NC0063096_Renewal (Application)_20210129

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ROY COOPER 44k--- 1Governor
MICHAEL S.REGAN .ZM� „
Secretory -i,tcrFan�`-
S. DANIEL SMITH NORTH CAROLINA
Director Environmental Quality
January 29, 2021
Town of Holly Springs
Attn: Terry Foster, WRF Operations Manager
128 S Main St
Holly Springs, NC 27540
Subject: Permit Renewal
Application No. NC0063096
Holly Springs WWTP
Wake County
Dear Applicant:
The Water Quality Permitting Section acknowledges the January 29, 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 l
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,
�—/ J ` I
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
`�t�� North Caro ra Departrrert of Er rormer.ts 4.e-* I Dvson of Water Resources
DI -. ReegrRegora nff 139DD Barrett DrveI Rae gh,North Caro:na27609
4: :e". .... /`• 919-791-4200
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January 22, 2021
THE TOWN OF
I—I011Y CERTIFIED MAIL E C E I\f E D
� RETURN RECEIPT REQUESTED
Sj)I1fl ]S Mr. Michael Montebello J A N 2 9 2021
NPDES Permitting Unit Supervisor NCDEQ/DWR/NPDES
1617 Mail Service Center
Raleigh,NC 27699-1617
Subject: NPDES Permit Renewal Request—Town of Holly Springs, #NC0063096
Dear Mr. Montebello:
This serves as a request by the Town of Holly Springs to renew NPDES Permit No.
NC0063096. Enclosed are one signed original and two (2) copies of the permit renewal
package as required. The Town's permit expires July 31, 2021.
As per NCDENR document "DWQ Guidance Regarding the Reduction of Monitoring
Frequencies in NPDES Permits for Exceptionally Performing Facilities" dated October 22,
2012, we respectfully request that the monitoring frequencies for BOD5, TSS,NH3-N,and
Fecal Coliform be reduced from daily to twice per week. The Town of Holly Springs Utley
Creek Water Reclamation Facility is an Exceptionally Performing Facility. For your review,
please see attached document, "Justification for Reduced Monitoring for the Town of Holly
Springs Utley Creek Water Reclamation Facility NC0063096."
In addition, the Town of Holly Springs also requests the following changes be incorporated
into the renewed permit:
1. Removal of additional monitoring requirements for Total Lead. Total Lead
has been less than detection for the entire permit cycle and should no longer
qualify as a reasonable potential concern.
2. Removal of Orthophosphorus monitoring requirement. It is the Town's
position that the Orthophosphorus requirement is redundant because of the
existence of the Total Phosphorus monitoring requirement. The discharge
limitations on both parameters are reasonably proportional to one another,thereby
creating the redundancy. If DEQ determines that Orthophosphorus shall remain a
monitoring requirement, the Town respectfully requests rationale.
3. Monitoring frequency reduction to quarterly for all instream monitoring
requirements at sample locations U,D1, D2, and D3.
P.O.Box 8
128 S.Main Street
Holly Springs,N.C.27540
www.hollyspringsnc.us
[phone]

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l to , The Town of Holly Springs further requests that a prompt initial review of this application
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THE TOWN OF be made to verify that it is complete as submitted and no additional information is needed
Ijlly at this time. Please provide a written response once this review has been completed. A
� brief email to [e-mail] would be ideal.
Springs
mommommummu
The Town of Holly Springs also respectfully requests that an "owner's" draft of the reissued
permit be provided to us prior to public notice for comment so that we may review, and
follow up with your office if we note any items of concern.
If you have questions or need additional information please contact me at [phone] or
via email at [e-mail].
Sincerely,
Terry Foster
Treatment Plant Manager/ORC
Town of Holly Springs NC
CC: Kendra Parrish, Director of Utilities and Infrastructure
Seann Byrd, Interim Water Resources Director 1
P.O.Box 8
128 S.Main Street
Holly Springs,N.C.27540
www.hollyspringsnc.us
[phone]

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0063096 Utley 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
Utley Creek Water Reclamation Facility
Mailing address(street or P.O. box)
PO BOX 8
City or town State ZIP code
o Holly Springs NC 27540
1
vg Contact name(first and last) Title Phone number Email address
Terry Foster WRF Operations Manager [phone] [e-mail]
Location address(street,route number,or other specific identifier) ❑ Same as mailing address
m 150 Treatment Plant Road
U-
City or town State ZIP code
Holly Springs NC 27540
1.2 Is this application for a facility that has yet to commence discharge?❑ Yes 4 See instructions on data submission 0 No RECEIVED
requirements for new dischargers.
1.3 Is applicant different from entity listed under Item 1.1 above? JAN 2 9 2021
❑ Yes ❑ No 4 SKIP to Item 1.4.
Applicant name NCDEQ/DWRJNPDES
Town of Holly Springs
o Applicant address(street or P.O. box)
PO BOX 8
E` City or town State ZIP code
o
Holly Springs NC 27540
Contact name(first and last) Title Phone number Email address
-8_.— Seann Byrd Int Water Resources Director [phone] [e-mail]
< 1.4 Is the applicant the facility's owner,operator, or both?(Check only one response.)
0 Owner ❑ Operator E Both
1.5 To which entity should the NPDES permitting authority send correspondence?(Check only one response.)
❑ Facility 0 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
y number for each.)
Existing Environmental Permits
73 ❑ NPDES(discharges to surface ❑ RCRA(hazardous waste) ❑ UIC(underground injection
c water) control)
E NC0063096
2 ❑ PSD(air emissions) ❑ Nonattainment program(CM) ❑ NESHAPs(CM)
c
ua
a3
.N ❑ Ocean dumping(MPRSA) 0 Dredge or fill(CWA Section 0 Other(specify)
w 404)
EPA Form 3510-2A(Revised 3-19) Page 1

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0063096 Utley 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 0 Own 0 Maintain
Town of Holly 41,000(2020 0 %combined storm and sanitary sewer ❑ Own 0 Maintain
a) Springs Census Estimate ❑ Unknown 0 Own ❑ Maintain
0cn
%separate sanitary sewer ❑ Own IDMaintain
7 v %combined storm and sanitary sewer ❑ Own ❑ Maintain
c ❑ Unknown 0 Own CIMaintain
a.
o %separate sanitary sewer 0 Own 0 Maintain
%combined storm and sanitary sewer 0 Own El Maintain
"' 0 Unknown ElOwn ❑ Maintain
%separate sanitary sewer 0 Own ❑ Maintain
cn %combined storm and sanitary sewer 0 Own ❑ Maintain
c ❑ Unknown ❑ Own 0 Maintain
o Total
d Population 41,000(2020
o Served Census Estimate
Separate Sanitary Sewer System Combined Storm and
Sanitary Sewer
Total percentage of each type of ° °
sewer line(in miles) 100 /0 /0
—' 1.8 Is the treatment works located in Indian Country?
c
o El Yes El No
0
U
R 1.9 Does the facility discharge to a receiving water that flows through Indian Country?
c ❑ Yes 0 No
1.10 Provide design and actual flow rates in the designated spaces. Design Flow Rate
8.o mgd
R
N Annual Average Flow Rates(Actual)
< Two Years Ago Last Year This Year
cci
CO 2.065 mgd 2.169 mgd 2.365 mgd
�LL
d Maximum Daily Flow Rates(Actual)
ca Two Years Ago Last Year This Year
3.789 mgd 4.338 mgd 4.116 mgd
co1.11 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
Combined Sewer 0.
Constructed
o 1- Treated Effluent Untreated Effluent Overflows Bypasses Emergency
Overflows
w
i5 1 0 0 0 0
EPA Form 3510-2A(Revised 3-19) Page 2

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0063096 Utley 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?
❑ Yes ❑✓ No 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 ❑ Intermittent
❑ Continuous
gpd ❑ Intermittent
❑ Continuous
gpd 0 Intermittent
2 1.14 Is wastewater applied to land?
❑ Yes ❑� No 4 SKIP to Item 1.16.
Cu 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
E." Applied (check one)
co
acresgpd ❑ Continuous
a 0 Intermittent
acres d 0 Continuous
o gp ❑ Intermittent
acresgpd 0 Continuous
R ❑ Intermittent
W, 1.16 Is effluent transported to another facility for treatment prior to discharge?
o ❑ 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?
❑ Yes ❑ 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
NC0063096 Utley 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
d Facility name Mailing address(street or P.O. box)
City or town State ZIP code
0
Contact name(first and last) Title
0
Phone number Email address
o NPDES number of receiving facility(if any) ❑ None Average dailyflow rate mgd
Q 9 9
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)?
❑ Yes ❑ No 4 SKIP to Item 1.23.
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
acresgpd ❑ Continuous
❑ Intermittent
0 Continuous
acres gpd 0 Intermittent
acresgpd ❑ Continuous
❑ 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.)
C ❑ Discharges into marine waters(CWA ❑ Water quality related effluent limitation(CWA Section
as Section 301(h)) 302(b)(2))
ID 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?
❑ Yes ❑ No 4SKIP 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
0
Contractor name
(company name)
Mailing address
(street or P.O. box)
City, state,and ZIP
code
Contact name(first and
c0i 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
NC0063096 Utley Creek WRF OMB No.2040-0004
SECTION 2.ADDITIONAL INFORMATION(40 CFR 122.21(j)(1)and(2))
o Outfalls to Waters of the United States
c 2.1 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
0 Yes ❑ 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.
223,000 gpd
Indicate the steps the facility is taking to minimize inflow and infiltration.
-0
The system does not have a serious I&I problem.The Town monitors for any issues through routine maintenance
programs.
2.3 Have you attached a topographic map to this application that contains all the required information?(See instructions for
R specific requirements.)
0
�o ❑✓ Yes ❑ No
E 2.4 Have you attached a process flow diagram or schematic to this application that contains all the required information?
o (See instructions for specific requirements.)
rn
Ey
ElYes ❑ No
2.5 Are improvements to the facility scheduled?
❑ Yes ❑ No 4 SKIP to Section 3.
a
Briefly list and describe the scheduled improvements.
0
1.
d
E
d
2.
E
0
N 3.
d
4.
cn
2 2.6 Provide scheduled or actual dates of completion for improvements.
Scheduled or Actual Dates of Completion for Improvements
E Affected Attainment of
Scheduled Begin End Begin
Outfalls Operational
Improvement Construction Construction Discharge
(from above) (list outfall (MM/DD/YYYY) (MM/DD/YYYY) (MM/DD/YYYY) Level
number) (MM/DD/YYYY)
1.
s
2.
3.
•
4.
2.7 Have appropriate permits/clearances concerning other federal/state requirements been obtained?Briefly explain your
response.
❑ Yes ❑ No ❑ None required or applicable
Explanation:
EPA Form 3510-2A(Revised 3-19) Page 5

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0063096 Utley 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 North Carolina
cn
County Wake
0 City or town Town of Holly Springs
Distance from shore N/A ft. ft. ft.
Depth below surface N/A ft. ft. ft.
Average daily flow rate 2.365 mgd mgd mgd
Latitude 35° 38' 42.5" N
Longitude 78° 51' 7.0" W "
3.2 Do any of the outfalls described under Item 3.1 have seasonal or periodic discharges?
❑ Yes ❑ No 4 SKIP to Item 3.4.
d
3.3 If so, provide the following information for each applicable outfall.
to Outfall Number Outfall Number Outfall Number
Number of times per year
g discharge occurs
a Average duration of each
discharge(specify units)
Average flow of each
discharge mgd mgd mgd
in 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 t pe at each applicable outfall.
0_
Outfall Number Outfall Number Outfall Number
U)
o vi 3 6 Does the treatment works discharge or plan to discharge wastewater to waters of the United States from one or more
• discharge points?
ra
0 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
NC0063096 Utley 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 Utley Creek
Name of watershed, river,
0 or stream system White Oak Creek
Q- U.S.Soil Conservation
w Service 14-digit watershed 03030001-020010
o code
'al
Name of state
management/river basin Cape Fear River Basin 030607
co
U.S. Geological Survey
w 8-digit hydrologic 03030004
C cataloging unit code
Critical low flow(acute) cfs cfs cfs
Critical low flow(chronic) 0.01 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 o01 Outfall Number Outfall Number
Highest Level of 0 Primary 0 Primary 0 Primary
Treatment(check all that 0 Equivalent to 0 Equivalent to 0 Equivalent to
apply per outfall) secondary secondary secondary
El Secondary 0 Secondary El Secondary
0 Advanced 0 Advanced ❑ Advanced
0 Other(specify) 0 Other(specify) ❑ Other(specify)
w
Q Design Removal Rates by 001
0 Outfall
ui
w
in BODs or CBODs 95
c
E
w
ai TSS 90
I-
❑ Not applicable 0 Not applicable ❑ Not applicable
Phosphorus 95 % % %
❑ Not applicable El Not applicable El Not applicable
Nitrogen 95
Other(specify) 0 Not applicable ❑ 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
NC0063096 Utley 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 by
season,describe below.
d
0
O
o Outfall Number 001 Outfall Number Outfall Number
Disinfection type
Ultra-violet
Seasons used
a, All
Dechlorination used? 0 Not applicable ❑ Not applicable ❑ Not applicable
❑ Yes 0 Yes ❑ Yes
❑ No ❑ No ❑ No
3.10 Have you completed monitoring for all Table A parameters and attached the results to the application package?
O 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?
El Yes ❑ 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 $
Number of tests of receiving
water
3.13 Does the treatment works have a design flow greater than or equal to 0.1 mgd?
0 Yes ❑ No 4 SKIP to Item 3.16.
3.14 Does the POTW use chlorine for disinfection, use chlorine elsewhere in the treatment process,or otherwise have
reasonable potential to discharge chlorine in its effluent?
N ❑ Yes 4 Complete Table B,including chlorine. 0 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
CD
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
O applicable. ElNo 4 SKIP to Section 4.
3.17 Have you completed monitoring for all applicable Table C pollutants and attached the results to this application
package?
O 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?
El Yes 0 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
NC0063096 Utley 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?
0 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?
El Yes ❑ No—I Provide results in Table E and SKIP to
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)
11/3/19-Ceriodaphnia dubi(pass)Fathead Minnow(Chv>100%)
11/03/2019 02/3/20-Ceriodaphnia dubi(pass)Fathead Minnow(Chv>100%)
05/4/20-Ceriodaphnia dubi(pass)Fathead Minnow(Chv>100%)
o
08/3/20-Ceriodaphnia dubi(pass)Fathead Minnow(Chv>100%)
w3.22 Regardless of how you provided your WET testing data to the NPDES permitting authority, did any of the tests result in
toxicity?
co
❑ Yes ✓❑ No 4 SKIP to Item 3.26.
1-- 3.23 Describe the cause(s)of the toxicity:
w..
d
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?
❑ 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?
✓❑ Yes ❑ No 4 SKIP to Item 4.7.
d 4.2 Indicate the number of SIUs and NSCIUs that discharge to the POTW.
Number of SIUs Number of NSCIUs
1 1
1 4.3 Does the POTW have an approved pretreatment program?
El Yes ❑ No
2 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
E application or(2)a pretreatment program?
co
cn 0 Yes ❑ No 4 SKIP to Item 4.6.
o 4.5 Identify the title and date of the annual report or pretreatment program referenced in Item 4.4. SKIP to Item 4.7.
�L
z Feb 20,2020-Town of Holly Springs Pretreatment Annual Report
4.6 Have you completed and attached Table F to this application package?
❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 9

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0063096 Utley Creek WRF OMB No.2040-0004
4.7 Does the POTW receive,or has it been notified that it will receive, by truck, rail, or dedicated pipe, any wastes that are
regulated as RCRA hazardous wastes pursuant to 40 CFR 261?
❑ Yes 0 No + 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 El Rail
d ❑ Dedicated pipe ❑ Other(specify)
47.
U
d ❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other(specify)
0
N ❑ Truck ❑ Rail
_ ❑ Dedicated pipe ❑ Other(specify)
-0
is
m
L4.9 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 SKIP to Section 5.
•
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?
as
rn ❑ Yes 0 No 4SKIP to Section 6.
3 5.2 Have you attached a CSO system map to this application?(See instructions for map requirements.)
t6 ❑ Yes ❑ No
5.3 Have you attached a CSO system diagram to this application?(See instructions for diagram requirements.)
o ❑ Yes ❑ No
EPA Form 3510-2A(Revised 3-19) Page 10

EPA Identification Number NPDES Permit Number Facility Name Form Approved 03/05/19
NC0063096 Utley 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
SI- State and ZIP code
w
o County
co
0
Latitude ° °
o ° 0
co Longitude °
11
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 ❑ Yes 0 No ❑ Yes ❑ No ❑ Yes ❑ No
co
c
o CSO flow volume ❑ Yes 0 No ❑ Yes ❑ No ❑ Yes 0 No
CSO pollutant ❑ Yes ❑ No ❑ Yes ❑ No ❑ Yes 0 No
o concentrations •
cn
c.' Receiving water quality ❑ Yes ❑ No 0 Yes ❑ No ❑ Yes 0 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
ki
cu Number of CSO events in events events events
N the past year
(o
cAverage duration per hours hours hours
c event ❑Actual or 0 Estimated 0 Actual or 0 Estimated 0 Actual or El Estimated
d
>
o Average volume per event million gallons million gallons million gallons
`"(.) ❑Actual or❑ 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 ❑Actual or❑ 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
NC0063096 Utley 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 Outfall Number
Receiving water name
Name of watershed/
E.) stream system
d U.S. Soil Conservation 0 Unknown 0 Unknown 0 Unknown
Service 14-digit
co watershed code
> (if known)
a Name of state
w management/river basin
o
u) U.S.Geological Survey 0 Unknown 0 Unknown 0 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 1 Column 2
• Section 1: Basic Application
Information for All Applicants ❑ w/variance request(s) Elw/additional attachments
❑ Section 2:Additional CI wl topographic map El w/process flow diagram
Information El w/additional attachments
❑ w/Table A ❑ w/Table D
❑ Section 3: Information on ❑ w/Table B ❑ w/Table E
c Effluent Discharges
E ❑ w/Table C ❑ w/additional attachments
o Section 4: Industrial ❑ w/SIU and NSCIU attachments ❑ w/Table F
ii 0 Discharges and Hazardous
c Wastes El w/additional attachments
:f.
co
❑ Section 5:Combined Sewer ❑ w/CSO map ❑ w/additional attachments
'E Overflows
c• ❑ w/CSO system diagram
-a Section 6:Checklist and
r
❑ Certification Statement ❑ w/attachments
co
6.2 Certification Statement
0
N
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
Terry Foster WRF Operations Manager
Signature Date signed
//.22/o2/
EPA Form 3510-2A(Revised 3-19) Page 12

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0063096 Utley Creek WRF 001 OMB No.2040-0004
TABLE A. EFFLUENT PARAMETERS FOR ALL POTWS
Maximum Daily Discharge Average Daily Discharge i
Analytical ML or MDL
Pollutant I Value Units Value Units Number of Method, (include units)
Samples
Biochemical oxygen demand
0 ML
o BOD5 or❑CBOD5 10.1 mg/L <2.0 mg/L 748 SM5210B 2 0 MDL
re.ort one
Li ML
Fecal coliform 921 cfu/100 ml 1.143 cfu/100 ml 748 SM9222D 1 cfu/100r El MDL
Design flow rate 7.211 MGD 2.199 MGD 748a
pH(minimum) 7.66 su
pH(maximum) 8.4 su
Temperature(winter) 23 Celsius 18 Celsius 748
Temperature(summer) 29 Celsius 25 Celsius 748
El ML
Total suspended solids(TSS) 3.0 mg/L <2.5 mg/L 748 SM2540D 2.5 mg/L 2 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

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0063096 Utley 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 Number of Method1 (include units)
Samples
o ML
Ammonia(as N) 2.38 mg/L <0.10 mg/L 748 SM 4500NH3F 0.10 mg/L O MDL
Chlorine 0 ML
(total residual,TRC)2 N/A N/A N/A N/A N/A N/A ❑MDL
0 ML
Dissolved oxygen 10.70 mg/L 8.89 mg/L 748 SM 45000G 1.0 mg/L O MDL
0 ML
Nitrate/nitrite 4.49 mg/L 1.00 mg/L 161 EPA 353.2 0.02 mg/L O MDL
0 ML
Kjeldahl nitrogen 3.45 mg/L 1.12 mg/L 161 EPA 351.1 0.10 mg/L 0 MDL
0 ML
Oil and grease <5.0 mg/L <5.0 mg/L 3 EPA 1664B 5.0 mg/L 0 MDL
0 ML
Phosphorus 0.63 mg/L 0.15 mg/L 168 HACH 8190 0.10 mg/L O MDL
Total dissolved solids 506 mg/L 468 mg/L 3 SM 2540C 25 mg/L 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

This page intentionally left blank.

EPA Identification Number NPDES Permit Number Facility Name Outfall Number Form Approved 03/05/19
NC0063096 Utley 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
Value Units Value Units Number of Methods (include units)
Samples
Metals,Cyanide,and Total Phenols
0 ML
Hardness(as CaCO3) 237 mg/L 152 mg/L 36 EPA 200.7 2.0 mg/L 0 MDL
0 ML
Antimony,total recoverable 0.79 ug/L .263 ug/L 3 EPA 200.7 5.0 ug/L 0 MDL
0 ML
Arsenic,total recoverable 0.30 ug/L 0.10 ug/L 3 EPA 200.8 0.10 ug/L 0 MDL
ML
Beryllium,total recoverable ND ug/L ND ug/L 3 EPA 200.7 1.0 ug/L 0 MDL
ML
Cadmium, total recoverable ND ug/L ND ug/L 3 EPA 200.8 0.08 ug/L 0 MDL
0 ML
Chromium, total recoverable 2.5 ug/L 0.83 ug/L 3 EPA 200.7 5.0 ug/L 0 MDL
0 ML
Copper,total recoverable 2.71 ug/L 2.68 ug/L 3 EPA 200.8 0.50 ug/L 0 MDL
0 ML
Lead, total recoverable ND ug/L ND ug/L 38 EPA 200.7 5.0 ug/L 0 MDL
Mercury,total recoverable 1.26 ng/L 0.42 ng/L 3 EPA 1631E 0.5 ng/L 0 MDL
0 ML
Nickel, total recoverable 2.63 ug/L 1.56 ug/L 3 EPA 200.7 5.0 ug/L 0 MDL
ML
Selenium,total recoverable ND ug/L ND ug/L 4 EPA 200.8 0.5 ug/L 0 MDL
0 ML
Silver,total recoverable ND ug/L ND ug/L 3 EPA 200.8 0.4 ug/L 0 MDL
0 ML
Thallium, total recoverable ND ug/L ND ug/L 3 EPA 200.7 10.0 ug/L 0 MDL
0 ML
Zinc, total recoverable 43.0 ug/L 35.5 ug/L 3 EPA 200.7 10.0 ug/L 0 MDL
0 ML
Cyanide ND ug/L ND ug/L 3 SM 4500-CN-E .008 mg/L 0 MDL
ML
Total phenolic compounds 0.022 mg/L .007 mg/L 3 EPA 420.1 0.02 mg/L 0 MDL
Volatile Organic Compounds
0 ML
Acrolein ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
Acrylonitrile ND ug/L ND ug/L 3 EPA 624.1 5.0 ug/L 0 MDL
ML
Benzene ND ug/L ND ug/L 3 EPA 624.1 1.0 ug/L 0 MDL
0 ML
Bromoform ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 0 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
NC0063096 Utley 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 Method"' (include units)
Value Units Value Units Samples
Carbon tetrachloride ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L t7 MDL
0 ML
Chlorobenzene ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
0 ML
Chlorodibromomethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
0 ML
Chloroethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
ML
2-chloroethylvinyl ether ND ug/L ND ug/L 3 EPA 624.1 5.0 ug/L 2 MDL
ML
Chloroform ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 2 MDL
0 ML
Dichlorobromomethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 0 MDL
0 ML
1,1-dichloroethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 2 MDL
0 ML
1,2-dichloroethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 2 MDL
0 ML
trans-1,2-dichloroethylene ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 2 MDL
0 ML
1,1-dichloroethylene ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L MDL
ML
1,2-dichloropropane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 0 MDL
0 ML
1,3-dichloropropylene ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
0 ML
Ethylbenzene ND ug/L ND ug/L 3 EPA 624.1 1.0 ug/L O MDL
0 ML
Methyl bromide ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
Methyl chloride ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
ML
Methylene chloride ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L 1 MDL
ML
1,1,2,2-tetrachloroethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L ES MDL
0 ML
Tetrachloroethylene ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L MDL
0 ML
Toluene ND ug/L ND ug/L 3 EPA 624.1 1.0 ug/L 0 MDL
0 ML
1,1,1-trichloroethane ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L O MDL
0 ML
1,1,2-trichloroethane ND ug/L ND ug/L 3 EPA 624.1 1 2.0 ug/L O 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
NC0063096 Utley 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
Value Units Value Units Number of Method1 (include units)
Samples
o ML
Trichloroethylene ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L E MDL
ML
Vinyl chloride ND ug/L ND ug/L 3 EPA 624.1 2.0 ug/L s MDL
Acid-Extractable Compounds
o ML
p-chloro-m-cresol ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
2-chlorophenol ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
2,4-dichlorophenol ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
2,4-dimethylphenol ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L E MDL
0 ML
4,6-dinitro-o-cresol ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L E MDL
0 ML
2,4-dinitrophenol ND ug/L ND ug/L 3 EPA 625.1 50.0 ug/L 0 MDL
El ML
2-nitrophenol ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
4-nitrophenol ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L E MDL
0 ML
Pentachlorophenol ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L E MDL
0 ML
Phenol ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
2,4,6-trichlorophenol ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L E MDL
Base-Neutral Compounds
0 ML
Acenaphthene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
Acenaphthylene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
Anthracene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
Benzidine ND ug/L ND ug/L 3 EPA 625.1 50 ug/L E MDL
0 ML
Benzo(a)anthracene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
Benzo(a)pyrene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
3,4-benzofluoranthene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L s 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
0MB No.2040-0004
NC0063096 Utley Creek WRF 001
TABLE C.EFFLUENT PARAMETERS FOR SELECTED POTWS
Maximum Daily Discharge Average Daily Discharge
Pollutant Analytical ML or MDL
Value Units Value Units Number of Methods (include units)
Samples
o ML
Benzo(ghi)perylene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
0 ML
Benzo(k)fluoranthene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
Bis(2-chloroethoxy) methane ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L l2 MDL
D ML
Bis(2-chloroethyl)ether ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
0 ML
Bis(2-chloroisopropyl)ether ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
Bis(2-ethylhexyl)phthalate ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
D ML
4-bromophenyl phenyl ether ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 2 MDL
Butyl benzyl phthalate ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
2-chloronaphthalene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 2 MDL
0 ML
4-chlorophenyl phenyl ether ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L l7 MDL
D ML
Chrysene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
di-n-butyl phthalate ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
ML
di-n-octyl phthalate ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L Li MDL
0 ML
Dibenzo(a,h)anthracene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
0 ML
1,2-dichlorobenzene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
ML
1,3-dichlorobenzene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L Li MDL
1,4-dichlorobenzene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L El MDL
0 ML
3,3-dichlorobenzidine ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L O MDL
0 ML
Diethyl phthalate ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 2 MDL
0 ML
Dimethyl phthalate ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
0 ML
2,4-dinitrotoluene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
ML
2,6-dinitrotoluene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L Li 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
NC0063096 Utley 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 Method' (include units)
Value Units Value Units Samples
o ML
1,2-diphenylhydrazine ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L E MDL
0 ML
Fluoranthene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
Fluorene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L p MDL
0 ML
Hexachlorobenzene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L ID MDL
0 ML
Hexachlorobutadiene ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L O MDL
ML
Hexachlorocyclo-pentadiene ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L El MDL
0 ML
Hexachloroethane ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
Indeno(1,2,3-cd)pyrene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
Isophorone ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L 0 MDL
0 ML
Naphthalene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
Nitrobenzene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L El MDL
0 ML
N-nitrosodi-n-propylamine ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L l7 MDL
0 ML
N-nitrosodimethylamine ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 0 MDL
0 ML
N-nitrosodiphenylamine ND ug/L ND ug/L 3 EPA 625.1 10.0 ug/L O MDL
0 ML
Phenanthrene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L O MDL
0 ML
Pyrene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L El MDL
0 ML
1,2,4-trichlorobenzene ND ug/L ND ug/L 3 EPA 625.1 5.0 ug/L 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

This page intentionally left blank.

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NC 0063096
UTLEY CREEK WRF
FLOW DIAGRAM&WATER BALANCE
NPDES FORM 2A ITEM 2.4
2.596 MGD 2.596 MGD 4.097 MGD 4.102 MGD 4.102 MGD 4.102 MGD
INFLUENT PUMP STATIO SECOND
(IPS) ANAEROBIC ANOXIC AERATION ANOXIC REAERATION
•���� ♦ ( � •RAW o•.•o.•. o;.•o.'. o;.• '. °••,.°,•,°...°..
GRIT M Q e{7� o":Cr* O. '°` > TO
WASTEWATER .� �. O. O. O. O,• , C7
����• M M M ..moo°, o .4°0•°.-0.0•? .•4°�. °•°'O I CLARIFIER
°moo.''Tao.'' ° °9ao o°
I I A I T
W I 4\ '— ERECYCLE— E"'
/ I COAGULANT
` CJ FEED FOR TP
LANDFILL 7� REMOVAL
BACKWASH
A 0.005 MGD
4.102 MGD 2.591 MGD 2.586 MGD 2.586 MGD
2.365 MGD
CLARIFICATION UV /
POST / /
FROM _ —
_ — — — FILTRATIONIII JPITII AERATION
REAERATION
U
0.221 MGD I
W RECLAIMED P
WATER PUMP
STATION
0.050 MGD 0.025 MGD 0 C2
1.511 MGD
M SLUDGE PUM > DIGESTERNO.2 CONJUNCTIVE
REUSE SYSTEM
\l/ _L__. _ du
GENERATOR GEN-0 I I SLUDGE PUMP
E.i).)
1000KW 480V
- -E-- -E---E-- -�
GENERATOR GEN-1 I 0.025 MGD I 0
ci,
500KW 480V
4 ', �--�— 1i 0.050 MGD
NOTES: I I W
1. MULTIPLE TRAINS ARE I L — _ _ J SLUDGE
OMITTED FOR CLARITYis•:.."2---'E---<-4- DEWATERIN! \
2. GEN-0 PROVIDES —— — TO McGILL
BACKUP F
SWITCHG ORRMAIN 1.461 MGD DIGESTER NO.1 O ,�� ,
3. GEN-1 PROVIDES RAS 0.040 MGD
BACKUP FOR MCC-I(IPS RETURN \J/
EQUIPMENT) TO IPS FILTRATE
TO IPS

Utley Creek WRF
Flow Schematic Narrative
Sewer flows into our headworks where the flow is measured by a Parshall flume and sampled as
Influent. From there the flow moves through our bar screens and clears the system of any large debris. It
then proceeds through our grit channel where the grit is separated and removed from the system.The
flow continues to the influent pump station (IPS) where sewer, return activated sludge (RAS), backwash
water and filtrate are pump to the oxidation ditches.The oxidation ditches have an anaerobic zone used
primarily for phosphorus removal, anoxic zone for denitrification and aeration zone that does the bulk of
our treatment. From the aeration zone it flows to a secondary anoxic zone to help with denitrification.
The next step in the process is the reaeration tank its purpose is to help with phosphorus removal and to
prevent denitrification in the clarifiers.The flow moves to the clarifiers where the solids settle out and
the RAS gravity flows from the tanks.The RAS flow is returned back to the IPS.The flow leaves the
clarifiers from a weir as clear treated water and is then filtered through the disc filters. It then proceeds
through the UV system to be disinfected. From there it flows to the reuse pump station and to the
effluent cascade.The effluent cascade is where the effluent is aerated,flow metered and effluent
samples are collected.The flow is then discharged to Utley Creek as treated effluent.The plant also has
waste activated sludge (WAS) which is a side stream of the RAS.The WAS flow is pumped to digester 1
or 2 for sludge holding. All digested sludge is pumped through digester 1 to be processed through a
dewatering system.The processed sludge is referred to as cake and is collected in boxes. It is then
picked up by McGill for compost processing at their facility.The filtrate from the dewatering system is
returned back to the IPS.

Annual Monitoring and Pollutant Scan
Permit No. NC0063096 Month: May
Outfall: 001 Year: 2019
Facility Name: Town of Holly Springs ORC: Terry Foster
Date of Sampling: Thursday, May 16, 2019 Phone: [phone]
Analytical Laboratory: Meritech Inc./Pace/HS Emvironmental Compliance Lab
Parameter ' Sample Analytical Quantitation' Sample Units`of Number of.
Type Method Level Result. Measurement: Samples
Ammonia(as N) Composite SM 4500NH3D-2011 0.5 <0.1 mg/L 1
Dissolved oxygen Grab HACH 1036-2011 1 8.81 mg/L 1
Nitrate/Nitrite Composite EPA 353.2 0.1 <0.10 mg/L 1
Total Kjeldahl nitrogen Composite EPA 351.1 0.2 1.09 mg/L 1
Total Phosphorus Composite EPA 200.7 0.1 0.044 mg/L 1
Total dissolved solids Composite SM 2540C 10 447 mg/L 1
Hardness Composite EPA 200.7 2 136 mg CaCO3/L 1
Chlorine(total residual,TRC) Grab NA NA *NA. NA NA
Oil and grease Grab EPA 1664B 5 <5 mg/L 1
Metal(total recoverable), cyanide and total phenols`
Antimony Composite EPA 200.7 0.5 <0.50 ug/L 1
Arsenic Composite EPA 200.8 2.0 <2.0 ug/L 1
Beryllium Composite EPA 200.8 0.5 <0.5 ug/L 1
Cadmium Composite EPA 200.8 0.15 <0.15 ug/L 1
Chromium Composite EPA 200.8 2.0 <2.0 ug/L 1
Copper Composite EPA 200.8 2.0 2.71 ug/L 1
Lead Composite EPA 200.8 0.5 <0.5 ug/L 1
Mercury Grab EPA 1631 0.05 <0.05 ug/L 1
Nickel Composite EPA 200.8 2.0 2.04 ug/L 1
Selenium Composite EPA 200.8 5.0 <1 ug/L 1
Silver Composite EPA 200.8 0.5 <0.5 ug/L 1
Thallium Composite EPA 200.8 0.5 <0.5 ug/L 1
Zinc Composite EPA 200.8 2.0 43.0 ug/L 1
Cyanide Grab EPA 335.4 0.005 <0.005 mg/L 1
Total phenolic compounds Grab EPA 420.1 0.010 <0.010 mg/L 1
Volatile organic compounds
Acrolein Grab EPA 624.1 50 <50 ug/L 1
Acrylonitrile Grab EPA 624.1 10 <10 ug/L 1
Benzene Grab EPA 624.1 1 <1 ug/L 1
Bromoform Grab EPA 624.1 1 <1 ug/L 1
Carbon tetrachloride Grab EPA 624.1 1 <1 ug/L 1
Chlorobenzene Grab EPA 624.1 1 <1 ug/L 1
Chlorodibromomethane Grab EPA 624.1 1 <1 ug/L 1
Chloroethane Grab EPA 624.1 5 <5 ug/L 1
Trichlorofluoromethane Grab EPA 624.1 5 <5 ug/L 1
trans-1,3-dichloropropylene Grab EPA 624.1 1 <1 ug/L 1
2-chloroethylvinyl ether Grab EPA 624.1 5 <5 ug/L 1
Chloroform Grab EPA 624.1 1 <1 ug/L 1
Dichlorobromomethane Grab EPA 624.1 1 <1 ug/L 1
1,1-dichloroethane Grab EPA 624.1 1 <1 ug/L 1
1,2-dichloroethane Grab EPA 624.1 1 <1 ug/L 1
Trans-1,2-dichloroethylene Grab EPA 624.1 1 <1 ug/L 1
* Chlorine not used in effluent for disinfection,we use UV.
Form-DMR- PPA- 1 Page 1

Annual Monitoring and Pollutant Scan r
Permit No. Town of Holly Springs Month: May
Outfall: 001 Year: 2019
Parameter .` Sample`..: :Analytical Quantitation Sample Units of Number:of
;'rY e.,• .: .. gothod , .:;Levol :.;::;::: .::Result Measurement ;Samples ;
Volatile organic compounds(cunt.)..
'1,1-dichloroethylene Grab EPA 624.1 1 <1 ug/L 1
1,2-dichloropropane Grab EPA 624.1 1 <1 ug/L 1
cis-1,3-dichloropropylene Grab EPA 624.1 1 <1 ug/L 1
Ethylbenzene Grab EPA 624.1 1 <1 ug/L 1
Methyl bromide Grab EPA 624.1 5 <5 ug/L 1
Methyl chloride Grab EPA 624.1 5 <5 ug/L 1
Methylene chloride Grab EPA 624.1 1 <1 ug/L 1
1,1,2,2-tetrachloroethane Grab EPA 624.1 1 <1 ug/L 1
Tetrachloroethylene Grab EPA 624.1 1 <1 ug/L 1
Toluene Grab EPA 624.1 1 <1 ug/L 1
1,1,1-trichloroethane Grab EPA 624.1 1 <1 ug/L 1
1,1,2-trichloroethane Grab EPA 624.1 1 <1 ug/•L 1
Trichloroethylene Grab EPA 624.1 1 <1 ug/L 1
Vinyl chloride Grab EPA 624.1 5 <5 ug/L 1
Acid-extractable compounds
4-Chloro-3-methylphenol or
P-chloro-m-cresol Composite EPA 625.1 10 <10 ug/L 1
2-chlorophenol Composite EPA 625,1 10 <10 ug/L 1
2,4-dichlorophenol Composite EPA 625.1 10 <10 ug/L 1
2,4-dimethyiphenol Composite EPA 625.1 10 <10 ug/L 1
4,6-dinitro-2-methylphenol or
4,6-Dinitro-o-cresol Composite EPA 625.1 50 <50 ug/L 1
2,4-dinitrop.henol Composite EPA 625.1 50 <50 ug/L 1
2-nitrophenol Composite EPA 625.1 10 <10 ug/L 1
4-nitrophenol Composite EPA 625.1 50 <50 ug/L 1
Pentachlorophenol Composite EPA 625.1 50 <50 ug/L 1
Phenol Composite EPA 625.1 10 <10 ug/L 1
2,4,6-trichlorophenol Composite EPA 625.1 10 <10 ug/L 1
Base neutral compounds
Acenaphthene Composite EPA 625.1 10 <10 ug/L 1
Acenaphthylene Composite EPA 625.1 10 <10 ug/L 1
Anthracene Composite EPA 625.1 10 <10 ug/L 1
Benzidine Composite EPA 625.1 50 <50 ug/L 1
Benzo(a)anthracene Composite EPA 625.1 10 <10 ug/L 1
Benzo(a)pyrene Composite EPA 625.1 10 <10 ug/L 1
Benzo(b)flourathene or
3,4 benzoflouranthene Composite EPA 625.1 10 <10 ug/L 1
Benzo(ghi)perylene Composite EPA 625.1 10 <10 ug/L 1
Benzyl Butyl phthalate Composite EPA 625,1 10 <10 ug/L 1
Benzo(k)fluoranthene Composite EPA 625.1 10 <10 ug/L 1
Bis(2-chloroethoxy)methane Composite EPA 625.1 10 <10 ug/L 1
Bis(2-chloroethyl) ether Composite EPA 625.1 10 <10 ug/L 1
Bis(2-chloroisopropyl)ether Composite EPA 625.1 10 <10 ug/L 1
Bis(2-ethylhexyl)phthalate Composite EPA 625.1 10 <10 ug/L 1
4-bromophenyl phenyl ether Composite EPA 625.1 10 <10 ug/L 1
2-chloronaphthalene Composite EPA 625.1 10 <10 ug/L 1
4-chlorophenyl phenyl ether Composite EPA 625.1 10 <10 ug/L 1
Form -DMR-PPA- 1 Page 2

' Annual Monitoring and Pollutant Scan
Permit No. Town of Holly Springs Month: May
Outfall: 001 Year: 2019
Parameter Sampled : :,:Analytical Quantitation Sample Units of Number Hof,
Type Method Level Result Measurement ..Samples
Base-neutral compounds (cont.) .. .... . .,
Chryserie Composite EPA 625.1 10 <10 ug/L 1
Di-n-butyl phthalate Composite EPA 625.1 10 <10 ug/L 1
Di-n-octyl phthalate Composite EPA 625.1 10 <10 ug/L 1
Dibenzo(a,h)anthracene Composite EPA 625.1 10 <10 ug/L 1
1,2-dichlorobenzene Composite EPA 625.1 10 <10 ug/L 1
1,3-dichlorobenzene Composite EPA 625.1 10 <10 ug/L 1
1,4-dichlorobenzene Composite EPA 625.1 10 <10 ug/L 1
3,3-dichlorobenzidine Composite EPA 625.1 50 <50 ug/L 1
Diethyl phthalate Composite EPA 625.1 10 <10 ug/L 1
Dimethyl phthalate Composite EPA 625.1 10 <10 ug/L 1
2,4-dinitrotoluene Composite EPA 625.1 10 <10 ug/L 1
2,6-dinitrotoluene Composite EPA 625.1 10 <10 ug/L 1
1,2-diphenylhydrazine Composite EPA 625.1 10 <10 ug/L 1
Fluoranthene Composite EPA 625.1 10 <10 ug/L 1
Fluorene Composite EPA 625.1 10 <10 ug/L 1
Hexachlorobenzene Composite EPA 625.1 10 <10 ug/L 1
Hexachlorobutadiene Composite EPA 625.1 10 <10 ug/L 1
Hexachlorocyclo-pentadiene Composite EPA 625.1 50 <50 ug/L 1
Hexachloroethane Composite EPA 625.1 10 <10 ug/L 1
Indeno(1,2,3-cd)pyrene Composite EPA 625.1 10 <10 ug/L 1
Isophorone Composite EPA 625.1 10 <10 ug/L 1
2-Methylnaphthalene Composite EPA 625.1 10 <10 ug/L 1
Naphthalene Composite EPA 625.1 10 <10 ug/L 1
Nitrobenzene Composite EPA 625.1 10 <10 ug/L 1
N-nitrosodi-n-propylamine Composite EPA 625.1 10 <10 ug/L 1
N-nitrosodimethylamine Composite EPA 625.1 10 <10 ug/L 1
N-nitrosodiphenylamine Composite EPA 625.1 10 <10 ug/L 1
Phenanthrene Composite EPA 625.1 10 <10 ug/L 1
Pyrene Composite EPA 625.1 10 <10 ug/L 1
1,2,4,-trichlorobenzene Composite EPA 625.1 10 <10 ug/L 1
I certify under penalty of law that this document and all attachments were prepared under my direction
and supervision in accordance with a system to design to assure that qualified perdonnel properly
gather and evaluat the information submitted. Based on my inquiry of the person or persons that
manage the system, or those persons directly responsibel 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 fines and imprisonment for knowing violations.
Terry Foster
�d Represe tiv Name
Si nature
Date
Form-DMR-PPA- 1 Page 3

•
Annual Monitoring and Pollutant Scan
Permit No. . NC0063096 Month February
Outfall 001 Yeax 2018
Ethylbenzene Grab EPA 624 1 <1
ug/L 1
Methyl bromide Grab EPA 624 5 <5 ug/L 1
Methyl chloride Grab EPA 624 5 <5 ug/L 1
Methylene chloride Grab EPA 624 1 <1 ug/L 1
1,1,2,2-tetrachloroethane Grab EPA 624 1 <1 ug/L 1
Tetrachloroethylene Grab EPA 624 1 <1 ug/L 1
Toluene Grab EPA 624 1 <1 ug/L 1
1,1,1-trichloroethane Grab EPA 624 1 <1 ug/L 1
1,1,2-trichloroethane Grab EPA 624 1 <1 ug/L 1
Trichloroethylene Grab EPA 624 1 <1 ug/L 1
Vinyl chloride Grab EPA 624 5 <5 ug/L 1
Acid extractable cons ouuds f^`'`�'���/11 o¢�� i ��t�r5 uza�r �i vt••s Mr t,.�xy u 6 fit ' SS
�. :h,.`7 S�„k��•,4C'�?.�w'��'0�&Y' 9;;(i`. ���r�,a'��,1 S � tDf.'�� �I��f k '� f r;.s .YI�1 ti ,� ! 5 � �A -�
+� 1 4-r 'J.r.w4u�tT 11a�,„� L �.,;�(::Y rT ,3fe.�� rtcib>".iF.r� c 11�9?t�1�� �i%ti+a'�,`'�,•S"iq.
4-Chloro-3-methylphenol or
P-chloro-m-cresol Composite EPA 625 10 <10 ug/L 1
2-chlorophenol Composite EPA 625 10 <10 ug/L 1
2,4-dichlorophenol Composite EPA 625 10 I <10 ug/L 1 _
2,4-dimethylphenol Composite EPA 625 10 <10 ug/L 1
4,6-dinitro-2-methylphenol or
4,6-Dinitro-o-cresol Composite EPA 625 50 <50 ug/L 1
2,4-dinitrophenol Composite EPA 625 50 <50 ug/L 1
2-nitrophenol Composite EPA 625 10 <10 ug/L 1
4-nitrophenol Composite EPA 625 50 <50 ug/L 1
Pentachlorophenol Composite EPA 625 50 <50 ug/L 1
Phenol Composite EPA 625 10 <10 ug/L 1
2 4,6 tnchlorophenol Composite EPA 625 10 <10 ug/L 1
ts4'st;:g'IR' 4'.;�'..ySD S J&}pvR�'Qm�Y.�,.'(y(�`,�'' }�y .��jg7�p� ,µ �t4 �mmf,
BaSG�� !.+e iC�,m T��4y.,,��3'+.'.isYA Ski�e'l.i� +^ ' '�4, 4 ,1=. ai �.K�:4kct7F'-ti�:[tv��"R�d.�om+lL;'•'�F4...i,isR; ��..,isi is +V`f f(i=: ✓ff'+.A�r�Hr`' wmgt$m,
Acenaphthene Composite EPA 625 10 <10 ug/L 1
Acenaphthylene Composite EPA 625 10 <10 ug/L 1
Anthracene Composite EPA 625 10 <10 ug/L 1
Benzidine Composite EPA 625 50 <50 ug/L 1
Benzo(a)anthracene Composite EPA 625 10 <10 ug/L 1
Benzo(a)pyrene Composite EPA 625 10 <10 ug/L 1
Benzo(b)flourathene or
3,4 benzoflouranthene Composite EPA 625 10 <10 ug/L 1
Benzo(ghi)perylene 1 Composite EPA 625 10 <10 ug/L 1
Benzyl Butyl phthalate Composite EPA 625 10 <10 ug/L 1
Benzo(k)fluoranthene Composite EPA 625 10 <10 ug/L 1
Bis (2-chloroethoxy)methane Composite EPA 625 10 <10 ug/L 1
Bis(2-chloroethyI) ether Composite EPA 625 10 <10 ug/L 1
Bis (2-chloroisopropyl) ether Composite EPA 625 10 <10 ug/L 1
Bis (2-ethylhexyl)phthalate Composite EPA 625 10 <10 ug/L 1
4-bromophenyl phenyl ether Composite EPA 625 10 <10 ug/L 1
2-chloronaphthalene Composite EPA 625 10 <10 ug/L 1
4 chlorophenyl phenyl ether Composite EPA 625 10 <10 ug/L
1 i�x''xv'�41�+`r i� arr 'r e ��.'i Y i\.i '.zap e,Pt Yvx3i�.+'� H[n`.. •!�-aka:".�.:h.'•' �L..::�,'S,,'r 7:i., g/ 1
�n. -'�� hS'�} S,,,7't,t.�a.� �vj hy�+'j3�C�a'"r��1���:8$A$ ��!a n� S C, -.X.'�1r` Vw�ik�.L
r i�" �;y e ti� 5 ? 't 1 �!Y. YA�da Cy81 j?`p�C A IRELA ,�1�fi PAKi..1@C.94:44i s ACAO;Agii, #� Y. 4:; k ge c�AM 4Y`Fi}�5' ..g* � �*',ti i, _.°qq"31y�pi,,. t le fir '*.
�kfl.it i-rr .a�4 i"I..•��.•ki'm:�. •>�Y c•.ycN,��4 y a. . ST, "`•Y'I..-
Ch sene ��,. l� ��+�: III �,.����, . a ��n�
rY Composite EPA 625 10 <10 ug/L 1
Di-n-butyl phthalate Composite EPA 625 10 <10 ug/L 1
Di-n-octyl phthalate Composite EPA 625 10 <10 ug/L 1
Dibenzo(a,h)anthracene Composite EPA 625 10 <10 ug/L 1
1,2-dichlorobenzene Composite EPA 625 10 <10 ug/L 1
1,3-dichlorobenzene Composite EPA 625 10 <10 ug/L 1
1,4-dichlorobenzene Composite EPA 625 10 <10 ug/L 1
3,3-dichlorobenzidine Composite EPA 625 50 <50 ug/L 1
Form - DMR- PPA-1 Page 2

....
Annual Monitoring and Pollutant Scan
Permit No. NC0063096 Month February
Outfall 001 Year 2018
Facility Name Town of Holly Springs ORC Terry Foster
Date of sampling February 6, 2018 Phone [phone]
Analytical Laboratory Meritech, Inc.
:Ikiiii,$,40111f5-4'4Nilifig,,, I., iallylitVn13.4..;,i,4,..V40,,O4',:14,-,-i:,,;1."‘!'1:*.A.iii, ..6.:eiiirib,Ii,'•!,'::
iggratiVIITAWA.W.s t'.0 ', pi to 1.04.igrailitt4 1..ftl ?WA,
.,..........e. A wn
Ammonia(as N) Composite SM 4500NH3F 0.5 <0.5 mg/L 1
Dissolved oxygen Grab SM 45000G 1 10 mg/L 1
Nitrate/Nitrite Composite EPA 353.2 0.1 4.49 mg/L 1
Total Kjeldahl nitrogen Composite EPA 351.1 0.2 2.34 mg/L 1
Total Phosphorus Composite HACH 8190 0.1 0.2 mg/L 1
Total dissolved solids Composite SM 2540C 10 506 mg/L 1
Hardness Composite EPA 200.7 2 140 mg/L 1
Chlorine (total residual, TRC) Grab NA NA N/A NA NA
Oil and : ease Grab EPA 1664B 5 <5 mg/L 1
tii.0006.UieffiiiiialgiiRgifaie•iifaff.043.1i*.t.iiiiRgA;4'll'iiiiC4AANg' i•''.05 '';,::1- .: :: :•;4 •;::':'`40'.),Q;?.i'',-: •6'-:..:;'::::•'''''-,1': ',':X;
Antimony Composite EPA 200.7 0.5 0.79 ug/L 1
Arsenic Composite EPA 200.8 2.0 <2 ug/L 1
Beryllium Composite EPA 200.8 0.5 <0.5 ug/L 1
Cadmium Composite EPA 200.8 0.15 <0.15 ug/L 1
Chromium Composite EPA 200.8 2.0 2.5 ug/L 1
Copper Composite EPA 200.8 2.0 2.63 ug/L 1
Lead Composite EPA 200.8 0.5 <0.5 ug/L 1
Mercury Grab EPA 1631 1.0 1.26 ug/L 1
Nickel Composite EPA 200.8 2.0 2.63 ug/L 1
Selenium Composite EPA 200.8 5.0 <5 ug/L 1
Silver Composite EPA 200.8 0.5 <0.5 ug/L 1
Thallium Composite EPA 200.8 0.5 <0.5 ug/L 1
Zinc Composite EPA 200.8 2.0 37.4 ug/L 1
Cyanide Grab EPA 335.4 0.005 <0.005 mg/L 1
Total phenolic compounds Grab EPA 420.1 0.010 0.022 mg/L 1
YOTAiliCtiiiiii.Mat:r.WiiiigkstgAtigiTMMANNWOURRAP:afih1$AY,W4,M::' ',,r'•;;',V-''''•:.',•'i:;:•:••''. ., :"‘,.,`,'''.:3,:%:: ',:::.'.,,i','::',
Acrolein Grab EPA 624 50 <50 ug/L 1
Acrylonitrile Grab EPA 624 10 <10 ug/L 1
Benzene Grab EPA 624 1 <1 ug/L 1
Bromoform Grab EPA 624 1 <1 ug/L 1
Carbon tetrachloride Grab EPA 624 1 <1 ug/L 1
Chlorobenzene Grab EPA 624 1 <1 ug/L 1
Chlorodibromomethane Grab EPA 624 1 <1 ug/L 1
Chloroethane Grab EPA 624 5 <5 ug/L 1
Trichlorofluoromethane Grab EPA 624 5 <5 ug/L 1
trans-1,3-dichloropropylene Grab EPA 624 1 • <1 ug/L 1
2-chloroethylviriy1 ether Grab EPA 624 5 <5 ug/L 1
Chloroform Grab EPA 624 1 <1 ug/L 1
_
Dichlorobromomethane Grab EPA 624 1 <1 ug/L 1
1,1-dichloroethane Grab EPA 624 1 <1 ug/L 1
1,2-dichloroethane Grab EPA 624 1 <1 ug/L 1
Trans-1,2-dichloroethylene Grab EPA 624 1 <1 ug/L 1
'?,,••:••,;''': :':::''''':,,- ,, ,, ;`, , ,,.,',..;:i.';-•;•..1,,'',i ,,I,YSatiiii7•.‘:/ktalytteal:! QUantitatiOn";;i", , . • : • , Units of ' '':,;.$,11-ii.(1##KOI•i'
Paraineter'•.. -. ;.,:' •, •,, , .,, ,. ,,,,•,, TYPe.;;'; , ..';,'Method:,, ,;H:Level' ' : ,.. ' ‘, :, Measurement. ', .:; samples;
YO.10a*aiiigit44q5:44.jiil:CtC'.O..fi'tAgl :(;'::[:Ai ;:,:;.'. .';',,,:; '.;`,i.,:,: '.,;•;•.. f::. •, ,:'.,,.,i.:-:',is:•,c'•/,;•.,;i„, ,,',•'. • , ' '' ' ' ,4.
1,1-dichloroethylene Grab EPA 624 1 <1 ug/L I
1,2-dichloropropane Grab EPA 624 1 <1 ug/L 1
cis-1,3-dichloropropylene Grab EPA 624 1 <1 ug/L 1
Form - DMR- PPA-1 Page 1

k
Annual Monitoring and Pollutant Scan
Per
mit No. NC006
3096
Month February
Outfall 001 Year 2018
Diethyl phthalate Composite EPA 625 10 <10 ug/L 1
Dimethyl phthalate Composite EPA 625 10 <10 ug/L 1
2,4-dinitrotoluene Composite EPA 625 10 <10 ug/L 1
2,6-dinitrotoluene Composite EPA 625 10 <10 ug/L 1
1,2-diphenylhydrazine Composite EPA 625 10 <10 ug/L 1
Fluoranthene Composite EPA 625 10 <10 ug/L 1
Fluorene Composite EPA 625 10 <10 ug/L 1
Hexachlorobenzene Composite EPA 625 10 <10 ug/L 1
Hexachlorobutadiene Composite EPA 625 10 <10 ug/L 1
Hexachlorocyclo-pentadiene Composite EPA 625 50 <50 ug/L 1
Hexachloroethane Composite EPA 625 10 <10 ug/L 1
Indeno(1,2,3-cd)pyrene Composite EPA 625 10 <10 ug/L 1
Isophorone Composite EPA 625 10 <10 ug/L 1
2-Methylnaphthalene Composite EPA 625 10 <10 ug/L 1
Naphthalene Composite EPA 625 10 <10 ug/L 1
Nitrobenzene Composite EPA 625 10 <10 ug/L 1
N-nitrosodi-n-propylamine Composite EPA 625 10 <10 ug/L 1
N-nitrosodimethylamine Composite EPA 625 10 <10 ug/L 1
N-nitrosodiphenylamine Composite EPA 625 10 <10 ug/L 1
Phenanthrene Composite EPA 625 10 <10 ug/L 1
Pyrene Composite EPA 625 10 <10 ug/L 1
1,2,4,-trichlorobenzene Composite EPA 625 10 <10 ug/L 1
Comments:When the original composite sample was taken for Bis(2-ethylhexyl) phthalate there was a positive result.After co]
with our contract laboratory it was evident that a new sample jug that we were using could be the source of the positive result.
The sample was reanalzyed by grab sample to eliminate the potential for containmenation from the new sample jug and the re!
were below detection limits. Both results are noted on this report and on our October 2013 DMR. If you have any questions or
please contact our ORC,Terry Foster, at 919-577-1090.
I certify under penalty of law that this document and all attachments were prepared under my direction
and supervision in accordance with a system to design to assure that qualified perdonnel properly
gather and evaluat the information submitted. Based on my inquiry of the person or persons that
manage the system, or those persons directly responsibel 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 fines and imprisonment for knowing violations.
7 r- ,5--- -
Autho ' ed Representative name
Signatur --"_____..
3 / cE /tot"
Date
Form - DMR- PPA-1 Page 3

Annual Monitoring and Pollutant Scan
Permit No. Town of Holly Springs Month: August
Outfall: 001 Year: 2020
Parameter Sample Analytical Quantitation; Sample `.:Unit:of::'
Parameter Code Type
; Method Level Result •Meaauremenx.
Volat•ile organic compounds (cont.).
Ethylbenzene 34371 Grab EPA 624.1 1.0 <1.0 ug/L
Methyl Bromide 34413 Grab EPA 624.1 2.0 <2.0 ug/L
Methyl Chloride 34418 Grab EPA 624.1 2.0 <2.0 ug/L
Methylene Chloride 34423 Grab EPA 624.1 2.0 <2.0 ug/L
1,1,2,2-tetrachloroethane 81549 Grab EPA 624.1 2.0 <2.0 ug/L
Tetrachloroethylene 34475 Grab EPA 624.1 2.0 <2.0 ug/L
Toluene 34010 Grab EPA 624.1 1.0 <1.0 ug/L
1,1,1-trichloroethane 34506 Grab EPA 624.1 2.0 <2.0 ug/L
1,1,2-trichloroethane 34511 Grab EPA 624.1 2.0 <2.0 ug/L
Trichloroethylene 39180 Grab EPA 624.1 2.0 <2.0 ug/L
Vinyl Chloride 39175 Grab EPA 624.1 2.0 <2.0 ug/L
Acid-extractable compounds
P-chloro-m-creso 34452 Composite EPA 625.1 5.0 <5.0 ug/L
2-chlorophenol 34586 Composite EPA 625.1 5.0 <5.0 ug/L
2,4-dichlorophenol 34601 Composite EPA 625.1 5.0 <5.0 ug/L
2,4-dimethylphenol 34606 Composite EPA 625.1 10,0 <10.0 ug/L
4,6-dinitro-o-cresol 34657 Composite EPA 625.1 10.0 <10.0 ug/L
2,4-dinitrophenol 34616 Composite EPA 625.1 50.0 <50.0 ug/L
2-nitrophenol 34591 Composite EPA 625.1 5.0 <5.0 ug/L
4-nitrophenol 34646 Composite EPA 625.1 10.0 <10.0 ug/L
Pentachlorophenol 39032 Composite EPA 625.1 10.0 <10.0 ug/L
Phenol 34694 Composite EPA 625.1 5.0 <5.0 ug/L
2,4,6-trichlorophenol 34621 Composite EPA 625.1 10.0 <10.0 ug/L
Base neutral'compounds ,
Acenaphthene 34205 Composite EPA 625.1 5.0 <5.0 ug/L
Acenaphthylene 34200 Composite EPA 625.1 5.0 <5.0 ug/L
Anthracene CO220 Composite EPA 625.1 5.0 <5.0 ug/L
Benzidine 39120 Composite EPA 625.1 50.0 <50.0 ug/L
Benzo(a)anthracene 34526 Composite EPA 625.1 5.0 <5.0 ug/L
Benzo(a)pyrene 34247 Composite EPA 625.1 5.0 <5.0 ug/L
3,4 benzofluoranthene 34230 Composite EPA 625.1 5.0 <5.0 ug/L
Benzo(ghi)perylene 34521 Composite EPA 625.1 5.0 <5.0 ug/L
Benzo(k)fluoranthene 34242 Composite EPA 625.1 5.0 <5.0 ug/L
Bis(2-chloroethoxy)methane 34278 Composite EPA 625.1 5.0 <5.0 ug/L
Bis(2-chloroethyl) ether 34273 Composite EPA 625.1 5.0 <5.0 ug/L
Bis(2-chloroisopropyl)ether 34283 Composite EPA 625.1 5.0 <5.0 ug/L
Bis(2-ethylhexyl)phthalate 39100 Composite EPA 625.1 5.0 <5.0 ug/L
4-bromophenyl phenyl ether 34636 Composite EPA 625.1 5.0 <5.0 ug/L
Butyl benzyl phthalate 34292 Composite EPA 625.1 5.0 <5.0 ug/L
2-chloronaphthalene 34581 Composite EPA 625.1 5.0 <5.0 ug/L
4-chlorophenyl phenyl ether 34641 Composite EPA 625.1 5.0 <5.0 ug/L
Chrysene 34320 Composite EPA 625.1 5.0 <5.0 ug/L
Di-n-butyl phthalate 39110 Composite EPA 625.1 5.0 <5.0 ug/L
Di-n-octyl phthalate 34596 Composite EPA 625.1 5.0 <5.0 ug/L
Dibenzo(a,h)anthracene 34556 Composite EPA 625.1 5.0 <5.0 ug/L
Form- DMR-PPA- 1 Page 2

Annual Monitoring and Pollutant Scan
Permit No. NC0063096 Month: August
Outfall: 001 Year: 2020
Facility Name: Town of Holly Springs ORC: Terry Foster
Date of Sampling: Phone: [phone]
Analytical Laboratory: PACE
parameter parameter Sample Analytical Quantitation Sample Units of
Code Type: Method Level Result Measurement<
Ammonia(as N) C0610 Composite SM 4500NH3F 0.10 <0.10 mg/L
Chlorine(total residual,TRC) 50060 Grab NA NA NA NA
Dissolved Oxygen 00300 Grab SM 45000G 1 7.97 mg/L
Nitrite plus Nitrate Total(as N) 00630 Composite EPA 353.2 0.02 0.36 mg/L
Total Kjeldahl Nitrogen 00625 Composite EPA 351.2 0.10 0.82 mg/L
Oil and Grease 0056 Grab EPA 1664B 5 <5.00 mg/L
Total Phosphorus C0665 Composite HACH 8190 0.1 0.124 mg/L
Total Dissolved Solids 70295 Composite SM 2540C 25.0 451 mg/L
Hardness 00900 Composite EPA 200.7 2 129 mg/L
Metal;(total'recoverablle) cyanide and total phenols _ , _
Antimony 01097 Composite EPA 200.7 5.0 <5.00 ug/L
Arsenic 01002 Composite EPA 200.8 0.10 0.26 ug/L
Beryllium 01012 Composite EPA 200.7 1.0 <1.0 ug/L
Cadmium 01027 Composite EPA 200.8 0.080 <0.080 ug/L
Chromium 01034 Composite EPA 200.7 5.0 <5.0 ug/L
Copper 01042 Composite EPA 200.8 0.50 1.20 ug/L
Lead 01051 Composite EPA 200.7 5.0 <5.0 ug/L
Mercury COMER Grab EPA 1631E 0.5 <0.50 ug/L
Nickel 01067 Composite EPA 200.7 5.0 <5.00 ug/L
Selenium 01147 Composite EPA 200.8 0.50 <0.50 ug/L
Silver 01077 Composite EPA 200.8 0.40 <0.40 ug/L
Thallium 01059 Composite EPA 200.7 10.0 <10.0 ug/L
Zinc 01092 Composite EPA 200.7 10.0 26.1 ug/L
Cyanide 00720 Grab SM 4500-CN-E 0.008 <0.008 mg/L
Total phenolic compounds 32730 Grab EPA 420.1 0.020 <0.020 mg/L
Volatile organic compounds
Acrylonitrile 34215 Grab EPA 624.1 5.0 <5.0 ug/L
Benzene 34030 Grab EPA 624.1 1.0 <1.0 ug/L
Bromoform 32104 Grab EPA 624.1 2.0 <2.0 ug/L
Carbon Tetrachloride 32102 Grab EPA 624.1 2.0 <2.0 ug/L
Chlorobenzene 34301 Grab EPA 624.1 2.0 <2.0 ug/L
Chlorodibromomethane 34306 Grab EPA 624.1 2.0 <2.0 ug/L
Chloroethane 85811 Grab EPA 624.1 2.0 <2.0 ug/L
2-chloroethyl vinyl ether 34576 Grab EPA 624.1 5.0 <5.0 ug/L
Chloroform 32106 Grab EPA 624.1 2.0 <2.0 ug/L
Dichlorobromomethane 32101 Grab EPA 624.1 2.0 <2.0 ug/L
1,1-dichloroethane 34496 Grab EPA 624.1 2.0 <2.0 ug/L
1,2-dichloroethane 32103 Grab EPA 624.1 2.0 <2.0 ug/L
Trans-1,2-dichloroethylene 34546 Grab EPA 624.1 2.0 <2.0 ug/L
1,1-dichioroethylene 34501 Grab EPA 624.1 2.0 <2.0 ug/L
1,2-dichloropropane 34541 Grab EPA 624.1 2.0 <2.0 ug/L
1,3-dichloropropylene 77163 Grab EPA 624.1 2.0 <2.0 ug/L
Form- DMR- PPA- 1 Page 1

Annual Monitoring and Pollutant Scan
Permit No. Town of Holly Springs Month: August
Outfall: 001 Year: 2020
Parameter Sample Analytical •Quantitaion Sample Units of
Parameter Type Method 'revel ,Result,_ Measurement.
': Code:: ,';
Base-neutral compounds(cont.)
1,2-dichlorobenzene 34536 Composite EPA 625.1 5.0 <5.0 ug/L
1,3-dichlorobenzene 34566 Composite EPA 625.1 5.0 <5.0 ug/L
1,4-dichlorobenzene 34571 Composite EPA 625.1 5.0 <5.0 ug/L
3,3-dichlorobenzidine 34631 Composite EPA 625.1 10.0 <10.0 ug/L
Diethyl phthalate 34336 Composite EPA 625.1 5.0 <5.0 ug/L
Dimethyl phthalate 34341 Composite EPA 625.1 5.0 <5.0 ug/L
2,4-dinitrotoluene 34611 Composite EPA 625.1 5.0 <5.0 ug/L
2,6-dinitrotoluene C0626 Composite EPA 625.1 5.0 <5.0 ug/L
1,2-diphenylhydrazine 34346 Composite EPA 625.1 5.0 <5.0 ug/L
Fluoranthene C0376 Composite EPA 625.1 5.0 <5.0 ug/L
Fluorene 34381 Composite EPA 625.1 5.0 <5.0 ug/L
Hexachlorobenzene C0700 Composite EPA 625.1 5.0 <5.0 ug/L
Hexachlorobutadiene 39702 Composite EPA 625.1 10.0 <10.0 ug/L
Hexachlorocyclo-pentadiene 34386 Composite EPA 625.1 10.0 <10.0 ug/L
Hexachloroethane 34396 Composite EPA 625.1 5.0 <5.0 ug/L
Indeno(1,2,3-cd)pyrene 34403 Composite EPA 625.1 5.0 <5.0 ug/L
Isophorone 34408 Composite EPA 625.1 10.0 <10.0 ug/L
Naphthalene 34696 Composite EPA 625.1 5.0 <5.0 ug/L
Nitrobenzene 34447 Composite EPA 625.1 5.0 <5.0 ug/L
N-nitrosodi-n-propylamine 34428 Composite EPA 625.1 5.0 <5.0 ug/L
N-nitrosodimethylamine 34438 Composite EPA 625.1 5.0 <5.0 ug/L
N-nitrosodiphenylamine 34433 Composite EPA 625.1 10.0 <10.0 ug/L
Phenanthrene 34461 Composite EPA 625.1 5.0 <5.0 ug/L
Pyrene 34469 Composite EPA 625.1 5.0 <5.0 ug/L
1,2,4,-trichlorobenzene 34551 Composite EPA 625.1 5.0 <5.0 ug/L
Sampling should be conducted as specified in 40 CFR Part 136.
I certify under penalty of law that this document and all attachments were prepared under my direction
and supervision in accordance with a system to design to assure that qualified perdonnel properly
gather and evaluat the information submitted. Based on my inquiry of the person or persons that
manage the system, or those persons directly responsibel 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 fines and imprisonment for knowing violations.
Terry Foster
thorized Represen tive Name
•
ignature
Date
Form-DMR-PPA- 1 Page 3

aceAnalytical
www.pacelabs.com Pace Analytical Services,LLC
9800 Kincey Ave. Suite 100
Huntersville,NC 28078
[phone]
ANALYTICAL RESULTS
Project: December 1 /Monthly
Pace Project No.: 92510566
Sample: Effluent Lab ID: 92510566001 Collected: 12/09/20 09:16 Received: 12/09/20 11:59 Matrix: Water
Parameters Results Units Report Limit DF Prepared Analyzed CAS No. Qual
SM4500P-E,Phosphate,Ortho Analytical Method:SM 4500-P E-2011
Pace Analytical Services-Eden
Orthophosphate as P ND mg/L 0.050 1 12/10/20 14:41
200.7 MET ICP Analytical Method:EPA 200.7 Rev 4.4 1994 Preparation Method:EPA 200.7 Rev 4.4 1994
Pace Analytical Services-Asheville
Lead ND ug/L 5.0 1 12/16/20 01:12 12/18/20 21:52 7439-92-1
Hardness,Total(SM 2340B) 132 mg/L 0.66 1 12/16/20 01:12 12/18/20 21:52
200.8 MET ICPMS Analytical Method:EPA 200.8 Rev 5.4 Preparation Method: EPA 200.8 Rev 5.4
Pace Analytical Services-Asheville
Selenium ND ug/L 0.50 1 12/15/20 01:00 12/17/20 20:04 7782-49-2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced,except in full,
Date:01/11/2021 09:55 AM without the written consent of Pace Analytical Services,LLC. Page 4 of 34

The Town of
WHOLLY
Department of Water Quality
SPRINGS
MMP Activities Summary
The Mercury Minimization Plan was developed upon review of data available to assess any potential for
contributions of Mercury by any businesses or"Non-Domestic"dischargers to the sewer system. Data was
reviewed according to the MMP as Submitted on April 24,2018.
Industrial Waste Surveys (IWS)were requested of all industry/businesses as listed in the NC Manufacturers
Registry and,to any utility customer(including residential)that discharges increased volumes in to the sewer.
These were collected as a part of the IWS required of the pretreatment program of the town of Holly Springs.
The UCWRF Environmental Compliance Staff also completed the EPA Dental Amalgam Rule requirements.
All surveys were sent out and completed. Annual inspections are being performed as required of the Sewer Use
Ordinance. Other sources continue to be evaluated for Mercury by Water Resources as they coordinate with
the Engineering Department to survey all potential industries during the plan review stage of new development.
Each potential new business that is zoned industrial or light industrial completes an IWS short form that is
submitted to the Town and kept on file.
The UCWRF request that current and potential industrial users review mercury concentrations in high-volume
process chemicals and demonstrate that the mercury concentrations are below industry average request that
alternative sources for chemicals be explored if the mercury levels are determined to be significantly higher
than would normally be expected. This need for this review is repeated emphasized during the annual
inspection of each of the permitted industrial users.
The evaluation of potential non-domestic sources of mercury to the sewer system will be updated every five
years, as warranted by prior sampling results and any additional new potentially significant sources to the
system determined during the IWS process.
B. ADDITIONAL CONTROL MEASURES
This MMP identifies reasonable and cost-effective control measures to minimize mercury being discharged into
the POTW. Below is a listing of initial BMPs for this POTW.
Pollution Prevention
Substances used at the WWTP continue to be evaluated. Where determined,to contain mercury or mercury-
based compounds, these chemicals will be evaluated for and substituted where possible with non-mercury-
containing substances.
P.O. Box 8 • 150 Treatment Plant Rd • Holly Springs, NC 27540 • Tel. [phone] • Fax. [phone]
Debra.Batten(c�hollyspringsnc.us • www.hollyspringsnc.us

_ y
V
Housekeeping, Spill Control and Collection, and Education
The UCWRF has procedures to minimize the possibility of any spill or release at the WWTP involving mercury
containing substances. UCWRF disposes of mercury lamps at the South Wake Landfill at their hazardous waste
area. The TORS Water Resources switched from metal halide bulbs to LED bulbs at all facilities within the
UCWRF and continue to work on this replacement Town wide.
Public Outreach
UCWRF has made available educational information regarding sources of household mercury and appropriate
use/disposal practices annually at Holly Fest. In 2020 the event had to be cancelled due to COVID 19
restrictions. Information has also been highlighted on the Town's website at www.hollyspringsnc.us by
providing a link to "Earth911". in an outreach to the Town of Holly Springs' customers. The UCWRF will
also facilitate public awareness regarding collection points for all waste by providing a link to South Wake
Landfill which references proper disposal for all hazardous waste.
Laboratory Practice
The Town of Holly Springs Water Resources operates an Environmental Compliance Laboratory for purposes
of complying with state and federal monitoring and sampling requirements. The laboratory is a potential source
of small quantities of mercury-containing compounds. Laboratory employees are trained in the proper handling
and disposal of these materials. The laboratories mercury thermometers have been replaced with non-mercury
thermometers, whenever practical. The Environmental Compliance Laboratory has also contracted
Environmental Marketing Services, LLC,to remove any hazardous waste Mercury or otherwise for proper
disposal as classified.
C. TRACKING AND MONITORING
In order to assess the implementation of the control measures,the UCWRF proceeded to undertake the
following after the first full year that this MMP was implemented:
• Current industrial users are surveyed annually during the onsite inspection. Others including all non-domestic
users are surveyed every 5 years. Also, as a part of Community and Business Development a"short"IWS
survey is completed upon applying for permits providing means of tracking and determination of monitoring
needed of all non-domestic users within the Town of Holly Springs.
• Implementation of the programs outlined above have been completed.
• Significant Industrial Users are required to monitor annualy as part of their IU permits, and the Long-Term
Monitoring Plan. More frequently monitoring is requested as warranted.
• Currently the Influent and Effluent are being monitored annually as the Priority Pollutant Analysis(PPA)a
written in our NPDES Permit and the Influent as part of the Long-Term Monitoring Plan. Both locations are
now being monitored at Low Levels.
Having a baseline of influent and effluent at comparable mercury levels has assisted in identifying any trends in
mercury contributions from domestic and non-domestic users of the sewer system.
P.O. Box 8 • 150 Treatment Plant Rd • Holly Springs, NC 27540 • Tel. [phone] • Fax. [phone]
Debra.Batten(c�hollyspringsnc.us • www.hollyspringsnc.us

All SIU's were required to monitor and report low-level Hg as part of their PPA Review of the data and
partnership with the IU's was critical in location of a significant source of mercury at one of our permitted
industries and the data shows that a change in chemicals used in their process have lowered the mercury to
levels well below what they were.
The Mercury Minimization Plan has been successful for The Town of Holly in lowering the mercury
concentrations coming into the facility. At the beginning of the MMP the concentrations at the Influent were
being measure MDL of<0.0002 mg/L (<200 ng/L). In October 2018, the Low-Level Mercury Method 1631
was implemented at the Influent. What is now coming in to the headworks is confirmed to be much less than
could be previously confirmed with the method used with reported with concentrations at the highest of 22.6
ng/L and as low as 2.86 ng/L since 10/2018 to present. Our effluent has been successful to discharging mercury
levels at the effluent during that same time frame with all samples reported at <0.50 ng/L.
SECTION IV —IMPLEMENTATION OF CONTROL MEASURES
The UCWRF was successful in implementation of control measures summarized in Section III over the permit
term and will continue update this MMP as warranted.
P.O. Box 8 • 150 Treatment Plant Rd • Holly Springs, NC 27540 • Tel. [phone] • Fax. [phone]
Debra.Batten(a�hollyspringsnc.us • www.hollyspringsnc.us

Date Influent(mg/L) Influent ng/L Effluent (ng/L) Seqirus(ng/L) SWLF(mg/L)
1/25/2017 26
2/17/2017 15.6
3/14/2017 <5.0
3/21/2017 <0.0002(<200 ng/L)
4/3/2017 <5.0
4/17/2017 10.9
5/8/2017 6.68
6/13/2017 270
6/21/2017 <0.0002(<200 ng/L) 3.7
7/11/2017 <0.0002(<200 ng/L) 5.4 136
8/8/2017 108
9/6/2017 42.1
10/9/2017 4.44
10/11/2017 197
11/8/2017 2400
12/5/2017 82.6
12/20/2017 <0.0002(<200 ng/L)
1/8/2018 138
2/6/2018 <0.0002(<200 ng/L) 1.26 120
3/6/2018 28.8
4/10/2018 9.23
4/11/2018 10.8
5/9/2018 <0.0002(<200 ng/L) 16.6
5/23/2018 <0.0002(<200 ng/L)
6/6/2018 <0.0002(<200 ng/L) 12.5
7/11/2018 23.1
8/14/2018 <0.0002(<200 ng/L) 13.8
10/3/2018 7.24
10/18/2018 22.6 <0.50 45.2
11/9/2018 4.4
12/17/2018 9.1
1/9/2019 13.8 150
2/13/2019 4.35
5/12/2019 3.38
5/16/2019 2.86 <0.50
6/4/2019 7.77
7/16/2019 10.5
8/12/2019 3.9
9/9/2019 8.86
10/9/2019 2.14
11/28/2019 1.1
12/13/2019 1.44
1/14/2020 3.3
2/3/2020 2.29
3/10/2020 1.67
4/9/2020 4.38
5/19/2020 2.8
6/8/2020 2.63
7/3/2020
7/8/2020 2.14
8/3/2020 9.05 <0.50
8/11/2020 <2.5
9/9/2020 <5.0
11/24/2020 <0.50

Justification for Reduction of Monitoring
Town of Holly Springs
Utley Creek Water Reclamation Facility
NC0063096
As per NCDENR's document "DWQ Guidance Regarding the Reduction of Monitoring Frequencies in NPDES Permits
for Exceptionally Performing Facilities" dated October 22, 2012, we respectfully request that the monitoring frequencies
for BOD5, TSS, NH3-N, and Fecal Coliform be continued at the recommended twice per week minimum.
The Utley Creek Water Reclamation Facility is an Exceptionally Performing Facility and has demonstrated consistent, long-
term treatment performance at levels far below effluent limitations (<50%) and should be considered for a reduction in
monitoring from existing permit frequencies to a 2/week minimum frequency for BOD5, TSS, NH3-N, and Fecal Coliform.
Our facility meets all of the approval criteria for this request as outlined in the document:
• The facility has not experienced a civil penalty assessment for permit limit violations for each target parameter
during the previous three years.
• Neither the permittee, nor any of its employees, have been convicted of criminal violations of the Clean Water Act
within the previous five years.
• The facility is not currently under a SOC for target parameter effluent limit noncompliance.
• The facility is not on EPA's Quarterly Noncompliance Report for target parameter limit violations.
• For BOD5, TSS, NH3-N, and Fecal Coliform, the three-year arithmetic mean of effluent data is less than 50% of
the lowest monthly average limit.
Parameter 3-year arithmetic Lowest 3-year mean = % of Less than 50%
mean Monthly Av. Monthly Av. Limit
Limit
BODs 0.14 (<2.00 mg/L) 5.0 mg/L 2.8 % YES
•
TSS 0.01 (<2.50 mg/L) 30.0 mg/L 0.033 % YES
NH3-N 0.02 (< 0.10 mg/L) 1.0 mg/L 2 % YES
Parameter 3-year geometric r Monthly Av. 3-year geo. mean = Less than 50%
mean Limit (Lowest) % of Monthly Av.
Limit
Fecal 1.14 cfu/100m 200 0.57 % !, YES

w 1
• None of the daily sampling results over the 3-year review period exceeded 200%of the monthly average limit for BOD5
(Summer 10.0 mg/L or Winter 20.0 mg/L)
• None of the daily sampling results over the 3-year review period exceeded 200% of the monthly average limit for TSS
of 60 mg/L
• None of the daily sampling results over the 3-year review period exceeded 200% of the monthly average limit for NH3-
N (Summer 1.0 mg/L or Winter 4.0 mg/L)
• During the 3-year review period, no BOD data exceeded the monthly average limit of 5.0 mg/L during the summer and
no BOD data exceeded the monthly average limit of 10.0 mg/L during the winter.
• Coliform: 200% of weekly average limit of 400 cfu/100 ml. equals 800 cfu/100 mLs
• TSS: 200%of monthly average limit of 30 mg/L equals 60 mg/L. During the 3-year review period, no sampling resulted
with data exceeding 60 mg/L.
• Ammonia as N: 200% of summer monthly average limit of 1.0 mg/L equals 2.0 mg/L NH3-N: 200% of Winter monthly
average limit of 2.0 mg/L equals 4.0 mg/L.
• No more than 1 daily sampling results over the 3-year review period exceeded 200% of the monthly average limit for
Fecal Coliform.
• Fecal During the 3-year review period, only 1 data points exceeded 800 cfu/100 mLs the value was 921 cfu/100 mL on
August 13,2019
• For the target limits for the parameters BOD,TSS, NH3-N, and Fecal Coliform ,the facility has not had any non-monthly
average limit violations during the previous year.
• Reduced effluent monitoring will not impair assessment of sensitive downstream uses, such as endangering species.
All of the above referenced data has been previously submitted to NCDENR-DWQ as required via monthly DMRs.
However, The Town of Holly Springs has submitted detailed data summaries. If you have questions or need additional
information please contact me at(919) 577-1090, or via email at [e-mail].

Justification for Reduction of Additional Monitoring
Town of Holly Springs
Utley Creek Water Reclamation Facility
NCOO63096
The Utley Creek Water Reclamation Facility is an Exceptionally Performing Facility and has demonstrated consistent, long-
term treatment performance at levels far below effluent limitations (<50%) and should be considered for a removal of
monitoring from existing permit frequencies. The facility has not experienced a civil penalty assessment for permit limit
violations for each target parameter during the previous three years.
• Neither the permittee, nor any of its employees, have been convicted of criminal violations of the Clean Water Act
within the previous five years.
• The facility is not currently under a SOC for target parameter effluent limit noncompliance.
• The facility is not on EPA's Quarterly Noncompliance Report for target parameter limit violations.
• For Total Phosphorus, Ortho Phosphorus and Total Lead the three-year arithmetic mean of effluent data is less
than 50% of the lowest monthly average limit.
Parameter 3-year arithmetic Lowest 3-year mean = % of Less than 50%
mean Monthly Av. Monthly Av. Limit
Limit
Total Phosphorus 0.131 mg/L 0.500 26.2 % YES
Ortho Phosphorus 0.084 mg/L 0.27 31.1 % YES
Total Lead ND (<5.00 ug/L) 11.1 100 YES
• During the 3-year review period only 1 sample result exceeded the monthly average limit for Total Phosphorus of 0.500
mg/ that sample was collected on 06/13/2018 at 0.613 mg/L. At no time during the review period that the monthly
average limit was exceeded.
• During the 3-year review period only 3 sample results exceeded the monthly average limit for Ortho Phosphorus of
0.27 mg/those samples were collected on 04/18/2018 at 0.423 mg/L, 06/06/2018 at 0.317 and 06/15/2018 at 0.366.
At no time during the review period that the monthly average limit was exceeded.
• During the 3-year review period no sample results exceeded the monthly average limit for Total Lead of 11.1 ug/ At
no time during the review period were the monthly average limit of 11.1 ug/L or the daily maximum limit of 285 ug/L
exceeded.
• Total Phosphorus, ortho-Phosphorus, and Total Lead , the facility has not had any non-monthly average limit violations
during the previous year.
• Reduced effluent monitoring will not impair assessment of sensitive downstream uses, such as endangering species.
All of the above referenced data has been previously submitted to NCDENR-DWQ as required via monthly DMRs.
However, The Town of Holly Springs has submitted detailed data summaries. If you have questions or need additional
information please contact me at(919) 577-1090, or via email at [e-mail].