### UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION Ill 1650 Arch street Philadelphia, Pennsylvania 19103-2029



### The Honorable Douglas Domenech Secretary ofNatural Resources P.O. Box 1475 Richmond, Virginia 23218 

## Dear

# Secre~2Jtr FEB Z12013

Byletter and enclosures dated June 22, 2012, the Virginia Department ofEnvironmental Quality (VADEQ) submittedto the U.S. Environmental ProtectionAgency (EPA) an annual ambient airmonitoring networkplan in accordance withthe regulatory requirements of40 CFR Part 58- AmbientAir Quality Surveillance. Based on ourreview, EPA approves VADEQ's June 22, 2012 annual ambient airmonitoring networkplanonthebasisthat theplanmeetsthe requirements of40 CFRPart 58.10. Additionally, 40 CFR Section 58.11(c) requires any changesto the airmonitoring network ordesign ofthe following air monitoring systems be approved bythe EPA Administrator: a) Photochemical AssessmentMonitoring Systems b) Particulate Matter Speciation TrendsNetwork c) The National Core Monitoring Network EPA determined that VADEQ'sJune 22, 2012 annual ambient airmonitoring networkplandoes not require approval from the EPAAdministratorbecause there were no changesto any ofthe air monitoring systems listed above. Ifyouhave any questions, please do nothesitate to contactme orhave your staffcontact Dr. Jennie P. Saxe, EPA'sVirginiaLiaison, at (215) 814-5806. Forquestions regarding this approval action, your staffmay contactMs. DianaEsher, Director, AirProtectionDivision, at (215) 814-2706.

cc: Mr. David Paylor, VADEQ

# ;J;;__d~L ShawnM. Garvin Regional Administrator


# VPrintedon 100% recycled/recyclablepaperwith 100%post-consumer fiber andprocess chlorine free. CustomerServiceHotline: 1-800-438-2474

## VA NETWORK CHANGES 2012VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY AIR QUALITY MONITORING NETWORK CHANGES INSTRUMENTATION CHANGES SINCE LAST REVIEW JULY 1, 2011 to JUNE 30,2012 51-510-0009, L-126-C Alexandria Health Department, Alexandra, AQCR7 On January 1, 2012, the Office ofAir Quality Monitoring shutdownthe PM2.5 FRM monitor located atthe monitoring site in Alexandria City. This monitor began operating atthis site on January 1, 2010. The monitorwas placed there originally to address concerns expressed by the City ofAlexandria regarding the impact ofemissions from the Mirant/GenOn electric generating facility. The Company has notified the City ofAlexandria of its intentto shutdownthis facility which negates the original purpose for siting the monitor. 51-013-0020, 47-T, Aurora Hills Visitor Center, Arlington Co., AQCR7 Boththe PM2.5 FRM monitorand the collocated monitorwere shutdown atthis sitefrom November29, 2010 until July 2, 2011 due to maintenance activities. The activities involved reroofing the building due to age and continued problems with leaks. The samplers began sampling in the 3rd quarterof2011. 51-087-0014, 72-M, MathScience Innovation Center NCore Site, Henrico County, AQCR5 The MSIC site is the NCore location for Virginia. The NCore sitewas required to havethe TSP lead monitor operating by a regulatory deadline ofJanuary 1, 2012. The TSP lead monitor has been installed and was operating priortothe regulatory deadline. Virginia Continuous Air Monitoring Sites Data Acquisition System On August 10, 2011, the Virginia Department of Environmental Quality began operating a new Data Acquisition System forthe continuous air monitoring sites within the Commonwealth. This is thefirststep in a 3 step projectto create afully internet based Data Acquisition System that replaces the current dial up system data system. The newsystem is being maintained on a server in Round Rock, Texas by IPS Meteostar. The basic software being used is the IPSM licensed product LEADS. The stations that are currently being gathered on this new system are listed in Attachment A to this document. On April1, 2012 atthe beginning ofthe official ozone data gathering season in Virginia, a newAir Monitoring Data web page was launched using the LEADS software and the new data polling system supported by the IPSM system. This web page allows the public to have access to near real time hourly data generated atthe stations included in the polled network (attachment A). This page is also being used by regional monitoring operators as a means ofchecking the stations from any location and to schedule theirvisits accordingly. Once fully implemented, the public will have access to data as far back as 2000. ANTICIPATED INSTRUMENTATION CHANGES JULY 1, 2012 through JUNE 30, 2013 Near Road Monitoring Sites
- Carbon Monoxide 51-013-0020, Aurora Hills Visitor Center, Arlington Co., CO Monitor, AQCR7 51-760-0024, Science Museum ofVirginia, Richmond City, CO Monitor, AQCR5 51-170-0024, NOAA Facility, Norfolk City, CO monitor, AQCR6 Above are the monitors projected to be moved tothe roadside sites based on the requirements ofthe new Carbon Monoxide NAAQS standard. This move will occur in conjunction with the installation ofthe NOx monitoring sites. A fixed schedulewill be worked outcontingent upon the results ofthe NOx installation schedule. 51-047-0002, Farmington ES, Culpeper Co., PM10 Monitor, AQCR4

- 1-The PM10 Monitor is currently being reviewed as tothe necessity of maintaining this monitoring site. This monitor may be removed priorto July 1, 2013. 51-187-0004, Front Royal Memorial Hospital, Warren Co., PM10 Monitor, AQCR2 The PM10 Monitor is currently being reviewed as to the necessity of maintaining this monitoring site. This monitor may be removed priorto July 1, 2013. Virginia Continuous Air Monitoring Sites Data Acquisition System AQM will implement phase 2 and partofphase 3 ofthe Data Acquisition System implementation schedule. This involves a hardware upgrade at both the Science Museum of Virginia site (51-760-0024) in Richmond City and at the MathScience Innovation Center (51-087- 0014) in Henrico County. This hardware upgrade will facilitate the initiation ofan automated Quality Assurance program thatwill allow regional operators and AQM technicians to perform zero/span/precision and calibration procedures from their laptops. Once these 2 sites have been tested and validated, hardware upgrades will be implemented region by region until complete.

Near Road Monitoring Sites ANTICIPATED SITE CHANGES JULY 1, 2012 through JUNE 30, 2013
51-059-XXXX, Near Road Site, Fairfax County, AQCR7 51-710-XXXX, Near Road Site, Norfolk/Virginia Beach, AQCR6 51-760-XXXX, Near Road Site, Richmond City, AQCR5 The revised NOx NAAQS required the implementation ofa near road monitoring network to measure peak NOx road side concentrations. Virginia will be installing 3 sites based on population levels: one will be in Northern Virginia along the 95/395 Springfield Interchange; one will be in Richmond City atthe Bryan Park Interchange; and thethird will be in Hampton Roads at the intersection of64/264 atthe Virginia Beach/Norfolk border. The regulatory requirement for installation ofthese sites is January 1, 2013. 51-770-0011, Cherry Hill Subdivision, Roanoke City, TSP-Lead and PM10, AQCR2 The lead monitoratthis location is a source oriented monitortargeting lead emissions from Roanoke Electric Steel DBA Steel Dynamics. Steel Dynamics has purchased the property upon which the monitor is placed so DEQ will relocate this monitorto FairView Elementary School as soon as the MOU can be completed. The new location will not be influenced only by Steel Dynamics so a study will be initiated upon the relocation to correlate wind directionwith monitor results to determine ifindividual lead emitters can be isolated. The existing PM10 monitorwill also be moved as part ofthis site relocation. 51-510-0009, Alexandria Health Department site, Alexandria City, AQCR7 In a letterfrom AQM to the Alexandria City Office of Environmental Quality, AQM conditionally approved the relocation ofthe Alexandria monitoring sitefrom its currently location at 517 N. St. Asaph streetto 3200 Colvin Street. The conditional approval is based on existing local factors that could negatively bias the ozone results from this site. There are two auto body shops within 2 blocks ofthe location as well as a recycled asphaltstorage pile immediately adjacentto the site. Alexandria will relocate and operate this sitewith the current S02, N02 and CO monitors. Alexandria will operate the 03 monitoras a special purpose monitorfortwoyears sothat AQM can evaluate the date trends to determine ifthe variability ofthe data is consistent with othersimilarsites in the Northern Virginia area. SPECIAL STUDIES: VA DEQ Office ofAir Quality Monitoring received a grantfrom EPA to studythe Methyl Bromide fumigation operations in Suffolk City (Hampton Roads, AQCR6). DEQ will be conducting these studies through fall of 2012. The Virginia Department of Health has provided extensive information on recommended data gathering and evaluation and will be assisting with the Risk Assessment reportthatwill be generated from the data gathered during this study. Field studies begin in Spring, 2012. -2-Attachment A. Listing ofStations polled by the new Data Acquisition System



### 51-510-0009 ! Alexandria Health Dept. Alexandria 47-T 51-013-0020 ! Aurora Hills Visitor Center Arlington 38-1 51-107-1005 ! Ashburn - Broad Run High School Ashburn 75-B 51-036-0002 !Shirley Plantation Charles City County 33-A 51-003-0001 ! Albemarle High School Charlottesville 71-H 51-041 -0004 !Beach Road VDOT Chesterfield County 48-A 51-033-0001 Fredericksburg Geomagnetic Corbin Observatory 37-B 51-061-0002 Sumerduck
- C

. Phelps Wildlife Fauquier County MgmtArea 46-B9 51-059-0030 !Lee District

### P~rk__: Fairfax County Franconia

28-J 51-069-0010 Frederick Co

. Public School Maint. Frederick County Dept. 179-K 51-650-0008 !NASA Langley Researc

_ h

_

_ Center Hampton 73-E 51-085-0003 !Hanover Hanover County 72-M 51-087-0014 MSIC (MathScience Innovation Henrico County
,Center) 181-A1 51-710-0024

## gAA Storage Facility Norfolk



### -- 29-D 51-139-0004 !Luray Caverns Airport Page County 45-L 51-153-0009

## ~~**ng ~!**  - Haymarket Prince William County 158-W 51-760-0024 ' jscience Museum of Virginia Richmond 109-M 51-770-0015 ·= t-Round HiiiMontessori Elementary Roanoke School 21-C 51-163-0003

## Nat**l** Bridge Station Rockbridge County 26-F 51-165-0003

## Harris**nburg** VDOT Rockingham County 16-B 51-197-0002 !Rural Retreat Rural Retreat 35-A 51-113-0003 Shenandoah National Park - Big Shenandoah National Meadows Park 44-'A 51-179-0001 Widewater Elem

. School
- Stafford County Widewater 183-E 51-800-0004 ! Tidewater Community College Suffolk 183-F 51-800-0005 VA Tech Agricultural Research Suffolk Center 19-A6 51-161-1004 !Herman L. 

### Horn Elementary School Vinton

## VA SITE LISTING AQCR I-VII 2012VA DEQ, AQCR I SOUTHWEST VIRGINIA, 2010
POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITEI.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-035-0001 PM-10 SSIHIVOL 1/6 Population Neighborhood 5/28/89 SLAMS Carroll Co.- -80.8800 36.7025 (23-A) Gladeville Elem. School 51-197-0002 03 UVAbsorption Continuous Population Regional 4/1/90 SLAMS Rural Retreat - Wythe County -81.2550 36.8931 (16-B) Sewage Treatment Plant 51-520-0006 PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS Bristol- -82.1644 36.6078 (101-E) Highland View Elem. Sch. 51-027-0006 TSP- Lead Tisch HI VOL 1/6 Source-oriented Neighborhood 11/1/2010 SLAMS Buchanan Co.
- -82.0182 37.2475 (4-G) TSP Sampler VP-1 Upper Stock Pile area There are no collocated monitors in AQCR IVA CEQ, AQCR II VALLEY OF VIRGINIA, 2010
POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITEI.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-069-0010 03 UVAbsorption Continuous Population Urban 4/1/91 SLAMS Rest, Frederick County- -78.0814 39.2828 (28-J) PM2.5 FRM Sequential 1/3 Population Urban 1/1/08 SLAMS Lester Buildings PM2.5 TEOM Continuous Background Urban 1/1/08 SPM 51-113-0003 03 UV Absorption Continuous Background Regional Nat'l Park Madison County
- -78.4355 38.5227 (N-35-A) PM2.5 IMPROVE 1/3 Background Regional IMPROVE Shenandoah Nat'l Park PM2.5 TEOM Continuous Background Regional 5/04 Nat'l Park Big Meadows 51-139-0004 03 UVAbsorption Continuous Population Urban 7/21/99 SLAMS Page County
- -78.5047 38.6633 (29-D) PM2.5 FRM Sequential 1/3 Background Regional 10/00 SLAMS Luray Caverns Airport 51-161-1004 N02 Chemiluminescence Continuous Population Neighborhood 1/1/81 SLAMS Vinton - Roanoke Co. -79.8842 37.2856 (19-A6) 03 UVAbsorption Continuous Population Neighborhood 8/81 SLAMS Horn Elem. School S02 Fluorescence Continuous Population Neighborhood 1/29/87 SLAMS 51-163-0003 03 UVAbsorption Continuous Background Regional 4/8/99 SLAMS Rockbridge Co.
- -79.5131 37.6261 (21-C) PM2.5 IMPROVE Continuous Background Regional IMPROVE Natural Bridge Station 51-165-0003 S02 Fluorescence Continuous Population Neighborhood 9/22/97 SLAMS Rockingham Co.
- -78.8195 38.4775 (26-F) N02 Chemiluminescence Continuous Population Neighborhood 4/04 SLAMS VDOT PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/07 SLAMS 03 UVAbsorption Continuous Population Neighborhood 4/1/07 SLAMS 51-187-0004 PM-10 SSIHIVOL 1/6 Population Neighborhood 7/27/88 SLAMS Front Royal -Warren Co. -78.1983 38.9328 (30-E) Memorial Hospital 51-770-0011 PM-10 SSIHIVOL 1/6 Source Middle 5/9/88 SLAMS Roanoke- -79.9994 37.2758 (109-H) Lead TSP HI VOL 1/6 Source Middle 10/22/09 SLAMS Cherry Hill Subdivision 51-770-0015 

## co Gas Filter Corr. Continuous Population Neighborhood 4/04 SLAMS Roanoke- -79.9557 37.2972 (109-M) PM2.5 TEOM Continuous Population Neighborhood 4/04 SPM Round Hill Elem. Sch. PM2.5 FRM Sequential Daily Population Neighborhood 1/1/07 SLAMS 51-775-0011 PM2.5 Sequential 1/3 Population Neighborhood 9/8/09 SLAMS Salem- -80.0810 37.2979 (110-C) Salem High School 51-840-0002 PM-10 SSIHIVOL 1/6 Population Neighborhood 9/13/89 SLAMS Winchester - -78.1631 39.1856 (134-C) Courts Bldg. There are no collocated monitors in AQCR IIVA DEQ, AQCR Ill CENTRAL VIRGINIA, 2010 POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITEI.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-680-0015 PM2.5 FRM Sequential 1/3 Population Neighborhood 4/1/03 SLAMS Lynchburg- -79.2148 37.3318 (155-Q) WaterTank 51-009-0007 TSP-Lead Tisch Hi-Vol 1/6 Source Neighborhood 11/1/10 SLAMS Madison -79.1003 37.4002 (53-G) TSP Sampler Oriented Heights Amherst Co. There is one collocated monitor in AQCR3. A collocated Hi-Vol TSP-Iead monitor is located at 53-G Madison Heights and is designated H-53-G.VA DEQ, AQCR IV NORTHEAST VIRGINIA, 2010
POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITE I.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-033-0001 03 UVAbsorption Continuous Background Regional 4/1/93 PAMS Caroline Co.
- -77.3772 38.2031 (48-A) VOCs Auto-GC Daily - Summer Background Neighborhood 6/1/02 PAMS USGS Geomagnetic VOC-PAM T0-12 1/6 Background Regional 6/1/93 PAMS Center NOy Chemiluminescence Continuous Background Regional 7/22/96 PAMS 51-047-0002 PM-10 SSI HI VOL 1/6 Population Neighborhood 4/24/92 SLAMS Culpeper- -78.0111 38.4572 (42-B) Farmington Elem. School 51-061-0002 03 UVAbsorption Continuous Background Regional 9/1/81 SLAMS Fauquier Co.
- -77.7678 38.4750 (37-B) Phelps Wildlife Area 51-179-0001 03 UVAbsorption Continuous Population Neighborhood 9/1/92 SLAMS Stafford Co.
- -77.3703 38.4831 (44-A) Widewater Elem. School 51-003-0001 03 UVAbsorption Continuous Population Regional 4/1/08 SLAMS Albemarle Co.
- -78.4973 38.0426 33-A PM2.5 FRM Sequential 1/3 Population Neighborhood 4/1/08 SLAMS Albemarle High PM2.5 TEOM Continuous Background Neighborhood 4/1/08 SPM School 51-630-0004 PM-10 SSI HI VOL 1/6 Population Neighborhood 11/12/89 SLAMS Fredericksburg - -77.4864 38.3047 (130-E) Mercer Elem. School There are no collocated monitors in AQCR IVVA DEQ, AQCR V STATE CAPITOL, 2010
SITEI.D. POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITEI.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-036-0002 03 UVAbsorption Continuous Population Neighborhood 3/29/88 SLAMS Charles City Co.
- -77.2608 37.3419 (75-B) S02 Pulsed Fluorescence Continuous Highest Neighborhood 1/1/92 SLAMS Route#608 Concentration Shirley Plantation N02 Chemiluminescence Continuous Population Neighborhood 3/9/93 SLAMS PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS
51-041-0003 PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS Chesterfield Co.
- -77.4508 37.4361 (71-D) BensleyArmory 51-041-0004 03 UVAbsorption Continuous Population Neighborhood 4/80 SLAMS Chesterfield Co.
- -77.5936 37.3589 (71-H) Beach Rd. VDOT 51-085-0003 03 UVAbsorption Continuous Highest Urban 4/1/01 SLAMS Hanover Co.
- -77.2188 37.6061 (73-E) Concentration McClellan Road 51-087-0014 03 UV Absorption Continuous Population Neighborhood 6/12/81 SLAMS Henrico Co.
- -77.4003 37.5583 (72-M) PM2.5 FRM Sequential Daily Population Neighborhood 1/1/99 SLAMS MathScience Center PM-10 SSIHIVOL 1/6 Population Neighborhood 11/1/08 SLAMS PM2.5 TEOM Continuous Population Neighborhood 7118/00 SPM PM2.5 Speciation 1/3 Mini-Trends Population Neighborhood 1/1/04 SPM PM10 Sequential 1/3 Population Neighborhood 10/8/09 NCore Metals PM-10 LO VOL 1/6 Background Neighborhood 11/1/08 NATTS/SPM Metals TSPIICPMS 1/6 Background Neighborhood 11/1/08 NATTS/SPM Lead TSPIICPMS 1/6 Background Neighborhood 11/1/08 NCore Carbonyl T0-11A 1/6 Background Neighborhood 11/1/08 NATTS

VOCs T0-15 1/6 Background Neighborhood 11/1/08 NATTS PAH TSP 1/6 Background Neighborhood 11/1/08 NATTS Hexavalent Chromium TSP LOVOL 1/6 Background Neighborhood 11/1/08 NATTS NOy Chemiluminescence Continuous Population Neighborhood 5/1/05 NCore N02 Trace Chemiluminescence Continuous Population Neighborhood 5/1/05 NCore Meteorological Wind Speed,**Humidit~** Continuous Population Neighborhood 7/1/10 NCore Instrumentation Temp., Wind direction Barometric Pressure 51-087-0015 PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS Henrico Co.
- -77.5675 37.6703 (72-N) Piedmont DEQ 51-101-0003 PM-10 SSIHIVOL 1/6 Population Neighborhood 1/11/90 SLAMS West Point- -76.7953 37.5594 (82-C) Elementary School 51-670-0010 PM-10 PM10 SSI HI VOL 1/6 Population Neighborhood 11/1/08 SLAMS Hopewell- -77.2901 37.2906 (154-M) Metals PM10 SSI HI VOL 1/6 Population Neighborhood 11/1/08 SLAMS Hopewell Toxics Study, Metals TSP/ICPMS 1/6 Population Neighborhood 11/1/08 Urban Toxics Carter G. Woodson VOCs T0-15 1/6 Population Neighborhood 11/1/08 Urban Toxics Middle School Carbonyl T0-11 1/6 Population Neighborhood 11/1/08 Urban Toxics

PAH TSP 1/6 Background Neighborhood 11/1/08 SPM 51-760-0024 

### co Gas Filter Correlation Continuous Population Neighborhood 2/13/98 SLAMS Richmond- -77.4653 37.5628 (158-W) S02 Pulsed Fluorescence Continuous Population Neighborhood 2/13/98 SLAMS Science Museum, N02 Chemiluminescence Continuous Population Neighborhood 2/13/98 SLAMS Broad Street There are 2 collocated monitor in AQCR V. At Station 72-M, 510870014- collocated PM2.5 FRM, and Station 154-M collocated Hi Vol PM10VA DEQ, AQCR VI HAMPTON ROADS, 2010
POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITEI.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-650-0008 S02 Fluorescence Continuous Population Neighborhood 7/1/10 SLAMS Hampton -76.3869 37.1036 (179-K) 03 UVAbsorption Continuous Population Neighborhood 7/1/10 SLAMS NASA Langley PM2.5 FRM Sequential 1/3 Population Neighborhood 7/1/10 SLAMS CAPABLE Site PM2.5 TEOM Continuous Population Neighborhood 7/1/10 SPM



## co Gas Filter Corr. Continuous Population Neighborhood 7/1/10 SLAMS PM10 SSI HI VOL 1/6 Population Neighborhood 7/1/10 SLAMS N02 Chemiluminescence Continuous Population Neighborhood 7/1/10 SLAMS 51-710-0024 PM10 SSIHIVOL 1/6 Population Neighborhood 6/21/97 SLAMS Norfolk- -76.3017 36.8578 (181-A1) PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS NOAA Storage N02 Chemiluminescence Continuous Population Neighborhood 1/7/10 SLAMS Facility 

## co Gas Filter Corr. Continuous Population Neighborhood 12/22/09 SLAMS S02 Pulsed Fluorescence Continuous Population Neighborhood 1/7/10 SLAMS 51-800-0004 03 UVAbsorption Continuous Population Neighborhood 4/1/87 SLAMS Suffolk- -76.4386 36.9033 (183-E) Tidewater Community College 51-800-0005 03 UVAbsorption Continuous Population Neighborhood 4/1/91 SLAMS Suffolk- -76.7314 36.6675 (183-F) Tidewater Research Station, Holland 51-810-0008 PM2.5 FRM Sequential Daily Population Neighborhood 1/1/99 SLAMS VA Beach- -76.1814 36.8411 (184-J) 

## voc T0-15 1/6 Background Neighborhood 7/1/05 Urban Toxics VA Beach DEQ Office Carbonyl T0-11A 1/6 Background Neighborhood 7/1/05 Urban Toxics

Metals TSP 1/6 Background Neighborhood 8/2/05 Urban Toxics

There are two collocated monitors in AQCR VI. Collocated PM10 and PM2.5 FRM are both at 181-A1, 517100024, the NOAA Storage Facility in Norfolk.VA DEQ, AQCR VII NORTHERN VIRGINIA, 2010
POLLUTANT METHOD OR SAMPLING MONITORING BEGINNING MONITOR SITE I.D. MEASURED INSTRUMENT INTERVAL OBJECTIVE SCALE DATE TYPE LOCATION LONGITUDE LATITUDE 51-013-0020 03 UV Absorption Continuous Population Neighborhood 8/1/79 SLAMS Arlington- -77.0592 38.8575 (47-T) N02 Chemiluminescence Continuous Population Neighborhood 8/1/79 SLAMS Aurora Hills 

### co Gas Filter Correlation Continuous Population Neighborhood 4/1/81 SLAMS Visitors Center PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS 51-059-0030 03 UVAbsorption Continuous Population Neighborhood 7/1/98 SLAMS Fairfax- -77.1056 38.7728 (46-89) 

### voc T0-15 1/6 Population Neighborhood 6/1/02 Urban Toxics Lee District Carbonyl T0-11A 1/6 Population Neighborhood 6/1/02 Urban Toxics

Metals TSP 1/6 Population Neighborhood 6/1/02 Urban Toxics PM2.5 FRM Sequential Daily Population Neighborhood 1/1/99 SLAMS 51-107-1005 03 UVAbsorption Continuous Population Neighborhood 4/4/98 SLAMS Loudoun Co.
- -77.4900 39.0244 (38-1) N02 Chemiluminescence Continuous Population Neighborhood 4/4/98 SLAMS Broad Run H.S. PM2.5 FRM Sequential 1/3 Population Neighborhood 1/1/99 SLAMS 51-153-0009 03 UV Absorption Continuous Population Urban 4/1/91 SLAMS Prince Wm. Co.
- -77.6356 38.8553 (45-L) N02 Chemiluminescence Continuous Population Urban 4/1/94 SLAMS Long Park 51-510-0009 S02 Pulsed Fluorescence Continuous Population Neighborhood 10/69 SLAMS Alexandria, -77.0447 38.8108 (L-126-C) 03 UVAbsorption Continuous Population Neighborhood 10/69 SLAMS 517 N. Saint N02 Chemiluminescence Continuous Population Neighborhood 10/69 SLAMS Asaph St. 

### co Gas Filter Correlation Continuous Population Neighborhood 12/6/72 SLAMS PM10 SSIHIVOL 1/6 Population Neighborhood 10/4/01 SLAMS 51-510-0020 PM10 SSI HI VOL 1/3 Source Middle Scale 6/4/06 SLAMS Alexandria - -77.1268 38.8050 (L-126-H) Tucker Elem. Sch.
There are 3 collocated monitors in AQCR VII. A collocated PM2.5 FRM is located at Station 47-T, 510130020, Aurora Hills Visitor Center, Arlington

## VA AIR MONITORING NETWORK MAPS 2012

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY 

# Regional Offices

BLUE RIDGE REGIONAL OFFICE Director- RobertWeld RoanokeOffice 3019Peters CreekRoad Roanoke,Virginia24019 (540) 562-6700 VALLE'/ REGIONAL OFFICE Director- Amy T
. Owens 4411 Early Road P
.O. Box 3000 Harrisonburg,Virginia22801 (540) 574-7800

SOUTHWEST REG IONAL OFFICE Director- Dallas Sizemore 355 DeadmoreSt. BLUE RIDGE REGIONAL OFFICE Director- RobertWeld

LynchburgOffice P
.O
.Box 1688 Abingdon,Virginia24212 (276) 676-4800 7705TimberlakeRoad Lynchburg,Virginia24502 (434) 582-5120 PIEDMONT REG IONAL OFFICE Director- MikeMurphy

4949-ACoxRoad Glen Allen,Virginia23060 (804) 527-5020 NORTH ERN REG IONAL OFFICE Director- TomFaha 13901 Crown Court Woodbridge,Virginia22193 (703) 583-3800

TIDEWATER REG IONAL OFFICE Director- MariaNold 5636SouthernBlvd. VirginiaBeach,Virginia23462 {757) 518-2000

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY 

# Ozone Monitoring Sites 

# 2012

+ VA Department of Environmental Quality National Park Service

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY
Carbon Monoxide

Monitoring Sites 

# 2012



# + VA Departmentof Environmental Quality

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY Nitrogen Dioxide Monitoring Sites 

# 2012

+ VA Department of Environmental Quality

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY Sulfur Dioxide Monitoring Sites 

# 2012



# + VA Departmentof Environmental Quality

# ~

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY


# PM2.5 Monitoring Sites 2012

FRM Mass Sampler FRM Mass and TEOM Samplers 

# +IMPROVE sampler 

# 0 FRM Mass, Speciation, TEOM Sampler 

# * TEOM 

## &IMPROVE sampler, Big Meadows, NPS

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY


# PMlO Monitoring Sites 

# 2012

+ VA Departmentof Environmental Quality

# VIRGINIADEPARTMENT OFENVIRONMENTAL QUALITY


# Lead Monitoring Sites 

# 2012

+ VA Department of Environmental Quality