NC0082139_Permit Issuance_20041201

December 1, 2004
Mr. Randall D. Emory, P.E.
Director of Water Resources
Greenville Utilities Commission
P.O. Box 1847
Greenville, North Carolina 27835-1847
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
Subject: NPDES PERMIT ISSUANCE
Permit Number NCO082139
Greenville Water Treatment Plant
Pitt County
Dear Mr. Emory:
Division personnel have reviewed and approved your application for renewal of the subject
permit. Accordingly, we are forwarding the attached final NPDES discharge 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).
If any parts, measurement frequencies or sampling requirements contained in this permit are
unacceptable to you, you have the right to an adjudicatory hearing upon written request within
thirty (30) days following receipt of this letter. This request must be in the form of a written
petition, conforming to Chapter 150B of the North Carolina General Statutes, and filed with the
Office of Administrative Hearings (6714 Mail Service Center, Raleigh, North Carolina 27699-
6714). Unless such demand is made, this permit shall be final and binding.
Please take notice that this permit is not transferable. This permit does not affect the legal
requirements to obtain other permits which may be required by the Division of Water Quality or
permits required by the Division of Land Resources, Coastal Area Management Act, or any other
Federal or Local governmental permits which may be required.
If you have any questions or need additional information, please do not hesitate to contact
Maureen Crawford of my staff at [phone], extension 538.
Sincerely,
ORIGINAL SIGNED BY
Y8 J:iw ;;:.!,.Mark McIntire
AlaV W. Klimek, P.E.
Director, Division of Water Quality
cc: Central Files
NPDES Unit Files
Washington Regional Office
1617 MAIL SERVICE CENTER, RALEIGH, NORTH CAROUNA 27699-1617 - TELEPHONE [phone]/FAX [phone]
VISIT us ON THE WEB AT http://h2o.enr.state.ne.us/NPDES

Permit NCO082139
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
In compliance with the provisions 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
Greenville Utilities Commission
is hereby authorized to discharge wastewater from a facility located at the
Greenville WTP
1721 Waterway Road
Greenville
Pitt County
to receiving waters designated as the Tar River in the Tar -Pamlico 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 January 1, 2005.
This permit and authorization to discharge shall expire at midnight on October 31, 2009.
Signed this day December 1, 2004.
ORIGINAL SIGNED BY
Mark McIntire
Alan W. Klimek, P.E., Director
Division of Water Quality
By Authority of the Environmental Management Commission

Permit NCO082139
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 included herein.
The Greenville Utilities Commission is hereby authorized to:
1. Continue to operate a water treatment plant with a discharge of filter -backwash and settling lagoon -
decant wastewater. This facility is located at the Greenville WTP, west of Greenville at 1721
Waterway Road in Pitt County.
2. Discharge from said treatment works at the location specified on the attached map into the Tar
River, classified C-NSW waters in the Tar -Pamlico River Basin.

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IaRNde: 35"38'04" NC0082139
I.ongtude: 77°2355"
Facility z
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Receiving Strewn: Tar River
7
Location
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Permit NCO082139
A. (I.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS — FINAL
During the period beginning on January 1, 2005 and lasting until expiration, the Permittee is authorized
to discharge from outfall 001. Such discharges shall be limited and monitored by the Permittee as
specified below:
EFFLUENT -
CHARACTERISTICS
LIMITS
MONITORING REQUIREMENTS
Monthly
Average
Daily
Maximum
Measurement
Frequency
Sample Type
Sample Location
Flow
Weekly
Instantaneous
Effluent
Total Suspended Solids
30.0 mg/L
45.0 mg/L
2/Month
Grab
Effluent
Settleable Solids
0.1 ml/L
0.2 ml/L
Weekly
Grab
Effluent
Turbidity[
Weekly
Grab
Effluent
Iron
Weekly
Grab
Effluent
Total Nitrogen
(NO2+NO3+TKM
2/Month
Grab
Effluent
Total Phosphorus
2/Month
Grab
Effluent
Aluminum
Weekly
Grab
Effluent
Footnotes:
The discharge from this facility shall not cause turbidity in the receiving stream to exceed 50 NTU.
If the instream turbidity exceeds 50 NTU due to natural background conditions, the discharge
cannot cause turbidity to increase in the receiving stream. If effluent turbidity exceeds 50 NTU,
weekly instream monitoring shall be required until such time as it is shown that effluent turbidity is
consistently less than 50 NTU.
All samples must be collected from a typical discharge event.
THERE SHALL BE NO DISCHARGE OF FLOATING SOLIDS OR VISIBLE FOAM IN OTHER THAN TRACE AMOUNTS.

Permit NC0082139
A. (2.) NUTRIENT REDUCTION REQUIREMENT
The Tar -Pamlico Nutrient Sensitive Waters (NSW) Implementation Strategy requires a total reduction
in nutrients (total phosphorus and total nitrogen) within the Tar -Pamlico River basin.
If requirements other than those listed in this permit are adopted as part of a future revision to the NSW
strategy, the Division reserves the right to reopen this permit and include those requirements.
If requirements other than those listed in this permit are adopted to prevent localized adverse impacts
to water quality, the Division reserves the right to reopen this permit and include those requirements.

_ws AFFIDAVIT
... cAROLINA
PITT COUNTY:
Allison Hennasey affirms that she is clerk of The Daily
Reflector, a newspaper published daily at Greenville,
Pitt County, North Carolina, and that the advertisement,
a true copy of which is herreto attached, entitled
Public Notice
NCDENR
was published in said The Daily Reflector on the following
dates:
Oct. 17, 2004
and that the said newspaper in which such notice, paper,
document or legal advertisement was published, was at the
time of each and every publication, a newspaper meeting
all of the requirements and qualifications of Chapter 1,
Section 597 of the General Statutes of North Carolina and
was a qualified newspaper within the meaning of Chapter
1, Section 597 of the General Statutes of North Carolina.
Lb ���
Affirmed and subscribed before me this � day
of��
(Notary Public)
My commission expires
of
below ettecnve 1.
from the publish us,&
notice.
Written comments regard
Ing the proposed permit will.
be accepted until 30 days.
after the publish date of this,
'notice. All 'comments
received prior to that date
are considered In the final
determinations regarding
the proposed permit. The
Director of the. NC Division
of: Water Dualitymay
decide to held a public
meeting for the proposed
permit should -the Division
`receive a significant degree
of public Interest.
Cables of the draft per
antl other suppprtIn9 infgr-
mahan on file used to det IFS
mine.. conditions present' in
the-.tlraft permit are ovall-
able upon request and pay-
ment of the costs of repro
persons may -also vrsn m
Division of Water Quality at
512 N.
a
Raleigh, SNC u276 4 1148
between the hours of B:OO
a.m. and. 5:00 p.m. to
review information on file.
They Greenville Utilities
Commission has applied for
renewal of the NPDES per.
mit '(NC0012139M for its
facility dischargitig to the
Tar River, a class C-NSW
water in the Tar -Pamlico
River Basin. Currently
CSOD and ammonia. nitro
Ben are water quality limit-
ed. This discharge may
affect future allocations in
this position of the
watershed.
Oct. 15. 2904.
OCT 2 2 2004
DFRR - WATER QUALM
POINT SCUFCCE' BRA;CH

V
Greenville
Utilities April 27, 2004
Mrs. Valery Stephens
NC DENR, Division of Water Quality
Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
RE: Renewal Application of NPDES Permit NC0082139
Greenville Utilities Commission, Pitt County
Dear Mrs. Stephens:
By way of this submittal the Greenville Utilities Commission is requesting renewal
of the subject permit.
Enclosed please find an original and (2) two copies of the NPDES permit
application (short form C-WTP), an authorization letter and the sludge
management plan for this facility.
The Water Treatment Plant has under gone an expansion and the treatment
process has been upgraded since the last permit was issued. The expansion
project increased the treatment capacity from 15.0 mgd to 22.5 mgd and included
the addition of two (2) sedimentation basins and three (3) filters. The treatment
process upgrade included the addition of ozone facilities, chloramination feed
equipment, potassium permanganate feed equipment and the addition of sludge
removal equipment. As a result of the additional filters, sedimentation basins and
sludge removal equipment the process waste water discharge is in the 0.5 mgd
to 0.99 mgd flow range.
If you have any questions or need additional information, please contact Ricky
Langley at [phone].
Sincerely,
Randall D. Emory, P.
Director of Water Resources
/jh
PO Box 1847
Greenville, NC Enclosures
27835-1847
252752-7166 cc: Mr. Ronald D. Elks, Interim General Manager
Mr. Barrett L. Lasater, Plants Manager
www.guc.com Mr. Ricky G. Langley, Supt. Water Treatment Plant
Y,,m Local
Advantage

NPDES PERMIT APPLICATION - SHORT FORM C-WTP
For discharges associated with conventional water treatment plants
N. C. Department of Environment and Natural Resources
Division of Water Quality / NPDES Unit
1617 Mail Service Center, Raleigh, NC 27699-1617
NPDES Permit Number C0082139
1. Contact Information:
Facility Name
Owner Name
Street Address
City
State / Zip Code
Telephone Number
Fax Number
e-mail Address
Operator Name
Street Address
City
State / Zip Code
Telephone Number
PIease print or type
Greenville Water Treatment Plant
Greenville Utilities Commission
801 Mumford Road/PO Box 1847
Greenville
NC 27835-1847
252) 551-1554
252) 551-1598
-emoryrdlaguc. com
Greenville WTP
1721 Waterway Road
Greenville
NC 27834
( 252 ) 551-1561
2. Location of facility producing discharge:
Facility Name (If different from above)
Street Address or State Road
City / Zip Code
County
Greenville WTP
1721 Waterway Road
Greenville 27834
Pitt
3. Standard Industrial Classification (SIC) Codes: 4941
4. Principal process(es): Coagulation, F1 occul ati on, Sedi mentati on, Ozonati on, Fi 1 trati on
5. Ownership Status:
Federal F7 State 0 Private 0
6. Check here if discharge is continuous El
If not continuous,
Frequency of discharge during the day:
Frequency of discharge during the month (week):
7. Number of separate discharge points: 1
S. Description of source water(s) (Le. groundwater or surface water)
Surface
Public El
Page 1 of 2 Version -08103

NPDES PERMIT APPLICATION - SHORT FORM C-WTP
For discharges associated with conventional water treatment plants
9. Name of receiving stream(s) (Provide of map of exact location of each outj'all, including latitude and
longitude: .
Tar River
10. List all permits, construction approvals and/or applications (check all that apply and provide
permit numbers or check none if not applicable):
Permit Number
[ None
0 UIC
0 NPDES
0 PSD
0 NESHAPS
True Permit Number
Non -Attainment
0 Ocean Dumping
Dredge/Fill Permits
0 RCRA
Other
11. Is this facility located on Native American lands? (check one)
NO
12. Please list all water treatment additives, including cleaning chemicals, that have the
otent'al to_ be discharged.
Potassium oPermangana-re, Powdered Activated Carbon, Copper Sulfate,
o ya uminum Chloride, Sodium Hydroxide, odium blsulfite,Fluoride,
Chlorine DPD Reagents: (acidic —salts), Ozone Reagents: Malonic Acid,
Potassium Acid Malonate, Phosphate, Polyacr lamide, Ammonium Hydroxide
Joy Dishwashing Detergent, Top Job & Mr. Clean Multi Puraose Cleaner
(Cleaners and detergent used for washing vehicles and trash cans)
13. For NEW water treatment plants, please submit all analyses of source water collected.
N/A
I certify that I am familiar with the information contained in the application and that to the best
of my knowledge and belief such information is true, complete, and accurate.
Randall D. Emory,P.E. Director of Water Resources
Printed name of Person Signing Title
s � y
Signature of Applicant /— Date
North Carolina General Statute 143-215.6 (b)(2) provides that: Any person who knowingly makes any false statement representation, or
certification in any application, record, report, plan, or other document files or required to be maintained under Article 21 or regulations of the
Environmental Management Commission implementing that Article, or who falsifies, tampers with, or knowingly renders inaccurate any
recording or monitoring device or method required to be operated or maintained under Article 21 or regulations of the Environmental
Management Commission implementing that Article, shall be guilty of a misdemeanor punishable by a fine not to exceed $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 of not more than $10,000 or
imprisonment not more than 5 years, or both, for a similar offense.)
Page 2 of 2 Version -08103

V
Greenville
Utilities
April 27, 2004
Ms. Valery Stephens
NC Dept. of Environment and Natural Resources
Division of Water Quality
Point Source Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Greenville Utilities, Water Treatment Plant
NPDES Permit # NC0082139
Permit Contact Official
Dear Ms. Stephens:
Please be advised that Randall D. Emory, PE, Director of Water Resources, is
designated as the Permit Contact Official for NPDES Permit # NC0082139. All
correspondence related to this permit should be forwarded to Mr. Emory's
attention.
Also, please note that Ricky G. Langley remains the Operator In Responsible
Charge for this facility and signatory authority will continue to be delegated to
him to sign Discharge Monitoring Report Forms as Permittee.
If you have any questions, or if I can be of further assistance in this matter,
please contact me at (252)-551-1502.
Sincerely,
��,4,12 /, (�
Ronald D. Elks
Interim General Manager
PO Box 1847 RDE/jhb
Greenville, NC cc: Mr. Randall D. Emory, PE, Director of Water Resources
27835-1847 Mr. Barrett L. Lasater, Plants Manager
252 75 2-7166 Mr. Ricky G. Langley, Water Treatment Plant Superintendent
www.guc.com
Your Local
Advantage

Memorandum
To: Rick Langley
From: Bill Dowbiggin
Date: April28, 2004
Subject: Alum Residuals Management Plan
Camp Dresser and McKee (CDM) is pleased to provide this technical memorandum
illustrating the updated residuals management calculations for lagoon life for the Greenville
Utilities Commission Water Treatment Plant (GUC-WTP) sludge lagoon. The results of these
calculations are summarized below.
Evaluation
The Residuals Pond Volumetric Survey conducted by Spruill & Associates Inc. in March 2001
illustrates the following points.
■ The lagoon was 55.4% full to the "low" freeboard line.
■ The total capacity of the lagoon to the "low" freeboard line was approximately 75 million
gallons (mg). The water surface elevation on March 3, 2001 is defined as the "low"
freeboard line.
■ Approximately 42 million gallons of sludge had accumulated in the lagoon at that time and
the remaining lagoon free capacity to "low" freeboard line was approximately 34 million
gallons.
The following evaluation conservatively assumes all of the aluminum in the polyaluminum
chloride precipitates as aluminum hydroxide.

Ricky Langley
04/28/04
Page 2
On the basis of the following equation, the estimated residual quantities under several flow
scenarios are summarized in Table 1.
S=8.34*Q(4.9C+SS+A+1.9Fe+1.58Mn)
where,
S = sludge produced (lb/ day)
Q = plant flow (mgd)
C = coagulant dose, (mg/ L as Al) = 3.5 mg/ L (which is equivalent to 16.8 mg/1
of 4.9 lb/ gal PACT as reported)
SS = raw water suspended solids (mg/ L) = b * Tu
b = correlation factor assumed to be 2.0
Tu = raw water turbidity (ntu)
A = additional chemicals added (mg/L) - in the case, polymer plus TOC
removed in mg/ L
Fe = raw water iron concentration (mg/ L)
Mn = raw water manganese concentration (mg/ L)
Assuming that the sludge in the lagoon will eventually thicken to an average solids
concentration of 8%; Table 1 shows that the lagoons will not be full for the 10 year planning
horizon. The remaining capacity in 2001 was 34 million gallons and the estimated additional
sludge accumulation at the end of 2014 is about 21 million gallons. If the sludge consolidates
beyond 8 %, more can be accumulated. Samples show that thicker sludge is achieved thus far
in the lagoon. The 2001 results showing percent solids in the sludge samples, taken at three
different locations and tested by GUC ranged from 7.4% to 32.3%.

Ricky Langley
04/28/04
Page 3
Table 1: Summary of Residual Quantities
8% Solids
Average
Water
Demand
Total
Solids
Total
Solids
Sludge
Volume
Yearly
Sludge
Volume
Total
Sludge
Accumulation
Year
(MGD)
(lbs/day)
( dry
tons/day)
(gpd)
(MG)
(MG)
2001
10.5
3182
1.59
4578
1.67
1.67
2002
10
3031
1.52
4360
1.59
3.26
2003
10
3031
1.52
4360
1.59
4.85
2004
10.3
3122
1.56
4490
1.64
6.49
2005
10.6
3213
1.61
4621
1.69
8.18
2006
10.9
3304
1.65
4752
1.73
9.91
2007
11.2
3394
1.70
4883
1.78
11.70
2008
11.5
3485
1.74
5014
1.83
13.53
2009
11.8
3576
1.79
5144
1.88
15.40
2010
12.1
3667
1.83
5275
1.93
17.33
2011
12.4
3758
1.88
5406
1.97
19.30
2012
12.7
3849
1.92
5537
2.02
17.42
2013
13
3940
1.97
5667
2.07
19.40
2014
13.3
4031
2.02
5798
2.12
21.42
where,
C=3.5mg/LasAl
Tu = 9 NTU
SS =18 mg/L
A = 4 mg/L
Fe = 0.075 mg/L
Mn = 0.03 mg/L

-44
SPruM & Associates Inc
2747 East Tenth Street
Greenville, North Carolina. 27858
April 9, 2001
I;Ucky Langley
Greenvale utilities Co=
P.O. Box 1847
Greenville, N.C. 27835-1
252*/ 757-1Z00
Post-ir Fax Note 7671
Dana 7/Z7A PZb-
To � /�
�01��1Lrjs/I�%
Fmm
CGM0pL `- %'�
CO.
Phone ii _ I &` " �D
•
Fnmw #
Fax .
Fax 0
RE: Job No. QI0.3I -----� •
-G
Alin pond volumetric survey
G.V.C. P.Q. No, 53115
Dear Mr.
We have concluded our survey of the almn pond or residuals basin at the water.
Plant Cross sections were taken at one hundred foot intervals with shots beia atifLyfo nt
+/.. increments along each section line. To facilitate the requested ealculatio g taken at f�.y foot
original bottom elevations were taken from information provided b GUC the Preexisting or
July and October of 1984. This information was converted to our m work done in
computational purposes. Some of the key elevations used for com " (NGVD 1929) for
28.7 = Highest tpp of bank elevation P atrons are as follows:
26.7 board line
22.0.Lowest top of bank elevation
20.0 Low freeboard line and water surface elevation
Our comptrtations yield the following results as of March 23, 2001:
207,939 cy. Amount of fill that has been, pied in pond
I67,1*10 c.y. Unused capacity remaining to low -free board line
271,583 c.y. Volume from low.freeboard line. to high freeboard line
Based on these f b'ures, the pond is 55.4a/o full to the low freeboard line of 32.2° .
the /a hill to
high freeboard line. Calculations using the high freeboard line assmne that t
banks of the pond would be filled to the highest top of bank elevation w • he perimeter .
side slopes. hale maintaining existing
Thanks for this Opportunity to be of service and please call should u have an u
or require any additional information conc;min Yo Y questions
g this inattet.
Sincerely,
e
Stephen N. SprU 11, PLS
01031 - GUC
aasitlui�t��I��i
� 1 r
Qs "
3 SEALdo s
87
ob
N..
11 -'1•1 s% '.f.. .
., ,
RRCFtvFn Apo 1 7 nnn4

NJ_ �51DUALS BASIN'
(ALUM. POND)
00 0
JILOW1 5REBP(1ARD U NE
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67U RFAC9 91-W.)
n 3'Z 3-O I
V
r
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o- qq
j OW 9ST TO P o If VAN K 51,
n�\ Z'r
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nzo,o' 42WATSmi-EvEL
FULL ARuP} 1
A0-71439 Cy I
1
3
_ f
0_3o I
0
� l
TOF or- �iC-AOWALL AT NON fwNd
CORN 9 R) El..6ve 19,
�wXi STIN y sorrom EL.EVATIONS_:��4 �N .FROM
I��oRMArIoN �RoYt�Ed eY Gu -Pasrxa OBI
> roRK PER
PORMC-P IN XU LY ' OM , 19"
loggia
N144fyTVF13ANK 9L.=2�.;
a17 1, sea C71w� /
11 Cy /, i
i J
Zoo,E CAPA61Ti M 1 4-1 19.1'33
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19 -1-0 0
"POND I5 554g76 F11LLTOALOW, FREC
AMP 3Z.Z�, fIj To''�IG H�, �.ARB LIB
FEEBOAF.CIN
Spruill & ,Associates In
71747 ", • T . .,

e - C
•`• •._ ry - _ • • •• Myv Ile• •Jr•• •L•rwiV u•LV v.w/ • .•M• •eV• �VJ�rJV ♦ L VVe/ i � Ve•i
-ett lsater-'Decant Alum Sludge • �. �- _ ' " "" _ • • --- • •---- • - • - _ ..�..._ _
page
From: Michael Oxendine
To: Bud Greer
Date; 2/28101 8:30AM
Subject: Decant Alum Sludge
These are the numbers for percent solids using a 50g sample.
Sample Location One-15.25%
Sample Location Two -14.01 %
Sample Location Three - 28.40%

UUL LI-LUU1 C111 UJ111 (II VUV nnl L, IILJUUuvLJ liul Ilv, L�L.iV11 VJU
MRY-10-01 99:34 PM
1. U'
P.02
35100%
30, 00%
25.00%
20.00%
c
u
15.00%
L
IL
10.00%
5.00%
0.00%
0 2/2,8/01
■
S 3127/01
Decant: Percent Soilds
22.60% \`
15.25% 14.01%
Sample I Sample Sample
Location One Location Two I Location
Three
i 5.25% 14.01 % 28.40%
22.60% 7.40% 32.26%
Samples Locations