NC0021121_Renewal (Application)_20240923

ROY COOPER
Governor
ELIZABETH S. BISER
Secretory
RICHARD E. ROGERS, JR.
Director
Ricky Dean
City of Mount Airy
440 E Pine St
Mount Airy, NC 27030
Subject: Permit Renewal
Application No. NCO021121
Mount Airy WWTP
Surry County
Dear Applicant:
NORTH CAROLINA
Environmental Quality
September 23, 2024
The Water Quality Permitting Section acknowledges the September 23, 2024 receipt of your permit renewal application
and supporting documentation. Your application will be assigned to a permit writer within the Section's NPDES WW
permitting branch. Per G.S. 150E-3 your current permit does not expire until permit decision on the application is made.
Continuation of the current permit is contingent on timely and sufficient application for renewal of the current permit. The
permit writer will contact you if additional information is required to complete your permit renewal. Please respond in a
timely manner to requests for additional information necessary to allow a complete review of the application and renewal
of the permit.
Information regarding the status of your renewal application can be found online using the Department of Environmental
Quality's Environmental Application Tracker at:
https://www.deg.nc.gov/permits-rules/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.
ec: WQPS Laserfiche File w/application
'T,
Sincerely,
//
6�Y�
Cynthia Demery
Administrative Assistant
Water Quality Permitting Section
N Ca Department a Emyvmemal Qualky I D wof Water Nero s
Vyauein-S Regl Office I I50 VRrt sAalpnad.5ph300 I W -S
3 T76%00

City of Mt Airy WWTP
September 19, 2024
Mr. Gary Perlmutter
NC DEQ/DWR
Water Quality Permitting Section - NPDES
1617 Mail Service Center
Raleigh, N.C. 27699-1617
Subject: NPDES Permit NC 0021121 Renewal
Dear Mr. Perlmutter,
P.O. Box 70
Mount Airy, N.C. 27030
Phone: 336-7W3597
Fax: [phone]
;?Ev t�D
SEP 2 3 2024
NCDEQ/0VVR1NP
DES
The City of Mount Airy is requesting renewal of NPDES Permit NC 0021121 that
expires February 28, 2025. Enclosed please find the original renewal packet along
with two copies. The packet includes the application, sludge management plan,
MMP summary, supplemental application information for parts C, E, & F. If you
have any questions or require further information, please contact me at 336-786-
3597.
Sincerely,
lllamb )
Chris Marion
WWTP ORC
............................

EPA Identification Number
NPDES Permit Number
- Facility Name
Form Approved 03105119
110040038143
NCO021121
Mount AiryWWTP
OMB No. 2040-0004
Form
U.S. Environmental Protection Agency
2A
:.EPA
Application for NPDES Permit to Discharge Wastewater
NPDES
NEW AND EXISTING PUBLICLY OWNED TREATMENT WORKS
SECTION•N
INFORMATION FORr
Facility name
1.1
Mount Airy W WTP
Mailing address (street or P.O. box)
P.O Box 70
City or town
State
ZIP code
Mount Airy
NC
27030
Contact name (first and last)
Title
Phone number
Email address
c
Chris Marion
WWTP Supervisor- ORC
[phone]
[e-mail]
Location address (street, route number, or other specific identifier) ❑ Same as mailing address
1750 Andy Griffith Parkway South
City or town
State
ZIP code
Mount Airy
NC
27030
1.2
Is this application for a facility that has yet to commence discharge?
❑ Yes 4 See instructions on data submission 0 No
requirements for new dischargers.
1.3
Is applicant different from entity listed under Item 1.1 above?
❑ Yes No 4 SKIP to Item 1.4.
Applicant name
Applicant address (street or P.O. box)
0
€
City or town
State
ZIP code
Contact name (first and last)
Title
Phone number
Email address
6
6
a
1.4
Is the applicant the facility's owner, operator, or both? (Check only one response.)
❑� Owner ❑ Operator ❑ Both
1.5
To which entity should the NPDES permitting authority send correspondence? (Check only one response.)
❑� Facility El Applicant ❑ Facility and applicant
(they are one and the same)
1.6
Indicate below any existing environmental permits. (Check all that apply and print or type the corresponding permit
numberforeach.
€
Existing Environmental Permits
a
❑� NPDES (discharges to surface
❑ RCRA (hazardous waste)
❑ UIC (underground injection
c
water)
control)
d
E
NC0021121
❑ PSD (air emissions)
❑ Nonattainment program (CAA)
❑ NESHAPs (CAA)
w
rn
H
❑ Ocean dumping (MPRSA)
❑ Dredge or fill (CWA Section
❑ Other (specify)
404)
EPA Fame 3510-2A (Revised 3-19) Page 1

EPA Identification Number
NPDES Permit Number
Facility Name
Farm Approved 03105119
OMB No. 2040-0004
110040038143
NC0021121
Mount Airy WWTP
1.7
Provide the collections stem information
requested below for the treatment works.
Municipality
Population
Collection System Type
Ownership Status
Served
Served
indicate ercenta e
100 % separate sanitary sewer
0 Own ❑ Maintain
w
City of Mount
10,617
%combined storm and sanitary sewer
❑ Own ❑ Maintain
d
Airy
❑ Unknown
❑Own ❑ Maintain
% separate sanitary sewer
❑ Own ❑ Maintain
_ % combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
0
% separate sanitary sewer
❑ Own ❑ Maintain
v
% combined storm and sanitary sewer
❑ Own ❑ Maintain
❑ Unknown
❑ Own ❑ Maintain
a%
separate sanitary sewer ❑ Own ❑ Maintain
%combined storm and sanitary sewer El Own ❑ Maintain
rn
c
❑ Unknown ❑ Own ❑ Maintain
Total
Population 10,617
C-)
Served
Combined Storm andSanitary
Separate Sanitary Sewer System
Sewer
Total percentage of each type of
% %
sewer line in miles
M1�PS 100
Z
1.8
Is the treatment works located in Indian Country?
c
0
❑ Yes ✓❑ No
A1.9
Does the facility discharge to a receiving water that flows through Indian Country?
❑ Yes 0 No
1.10
Provide design and actual flow rates in the designated spaces.
Design Flow Rate
7.0 mgd
Annual Average Flow Rates Actual
vTwo
Years Ago
Last Year
This Year
0
1.499 mgd
1.648 mgd
1.8io mgd
dLL
Maximum Daily Flow Rates Actual
Two Years Ago
Last Year
This Year
ii.o9 mgd
s.19 mgd
7.79 mgd
1.11
Provide the total number of effluent discharge points to waters of the United States by type.
Total Number of Effluent Dischar a Points by Type
a a
Combined SewerOverflows
Constructed
rn F
Treated Effluent
Untreated Effluent
Bypasses
Emergency
a
.c .0
Overflows
N
O
1
EPA Form 3510-2A (Revised 3-19) Page 2

EPA Identification Number
NPDES Permit Number
FadBty Name
Form Approved 03N51t9
110040038143
NCO021121
Mount Airy WWTP
OMB No. 2040-0004
Outfalls-0therThan to Waters of the United States
1.12
Does the POTW discharge wastewater to basins, ponds, or other surface impoundments that do not have outlets for
discharge to waters of the United States?
❑ Yes 2 No + SKIP to Item 1.14.
1.13
Provide the location of each surface impoundment and associated discharge information in the table below.
Surface Im
oundment Location and Dischar
a Data
Average Daily Volume
Continuous or Intermittent
Location
Discharged to Surface
(check one)
Impoundment
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
❑ Intermittent
❑ Continuous
gpd
v
❑ Intermittent
ram'.
1.14
Is wastewater applied to land?
❑ Yes ❑� No 4 SKIP to Item 1.16.
c
1.15
Provide the land application site and discharge data requested
below.
H
Land Application Site
and Discharge Data
o
Average Daily Volume
Continuous or
Location
Size
Applied
Intermittent
rn
check one
acres
gpd
❑ Continuous
y
c
❑ Intermittent
t
acres
gpd
❑ Continuous
❑ Intermittent
v
acres
gpd
❑ Continuous
❑ Intermittent
A
1.16
Is effluent transported to another facility for treatment prior to discharge?
0
El Yes m No 4 SKIP to Item 1.21.
1.17
Describe the means by which the effluent is transported (e.g., tank truck, pipe).
1.18
Is the effluent transported by a party other than the applicant?
❑ Yes Z No 4 SKIP to Item 1.20.
1.19
Provide information on the transporter below.
Trans orter Data
Entity name
Mailing address (street or P.O. box)
City or town
State
ZIP code
Contact name (first and last)
Title
Phone number
Email address
EPA Form 3570-2A (Revised 3-19) Page 3

EPA Identification Number NPDES Pent Number Facility Name Form Approved 03105/19
110040038143 NCO021121 Mount AiryWWTP OMB No. 2040-0004
SECTION•• • INFORMATION
o Ouffalls to Waters of the United States
2.1
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
rn
a
Q Yes ❑ No 4 SKIP to Section 3.
c
2.2
Provide the treatment works' current average daily volume of inflow
Average Daily Volume of Inflow and Infiltration
and infiltration.
25,000 gpd
c
Indicate the steps the facility is taking to minimize inflow and infiltration.
v
m
City is currently working with Hazen & Sawyer to complete a Sewer System Asset Inventory and Assessment. Also
u
preparing a Primary Engineering Report for WWTP.
c
c
"_—
2.3
Have you attached a topographic map to this application that contains all the required information? (See instructions for
specific requirements.)
o
Yes ❑ No
ro
E
2.4
Have you attached a process flow diagram or schematic to this application that contains all the required information?
3
o `2
(See instructions for specific requirements.)
Yes ❑ No
2.5
Are improvements to the facility scheduled?
❑ Yes No 4 SKIP to Section 3.
Briefly list and describe the scheduled improvements.
0
A
1.
c
E
E
c
E
2.
0
d
3.
a
d
t
4.
9
A
2.6
Provide scheduled or actual dates of completion for improvements.
Scheduled
or Actual Dates of Completion for improvements
E
E
Scheduled
Affected
Ouffalls
Begin
End
Begin
Aftainment of
Operational
Improvement
(list
Construction
Construction
Discharge
el
LevYYYj
(from above)
numbeall
(MMlDD1YYYY)
(MMIDDNYYY)
(MMIDDff"
MMIDD
v
zs
1.
�u
i
2.
3.
4.
2.7
Have appropriate permits/clearances concerning other federallstate requirements been obtained? Briefly explain your
response.
❑ Yes ❑ No ❑ None required or applicable
Explanation:
EPA Form 3510-2A (Revised 3-19) Page 5

EPA Idenfificetion Number
NPOES Permit Number
Facility Name
Farm Approved 03N5/19
110040038143
NCO021121
Mount Airy WWTP
WE No. 2040-0004
3.7
Provide the receivinq water and related information if known
for each outfall.
Outfall Number 001
Outfall Number_
Outfall Number_
Receiving water name
Ararat River
Name of watershed, river,
Yadkin Pee Dee
a
or stream system
a
U.S. Soil Conservation
N
Service 14-digit watershed
o
code
Name of state
3
management/riverbasin
rn
U.S. Geological Survey
8-digit hydrologic
cataloging unit code
Critical low flow (acute)
cfs
cis
cis
Critical low flow (chronic)
cfs
cfs
cfs
Total hardness at critical
mg/L of
mglL of
mg/L of
low flow
CaCO3
CaCO3
CaCO3
3.8
Provide the following information
describinq the treatment provided for dischar es from each outfall.
Outfall Number 00I
Outfall Number_
Outfall Number_
Highest Level of
❑ Primary
❑ Primary
❑ Primary
Treatment (check all that
❑ Equivalent to
❑ Equivalent to
❑ Equivalent to
apply per outfall)
secondary
secondary
secondary
❑ Secondary
❑ Secondary
❑ Secondary
0 Advanced
❑ Advanced
❑ Advanced
❑ Other (specify)
❑ Other (specify)
❑ Other (specify)
0
.6
Design Removal Rates by
Outfall
a
BODs or CBOD5
85 %
%
%
c
a
a
TSS
85 %
%
%
r=
0 Not applicable
❑ Not applicable
❑ Not applicable
Phosphorus
%
%
%
m Not applicable
❑ Not applicable
❑ Not applicable
Nitrogen
%
%
° /o
Other (specify)
❑ Not applicable
❑ Not applicable
❑ Not applicable
%
%
%
EPA Form 3510-2A (Revised 3-19) Page 7

EPA ldentificafion Number
NPDES Permit Number
Facility Name
Form Approved03N5/19
110040038143
NCO021121
Mount Airy WWTP
OMB No. 2040-0004
3.9
Describe the type of disinfection used for the effluent from each outtall in the table below. If disinfection varies by
season, describe below.
v
v
c
C
O
Outfall Number 001
Outfall Number_
Outfall Number_
0
a
Disinfection type
Sodium Hypochlorite
H
GI
Seasons used
4
d
d
Dechlorination used?
❑ Not applicable
❑ Not applicable
❑ Not applicable
r=
0 Yes
❑ Yes
❑ Yes
❑ No
❑ No
❑ No
3.10
Have you completed monitoring for all Table A parameters and attached the results to the application package?
0 Yes ❑ No
3,11
Have you conducted any WET tests during the 4.5 years prior to the date of the application on any of the facility's
discharges or on any receiving water near the discharge points?
0 Yes ❑ No 4 SKIP to Item 3.13.
3.12
Indicate the number of acute and chronic WET tests conducted since the last permit reissuance of the facility's
discharges by outfall number or of the receiving water near the dischar a oints.
Outfall Number 001
Outfall Number_
Outfall Number_
Acute
Chronic
Acute
Chronic
Acute
Chronic
Number of tests of discharge
0
is
water
Number of tests of receiving
water
3.13
Does the treatment works have a design flow greater than or equal to 0.1 mgd?
0 Yes ❑ No 4 SKIP to Item 3.16.
c
3.14
Does the POTW use chlorine for disinfection, use chlorine elsewhere in the treatment process, or otherwise have
reasonable potential to discharge chlorine in its effluent?
v
0 Yes 4 Complete Table B, including chlorine. ❑ No 4 Complete Table B, omitting chlorine.
~
c
3.15
Have you completed monitoring for all applicable Table B pollutants and attached the results to this application
Y P 9 PP� P PP�
package?
w
0 Yes ❑ No
3.16
Does one or more of the following conditions apply?
• The facility has a design flow greater than or equal to 1 mgd.
• The POTW has an approved pretreatment program or is required to develop such a program.
• The NPDES permitting authority has informed the POTW that it must sample for the parameters in Table C, must
sample other additional parameters (Table D), or submit the results of WET tests for acute or chronic toxicity for
each of its discharge outfalls (Table E).
0 Yes 4 Complete Tables C, D, and E as ❑ No 4 SKIP to Section 4.
applicable.
3.17
Have you completed monitoring for all applicable Table C pollutants and attached the results to this application
package?
0 Yes ❑ No
3.18
Have you completed monitoring for all applicable Table D pollutants required by your NPDES permitting authority and
attached the results to this application package?
Yes ❑ No additional sampling required by NPDES
permitting authority.
EPA Form 3510-2A (Revised 3-19) Page 8

EPA ldentificabon Number
NPDES Permit Number
Fadlily Name
Form Approved03A5/19
110040038143
NCO021121
Mount Airy WWTP
OMB No. 2040-0004
3.19
Has the POTW conducted either (1) minimum of four quarterly WET tests for one year preceding this permit application
or (2) at least four annual WET tests in the past 4.5 years?
A Complete tests and Table E and SKIP to
❑� Yes El
Item 3.26.
Item
3.20
Have you previously submitted the results of the above tests to your NPDES permitting authority?
No + Provide results in Table E and SKIP to
❑+ Yes ❑
Item 3.26.
3.21
Indicate the dates the data were submitted to our NPDES permitting authority and provide a summary of the results.
Date(s) Submitted
Summary of Results
MMIDDNYYY
,:7/2-6 17-aZ3
Overall Result - ChV >100
�Q /IL/Zoz3
a
/ZOzy
0
�
3.22
Regardless of how you provided our WET testing data to the NPDES permitting authority, did an of the tests result in
9 Y P Y 9 P 9 tY� Y
o
toxicity?
❑ Yes ❑ No 4 SKIP to Item 3.26.
F3.23
Describe the cause(s) of the toxicity:
0
0
Lu
w
3.24
Has the treatment works conducted a toxicity reduction evaluation?
❑ Yes ❑ No 4 SKIP to Item 3.26.
3.25
Provide details of any toxicity reduction evaluations conducted.
3.26
Have you completed Table E for all applicable ouHalls and attached the results to the application package?
0 Yes ❑ Not applicable because previously submitted
Information to the NPDES ermittin authori.
SECTIONr
DISCHARGES AND HAZARDOUS WASTES (40
Does the POTW receive discharges from SIUs or NSCIUs?
4.1
❑� Yes ❑ No 4 SKIP to Item 4.7.
w
4.2
Indicate the number of SIUs and NSCIUs that discharge to the POTW.
m
Number of SIUs
Number of NSCIUs
3
0
2
0
4.3
Does the POTW have an approved pretreatment program?
x
❑� Yes ❑ No
9
4.4
Have you submitted either of the following to the NPDES permitting authority that contains information substantially
identical to that required in Table F: (1) a pretreatment program annual report submitted within one year of the
application or (2) a pretreatment program?
t
0 Yes ❑ No 4 SKIP to Item 4.6.
0
4.5
Identify the title and date of the annual report or pretreatment program referenced in Item 4.4. SKIP to Item 4.7.
5
City of Mount Airy Pretreatment Annual Report - February 26, 2024
a
c
4.6
Have you completed and attached Table F to this application package?
❑� Yes ❑ No
EPA Form 3510-2A (Revised 3-19) Page 9

EPA ldenfification Number
NPDES Permit Number
Facility Name
Form Appmved 030119
110040039143
NC0011121
Mount AiryWWTP
OMB No. 2040-0004
4.7
Does the POTW receive, or has it been notified that it will receive, by truck, rail, or dedicated pipe, any wastes that are
regulated as RCRA hazardous wastes pursuant to 40 CFR 261?
❑ Yes ❑✓ No 4 SKIP to Item 4.9.
4.8
If ves, Provide the foliowin information:
Annual
Hazardous Waste
Waste Transport Method
Amount of
Units
Number
(check all that apply)
Waste
Received
❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other (specify)
c
a
c
0
U
d
❑ Truck ❑ Rail
❑ Dedicated pipe ❑ Other (specify)
m
0
0
v
❑ Truck ❑ Rail
_
❑ Dedicated pipe ❑ Other (specify)
v
c
n
N
d
A
4.9
Does the POTW receive, or has it been notified that it will receive, wastewaters that originate from remedial activities,
y
including those undertaken pursuant to CERCLA and Sections 3004(7) or 3008(h) of RCRA?
❑ Yes ❑� No 4 SKIP to Section 5.
2
4.10
Does the POTW receive (or expect to receive) less than 15 kilograms per month of non -acute hazardous wastes as
specified in 40 CFR 261.30(d) and 261.33(e)?
❑ Yes 4 SKIP to Section 5. ❑ No
4.11
Have you reported the following information in an attachment to this application: identification and description of the
site(s) or facility(ies) at which the wastewater originates; the identities of the wastewater's hazardous constituents; and
the extent of treatment, if any, the wastewater receives or will receive before entering the POTW?
❑ Yes ❑ No
SECTIONr
r SEWER OVERFLOWS (40
Does the treatment works have a combined sewer system?
e
5.1
❑ Yes ❑✓ No 4SKIP to Section 6.
a
5.2
Have you attached a CSO system map to this application? (See instructions for map requirements.)
c
6
N
❑ Yes ❑ No
5.3
Have you attached a CSO system diagram to this application? (See instructions for diagram requirements.)
0
U
❑ Yes ❑ No
EPA Form 3510-2A (Revised 3-19) Page 10

EPA Identification Number
NPOES Perk Number
Facility Name
Form Approved 03105/19
110040038143
NCO021121
Mount Airy WWTP
OMB No. 2040-0004
5.4
For each CSO outfall, Droviiida the folloWnq information. Attach
additional sheets as necessary.)
CSO Outfall Number_
CSO Outfall Number_
CSO Outfall Number_
City or fawn
0
u
State and ZIP code
N
o
County
o
Latitude
c)
Longitude
Distance from shore
Depth below surface
5.5
Did the POTW monitor any of the following items in the past year for its CSO outfalls7
CSO Outfall Number_
CSO Outfall Number_
CSO Outfall Number_
Rainfall
❑ Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No
rn
c
o
CSO flow volume
❑ Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No
CSO pollutant
❑ Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No
o
concentrations
to
Receiving water quality
❑ Yes ❑ No
Yes ❑ No
❑Yes ❑ No
CSO frequency
❑ Yes ❑ No
❑ Yes ❑ No
❑ Yes ❑ No
Number of storm events
❑ Yes ❑ No
❑ Yes ❑ No
[]Yes El No
5.6
Provide the following information for each of your CSO outfalls.
CSO Outfall Number _
CSO Outfall Number_
CSO Outfall Number
d
r
Number of CSO events in
events
events
events
N
the past year
A
Average duration per
hours
hours
hours
event
❑ Actual or ❑ Estimated
❑ Actual or ❑ Estimated
❑ Actual or ❑ Estimated
a
o
Average volume per event
million gallons
million gallons
million gallons
cU)i
❑ Actual or ❑ Estimated
❑ Actual or ❑ Estimated
❑ Actual or ❑ Estimated
Minimum rainfall causing
inches of rainfall
inches of rainfall
inches of rainfall
a CSO event in last year
❑ Actual or ❑ Estimated
1 ❑ Actual or ❑ Estimated
❑ Actual or ❑ Estimated
EPA For 3510-2A (Revised 3-19) Page 11

EPA Idenfifiration Number
NPDES Permit Number
Facility Name
Form Approved 03,05/19
110040038143
NCO021121
Mount Airy WWTP
OMB No. 2040-0004
5.7
Provide the information in the table below for each of your CSO outfalls.
CSO Outfall Number—
CSO Outfall Number—
CSO Oulhll Number _
Receiving water name
Name of watershed/
streams stem
�q
U.S. Soil Conservation
❑ Unknown
❑ Unknown
❑ Unknown
3
Service 14-digit
watershed code
if known
Name of state
cc
mana ementinverbasin
U.S. Geological Survey
❑ Unknown
❑ Unknown
Maw 1.
8-Digit Hydrologic Unit
Code if known
Description of known
5 t N l 3 Z024
water quality impacts on
receiving stream by CSO
(see instructions for
exam les
SECTION
r
In Column 1 below, mark the sections of Form 2A that you have completed and are submitting with your application. For
6.1
each section, specify in Column 2 any attachments that you are enclosing to alert the permitting authority. Note that not
all applicants are required to provide attachments.
Column t
Column 2
❑ Section 1: Basic Application
❑ w/ variance request(s) 0 w/ additional attachments
Information for All Applicants
© Section 2: Additional❑
w/ topographic map © wl process flow diagram
Information
❑ wl additional attachments
0 w/ Table A © w/ Table D
© Section 3: Information on
© w/ Table B wl Table E
Effluent Discharges
E
0 w/ Table C 0 wl additional attachments
Section 4: Industrial
0 w/ SIU and NSCIU attachments 0 w/ Table F
rr'
`o
0 Discharges and Hazardous
❑
Wastes
w/ additional attachments
❑ Section 5: Combined Sewer
❑ w/ CSO map ❑ wl additional attachments
d
Overflows
❑ wl CSO system diagram
A
0 Section 6: Checklist and
❑ w/ attachments
Certification Statement
s
6.2
Certification Statement
1 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 property gather and evaluate the information
submitted. Based on my inquiry of the person or persons who manage the system, or those persons directly responsible
for gathering the information, the information submitted is, to the best of my knowledge and belief, true, accurate, and
complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine
and imprisonment for knowing violations.
Name (print or type first and last name)
Official title
Christopher S. Marion
W WTP Supervisor/ORC
Signature
Date signed
B-/-Zozy
EPA Form 3510-2A (Revised 3-19) Page 12
ES

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( !lyAl�,' /L� z _�•�/i \°li(1• { 3
.
NCO021121 - Mount Airy VMTP Facility
Latitude: 36°28'10" Sub -Basin: 03-07-03 Location
Longitude: 80036'00" County: 5urry (not t0 scale)
Quad p: B16NE/Mt Airy South
AAW
Stream Class: C
Receiving Stream: Ararat River
Page 9 of 9

'GRIT PRIMARY CLARIFIER NO. I TRIC(UNG FILTER NO. i
CLASSIFIERS
SCREENING
FACILITYFACILITYPUMPING PING STATION
= PRETREATMENT WET BUILDING PRIMARY CLARIFIER N0.�2I
' I 1II �TTRICKLJ
f
� GRIL PUMPS PARSNALL '
yIET FLUME PRIMARY CLARIN0. 3 TRICKUI
MECH. I Cill,
j j BYPASS ;
FER
BM INFLUENT �'°A — SUOE GATE
SCREEN-� MANUAL BAR PUMPS — i
SCREEN COLLECTORS I 12'g _
acROUArm
DIGESTER BUILDING YMT SLED SLUDGE
PAI•�
DIGESTER NO. I HEAT I PUMPING
EXCHANGER. .I STATION
PANMT SLUDGE
j REp F MP "ON — AND .aN
PUMP 'XAS AWLE '
f SLUDGE
f— DEWATERING
BUILDING WAS WAM
�Vp 51q I mo. WAS RAS/WAS PUMPING
wnNG pUug ^I pU� J; i 1 STATION i
DIG
ESTERR SLUDGE I HaENEiT WAS PUMPS_PARSNALL
®1 THIC.'cENED �' —FUME
SLUDGE PUMPq_ttwR RAS PUMPS
5D—
RC DCN TRU D ATEREDPUMP —�' —
i BELT FILTER SLUDGE TO RAs MAW 9.Um
PRESS DISPOSAL
TO SLUDGE
DRYING BEDS
LEGEND
PLANT FLOW
------------ BYPASS FLOW
SLUDGE AND SCUM
L Il L !S !1 AE IATICN I AE1iAnON
? INTERMEDIATE BASIN N0. II BASIN N0. 2
FILTER NO. 3 PUMPING STATION! AERAigt AaUCR ,
i
B1PASa
' R_aAaRAnar�
anA_ss__ �
i
SaIN
® ® A
RECRCILATION
FINAL CLARIFIER PUMPING STATION
j NO.
I
AL UWaR
idAl aAan[t EFI.UFNT
LIQTM
d RIVER
MOUNT AIRY
WASTEWATER TREATMENT -PLO
PROCESS FLOW
SCHEMAX

NPDES Permit Renewal NCO021121
The Mount Airy Wastewater Treatment Facility has a capacity of 7.0
MGD that includes the following components:
• Mechanical bas screening
• Grit chamber
• Primary clarifiers
• Trickling filters
• Activated sludge tank
• Belt press
• Sludge thickener
• Chlorine contact tank
• Dechlorination
• Sludge holding tanks
• Continuous recording flow meter
The facility is located at 1750 Andy Griffith Parkway South, Mount
Airy in Surry County.

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.

\IderiEgcaSon NuW NPOFSPemdtNuber Fasuty Name Ouaall Number FormAMMM030919
11OD40038143 I NCO021121 I Mount Alry W WFP I
IOOS OMB No. 2040-M
TABLE A. EFFLUENT PARAMETERS
FOR ALL POTWS
Maximum Dally Discharge
Average Dally Discharge
Analytical MLor MOL
Value
Units
Value
Units
Number of
Pollutant
Method" (include units)
Sam les
Biochemical oxygen demand
m BODs or ❑ CBODs
16A
mgA
2.32
mg/I
204
5M521011 2.0mg/I m MOL
e otone
Fecal WG(Oml
260
CFU/300 m1
5.90
CFU/300 m1
104
SM9222D ICFU/1 �ML
m MOL
Design fiov rate
7.79
MGD
1.810
MGD
365
pH (minimum)
6.7
s.0
PV(meximum)
7.7
z.0
Temperature (Winter)
18
Celsius
12.56
Celsius
101
Temperature (summer)
25
Celsius
20.25
Celsius
148
Total suspended solids(TSS)
11
mg/I
2.57
mg/I
104
SM2540D 2.5mg/I mMDL
I Sampling shall be conducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 forme analysis of pollutants or pollutant parameters of
required under 40 CFR chapter I, subchapter N a 0. See instructions and 40 CFR 122.21(e)(3).
EPA Form 35W2A (Revised 3.19) Page 13

This page intentionally left blank.

EPA IEemrxation Nlmbtf NPOESPamdNWTW FmIrty Name Ouldl Number Farm Appmvetl0305119
310040038143 NCO021221 Maunt Alry W WTP 001 OMB No. 2n10-0904
Maximum Daly Discharge
Average Dally Discharge
Analytical
ML or MDL
Value
Units
Number of
Pollutant
Value Units
Method'
include units)
Samples
Ammonia (as M
2.1
mgA
0.044
mg/I
249
EPA350.1
0.1mgA 0MDL
Chlorine
26
ug/I
6.76
ug/I
249
SM4500CIG-2011
CIA
O MOL
total residual TRC 2
DlsscIved Oxygen
14.2
mgA
8.72
mg/I
249
5M45D000-2016
13Mol
Nitral2/nitrile
12.8
M9A
8.28
mg/I
14
EPA353.2
O.lmg/I13MLL
Keldahl nitrogen
1.17
mgA
0.465
mg/I
14
EPA351.1
0.2mg/I 0Mot
Oil and grease
<5.0
mgA
<5.0
mg/I
6
EPA1164B
S.Omg/I 0 M�
Pbosphoms
2.13
mg/I
1.73
mg/I
14
EPA200.7
0.02mg/113Ma
Total dissolved golds
266
mgA
250.2S
mgA
3
SM2540C
10mg/I Olk
I Sampling shag be conducted according to sufficiently sensitive test procedures (.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters a
required under 40 CFR chapter I, subchapter N or 0. See instructions end 40 CFR 122.21(e)(3).
2 Facilities that do not use chlorine fa disinfection, do not use chlorine elsewhere in the treatment process, and have no reasonable potential to discharge chlorine in their effluent are not
required to report data for chlorine.
EPA Form 35102A (Remal 119) Page 15

This page intentionally left blank.

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IIEPAldwtfw6on Number NPDESPemld Nurder Fa6�ly Name Oudall Number Form Appr 60305n9
110040038143 NC0023121 Mount AlryWWIP 001 Dh1a Na 2000-0006
�• a •r
Maximum Daily Discharge
Value Units
Average Daily Discharge
Analytical
Method'
MLor MDL
(mclude units)
Pollutant
Value
Units
Numberol
samples
Ben2o(ghgperylene
Ben2o(k)tluoranthene
Bis(2•chloroethoxy) methane
<30
<10
<10
ug/I
ug/I
ug/I
<10
<10
<10
ug/I
ug/I
ug/I
3
3
3
EPA625.1
EPA625.1
EPAG25.1
20.0 OMLL
LIL
10.00MDL
10.0 MQL
Bis (2-0hlor0athyg ether
<10
ug/I
<10
ug/I
3
EPA625.1
10.0 Cl I; m
Bis (2-chlomisopropyg ether
<10
ugA
<10
ug/I
3
EPA625.1
10.0 Ed MOL
Bis (2-ethylhexyg phthalate
<10
ugA
<10
ug/I
3
EPA625.1
10.0 OML
m MOL
4-broanDpherryl phenyl ether
<10
ug/I
<10
ug/I
3
EPA625.1
10.0 mML
MOL
Butyl benzyi phthalate
<10
ug/I
<10
ug/I
3
EPA625.1
ML
10.0 m MDL
2-chloronaphthalene
4-chlorophenyi pherryl ether
<10
<10
ug/I
ug/l
<10
<10
ug/I
ug/I
3
3
EPA625.1
EPA625.1
El UL
10.0 [a MDL
10.0 mMOL
Chrysene
<10
ugA
<10
ug/I
3
EPA625.1
10.0 EIML
di-n-butyl phthalate
<10
ugN
<10
ug/I
3
EPA625.1
10.0 CIML
Ia M0L
di-n-octyl phthalate
<10
ug/I
<10
ug/I
3
EPA625.1
20.0 O AIL
m MDL
Dibenzo(a,h)anthracene
<10
ug/I
<10
ug/I
3
EPA625.1
10.0 13MLL
1,2-dichiorobenzene
<10
ug/I
<10
ug/I
3
EPA625.1
10.0 13x1L
m MDL
1,3-dichlombenzene
<10
ug/I
<30
ug/I
3
EPA625.1
UL
10.0 OOMDL
1,4dirhlorohenzene
<lo
ug/I
<lo
ug/I
3
EPA625.1
10.0 OMOL
3,3dichlorobenzidine
<50
ug/I
<50
ug/I
3
EPA625.1
50.0 mMLL
DIe01yl phthalate
<30
ugA
<10
ug/I
3
EPA625.1
20.0 m MDL
Dimethyl phthalate
<10
ug/l
<30
ug/I
3
EPA625.1
10.0 mMOL
2,4-dinitrotolume
<10
uv
<IO
ug/I
3
EPA625.1
ML
10.00MDL
2,6-dinihotoluene
<10
ugfl
<10
ug/I
3
EPA625.1
10.0 OML
MOL
EPA Form 3510-2A(ge4ed 319) Page20

EPAltleutifiraSon Number NPOESPemit Number FmIty Name Oufall Number Fame Appmv di)305119
110040038143 NCO021121 Mount AlryWWFP 001 OMB Na 20400904
e• r'e
Maximum Daly Discharge
Average Daily Discharge
Analytical
MLor MDL
Pollutant
Method'
(include units)
Numberof
Value Units
Value
Units
Samples
1,2-dipherry1hydrazlne
<10
ugA
<10
ug/I
3
EPA625.1
10.0 0Mi.
Fluoranthene
<10
ag/I
<10
ug/I
3
EPA625.1
10.0 m 7EDL
Fluorene
<30
ugA
<30
ug/I
3
EPA625.1
10.0 0MDL
Hexachloroberuene
<10
ugA
<10
ug/I
3
EPA625.1
10.0 mMOL
Hexachlorohutadiene
<10
ug/I
<lo
ug/I
3
EPA625.1
20.0 0MOL
Hexachlorocyclo-pentadiene
<.50
ug/I
<50
ug/I
3
EPA625.1
50.0 �ENL
Hexachloroethane
<10
ugA
<10
ug/I
3
EPA625.1
10.0 OML
Indene(1,2,3-cd)pymne
<10
ugA
<10
ug/I
3
EPA625.1
10.0 OML
mMOL
Isophorone
<10
ugA
<10
ugA
3
EPA625.1
10.0 mMp1.
Naphthalene
<10
ug/I
<10
ug/I
3
EPA625.1
10.0 Om
MOL
Nitrobenzene
<10
ugA
<10
ug/I
3
EPA625.1
10.0 OMLL
N-nitrowii-n-propylamine
<10
ugA
<10
ug/I
3
EPA625.1
10.00MDL
N-rlitrosodimethylamine
<10
ugA
<10
ug/I
3
EPA625.1
10.013 OL
N-nitrosodiphenylamine
<10
ugA
<10
ug/I
3
EPA625.1
10.0 OMOL
Phenanthrene
<10
ugA
<10
ug/I
3
EPA625.1
10.0 mMLDL
Pyrene
<10
ugA
<20
ug/I
3
EPA625.1
20.013MOL
1,2,4-tichlombenzene
<20
ugA
<10
ug/I
3
EPA625.1
10.0 Om MOL
r Sampling shall be conducted according to sufficienty sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants cr pollutant parameters or
required under40 CFR Chapter I, Subchapter N or 0. See instructions and 40 CFR 122.21(e)(3).
EPA Farm 35102A (Revised 319) Page21

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month: DECEMBER
Outfall: 001 Year: 2022
Facility Name: CITY OF MOUNT AIRY W WTP
Date of sampling: OCTOBER 4, 2022
Analytical Laboratory: MERITECH. INC.
ORC: CHRIS MARION
Phone: [phone]
Parameter
Parameter
Code
Sample Type
Analytical Method.
Quantitation
'. Level
Sample
Result
Units of..
Measurement
Ammonia (as N)
CO610
Composite
EPA 350.1
0.1
0.1
MG/L
Chlorine (total residual, TRC)
50060
Grab
SM4500 CLG-2011
15
15
UG/L
Dissolved Oxygen
00300
Grab
SM4500 OG-2016
0.05
8.02
MG/L
Nitrite plus Nitrate Total (as N)
00630
Composite
EPA 353.2
0.1
6.58
MG/L
Total Kjeldahl Nitrogen
00625
Composite
EPA 351.1
0.2
<0.2
1 MG/L
Oil and Grease
00556
Grab
EPA 1664B
5
<5.0
MG/L
Total Phosphorus
CO665
Composite
EPA 200.7
0.02
1.94
MG/L
Total Dissolved Solids
70295
Composite
SM2540C
10
250
MG/L
Hardness
00900
Composite
SM2340B
1
68
MG/L
Metals (total recoverable), cyanide and total phenols'^�- -
Antimony
01097
Composite
EPA 200.8
0.0005
0.0018
MG/Lf
Arsenic
01002
Composite
EPA 200.8
0.002
<0.002
MG/L
Beryllium
01012
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Cadmium
01027
Composite
EPA 200.8
0.00015
<0.00015
MG/L
Chromium
01034
Composite
EPA 200.8
0.002
<0.002
MG/L
Copper
01042
Composite
EPA 200.8
0.002
0.013
MG/L
Lead
01051
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Mercury (Method 1631E)
COMER
Grab
EPA 1631E
1.0
2.52
NG/L
Nickel
01067
Composite
EPA 200.8
0.0005
0.0013
MG/L
Selenium
01147
Composite
EPA 200.8
0.001
<0.001
MG/L
Silver
01077
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Thallium
01059
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Zinc
01092
Composite
EPA 200.8
0.005
0.025
MG/L
Cyanide
00720
Grab
EPA 335.4
0.005
<0.005
MG/L
Total phenolic compounds
32730
Grab
EPA 420.1
0.01
<0.010
MG/L
Volatile organic compounds _ )
Acrolein
34210
Grab
EPA 624.1
50.00
<50.0
UG/L
Acrylonitrile
34215
Grab
EPA 624.1
10.00
<10.0
UG/L
Benzene
34030
Grab
EPA 624.1
1.00
<1.00
UG/L
Bromoform
32104
Grab
EPA 624.1
1.00
<1.00
UG/L
Carbon Tetrachloride
32102
Grab
EPA 624.1
1.00
<1.00
UG/L
Chlorobenzene
34301
Grab
EPA 624.1
1.00
<1.00
UG/L
Chlorodibromomethane
34306
Grab
EPA 624.1
1.00
<1.00
UG/L
Chloroethane
85811
Grab
EPA 624.1
5.00
<5.00
UG/L
2-chloroethyl vinyl ether
34576
Grab
EPA 624.1
5.00
<5.00
UG/L
Chloroform
32106
Grab
EPA 624.1
1.00
21.9
UG/L
Dichlorobromomethane
32101
Grab
EPA 624.1
1.00
6.24
UG/L
1,1-dichloroethane
34496
Grab
EPA 624.1
1.00
<1.00
UG/L
1,2-dichloroethane
32103
Grab
EPA 624.1
1.00
<1.00
UG/L
Trans-1,2-dichloroethylene
34546
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1-dichloroethylene
34501
Grab
EPA 624.1
1.00
<1.00
UG/L
1,2-dichloropropane
34541
Grab
EPA 624.1
1.00
1 <1.00
UG/L
Form - DMR- PPA-1 Page 1

Annual Monitoring and Pollutant Scan
Permit No. NCO021121 Month: DECEMBER
Outfall: 001 Year: 2022
Parameter -
Parameter
Code -
Sample Type
Analytical Method
_
;. Quantitation
.. vel
Leasuzement
Sample
Result
•`_Units -of
Me'e- s . -
1,3-dichloropropylene
77163
Grab
EPA 624.1
1.00
<1.00
UG/L
Ethylbenzene
34371
Grab
EPA 624.1
1.00
<1.00
UG/L
Methyl Bromide
34413
Grab
EPA 624.1
5.00
<5.00
UG/L
Methyl Chloride
34418
Grab
EPA 624.1
5.00
<5.00
UG/L
Methylene Chloride
34423
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1,2,2-tetrachloroethane
81549
Grab
EPA 624.1
1.00
<1.00
UG/L
Tetrachloroethylene
34475
Grab
EPA 624.1
1.00
<1.00
UG/L
Toluene
34010
Grab
EPA 624.1
1.00
<1.00
UG/L
1, 1, 1-trichloroethane
34506
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1,2-trichloroethane
34511
Grab
EPA 624.1
1.00
<1.00
UG/L
Trichloroethylene
39180
Grab
EPA 624.1
1.00
<1.00
UG/L
Vinyl Chloride
39175
Grab
EPA 624.1
5.00
<5.00
UG/L
Acid -extractable compounds
P-chloro-m-creso
34452
Composite
EPA 625.1
10.00
<10
UG/L
2-chlorophenol
34586
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dichlorophenol
34601
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dimethylphenol
34606
Composite
EPA 625.1
10.00
<10
UG/L
4,6-dinitro-o-cresol
34657
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dinitrophenol
34616
Composite
EPA 625.1
50.00
<50
UG/L
2-nitrophenol
34591
Composite
EPA 625.1
10.00
<10
UG/L
4-nitrophenol
34646
Composite
EPA 625.1
50.00
<50
UG/L
Pentachlorophenol
39032
Composite
EPA 625.1
50.00
<50
UG/L
Phenol
34694
Composite
EPA 625.1
10.00
<10
UG/L
2,4,6-trichlorophenol
34621
Composite
EPA 625.1
10.00
<10
UG/L
Base -neutral compounds
Acenaphthene
34205
Composite
EPA 625.1
10.00
<10
UG/L
Acenaphthylene
34200
Composite
EPA 625.1
10.00
<10
UG/L
Anthracene
CO220
Composite
EPA 625.1
10.00
<10
UG/L
Benzidine
39120
Composite
EPA 625.1
50.00
<50
UG/L
Benzo(a)anthracene
34526
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(a)pyrene
34247
Composite
EPA 625.1
10.00
<10
UG/L
3,4 benzoiluoranthene
34230
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(ghi)perylene
34521
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(k)fluoranthene
34242
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroethoxy) methane
34278
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroethyl) ether
34273
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroisopropyl) ether
34283
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-ethylhexyl) phthalate
39100
Composite
EPA 625.1
10.00
<10
UG/L
4-bromophenyl phenyl ether
34636
Composite
EPA 625.1
10.00
<10
UG/L
Butyl benzyl phthalate
34292
Composite
EPA 625.1
10.00
<10
UG/L
2-chloronaphthalene
34581
Composite
EPA 625.1
10.00
<10
UG/L
4-chlorophenyl phenyl ether
34641
Composite
EPA 625.1
10.00
<10
UG/L
Chrysene
34320
Composite
EPA 625.1
10.00
<10
UG/L
Di-n-butyl phthalate
39110
Composite
EPA 625.1
10.00
<10
UG/L
Di-n-octyl phthalate
34596
Composite
EPA 625.1
10.00
<10
UG/L
Dibenzo(a,h)anthracene
34556
Composite
EPA 625.1
10.00
<10
UG/L
1,2-dichlorobenzene
34536
Composite
EPA 625.1
10.00
<10
UG/L
Form - DMR- PPA-1 Page 2

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month: DECEMBER
Outfall: 001 Year : 2022
Parameter
1,3 dichlorobenzene
Parameter
Cod
Sample Type
Analytical Method
Quantitation
10.00
Sam le
<10
Units o[
eaaurem
UG/L
34566
Composite
EPA 625.1
1,4-dichlorobenzene
34571
Composite
EPA 625.1
10.00
<10
UG/L
3,3 dichlorobenzidine
34631
Composite
EPA 625.1
50.00
<50
UG/L
Diethyl phthalate
34336
Composite
EPA 625.1
10.00
<10
UG/L
Dimethyl phthalate
34341
Composite
EPA 625.1
10.00
<10
I UG/L
2,4-dinitrotoluene
34611
Composite
EPA 625.1
10.00
<10
UG/L
2,6-dinitrotoluene
CO626
Composite
EPA 625.1
10.00
<10
UG/L
1,2-diphenylhydrazine
34346
Composite
EPA 625.1
10.00
<10
UG/L
Fluoranthene
CO376
Composite
EPA 625.1
10.00
<10
UG/L
Fluorene
34381
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorobenzene
CO700
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorobutadiene
39702
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorocyclo-pentadiene
34386
Composite
EPA 625.1
50.00
<50
UG/L
Hexachloroethane
34396
Composite
EPA 625.1
10.00
<10
UG/L
indeno(1,2,3-cd(pyrene
34403
Composite
EPA 625.1
10.00
<10
UG/L
Isophorone
34408
Composite
EPA 625.1
10.00
<10
UG/L
Naphthalene
34696
Composite
EPA 625.1
10.00
<10
UG/L
Nitrobenzene
34447
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodi-n-propylamine
34428
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodimethylamine
34438
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodiphenylamine
34433
Composite
EPA 625.1
10.00
<10
UG/L
Phenanthrene
34461
Composite
EPA 625.1
10.00
<10
UG/L
Pyrene
34469
Composite
EPA 625.1
10.00
<10
UG/L
1,2,4,-tichlorobenzene
34551
Composite
EPA 625.1
10.00
<10
UG/L
Sampling should be conducted as specified in 40 CFR Part 136.
"I certify, under penalty of law, that this document and all attachments were prepared under my direction 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 managed 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. 1 am aware that there are significant penalties for submitting false information,
including the possibility of fines and imprisonment for knowing violations."
Authorized Representative name
Signature
Date
Form - DMR- PPA-1 Page 3

Meritech, Inc.
Environmental Laboratory
iw
j Laboratory Certification No. 165
Contact: Chris Marion
Report Date:
10/24/2022
Client: City of Mount Airy WWTP
NPDES #:
NC0021121
318 Wastewater Treatment Rd
Project:
Plant Eff LTM
Mount Airy, NC 27030
Date Sample Rcvd:
10/4/2022
Meritech Work Order #
100422171 Sample: Plant Effluent Composite
10/3-4/22
Parameters
Results
Annlysis Date
Reporting Limit
Method
BOD, 5 day
4.4 mg/L
10/5/22
2.0 mg/L
SM 5210 B
Total Dissolved Solids
250 mg/L
10/10/22
10 mg/L
SM 2540C
Total Suspended Solids
<2.5 mg/L
10/5/22
2.5 mg/L
SM 2540 D
Ammonia, Nitrogen
0.1 mg/L
10/6/22
0.1 mg/L
EPA 350.1
TKN
<0.20 mg/L
10/11/22
0.20 mg/L
EPA 351.1
Nitrate/Nitrite, Nitrogen
6.58 mg/L
10/7/22
0.10 mg/L
EPA 353.2
Nitrogen, total
"
6.58 mg/L
10/11/22
0.20 mg/L
EPA 353.2
ntimony, total
0.0018 mg/L
10/7/22
0.0005 mg/L
EPA 200.8
enic, total
<0.002 mg/L
10/7/22
0.002 mg/L
EPA 200.8
�ryllium, total
<0.0005 mg/L
10/7/22
0.0005 mg/L
EPA 200.8
�dmium, total
<0.00015 mg/L
10/7/22
0.00015 mg/L
EPA 200.8
)Skromium, total
<0.002 mg/L
10/7/22
0.002 mg/L
EPA 200.8
�pper,total
0.013 mg/L
10/7/22
0.002 mg/L
EPA200.8
'bead, total
<0.0005 mg/L
10/7/22
0.0005 mg/L
EPA 200.8
TKolybdenum, total
0.015 mg/L
10/7/22
0.002 mg/L
EPA 200.8
Nj,ckel, total
0.0013 mg/L
10/7/22
0.0005 mg/L
EPA 200.8
Phosphorus, total
' `slenium, total
1.94 mg/L
10/13/22
0.020 mg/L
EPA 200.7
Sliver, total
<0.001 mg/L
10/7/22
0.001 mg/L
EPA 200.8
hallium, total
<0.0005 mg/L
10/7/22
0.0005 mg/L
EPA 200.8
�, total
<0.0005 mg/L
10/7/22
0.0005 mg/L
EPA 200.8
0.025 mg/L
10/7/22
0.005 mg/L
EPA 200.8
Hardness (titration)
68 mg/L
10/6/22
1 mg/L
SM 2340B
EPA 625.1
Attached
10/19/22
Meritech Work Order #
100422172 Sample:
Plant Effluent Grab
10/4/22
Parameters
Results
Analysis Date
Bgportingl,imlt
eth od
Cyanide, total
<0.005 mg/L
10/7/22
0.005 mg/L
EPA 335.4
Conductivity
405 mg/L
10/6/22
46.7 umho/cm
EPA 120.1
Oil & Grease (HEM)
<5.0 mg/L
10/10/22
5.0 mg/L
EPA 1664B
Phenols, total
<0.010 mg/L
10/10/22
0.010 mg/L
EPA 420.1
Fecal Coliform
<1 CFU/100 ml
10/4/22
1 CFU/100 ml
SM 9222 D
EPA 624.1
Attached
10/12/22
I hereby certify that!have reviewed and approve these data. fndo
Fh no on l,l
n 642 Tamco Road, Reidsville, North Carolina 27320
j j .� tel.[phone] fax.[phone]

1 ®tl ERt TEC ■' INC,
f Environmental Laboratories
Laboratory Certification #165
v 3
Client: City of Mount AiryWWTP MeritechID#: 100422172
Project: Plant Effluent LTM/EPS Analysis: 10/12/22
Client Sample ID: Plant Effluent Analyst: VWV
Sample Collection: 101040-2 Dilution Factor: 1
Report Date: 10/14/22
EPA 624.1 VOLATILE ORGANICS
Parameter
Result
Benzene
< 1.00 ug/L
Dichlorobromomethane
6.24 ug/L
Bromoform
< 1.00 ug/L
Methyl Bromide
<5.00 ug/L
Carbon Tetrachloride
< 1.00 ug/L
Chlorobenzene
< 1.00 ug/L
Chloroethane
<5.00 ug/L
2-Chloroethyl vinyl ether
<5.00 ug/L
Chloroform
21.9 ug/L
Methyl Chloride
<5.00 ug/L.
Chlorodibromomethane
< 1.00 ug/L.
1,2-Dibromoethane
< 1.00 ug/L
l,l-Dichloroethane
<1.00 ug/L
1 2-Dichloroethane
< 1.00 ug/L
1,4-Dichlorobenzene
< 1.00 ug/L
1,2-Dichlorobenzene
< 1.00 ug/L
1,3-Dichlorobenzene
< 1.00 ug/L
1,1-Dichloroethylene
<1.00ug/L
trans-1,2-Dichloroethylene
< 1.00 ug/L
1,2-Dichloropropane
< 1.00 ug/L
cis-1,3-Dichloropropylene
< 1.00 ug/L
trans-1,3-Dichloropropylene
< 1.00 ug/L
Ethyl benzene
< 1.00 ug/L
Methylene chloride
< 1.00 ug/L
1,1,2,2-Tetrachloroethane
< 1.00 ug/L
Tetrachloroethylene
< 1.00 ug/L,
Toluene
< 1.00 ug/L
1,I,1-Trichloroethane
<1.00 ug/L
1',1,2-Trichloroethane
<1.00ug/L
Trichloroethylene
< I.00 ug/L
Trichlorofluoromethane
<5.00 ug/L
Vinyl chloride
<5.00 ug/L
Additional Compounds
Acrolein
<50.0 ug/L
Acrylonitrile
<10.0 ug/L
I hereby certify that I have reviewed and approve these data.
LaborAtory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

Client:
Project:
Client Sample ID:
Sample Collection:
Report Date:
Parameter
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthracene
Benzo(a)pyrene
Benzo(b)fluoranthene
Benzo(k)fluoranthene
Benzo(g,hJ)perylene
Benzyl butyl phthalate
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl)ether
Bis(2-chloroisopropyl)ether
Bis(2-ethylhexyl)phthalate
4-Bromophenyl phenyl ether
2-Chloronaphthalene
4-Chlorophenyl phenyl ether
Chrysene
Dibenzo(a,h)anthracene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
3,3'-Dichlorobenzidine
Diethyl phthalate
Dimethyl phthalate
Di-n-butyl phthalate
2,4-Dinitrotoluene
2,6-Dinitrotoluene
Di-n-octyl phthalate
1,2-Diphenylhydrazine
MERI TECH, INC.
Environmental Laboratories
Laboratory Certificate #165
City of MT Airy WWTP
Plant Effluent LTM/EPS
Plant Effluent
10/04/22
10/2122
Meritech ID#:
100422171
Analysis:
10/1922
Extraction:
10/11/22
Analyst:
PM
Dilution Factor:
I
EPA 625.1 SEMIVOLATILE ORGANICS
Result
Parameter
Result
<10 ug/L
Fluoranthene
<10 ug/L
<10 ug/L
Fluorene
<10 ug/L
<10 ug(L
Hexachlorobenzene
<10 ug/L
<50 ug/L
Hexachlorobutadiene
<10 ug/L
<10 ug/L
Hexachlorocyclopentadiene
<50 ug/L
<10 ug/L
Hexachloroethane
<10 ug/L
<10 ug/L
Indeno(1,2,3-cd)pyrene
<10 ug/L
<10 ug/L
Isophorone
<to ug/L
<10 ug/L
2-Methylnaphthalene
<10 ug(L
<10 ug/L
Naphthalene
<10 ug(L
<10 ug/L
Nitrobenzene
<10 ug(L
<10 ug/L
N-Nitrosodimethylamine
<10 ug/L
<10 ug/L
N-Nitrosodi-n-propylamine
<10 ug(L
<10 ug/L
N-Nitrosodiphenylamine
<10 ug/L
<10 ug/L
Phenanthrene
<10 ug/L
<10 ug/L
Pyrene
<10 ug/L
<10 ug/L
1,2,4-Trichlorobenzene
<10 ug/L
<10 ug/L
<10 ug/L
4-Chloro-3-methylphenol
<10 ug(L.
<10 ug/L
2-Chlorophenol
<10 ug/L
<10 ug/L
2,4-Dichlorophenol
<10 ug/L
<10 ug/L
2,4-Dimethylphenol
<10 ug(L
<50 ug/L
2,4-Dinitrophenol
<50 ug/L
<10 ug/L
4,6-Dinitro-2-methylphenol
<50 ug/L
<10 ug/L
2-Nitrophenol
<10 ug/L
<10 ug/L
4-Nitrophenol
<50 ug/L
<10 ug/L
Pentachlorophenol
<50 ug/L
<10 ug/L
Phenol
<10 ug/L
<10 ug/L
2,4,6-Trichlorophenol
<10 ug/L
<10 ug/L
o-Cresol
<10 ug/L
p-Cresol
<10 ug/L
I hereby certify that I have reviewed and approve these data
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

y ENVIRONMENTAL LABORATORIES
:2 Laboratory Certification No. 166
Client: City of Mt. Airy WWTP Date Sampled 10/04/22
318 Wastewater Treatment Road Digested 10/05/22
Mt. Airy, NC 27030 Analysis 10/19/22
Attention Chris Marion Analyst: CWL,
NPDES # NC0021121
Meritech ID #
Sample ID
Result
Reportins Limit
NMLK1019
Method Blank
< 0.5 ng/L
0.5 ng/L
M10052201 Field Blank < 1.0 ng/L
1.0 ng/L
M10052204 Plant Effluent 2.52 ng/L
0 1.0 ng/L
I hereby certify that I have reviewed and approve these data.
La oratory Representative
642 Tamco Rd - PO Box 27 - Reidsville. NC 27320
[phone] Ph - [phone] Fax
E-Mail: [e-mail]

Annual Monitoring and Pollutant Scan
Permit No. NCO021121 Month: APRIL
Outfall: 001 Year: 2023
Facility Name: CITY OF MOUNT AIRY W WTP
Date of sampling: JANUARY 10, 2023
Analytical Laboratory: MERITECH. INC.
ORC: CHRIS MARION
Phone: [phone]
Parameter
- -
-Parameter
.Code
Sample .Type
..
-
Analytical' Method
�, -
11antitatl6n.
vel- ":'
Sample
,�,
Result,
' "Units of'•. '.-:
.+-
.�Measuree_nt`
_ m
Ammonia (as N)
C0610
Composite
EPA 350.1
0.1
<0.1
MG/L
Chlorine (total residual, TRC)
50060
Grab
SM4500 CLG-2011
15
<15
UG/L
Dissolved Oxygen
00300
Grab
SM4500 OG-2016
0.05
10
MG/L
Nitrite plus Nitrate Total (as N)
00630
Composite
EPA 353.2
0.1
12.2
MG/L
Total Kjeldahl Nitrogen
00625
Composite
EPA 351.1
0.2
<0.2
MG/L
Oil and Grease
00556
Grab
EPA 1664B
5
45.0
MG/L
Total Phosphorus
C0665
Composite
EPA 200.7
0.02
1.38
MG/L
Total Dissolved Solids
70295
Composite
SM2540C
10
235
MG/L
Hardness
00900
Composite
SM23403
1
44
MG/L
Metals _(totalrecoverehle),'cyanideand, total phenols
Antimony
01097
Composite
EPA 200.8
0.0005
0.0016
MG/L
Arsenic
01002
Composite
EPA 200.8
0.002
<0.002
MG/L
Beryllium
01012
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Cadmium
01027
Composite
EPA 200.8
0.00015
<0.00015
MG/L
Chromium
01034
Composite
EPA 200.8
0.002
<0.002
MG/L
Copper
01042
Composite
EPA 200.8
0.002
0.006
MG/L
Lead
01051
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Mercury (Method 1631E)
COMER
Grab
EPA 1631E
1.0
1.79
NG/L
Nickel
01067
Composite
EPA 200.8
0.0005
0.001
MG/L
Selenium
01147
Composite
EPA 200.8
0.001
<0.001
MG/L
Silver
01077
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Thallium
01059
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Zinc
01092
Composite
EPA 200.8
0.005
0.031
MG/L
Cyanide
00720
Grab
EPA 335.4
0.005
<0.005
MG/L
Total phenolic compounds
32730
Grab
EPA 420.1
0.01
<0.010
MG/L
Volatile'organic,'compounds �_
Acrolein
34210
Grab
EPA 624.1
50.00
<50.0
UG/L
Acrylonitrile
34215
Grab
EPA 624.1
10.00
<10.0
UG/L
Benzene
34030
Grab
EPA 624.1
1.00
<1.00
UG/L
Bromoform
32104
Grab
EPA 624.1
1.00
<1.00
UG/L
Carbon Tetrachloride
32102
Grab
EPA 624.1
1.00
<1.00
UG/L
Chlorobenzene
34301
Grab
EPA 624.1
1.00
<1.00
UG/L
Chlorodibromomethane
34306
Grab
EPA 624.1
1.00
<1.00
UG/L
Chloroethane
85811
Grab
EPA 624.1
5.00
<5.00
UG/L
2-chloroethyl vinyl ether
34576
Grab
EPA 624.1
5.00
<5.00
UG/L
Chloroform
32106
Grab
EPA 624.1
1.00
6.69
UG/L
Dichlorobromomethane
32101
Grab
EPA 624.1
1.00
1.7
UG/L
1,1-dichloroethane
34496
Grab
EPA 624.1
1.00
<1.00
UG/L
1,2-dichloroethane
32103
Grab
EPA 624.1
1.00
<1.00
UG/L
Trans-1,2-dichlorcethylene
34546
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1-dichloroethylene
34501
Grab
EPA 624.1
1.00
<1.00
UG/L
1,2-dichloropropane
34541
Grab
EPA 624.1
1.00
<1.00
UG/L
Form - DMR- PPA-1 Page 1

Annual Monitoring and Pollutant Scan
Permit No. NCO021121
Outfall: 001
Month: APRIL
Year: 2023
Parameter
Parameter
Code
Sample Type
Analytical Method
Q uantitation
Level
Sample
P
Result
Units of
Measurement
1,3-dichloropropylene
77163
Grab
EPA 624.1
1.00
<1.00
UG/L
Ethylbenzene
34371
Grab
EPA 624.1
1.00
<1.00
UG/L
Methyl Bromide
34413
Grab
EPA 624.1
5.00
<5.00
UG/L
Methyl Chloride
34418
Grab
EPA 624.1
5.00
<5.00
UG/L
Methylene Chloride
34423
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1,2,2-tetrachloroethane
81549
Grab
EPA 624.1
1.00
<1.00
UG/L
Tetrachloroethylene
34475
Grab
EPA 624.1
1.00
<1.00
UG/L
Toluene
34010
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1,1-trichloroethane
34506
Grab
EPA 624.1
1.00
<1.00
UG/L
1,1,2-trichloroethane
34511
Grab
EPA 624.1
1.00
<1.00
UG/L
Trichloroethylene
39180
Grab
EPA 624.1
1.00
<1.00
UG/L
Vinyl Chloride
39175
Grab I
EPA 624.1
5.00
<5.00
UG/L
new-exrracraoie compounds
P-chloro-m-creso
34452
Composite
EPA 625.1
10.00
<10
UG/L
2-chlorophenol
34586
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dichlorophenol
34601
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dimethylphenol
34606
Composite
EPA 625.1
10.00
<10
UG/L
4,6-dinitro-o-cresol
34657
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dinitrophenol
34616
Composite
EPA 625.1
50.00
<50
UG/L
2-nitrophenol
34591
Composite
EPA 625.1
10.00
<10
I UG/L
4-nitrophenol
34646
Composite
EPA 625.1
50.00
<50
UG/L
Pentachlorophenol
39032
Composite
EPA 625.1
50.00
<50
UG/L
Phenol
34694
Composite
EPA 625.1
10.00
<10
UG/L
2,4,6-trichlorophenol
34621
Composite
EPA 625.1
10.00
<10
UG/L
Base -neutral compounds
Acenaphthene
34205
Composite
EPA 625.1
10.00
<10
UG/L
Acenaphthylene
34200
Composite
EPA 625.1
10.00
<10
UG/L
Anthracene
CO220
Composite
EPA 625.1
10.00
<10
UG/L
Benzidine
39120
Composite
EPA 625.1
50.00
<50
UG/L
Benzo(a)anthracene
34526
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(a)pyrene
34247
Composite
EPA 625.1
10.00
<10
UG/L
3,4 benzofluoranthenc
34230
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(ghi)perylene
34521
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(k)fluoranthene
34242
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroethoxy) methane
34278
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroethyl) ether
34273
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroisopropyl) ether
34283
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-ethylhexyl) phthalate
39100
Composite
EPA 625.1
10.00
<10
UG/L
4-bromophenyl phenyl ether
34636
Composite
EPA 625.1
10.00
<10
UG/L
Butyl benzyl phthalate
34292
Composite
EPA 625.1
10.00
<10
UG/L
2-chloronaphthalene
34581
Composite
EPA 625.1
10.00
<10
UG/L
4-chlorophenyl phenyl ether
34641
Composite
EPA 625.1
10.00
<10
UG/L
Chrysene
34320
Composite
EPA 625.1
10.00
<10
UG/L
Di-n-butyl phthalate
39110
Composite
EPA 625.1
10.00
<10
UG/L
Di-n-octyl phthalate
34596
Composite
EPA 625.1
10.00
<10
UG/L
Dibenzo(a,h)anthracene
34556
Composite
EPA 625.1
10.00
<10
UG/L
1,2-dichlorobenzene
34536
Composite
EPA 625.1
10.00
<10
UG/L
Form - DMR- PPA-1 Page 2

Annual Monitoring and Pollutant Scan
Permit No. NC0021121 Month: APRIL
Outfall: 001 Year : 2023
Parameter
1,3-dichlorobenzcne
Parameter
Code
34566
Sample Type
Analytical Method
Quantitation
Level
sample
Result
Units of
Measurement
Composite
EPA 625.1
10.00
<10
UG/L
1,4-dichlorobenzene
34571
Composite
EPA 625.1
10.00
<10
UG/L
3,3-dichlorobenzidine
34631
Composite
EPA 625.1
50.00
<50
UG/L
Diethyl phthalate
34336
Composite
EPA 625.1
10.00
<10
UG/L
Dimethyl phthalate
34341
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dinitrotoluene
34611
Composite
EPA 625.1
10.00
<10
UG/L
2,6-dinitrotoluene
CO626
Composite
EPA 625.1
10.00
<10
UG/L
1,2-diphenylhydrazine
34346
Composite
EPA 625.1
10.00
<10
UG/L
Fluoranthene
CO376
Composite
EPA 625.1
10.00
<10
UG/L
Fluorene
34381
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorobenzene
CO700
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorobutadiene
39702
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorocyclo-pentadiene
34386
Composite
EPA 625.1
50.00
<50
UG/L
Hexachloroethane
34396
Composite
EPA 625.1
10.00
<10
UG/L
Indeno(1,2,3-cd)pyrene
34403
Composite
EPA 625.1
10.00
<10
UG/L
lsophorone
34408
Composite
EPA 625.1
10.00
<10
UG/L
Naphthalene
34696
Composite
EPA 625.1
10.00
<10
UG/L
Nitrobenzene
34447
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodi-n-propylamine
34428
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodimethylamine
34438
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodiphenylamine
34433
Composite
EPA 625.1
10.00
<10
UG/L
Phenanthrene
34461
Composite
EPA 625.1
10.00
<10
UG/L
Pyrene
34469
Composite
EPA 625.1
10.00
<10
UG/L
1,2,4,-trichlorobenzene
34551
Composite
EPA 625.1
10.00
<10
UG/L
Sampling should be conducted as specified in 40 CFR Part 136.
"1 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 managed 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 violations."
Aud Representativename
fn/me
A-r..nlp. c1, / �'/�a/J
Signature
AS/,! / Zo Z3
Date
Form - DMR- PPA-1 Page 3

Meritech, Inc.
Environmental Laboratory
-
Laboratory Certification No. 165
Contact: Chris Marion
Report Date:
1/24/2023
Client: City of Mount Airy WWTP
NPDES #:
NC0021121
318 Wastewater Treatment Rd
Project:
Plant Eff LTM
Mount Airy, NC 27030
Date Sample Rcvd:
1/10/2023
Meritech Work Order #
011023127 Sample:
Plant Effluent Composite
1/9-10/23
Parameters
Results
Analysis Date
Reporting Limit
Method
BOD, 5 day
2.2 mg/L
1/11/23
2.0 mg/L
SM 5210 B
Total Dissolved Solids
235 mg/L
1/13/23
10 mg/L
SM 2540C
Total Suspended Solids
<2.5 mg/L
1/11/23
2.5 mg/L
SM 2540 D
Ammonia, Nitrogen
<0.1 mg/L
1/12/23
0.1 mg/L
EPA 350.1
TKN
<0.20 mg/L
1/18/23
0.20 mg/L
EPA 351.1
Nitrate/Nitrite, Nitrogen
12.2 mg/L
1/13/23
0.10 mg/L
EPA 353.2
Nitrogen, total
12.2 mg/L
1/18/23
0.20 mg/L
EPA 353.2
Antimony, total
0.0016 mg/L
1/12/23
0.0005 mg/L
EPA 200.8
Arsenic, total
<0.002 mg/L
1/12/23
0.002 mg/L
EPA 200.8
Beryllium, total
<0.0005 mg/L
1/12/23
0.0005 mg/L
EPA 200.8
Cadmium, total
<0.00015 mg/L
1/12/23
0.00015 mg/L
EPA 200.8
Chromium, total
<0.002 mg/L
1/12/23
0.002 mg/L
EPA 200.8
Copper, total
0.006 mg/L
1/12/23
0.002 mg/L
EPA 200.8
Lead, total
<0.0005 mg/L
1/12/23
0.0005 mg/L
EPA 200.8
Molybdenum, total
<0.002 mg/L
1/12/23
0.002 mg/L
EPA 200.8
Nickel, total
0.0010 mg/L
1/12/23
0.0005 mg/L
EPA 200.8
Phosphorus, total
1.38 mg/L
1/12/23
0.020 mg/L
EPA 200.7
Selenium, total
<0.001 mg/L
1/12/23
0.001 mg/L
EPA 200.8
Silver, total
<0.0005 mg/L
1/12/23
0.0005 mg/L
EPA 200.8
Thallium, total
<0.0005 mg/L
1/12/23
0.0005 mg/L
EPA 200.8
Zinc, total
0.031 mg/L
1/12/23
0,005 mg/L
EPA 200.8
Hardness (titration)
44 mg/L
1/12/23
4 mg/L
SM 2340B
EPA 625.1
Attached
1/20/23
EPA 625.1
Meritech Work Order #
011023128 Sample:
Plant Effluent Grab
1/10/23
Parameters
Results
Analysis Date
Reporting Limit
Method
Cyanide, total
<0.005 mg/L
1/11/23
0.005 mg/L
EPA 335.4
Conductivity
379 mg/L
1/12/23
46.7 umho/cm
EPA 120.1
Oil & Grease (HEM)
<5.0 mg/L
1/16/23
5.0 mg/L
EPA 1664B
Phenols, total
<0.010 mg/L
1/17/23
0.010 mg/L
EPA 420.1
Fecal Coliform
3 CFU/100 ml
1/10/23
1 CFU/100 ml
SM 9222 D
EPA 624.1
Attached
1/16/23
EPA 624.1
I hereby certify that I have reviewed and approve these data. A yM
u rcaIsU
A'W V
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone]
fax.[phone]

Ak MERI TECH, INC.
Environmental Laboratories
Laboratory Certification #165
Client: City of Mount Airy WWTP Meritech M#: 011023128
Project: Plant Effluent LTM/EPS Analysis: 01/16/23
Client Sample D): Plant Effluent Analyst: V W V
Sample Collection: O1/10/23 Dilution Factor: 1
Report Date: 01/1823
EPA 624.1 VOLATILE ORGANICS
Parameter
Benzene
Dichlo ro bromomethane
Bromoform
Methyl Bromide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
2-Chloroethyl vinyl ether
Chloroform
Methyl Chloride
Chlorodibromomethane
1,2-Dibromoethane
1,I-Dichloroethane
1,2-Dichloroethane
1,4-Dichlorobenzene
1,2-Dichlorobenzene
1,3-Dichlorobenzene
I, I-Dichloreethylene
trans- l,2-Dichloro ethylene
1,2-Dichloropropane
cis-1,3-Dichloropropylene
trans-1,3-Dichloropropylene
Ethyl benzene
Methylene chloride
1,1,2,2-Tetrachloroethane
Tetrachloroethylene
Toluene
1,1,1-Trichloroethane
1,1,2-Trichloroethane
Trichloroethylene
Trichlorofluoromethane
Vinyl chloride
Additional Compounds
Acrolein
Acrylonitrile
I hereby certify that I have reviewed and approve these data
Result
< 1.00 ug/L
1.70 ug/L
< 1.00 ug/L
<5.00 ug/L
< 1.00 ug/L
< I.00 ug/L
<5.00 ug/L
< 5.00 ug/L
6.69 ug/L
<5.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/L
< 1.00 ug/1.
< 1.00 ug/L
< 5.00 ug/L
<5.00 ug/L
<50.0 ug/L
< 10.0 ug/L
Labo to R tentative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

Client:
Project:
Client Sample ID:
Sample Collection:
Report Date:
Parameter
Acenaphthene
Acenaphthylene
Anthracene
Benzidine
Benzo(a)anthmcene
Benzo(a)pyrene
Benzo(b)fluomuthene
Benzo(k)fluomnthene
Benzo(g,h,i)perylene
Benzyl butyl phthalate
Bis(2-chloroethoxy)methane
Bis(2-chloroethyl)ether
Bis(2chloroisopropyl)ether
Bis(2-ethylhexyl)phthalate
4-Bromophenyl phenyl ether
2-Chloronaphthalene
4-Chlorophenyl phenyl ether
Chrysene
Dibenzo(a,h)anthmcene
1,2-Dichlorobenzene
1,3-Dichlorobeazene
1,4-Dichlorobenzene
3,3' Dichlorobenzidine
Diethyl phthalate
Dimethyl phtbalate
Di-n-butyl phthalate
2,4-Dinitrotoluene
2,6-Dinitrotoluene
Di-noctyl phthalate
1,2-Diphenylhydmzine
MERI TECH, INC.
Environmental Laboratories
Laboratory Certificate #165
City of MT Airy W WTP Meritech ID#: 011023127
Plant EffluentLTM/EPS Analysis: 0120/23
Plant Effluent Extraction: 01716/23
0111023
O1/23/23
Analyst: PM
Dilution Factor: I
EPA 625.1 SEMIVOLATILE ORGANICS
Result
Parameter
esult
<10 ug/L
Fluoranthene
<10 ug/L
<10 ug/L
Fluorene
<10 ug/L
<10 ug/L
Hexachlorobenzene
<10 ug/L
<50 ug/L
Hexachlorobutadiene
<10 ug/L
<10 ug/L
Hexachlorocyclopentadiene
<50 ug/L
<10 ug/L
Hexachloroethane
<10 ug/L
<10 u9/1.
Indeno(IA3-cd)pyrene
<10 ug/L
<10 ug/L
Isophorone
<10 ug/L
<10 ug/L
2-Methylnaphthalene
<10 ug/L
<10 ug/L
Naphthalene
<10 ug/L
<10 ug/L
Nitrobenzene
<10 ug/L
<10 ug/L
N-Nitrosodimethylamine
<10 ug/L
<10 ug/L
N-Nitrosodi-n-propylamine
<10 ug/L
<10 ug/L
N-Nitrosodiphenylamine
<10 ug/L
<10 ug/L
Phenanthrene
<10 ug/L
<10 ug/L
Pyrene
<10 ug/L
<10 ug/L
1,2,4-Trichlorobenzene
<10 ug/L
<10 ug/L
<10 ug/L
4-Chloro-3-methylphenol
<10 ug/L
<10 ug/L
2-Chlorophenol
<10 ug/L
<10 ug/L
2,4-Dichlorophenol
<10 ug/L
<10 ug/L,
2,4-Dimethylphenol
<10 ug/L
<50 ug/L
2,4-Dinitrophenol
<50 ug/L
<10 ug(L
4,6-Dinitro-2-methylphenol
<50 ug/L
<10 ug/L
2-Nitrophenol
<10 ug/L
<10 ug/L
4-Nitrophenol
<50 ug/L
<10 ug/L
Pentachlorophenol
<50 ug/L
<10 ug/L
Phenol
<10 ug/L
<10 ug/L
2A6-Trichlorophenol
<10 ug/L
<10 ug/L
o-Cresol
<10 ug/L
p-Cresol
<10 ug/L
I hereby certify that I have reviewed and approve these data. V� w. I//.et r
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * info@meritechlabs:com

Client:
Attention
NPDES #
MERI TECH, INC.
ENVIRONMENTAL LABORATORIES
Laboratory Certification No. 165
City of Mt. Airy WWTP
318 Wastewater Treatment Road
Mt. Airy, NC 27030
Chris Marion
NC0021121
Date Sampled
O1/10/23
Digested
01/11/23
Analysis
01/19/23
Analyst:
CWL
EPA 1631-E Low Level Mercury Analysis
Meritech ID # Sample ID Result Reporting Limit
MBLK0119
Method Blank
< 0.5 ng/L
0.5 ng/L
M01112307
Field Blank
< 1.0 ng/L
1.0 ng/L
M01112308
Plant Effluent
1.79 ug/L
1.0 ng/L
I hereby certify that I have reviewed and approve these data.
G
Laboratory Represen ative
642 Tamco Rd - PO Box 27 - Reidsville, NC 27320
[phone] Ph - [phone] Fax
E-Mail: [e-mail]

Annual Monitoring and Pollutant Scan
Permit No. NCO021121 Month: JULY
Outfall: 001 Year: 2024
Facility Name: CITY OF MOUNT AIRY W WTP
Date of sampling: APRIL 9. 2024
Analytical Laboratory: MERITECH, INC.
ORC: CHRIS MARION
Phone: [phone]
Parameter
Parameter
Code
Sample Type
Analytical Method
Quantitation
Level
Sample
Result
Units of
Measurement
Ammonia (as N)
C0610
Composite
EPA 350.1
0.1
<0.1
MG/L
Chlorine (total residual, TRC)
50060
Grab
SM4500 CLG-2011
15
<15
UG/L
Dissolved Oxygen
00300
Grab
SM4500 OG-2016
0.05
8.05
MG/L
Nitrite plus Nitrate Total (as N)
00630
Composite
EPA 353.2
0.1
9.11
MG/L
Total Kjeldahl Nitrogen
00625
Composite
EPA 351.1
0.2
0.72
MG/L
Oil and Grease
00556
Grab
EPA 1664B
5
<5.0
MG/L
Total Phosphorus
C0665
Composite
EPA 200.7
0.02
1.85
MG/L
Total Dissolved Solids
70295
Composite
SM2540C
10
266
MG/L
Hardness
00900
Composite
SM2340B
1
92
MG/L
Metals (total recoverable), cyanide-and.total phenols .
Antimony
01097
Composite
EPA 200.8
0.0005
0.0007
MG/L
Arsenic
01002
Composite
EPA 200.8
0.002
<0.002
MG/L
Beryllium
01012
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Cadmium
01027
Composite
EPA 200.8
0.00015
<0.00015
MG/L
Chromium
01034
Composite
EPA 200.8
0.002
<0.002
MG/L
Copper
01042
Composite
EPA 200.8
0.002
0.049
MG/L
Lead
01051
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Mercury (Method 1631E)
COMER
Grab
EPA 1631E
1.0
1.37
NG/L
Nickel
01067
Composite
EPA 200.8
0.0005
0.0015
MG/L
Selenium
01147
Composite
EPA 200.8
0.001
0.001
MG/L
Silver
01077
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Thallium
01059
Composite
EPA 200.8
0.0005
<0.0005
MG/L
Zinc
01092
Composite
EPA 200.8
0.005
0.028
MG/L
Cyanide
00720
Grab
EPA 335.4
0.005
<0.005
MG/L
Total phenolic compounds
32730
Grab
EPA 420.1
0.01
<0.010
MG/L
Volatile organic compounds - f
Acrolein
34210
Grab
EPA 624.1
100.00
<100
UG/L
Acrylonitrile
34215
Grab
EPA 624.1
20.00
<20.0
UG/L
Benzene
34030
Grab
EPA 624.1
2.00
<2.00
UG/L
Bromoform
32104
Grab
EPA 624.1
2.00
<2.00
UG/L
Carbon Tetrachloride
32102
Grab
EPA 624.1
2.00
<2.00
UG/L
Chlorobenzene
34301
Grab
EPA 624.1
2.00
<2.00
UG/L
Chlorodibromomethane
34306
Grab
EPA 624.1
2.00
<2.00
UG/L
Chloroethane
85811
Grab
EPA 624.1
10.00
<10.0
UG/L
2-chloroethyl vinyl ether
34576
Grab
EPA 624.1
10.00
<10.0
UG/L
Chloroform
32106
Grab
EPA 624.1
2.00
18.9
UG/L
Dichlorobromomethane
32101
Grab
EPA 624.1
2.00
<2.00
UG/L
1,1-dichloroethane
34496
Grab
EPA 624.1
2.00
<2.00
UG/L
1,2-dichloroethane
32103
Grab
EPA 624.1
2.00
<2.00
UG/L
Trans-1,2-dichloroethylene
34546
Grab
EPA 624.1
2.00
<2.00
UG/L
1,1-dichloroethylene
34501
Grab
EPA 624.1
2.00
<2.00
Ii
1,2-dichloropropane
34541
Grab
EPA 624.1
2.00
<2.00
UG/L
Form - DMR- PPA-1 Page 1

Annual Monitoring and Pollutant Scan
Permit No. NCO021121 Month: JULY
Outfall: 001 Year: 2024
Parameter
Parameter
Code
Sample Type
Analytical Method
Quantitation
Level
Sample
Result
Units of
Measurement
1,3-dichloropropylene
77163
Grab
EPA 624.1
2.00
<2.00
UG/L
Ethylbenzene
34371
Grab
EPA 624.1
2.00
<2.00
UG/L
Methyl Bromide
34413
Grab
EPA 624.1
10.00
<10.0
UG/L
Methyl Chloride
34418
Grab
EPA 624.1
5.00
<5.00
UG/L
Methylene Chloride
34423
Grab
EPA 624.1
2.00
<2.00
UG/L
1,1,2,2-tetrachloroethane
81549
Grab
EPA 624.1
2.00
<2.00
UG/L
Tetrachloroethylene
34475
Grab
EPA 624.1
2.00
<2.00
UG/L
Toluene
34010
Grab
EPA 624.1
2.00
<2.00
UG/L
1,1,1-trichlorocthane
34506
Grab
EPA 624.1
2.00
<2.00
UG/L
1,1,2-trichloroethane
34511
Grab
EPA 624.1
2.00
<2.00
UG/L
Trichloroethylene
39180
Grab
EPA 624.1
2.00 1
<2.00 1
UG/L
Vinyl Chloride
39175
Grab
EPA 624.1
10.00
<10.0
UG/L
Acid -extractable compounds
P-chloro-m-ereso
34452
Composite
EPA 625.1
10.00
<10
UG/L
2-chlorophenol
34586
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dichlorophenol
34601
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dimethylphenol
34606
Composite
EPA 625.1
10.00
<10
UG/L
4,6-dinitro-o-cresol
34657
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dinitrophenol
34616
Composite
EPA 625.1
50.00
<50
UG/L
2-nitrophenol
34591
Composite
EPA 625.1
10.00
<10
UG/L
4-nitrophenol
34646
Composite
EPA 625.1
50.00
<50
UG/L
Pentachlorophenol
39032
Composite
EPA 625.1
50.00
<50
UG/L
Phenol
34694
Composite
EPA 625.1
10.00
<10
UG/L
2,4,6-trichlorophenol
34621
Composite
EPA 625.1
10.00
<10
UG/L
Base -neutral compounds
Acenaphthene
34205
Composite
EPA 625.1
10.00
<10
UG/L
Acenaphthylene
34200
Composite
EPA 625.1
10.00
<10
UG/L
Anthracene
CO220
Composite
EPA 625.1
10.00
<10
UG/L
Benzidine
39120
Composite
EPA 625.1
50.00
<50
UG/L
Benzo(a)anthracene
34526
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(a)pyrene
34247
Composite
EPA 625.1
10.00
<10
UG/L
3,4 benzofluoranthene
34230
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(ghi)perylene
34521
Composite
EPA 625.1
10.00
<10
UG/L
Benzo(k)fluoranthene
34242
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroethoxy) methane
34278
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroethyl) ether
34273
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-chloroisopropyl) ether
34283
Composite
EPA 625.1
10.00
<10
UG/L
Bis (2-ethylhexyl) phthalate
39100
Composite
EPA 625.1
10.00
<10
UG/L
4-bromophenyl phenyl ether
34636
Composite
EPA 625.1
10.00
<10
UG/L
Butyl benzyl phthalate
34292
Composite
EPA 625.1
10.00
<10
UG/L
2-chloronaphthalene
34581
Composite
EPA 625.1
10.00
<10
UG/L
4-chlorophenyl phenyl ether
34641
Composite
EPA 625.1
10.00
<10
UG/L
Chrysene
34320
Composite
EPA 625.1
10.00
<10
UG/L
Di-n-butyl phthalate
39110
Composite
EPA 625.1
10.00
<10
UG/L
Di-n-octyl phthalate
34596
Composite
EPA 625.1
10.00
<10
UG/L
Dibenzo(a,h)anthracene
34556
Composite
EPA 625.1
10.00
<10
UG/L
1,2-dichlorobenzene
34536
Composite
EPA 625.1
10.00
<10
UG/L
Form - DMR- PPA-1 IPage 2

Annual Monitoring and Pollutant Scan
Permit No. NCO021121
Outfall: 001
Month: JULY
Year: 2024
Parameter
1,3-dichlorobenzene
Parameter
Code
34506
Sample Type
Analytical Method
Quantitation
Level
Sample
Result
Units of
Measurement
Composite
EPA 625.1
10.00
<10
UG/L
1,4-dichlorobenzene
34571
Composite
EPA 625.1
10.00
<10
UG/L
3,3-dichlorobenzidine
34631
Composite
EPA 625.1
50.00
<50
UG/L
Diethyl phthalate
34336
Composite
EPA 625.1
10.00
<10
UG/L
Dimethyl phthalate
34341
Composite
EPA 625.1
10.00
<10
UG/L
2,4-dinitrotoluene
34611
Composite
EPA 625.1
10.00
<10
UG/L
2,6-dinitrotoluene
C0626
Composite
EPA 625.1
10.00
<10
UG/L
1,2-diphenylhydrazine
34346
Composite
EPA 625.1
10.00
<10
UG/L
Fluoranthene
C0376
Composite
EPA 625.1
10.00
<10
UG/L
Fluorene
34381
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorobenzene
C0700
Composite
EPA 625.1
10.00
<10
UG/L
Hexachlorobutadiene
39702
Composite
EPA 625.1
10.00
<10
UG/L
Iiexachlorocyclo-pentadiene
34386
Composite
EPA 625.1
50.00
<50
UG/L
Hexachloroethane
34396
Composite
EPA 625.1
10.00
<10
UG/L
Indeno(1,2,3-cd)pyrene
34403
Composite
EPA 625.1
10.00
<10
UG/L
Isophorone
34408
Composite
EPA 625.1
10.00
<10
UG/L
Naphthalene
34696
Composite
EPA 625.1
10.00
<10
UG/L
Nitrobenzene
34447
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodi-n-propylamine
34428
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodimethylamine
34438
Composite
EPA 625.1
10.00
<10
UG/L
N-nitrosodiphenylamine
34433
Composite
EPA 625.1
10.00
<10
UG/L
Phenanthrene
34461
Composite
EPA 625.1
10.00
<10
UG/L
Pyrene
34469
Composite
EPA 625.1
10.00
<10
UG/L
1,2,4,-trichlorobenzene
34551
Composite
EPA 625.1
10.00
<10
UG/L
Sampling should be conducted as specified in 40 CFR Part 136.
"1 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 managed 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 violations."
Autho ' presentative �e
(n
fops, ` %,, *.j
Signature
7AI200Y
Date
Form - DMR- PPA-1 Page 3

Meritech, Inc.
;.;,... Environmental Laboratory
< Laboratory Certification No.165
AE
Contact: Chris Marion
Report Date:
4/23/2024
Client: City of Mount Airy WWTP
NPDES #:
NCO021121
318 Wastewater Treatment Rd
Project:
Plant Eff LTM
Mount Airy, NC
27030
Date Sample Rcvd:
4/9/2024
Meritech Work Order #
040924252 Sample:
Plant Effluent Composite
4/8-9/24
Parameters
Results
Analysis Date
Reporting Limit
Method
BOD, 5 day
<2.0 mg/L
4/10/24
2I0 mg/L
SM 5210 B
Total Dissolved Solids
266 mg/L
4/11/24
10 mg/L
SM 2540C
Total Suspended Solids
<2.5 mg/L
4/10/24
2.5 mg/L
SM 2540 D
Ammonia, Nitrogen
<0.1 mg/L
4/11/24
0.1 mg/L
EPA 350.1
TKN
0.72 mg/L
4/16/24
0.20 mg/L
EPA 351.1
Nitrate/Nitrite, Nitrogen
9.11 mg/L
4/10/24
0.10 mg/L
EPA 353.2
Nitrogen, total
9.83 mg/L
4/16/24
0.20 mg/L
EPA 353.2
Antimony, total
0.0007 mg/L
4/12/24
0.0005 mg/L
EPA 200.8
Arsenic, total
<0.002 mg/L
4/12/24
0.002 mg/L
EPA 200.8
Beryllium, total
<0.0005 mg/L
4/12/24
0.0005 mg/L
EPA 200.8
Cadmium, total
<0.00015 mg/L
4/12/24
0.00015 mg/L
EPA 200.8
Chromium, total
<0.002 mg/L
4/12/24
0.002 mg/L
EPA 200.8
Copper, total
0.049 mg/L
4/12/24
0.002 mg/L
EPA 200.8
Lead, total
<0.0005 mg/L
4/12/24
0.0005 mg/L
EPA 200.8
Molybdenum, total
<0.002 mg/L
4/12/24
0.002 mg/L
EPA 200.8
Nickel, total
0.0015 mg/L
4/12/24
0.0005 mg/L
EPA 200.8
Phosphorus, total
1.85 mg/l,
4/12/24
0.020 mg/L
EPA 200.7
Selenium, total
0.001 mg/L
4/12/24
0.001 mg/L
EPA 200.8
Silver, total
<0.0005 mg/L
4/12/24
0.0005 mg/L
EPA 200.8
Thallium, total
<0.0005 mg/L
4/12/24
0.0005 mg/L
EPA 200.8
Zinc, total
0.028 mg/L
4/12/24
0.005 mg/L
EPA 200.8
Hardness (titration)
92 mg/L
4/11/24
4• mg/L
SM 2340C
EPA 625.1
Attached
4/22/24
EPA 625.1
Meritech Work Order #
040924253 Sample:
Plant Effluent Grab
4/9/24
Parameters
Results
Analysis Date
ReportingLimit imit
Method
Cyanide, total
<0.005 mg/L
4/15/24
0.005 mg/L
EPA 335.4
Conductivity
446 mg/L
4/11/24
46.7 umho/cm
EPA 120.1
Oil & Grease (HEM)
<5.0 mg/L
4/15/24
5.0 mg/L
EPA 1664B
Phenols, total
<0.010 mg/L
4/16/24
0.010 mg/L
EPA 420.1
EPA 624.1
Attached
4/11/24
EPA 624.1
Meritech Work Order #
040924254 Sample: Plant Effluent Grab
4/9/24
Parameters
Results
Analysis Date
Reporting Limit
Method
Fecal Coliform
1 CFU/100 ml
4/9/24
_ 1 CFU/1004-7--S)49222 D
hereby certify that 1 have reviewed and approve these data. (&r-}«
Laboratory Representative
642 Tamco Road, Reidsville, North Carolina 27320
tel.[phone] Fax.[phone]

�11
MERI TECH, INC.
Environmental Laboratories
'
Laboratory Certification #165
Client:
City oFMounty Airy W WTP Meritech ID#: 040924253
Project:
Plant Effluent LTM/EPS Analysis: 04/1 1/24
Client Sample ID:
Plant Effluent Analyst: KD
Sample Collection:
04/090-4 Dilution Factor: 2
Report Date: 04/17/24
EPA 624.1 VOLATILE ORGANICS
Parameter
Result
Benzene
< 2.00 ug/L
Dichlorobromomethane
<2.00 ug/L
Bromofonn
<2.00 ug/L
Methyl Bromide
<10.0 ug/L
Carbon Tetrachloride
<2.00ug/L
Chlorobenzene
< 2.00 ug/L
Chloroethane
<10.0 ug/L
2-Chloroethyl vinyl ether
<10.0 ug/L
Chloroform
18.9 ug/L
Methyl Chloride
<5.00 ug/L
Chlorodibromomethane
<2.00 ug/L
1,2-Dibromoethane
<2.00 ug/L
I,I-Dichloroethane
<2.00 ug/L
1,2-Dichloroethane
-< 2.00 ug/L
1,4-Dichlorobenzene
<2.00 ug/L
1,2-Dichlorobenzene
< 2.00 ug/L
1,3-Dichlorobenzene
< 2.00 ug/L
I,I-Dichloroethylene
< 2.00 ug/L
trans-1,2-Dichloroethylene
<2.00 ug/L
1,2-Dichloropropane
< 2.00 ug/L
cis-1,3-Dichloropropylene
<2.00 ug/L,
trans-1,3-Dichloropropylene
<2.00 ug/L
Ethyl benzene
<2.00 ug/L
Methylene chloride
<2.00 ug/L
1,1,2 2-retrachloroethane
< 2.00 ug/L
Tetrachloroethylene
<2.00 ug/L
Toluene
< 2.00 ug/L
1.1,1-Trichloroethnne
<2.00 ug/L
1.1,2-Trichloroethane
< 2.00 ug/L
Trichloroethylene
< 2.00 ug/L
Trichlorofluoromethane
<10.0 ug/L
Vinyl chloride
<10.0 ug/L
Additional Compounds
Acrolein
<I00 ug/L
Acrylonitrile
<20.0 ug/L
I hereby certify that I have reviewed and approve these data. /.,. 1,/ �/ � (
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

MERITECH,
INC.
`
Environmental Laboratories
Laboratory Certificate #165
Client:
City of MT Airy WWTP
Meritech ID#:
040924252
Project:
Plant Effluent LTM/BPS
Analysis:
04/22/24
Client Sample ID:
Plant Effluent
Extraction:
04/15/24
Sample Collection:
04/09/24
Analyst:
PM
Report Date:
04/23/24
Dilution Factor:
I
EPA 625.1 SEMIVOLATILE ORGANICS
Parameter
Result
Parameter
Result
Acenaphthene
<10 ug/L
Fluoranthene
<10 ugfL
Acenaplithylene
<10 ug/L
Fluorene
<10 ug/L
Anthracene
<10 ugfL
Flexachlorobenzene
<10 ug/L
Benzidine
<50 ug(L
Hexachlorobutadiene
<10 ug/L
Benzo(a)antliracene
<10 ug/L
Hexachloroeyclopentadiene
<50 ug/L
Benzo(a)pyrene
<10 ug/L
Hexachloroethane
<10 ug/L
Benzo(b)fluoranlhene
<10 ug/L
Indeno(I 2,3-ed)pyrene
<10 ug/L
Benzo(k)fluoranthene
<10 ug/L
Isophorone
<10 ug'L
Benzo(g,h,i)perylene
<10 ug/L
2-Melhy1naphthalette
<10 ug/L
Benzyl butyl phthalate
<10 ug/L
Naphthalene
<I0 ug/L
Bis(2-chloroethoxy)methane
<10 ug/L
Nitrobenzene
<10 ugfL
Bis(2-chloroethyl)ether
<10 ug/L
N-Nitrosodimelhylamine
<10 ug/L
Bis(2-chloroisopropyl)ether
<10 ug/L
N-Nitrosodi-n-propylamine
<10 ug/L
Bis(2-ethylhexyl)phthalale
<10 ug/L
N-Nitrosodiphenylamine
<10 ug/L
4-Brontophenylphenyl ether
<10 ugfL
Phenanthrene
<10 ug/L
2-Chloronaphthalene
<10 ug/L
Pyrene
<10 ug/L
4-Chlorophenyl phenyl ether
<10 ug/L
I,2,4-Trichlorobenzene
<10 ug/L
Chrysene
<10 ug/L
Dibenzo(a,h)anthracene
<10 ug/L
4-Chloro-3-methylphenol
<10 ug/L
1 2-Dichlorobenzene
<10 ug/L
2-Chlorophenol
<10 ug/L
1,3-Dichlorobenzene
<10 ug/L
2,4-Dichlorophenot
<10 ug/L
1,4-Dichlorobenzene
<10 ug/L
2,4-Dimethylphenol
<10 ug'L
33-Dichlorobenzidine
<50 ug/L
2,4-Dinitrophenol
<50 ug/L
Diethyl phthalate
<10 ug/L
4,6-Dinitro-2-methylphenol
<50 ug/L
Dimethyl phthalate
<10 ug/L
2-Nitrophenol
<10 ug/L
Di-n-butyl phthalate
<10 ug/L
4-Nitrophenol
<50 ug/L
2,4-Dinitrotoluene
<10 ug/L
Pentachlorophenol
<50 ug/L
2,6-Dinitrotoluene
<10 ug/L
Phenol
<10 ug/L
Di-n-octyl phthalate
<10 ug/L
2,4,6-Trichlorophenol
<10 ug/L
1,2-Diphenylhydrazine
<10 ug/L
o-Cresol
<10 ugfL
p-Cresol
<10 ug/L
I hereby certify that I have reviewed and approve these data. (/,,,,, M1 a (/"(,*
Laboratory Representative
642 Tamco Road * Reidsville, NC 27320
[phone] * [e-mail]

Client:
Attention
NPDES 4
MERI TECH, INC.
ENVIRONMENTAL LABORATORIES
Laboratory Certification No. 165
City of Mt. Airy W WTP
318 Wastewater Treatment Road
Mt. Airy, NC 27030
Chris Marion
NC0021121
Date Sampled 04/09/24
Digested 04/10/24
Analysis 04/30/24
Analyst: CWL
EPA 1631-E Low Level Mercury Analysis
Meritech ID 4 Sample ID Result Reporting Limit
MBLK0430
Method Blank
< 0.5 ng/L
0.5 ng/L
M04102409
Field Blank
< I.Ong/L
1.0 ng/L
M04102410
I'lant Effluent
1.37 ng/L
1.0 ng/L
I hereby certify that I have reviewed and approve these data.
tea" ✓/ jj_y /
Laboratory Representative
642 Tamco Rd - PO Box 27 - Reidsville, NC 27320
[phone] Ph - [phone] Fax
E-Mail: [e-mail]

This page intentionally left blank.

EPA Identrcadon Number NPDES PemilNumba Fealty Name 0.lall Number FamAppmsed0305119
110040038143 NC0023121 Mount Airy WWTP 001 OMB Na 20400WC
Maximum =011Y Discha a Average DailDlschaEps
Analytical MLor MDL
Pollutant
Numherol
(W)
Value Units Value Units
Method' (include units)
Sample
No additional sampling is required by NPDES permitting authority.
❑ ML
❑ MDL
❑ ML
❑MDL
O ML
Cl MDL
❑LIL
❑MDL
❑ ML
❑ MDL
❑ ML
❑LDL
❑ ML
❑MDL
❑ ML
❑MDL
❑ ML
❑ MOL
❑ ML
❑ MDL
❑ ML
❑ MDL
O ML
O MDL
O ML
O MDL
O6a
❑MDL
O ML
O MDL
O ELL
❑MDL
O ML
❑MDL
I Sampling shall be canducted according to sufficiently sensitive test procedures (i.e., methods) approved under 40 CFR 136 for the analysis of pollutants or pollutant parameters or required
under 40 CFR chapter I, subchapter N or 0. See instructions and 40 CFR 12221(e)(3).
EPA him 3510-2A(11wised 3.19) Page23

This page intentionally left blank.

EPAldentifulionhimeer NPOESPemdtNunber Fad4Name
110040038143 NC0021121 Mount Airy WwRP
Oudall Number Farm ApproM(131009
001 OMB No. 2040-0004
MONITORINGTABLE E. EFFLUENT O• WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Information
Test Number 01
Test Number 02
Test Number 03
Test species
Pimephales promelas 1000
Pimephales promelas 1000
Pimephales promales 1000
Age at initiation of test
<48 hours
<48 hours
<48 hours
Oulfall number
001
001
001
Date sample collected
07/11/2023
10/03/2023
01/23/2024
Date test started
07/11/2023
10/03/2023
01/23/2024
Duration
7 days
7 days
7 days
Toxicity Test Methods
Test method number
1000.0
1000.0
1000.0
Manual tide
Shortterm methods for estimating the Chroni
Short term methods for estimating the Chroip
Shortterm methods for estimating the Chroqd
Edition number and year of publication
4th edition -2002
4th edition -2002
Page number(s)
53-206
53-106
Sample Type
Check one:
❑ Grab
IZI 24-h0urcomposite
❑ Grab
© 24-hour composite
❑ Grab
❑� 24-hour composite
Sample Location
Check one:
❑ Before Disinfection
❑ After Disinfection
© After Dechlormation
❑ Before Disinfection
❑ After Disinfection
© After Dechlodnation
❑ Before disinfection
❑ After disinfection
After dechlorination
Paint In Treatment Process
Describe the point in the treatment process
at which the sample was collected for each
test.
Final Effluent below cascade
Fin al Ef.ent below cascade
Final Effluent below cascade
ToxlcltvTvne
Indicate for each test whether the lest was
performed to asses acute or chrcnic toxicity,
or both. (che&,Dl response.)
❑ Acute
© Chronic
❑ Both
❑ Acute
❑ Chronic
❑ Both
❑ Acute
Chronic
❑ Both
EPA Form 3510-2A (ReNsed 3.19) Pa9e25

EPA lderaficaSon Nwber NPDES Pemet Number Feeley Nacre
11OD40038143 NCO021121 Mouat AiryWWfP
Oudall Number Fenn Approved 0305119
001 OMB No. 2040-0D04
TABLE E. EFFLUENT MONITORING r• WHOLE EFFLUENT TOXICITY
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Number 01
Test Number D2
Test Number 03
Test Type
Indicate the type of test performed. (check one
response.)
❑ static
© Static -renewal
❑ Flow -through
❑ Static
❑� StatlGrenewal
❑ Flow -through
state
tlFmnewal
T[O vr•through
Source of Dilution Water
Indicate the source of dilution water. (Check
one response.)
© Laboratorywater
❑ Receving water
Laboratorywater
❑ Receiving water
❑ Laboratory water
❑ Receiving water
If laboratory water, specify type.
Synthetic
Synthetic
Synthetic
If receiving water, specify source.
Type of Dilution Water
Indicate the type of dilution water. If salt
water, specify 'natural• or type of artificial
sea salts or brine used.
Freshwater
❑Salt water (specify)
Fresh water
❑Salt water (speafy)
Freshwater
❑Salt water (specify)
Percents eEfFluent Used
Spa* the percentage effluent used for all
concentrations in the testsedes.
10.5%, 21%, 42%, 84%, 100%
10.5%, 21%, 42%, 84%, 100%
10.5%, 21%, 42%, 84%, 100%
Parameters Tested
Check the parameters tested.
pH
❑ Salinity
Temperature
❑r�YAmmonia
UZ DIssolved oxygen
❑� pH
❑�ySalinity
tG Tem erature
,❑,/Ammonia
L+J Diss eld oxygen
❑� pH
❑ Salinity
gTemperature
El Ammonia
UrDissoNed oxygen
Acute Test Results
Percent survival in 100%effluent
%
%
LG,p
95%confidence interval
%
%,
%
Control percent survival
%
%
%
EPA Form 351 D2A gle,lsed 3-19) Page 26

EPAIderNfiwtlan Number
110010038143
NPDES Pemut NumberFaity Name
NC0021121 Mount Airy WWrP
0"Nomber
001
FmnAypmM031DR19
OMB No.2040-0004
MONITORINGTABLE E. EFFLUENT FOR WHOLE
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Number 02
Test Number 02
Test Number 03
Acute Test Results Confinued
Other (desribe)
Chronic Test Results
NOEC
100 %
100 %
100
ICZ
%
%
%
Control percent survival
100 %
100 %
100 %
Other(desaibe)
_Quality ControUQuall Assurance
Is reference toxicant data avalable7
0 Yes
❑ No
❑� Yes
❑ No
Yes
❑ No
Was reference toxicant test within
acceptable bounds?
0 Yes
❑ No
©Yes
El No
©Yes
❑ No
What date was reference toxicant lest run
MND 7
07/11/2023
10/03/2023
01/23/2024
Other (describe)
EPA Form 3510.2A (Redsed 3.19) Page 27

EPAlderuficauen N.ber NPOES Permit Nmber Facility Name Oudafl Number Form Appmved03)05n9
110040038143 NC0021121 Mount Airy WWFP 001 OMB No.2D40-0004
TABLE E. EFFILLIENT MONITORING O• WHOLE
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Information
Test Number 04
Test Number_
Test Number_
Teslspecles
Pimcphales promelas 1000
Age at initiation of test
<48 hours
Outfall number
001
Date sample collected
04/09/2024
Date test started
04/09/2024
Duration
7 days
Toxicity Test Methods
Test method number
1000.0
Manual the
Short term methods for estimating the Chroni
Edition number and year of publication
4th edition -2002
Page number(s)
53-106
Sample Type
Check one:
❑ Grab
10 24-hourcomposite
❑ Grab
❑ 24-hourcomposite
❑ Grab
❑ 24-hourcomposite
Sample Location
Check one:
❑ Before Disinfection
❑ After Disinfection
❑� After Dechlorination
❑ Before Disinfection
❑ After Disinfection
❑ After Dechlorinabon
❑ Before disinfection
❑ After disinfection
❑ After dechlodnaton
Point in Treatment Process
Describe the point in the treatment process
at which the sample was collected for each
test.
Fnal Effluent below cascade
Toxicity Type
Indicate for each test whether the test was
performed to asses acute or chronic toxicity,
or both, (Check one response.)
El Acute
0 Chronic
❑ Both
❑Acute
❑ Chronic
❑ Both
❑Acute
❑ Chrome
❑ Both
EPA Form 35102A (Revised 3-19) Page 25

EPAlder9cabonl4mber NPDES Permit Number I Faabry Name OudaONumber Farm Appreved03105n9
11004003a143 NC0023121 Mount Airy WV✓rP 001 OMB No. 2040-00D4
TABLE E. EFFLUENT MONITORING O• WHOLE
The table provides response space for one whole effluent toxicity sample. Copy the table to report additional test results.
Test Number 24
Test Number_
Test Number—
TestType --
Indicate the type of test performed. (clrcrx one
msponse.j
El state
❑� Statio-renewal
❑ Flow -through
❑ Static
ElStatiwenewal
❑ Flow -through
❑ State
❑ Stafio-renewal
❑ Flow -through
Source of Dilution Water
Indicate the source of dilution water.
cneresponse.)
Laboratory water
❑ Receiving water
❑ Laboratory water
❑Receiving water
❑ Laboratory water
El Receiving water
If laboratory water, specify type.
synthetic
If receiving water, specify source.
Type of Dllutlon Water
Indicate the type of dilution water, f salt
water, specify 'natural" or type of artificial
sea salts or brine used.
Freshwater
❑Salt water (weary)
❑ Freshwater
salt water (speciryl
❑ Freshwater
❑Salt rater (spedry)
Percentage Effluent Used
Specify the percentage effluent used for all
concentrations in the test series. i0.s%, zlw, az%, saw, lo0w
Parameters Tested
Check the parameters tested.
0 pH
El Salinity
RTemperature
❑,-, /Ammonia
tM Dissolved oxygen
❑ pH
❑ Salinity
❑ Temperature
❑ Ammonia
El Dissolved oxygen
El pH
El Salinity
❑ Temperature
❑ Ammonia
❑ Dissahred oxygen
Acute Test Results
Percent survival in 100%effluent
%
%
%
LCw
95%confidence interval
%
%
%
Control percent survival
%
%
%
EPA Form 35102A (Reused 3-19) Page 26

EPA Ide,ftion Nunber
110D40038143
NPDES Permit Nmkr
NC0021121
FaoTdY Name
Mount AtryW P
OufM Number
001
Form Appmuad 0305119
OMB No. 204D-0004
TABLE E. EFFLUENT MONITORING e• WHOLE
The lable provides response space for one whole effluent toxicity sample. Copy the table to report additlonal test results.
Test Number 04
Test Number_
Test Number_
Acute Test Results Continued
Othef (descrbe)
Chronic Test Results
NOEC
100 %
%
%
IC25
%
%
%
Control percent survival
100 %
%
%
Other (demdbe)
Quality ContrellQuality Assurance
Is reference toxicant data available?
Yes
❑ No
❑ Yes
❑ No
❑ Yes
❑ No
Was reference toxicant test within
acceptable bounds?
M Yes
❑ No
❑ Yes
❑ No
❑ Yes
❑ No
What date was reference toxicant test run
MMIODNYYY?
04/09/2024
Other (describe)
EPA Farm 35102A (Revised 0191 Page 22

Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:7/20/2023
Facility: Mt.
NPDES # NC00 21121
Pipe #: 001 County.
Inc.
x l "a Y ct,r'-­3 Cr-ANon(p1/aosu.- i!q.-.ars SSG -
Signature of Operator in PAsponsible Charge/Email Address/Phone Number
x
of
Test Initiation Daterrime
% Eff. Repl.
[Co-nt-ro-11 Surviving #
Original #
WVoriginal (mg)
10.5 Surviving #
Original #
WVoriginal (mg)
21 Surviving #
Original #
WVoriginal (mg)
F-7-27 Surviving #
Original #
WVoriginal (mg)
F-8471 Surviving #
Original #
WVoriginal (mg)
100 Surviving #
Original #
WVoriginal (mg)
Nater Quality Data
Control
pH (SU) Ir iVFin
DO (mg/L) InitlFin
Temp (C) IniVFin
High Concentration
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (ri
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mg/L)
Tenp. at Receipt (°C)
MAUL ORIGINALTO: Water Sciences Section
Aquatic Toxicology Branch
Division of Water Resources
1621 Mail Service Center
Raleigh, N.C. 27699-1621
7/11/2023 3:35 PM
1 2 3 4
lCommentsl Single Inversion for Survival in tt
42% concentration.
Avg WVSurv. Control 0.627
10
10
10
10
10
10
10
10
0.498
1 0.747
1 0.561
10.700
10
9
1 10
10
10
10
10
10
0.798
0.668
0.653
0.855
10
1 9
10
i7
10
10
10
0
0.542
1 0.611
1 0.620
10.585
9
9
9
9
10
10
10
10
0.613
0.604
0.487
0.742
10
1 10
1 10
i10
10
10
10
10
0.672
1 0.660
1 0.716
10.575
10
10
10
10
10
10
10
10
0.643
0.605
1 0.652
0.708
% Survival 100.0
Avg Wt(mg) 0.627
% Survival 97.5
Avg Wt(mg) 0.744
% Survival 90.0
Avg Wl(mg) 0.590
% Survival 90.0
Avg Wt (mg) 0.612
% Survival 100.0
Avg Wt(mg) 0.656
% Survival 100.0
Avg Wt(mg) 0.652
Day
0 1 2 3 4 5 6
Test Organisms
r Cultured In -House
r Outside Supplier
Hatch Date: 7/10/23
Hatch Time: 4:00-S.00ptn
7.77
/ 7.52
17.66
/ 7.71
7.89
/ 7.73
7.71
/ 7.81
17.81
/ 7B0
7,91
/ 7.68
17.81
/ 7.60
8.08
/ 7.43
1 7.97
/ 7.62
6.67
/ 7.64
T82
/ 7.57
7.79
/ 7.70
7.90
/ 7.17
17.70
/ 7.23
24.4
/ 24.3
24.5
/ 24.2
24.2
/ 24.5
25.6
/ 24.5
24.3
/ 24.6
24.2
/ 24.4
24.3
/ 24.2
0 1 2 3 4 5 6
T36
/ 7.60
7.41
/ 7.78
7.57
/ 7.87
7.72
/ 8.10
7.92
/ 8.13
8.02
/ 7.94
7.70
/ 7.94
8.10/7.37
8.16
/7.68
7.90/7.41
7.80
/7.61
7.90
/7.65
7.77
/7.31
Z97
/7.10
25.0
/ 24.3
25.2
/ 24.6
25.5
/ 24.2
24.6
/ 24.1
24.9
/ 24.8
25.2
/ 24.6
24.8
/ 24.3
1 2 3
7/10/2023
7/12/2023
7/13/2023
24.0
24.0
24.0
78
114
110
48
76
86
390
502
483
<0.1
<0.1
<0.1
2.0
1.4
3.0
Dilution H2O Batch # M154
129 130
Hardness(mg/L) 44 46
Alkalinity (mg/L) 30 33
Conductivity (umhos/cm) 157 166
Survival
Growth Overall Result
Normal
1171
PI ChV >700
Hom. Var.
t i
NOEC
100
100
LOEC
>100
>too
ChV
>100
>100
Method
Steel's
Dunneft's
State
Survival
Growth
Conic.
Critical Calculated
Critical Calculated
10.5
10 16
2.41-2.0087
21
10 14
2.41 0.6352
42
10 10
10 18
2.41 0.2575
2.41-0.5022
84
100
10 18
2.41-0.4378

Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test
Facility: Mt. Airy NPDES # NC00 21121 Pipe #: 001
Label&rv: AAeritech. Inc. (Lab #NCO27) Commenl
x / %I ////i.Lis,J
of Operotpr in Re§Wsible Charge/Email
S gnatu of Laboratory Supervisor
MAIL ORIGINAL TO: Water Sciences Section
Aquatic Toxicology Branch
Division of Water Resources
1621 Mail Service Center
Raleigh, N.C. 27699-1621
Test Initiation Date/Time
% Eff. Repl.
Fc-o-ni-ro"11 Surviving #
Original #
WVodginal (mg)
10.5 Surviving #
Original #
Wt/original (mg)
21 Surviving #
Original #
Wtoriginal (mg)
F--4-27 Surviving #
Original #
Wt/original (mg)
® Surviving #
Original #
Wt/original (mg)
-10-07 Surviving #
Original #
WVorginal (mg)
Quality Data
Control
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Tamp (C) Init/Fin
High Concentration
pH (SU) InitlFin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mg/L)
Terrp. at Receipt IT)
10/3I4023 4:35 PM
1 2 3 4
Avg WUSurv. Control 0.886
9
9
10
10
10
10
1 10
110
0.968
0.610
1 0.884
10.908
9
1 9
1 10
1 10
10
10
10
10
0.640
1 0.749
1 0.701
1 0.818
10
10
10
10
10
10
10
10
0.674
1 0.853
1 0.857
1 0.888
10
10
10
9
10
10
10
10
0.892
1 0.782
1 0.807
1 0.744
10
1 10
9
i 9
10
10
101110
0.733
1 0.911
1 0.702
1 0.865
10
1 9
1 9
1 10
10
10
10
10
0.940
1 0.793
1 0.784
1 0.862
% Survival 55.0
Avg Wl(mg) 0.843
% Survival 95.0
Avg Wt(mg) 0.727
% Survival 100.0
Avg Wt(mg) 0.818
% Survival 97.5
Avg Wt(mg) 0.806
% Survival 95.0
Avg Wt(mg) 0.803
% SurvivalF 95.0
Avg Wt (mg) 0.845
Day
n 9 3 4 5 6
Date:10/12/2023
County:
Test Organisms
r Cultured In -House
r Outside Supplier
Hatch Date: 10/2/23
Hatch Time: 4:00-5:OOpm
7.98 / 7.82
7.97
1 7.82
7.76 1 7.70
8.05
/ 7.65
7.79
/ 7.50
7.81
/ 7.62
1 8.00
/ 7.68
7.71 / 7.22
7.74
/ 6.49
7.75 / 6.80
7.88
/ 7.55
7.80
1 6.82
7.77
/ 7.00
7.90
/ 6.38
24.3 / 25.5
25.0
/ 24.5
24.4 1 24.3
24.4
/ 25.6
24.5
/ 24.6
24.4
/ 2a.6
n 1 9 3 4 5 a
7.49 / 7.92
7,74
/ 7.83
17.19
/ 7.61
17,37
/ 7.80
18.92
/ 6.92
7.06
/ 7.15
7.11
/ 7.09
8.37 / 6.50
8.15
/ 7.09
1 7.94
/ 6.90
1 7.80
/ 7.60
1 7.69
/ 6.68
7.93
/ 7.24
8.04
/ 6.60
24.5 / 24.7
24.0
1 24.8
1 25.5
/ 25.6
124.2
/ 24 5
125.9
/ 24.9
25.5
/ 24.0
25.1
/ 24.2
1 2 3
1002023
10/4/2023
10/5/2023
24.0
24.0
24.0
90
100
98
70
46
14
427
502
465
<0.1
<0.1
<0.1
2.0
2.7
1.2
Dilution H2O Batch # 147 148 149
Hardness(mg/L) �44 46 42Alkalinity (rr 29 35Conductivity (umhos/cm) 164 166
Survival
Growth
Normal
rl
FI
Horn. Var.
rl
r1
NOEC
100
100
LOEC
>100
>100
ChV
>100
>100
Method
Steel's
Dunnett's
Overall Result
ChV F >100
Stets
Conc.
10.5
Survival
Critical Calculated
10 18
10 22
10 20
10 18
10 18
Growth
Critical Calculated
2.41 1.6353
2.41 0.3471
2.41 0.5135
2.41 0.5631
2.41-0.0319
21
42
84
100

Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:2/1/2024
Facility: Mt. Airy NPDES # NC00 21121 Pipe #: 001 County: Sorry
Labora>,PeMqjjtech, Inc. (Lab #NCO27) Comments
x r o., - C'rvtarrb �!1'lrwstia,y.-r.. o� - 33 G
Signature of Operator in Responsible Charge/Email A- dtl�PhNumber
Signature of Laboratory Supervisor
SLUL 0RHII,SAI.'10: Water Sciences Section
Aquatic "Toxicology Branch
Division ol-Water Resources
1621 Mail Service Center
Raleigh. N.(. 27699-1621
Test Initiation DatelTime 1/23/2024 4:00 PM
% EN. Repl.
Control Surviving #
Original #
Wt/original (mg)
F-10-57 Surviving #
Original #
WVoriginal (mg)
21 Surviving #
Original #
WVoriginal (mg)
42 Surviving #
Original #
Wt/original (mg)
84 Surviving #
Original #
Wt/original (mg)
100 Surviving #
Original #
Wt/original (mg)
Quality Data
Control
pH (SU) Init/Fin
DO (mg/L) InitlPin
Temp (C) IniUFin
High Concentration
pH (SU) IrnUFin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (mg/L)
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlonne(ni
Temp. at Receipt (°C)
1 2 3 a
Avg WUSurv. Controir 0.763
0
10
10
10
0
10
0
0
0.769
0.873
0.825
0.791
B
10
0
0
10
70
10
10
0.713
0.827
0.849
0.777
r
-�
0.679
1 0.827
0.761
0.834
% Survival 95.0
Avg Wt(mg) 0.724
% Survival 100.0
Avg Wt (mg) 0.815
• Survival 92.5
Avq Wt(mg) 0.739
% Survival 95.0
Avg Wt (mg) 0.792
% Survival 97.5
Test Organisms
Cultured In -House
Outside Supplier
Hatch Date 1/22/24
Hatch Time: 4.00-500pm
Avg Wt(mg) 0.775
10
9
1 10
1 9
% Survival 95.0
10
10
10
10
0,817
0.795
0.894
0.687
Avg Wt (mg) 0.798
Day
0
2
1
4 a
L75
r 7.73
8.15
r 7,67
16.46
/ 7.47
1 7.77
/ 7.69
17.81
1 7.61 17.77
r 7.64
1770
r 7.58
7.86
/ Z64
8.04
! 6.90
7.91
r 7.40
7,92
! 7.36
7.57
r 7.45
7.75
! 7.04
7.90
16.56
25.6
/ 25.5
25.3
r 25.7
24.8
2a.1
24.4
! 24.a
24.3
r 2a.5
24.4
r 24.4
1 24.0
/ 244
7.31
! 7.85
7.46
r 7.88
6.75
r 7.28
7.03
i 7.39
1 7.65
/ 7,68
1 7.49 r 7.62
7,38 ! 7.55
8.37
! 7.31
8.39
! 6.85
627
! 7.03
7.98
17.22
Z74
r 7.41
7.77 r 7.05
8.24 ! 6.42
24.6
/ 24.8
125.2
! 25.1
125.1
/ 25.0
1 25.9
r 25.0
25.3
1 24.8
25.5 ! 24.1
25,2 / 25.1
1 2 3
1/22/2024
1 /24/2024
1 /25/2024
24.0
24.0
24.0
80
78
76
61
29
57
532
394
316
<0.1
<0.1
<0.1
1.1
1.6
1.3
Dilution H2O Batch # R165
1 16 177
Hardness 46Alkalinity (mg/L) 30 32Conductivity (umhos/cm) 159 174
Survival
Growth
Normal
y=(
per(
Horn _ Var.
¢-
F
NOEC
100
100
LOEC
>100
>100
ChV
>100
>100
Method
Steel's
Cunned's
Overall Result
ChV >100
Slats
Cone.
10.5
Survival
Critical Calculated
10 22
10 17
10 19
10 20
10 18
Growth
Critical Calculated
2.41-2.0514
21
2.41-0.3438
42
2,41 -1.5329
84
2 41-1.1666
100
2,41-1.6851

Effluent Toxicity Report Form -Chronic Fathead Minnow Multi -Concentration Test Date:4/19/2024
Facility: Mt. Airy
Aaratorv: Medtech. Inc. (Lab #NCO27)
Of
Signature of Laboratory Supervisor
Test Initiation Date/rime
% EH. Rapt.
ConVol Surviving #
Original #
WVoriginal (mg)
10.5 Surviving #
Original #
Wt/original (mg)
21 Surviving #
Original #
WVoriginal (mg)
r--42-1 Surviving #
Original #
Wt/original (mg)
® Surviving #
Original #
WVoriginal (mg)
100 Surviving #
Original #
WVoriginal (mg)
iter Quality Data
Control
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) InitlFin
High Concentration
pH (SU) Init/Fin
DO (mg/L) Init/Fin
Temp (C) Init/Fin
Sample
Collection Start Date
Grab
Composite (Duration)
Hardness (rri
Alkalinity (mg/L)
Conductivity (umhos/cm)
Chlorine(mg/L)
Terrp. at Receipt IT)
NPDES # NC00 21121
Address/Phone Number
MAILORIGINALTO: Water Sciences Section
Aquatic Toxicology Branch
Division of Water Resources
1621 Nail Service Center
Raleigh. N.C. 27699-1621
Pipe*: 001 County:
4/9/2024 3:50 PM Avg WVSurv. Control 0.719
2 3 4
10
1 9
1 10
10
10
10
10
10
0.758
1 0.605
1 0.716
1 0.729
10
1 10
1 10
0
10
10
10
10
0.687
1 0.803
1 0.816
1 O.
10
10
10
10
10
10
10
10
0.718
0.776
1 0.765
0.848
0
1 10
10
1 10
0
10
10
10
0.790
1 0.761
1 0.705
1 0.798
9
10
1 9
10
10
10
10
10
0.809
0.789
0.677
0.731
% Survival 97.5
Avg Wt (mg) 0.702
% Survival 100.0
Avg Wt (mg) 0.770
% Survival 97.5
Avg Wt (mg) 0.661
% Survival 1 00.0
Avg Wt (mg) 0.777
% Survival 100.0
Avg Wt (mg) 0.764
% Survival 95.0
Avg Wt (mg) 0.752
Day
0 2 3 4 5 6
Test Organisms
r Cultured In -House
R Outside Supplier
Hatch Date: 4/8/24
Hatch Time. 4.00-5.00pm
/ 7.75
17.87
/ 7.89
7,96
/ 7.77
7.82
/ 7.80
7.98
/ 7.88
17.99
/ 7.80
8.00
/ 7,47
ji7.78
7.85
1 7.29
17.87
/ 7.19
17,70
/ 7.53
li 7.86
/ 7.70
7,97
1 7.80
7.87
/ 7,28
7.96
/ 6.32
25.5
1 24.7
124.5
1 24.9
124.7
/ 25.0
124.7
/ 24.6
24.1
/ 24.4
24.7
/ 24.4
24A
/ 25.4
0 1 2 3 4 5 8
7.10 / T72
7.71
/ 7.83
7.40
1
/ 7.87
7.72
/ 7.97
7.82
/ 7.97
7.89
/ 7.83
17.57 1 7.65
8.00 / 6.77
8.09
/ 6.76
8.35
1 7.35
ji 7.87
/ 7.63
1 7.91
1 7.59
7.94
/ 7.20
7.94 / 6.35
24.9 / 24.4
25A
/ 24.8
125.8
/ 25.2
125.0
/ 24.4
125.5
/ 24.9
24.2
/ 24.8
25.2 / 25.3
1 2 3
4/8/2024
4/110/2024
4/11/2024
24.0
24.0
24.0
94
88
80
67
73
73
438
421
408
<0.1
<0.1
<0.1
1.9
0.6
0.7
Dilution H2O Balch # Fl-921 193 194 44 42
Hardness (mg/L) 42 �12
44 42Alkalinity (mg/L) 30 30 31Conductivity (umhos/cm) 156 �404
i 166 160
Survival
Growth Overall Result
Normal
rl
j>I ChV 7100
Horn. Vac
rI
V,I
NOEC
100
100
LOEC
>100
>100
ChV
>100
>100
Method
Steel's
Dunnett's
Stats
Conc.
10.5
Survival
Critical Calculated
10 20
10 18
10 20
10 20
10 16
Growth
Critical Calculated
2.41-1.7660
2.41 1.0753
2A1-1.9485
2.41-1.6031
2.41-1.2903
21
42
94
100

a.
Test Species & last method number
Age at Initiation of test
(Dialed number
Dates sample collected
Duration
b.
Manual file
Generic Permit Renewal form Information
Chronic Fathead minnow info:
Testnumber. 1
Pbephales promelas 1000.0
<48 hours
7 days
Short-term Methods for Estimatin
the Claonic Toxicity of E f warts e
Receiving Waters to Fmshwater
Organisms
Edtion number and year of publication 4th eddon-2002
Page number 5111t5
C.
24-hourmmplocite yes
Grab
d.
After dechlodnation yes
a.
Sample was collected: Effluent
I.
Chronic tonicity yes
Acne Weary
9.
static
satio-recewal yes
flowthmugh
It.
laboratorywato, synthetic freshwater
Receiving wear
Fresh water
Yes
Salt to,
J.
For fish, this will be m
k
PH
yea
Salinity (only in saltwater tests)
Temperature
yes
ammoNa
Disolved oxygen
yes
I.
Acute (all is left
blank In. Saasv0a arty rum Chmnim)
Chronic
NOEC
(may be digerent far each test)
IJsted on results page
Chronic Ceriodaphnia dubia info:
Testnumbar. 1
Cedodaphnia outbid 1002.0
<24 hours
(will be dlgemel for each Wag
7 days
g Shart-fens Methods for Estimating
nd the Chronic Toxicity of EMuena and
Receiving Waters to Freshwater
Organisms
sign odilion-2002
141-189
Yes
yes
Effluent
yes
yes
Lake Brandt until January 2024
Yes
Acute Pimephales promelas info
Testnumber. 1
TGE5C - P/F Static Pimephales Promotes (Acute)
1-15 days
24 hours
Method for Measuring the Acute Texiaty
of Effluents and Receiving Waters
to Freshwater and Madre
Organisms
Sin edition -2002
yes
Yes
Effluent
Acute
Static
Maderdlaly Hand Synthetic Freshwater
Yes
ultiple dilutions listed an AT Form For cede pass fall, this will be the single dilution (IWC)listed on AT Form 90%
For Card Multi-dlution, whiO wit be the dilutions listed in the AT Form
yes yes
Yes yes
Yes yes
If last passed than NOEC 13 >I WC
90% if. the test is a pass. <90% it the test is a fall.

IC25 Ceave blank)
WA
Control percent survival
(Dated on AT Form
listed on AT Form
Listed on AT Farm
ONer(decribe)
Chronic Value goes here
pass or fail goes here
pass or be goes here
m.
Isreferenra toxifant data available?
yes
yes
yes
Was net tax wImIn bounds?
yes
yes
yes
Date of mf en, test?
(same date as test)
Y Udn 2 weeks of tese
Nettun 2 weeks of lase
I know It says (MWDD/YYYY) but 2 weeks is fine

This page intentionally left blank.

EPAldemkotion Nunnber NPDES Pemdl Nwnber FaculyNane FomAppmeeaua bnV
OMB No.2090-0094
110040038143 NC0021121 Mount Airy WWTP
TABLE F. INDUSTRIAL DISCHARGE INFORMATION
Response space Is provided for three SIUs. Copy the table to report information for additional SIUs.
SIU Di
SIU 02
Slu_
Name of SIU
ITW Texwipe
Prime xleen Commercial laundry
Mailing address (street or P.O. box)
645 west Pine Street
220 Frederick Street
City, state, and ZIP code
Mount Airy, NC 27030
Mount Airy,NC 27030
Description of all Industrial processes that affect
or contribute t0 the discharge.
ompany cloth wipes
Commercial uniform,
farthe medical, automotive, and electronic
forthe medical, aures utomotrileive,
foodservicndrysrhaspital,
and food service industry.
Industry.
List the principal products and raw materials that
cloth fibers, bleach
washing/drying uniforms, bed sheets,
affect or contribute to the SIU's discharge.
linens, table cloths, etc.
Detergents, bleach
Indicate the average dailyvolume of wastewater
139,232 gpd
28499 gpd
gpd
discharged by the SIU.
How much of the average daily volume is
139,232 gpd
28,499 gpd
gpd
attributable to process flow?
How much of the average daily volume is
o gpd
o gpd
gpd
attributable to non -process flow?
Is the SIU subject to local limits?
❑� Yes ❑ No
❑� Yes ❑ No
El Yes ❑ No
Is the SIU subject to categorical standards?
❑ Yes 0 No
❑ Yes 2 No
❑ Yes ❑ No
EPA Form 35104A (Revised 319) Page 29

EPAldenbfi ti nNwnber NPOES Perml[NwMer Facility Name Form Approved 031OM9
11004D038'143 NC0021121 Mount AiryW P OMB No. 204MM
INDUSTRIALTABLE F. DISCHARGE INFORMATION
Response space is provided for three SIUs. Copy the table to report information for additional SIUs.
SIU of
SIU 02
SIU_
Under what categodes and subcategories is the
SIU subject?
none
none
Has the POTW experienced problems (e.g.,
upsets, passdhmugh interferences) In the past4.5
❑ Yes [a No
❑ Yes © No
❑ Yes ❑ No
ears that are attributable to the SIU?
Ifyes, desaibe.
EPA Fmm 3510.2A(Revlmd 3.19) Page3o

INDUSTRIAL FLOW REPORT FOR TEXWIPE
INDUSTRIAL USER PERMIT #0001 2023
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
1
180185
114291
75482
46311
192745
121298
110972
186486
2
139182
144778
78971
72253
86129
167336
179063
3
89916
113664
98572
78637
97692
86854
59861
182799
129248
4
168703
170167
161464
64580
126679
136812
5
162732
187524
24079
159515
233369
88280
207717
206476
6
150954
140487
106275
107600
200526
179883
228116
168770
172582
203480
7
147420
102471
139531
187414
194316
206144
178174
181879
8
127818
102118
82034
141684
199621
177033
181051
198897
9
188623
130232
117005
114960
78878
106396
122700
148781
10
146135
132641
107915
93686
189199
108398
186543
223105
184199
11
153382
153437
172963
228505
114995
145441
179171
131090
12
179638
145155
102602
46488
193357
249287
129112
144343
13
173403
122268
69037
160491
207083
199091
211077
7194
128607
191002
14
134001
159866
67424
188872
159342
66233
200100
57891
148056
15
128134
105506
95674
158109
181076
208625
123439
105924
16
1 154732
131521
105100
97808
46500
197870
35614
134397
17
110685
122126
161373
113766
105252
86886
94032
215901
115275
18
95265
152516
65886
201670
117919
257464
153743
101361
19
117454
162358
79164
84826
144575
208060
166721
197516
20
156417
108552
196173
212448
201398
214015
187801
176181
184580
21
95419
168242
125531
169514
117648
277895
223522
145740
154895
22
140178
44722
109038
177983
122291
129915
119240
32455
23
141531
113146
6667
144899
123833
118783
152232
24
117191
110415
7043
80042
101730
88369
83671
183543
25
124294
85842
176349
137332
180250
158955
195207
26
108915
90550
33230
123022
147780
206040
192611
27
117546
99912
74250
81643
183279
121398
225588
200230
95167
136616
28
105218
199989
45032
63594
7304
270191
210161
216081
113575
29
122593
151944
190176
101496
150682
74318
30
118425
85126
91192
8936
247897
185408
190172
31
140528
51537
178324
95602
182395
183741
TOTAL
2916469 1
2413967
2363028
2297574
2377992
2785129
292617.9
1 3535865
I 3770617
I 3567335
I qQiZATT
2829761
AVE
138879
127051
102740
120925
108091
126597
146309
153733
188531
162152
146847
148935
MAX
188623
180185
199989
195173
189199
212448
233369
277895
257464
223105
216081
206476
MIN
89916
95419
6667
45032.
24079
8936
7304
59861
88280
7194
57891
32455
Days
21
19
23
19
22
22
20
23
20
22
20
19
&.Wd 134 z3z lied

INDUSTRIAL FLOW REPORT FOR PRIME KLEEN LAUNDRY
INDUSTRIAL USER PERMIT #0002 2023
JANUARY
FEBRUARY
MARCH
APRIL
MAY
JUNE
JULY
AUGUST
SEPTEMBER
OCTOBER
NOVEMBER
DECEMBER
1
29300
27700
27000
26600
12000
34700
37500
31300
37400
2
20900
30400
26600
31200
30400
34100
34200
34900
3
23400
28300
9600
29700
9100
35800
37000
34100
4
22800
15800
33300
29400
27700
36600
42800
5
21300
31500
21000
29900
28900
33000
34500
6
30400
7900
33600
30300
23600
29900
35100
33500
34300
7
26600
13900
29000
30400
15800
38400
37100
34600
8
30100
15000
24400
24500
29200
31300
36200
35600
9
19000
33300
18600
27500
20000
32800
35900
40000
10
26300
16400
31700
28500
18400
27600
37500
41000
11
26400
29600
30700
31600
29900
30500
30100
40700
12
25300
33700
1400
24200
27500
32500
35200
13
42700
5600
23100
23600
27600
27900
40400
50500
36100
14
28000
14300
26400
27200
22300
44600
34000
36000
15
21100
16400
35000
32600
25500
41500
36900
34300
16
27100
23100
12700
30300
27300
22200
32300
35200
17
30900
28700
32600
14000
28600
36500
36800
18
32800
32900
25000
21900
25800
44700
28400
42900
19
24900
28800
7600
27400
22100
47100
34500
33500
20
26200
24000
30000
27200
44500
36700
36900
35300
21
23600
15800
26200
34500
10200
40800
33200
35100
36700
22
26300
9600
25100
26100
22000
47900
34900
37400
23
25300
27900
900
25400
25400
25800
40300
15400
35600
24
25300
26600
7800
24900
24200
11800
27800
35100
25
26300
33700
26000
31300
31200
12900
34300
26
24400
31800
25100
27100
46200
35900
34300
27
9800
4700
28000
23100
30900
51900
31800
34000
34500
28
28200
2400
29600
29700
29600
47300
34600
38100
29
3400
29500
40900
44800
35400
34200
30
35100
3400
19300
20100
32000
46200
36900
31
32100
24700
16500
40160
33900
TOTAL
469600
462600
251400
441400
525000
480300
506300
671700
86820D
786500
764900
1 728400
AVE
26089
27212
12570
27688
27632
24015
24110
27988
37748
34196
36424
36420
MAX
35100
42700
28300
33700
35000
32600
34500
40900
51900
46200
50500
42900
MIN
19000
9800
900
9600
19300
1400
9100
10200
12900
15400
31300
33500
Days
18
17
20
16
19
20
21
24
23
23
21
20

Mercury Minimization Plan (MMP) Summary for
NPDES Permit Renewal —August 2024
The City of Mount Airy developed a MMP on January 29, 2015.
The following is a summary of activities since implementation:
• Various information was used to determine the potential
for users of the sewer system to contribute mercury.
• A list of system users, both domestic and non -domestic,
was developed and is updated as necessary.
• The list of users were surveyed and the City continues to
survey ten percent (10%) of these users annually.
• Substances containing mercury at the WWTP were
evaluated and replaced were practical.
• Spill control measures and personnel training have been
addressed in the City's Spill Prevention and Chemical
Hygiene Plans.
• New sources of non -domestic mercury are being surveyed
along with Industrial Waste Surveys as necessary.
• Educational information regarding sources of household
mercury, disposal practices, and community collection
points are posted on the City's website and is included
with a monthly water bill annually.
• The City has and continues to monitor influent and
effluent mercury concentrations quarterly as per its Long
Term Monitoring Plan (LTMP).

CITY OF MOUNT AIRY WWTP
P. O BOX 70
MOUNTAIRY, NC 27030
PHONE: [phone]
FAX [phone]
August 22, 2024
Mr. Gary Perlmutter
NCDEQ/DWR
NPDES Permitting Branch
1617 Mail Service Center
Raleigh, NC 27699-1617
Subject: Chemical Addendum for NDPES Permit Renewal NCO021121
Dear Mr. Perlmutter,
The City of Mount Airy doesn't expect its current industrial permitted community to
discharge any of the chemicals listed in the addendum.
Should you have any questions or need any additional information, please contact me at
[phone].
Sincerely,
C� 1*a0l-
Christopher S. Marion
W WTP Supervisor
City of Mount Airy

EPA ldentifinflon Number NPOES Number FadlitV Name Outfall Number
330040039143 NC0021121 Mount Alry WWTP 001
Method Number - Estimated Concentration (if
Pollutant (Required) CAS number if A Ilcable Reason Pollutant Believed Present in Discharge Known
None

CHECKLIST FOR POTW (MUNICIPAL) APPLICATION REQUIREMENTS
IF COMPLETING EPA FORM 2A SECTIONS, DO YOU NEED THE FOLLOWING?
POTW/MUNICIPAL TYPE
EPA FORM 2A?
SECTION 1 - Basic
SECTION 2 - Add'I
SECTION 3 -
SECTION 4-
SECTION 5-
SECTION 6-
Application
Application Information
Outfall
Industrial
Combined Sewer
Checklist and
Information for All
(design flow equal to or
Information
Dischargers and
Overflows
Certification
Applicants
greater than 0.1 MGD)
Hazardous Waste
Statement
Less than 0.1 MGD (minor)
rm 2A (Revised
Yes
Yes
Yes
'N
Yes
Greater than/equal to 0.1
MGD but less than 1.0 MGD
Yes
Yes
Yes
Yes
N
Yes (if needed)
Yes
-- without pretreatment
Greater than/ to 0.1
MGD but less than 1.0 MGD
Yes
Yes
Yes
Yes
Yes
Yes (if needed)
Yes
-- with pretreatment
1.0 MGD or Greater (major)
-- without pretreatment
Yes
Yes
Yes
Yes
Yes (if needed)
Yes
1.0 MGD or Greater (major)
-- with pretreatment
Yes
Yes
Yes
Yes
Yes
Yes (if needed)
Yes
'3 samples with seasonal variation (at least 4 months separation between samples)
'•4 samples with seasonal variation (for information on second species toxicity testing, call Aquatic Toxicology Unit at 919-743-8401)
"' As required by Session Law 2018-5, Senate Bill 99, Section 13.1(r)), every applicant shall submit documentation of any additional pollutants for which there are certified methods with the
permit application if their discharge is anticipated. These pollutants may be found in 40 CFR Part 136, which is incorporated by reference. If there are additional pollutants with certified methods
to be reported, please submit the Chemical Addendum to NPDES Application table with your application and, if applicable, list the selected certified analytical method used. If there are no
additional pollutants to report, this form is not required to be included with your application.
to: all
TABLE C - Effluent I TABLE E - Effluent
EXPIRATION DATE OF Parameters for Monitoring for Whole
PERMIT Selected POTWS Effluent Toxicity (2nd
(Priority Pollutants) species)"
and municipalities with 1 MGD or more of flow (MAJORS):

D7 COMPLETING EPA FORM 2A TABLES, DO YOU REED THE FOLLOWING?
TABLE A -
Effluent
Parameters for
All POTW's
TABLE B - Effluent
Parameters for All POTW's
with design flow equal to or
greater than 0.1 MGD
TABLE C - Effluent
Parameters for
Selected POTWS
(Priority Pollutants)
TABLE D - Additional
Pollutants as Required
by Permitting
Authority*
TABLE E - Effluent
Monitoring for Whole
Effluent Toxicity (2nd
species)"
TABLE F - Industrial
Discharge Information
(Pretreatment (SIU's))
Chemical
Addendum to
NPDES
Application *'*
Yes
Yes
Yes (if required)
Yes (if required)
-Nb
Yes (if needed)
No
Yes
Yes
--- - .. -o
Yes (if required)
Yes
No
7
Yes
Yes (if needed)
Yes
Yes
Yes
Yes (if required)
Yes (if needed)
Yes
Yes
Yes
Yea (if required)
Yes
,-
NO
Yes (if needed)
Yes Yes
Yes
Yes (if required)
Yes
Yes
Yes (if needed)