NC0050105_Renewal (Application)_20210426

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ROY COOPERy `
Governor VI
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DIONNE DELLI GATTI
Secretary `s m va0,
S.DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
May 11, 2021
Fayetteville Public Works Commission
Attn: Mick J. Noland, Chief Operations Officer
PO BOX 1089
Fayetteville, NC 28302
Subject: Permit Renewal
Application No. NC0050105
Rockfish Creek WWTP
Cumberland County
Dear Applicant:
The Water Quality Permitting Section acknowledges the May 1, 2021 receipt of your permit renewal application and
supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW permitting
branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://deq.nc.gov/permits-regulations/permit-guidance/environmental-application-tracker
If you have any additional questions about the permit, please contact the primary reviewer of the application using the
links available within the Application Tracker.
Sincerely,
cl
Wren edf rd
Administrative Assistant
Water Quality Permitting Section
ec: WQPS Laserfiche File w/application
North Carolina Department of Environmental Quality Divisbn of Water Resources
��`E Fayettevllk Regional Office 225 Green Nreet.Su'e 714 Fayettevilk,Non'Carolina 283OI
�\ I 910 433 3300

IMMET.114S
DARSWEIL L.ROGERS,COMMISSIONER FAYETTEVILLE PUBLIC WORKS COMMISSION
WADE R.FOWLER,JR.,COMMISSIONER 955 OLD WILMINGTON RD
EVELYN O.SHAW,COMMISSIONER P.O.BOX 1089
D.RALPH HUFF,III,COMMISSIONER H ME OWN UTILITY FAYETTEVILLE,NORTH CAROLINA 28302-1089
ELAINA L.BALL,CEO/GENERAL MANAGER TELEPHONE[phone]
WWW.FAYPWC.COM
April 26, 2021
Mr. Michael Montebello
NC DEQ/DWR/Water Quality Permitting Section/Wastewater Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: NPDES Permit Renewal Application
Rockfish Creek Water Reclamation Facility
NPDES Permit No. NC0050105
Dear Mr. Montebello,
Enclosed are an original and two copies of the NPDES permit renewal application and a brief narrative
found in this cover letter explaining the biosolids management plan for the Rockfish Creek Water
Reclamation Facility (WRF) located in Cumberland County. The current NPDES permit NC0050105, was
issued on September 27, 2017 and expires at midnight on October 31, 2021.
The Rockfish Creek biosolids management process scheme treats all aerobically digested waste activated
sludge through five 1.2 MG coarse and fine bubble digesters. A minimum of 40 days solids retention time
SRT per digester allows for proper stabilization and meets all EPA 503 Class B requirements for Pathogen
(SRT) g P P q g
and Vector Attraction Reduction. The specific oxygen uptake rate (SOUR) test is performed to confirm
complete stabilization. After the aerobic digestion process,the biosolids are thickened and placed in three
0.7 MG aerated storage tanks. Beneficial re-use of these thickened biosolids is utilized through a liquid
land application program with participating agricultural farms in Cumberland and surrounding counties.
A Phase III expansion of the Rockfish Creek WRF to 28 MGD is being designed. The Preliminary Engineering
Report was submitted in November of 2019. PWC is requesting that permit limits for 28 MGD remain in
this next permit renewal. PWC has already submitted an Environmental Assessment (EA) and received a
Finding of No Significant Impact (FONSI)to expand the facility to the future 28 MGD permitted flow.
PWC is requesting reduced monitoring for this facility per the Exceptionally Performing Facilities
Guidance. The Rockfish facility meets all the requirements for reduced monitoring. There have been no
civil penalties assessed during the past three years; the permittee nor any of its employees have been
convicted of criminal violations under the Clean Water Act within the last five years; the facility is not
under an SOC; and the facility is not on the EPA's Quarterly Noncompliance Report. For CBOD,TSS, and
Ammonia,the statistics for the past three years are as follows:
BUILDING COMMUNITY CONNECTIONS SINCE 1905
AN EQUAL EMPLOYMENT OPPORTUNITY EMPLOYER

Ammonia CBOD TSS
3 Year Average 0.14 2.36 1.3
3 Year Max 15 38.9 38.4
#Of Data Points 751 753 752
Summer Monthly Average Limit 1.0 5.0 30.0
50%of Summer Monthly Average Limit 0.5 2.5 15
200%of Monthly Limit 200 1000 6000
#of Samples>200%of Monthly Limit 0 0 0
Summer Weekly Average Limit 3.0 7.5 45.0
#of Non-Monthly Average Limit Violations 1 1 0
For fecal coliform,the statistics for the past three years are as follows:
Fecal Coliform
3 Year Geometric Mean 31
3 Year Max 2430
#Of Data Points 747
Monthly Average Limit 200
Weekly Average Limit 400
200%of Monthly Limit 80,000
#of Samples>80000 0
#of Weekly Average Limit Violations
Please note that all violations are a direct result of Hurricane Florence in 2018. This extreme weather
event was beyond the control of the permittee, and the impacts of this extreme event were fully
documented on the eDMR. The Rockfish Creek WRF reported totalized meter flows of 84 MGD during
this event, which exceeds the 55 MGD flow limits for the Effluent Parshall Flume, and the Influent Pump
Station capacity of 62 MGD. The reported flows were outside of the facilities pumping capacity,and above
the metering equipment limits. Therefore,all maximum daily effluent discharge flows should not exceed
62 MGD for this event. Notably, all chronic and secondary species toxicities for this permit application
have been submitted and the results summarized in the attachments.
The Rockfish Creek WRF had one cyanide test result above the detection limit in 2017,which then began
a series of high results in 2018 and one in 2019. Historically, the facility was below detection levels until
2017. A comparison study with three contract laboratories determined EPA Method 335.4 had widely
inconsistent and false high cyanide readings. According to "Factors Affecting Cyanide Generation in
Chlorinated Wastewater Effluent Matrix" and "Insights to False Positive Total Cyanide Measurements in
Wastewater Plant Effluents", there is a known problem with false positives for cyanide analysis in
wastewater effluents. "Insights to False Positive Total Cyanide Measurements in Wastewater Plant
Effluents" suggests that residual chlorine, nitrates, and sulfides could be precursors to the cyanide
formation in preserved samples. As a result of the comparison study, the Rockfish Creek facility chose a
contract laboratory performing cyanide analysis method SM4500 CN. Based on the foregoing and the fact
no further high cyanide test results have been received, we believe that the previous high cyanide test
results were due to sample preservation method changes and do not accurately represent the Rockfish
Creek WRF treated effluent.

Also note that the application form does not allow more than one analytical method or method limits as
the previous application form. EPA Method 200.8 and SM 3113B were used for metal analysis, and both
method limits were added to the application. The applicant abbreviated various methods and limits and
inserted them where it was applicable.
Thank you for your assistance in processing this application. If you have questions or require additional
information, please feel free to contact me at(910) 223-4733,or via email at [e-mail].
Sincerely,
3(41-1
Mick Noland
Fayetteville Public Works Commission
Chief Operations Officer
Water Resources Division
Cc: Chuck Baxley
Scott McCoy
Misty Manning
Rhonda Locklear

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
Form U.S.Environmental Protection Agency
2A "EPA Application for NPDES Permit to Discharge Wastewater
NPDES NEW AND EXISTING PUBLICLY OWNED TREATMENT WORKS
SECTION 1.BASIC APPLICATION INFORMATION FOR ALL APPLICANTS(40 CFR 122.21(j)(1)and(9))
1.1 Facility name
Rockfish Creek WRF
Mailing address(street or P.O.box)
P.O.Box 1089
City or town State ZIP code
0 Fayetteville NC 28302-1089
Contact name(first and last) Title Phone number Email address
Wendell C.Baxley Facility Manager [phone] [e-mail]
Location address(street, route number,or other specific identifier) El Same as mailing address
m 2536 Tracy Hall Road
w
City or town State ZIP code
Fayetteville NC 28306
1.2 Is this application for a facility that has yet to commence discharge?
❑ Yes-4 See instructions on data submission ❑✓ No
requirements for new dischargers.
1.3 Is applicant different from entity listed under Item 1.1 above?
✓❑ Yes ❑ No 4 SKIP to Item 1.4.
Applicant name
Fayetteville Public Works Commission
Applicant address(street or P.O.box)
P.O.Box 1089
City or town State ZIP code
0
Fayetteville NC 28302-1089
Contact name(first and last) Title Phone number Email address
Mick J.Noland WRChiefOperationsOfficer [phone] [e-mail]
1.4 Is the applicant the facility's owner,operator,or both?(Check only one response.)
❑ Owner 0 Operator ✓❑ Both
1.5 To which entity should the NPDES permitting authority send correspondence?(Check only one response.)
0 Facility ❑ Applicant ❑✓ Facility and applicant
(they are one and the same)
1.6 Indicate below any existing environmental permits.(Check all that apply and print or type the corresponding permit
number for each.)
Existing Environmental Permits
✓❑ NPDES(discharges to surface ❑ RCRA(hazardous waste) ❑ UIC(underground injection
water) control)
NC0050105
a ❑ PSD(air emissions) ❑ Nonattainment program(CAA) ❑ NESHAPs(CM)
rn
.N ❑ Ocean dumping(MPRSA) ❑ Dredge or fill(CWA Section ❑✓ Other(specify)
404)
Land-WQ0000527
EPA Form 3510-2A(Revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
1.7 Provide the collection system information requested below for the treatment works.
Municipality Population Collection System Type Ownership Status
Served Served (indicate percentage)
100 %separate sanitary sewer t] Own ❑ Maintain
Z Fayetteville/ 121,188 %combined storm and sanitary sewer El Own ❑ Maintain
Cumberland Co. ❑ Unknown ❑ Own 0 Maintain
co 100 %separate sanitary sewer 0 Own I] Maintain
o Stedman 1,070 %combined storm and sanitary sewer ❑ Own ❑ Maintain
0 Unknown ❑ Own 0 Maintain
0.
O %separate sanitary sewer 0 Own 0 Maintain
a
c %combined storm and sanitary sewer 0 Own 0 Maintain
0 0 Unknown ❑ Own 0 Maintain
E %separate sanitary sewer 0 Own ❑ Maintain
N %combined storm and sanitary sewer 0 Own ❑ Maintain
_ 0 Unknown ❑ Own ❑ Maintain
.3 Total
a Population 122,258
73
ci Served
Separate Sanitary Sewer System Combined Storm and
Sanitary Sewer
Total percentage of each type of
sewer line(in miles) 100 % o
?' 1.8 Is the treatment works located in Indian Country?
•
O ❑ Yes ❑✓ No
U
c 1.9 Does the facility discharge to a receiving water that flows through Indian Country?
c ❑ Yes ❑✓ No
1.10 Provide design and actual flow rates in the designated spaces. Design Flow Rate
21mgd
= (0Annual Average Flow Rates(Actual)
a Two Years Ago Last Year This Year
co
a ce
c
CO
a 15.7(2018) mgd 15.7(2019 mgd 17.6(2020) mgd
'T" Maximum Daily Flow Rates(Actual)
cu
o Two Years Ago Last Year This Year
84(2018) mgd 23.7(2019) mgd 31(2020) mgd
u) 1.11 Provide the total number of effluent discharge points to waters of the United States by type.
o Total Number of Effluent Discharge Points by Type
a_ . Constructed
ET 1— Treated Effluent Untreated Effluent Combined Sewer Bypasses Emergency
co_c Overflows Overflows
U
en
0 one
EPA Form 3510-2A(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
Outfalls Other Than to Waters of the United States
1.12 Does the POTW discharge wastewater to basins,ponds,or other surface impoundments that do not have outlets for
discharge to waters of the United States?
El Yes ❑✓ No 4 SKIP to Item 1.14.
1.13 Provide the location of each surface impoundment and associated discharge information in the table below.
Surface Impoundment Location and Discharge Data
Average Daily Volume Continuous or Intermittent
Location Discharged to Surface
Impoundment (check one)
❑ Continuous
gpd 0 Intermittent
❑ Continuous
gpd 0 Intermittent
❑ Continuous
gpd ❑ Intermittent
2 1.14 Is wastewater applied to land?
❑ Yes ❑✓ No 4 SKIP to Item 1.16.
0 1.15 Provide the land application site and discharge data requested below.
0 Land Application Site and Discharge Data
Continuous or
Location Size Average Daily Volume Intermittent
Applied (check one)
to
acres d ❑ Continuous
o gp ❑ Intermittent
acresgpd ❑ Continuous
❑ Intermittent
-p ❑ Continuous
acres gpd ❑ Intermittent
77, 1.16 Is effluent transported to another facility for treatment prior to discharge?
o El Yes ❑ No 4 SKIP to Item 1.21.
1.17 Describe the means by which the effluent is transported(e.g.,tank truck,pipe).
1.18 Is the effluent transported by a party other than the applicant?
El Yes El No 4 SKIP to Item 1.20.
1.19 Provide information on the transporter below.
Transporter Data
Entity name Mailing address(street or P.O.box)
City or town State ZIP code
Contact name(first and last) Title
Phone number Email address
EPA Form 3510-2A(Revised 3-19) Page 3

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
1.20 In the table below, indicate the name,address,contact information,NPDES number,and average daily flow rate of the
receiving facility.
Receiving Facility Data
Facility name Mailing address(street or P.O.box)
City or town State ZIP code
0
aContact name(first and last) Title
0
Phone number Email address
aNPDES number of receiving facility(if any) 0 None Average daily flow rate mgd
0 1.21 Is the wastewater disposed of in a manner other than those already mentioned in Items 1.14 through 1.21 that do not
have outlets to waters of the United States(e.g.,underground percolation,underground injection)?
ElYes ❑✓ No 4 SKIP to Item 1.23.
s
U
0 1.22 Provide information in the table below on these other disposal methods.
Information on Other Disposal Methods
o Disposal Location of Size of Annual Average Continuous or Intermittent
Method Disposal Site Disposal Site Daily Discharge (check one)
Description Volume
acres gpd ❑ Continuous
0 Intermittent
0 Continuous
acres gpd 0 Intermittent
acresgpd ❑ Continuous
0 Intermittent
1.23 Do you intend to request or renew one or more of the variances authorized at 40 CFR 122.21(n)?(Check all that apply.
Consult with your NPDES permitting authority to determine what information needs to be submitted and when.)
H
Discharges into marine waters(CWA Water quality related effluent limitation(CWA Section
❑ Section 301(h)) ❑ 302(b)(2))
✓❑ Not applicable
1.24 Are any operational or maintenance aspects(related to wastewater treatment and effluent quality)of the treatment works
the responsibility of a contractor?
0 Yes ❑✓ No+SKIP to Section 2.
1.25 Provide location and contact information for each contractor in addition to a description of the contractor's operational
and maintenance responsibilities.
Contractor Information
Contractor 1 Contractor 2 Contractor 3
a Contractor name
(company name)
o Mailing address
(street or P.O.box)
City,state,and ZIP
code
0 Contact name(first and
co last)
Phone number
Email address
Operational and
maintenance
responsibilities of
contractor
EPA Form 3510-2A(Revised 3-19) Page 4

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
SECTION 2.ADDITIONAL INFORMATION(40 CFR 122.21(j)(1)and(2))
Outfalls to Waters of the United States
2.1 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
❑✓ Yes El No 4 SKIP to Section 3.
0 2.2 Provide the treatment works'current average daily volume of inflow Average Daily Volume of Inflow and Infiltration
and infiltration. 8,780,000 gpd
4
Indicate the steps the facility is taking to minimize inflow and infiltration.
as PWC cleans 20%of sewer lines each year and performs CCTV inspections on 6%of the lines each year. The FPWC FY21
budget for the collection system rehabilitation program is$5,674,000.Current trenchless projects include CIPP Lining of
7C gravity sewer mains and manhole reconstruction with hydrogen sulfide resistant Ploymeric Lining systems.
2.3 Have you attached a topographic map to this application that contains all the required information?(See instructions for
0 specific requirements.)
0
❑✓ Yes ❑ No
E 2.4 Have you attached a process flow diagram or schematic to this application that contains all the required information?
``
0 cr, (See instructions for specific requirements.)
`l o ElYes El No
2.5 Are improvements to the facility scheduled?
El Yes ❑ No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
.? 1. Currently,designing Phase 3 Expansion with Hazen,consulting engineers,to expand facility to 28 MGD.
c
ai
E
2. New/Modified influent screw pumps to provide a capacity of 68 MGD.
0
3.Two 1.9 MG aeration basins,160 ft final clarifier,2 effluent filters,intermediate pump,a 4th chlorine contact channel.
a
4. Biosolids expansion-two 1.2 MG aerobic digesters,three gravity belt thickeners,and a new dewatering facility.
cn
2.6 Provide scheduled or actual dates of completion for improvements.
Scheduled or Actual Dates of Completion for Improvements
Scheduled
Affected Attainment of
Begin End Begin
Outfalls Operational
o Improvement Construction Construction Discharge
(from above) (list outfall (MM/DD/YYYY) (MM/DD/YYYY) (MM/DD/YYYY) Level
number) (MM/DD/YYYY)
a
1. 001 02/01/2023 02/01/2026
a
U 2
3.
4.
2.7 Have appropriate permits/clearances concerning other federal/state requirements been obtained?Briefly explain your
response.
El Yes ElNo ❑ None required or applicable
Explanation:
The PER was submitted November 2019,additional reports and applications will be submitted per DEQ regulations.
EPA Form 3510-2A(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
SECTION 3.INFORMATION ON EFFLUENT DISCHARGES(40 CFR 122.21(j)(3)to(5))
3.1 Provide the following information for each outfall.(Attach additional sheets if you have more than three outfalls.)
Outfall Number o01 Outfall Number Outfall Number
State NC
County Cumberland
City or town Fayetteville
.Q Distance from shore 2 ft. ft. ft.
Depth below surface 3 ft. ft. ft.
Average daily flow rate 17.6 mgd mgd mgd
Latitude 34° 58' 08" N °
Longitude 78° 49' 39" W
3.2 Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
o ❑ Yes ❑✓ No 4 SKIP to Item 3.4.
3.3 If so,provide the following information for each applicable outfall.
Outfall Number Outfall Number Outfall Number
Number of times per year
o discharge occurs
a Average duration of each
discharge(specify units)
7,0
Average flow of each
discharge mgd mgd mgd
c n Months in which discharge
occurs
3.4 Are any of the outfalls listed under Item 3.1 equipped with a diffuser?
❑ Yes ❑✓ No 4 SKIP to Item 3.6.
3.5 Briefly describe the diffuser type at each applicable outfall.
a
Outfall Number Outfall Number Outfall Number
(I,
N
vi 3.6 Does the treatment works discharge or plan to discharge wastewater to waters of the United States from one or more
12 discharge points?
ra
❑✓ Yes ❑ No 4SKIP to Section 6.
EPA Form 3510-2A(Revised 3-19) Page 6

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
3.7 Provide the receiving water and related information(if known)for each outfall.
Outfall Number 001 Outfall Number Outfall Number
Receiving water name Cape Fear River
Name of watershed,river,
0 or stream system Cape Fear
a U.S.Soil Conservation
N Service 14-digit watershed
o code
R Name of state
management/river basin Upper Cape Fear
rn
.- U.S.Geological Survey
ai 8-digit hydrologic 03030004
ce cataloging unit code
Critical low flow(acute) 684 cfs cfs cfs
Critical low flow(chronic) 684 cfs cfs cfs
Total hardness at critical mg/L of mg/L of mg/L of
low flow CaCO3 CaCO3 CaCO3
3.8 Provide the following information describing the treatment provided for discharges from each outfall.
Outfall Number 001 Outfall Number Outfall Number
Highest Level of ❑ Primary 0 Primary ❑ Primary
Treatment(check all that ❑ Equivalent to 0 Equivalent to ❑ Equivalent to
apply per outfall) secondary secondary secondary
❑ Secondary 0 Secondary ❑ Secondary
O Advanced 0 Advanced 0 Advanced
❑ Other(specify) 0 Other(specify) 0 Other(specify)
c
0
'a Design Removal Rates by
O Outfall °
Ul
c
BOD5 or CBOD5 98
E
O TSS 98 % % %
F
IZI Not applicable ❑Not applicable 0 Not applicable
Phosphorus
l Not applicable 0 Not applicable 0 Not applicable
Nitrogen % °/o °
/o
Other(specify) 0 Not applicable 0 Not applicable ❑Not applicable
EPA Form 3510-2A(Revised 3-19) Page 7

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
3.9 Describe the type of disinfection used for the effluent from each outfall in the table below. If disinfection varies
Yp by
season,describe below.
-a Sodium Hypochlorite
w
I �
0
U
Outfall Number 001 Outfall Number Outfall Number
a Disinfection type
Sodium Hypochlorite
CI
Seasons used
Year Round
177
Dechlorination used? ❑ Not applicable ❑ Not applicable ❑ Not applicable
❑✓ Yes ❑ Yes ❑ Yes
❑ No ❑ No ❑ No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
✓❑ Yes ❑ No
3.11 Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
ElYes ❑ No 4 SKIP to Item 3.13.
3.12 Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
discharges by outfall number or of the receiving water near the discharge points.
Outfall Number 001 Outfall Number Outfall Number
Acute Chronic Acute Chronic Acute Chronic
Number of tests of discharge
water 21
Number of tests of receiving
water
3.13 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
ElYes ❑ No 4 SKIP to Item 3.16.
0 3.14 Does the POTW use chlorine for disinfection,use chlorine elsewhere in the treatment process,or otherwise have
c reasonable potential to discharge chlorine in its effluent?
❑✓ Yes 4 Complete Table B,including chlorine. ❑ No 4 Complete Table B,omitting chlorine.
3.15 Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
package?
❑✓ Yes ❑ No
3.16 Does one or more of the following conditions apply?
• The facility has a design flow greater than or equal to 1 mgd.
• The POTW has an approved pretreatment program or is required to develop such a program.
• The NPDES permitting authority has informed the POTW that it must sample for the parameters in Table C,must
sample other additional parameters(Table D),or submit the results of WET tests for acute or chronic toxicity for
each of its discharge outfalls(Table E).
❑✓ Yes 4 Complete Tables C, D,and E as ❑ No 4 SKIP to Section 4.
applicable.
3.17 Have you completed monitoring for all applicable Table C pollutants and attached the results to this application
package?
❑✓ Yes ❑ No
3.18 Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
attached the results to this application package?
❑ Yes ❑✓ No additional sampling required by NPDES
permitting authority.
EPA Form 3510-2A(Revised 3-19) Page 8

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
3.19 Has the POTW conducted either(1)minimum of four quarterly WET tests for one year preceding this permit application
or(2)at least four annual WET tests in the past 4.5 years?
✓❑ Yes ❑ No 4 Complete tests and Table E and SKIP to
Item 3.26.
3.20 Have you previously submitted the results of the above tests to your NPDES permitting authority?
No 4 Provide results in Table E and SKIP to
❑✓ Yes ❑ Item 3.26.
3.21 Indicate the dates the data were submitted to your NPDES permitting authority and provide a summary of the results.
Date(s)Submitted Summary of Results
(MM/DD/YYYY)
All17 Ceriodaphnia and 4 Fathead Minnow chronic toxicitytaken since
Ce odap a a
02/03/2021 2017 passed. See attachment for toxicity submittal dates and results.
c i
0
ca 3.22 Regardless of how you provided your WET testing data to the NPDES permitting authority,did any of the tests result in
�°
toxicity?
�' ❑ Yes ElNo 4 SKIP to Item 3.26.
3.23 Describe the cause(s)of the toxicity:
w
3.24 Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑✓ No 4 SKIP to Item 3.26.
3.25 Provide details of any toxicity reduction evaluations conducted.
3.26 Have you completed Table E for all applicable outfalls and attached the results to the application package?
El Yes ❑✓ Not applicable because previously submitted
information to the NPDES •ermittin• authorit .
SECTION 4.INDUSTRIAL DISCHARGES AND HAZARDOUS WASTES(40 CFR 122.21(j)(6)and(7))
4.1 Does the POTW receive discharges from SIUs or NSCIUs?
ElYes ❑ No 4 SKIP to Item 4.7.
gi 4.2 Indicate the number of Sills and NSCIUs that discharge to the POTW.
Number of Sills Number of NSCIUs
4 0
12 4.3 Does the POTW have an approved pretreatment program?
_ ❑✓ Yes ❑ No
g 4.4 Have you submitted either of the following to the NPDES permitting authority that contains information substantially
identical to that required in Table F:(1)a pretreatment program annual report submitted within one year of the
application or(2)a pretreatment program?
ElYes ❑ No 4 SKIP to Item 4.6.
s 4.5 Identify the title and date of the annual report or pretreatment program referenced in Item 4.4.SKIP to Item 4.7.
Pretreatment Program Info Database Fayetteville PWC Rockfish Creek WWTP 03/01/2021
4.6 Have you completed and attached Table F to this application package?
ElYes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 9

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
POTW receive,or has it been notified that it will receive,bytruck, rail,or dedicated pipe,anywastes that are
4.7 Does the ep p ,
regulated as RCRA hazardous wastes pursuant to 40 CFR 261?
❑ Yes ❑✓ No 4 SKIP to Item 4.9.
4.8 If yes,provide the following information:
Annual
Hazardous Waste Waste Transport Method Amount of Units
Number (check all that apply) Waste
Received
❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
0
❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
O
N ❑ Truck ❑ Rail
CCI
_ ❑ Dedicated pipe ❑ Other(specify)
-0
N
0 4.9 Does the POTW receive,or has it been notified that it will receive,wastewaters that originate from remedial activities,
including those undertaken pursuant to CERCLA and Sections 3004(7)or 3008(h)of RCRA?
❑ Yes ❑✓ No 4 SKIP to Section 5.
11) 4.10 Does the POTW receive(or expect to receive)less than 15 kilograms per month of non-acute hazardous wastes as
specified in 40 CFR 261.30(d)and 261.33(e)?
❑✓ Yes 4 SKIP to Section 5. ❑ No
4.11 Have you reported the following information in an attachment to this application:identification and description of the
site(s)or facility(ies)at which the wastewater originates;the identities of the wastewater's hazardous constituents;and
the extent of treatment, if any,the wastewater receives or will receive before entering the POTW?
❑ Yes ❑ No
SECTION 5.COMBINED SEWER OVERFLOWS(40 CFR 122.21(j)(8))
5.1 Does the treatment works have a combined sewer system?
co
❑ Yes ❑✓ No-SKIP to Section 6.
5.2 Have you attached a CSO system map to this application?(See instructions for map requirements.)
a ❑ Yes ❑ No
5.3 Have you attached a CSO system diagram to this application?(See instructions for diagram requirements.)
❑ Yes ❑ No
U
EPA Form 3510-2A(Revised 3-19) Page 10

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
5.4 For each CSO outfall,provide the following information. (Attach additional sheets as necessary.)
CSO Outfall Number CSO Outfall Number CSO Outfall Number
City or town
0
State and ZIP code
1 0
N
o County
R
Latitude ° °
0 '
o °
u) Longitude ° ° II
Distance from shore ft. ft. ft.
Depth below surface ft. ft. ft.
5.5 Did the POTW monitor any of the following items in the past year for its CSO outfalls?
CSO Outfall Number CSO Outfall Number CSO Outfall Number
Rainfall El Yes El No ❑ Yes ❑ No ❑ Yes ❑ No
cm
c
0 CSO flow volume ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
w.
CSO pollutant ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
o concentrations
u)
c� Receiving water quality ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes El No
• CSO frequency ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
Number of storm events ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
5.6 Provide the following information for each of your CSO outfalls.
CSO Outfall Number CSO Outfall Number CSO Outfall Number
} Number of CSO events in events events events
e the past year
cri
c Average duration per hours hours hours
event 0 Actual or 0 Estimated 0 Actual or❑ Estimated ❑Actual or 0 Estimated
u' million gallons million gallons million gallons
o Average volume per event
`_c) 0 Actual or El Estimated 0 Actual or❑ Estimated 0 Actual or❑ Estimated
Minimum rainfall causing inches of rainfall inches of rainfall inches of rainfall
a CSO event in last year ❑Actual or 0 Estimated El Actual or 0 Estimated 0 Actual or 0 Estimated
EPA Form 3510-2A(Revised 3-19) Page 11

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19 •
1100007 34 180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
•
5.7 Provide the information in the table below for each of your CSO outfalls. ••.•
CSO Outfall Number - CSO Outfall Number • - -,CSO Pullen.Number.::'..-•
— — ..... •.
Receiving water name
Name of watershed/
stream system
e
w U.S.Soil Conservation 0 Unknown El Unknown 0 Unknown
co
. Service 14-digit
watershed code
(if known)
co::-•
1 g ... Name of state
1 w management/river basin
co U.S,Geological Survey 0 Unknown D Unknown CI Unknown
o
8-Digit Hydrologic Unit
Code(if known)
Description of known
water quality impacts on
receiving stream by CSO
(see instructions for
exam•les
SECTION 6.CHECKLIST AND CERTIFICATION STATEMENT(40 CFR 122.22(a)and(d))
6.1 In Column 1 below,mark the sections of Form 2A that you have completed and are submitting with your application.For
each section,specify in Column 2 any attachments that you are enclosing to alert the permitting authority.Note that not
all applicants are required to provide attachments.
Column 2
Section 1:Basic Application •—. ...
•
wl variance request(s) 0 w/additional attachments ,
Information for All Applicants u
Section 2:Additional 0 wl topographic map 0 wl process flow diagram
Information D wl additional attachments
0 wl Table A 0 w/Table D
El Section 3:Information on
0 w/Table B El w/Table E
.,.,
c Effluent Discharges
el)
E El w/Table C 0 w/additional attachments
co
..-
co Section 4:Industrial CI w/SIU and NSCIU attachments D w/Table F
u) El Discharges and Hazardous
Wastes 1=I w/additional attachments
IS ....
0 ' 0 Section 5:Combined Sewer 0 w/CSO map D w/additional attachments
co Overflows El w/CSO system diagram
, 0
"Cl 0 Section 6:Checklist and
c Certification Statement 0 w/attachments
-.-
-7 2 6.2 Certification Statement
a)
bc 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 submitted 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(print or type first and last name) Official title
Mick J.Noland,P.E. WR Chief Operations Officer
Signature Date igned
ita I 14,--1
EPA Form 3510-2A(Revised 3-19) Page 12
i

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE A.EFFLUENT PARAMETERS FOR ALL POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant
Value Units Value Units Number of Method1 (include units)
Samples
Biochemical oxygen demand
❑BOD5 or Li CBOD5 4.75 mg/I 1.69 mg/I 252 SM 5210 B-2011 2.0 mg/I ML
(report one) ❑MDL
Fecal coliform 517 MPN/100 mis 18 MPN/100 mis 249 IDEXX Colilert 18 1 MPN ML
❑MDL
Design flow rate 31 MGD 17.6 MGD 366
pH(minimum) 6.4 s.u.
pH(maximum) 7.4 s.u.
Temperature(winter) 24 Celsius 18 Celsius 103
Temperature(summer) 28 Celsius 24 Celsius 149
l7I ML
Total suspended solids(TSS) 10.6 mg/I 0.15 mg/I 252 SM 2540 D-2011 2.5 mg/I ❑MDL
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 13

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE B.EFFLUENT PARAMETERS FOR ALL POTWS WITH A FLOW EQUAL TO OR GREATER THAN 0.1 MGD
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant
Value Units Value Units NSamplest Method"' (include units)
Ammonia(as N) 0.52 mg/I .08 mg/I 252 EPA 350.1,SM 4500 0.1 mg/I t0 ML
MDL
Chlorine <25 u /I 0 u /I 253 SM 4500-CI G-2011 0.2 mg/I 0 ML
(total residual,TRC)2 g g ❑MDL
Dissolved oxygen 10.8 mg/I 8.4 mg/I 252 SM 4500-0 G-2011 0.1 mg/I 0 ML
❑MDL
Nitrate/nitrite 21.5 mg/I 16.8 mg/I 52 EPA 353.2 0.1 mg/I l0 ML
MDL
Kjeldahl nitrogen 1.77 mg/I 0.18 mg/I 53 EPA 351.1 0.2 mg/I ML
0 MDL
Oil and grease <5.0 mg/I 0 mg/I 3 EPA 1664A 5.0 mg/I 0 ML
❑MDL
Phosphorus 4.12 mg/I 2.94 mg/I 52 EPA 200.7 .02 mg/I 2 ML
❑MDL
Total dissolved solids 308 mg/I 302 mg/I 3 SM 2540C 10.0 mg/I 0 ML
0 MDL
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
2 Facilities that do not use chlorine for disinfection,do not use chlorine elsewhere in the treatment process,and have no reasonable potential to discharge chlorine in their effluent are not
required to report data for chlorine.
EPA Form 3510-2A(Revised 3-19) Page 15

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE C.EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method1 (include units)
Value Units Value Units Samples
Metals,Cyanide,and Total Phenols
Hardness(as CaCO3) 119 mg/I 80 mg/I 17 SM 2340B 1 mg/I ❑' ML
❑MDL
Antimony,total recoverable <0.5 ug/I 0 ug/I 3 EPA 200.8 0.5 ug/I 0 ML
0 MDL
Arsenic,total recoverable <10 ug/I 0 ug/I 24 200.8,SM 3113B 2,10 ug/I ML
0 MDL
Beryllium,total recoverable <0.5 ug/I 0 ug/I 3 EPA 200.8 0.5 ug/I 0 ML
0 MDL
Cadmium,total recoverable <0.275 ug/I 0 ug/I 24 200.8,SM 3113B 0.275 ug/I 0 ML
0 MDL
Chromium,total recoverable 3 ug/I 0.39 ug/I 24 200.8,SM 3113B 2,5 ug/I 0 ML
❑MDL
Copper,total recoverable 8.5 ug/I 3.39 ug/I 24 200.8,SM 3113B 2,1.1 ug/I 0 ML
MDL
Lead,total recoverable 1.1 ug/I 0.05 ug/I 24 200.8,SM 3113B 0.5,2 ug/I l0 ML
MDL
Mercury,total recoverable 5.25 ug/I 2.50 ug/I 24 EPA 1631 1 ng/I 0 ML
❑MDL
Nickel,total recoverable 11 ug/I 1.00 ug/I 24 200.8,SM 3113B 0.5,1 ug/I ML
0 MDL
Selenium,total recoverable <10 ug/I 0 ug/I 24 200.8,SM 3113B 1,10 ug/I l0 ML
MDL
Silver,total recoverable <1 ug/I 0 ug/I 24 200.8,SM 3113B 0.5,1ug/I 0 ML
0 MDL
Thallium,total recoverable <0.5 ug/I 0 ug/I 3 EPA 200.8 0.5 ug/I 0 ML
0 MDL
Zinc,total recoverable 382 ug/I 157 ug/I 129 200.8,SM 3111B 5,10 ug/I CI ML
0 MDL
Cyanide 15 ug/I 2.33 ug/I 23 EPA 335.4,SM 4500 5 ug/I 0 ML
0 MDL
Total phenolic compounds 48 ug/I 19 ug/I 3 EPA 624.1 10 ug/I 0 ML
0 MDL
Volatile Organic Compounds
0 ML
Acrolein <50.0 ug/I 0 ug/I 3 EPA 624.1 50 ug/I 0 MDL
•
Acrylonitrile <10.0 ug/I 0 ug/I 3 EPA 624.1 10 ug/I 0 ML
❑MDL
•
Benzene <1.0 ug/I 0 ug/I 3 EPA 624.1 1.0 ug/I 0 ML
MDL
Bromoform <1.0 ug/I 0 ug/I 3 EPA 624.1 1.0 ug/I 0 ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 17

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 0MB No.2040-0004
TABLE C.EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method1 (include units)
Value Units Value Units Samples
Carbon tetrachloride <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I ❑O ML
❑MDL
Chlorobenzene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 ML
❑MDL _
Chlorodibromomethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 DL
0 ML
Chloroethane <5.0 ug/I 0 ug/I 3 EPA 624.1 5 ug/I 0 MDL
2-chloroethylvinyl ether <5.0 ug/I 0 ug/I 3 EPA 624.1 5 ug/I 0 MDL
Chloroform 4.57 ug/I 4.11 ug/I 3 EPA 624.1 1 ug/I 0 ML
❑MDL
0 ML
Dichlorobromomethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 MDL
1,1-dichloroethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I ML
0 MDL
0 ML
1,2-dichloroethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 MDL
0 ML
trans-1,2-dichloroethylene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I D MDL
0 ML
1,1-dichloroethylene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 MDL
1,2-dichloropropane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I ML
0 MDL
1,3-dichloropropylene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 ML
0 MDL
Ethylbenzene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I ML
0 MDL
0 ML
Methyl bromide <5.0 ug/I 0 ug/I 3 EPA 624.1 5 ug/I ❑MDL
ML
Methyl chloride <5.0 ug/I 0 ug/I 3 EPA 624.1 5 ug/I 0 MDL
Methylene chloride <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I l0 ML
MDL
0 ML
1,1,2,2-tetrachloroethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 MDL
0 ML
Tetrachloroethylene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 MDL
21 ML
Toluene <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I ❑MDL
1,1,1-trichloroethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 ug/I 0 ML
0 MDL
1,1,2-trichloroethane <1.0 ug/I 0 ug/I 3 EPA 624.1 1 u g/10 ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 18

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE C.EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method1 (include units)
Value Units Value Units Samples
Trichloroethylene <5.0 ug/I 0 ug/I 3 EPA 624.1 5 ugh 0 ML
0 MDL
Vinyl chloride <5.0 1 ug/I 0 ug/I 3 EPA 624.1 5 ugh l0 ML
MDL
Acid-Extractable Compounds
p-chloro-m-cresol <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ML
0 MDL
2-chlorophenol <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I O ML
❑MDL
2,4-dichlorophenol <10 ugh! 0 ug/I 3 EPA 625.1 10 ug/I ML
❑MDL
2,4-dimethylphenol <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
0 MDL
4,6-dinitro-o-cresol <50.0 ug/I 0 ug/I 3 EPA 625.1 50 ug/I 0 ML
0 MDL
2,4-dinitrophenol <50.0 ug/I 0 ug/I 3 EPA 625.1 50 ug/I 0 ML
0 MDL
2-nitrophenol <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
4-nitrophenol <50.0 ug/I 0 ug/I 3 EPA 625.1 50 ug/I 0 ML
0 MDL
Pentachlorophenol <50.0 ug/I 0 ug/I 3 EPA 625.1 50 ug/I ❑O ML
0 MDL
Phenol 48 ug/I 19.3 ug/I 3 EPA 624.1 10 ug/I El ML
0 MDL
2.4,6-trichlorophenol <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ❑� ML
0 MDL
Base-Neutral Compounds
Acenaphthene <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
Acenaphthylene <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ❑ML
. ❑MDL
Anthracene <10 ug/I 0 ug/I 3 EPA 625.1 10 ugh 0 ML
0 MDL
•
Benzidine <50 ug/I 0 ug/I 3 EPA 625.1 50 ug/I 0 ML
❑MDL
Benzo(a)anthracene <10 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
Benzo(a)pyrene <10 ug/I 0 ug/I 3 EPA 625.1 10ug/I 0 ML
0 MDL
3,4-benzofluoranthene <10 ug/I 0 ug/I 3 EPA 625.1 10ug/I 0 ML
❑MDL
EPA Form 3510-2A(Revised 3-19) Page 19

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE C.EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method1 (include units)
Value Units Value Units Samples
Benzo(ghi)perylene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ❑ML
0 MDL
El Benzo(k)fluoranthene <10.0 ug/1 0 ug/I 3 EPA 625.1 10 ug/I ML
0 MDL
Bis(2-chloroethoxy)methane <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
Bis(2-chloroethyl)ether <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
Bis(2-chloroisopropyl)ether <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML 0 MDL
Bis(2-ethylhexyl)phthalate <10.00 ug/I 0 ug/1 3 EPA 625.1 10 ug/1 0 ML
MDL
0 ML
4-bromophenyl phenyl ether <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
Butyl benzyl phthalate <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ML
0 MDL
El 2-chloronaphthalene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ML
0 MDL
0 ML
4-chiorophenyl phenyl ether <10.0 ug/1 0 ug/1 3 EPA 625.1 10 ug/I 0 MDL
ML
Chrysene <10.0 ug/1 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
ML
di-n-butyl phthalate <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
ML
di-n-octyl phthalate <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
Dibenzo(a,h)anthracene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
0 MDL
1,2-dichlorobenzene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
1,3-dichlorobenzene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
0 MDL
1,4-dichlorobenzene <10.0 ug/1 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
0 ML
3,3-dichlorobenzidine <50.0 ug/I 0 ug/I 3 EPA 625.1 50 ug/I 0 MDL
0 ML
Diethyl phthalate <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
Dimethyl phthalate <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
0 ML
2,4-dinitrotoluene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
0 ML
2,6-dinitrotoluene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
EPA Form 3510-2A(Revised 3-19) Page 20

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE C.EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge Analytical ML or MDL
Pollutant Number of Method1 (include units)
Value Units Value Units Samples
1,2-diphenylhydrazine <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
Fluoranthene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
0 ML
Fluorene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ❑MDL
0 ML
Hexachlorobenzene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
Hexachlorobutadiene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ❑ML
0 MDL
Hexachlorocyclo-pentadiene 50.0 ug/I 0 ug/I 3 EPA 625.1 50 ug/I ❑ML
❑MDL
Hexachloroethane <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
0
Indeno(1,2,3-cd)pyrene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ML
0 MDL
Isophorone <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
Naphthalene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I CI ML
0 MDL
Nitrobenzene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 MDL
N-nitrosodi-n-propylamine <10.0 ugh! 0 ug/I 3 EPA 625.1 10 ug/I DL
N-nitrosodimethylamine <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 0 ML
❑MDL
N-nitrosodiphenylamine <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I 2 ML
❑MDL
Phenanthrene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ugh' 0 ML 0 MDL
Pyrene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ML
0 MDL
1,2,4-trichlorobenzene <10.0 ug/I 0 ug/I 3 EPA 625.1 10 ug/I ❑ML
0 MDL
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e., methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or
required under 40 CFR Chapter I,Subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 21

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE D.ADDITIONAL POLLUTANTS AS REQUIRED BY NPDES PERMITTING AUTHORITY
Maximum Daily Discharge Average Daily Dischar e
Pollutant Analytical ML or MDL
(list) Value Units Value Units Number of Method1 (include units)
Samples
0 No additional sampling is required by NPDES permitting authority.
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
El ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
❑ML
❑MDL
1 Sampling shall be conducted according to sufficiently sensitive test procedures(i.e.,methods)approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required
under 40 CFR chapter I,subchapter N or 0.See instructions and 40 CFR 122.21(e)(3).
EPA Form 3510-2A(Revised 3-19) Page 23

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EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE E.EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample.Copy the table to report additional test results.
Test Information
Test Number Test Number Test Number
Test species
Age at initiation of test
Outfall number
Date sample collected
Date test started
Duration
Toxicity Test Methods
Test method number
Manual title
Edition number and year of publication
Page number(s)
Sample Type
Check one: 0 Grab 0 Grab 0 Grab
0 24-hour composite 0 24-hour composite 0 24-hour composite
Sample Location
Check one: 0 Before Disinfection 0 Before Disinfection 0 Before disinfection
0 After Disinfection 0 After Disinfection 0 After disinfection
❑ After Dechlorination 0 After Dechlorination 0 After dechlorination
Point in Treatment Process
Describe the point in the treatment process
at which the sample was collected for each
test.
Toxicity Type
Indicate for each test whether the test was 0 Acute 0 Acute 0 Acute
performed to asses acute or chronic toxicity,
or both.(Check one response.) ❑ Chronic 0 Chronic ❑ Chronic
0 Both ❑ Both 0 Both
EPA Form 3510-2A(Revised 3-19) Page 25

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE E.EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Number Test Number Test Number
Test Type
Indicate the type of test performed.(check one ❑ Static 0 Static 0 Static
response.)
❑ Static-renewal 0 Static-renewal ❑ Static-renewal
❑ Flow-through ❑ Flow-through 0 Flow-through
Source of Dilution Water
Indicate the source of dilution water.(Check ❑ Laboratory water 0 Laboratory water 0 Laboratory water
one response.)
❑ Receiving water ❑ Receiving water ❑ Receiving water
If laboratory water,specify type.
If receiving water,specify source.
Type of Dilution Water
Indicate the type of dilution water. If salt ❑ Fresh water 0 Fresh water 0 Fresh water
water,specify"natural"or type of artificial
sea salts or brine used. 0 Salt water(specify) ❑ Salt water(specify) ElSalt water(specify)
Percentage Effluent Used
Specify the percentage effluent used for all
concentrations in the test series.
Parameters Tested
Check the parameters tested. 0 pH 0 Ammonia 0 pH ❑ Ammonia 0 pH 0 Ammonia
❑ Salinity 0 Dissolved oxygen 0 Salinity 0 Dissolved oxygen 0 Salinity 0 Dissolved oxygen
❑ Temperature 0 Temperature 0 Temperature
Acute Test Results
Percent survival in 100%effluent
LC50
95%confidence interval % % %
Control percent survival % % %
EPA Form 3510-2A(Revised 3-19) Page 26

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF 001 OMB No.2040-0004
TABLE E.EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample.Copy the table to report additional test results.
Test Number Test Number Test Number
Acute Test Results Continued
Other(describe)
Chronic Test Results
NOEC
IC25 0/0
Control percent survival 0/0
Other(describe)
Quality ControllQuality Assurance
Is reference toxicant data available? ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
Was reference toxicant test within ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes ❑ No
acceptable bounds?
What date was reference toxicant test run
(MM/DD/YYYY)?
Other(describe)
EPA Form 3510-2A(Revised 3-19) Page 27

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
TABLE F.INDUSTRIAL DISCHARGE INFORMATION
Response space is provided for three SIUs.Copy the table to report information for additional SIUs.
SIU 1 SIU 2 SIU 3
Name of SIU Eaton Corporation Nitta Gelatin,USA Unifirst Corporation
Mailing address(street or P.O.box) 2900 Doc Bennett Road 4341 Production Drive 2455 Downing Road
City,state,and ZIP code Fayetteville,NC 28306 Fayetteville,NC 28306 Fayetteville,NC 28312
Description of all industrial processes that affect
Or contribute to the discharge. Manufacture electric motor controls. Extraction of gelatin from edible grade pig Industrial launderers supplying,washing,
skin. and drying uniforms.
List the principal products and raw materials that
affect or contribute to the SIU's discharge. Steel,plated copper bar stock,coiled copper, Edible grade pig skin,aqueous ammonia, Sodium hypochlorite,starch,acetic acid
aluminum wire,tin/lead solder,powder paint caustic,hydrochloric and sulfuric acid hydrogen peroxide,alcohol ethoxylate,
caustic,sodium thiosulfate,sodium
silicate
Indicate the average daily volume of wastewater
discharged by the SIU. 27,000 gpd 235,000 gpd 49,000 gpd
How much of the average daily volume is
attributable to process flow? 9,500 gpd 224,000 gpd 42,800 gpd
How much of the average daily volume is
attributable to non-process flow? 17,500 gpd 11,00o gpd 6,200 gpd
Is the SIU subject to local limits?
❑ Yes ✓❑ No ❑✓ Yes 0 No ✓❑ Yes 0 No
Is the SIU subject to categorical standards?
❑✓ Yes 0 No 0 Yes ❑✓ No 0 Yes ❑✓ No
EPA Form 3510-2A(Revised 3-19) Page 29

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
110000734180 NC0050105 Rockfish Creek WRF OMB No.2040-0004
TABLE F.INDUSTRIAL DISCHARGE INFORMATION
Response space is provided for three Sills.Copy the table to report information for additional SIUs.
SIU 1 SIU 2 SIU 3
Under what categories and subcategories is the
SIU subject'? 433-Metal Finishing 311999-Miscellaneous Food 7218-Industrial launder
Manufacturing
Has the POTW experienced problems(e.g.,
upsets,pass-through interferences)in the past 4.5 ❑ Yes ❑✓ No ❑ Yes ❑✓ No ❑ Yes ❑✓ No
years that are attributable to the SIU?
If yes,describe.
EPA Form 3510-2A(Revised 3-19) Page 30

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EPA Identification Number: NPDES Permit Number: Facility Name: Outfall Number:
110000734180 NC0050105 Rockfish Creek WRF 001
Section 2.Description of Treatment Process
The Rockfish Creek facility is permitted to process 21 million
gallons per day (MGD) of wastewater. The processes consist
of an influent pump station, mechanical bar screens, grit
removal, activated sludge system with nitrification, secondary
clarification, filtration, disinfection and dechlorination using
hypochlorite and sodium bisulfite. Biosolids generated by these
processes are stabilized through aerobic digestion. The
Rockfish Creek biosolids are thickened and recycled through
land application as fertilizer and soil conditioners.
The following treatment components and daily averages are
present at the Rockfish Creek WRF:
Daily
Average
Stream Identification Flow(MGD)
Raw Sewage 17.6
Backwash Return Flow 0.61
Return Activated Sludge 8.07
Aeration Basin Influent 25.67
Aeration Basin Effluent 25.67
Secondary Clarifier Influent 25.67
Filter Influent 17.6
Filter Effluent 17.6
Chlorine Contact Basin 17.6
Outfall Structure Influent 17.6
Outfall Structure Effluent 17.6
Waste Activated Sludge (@1% TS) 0.18
Digested Sludge (©1.5% TS) 0.089
Thickened Digested Biosolids(@4.5%TS) 0.027

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TO AERATION TO AERATION
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FCE FINAL CLARIFIER EFF
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• AOF AVERAGE DAILY FLOW
MGD MILLION GALLONS PER DAY
FILTER EFFL
▪ M MAGMETER DENT ROCKFISH CREEK WATER
C GRINDER RECLAMATION FACILITY
• HAZEN AND SAWYER PROCESS FLOW DIAGRAM
• Environmental Engineers 8 Scientists
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HAZEN AND SAWYER BIOSOLIDS TREATMENT DIAGRAM
Frn ronmeniai Engineers 8 Snenasts

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19 OMB No.2040-0004
110000734180 NC0050105 Rockfish Creek WRF
TABLE F. INDUSTRIAL DISCHARGE INFORMATION Response space is provided for SIUs. Copy the
table to report information for additional SIUs.
SIU 4
Name of SIU
Liquid Environmental Solutions
Mailing address(street or P.O. box)
2990 Ervin Alston Road
City,state,and ZIP code
Fayetteville, NC 28306
Description of all industrial processes that affect or contribute to the discharge.
Process grease trap waste and used cooking oil and resale into the market as commodities.
List the principal products and raw materials that affect or contribute to the SIU's discharge.
Brown and yellow oil,polymer,hydrated lime
Indicate the average daily volume of wastewater discharged by the SIU.
42,500 gpd
How much of the average daily volume is attributable to process flow?
40,000 gpd
How much of the average daily volume is attributable to non-process flow?
2,500 gpd
Is the SIU subject to local limits?
Yes
Is the SIU subject to categorical standards?
No
Under what categories and subcategories is the SIU subject?
4953
Has the POTW experienced problems(e.g.,upsets, pass-through, interferences)in the past 4.5 years that are attributable to the SIU?
No
IF yes,describe?

r
EPA Identification Number NPDES Permit Number Facility Name Outfall Number
110000734180 NC0050105 Rockfish Creek WRF 001
SUMMARY OF EFFLUENT MONITORING FOR WHOLE EFFLUENT TOXICITY SUBMITTED
Date Submitted Summary of Results
Ceriodaphnia/ Fathead Minnow
2/23/2017 Pass
4/27/2017 Pass
8/8/2017 Pass
10/13/2017 Pass/ChV> 18.4
2/12/2018 Pass/ChV> 18.4
5/17/2018 Pass
8/9/2018 Pass
11/8/2018 Pass
2/11/2019 Pass
5/2/2019 Pass
8/7/2019 Pass/ChV> 18.4
11/11/2019 Pass
2/5/2020 Pass
5/5/2020 Pass/ChV> 18.4
8/14/2020 Pass
11/4/2020 Pass
2 3 2021 Pass