NC0032077_Permit (Modification)_20120117

NPDES DOCUMENT SCANNIN`: COVER SHEET
NPDES Permit:
NC0032077
Contentnea MSD WWTP
Document Type:
Permit Issuance
Wasteload Allocation
Authorization to Construct (AtC)
Permit Modification
Complete File - Historical
Engineering Alternatives (EAA)
Correspondence
Owner Name Change
Instream Assessment (67b)
Speculative Limits
Environmental Assessment (EA)
Document Date:
January 17, 2012
This document is printed on reuse paper - ligprkoore any
content on the rezrerose side

ATI
NCDENR
North Carolina Department of Environment and Natural Resources
Division of Water Quality
Beverly Eaves Perdue Charles Wakild, P. E. Dee Freeman
Governor Director Secretary
January 17, 2012
Mr. Chuck Smithwick
District Manager
Contentnea Metropolitan Sewerage District
P.O. Box 477
Grifton, North Carolina 28530
Subject: Issuance of NPDES Permit Modification
Permit No. NC0032077
Contentnea MSD WWTP
Pitt County
Dear Mr. Smithwick:
Division personnel have reviewed and approved your application for issuance of the subject
permit modification. Accordingly, we are forwarding the attached Modified 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 October 15, 2007 (or as subsequently amended).
This permit modification provides for an expansion from 2.85 MGD to 3.5 MGD discharge.
There are the following changes in this fmal permit modification from the draft permit sent to you:
• Limits for BOD and Ammonia -Nitrogen have been changed according to discussions with your
Engineer. The revised limits for BOD are based on the Division's Swamp water permitting
strategy; the limits for Ammonia -Nitrogen are based on toxicity calculations.
If any parts, measurement frequencies or sampling requirements contained in this permit
modification 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 decision shall be final and binding.
1617 Mail Service Center, Raleigh, North Carolina 27699-1617
Location: 512 N. Salisbury St. Raleigh, North Carolina 27604
Phone: [phone] FAX: [phone]
Internet www.ncwateraualitv.orq
Nose Carolina
�tura!ly
An Equal Opportunity 1 Affirmative Action Employer

Please note that this permit is not transferable except after notice to the Division. The Division
may require modification or revocation and reissuance of the permit. 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, the Coastal Area Management Act or any other
Federal or Local governmental permit that may be required.
If you have any questions concerning this permit, please contact Jim McKay at telephone number
[phone].
CC:
• Washington Regional Office, Attn: Al Hodge
• Washington Regional Office, Attn: Roger Thorpe - via. Email
• Washington Regional Office, Attn: Kristin Jarmin - via. Email
• Central Files
• NPDES File
• TACU, attn: Steve Reid - via. Email
• Aquatic Toxicology Attn: Susan Meadows - via. Email
• Environmental Sciences Section, Attn: Carrie Ruhlman- via. Email
• EPA Region IV - with factsheet.
• Wooten Company/ 120 North Boylan Avenue/ Raleigh, NC 27203-1423/ Attn: Mr. Charlie Davis

.• Permit NC0032077
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,
Contentnea Metropolitan Sewerage District
is hereby authorized to discharge wastewater from a facility located at the
Contentnea MSD WWTP
900 Wiley Gaskins Road, Crofton
Pitt County
to receiving waters designated as Contentnea Creek in the Neuse River Basin
in accordance with effluent limitations, monitoring requirements, and other conditions set forth in Parts I, II, III,
and IV hereof.
The permit modification shall become effective on March 1, 2012.
This permit and the authorization to discharge shall expire at midnight on May 31, 2013.
Signed this day January 17, 2012.
merles Wakild, P.E., Director
'Division of Water Quality
By Authority of the Environmental Management Commission

Permit NC0032077
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.
Contentnea Metropolitan Sewerage District
is hereby authorized:
1. to continue to operate an existing 2.85 MGD wastewater treatment facility consisting of:
• one mechanically cleaned bar screen and one manually cleaned bar screen
• grit removal
• two (2) activated sludge units
• clarifiers
• chemical phosphorus removal system
• methanol storage and feed system for enhanced denitrification
• a three -bank UV disinfection system
• post -aeration basin
• aerobic sludge digester and sludge drying beds
• four tertiary denitrification filters
• three backwash aeration blowers
• a post aeration system
• effluent outfall discharge line into Contentnea Creek
• backup electrical generator
located at the Contentnea MSD WWTP on Wiley Gaskins Road in Grifton, Pitt County;
2. to discharge from said treatment works, at the location specified on the attached map, to Contentnea
Creek, a class C-Swamp NSW waterbody within the Neuse River Basin;
3. after receiving an Authorization to Construct from the Division, to construct an expansion to the WWTP
to increase capacity to 3.5 MGD including:
• A 5 stage biological nutrient removal (BNR) process with anaerobic, pre -anoxic, aeration, post -
anoxic and post -aeration zones,
• Two circular clarifiers
• RAS/ WAS pump station
• Biosolids dewatering facility
• SCADA improvements
• The two existing aeration basins will be converted for use as flow equalization facilities
• The existing second stage aeration tanks, first stage clarifiers and second stage clarifiers will be
converted for use as part of aerobic sludge stabilization and storage
4. after submittal of an Engineer's Certification, to operate the expanded WWTP, and,
5. to discharge from said treatment works, at the location specified on the attached map, to Contentnea
Creek, a class C-Swamp NSW waterbody within the Neuse River Basin.

Permit NC0032077
Contentnea Metropolitan
Sewerage District WWTP
Latitude: 35° 21' 20" N Stare Grid/Quad: F 29 SW / Grifon. NC
Longitude: 77° 24' 58" W 8-Digit Ill IC: 03020203
Receiving Stream: Contentnea Creek Stream Class: C-Sw:NSW
Drainage Basin: Ncuse River Basin Sub -Basin: 03-04-07
NPDES Permit No. NC0032077
Pitt County

Permit NC0032077 4
A.(1.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on the effective date of this permit and lasting until expansion above 2.85 MGD or until expiration, the
Permittee is authorized to discharge treated wastewater from Outfall 001 into Contentnea Creek. Such discharges
shall be limited and monitored by the Permittee as specified below:
PARAMETER
':EFFLUENT LIMITATIONS
MONITORING REQUIREMENTS
Monthly
Average
Weekly
. Average
Daily
Maximum
Measurement .'
Frequency
Sample
::Type _
Sample
=Location 1
Flow (MGD)
2.85
Continuous
Recording
I or E
Total Monthly Flow (MG)
Monitor and Report
Monthly
Recorded or
Calculated
I or E
BODS, 20°C 2
22.0 mg/L
33.0 mg/L
Daily
Composite
I, E
Total Suspended Solids 2
30.0 mg/L
45.0 mg/L
Daily
Composite
I, E
NH3 as N
15.0 mg/L
35.0 mg/L
Daily
Composite
E
Total Residual Chlorine 3
28 µg/L
Daily
Grab
E
Temperature ° C
Daily
Grab
E
Fecal Coliform (geometric
mean)
200/100 mL
400/100 mL
Daily
Grab
E
pH
Shall not fall below 6.0 nor exceed 9.0
standard units.
Daily
Grab
E
Dissolved Oxygen
Daily avg. shall not fall below 5.0 mg/L
Daily
Grab
E
Total Phosphorus
2.0 mg/L (Quarterly average) 4
Weekly
Composite
E
TKN (mg/L)
Monitor and Report
Weekly
Composite
E
NO3-N + NO2-N (mg/L)
Monitor and Report
Weekly
Composite
E
Total Nitrogen, TN (mg/L) 5
Monitor and Report
Weekly
Composite
E
TN Load 6,7
Monitor and Report (lb./mo.)
37,100 lb/yr (effective 1/1/11)
Monthly
Annually
Calculated
E
Cyanide
22 µg/L8
22 µg/L8
Weekly
Grab
E
Conductivity, µmho/cm
2/Month
Grab
E
Total Copper, µg/L
2/Month
Composite
E
Total Zinc, µg/L
2/Month
Composite
E
Chronic Toxicity 9
Quarterly
Composite
E
Temperature, °C
Variable 10
Grab
U, D
Dissolved Oxygen, mg/L
Variable 10
Grab
U, D
Conductivity, µmho/cm
Variable 10
Grab
U, D
PPA Scan
Annual 11
(See next page for footnotes)

Permit NC0032077
Footnotes:
1. Sample Locations: I — Influent; E — Effluent; U — Upstream at NCSR 1800; D- Downstream at Jolly's Old
Field Landing. Upstream and downstream samples shall be grab samples.
2. Monthly average effluent BOD5 and total suspended solids (TSS) concentrations shall not exceed 15% of
their respective influent value (i.e., 85% removal is required).
3. Total Residual Chlorine shall be monitored only if the facility uses chlorine or a chlorine derivative for
disinfection. The Division received EPA approval to allow a 50 ug/L TRC compliance level. You must
report actual results on DMR submittals, but for compliance purposes, all TRC values below 50 µg/L will
be deemed compliant.
4. Quarterly average for Total Phosphorus shall constitute the average of composite samples collected
weekly during each calendar quarter (January -March, April -June, July -September, October -December).
5. For a given wastewater sample, TN = TKN + NO3 N+NO2 N, where TN is Total Nitrogen, TKN is Total
Kjeldahl Nitrogen, and NO3-N+NO2-N are nitrate and nitrite nitrogen, respectively.
6. TN Load is the mass quantity of Total Nitrogen discharged in a given period of time. See Special
Condition A.(3.), Calculation of Total Nitrogen Loads.
7. Compliance with this limit shall be determined in accordance with Special Condition A.(4.) of this
permit, Annual Limits for Total Nitrogen.
8. Cyanide — The Division shall consider all cyanide values reported below 10 µg/L to be "zero" for
compliance purposes only. However, the Permittee shall record on DMRs all values reported by a North
Carolina -certified laboratory (even if these values fall below 10 µg/L), and the Permittee shall use these
reported values to calculate averages, if any, as required by the permit.
9. Chronic Toxicity (Ceriodaphnia) P/F @ 11%, January, April, July, and October [see A.(6.)].
10. Variable Stream Sampling — Stream samples shall be taken three times per week during the months of
June, July, August and September, and weekly during the remainder of the year. As a participant in the
Lower Neuse Basin Association, Inc. (LNBA), the subject facility is not responsible to conduct instream
monitoring. Should the Permittee terminate its membership in the Association for any reason, the
Permittee shall immediately notify the Division in writing and immediately assume stream sampling
requirements as described herein.
11. PPA Scan (Effluent Pollutant Scan) — see Special Condition A.(7.)
FINAL DISCHARGE SHALL CONTAIN NO FLOATING SOLIDS OR FOAM VISIBLE IN OTHER THAN TRACE AMOUNTS.

Permit NC0032077
A.(2.) EFFLUENT LIMITATIONS AND MONITORING REQUIREMENTS
Beginning on submission of an Engineer's Certification and lasting until expiration, the Permittee is authorized to discharge
treated wastewater from Outfall 001 into Contentnea Creek. Such discharges shall be limited and monitored by the Permittee
as specified below:
PARAMETER
EFFLUENT LIMITATIONS -
MONITORING REQUIREMENTS.
Monthly
Average
Weekly
Average
Daily
Maximum :
Measurement
'Frequency -
Sample
Type `
Sample
Location 1
Flow (MGD)
3.5
Continuous
Recording
I or E
Total Monthly Flow (MG)
Monitor and Report
Monthly
Recorded or
Calculated
I or E
BOD5, 20°C 2
15.0 mg/L
22.5 mg/L
Daily
Composite
I, E
Total Suspended Solids 2
30.0 mg/L
45.0 mg/L
Daily
Composite
I, E
NH3 as N (April 1 -October
31)
6.0 mg/L
18.0 mg/L
Daily
Composite
E
NH3 as N (November 1 -
March 31)
12.0 mg/ L
35.0 mg/ L
Daily
Composite
E
Total Residual Chlorine 3
28 µg/L 3
Daily
Grab
E
Temperature ° C
Daily
Grab
E
Fecal Coliform (geometric
mean)
200/100 mL
400/100 mL
•
Daily
Grab
E
pH
Shall not fall below 6.0 nor exceed 9.0
standard units.
Daily
Grab
E
Dissolved Oxygen
Daily avg. shall not fall below 5.0 mg/L
Daily
Grab
E
Total Phosphorus
2.0 mg/L (Quarterly average) 4
Weekly
Composite
E
TKN (mg/L)
Monitor and Report
Weekly
Composite
E
NO3-N + NO2-N (mg/L)
Monitor and Report
Weekly
Composite
E
Total Nitrogen, TN (mg/L) 5
Monitor and Report
Weekly
Composite
E
TN Load 6,7
Monitor and Report (lb./mo.)
37, l 001b/yr
Monthly
Annually
Annually
Calculated
E
Cyanide
22 µg/L8
22 µg/L8
Weekly
Grab
E
Conductivity, µmho/cm
2/Month
Grab
E
Total Copper, µg/L
2/Month
Composite
E
Total Zinc, µg/L
2/Month
Composite
E
Chronic Toxicity 9
Quarterly.
Composite
E
Temperature, °C
Variable 10
Grab
U, D
Dissolved Oxygen, mg/L
Variable 10
Grab
U, D
Conductivity, µmho/cm
Variable 10
Grab
U, D
PPA Scan
Annual 11
Footnotes:

Permit NC0032077
1. Sample Locations: I — Influent; E — Effluent; U — Upstream at NCSR 1800; D- Downstream at Jolly's Old
Field Landing. Upstream and downstream samples shall be grab samples.
2. Monthly average effluent BOD5 and total suspended solids (TSS) concentrations shall not exceed 15% of
their respective influent value (i.e., 85% removal is required).
3. Total Residual Chlorine shall be monitored only if the facility uses chlorine or a chlorine derivative for
disinfection. The Division received EPA approval to allow a 50 µg/L TRC compliance level. You must
report actual results on DMR submittals, but for compliance purposes, all TRC valued below 50 µg/L will
be deemed compliant.
4. Quarterly average for Total Phosphorus shall constitute the average of composite samples collected
weekly during each calendar quarter (January -March, April -June, July -September, October -December).
5. For a given wastewater sample, TN = TKN + NO3 N+NO2 N, where TN is Total Nitrogen, TKN is Total
Kjeldahl Nitrogen, and NO3 N+NOZ N are nitrate and nitrite nitrogen, respectively.
6. TN Load is the mass quantity of Total Nitrogen discharged in a given period of time. See Special
Condition A.(3.), Calculation of Total Nitrogen Loads.
7. Compliance with this limit shall be determined in accordance with Special Condition A.(4.) of this
permit, Annual Limits for Total Nitrogen.
8. Cyanide — The Division shall consider all cyanide values reported below 10 µg/L to be "zero" for
compliance purposes only. However, the Permittee shall record on DMRs all values reported by a North
Carolina -certified laboratory (even if these values fall below 10 µg/L), and the Permittee shall use these
reported values to calculate averages, if any, as required by the permit.
9. Chronic Toxicity (Ceriodaphnia) P/F @ 13%, January, April, July, and October [see A.(6.)].
10. Variable Stream Sampling — Stream samples shall be taken three times per week during the months of
June, July, August and September, and weekly during the remainder of the year. As a participant in the
Lower Neuse Basin Association, Inc. (LNBA), the subject facility is not responsible to conduct instream
monitoring. Should the Permittee terminate its membership in the Association for any reason, the
Permittee shall immediately notify the Division in writing and immediately assume stream sampling
requirements as described herein.
11. PPA Scan (Effluent Pollutant Scan) — see Special Condition A.(7.)
FINAL DISCHARGE SHALL CONTAIN NO FLOATING SOLIDS OR FOAM VISIBLE IN OTHER THAN TRACE AMOUNTS.

Permit NC0032077
A. (3.) CALCULATION OF TOTAL NITROGEN LOADS
a. The Permittee shall calculate the monthly and annual Total Nitrogen (TN) loads as follows:
i. Monthly TN Load (lb./mo.) = TN x TMF x 8.34
where:
TN
=
,
the average total nitrogen concentration (mg/L) of the composite
samples collected during the month
TMF
=
the Total Monthly Flow of wastewater discharged during the month
(MG/mo.) ,
8.34
=
conversion factor, from (mg/L x MG) to pounds
ii. Annual Mass Loading (Ib. /yr.) = Sum of the 12 Monthly TN Loads for the calendar
year
b. The Permittee shall report monthly Total Nitrogen results (mg/L and lb./mo.) in the discharge
monitoring report for that month and shall report each year's annual results (lb./yr.) in the December
report for that year.
A. (4.) ANNUAL LINIITS FOR TOTAL NITROGEN
a. Total Nitrogen (TN) allocations and TN Load limits for NPDES dischargers in the Neuse River basin are
annual limits and are applied for the calendar year.
b. For any given calendar year, the Permittee shall be in compliance with the annual TN Load limit in this
Permit if:
i. the Permittee's annual TN Load is less than or equal to said limit, or
ii. the Permittee is a Co-Permittee Member of a compliance association.
c. The TN Load limit in this Permit (if any) may be modified as the result of allowable changes in the
Permittee's TN allocation. .
i. Allowable changes include those resulting from purchase of TN allocation from the Wetlands
Restoration Fund; purchase, sale, trade, or lease of allocation between the Permittee and other
dischargers; regionalization; and other transactions approved by the Division.
ii. The Permittee may request a modification of the TN Load limit in this Permit to reflect allowable
changes in its TN allocation. Upon receipt of timely and proper application, the Division will modify
the permit as appropriate and in accordance with state and federal program requirements.
iii. Changes in TN limits become effective on January 1 of the year following permit modification. The
Division must receive application no later than August 31 for changes proposed for the following
calendar year.
iv. Application shall be sent to:
NCDWQ / NPDES Programs
Attn: Neuse River Basin Coordinator
1617 Mail Service Center
Raleigh, NC 27699-1617

Permit NC0032077
d. If the Permittee is a member and co-permittee of an approved compliance association, its TN discharge
during that year is governed by that association's group NPDES permit and the TN limits therein.
i. The Permittee shall be considered a Co-Permittee Member for any given calendar year in which it is
identified as such in Appendix A of the association's group NPDES permit.
ii. Association roster(s) and members' TN allocations will be updated annually and in accordance with
state and federal program requirements.
iii. If the Permittee intends to join or leave a compliance association, the Division must be notified of the
proposed action in accordance with the procedures defined in the association's NPDES permit.
(1) Upon receipt of timely and proper notification, the Division will modify the permit as appropriate
and in accordance with state and federal program requirements.
(2) Membership changes in a compliance association become effective on January 1 of the year
following modification of the association's permit.
e. The TN monitoring and reporting requirements in this Permit remain in effect until expiration of this Permit
and are not affected by the Permittee's membership in a compliance association.
A. (5.) TOTAL NITROGEN ALLOCATIONS
a. The following table lists the Total Nitrogen (TN) allocation(s) assigned to, acquired by, or transferred to the
Permittee in accordance with the Neuse River nutrient management rule (T15A NCAC 02B .0234) and the
status of each as of permit issuance. For compliance purposes, this table does not supersede any TN limit(s)
established elsewhere in this permit or in the NPDES permit of a compliance association of which the
Permittee is a Co-Permittee Member.
ALLOCATION
TYPE `• "
" ' SOURCE "
'
DATE
'LOCATION AMOUNT- 1
'
STATUS . .
i� '
> Estuary
(lb/yr)
t
Discharge
(1bIyr)
Base
Assigned by Rule
(T15A NCAC 02B .0234)
12/7/97;
4/1/03
22,470
32,100
Active
Supplemental
Purchased from UNIFI,
LLC, NC0003760
3/17/10
3 500
5,000
Active
(eff. 1/1/11)
TOTAL (through 12/31/10)
22,470
32,100
Active
TOTAL (effective 1/1/11)
25,970
37,100
Active
Footnote:
(1) Transport Factor =70%
b. Any addition, deletion, or modification of the listed allocation(s) (other than to correct typographical errors)
or any change in status of any of the listed allocations shall be considered a major modification of this permit
and shall be subject to the public review process afforded such modifications under state and federal rules.

Permit NC0032077
A. (6.) CHRONIC TOXICITY PERMIT LIMIT (QUARTERLY)
For all discharges the effluent shall at no time exhibit observable inhibition of reproduction or significant
mortality to Ceriodaphnia dubia at an effluent concentration of 11.0 % for flow of 2.85 MGD, and at 13% for
flows of 3.5 MGD.
The permit holder shall perform at a minimum, quarterly monitoring using test procedures outlined in the "North
Carolina Ceriodaphnia Chronic Effluent Bioassay Procedure," Revised February 1998, or subsequent versions or
"North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or
subsequent versions. The tests will be performed during the months of January, April, July, and November.
Effluent sampling for this testing shall be performed at the NPDES permitted final effluent discharge below all
treatment processes.
If the test procedure performed as the first test of any single quarter results in a failure or ChV below the permit
limit, then multiple -concentration testing shall be performed at a minimum, in each of the two following months
as described in "North Carolina Phase II Chronic Whole Effluent Toxicity Test Procedure" (Revised February
1998) or subsequent versions.
The chronic value for multiple concentration tests will be determined using the geometric mean of the highest
concentration having no detectable impairment of reproduction or survival and the lowest concentration that does
have a detectable impairment of reproduction or survival. The definition of "detectable impairment," collection
methods, exposure regimes, and further statistical methods are specified in the "North Carolina Phase II Chronic
Whole Effluent Toxicity Test Procedure" (Revised -February 1998) or subsequent versions.
All toxicity testing results required as part of this permit condition will be entered on the Effluent Discharge
Monitoring Form (MR-1) for the months in which tests were performed, using the parameter code TGP3B for the
pass/fail results and THP3B for the Chronic Value. Additionally, DWQ Form AT-3 (original) is to be sent to the
following address:
Attention: North Carolina Division of Water Quality
Environmental Sciences Section
1621 Mail Service Center
Raleigh, North Carolina 27699-1621
Completed Aquatic Toxicity Test Forms shall be filed with the Environmental Sciences Section no later than 30
days after the end of the reporting period for which the report is made.
Test data shall be complete, accurate, include all supporting chemical/physical measurements and all
concentration/response data, and be certified by laboratory supervisor and ORC or approved designate signature.
Total residual chlorine of the effluent toxicity sample must be measured and reported if chlorine is employed for
disinfection of the waste stream.
Should there be no discharge of flow from the facility during a month in which toxicity monitoring is required,
the Permittee will complete the information located at the top of the aquatic toxicity (AT) test form indicating the
facility name, permit number, pipe number, county, and the month/year of the report with the notation of "No
Flow" in the comment area of the form. The report shall be submitted to the Environmental Sciences Section at
the address cited above.
Should the Permittee fail to monitor during a month in which toxicity monitoring is required, monitoring will be
required during the following month.
Should any test data from this monitoring requirement or tests performed by the North Carolina Division of Water
Quality indicate potential impacts to the receiving stream, this permit may be re -opened and modified to include
alternate monitoring requirements or limits.
NOTE: Failure to achieve test conditions as specified in the cited document, such as minimum control organism
survival, minimum control organism reproduction, and appropriate environmental controls, shall constitute an
invalid test and will require immediate follow-up testing to be completed no later than the last day of the month
following the month of the initial monitoring.

Permit NC0032077
- A. (7.) EFFLUENT POLLUTANT SCAN (PRIORITY POLLUTANT ANALYSIS)
The Permittee shall perform an annual effluent pollutant scan for all parameters listed in the attached table (in
accordance with 40 CFR Part 136). Samples shall represent seasonal variations. Unless otherwise indicated
here, metals shall be analyzed as "total recoverable."
Ammonia (as N)
Trans-1,2-dichloroethylene
Bis (2-chloroethyl) ether
Chlorine (total residual, TRC)
1,1-dichloroethylene
Bis (2-chloroisopropyl) ether
Dissolved oxygen
1,2-dichloropropane
Bis (2-ethylhexyl) phthalate
Nitrate/Nitrite
1,3-dichloropropylene
4-bromophenyl phenyl ether
Kjeldahl nitrogen
Ethylbenzene
Butyl benzyl phthalate
Oil and grease
Methyl bromide
2-chloronaphthalene
Phosphorus
Methyl chloride
4-chlorophenyl phenyl ether
Total dissolved solids
Methylene chloride
Chrysene
Hardness
1,1,2,2-tetrachloroethane
Di-n-butyl phthalate
Antimony
Tetrachloroethylene
Di-n-octyl phthalate
Arsenic
Toluene
Dibenzo(a,h)anthracene
Beryllium
1,1,1-trichloroethane
1,2-dichlorobenzene
Cadmium
1,1,2-trichloroethane
1,3-dichlorobenzene
Chromium
Trichloroethylene
1,4-dichlorobenzene
Copper
Vinyl chloride
3,3-dichlorobenzidine
Lead
Acid -extractable compounds:
Diethyl phthalate
Mercury (Method 1631E)
P-chloro-m-cresol
Dimethyl phthalate
Nickel
2-chlorophenol
2,4-dinitrotoluene
Selenium
2,4-dichlorophenol
2,6-dinitrotoluene
Silver
2,4-dimethylphenol
1,2-diphenylhydrazine
Thallium
4,6-dinitro-o-cresol
Fluoranthene
Zinc
2,4-dinitrophenol
Fluorine
Cyanide
2-nitrophenol
Hexachlorobenzene
Total phenolic compounds
4-nitrophenol
Hexachlorobutadiene
Volatile organic compounds:
Pentachlorophenol
Hexachlorocyclo-pentadiene
Acrolein
Phenol
Hexachloroethane
Acrylonitrile
2,4,6-trichlorophenol
Indeno(1,2,3-cd)pyrene
Benzene
Base -neutral compounds:
Isophorone
Bromoform
Acenaphthene
Naphthalene
Carbon tetrachloride
Acenaphthylene
Nitrobenzene
Chlorobenzene
Anthracene
N-nitrosodi-n-propylamine
Chlorodibromomethane
Benzidine
N-nitrosodimethylamine
Chloroethane
Benzo(a)anthracene
N-nitrosodiphenylamine
2-chloroethylvinyl ether
Benzo(a)pyrene
Phenanthrene
Chloroform
3,4 benzofluoranthene
Pyrene
Dichlorobromomethane
Benzo(ghi)perylene
1,2,4-trichlorobenzene
1,1-dichloroethane
Benzo(k)fluoranthene
1,2-dichloroethane
Bis (2-chloroethoxy) methane
The Permittee shall report test results to the Division in DWQ Form- A MR-PPA1 or in a form approved by the
Director within 90 days of sampling. The report shall be submitted to the following address: Division of Water
Quality, Water Quality Section, Central Files, 1617 Mail Service Center, Raleigh, North Carolina 27699-1617.
Submittal of a priority pollutant analysis with NPDES permit renewal applications is required.

DENR / DWQ / NPDES Unit
FACT SHEET
Contentnea MSD WWTP
NPDES Permit NC0032077
Pitt County
Facility Information
Applicant:
Contentnea Metropolitan Sewerage District
Applicant Address:
P.O. Box 477; Grifton, North Carolina 28530
Facility Name:
Contentnea MSD WWTP
Facility Address:
900 Wiley Gaskins Road; Grifton, North Carolina 28530
Permitted Flow
2.85 MGD/ increasing to 3.5 MGD
Type of Waste:
Domestic (98%) and industrial (2%) with pretreatment program;
Facility/Permit Status:
Class IV /Active; Modification
County:
Pitt County
Miscellaneous
Receiving Stream:
Contentnea Creek
Regional Office:
Washington
Stream Classification:
C-Sw-NSW
State Grid / USGS
Quad:
F29SW/ Grifton, NC
303(d) Listed?
Not on 2010 303(d) list
Permit Writer:
Jim McKay
Subbasin:
03-04-07
Date:
January 12, 2012
Drainage Area (mi2):
1000
414111111,
Lat. 35° 21' 20" N Long. 77° 24' 58" W
Summer 7Q10 (cfs)
36.0
Winter 7Q10 (cfs):
72.0
30Q2 (cfs)
120.0
Average Flow (cfs):
1090
IWC(%):
11%@2.85MGD
13% @ 3.5 MGD
PROPOSED PERMIT ACTION
Contentnea MSD has requested modification of NPDES Permit NC0032077 to expand capacity to 3.5 MGD from
their present 2.85 MGD. They were given Speculative Effluent Limits on March 5, 2010 for expansion to 3.5, 4.0
and 5.0 MGD. The expansion/ Modification consists of:
• A new 5 stage biological nutrient removal (BNR) process with anaerobic, pre -anoxic, aeration, post -
anoxic and post -aeration zones,
• Two new circular clarifiers
• New RAS/ WAS pump station
• New Biosolids dewatering facility
• SCADA improvements
• The two existing aeration basins will be converted for use as flow equalization facilities
• The existing second stage aeration tanks, first stage clarifiers and second stage clarifiers will be
converted for use as part of aerobic sludge stabilization and storage

BACKGROUND
The Contentnea MSD WWTP is located in the Neuse River basin and was assigned 32,100 lb/yr of Total Nitrogen
(TN) allocation (22,470 lb/yr as estuary allocation) under the Neuse River Basin Nutrient Management Strategy
rule for Wastewater Discharges (T15A NCAC 02B .0234), or "the Neuse rule."
The MSD is a member of the Neuse River Compliance Association. The Association has readily met its group
limit for nitrogen; as a result, an exceedance by the MSD would not be a violation of its individual or the
Association's group NPDES permit. However, under the group's by-laws, the MSD could still be subject to
assessments by the Association if it exceeds its individual allocation. In 2010 MSD purchased 5,000 pounds per
year of TN discharged (3,500 pounds at the estuary) from UNIFI, LLC in support of this permit expansion. The
37,100 lb/ yr. TN discharge allocation is equivalent to a TN concentration of 3.48 mg/ L at 3.5 MGD, 3.05 mg/ L
at 4.0 MGD and 2.4 mg/ L at 5.0 MGD discharge rates. Since the Division currently holds that 3.0 mg/ L TN is
the best achievable concentration, MSD must obtain additional TN allocation in order to expand up to 5.0 MGD.
The following table summarizes the allocations held by the MSD:
ALLOCATION
TYPE
SOURCE
A
w10.,LOCATION 'AMOUNT
,STATUS
:
Y
Estuary
0b/311 ;
f Discharge
1lbly4)
Base
Assigned by Rule
(T15A NCAC 02B .0234)
12/7/97;
4/1/03
22,470
32,100
Active
Supplemental
Purchased from UNIFI,
LLC, NC0003760
3/17/10
3 500
5 000
Active
(eff. 1/1/11)
TOTAL (through 12/31/10)
22,470
32,100
Active
TOTAL (effective 1/1/11)
25,970
37,100
Active
The transfer did increase the MSD's TN discharge allocation to 37,100 lb/yr (25,970 lb/yr as estuary allocation).
EAA Review:
In support of the expansion plans, Dr. Shankar Mistry, Ph.D., P.E. of the Wooten Company has developed an
Environmental Report and a Preliminary Engineering Report, which includes the Engineering Altematives
Analysis (EAA). The US Department of Agriculture, through the Rural Development Center has completed a
review of the environmental aspects of this project and approved it on January 29, 2010 without a FONSI being
required. An Engineering Alternatives Analysis was prepared by The Wooten Company of Raleigh, NC. It is
contained in the Preliminary Engineering Report.
The EAA was reviewed and accepted as complete by the Complex NPDES Permitting group on Friday, August
19, 2011
303(d) Review:
There is a 15.1 mile stretch of Contentnea Creek that is impaired for biological integrity benthos on the 2010
303(d) list. That section is over 41 miles upstream of the discharge point.
DMR Review:
This is a permit modification, not renewal. No DMRs were reviewed, and no RPA was conducted.

INSTREAM DATA REVIEW
Instream Dissolved Oxygen data was reviewed for two stations. The Upstream station is an Ambient
Monitoring Station J7810000 on Contentnea Creek near SR 1800 near Griffon. It is approximately 2.2
miles upstream of Contentnea MSD's outfall 001. The Downstream station is a Neuse Coalition
monitoring station J7850000, near SR 1470 bridge on the Neuse river, approximately 7.76 miles
downstream of outfall 001. The two stations are part of two different databases, so cannot be compared
directly, because data was collected on different dates and times. The upstream station has 127 data
points for dissolved oxygen. 12% of the upstream data points were below the standard of 5.0 mg/ L.
The average was 7.3 mg/ L, the maximum was 13.9 mg/ L, and the minimum value was 0.4 mg/ L. The
downstream station has 250 data points, averaging 7.1 mg/ L, maximum of 13.8 mg/ L and a minimum
reading of 2.4 mg/ L. 10.4% of the downstream data points were below the standard of 5.0 mg/ L. Data
indicates that the waters are compatible with Swamp classification due to low dissolved oxygen, and that
the Contentnea MSD WWTP does not cause any degradation of water quality through its' discharge of
treated wastewater.
DESCRIPTION OF PERMIT CHANGES
The draft permit includes the following changes:
• Staged Limits. Condition A.(1.), Effluent Limitations And Monitoring Requirements, is retained for the 2.85
MGD case. A new Condition A.(2.) was created for the 3.5 MGD case. The limit for BOD is set at 15.0 mg/
L based on NC's Swamp Water Permitting Strategy. The ammonia nitrogen limit of 6.0 mg/ L is based on
toxicity calculations for the 3.5 MGD case. Both limits are more stringent than limits of 18.0 mg/ L BOD and
12.0 mg/ L ammonia -nitrogen, based on holding loading constant for these oxygen consuming parameters.
The other remaining Conditions were renumbered accordingly.
PUBLIC COMMENTS
FINAL ACTION
The Division plans to issue the permit with the following dates:
Permit Mod. Public Notice: August 31, 2011
Permit Mod. Effective: March 1, 2012
Permit Expires: May 31, 2013 (current expiration date)
STATE CONTACT
If you have any questions on any of the above information or on the attached permit, please contact Jim
McKay at [phone].
NAME: f7"' f /4P DATE: I " / 7- O ( 2
NPDES SUPERVISOR
NAME: DATE:

REGIONAL OFFICE COMMENT
NAME: DATE:

Mckay, James
From: Pamala Myers [[e-mail]]
Sent: Thursday, January 12, 2012 3:31 PM
To: Mckay, James
Subject: Re: Contentnea MSD Permit Modification limit changes
Attachments: 32077.pdf
Jim,
This looks fine.
Thank you for sending the revised draft.
Just let me know if there happen to be any further changes.
.Pamala Myers
404.562.9421
myers.pamala0epa.gov
Environmental Engineer and Technical Advisor I Pollution Control and Implementation Branch
Water Protection Division I Municipal and Industrial NPDES Section U.S. EPA, Region 4 161
Forsyth St. SW I Atlanta, GA 30303
From: "Mckay, James" <[e-mail]>
To: Pamala Myers/R4/USEPA/US@EPA
Date: 01/12/2012 01:56 PM
Subject: Contentnea MSD Permit Modification limit changes
Pamela:
Attached is a copy of Contentnea MSD permit mod. It is ready to be issued.
As I discussed with you today, we have changed the BOD and ammonia -nitrogen limits after
negotiations with the permittee and engineer. The new limits are less stringent than those
in the draft, but are more stringent than they would have been if the old load was frozen.
Please contact me if you have any questions or comments.
The transmittal letter says you are to get the permit, factsheet and RPA, but no RPA was done
for this permit modification.
Jim McKay, Environmental Engineer
NC DENR / Division of Water Quality / Surface Water Protection Section Point Source Branch
1617 Mail Service Center, Raleigh, NC 27699-1617
919/807-6404 (work); 919/807-6495 (fax)
**Please note, my email address has changed to James.McKav(alncdenr.gov
E-mail correspondence to and from this address may be subject to the North Carolina Public
Records law and may be disclosed to third parties.
(See attached file: 32077.pdf)
1

Mckay, James
From: Shankar Mistry [[e-mail]]
Sent: Wednesday, January 04, 2012 5:17 PM
To: Mckay, James
Cc: 'Chuck Smithwick'; Charles Davis
Subject: RE: Contentnea Permit Limits
January 4, 2012
Jim:
Wish you Happy New Year with good health and prosperous life. I have reviewed your documents regarding setting of the
BOD5 and Ammonia limits for the CMSD Phase 2 WWTP expansion to 3.5 MGD capacity.
As stated in Mr. Smithwick's October 5, 2011 letter that the CMSD has already installed the effluent outfall at significant
cost to comply with the existing NPDES Permit conditions included in item 3 of the Supplement to Permit Cover Sheet and
Section A. (1) b., given in the existing NPDES Permit. The intent of installation of the effluent outfall was to comply
with the existing NPDES Permit conditions and get better effluent limitations included in the existing NPDES
Permit Section A. (1) b.
In order to maintain consistency with the current effluent limits and associated allocated waste loads for BOD5 and NH3-N
at 2.85 MGD, included in the current NPDES Permit, the requested monthly average effluent limits (BOD5 = 16 mg/L and
NH3-N = 12 mg/L) and weekly average limits (BOD5 = 24 mg/L and NH3 = 36 mg/L were reasonable with the exception
NCDWQ NH3-N weekly average effluent limit cap of 35 mg/L. However, considering the IWC Calculations and Swamp
Water Policy documents provided by you, it is requested that the modified NPDES Permit be revised to include the
following effluent limitations for BOD5 and NH3-N at the permitted flow of 3.5 MGD:
Parameter
Effluent Limitations
Monitoring Requirements
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample Type
Sample
Location
Flow, MGD
3.5
_
Continuous
Recording
I or E
BOD5, mg/L
15.0 ! 0 9)
22.5
Daily
_
Composite
I, E
.
NH3-N, mg/L
6.0 0 i)
18.0
Daily
Composite
E
Old 104 CD( )
Please note that the Contentnea Creek has summer 7Q10 flow of 36 cfs and Winter 7Q10 flow of 72 cfs which are
significant to classify as Swamp Waters. Considering the assimilative capacity of the Contentnea Creek at the currently
permitted BOD5 and NH3-N waste loads of 22.0 mg/L and 15.0 mg/L at 2.85 MGD, the revised requested effluent limits for
BOD5 and NH3-N at the permitted flow of 3.5 MGD, given in the above table are very reasonable.
On behalf of CMSD we will appreciate your help to include the requested revised effluent limits for BOD5 and NH3-N in the
modified NPDES Permit for CMSD Phase 2 WWTP expansion to 3.5 MGD.
Sincerely,
Shankar R. Mistry, Ph.D., P.E.
Senior Process Engineer
The Wooten Company
120 N, Boylan Avenue
Raleigh, North Carolina 27603
Phone: [phone]; Fax: [phone]
e-mail: smistry(athewootencompanv.com.
Original Message
From: Mckay, James jmailto:james.mckayancdenr.govl
Sent: Thursday, December 01, 2011 3:57 PM
To: Shankar Mistry
Subject: Contentnea Permit Limits
1

Mckay, James
From: Thorpe, Roger
Sent: Friday, October 14, 2011 9:52 AM
To: Mckay, James
Subject: RE: Draft review, NPDES NC0032077, Contentnea MSD permit modification
Jim
Kristin Jarman and I have reviewed the draft CMSD permit and do not have any problems with it. We recommend
issuance of the permit. Thanks
Roger
From: Mckay, James
Sent: Tuesday, September 27, 2011 8:54 AM
To: Hodge, Al; Thorpe, Roger; Jarman, Kristin
Cc: Reid, Steve; Atkins, Jennie; Meadows, Susan
Subject: Draft review, NPDES NC0032077, Contentnea MSD permit modification
Attached is a PDF file of the Contentnea MSD permit modification. Please review and send any questions or comments
to me.
I apologize for being so late in sending it out — I have been swamped with getting permits out for draft review, now I am
swamped with permits to be issued.
Jim McKay, Environmental Engineer
NC DENR / Division of Water Quality / Surface Water Protection Section
Point Source Branch
1617 Mail Service Center, Raleigh, NC 27699-1617
919/807-6404 (work); 919/807-6495 (fax)
**Please note, my email address has changed to [e-mail]
E-mail correspondence to and from this address may be subject to the North Carolina Public Records law and may be
disclosed to third parties.
1

C`'ontentizea maiopolitait gee/image -01itzict
CMSD
POST OFFICE BOX 477
GRIFTON, NORTH CAROLINA 28530
CHARLES M. SMITHWICK, JR.
DISTRICT MANAGER
October 5, 2011
Mr. Jim McKay
Complex NPDES Program
Division of Water Quality, NCDENR
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: Draft of NPDES Permit Modification
Permit No. NC0032077
Contentnea WWTP
Pitt County
Class IV Facility
IVECEINM I)
OCT 062011
DENR-WATER QUALITY
POINT SOURCE BRANCH
Dear Mr. McKay:
Reference is made to the subject Draft of NPDES Permit Modification which was received by
our office on September 6, 2011. As suggested we have carefully reviewed the draft
modification permit and noticed the following changes are made in the effluent limitations of
BOD5 and NH3-N for the existing permitted flow rate of 2.85 MGD and the expanded flow
rate of 3.5 MGD.
Effluent LimitationsW
Effluent Limitations(2)
Effluent Limitations(3)
Parameter
Monthly
Weekly
Average
Monthly
Average
Weekly
Average
Monthly
Average
Weekly
Average
Flow, MGD
2.85
2.85
3.5
BOD5, mg/L
22.0 mg/L
33.0 mg/L
BOD5 (April 1-
October 31)
5.0 mg/L
7.5 mg/L
5.0 mg/L
7.5 mg/L
BOD5 (Nov. 1-
March 31)
10.0 mg/L
15.0 mg/L
10.0 mg/L
15.0 mg/L
NH3-N, mg/L
15.0 mg/L
35.0 mg/L
NH3-N (April
1-October 31)
1.0 mg/1
3.0 mg/L
1.0 mg/L
3.0 mg/L
NH3-N (Nov.
1-March 31)
2.0 mg/L
6.0 mg/L
2.0 mg/L
6.0 mg/L

Notes: (1) Effluent Limitations, included in the existing NPDES Permit Section A. (2), which
are more stringent for discharge into receiving stream (formerly CMSD WWTP's
Effluent Canal which was classified by the Division of Water Quality as Waters
of the State and Unnamed Tributary to the Contentnea Creek) which has zero
stream flow conditions.
2) Effluent Limitations, included in the existing NPDES Permit Section A. (1) b.
with requirement for installation of outfall for discharge of effluent into mainstream
of the Contentnea Creek where more dilution is available for BOD5 and NH3-N
assimilation with better stream flow conditions. Please note that CMSD has
already installed the effluent outfall at significant cost to comply with the
existing NPDES Permit conditions included in item 3 of the Supplement to
Permit Cover Sheet and Section A. (1) b., given in the existing NPDES Permit.
3) Effluent Limitations included in the draft modification permit for increase in
monthly average daily permitted flow of 3.5 MGD.
Reviewing the monthly effluent limitations of 22.0 mg/L for BOD5 and 15 mg/L for NH3-N
included in the existing NPDES permit for the permitted discharge flow of 2.85 MGD to the
Contentnea Creek, the corresponding BOD5 and NH3-N loadings to the Contentnea Creek are
estimated to be 522.918 lbs BOD5/day and 356.535 lbs NH3-N/day, respectively. Considering
these effluent discharge loadings are established using the assimilative capacity of the
Contentnea Creek with better stream flow conditions then keeping the same waste loads
allocations for BOD5 and NH3-N, the monthly average effluent limitations for the BOD5 and
NH3-N at the permitted flow of 3.5 MGD would be 17.91 mg/L and 12.214 mg/L. The draft
modified NPDES Permit includes summer and winter effluent limits of 5.0 mg/L and 10 mg/L
for BOD5, respectively, and 1.0 mg/L and 2.0 mg/L for NH3-N, respectively, for the permitted
discharge flow of 3.5 MGD to the Contentnea Creek which are same as for discharge of
existing 2.85 MGD permitted flow to the Unnamed Tributary with zero stream flow
conditions.
As mentioned above in the note (3), the CMSD has already installed the effluent outfall at
significant cost to comply with the existing NPDES Permit conditions included in item 3 of the
Supplement to Permit Cover Sheet and Section A. (1) b., given in the existing NPDES Permit.
The intent of installation of the effluent outfall is to comply with the existing NPDES Permit
conditions and get better effluent limitations included in the existing NPDES Permit Section
A. (1) b. The effluent limitation for BOD5 and NH3-N, included in the draft modified NPDES
Permit, defeat the purpose of installation of the effluent outfall by CMSD at significant cost
and does not take into account the assimilative capacity of the currently permitted BOD5 and
NH3-N loadings to the Contentnea Creek with better stream flow conditions.

Accordingly, by copy of this letter, it is requested that the modified NPDES Permit be revised
to include the following effluent limitations for BOD5 and NH3-N at permitted flow of 3.5
MGD.
Parameter
Effluent Limitations
Monitoring Requirements
Monthly
Average
Weekly
Average
Measurement
Frequency
Sample Type
Sample
Location
Flow, MGD
3.5
BOD5
16 mg/L
24 mg/L
Daily
Composite
I, E
NH3-N
12 mg/L
36 mg/L
Daily
Composite
E.
Your assistance in this matter will be greatly appreciated. Should you have any questions
concerning this matter, please call me at 252-524-5584 or Shankar R. Mistry at 919-828-0531.
Sincerely
ea,
Charles M. Smithwick, Jr.
District Manager, CMSD
C: Mr. Al Hodge, Washington Regional Office/Surface Water Protection Section
Mr. Shankar Mistry, The Wooten Co.
Mr. Charlie Davis, The Wooten Co.
Ms. Renee Smith, CMSD (ORC)

Jac�� rFs.
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
�� �� yW REGION 4
o ���% Q ATLANTA FEDERAL CENTER
Zt.�1r14. PR`ol -c'`O2 ATLANTA, GEORGIA 30303-8960
SEP 1 9 2011
Mr. Jeff Poupart
Supervisor, NPDES Unit
North Carolina Department of Environment
and Natural Resources
Division of Water Quality
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
Subject: No Comment for draft National Pollutant Discharge Elimination System Permit review for
Contentnea Metropolitan Sewerage District, Permit No. NC0032077
Dear Mr. Poupart:
In accordance with the EPA/NC Memorandum of Agreement, we have completed our review of the
draft National Pollutant Discharge Elimination System (NPDES) permit referenced above which was
received on September 6, 2011, and have no comments to the proposed conditions. The EPA requests
that we be afforded an additional review opportunity only if significant changes are made to the draft
permit prior to issuance, or if significant objections to the draft permit are received. Otherwise, please
send Region 4 one copy of the final permit when issued with its signed cover letter. If you have any
questions, please call me at [phone] or send an email to [e-mail].
Pamala Myers
Municipal and Industrial NPDES Section
Pollution Control and Implementation Branch
Water Protection Division
ro?
---
SEP 21 2011 DENR-WATER QUALITY
POINT SOURCE f RANG U
Internet Address (URL) • http://www.epa.gov
Recycled/Recyclable • Printed with Vegetable Oil Based Inks on Recycled Paper (Minimum 30% Postconsumer)

The Daily Reflector
P.O. Box 1967, Greenville, NC 27835-1967 [phone]
NCDENR
1617 MAIL SERVICE CENTER
RALEIGH, NC 27699-1617
Legal Affidavit located below
PUBLISHER'S AFFIDAVIT
Copy Line:
Lines:
Total Price:
Notice of Intent to Issue Permit
37
$74.65
Pay this amount due in 10 days
Account: 146891 AD ID: 7794433
NORTH CAROLINA
PITT COUNTY:
Elyse Burchard 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 hereto attached, entitled Notice of Intent to Issue
Permit was published in said The Daily Reflector on the following dates:
Sunday, September 4, 2011 Page: D2
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.
Affirmed and subscribed before me this 10 day
of September 2011
(NotaryPublic Signature
)
\.\ \\\ -.))c)o
(Notary Public Printed Name)
My commission expires
AD ID: 7794433
Public Notice
North Carolina Environmental
Management Commission,NPDES Unit
1617 Mail Service Center
Raleigh. NC 27699-1617
Notice of Intent to Issue a NPDES
Wastewater Permit
The North Carolina Environmental
Management Commission proposes to
issue a NPDES wastewater discharge
permit to the personls) listed below.
Written comments regarding the pro-
posed permit will be accepted until 30
days after the publish date of this
notice. The Director of the NC Division
of Water Quality (DWQ) may hold a
public hearing should there be a signifi-
cant degree of public interest. Please
mail comments and/or information
requests to DWQ at the above address.
Interested persons may visit the DWQ at
512 N. Salisbury Street, Raleigh, NC to
review information on file. Additional
information on NPDES permits and this
notice may be found on our website:
http://portal.mdenr.org/web/wq/swpips/
npdeskalendar, or by calling (919)
807-6304.
Contentnea Metropolitan Sewerage
District has applied for modification of
permit NC0032077 for its WWTP in Pitt
County to increase flow to 3.5 MGD.
This permitted facility discharges to
Contentnea Creek in the Neuse River
Basin.
September 4, 2011

SWAMP WATERS POLICY
Most wastewater discharges to swamp waters are small and remote, and there is a limited ability
to model swamps or make effective predictions regarding the potential impact of wastewater
discharges to such systems.
Based on a study of swamp dischargers conducted by Modeling/TMDL and ESB in 1996, the
following NPDES permitting strategy was developed , and which became effective in February
1998:
The Division will permit new and expanding dischargers to swamp waters (SW) on a
case by case basis, with individual permit limits as deemed appropriate for the particular
location. Due to the low DO regimes in swamp waters during warm weather, the
Division should continue to require minimum summer effluent limits of BOD5 =15 mg/1
and NH3-N = 4 mg/1 in order to avoid further DO depletion in such systems during
critical periods.
SWAMP POLICY
May 13, 1999
Page 1 of 1

NC 2010 Integrated Report
All 13,123 Waters in NC are in Category 5-303(d) List for Mercury due to statewide fish consumption advice for several fish species
AU_Number AU_Name AU_Description LengthArea AU_Units Classification
Category Parameter Reason for Rating Use Category Collection Year 303(dlyear
Neuse River Basin
Nahunta Swamp Watershed 0302020305
Q 27-86-14-1 The Slough From source to Nahunta Swamp 8.6 FW Miles C;Sw,NSW
1 Ecological/biological Integrity Benthos
Good -Fair Bioclassification Aquatic Life 2001
3a Ecological/biological Integrity FishCom
Not Rated Bioclassification Aquatic Life 2005
Neuse River Basin
Q 27-86-(7)b1 Contentnea Creek
5 Ecological/biological Integrity Benthos
Contentnea Creek Watershed 0302020307
0.7 miles upstream of Toisnot Swamp to 15.1 FW Miles C;Sw,NSW
Nahunta Swamp
Fair Bioclassilication Aquatic Life
2002 2008
0 27-86-(7)b2 Contentnea Creek
Ecological/biological Integrity Benthos
From Nahunta Swamp to Neuse River
45.1 FW Miles C;Sw,NSW
Not Rated Bioclassification Aquatic Life 2000
1 Fecal Coliform (recreation) No Criteria Exceeded Recreation 2008
\.2. Water Quality Standards Aquatic Life No Criteria Exceeded
Q 27-86-15 Fort Run
3a Ecological/biological Integrity FishCom
Aquatic Life 2008
From source to Contentnea Creek 7.1 FW Miles C;Sw,NSW
Not Rated Bioclassilication Aquatic Life 2005
Q 27-86-26
Little Contentnea
Creek
5 Ecological/biological Integrity Benthos
From source to Contentnea Creek 34.9 FW Miles C;Sw,NSW
Fair Bioclassilication Aquatic Life
2005 1998
3a Ecological/biological Integrity FishCom
Not Rated Bioclassification Aquatic Life 2005
1 Fecal Coliform (recreation) No Criteria Exceeded Recreation 2008
1 Water Quality Standards Aquatic Life No Criteria Exceeded Aquatic Life 2008
Q 27-86-14 Nahunta Swamp
1 EcologicaUbiological Integrity Benthos
From source to Contentnea Creek 27.1 FW Miles C;Sw,NSW
Good -Fair Bioclassification Aquatic Life 2005
3a Ecological/biological Integrity FishCom
Not Rated Bioclassification Aquatic Life 2005
1 Fecal Coliform (recreation) No Criteria Exceeded Recreation 2008
1 Water Quality Standards Aquatic Life No Criteria Exceeded Aquatic Life 2008
C) 27-86-21 Rainbow Creek
3a Ecological/biological Integrity FishCom
From source to Contentnea Creek 8.6 FW Miles C;Sw,NSW
Not Rated Bioclassilication Aquatic Life 2005
Q 27-86-12 Watery Branch
3a Ecological/biological Integrity FishCom
From source to Contentnea Creek 5.9 FW Miles C;Sw,NSW
Not Rated Bioclassilication Aquatic Life 2005
Q 27-86-24 Wheat Swamp Creek From source to Contentnea Creek 14.0 FW Miles C;Sw,NSW
1 Ecological/biological Integrity Benthos
Moderate Bioclassification Aquatic Life 2000
NC 2010 Integrated Report 5-303(d) List EPA Approved Aug 31, 2010
10/19/2010
Page 28 of 51

Facility:
Permit:
Prepared By:
IWC Calculations
Contentnea MSD WWTP
NC0032077
Jim McKay
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
2.85
36
72
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/l)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
Upstream Bkgd (ug/I)
IWC (%)
Allowable Conc. (ug/I)
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
36
2.85
4.4175
17.0
0
10.93
156
4- Fpt6J- CK "ZRt
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/I)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100m1 DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
9.15 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals); capped at 35 mg/I
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis); capped at 35 mg/I
4. BAT for Minor Domestics: 2 mg/I (summer) and 4 mg/I (winter)
5. BAT for Major Municipals: 1 mg/I (year-round)
36
2.85
4.4175
1.0
0.22
10.93
'
1vl�►G,t'�
72
2.85
4.4175
1.8
0.22
5.78
27.6
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)
NPDES Server/Current Versions/WLA; TB 1/16/2009

Facility:
Permit:
Prepared By:
IWC Calculations
Contentnea MSD WWTP
NC0032077
Jim McKay
Enter Design Flow (MGD):
Enter s7Q10 (cfs):
Enter w7Q10 (cfs):
3.5
36
72
Total Residual Chlorine (TRC)
Daily Maximum Limit (ug/l)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (UG/L)
Upstream Bkgd (ug/I)
IWC (%)
Allowable Conc. (ug/I)
Fecal Coliform
Monthly Average Limit:
(If DF >331; Monitor)
(If DF<331; Limit)
Dilution Factor (DF)
36
3.5
5.425
17.0
0
13.10
130
Ammonia (Summer)
Monthly Average Limit (mg NH3-N/I)
s7Q10 (CFS)
DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Ammonia (Winter)
Monthly Average Limit (mg NH3-N/I)
w7Q10 (CFS)
200/100mI DESIGN FLOW (MGD)
DESIGN FLOW (CFS)
STREAM STD (MG/L)
7.64 Upstream Bkgd (mg/I)
IWC (%)
Allowable Conc. (mg/I)
Total Residual Chlorine
1. Cap Daily Max limit at 28 ug/I to protect for acute toxicity
Ammonia (as NH3-N)
1. If Allowable Conc > 35 mg/I, Monitor Only
2. Monthly Avg limit x 3 = Weekly Avg limit (Municipals); capped at 35 mg/I
3. Monthly Avg limit x 5 = Daily Max limit (Non-Munis); capped at 35 mg/I
4. BAT for Minor Domestics: 2 mg/I (summer) and 4 mg/I (winter)
5. BAT for Major Municipals: 1 mg/I (year-round)
36
3.5
5.425
1.0
0.22
13.10
6.2
72
3.5
5.425
1.8
0.22
7.01
22.8
Fecal Coliform
1. Monthly Avg limit x 2 = 400/100 ml = Weekly Avg limit (Municipals) = Daily Max limit (Non -Muni)
NPDES Server/Current Versions/WLA; TB 1/16/2009

NC0032077, Contentnea MSD Expansion EAA Review
The Contentnea Metropolitan Sewerage District (MSD) is working to increase wastewater treatment
capacity to 3.5 MGD from the present 2.85 MGD due to expected population growth in the region. It is
the regional WWTP for Ayden, Grifton and Winterville. The plant has a two -stage, two -sludge process
design that is difficult to operate properly, and the sludge handling system is inadequate.
In support of the expansion plans, Dr. Shankar Mistry, Ph.D., P.E. of the Wooten Company has
developed an Environmental Report and a Preliminary Engineering Report, which includes the
Engineering Alternatives Analysis (EAA). The US Department of Agriculture, through the Rural
Development Center has completed a review of the environmental aspects of this project and approved
it on January 29, 2010 without a FONSI being required.
This document reviews the highlights of the EAA.
1. Optimize the existing plant.
• The plant is already operating at optimum efficiency.
• The two stage, 2 sludge process is difficult to control.
• The sludge handling facilities are inadequate.
• Expansion to 3.5 MGD is required to meet expected growth.
2. Do nothing.
• The MSD is the regional WWTP for Ayden, Grifton and Winterville. There are no other POTWs
available in the region to accept the expansion flows. If this option is taken, future growth will
be forced to rely on onsite septic systems for wastewater treatment.
3. Wastewater reuse.
• The MSD currently has a reuse permit WQ0022384 for 40,630 GPD spray irrigation. There are
no identified customers for this water.
4. Regional System
• The Contentnea MSD is the local regional WWTP.
5. Alternate Wastewater Treatment Systems. There are three alternates investigated in this section.
Alternates 1 and 2 evaluate different process configurations.. Alternate 3 evaluates expanding capacity
by process alternate 2, and using non -discharge spray irrigation for the 0.65 MGD flow increase.

Alternate 1. Upgrade and expand the existing WWTP to 3.5 MGD.
• New biological nutrient removal (BNR)
• Provide adequate sludge handling facilities by modifying the first stage aeration tanks, first stage
clarifiers and second stage aeration tanks to provide total aeration tank design volume of 3.43
MG. Modify the system to make it a single stage activated sludge system.
• Two new secondary clarifiers.
• New sludge recirculation pumps, two new waste sludge pumps and two duplex scum pumps.
• New internal recycle pump station
• Expand the existing aerobic sludge stabilization/ storage facilities by providing one additional
450,000 gallon aerobic sludge stabilization/ storage tank with necessary auxiliary facilities.
• New belt filter press system with housing and auxiliary facilities.
• Purchase 3,500 Ib TN/ year allocation at the estuary from Unify Kinston.
> Pros: Utilizes the existing facilities with necessary improvements for upgrade and expansion
needs.
> Cons: Construction will take some units out of service and will pose potential problems of
wastewater overflows and compliance with effluent limitations.
Alternate2. Upgrade and expand the existing WWTP to 3.5 MGD.
• New oxidation ditch BNR.
• New dual two pass anaerobic selector tanks for biological phosphorus removal.
• New sludge recirculation pumps, two new waste sludge pumps and two duplex scum pumps.
• Use existing first stage aeration tanks, first stage clarifiers and second stage aeration tanks as
part of revised aerobic sludge stabilization/ storage facilities for adequate sludge management.
• New belt filter press system with housing and auxiliary facilities.
• Purchase 3,500 Ib TN/ year allocation at the estuary from Unify Kinston.
> Pros: Keeps the existing equipment in service until the new BNR system is installed, then
converts to new sludge handling system, and avoids potential problems pointed out in Alternate
1 above.
> Cons: None known.
Alternate3. Upgrade and expand the existing WWTP to 3.5 MGD, dispose of increased discharge (0.65
MGD) by non -discharge spray irrigation.
• New oxidation ditch BNR system like Alternate 2 above.
• New transport system with effluent pump station and approximately 13,000 LF of force main.
• New 3.25 million gallon effluent storage tank at the land application site.
• New spray irrigation pump station and spray irrigation system..
• Approximately 415 acres of land for the irrigation fields and buffers.
• No need to purchase 3,500 Ib TN/ year allocation at the estuary from Unify Kinston.

> Pros: Keeps the existing discharge to Contentnea Creek, with the increase being land applied.
No need to purchase additional TN allocation for $1,400,000.00.
> Cons: Acquisition of 415 acres will involve more than one landowner, and will delay
implementation of the project. Construction costs are significantly higher for this option. There
will be several stream and wetland crossings for the effluent transport piping, and will have
direct impacts on streams and wetlands.
Net Present Worth Analysis of Alternatives
ECONOMIC PARAMETERS
ALTERNATIVES
Alt. No. 1
Alt. No. 2
Alt. No. 3
1. Capital Cost of the Project
a. Construction Cost
$10,666,000
$10,615,000
$23,595,000
b. Non Construction Cost
$3,765,885
$2,162,000
$4,953,167
Total Project Cost
$14,431,885
$14,372,348
$28,548,167
2. Annual 0 & M Cost
$1,400,500
$1,370,500
$1,503,000
3. Salvage Value
$3,418,735
$3,402,300
$9,998,660
4. Present Worth of Annual 0 & M Cost
$21,220,000
$20,765,500
$22,773,000
5. Present Worth of Salvage Value
$1,967,824
$1,958,363
$5,755,228
6. Total Present Worth Cost
$33,684,061
$33,179,485
$45,565,939
Alternate No. 2 has the lowest capital cost and the lowest operating cost, and is the most cost-effective
case. Alternate 2 is selected for implementation by the CMSD.

•
.
anient. Citeitopoaw QYeuvetaye Z1itUCt
CMSD
POST OFFICE BOX 477
GRIFTON, NORTH CAROLINA 28530
CHARLES M. SMITHWICK, JR.
DISTRICT MANAGER
June 29, 2011
Ms. Dina Sprinkle
Surface Water Protection Section - NPDES
Division of Water Quality
1617 Mail Service Center
Raleigh, NC 27699-1617
Re: Capacity Modification Request
Phase 2 WWTP Improvements
Contentnea Metropolitan Sewerage District
NPDES No. NC0032077
Pitt County, North Carolina
Dear Ms. Sprinkle:
The Contentnea Metropolitan Sewerage District (CMSD) located in Grifton, North Carolina currently
operates under NPDES Permit No. NC0032077 which became effective on March 1, 2010 and is set to
expire on May 31, 2013. As stated in our November 1, 2010 letter to your office, CMSD met the permit
condition requiring construction of an effluent outfall replacing the existing effluent channel on or before
November 1, 2010 through issuance of the Engineer's Certification to NCDWQ dated October 29, 2010.
Construction of the Phase 1 A Wastewater Treatment Plant Improvements Project (described below) was
completed on November 18, 2010. Following completion of the Phase 1 A improvements, CMSD elected
to proceed with the Phase 2 Wastewater Treatment Plant Improvements Project which involves expansion
of the treatment capacity from 2.85 mgd (currently permitted) to 3.5 mgd. As a result, we respectfully
request modification of NPDES Permit NC0032077 to increase the permitted wastewater discharge
capacity to 3.5 mgd.
Enclosed, please find one (1) original and two (2) copies of the application package requesting
modification of the NPDES Permit for the Contentnea Metropolitan Sewerage District (CMSD)
Wastewater Treatment Plant. Each application package contains the following:
1. EPA NPDES Form 2A
2. Major Modification Fee of $1,030
3. Topographic Site Map
4. Process Flow Schematic
5. Sludge Management Plan
6. USDA-RD Preliminary Engineering Report (PER) Approval Letter
7. USDA-RD Environmental Report (ER) Approval Letter
The Phase lA Wastewater Treatment Plant Improvements Project included the following major work
items: new preliminary treatment facility with mechanical bar screen and grit removal system, new filter
lift pump station, new dentrification filters, new UV disinfection system, new post aeration basin, and a
new 36-inch outfall line to Contentnea Creek. The project was constructed under two (2) separate

contracts with different construction completion dates and therefore two (2) Partial Engineer's
Certifications were submitted to NCDWQ. A partial certification for the construction of the new outfall
line (i.e. Contract 2) was issued on August 5, 2010. The partial certification for the remaining plant
improvements (i.e. Contract 1) was issued to NCDWQ on October 29, 2010 as stated above. Copies of the
Engineer's Certifications were attached with the 2010 correspondence to NCDWQ.
The Phase 2 Wastewater Treatment Plant Improvements Project includes the following major work items:
5-stage Biological Nutrient Removal (BNR) activated sludge process complete with anaerobic, pre -
anoxic, aeration, post anoxic, and post aeration zones; two circular clarifiers; RAS/WAS pump station;
biosolids dewatering facility, and SCADA system improvements. Financing of the Phase 2 project is
provided through USDA -Rural Development. As a result, a Preliminary Engineering Report (PER) and
Environmental Report (ER) for the project was prepared and submitted to USDA-RD for approval.
Approval of the PER was issued on March 30, 2010 and approval of the Environmental Report was
issued on January 29, 2010. A copy of each USDA-RD approval letter is included herein. The project is
currently in the design/permitting phase and it is hopeful that construction can start by February 2012.
CMSD purchased 3,500 estuary pounds (5,000 end of pipe pounds) of Total Nitrogen allocation from
UNIFY KINSTON effected March 17, 2010. The current NPDES Permit was modified and this
additional poundage was reflected in the permit effective January 1, 2011. Therefore, CMSD's total
allocated Total Nitrogen Load is 37,100 lb/yr.
We appreciate your consideration of this modification request. If you have any questions or require any
additional information, please do not hesitate to contact me at [phone] or Charlie Davis with The
Wooten Company at [phone].
Sincgrely,
%Ill's
Charles M. Smithwick, Jr.
District Manager, CMSD
Enclosures
c: Charlie Davis, TWC — Raleigh Office

".• •
----Radia(waTacnsiee'l
i • % 7
MAP 1
PROJECT LOCATION MAP
CONTENTNEA METROPOLITAN
SEWERAGE DISTRICT
WWTP IMPROVEMENTS
2000' 1 000' 0 2000'
SCALE: 1".2000'
QUAD SHEET: GRIFTON. NC

MECHANICAL
SCREEN/
BYPASS SCREEN
INFLUENT
(3.5 MGD)
Post -Anoxic Ta
Oxic Tanks Oxic Tanks
Anoxic Tanks
•
Anoxic Tanks
Sodium o
o
Hydroxide m
Feed ,41
GRIT REMOVAL
SYSTEM
PARSHALL FLUME
Anaerobic Selector; anks
cD
H
NOTE:
THE EXISTING FIRST STAGE AERATION TANKS WILL BE
CONVERTED FOR USE AS FLOW EQUALIZATION FACILITIES.
NOTE:
THE EXISTING SECOND STAGE AERATION TANKS, FIRST
STAGE CLARIFIERS AND SECOND STAGE CLARIFIERS WILL BE
CONVERTED FOR USE AS PART OF AEROBIC SLUDGE
STABILIZATION AND STORAGE FACILITIES.
L_]
.,,•001=r
LEGEND
NEW STRUCTURE
EXISTING STRUCTURE
MODIFIED STRUCTURE
MODIFIED STRUCTURE
NEW PROCESS PIPE
EXISTING PROCESS PIPE
�— EXISTING PIPE
NEW SLUDGE PIPE
(3.5 MGD) FLOW BALANCE AT DESIGN
AVERAGE DAILY FLOW
(3.5 MGD) .
DISTRIBUTI • N
[3.5 VGDS
(1.75 rVIGD)
(1.75 MGD)
BOX
(3 5 MGD)
CONTROL
BUILDING
— Sludge Recirculation
(3.5 MGD)
CHEM.
TANKS
BLOWER
PAD
CHEM.
FEED
BUILDING
AERATION BASIN No 1
AERATION BASIN No 2
110.0101
of O1IdUL
oieaunae
0.0.
1
AEROBIC SLUDGE
STABILIZATION /
HOLDING TANKS
UTILITY
BUILDING
iE
(7.0 MGD)
NEW
CLARIFIER
No 1
WASTE SLUDGE
BELT FILTER
PRESS BUILDING
DEWATERED SLUDGE O
0
2
METHANOL Lc)l
STORAGE &
FEED FACILITY
WASTE SLUDGE
FLOW
SPILTTER BOX
0 0
2
.41
NEW
CLARIFIER
No 2
SLUDGE
RECIRCULATION/
WASTE PUMP
STATION
DENITRIFICATION
T FILTER SYSTEM ULTRAVIOLET
DISINFECTION
FILLET/AN 0
Sludge Recirculation
1st STAG
CLARIFIER
NO. 1
AGE
CLARIFIER
NO. 2
1CFEOYOIE FLOW
PUMPING
STATION
--o
AEROBIC DIGESTER
SECOND STAGE
AERATION BASIN No
we. 0101,
SECOND STAGE
AERATION BASIN No 2
4 -]
13.5 MGD)
13.5 MGD}
FILTER
LIFT STATION
POST -AERATION
TANK —
PHASE 2 IMPROVEMENTS
SCHEMATIC FLOW DIAGRAM
CMSD WASTEWATER TREATMENT PLAN
,00
CHLORINE
CONTACT BASIN
nd STAGE
C - = FIER
N'.1
p..
2nd AGE
FIER
NO. 2
0
U'
2
POST
AERATION TANK
— SECOND STAGE
SLUDGE
RECIRCULATION
PUMP STATION
2020 LF 36" DIA
EFFLUENT
OUTFALL
13.5 MGD]
STORMWATER
CHANNEL
TV
SLUDGE
DRYING
BEDS
I
w
U
6
1-
0
I
1101,0n0,0e:00r00>670011 s,o5OO

rtdmit
Sludge Management Plan
CMSD Wastewater Treatment Plant
NPDES Permit No. NC 0032077
Non -Discharge Permit No. WQ0001048
Sludge Production
Contentnea Metropolitan Sewerage District (CMSD) currently operates a 2.85 mgd modified
biological nutrient removal (BNR) plant which discharges its effluent into Contentnea Creek in
the Neuse River Basin under NPDES Permit No. NC0032077. Waste sludge from the modified
BNR plant is discharged to either one (1) 375,000 gallon capacity aerated tank or two (2)
347,500 gallon capacity each aerated tanks for long term sludge stabilization and storage.
Periodically, the sludge is allowed to settle in the basin and the supernatant is withdrawn and
recycled back to the plant headworks for reprocessing. Stabilized sludge can de dewatered in
seven (7) sludge drying beds, each bed with a drying surface area of 2,000 square feet.
When the plant expands to 3.5 mgd capacity and following the addition of the new 5-stage
biological nutrient removal (BNR) activated sludge process, the two existing first stage clarifiers,
two existing second stage aeration basins, and two existing second stage clarifiers shall be
converted to sludge stabilization and holding tanks. Diffused aeration shall be utilized in each
clarifier and a combination of floating aerators and mixers shall be utilized in the second stage
aeration basins. Therefore waste sludge from the new BNR plant shall be discharged to either of
the existing digesters described above or to the existing treatment basins converted to sludge
stabilization/holding described herein. The additional sludge stabilization and holding capacity
created by modifying the existing basins is 1,586,000gallons.
Sludge Stabilization
Class B pathogen reduction requirements are met using either Alternative 1 [Monitoring of Fecal
Coliform, 503.32(b)(2)] or Alternative 2 [Use of Process to Significantly Reduce Pathogens,
503.32(b)(3)]. PSRPs utilized for Alternative 2 include Aerobic Digestion and Lime
Stabilization.
Class B vector attraction reduction requirements are met using one of the following options:
Option 3 [Aerobic Digestion, 503.33(b)(3)], Option 4 [SOUR, 503.33(b)(4)], Option 6 [Alkaline
Stabilization, 503.33(b)(6)], Option 9 [Injection, 503.33(b)(9), or Option 10 [Incorporation,
503.33(b)(10)].
Sludge Disposal
The aerobically stabilized liquefied and sand bed dewatering sludge are land applied at
agronomic rates under Non -Discharge Permit No. WQ0001048. CMSD owns and operates four
(4) land application sites (Sites A-D) totaling 60.37 application acres adjacent to the WWTP.
Additionally, CMSD contracts with McGill Environmental Services for sludge disposal.

elk
USDA ,gar .
Rtlra�l
Development
United States Department of Agriculture
Rural Development
State Office
March 30, 2010
To: Ronnie Pope - Rural Development Area Specialist
Greenville - RD Area 6
Re: Program Support — PER Recommendation
Contentnea Metropolitan Sewerage District (Phase II)
Dear Mr. Pope;
The Wooten Company has submitted a revised PER for the above referenced project.
Rural Development has completed its technical review of this report and it appears that
the project engineer has addressed all of our previous comments. The estimated total
project cost is $14,502,362 with an estimated construction cost of $10,615,000.
Our office recommends that the Town Contentnea Metropolitan Sewerage District (Phase
II) project be considered for USDA Rural Development funding. If there arc any
questions please feel free to contact our office.
Best Regards,
Brian C. Noll, El.
Program Support
Office: 910-253-4448 ext 106
Cell: 910-409-5803
Fax: [phone]
USDA
Cc:
AWL -
Rural
!,.. ,.
Doug Causey
Dennis Delong
4405 Bland Road, Suite 260 Raleigh, North Carolina 27609
Phone: [phone] • Fax: [phone] • TDD: [phone] • Web: http://www.rurdev.usda.govinc
'USDA Is an equal opportunity provider, employer and lender.'
To file a complaint of di=, ,nation write USDA, Director, Office of Civil Rights, Room 32r "' Whitten Building, 1410 and

USDA
Rura•"�
Development
United States Department of Agriculture
Rural Development
State Office
(Exh. A. - S1 1794-1)
January 29, 2010
SUBJECT: Contentnea Metropolitan Sewerage District (CMSD)
Wastewater Treatment System Improvements (Phase 2)
Acceptance of Categorical Exclusion with Environmental Report
TO: Rural Development Processing Office
Greenville, NC
Attn: John H. Nelson — Area Specialist
I have reviewed the Environmental Report (November 2009) for the CMSD Wastewater
Treatment System Improvements (Phase 2) Project prepared by The Wooten Company for the
applicant and have made the following determinations. In accordance with 7 CFR Part 1794.22
(b) and (c), Rural Utilities Service's Environmental Policies and Procedures, the proposed
project meets the classification criteria for a Categorical Exclusion with an Environmental
Report. The environmental report is acceptable for use by USDA - Rural Development as the
Environmental Review for the project.
There will be no conversion of important resources and no public notice will be required for this
project. I will recommend the concurrence of RUS SI 1794 Exhibit H to the State Director.
After the State Director has executed Exhibit H as concurring approval official, the
environmental review process will be complete for this project. A separate FONSI is not required
for this action.
Let me know if you have any questions or if I can help in any way.
40). db
Ned W. Gillispie
Environmental Protection Specialist
Cc: Dennis R. DeLong
Brian C. Noll
4405 Bland Road, Suite 260 Raleigh, North Carolina 27609
Phone: [phone] • Fax: [phone] • TDD: [phone] • Web: http://www.rurdev.usda.gov/nc
Committed to the future of rural communities.
"USDA is an equal opportunity provider, employer and lender."
To file a complaint of discrimination write USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W.,
Washington, DC 20250-9410 or call [phone] (voice) or [phone] (TDD).

USDA
Adel.
Dev�
ent
United States Department of Agriculture
Rural Development
State Office
SUBJECT: Contentnea Metropolitan Sewerage District
Wastewater Treatment System Improvements (Phase 2)
Recommendation of Concurrence of Categorical Exclusion
TO: State Director
Rural Development
I have reviewed the environmental documentation for the Contentnea
Metropolitan Sewerage District Wastewater Treatment System Improvements
(Phase 2) Project. In accordance with 7 CFR Part 1794, Rural Utilities Service's
Environmental Policies and Procedures, the proposed project meets the
classification criteria for a Categorical Exclusion with an Environmental Report.
There is no public review period required for this project. Therefore in
accordance with 40 CFR 1508.4, I recommend that you concur in the Agency's
determination that the proposed project will not have a significant effect on the
human environment. Neither an Environmental Assessment nor an
Environmental Impact Statement is required.
Attached for your concurrence is RUS SI 1794, Exhibit H. Please sign and,
forward the document to the Community Programs Section, Attention Dennis
Delong, who will return the document to the processing office. No Public Notice
is required for this action. This will conclude the Environmental Review Process.
neogo. dbitiets7.ki:e
Ned W. Gillispie
State Environmental Coordinator
Rural Development
Enclosure
cc: John H. Nelson
Dennis DeLong
01-29-10
Date
4405 Bland Road, Suite 260 Raleigh, North Carolina 27609
Phone: [phone] • Fax: [phone] • TDD: [phone] • Web: http://www.rurdev.usda.gov/nc
Committed to the future of rural communities.
"USDA Is an equal opportunity provider, employer and lender."
To file a complaint of discrimination write USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W.,
Washington, DC 20250-9410 or call [phone] (voice) or [phone] (TDD).