Monterey Bay Unified Air Pollution Control District

North Central Coast Air Basin

California

2013

Annual Monitoring Network Plan

June 30, 2013

Monterey Bay Unified Air Pollution Control District

24580 Silver Cloud Court

Monterey, California 93940

(831) 647-9411
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TABLE OF CONTENTS

Table of Contents......................................................................................................................................i

Acronyms..................................................................................................................................................ii

Air Monitoring Network Plan.................................................................................................................1

Background...................................................................................................................................1

Network Description................................................................................................................................2

Network Plan ................................................................................................................................2

General Information......................................................................................................................2

Data Use........................................................................................................................................2

EPA Monitoring Requirements.....................................................................................................2

Ambient Air Quality Standards ....................................................................................................4

Quality Assurance.........................................................................................................................5

Proposed Modifications to Network in the Next 18 Months........................................................6

Modifications Made to Network in 2011 and Early 2012.............................................................6

Review of Changes to PM2.5 Monitoring Network ..............................................................................6

Data Submission Requirements..............................................................................................................6

Detailed Site Information (SLAMS).......................................................................................................7

Salinas 3........................................................................................................................................7

Carmel Valley.............................................................................................................................12

King City 2..................................................................................................................................14

Santa Cruz...................................................................................................................................16

Hollister ......................................................................................................................................18

Detailed Site Information (SPM)..........................................................................................................20

Pinnacles NM..............................................................................................................................20

Scotts Valley.................................................... ............................................21

Felton.........................................................................................................23

Appendix

Appendix A - Public Process....................................................................................................A-1

Appendix B – MBUAPCD/BAAQMD PM10 and PM2.5 Agreements...................................B-1

Appendix C – EPA Site Waiver for Carmel Valley AMS............................................C-1
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ACRONYMS

8HrO3 Ozone eight hour running average

AIRS Air Information Retrieval System

APCD Air Pollution Control District

CARB AQS The CARB Air Quality System audit division

BAAQMD Bay Area Air Quality Management District

ARM approved regional method

ATM Atmospheric temperature monitor

BAM Beta Attenuation Monitor

CARB California Air Resources Board

CFR Code of Federal Regulations

CO carbon monoxide

District Short for Monterey Bay Unified Air Pollution Control District

EPA United States Environmental Protection Agency

EPA AQS The EPA Air Quality System

FEM Federal Equivalent Method

FRM Federal Reference Method

IMPROVE Interagency Monitoring of Protected Visual Environments

m meters

MBUAPCD Monterey Bay Unified Air Pollution Control District

MSA Metropolitan Statistical Area

NAAQS National Ambient Air Quality Standards

NCCAB North Central Coast Air Basin

NO nitric oxide

NO2 nitrogen dioxide

NOx nitrogen oxides

O3 ozone

PM10 particulate matter (0 to 10 microns aerodynamic diameter)

PM2.5 particulate matter (0 to 2.5 microns aerodynamic diameter)

SIP State Implementation Plan

SLAMS State or Local Air Monitoring Stations

SO2 sulfur dioxide

SPM Special Purpose Monitoring

WDA Wind direction average

WSA Wind speed average
1

AIR MONITORING NETWORK PLAN

Background

Formed in 1974, the Monterey Bay Unified Air Pollution Control District (District) is the public agency 

responsible for air quality management in Monterey, Santa Cruz, and San Benito Counties, which make 

up the North Central Coast Air Basin (NCCAB). The District collects and reports data from a network of 

six air monitoring stations throughout the NCCAB. These monitoring sites include five State and Local 

Air Monitoring Stations (SLAMS) and three Special Purpose Monitoring (SPM) stations.
2

Seven of the stations are directly operated and maintained by the District. The Pinnacles site is operated 

and maintained by the National Parks Service. The District also performs short-term monitoring and

special testing as needed. The District also maintains a network consisting of both mobile and stationary 

instruments, which include beta attenuation monitors, BAM-1020s and E-BAMs that are primarily

intended for the detection of PM2.5 from outdoor and residential burning, as well as wildfires.

NETWORK DESCRIPTION

Network Plan

The District adopts and submits an Annual Monitoring Network Plan to the EPA Regional Administrator. 

This plan provides for the establishment, maintenance, and evolution of an air quality monitoring system. 

The Code of Federal Regulations currently requires that this report be submitted to the U.S. 

Environmental Protection Agency (U.S. EPA) by July 1 of each year. The geographical scope of this 

report consists of Monterey, Santa Cruz, and San Benito counties, which make up the North Central Coast 

Air Basin (NCCAB) in California.

General Information

The ambient air quality standards are limits on air pollutant concentrations. They are set by the California 

Air Resources Board (CARB) and the EPA, and they are designed to protect human health and the 

environment. Based on these standards, the District monitors the air quality in the NCAAB. If an area 

does not meet the air quality standards, then regulations and control strategies are developed to reduce 

pollutants. The District collects data on both pollutant and meteorological parameters. The primary 

pollutants of concern, from a regulatory and public health perspective, are O3, PM2.5, and PM10. Most 

sites monitor for multiple pollutants and some sites collect data for other pollutants, such as NO-NO2-

NOx, and CO. Meteorological parameters are monitored at all sites and include atmospheric temperature 

monitors (ATM), wind speed average (WSA), and wind direction average (WDA).

Data Use

The air monitoring data collected by the District is used in a number of ways. It is available to various 

regulatory agencies, health and environmental researchers, and to the general public; including

environmental groups, businesses, and concerned citizens. This data is reviewed for compliance with the 

ambient air quality standards, as well as associated public health and environmental effects and impacts.

The data is submitted to CARB and the EPA, and is published on the District’s website, the “AirNow” 

website, and in newspapers.

EPA Monitoring Requirements

EPA regulations dictate the minimum number of monitoring sites to be established by State and local air 

agencies. The District network meets the minimum monitoring requirements for all criteria pollutants 

(Tables 1-5). These requirements are based on local Metropolitan Statistical Area (MSA) data, as set 

forth in the Code of Federal Regulations, (40 CFR 58). MSAs are part of a classification of geographical 

regions developed by the U.S. Census Bureau and include one or more counties, although not all counties 

fall within an MSA. For the criteria pollutants, such as O3, PM2.5, and PM10, the required minimum 

number of monitoring sites is based on both the population and the pollutant concentration in a MSA.
3

The San Jose-Sunnyvale-Santa Clara MSA falls across the jurisdictions of both the Monterey Bay Unified 

Air Pollution Control District and the Bay Area Air Quality Management District (BAAQMD). Because 

of this, in accordance with 40 CFR Part 58, Appendix D, Section (2)(e), and interagency agreement (See 

Appendix B) has been entered into in order for both Districts to share responsibility in meeting some of 

these requirements. State and local agencies may deploy additional monitors to meet more stringent State

standards, to track specific local air quality issues, or to address local public concerns. For example, 

CARB which is the primary quality assurance organization for MBUAPCD, maintains a network of 

collocated PM2.5 sites. The Salinas Air Monitoring Station is part of that network and maintains 

relatively low design values (See detailed site information). 

Table 1: Minimum Monitoring Requirements for Ozone. (DV site is highest listed regardless of agency.)

MSA County(ies) Population 

(2012)

8-hour Design Value 

[ppb] (2010-2012)

Design Value 

Site

# Required 

Monitors 

# Active 

Monitors 

# Additional 

Monitors 

Needed

San JoseSunnyvaleSanta ClaraSan Benito

Santa Clara

1894388 72 San Martin

060852006

2 5* 0

Santa CruzWatsonvilleSanta Cruz 266776 53 Santa Cruz

060870007

0 2 0

Salinas Monterey 426762 60 King City

060530008

1 3 0

(Note: Refer to 40 CFR, Part 58, Appendix D, section 4.1 and Table D-2)

Monitors required for SIP or Maintenance Plan: None

*One of the monitors located in the San Jose-Sunnyvale-Santa Clara MSA is located within MBUAPCD.

Table 2: Minimum Monitoring Requirements for PM2.5 SLAMS. (DV site is highest listed regardless of agency.)

MSA County(ies) Population 

(2012)

Annual 

Design Value 

(2010-2012)

Annual 

Design 

Value Site

Daily Design 

Value (2010-

2012)

Daily 

Design 

Value Site

Minimum # 

of Monitors 

Required

# of 

Monitors 

Present

San JoseSunnyvaleSanta ClaraSan Benito

Santa Clara

1894388 5.7 Hollister

060690002

14 Hollister

060690002

3 3*

Santa CruzWatsonvilleSanta Cruz 266776 6.3 Santa Cruz

060870007

13 Santa Cruz

060870007

0 2

Salinas Monterey 426762 6.2 Salinas

060531003

14 Salinas

060531003

0 3

(Note: Refer to 40 CFR, Part 58, Appendix D, section 4.7 and Table D-5)

Monitors required for SIP or Maintenance Plan: None

*One of the monitors located in the San Jose-Sunnyvale-Santa Clara MSA is located within MBUAPCD (See Appendix B). 

Table 3: Minimum Monitoring Requirements for PM10. (Max. Conc. site is highest listed regardless of agency.)

MSA County(ies) Population 

(2012)

Max 

Concentration 

(2011)

Max 

Concentration 

Site

#

Required 

Monitors 

# 

Active 

Monitors 

# Additional 

Monitors 

Needed

San JoseSunnyvaleSanta ClaraSan Benito

Santa Clara

1894388 105.0 Hollister

060690002

2-4 2* 0

Santa CruzWatsonvilleSanta Cruz 266776 N/A N/A 0-1 0 0

Salinas Monterey 426762 97.4 King City 2

060530008

0-1 1 0

(Note: Refer to 40 CFR, Part 58, Appendix D, section 4.6 and Table D-4)

Monitors required for SIP or Maintenance Plan: None

*One of the monitors located in the San Jose-Sunnyvale-Santa Clara MSA is located within MBUAPCD (See Appendix B).
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Table 4: Minimum Monitoring Requirements for NOx.

CBSA Population

(2012)

Max AADT

Counts

(2012)

# Required 

Near Road 

Monitors

# Active 

Near Road 

Monitors

# Additional 

Near Road 

Monitors

# Required 

Area Wide 

Monitors

# Active 

Area Wide 

Monitors

Additional 

Monitors 

Needed

Salinas 

MSA

426762 22371 0 0 0 0 1 0

(Note: Refer to 40 CFR, Part 58, Appendix D, section 4.3)

Monitors required for SIP or Maintenance Plan: None

MBUAPCD is currently operating no other NOx monitors (See Proposed Modifications to Network in Next 18 Months).

Table 5: Minimum Monitoring Requirements for CO.

CBSA Population (2012) # Required Near Road 

Monitors 

# Active Near Road 

Monitors 

# Additional Near Road 

Monitors Needed

Salinas MSA 426762 0 0 0

(Note: Refer to 40 CFR, Part 58, Appendix D, section 4.2)

Monitors required for SIP or Maintenance Plan: None

MBUAPCD is currently operating no other CO monitors (See Proposed Modifications to Network in Next 18 Months).

 SO2 (Note: Refer to 40 CFR, Part 58, Appendix D, section 4.4)

Monitors required for SIP or Maintenance Plan: None

 Pb (Note: Refer to 40 CFR, Part 58, Appendix D, section 4.5)

Monitors required for SIP or Maintenance Plan: None

Ambient Air Quality Standards

The EPA sets National Ambient Air Quality Standards (NAAQS - Table 6) for criteria pollutants as 

directed by the Federal Clean Air Act. The State of California has adopted a set of State standards (Table 

7) which are required to be at least as stringent as the NAAQS. The State standards and the federal 

primary standards are both designed to protect the health of the public. The State standards and the

federal secondary standards safeguard public welfare, including protection against decreased visibility,

damage to property, and damage to the environment. The federal primary and secondary standards for the 

pollutants currently measured in the NCCAB are identical.

Table 6: Federal Standards (NAAQS)

Pollutant Requirements of Standard Level

Ozone The 3-year average of each year’s 4th highest daily maximum 8-hour ozone 

concentration is not to exceed the level of the standard.

0.075ppm

Particulate Matter 10μm The 24-hour average is not to exceed the level of the standard more than once per 

year.

150μg/m3

Particulate Matter 2.5μm The 3-year average of the 98th percentile of the 24-hour averages is not to exceed 

the level of the standard.

35μg/m3

The 3-year average of the weighted annual means is not to exceed the level of the 

standard.

15.0μg/m3

Nitrogen Dioxide The 3-year average of the 98th percentile of the daily maximum 1-hour averages 

is not to exceed the level of the standard.

100ppb

The Annual average is not to exceed the level of the standard. 53ppb

Carbon Monoxide The 1-hour average is not to exceed the level of the standard more than once per 

year.

35ppm

The 8-hour average is not to exceed the level of the standard more than once per 

year.

9ppm

(Note: The national ambient air quality standards are found within 40 CFR, Part 50.)

(Note: The EPA adopts both rounding and truncating conventions depending on the standard. Where rounding conventions are 

used, as long as the measured pollutant level does not round up to a value higher than the standard, as read with the same number 

of significant digits as listed by the standard, the standard is not considered to be exceeded.
5

Table 7: State Standards (CAAQS)

Pollutant Standard Level

Ozone The 1-hour average is not to exceed the level of the standard. 0.09ppm

The 8-hour average is not to exceed the level of the standard. 0.07ppm

Particulate Matter 10μm The 24-hour average is not to exceed the level of the standard. 50μg/m3

The Annual average is not to exceed the level of the standard. 20μg/m3

Particulate Matter 2.5μm The 24-hour average is not to exceed the level of the standard. 35μg/m3

The Annual average is not to exceed the level of the standard. 12μg/m3

Nitrogen Dioxide The 1-hour average is not to exceed the level of the standard. 0.18ppm

The Annual average is not to exceed the level of the standard. 0.030ppm

Carbon Monoxide The 1-hour average is not to exceed the level of the standard. 20ppm

The 8-hour average is not to exceed the level of the standard. 9.0ppm

(Note: The State ambient air quality standards are found within Section 70200 of Title 17 of the California Code of Regulations.)

Quality Assurance

The District follows a quality assurance program to ensure compliance with the regulations set within 40 

CFR 58. Consistent with these federal regulations, the California Air Resources Board, Quality 

Assurance Section (CARB QAS) conducts annual performance evaluations of nitrogen dioxide, ozone 

and carbon monoxide analyzers, meteorological instruments, and flow rates for PM2.5 and PM10

monitors. CARB QAS also conducts site evaluations as part of the annual audit at each air monitoring 

station. Physical measurements and observations, including probe/sensor height above ground level, 

distance from trees, type of ground cover, residence time, obstructions to air flow, distance to local 

sources, topography, vehicle counts, predominant wind direction, and probe material are used to 

determine compliance with the requirements of 40 CFR 58, Appendix E.

The CARB QAS also ensures the quality of the data collected by the air monitoring sites operating in the 

NCCAB. This is done on a monthly basis through analysis of precision data submitted to the U.S. EPA

Air Quality System (EPA AQS). The EPA reviews the frequency of flow rate verifications for manual 

samplers and the frequency of one-point quality control checks for gaseous instruments. On an annual 

basis, the EPA performs an analysis of the precision data that concentrates on three parameters: precision

data submission, validity, and usability. The data analyses are conducted in accordance with 40 CFR 58, 

Appendix A.

The EPA QAS, through a contractor, conducts annual flow rate audits on PM2.5 and PM10 monitors.

The District performs both weekly and monthly checks of instrument functionality. Calibrations are done 

on either a quarterly or a semi-annual basis depending on the individual requirements for each instrument. 

The District has collocated PM2.5 monitors in Salinas as a further quality check as required by 40 CFR 

58, Appendix A.

Finally, CARB QAS conducts technical systems audits to determine if the District’s air monitoring 

program satisfies the requirements of 40 CFR 58, and U.S. EPA’s Quality Assurance Handbook for Air 

Pollution Measurement Systems, Volume II, April 1994. Compliance with these regulations is necessary 

for the data to be considered data-for-record, as required by the California Code of Regulations (Title 17, 

Article 3, Section 70301). Data meeting these requirements is eligible to be used in actions taken 

pursuant to the Federal and State Clean Air Acts.
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Proposed Modifications to Network in the Next 18 Months

There are several proposed changes to the air monitoring network approved by the District’s Board and 

the APCO to reduce air monitoring costs and improve efficiencies by shutting down monitoring 

parameters and stations.

 Parameter changes for SLAM stations:

o None planned at this time.

 Parameter changes for SPM stations:

o The District will continue to carry out a PM2.5 survey of wood smoke concentrations 

during the winter seasons in the Santa Cruz mountain area in the San Lorenzo Valley.

o The District intends to conduct a roadside monitoring study in Salinas, looking at trace 

level NOx, trace level CO, black carbon, PM2.5, and MET in 2013.

Modifications Made to Network in 2012 and Early 2013

The District collected data from seven monitoring sites in 2011. The following sites and/or monitoring 

parameters were changed:

 A special purpose air monitoring station was started up in August, 2012 for a term of two years to 

collect ozone data in Scotts Valley.

 A special purpose air monitoring station was started up in March, 2013 for a term of three years 

to collect PM2.5 data in Felton.

 The King City Air Monitoring Station Building was replaced during June 18th to June 22nd 2012.

REVIEW OF CHANGES TO PM2.5 MONITORING NETWORK

The NCCAB is currently in compliance with the PM2.5 ambient air quality standards. In the event that 

standards are exceeded, appropriate changes will be made to the PM2.5 monitoring network. This would 

then be documented in the Annual Network Plan which would then undergo a 30-day public review 

before submittal to the EPA.

DATA SUBMISSION REQUIREMENTS

Precision reports are submitted to the EPA’s Aerometric Information Retrieval System. Annual data 

certification is submitted by May 1, each year.
7

Detailed Site Information for State and Local Air Monitoring Stations (SLAMS)

Salinas 3

This station was established in December 1999 to monitor air quality conditions in the Salinas MSA, the 

District’s most populated area. This station features one of the District’s most extensive set of 

measurements. The data collected include CO, NO2, O3, PM2.5, BAM-PM2.5, WSA, WDA and ATM. 

PM2.5 data is collected hourly using the FEM BAM-1020 as the primary instrument. It is also collected

by an R&P FRM-2000, a filter based instrument operating on the 1 in 6 day schedule, which is collocated 

to the BAM-1020. The collocation is required by CARB, our Primary Quality Assurance Organization 

(PQAO), and is a part of their overall collocation network. The PM2.5 filters are analyzed by BAAQMD 

according to EPA specifications (See following two pages). Data from this populated area generally 

indicate good air quality and meet all State and federal standards for CO, NO2, O3, and PM2.5. Data 

from this site have been useful in assessing air pollution impacts on populations during unusual events, 

such as wildfires at Fort Ord. The 2012 PM2.5 annual design value is 6.2μg/m3for the primary 

instrument (BAM-1020) and 6.1μg/m3for the collocated instrument (R&P FRM-2000). The 2012 PM2.5 

24 Hour design value is 14μg/m3for the primary instrument (BAM-1020) and 14μg/m3for the collocated 

instrument (R&P FRM-2000).

Salinas Site Information

Site Name Salinas 3

AQS ID 06-053-1003

GIS Coordinates 36.69683, -121.636167

Address 867 East Laurel Dr., Salinas, CA 93905

County Monterey (TAMC)

Distance to Roadways 5000m

Traffic Count 22371 ADT (2010)

Groundcover Gravel

Representative Statistical Area MSA: Salinas, CA
8

From: Eric Stevenson <EStevenson@baaqmd.gov>

Sent: Thursday, May 23, 2013 4:45 PM

To: Mark Stoelting; Wendy Caruso; William Chevalier

Cc: Katherine Hoag (Hoag.Katherine@epamail.epa.gov)

Subject: Letter for Data Certification for PM2.5 Weighing

Attachments: PM2 5 Laboratory Document.docx

All –

I’ve attached a document regarding weighing of PM2.5 filters. EPA Region 9 has asked that this 

letter be included in your Annual Network Plans to ensure that your data meet requirements.

Please let me know if you have any questions or concerns.

Thanks,

Eric Stevenson

Director of Technical Services

Bay Area Air Quality Management District

939 Ellis Street

San Francisco, CA 94109

415-749-4695, estevenson@baaqmd.gov
9

PM2.5 team members,

This correspondence is to inform the appropriate members of the North Coast Unified Air 

Quality Management District and Monterey Bay Unified Air Pollution Control District that all 

pre- and post-sampled PM2.5 filters weighed by the designated staff of the Bay Area Air Quality

Management District gravimetric analysis laboratory followed EPA specifications as required by 

the references listed in Tables 1 & 2 below and that the room was operating in accordance with 

EPA requirements on the days the filters were weighed. Therefore the weights can be used for 

comparison to the NAAQS and the data can be certified by the aforementioned agencies.

Table 1 QC Measures

Quality Control Measures 

(Laboratory)

Equipment Reference Frequency

Filter 

Conditioning 

Environment

40 CFR Part 50, Appendix L, Sections 8.0 & 10.0 All filters

Filters Quality Assurance Guidance Document 2.12, Section 7.7 All filters

Filter Weighing

40 CFR Part 50, Appendix L, Section 10.10;

Quality Assurance Guidance Document 2.12, 

Sections 7.9, 7.10, & 7.11

Within 30 days of 

collection if provided to 

the laboratory within 23 

days of collection 

Working Mass 

standards

Quality Assurance Guidance Document 2.12, 

Sections 7.9 & 7.11 Every weighing session

Table 2 QA Measures

Quality Assurance Measures 

(Laboratory)

Equipment Reference Frequency

Working Mass 

standards

Quality Assurance Guidance Document 2.12 

Sections 3.3, 4.3.7 & 7.3 Yearly

Temperature & 

Relative Humidity

Quality Assurance Guidance Document 2.12 

Section 3.3, 4.3.7, & 7.6 Quarterly

Balance Quality Assurance Guidance Document 2.12 

Section 3.3, 4.3.6 & 7.2 Yearly

Working Mass 

standards vs. primary 

standards

Quality Assurance Guidance Document 2.12 

Sections 3.3, 4.3 & 7.3 Quarterly

Primary standards Quality Assurance Guidance Document 2.12 

Section 3.3, 4.3 & 7.3 Yearly
10

Salinas Air Monitoring Instrument Information

Pollutant, POC O3, 1 CO, 1 NO2, 1 Wind Speed, 1

Parameter Code 44201 42101 42602 61101

Basic Monitoring Objective NAAQS Comparison NAAQS Comparison NAAQS Comparison N/A

Site Types Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types SLAMS SLAMS SLAMS SLAMS

Instrument Manufacturer and Model TEI 49C TEI 48 TECO 42C MET-ONE 010C

Method Code 047 054 074 050

FRM/FEM/ARM/other FEM FRM FRM N/A

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Start date 12/31/1999 12/31/1999 12/31/1999 12/31/1999

Current Sampling Frequency Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 6.0m 6.0m 6.0m 10m

Distance from supporting structure 6.0m 6.0m 6.0m 10m

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees

Probe material Teflon Teflon Teflon N/A

Residence time 3.7s 4.1s 4.6s N/A

Will there be changes within the next 18 months? No No. No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A N/A

Frequency of flow rate verification for manual PM 

samplers audit N/A N/A N/A N/A

Frequency of flow rate verification for automated 

PM analyzers audit N/A N/A N/A N/A

Frequency of one-point QC check (gaseous) Daily Weekly Weekly N/A

Last Annual Performance Evaluation (gaseous) 2/08/2012 2/08/2012 2/08/2012 N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A N/A
11

Salinas Air Monitoring Instrument Information

Pollutant, POC Wind Direction, 1 ATM, 1 PM2.5, 3 PM2.5, 2

Parameter Code 61102 62101 88101 88101

Basic Monitoring Objective N/A N/A NAAQS Comparison NAAQS Comparison

Site Types Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types SLAMS SLAMS SLAMS QA Colocated

Instrument Manufacturer and Model MET-ONE 020B MET-ONE 064-2 MET ONE BAM-1020 R&P FRM-2000

Method Code 050 40 170 117

FRMFEM/ARM/other N/A N/A FEM FRM

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A Bay Area AQMD

Reporting Agency MBUAPCD MBUAPCD MBUAPCD Bay Area AQMD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Start date 12/31/1999 12/31/1999 1/1/2009 11/1/2008

Current Sampling Frequency Continuous Continuous Continuous 1:6

Calculated Sampling Frequency N/A N/A N/A 1:6

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 10m 10m 6.0m 5.8m

Distance from supporting structure 10m 10m 1.7m 1.5m

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors N/A N/A 1.8m 1.8m

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees

Probe material N/A N/A N/A N/A

Residence time N/A N/A N/A N/A

Will there be changes within the next 18 months? No No No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A Yes Yes

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A Monthly

Frequency of flow rate verification for automated 

PM analyzers audit N/A N/A Weekly N/A

Frequency of one-point QC check (gaseous) N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A 2/08/2012 3/05/2013

2/08/2012 

3/05/2013
12

Carmel Valley

This station was established in 1982 due to the smoke sensitive nature of the rural/residential Carmel 

Valley. The limited natural ventilation of the valley can also lead to trapping of ozone. Measurements 

made at this site include O3, PM2.5, WSA, WDA, and ATM. Data from this location has been useful for 

issuing public Health Advisories during wildfire events. A siting waiver for this station had been sought 

and approved by the EPA (See Appendix C) due to the presence of a nearby tree. The current PM2.5 

monitor has not yet been in place long enough to calculate a design value.

Carmel Valley Site Information

Site Name Carmel Valley

AQS ID 06-053-0002

GIS Coordinates 36.495833, -121.730556

Street Address 35 Ford Rd., Carmel Valley, CA 93924

County Monterey

Distance to Road 25m

Traffic Count 10920 ADT (2010) (TAMC-Peak)

Groundcover Paved

Representative Area MSA: Salinas, CA
13

Carmel Valley Instrument Information

Pollutant, POC O3, 1 Wind Direction, 1 Wind Speed, 1 ATM, 1 PM2.5, 3

Parameter Code 44201 61101 61102 62101 88101

Basic Monitoring Objective NAAQS Comparison N/A N/A N/A NAAQS Comparison

Site Types Population Oriented Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types SLAMS SLAMS SLAMS SLAMS Special Purpose

Instrument Manufacturer and Model TEI 49C MET-ONE 020C MET-ONE 010C MET-ONE 064-2 MET ONE BAM-1020

Method Code 047 050 050 040 170

FRMFEM/ARM/other FEM N/A N/A N/A FEM

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood

Start date 10/12/1982 7/1/2007 7/1/2007 1/1/1997 1/1/2012

Current Sampling Frequency Continuous Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 5.5m 10m 10m 10 m 4.8

Distance from supporting structure 3.0m 10m 10m 10m 2

Distance from obstructions on roof N/A N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A N/A

Distance from trees 6.1m (Waiver – Appendix C) 11m 11m 11m N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees 360 Degrees

Probe material Teflon N/A N/A N/A N/A

Residence time 9.0s N/A N/A N/A N/A

Will there be changes within the next 18 

months? No No No No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A N/A Yes

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A N/A N/A

Frequency of flow rate verification for 

automated PM analyzers audit N/A N/A N/A N/A Weekly

Frequency of one-point QC check (gaseous) Daily N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) 3/06/2012 N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A N/A 3/06/2012 3/06/2013
14

King City 2

This station was relocated to the city center in 2007 and now serves as a population 

exposure/representative concentration site. The station was previously operated by a contractor, but has 

now been operated by the District since July 1, 2010. Measurements made at the site include BAM-1020 

PM2.5, O3, WSA, WDA and ATM. This is the southernmost site in the NCCAB network. The current 

PM2.5 monitor has not yet been in place long enough to calculate a design value.

King City 2 Site Information

Site Name King City 2

AQS ID 06-053-0008

GIS Coordinates 36.209286, -121.126371

Street Address 415 Pearl St., King City, CA 93930

County Monterey

Distance to Road 50 m

Traffic Count 2616 ADT (2010) (TAMC-Peak)

Groundcover Paved

Representative Area MSA: Salinas, CA
15

King City Instrument Information

Pollutant, POC O3, 1 Wind Direction, 1 Wind Speed, 1 ATM, 1 PM10, 3 PM2.5, 3

Parameter Code 44201 61101 61102 62101 81102 88101

Basic Monitoring Objective NAAQS Comparison N/A N/A N/A NAAQS Comparison NAAQS Comparison

Site Types Population Oriented Population Oriented Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types SLAMS SLAMS SLAMS SLAMS SLAMS Special Purpose

Instrument Manufacturer and Model TEI 49C MET-ONE 020C MET-ONE 010C MET-ONE 064-2 MET ONE BAM-1020 MET ONE BAM-1020

Method Code 047 050 050 040 122 170

FRMFEM/ARM/other FEM N/A N/A N/A FEM FEM

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood

Start date 6/1/2007 10/1/2007 10/1/2007 10/1/2007 2/1/2011 1/1/2012

Current Sampling Frequency Continuous Continuous Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 4.3 10m 10m 10m 4.2 4.2

Distance from supporting structure 1.5 10m 10m 10m 1.4 1.4

Distance from obstructions on roof N/A N/A N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A N/A N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees 360 Degrees 360 Degrees

Probe material Teflon N/A N/A N/A N/A N/A

Residence time 2.5s N/A N/A N/A N/A N/A

Will there be changes within the next 18 

months? No No No No No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A N/A N/A Yes

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A N/A N/A N/A

Frequency of flow rate verification for 

automated PM analyzers audit N/A N/A N/A N/A Weekly Weekly

Frequency of one-point QC check (gaseous) Daily N/A N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) 2/07/2012 N/A N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A N/A 2/07/2012 3/05/2013

2/07/2012 

3/05/2013
16

Santa Cruz

Monitoring at this station began in 1996 to assess population exposure in the Santa Cruz/Watsonville 

Metropolitan Statistical Area (MSA). Santa Cruz is currently the largest city in Santa Cruz County and is 

the second most populated city in the NCCAB. Data collected hourly at this SLAMS site include O3, 

BAM-1020 PM2.5, WSA, WDA and ATM. The data generally indicate good air quality and meet all 

state and federal standards for both ozone and particulates. The 2012 PM2.5 annual design value is 

6.3μg/m3and the 2012 PM2.5 24 Hour design value is 13μg/m3for this station.

Santa Cruz Site Information

Site Name Santa Cruz

AQS ID 06-087-0007

GIS Coordinates 36.984, -121.9883

Street Address 2544 Soquel Ave., Santa Cruz, CA 95062

County Santa Cruz

Distance to Road 74m

Traffic Count 23818 ADT (2006) (Santa Cruz County)

Groundcover Roof

Representative Area MSA: Santa Cruz – Watsonville, CA
17

Santa Cruz Instrument Information

Pollutant, POC O3, 1 Wind Direction, 1 Wind Speed, 1 ATM, 1 PM2.5, 3

Parameter Code 44201 61101 61102 62101 88101

Basic Monitoring Objective NAAQS Comparison N/A N/A N/A NAAQS Comparison

Site Types Population Oriented Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types SLAMS SLAMS SLAMS SLAMS SLAMS

Instrument Manufacturer and Model TEI 49C MET-ONE 020B MET-ONE 010B MET-ONE 064-2 MET ONE FEMBAM-1020

Method Code 047 050 050 040 170

FRMFEM/ARM/other FEM N/A N/A N/A N/A

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood

Start date 9/1/1996 8/1/2006 8/1/2006 1/1/1999 1/1/2009

Current Sampling Frequency Continuous Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 5.8m 10m 10m 10m 5.5m

Distance from supporting structure 2.0m 6.4m 6.4m 6.4m 1.7m

Distance from obstructions on roof N/A N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A N/A

Distance from trees 10.7m 16m 16m 16m N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees 360 degrees

Probe material Teflon N/A N/A N/A N/A

Residence time 6.3s N/A N/A N/A N/A

Will there be changes within the next 18 

months? No No No No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A N/A Yes

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A N/A N/A

Frequency of flow rate verification for 

automated PM analyzers audit N/A N/A N/A N/A Weekly

Frequency of one-point QC check (gaseous) Daily N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) 3/06/2012 N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A N/A 3/06/2012 3/06/2013
18

Hollister

This station was established in 1987 to monitor potential air pollution exposures in the Hollister area, the 

largest and most rapidly growing city in San Benito County. Data collected hourly at this site include O3, 

FEM BAM-1020 PM10, FEM BAM-1020 PM2.5, WSA, WDA and ATM. Hollister is the second highest 

station on the NCCAB’s ozone monitoring network. Ozone levels at Hollister are impacted by both local 

sources as well as ozone transported from the San Francisco Bay Area Air Basin. Ozone data from this 

site have been useful in a number of regional photochemical modeling studies including SARMAP and

CCOS, as well as, a special District-funded project using the BAAQMD’s urban airshed model. PM10

exceedances at this site can occasionally be impacted by wildfire events, although fugitive dust appears to 

be the most common contributor to PM10 measurements. The 2012 PM2.5 annual design value is 

5.6μg/m3and the 2012 PM2.5 24 Hour design value is 14μg/m3for this station.

Hollister Site Information

Site Name Hollister

AQS ID 06-069-0002

GIS Coordinates 36.844167, -121.361111

Street Address 1979 Fairview Rd., Hollister, CA 95023

County San Benito

Distance to Road 100m

Traffic Count 7392 ADT (2006) (City of Hollister)

Groundcover Gravel

Representative Area MSA: San Jose – Sunnyvale – Santa Clara, CA
19

Hollister Instrument Information

Pollutant, POC O3 Wind Direction Wind Speed ATM PM10 PM2.5

Parameter Code 44201 61101 61102 62101 81102 88101

Basic Monitoring Objective NAAQS Comparison N/A N/A N/A NAAQS Comparison NAAQS Comparison

Site Types Population Oriented Population Oriented Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types SLAMS SLAMS SLAMS SLAMS SLAMS SLAMS

Instrument Manufacturer and Model TEI 49C MET-ONE 020B MET-ONE 010B MET-ONE 064-2 MET ONE FEM BAM-1020 MET ONE FEM BAM-1020

Method Code 047 050 050 040 122 170

FRMFEM/ARM/other FEM N/A N/A N/A FEM FEM

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood Neighborhood

Start date 1/1/1980 1/1/1980 1/1/1980 1/1/1980 2/1/2011 1/1/2009

Current Sampling Frequency Continuous Continuous Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 4.2m 10m 10m 10m 4.0m 4.6m

Distance from supporting structure 1.4m 10m 10m 10m 1.0m 1.8m

Distance from obstructions on roof N/A N/A N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A N/A N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees 360 Degrees 360 Degrees

Probe material Teflon N/A N/A N/A N/A N/A

Residence time 6.2s N/A N/A N/A N/A N/A

Will there be changes within the next 18 

months? No No No No No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A N/A N/A Yes

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A N/A N/A N/A

Frequency of flow rate verification for 

automated PM analyzers audit N/A N/A N/A N/A Weekly Weekly

Frequency of one-point QC check (gaseous) Daily N/A N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) 2/09/2012 N/A N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A N/A 2/09/2012 3/07/2013

2/09/2012 

3/07/2013
20

Detailed Site information for Special Purpose Monitoring (SPM) Sites

Pinnacles National Park

This station was established in 1987 by the National Parks Service (NPS) to monitor conditions at 

Pinnacles National Park, which is a federal Class I protected area, and part of the National Park 

Monitoring Network operated by the National Parks Service. Data acquired at this site include O3, WS, 

WD, and ATM. In addition, as part of the federal Interagency Monitoring of Protected Visual 

Environments (IMPROVE) program, a wide variety of particulate aerosols is monitored for the purpose 

of assessing visibility trends. However, the only parameters reported by the District at this site are O3 and 

8HrO3. Although this site is located in a remote and unpopulated area, ozone readings there are the 

highest in the District and the ozone data are used to establish the NCCAB’s designations in relation to 

the State and federal standards. CARB’s triennial transport assessments have demonstrated that the cause 

of the high readings at this mountain site has often been overwhelming transport, particularly from the 

upwind San Francisco Bay Area. Nitrate data from the IMPROVE monitors have also been used in 

District plans to indicate an improving trend. This is most likely due to regional reductions in motor 

vehicle NOx emissions, as well as controls on stationary sources.

Pinnacles Site Information

Site Name Pinnacles National Monument

AQS ID 06-069-0003

GIS Coordinates 36.485278, -121.155556

Street Address Pinnacles National Monument, 5000 Hwy 146, Paicines, CA 95043

County San Benito

Distance to Road 75 m

Traffic Count 170 ADT (2006) (D.O.T./CA)

Groundcover Gravel

Representative Area CBSA: San Jose – Sunnyvale – Santa Clara, CA

Pinnacles Instrument Information:

Pollutant, POC O3, 1 Distance from supporting structure N/A

Parameter Code 44201 Distance from obstructions on roof N/A

Basic Monitoring Objective NAAQS Comp. Distance from obstructions not on roof N/A

Site Types Other Distance from trees N/A

Monitor Types Special Purpose Distance to furnace or incinerator flue N/A

Instrument Manufacturer and Model TEI 49C Distance between collocated monitors N/A

Method Code 047 Unrestricted airflow 360 Degrees

FRMFEM/ARM/other FEM Probe material Teflon

Collecting Agency NPS Residence time 8.4s

Analytical Lab N/A Will there be changes within the next 18 months? See page 6.

Reporting Agency NPS Is it suitable for comparison against the annual PM2.5? N/A

Spatial scale Neighborhood Frequency of flow rate verification for manual PM samplers 

audit N/A

Start date 11/7/1986 Frequency of flow rate verification for automated PM 

analyzers audit N/A

Current Sampling Frequency Continuous Frequency of one-point QC check (gaseous) Weekly

Calculated Sampling Frequency N/A Last Annual Performance Evaluation (gaseous) 4/13/2012

Sampling season 01/01-12/31 Last two semi-annual flow rate audits for PM monitors N/A

Probe height 10.0 meters
21

Scotts Valley

This station was set up in August of 2012 and will run until July of 2014 for the purpose of

monitoring ozone. Historically, Scotts Valley generally had the District’s third highest ozone patterns. 

Data from this area had been used for ARB’s triennial transport assessments, which found that during 

exceedance events the area could be strongly impacted by transport from the San Francisco Bay Area Air 

Basin. The present station was put in place to assess current ozone trends to see if further monitoring is 

warranted. Data collected hourly at this site include O3, WSA, WDA and ATM.

Scotts Valley Site Information

Site Name Santa Cruz

AQS ID 06-087-1003

GIS Coordinates 37.0721, -122.0076

Street Address 555 Glenwood Drive, Scotts Valley, CA 95066

County Santa Cruz

Distance to Road 226m

Traffic Count 23818 ADT (2006) (Santa Cruz County)

Groundcover Bare ground/Dirt

Representative Area MSA: Santa Cruz – Watsonville, CA
22

Scotts Valley Instrument Information

Pollutant, POC O3, 1 Wind Direction, 1 Wind Speed, 1 ATM, 1

Parameter Code 44201 61101 61102 62101

Basic Monitoring Objective NAAQS Comparison N/A N/A N/A

Site Types Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types Special Purpose Special Purpose Special Purpose Special Purpose

Instrument Manufacturer and Model TEI 49C MET-ONE 020C MET-ONE 010C MET-ONE 064-2

Method Code 047 050 050 040

FRMFEM/ARM/other FEM N/A N/A N/A

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Start date 8/3/2012 8/3/2012 8/3/2012 8/3/2012

Current Sampling Frequency Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 4.9m 6.7m 6.7m 6.7 m

Distance from supporting structure 3.0m 10m 10m 10m

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees N/A N/A N/A N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 Degrees

Probe material Teflon N/A N/A N/A

Residence time 4.2s N/A N/A N/A

Will there be changes within the next 18 

months? Station Closes. Station Closes. Station Closes. Station Closes.

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A N/A

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A N/A

Frequency of flow rate verification for 

automated PM analyzers audit N/A N/A N/A N/A

Frequency of one-point QC check (gaseous) Daily N/A N/A N/A

Last Annual Performance Evaluation (gaseous) New Station – None yet. N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A N/A
23

Felton

This station was set up in March of 2013 and will run until October of 2015 for the purpose of

monitoring PM2.5. For years, the San Lorenzo Valley has been the source of many of the District’s wood

smoke complaints. The sources have primarily been smoke output from residential chimneys during the 

winter months or from outdoor brush during the burn season. Monitoring has been carried out at this 

location during the months of October to April during the 2011-2012 and 2012-2013 winter and burn 

seasons, and indicated significant levels of smoke periodically. Data collected hourly at this site include 

FEM BAM-1020 PM2.5, WSA, WDA and ATM.

Felton Site Information

Site Name Felton

AQS ID 06-087-1004

GIS Coordinates 37.0481, -122.0747

Street Address 6059 Highway 9, Felton, CA 95018

County Santa Cruz

Distance to Road 88m

Traffic Count 23818 ADT (2006) (Santa Cruz County)

Groundcover Paved

Representative Area MSA: Santa Cruz – Watsonville, CA
24

Felton Instrument Information

Pollutant, POC Wind Direction, 1 Wind Speed, 1 ATM, 1 PM2.5, 3

Parameter Code 61101 61102 62101 88101

Basic Monitoring Objective N/A N/A N/A NAAQS Comparison

Site Types Population Oriented Population Oriented Population Oriented Population Oriented

Monitor Types Special Purpose Special Purpose Special Purpose Special Purpose

Instrument Manufacturer and Model MET-ONE 020B MET-ONE 010B MET-ONE 064-2 MET ONE FEMBAM-1020

Method Code 050 050 040 170

FRMFEM/ARM/other N/A N/A N/A N/A

Collecting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Analytical Lab N/A N/A N/A N/A

Reporting Agency MBUAPCD MBUAPCD MBUAPCD MBUAPCD

Spatial scale Neighborhood Neighborhood Neighborhood Neighborhood

Start date 4/5/2013 4/5/2013 4/5/2013 4/5/2013

Current Sampling Frequency Continuous Continuous Continuous Continuous

Calculated Sampling Frequency N/A N/A N/A N/A

Sampling season 01/01-12/31 01/01-12/31 01/01-12/31 01/01-12/31

Probe height 6.7m 6.7m 6.7m 4.3m

Distance from supporting structure 4.3m 4.3m 4.3m 1.8

Distance from obstructions on roof N/A N/A N/A N/A

Distance from obstructions not on roof N/A N/A N/A N/A

Distance from trees 10m 10m 10m N/A

Distance to furnace or incinerator flue N/A N/A N/A N/A

Distance between collocated monitors N/A N/A N/A N/A

Unrestricted airflow 360 Degrees 360 Degrees 360 Degrees 360 degrees

Probe material N/A N/A N/A N/A

Residence time N/A N/A N/A N/A

Will there be changes within the next 18 

months? No No No No

Is it suitable for comparison against the annual 

PM2.5? N/A N/A N/A Yes

Frequency of flow rate verification for manual 

PM samplers audit N/A N/A N/A N/A

Frequency of flow rate verification for 

automated PM analyzers audit N/A N/A N/A Weekly

Frequency of one-point QC check (gaseous) N/A N/A N/A N/A

Last Annual Performance Evaluation (gaseous) N/A N/A N/A N/A

Last two semi-annual flow rate audits for PM 

monitors N/A N/A N/A New Station – None yet.
A-1

Appendix A - Public Process

Released for Comment -- May 30, 2013

Published to District WEB Page -- May 30, 2013

Board of Directors Public Hearing -- June 19, 2013

Submitted to U.S. EPA -- June 28, 2013

As of June 28, 2013 no comments received to the District.
B-1

Appendix B

MBUAPCD and BAAQMD Interagency Agreement

(Next Three Pages)



C-1

Appendix C

EPA Siting Waiver for Carmel Valley AMS

(Next Page)