UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 6 1445 ROSS AVENUE, SUITE '200 DALLAS TX 75202-2733 

### JAN 1 3 lulL

Ms. Mary Lou Leonard Director, Environmental Health Department City ofAlbuquerque Post Office Box 1293 Albuquerque, New Mexico 87103 

### Dear Ms. Leonard: Thankyou for providing your correspondence for the City ofAlbuquerque's 2011 Annual Monitoring Neh-york Plan. The U.S. Environmental Protection Agency (EPA) has completed its analysis ofthe City ofAlbuquerque's 2011 Annual Monitoring Network Plan to ensure it meets those requirements of40 CFR Part 58 and its appendices that confer approval authority on the Regional Administrator. We appreciate your cooperation and work to submit your 2011 network plan. The EPA has reviewed the proposed monitor designation changes to theCity ofAlbuquerque Monitoring Network, and Iam pleased to infonn you that your 2011 networkplan is approved. The network assessmentprocess presents an opportunity for the EPA and the City ofAlbuquerque to collaborate on air monitoring network design. See 40 CFR Part 58 App. D, 1.1.2. Details regarding ourreview ofyour air monitoring network are provided in the enclosure. We look forward to our continued collaborative work with the City ofAlbuquerque on your 2012 ambientair monitoring networkplan. Ifyou have any questions, please contactme at (214) 665-2100, or your staffmay contact Ms. MariaMartinez ofmy staffat (214) 665-2230.

A en z Regional Administrator \

Enclosure

Inlllfnet Addres$ (URLj • http:ltwww.epa.gov/regIOl16 Recycled/Recyclable. Printed with vegEllabfe 011 Ba$4Kllnks on 100% Recycled Paper, Process Chlorine Free

### Technical Comments on the City ofAlbuquerque 2011 Annual Network Plan
Change Approvals: Particulate Matter (PM) 

### We confinn that the PMlO monitor at the 2ZV South Valley site (Air Quality System, AQS #35-001-0029) now meets the siting criteria and has been designated as Stale or Local Air Monitoring Slations (SLAMS) as ofJanuary 1,2011 in AQS. Please 

### note any PMIO data collected at this site is now

### used forcompliance with the PMlO National Ambient Air Quality Stlndards (NAAQS). 

### According to the network plan, the PMI0 monitorat the 2ZH Nonh Valley site (AQS #35-001-1013) does not meet sitingcriteriadue 10 

### local minorsources. See 

### 40 CFR Pan 58, App. E, 3(a). The City ofAlbuquerque is in the process ofgetting the site 

### into compliance with the siting requirements. In addition, the 2ZW Westside site (AQS #35-001-0032) is aspecial purpose monitor intended to characterize the background prior 10 

### anticipated development. Therefore, Region 6 will notuse the dalafrom Ihese PM10 monitors for compliance with the PMIO NAAQS. Please note in AQS that the 2ZH North Valley site 

### PM10monitor is notmeetingthe requirements of40 CFRPart 58, App 

### E. Network Assessments: Carbon Monoxide (CO) 

### Thecurrent CO network forthe City ofAlbuquerque exceeds the minimum requirements with four monitors. See 

### 40 CFR Part 58, App. D, 4.2. The CO monitor at the 2ZH North Valley site (AQS #35-00 I-I 013) has the second lowest design value. The 

### City ofAlbuquerque may want to re-evaluate the CO monitor at this site. Any request forasystem modi.fication under40 CFR § 

### 58.14(c) should 

### be submitted in writing to EPA Region 6. PM 

### We note that the CityofAlbuquerque operates PM10 gravimetricmonitors at the 2ZM Del Norte site (AQS #35-001-0023) and the 2ZS Singer(AQS #35-001-0026) to 

### meetthe requirements of40 CFR Part 58, App. D, 4.6. Funhennore based on our assessment, the CityofAlbuquerque operates primary and secondary PMI0 gravimetric monitors at the 2ZS Singer site (AQS #35-001-0026) to meet the 15% collocation requirements. 

### See 40 CFR Part 58, App. A, 3.3.1. 

### According to the network plan, the City ofAlbuquerque plans to operate PMIO tapered elementoscillatingmicrobalance (TEOM) monitors at the 2ZH North Valley site (AQS #35-001-1013), the 2ZS Singer site (AQS #35-001-0026), the 2ZV South Valley

### 2

site (AQS #35-001-0029), and the 2ZW Westside site (AQS #35-001-0032) as nonregulatory. The City ofAlbuquerque wishes to use the PMl

## adata for the Air Quality Index. We have no objections ifyou have confidence with the data quality. Requests for Additional Information: Please provide awritten response for the following issues to the EPA Region 6Air Quality Analysis Section Chiefwithin 45 days ofthe date ofthis letter. PM Please provide the Region an explanation ofthe objective for collocating and operating a PMIO gravimetric monitor at the 2ZH North Valley site (AQS #35-001-1013) ifthe site does notmeet siting criteria.
Lead (Pb) According to Tables I and lA, the Pb monitor at the 2ZM Del Norte site (AQS #35-001-0023) is listed as operating as continuous seasonal; this NeeTe Pb monitor must be operated all year ata l-in-6 day sampling frequency. See 40 CFR §58.12(b) and Part 58, App. D, 2(e). We request that you revise Tables 1and lA accordingly. In addition, the spatial scale fortheNCore Pb monitor is designated as regional scale instead of neighborhood scale, as are the remainingNCore monitor neighborhood designations at the 2ZM Del Norte site. We request that you designate the NCore Pb monitor as neighborhood scale. See 40 CFR Part 58, App. D, 4.5(b) and (d). In this network plan, the City ofAlbuquerque also references that the NCore Pb monitor is to be installed at the 2ZV South Valley site (AQS #35-001-0029), pending EPA agreement. From email correspondence, Region 6 understands that the City of Albuquerque subsequently decided to operate the Pb monitor at the 2ZM Del Norte site (AQS #35-001-0023). We request that you correctthe reference to theNCore Pb monitor being installed at the 2ZV South Valley site and confirm the location oftheNeore Pb monitor. General Comments The network plan's Appendix states that the lead sampler was pending 20II grant funding. Funding issues are discussed duringthe grant process; however, funding will be made available forthe required Pb monitor.