UNITEDSTATESENVIRONMENTALPROTECTIONAGENCYREGION4Ms.MyraReeceChiefBureauofAirQualityControl.ATLANTAFEDERALCENTER61FORSYTHSTREETATLANTA,GEORGIA30303-8960NOV192015SouthCarolinaDepartmentofHealthandEnvironmentalControl2600BullStreetColumbia,SouthCarolina29201DearMs.Reece:ThankyouforsubmittingthestateofSouthCarolina's2015annualambientairmonitoringnetworkplan(NetworkPlan)datedJuly20,2015.TheNetworkPlanisrequiredby40CodeofFederalRegulations(CFR)§58.10.TheU.S.EnvironmentalProtectionAgencyRegion4understandsthattheSouthCarolinaDepartmentofHealthandEnvironmentalControl(SCDHEC)providedthepublica30-dayreviewperiodforitsdraftNetworkPlan.CommentsonthedraftplanweresubmittedbythreestakeholdersandthefinalNetworkPlanincludestheSCDHECresponsetothesecomments.Withthisletter,theEPARegion4isapprovingtheNetworkPlanwiththefollowingexceptions:1.TheEPAdoesnotapprovetheproposeddiscontinuationoftheozone(OJ)monitorattheClemsonsite(AQSID45-072-0002)intheGreenville-Anderson-MauldinMetropolitanStatisticalArea(MSA).AtthistimetheinformationprovideddoesnotadequatelysupportthattheClemsonmonitorisduplicative.InitsNetworkPlan,SCDHECindicatedthatadditionalinformationonitshutdownrequestwouldbeprovidedin itsmonitoringnetworkassessmentdocument;howevertheassessmenthasnotyetbeensubmitted.Whenitissubmitted,theEPAwillreconsideritspositionontherequestanddiscussitwithSCDHECstaff.Themonitoringnetworkassessmentisrequiredby40CFR58.10(d).Welookforwardtoreceivingtheadditionalinformationforfurtherreviewandconsideration.PleasenotethattheEPAiswillingtoconsiderthediscontinuationofadifferent,lowervalueozonemonitoringsite(s)inthisMSA.2.An03monitoringsitemustbeestablishedandapprovedbytheEPAintheMyrtleBeachConway-NorthMyrtleBeach,SC-NCMSAbythebeginningofthe201603monitoringseason.The2015NetworkPlanidentifiesasitename(CoastalCarolina),location,andAQSID(45-051-0008)forthissite;however,insufficientinformationwasprovidedfortheEPAtoapprovethislocation.TheEPArequeststhatSCDHECsubmitaNetworkPlanaddendumwithacompletesiteproposalcontaining,atminimum,theinformationrequiredby40CFR§58.10(b).Inadditiontotheinformationonthenewsite,thisaddendummayalsoincludeaformalproposaltorelocatetheYork(AQSID45-091-0006)ozonemonitor.Bythisletter,theEPAisapprovingatemporaryshutdownforthismonitorin2016whileSCDHECrelocatesthemonitoringsite.AsaInternetAddress(URL)•http://wwwepa.govRecycled/Recyclable•PrinledwithVegetableOilBasedInksonRecycledPaper(Minimum30%Postconsumer)reminder , every addendum to the Network P l an must undergo a public inspection process before

being submitted to the EPA.

3. Monitor siting criteria, as described in 40 CFR Part 58, Appendix E m u st be evaluated and met a t

each site operating a regulatory mon i tor. Ideally, each site in the monitoring network should be

evaluated annually for compliance with Appendix E siting criteria . The EPA Science and

Ecosystem Support Division found SC DHEC monitoring si tes which were not meeting

regulatory monitor siting criteria in its July 2015 technical system s audi t of the SC DHEC air

monitoring program. The EPA requests that SC DHEC s ubmit documenta ti on of monitor siting

evaluations, determinations, and corrective actions for all of its reg u latory monitoring sites in the

next annual Network Plan .

Details regarding the EPA's review o f the Network Plan are provided in the enclosed comments.

Thank you for working with us to monitor air poll u tion and promote healthy air quality in South

Carolina. If you have any questions or concerns, please contact Gregg Worley at (404) 562-9141 or

Ryan Brown at (404) 562-9147 . Sincerely,

0. everly H. Banister -'1n

Director . U

Air, Pesticides and Toxics Management Division

Enclosure

cc: Mr. Robert Brown

Division Director, Air Planning Development and Outreach, SC DHEC

Mr. Scott Reynolds

Director, Division of Air Quality Analysis, SC DHEC

Mr. Thomas Flynn Manager, Air Data Analysis and Support Section , SC DHEC

The Honorable William Harr i s

Chief of the Catawba Indian Nation

Mr. Darin Steen Director, Environmen t al Services , Catawba Indian NationCY 2015

State

of South Carolina

Ambient

Air Monitoring

Network

Plan The

U.S. EPA Region

4 Comments

and Recommendations This document

contains

the U.S.

EPA Region

4 comments

and recommendations

regarding

the state

of South Carolina's

2015 ambient

air monitoring

network

plan (Network

Plan). Ambient

air monitoring rules, which include regulatory requirements

that address network

plans,

data certification,

and minimum monitoring requirements,

among

other requirements,

are found

in 40 CFR

Part

58

. Minimum monitoring requirements

for criteria pollutants

are listed

in

40 CFR

Part

58, Appendix

D. Minimum monitoring requirements

are listed

for ozone

(0

3 ), particulate

matter

less than

2.5 microns

(PM2.s), particulate

matter

less

than

10 microns

(PM1

o ), nitrogen

dioxide

(N02),

sulfur dioxide

(S02), carbon monoxide

(CO),

and

lead

(Pb

)

. The minimum monitoring requirements

are based

on core based statistical

area (CBSA) boundaries

as defined

by

the U.S. Office

of Management

and Budget (OMB),

July

1, 2014, population

estimates

from the

U.S

. Census

Bureau,

and historical

ambient

air monitoring

data

. Minimum monitoring requirements for

OJ, PM2

. s, and PM1o

only apply

to metropolitan

statistical

areas (MSAs)

which

are

a subset

of CBSAs.

OMB currently

defines

10 MSAs

in the state

of South Carolina.

These

MSAs

and

the respective July

1, 2014, population

estimates

from

the

U

. S

. Census

Bureau

are shown

in Table

1. Table

I: Metropolitan

Statistical

Areas

and Populations MSAName

Population

u Charlotte-Gastonia-Concord

NC-SC

2,380,314 Greenville-Anderson-Mauldin,

SC

850,965 Columbia,

SC

800,495 Charleston-North Charleston-Summerville,

SC

727,689 Au

g usta-Richmond

Coun

ty. GA

- SC

. 583,632 M yrt

le Beach-Conwa

y -North

M yrt

le Beach,

SC-NC

417,668 Spartanburg,

SC

321,418 Florence,

SC

207,030 Hilton

Head Island-Bluffton-Beaufort,

SC

203,022 Sumter,

SC

107

, 919 Proposed Monitoring

Network

Changes The EPA's rationale

for approval

or disapproval

of specific

network

changes

can

be found

below

in the pollutant

sections

of this document.

Monitors

proposed

for discontinuation

and

the EPA's determination are summarized

in Table

2. Table

2: Monitors

Proposed

for Discontinuation AQSID

Site Name

Pollutant

Tipe

Comments 45-072-0002

Clemson

o

,

SLAMS

Not

A J!E roved Temporary

shutdown 45-091-0006

YorkCMS

O

J

SLAMS

approved

for

20

16, will

be relocated

in 2017 45-045-0015

Greenville

ESC

PM

1.

' speciat

i on

SPM

Shutdown.

No longer funded b the EPAThe Network Plan also mentioned relocation or possible relocation of the monitors summarized in Tab t e

3. For EPA to approve any of these relocations , SC DHEC must submit these requests in a future

Network Plan or as part of a Network Plan addendum with all the requisite inform a tion requ i r e d by 40

CFR §58.10(b) .

Table 3: Monitors Proposed for Relocation or Possible Relocation

AQSID Site Name

45-091-0006 York

45-015-0002 Bushy Park Pump Station

45-063-0008 Operating Schedules

40 CFR § 58 . 12 lrmo Pollutant

o , PM: u / other Type SLAMS Comments

Will be relocated i n 2017. SC

DEHC must submit a site relocation

request as part of the next Network

Plan or a Network Plan addendum.

SLAMS Possible relocation - tree encroachment

SLAMS / other Possible relocation - possible

changes in property use by land

owner

The monitoring network proposed in the Network Plan meets the required oper ati ng schedules for all

continuous analyzers and all manual Pb, PM10, PM H. and PM2.s Speciation Trends Network (STN)

monitors. SC DHEC has not proposed any changes to its operating schedules in the Network Plan.

Air Quality Index (AQI) Reporting

40 CFR §58.50

AQI reporting is required in MSAs with populations over 350,000 . There are four MSAs in the state of

South Carolina required to report an AQI : Greenville-Anderson-Mauldin , Columbia, Charleston-North

Charleston , and Myrt l e Beach-Conway-North Myrtle Beach, SC-NC MSAs. The Network Plan indicates

that the daily AQI for all of these areas except the Myrtle Beach-Conway-North Myrtle Beach , SC-NC

MSA is available o n the EPA' s AIRNow web site. Once an OJ monitoring site is approved and

operating in this MSA in order to satisfy the m i nimum requirements in 40 CFR Part 58, AQI reporting

should also be provided for the Myrtle Beach-Conway-North Myrtle Beach, SC-NC MSA.

National Core {NCore) Monitodng Network

40 CFR Part 58, Appendix D, 3

A requirement that each state operate at least one NCore site is found in 40 CFR Part 58, Appendix D , 3 .

The state's approved NCore site i s located in Columbia at the Parklane site (AQS ID 45-079-00047) and

the SC DHEC has not proposed any changes for the site in its Network Plan.

OJ Monitoring Requirements

40 CFR Part 58, Appendix D, Table D-2

The Network Plan includes a proposal to discontinue OJ monitoring at the Clemson site (AQS ID 45-

072-0002). The EPA does not approve this proposal at this time. The Network Plan stated that the

Clemson site i s duplicative, but no information justifying that position was included. The SC DI-IEC

indicated in the Network Plan that additional rationale for discontinuing this site would be contained in

the SC DHEC monitoring network assessment document. However , the SC DHEC has not yet submittedtheassessmenttotheEPA.Thus,theinfonnationprovidedtoEPAdoesnotadequatelysupportthepositionthattheClemsonmonitorisduplicative.Theavailabledatashowthatpeakandaverage03concentrationsareconsistentlyhigherattheClemsonsitethan theyareatothersitesintheGreenvillearea.FortyCFRPart58,AppendixD,4.l(b)requiresthat"WithinanOJnetwork,atleastone03siteforeachMSA,orCSAifmultipleMSAsareinvolved,mustbedesignedtorecordthemaximumconcentrationforthatparticularmetropolitanarea."BasedonEPA'sanalysisofthedata,theClemsonsiteisrequiredasthemaximumconcentrationsiteintheMSA.Also,theClemsonsiteisrepresentativeofamoredenselypopulatedareathanothersitesintheGreenvillearea.Welookforwardtoreceivingtheadditionalinfonnationforfurtherreviewandconsideration.Pleasenotethat,theSCDHECiscurrentlyoperatingfiveQ3monitorsinthisMSAwheretwoarerequiredataminimum.TheEPAiswillingtoconsiderarequesttoshutdownothersite(s)intheMSAthatareoflowervaluethantheClemsonsite.DuetochangesthatOMBmadetoMSAboundariesinFebruaryof2013,BrunswickCounty,NorthCarolinahasbeenaddedtotheMyrtleBeach-Conway-NorthMyrtleBeach,SC-NCMSA.Thischangetriggeredtherequirementforan03monitorintheMSAbasedonthepopulationinthenewMSA.The2015NetworkPlanidentifiesasitename(CoastalCarolina),location,andAQSID(45-051-0008)forthismonitor,howeverinsufficientinfonnationwasprovidedfortheEPAtoapprovethislocation.TheEPArequeststhatSCDHECsubmitaNetworkPlanaddendumwithacompletesiteproposalwithalltherequisiteinfonnationrequiredby40CFR§58.1O(b).ThisaddendummustundergoapublicinspectionprocessbeforebeingsubmittedtotheEPA.TheNetworkPlanalsoincludesaproposaltotemporarilydiscontinue03monitoringattheYorkCMSsite(AQSID45-091-0006)forthe201603seasonandthatthissitewillberelocatedtoanearbylocation.TheYorkmonitorisanupwindsitefortheCharlotte-Concord-GastoniaNC-SCMSAandtypicallyreadslowerthantheother03monitorsintheMSA.TheEPAapprovesthetemporaryshutdownoftheYorkmonitorfor2016.OnceSCDHEChasidentifiedasuitablereplacementsitefortheYorkmonitor,theEPArequeststhatSCDHECsubmitaNetworkPlanaddendumwithacompletesiteproposalincludingalltherequisiteinfonnationrequiredby40CFR§58.10(b).ThisaddendummustundergoapublicinspectionprocessbeforebeingsubmittedtotheEPA.WiththeexceptionoftheMyrtleBeach-Conway-NorthMyrtleBeach,SC-NCMSA,theEPAhasdetenninedthatthe03monitoringnetworkoutlinedintheNetworkPlanmeetstheminimumrequirementsfoundin40CFRPart58,AppendixD,TableD-2fortheotherMSAsinSouthCarolina.S02MonitoringRequirements40CFRPart58,AppendixD,4.4Ambientairmonitoringnetworkdesigncriteria forS02arefoundinSection4.4of40CFRPart58,AppendixD.Thissectionrequiresthat"Thepopulationweightedemissionsindex(PWEI)shallbecalculatedbystatesforeachcore-basedstatisticalarea(CBSA)..."Asaresult,theSOzmonitoringsite(s)requiredineachCBSAwillsatisfyminimummonitoringrequirementsifthemonitor(s)issitedwithintheboundariesoftheparentCBSAandisofthefollowingsitetypes:populationexposure,maximumconcentration,source-oriented,generalbackground,orregionaltransport.AnSOzmonitoratanNCorestationmaysatisfyminimummonitoringrequirementsifthatmonitorislocatedwithinaCBSAwithminimallyrequiredmonitorsconsistentwithAppendixD,Section4.4.BaseduponPWEis3calculated using the latest population estimates and emission inventory data , the minimum number of

mon i tors required for the CBSAs in South Carolina is summarized in Table 4.

Table 4: SO : Monitoring System Status

CBSAName

Au g usta-Richmond Coun ry, GA-SC

Charleston-North Ch a rleston - Summerville , SC Charlotte-Gastonia-Concord NC - SC

Columbia, SC Greenville-Anderso n -Ma u ldin, SC SLAMS Required SLAMS Present

Based upon the information summarized in Table 4, the S0 2 monitoring network outlined in the

Network Plan meets the S02 PWEI requirements specified in 4 0 CFR Part 58 , Appendix D, Section 4.4.

The EPA finalized the S02 Data Requirements Rule (ORR) (see 80 F e deral Regist e r, No. 162) on

August 21 , 2015. This rule will require characterization of the air quality near sources with S02

emissions greater than 2,000 tons per year by conducting ambient air monitoring or modeling. We

encourage SC DHEC to begin having conversat i ons with affected sources in the state to determine an

agreed upon approach for meeting the ORR requ i rements . By January 15 , 2016 , SC DHEC must submit

a final list to the EPA Region 4 identifying the sources around which SOz air pollution must be

characterized. For sources that SC DHEC dec i des to evaluate using ambient a i r monitoring, new site

proposals must be included in the 2016 Network Plan. The location ofthese mon i toring sites should be

selected using the process out li ned in the S02 NAAQS Designations Source-Oriented Monitoring

Technical Assistance Document 1 •

N02 Monitoring Requirements

40 CFR Part 58, Appendix D, 4.3

Ambient air monitoring netwo r k design criteria for NOz are found in 40 CFR Part 58, Appendix D , 4.3.

There are three typ e s of required N02 monitoring : near - road, area - wide , and Regional Administrator

required . These types ofN0 2 monitoring are described in Sections 4.3 . 2, 4.3.3 and 4.3.4 , respectivel y .

Ambient air monitoring design criteria for near-road N02 monitoring sites are found in 40 CFR Part 5 8,

Appendix D , 4 . 3 . 2 . The require m ent for near-road monitoring in the Charlotte-Gastonia-Concord NCSC CBSA will be met us i ng the Remount site (AQS ID 37-119-0045) operated by Mecklenburg

County's Land Use and Environmental Services Agency (MCLUESA) in Charlotte, North Carolina . No

other CBSA in South Carolina is currently required to have near-road N02 monitoring. By January J,

2017 , South Carolina CBSA's with populations over 500 , 000 will be required to operate near-road N02

monitoring . South Carolina has four CBSAs in t his range : Greenville-Anderson-Mauldin, SC;

Columbia, SC; Charleston-North Charleston-Summerville , SC, and Augusta-Richmond County, GA-SC.

As a result of the 5-year NAAQS review cycle, the N0 2 monitoring requirements may be modified i n

2016 . The N02 near - road monitoring requirements may change for CBS As with populations between

500 , 000 and 1 , 000,000 peop l e, such as the South Carolina CBSAs listed above .

1 S0 2 NAAQS Designat i ons Sou r c e -Oriented Monitoring Technical A s s i stance Document. U . S. EPA Office of Ai r Quality

Plan n i ng and Standards Air Q u ality Assessme n t D i v i sion , Draft December 20 1 3 .

btm : // www3 .e p a. g. ov / air g ual i ty / su lfurdjoxide ! pdfs / S02 Monitorin g. TAD .p df

4Ambientairmonitoringnetworkdesigncriteriaforarea-wideN02sitesarefoundinSection4.3.3ofAppendixDto40CFRPart58.TheGaringerHighSchool(AQSID37-119-0041)currentlyoperatedbyMCLUESAwillbeusedforfulfillingthearea-wideNOzmonitoringrequirementfortheCharlotteGastonia-ConcordNC-SCCBSA.NootherCBSAinSouthCarolinaisrequiredtohavearea-wideN02monitoring.AmbientairmonitoringnetworkdesigncriteriaforRegionalAdministratorrequiredN02monitoring,oftenreferredtoasRA-40monitoring,arefoundin40CFRPart58,AppendixD,4.3.4.Undertheseprovisions,RegionalAdministratorsmustrequireaminimumoffortyadditionalN02monitoringstationsnationwide,withaprimaryfocusonsitingthesemonitorsinlocationstoprotectsusceptibleandvulnerablepopulations.Previously,Region4selectedtheGreenvilleESCsite(AQSID450-045-0015)asalocationforanRA-40NOzmonitoringsite.ThefulllistofNOzmonitorsidentifiedbyEPA'sRegionalAdministratorscanbefoundonEPA'swebsiteathttt>://www.epa.gov/ttnamtillsvoop.html.PbMonitoringRequirements40CFRPart58,AppendixD,4.540CFRPart58,AppendixD,4.5requiresthat"Ataminimum,theremustbeonesource-orientedSLAMS[StateandLocalAirMonitoringStation]sitelocatedtomeasurethemaximumPbconcentrationinambientairresultingfromeachnon-airportPbsourcewhichemits0.50ormoretonsperyearandfromeachairportwhichemits1.0ormoretonsperyear..."AlthoughSCDEChasnosourcesthatexceedthethresholdsforPbmonitoring,theJohnsonControlBatteryGroupconductssource-basedambientPbmonitoringatthreesitesaroundtheFlorenceRecyclingCenterinFlorence,SouthCarolina.Thecompanyisconductingthismonitoringundertermsofasettlementagreementreachedwithseveralpetitionerswhocommentedontheconstructionpermitforthefacility.Locationsforthemonitoringsiteswereselectedbaseduponanagreementbetweenthecompanyandthestakeholders.FortyCFRPart58,AppendixD,3(b)requiresthat"NCoresitesinCBSAswithapopulationof500,000people(asdeterminedinthelatestCensus)orgreatershallalsomeasurePheitherasPh-TSPorPbPM!o."TheNetworkPlanindicatesthataPbsamplerislocatedattheParklaneNCoresite(AQSID45-079-0007).ThePbmonitoringnetworkdescribedintheNetworkPlanmeetsallofthedesigncriteriaof40CFRPart58.PMtoMonitoringRequirements40CFRPart58,AppendixA,3.3.140CFRPart58,AppendixD,TableD-4Region4hasdetermined thatthePM1omonitoringnetworkoutlinedintheNetworkPlanmeetsorexceedstheminimumrequirementsfoundin40CFRPart58,AppendixD,TableD-4forallMSAs.Also,allmanualPM10collocationrequirementsaremet.5PMz.s Monitoring Requirements

40 CFR Part 58, Appendix A, 3.2.5

40 CFR Part 58, Appendix D, Table D-5

The EPA has determined that the PM2 . s monitoring network outlined in the Network Plan meets or

exceeds the minimum requirements found i n 40 CFR Part 58, Appendix D, Table D-5 for all MSAs.

Also, all PM2 s collocation requirements are me t.

PMz.s Continuous Monitoring Requirements

40 CFR Part 58, Appendix D, 4.7.2

Regulatory provisions for continuous PM2 s monitoring r equire that "The State, or where appropriate,

local agencies must operate continuous PM2 . s analyzers e q ual to at least one-half(round up) of the

minimum required sites listed in Table D-5 of this Appendix . At least one required continuous analyzer

in each MSA must be collocated with one of the requ i red FRM/FEM/AR.¥ [Federal Reference

Method/Federal Equivalent Method/Approved Regional Method] monitors, unless at least one of the

required FRM/FEM/ A RM monitors is itself a continuous FEM or ARM monitor in which case no

collocat i on requirement applies." After review of the Network Plan, the EPA has determined that the

proposed PM2 . s continuous monitoring network meets or exceeds the minimum requirements in all of

the MSAs in the state . Also, the continuous PM2 . s collocat i on requirements are met in all MSAs.

PMz.s Background and Transport Sites

40 CFR Part 58, Appendix D, 4.7.3

Forty CFR Part 58 , Appendix D , 4 . 7.3 requires that "Each State shall install and operate a t least one

PM2 s site to monitor for regional background levels an d at least one PM2 . s s i te to m onitor for regiona l

transport. " The Network Plan ident i fies Ashton (AQS ID 45-029 - 0002) i n Colleton County as a reg i ona l

background site and Chesterfield (AQS ID 45-025 - 000 1 ) i n Chesterfield County as a regiona l transport

site. Therefore, the SC DHEC has satisfied the requirements of 40 CFR Part 58 for regiona l backgro u nd

and transport sites .

PM2 . s Chemical Speciation Network (CSN)

40 CFR Part 58, Appendix D, 4 . 7 . 4

The EPA conducted an assessment of the CSN i n an effort to optimize the network and create a network

that is sustainable going forward. As a resu l t of th is assessment, the EPA de funded a number of

monitoring sites, eliminated the C S N PM2 s mass measurement, reduced the frequency of carbon blanks,

reduced sample frequency at mon i toring sites, and reduced the number of icepacks in shipments during

the cooler months of the year.

The EPA defunded two CSN monitors at sites in South Caro li na : Chesterfield (AQS I D 45-025-0001)

and Greenville ESC (AQS ID 45-045-0015). The Network Plan indicate s that the Chesterfield CSN

monitor has been discontinued d u e to lack of EPA funding and the Gre e nville ESC speciation mon i tor

will continue to operate with state fund i ng. 6PhotochemicalAssessmentMonitoringStation(PAMS)40CFRPart58,AppendixD,5.0WiththerecentpassageofanewozoneNAAQSonOctober1,2015,theEPAalsofinalizedchangestoPAMS.ByJune1,2019,theNCoresiteinColumbiawillberequiredtoimplementPAMSmonitoring.TheEPArealizesthereareseveralimplementationchallengestoworkthroughandiscommittedtoworkingcloselywithSCDHECtoidentifyefficienciesandminimizetheburdenofimplementingthisnewmonitoringprogram.However,atthistimethePAMSrequirementisbeingmetbythestate.MonitoringSitingCriteria40CFRPart58,AppendixEMonitorsitingcriteria,asdescribedin40CFRPart58,AppendixE,mustbemetandcontinuallyevaluatedateachsiteoperatingaregulatorymonitor.Ideally,eachsiteinthemonitoringnetworkshouldbeevaluatedannuallyforcompliancewithregulatorysitingcriteria.TheEPAScienceandEcosystemSupportDivision(SESD)foundmanyoftheSCDHECmonitoringsiteswerenotmeetingregulatorymonitorsitingcriteriaintheJuly2015technicalsystemsaudit(TSA)oftheSCDHECairmonitoringprogram.ThefinalTSAreport,datedNovember17,2015,describesthisauditfindingingreaterdetail.TheSCDHECwasprovidedanopportunitytocommentonthedraftTSAreport.TheEPArequeststhattheSCDHECsubmitdocumentationofmonitorsitingevaluations,determinations,andcorrectiveactionsforallofitsregulatorymonitoringsitesinthenextannualNetworkPlan.7