NC0020842_Renewal (Application)_20171023

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED
Snow HIII k&WTP, NCO020842
Renewal
Neuse
FORM
2A
NPDES FORK[ 2A APPLICATION OVERVIEW
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION
A Basic Application Information for all Applicants All applicants must complete questions A 1 through A 8 A treatment works
that discharges effluent to surface waters of the United States must also answer questions A 9 through A 12
B Additional Application Information for Applicants with a Design Flow >_ 0 1 mgd All treatment works that have desi n flows
greater than or equal to 0 1 million gallons per day must complete questions B 1 through B 6 RECEI` ED NMEOIDWR
C Certification All applicants must complete Part C (Certification) 0 C T 2 3 2017
SUPPLEMENTAL APPLICATION INFORMATION VVater Quality
Permitting Section
D Expanded Effluent Testing Data A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D (Expanded Effluent Testing Data)
1 Has a design flow rate greater than or equal to 1mgd,
2 Is required to have a pretreatment program (or has one in place), or
3 Is otherwise required by the permitting authority to provide the information
E Toxicity Testing Data A treatment works that meets one or more of the following criteria must complete Part E (Toxicity Testing
Data)
1 Has a design flow rate greater than or equal to 1 mgd,
2 Is required to have a pretreatment program (or has one in place), or
3 Is otherwise required by the permitting authority to submit results of toxicity testing
F Industrial User Discharges and RCRA/CERCLA Wastes A treatment works that accepts process wastewater from any
significant industrial users (SIUs) or receives RCRA or CERCLA wastes must complete Part F (Industrial User Discharges
and RCRA/CERCLA Wastes) SIUs are defined as
1 All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations (CFR) 403 6 and
40 CFR Chapter I, Subchapter N (see instructions), and
2 Any other industrial user that
a Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works (with certain
exclusions), or
b Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant, or
C Is designated as an SIU by the control authority
G Combined Sewer Systems A treatment works that has a combined sewer system must complete Part G (Combined Sewer
Systems)
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 1 of 22

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED
RIVER BASIN
Snow HIII WWTP,
Renewal
Neuse
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works must complete questions A 1 through A 8 of this Basic Application Information Packet
A 1 Facility Information
Facility Name Snow Hill WWTP
Mailing Address PO Box 247
Snow Hill NC 28580
Contact Person Dana Hili
Title Town Manager / PW Director
Telephone Number [phone] x207
Facility Address 102 Daniel Road
(not P O Box) Snow Hill NC 28580
A 2 Applicant Information If the applicant is different from the above, provide the following
Applicant Name
Mailing Address
Contact Person
Title
Telephone Number ( )
Is the applicant the owner or operator (or both) of the treatment works?
x owner x operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant
❑ facility x applicant
A3 Existing Environmental Permits Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state -issued permits)
NPDES NCO020842 PSD
UIC Other WQCS00246
RCRA Other WQ0011448
A 4 Collection System Information Provide information on municipalities and areas served by the facility Provide the name and population of each
entity and, if known, provide information on the type of collection system (combined vs separate) and its ownership (municipal, private, etc )
Name Population Served Type of Collection System Ownership
Snow Hill Collection System 1600 Separate Municipal
Total population served 1600
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 2 of 22

FACILITY NAME AND PERMIT NUMBER. PERMIT ACTION REQUESTED RIVER BASIN
Snow HIII WWTP, NCO020842 Renewal Neuse
A 5. Indian Country
a Is the treatment works located in Indian Country?
❑ Yes x No
b Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from (and eventually flows
through) Indian Country?
❑ Yes x No
AG Flow. Indicate the design flow rate of the treatment plant (i e , the wastewater flow rate that the plant was built to handle) Also provide the
average daily flow rate and maximum daily flow rate for each of the last three years Each year's data must be based on a 12 -month time period
with the 12th month of "this year" occurring no more than three months prior to this application submittal
a Design flow rate 5 mgd
Two Years Ago Last Year This Year
b Annual average daily flow rate 152 .265 244
C Maximum daily flow rate 351 2 238 108
A 7. Collection System Indicate the type(s) of collection system(s) used by the treatment plant Check all that apply Also estimate the percent
contribution (by miles) of each
x Separate sanitary sewer 100 %
❑ Combined storm and sanitary sewer %
A 8 Discharges and Other Disposal Methods
a Does the treatment works discharge effluent to waters of the U S ? x Yes ❑ No
If yes, list how many of each of the following types of discharge points the treatment works uses
I Discharges of treated effluent 1
n Discharges of untreated or partially treated effluent 0
ui Combined sewer overflow points
IV Constructed emergency overflows (prior to the headworks)
V Other
b Does the treatment works discharge effluent to basins, ponds, or other surface impoundments
that do not have outlets for discharge to waters of the U S ? ❑ Yes x No
If yes, provide the following for each surface impoundment
Location
Annual average daily volume discharge to surface impoundment(s) mgd
Is discharge ❑ continuous or ❑ intermittent?
C Does the treatment works land -apply treated wastewater? ❑ Yes x No
If yes, provide the following for each land application site
Location
Number of acres
d
Annual average daily volume applied to site
Is land application ❑ continuous or ❑ intermittent?
Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works?
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22
mgd
❑ Yes x No
Page 3 of 22

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED:
RIVER BASIN
Snow HIII VVVVTP, NCO028042
Renewal
Neuse
If yes, describe the mean(s) by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e g , tank truck, pipe)
If transport is by a party other than the applicant, provide
Transporter Name
Mailing Address
Contact Person
Title
Telephone Number ( )
For each treatment works that receives this discharge, provide the following
Name
Mailing Address
Contact Person
Title
Telephone Number ( )
If known, provide the NPDES permit number of the treatment works that receives this discharge
Provide the average daily flow rate from the treatment works into the receiving facility
mgd
e Does the treatment works discharge or dispose of its wastewater in a manner not included
in A 8 through A 8 d above (e g , underground percolation, well injection) ❑ Yes
x No
If yes, provide the following for each disposal method
Description of method (including location and size of site(s) if applicable)
Annual daily volume disposed by this method
Is disposal through this method ❑ continuous or ❑ intermittent?
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 4 of 22

FACILITY NAME AND PERMIT NUMBER PERMIT ACTION REQUESTED RIVER BASIN
Snow HIII WWTP, NCO028042 Renewal I Neuse
WASTEWATER DISCHARGES
If you answered "Yes" to question A 8 a, complete questions A 9 through A 12 once for each outfall (including bypass points) through
which effluent is discharged Do not include information on combined sewer overflows in this section If you answered "No" to question
A 8 a, go to Part B, "Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0 1 mgd."
A 9. Description of Outfall
a Outfall number 001
b Location Snow Hill 28580
(City or town, if applicable) (Zip Code)
(County)
35"27'24"
(State)
77`40'00"
(Latitude)
(Longitude)
C Distance from shore (if applicable) NA
ft
d Depth below surface (if applicable) NA
ft
e Average daily flow rate 2
mgd
f Does this outfall have either an intermittent or a periodic discharge? ❑ Yes
x No (go to A 9 g )
If yes, provide the following information
Number f times per year discharge occurs
Average duration of each discharge
Average flow per discharge
mgd
Months in which discharge occurs
g Is outfall equipped with a diffuser? ❑ Yes
x No
A 10 Description of Receiving Waters.
a Name of receiving water Contentnea Creek, Class C Swamp NSW in Neuse River Basin
b Name of watershed (if known)
United States Soil Conservation Service 14 -digit watershed code (if known)
c Name of State Management/River Basin (if known) Neuse
United States Geological Survey 8 -digit hydrologic cataloging unit code (if known)
d Critical low flow of receiving stream (if applicable)
acute cfs chronic cfs
e Total hardness of receiving stream at critical low flow (if applicable) mg/I of CaCO3
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 5 of 22

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED
RIVER BASIN
Snow Hill WWTP, NCO020842
Renewal
Neuse
All Description of Treatment
a What level of treatment are provided? Check all that apply
x Primary x Secondary
❑ Advanced ❑ Other Describe
b Indicate the following removal rates (as applicable)
Design BOD5 removal or Design CBOD5 removal 85 %
Design SS removal 85 %
Design P removal
Design N removal %
Other
c What type of disinfection is used for the effluent from this outfall? If disinfection varies by season, please describe
Gas Chlorine
If disinfection is by chlorination is dechlorination used for this outfall? x Yes ❑ No
Does the treatment plant have post aeration? x Yes ❑ No
A 12 Effluent Testing Information All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is
discharged Do not include information on combined sewer overflows in this section All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods In addition, this data must comply with QA/QC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136 Ata
minimum, effluent testing data must be based on at least three samples and must be no more than four and one-half years apart
Outfall number 001
MAXIMUM DAILY VALUE
AVERAGE DAILY VALUE
PARAMETER
Value
Units
Value
Units
Number of Samples
pH (Minimum)
68
s u
pH (Maximum)
73
s u
12
Flow Rate
.351
mgd
152
mgd
Temperature (Winter)
162
C
12
C
5
Temperature (Summer)
296
c
26
C
5
For pH please report a minimum and a maximum daily value
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
POLLUTANT
DISCHARGE
ANALYTICAL
MUMDL
Conc.
Units
Conc
Units
Number of
METHODSamples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN
BOD5
11
Mg/I
36
Mg/I
12
521 OB -11
15130
DEMAND (Report one)
CBOD5
FECAL COLIFORM
1477
#1100m1
7.3
#/100m
12
9222D-97
2001100
TOTAL SUSPENDED SOLIDS (TSS)
3 18
Mg/1
3.06
Mg/I
12
254OD-11
30
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 6 of 22

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED
RIVER BASIN
Snow HIII WWTP, NCO020842
Renewal
Neuse
BASIC APPLICATION INFORMATION
PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR
EQUAL TO 0.1 MGD (100,000 gallons per day).
All applicants with a design flow rate >_ 0 1 mgd must answer questions B 1 through B 6 All others go to Part C (Certification)
B 1 Inflow and Infiltration Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration
1000 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration
A complete survey was completed in 2000 with approximately 50% of the system rehabilitated The only significant 1/1 at
this point is during periods of torrential rain Another 1/1 study is planned for 2018
B 2 Topographic Map Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries This
map must show the outline of the facility and the following information (You may submit more than one map if one map does not show the entire
area )
a The area surrounding the treatment plant, including all unit processes
b The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which
treated wastewater is discharged from the treatment plant Include outfalls from bypass piping, if applicable
c Each well where wastewater from the treatment plant is injected underground
d Wells, springs, other surface water bodies, and drinking water wells that are 1) within % mile of the property boundaries of the treatment
works, and 2) listed in public record or otherwise known to the applicant
e Any areas where the sewage sludge produced by the treatment works is stored, treated, or disposed
f If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act (RCRA) by truck, rail,
or special pipe, show on the map where the hazardous waste enters the treatment works and where it is treated, stored, and/or disposed
B 3 Process Flow Diagram or Schematic Provide a diagram showing the processes of the treatment plant, including all bypass piping and all
backup power sources or redunancy in the system Also provide a water balance showing all treatment units, including disinfection (e g ,
chlorination and dechlorination) The water balance must show daily average flow rates at influent and discharge points and approximate daily flow
rates between treatment units Include a brief narrative description of the diagram
B4 Operation/Maintenance Performed by Contractor(s)
Are any operational or maintenance aspects (related to wastewater treatment and effluent quality) of the treatment works the responsibility of a
contractor? ❑ Yes x No
If yes, list the name, address, telephone number, and status of each contractor and describe the contractor's responsibilities (attach additional
pages if necessary)
Name
Mailing Address
Telephone Number ! )
Responsibilities of Contractor
B 5 Scheduled improvements and Schedules of Implementation Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment, effluent quality, or design capacity of the treatment works If the
treatment works has several different implementation schedules or is planning several improvements, submit separate responses to question B 5
for each (If none, go to question B 6 )
a List the outfall number (assigned in question A 9) for each outfall that is covered by this implementation schedule
b Indicate whether the planned improvements or implementation schedule are required by local, State, or Federal agencies
❑ Yes ❑ No
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 7 of 22

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED
RIVER BASIN
c If the answer to B 5 b is "Yes," briefly describe, including new maximum daily inflow rate (if applicable)
d Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below, as
applicable For improvements planned independently of local, State, or Federal agencies, indicate planned or actual completion dates, as
applicable Indicate dates as accurately as possible
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
Begin Construction
End Construction
Begin Discharge
Attain Operational Level
e Have appropriate permits/clearances concerning other Federal/State requirements been obtained? ❑ Yes ❑ No
Describe briefly
B6 EFFLUENT TESTING DATA (GREATER THAN 0 1 MGD ONLY)
Applicants that discharge to waters of the US must provide effluent testing data for the following parameters Provide the indicated
effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information
on combine sewer overflows in this section All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods In addition, this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate
QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136 At a minimum effluent testing data must be
based on at least three pollutant scans and must be no more than four and on -half years old
Outfall Number
MAXIMUM DAILY
AVERAGE DAILY DISCHARGE
DISCHARGE
ANALYTICAL
POLLUTANT
METHOD
MUMDL
Conc
Units
Conc
Units
Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA (as N)
28
Mgt[
1 66
Mg/I
4
350 1 R2-93
418
CHLORINE (TOTAL
17
Ug/I
166
Ug/l
4
4500-c1 G2000
28
RESIDUAL, TRC)
DISSOLVED OXYGEN
81
Mg/I
75
Mgt]
4
SM4500 O G2001
>5
TOTAL KJELDAHL
22
Mg/I
1 5
Mgt]
4
3512 R2-93
MIR
NITROGEN (TKN)
NITRATE PLUS NITRITE
14
Mg/I
83
Mg/I
353 2 R2-93
MIR
NITROGEN
OIL and GREASE
PHOSPHORUS (Total)
7
Mg/I
38
Mg/I
3654-74
2 quarterly
TOTAL DISSOLVED SOLIDS
(TDS)
OTHER
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 8 of 22

FACILITY NAME AND PERMIT NUMBER
PERMIT ACTION REQUESTED
RIVER BASIN
Snow HIII WWTP, NCO020842
Renewal
Neuse
BASIC APPLICATION INFORMATION
FART C. CERTIFICATION
All applicants must complete the Certification Section Refer to instructions to determine who is an officer for the purposes of this
certification All applicants must complete all applicable sections of Form 2A, as explained in the Application Overview Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement, applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted
Indicate which parts of Form 2A you have completed and are submitting
x Basic Application Information packet Supplemental Application Information packet
❑ Part D (Expanded Effluent Testing Data)
❑ Part E (Toxicity Testing Biomonitonng Data)
❑ Part F (Industrial User Discharges and RCRA/CERCLA Wastes)
❑ Part G (Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information submitted Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathering the information, the information is, to the best of my knowledge and belief, true,
accurate, and complete I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment
for knowing violations
Name and official title Dana Hill, Town Manager/ PW Director
Signature -
Telephone number [phone] x207
Date signed 19 October 2017
Upon request of the permitting authority, you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements
SEN® COMPLETE® FORMS TO:
NC®ENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A (Rev 1-99) Replaces EPA forms 7550-6 & 7550-22 Page 9 of 22

Permit NCONO2
Page 8 of 8
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Quad: Snow Hill, N.C. NCO020842
IAdtude: 35*27'24?'
Town of Snow Hill WWTP
Facility
Location
Longitude: 77*40'00"
Subbasin: 30407
Stream Class: C -Swamp NSW
I Reteiving Stream: Contentnea Creek
North
SCALE 1.24000
Page 8 of 8

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00
SLUDGE WASTING VIA
ONE 200 GPM PUMP
FORCE MECHANICAL
MAIN SCREENING
AERATED
GRIT
REMOVAt-
NEW OUTFALL DUAL AEROBIC DUAL SLUDGEAEROBIC. SOLID AND/OR
HOLLDING LIQUID SLUDGE
TO DIGESTERS 60 DAY TANKS 90 DAY DISPOSAL BY
CONTENTNEA CREEK DETENTION 194,000 DETENTION 258,000 LAND SPREADING
GALLONS GALLONS OR COMPOSTING
---------i
I
(FUTURE)
1
Z d
0.0462 MGD ADF PUMP STATION
-----moi
RAW SEWAGE Qphww = 0.461 MGD
F - - - - - - - - - - - - - - - - - - - ' - - -- -T
0 g
Qphww = 320 GPM
I
1
(
- - - - - - -
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I
- - - - - -
-
INFLUENT PUMP STATION
0.4538 MGD ADF
3 EA 400 GPM PUMPS
RAW SEWAGE
Qphww = 1.15 MGD
n
Qphww = 800 GPM
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DUAL CHLORINATION/
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DUAL 36 FT
DUAL OXIDATION DITCHES TOTAL
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FLOW MEASURING
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CAPACITY 625,000 GALLONS, 30
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SLUDGE WASTING VIA
ONE 200 GPM PUMP
FORCE MECHANICAL
MAIN SCREENING
AERATED
GRIT
REMOVAt-
NEW OUTFALL DUAL AEROBIC DUAL SLUDGEAEROBIC. SOLID AND/OR
HOLLDING LIQUID SLUDGE
TO DIGESTERS 60 DAY TANKS 90 DAY DISPOSAL BY
CONTENTNEA CREEK DETENTION 194,000 DETENTION 258,000 LAND SPREADING
GALLONS GALLONS OR COMPOSTING