NC0021121_Renewal Application_20180824

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ROY COOPER NORTH CAROLINA
Governor Environmental Quality
MICHAEL S.BEGAN
Secretmv
LINDA CULPEPPER
Interim Director
August 27, 2018
Chris Marion, ORC
City of Mount Airy
300 S Main St
Mount Airy, NC 27030
Subject: Permit Renewal
Application No. NC0021121
Mount Airy WWTP
Surly County
Dear Applicant:
The Water Quality Permitting Section acknowledges the August 24, 2018 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. 150B-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,
3.1ke,Ae.LAk
Wren Thedford
Administrative Assistant
Water Quality Permitting Section
cc: Central Files w/application
ec: WQPS Laserfiche File w/application
DECO
North Carolina Department of Environmental Quality I Division of Water Resources
1617 Mail Service Center I Raleigh,North Carolina 27699-1617
919-807-6300

•
P.O.Box 70
• Mount Airy,N.C.27030
Phone:[phone]
• Fax:[phone]
City of Mt Airy WWII'
August 22, 2018
Ms. Wren Thedford
NC DEQ/DWR/NPDES
1617 Mail Service Center
Raleigh,N.C. 27699-1617
Subject: NPDES Permit NC 0021121 Renewal
Dear Ms. Thedford,
The City of Mount Airy is requesting renewal of NPDES Permit NC 0021121 that
expires February 28, 2019. Enclosed please find the original renewal packet. The
packet includes the application, supplemental application information for part D and
E, sludge management plan, and a letter from our City Manager requesting that I be
the duly authorized representative for the City of Mount Airy Wastewater Treatment
Plant. The City developed a Mercury Minimization Plan in January 2015. A
summary of MMP activities is available at your request. As you will notice, four
parameters were not included on the Pollutant Scan in October 2015. The parameters
are Antimony, Beryllium, Thallium, and total phenolic compounds. These
parameters will be analyzed in the near future. Once complete, I will forward the
necessary forms and results to you. If you have any questions or require further
information, please contact me at 336-786-3597.
Sincerely,
ma,,,,„„
Chris Marion Dp
WWTP ORC
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Marion, Chris
From: Weaver, Charles <[e-mail]>
Sent: Wednesday, August 22, 2018 10:38 AM
To: Marion, Chris
Cc: Grzyb, Julie
Subject: RE: [External] RE:WWTP renewal checklists/ Mount Airy NC0021121
Chris—if you have an existing MMP, reference it in your cover letter. You can send the permit writer a copy
electronically if we need to review it.
Regarding the 4 missed parameters:
Yes—do your own analyses and send us the results when you receive them.
Don't miss the submittal deadline for your renewal application. Go ahead and send what you have, and note in your
cover letter what items will be submitted later.
CHW
From: Marion, Chris [mailto:[e-mail]]
Sent:Wednesday, August 22, 2018 10:22 AM
To:Weaver, Charles<[e-mail]>
Subject: [External] RE: WWTP renewal checklists
CAUTION: External email. Do not click links or open attachments unless verified.Send all suspicious email as an attachment to
Ok.Thanks
Is a mercury minimization plan summary required?Also on my October 2015 PPA four parameters were not analyzed.
They were antimony, beryllium,thallium, and total phenolic compounds. Can I collect and analyze and send the results
when I receive them?
Chris Marion
WWTP Supervisor
City of Mount Airy
P.O Box 70
Mount Airy, NC 27030
Phone: [phone]
Fax: [phone]
Email: cmarionranountairy.org
From: Weaver, Charles [mailto:charles.weaverCancdenr.qov
]
Sent: Wednesday, August 22, 2018 10:09 AM
To: Marion, Chris
Subject: WWTP renewal checklists
Send the package to Mrs.Wren Thedford. No need for any copies—one original will do.
1

CITY OF MOUNT AIRY
P.O BOX 70
MOUNT AIRY, NC 27030
August 21, 2018
Mrs. Linda Culpepper
NC DEQ/DWR Director(Interim)
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Delegation of Signatory Authority for the
City of Mount Airy WWTP
(NPDES Permit#NC002 11121)
Suny County
Dear Mrs. Culpepper,
In accordance with the City of Mount Airy's NPDES Permit#NC0021121 Part II, Section
B, Item 11, a,b,c, and d, the principal executive officer for the City may designate a duly
authorized representative to sign all applications, reports, or information submitted to the
Permit Issuing Authority. Therefore, I hereby designate the City's Operator in
Responsible Charge of the wastewater treatment plant with the authority to sign all
required documents. Currently, the Operator in Responsible Charge is Mr. Christopher S.
Marion.
Should you have any questions or should you need any additional information, please
contact me at [phone],
Sincerely,
\64A-14-4A-4—'
Barbara A. Jones
City Manager
City of Mount Airy

CITY OF MOUNT AIRY WASTEWATER TREATMENT PLANT
NARRATIVE OF THE SLUDGE MANAGEMENT PLAN
The City has two sludge holding tanks each one has a capacity of 650,000 gallons. The
sludge is held in the tanks from 30 to 60 days. The sludge is then pressed to achieve a
cake of approximately 20% solids. The solids are then hauled and disposed of in the
Surry County RCRA Sub-Title D lined landfill.

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
FORM
2A NPDES FORM 2A APPLICATION OVERVIEW
NPDES
APPLICATION OVERVIEW
Form 2A has been developed in a modular format and consists of a "Basic Application Information" packet
and a "Supplemental Application Information" packet. The Basic Application Information packet is divided
into two parts. All applicants must complete Parts A and C. Applicants with a design flow greater than or
equal to 0.1 mgd must also complete Part B. Some applicants must also complete the Supplemental
Application Information packet. The following items explain which parts of Form 2A you must complete.
BASIC APPLICATION INFORMATION:
A. Basic Application Information for all Applicants. All applicants must complete questions A.1 through A.8. A treatment works
that discharges effluent to surface waters of the United States must also answer questions A.9 through A.12.
B. Additional Application Information for Applicants with a Design Flow>_0.1 mgd. All treatment works that have design flows
greater than or equal to 0.1 million gallons per day must complete questions B.1 through B.6.
C. Certification. All applicants must complete Part C(Certification).
SUPPLEMENTAL APPLICATION INFORMATION:
D. Expanded Effluent Testing Data. A treatment works that discharges effluent to surface waters of the United States and meets
one or more of the following criteria must complete Part D(Expanded Effluent Testing Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program(or has one in place), or
3. Is otherwise required by the permitting authority to provide the information.
E. Toxicity Testing Data. A treatment works that meets one or more of the following criteria must complete Part E(Toxicity Testing
Data):
1. Has a design flow rate greater than or equal to 1 mgd,
2. Is required to have a pretreatment program(or has one in place),or
3. Is otherwise required by the permitting authority to submit results of toxicity testing.
F. Industrial User Discharges and RCRA/CERCLA Wastes. A treatment works that accepts process wastewater from any
significant industrial users(SIUs)or receives RCRA or CERCLA wastes must complete Part F(Industrial User Discharges
and RCRA/CERCLA Wastes). SIUs are defined as:
1. All industrial users subject to Categorical Pretreatment Standards under 40 Code of Federal Regulations(CFR)403.6 and
40 CFR Chapter I, Subchapter N(see instructions); and
2. Any other industrial user that:
a. Discharges an average of 25,000 gallons per day or more of process wastewater to the treatment works(with certain
exclusions); or
b. Contributes a process wastestream that makes up 5 percent or more of the average dry weather hydraulic or organic
capacity of the treatment plant; or
c. Is designated as an SIU by the control authority.
G. Combined Sewer Systems. A treatment works that has a combined sewer system must complete Part G(Combined Sewer
Systems).
ALL APPLICANTS MUST COMPLETE PART C (CERTIFICATION)
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 1 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
BASIC APPLICATION INFORMATION
PART A. BASIC APPLICATION INFORMATION FOR ALL APPLICANTS:
All treatment works must complete questions A.1 through A.8 of this Basic Application Information Packet.
A.1. Facility Information.
Facility Name Mount Airy WWTP
Mailing Address P.O Box 70
Mount Airy,NC 27030
Contact Person Chris Marion
Title Operator in Responsible Charge(ORC)
Telephone Number (3361.786-3597
Facility Address 1750 Andy Griffith Parkway South
(not P.O.Box) Mount Airy,NC 27030
A.2. Applicant Information. If the applicant is different from the above,provide the following:
Applicant Name City of Mount Airy
Mailing Address P.O Box 70
Mount Airy,NC 27030
Contact Person Chris Marion
Title Operator in Responsible Charge(ORC)
Telephone Number 1336)786-3597
Is the applicant the owner or operator(or both)of the treatment works?
® owner 0 operator
Indicate whether correspondence regarding this permit should be directed to the facility or the applicant.
® facility 0 applicant
A.3. Existing Environmental Permits. Provide the permit number of any existing environmental permits that have been issued to the treatment works
(include state-issued permits).
NPDES NC0021121 PSD
UIC Other NCDAQ Air Permit#09106R03
RCRA _ Other
A.4. Collection System Information. Provide information on municipalities and areas served by the facility. Provide the name and population of each
entity and, if known,provide information on the type of collection system(combined vs.separate)and its ownership(municipal,private,etc.).
Name Population Served Type of Collection System Ownership
City of Mount Airy 10347 Separate Municipal
Total population served 10347
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 2 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
A.5. Indian Country.
Y
a. Is the treatment works located in Indian Country?
❑ Yes Z No
b. Does the treatment works discharge to a receiving water that is either in Indian Country or that is upstream from(and eventually flows
through)Indian Country?
❑ Yes ® No
A.6. Flow. Indicate the design flow rate of the treatment plant(i.e.,the wastewater flow rate that the plant was built to handle). Also provide the
average daily flow rate and maximum daily flow rate for each of the last three years. Each year's data must be based on a 12-month time period
with the 12th month of"this year"occurring no more than three months prior to this application submittal.
a. Design flow rate 7.0 mgd
Two Years Aqo Last Year This Year
b. Annual average daily flow rate 1.599 1.555 1.442
c. Maximum daily flow rate 6.35 8.14 10.28
A.7. Collection System. Indicate the type(s)of collection system(s)used by the treatment plant. Check all that apply. Also estimate the percent
contribution(by miles)of each.
Separate sanitary sewer 100
❑ Combined storm and sanitary sewer
A.S. Discharges and Other Disposal Methods.
a. Does the treatment works discharge effluent to waters of the U.S.? ® Yes ❑ No
If yes,list how many of each of the following types of discharge points the treatment works uses:
i. Discharges of treated effluent 1
ii. Discharges of untreated or partially treated effluent
iii. Combined sewer overflow points
iv. Constructed emergency overflows(prior to the headworks)
v. Other _
b. Does the treatment works discharge effluent to basins,ponds,or other surface impoundments
that do not have outlets for discharge to waters of the U.S.? 0 Yes ® No
If yes,provide the following for each surface impoundment
Location:
Annual average daily volume discharge to surface impoundment(s) mgd
Is discharge ❑ continuous or ❑ intermittent?
c. Does the treatment works land-apply treated wastewater? ❑ Yes ❑ No
If yes,provide the following for each land application site:
Location:
Number of acres:
Annual average daily volume applied to site: mgd
Is land application ❑ continuous or 0 intermittent?
d. Does the treatment works discharge or transport treated or untreated wastewater to another
treatment works? ❑ Yes ® No
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 3 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
If yes,describe the mean(s)by which the wastewater from the treatment works is discharged or transported to the other treatment works
(e.g.,tank truck,pipe).
If transport is by a party other than the applicant,provide:
Transporter Name
Mailing Address
Contact Person
Title
Telephone Number L____L,___
For each treatment works that receives this discharge,provide the following:
Name
Mailing Address
Contact Person
Title
Telephone Number ( )
If known, provide the NPDES permit number of the treatment works that receives this discharge
Provide the average daily flow rate from the treatment works into the receiving facility. mgd
e. Does the treatment works discharge or dispose of its wastewater in a manner not included
in A.8.through A.8.d above(e.g.,underground percolation,well injection): 0 Yes ® No
If yes,provide the following for each disposal method:
Description of method(including location and size of site(s)if applicable):
Annual daily volume disposed by this method:
Is disposal through this method 0 continuous or 0 intermittent?
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 4 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
WASTEWATER DISCHARGES:
If you answered"Yes"to question A.8.a,complete questions A.9 through A.12 once for each outfall(including bypass points)through
which effluent is discharged. Do not include information on combined sewer overflows in this section. If you answered"No"to question
A.8.a,go to Part B,"Additional Application Information for Applicants with a Design Flow Greater than or Equal to 0.1 mgd."
A.9. Description of Outfall.
a. Outfall number 001
b. Location Mount Airy 27030
(City or town,if applicable) (Zip Code)
Surry NC
(County) (State)
36 Deq 28 Min 10 Sec 80 Deq 36Min 00 Sec
(Latitude) (Longitude)
c. Distance from shore(if applicable) N/A ft.
d. Depth below surface(if applicable) N/A ft.
e. Average daily flow rate 1.442 mgd
f. Does this outfall have either an intermittent or a periodic discharge? ❑ Yes ® No (go to A.9.g.)
If yes,provide the following information:
Number f times per year discharge occurs:
Average duration of each discharge:
Average flow per discharge: mgd
Months in which discharge occurs:
g. Is outfall equipped with a diffuser? ❑ Yes ® No
A.10. Description of Receiving Waters.
a Name of receiving water Ararat River
b. Name of watershed(if known)
United States Soil Conservation Service 14-digit watershed code(if known):
c. Name of State Management/River Basin(if known):Yadkin Pee-Dee
United States Geological Survey 8-digit hydrologic cataloging unit code(if known):
d. Critical low flow of receiving stream(if applicable)
acute cfs chronic cfs
e. Total hardness of receiving stream at critical low flow(if applicable): _ mg/I of CaCO3
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 5 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
A.11. Description of Treatment
a. What level of treatment are provided? Check all that apply.
® Primary ❑ Secondary
E Advanced ❑ Other. Describe:
b. Indicate the following removal rates(as applicable):
Design BOD5 removal or Design CBOD5 removal 85
Design SS removal 85
Design P removal
Design N removal
Other
c. What type of disinfection is used for the effluent from this outfall? If disinfection varies by season,please describe:
Sodium Hypochlorite _
If disinfection is by chlorination is dechlorination used for this outfall? ® Yes D No
Does the treatment plant have post aeration? D Yes ® No
A.12. Effluent Testing Information. All Applicants that discharge to waters of the US must provide effluent testing data for the following
parameters. Provide the indicated effluent testing required by the permitting authority for each outfall through which effluent is
discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data
collected through analysis conducted using 40 CFR Part 136 methods. In addition,this data must comply with QA/QC requirements of
40 CFR Part 136 and other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a
minimum,effluent testing data must be based on at least three samples and must be no more than four and one-half years apart.
Outfall number: 001
MAXIMUM DAILY VALUE AVERAGE DAILY VALUE
PARAMETER
Value Units Value Units Number of Samples
pH(Minimum) 6.3 s.u.
pH(Maximum) 7.5 s.u.
Flow Rate 10.28 MGD 1.442 MGD 365
Temperature(Winter) 23 Celsius 13.0 Celsius 101
Temperature(Summer) 26 Celsius 20.3 Celsius 148
For pH please report a minimum and a maximum daily value
MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE ANALYTICAL
POLLUTANT — , ML/MDL
Number of METHOD
Conc. Units Conc. Units Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
BIOCHEMICAL OXYGEN BOD5 14.4 MG/L 3.34 MG/L 249 SM5210B
DEMAND(Report one) CBOD5
FECAL COLIFORM >2420 C/100ML 9.99 C/100M 249 SM9222D
TOTAL SUSPENDED SOLIDS(TSS) 61.5 MG/L 3.57 MG/L 249 SM2540D
END OF PART A.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 6 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP , NC0021121 Renewal Yadkin Pee-Dee
BASIC APPLICATION INFORMATION
PART B. ADDITIONAL APPLICATION INFORMATION FOR APPLICANTS WITH A DESIGN FLOW GREATER THAN OR
EQUAL TO 0.1 MGD(100,000 gallons per day).
All applicants with a design flow rate>_0.1 mgd must answer questions B.1 through B.6. All others go to Part C(Certification).
B.1. Inflow and Infiltration. Estimate the average number of gallons per day that flow into the treatment works from inflow and/or infiltration.
10,000— 15,000 gpd
Briefly explain any steps underway or planned to minimize inflow and infiltration.
B.2. Topographic Map. Attach to this application a topographic map of the area extending at least one mile beyond facility property boundaries. This
map must show the outline of the facility and the following information. (You may submit more than one map if one map does not show the entire
area.)
a. The area surrounding the treatment plant,including all unit processes.
b. The major pipes or other structures through which wastewater enters the treatment works and the pipes or other structures through which
treated wastewater is discharged from the treatment plant. Include outfalls from bypass piping, if applicable.
c. Each well where wastewater from the treatment plant is injected underground.
d. Wells,springs,other surface water bodies,and drinking water wells that are: 1)within A mile of the property boundaries of the treatment
works,and 2)listed in public record or otherwise known to the applicant.
e. Any areas where the sewage sludge produced by the treatment works is stored,treated,or disposed.
f. If the treatment works receives waste that is classified as hazardous under the Resource Conservation and Recovery Act(RCRA)by truck,rail,
or special pipe,show on the map where the hazardous waste enters the treatment works and where it is treated,stored,and/or disposed.
B.3. Process Flow Diagram or Schematic. Provide a diagram showing the processes of the treatment plant,including all bypass piping and all
backup power sources or redunancy in the system. Also provide a water balance showing all treatment units,including disinfection(e.g.,
chlorination and dechlorination). The water balance must show daily average flow rates at influent and discharge points and approximate daily flow
rates between treatment units. Include a brief narrative description of the diagram.
B.4. Operation/Maintenance Performed by Contractor(s).
Are any operational or maintenance aspects(related to wastewater treatment and effluent quality)of the treatment works the responsibility of a
contractor's ❑ Yes ® No
If yes,list the name,address,telephone number,and status of each contractor and describe the contractor's responsibilities(attach additional
pages if necessary).
Name:
Mailing Address:
Telephone Number:
Responsibilities of Contractor:
B.5. Scheduled improvements and Schedules of Implementation. Provide information on any uncompleted implementation schedule or
uncompleted plans for improvements that will affect the wastewater treatment,effluent quality,or design capacity of the treatment works. If the
treatment works has several different implementation schedules or is planning several improvements,submit separate responses to question B.5
for each. (If none,go to question B.6.)
a. List the outfall number(assigned in question A.9)for each outfall that is covered by this implementation schedule.
b. Indicate whether the planned improvements or implementation schedule are required by local,State,or Federal agencies.
❑ Yes ❑ No
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 7 of 22

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NC0021121 - Mount Airy WWTP Facility
Latitude: 36°28'10" Sub-Basin: 03-07-03 Location
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,neitude: 80°36'00" County: Surry
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uad#: B16NE/Mt Airy South
,tream Class: C
2eceiving Stream: Ararat River
Page 9 of 9

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FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
c. If the answer to B.5.b is"Yes,"briefly describe,including new maximum daily inflow rate(if applicable).
d. Provide dates imposed by any compliance schedule or any actual dates of completion for the implementation steps listed below,as
applicable. For improvements planned independently of local,State,or Federal agencies,indicate planned or actual completion dates,as
applicable. Indicate dates as accurately as possible.
Schedule Actual Completion
Implementation Stage MM/DD/YYYY MM/DD/YYYY
-Begin Construction / / I I
-End Construction / / / /
-Begin Discharge / / / /
-Attain Operational Level / / / /
e. Have appropriate permits/clearances concerning other Federal/State requirements been obtained? 0 Yes 0 No
Describe briefly:
B.6. EFFLUENT TESTING DATA(GREATER THAN 0.1 MGD ONLY).
Applicants that discharge to waters of the US must provide effluent testing data for the following parameters. Provide the indicated
effluent testing required by the permitting authority for each outfall through which effluent is discharged. Do not include information
on combine sewer overflows in this section. All information reported must be based on data collected through analysis conducted
using 40 CFR Part 136 methods. In addition,this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate
QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. At a minimum effluent testing data must be
based on at least three pollutant scans and must be no more than four and on-half years old.
Outfall Number: 001
MAXIMUM DAILY AVERAGE DAILY DISCHARGE
DISCHARGE ANALYTICAL
POLLUTANT METHOD ML/MDL
Conc. Units Conc. Units Number of
Samples
CONVENTIONAL AND NON CONVENTIONAL COMPOUNDS
AMMONIA(as N) 15.2 MG/L 0.345 MG/L 156 SM4500NH3 E 0.1
CHLORINE(TOTAL26 UG/L 12 UG/L Y49 SM4500CL G-
RESIDUAL,TRC) 2000
DISSOLVED OXYGEN 18.0 MG/L 9.32 MG/L 249 SM4500 0-2001
TOTAL KJELDAHL 4.25 MG/L 1.61 MGIL 12 SM4500NH3 E 1.0
NITROGEN(TKN)
NITRATE PLUS NITRITE 16.7 MG/L 11.2 MG/L 12 SM4500NH3 E 0.05
NITROGEN
OIL and GREASE <5.0 MG/L <5.0 MG/L 4 EPA 1664A 5.0
PHOSPHORUS(Total) 3.36 MG/L 2.17 MG/L 12 SM4500 P E 0.05
TOTAL DISSOLVED SOLIDS
(TDS)
OTHER
END OF PART B.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OO
RM F RM 2A YOU MUST COMPLETE
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 8 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
BASIC APPLICATION INFORMATION
PART C. CERTIFICATION
All applicants must complete the Certification Section. Refer to instructions to determine who is an officer for the purposes of this
certification. All applicants must complete all applicable sections of Form 2A,as explained in the Application Overview. Indicate below which
parts of Form 2A you have completed and are submitting. By signing this certification statement,applicants confirm that they have reviewed
Form 2A and have completed all sections that apply to the facility for which this application is submitted.
Indicate which parts of Form 2A you have completed and are submitting:
® Basic Application Information packet Supplemental Application Information packet:
® Part D(Expanded Effluent Testing Data)
® Part E(Toxicity Testing: Biomonitoring Data)
El Part F(Industrial User Discharges and RCRA/CERCLA Wastes)
O Part G(Combined Sewer Systems)
ALL APPLICANTS MUST COMPLETE THE FOLLOWING CERTIFICATION.
I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system
designed to assure that qualified personnel properly gather and evaluate the information submitted. Based on my inquiry of the person or persons who
manage the system or those persons directly responsible for gathering the information,the information is,to the best of my knowledge and belief,true,
accurate,and complete. I am aware that there are significant penalties for submitting false information,including the possibility of fine and imprisonment
for knowing violations.
Name and official title Chris Marion,0 rattorrii�n//Responsible Charge(ORC)
Signature ��LJ / ' /a4/pf/
Telephone number [phone] fin(
Date signed v 1/ 142
Upon request of the permitting authority,you must submit any other information necessary to assure wastewater treatment practices at the treatment
works or identify appropriate permitting requirements.
SEND COMPLETED FORMS TO:
NCDENR/ DWQ
Attn: NPDES Unit
1617 Mail Service Center
Raleigh, North Carolina 27699-1617
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 9 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART D. EXPANDED EFFLUENT TESTING DATA
Refer to the directions on the cover page to determine whether this section applies to the treatment works.
Effluent Testing: 1.0 mgd and Pretreatment Works. If the treatment works has a design flow greater than or equal to 1.0 mgd or it has(or is required
to have)a pretreatment program,or is otherwise required by the permitting authority to provide the data,then provide effluent testing data for the following
pollutants. Provide the indicated effluent testing information and any other information required by the permitting authority for each outfall through which
effluent is discharged. Do not include information on combined sewer overflows in this section. All information reported must be based on data collected
through analyses conducted using 40 CFR Part 136 methods. In addition,these data must comply with QA/QC requirements of 40 CFR Part 136 and
other appropriate QA/QC requirements for standard methods for analytes not addressed by 40 CFR Part 136. Indicate in the blank rows provided below
any data you may have on pollutants not specifically listed in this form. At a minimum,effluent testing data must be based on at least three pollutant
scans and must be no more than four and one-half years old.
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE
POLLUTANT Number ANALYTICAL ML/MDL
Conc. Units Mass Units Conc. Units Mass Units of METHOD
Samples
METALS(TOTAL RECOVERABLE),CYANIDE,PHENOLS,AND HARDNESS.
•
ANTIMONY <.025 MG/L <.025 MG/L 2 EPA 200.7 0.025
ARSENIC <.01 MG/L <.01 MG/L 3 EPA 200.7 0.01
BERYLLIUM <.001 MG/L <.001 MG/L 2 EPA 200.7 0.001
CADMIUM <.002 MG/L <.002 MG/L 3 EPA 200.7 0.002
CHROMIUM <.005 MG/L <.005 MG/L 3 EPA 200.7 .0.005
COPPER .014 MG/L .011 MG/L 3 EPA 200.7 0.005
LEAD <.01 MG/L <.01 MG/L 3 EPA 200.7 0.01
MERCURY 6.28 NG/L 4.6 NG/L 3 EPA 1631 E 0.5
NICKEL <.01 MG/L <.01 MG/L 3 EPA 200.7 0.01
SELENIUM <.01 MG/L <.01 MG/L 3 EPA 200.7 0.01
SILVER <.005 MG/L <.005 MG/L 3 EPA 200.7 0.005
THALLIUM <.005 MG/L <.005 MGIL 2 EPA 200.7 0.005
ZINC .092 MG/L .066 MG/L 3 EPA 200.7 0.01
CYANIDE <.01 MG/L <.01 MG/L 3 SM45000NE- 0.01
1999
TOTAL PHENOLIC .006 MG/L .0055 MG/L 2 EPA 420.1 0.005
COMPOUNDS
HARDNESS(as CaCO3) 149 MG/L 67,7 MG/L 15 SM2340C 1997 1.0
Use this space(or a separate sheet)to provide information on other metals requested by the permit writer
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 10 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
' Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE
POLLUTANT Number ANALYTICAL ML/MDL
Conc. Units Mass Units Conc. Units Mass Units of METHOD
Samples
VOLATILE ORGANIC COMPOUNDS
ACROLEIN <.1 MG/L <.1 MG/L 3 EPA 624 0.1
ACRYLONITRILE <.1 MG/L <.1 MG/L 3 EPA 624 0.1
BENZENE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
BROMOFORM <.01 MG/L <.01 MG/L 3 EPA 624 0.01
CARBON <.01 MG/L <.01 MG/L 3 EPA 624 0.01
TETRACHLORIDE
•
CHLOROBENZENE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
CHLORODIBROMO- <01 MG/L <.01 MG/L 3 EPA 624 0.01
METHANE
CHLOROETHANE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
•
2-CHLOROETHYLVINYL
<.01 MG/L <.01 MG/L 3 EPA 624 0.01
ETHER
CHLOROFORM <.01 MG/L <.01 MG/L 3 EPA 624 0.01
DICHLOROBROMO- <.01 MG/L <.01 MG/L 3 EPA 624 0.01
METHANE
1,1-DICHLOROETHANE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
1,2-DICHLOROETHANE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
TRANS-I,2-DICHLORO- <01 MG/L <.01 MG/L 3 EPA 624 0.01
ETHYLENE
1,1-DICHLORO- <.01 MG/L <.01 MG/L 3 EPA 624 0.01
ETHYLENE
1,2-DICHLOROPROPANE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
1,3-DICHLORO- <.01 MG/L <.01 MG/L 3 EPA 624 0.01
PROPYLENE
ETHYLBENZENE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
METHYL BROMIDE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
METHYL CHLORIDE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
METHYLENE CHLORIDE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
1,1,2,2-TETRA- <.01 MG/L <.01 MG/L 3 EPA 624 0.01
CHLOROETHANE
TETRACHLORO-
ETHYLENE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
ETHYLE
TOLUENE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 11 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, N00021121 Renewal Yadkin Pee-Dee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE
POLLUTANT Number ANALYTICAL ML/MDL
Conc. Units Mass Units Conc. Units Mass Units ' of METHOD
Samples
1,1,1-
<.01 MG/L <.01 MG/L 3 EPA 624 0.01
TRICHLOROETHANE
1,1,2-
<.01 MG/L <.01 MG/L 3 EPA 624 0.01
TRICHLOROETHANE
TRICHLOROETHYLENE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
VINYL CHLORIDE <.01 MG/L <.01 MG/L 3 EPA 624 0.01
Use this space(or a separate sheet)to provide information on other volatile organic compounds requested by the permit writer
ACID-EXTRACTABLE COMPOUNDS
P-CHLORO-M-CRESOL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
2-CHLOROPHENOL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
2,4-DICHLOROPHENOL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
2,4-DIMETHYLPHENOL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
4,6-DINITRO-O-CRESOL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
2,4-DINITROPHENOL <.05 MG/L <.05 MG/L 3 EPA 625 0.05
2-NITROPHENOL <.01 MGIL <.01 MG/L 3 EPA 625 0.01
4-NITROPHENOL <.05 MG/L <.05 MG/L 3 EPA 625 0.05
PENTACHLOROPHENOL <.05 MG/L <.05 MG/L 3 EPA 625 0.05
I
PHENOL <.01 MG/L <.01 MGIL 3 EPA 625 0.01
2,4,6- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
TRICHLOROPHENOL
Use this space(or a separate sheet)to provide information on other acid-extractable compounds requested by the permit writer
BASE-NEUTRAL COMPOUNDS
ACENAPHTHENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
ACENAPHTHYLENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
ANTHRACENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
BENZIDINE <.05 MG/L <.05 MG/L 3 EPA 625 0.05
BENZO(A)ANTHRACENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
BENZO(A)PYRENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 12 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE
POLLUTANT Number ANALYTICAL ML/MDL
Conc. Units Mass Units Conc. Units Mass Units of METHOD
Samples
3,4 BENZO- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
FLUORANTHENE
BENZO(GHI)PERYLENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
BENZO(K) <.01 MG/L <.01 MG/L 3 EPA 625 0.01
FLUORANTHENE
BIS(2-CHLOROETHOXY)
<.01 MG/L <.01 MG/L 3 EPA 625 0.01
METHANE
BIS(2-CHLOROETHYL)- <01 MG/L <.01 MG/L 3 EPA 625 0.01
ETHER
BIS(2-CHLOROISO- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PROPYL)ETHER
BIS(2-ETHYLHEXYL)
<.01 MG/L <.01 MG/L 3 EPA 625 0.01
PHTHALATE
4-BROMOPHENYL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PHENYL ETHER
BUTYL BENZYL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PHTHALATE
2-CHLORO- <.01 MG/L <.01 MGIL 3 EPA 625 0.01
NAPHTHALENE
4-CHLORPHENYL <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PHENYL ETHER
CHRYSENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
DI-N-BUTYL PHTHALATE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
DI-N-OCTYL PHTHALATE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
DIBENZO(A,H) <.01 MG/L <.01 MG/L 3 EPA 625 0.01
ANTHRACENE
1,2-DICHLOROBENZENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
1,3-DICHLOROBENZENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
1,4-DICHLOROBENZENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
3,3-DICHLORO-
<.02 MG/L <.02 MG/L 3 EPA 625 0.02
BENZIDINE
DIETHYL PHTHALATE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
DIMETHYL PHTHALATE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
2,4-DINITROTOLUENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
2,6-DINITROTOLUENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
1,2-DIPHENYL-
<.05 MG/L <.05 MG/L 3 EPA 625 0.05
HYDRAZINE
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 13 of 22
I

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
Outfall number: 001 (Complete once for each outfall discharging effluent to waters of the United States.)
MAXIMUM DAILY DISCHARGE AVERAGE DAILY DISCHARGE
POLLUTANT Number A METHOD L ML/MDL
Conc. Units Mass Units Conc. Units Mass Units of
Samples
FLUORANTHENE <.01 MGIL <.01 MG/L 3 EPA 625 0.01
FLUORENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
HEXACHLOROBENZENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
HEXACHLORO- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
BUTADIENE
HEXACHLOROCYCLO- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PENTADIENE
HEXACHLOROETHANE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
INDENO(1,2,3-CD) <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PYRENE
ISOPHORONE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
NAPHTHALENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
NITROBENZENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
N-NITROSODI-N- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PROPYLAMINE
N-NITROSODI- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
METHYLAMINE
N-NITROSODI- <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PHENYLAMINE
PHENANTHRENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
PYRENE <.01 MG/L <.01 MG/L 3 EPA 625 0.01
1,2,4-
<.01 MG/L <.01 MG/L 3 EPA 625 0.01
TRICHLOROBENZENE
Use this space(or a separate sheet)to provide information on other base-neutral compounds requested by the permit writer
Use this space(or a separate sheet)to provide information on other pollutants(e.g.,pesticides)requested by the permit writer
END OF PART D.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 14 of 22

Annual Monitoring and Pollutant Scan
Permit No. NC0021 121 Month JULY
Outfall #001 Year 2015
Facility Name CITY OF MOUNT AIRY WWTP ORC CHRIS MARION
Date of sampling JULY 10, 2015 Phone [phone]
Analytical Laboratory RESEARCH &ANALYTICAL LABORATORIES, INC.
Sample Quantitation Sample Units of Number of
Parameter Type Analytical Method Level Result Measurement samples
Ammonia (as N) Composite SM 4500 NH3D-1997 0.100 <.10 MG/L 1
Dissolved oxygen Grab SM 4500 OG-2001 0.050 7.09 MG/L 1
Nitrate/Nitrite Composite SM 4500 NO3E 0.050 2.3 MG/L 1
I Total Kjeldahl nitrogen Composite HACH 10242 1.000 <1.0 MG/L 1
Total Phosphorus Composite SM 4500 PE-1999 0.050 5.39 MG/L 1
Total dissolved solids Composite SM 2540 C-1997 25.000 222 MG/L 1
Hardness Composite SM 2340 C-1997 1.000 49.5 MG/L 1
Chlorine (total residual,TRC) IGrab SM 4500-CLG-2000 10 UG/L 1
Oil and grease I Grab EPA 1664 A 5.000 <5.0 MG/L 1
Metals(total recoverable),cyanide and total phenols
Antimony Composite EPA 200.7 0.025 <.025 MG/L 1
Arsenic Composite EPA 200.7 0.01 <.01 MG/L 1
Beryllium Composite EPA 200.7 0.001 <.001 MG/L 1
Cadmium Composite EPA 200.7 0.002 <.002 MG/L 1
Chromium Composite EPA 200.7 0.005 <.005 MG/L 1
Copper Composite EPA 200.7 0.005 0.014 MG/L 1
Lead Composite EPA 200.7 0.01 <.01 MG/L 1
Mercury Composite EPA 1631 E 0.5 4.41 NG/L 1
Nickel Composite EPA 200.7 0.01 <.01 MG/L 1
Selenium Composite EPA 200.7 0.01 <.01 MG/L 1
Silver Composite EPA 200.7 0.005 <.005 MG/L 1
Thallium Composite EPA 200.7 0.005 <.005 MG/L 1
Zinc Composite EPA 200.7 0.01 0.092 MG/L 1
Cyanide Grab SM 4500 CNE-1999 0.01 <.01 MG/L 1
Total phenolic compounds Grab EPA 420.1 0.005 <.005 MG/L 1
Volatile organic compounds _ -"r ;
Acrolein Grab EPA 624 0.1 BQL MG/L 1
Acrylonitrile Grab EPA 624 0.1 BQL MG/L 1
Benzene Grab EPA 624 0.01 BQL MG/L 1
Bromoform Grab EPA 624 0.01 BQL MG/L 1
Carbon tetrachloride Grab EPA 624 0.01 BQL MG/L 1
Chlorobenzene -
Grab EPA 624 0.01 BQL MG/L 1
Chlorodibromomethane Grab EPA 624 0.01 BQL MG/L 1
Chloroethane Grab EPA 624 0.01 BQL MG/L 1
2-chloroethylvinyl ether Grab EPA 624 0.01 BQL MG/L 1
Chloroform Grab EPA 624 0.01 BQL MG/L 1
Dichlorobromomethane Grab EPA 624 0.01 BQL MG/L 1
1,1-dichloroethane Grab EPA 624 0.01 BQL MG/L 1
1,2-dichloroethane Grab EPA 624 0.01 BQL MG/L 1
Trans-1,2-dichloroethylene Grab EPA 624 0.01 BQL MG/L 1
Sample Sample Units of Number of
Parameter Type Analytical Method Result Measurement samples
Volatile organic compounds(Cont.)
1,1-dichloroethylene Grab EPA 624 0.01 BQL MG/L 1
1,2-dichloropropane Grab EPA 624 0.01 BQL MG/L 1
1,3-dichloropropylene Grab EPA 624 0.01 BQL MG/L 1
Form - DMR- PPA-1 Page 1

Annual Monitoring and Pollutant Scan
Permit No. NC0021 121 Month JULY
Outfall #001 Year 2015
Ethylbenzene Grab EPA 624 0.01 BQL MG/L 1
Methyl bromide Grab EPA 624 0.01 BQL MG/L 1
Methyl chloride Grab EPA 624 0.01 BQL MG/L 1
Methylene chloride Grab EPA 624 0.01 BQL MG/L r 1
1,1,2,2-tetrachloroethane Grab EPA 624 0.01 BQL MG/L 1
Tetrachloroethylene Grab EPA 624 0.01 _ BQL MG/L 1
Toluene Grab EPA 624 0.01 BQL MG/L 1
1,1,1-trichloroethane Grab EPA 624 0.01 _ BQL MG/L 1
1,1,2-trichloroethane Grab EPA 624 0.01 BQL MG/L 1
Trichloroethylene Grab EPA 624 0.01 BQL MG/L 1
Vinyl chloride Grab EPA 624 0.01 BQL MG/L 1
Acid-extractable compounds
P-chloro-m-creso Grab EPA 625 0.01 BQL MG/L 1
2-chlorophenol Grab EPA 625 0.01 BQL MG/L 1
2,4-dichlorophenol Grab EPA 625 0.01 BQL MG/L 1
2,4-dimethylphenol Grab EPA 625 0.01 BQL MG/L 1
4,6-dinitro-o-cresol Grab EPA 625 0.01 BQL MG/L 1 I
2,4-dinitrophenol Grab EPA 625 0.05 BQL MG/L 1
2-nitrophenol Grab EPA 625 0.01 BQL MG/L 1
4-nitrophenol Grab EPA 625 0.05 BQL MG/L 1
Pentachlorophenol Grab EPA 625 0.05 BQL MG/L 1
Phenol Grab EPA 625 0.01 BQL MG/L 1
2,4,6-trichlorophenol Grab EPA 625 0.01 BQL MG/L 1
Base-neutral compounds
Acenaphthene Grab EPA 625 0.01 BQL MG/L 1
Acenaphthylene Grab EPA 625 0.01 BQL MG/L 1
Anthracene Grab EPA 625 0.01 BQL MG/L 1
Benzidine Grab EPA 625 0.05 BQL MG/L 1
Benzo(a)anthracene Grab EPA 625 0.01 BQL MG/L 1
Benzo(a)pyrene Grab EPA 625 0.01 BQL MG/L 1
3,4 benzofluoranthene Grab EPA 625 0.01 BQL MG/L 1
Benzo(ghi)perylene Grab EPA 625 0.01 BQL MG/L 1
Benzo(k)fluoranthene Grab EPA 625 0.01 BQL MG/L 1
Bis (2-chloroethoxy) methane Grab EPA 625 0.01 BQL MG/L 1
Bis (2-chloroethyl) ether Grab EPA 625 0.01 BQL MG/L 1
Bis(2-chloroisopropyl) ether Grab EPA 625 0.01 BQL MG/L _ 1
Bis(2-ethylhexyl) phthalate Grab EPA 625 0.01 BQL MG/L 1
4-bromophenyl phenyl ether Grab EPA 625 0.01 BQL MG/L 1
Butyl benzyl phthalate Grab EPA 625 0.01 BQL MG/L 1
2-chloronaphthalene Grab EPA 625 0.01 BQL MG/L 1
4-chlorophenyl phenyl ether Grab EPA 625 0.01 BQL MG/L 1
Sample Quantitation Sample Units of Number of
Parameter Type Analytical Method Level Result Measurement samples
Base-neutral compounds(cont.)
Chrysene Grab EPA 625 0.01 BQL MG/L 1
Di-n-butyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Di-n-octyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Dibenzo(a,h)anthracene Grab EPA 625 0.01 BQL MG/L 1
1,2-dichlorobenzene Grab EPA 625 0.01 _ BQL MG/L 1
1,3-dichlorobenzene Grab EPA 625 0.01 BQL MG/L _ 1
1,4-dichlorobenzene Grab EPA 625 0,01 BQL MG/L 1
3,3-dichlorobenzidine Grab EPA 625 0.02 BQL MG/L 1
Form - DMR- PPA-1 Page 2

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month JULY
Outfall #001 Year 2015
Diethyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Dimethyl phthalate Grab EPA 625 0.01 BQL MG/L 1
2,4-dinitrotoluene Grab EPA 625 0.01 BQL MG/L 1
2,6-dinitrotoluene Grab EPA 625 0.01 BQL MG/L 1
1,2-diphenylhydrazine Grab EPA 625 0.05 BQL MG/L 1
Fluoranthene Grab EPA 625 0.01 BQL MG/L 1
Fluorene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorobenzene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorobutadiene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorocyclo-pentadiene Grab EPA 625 0.01 BQL MG/L 1
Hexachloroethane Grab EPA 625 0.01 BQL MG/L 1
Indeno(1,2,3-cd)pyrene Grab EPA 625 0.01 BQL MG/L 1
Isophorone Grab EPA 625 0.01 BQL MG/L 1
Naphthalene Grab EPA 625 0.01 BQL MG/L 1
Nitrobenzene Grab EPA 625 0.01 BQL MG/L 1
N-nitrosodi-n-propylamine Grab EPA 625 _ 0.01 BQL MG/L 1
N-nitrosodimethylamine Grab EPA 625 0.01 BQL MG/L 1
N-nitrosodiphenylamine Grab EPA 625 0.01 BQL MG/L 1
Phenanthrene Grab EPA 625 0.01 BQL MG/L 1
Pyrene Grab EPA 625 0.01 BQL MG/L 1
1,2,4,-trichlorobenzene Grab EPA 625 _ 0.01 _ BQL MG/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 of design to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the person or persons that
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 fines and imprisonment for knowingvi lations.
NS 1'1tG1!`I ur..)
Author Rep s tative name
a4,,,_,
Signature
// 9(s
Date
Form - DMR- PPA-1 Page 3

RESEARCH & ANAEyTICAL Report of Analysis
tLABORATORIES, INC. 7/22/2015
t
For: City of Mount Airy VWVTP .`` I ...1 1La..
PO Box 70 ... ,4f..,....,t.ck,''••••'&0
,1'
Mount Airy, NC 27030 re :-.7 o:�,'
:co NC#34 Z:
Attn: Chris Marion
I. ;S NC#37701
Client Sample ID: Plant Effluent Lab Sample ID: 6401-01
Site: City of Mt Airy WWTP Collection Date: 7/10/2015 8:30
Parameter Method Result Units Rep Limit Analyst Analysis Date/Time
Ammonia Nitrogen SM 4500 NH3 D-1997 <0.1 mg/L 0.1 KL 7/13/2015
Antimony,Total EPA 200.7 <0.025 mg/L 0.025 AA 7/15/2015
Arsenic,Total EPA 200.7 <0.01 mg/L 0.01 AA 7/15/2015
Beryllium,Total EPA 200.7 <0.001 mg/L 0.001 AA 7/15/2015
Cadmium,Total EPA 200.7 <0.002 mg/L 0.002 AA 7/15/2015
Chromium,Total EPA 200.7 <0.005 mg/L 0.005 AA 7/15/2015
Copper,Total EPA 200.7 0.014 mg/L 0.005 AA 7/15/2015
Cyanide SM 4500 CN E-1999 <0.01 mg/L 0.01 YJ 7/14/2015
Dissolved Solids SM 2540 C-1997 222 mg/L 25 YJ 7/13/2015
Hardness, Total SM 2340 C-1997 49.5 mg/L 1 AP 7/14/2015
Lead,Total EPA 200.7 <0.01 mg/L 0.01 AA 7/15/2015
Nickel,Total EPA 200.7 <0.01 mg/L 0.01 AA 7/15/2015
Nitrate+ Nitrite SM4500 NO3E 2.30 mg/L 0.05 DW 7/10/2015 1320
Nitrate Nitrogen SM 4500 NO3 E-2000 2.30 mg/L 0.05 DW 7/10/2015 1320
Nitrite Nitrogen SM 4500 NO2 B-2000 <0.01 mg/L 0.01 DW 7/10/2015 1440
Oil&Grease EPA 1664 B <5 mg/L 5 JB 7/14/2015
Phenols EPA 420.1 <0.005 mg/L 0.005 DW 7/16/2015
Selenium,Total EPA 200.7 <0.01 mg/L 0.01 AA 7/15/2015
P.O. Box 473 106 Short Street Kernersville,North Carolina 27284 Tel:[phone] Fax:[phone] www.randalabs.com Page 1
ral coa basic v1d

RESEARCH & ANAL TICAL
y Report of Analysis
1+4
LABORATORIES, INC. 7/22/2015
Client Sample ID: Plant Effluent Lab Sample ID: 6401-01
Site: City of Mt Airy WWTP Collection Date: 7/10/2015 8:30
Parameter Method Result Units Rep Limit Analyst Analysis Date/Time
Silver,Total EPA 200.7 <0.005 mg/L 0.005 AA 7/15/2015
Thallium,Total EPA 200.7 <0.005 mg/L 0,005 AA 7/15/2015
Total Kjedjahl Nitrogen Hach 10242 <1.0 mg/L 1 KL 7/16/2015
Total Nitrogen Calc 2.3 mg/L 1
Total Phosphorous SM 4500 P E-1999 5.39 mg/L 0.05 KH 7/17/2015
Zinc,Total EPA 200.7 0.092 mg/L 0.01 AA 7/15/2015
NA=not analyzed
Q.O.Box 473 106 Short Street Kernersville, North Carolina 27284 Tel:[phone] Fax:[phone] www.randalabs.com Page 2
*al coa basic v1d

RESEARCIh & AINAlyn.
cAl .�'°# b r%'�.
LABORATORIES INC. :, 94'44Z ,'
Analytical/Process Consultations S ''s,
Chemical Analysis for Selected Parameters and Water Sample Identified as Plant Effluent
(A City of Mount Airy WWTP Project, collected 10 July 2015)
I. Volatile Organics Quantitation Plant H. Semi-volatile Organics Quantitation Plant
EPA Method 624 Limit Effluent Method 625 Limit Effluent
Parameter (ma/L1 (mg/L) Parameter (mEJL) (mp_/L)
Methylene Chloride 0.010 BQL 4-Chloro-3-methylphenol 0.010 BQL
Trichlorofluoromethane 0.010 BQL 2-Chlorophenol 0.010 BQL
1,1-Dichloroethene 0.010 BQL 2,4-Dichlorophenol 0.010 BQL
1,1-Dichloroethane 0.010 BQL 2,4-Dimethylphenol 0.010 BQL
Chloroform 0.010 BQL 2,4-Dinitrophenol 0.050 BQL
Carbon Tetrachloride 0.010 BQL 2-Meth I-4 6-dinitro BQL henol 0.050
Q Y � P
1,2-Dichloropropane 0.010 BQL 2-Nitrophenol 0.010 BQL
Trichloroethene 0.010 BQL 4-Nitrophenol 0.050 BQL
Dibromochloromethane 0.010 BQL Pentachlorophenol 0.050 BQL
1,1,2-Trichloroethane 0.010 BQL Phenol 0.010 BQL
Tetrachloroethene 0.010 BQL 2,4,6-Trichlorophenol 0.010 BQL
Chlorobenzene 0.010 BQL Acenaphthene 0.010 BQL
Trans-1,2-Dichloroethene 0.010 BQL Acenaphthylene 0.010 BQL
1,2-Dichloroethane 0.010 BQL Anthracene 0.010 BQL
1,1,1-Trichloroethane 0.010 BQL Benzidine 0.050 BQL
Bromodichloromethane 0.010 BQL Benzo(a)anthracene 0.010 BQL
Cis-1,3-Dichloropropene 0.010 BQL Benzo(a)pyrene 0.010 BQL
Benzene 0.010 BQL Benzo(b)fluoranthene 0.010 BQL
Trans-1,3-Dichloropropene 0.010 BQL Benzo(ghi)perylene 0.010 BQL
Bromoform 0.010 BQL Benzo(k)fluoranthene 0.010 BQL
1,1,2,2-Tetrachloroethane 0.010 BQL Benzyl butyl phthalate 0.010 BQL
Toluene 0.010 BQL Bis(2-chloroethoxy)methane 0.010 BQL
Ethyl Benzene 0.010 BQL Bis(2-chloroethyl)ether 0.010 BQL
Chloromethane 0.010 BQL Bis(2-chloroisopropyl)ether 0.010 SQL
Bromomethane 0.010 BQL Bis(2-ethyl-hexyl)phthalate 0.010 BQL
Vinyl Chloride 0.010 BQL 4-Bromophenyl phenyl ether 0.010 BQL
Chloroethane 0.010 BQL 2-Chloronaphthalene 0.010 SQL
Total Xylenes 0.010 BQL 4-Chlorophenyl phenyl ether 0.010 BQL
Acrolein 0.100 BQL Chrysene 0.010 BQL
Acrylonitrile 0.100 BQL Dibenzo(a,h)anthracene 0.010 BQL
2-Chloroethyl vinyl ether 0.010 BQL 1,2-Dichlorobenzene 0.010 BQL
1,3-Dichlorobenzene 0.010 BQL
Dilution Factor 1 1,4-Dichlorobenzene 0.010 BQL
3,3-Dichlorobenzidine 0.020 BQL
Di-N-Butyl phthalate 0.010 BQL
Sample Number 6401-01 2,4-Dinitrotoluene 0.010 BQL
Sample Date 07/10/15 2,6-Dinitrotoluene 0.010 BQL
Sample Time(hrs) 0803 Di-N-Octyl phthalate 0.010 BQL
Fluorarthene 0.010 BQL
Hexachlorobenzene 0.010 BQL
Hexachlorobutadiene 0.010 BQL
Hexachlorocyclopentadiene 0.010 BQL
Hexachloroethane 0.010 BQL
Indeno(1,2,3-cd)pyrene 0.010 BQL
Isophorone 0.010 BQL
Naphthalene 0.010 BQL
Nitrobenzene 0.010 BQL
N-Nitrosodimethylamine 0.010 BQL
N-nitrosodi-n-propylamine 0.010 BQL
N-Nitrosodiphenylamine 0.010 BQL
Phenanthrene 0.010 BQL
Pyrene 0.010 BQL
1,2,4-Trichlorobenzene 0.010 BQL
4,6-dinitro-2-methyl phenol 0.010 BQL
Diethyl phthalate 0.010 BQL
Dimethyl phthalate 0.010 BQL
Fluorene 0.010 BQL
1,2-diphenyl hydrazine 0.050 BQL
Dilution Factor 1
BQL = Below Quantitation Limits
mg/L =milligrams per Liter=parts per million(ppm) Sample Number 6401-01
Sample Date 07/10/15
Sample Time(hrs) 0803
l

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.^ti gib. i l"S,a Q - j'' NC#34 Z •
Analytical/Process Consultations vc °•�AFcro?:
July 10. 2015
City of Mt. Airy
P.O. Box 70
Mt. Airy,NC 27030
Attention: Chris Marion
Low Level Mercury Analysis
RAL Low Level
Sample Sample Sample Sample Mercury *
Identification Number Date Time (ng/L)
Plant Effluent 6169-03 07/07/15 0800 4.41
Field Blank 6169-06 07/07/15 1.19
* = Sample analyzed by Summit Environmental Technologies, Inc. (NC WW Cert#39705)
n€%L = nanograms per Liter < = Less than or below detection limit

Annual Monitoring and Pollutant Scan
Permit No. NC0021121
Outfall #001 Month October
Year 2016
Facility Name CITY OF MOUNT AIRY WWTP ORC CHRIS MARION
Date of sampling October 28, 2015 Phone [phone]
Analytical Laboratory RESEARCH &ANALYTICAL LABORATORIES, INC.
• Sample
Quantitation Sample Units of Number of
Parameter Type Analytical Method Level Result Measurement samples
Ammonia (as N) Composite SM 4500 NH3D-1997 0.100 <.10 MG/L 1
Dissolved oxygen Grab SM 4500 OG-2001 0.050 8.44 MG/L 1
Nitrate/Nitrite Composite SM 4500 NOSE 0.050 11.7 MG/L 1
Total Kjeldahl nitrogen Composite g pos to HACH 10242 1.000 1.01 MG/L 1
Total Phosphorus Composite SM 4500 PE-1999 0.050 1.94
MG/L
1Total dissolved solids Composite
SM 2540 C-1997 25.000 MG/L 1
Hardness Composite SM 2340 C-1997 1.000 47.9 MG/L 1
Chlorine (total residual, TRC) Grab SM 4500-CLG-2000 22 UG/L 1
Oil and grease Grab EPA 1664 A J 5.000 <5.0 MG/L
Metals(total recoverable);cyaaide'and`total.phenols`` - ,- -• r 1., 1,,
Antimony Composite EPA 200.7 0.025 MG/L 1
Arsenic Composite EPA 200.7 0.01 <.01 MG/L 1
Beryllium Composite EPA 200.7 0.001 MG/L 1
Cadmium Composite EPA 200.7 0.002 <.002 MG/L 1
Chromium Composite EPA 200.7 _ 0.005 <.005 MG/L 1
Copper Composite EPA 200.7 0.005 0.014 MG/L 1
Lead Composite _EPA 200.7 0.01 <.01 MG/L 1
Mercury Composite EPA 1631 E 0.5 3.11 NG/L 1
Nickel Composite EPA 200.7 0.01 <.01
MG/L
Selenium / 1
Composite _EPA 200.7 0.01 <.01 MG/L 1
Silver Composite EPA 200.7 0.005 <.005 MG/L 1
Thallium Composite EPA 200.7 0.005 MG/L 1
Zinc Composite EPA 200.7 0.01 0.038 MG/L 1
Cyanide Grab SM 4500 CNE-1999 0.01 <.01 MG L
1Total phenolic compounds Grab EPA 420.1
0.005
1
Volatile`organic'compounds y.. ti S T.rP :."S'x s 3 iPg.M . # :,s ,a _;' ,' ;, ?.Z_ , g# 'W, i 0t `9 �`
x
Acrolein Grab EPA 624 x
Acrylonitrile Grab __ EPA 624 0.1 BQL MG/L MG/L L 1
.
Benzene
Grab EPA 624 0.01 BQL MG/L 1
Bromoform Grab EPA 624 0.01 BQL MG/L
Carbon tetrachloride / 1
Grab EPA 624 0.01 BQL MG/L 1
Chlorobenzene Grab EPA 6240.01 BQL MG/L
Chlorodibromomethane / 1
Grab EPA 624 0.01 BQL MG/L 1
Chloroethane Grab EPA 624 0.01 BQL MG/L 1
2-chloroethylvinyl ether Grab EPA 624 0.01 BQL MG/L 1
Chloroform Grab EPA 624 0.01 BQL MG/L
Dichlorobromomethane / 1
Grab EPA 624 0.01 BQL MG/L 1
1,1-dichloroethane Grab EPA 624 0.01 BQL MG/L 1
1,2-dichloroethane Grab EPA 624 0.01 BQL MG/L
Trans 1,2 dichloroeth lene / 1
Y Grab EPA 624 0.01 13Q1, MG/L 1
Sample Sample Units of Number of
Parameter Type Analytical Method Result Measurement samples
Volatileorganic compounds(Cont.)
1,1-dichloroethylene I Grab i EPA 624 J 0.01 BQL I MG/L j 1
1,2-dichloropropane Grab EPA 624 0.01 BQL MG/L 1
1,3-dichloropropylene Grab EPA 624 0.01 BQL MG/L 1
Ethylbenzene Grab EPA 624 0.01 BQL MG/L
Methyl bromide Grab EPA 624 1
0.01 BQL MG/L 1
Methyl chloride Grab EPA 624 0.01 BQL MG/L 1
Methylene chloride Grab EPA 624 0.01 BQL MG/L
1,1,2,2-tetrachloroethane Grab 1
EPA 624 0.01 BQL MG/L 1
Tetrachloroethylene Grab EPA 624 0.01
BQL MG/L 1
Toluene
Grab EPA 624 0.01 BQL MG/L 1
1,1,1-trichloroethane Grab EPA 624 0.01 BQL MG/L 1
1,1,2-trichloroethane Grab EPA 624 0.01 BQL MG/L 1
Form - DMR- PPA-1
Page 1
1

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month October
Outfall #001 Year 2016
Trichloroethylene Grab EPA 624 0.01 BQL MG/L 1
Vinyl chloride Grab EPA 624 0.01 BQL MG/L 1
Acid-extractable;:compounds' .. '.'';*' :P . ,.. `,a <_ia�"„.:t3�-S, " r'h af4 `. i:.
P-chloro-m-creso Grab EPA 625 0.01 BQL MG/L s 1
2-chlorophenol Grab EPA 625 0.01 BQL MG/L 1
2,4-dichlorophenol Grab EPA 625 0.01 BQL MG/L 1
2,4-dimethylphenol Grab EPA 625 0.01 BQL MG/L 1
4,6-dinitro-o-cresol Grab EPA 625 0.01 BQL MG/L 1
2,4-dinitrophenol Grab EPA 625 0.05 BQL MG/L 1
2-nitrophenol Grab EPA 625 0.01 BQL MG/L 1
4-nitrophenol Grab EPA 625 0.05 BQL MG/L 1 _
Pentachlorophenol Grab EPA 625 _ 0.05 BQL MG/L 1
Phenol Grab EPA 625 0.01 BQL MG/L 1
2,4,6-trichlorophenol Grab EPA 625 0.01 BQL MG/L 1
Base-nei tral compoundsfew„{- .r . u;3�t ,'rs�, a ` ili„Y,5k1ts14. : al ,..`.3r+ 5 '4�. VA 4- ,ia;
Acenaphthene Grabl EPA 625 0.01 1 BQL _ MG/L 1
Acenaphthylene Grab
EPA 625 0.01
BQL
MG/L L 1
Anthracene Grab EPA 625 0.01 BQL MG/L 1 _
Benzidine Grab EPA 625 0.05 BQL MG/L 1
Benzo(a)anthracene Grab EPA 625 0.01 BQL MG/L _ 1
Benzo(a)pyrene Grab _ EPA 625 0.01 BQL MG/L 1
3,4 benzofluoranthene Grab _ EPA 625 0.01 BQL MG/L 1
Benzo(ghi)perylene Grab EPA 625 _ 0.01 BQL MG/L 1
Benzo(k)fluoranthene Grab EPA 625 0.01 BQL MG/L 1
Bis (2-chloroethoxy) methane Grab EPA 625 0.01 BQL MG/L 1 _
Bis (2-chloroethyl) ether Grab EPA 625 0.01 BQL MG/L 1
Bis (2-chloroisopropyl) ether Grab EPA 625 0.01 BQL MG/L 1
Bis (2-ethylhexyl) phthalate Grab EPA 625 0.01 BQL MG/L 1
4-bromophenyl phenyl ether Grab EPA 625 0.01 BQL MG/L 1
Butyl benzyl phthalate Grab EPA 625 0.01 BQL MG/L 1
2-chloronaphthalene Grab EPA 625 0.01 BQL MG/L 1
4-chlorophenyl phenyl ether Grab EPA 625 0.01 BQL MG/I. 1
00,44,11-pr.:‘,.. Sam le
p Quantitation Sample Units of Number' of
Parameter' Type Analytical Method Level Result Measurement samples
Base-neutral",compounds(cont.)
Chrysene Grab EPA 625 0.01 EQL MG/L 1
Di-n-butyl phthalate Grab EPA 625 _ 0.01 BQL MG/L 1
Di-n-octyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Dibenzo(a,h)anthracene Grab EPA 625 0.01 BQL MG/L 1
1,2-dichlorobenzene Grab EPA 625 0.01 BQL MG/L 1
1,3-dichlorobenzene Grab EPA 625 0.01 BQL MG/L 1
1,4-dichlorobenzene Grab EPA 625 0.01 BQL MG/L 1
3,3-dichlorobenzidine Grab EPA 625 0.02 BQL MG/L 1
Diethyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Dimethyl phthalate Grab EPA 625 0.01 BQL MG/L 1
2,4-dinitrotoluene Grab EPA 625 0.01 BQL MG/L 1
2,6-dinitrotoluene Grab EPA 625 0.01 BQL MG/L 1
1,2-diphenylhydrazine Grab EPA 625 0.05 BQL MG/L 1
Fluoranthene Grab EPA 625 0.01 BQL MG/L 1
Fluorene Grab EPA 625 0.01 _ BQL MG/L 1
Hexachlorobenzene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorobutadiene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorocyclo-pentadiene Grab EPA 625 0.01 BQL MG/L 1
Hexachloroethane Grab EPA 625 0.01 BQL MG/L 1
Indeno(1,2,3-cd)pyrene Grab EPA 625 0.01 BQL MG/L 1
Isophorone Grab EPA 625 _ 0.01 BQL MG/L 1
Naphthalene Grab EPA 625 0.01 BQL MG/L 1
Nitrobenzene Grab EPA 625 _ 0.01 BQL MG/L 1
N-nitrosodi-n-propylamine Grab EPA 625 0.01 BQL MG/L 1
N-nitrosodimethylamine Grab EPA 625 0.01 BQL MG/L 1
N-nitrosodiphenylamine Grab EPA 625 _ 0.01 BQL MG/L 1
Form - DMR- PPA-1 Page 2

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month October
Outfall #001 Year 2016
Phenanthrene Grab EPA 625 0.01 BQL MG/L 1
Pyrene Grab EPA 625 0.01 BQL MG/L 1
1,2,4,-trichlorobenzene _ Grab EPA 625 0.01 BQL MG/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 of design to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the person or persons that
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 fines and imprisonment for knowing violatioly
AuthorizedZppres n tive name
,,,;.,_)
Signature
42- aD-/6
Date
Form- DMR- PPA-1
Page 3

RESEARCh1 & ANAIyTICAI Report of Analysis
ysis
y r LABORATORIES INC.
1 � I 10/19/2016
111714,111-
For: City of Mount Airy WWTP .���`G�& Yj� �,,�
PO Box 70 :` ;...4 �-CNAN 1#.
Mount Airy, NC 27030 i ?Cr) Nc1134 oz,; N
Attn: Chris Marion Nc u377o1
i,';f7 fE0'A
1 �P,, �`.
S
I
Client Sample ID: Plant Effluent Lab Sample ID: 25375-01
Site: City of Mt Airy WWTP Collection Date: 10/4/2016 8:00
Parameter Method Result Units Rep Limit Analyst Analysis Date/Time 1
Ammonia Nitrogen SM 4500 NH3 D-1997 <0.1 mg/L 0.1 SK 10/8/2016
Arsenic, Total EPA 200.7 <0.01 mg/L 0.01 KL 10/5/2016
BOD-5 SM 5210 B-2001 <2 mg/L 2 KN 10/5/2016 1035
Cadmium, Total EPA 200.7 <0.002 mg/L 0.002 KL 10/5/2016
unloride SM 4500 CI B-1997 36.7 mg/L 1 KN 10/6/2016
Chromium, Total EPA 200.7 <0.005 mg/L 0.005 KL 10/5/2016
Copper, Total EPA 200.7 0.014 mg/L 0.005 KL 10/5/2016
Hardness, Total SM 2340 C-1997 47.9 mg/L 1 AP 10/13/2016
Lead, Total EPA 200.7 <0.01 mg/L 0.01 KL 10/5/2016
Molybdenum,Total EPA 200.7 <0.1 mg/L 0.1 KL 10/5/2016
Nickel, Total EPA 200.7 <0.01 mg/L 0.01 KL 10/5/2016
Nitrate + Nitrite SM4500 NO3E 11.7 mg/L 0.05 DW 10/6/2016 1030
Selenium, Total EPA 200.7 <0.01 mg/L 0.01 KL 10/5/2016
Silver, Total EPA 200.7 <0.005 mg/L 0.005 KL 10/5/2016
Total Kjedjahl Nitrogen Hach 10242 1.01 mg/L 1 SK 10/7/2016
otal Nitrogen Calc 12.7 mg/L 1
--oat Phosphorous SM 4500 P E-1999 1.94 mg/L 0.05 LP 10/10/2016
1 atal Suspended Solids (TSS) SM 2540 D-1997 5.6 mg/L 5 AW 10/6/2016
0. Box 473 106 Short Street Kernersville, North Carolina 27284 Tel: [phone] Fax: [phone] www.randalabs.corn Page 1

RESEARCII & ANAlyTiCAI Report of Analysis
LAb®RAY®RIES INC. p y s
'_ 10/19/2016
Client Sample ID: Plant Effluent Lab Sample ID: 25375-01
Site: City of Mt Airy WWTP Collection Date: 10/4/2016 8:00
Parameter Method Result Units Rep Limit Analyst Analysis Date/Time I
Zinc, Total EPA 200.7 0.038 mg/L 0.01 KL 10/5/2016
Client Sample ID: Plant Effluent Lab Sample ID: 25375-02
Site: City of Mt Airy WWTP Collection Date: 10/4/2016 8:00
Parameter Method Result Units Rep Limit Analyst Analysis Date/Time
Conductivity EPA 120.1 _
416 umhos/cm 10 LP 10/7/2016
Cyanide SM 4500 CN E-1999 <0.01 mg/L 0.01 AW 10/14/2016
Oil& Grease EPA 1664 B <5 mg/L 5 DN 10/5/2016
Client Sample ID: Plant Effluent Lab Sample ID: 25375-03
Site: City of Mt Airy WWTP Collection Date: 10/4/2016 9:40
arameter Method Result Units Rep Limit Analyst Analysis Date/Time I
Fecal Coliform QT Colilert 18 8 MPN/100m1 1 LP 10/4/2016 1609
NA. =no!analyzed
........... . .........__...._......
. ..._.._.. . .. .......__....
3. Box 473 106 Short Street Kernersville, North Carolina 27284 Tel: [phone] Fax: [phone] vn'nv.randalabs. Page 2
0 corn

RESEARCh -k
•b _LAbORAI iESINC. °
•h NcY3q a,
i.
Analytical/Process Consultations :0\?'/iec-roc:; \�',,'
October 12, 2016
City of Mt. Airy
P.O. Box 70
Mt. Airy,NC 27030
Attention: Chris Marion
Low Level Mercury Analysis
RAL Low Level
Sample Sample Sample Sample Mercury *
Identification Number Date Time (ng/L)
Cl2 Contact Chamber 25380-02 10/04/16 0740 3.11
'Veld Blank 25380-01 10/04/16 0730 <1.0
* = Sample analyzed by Meritech,Inc.(NC WW Cert#165)
ng/L = nanograms per Liter < = Less than or below iletPrtio„ limit

RESEARCII & ANALYTI•
CAL ,,,,..,,,..,,�
.••••,�:b���,?'moi
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•
LABORATORIES, INC. =�?�11C„ 'Q►
_ i
Analytical/Process Consultations '+.
tttttttttttt
Chemical Analysis for Selected Parameters and Water Sample Identified as Plant Effluent
A City of Mount Airy WWTP Project, collected 28 October 2016)
1. Volatile Organics Quantitation Plant II, Semi-volatile Organics Quantitation Plant
EPA Method 624 Limit Effluent Method 625 Limit Effluent
Parameter (mg/L) (m2IL) Parameter (mg/L) (mg/L)
Methylene Chloride 0.010 BQL 4-Chloro-3-methylphenol 0.010 BQL
Trichlorofluoromethane 0.010 BQL 2-Chlorophenol 0.010 BQL
1,1-Dichloroethene 0.010 BQL 2,4-Dichlorophenol 0.010 BQL
1,1-Dichloroethane 0.010 BQL 2,4-Dimethylphenol 0.010 BQL
Chloroform 0.010 BQL 2,4-Dinitrophenol 0.050 BQL
Carbon Tetrachloride 0.010 BQL 2-Methyl-4,6-dinitrophenol 0.050 BQL
1,2-Dichloropropane 0.010 BQL 2-Nitrophenol 0.010 BQL
Trichloroethene 0.010 BQL 4-Nitrophenol 0.050 BQL
Dibromochloromethane 0.010 BQL Pentachlorophenol 0.050 BQL
1,1,2-Trichloiuethane 0.010 BQL Phenol 0.010 BQL
Tetrachloroethene 0.010 BQL 2,4,6-Trichlorophenol 0.010 BQL
Chlorobenzene 0.010 BQL Acenaphthene 0.010 BQL
Trans-1,2-Dichloroethene 0.010 BQL Acenaphthylene 0.010 BQL
1,2-Dichloroethane 0.010 BQL Anthracene 0.010 BQL
1,1,1-Trichloroethane 0.010 BQL Benzidine 0.050 BQL
Bromodichloromethane 0.010 BQL Benzo(a)anthracene 0.010 BQL
Cis-1,3-Dichloropropene 0.010 BQL Benzo(a)pyrene 0.010 BQL
Benzene 0.010 BQL Benzo(b)fluoranthene 0.010 BQL
Trans-1,3-Dichloropropene 0.010 BQL Benzo(ghi)perylene 0.010 BQL
Bromoform 0.010 BQL Benzo(k)fluoranthene 0.010 BQL
1,1,2,2-Tetrachloroethane 0.010 BQL Benzyl butyl phthalate 0.010 BQL
Toluene 0.010 BQL Bis(2-chloroethoxy)methane 0.010 BQL
Ethyl Benzene 0.010 BQL Bis(2-chloroethyl)ether 0.010 BQL
Chloromethane 0.010 BQL Bis(2-chloroisopropyl)ether 0.010 BQL
Bromomethane 0.010 BQL Bis(2-ethyl-hexyl)phthalate 0.010 BQL
Vinyl Chloride 0.010 BQL 4-Bromophenyl phenyl ether 0.010 BQL
Chloroethane 0.010 BQL 2-Chloronaphthalene 0.010 BQL
Total Xylenes 0.010 BQL 4-Chlorophenyl phenyl ether 0.010 BQL
Acrolein 0.100 BQL Chrysene 0.010 BQL
Acrylonitrile 0.100 BQL Dibenzo(a,h)anthracene 0.010 BQL
2-Chloroethyl vinyl ether 0.010 BQL 1,2-Dichlorobenzene 0.010 BQL
1,3-Dichlorobenzene 0.010 BQL
Dilution Factor 1 1,4-Dichlorobenzene 0.010 BQL
3,3-Dichlorobenzidine 0.020 BQL
Di-N-Butyl phthalate 0.010 BQL
Sample Number 26560-01 2,4-Dinitrotoluene 0.010 BQL
Sample Date 10/28/16 2,6-Dinitrotoluene 0.010 BQL
Sample Time(hrs) 0830 Di-N-Octyl phthalate 0.010 BQL
Fluoranthene 0.010 BQL
Hexachlorobenzene 0.010 BQL
Hexachlorobutadiene 0.010 BQL
Hexachlorocyclopentadiene 0.010 BQL
Hexachloroethane 0.010 BQL
Indeno(1,2,3-cd)pyrene 0.010 BQL
Isophorone 0.010 BQL
Naphthalene 0.010 BQL
Nitrobenzene 0.010 BQL
N-Nitrosodimethylamine 0.010 BQL
N-nitrosodi-n-propylamine 0.010 BQL
N-Nitrosodiphenylamine 0.010 BQL
Phenanthrene 0.010 BQL
Pyrene 0.010 BQL
1,2,4-Trichlorobenzene 0.010 BQL
4,6-dinitro-2-methyl phenol 0.010 BQL
Diethyl phthalate 0.010 BQL
Dimethyl phthalate 0.010 BQL
Fluorene 0.010 BQL
1,2-diphenyl hydrazine 0.050 BQL
Dilution Factor 1
BQL = Below Quantitation Limits
mg/L =milligrams per Liter=parts per million(ppm) Sample Number 26560-01
Sample Date 10/28/16
Sample Time(hrs) 0830

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month January
Outfall #001 Year 2017
Facility Name CITY OF'MOUNT AIRY WWTP ORC CHRIS MARION
Date of sampling October 28, 2015 Phone [phone]
Analytical Laboratory RESEARCH &ANALYTICAL LABORATORIES, INC.
Sample ' ' Quantitation Sample Units of Number of
Parameter Type Analytical Method Level,,,- Result Measurement samples
Ammonia(as N) Composite SM 4500 NH3L) 1997 0.100 0.623 MGL 1
Dissolved oxygen Grab SM 4500 OG-2001 0.050 12.34 MG/L _ 1
Nitrate/Nitrite Composite SM 4500 NO3E 0.050 15.1 MG/L 1
Total Kjeldahl nitrogen Composite HACH 10242 1.000 1.81 MG/L 1
Total Phosphorus Composite SM 4500 PE-1999 0.050 2.9 MG/L 1
Total dissolved solids Composite SM 2540 C-1997 25.000 277 MG/L 1
Hardness Composite SM 2340 C-1997 1.000 45 MG/L 1
Chlorine (total residual, TRC) Grab SM 4500-CLG-2000 4 UG/L 1
Oil and grease Grab EPA 1664 A 5.000 <5.0 MG/L 1
Metald.(fatal recoverable), cyanide and'total .heriols .; i r.' :t .,;.
,�?. Y:S b9.r/A�aAlk �a?A�ww���"imide`�1?ic+i�isyrq��{,'.R'p:G +�� y}V�.Y1311� �. .y
Antimony Composite EPA 200.7 0.025 <.005 MG/L 1
Arsenic Composite EPA 200.7 0.01 <.01 MG/L _ 1
Beryllium Composite EPA 200.7 0.001 <.001 MG/L 1
Cadmium Composite EPA 200.7 0.002 <.002 MG/L 1
Chromium Composite EPA 200.7 0.005 <.005 MG/L 1
Copper Composite EPA 200.7 0.005 <.005 MG/L 1
Lead Composite EPA 200.7 0.01 <.01 MG/L 1
Mercury Composite EPA 1631 E 0.5 6.28 NG/L 1
Nickel Composite EPA 200.7 0.01 <.01 MG/L 1
Selenium Composite EPA 200.7 0.01 <.01 MG/L 1
Silver Composite EPA 200.7 0.005 <.005 MG/L 1
Thallium Composite EPA 200.7 0.005 <.005 MG/L 1
Zinc Composite EPA 200.7 0.01 0.075 MG/L 1
Cyanide Grab SM 4500 CNE-1999 0.01 <.01 MG/L 1
Total phenolic compounds Grab EPA 420.1 0.005 0.006 MG/L 1
Volatiletrn torganic`coinpounds 1 K7 • OMV:M e . . a e Z_ ,.
Acrolein Grab EPA 624 0.1 BQL MG/L 1
Acrylonitrile Grab EPA 624 0.1 BQL MG/L 1
Benzene Grab EPA 624 0.01 BQL MG/L 1
Bromoform Grab EPA 624 0.01 BQL MG/L 1
Carbon tetrachloride Grab EPA 624 0.01 BQL MG/L 1
Chlorobenzene Grab EPA 624 0.01 BQL MG/L 1
Chlorodibromomethane Grab EPA 624 0.01 BQL MG/L 1
Chloroethane Grab EPA 624 0.01 BQL MG/L 1
2-chloroethylvinyl ether Grab EPA 624 0.01 BQL MG/L 1
Chloroform Grab EPA 624 0.01 BQL MG/L 1
Dichlorobromomethane Grab EPA 624 0.01 BQL MG/L 1
1,1-dichloroethane Grab EPA 624 0.01 BQL MG/L 1
1,2-dichloroethane Grab EPA 624 0.01 _ BQL MG/L 1
Trans-1,2-dichloroethylcnc Grab EPA 624 _ 0.01 BQL MG/L 1
Sample Sample Units of Number of
Parameter Type Analytical Method Result Measurement samples
Volatile organic compounds(Cont.)
1,1-dichloroethylene Grab EPA 624 0.01 BQL MG/L 1
1,2-dichloropropane Grab EPA 624 0.01 BQL MG/L 1
1,3-dichloropropylene Grab EPA 624 0.01 BQL MG/L 1
Ethylbenzene Grab EPA 624 0.01 BQL _ MG/L 1
Methyl bromide Grab _ EPA 624 0.01 BQL MG/L 1
Methyl chloride Grab EPA 624 0.01 BQL MG/L 1
Methylene chloride Grab EPA 624 0.01 BQL MG/L 1
1,1,2,2-tetrachloroethane Grab EPA 624 0.01 BQL MG/L 1
Tetrachloroethylene Grab EPA 624 0.01 BQL MG/L 1
Toluene Grab EPA 624 0.01 BQL MG/L 1
1,1,1-trichloroethane Grab EPA 624 0.01 BQL MG/L 1
1,1,2-trichloroethane Grab EPA 624 0.01 BQL MG/L 1
Form - DMR- PPA-1
Page 1

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month January
Outfall #001 Year 2017
Trichloroethylene Grab EPA 624 0.01 BQL MG/L 1
Vinyl chloride _ Grab EPA 624 0.01 BQL MG/L 1
Acid-extractable"compounds,' . . ,,F
if
P-chloro-m-creso Grab EPA 625 0.01 BQL MG/L 1
2-chlorophenol Grab EPA 625 0.01 BQL MG/L 1
2,4-dichlorophenol Grab EPA 625 0.01 BQL MG/L 1
2,4-dimethylphenol Grab EPA 625 0.01 BQL MG/L 1
4,6-dinitro-o-cresol Grab EPA 625 0.01 BQL MG/L 1
2,4-dinitrophenol Grab EPA 625 0.05 BQL MG/L 1
2-nitrophenol Grab EPA 625 0.01 BQL MG/L 1
4-nitrophenol Grab EPA 625 0.05 BQL MG/L 1
Pentachlorophenol Grab EPA 625 0.05 BQL MG/L 1
Phenol Grab EPA 625 0.01 BQL MG/L 1
2,4,6 trichlorophenol Grab EPA 625 0.01 BQL MG/L 1
Base-neiital co`'mpouads '..'.:`A,.: .
Acenaphthene Grab EPA 625 0.01' BQL MG/L 1
Acenaphthylene Grab EPA 625 0.01 BQL MG/L 1
Anthracene Grab EPA 625 0.01 BQL MG/L 1
Benzidine Grab EPA 625 0.05 BQL MG/L _ 1
Benzo(a)anthracene Grab EPA 625 0.01 BQL MG/L 1
Benzo(a)pyrene Grab EPA 625 0.01 BQL MG/L 1
3,4 benzofluoranthene Grab EPA 625 0.01 BQL MG/L 1
Benzo(ghi)perylene Grab EPA 625 0.01 BQL MG/L 1
Benzo(k)fluoranthene Grab EPA 625 0.01 BQL MG/L 1
Bis (2-chloroethoxy) methane Grab EPA 625 0.01 BQL MG/L 1
Bis (2-chloroethyl) ether Grab EPA 625 0.01 BQL MG/L _ 1
Bis (2-chloroisopropyl) ether Grab EPA 625 0.01 BQL f MG/L 1
Bis (2-ethylhexyl) phthalate Grab EPA 625 0.01 BQL MG/L 1 _
4-bromophenyl phenyl ether Grab EPA 625 0.01 BQL MG/L 1
Butyl benzyl phthalate Grab EPA 625 0.01 BQL MG/L 1
2-chloronaphthalene Grab _ EPA 625 0.01 BQL MG/L _ 1 _
4-chlorophenyl phenyl ether Grab EPA 625 0.01 BQL MG/L 1
Sample Quantitation Sample Units of Number of
Parameter Type Analytical Method Level Result Measurement samples
Base-neutral compounds(cont.)
Chrysene Grab EPA 625 0.01 BQL MG/L 1
Di-n-butyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Di-n-octyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Dibenzo(a,h)anthracene Grab EPA 625 0.01 BQL MG/L 1
1,2-dichlorobenzene Grab EPA 625 0.01 BQL MG/L 1
1,3-dichlorobenzene Grab EPA 625 0.01 BQL MG/L 1
1,4-dichlorobenzene Grab EPA 625 0.01 BQL MG/L 1
3,3-dichlorobenzidine Grab EPA 625 0.02 BQL MG/L 1
Diethyl phthalate Grab EPA 625 0.01 BQL MG/L 1
Dimethyl phthalate Grab EPA 625 0.01 BQL MG/L 1
2,4-dinitrotoluene Grab EPA 625 0.01 BQL MG/L 1
2,6-dinitrotoluene Grab EPA 625 0.01 BQL MG/L 1
1,2-diphenylhydrazine Grab EPA 625 0.05 BQL MG/L 1
Fluoranthene Grab EPA 625 0.01 BQL MG/L 1
Fluorene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorobenzene Grab EPA 625 0.01 BQL MG/L 1
Hexachlorobutadiene _ Grab EPA 625 0.01 BQL MG/L 1
Hexachlorocyclo-pentadiene Grab EPA 625 0.01 _ BQL MG/L 1
Hexachloroethane Grab EPA 625 0.01 BQL MG/L 1
Indeno(1,2,3-cd)pyrene Grab EPA 625 0.01 BQL MG/L 1
Isophorone Grab EPA 625 0.01 BQL MG/L 1
Naphthalene Grab EPA 625 0.01 BQL MG/L 1
Nitrobenzene Grab EPA 625 _ 0.01 BQL MG/L 1
N-nitrosodi-n-propylamine Grab EPA 625 0.01 BQL MG/L 1
N-nitrosodimethylamine Grab EPA 625 0.01 BQL MG/L 1
N-nitrosodiphenylamine Grab EPA 625 0.01 BQL MG/L 1
Form - DMR- PPA-1 Page 2
J

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month January
Outfall #001 Year 2017 I
Phenanthrene Grab EPA 625 0.01 BQL MG/L 1
1 Pyrene Grab EPA 625 0.01 BQL MG/L 1
1,2,4,-trichlorobenzene Grab EPA 625 0.01 BQL MGJL 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 of design to assure that qualified personnel properly
gathered and evaluated the information submitted. Based on my inquiry of the person or persons that
manage a age the system, or those persons directly responsible for gathering the information,rmation, 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 violati s.
Authoriz epre e tative name
a4/vim
Signature
Z- / - 7?
Date
Form - DMR- PPA-1 Page 3

Fr RESE RCII + t ANALyTICAL
IORATORIES, INC. =-.y Nc#34
Analytical/Process Consultations = RECt�P
January 20, 2017
City of Mt. Airy
P.O. Box 70
Mt. Airy, NC 27030
Attention: Chris Marion
Low Level Mercury Analysis
RAL Low Level
Sample Sample Sample Sample Mercury *
Identification Number Date Time (n<g/L)
Effluent 29312-02 01/10/17 0800 6.28
Field Blank 29312-01 01/10/17 0800 <1.0
Sample analyzed by Meritech, Inc. (NC WW Cert#165)
n�z L — nanograms per Liter < = Less than or below detection limit

�-. Y RESEARCH & ANALyTICAL Report of Anal Analysis
'�'' LAbORATORIES� INC. 1/26/2017
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For: City of Mount Airy WWTP 4J `� , .... .ANAL TiCie
PO Box 70 :� :.{ ;'•�t,� .•`� 'L
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Client Sample ID: Plant Effluent Lab Sample ID: 29325-01
Site: City of Mt Airy WWTP Collection Date: 1/10/2017 8:00
Parameter Method Result Units Rep Limit Analyst Analysis Date/Time
Ammonia Nitrogen SM 4500 NH3 D-1997 0.623 mg/L 0.1 JB 1/16/2017
Antimony, Total EPA 200.7 <0.005 mg/L 0.005 KL 1/11/2017
Arsenic, Total EPA 200.7 <0.01 mg/L 0.01 KL 1/11/2017
Beryllium,Total EPA 200.7 <0.001 mg/L 0.001 KL 1/11/2017
Cadmium,Total EPA 200.7 <0.002 mg/L 0.002 KL 1/11/2017
Chromium, Total EPA 200.7 <0.005 mg/L 0.005 KL 1/11/2017
Copper, Total EPA 200.7 <0.005 mg/L 0.005 KL 1/11/2017
Cyanide SM 4500 CN E-1999 <0.01 mg/L 0.01 AW 1/13/2017
Dissolved Solids SM 2540 C-1997 277 mg/L 25 AW 1/12/2017
Hardness, Total SM 2340 C-1997 45.0 mg/L 1 AP 1/18/2017
Lead,Total EPA 200.7 <0.01 mg/L 0.01 KL 1/11/2017
Nickel, Total EPA 200.7 <0.01 mg/L 0.01 KL 1/11/2017
Nitrate + Nitrite SM 4500 NO3 E-2000 15.1 mg/L 0.05 DW 1/10/2017 1610
Nitrate Nitrogen SM 4500 NO3 E-2000 15.1 mg/L 0.05 DW 1/10/2017 1610
Nitrite Nitrogen SM 4500 NO2 B-2000 <0.01 mg/L 0.01 DW 1/10/2017
Oil& Grease EPA 1664 B <5 mg/L 5 DN 1/11/2017
Phenols EPA 420.1 0.006 mg/L 0.005 DW 1/16/2017
Selenium, Total EPA 200.7 <0.01 mg/L 0.01 KL 1/11/2017
w.._....__ _,ge.__
P.O Box 473 106 Short Street Kernersville, North Carolina 27284 Tel: [phone] Fax: wvw
336-996-0326 v.randalabs.com Pa1
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RESEARCh & ANAEyTICAE Report of Analysis
• p y
r; LABORATORIES, INC. 1/26/2017
Client Sample ID: Plant Effluent Lab Sample ID: 29325-01
Site: City of Mt Airy WWTP Collection Date: 1/10/2017 8:00
Parameter Method Result Units Rep Limit Analyst Analysis DateiTime
Silver,Total EPA 200.7 <0.005 mg/L 0.005 KL 1/11/2017
Thallium,Total EPA 200.7 <0.005 mg/L 0.005 KL 1/11/2017
Total Kjedjahl Nitrogen Hach 10242 1.81 mg/L 1 MZ 1/13/2017
Total Phosphorous SM 4500 P E-1999 2.90 mg/L 0.05 LP 1/20/2017
Zinc,Total EPA 200.7 0.075 mg/L 0.01 KL 1/11/2017
NA=not analyzed
P.O.Box 473 106 Short Street Kernersville, North Carolina 27284 Tel:[phone] Fax:[phone] www.randalabs.com Page 2
ral coa basic v1d

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RESEARCIi • ANALyTICA� b `�',,..tee
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LAbORATORI ESQ INC. '':or'o �' -
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Analytical/Process Consultations %,�; Gee,:/ $
chemical Analysis for Selected Parameters and Water Sample Identified as Plant Effluent
4 City of Mount Airy WWTP Project, collected 10 January 2017)
I. Volatile Organics Quantitation Plant II. Semi-volatile Organics Quantitation Plant
EPA Method 624 Limit Effluent Method 625 Limit Effluent
Parameter (mp/LI (mE/L) Parameter (mg/L) (mg/L)
Methylene Chloride 0.010 BQL 4-Chloro-3-methylphenol 0.010 BQL
Trichlorofluoromethane 0.010 BQL 2-Chlorophenol 0.010 BQL
1,1-Dichloroethene 0.010 BQL 2,4-Dichlorophenol 0.010 BQL
1,1-Dichloroethane 0.010 BQL 2,4-Dimethylphenol 0.010 BQL
Chloroform 0.010 BQL 2,4-Dinitrophenol 0.050 BQL
Carbon Tetrachloride 0.010 BQL 2-Methyl-4,6-dinitrophenol 0.050 BQL
1,2-Dichloropropane 0.010 BQL 2-Nitrophenol 0.010 BQL
Trichloroethene 0.010 BQL 4-Nitrophenol 0.050 BQL
Dibromochloromethane 0.010 BQL Pentachlorophenol 0.050 BQL
1,1,2-Trichloroethane 0.010 BQL Phenol 0.010 BQL
Tetrachloroethene 0.010 BQL 2,4,6-Trichlorophenol 0.010 BQL
Chlorobenzene 0.010 BQL Acenaphthene 0.010 BQL
Trans-1,2-Dichloroethene 0.010 BQL Acenaphthylene 0.010 BQL
1,2-Dichloroethane 0.010 BQL Anthracene 0.010 BQL
1,1,1-Trichloroethane 0.010 BQL Benzidine 0.050 BQL
Bromodichloromethane 0.010 BQL Benzo(a)anthracene 0.010 BQL
Cis-1,3-Dichloropropene 0.010 BQL Benzo(a)pyrene 0.010 BQL
Benzene 0.010 BQL Benzo(b)fluoranthene 0.010 BQL
Trans-1,3-Dichloropropene 0.010 BQL Benzo(ghi)perylene 0.010 BQL
Bromoform 0.010 BQL Benzo(k)fluoranthene 0.010 BQL
1,1,2,2-Tetrachloroethane 0.010 BQL Benzyl butyl phthalate 0.010 BQL
Toluene 0.010 BQL Bis(2-chloroethoxy)methane 0.010 BQL
Ethyl Benzene 0.010 BQL Bis(2-chloroethyl)ether 0.010 BQL
Chloromethane 0.010 BQL Bis(2-chloroisopropyl)ether 0.010 BQL
Bromomethane 0.010 BQL Bis(2-ethyl-hexyl)phthalate 0.010 BQL
Vinyl Chloride 0.010 BQL 4-Bromophenyl phenyl ether 0.010 BQL
Chloroethane 0.010 BQL 2-Chloronaphthalene 0.010 BQL
Total Xylenes 0.010 BQL 4-Chlorophenyl phenyl ether 0.010 BQL
Acrolein 0.100 BQL Chrysene 0.010 BQL
Acrylonitrile 0.100 BQL Dibenzo(a,h)anthracene 0.010 BQL
2-Chloroethyl vinyl ether 0.010 BQL 1,2-Dichlorobenzene 0.010 BQL
1,3-Dichlorobenzene 0.010 BQL
Dilution Factor 1 1,4-Dichlorobenzene 0.010 BQL
3,3-Dichlorobenzidine 0.020 BQL
Di-N-Butyl phthalate 0.010 BQL
Sample Number 29325-01 2,4-Dinitrotoluene 0.010 BQL
Sample Date 01/10/17 2,6-Dinitrotoluene 0.010 BQL
Sample Time(hrs) 0800 Di-N-Octyl phthalate 0.010 BQL
Fluoranthene 0.010 BQL
Hexachlorobenzene 0.010 BQL
Hexachlorobutadiene 0.010 BQL
Hexachlorocyclopentadiene 0.010 BQL
Hexachloroethane 0.010 BQL
lndeno(1,2,3-cd)pyrene 0.010 BQL
Isophorone 0.010 BQL
Naphthalene 0.010 BQL
Nitrobenzene 0.010 BQL
N-Nitrosodimethylamine 0.010 BQL
N-nitrosodi-n-propylamine 0.010 BQL
N-Nitrosodiphenylamine 0.010 BQL
Phenanthrene 0.010 BQL
Pyrene 0.010 BQL
1,2,4-Trichlorobenzene 0.010 BQL
4,6-dinitro-2-methyl phenol 0.010 BQL
Diethyl phthalate 0.010 BQL
Dimethyl phthalate 0.010 BQL
Fluorene 0.010 BQL
1,2-diphenyl hydrazine 0.050 BQL
Dilution Factor 1
BQL = Below Quantitation Limits
mg/L =milligrams per Liter=parts per million(ppm) Sample Number 29325-01
Sample Date 01/10/17
Sample Time(hrs) 0800

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART E. TOXICITY TESTING DATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the facility's
discharge points: 1)POTWs with a design flow rate greater than or equal to 1.0 mgd;2)POTWs with a pretreatment program(or those that are required to
have one under 40 CFR Part 403);or 3)POTWs required by the permitting authority to submit data for these parameters.
• At a minimum,these results must include quarterly testing for a 12-month period within the past 1 year using multiple species(minimum of two
species),or the results from four tests performed at least annually in the four and one-half years prior to the application,provided the results show no
appreciable toxicity,and testing for acute and/or chronic toxicity,depending on the range of receiving water dilution. Do not include information on
combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted using 40 CFR Part
136 methods. In addition,this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC requirements for
standard methods for analytes not addressed by 40 CFR Part 136.
• In addition,submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test conducted
during the past four and one-half years revealed toxicity,provide any information on the cause of the toxicity or any results of a toxicity reduction
evaluation, if one was conducted.
• If you have already submitted any of the information requested in Part E,you need not submit it again. Rather,provide the information requested in
question E.4 for previously submitted information. If EPA methods were not used,report the reasons for using alternate methods. If test summaries
are available that contain all of the information requested below,they may be submitted in place of Part E.
If no biomonitoring data is required,do not complete Part E. Refer to the Application Overview for directions on which other sections of the form to complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests conducted in the past four and one-half years.
23 chronic ❑ acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one column
per test(where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number: 001 Test number 002 Test number: 003
a. Test information.
Test Species&test method number Pimephales Promelas#1000 Pimephales Promelas#1000 Pimephales Promelas#1000
Age at initiation of test <48 Hrs <48 Hrs <48 Hrs
Outfall number 001 001 001
Dates sample collected 7-6, 9, 13-2015 10-3, 6, 9-2016 1-9 ,12, 15-2017
Date test started 7-8-2015 10-5-2016 1-11-2017
Duration 7 Days 7 Days 7 Days
b. Give toxicity test methods followed.
Short term methods estimating Short term methods estimating Short term methods estimating
Manual title I the chronic toxicity of effluents the chronic toxicity of effluents the chronic toxicity of effluents
and receiving water to fresh and receiving water to fresh and receiving water to fresh
water organisms. water organisms. water organisms.
Edition number and year of Third Edition EPA 600-4-91-002 Third Edition EPA 600-4-91-002 Third Edition EPA 600-4-91-002
publication July, 1994 July, 1994 July, 1994
Page number(s) 58-113 58-113 58-113
c. Give the sample collection method(s)used. For multiple grab samples,indicate the number of grab samples used.
24-Hour composite 3 3 3
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination X X X
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 15 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, N00021121 Renewal Yadkin Pee-Dee
Test number: 001 Test number: 002 Test number: 003
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected: Chlorine Contact Chamber Chlorine Contact Chamber Chlorine Contact
Effluent Effluent Chamber Effluent
f. For each test,include whether the test was intended to assess chronic toxicity,acute toxicity,or both
Chronic toxicity X X X
Acute toxicity
g. Provide the type of test performed.
Static
Static-renewal X X X
Flow-through
h. Source of dilution water. If laboratory water,specify type;if receiving water,specify source.
Laboratory water EPA Synthetic Water EPA Synthetic Water EPA Synthetic Water
Receiving water
i. Type of dilution water. If salt water,specify"natural"or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
0, 21, 31.5,42, 63, 84 0, 21,31.5, 42, 63, 84 0, 21, 31.5, 42, 63, 84
•
•
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH Yes Yes Yes
Salinity N/A N/A N/A
Temperature Yes Yes Yes
Ammonia N/A N/A N/A
Dissolved oxygen Yes Yes Yes
I. Test Results.
Acute:
Percent survival in 100%
effluent
LCso
95%C.I. %
Control percent survival ok 0/0
Other(describe)
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 16 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
Chronic:
NOEC 84% 84% 84%
IC25
Control percent survival 100 % 100 % 100 70
Other(describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available? No No No
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run(MM/DD/YYYY)?
Other(describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
❑ Yes ® No If yes,describe: _
E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information,or information regarding the
cause of toxicity,within the past four and one-half years,provide the dates the information was submitted to the permitting authority and a summary
of the results.
Date submitted: / / (MM/DD/YYYY)
Summary of results: (see instructions)
See Attachment-Biomonitorinq Test Information Summary _
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
j — OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 17 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART E. TOXICITY TESTING DATA
POTWs meeting one or more of the following criteria must provide the results of whole effluent toxicity tests for acute or chronic toxicity for each of the facility's
discharge points: 1)POTWs with a design flow rate greater than or equal to 1.0 mgd;2)POTWs with a pretreatment program(or those that are required to
have one under 40 CFR Part 403);or 3)POTWs required by the permitting authority to submit data for these parameters.
• At a minimum,these results must include quarterly testing for a 12-month period within the past 1 year using multiple species(minimum of two
species),or the results from four tests performed at least annually in the four and one-half years prior to the application, provided the results show no
appreciable toxicity,and testing for acute and/or chronic toxicity,depending on the range of receiving water dilution. Do not include information on
combined sewer overflows in this section. All information reported must be based on data collected through analysis conducted using 40 CFR Part
136 methods. In addition,this data must comply with QA/QC requirements of 40 CFR Part 136 and other appropriate QA/QC requirements for
standard methods for analytes not addressed by 40 CFR Part 136.
• In addition,submit the results of any other whole effluent toxicity tests from the past four and one-half years. If a whole effluent toxicity test conducted
during the past four and one-half years revealed toxicity,provide any information on the cause of the toxicity or any results of a toxicity reduction
evaluation,if one was conducted.
• If you have already submitted any of the information requested in Part E,you need not submit it again. Rather,provide the information requested in
question E.4 for previously submitted information. If EPA methods were not used,report the reasons for using alternate methods. If test summaries
are available that contain all of the information requested below,they may be submitted in place of Part E.
If no biomonitorin.data is re•uired,do not com.lete Part E. Refer to the A..lication Overview for directions on which other sections of the form to complete.
E.1. Required Tests.
Indicate the number of whole effluent toxicity tests conducted in the past four and one-half years.
23® chronic ❑ acute
E.2. Individual Test Data. Complete the following chart for each whole effluent toxicity test conducted in the last four and one-half years. Allow one column
per test(where each species constitutes a test). Copy this page if more than three tests are being reported.
Test number: 004 Test number: Test number:
a. Test information.
Test Species&test method number Pimephales Promelas#1000
Age at initiation of test <48 Hrs
Outfall number 001
Dates sample collected 4-9, 12, 15-2018
Date test started 4-11-2018
Duration 7 Days
b. Give toxicity test methods followed.
Short term methods estimating
Manual title the chronic toxicity of effluents
and receiving water to fresh
water organisms.
Edition number and year of Third Edition EPA 600-4-91-002
publication July, 1994
Page number(s) 58-113
c. Give the sample collection method(s)used. For multiple grab samples,indicate the number of grab samples used.
24-Hour composite 3
Grab
d. Indicate where the sample was taken in relation to disinfection. (Check all that apply for each.
Before disinfection
After disinfection
After dechlorination X
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 15 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
Test number: 004 Test number: Test number:
e. Describe the point in the treatment process at which the sample was collected.
Sample was collected: Chlorine Contact Chamber
Effluent
f. For each test,include whether the test was intended to assess chronic toxicity,acute toxicity,or both
Chronic toxicity X
Acute toxicity
g. Provide the type of test performed.
Static
Static-renewal X
Flow-through
h. Source of dilution water. If laboratory water,specify type;if receiving water,specify source.
Laboratory water EPA Synthetic Water
Receiving water
i. Type of dilution water. If salt water,specify"natural"or type of artificial sea salts or brine used.
Fresh water
Salt water
j. Give the percentage effluent used for all concentrations in the test series.
0, 21, 31.5,42, 63, 84
k. Parameters measured during the test. (State whether parameter meets test method specifications)
pH Yes
Salinity N/A
Temperature Yes
Ammonia N/A
Dissolved oxygen Yes
I. Test Results.
Acute:
Percent survival in 100% %
effluent
LCSo
95%C.I. cyo
Control percent survival
Other(describe)
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 16 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
Chronic:
NOEC 84%
C25 % 0
/0 %
Control percent survival 100
Other(describe)
m. Quality Control/Quality Assurance.
Is reference toxicant data available? No
Was reference toxicant test within
acceptable bounds?
What date was reference toxicant test
run(MM/DD/YYYY)?
•
Other(describe)
E.3. Toxicity Reduction Evaluation. Is the treatment works involved in a Toxicity Reduction Evaluation?
❑ Yes ® No If yes,describe:
E.4. Summary of Submitted Biomonitoring Test Information. If you have submitted biomonitoring test information,or information regarding the
cause of toxicity,within the past four and one-half years,provide the dates the information was submitted to the permitting authority and a summary
of the results.
Date submitted: / / (MM/DD/YYYY)
Summary of results: (see instructions)
See Attachment—Biomonitorinq Test Information Summary
END OF PART E.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 17 of 22

Effluent Toxicity Report Form-Chronic Fathead Minnow Multi-Concentration Test Date:7/17/2015
Facility: City of Mt Airy NPDES#NCO() 21121 Pipe#: 001 County. Surry
Laborato.• 'esearch&Analytical Laboratories Comments Final Effluent
x / (,....^ -
Signat - .-•.•-r7rr in ponsible Charge
x 6172-01,6400-01,6445-01
Si aur- of abor ry Supervisor
NIHIL ORIC1\AL 10: Environmental Sciences Branch
Division of Water Quality
NC DENK
1621 Mail Service Center
Raleigh,NC 27699-1621
Test Initiation Date/Time 7/8/2015 / 1345pm Avg Wt/Surv. Control 0.8825 Test Organisms
Eff. Repl. 1 2 3 4 r Cultured In-House
Control Surviving# 15 15 15 15 %Survival 100.0 r Outside Supplier
Original# 15 15 15 15
Wt/original(mg) 1.0140 0.7680 - 0.9167 0.8313 ' Avg Wt(mg) 0.8825 Hatch Date: 7/6/2015
21 Surviving# 15 15 15 15 %Survival 100.0 Hatch Time: >1600
Original# 15 -15 15 15
Wt/original(mg) 0.8707 0.8593 0.9213 0.9927 Avg Wt(mg) 0.9110
31.5 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 - 15 15
Wt/original(mg) 1.0193 1.0040 0.9400 0.8947 Avg Wt(mg) 0.9645
42 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 ' 15
Wt/original(mg) 1.1340 0.9533 1.0340 1.0467 Avg Wt(mg) 1.0420
63 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 15
WI/original(mg) 0.8980 1.0080 0.9147 0.9960 Avg Wt(mg) 0.9542
84 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 15
Wt/original(mg) 1.1100 1.1367 0.9040 0.9933 Avg Wt(mg) 1.0360
Water Quality Data Day
Control 0 1 2 3 4 5 6
pH(SU)IniUFin 6.95 / 6.98 6.99 / 7.01 7.00 / 6.99 7.01 / 6.98 7.00 / 7.04 6.99 / 7.06 7.04 / 7.07
DO(mg/L) Init/Fin 8.5 / 8.4 8.5 / 8.3 8.5 / 8.1 8.5 / 8.1 8.5 / 7.6 8.5 / 7.5 8.5 / 7.4
Temp(C)IniUFin 24.5 / 24.6 24.6 / 24.5 24.5 / 24.6 24.6 / 24.5 24.5 / 24.6 24.6 / 24.5 24.5 / 24.6
High Concentration 0 1 2 3 4 5 6
pH(SU)Init/Fin 6.89 / 7.00 6.99 / 7.04 7.01 / 7.20 7.17 / 7.20 7.26 / 7.28 7.30 / 7.24 7.22 / 7.30
DO(mg/L)Int/Fin 8.5 / 8.4 8.5 / 8.4 8.5 / 8.2 8.5 / 8.0 8.5 / 7.8 8.5 / 7.7 8.5 / 7.6
Temp(C)Init/Fin 24.5 / 24.6 24.6 / 24.5 24.5 # 24.6 24.6 / 24.5 24.5 / 24.6 24.6 / 24.5 24.5 / 24.6
Sample 1 2 3 Survival Growth Overall Result
Collection Start Date 7/6/2015 7/9/2015 7/12/2015 Normal r'i PI ChV >84
Grab Hom.Var. ri Fl
Composite(Duration) 24hrs 24hrs 24hrs NOEC 84% 84%
Hardness(mg/L) 40 40 45LOEC 84% 84%
-
Alkalinity(mg/L) 36 38 36 ChV >84% >84%
Conductivity(umhos/cm) 339 _ 381 378 Method Steels Dunnet
Chlorine(mg/L) 0.06 0.02 0.03
Temp. at Receipt(SC) 2.5 2.1 0.9 Stats Survival Growth
Conc. Critical Calculated Critical Calculated
Dilution H2O 21 10 20 2.41 -0.5022
Hardness(mg/L) 48 31.5 10 22 2.41 -1.4449
Alkalinity(mg/L) 38 42 10 25 2.41 -2.8105
Conductivity(umhos/cm) 190 63 10 20 2.41 -1.2629
84 10 23 2.41 -2.7047
DWQ Form AT-5(1/04)

Effluent Toxicity Report Form-Chronic Fathead Minnow Multi-Concentration Test Date:10/14/2016
amity: City of Mt.Airy 'I • 1 III 21121 'ipe r: 001 ounty: Surry
Lab• ato• . 'e6;4&.4,8 Analytical Laboratories Comments Final Effluent
x /_• 4V5 .
ignatS •1&iBrt irr 'esponsl•e arge
x wa .
ign. ure . r a•• a •ry upervisor RAL#25376-61,25620-01,25686-01
• . I• I: nvironmenta crences :'rant
Division of Water Quality
NC DENR I
1621 Mail Service Center
Raleigh,NC 27699-1621
Test Initiation Date/Time 10/5/2016 / 2:13 PM Avg WUSurv.Control(' 0.9222 Test Organisms
%Eff. Repl. 1 2 3 4 r Cultured In-House
Control Surviving# 15 15 15 15 %Survival` 100.01 7, Outside Supplier
Original# 15 15 15 15 -
Wt./original(mg) 0.9787 0.8807 0.8867 0.9427 Avg Wt(mg)1 0.92221 Hatch Date: 10/3/2016
21.00 Surviving# 15 15 15 15 %Survival` 100.01 Hatch Time: >1600
Original# 15 15 15 15
Wt/original(mg) 0.9460 0.8793 0.8247 0.8807 Avg Wt(mg)' 0.88271 I
31.50 Surviving# 15 15 15 14 1 %Survival` 98.31
Original# 15 15 15 15
Wt/original(mg) 0.7873 0.8747 0.9520 0.9400 Avg Wt(mg)1 0.88851
1 42.001 Surviving# 14 15 15 14 %Survival[ 96.71
Original# 15 15 15 15
Wt/original(mg) 0.9850 0.8880 0.8080 0.9436 Avg Wt(mg)1 0.90621
63.00 Surviving# 15 15 15 15 %Survival' 100.01
Original# 15 15 15 15
Wt/original(mg) 0.8827 0.8207 0.8900 0.9140 Avg.Wt(mg)' 0.87691
84.00 Surviving# 15 15 14 14 %Survival` 96.71
Original# 15 15 15 15
Wt/original(mg) 0.8973 0.8340 0.9143 0.7721 Avg Wt(mg)1 0.85441
Water Quality Data Day
Control 0 1 2 3 4 5 6
pH(SU)Init/Fin 7.28 / 6.98 7.21 / 6.92 7.24 / 6.87 7.29 / 6.85 7.29 / 7.01 7.21 / 6.97 7.22 / 6.90
DO(mg/L) Init/Fin 8.4 / 7.5 8.4 / 7.7 8.5 / 7.3 8.5 / 7.7 8.3 / 7.6 8.2 / 7.8 8.5 / 7.7
Temp(C)Init/Fin 24.8 / 25.1 24.5 / 24.5 24.5 / 24.6_24.5 / 24.4 24.6 / 24.5 24.5 / 24.4 24.5 / 24.5
High Concentration 0 1 2 3 4 5 6
pH(SU)!nit/Fin 7.41 / 7.21 7.36 / 7.22 7.40 / 7.29 7.45 / 7.31 7.40 / 7.29 7.39 / 7.22 7.32 / 7.19
DO(mg/L)Int/Fin 8.6 / 7.9 8.5 / 8.0 8.5 / 7.9 8.6 / 8.0 8.5 / 7.9 8.5 / 7.7 8.7 / 7.8
Temp(C)IniUFin 24.5 / 25.1 24.5 / 24.5 24.5 / 24.6 24.5 / 24.4 24.6 / 24.5 24.4 / 24.4 24.5 / 24.5
Sample 1 2 3 Survival Growth Overall Result
Collection Start Date 10/3/2016 10/6/2016 10/9/2016 Normal Irl) Fl° ChV 1>84 1
Grab Hom.Var. ri= F1.-
Composite(Duration) 24 24 24 NOEC 84.00 84.00
Hardness(mg/L) 51 54 50 LOEC 84% 84%
I Alkalinity(mg/L) 43 38 34 ChV >84% >84�,
Conductivity(umhoslcm) 391 401 482 Method Steels Dunnetts
Chlorine(mg/L) 0.02 0.02 0.04
Temp.at Receipt(°C) 4.0 4.0 4.0 Stats Survival Growth
Conc. Critical Calculated Critical Calculated
Dilution H2O 21.00 10 13.5 2.41 0.9228
Hardness(mg/L) 48 31.50 10 15 2.41 0.7868
Alkalinity(mg/L) 39 42.00 10 19 2.41 0.3747
I Conductivity(umhos/cm) 191 63.00 10 15
2.41 1.0588
84.00 10 14 2.41 1.5824
DWQ Form AT-5(1/04)

Effluent Toxicity Report Form-Chronic Fathead Minnow Multi-Concentration Test Date:1/19/2017
aciity: City of Mt.Airy PD 1 1 10 21121 •ipe •: 001 ounty: Surry
Laborato .41-esearch&Analytical Laboratories Comments Final Effluent
X r 1
Signat�.:�/ r.r ' esponsi6le Charge
X
Sig ur- . I abo�ory Supervisor RAL#29311-01,29556-01,29618-01
MAIL ORIGINAL 10: Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh,NC 27699-1621
Test Initiation Date/Time 1/11/2017 / 1:59 PM Avg Wt/Surv.Control 0.7858 Test Organisms
%Eff. Repl. 1 2 3 4 r` Cultured In-House
Control Surviving# 15 15 15 15 %Survival 100.01 I Outside Supplier
Original# 15 15 15 15
Wt/original(mg) 0.8873 0.7513 0.7393 0.7653Avg Wt(mg) 0.7858 Hatch Date: 1/9/2017
21.00 Surviving# 15 15 15 15 %Survival 100.01 Hatch Time: >1600
Original# 15 15 15 15
Wt/original(mg) 0.7680 0.7820 0.6907 0.7420 Avg Wt(mg)L_0.74571
31.50 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 15
Wt/original(mg) 0.7140 0.6827 0.8560 0.7067 Avg Wt(mg) 0.7399
42.001 Surviving# 14 15 15 15 %Survivall 98.31
Original# 15 15 15 15
Wt/original(mg) 0.8029 0.7787 0.8160 0.7373 Avg Wt(mg) 0.7830
63.00 Surviving# 14 14 15 15 %Survivall 96.71
Original# 15 15 15 15
Wt/original(mg) 0.8150 0.7371 0.7353 0.7707 Avg Wt(mg) 0.76451
84.00 Surviving# 14 15 15 14 %Survivall 96.71
Original# 15 15 15 15
Wt/original(mg) 0.8343 0.8387 0.8540 0.7793 Avg Wt(mg) 0.8266
Water Quality Data Day
Control 0 1 2 3 4 5 6
pH(SU)Init/Fin 7.24 / 7.29 7.21 / 7.27 7.30 / 7.29 7.29 / 7.29 7.22 / 7.27 7.18 / 7.35 7.30 / 7.11
DO(mg/L) Init/Fin 8.4 / 8.1 8.6 / 8.1 8.6 / 8.4 8.6 / 8.2 8.5 / 7.9 8.4 / 8.0 8.6 / 8.0
Temp(C)Init/Fin 24.7 / 24.4 24.5 / 24.2 24.5 / 24.4 24.5 / 24.5 24.4 / 24.4 2.5 / 24.6 24.4 / 24.5
I High Concentration 0 1 2 3 4 5 6
pH(SU)Init/Fin 7.12 / 7.17 7.13 / 7.16 7.19 / 7.10 7.15 / 7.08 7.12 / 7.04 7.21 / 7.17 7.23 / 7.12
DO(mg/L)Int/Fin 8.6 / 7.8 8.3 / 7.7 8.4 / 8.0 8.5 / 8.1 8.6 / 7.9 8.5 / 7.9 8.3 / 8.0
Temp(C)Init/Fin 25.0 / 24.5 24.5 / 24.4 24.7 / 24.4 24.5 / 24.5 24.5 / 24.4 24.4 / 24.4 24.6 / 24.5
ISample 1 2 3 Survival Growth Overall Result
Collection Start Date 1/9/2017 1/12/2017 1/15/2017 Normal F1' 9.�1, ChV 1>84 1
Grab Hom.Var. n!'! Fl
IComposite(Duration) 24 24 24 NOEC 84.00 84.00
Hardness(mg/L) 53 49 53 LOEC 84% 84%
Alkalinity(mg/L) 35 41 39 ChV >84% >84%
Conductivity(umhos/cm) 439 431 460 Method Steels Dunnetts
Chlorine(mg/L) 0.03 0.02 0.04
Temp.at Receipt(°C) 3.0 2.3 2.7 Stats Survival Growth
Conc. Critical Calculated Critical Calculated
131.50
H2O 21.00 10 17 2.41 1.0940
Hardness(mg/L) 48 31.50 10 13 2.41 1.2528
Alkalinity(mg/L) 37 42.00 10 19 2.41 0.0566
Conductivity(umhos/cm) 190 63.00 10 16 2.41 0.5801
I84.00 10 22 2.41 -1.1117
DWQ Form AT-5(1/04)

Effluent Toxicity Report Form-Chronic Fathead Minnow Multi-Concentration Test Date:4/24/2018
Facility: City of Mt.Airy NPDES#NCOO 21121 Pipe#: 001 County: Surry
Laboratory: Rese- y ; Analytical abor-tories Comments Final Effluent
x �`,a i /fie„` -
Sign re .• ..`=' 'e ponsible harge
xr
Si aur t L•/ratory bupervisor RAL#49049-01,49260-01,49346-01
MAIL ORIGINAL TO: Environmental Sciences Branch
Division of Water Quality
NC DENR
1621 Mail Service Center
Raleigh,NC 27699-1621
.....
Test Initiation Date/Time 4/11/2018 / 3:13PM Avg WVSurv.Control 0.7530 Test Organisms
%Eff. Repl. 1 2 3 4
r Cultured In-House
Control Surviving# 15 15 15 15 %Survivals 100.0 17 Outside Supplier
Original# 15 15 15 15
Wt/original(mg) 0.6887 0.7667 0.7553 0.8013 Avg Wt(mg) 0.7530 Hatch Date: 4/9/2018
21.00 Surviving# 15 15 15 15 %Survival 100.0 Hatch Time: >1600
Original# 15 15 15 15
Wt/original(mg) 0.7373-..--0.8260- 0.7440 0.7173 Avg Wt(mg)1 - 0.75621
31.50 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 15
Wt/original(mg) 0.7700 0.7273 0.7613 0.6993 Avg Wt(mg) 0.7395
42.00 Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 15
Wt/original(mg) 0.9027 0.7853 0.8353 0.7153 Avg Wt(mg) 0.8097
63.00 Surviving# 15 15 15 15 %Survival! 100.01
Original# 15 15 15 15
Wt/original(mg) 0.7480 0.7453 0.7220 0.6260 Avg Wt(mg) 0.7103
84.00, Surviving# 15 15 15 15 %Survival 100.0
Original# 15 15 15 15
Wt/original(mg) 0.7253 0.5987 0.7667 0.6833 Avg Wt(mg) 0.6935
Water Quality Data Day
Control 0 1 2 3 4 5 6
pH(SU)Init/Fin 7.19 / 7.14 7.20 / 7.06 7.16 / 7.08 7.19 / 7.10 7.21 / 7.14 7.22 / 7.01 7.27 / 7.07
DO(mg/L) Init/Fin 8.6 / 8.2 8.6 / 8.3 8.5 / 8.1 8.6 / 8.2 8.5 / 8.1 8.5 / 8.0 8.5 / 8.1
Temp(C)Init/Fin 24.5 I 24.8 24.7 / 24.7 24.4 / 24.7 24.6 / 24.5 24.7 / 24.6 24.7 / 24.6 24.5 / 24.6
High Concentration 0 1 2 3 4 5 6
pH(SU)Init/Fin 7.54 / 7.50 7.64 / 7.11 7.31 / 7.19 7.40 / 7.16 7.39 / 7.20 7.44 / 7.27 7.39 / 7.30
DO(mg/L)Int/Fin 8.5 / 8.3 8.5 / 8.2 8.5 / 8.3 8.6 / 8.2 8.6 / 8.1 8.6 / 8.2 8.5 / 8.2
Temp(C)Init/Fin 24.4 / 24.7 24.6 / 24.5 24.4 / 24.7 24.6 / 24.7 24.7 / 24.7 24.6 / 24.5 24.6 / 24.7
Sample 1 2 3 Survival Growth Overall Result
Collection Start Date 4/9/2018 4/12/2018 4/15/2018 Normal ri Fl ChV 1717477-1
Grab _ Hom.Var. r n
Composite(Duration) 24 24 24 NOEC 84.00 84.00
Hardness(mg/L) 54 50 52 LOEC >84% >84%
Alkalinity(mg/L) 40 37 34 ChV >84% >84%
Conductivity(umhos/cm) 441 507 259 Method Steels Dunnetts
Chlorine(mg/L) 0.03 0.03 0.02
Terre.at Receipt(°C) 3.0 3.0 _ 3.0 Stats Survival Growth
Conc. Critical Calculated Critical Calculated
Dilution H2O 21.00 10 17 2.41 -0.0766
Hardness(mg/L) 47 31.50 10 17 2.41 0.3289
Alkalinity(mg/L) 38 42.00 10 22 2.41 -1.3775
Conductivity(umhos/cm) 190 63.00 10 13 2.41 1.0377
84.00 10 13.5 2.41 1.4468
DWQ Form AT-5(1/04)

Biomonitoring Test Information Summary for Mount Airy WWTP
for NPDES Permit Renewal — August 20, 2018
Collection Dates Test Date Results
1/6/14— 1/9/14 1/8/14 100% survival at 42% Effluent
3/31/14—4/3/14 4/2/14 100% survival at 42% Effluent
7/7/14—7/10/14 7/9/14 100% survival at 42% Effluent
10/6/14— 10/9/14 10/8/14 100% survival at 42% Effluent
1/5/15 — 1/8/15 1/7/15 100% survival at 42% Effluent
4/6/15 —4/9/15 4/8/15 100% survival at 42% Effluent
7/6/15 —7/10/15 7/8/15 100% survival at 42%Effluent
10/12/15 — 10/15/15 10/14/15 100% survival at 42% Effluent
1/4/16— 1/7/16 1/6/16 100% survival at 42% Effluent
4/4/16 - 4/7/16 4/6/16 100% survival at 42%Effluent
7/11/16—7/14/16 7/13/16 100% survival at 42%Effluent
10/3/16— 10/7/16 10/5/16 100% survival at 42%Effluent
1/9/17— 1/13/17 1/11/17 100% survival at 42%Effluent
4/3/17—4/6/17 4/5/17 100% survival at 42%Effluent
7/10/17—7/13/17 7/12/17 100% survival at 42%Effluent
10/9/17— 10/12/17 10/11/17 100% survival at 42%Effluent
1/8/18— 1/11/18 1/10/18 100% survival at 42%Effluent
4/9/18 —4/13/18 4/11/18 100% survival at 42% Effluent
7/9/18 —7/12/18 7/11/18 100% survival at 42% Effluent
All Samples were collected from outfall #001. Test Species and test method
number were: Cerpdaphnia dubia#1002. Manual title — Short term methods
estimating the chronic toxicity of effluents and receiving water to fresh water
organisms —Third Edition EPA 600-4-91-002 July, 1994; pages 144-195

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
SUPPLEMENTAL APPLICATION INFORMATION
PART F.INDUSTRIAL USER DISCHARGES AND RCRA/CERCLA WASTES
All treatment works receiving discharges from significant industrial users or which receive RCRA,CERCLA,or other remedial wastes must
complete part F.
GENERAL INFORMATION:
F.1. Pretreatment program. Does the treatment works have,or is subject ot,an approved pretreatment program?
® Yes ❑ No
F.2. Number of Significant Industrial Users(SIUs)and Categorical Industrial Users(CIOs). Provide the number of each of the following types of
industrial users that discharge to the treatment works.
a. Number of non-categorical SIUs. 1
b. Number of CIUs.
SIGNIFICANT INDUSTRIAL USER INFORMATION:
Supply the following information for each SIU. If more than one SIU discharges to the treatment works,copy questions F.3 through F.8 and
provide the information requested for each SIU.
F.3. Significant Industrial User Information. Provide the name and address of each SIU discharging to the treatment works. Submit additional pages
as necessary.
Name: Hanesbrands,Inc.
Mailing Address: 645 West Pine Street
Mount Airy,NC 27030
F.4. Industrial Processes. Describe all the industrial processes that affect or contribute to the SIU's discharge.
Sock Manufacturing
F.5. Principal Product(s)and Raw Material(s). Describe all of the principal processes and raw materials that affect or contribute to the SIU's
discharge.
Principal product(s): Socks
Raw material(s): Yarn,Bleach,Dye
F.6. Flow Rate.
a. Process wastewater flow rate. Indicate the average daily volume of process wastewater discharge into the collection system in gallons per
day(gpd)and whether the discharge is continuous or intermittent.
74,267 gpd (X continuous or intermittent)
b. Non-process wastewater flow rate. Indicate the average daily volume of non-process wastewater flow discharged into the collection system
in gallons per day(gpd)and whether the discharge is continuous or intermittent.
gpd ( continuous or intermittent)
F.7. Pretreatment Standards. Indicate whether the SIU is subject to the following:
a. Local limits ® Yes 0 No
b. Categorical pretreatment standards 0 Yes 0 No
If subject to categorical pretreatment standards,which category and subcategory?
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 18 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
Mount Airy WWTP, NC0021121 Renewal Yadkin Pee-Dee
F.8. Problems at the Treatment Works Attributed to Waste Discharge by the SIU. Has the SIU caused or contributed to any problems(e.g.,
upsets,interference)at the treatment works in the past three years?
Yes ® No If yes,describe each episode.
RCRA HAZARDOUS WASTE RECEIVED BY TRUCK, RAIL, OR DEDICATED PIPELINE:
F.9. RCRA Waste. Does the treatment works receive or has it in the past three years received RCRA hazardous waste by truck,rail or dedicated pipe?
❑ Yes ® No(go to F.12)
F.10. Waste transport. Method by which RCRA waste is received(check all that apply):
❑ Truck ❑ Rail ❑ Dedicated Pipe
F.11. Waste Description. Give EPA hazardous waste number and amount(volume or mass,specify units).
EPA Hazardous Waste Number Amount Units
CERCLA(SUPERFUND)WASTEWATER, RCRA REMEDIATION/CORRECTIVE ACTION
WASTEWATER, AND OTHER REMEDIAL ACTIVITY WASTEWATER:
F.12. Remediation Waste. Does the treatment works currently(or has it been notified that it will)receive waste from remedial activities?
❑ Yes(complete F.13 through F.15.) ® No
F.13. Waste Origin. Describe the site and type of facility at which the CERCLA/RCRA/or other remedial waste originates(or is excepted to origniate in
the next five years).
F.14. Pollutants. List the hazardous constituents that are received(or are expected to be received). Include data on volume and concentration,if
known. (Attach additional sheets if necessary.)
F.15. Waste Treatment.
a. Is this waste treated(or will be treated)prior to entering the treatment works?
❑ Yes ❑ No
If yes,describe the treatment(provide information about the removal efficiency):
b. Is the discharge(or will the discharge be)continuous or intermittent?
❑ Continuous ❑ Intermittent If intermittent,describe discharge schedule.
END OF PART F.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 19 of 22

FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
SUPPLEMENTAL APPLICATION INFORMATION
PART G. COMBINED SEWER SYSTEMS
If the treatment works has a combined sewer system,complete Part G.
G.1. System Map. Provide a map indicatingthe following: (may be included with Basic Application Information)
Y P
a. All CSO discharge points.
b. Sensitive use areas potentially affected by CSOs(e.g.,beaches,drinking water supplies,shellfish beds,sensitive aquatic ecosystems,and
outstanding natural resource waters).
c. Waters that support threatened and endangered species potentially affected by CSOs.
G.2. System Diagram. Provide a diagram,either in the map provided in G.1 or on a separate drawing,of the combined sewer collection system that
includes the following information.
a. Location of major sewer trunk lines,both combined and separate sanitary.
b. Locations of points where separate sanitary sewers feed into the combined sewer system.
c. Locations of in-line and off-line storage structures.
d. Locations of flow-regulating devices.
e. Locations of pump stations.
CSO OUTFALLS:
Complete questions G.3 through G.6 once for each CSO discharge point.
G.3. Description of Outfall.
a. Outfall number
b. Location
(City or town,if applicable) (Zip Code)
(County) (State)
(Latitude) (Longitude)
c. Distance from shore(if applicable) ft.
d. Depth below surface(if applicable) ft.
e. Which of the following were monitored during the last year for this CSO?
D Rainfall ❑ CSO pollutant concentrations ❑ CSO frequency
❑ CSO flow volume ❑ Receiving water quality
f. How many storm events were monitored during the last year'?
G.4. CSO Events.
a. Give the number of CSO events in the last year.
events (0 actual or 0 approx.)
b. Give the average duration per CSO event.
hours (0 actual or❑approx.)
EPA Form 3510-2A(Rev. 1-99). Replaces EPA forms 7550-6&7550-22. Page 20 of 22

r
FACILITY NAME AND PERMIT NUMBER: PERMIT ACTION REQUESTED: RIVER BASIN:
c. Give the per average volume CSO event.
million gallons(❑actual or❑approx.)
d. Give the minimum rainfall that caused a CSO event in the last year
Inches of rainfall
G.5. Description of Receiving Waters.
a. Name of receiving water:
b. Name of watershed/river/stream system:
United State Soil Conservation Service 14-digit watershed code(if known):
c. Name of State Management/River Basin:
United States Geological Survey 8-digit hydrologic cataloging unit code(if known):
G.6. CSO Operations.
Describe any known water quality impacts on the receiving water caused by this CSO(e.g.,permanent or intermittent beach closings,permanent or
intermittent shell fish bed closings,fish kills,fish advisories,other recreational loss,or violation of any applicable State water quality standard).
END OF PART G.
REFER TO THE APPLICATION OVERVIEW (PAGE 1) TO DETERMINE WHICH OTHER PARTS
OF FORM 2A YOU MUST COMPLETE.
EPA Form 3510-2A(Rev.1-99). Replaces EPA forms 7550-6&7550-22. Page 21 of 22