AQ_AM_20230629_BP_AnnPln_Final 2023-2024 Appendix B Mecklenburg County

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Air Quality Monitoring Group

2023-2024 Annual Monitoring Network
Plan - Mecklenburg County Air Quality

Mecklenburg County Air Quality
A Division of the Mecklenburg County
Land Use and Environmental Services Agency
2145 Suttle Avenue
Charlotte, NC, 28208
Phone [phone] • Fax [phone]
June 28, 2023

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CERTIFICATION
By the signatures below, Mecklenburg County Air Quality (MCAQ) certifies that the
information contained in the “2023-2024 Annual Monitoring Network Plan for Mecklenburg
County Air Quality” is complete and accurate, to the best of our knowledge, at the time of
submittal to USEPA Region 4. However, due to circumstances that may arise during the
sampling year, network information may change. A notification of change and a request for
approval will be submitted to USEPA Region 4 at that time.

Print Name: Danielle Jones Signature: Date:

Air Quality Monitoring Manager, MCAQ

Print Name: Leslie Rhodes Signature: Date:

Director, MCAQ
6/28/2023
6/28/2023

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2023- 2024 ANNUAL MONITORING NETWORK PLAN
MECKLENBURG COUNTY AIR QUALITY
Table of Contents

I. INTRODUCTION ........................................................................................................................9
National Ambient Air Quality Standards ..................................................................................10
II. STATION DESCRIPTION BACKGROUND INFORMATION AND DEFINITIONS .........12
1. Station Description................................................................................................................ 12
2. Date Established.................................................................................................................... 12
3. Station Approval Status ........................................................................................................ 12
4. Monitoring Objectives .......................................................................................................... 12
5. Monitoring Station Designations .......................................................................................... 13
6. Monitoring Methods ............................................................................................................. 14
(A) Particulate Matter 10 microns in size (PM10) .....................................................................14
(B) Particulate Matter 2.5 microns in size and coarse (PM2.5, PMC) ........................................15
(C) PM2.5 Speciation Sampling and Analysis ............................................................................15
(D) Sulfur Dioxide (SO2) ..........................................................................................................15
(E) Carbon Monoxide (CO) ......................................................................................................15
(F) Ozone (O3) ...........................................................................................................................16
(G) Nitrogen Dioxide (NO2) ......................................................................................................16
(H) Reactive Oxides of Nitrogen (NOy) ....................................................................................16
(I) Speciated Volatile Organic Compounds (VOCs) .................................................................16
(J) Carbonyls .............................................................................................................................16
(K) Air Toxics ...........................................................................................................................17
(L) Lead (Pb) .............................................................................................................................17
7. Quality Assurance Status ...................................................................................................... 17
8. Scale of Representativeness .................................................................................................. 18
9. Data Processing and Reporting ............................................................................................. 19
III. NETWORK SUMMARY ........................................................................................................20
1. Station Table - Criteria Pollutants, NCORE Parameters, and PAMS Monitored ................. 20
2. Site Map ................................................................................................................................ 21
3. Monitoring Methods ............................................................................................................. 22
4. Network Modifications, Waiver Requests, and MOA’s ....................................................... 25
(A) Monitoring Station Siting Modifications ...........................................................................25
(B) Instrument Operation Modification ....................................................................................26
(C) Waivers ..............................................................................................................................27
(D) Memorandum of Agreement ..............................................................................................27
(E) Plan for Making Photochemical Assessment Monitoring Station (PAMS) Measurements
...................................................................................................................................................27
(D) Special Purpose (Non-Regulatory) Monitoring Related to the Colonial Pipeline Spill .....28
IV. AIR MONITORING STATION DESCRIPTIONS ................................................................30
1. Garinger ................................................................................................................................ 30
(A) Garinger Station Table ........................................................................................................30
(B) Garinger Station Description and Statement of Purpose ....................................................32
(C) Garinger Aerial Photograph ................................................................................................36
(D) Garinger Station Photographs .............................................................................................37

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2. Remount ................................................................................................................................38
(A) Remount Station Table .......................................................................................................38
(B) Remount Station Description and Statement of Purpose ....................................................39
(C) Remount Aerial Photograph ................................................................................................40
(D) Remount Station Photographs ............................................................................................41
3. University Meadows ............................................................................................................. 42
(A) University Meadows Station Table .....................................................................................42
(B) University Meadows Station Description and Statement of Purpose .................................42
(C) University Meadows Aerial Photograph .............................................................................44
(D) University Meadows Station Photographs ..........................................................................45
4. Ramblewood Park ................................................................................................................. 46
(A) Ramblewood Park Station Table ........................................................................................ 46
(B) Ramblewood Park Station Description and Statement of Purpose .....................................46
(C) Ramblewood Park Aerial Photograph: ...............................................................................48
(D) Ramblewood Park Station Photographs .............................................................................49
5. Friendship Park ..................................................................................................................... 50
(A) Friendship Park Station Table ............................................................................................ 50
(B) Friendship Park Station Description and Statement of Purpose .........................................50
(C) Friendship Park Aerial Photograph: ....................................................................................52
(D) Friendship Park Station Photographs ..................................................................................53
6. Equipment Drive ................................................................................................................... 54
(A) Equipment Drive Station Table .......................................................................................... 54
(B) Equipment Drive Station Description and Statement of Purpose .......................................54
(C) Equipment Drive Aerial Photograph ...................................................................................55
(D) Equipment Drive Site Photographs .....................................................................................56
V. REFERENCES..........................................................................................................................58
VI. APPENDIX A ..........................................................................................................................59
Monitoring Equipment Replacement Tables ............................................................................ 59
VII. APPENDIX B.........................................................................................................................68
Memorandum of Agreement ..................................................................................................... 68
VIII. APPENDIX C .......................................................................................................................77
Site Review Forms Calendar Year 2023 ................................................................................... 77
IX. APPENDIX D ..........................................................................................................................98
PM2.5 Continuous Monitor Comparability Assessment .......................................................... 98

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................................................................................................................................................... 99
X. APPENDIX E .........................................................................................................................101
PAMS Parameter Codes - Auto-GC-FID Speciated VOCs .................................................... 101

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XI. APPENDIX F ........................................................................................................................104
Responses Public Comments on Annual Network Plan ......................................................... 104

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I. INTRODUCTION
The Mecklenburg County Air Quality (MCAQ) monitoring program, a division of the
Mecklenburg County Land Use and Environmental Services Agency (LUESA); provides air
quality monitoring services in Mecklenburg County, North Carolina. Mecklenburg County Air
Quality is a state “certified local air pollution program” whose purpose is to improve and
maintain ambient air quality and reduce exposure to unhealthy levels of air pollution.

MCAQ has operated an air quality monitoring program since the 1960’s. The air monitoring
services provided by the program measure concentrations of the criteria air pollutants (carbon
monoxide - CO, nitrogen dioxide - NO2, sulfur dioxide - SO2, particulate matter - PM, lead - Pb,
and ozone - O3) in accordance with USEPA regulatory requirements.

The Clean Air Act, which was last amended in 1990, requires EPA to set National Ambient Air
Quality Standards or NAAQS (40 CFR part 50) for pollutants considered harmful to public
health and the environment. The Clean Air Act established two types of national air quality
standards: 1) Primary standards set limits to protect public health, including the health of
"sensitive" populations such as asthmatics, children, and the elderly; and 2) Secondary standards
set limits to protect public welfare, including protection against decreased visibility, damage to
animals, crops, vegetation, and buildings.

The EPA Office of Air Quality Planning and Standards (OAQPS) has set National Ambient Air
Quality Standards (NAAQS) for six principal pollutants (criteria pollutants). The NAAQS are
listed in Table 1:

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National Ambient Air Quality Standards
Pollutant Primary/
Secondary
Averaging
Time Level Form
Carbon Monoxide
(CO)
primary 8 hours 9 ppm Not to be exceeded more than once per
year 1 hour 35 ppm
Lead (Pb)
primary
and
secondary
Rolling 3
month average 0.15 μg/m3 (1) Not to be exceeded
Nitrogen Dioxide
(NO2)
primary 1 hour 100 ppb
98th percentile of 1-hour daily
maximum concentrations, averaged
over 3 years
primary
and
secondary
1 year 53 ppb (2) Annual Mean
Ozone (O3)
primary
and
secondary
8 hours 0.070 ppm (3)
Annual fourth-highest daily maximum
8-hour concentration, averaged over 3
years
Particle
Pollution
(PM)
PM2.5
primary 1 year 12.0 μg/m3 annual mean, averaged over 3 years
secondary 1 year 15.0 μg/m3 annual mean, averaged over 3 years
primary
and
secondary
24 hours 35 μg/m3 98th percentile, averaged over 3 years
PM10
primary
and
secondary
24 hours 150 μg/m3 Not to be exceeded more than once per
year on average over 3 years
Sulfur Dioxide
(SO2)
primary 1 hour 75 ppb (4)
99th percentile of 1-hour daily
maximum concentrations, averaged
over 3 years
secondary 3 hours 0.5 ppm Not to be exceeded more than once per
year
(1) In areas designated nonattainment for the Pb standards prior to the promulgation of the current (2008) standards,
and for which implementation plans to attain or maintain the current (2008) standards have not been submitted and
approved, the previous standards (1.5 µg/m3 as a calendar quarter average) also remain in effect.
(2) The level of the annual NO2 standard is 0.053 ppm. It is shown here in terms of ppb for the purposes of clearer
comparison to the 1-hour standard level.
(3) Final rule signed October 1, 2015, and effective December 28, 2015. The previous (2008) O3 stan dards
additionally remain in effect in some areas. Revocation of the previous (2008) O3 standards and transitioning to the
current (2015) standards will be addressed in the implementation rule for the current standards.
(4) The previous SO2 standards (0.14 ppm 24-hour and 0.03 ppm annual) will additionally remain in effect in
certain areas: (1) any area for which it is not yet 1 year since the effective date of designation under the current
(2010) standards, and (2) any area for which an implementation plan providing for attainment of the current (2010)
standard has not been submitted and approved and which is designated nonattainment under the previous SO2
standards or is not meeting the requirements of a SIP call under the previous SO2 standards (40 CFR 50 .4(3)). A
SIP call is an EPA action requiring a state to resubmit all or part of its State Implementation Plan to demonstrate
attainment of the required NAAQS.
Table 1.

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The MCAQ air monitoring program operates a network of state and local air monitoring stations
(SLAMS) in Mecklenburg County. The current network configuration consists of five
monitoring stations that measure concentrations of criteria air pollutants, and the ongoing
implementation of an additional Near-Road NO2 monitoring station. The SLAMS network
operated by MCAQ includes monitoring for criteria pollutants, meteorological parameters,
NCORE multi-pollutant parameters, and speciation trends network (STN) monitoring.
Occasionally, special purpose monitoring (SPM) is conducted.

The annual monitoring network plan, as stated in 40 CFR Part 58.10(b)(1-13), Annual
Monitoring Network Plan and Periodic Network Assessment; must contain the following
information for each existing and proposed site:

(1) The AQS site identification number.
(2) The location, including street address and geographical coordinates.
(3) The sampling and analysis method(s) for each measured parameter.
(4) The operating schedules for each monitor.
(5) Any proposals to remove or move a monitoring station within a period of 18 months
following plan submittal.
(6) The monitoring objective and spatial scale of representativeness for each monitor as defined
in appendix D to this part.
(7) The identification of any sites that are suitable and sites that are not suitable for comparison
against the annual PM2.5 NAAQS as described in §58.30.
(8) The MSA, CBSA, CSA or other area represented by the monitor.
(9) The designation of any Pb monitors as either source-oriented or non-source-oriented
according to Appendix D to 40 CFR part 58.
(10) Any source-oriented monitors for which a waiver has been requested or granted by the EPA
Regional Administrator as allowed for under paragraph 4.5(a)(ii) of Appendix D to 40 CFR part
58.
(11) Any source-oriented or non-source-oriented site for which a waiver has been requested or
granted by the EPA Regional Administrator for the use of Pb-PM10 monitoring in lieu of Pb-TSP
monitoring as allowed for under paragraph 2.10 of Appendix C to 40 CFR part 58.
(12) The identification of required NO2 monitors as near-road, area-wide, or vulnerable and
susceptible population monitors in accordance with Appendix D, section 4.3 of this part.
(13) The identification of any PM2.5 FEMs and/or ARMs used in the monitoring agency's
network where the data are not of sufficient quality such that data are not to be compared to the
NAAQS. For required SLAMS where the agency identifies that the PM2.5 Class III FEM or
ARM does not produce data of sufficient quality for comparison to the NAAQS, the monitoring
agency must ensure that an operating FRM or filter-based FEM meeting the sample frequency
requirements described in §58.12 or other Class III PM2.5 FEM or ARM with data of sufficient
quality is operating and reporting data to meet the network design criteria described in Appendix
D to this part.

This report constitutes the Mecklenburg County Air Quality “annual monitoring network plan”
(ANP). The remaining sections of the plan are summarized below:

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II. Station Description Background Information and Definitions: This section provides an
overview and definition of “Station Description”, “Date Site Established”, “Station Approval
Status”, “Monitoring Objectives”, “Monitoring Station Designations”, “Monitoring Methods”,
“Quality Assurance Status”, “Scale or Representativeness”, and a “Data Processing and
Reporting” summarization.

III. Network Summary: This section presents an overview of the sites and monitors in
Mecklenburg County. It includes a listing of proposed changes to the current network.

IV. Air Monitoring Station Description: In this section each air monitoring station is described
in detail.
II. STATION DESCRIPTION BACKGROUND INFORMATION
AND DEFINITIONS
1. Station Description
Specific information is provided to show the location of the monitoring equipment
at the site, if the site is in a combined statistical area (CSA), Core-based Statistical Area (CBSA),
or Metropolitan Statistical Area (MSA), the AQS identification number, the GPS coordinates,
and evidence that the stations monitors and monitor probes conform to the requirements of
Appendices A, B, C, D, and E of 40 CFR 58, where applicable.
2. Date Established
The date when each existing monitoring station was established is shown in the description. For
those stations, which are proposed, an expected startup date is provided.
3. Station Approval Status
Each monitoring station in the existing network has been reviewed with the purpose of
determining whether it meets all design criteria for inclusion in the SLAMS network.
4. Monitoring Objectives
Per 40 CFR 58 Appendix D, Section 1.1: “The ambient air monitoring networks must be
designed to meet three basic monitoring objectives. These basic objectives are listed below. The
appearance of any one objective in the order of this list is not based upon a prioritized scheme.
Each objective is important and must be considered individually.

(a) Provide air pollution data to the general public in a timely manner. Data can be presented to
the public in a number of attractive ways including through air quality maps, newspapers,
internet sites, and as part of weather forecasts and public advisories.

(b) Support compliance with ambient air quality standards and emissions strategy development.
Data from FRM (Federal Reference Method), FEM (Federal Equivalent Method), and ARM
(Approved Regional Method) monitors for NAAQS pollutants will be used for comparing an
area’s air pollution levels against the NAAQS. Data from monitors of various types can be used
in the development of attainment and maintenance plans. SLAMS, and especially NCORE

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station data, will be used to evaluate the regional air quality models used in developing emission
strategies, and to track trends in air pollution abatement control measures' impact on improving
air quality. In monitoring locations near major air pollution sources, source-oriented monitoring
data can provide insight into how well industrial sources are controlling their pollutant
emissions.

(c) Support for air pollution research studies. Air pollution data from the NCORE network can
be used to supplement data collected by researchers working on health effects assessments and
atmospheric processes, or for monitoring methods development work.”
5. Monitoring Station Designations
Most stations described in the air quality surveillance network are designated as State and Local
Air Monitoring Stations (SLAMS). The SLAMS include the ambient air quality monitoring
sites and monitors that are required by 40 CFR 58 Appendix D and are needed for the monitoring
objectives of Appendix D, including NAAQS comparisons, but may serve other data purposes.
The SLAMS include National Core multipollutant monitoring stations (NCORE), photochemical
assessment monitoring stations (PAMS), Chemical Speciation Network (CSN) / Speciation
Trends Network stations (STN), and all other state or locally operated criteria pollutant monitors,
operated in accordance with 40 CFR 58, that have not been designated and approved by the
Regional Administrator as special purpose monitor (SPM) stations in an annual monitoring
network plan. The following are descriptions of the SLAMS (including NCORE, PAMS, and
STN) and SPM station designations.

(A) SLAMS: The SLAMS make up the ambient air quality monitoring sites that are primarily
needed for NAAQS comparisons but may serve other data purposes. SLAMS exclude special
purpose monitor (SPM) stations and include NCORE, PAMS, and all other state or locally
operated stations that have not been designated as SPM stations. These stations must meet
requirements that relate to four major areas: quality assurance, monitoring methodology,
sampling interval, and siting of instruments and instrument probes.

(B) SPM: Not all monitors and monitoring stations in the air quality surveillance network are
included in the SLAMS network. In order to allow the capability of providing monitoring for
various reasons such as: special studies, modeling verification and compliance status, and other
objectives; certain monitors are designated as Special Purpose Monitors (SPM). These monitors
are not committed to any one location or for any specified time period. They may be located as
separate monitoring stations or be included at SLAMS locations. Monitoring data may be
reported to AQS, provided that the monitors and stations conform to all requirements of the
SLAMS network. Specific regulations regarding SPM’s are contained in 40 CFR 58 §58.20.

(C) NCORE: The NCORE multipollutant stations are a subset of SLAMS. NCORE stations
measure multiple pollutants to provide support to integrated air quality management data needs.
NCORE stations include both neighborhood and urban scale measurements in a select number of
metropolitan areas and a limited number of rural locations.

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NCORE stations must measure, at a minimum, PM2.5 particle mass using continuous and
integrated/filter-based samplers, speciated PM2.5, PM10-2.5 particle mass, O3, SO2, CO, NO/NOY,
wind speed, wind direction, relative humidity, and ambient temperature.

(D) Speciation Trends Network (STN): Speciation Trends Network stations are those stations
designated to be part of the speciation trends network. These stations collect samples that are
analyzed to determine the chemical makeup of PM2.5. The STN is part of the chemical speciation
network (CSN) which encompasses the original STN monitoring sites as well as supplemental
speciation sites.

(E) Photochemical Assessment Monitoring Station (PAMS): These stations are dedicated to
obtaining more information about ozone and its precursors. PAMS stations collect and monitor
some or all of the following: speciated volatile organic compounds (VOCs), carbonyls, NO/NOy,
O3, CO, and meteorological data.
6. Monitoring Methods
Sampling and analytical procedures for criteria air pollutant monitoring performed in the MCAQ
ambient air monitoring network and used for NAAQS comparison are conducted in accordance
with applicable USEPA Designated Federal Reference Methods (FRM) or Federal Equivalent
Methods (FEM) unless otherwise noted. Analytical techniques for non-criteria air pollutant
monitoring (methods employed that are not USEPA Designated Federal Reference Methods
(FRM) or Federal Equivalent Methods (FEM)) are documented in the applicable MCAQ Quality
Assurance Project Plan (QAPP) and/or the applicable MCAQ Standard Operating Procedure
(SOP). Methods used by MCAQ for criteria pollutant monitoring and selected non-criteria
monitoring are listed below:
(A) Particulate Matter 10 microns in size (PM10)
PM10 samplers operated by MCAQ are operated as federal equivalent method (FEM) samplers
and are operated according to the requirements set forth in 40 CFR 50, 40 CFR 58, and 40 CFR
53. Listed below is the USEPA Designated Reference or Equivalent Method used in the MCAQ
monitoring network:

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Method Designation Number Method Code
Met One BAM 1020 (PM10)-STP EQPM-0798-122 122
Met One BAM 1020 (PM10)-LC EQPM-0798-122 122
(B) Particulate Matter 2.5 microns in size and coarse (PM2.5, PMC)
PM2.5 and PMc (coarse) samplers operated by MCAQ are either FRM or FEM samplers. Listed
below are the applicable USEPA Designated Reference or Equivalent Method used in the
MCAQ monitoring network:

Method Designation Number Method Code
R & P Partisol-Plus 2025 PM-2.5 Seq. RFPS-0498-118 145
Met One BAM 1020 (PM2.5) EQPM-0308-170 170
Met One BAM 1022 (PM2.5) EQPM-1013-209 209
Met One BAM 1020 (PM10-2.5) EQPM-0709-185 185
(C) PM2.5 Speciation Sampling and Analysis
In addition to operating PM2.5 samplers that determine only PM2.5 mass values, MCAQ operates
PM2.5 speciation samplers which collect samples that are analyzed to determine the chemical
composition of the PM2.5 fraction. Data collected using these methods cannot be compared to
the NAAQS. Listed below is the method used in the MCAQ monitoring network:

Method Designation Number Method Code
Met One SuperSASS NA 810
URG-3000N (Carbon Channel) NA Various
(D) Sulfur Dioxide (SO2)
Instruments used to continuously monitor sulfur dioxide levels in the atmosphere employ the
pulsed UV fluorescence method. Listed below is the USEPA Designated Reference or
Equivalent Method used in the MCAQ monitoring network:

Method Designation Number Method Code
Thermo Electron 43A, 43C-TLE, 43i , EQSA-0486-060 560
43i-TLE, 43iQ
(E) Carbon Monoxide (CO)
Continuous monitoring for carbon monoxide is performed using the non-dispersive
infrared (gas filter correlation) method. Listed below is the USEPA Designated Reference or
Equivalent Method used in the MCAQ monitoring network:

Method Designation Number Method Code
Thermo Electron or Thermo RFCA-0981-054 554
Environmental Instruments 48, 48C, 48i,
48i-TLE, 48iQ

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(F) Ozone (O3)
Ozone is monitored using the UV photometry method. Listed below is the USEPA Designated
Reference or Equivalent Method used in the MCAQ monitoring network:

Method Designation Number Method Code
Thermo Electron or Thermo EQOA-0880-047 047
Environmental Instruments 49, 49C, 49i
(G) Nitrogen Dioxide (NO2)
The methods used to monitor the nitrogen dioxide level in ambient air are photolytic-
chemiluminescence and Cavity Attenuated Phase Shift (CAPS). Listed below are the USEPA
Designated Reference or Equivalent Methods used in the MCAQ monitoring network:

Method Designation Number Method Code
Teledyne API, T200UP EQNA-0512-200 200
Teledyne API, T200U RFNA-1194-099 599
Teledyne API, N500 EQNA-0320-256 256
(H) Reactive Oxides of Nitrogen (NOy)
The chemiluminescence method is used to monitor the reactive oxides of nitrogen levels in
ambient air. Listed below is the instrumentation used in the MCAQ monitoring network:

Method Designation Number Method Code
Thermo Environmental Instr. 42C-Y, NA 674
42i-Y
Teledyne API T200U NO/NOy NA 699

(I) Speciated Volatile Organic Compounds (VOCs)
The auto-gas chromatograph (auto-GC) flame ionization detection (FID) method is used to
monitor speciated volatile organic compounds in ambient air. Listed below is the instrumentation
used in the MCAQ monitoring network:

Method Designation Number Method Code
Agilent Technologies 7890B NA 228
(J) Carbonyls
Carbonyl monitoring is performed using the high performance liquid chromatography (HPLC)
method. Listed below is the instrumentation used in the MCAQ monitoring network:

Method Designation Number Method Code
ATEC 8000 Carbonyl Sampler Compendium Method TO-11A 202

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(K) Air Toxics
Air toxics sampling in Mecklenburg County is operated using equipment maintained by the
North Carolina Division of Air Quality. Listed below is the method used in the MCAQ
monitoring network:
Method Designation Number Method Code
Compendium Method for Toxic Organics Compendium Method TO-15 150
(L) Lead (Pb)
Lead (Pb) monitoring is not currently being conducted and is not currently required per 40 CFR
58 Appendix D §4.5. The most recent Pb monitoring was conducted from January 1, 2012
through April 30, 2016. Pb monitoring at the Garinger High School NCORE monitoring station
(37-119-0041) was discontinued on April 30, 2016 in accordance with revisions to NCORE
design criteria per 40 CFR 58, Appendix D(3). Concentrations of Pb measured at the station
were well below the NAAQS (0.15 g/m3). The maximum rolling three (3) month average for
the period January 1, 2012 through April 30, 2016 was 0.003 g/m3, approximately 2% of the
NAAQS.

The Pb-PM10 low volume method was used for monitoring lead in the MCAQ monitoring
network for the period from January 1, 2012 through April 30, 2016. Analysis for lead in PM10
collected on the filters was conducted in accordance with 40 CFR 50, Appendix Q. Listed below
is the method used in the MCAQ monitoring network during the period:

Method Designation Number Method Code
R & P Partisol-Plus 2025 PM-10 Seq. RFPS-1298-127 811
7. Quality Assurance Status
MCAQ operates according to EPA approved Quality Assurance Project Plans (QAPP) and
Standard Operating Procedures (SOP). The MCAQ QAPP for criteria pollutants (including
NCore NOy and near-road NO2) was approved by US EPA on October 19, 2022. The MCAQ
PAMS QAPP was approved by US EPA on February 15, 2021. The MCAQ Quality
Management Plan (QMP) was approved by US EPA on November 17, 2022.

MCAQ has an extensive quality assurance program to ensure that all air monitoring data
collected meets established criteria for precision and bias. Staff members perform independent
audits of instrumentation on a regularly scheduled basis to ensure that each instrument is
calibrated and operating properly. Data validation is performed monthly to ensure data reported
by each instrument is recorded accurately in the air quality monitoring database.

Air Toxics monitoring in Mecklenburg County is operated in conjunction with NCDAQ and
according to NCDAQ Urban Air Toxics’ (UAT) QAPP (Effective date: 12/21/2022) .

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8. Scale of Representativeness
Each station in the monitoring network must be described in terms of the physical dimensions of
the air parcel nearest the monitoring station throughout which actual pollutant concentrations are
reasonably similar. Area dimensions or scales of representativeness used in the network
description are:

(a) Microscale - defines the concentration in air volumes associated with area dimensions
ranging from several meters up to about 100 meters.

(b) Middle scale - defines the concentration typical of areas up to several city blocks in size with
dimensions ranging from about 100 meters to 0.5 kilometers.

(c) Neighborhood scale – defines concentrations within an extended area of a city that has
relatively uniform land use with dimensions ranging from about 0.5 to 4.0 kilometers.

(d) Urban scale - defines an overall citywide condition with dimensions on the order of 4 to 50
kilometers.

(e) Regional Scale - defines air quality levels over areas having dimensions of 50 to hundreds of
kilometers.

Closely associated with the area around the monitoring station where pollutant concentrations are
reasonably similar are the basic monitoring exposures of the station. There are six basic
exposures:

(a) Stations located to determine the highest concentrations expected to occur in the area covered
by the network.

(b) Stations located to determine representative concentrations in areas of high population
density.

(c) Stations located to determine the impact on ambient pollution levels of significant sources or
source categories.

(d) Stations located to determine general background concentration levels.

(e) Stations located to determine the extent of regional pollutant transport among populated
areas; and in support of secondary standards.

(f) Stations located to measure air pollution impacts on visibility, vegetation damage, or other
welfare-based impacts.

The design intent in siting stations is to correctly match the area dimensions represented by the
sample of monitored air with the area dimensions most appropriate for the monitoring objective
of the station. The following relationship of the six basic objectives and the scales of
representativeness are appropriate when siting monitoring stations:

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Site Type Appropriate Siting Scales
1. Highest concentration..... Micro, middle, neighborhood
(sometimes urban or regional
for secondarily formed
pollutants).
2. Population oriented....... Neighborhood, urban.
3. Source impact............. Micro, middle, neighborhood.
4. General/background & regional
transport...........
Urban, regional.
5. Welfare-related impacts... Urban, regional.
Table 2.
9. Data Processing and Reporting
MCAQ ambient air quality monitoring data are stored in the Agilaire AirVision SQL database
located at the Valerie Woodard Center, 3205 Freedom Drive, Charlotte, North Carolina. The
database is maintained by the Mecklenburg County Information Technology Services
department.

Monthly data validation processes are conducted by MCAQ air monitoring specialist and senior
air monitoring specialists as data is collected. After monthly data validation procedures are
successfully completed; data are transmitted to the US EPA’s national Air Quality System
(AQS) database. The AQS database is maintained by US EPA as the official repository of the
fully quality assured ambient air quality dataset. Data submitted to the AQS database are
certified by the air monitoring program manager by May 1st of each year in accordance with 40
CFR 58 §58.15.

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III. NETWORK SUMMARY
1. Station Table - Criteria Pollutants, NCORE Parameters, and PAMS
Monitored
EPA AQS ID
Station Name
CO NO2 O3 PM2.5
FRM

PM2.5
Cont1
FEM
PM10
Cont2
SO2 PM10-
2.5
Cont3
NOy Speciate
d VOCs
Carbonyls
37-119-0041
Garinger
(NCORE/
PAMS)
X X
Area
-
wide
X X4 X X X X X X X
37-119-0045
Remount
X X
Near
-
road
X5 X
37-119-0046
University
Meadows
X
37-119-0047
PM10
Ramblewood
Park
X
37-119-0048
PM2.5
Friendship
Park
X
37-119-0050
Equipment
Dr6
X
Near
-
road

1) PM2.5 Continuous (BAM 1020/1022).
2) PM10 Cont: PM10 Continuous.
3) PM10-2.5 Cont: PM10-2,5 Continuous.
4) NCORE Required 1 in 3 day filter-based sampling (FRM) and collocation for BAM 1020 primary.
5) Collocated 1 in 12 day filter-based FRM collocation for BAM 1022 primary.
6) Proposed 2nd-Near-Road NO2 monitoring site
Table 3.

21
2. Site Map
AIR QUALITY MONITORING STATIONS
MECKLENBURG COUNTY, NC

Figure 1.

22

3. Monitoring Methods
Site Parameter Instrument /
Method
Meth.
Code1
Param.
Code2
POC MT/MNC3
37-119-0041 SO2 Pulsed UV
Fluorescent
560 42401 2 SLAMS
NCORE
37-119-0041 CO Gas Filter
Correlation
554 42101 4 SLAMS
NCORE
37-119-0041 NO- NO2-NOx
Area-wide
Chemi-
luminescence
599 42601,
42602,
42603
1 SLAMS
NCORE
37-119-0041 NO- NO2-NOx
Area-wide
CAPS 256 42601,
42602,
42603
1 SLAMS
PAMS
37-119-0041 NO-Dif-NOy Chemi-
luminescence
674
699
42601,
42612,
42600
2 SLAMS
NCORE
PAMS
37-119-0041 PM10-2.5
Coarse
Met One BAM
1020 System
(LC)
185 86101 4 SLAMS
NCORE
37-119-0041 PM10 Met One BAM
1020 (LC)
122 85101 4 SLAMS
37-119-0041 PM10 Met One BAM
1020 (STP)
122 81102 4 SLAMS
37-119-0041 PM2.5 Met One BAM
1020
170 88101 3 SLAMS
37-119-0041 Ozone UV Photometric 047 44201 1 SLAMS
NCORE
PAMS
37-119-0041 PM2.5 FRM 145 88101 1 SLAMS
NCORE
37-119-0041 PM2.5 STN-Met
One/URG
810 Multiple 5 CSN
NCORE
37-119-0041 Speciated
VOCs4
Auto-GC-FID 228 Multiple4 6 SLAMS
NCORE
PAMS
37-119-0041 Carbonyls –
Formaldehyde
Acetaldehyde
HPLC 202 43502
43503
4 SLAMS
NCORE
PAMS

37-119-0041 Mixing Layer
Height
Vaisala 011 61301 1 SLAMS
PAMS

23
Site Parameter Instrument /
Method
Meth.
Code1
Param.
Code2
POC MT/MNC3
37-119-0041 Barometric
Pressure
R. M. Young 011 64101 1 SLAMS
PAMS
37-119-0041 Outdoor
Temperature
R. M. Young 020 62101 1 SLAMS
NCORE
PAMS
37-119-0041 Precipitation R. M. Young 011 65102 1 SLAMS
PAMS
37-119-0041 Relative
Humidity
Met One 012 62201 1 SLAMS
NCORE
PAMS
37-119-0041 Solar Radiation Matrix 011 63301 1 SLAMS
PAMS
37-119-0041 Wind Direction-
Resultant
R. M. Young 068 61104 1 SLAMS
NCORE
PAMS
37-119-0041 Wind Speed-
Resultant
R. M. Young 068 61103 1 SLAMS
NCORE
PAMS
37-119-0041 Wind Direction-
Scalar
R. M. Young 068 61102 1 SLAMS

37-119-0041 Wind Speed-
Scalar
R. M. Young 068 61101 1 SLAMS

37-119-0041 UV Radiation Kipp & Zonen 011 63302 1 SLAMS
PAMS
37-119-0045 NO- NO2-NOx
Near-road
FEM 200 42601,
42602,
42603
1 SLAMS
37-119-0045 NO- NO2-NOx
Near-road
CAPS 256 42601,
42602,
42603
1 SLAMS
37-119-0045 CO Gas Filter
Correlation
554 42101 1 SLAMS
37-119-0045 PM2.5 Met One BAM
1022
209 88101 3 SLAMS
37-119-0045 PM2.5 FRM 145 88101 1 SLAMS
37-119-0045 Relative
Humidity
Met One 012 62201 1 SLAMS
37-119-0045 Outdoor
Temperature
R. M. Young 020 62101 1 SLAMS
37-119-0045 Wind Direction-
Resultant
R. M. Young 068 61104 1 SLAMS
37-119-0045 Wind Speed-
Resultant
R. M. Young 068 61103 1 SLAMS

24
Site Parameter Instrument /
Method
Meth.
Code1
Param.
Code2
POC MT/MNC3
37-119-0045 Wind Direction-
Scalar
R. M. Young 068 61102 1 SLAMS
37-119-0045 Wind Speed-
Scalar
R. M. Young 068 61101 1 SLAMS
37-119-0046 Ozone UV Photometric 047 44201 1 SLAMS
37-119-0047 PM10 Met One BAM
1020 (STP)
122 81102 4 SLAMS
37-119-0048 PM2.5 Met One BAM
1022
209 88101 3 SLAMS
37-119-0049 NO- NO2-NOx
Near-road
CAPS 256 42601,
42602,
42603
1 SLAMS
Table 4.
1- Meth. Num. = Method Code
2- Param. Num. = Parameter Code
3- MT = Monitor Type: SLAMS – State and Local Air Monitoring Station, SPM – Special Purpose, NON – Non-
regulatory. MNC = Monitor Network Code: NCORE – National Core, CSN – Chemical Speciation Network, PAMS
– Photochemical Assessment Monitoring Station
4 – See parameter codes for speciated VOCs in Appendix E

25
4. Network Modifications, Waiver Requests, and MOA’s
(A) Monitoring Station Siting Modifications

1. Nitrogen Dioxide (NO2) Monitoring – MCAQ currently operates two nitrogen dioxide
monitoring stations. An area-wide NO2 monitoring station is operated at the Garinger High
School location (37-119-0041) and a near-road NO2 station is operated at the Remount location
(37-119-0045).

40 CFR 58 Appendix D, §4.3.2(a) requires implementation of an additional near-road NO2
monitoring station in any CBSA with a population of 2,500,000 persons or more. The July 1,
2019 population estimate for the Charlotte-Concord-Gastonia, NC-SC CBSA was greater than
2.5 million people. The Charlotte-Gastonia-Concord, NC-SC CBSA population estimate for July
1, 2019 is 2,636,883.

In consultation with U.S. EPA Region 4, MCAQ conducted a search for suitable near-road sites
in accordance siting criteria detailed in the Near-Road NO2 Monitoring Technical Assistance
Document (“TAD”). Discussions with U.S. EPA monitoring staff resulted in the determination
of the optimal location for the establishment of an additional near-road NO2 station on
Equipment Drive in Charlotte, NC. This proposed site is located adjacent to I-85, between exits
40 and 41. This location was identified as the top priority from a list of proposed locations based
on safety, ease of access, and limited site prep, in addition to the site meeting near-road NO2
siting requirements.

MCAQ prepared a Notification of Change – Addendum to the 2021-2022 Annual Network Plan
for Mecklenburg County Air Quality (“MCAQ-Plan”) site to incorporate details about the
additional near-road NO2 monitoring station at Equipment Drive, as required by 40 CFR 58
Appendix D, §4.3.2(a) and referenced in Section 4(a) “Monitoring Station Siting Modifications”
of the annual network plan. The addendum was posted for public notice and comment on the
MCAQ web site for a period of 30 days beginning on March 22, 2022 and ending on April 21,
2022. No comments were received. MCAQ submitted the addendum and a site proposal to U.S.
EPA on May 13, 2022, for final approval to establish the Equipment Drive station (proposed new
AQS ID: 37-119-0050) in accordance with the “Notification of Change – Addendum to the
MCAQ – Plan”.

MCAQ secured Armstrong Glenn to provide engineering and design services for the site. Site
drawings were drafted, reviewed, and revised to meet site specifications and NC Department of
Transportation (NCDOT) requirements. A Non-Utility Encroachment Permit has been obtained
from NCDOT, and MCAQ’s project management team for the Equipment Drive site met with
Duke Energy at the site to finalize details for a meter service request and to discuss specification
requirements for the utility encroachment agreement application. Additionally, a fee proposal
has been obtained for electrical engineering design services and coordination to identify
contractors to complete the site work has begun. MCAQ has also procured and began and/or
completed acceptance testing of the following monitoring equipment for the site:
• Teledyne N500 CAPS NO2 analyzer
• Teledyne T701H Zero Air System

26
• Teledyne T700 Dynamic Gas Calibrator
• ShelterOne Enclosure

MCAQ will continue preparing to install and operate the additional near-road NO2 station in the
MCAQ monitoring network as funding and personnel resources allow, with the goal of
implementation on or before January 1, 2024. This date was extended to account for
• Limited/slow response to site development requests for proposals.
• Planning delays due to COVID-19.
• Necessary network plan addendum revisions and public comment opportunity.
• Staffing shortages on the real estate team.
• Delayed response time for electrical utility work order requests.

(B) Instrument Operation Modification
Except for the Photochemical Assessment Monitoring and 2nd Near-Road NO2 implementation
(see sections 4(A) and (E)), no startups, shutdowns, or other major “Instrumentation Operation
Modifications” are planned at the currently operating monitoring stations in the MCAQ
monitoring network for 2023-2024.

27
(C) Waivers
MCAQ is not requesting waivers in the 2023-2024 Monitoring Plan.

(D) Memorandum of Agreement
A Memorandum of Agreement (MOA) dated July 1, 2016 was established forming the Charlotte-
Concord-Gastonia Metropolitan Statistical Area (MSA) Criteria Pollutant Air Quality
Monitoring Agreement among North Carolina Division of Air Quality (NCDAQ), South
Carolina Division of Health and Environmental Control (SCDHEC), and Mecklenburg County
Air Quality (MCAQ). The MOA was established to collectively meet the US EPA minimum
monitoring requirements for criteria pollutant monitoring deemed necessary to meet the needs of
the MSA as determined by all parties.

MCAQ is submitting the MOA as an attachment to the monitoring plan to provide notification to
US EPA of the purpose, agency roles and responsibilities, and limitations of the MOA. A copy
of the agreement is attached as Appendix B to this plan.

(E) Plan for Making Photochemical Assessment Monitoring Station (PAMS)
Measurements
MCAQ is participating in the PAMS implementation process that is being directed by USEPA
and associated USEPA vendors (currently USEPA and Battelle, collectively - EPA). On
December 20, 2019, EPA finalized a revision to the start date for PAMS. The revision provides
state and local agencies an additional two years from the original implementation date of June 1,
2019, to implement the PAMS program requirements.

MCAQ began measuring the following parameters on June 1, 2021, and will be measuring these
parameters during the 2023 PAMS season (June 1st – August 31st):
• Auto-GC speciated VOCs
• Ozone
• NO/NOy
• Mixing Layer Height
• Ambient Temperature
• Relative Humidity
• Barometric Pressure
• Wind Speed
• Wind Direction
• Solar Radiation
• Precipitation

Due to vendor delays, supply chain interruptions, warranty-covered repairs, and staffing
shortages, MCAQ’s implementation of the following parameters was delayed:
• True NO2
• UV radiation

MCAQ will begin measuring True NO2 and UV radiation by June 1, 2023.

Additionally, MCAQ has ordered a carbonyls sampler and intends to be measuring PAMS-
required TO-11A carbonyls parameters (formaldehyde and acetaldehyde) by mid-summer 2023

28
(D) Special Purpose (Non-Regulatory) Monitoring Related to the Colonial Pipeline
Spill

In April 2021, MCAQ and NCDAQ installed an air toxics sampler on-site to evaluate specific
volatile air pollutants during clean-up efforts related to the Colonial Pipeline Spill in
Huntersville, NC. This special purpose monitor (SPM) was established as the Oehler Air
Monitoring Station (AQS ID: 37-119-0049) to screen for specific air toxics and help inform
decisions about the need for long-term monitoring. Sampling at the Oehler SPM was paused by
NCDAQ on February 5, 2023, due to staffing shortages.

Oehler SPM Site Map

Figure 2.
Oehler SPM Description

29
AQS Site ID: 37-119-0049
Site Name: Oehler
Street Address: 14108 Huntersville-Concord Rd.
City: Huntersville
Latitude: N35.413342˚
Longitude: W80.805735˚
MSA: Charlotte-Gastonia-Concord, NC-SC (#16740)
Monitor Type: Special Purpose (Non-regulatory)
Operating Schedule: 24-hour, midnight to midnight, 1-in-6 day
Monitoring Objective: Public information/Source-oriented
Statement of Purpose: Screen for volatile air pollutants at pipeline spill site,
Scale: Microscale
Suitable for NAAQS
Comparison:
Not applicable
SPM Meets Requirements of
Part 58, Appendices A, D, and
E:
No
Date Established: April 4, 2021 Date Terminated: N/A; Paused
2/5/2023
Proposal to move or change: N/A
Table 5.

A Xonteck 911 sampler collects 24-hour composite air sample every 6 days in stainless steel 6-
liter pressurized canisters supplied by NCDAQ. NCDAQ maintains the sampler. MCAQ
operates the sampler, retrieves sample cannisters, and returns the sample cannisters to NCDAQ’s
lab. Samples are analyzed by the NCDAQ lab for the suite air toxics compounds using the
Compendium Method for Toxic Organics 15 (TO-15). The list of compounds can be found in
Table 7 of this document.

The Oehler SPM is not suitable for NAAQS comparison, as there are not any NAAQS for the
suite of air toxics compounds screened for at the Oehler SPM. However, there are exposure
guidelines for many of the compounds established by the Centers for Disease Control and
Prevention’s (CDC) Agency for Toxic Substances and Disease Registry (ATSDR) and National
Institute of Occupational Safety and Health (NIOSH) to which the monitoring data can be
compared. To date, data collected and analyzed by the NCDAQ have shown concentrations
below the CDC and NIOSH guidelines. Additional information about the Oehler SPM air
monitoring can be found at https://deq.nc.gov/about/divisions/waste-management/underground-
storage-tanks-section/colonial-pipeline-spill-information-huntersville-nc#air-monitoring.

30
IV. AIR MONITORING STATION DESCRIPTIONS
1. Garinger
(A) Garinger Station Table
Station Name: Garinger
AQS Station Identification Number: 37-119-0041
Location: 1130 Eastway Drive
Charlotte, NC 28205
Latitude: N35.240100º Datum: WGS84
Longitude: W80.785683º
Elevation: 232 meters
Parameter Method Method
Code
Probe
Height (m)
Sampling
Schedule
Ozone UV Photometry 47 4.3 Continuous
PM2.5 FRM Gravimetric 145 5.0 1 in 3 day
PM2.5 Met One, Speciation 810 4.8 1 in 3 day
PM2.5 URG-3000n, Carbon
Speciation
Various 5.0 1 in 3 day
PM2.5 BAM 1020 170 5.2 Continuous
PM10 (STP) BAM 1020 122 5.1 Continuous
PM10 (LC) BAM 1020 122 5.1 Continuous
PM10-2.5 BAM 1020 Coarse 185 5.1 Continuous
NO2 Chemiluminescence 599 4.2 Continuous
NO2 CAPS 256 4.2 Continuous
CO NDIR, GFC 554 4.2 Continuous
SO2 Pre-cursor
Gas
UV Pulsed
Fluorescence
560 4.2 Continuous
NOy Pre-cursor
Gas
Chemiluminescence 674
699
7.0 Continuous
Speciated
VOCs
Auto-GC-FID 228 4.2 Continuous
from June 1-
August 31

Carbonyls
Formaldehyde
Acetaldehyde
HPLC 202 4.2 1 in 3 day
Wind Speed R. M. Young 68 10 Continuous
Wind Direction R. M. Young 68 10 Continuous

31
Pressure R. M. Young 11 2 Continuous
Outdoor
Temperature
R. M. Young 20 4.9 Continuous
Solar Radiation Matrix 11 3.9 Continuous
UV Radiation Kipp & Zonen 11 3.9 Continuous
Precipitation R. M. Young 11 4.2 Continuous
Relative Humidity Met One 12 4.9 Continuous
Mixing Layer Height Vaisala 11 NA Continuous
Parameter Date Established Date Terminated
Ozone March 3, 2000 NA
PM2.5 FRM July 29, 1999 NA
PM2.5 Speciation (Met One) January 13, 2001 NA
PM2.5 Speciation (URG) April 1, 2009 NA
PM2.5 BAM 1020 March 6, 2017 NA
PM10 BAM 1020 March 6, 2017 NA
PM10-2.5 BAM Coarse March 6, 2017 NA
NO2 November 12, 1999 NA
CO November 11, 1999 NA
SO2 Precursor Gas January 1, 2006 NA
CO Precursor Gas January 1, 2006 NA
NOy Precursor Gas May 4, 2007 NA
Speciated VOCs June 1, 2021 NA
Carbonyls July 1, 2023 (approx..)
Meteorological Parameters January 1, 2003 (latest) NA
Nearest Road: Shamrock Drive Distance to Road: 298 meters
AADT:1 11,000 Year of Count: 2021
MSA: Charlotte-Gastonia-Concord, NC-SC Metropolitan
Statistical Area2
MSA #: 16740
2022 Population
(within 1 mile of property)
Projected 2024 Population
(within 1 mile of property)
13,101 15,415
1Annual Average Daily Traffic (AADT) Data obtained from: NCDOT Annual Average Daily Traffic (AADT)
Mapping Application (arcgis.com).
2 https://www.huduser.gov/portal/datasets/geotool/summary.odn

Table 6.

32
(B) Garinger Station Description and Statement of Purpose
The Garinger High School station is an NCORE multi-pollutant station. The monitoring station
is located at 1130 Eastway Drive. The station is located in a grassy area in the southwest corner
of the Garinger High School property, near the left field line of the baseball field.

The station is located 5.3 kilometers ENE of the Charlotte, NC central business district. There is
unrestricted airflow in at least a 270º arc of exposure, including the predominant southwest wind
direction. Sample inlets are >20 meters from the nearest trees. The station is generally oriented
along the primary summer wind vector (SW to NE), downwind of the central business district of
Charlotte, NC.

The station is an NCORE multi-pollutant monitoring station. NCORE parameters monitored
include trace-level CO, trace-level SO2, trace-level NO and NOy, ozone (O3), PM2.5, PM10-2.5,
and meteorological parameters. The PM2.5, NO2 and SO2 monitors are used for NAAQS
determination. The NO2 monitor is designated as the area wide NO2 monitor for the CBSA.

PAMS is also being implemented at the station. PAMS parameters monitored at the station
include Speciated VOCs, O3, NO, NOy, Ambient Temperature, Relative Humidity, Barometric
Pressure, Wind Speed, Wind Direction, Solar Radiation, Mixing Layer Height, and Precipitation.
As of June 1, 2023, MCAQ intends to also be monitoring the following PAMS parameters at the
station: UV radiation, True NO2. By mid-summer 2023, MCAQ intends to also be measuring
carbonyls (formaldehyde and acetaldehyde)

A 1 in 3-day PM2.5 sequential monitor, a PM2.5 Met One SuperSASS Speciation monitor, and a
URG-3000n carbon sampler are located on the roof of the monitoring shelter. The PM2.5
speciation monitors are part of the speciation trends network (STN). Data from these monitors
(STN – Met One Super SASS and URG-3000n) are not used for compliance determination.

PM2.5 data from the Met One BAM PM Coarse System is reported as parameter 88101 and is
designated as a SLAMS for AQI determination and forecasting purposes. PM10 (STP), PM10
(LC), and PM10-2.5 reported from the BAM 1020 coarse system are also designated as SLAMS.

The continuous PM10 sampler operates as one of two required PM10 monitoring stations in the
MSA.

The Garinger station is an NCORE station and as such must meet additional probe siting criteria.
The meteorological tower at this station does not comply with the 10x rule for spacing from
obstructions for meteorological measurements. Due to terrain features in the Mecklenburg
County region it is difficult to locate a site that meets the requirements of the EPA Volume 4
QA/QC guidance for wind speed and wind direction measurements. Large trees are a dominant
landscape feature in the area. The closest terrain feature is 2.6x and is to the southeast of the
WS/WD instrument. The next closest obstructions (trees) are to the west of the sensor at 3.4x.
MCAQ’s 2009 NCORE Plan was approved as acceptable for WS/WD and included
documentation noting the deviation from 10x siting criteria. Therefore, WS/WD monitoring is
conducted at the current location as documented in the 2009 NCORE Plan as approved by
USEPA Region 4 and USEPA Office of Air Quality Planning and Standards (OAQPS).

33

NCORE probe siting guidance for NOy is a probe height of 10 meters. The NOy probe inlet is
currently mounted at a height of 7.0 meters.

The station complies with the siting requirements of 40 CFR 58 for criteria air pollutants. There
are no proposed changes for the siting of this station. It is recommended that the current station
status be maintained.

Additional Monitoring at Garinger High School
Monitoring for air toxics is conducted at the Garinger High School station. The North Carolina
Division of Air Quality (NCDAQ) maintains a Xontek 911 sampling device at the Garinger High
School station. MCAQ operates the sampler on a 1in 6-day sampling schedule as specified by
NCDAQ. The sampler operates on standard time.

Whole air samples are collected in stainless steel 6 liter- pressurized canisters supplied by
NCDAQ. Analysis of samples is conducted by NCDAQ. Samples are analyzed by NCDAQ
using cryogenic pre-concentration gas chromatography with mass spectrometric detection
(GC/MS) via the Compendium Method for Toxic Organics 15 (TO-15). The list of compounds
is shown in Table 7.

Air Toxics sampling at Garinger High School was paused on February 5, 2023, by NCDAQ due
to staffing shortages.

34

Parameter Parameter Code Parameter Parameter Code
Carbon Disulfide 42153 Bromodichloromethane 43828
Propene 43205 1,2 Dichloropropane (propylene dichloride) 43829
Freon 114 43208 trans-1,3 Dichloropropene 43830
Isobutene 43218 cis-1,3 Dichloropropene 43831
1,3-Butadiene 43220 1,2-Dichloroethene (ethylene dichloride) 43838
Pentane 43231 Ethylene dibromide 43843
Hexane 43242 Vinyl chloride 43860
Cyclopentane 43243 m- & p-Xylene 45109
Isoprene 43248 Benzene 45201
Cyclohexane 43270 Toluene 45202
Freon 22 43359 1,2-Dichloroethane 43815
MTBE 43372 Tetrachloro ethylene (perchloroethylene) 43817
Vinyl Acetate 43447 1,1,2,2-Tetrachloroethane 43818
Acrolein 43505 Bromomethane 43819
Methacrolein 43515 1,1,2-Trichloroethane (vinyl trichloride) 43820
Methyl Ethyl Ketone 43552 Freon 113 43821
3-Pentanone 43553 Ethylbenzene 45203
Ethylpropylketone (3-hexanone) 43557 o-Xylene 45204
Methyl Vinyl Ketone 43558 Bromodichloromethane 43828
Methyl Butyl Ketone 43559 1,2 Dichloropropane (propylene dichloride) 43829
Methyl Isobutyl Ketone 43560 trans-1,3 Dichloropropene 43830
2-Pentanone 43562 cis-1,3 Dichloropropene 43831
Acetonitrile 43702 1,2-Dichloroethene (ethylene dichloride) 43838
Methyl chloride (34hloromethane) 43801 Ethylene dibromide 43843
Methylene chloride 43802 Vinyl chloride 43860
Chloroform 43803 m- & p-Xylene 45109
Carbon tetrachloride 43804 Benzene 45201
Bromoform 43806 1,3,5-Trimethyl-benzene (mesitylene) 45207
Methyl Iodide 43808 1,2,4-Trimethyl-benzene (pseudocumene) 45208
Freon 11 43811 Styrene 45220
Chloroethane 43812 1,2,3-Trimethyl Benzene 45225
1,1-Dichloroethane (Ethylidene Chloride) 43813 Chlorobenzene (phenylchloride) 45801
1,1,1-Trichloroethane (Methyl chloroform) 43814 o-Dichlorobenzene 45805
1,2-Dichloroethane 43815 m-Dichlorobenzene 45806
Tetrachloro ethylene (perchloroethylene) 43817 p-Dichlorobenzene 45807
1,1,2,2-Tetrachloroethane 43818 Benzyl chloride 45809
Bromomethane 43819 1,2,4-Trichlorobenzene 45810
1,1,2-Trichloroethane (vinyl trichloride) 43820 1,4-Dioxane 46201
Freon 113 43821
Freon 12 43823
Trichloroethylene 43824
1,1-Dichloroethene (Vinylidene chloride) 43826
Table 7.

35

OBJECTIVE AND SPATIAL SCALE
The monitoring objective of the Garinger O3, CO, NO2, SO2, PM10, and PM2.5 (FRM) monitors is
to determine representative concentrations in areas of high population density (population
exposure). Maximum concentrations for ozone and PM2.5 may be measured under stagnant
meteorological conditions. The station is a neighborhood scale site for all parameters. Data
from this station is used to assess compliance with the NAAQS for O3, CO, NO2, SO2, PM10, and
PM2.5.

The station is located in the Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical Area.
The principal cities and counties in the MSA are Charlotte, NC; Gastonia, NC; Concord, NC;
Rock Hill, SC, NC; Cabarrus County, NC; Gaston County, NC; Iredell County, NC; Lincoln
County, NC; Mecklenburg County, NC; Rowan County, NC; Union County, NC; Chester
County, SC; Anson County; Lancaster County, SC; and York County, SC.

STATUS AND RECOMMENDATION
The Garinger NCORE station meets the required monitoring objectives and siting criteria of 40
CFR 58 Appendices A, B, C, D, and E, where applicable for criteria pollutants.

A photochemical assessment station (PAMS) will be implemented at the Garinger NCORE
station in accordance with 40 CFR 58 Appendix D, §5(a) and section III.(4). MCAQ will
continue preparing to implement the program as funding, supply chain, and personnel resources
allow with the goal of full implementation on or before July 1, 2023 for a select set of PAMS
parameters.

It is recommended that the current site status be maintained.

36

(C) Garinger Aerial Photograph

Figure 3. Garinger aerial photograph with 4 km diameter circle.

37
(D) Garinger Station Photographs

NORTH NORTHEAST

EAST SOUTHEAST

SOUTH SOUTHWEST

WEST NORTHWEST

38
2. Remount
(A) Remount Station Table
Station Name: Remount
AQS Station Identification Number: 37-119-0045
Location: 1030 Remount Road
Charlotte, NC 28208
Latitude: N35.213171º Datum: WGS84
Longitude: W80.874084º
Elevation: 194 meters
Parameter Method Method
Number
Probe
Height (m)
Sampling
Schedule
NO2 FEM 200 4.5 Continuous
NO2 CAPS 256 4.5 Continuous
CO NDIR, GFC 554 4.4 Continuous
PM2.5 FRM – Gravimetric 145 2 1 in 12 day
PM2.5 BAM 1022 209 2 Continuous
Wind Speed R. M. Young 68 10 Continuous
Wind Direction R. M. Young 68 10 Continuous
Outdoor
Temperature
R. M. Young 20 4.6 Continuous
Relative
Humidity
Met One 12 4.6 Continuous
Parameter Date Established Date Terminated
NO2 July 17, 2014 NA
CO January 1, 2017 NA
PM2.5 FRM 1/3 January 1, 2017 March 30, 2018
PM2.5 FRM Collocated 1/12 April 1, 2018 NA
PM2.5 BAM 1022 January 20, 2017 NA
Nearest Road: I-77 South Distance to Road: 35 meters
AADT:1,2 132,000 Year of Count: 2021
MSA: Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical
Area2
MSA #: 16740
2022 Population
(within 1 mile of property)
Projected 2024 Population
(within 1 mile of property)
14,919 15,359
1Annual Average Daily Traffic (AADT) Data obtained from: NCDOT Annual Average Daily Traffic (AADT) Mapping Application (arcgis.com).
2 https://www.huduser.gov/portal/datasets/geotool/summary.odn

Table 8.

39
(B) Remount Station Description and Statement of Purpose
The Remount monitoring station is located in a field adjacent to Interstate 77 South (I-77S)
between NC Highway 160 and mile marker 8. The station is located 3.2 kilometers SW of the
central business district of Charlotte, NC.

A federal equivalent method (FEM) NO2 analyzer is located at the Remount monitoring station.
The NO2 analyzer monitor type is SLAMS. The NO2 monitor is located 35 meters from the edge
of the roadway and is designated as a near-road monitoring station for the CBSA.

A federal reference method (FRM) CO analyzer is located at the Remount station and is a
SLAMS monitor type.

A federal reference method (FRM) PM2.5 and a continuous PM2.5 BAM 1022 are located at the
Remount monitoring station. The FRM PM2.5 monitor was designated as a collocated monitor for
the PM2.5 BAM 1022 (method 209) on 4/1/2018. FRM sampling was reduced from a frequency
of 1in 3 to 1 in 12 on 4/1/2018. The FRM PM2.5 and PM2.5 BAM 1022 monitors are SLAMS.

OBJECTIVE AND SPATIAL SCALE
The monitoring objective of the Remount NO2 station is to determine the highest concentrations
expected to occur in the area covered by the network. The NO2 station is classified as a
microscale station. The Remount station is representative of nitrogen dioxide concentrations in
the near-road environment. Data is used to assess compliance with the nitrogen dioxide
NAAQS. The NO2, CO, FRM-PM2.5, and PM2.5 BAM 1022 monitors are designated as SLAMS.

The station is located in the Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical Area.
The principal cities and counties in the MSA are Charlotte, NC; Gastonia, NC; Concord, NC;
Rock Hill, SC, NC; Cabarrus County, NC; Gaston County, NC; Iredell County, NC; Lincoln
County, NC; Mecklenburg County, NC; Rowan County, NC; Union County, NC; Chester
County, SC; Anson County: Lancaster County, SC; and York County, SC.

STATUS AND RECOMMENDATIONS
The station meets the required monitoring objectives and siting criteria of 40 CFR 58
Appendices A, B, C, D, and E; where applicable, for criteria air pollutants. It is recommended
that the current station status be maintained.

40
(C) Remount Aerial Photograph

Figure 4. Remount aerial photograph with 4 km diameter circle.

41
(D) Remount Station Photographs

NORTH NORTHEAST

EAST SOUTHEAST

SOUTH SOUTHWEST

WEST NORTHWEST

42
3. University Meadows
(A) University Meadows Station Table
Station Name: University Meadows
AQS Station Identification Number: 37-119-0046
Location: 1660 Pavilion Boulevard
Charlotte, NC 28262
Latitude: N 35.314158° Datum: WGS84
Longitude: W 80.713469°
Elevation: 216 meters
Parameter Method Method
Number
Probe
Height (m)
Sampling
Schedule
Ozone UV Photometry 47 4.2 March 1 –
Oct. 31,
Continuous

Parameter Date Established Date Terminated
Ozone April 1, 2016 NA
Nearest Road: Pavilion Blvd. Distance to Road: 47 meters
AADT:1 9200 Year of Count: 2016
MSA: Charlotte-Gastonia-Concord, NC-SC Metropolitan
Statistical Area2
MSA #: 16740
2022 Population
(within 1 mile of property)
Projected 2024 Population
(within 1 mile of property)
14,095 12,725
1Annual Average Daily Traffic (AADT) Data obtained from: NCDOT Annual Average Daily Traffic (AADT)
Mapping Application (arcgis.com).
2 https://www.huduser.gov/portal/datasets/geotool/summary.odn

Table 9.
(B) University Meadows Station Description and Statement of Purpose
The University Meadows station is located 15 kilometers northeast of the central business district
of the city of Charlotte, NC. The station is located approximately 340 meters north of the
intersection of Highway 49 and Pavilion Boulevard in Mecklenburg County. The monitoring
shelter is in a large grass field at University Meadows Park. There are no obstructions to air flow
near the probe.

The ozone instrument is operated during the North Carolina ozone monitoring season which
begins March 1st and ends October 31st. The ozone instrument operates continuously during the

43
seasonal period. The ozone monitor is a SLAMS monitoring station. Data is used to assess
compliance with the NAAQS.

OBJECTIVE AND SPATIAL SCALE
The monitoring objective of the University Meadows ozone station is to determine the highest
concentrations expected to occur in the area covered by the network. The station is an urban
scale station which represents ozone levels over several kilometers. Data from this station is used
to assess compliance with the NAAQS for ozone. The station is located along the primary
summer wind vector in the Charlotte area which is predominated by winds from the southwest
(prevailing wind direction). The station should measure peak ozone concentrations in
Mecklenburg County.

The station is located in the Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical Area.
The principal cities and counties in the MSA are Charlotte, NC; Gastonia, NC; Concord, NC;
Rock Hill, SC, NC; Cabarrus County, NC; Gaston County, NC; Iredell County, NC; Lincoln
County, NC; Mecklenburg County, NC; Rowan County, NC; Union County, NC; Chester
County, SC; Anson County; Lancaster County, SC; and York County, SC.
.
STATUS AND RECOMMENDATIONS
The station meets the required monitoring objectives and siting criteria of 40 CFR 58
Appendices A, B, C, D, and E; where applicable, for criteria air pollutants. It is recommended
that the current station status be maintained.

44
(C) University Meadows Aerial Photograph

Figure 5. University Meadows aerial photograph with 4 km diameter circle.

45
(D) University Meadows Station Photographs

NORTH NORTHEAST

EAST SOUTHEAST

SOUTH SOUTHWEST

WEST NORTHWEST

46
4. Ramblewood Park
(A) Ramblewood Park Station Table
Station Name: Ramblewood Park
AQS Station Identification Number: 37-119-0047
Location: 10200 Nations Ford Road
Charlotte, NC 28273
Latitude: N 35.123954° Datum: WGS84
Longitude: W 80.907577°
Elevation: 179 meters
Parameter Method Method Number Probe
Height (m)
Sampling
Schedule
PM10 (STP) BAM 1020 122 2 Continuous
Date Monitor Established: PM10 December 16, 2019
Nearest Road: I-485 Distance to Road: 238 meters
AADT:1 135,000 Year of Count: 2021
MSA: Charlotte-Gastonia-Concord, NC-SC Metropolitan
Statistical Area 2
MSA #: 16740
2022 Population
(within 1 mile of property)
Projected 2024 Population
(within 1 mile of property)
3,064 2,978
1Annual Average Daily Traffic (AADT) Data obtained from: NCDOT Annual Average Daily Traffic (AADT)
Mapping Application (arcgis.com).
2 https://www.huduser.gov/portal/datasets/geotool/summary.odn

Table 10.
(B) Ramblewood Park Station Description and Statement of Purpose
The Ramblewood Park station is 238 meters north of I-485 and 920 meters east of the center of
the intersection of I-77 and I-485 in southern Mecklenburg County. The station is located 12.9
kilometers (8.0 miles) SSW of the central business district of Charlotte, North Carolina. The
monitor is located in a large grass field between soccer field #9 and the baseball field at
Ramblewood Park. There are no obstructions to air flow near the probe.

The station complies with the siting requirements of 40 CFR §58 Appendices A, C, D, and E for
criteria air pollutants (PM10).

OBJECTIVE AND SPATIAL SCALE
The monitoring objective of the Ramblewood Park station is to measure PM10 concentrations in
an area of high population density. The station is a neighborhood scale station which represents
PM10 levels over several kilometers. Data from this station is used to assess compliance with the
NAAQS for PM10.

47

The station is located in the Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical Area.
The principal cities and counties in the MSA are Charlotte, NC; Gastonia, NC; Concord, NC;
Rock Hill, SC, NC; Cabarrus County, NC; Gaston County, NC; Iredell County, NC; Lincoln
County, NC; Mecklenburg County, NC; Rowan County, NC; Union County, NC; Chester
County, SC; Anson County; Lancaster County, SC; and York County, SC.

STATUS AND RECOMMENDATIONS
The station meets the required monitoring objectives and siting criteria of 40 CFR 58
Appendices A, B, C, D, and E; where applicable, for criteria air pollutants. It is recommended
that the current station status be maintained.

48
(C) Ramblewood Park Aerial Photograph:

Figure 6. Ramblewood Park aerial photograph with 4 km diameter circle

49
(D) Ramblewood Park Station Photographs

NORTH NORTHEAST

EAST SOUTHEAST

SOUTH SOUTHWEST

WEST NORTHWEST

50
5. Friendship Park
(A) Friendship Park Station Table
Station Name: Friendship Park
AQS Station Identification Number: 37-119-0048
Location: 2310 Cindy Lane
Charlotte, NC 28216
Latitude: N 35.281791° Datum: WGS84
Longitude: W 80.851473°
Elevation: 224 meters
Parameter Method Method Number Probe
Height (m)
Sampling
Schedule
PM2.5 BAM 1022 209 2 Continuous
Date Monitor Established: PM2.5 January 6, 2020
Nearest Road: Cindy Lane1 Distance to Road: 200 meters
2nd Closest Rd: I-77 South2 Distance to Road: 297 meters
AADT:1 8,3002, 116,0003 Year of Count: 20212, 20213
MSA: Charlotte-Gastonia-Concord, NC-SC Metropolitan
Statistical Area4
MSA #: 16740
2022 Population
(within 1 mile of property)
Projected 2024 Population
(within 1 mile of property)
5,089 6,111
1Annual Average Daily Traffic (AADT) Data obtained from: NCDOT Annual Average Daily Traffic (AADT)
Mapping Application (arcgis.com).
2Traffic information for Cindy Lane
3Traffic information for I-77 South
4 https://www.huduser.gov/portal/datasets/geotool/summary.odn

Table 11.
(B) Friendship Park Station Description and Statement of Purpose
The Friendship Park station is 200 meters south of Cindy Lane and 297 meters west of I-77
South. The station is located 6.4 kilometers (4.0 miles) North of the central business district of
Charlotte, North Carolina. The monitor is located in a large grass field between two baseball
fields at Friendship Park. There are no obstructions to air flow near the probe.

The station complies with the siting requirements of 40 CFR §58 Appendices A, C, D, and E for
criteria air pollutants (PM2.5).

OBJECTIVE AND SPATIAL SCALE
The monitoring objective of the Friendship Park station is to measure PM2.5 concentrations in an
area of high population density. The station is a neighborhood scale station which represents

51
PM2.5 levels over several kilometers. Data from this station is used to assess compliance with the
NAAQS for PM2.5.

The station is located in the Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical Area.
The principal cities and counties in the MSA are Charlotte, NC; Gastonia, NC; Concord, NC;
Rock Hill, SC, NC; Cabarrus County, NC; Gaston County, NC; Iredell County, NC; Lincoln
County, NC; Mecklenburg County, NC; Rowan County, NC; Union County, NC; Chester
County, SC; Anson County; Lancaster County, SC; and York County, SC.

STATUS AND RECOMMENDATIONS
The station meets the required monitoring objectives and siting criteria of 40 CFR 58
Appendices A, B, C, D, and E; where applicable, for criteria air pollutants. It is recommended
that the current station status be maintained.

52
(C) Friendship Park Aerial Photograph:

Figure 7. Friendship Park aerial photograph with 4 km diameter circle

53
(D) Friendship Park Station Photographs

NORTH NORTHEAST

EAST SOUTHEAST

SOUTH SOUTHWEST

WEST NORTHWEST

54

6. Equipment Drive
(A) Equipment Drive Station Table
Site Name: Equipment Drive
AQS Site Identification Number: 37-119-0050
Location: Equipment Drive (address approximate)
Charlotte, NC 28269
Latitude: N 35.27831° Datum: WGS84
Longitude: W -80.79698°
Elevation: 232 meters
Parameter Method Method Number Probe
Height (m)
Sampling
Schedule
NO2 CAPS 256 4 Continuous
Date Monitor Established: NO2 January 1, 2024 (approximate
date)
Nearest Road: I-85 Distance to Road: 24 meters (approx.
distance)
Traffic Count1: 157,000 Year of Count: 2021
MSA: Charlotte-Gastonia-Concord, NC-SC Metropolitan
Statistical Area2
MSA #: 16740
2022 Population
(within 1 mile radius of property)
Projected 2024 Population
(within 1 mile radius of property)
7,158 9,367
1Annual Average Daily Traffic (AADT) Data obtained from: NCDOT Annual Average Daily Traffic (AADT)
Mapping Application (arcgis.com).
2https://www.huduser.gov/portal/datasets/geotool/summary.odn

(B) Equipment Drive Station Description and Statement of Purpose
The Equipment Drive monitoring station is located in a grassy area adjacent to Interstate 85
South (I-85S) between North Graham Street and West Sugar Creek Road. The station is located
7.0 kilometers NE of the central business district of Charlotte, NC at latitude N 35.27831°and
longitude W -80.79698°.

A federal equivalent method (FEM) NO2 analyzer will be located at the Equipment Drive
monitoring station. The NO2 analyzer monitor type is SLAMS. The NO2 monitor will be
approximately 24 meters from the nearest traffic lane and is designated as a near-road monitoring
station for the CBSA.

55
The station meets the required monitoring objectives and siting criteria of 40 CFR Part 58 for
criteria air pollutants (NO2).

OBJECTIVE AND SPATIAL SCALE
The monitoring objective of the Equipment Drive NO2 station is to determine the highest
concentrations expected to occur in the area covered by the network. The NO2 station is
classified as a microscale station. The Equipment Drive station is representative of nitrogen
dioxide concentrations in the near-road environment. Data is used to assess compliance with the
nitrogen dioxide NAAQS.

The site is located in the Charlotte-Gastonia-Concord, NC-SC Metropolitan Statistical Area. The
principal cities and counties in the MSA are Charlotte, NC; Gastonia, NC; Concord, NC; Rock
Hill, SC and Cabarrus County, NC; Gaston County, NC; Iredell County, NC; Lincoln County,
NC; Mecklenburg County, NC; Rowan County, NC; Union County, NC; Anson County, NC:
Chester County, SC; Lancaster County, SC; and York County.

(C) Equipment Drive Aerial Photograph:

Figure 12. Equipment Drive aerial photograph with 4 km diameter circle

56
(D) Equipment Drive Site Photographs

NORTH NORTHEAST

EAST SOUTHEAST

SOUTH SOUTHWEST

WEST NORTHWEST

57

58
V. REFERENCES
1. TITLE 40—Protection of Environment CHAPTER I—ENVIRONMENTAL PROTECTION
AGENCY, SUBCHAPTER C—AIR PROGRAMS, PART 58—AMBIENT AIR QUALITY
SURVEILLANCE, March 13, 2020.

2. Connect NCDOT. County-Area Traffic Volume Maps (By Year).
https://connect.ncdot.gov/resources/State-Mapping/Pages/County-Area-Traffic-Volume-Maps-
Year.aspx . North Carolina Department of Transportation, Raleigh, NC 27699-1501. 2018.

3. Connect NCDOT. Urban-Area Traffic Volume Maps.
https://connect.ncdot.gov/resources/State-Mapping/Pages/Urban-Area-Traffic-Volume-
Maps.aspx . North Carolina Department of Transportation, Raleigh, NC 27699-1501. 2018.

4. Connect NCDOT AADT Mapping Application
http://ncdot.maps.arcgis.com/apps/webappviewer/index.html?id=5f6fe58c1d90482ab9107ccc030
26280 North Carolina Department of Transportation, Raleigh, NC 27699-1501. 2018.

5. QA Handbook for Air Pollution Measurement Systems: “Volume IV: Meteorological
Measurements Version 2.0" EPA-454/B-08-002, March 2008(PDF)

6. QA Handbook for Air Pollution Measurement Systems: “Volume II: Ambient Air Quality
Monitoring Program" EPA-454/B-17-001, January 2017 - Full Document (PDF)

7. Bannister, Beverly. EPA Response Letter to “2018-2019 Monitoring Plan (MCAQ)”, October
22, 2018.

8. EPA Extension of Start Date for Photochemical Assessment Monitoring Stations Fact Sheet
PDF. https://www.epa.gov/sites/production/files/2019-
12/documents/final_pams_extension_fact_sheet.pdf, December 20, 2019.

9. Mecklenburg Demographics. Mecklenburg County GIS, Charlotte, NC 28208. 2023

59
VI. APPENDIX A
Monitoring Equipment Replacement Tables

60

Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Notes Condition
Additel Barometer 211H170D0003 681 Suttle-Lab Good
Agilaire Airvision Server AIRVISION1V Suttle-Lab Good
Agilent
Technologies
GC System US18403039 69097 78908 Suttle-Lab 09/21/19 Includes Unity XR, CIA Advantage,
and Kori XR
Good
AirGas Gas Cylinder C-000669 MCAQ#161 Suttle-Lab Good
AirGuide Barometer 3 AirGuide Suttle-Lab Good
AirGuide Barometer 4 AirGuide Suttle-Lab Good
Alicat Scientific Alicat Flow Meter 45717 M-10SCCM-D/5M Suttle-Lab Good
Alicat Scientific Alicat Flow Meter 111447

MW-10SCCM-D/5M Suttle-Lab

Good
Alicat Scientific Alicat Flow Meter 185930 FP-25BT Suttle-Lab Good
Alicat Scientific Alicat Flow Meter 185931

FP-25BT Suttle-Lab

Good
Alicat Scientific Alicat PCU 111448 PCUW-20SCCM-200SCCM-10SLPM-
.25SWCOMP
Suttle-Lab Good
Alicat Scientific Alicat PCU 111449 PCUW-20SCCM-200SCCM-10SLPM-
.25SWCOMP
Suttle-Lab Good
Alicat Scientific Alicat PCU 111450 PCUW-20SCCM-200SCCM-10SLPM-
.25SWCOMP
Suttle-Lab Good
Apogee Sol-a-meter SP-110 University
Meadows
Good
APW McLean Air Conditioner 04029597-3 CR29-0216-G047 Ramblewood
Park
Good
Arc 3 Gases Gas Cylinder EB0123168 MCAQ#169 150A Garinger Good
Arc3 Gases Gas Cylinder EB0061240 MCAQ#168 150A Remount

Good
Arc3 Gases Gas Cylinder ER0004772 MCAQ#173 80A Garinger Good
Bard Air Conditioner 309M112852661-02 W36A1-A05XP4XXJ Garinger Good
BGI Instruments Delta Cal 36 Delta Cal Suttle-Lab Good
BGI Instruments Delta Cal 78 Delta Cal Suttle-Lab Good
BGI Instruments Tetra Cal 345

Tetra Cal Suttle-Lab

Spare
BGI Instruments Tetra Cal 365 Tetra Cal Suttle-Lab Spare
BGI Instruments Tetra Cal 441

Tetra Cal Suttle-Lab

Spare
Bios International
Corp
DryCal DC-Lite 7468

DCL-L Suttle-Lab

Good
Bios International
Corp
DryCal DC-Lite 103222

DCL-H Suttle-Lab

Good
Bios International
Corp
Nexus 1071 DCNS Suttle-Lab Good
Brunton Pocket Transit 2611000210

2061 Suttle-Lab

Good

61
Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Notes Condition
Chinook
Engineering
FTS 777 FTS Suttle-Lab Spare
Chinook
Engineering
FTS 981023

FTS Suttle-Lab

Good
Chinook
Engineering
FTS 990399 FTS Suttle-Lab Good
Chinook
Engineering
FTS 981016A FTS Suttle-Lab Good
Chinook
Engineering
FTS H981014A FTS Suttle-Lab Good
Cradlepoint Cradlepoint MM130504000352

IBR600lpe Suttle-lab

Good
Cradlepoint Cradlepoint MM160030300417 IBR600lpe Suttle-Lab Good
Cradlepoint Cradlepoint MM160075900576 IBR600lpe Suttle-Lab Good
Cradlepoint Cradlepoint WA201800290009 IBR600C-150M-D Garinger
(PAMS)
Good
Cradlepoint Cradlepoint WA213700541950 IBR600c University
Meadows
Good
Cradlepoint Cradlepoint WA214500574873 IBR600C-150M-D Ramblewood Good
Cradlepoint Cradlepoint WA213800545056 IBR600C-150M-D Friendship Good
Cradlepoint Cradlepoint WA213800545139 IBR600C-150M-D Remount Good
Cradlepoint Cradlepoint WA213800544905 IBR600C-150M-D Garinger Good
Cradlepoint Cradlepoint-Sharon towers MM16012650037 IBR600lpe Suttle-Lab Good
Druck Barometer 7401000

DPI 740 Suttle-Lab

Good
Druck Barometer 74001908 DPI 740 Suttle-Lab Good
Dwyer Manometer 2 1230 Suttle-Lab Good
Dwyer Manometer 4

1230 Suttle-Lab

Good
Dwyer Manometer 7 1230 Suttle-Lab Good
Dwyer Manometer 8

1230 Suttle-Lab

Good
Dwyer Manometer 9 1230 Suttle-Lab Good
EKTO Shelter 3278-7 432 SP Suttle-Lab 11/01/02 Good
EKTO Shelter 3577-8 67847 432SP Ramblewood
Park
Good
Environics Environics 9100 1887 63216 9100 Suttle-Lab 11/01/93

Surplus
Environics Environics 6103 3170 67771 6103 Suttle-Lab 10/01/03

Good
Environics Environics 6100 4202 63226 6100 Suttle-Lab 04/17/08

Good
Environics Environics 6100 6527 72399 6100 Garinger 04/30/15 Good
ESC Data Logger 8832 A0064 67667 8832 Suttle-Lab 06/01/02

Good

62
ESC Data Logger 8832 A0160 67697 8832 University
Meadows
10/11/02 Good
ESC Data Logger 8832 A0304 67729 8832 Ramblewood
Park
03/26/03 Good
ESC Data Logger 8832 A0409 67773 8832 Suttle-Lab 10/08/03

Good
Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Notes Condition
ESC Data Logger 8832 A0896 67860 8832 Suttle-Lab 03/08/05 Good
ESC Data Logger 8832 A2333K 63292 8832 Suttle-Lab 02/07/08

Good
ESC Data Logger 8832 A4829K 64603 8832 Remount 03/20/14 Good
ESC Ambient Temperature Sensor 10

103-4000 Suttle-Lab

Good
ESC Data Logger 8864 C2568 69146 8864 Garinger Good
ESC Site Temperature 6 103-4000 University
Meadows
Good
Fisher Scientific Excursion-Trac Thermometer 181376177 15-081-125,15214026 Suttle-Lab Good
Fisher Scientific Toxics Flow Meter 292328 520 Garinger Good
Fluke Voltmeter 5690145

27 Suttle-Lab

Good
Fluke Voltmeter 78540313 87III Suttle-Lab Good
Fluke Voltmeter 97410278 87V Suttle-Lab Good
Fourtec Fourtec Thermometer 7014421

EC850 Suttle-Lab

Good
Frost Boats Trailer 1F9FC1425FG127185 6387 University
Meadows
10/13/15 Good
GAST Compressor 5Z675A M550EX Suttle-Lab Good
Hampshire
Controls
Site Temperature 1902-3445-27484 140-100HV-MB Garinger Good
Hart Scientific Micro Bath A32653 7102 Suttle-Lab Next priority for replacement. Good
Jun-Air Compressor 552774

OF302 Suttle-Lab 04/07/04

Good
Keuffel & Esser
Company
Transit 169553 P5137 Suttle-Lab Good
Markes
International
Canister Auto Sampler GB00H10293-18/11 69097 CIA Advantage-XR Suttle-Lab 09/21/19 Good
Markes
International
Thermal Desorber GB00U33144-18/11 69097 Unity XR Suttle-Lab 09/21/19 Good
Markes
International
Water Condenser GB00W10188-18/11 69097 Kori XR Suttle-Lab 09/21/19

Good
Matrix Inc. Sol-a-meter 4776

MK 1-G Suttle-Lab

Good
Matrix Inc. Sol-a-meter 4998 MK 1-G Suttle-Lab Good
Matrix Inc. Sol-a-meter 5873

MK 1-G Suttle-Lab

Good
Matrix Inc. Sol-a-meter 5937

MK 1-G Garinger

Good

63
Mesa Laboratories Definer 111971 Definer 220-L Suttle-Lab Good
Mesa Laboratories Definer 112233

Definer 220-H Suttle-Lab

Good
Mesa Laboratories Definer 133693 Definer 220-H Suttle-Lab Good
Mesa Laboratories Definer 133703 Definer 220-L Suttle-Lab Good
Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Notes Condition
Met One
Instruments
SASS Y4594 67704 SASS Suttle-Lab 10/01/00 Spare
Met One
Instruments
SASS D7162 67849 SASS Suttle-Lab 12/07/04 Spare
Met One
Instruments
BAM-1020 H1935 63263 1020 Lab 04/17/08

Spare
Met One
Instruments
SASS N1099 72214 Super SASS Garinger 04/11/12 Good
Met One BAM-1020 1020 Ramblewood 12/2022 Good
Met One
Instruments
BAM-1020 U20336 69786 1020 Garinger 11/23/16

Good
Met One
Instruments
BAM-1020 U20337 69787 1020 Garinger 11/23/16

Good
Met One
Instruments
BAM-1022 U13546 69784 1022 Friendship Park 11/23/16 Good
Met One
Instruments
BAM-1022 X15279 69785 1022 Remount 11/23/16 Good
Met One
Instruments
BAM-1020 H7548

BAM 1020 Suttle-Lab

Good
Met One
Instruments
Relative Humidity Sensor R17904

083E-0-35 Garinger

Good
Met One
Instruments
Relative Humidity Sensor R20523 083E-0-35 Suttle-Lab Good
Met One
Instruments
Relative Humidity Sensor T19893 083E-0-35 Remount Good
Met One
Instruments
Relative Humidity Sensor Y20492

083E-0-35 Suttle-Lab

Good
Met One
Instruments
SASS Temperature Resistance
Box
J7455 9099 Suttle-Lab Good
Met One
Instruments
Sonic Anemometer J6601 50.5H Remount Good
Met One
Instruments
Sonic Anemometer R13845 50.5H Garinger Good
NovaLynx Corp. Precipitation Calibrator 946-001

260-2595 Suttle-Lab

Good
NovaLynx Corp. Precipitation Calibrator 946-002 260-2595 Suttle-Lab Good
OMEGA OMEGA Thermometer 98:8B:AD:00:38:94 OM-EL-WIFI-TH-PLUS Suttle-Lab Good
Praxair Gas Cylinder DT0021631 MCAQ#165 150A Garinger

Good
Praxair Gas Cylinder JB02884 MCAQ#166 50A Remount

Good
R.M. Young Barometric Pressure Sensor BPA 7587

BPA 7587 Garinger

Good

64
R.M. Young Temperature Sensor 19041 41342VC Garinger Good
R.M. Young Temperature Sensor 25844

41342VC Remount

Good
R.M. Young Tipping Bucket Rain Gauge TB 05899 52202 Suttle-Lab Good
R.M. Young Tipping Bucket Rain Gauge TB01473 52202 Garinger Good
RM Young Sonic Anemometer UD00004438 86000 Suttle-Lab Good
Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Notes Condition
Sartorius Balance 20902085 61749 AC2105 Suttle-Lab 06/14/95

Spare
Scott Marrin Gas Cylinder CA01400 MCAQ#159 150A Remount Good
Scott Marrin Gas Cylinder CC105072 MCAQ#162 150A Garinger Good
Scott Marrin Gas Cylinder CC37915 MCAQ#148 150A Garinger

Good
Scott Marrin, Inc Gas Cylinder CC106586 MCAQ#95 150A Suttle-Lab Good
Scott Marrin, Inc Gas Cylinder CC42695 MCAQ#164 150A Suttle-Lab

Good
Scott-Marrin, Inc Gas Cylinder CC286 MCAQ#152 150A Suttle-Lab Good
Scott-Marrin, Inc Gas Cylinder CC89561 MCAQ#158 150A Suttle-Lab Good
Scott-Marrin, Inc Gas Cylinder JJ21192 MCAQ#150 50A Suttle-Lab Good
Shelter One Shelter 20053-01 C1152095 20053 Garinger 12/01/11 Good
Shelter One Shelter 23053-01 66088 C101695 23053 Remount 04/09/14

Good
Shelter One Shelter 25040-01 72258 MMS8 25040 University
Meadows
10/13/15 Good
Shelter One Shelter Remount 10/2022 For 2nd near-road site (Equipment
Dr); Temporarily being stored at
Remount.
Good
Teledyne
Hastings-Raydist
Bubble Meter 549 HBM-1A Suttle-Lab Good
Teledyne
Instruments
Zero Air System T701H Suttle-Lab 3//2022 For 2nd near-road site (Equipment
Dr.)
Good
Teledyne
Instruments
N500 CAPS True NO2 N500 Garinger Good
Teledyne
Instruments
N500 CAPS True NO2 N500 Remount 7/2022 Good
Teledyne
Instruments
N500 CAPS True NO2 N500 Lab For 2nd near-road site (Equipment
Dr.)
Good
Teledyne
Instruments
CO Analyzer 68 67861 300EU Suttle-Lab 03/11/05

Spare
Teledyne
Instruments
Zero Air System 2809 64822 M701H Suttle-Lab 10/17/08 Next priority for replacement Good
Teledyne
Instruments
Zero Air System 3033 67371 M701H Garinger 11/05/09 Next priority for replacement Good
Teledyne
Instruments
Zero Air System 3035 67371 M701H University
Meadows
11/05/09 Next priority for replacement Good

65
Teledyne
Instruments
Zero Air System 98 72991 M701H Suttle-Lab 10/26/10 Next priority for replacement Good
Teledyne
Instruments
NO2 Analyzer 81 69969 T200UP Lab 08/26/13 Good
Teledyne
Instruments
T700U Calibrator 182 64608 T700U Remount 01/20/14

Good
Teledyne
Instruments
T700U Calibrator 725 T700U Suttle-Lab For 2nd Near-road NO2 site Good
Teledyne
Instruments
Zero Air System 793 64609 M701H Remount 01/20/14 Good
Teledyne
Instruments
NO2 Analyzer 114 T200U Garinger Good
Teledyne
Instruments
SO2 Analyzer 101

T100U Suttle-Lab

Good
Teledyne
Instruments
NO2 Analyzer 93 N500 Garinger Good
Teledyne
Instruments
NO2 Analyzer 115 70059 N500 Remount Good
Thermo Ozone Analyzer 49C-56618-309 66331 49C Suttle-Lab 11/01/96 Spare
Thermo Ozone Primary Standard 49CPS-56545-309 66332 49CPS Suttle-Lab 11/01/96 Spare
Parts
Thermo Ozone Primary Standard 49CPS-73995-375 67660 49C Suttle-Lab 04/01/02 Spare
Parts
Thermo Ozone Primary Standard 49CPS-73996-375 67658 49CPS Suttle-Lab 04/01/02 Good
Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Next priority for replacement. Condition
Thermo Ozone Primary Standard 49CPS-73997-375 67659 49CPS Suttle-Lab 04/01/02

Good
Thermo FRM 2025B217200408 67843 2025B Suttle-Lab 11/03/04 Spare
Thermo Ozone Analyzer 432209351 67841 49C Suttle-Lab 11/23/04 Spare
Parts
Thermo Ozone Primary Standard 432209352 67842 49CPS Suttle-Lab 11/23/04

Good
Thermo Ozone Analyzer 636319876 67965 49I Suttle-Lab 12/22/06 Good
Thermo Ozone Analyzer 636319877 67966 49I Suttle-Lab 12/22/06

Spare
Thermo 146I Gas Calibrator 717821846 68014 146I Suttle-Lab 06/30/07 Spare
Thermo Ozone Primary Standard 734726810 99068 49IPS Suttle-Lab 01/14/08 Good
Thermo FRM 2025B219590706

2025B Suttle-Lab 05/01/08

Spare
Thermo FRM 2025B221720804 68066 2025B Suttle-Lab 06/11/08 Spare
Thermo FRM 2025B226221002 66044 2025B Suttle-Lab 05/13/10

Spare
Thermo Ozone Primary Standard 1027444721

49IPS Garinger 01/01/11 Next priority for replacement Good
Thermo NOy Analyzer 1213152833 72314 42IY Garinger 06/20/12 Good
Thermo SO2 Analyzer 1213152834 72361 43I Garinger 07/17/12

Good
Thermo CO Analyzer 1220753779 72356 48I Garinger 10/17/12

Good

66
Thermo FRM 2025I2 02341205 72358 2025I Lab 10/24/12 Spare
Thermo FRM 2025i-AW 2025i Garinger 1/2023 Good
Thermo Ozone Analyzer 1152660035 72272 49I Garinger 01/13/16 Good
Thermo NO2 Analyzer 1153170016 69870 42I Suttle-Lab 01/13/16 Spare
Thermo Ozone Primary Standard 1153380012 72256 49IPS University
Meadows
02/02/16 Good
Thermo Ozone Analyzer 728225131 68048 49I University
Meadows
10/22/17 Good
Thermo CO Analyzer 1502064047 201077 48I-TLE Remount Monitoring
began
01/01/2017
On loan from NCDAQ-Near-road
CO.
Good
Thermo FRM 2025IW2 0996 1603 300348 2025IW Remount Monitoring
began
01/01/2017
On loan from NCDAQ-Near-road
PM 2.5.
Good
Thermo Zero Air System 111-28998-233 111 Suttle-Lab Good
Thermo
Environmental
PM2.5 FRM 2025A204679807 67702 2025a Suttle-Storage 10/01/98

Spare
Thermo-GAST Laboratory Compressor NXGTE-4870 Suttle-Storage Spare
Transcat Voltage Calibrator 9733019 23894E Suttle-Lab Good
URG Corp. URG 3N-B0428

URG-3000N Suttle-Lab 02/01/09

Spare
URG Corp. URG 3N-B0524 3N-3000N Lab Spare
URG Corp. URG Garinger Monitoring
began 6/2022
Loan from OAQPS
Vaisala Humidity Calibrator M210185en-A

HMK15 Suttle-Lab

Good
Manufacturer Type Equipment Serial # Asset
Number
Model Site Date
Purchased
Notes Condition
Vaisala Relative Humidity Wand R3340580 HM70 Suttle-Lab Good
Vaisala Relative Humidity Wand R3340581 HM70 Suttle-Lab Good
Vaisala Ceilometer S3240436 CL51 Garinger 07/30/20 Good
VWR Barometer 5

15551-024 Suttle-Lab

Good
VWR Thermometer 90185236 61220-601 Suttle-Lab Good
VWR Thermometer 130189334

61220-601 Suttle-Lab

Good
VWR Thermometer 140432915 61220-601 Suttle-Lab Good
Xonteck Toxics 911 Garinger Good
Xonteck Toxics 911 Oehler On loan from NCDAQ for pipeline
spill site SPM
Good

Community Science Station

Garinger

Good
Visibility Camera- Sharon
towers
Suttle-Lab Good

67

68

VII. APPENDIX B
Memorandum of Agreement

69

70

71

72

73

74

75

76

77

VIII. APPENDIX C
Site Review Forms Calendar Year 2023

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98
IX. APPENDIX D
PM2.5 Continuous Monitor Comparability Assessment

99

100

101
X. APPENDIX E
PAMS Parameter Codes - Auto-GC-FID Speciated VOCs

102
PAMS parameter list: The method code for the Agilent Auto-GC-FID systems is 228, unit code
078 and interval 1.

Parameter Code Parameter Name
43202 Ethane
43203 Ethylene
43204 Propane
43205 Propylene
43214 Isobutane
43212 n-Butane
43206 Acetylene
43216 trans-2-Butene
43280 1-Butene
43217 cis-2-Butene
43242 Cyclopentane
43221 Isopentane
43220 n-Pentane
43218 1,3-Butadiene
43226 trans-2-Pentene
43224 1-Pentene
43227 cis-2-Pentene
43244 2,2-Dimethlybutane
43284 2,3-Dimethlybutane
43285 2-Methlypentane
43230 3-Methlypentane
43243 Isoprene
43245 1-Hexene
43231 n-Hexane
43262 Methylcyclopentane
43247 2,4-Dimethlypentane
45201 Benzene
43248 Cyclohexane
43263 2-Methlyhexane
43291 2,3-Dimethylpentane
43249 3-Methlyhexane
43250 2,2,4-Trimethlypentane
43232 n-Heptane
43261 Methylcyclohexane
43252 2,3,4-Trimethlypentane
45202 Toluene
43960 2-Methlyheptane
43253 3-Methlyheptane
43233 n-Octane
45203 Ethylbenzene
45109 m/p-Xylene

103
45220 Styrene
45204 o-Xylene
43235 n-Nonane
45210 Isopropylbenzene
43256 α-pinene
45209 n-Propylbenzene
45212 m-ethyltoluene
45213 p-Ethyltoluene
45207 1,3,5-Trimethlybenzene
45211 o-Ethyltoluene
43257 β-pinene
45208 1,2,4-Trimethlybenzene
43238 n-Decane
45225 1,2,3-Trimethlybenzene
45218 m-Diethylbenzene
45219 p-Diethylbenzene
43954 n-Undecane
43141 n-Dodecane
43102 TNMHC
43000 TNMTC

104
XI. APPENDIX F
Responses Public Comments on Annual Network Plan

105
On May 22, 2023, the “2023-2024 Annual Monitoring Network Plan - MCAQ” was released for
public comment during a meeting of the Mecklenburg County Air Quality Commission (AQC).
The public comment period was open May 22, 2023 through June 22, 2023.

Summary of Public Comment Period
No comments were received during the public comment period.

Comment: N/A

MCAQ Response: N/A