitted for full design flow to effectuate
fully the regional facility concept. eased on available
information, it is anticipated that the Regional POTW will
discharge from a single, diffused outfall located on the Neuse
River. The City' s goal would be to coordinate and cooperate
with DEM, County, and local community officials, and
interested citizens to accomplish the funding, construction
and operation of the Regional. POTW in as expeditious a manner
as possible. To maximize any potential 1995 Legislative
funding, the City requests that DEM use its best efforts to
respond to this initial discussion document as quickly as
possible.
�A,�.� �yV ��� ♦ The City believes that a realistic time frame for completion
f� " S fiend of the Regional POTW is 4-8 years , during which the City must
have the ability to continue to utilize its existing Slocum
Creek POTW facility/outfall . The City.proposes to upgrade the
Slocum Creek POTW so that it will handle flows up to 1 . 9 MGD

l yluvrtnNti� (imps Al' / f4w - P• 03
FE9-22-95 WED 9:21 S f( GSI �'�rh( I fUQf,�1/� �`�-
42 .
and meet current NPDES permit limits .' This interim upgrade
must receive DEM approval with as. little delay as possible,
perhaps through a minor modification of the new NPDES permit.
The City requests DEM confirmation as to the availability of
this regulatory mechanism -- and the time required -- to
accomplish approval of this interim upgrade. The City sees
this approval process as separate from, but related to the
larger planning, assessment and permitting process associated
with the Regional POTW.
���c' ♦ It also is critical that the City be able to use its allocated
aoIq revolving loan fund monies , part of which would be spent on
the interim upgrade with the remainder possibly to be spent on
(for example) pump house and pipeline infrastructure already
described in the existing 201 plan. The City requests DEM
input on the feasibility of retaining access to and use of the
full amount of these revolving fund loan monies .
VIP ♦ The City continues its efforts to eliminate infiltration
sources and likely will explore working with DEM in an effort
to adjust standard sewer allocation figures to free up unused
CV 1 ; 0 treatment capacity. Despite these efforts, the City remains
\f concerned that area growth may push actual flow rates above
1 . 9 MGD prior to the completion of Phase I of the new regional POTW. The City requests input on DEM' s willingness to
( • / incorporate language in the interim Slocum Creek permit that,
if necessary, would allow increased flow up to 2 . 25 MGD
n' `\�IVV pending commencement of the operation of Phase I of the
regional POTW, asSuml.ng the City has demonstrated good faith
efforts to reduce water infiltration, reduce water use, and
free up unused sewer allocations .
\ \'. After Phase I of the regional PO`PW becomes operational, the
City would immediately close its Slocum Creek outfall .
However, the City would retain the right to continue to use
the Slocum Creek POTW facility for treatment purposes , with
treated effluent being routed to the new regional facility for
denitrification, dechlorination and eventual discharge via the
Regional facility' s single outfall .
V'M9MAIN/135157
'It should be noted that the City' s current permit limits are
significantly more protective of water quality than those of almost
every other sewage treatment facility located in the lower Neuse
River Basin and that the removal of the (lower quality) Cherry
Point effluent from Slocum Creek is an additional factor mitigating
in the City' s favor. The interim upgrade would include increased
pump capacity, first stage aeration improvements , sludge handling
improvements and sludge storage improvements, but would not include
denitrification and dechlorination .

State of North Carolina
Department of Environment,
Health and Natural Resources • •
Division of Environmental Management
James B. Hunt, Jr., Governor
Jonathan B. Howes, Secretary ED E H N�
A. Preston Howard, Jr., P.E., Director
l,tCw�
February 3, 1995e
Mr. Joe Huffman, City Manager
City of Havelock � y(ye I I
Post Office Box 368
Havelock, North Carolina 28532 rr Fy L
n 12.
Subject: City of Havelock
NPDES Permit No. NCO021253
Craven County
Dear Mr. Huffman:
In accordance with our recent discussions, I wanted to take the opportunity to commit to
paper some of the wastewater management issues we have been discussing.
The-Water-Quality"Sectionis encouraged_thal_the_City_.is--cc—onsidenng celo_cation—of-theJ
subject disctiaige from Slocum Creek.to the Neuse River: As you are aware, the condition
of Slocum Creek has been a concern to water quality staff and we believe that relocation is
a viable long-term wastewater management solution. The relocation would require a
diffuser but effluent limitations would not be as stringent due to the enhanced
characteristics of the Neuse River as a receiving stream. We anticipate that effluent
limitations for the conventional parameters would be:
Parameter Concentration
BOD5 5.0 mg/I
NH3 as N 2.0 mg/I
Total Phosphorus 1.0. mg/
Total Nitrogen 6.0 'mg/I
TSS 30.0 mg/I
Limitations for other parameters such as metals and other toxicants would be dependent
upon several variable, including actual location of the proposed regional facility discharge,
wastewater discharge flow volume and diffuser design. The above limitations would be
applicable for a regional facility within the range of 5.0 to 10.0 MGD as we have
discussed.
We hope that this information will be useful in your planning endeavors. If you have any
questions regarding this matter, please contact either Mr. Don Safrit, P.E., Assistant Chief
for Technical Support, or me at(919) 733-5083.
Sincerely, /
(��-,r /
Steve W. Tedder, Chief
Water Quality Section
cc: Washington Regional Office
Technical Support Branch
P.O. Box 29535, Raleigh, North Carolina 27626-0535 Telephone [phone] FAX [phone]
An Equal Opportunity Affirmative Action Employer 50%recycled/10%post-consumer paper

Facility Average Load (1990-1994
250.00
>.
C
200.00
c
0
0
a
m 150.00
M
c ® Cherry Point
M
rn
.- ® Havelock
v 100.00
f0
0
J
d
d 50.00
a
0.00
BOD TSS NH3 N
Parameter

Havelock WWTP-Load
250.00 Mean Flow- 1990- 0.95MGD
1991 - 1 .10MGD
1992- 1 .07MGD
1993- 1 .15MGD
200.00 1994- 1 .13MGD
T
N
V
V
c 0 BOD
00 150.00
a
d ❑ TSS
rn
m
> NH3
a 100.00
T ON
t
C
c
0
50.00
0.00
1990 1991 1992 1993 1994
Year

USMC-Cherry Point WWTP-Load
300.00 Mean Flow- 1990- 2.04MGD
1991- 1 .99MGD
1992- 1 .84MGD
250.00 1993- 1 .86MGD
,, 1994- 2.38MGD
FA
FA
200.00 ■ BOD
0
0
d ❑TSS
m 150.00
i NH3
T 100.00
® N
r
c
0
50.00
0.00
1990 1991 1992 1993 1994
Year

Cherry Point WWTP
3.00 - 0
2.75 - 0
O
2.50 -
2.25 -
2.00 -
0 1.75 -
1.50 -
LL 1.25 - .. ............
1.00 -
0.75
0.50 -
0.25 -
0.00 -
19W 1991 1992 1993 1994
Havelock WWTP
3.00 -
2.75 -
2.50 -
2.25 -
2.00 -
0 1.75 -
1.50 - u
LL 1.25 -
L L.-
1.00
0.75
0.50
0.25 -
0.00
19W 1991 1992 1993 1994

Page, 9
Note for Ken Eagleson
From: Coleen Sullins
Date: Thu, Feb 16, 1995 8:30 AM
Subject: RE: Slocum Creek
To: Ken Eagleson
Havelock is permitted for the 1.9 MGD - but have not currently built the additional units
neede to take them from the 1.5. I think they are averaging around 1.3 MGD. The base was
to have their discharge out of Slocum Creek by November 1, 1994 - so don't know how
much trend analysis you are really going to be able to do on the creek.
Havelock is in a pinch because of the base expansion causing additional needs in the city's
wwtp. They are going to need some immediate capacity above and beyond the permitted 1.9.
We have told them in the past that 1.9 was the absolute maximum that we were going to
allow in the creek becuase of the water quality problems. They are supposedly looking inot
developing a regional plant at another location, up to 6 MGD I believe and discharging to the
Neuse. We have been trying to get them out of the creek and into the neuse for some time.
However, as always, time is of the essence and they need the flow before they can get a
regional plan under way. They probably are asking Steve for 2.25 as an interim along with a
promise that they will really get out of the creek at this time. They will want to use their
existing plant, without modifications (why spend money when you are going to take it off
line in the short term) so they will be wanting limits that they can meet with sending a higher
flow through the existing plant. My guess is that sieve wants you to see if we can make a
statement that because of the removal of the base there is additional capacity that wasn't
available in the past, allowing us to give Havelock less stringent limits than previously given.
Give me a holler if you need more information. Coleen
From: Ken Eagleson on Thu, Feb 16, 1995 8:16 AM
Subject: FW: Slocum Creek
To: Coleen Sullins
Can you add any comments to STeve's request before I start figuring out how to address his
request? Thanks. Ken.
From: Steve Tedder on Thu, Feb 16, 1995 7:57 AM
Subject: RE: Slocum Creek
To: Ken Eagleson
HAVELOCK IS THE ISSUE. THE BASE IS NOW OUT OF THE CREEK AND WE
HAVE PERMITTED HAVELOCK TO EXPAND FROM 1.5 TO 1.9 IN SLOCUM
CREEK. THEY MAY NOW BE WILLING TO TALK GOING TO THE RIVER AS WE
PREVIOUSLY SUGGESTED.THEY ARE PRETTY LAND LOCKED WHERE THEY
ARE AND IF I MIGHT SEE THE POSSIBILITY OF LETTING THEM GO TO 1.9 OR
EVEN 2.25 AT THEIR CURRENT LOCATION WITH SOME TYPE IF INTERIM
LIMITS IT MIGHT BE THE FINAL INCENTIVE FOR THEM TO GO TO THE RIVER
WITH A DIFFUSER, 5/2 PLANT AND N&P CONTROLS. I NEED TO SEE IF WE ARE
SEEING ANY IMPROVEMENTS . ON SECOND THOUGHT , THE BASE
DISCHARGE MAY NOT BE OUT TO THE RIVER YET. I THINK THE PERMIT GIVES
THEM UNTIL OCT OR NOV ,HAVE TO CHECK WITH COLEEN ON THE SPECIFIC
DATE,

Page 2
From: Ken Eagleson on Wed,Feb 15, 1995 9:50 AM
Subject: Slocum Creek
To: Steve Tedder
When you carried me to work during the blizzard,you asked for some analysis information
to provide to someone you had met at the CMA meeting at the fairgrounds. Whether my
brain was numb at that point I don't know,. so let me get a few more details from you. You
were interested in any trends in slocum creek and something else. Could you refresh my
memory on this please. Thanks. Ken.

,{� Ne Cunront/luA. t e, .c.4-i9/C
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6L vc�* ^.�cP• 1a rro r/6 °DL°2 S•
NPDES minor * �vsl P4 F c��c 44414#444LI /�'°��cQ '�
modification Issuance 4,f j/,� ,, lY�L, ,�; c.
for revising limits VVV
to 5/2 for 1.9 MGD
NPDES application Notice Issuance
for expansion
to 2.25 MGD
Concurrent review Issuance of
of A to C for Plant upgrade to
expansion to"2.25" "2.25"
...................................
* s
EA for Internal Submission of Issuance
expansion Department FONSI to of FONSI
or relocated discharge Review State Clearinghouse
of 10.0 MGD
b
NPDES Application for Notice Issuance
expansion of
relocated discharge
(EA for 10.0)
- - - �
A to C Issuance
Town Of Havelock for effluent Concurrent or
outfall and following issuance
upgrade of of NPDES
1 facility to 10.0 MGD

NPDES minor
modification Issuance
for revising limits
to 5/2 for 1.9 MGD
NPDES application Notice Issuance
for expansion
to 2.25 MGD
Concurrent review Issuance of
of A to C for Plant upgrade to
expansion to"2.25" "2.25"
...................................�Ii.
EA for Internal Submission of Issuance
expansion Department FONSI to of FONSI
or relocated discharge Review State Clearinghouse
of 10.0 MGD
S
NPDES Application for Notice Issuance
expansion of
relocated discharge
(EA for 10.0)
A to C Issuance
Town of Havelock for effluent Concurrent or
outfall and following issuance
upgrade of of NPDES
facility to 10.0 MGD

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Review of Slocum Creek Data
An Excel spreadsheet with measurements of temperature, dissolved oxygen, salinity, and
dissolved oxygen saturation (%) in Slocum creek was obtained from Farrell Keough. The data were
collected for the city of Havelock by Environmental 1. The data were collected from four stations
during the period beginning in May 1994 through June 1995 and represent many measurements per
month.
Although data were collected from four stations, only one station (Station 2) provded an
sufficient amount of data for analysis. Station locations are provided in Table 1. Measurements
were taken at 1, 2 and 3 meters water depth. Data from 1 and 2 in are graphed; measurements from
3 m almost always represented very low dissolved oxygen concentrations and no patterns are
apparent.
Table 1. Sample stations and locations.
Station No. Station Location
1 At Highway 70
2 East Prong of Slocum Creek, at Slocum Village personnel bridge
3 Upstream of Cherry Point outfall and 2 miles below Havelock WNFIT
outfall
4 Above Tucker Creek and 4 miles below Havelock WWTF outfall
Two types of graphs are provided. One set is a box and whisker plot of the measurements by
year and month (e.g. May 1994 is represented as 9405). The second set of graphs represents the
mean and standard deviation of dissolved oxygen. These data are plotted as line graphs. All graphs
represent data from Station 2 only.
1

TEMPERATURE By YR./MO @ 1 METER
30 s —
4
25
T
20 4
B
15
10
5 -
9405 9406 9407 9408 9409 9410 9411 9501 9503 9505 9506
9412 9502 9504
YR/MO
DO By YR/MO @ 1 METER
12
11 _
10
9 �� a
8 6
i 5 _
4
l ------------------- __ _ _ .. _ - -- -
--- - .. ... .......__. . . .... ..... -. ............ . ------ - -
f 2 a
1 T 1
9405 9406 9407 9408 9409 9410 9411 9501 9503 9505 9506
9412 9502 9504
YR/MO
Quantiles: 90%,75%,50%,25%,10%
i
2

SALINITY By YR/MO @ 1 METER
10
J
Q
.................-..�..---------....._T......__..........................................__.._----- ......................................_..........................................
u - - - - T
9405 9406 9407 9408 9409 9410 9411 9501 9503 9505 9506
94129502 9504
YRNO
% SATURATION By YR/MO @ 1 METER
140
130
120
110 -
100
90
80
N 70 ' .�
60
50
40
20
10
se
T 4 r t
0
9405 9406 9407 9408 9409 9410 9411 9501 95039504 9505 9506
9412 9502
YPAJO
Quantiles: 90%,75°%,50%,25%,10°%
3

TEMPERATURE By YR/MO @ 2 METERS
30 Q _
t 4
25 B O T
.......—................................._......................................................... ...................................................................... .. .........................
a 20 —
dry{
15 T
10
5
9405 9406 9407 9408 9409 9410 9411 9501 9503 9505 9506
9412 9502 9504
YR/MO
DO By YR/MO @ 2 METERS
s
8-
7-
6-
4
3
2
1 .
0 �
9405 9406 9407 9408 9409 9410 9411 9501 9503 9505 9506
94129502 9504
YRlMO
Quaniiles: 90%,75%,50%,25%,10%
4

SALINITY By YRIMO @ 2 METERS
10-
..................------------- ......... ............................................ ............................................---------------------------------
E�l
0
940S 9406 9407 9408 9409 9410 9411 9501 9503 9505 9506
9412 9502 9504
YRIMO
% SATURATION By YR/MO @ 2 METERS
0-
70-
60-
50-
40-
30-
20-
10-
0-
9405 9406 9407 9408 9409 9410 9411 9501 95039504 9505 9506
- 9412 9502
YRIMO
Quantiles: 90%,75%,50%,25%,10%
. 5

DO at 1 meter
10.0
5.0
_
■ 0 Std(DO)
O
0.0
IT (O O "r N (7 (n U')
o) 0 m O m 0 m r' C) O O O O O
Year-Month
DO at 2 meters
7.0
6.0 •�
5.0
E 4.0 /� Mean(DO)
a 3.0 a Std(DO)
p 2.0 N�=.K
'1 .0
0.0 F I I I i { i {
(n (D r` M O O N N M V (n O
O O O O O O O O O O O
IT (n to Ln LO (.() (N
m m O O m m m m 0) O m m
Year-Month
Std(DO) = Standard Deviation of dissolved oxygen.
6

Summary Statistics of Slocum Creek Data
SITE DEPTH YEAR N MEAN STANDARD DEVIATION
(meters) MONTH TEMP DO SAL x SAT TEMP DO SAL 90 SAT
'C (mg1l) pot C (m ) ppt
Station 2 1 9405 13 20.8 3.8 2.4 34.9 1.7 3.4 1.5 34.1
Station 2 1 9406 13 26.0 2.2 4.2 25.0 1.8 1.8 1.2 23.9
Station 2 1 9407 11 28.5 0.2 10.8 2.4 0.9 0.1 3.5 1.4
Station 2 1 9408 14 27.9 1.5 11.8 14.9 1.4 1.6 3.7 17.2
Station 2 1 9409 12 24.6 0.9 10.8 11.5 1.6 1.5 3.8 16.6
Station 2 1 9410 13 21.0 1.3 11.2 17.1 1.4 1.9 2.7 25.3
Station 2 1 9411 5 18.0 2.9 9.2 27.6 1.2 3.0 3.6 38.1
Station 2 1 9412 4 14.5 4.4 5.2 28.9 2.6 4.4 4.1 42.1
Station 2 1 9501 4 9.0 8.0 0.0 64.2 2.2 1.0 0.0 5.1
Station 2 1 9502 5 10.8 8.6 0.0 72.2 3.0 0.7 0.0 3.3
Station 2 1 9503 4 15.0 7.3 0.0 54.4 1.2 0.6 0.0 31.7
Station 2 1 9504 12 19.2 6.4 0.2 58.2 2.0 1.5 0.5 17.9
Station 2 1 9505 14 23.2 5.8 2.2 58.6 1.8 3.3 1.0 40.6
Station 2 1 9506 12 23.8 3.0 0.5 30.7 1.2 1.4 1.0 17.4
Station 2 2 9405 13 20.5 2.1 3.0 21.2 1.8 1.7 1.6 19.1
Station 2 2 9406 13 24.5 0.2 5.0 2.5 1.6 0.1 0.7 1.0
Station 2 2 9407 11 29.1 0.1 12.7 1.7 0.7 0.0 3.5 0.5
Station 2 2 9408 14 28.2 0.2 14.6 2.3 0.4 0.1 1.4 0.8
Station 2 2 9409 12 24.8 0.1 13.2 1.7 1.1 0.1 0.8 0.8
Station 2 2 9410 13 20.9 0.5 13.2 5.9 1.6 0.7 1.7 8.6
Station 2 2 9411 5 18.8 0.2 12.4 2.0 1.1 0.1 1.1 1.2
Station 2 2 9412 4 14.5 2.3 7.2 20.6 2.6 3.2 5.0 27.2
Station 2 2 9501 4 10.2 6.1 2.0 50.2 2.8 3.7 4.0 28.4
Station 2 2 9502 5 10.8 6.7 0.6 57.2 1.8 2.9 1.3 25.0
Station 2 2 9503 4 13.2 3.2 1.9 29.1 1.5 2.2 2.1 20.1
Station 2 2 9504 12 17.8 3.8 1.2 38.7 2.1 2.1 0.9 20.6
Station 2 2 9505 14 22.9 1.0 3.2 11.5 1.9 1.2 1.0 13.1
Station 2 2 9506 12 23.4 0.8 1.5 8.4 1.2 0.9 1.5 9.9
Station 2 3 9405 13 20.4 1.9 3.2 20.4 1.7 1.8 1.6 19.3
Station 2 3 9406 10 22.4 0.1 5.2 1.4 1.6 0.0 0.7 0.5
Station 2 3 9407 10 29.4 0.1 12.9 1.6 1.0 0.0 3.8 0.1
Station 2 3 9408 14 28.0 0.1 14.7 1.6 0.6 0.0 1.9 0.1
Station 2 3 9409 12 24.9 0.1 13.4 1.6 0.8 0.0 0.7 0.4
Station 2 3 9410 13 21.3 0.1 13.8 1.4 1.7 0.0 1.3 0.1
Station 2 3 9411 5 18.8 0.1 12.8 1.3 1.1 0.0 1.1 0.0
Station 2 3 9412 4 16.5 0.2 11.2 2.1 0.6 0.1 1.0 1.8
Station 2 3 9501 4 10.5 4.6 3.0 37.6 3.4 3.8 4.2 29.4
Station 2 3 9502 5 10.8 5.6 1.3 48.4 1.6 3.4 1.8 29.1
Station 2 3 9503 4 12.5 0.4 5.2 4.1 0.6 0.1 0.5 1.2
Station 2 3 9504 12 14.8 0.3 3.5 3.0 0.8 0.1 0.5 0.9
Station 2 3 9505 14 20.4 0.2 3.6 2.1 2.9 0.2 0.7 2.0
Station 2 3 9506 12 22.8 0.2 2.1 2.0 1.0 0.1 1.4 1.1
Station 3 1 9406 2 28.5 7.5 5.2 99.4 2.1 2.4 0.4 28.9
Station 3 1 9407 2 30.0 4.8 10.0 74.1 1.4 4.3 4.2 71.4
Station 3 1 9408 2 28.5 6.6 12.0 92.6 0.7 9.1 4.2 128.6
t Station 3 1 9409 2 25.5 4.5 13.5 7.3 2.1 6.2 2.1 8.2
a Station 3 1 9506 2 25.0 6.9 1.5 80.6 0.0 2.1 0.7 23.8
iy Station 4 1 9406 2 29.5 6.9 8.0 99.9 2.1 0.2 0.0 0.6
Station 4 1 9407 2 31.0 5.2 13.0 84.1 0.0 2.8 4.2 50.3
Station 4 1 9408 2 29.0 7.9 15.0 123.9 1.4 2.8 2.8 34.7 \
Station 4 1 9409 2 26.0 6.4 15.5 98.1 1.4 4.6 2.1 69.1
Station 4 1 9506 2 25.0 7.8 4.0 49.9 0.0 0.8 1.4 51.8
r( YEAR/MONTH: e.g 9405=Year,199�a,-td Month=05
17 DO--Dissolved Oxygen; N=Sample size; SAL--Salinity-t %SAT=Percent saturation for dissolved oxygen.
7
j;
i
1-