Tax, Wienke

From: Flagg, MichaelA

Sent: Tuesday, February 11,20145:14 PM

To: Ungvarsky, John

Cc: Tax, Wienke; Kurpius, Meredith

Subject: RE: monitoring data request

Attachments: SouthCoast_Ozone_Workbook_2008-201 3.xlsx; SouthCoast_TribalMonitors_Quicklook_

1 hour_Ozone_2008-201 3.pdf; SouthCoast_TribalMonitors_DesignValue_1 997Ozone_

2008-201 3.pdf; SouthCoast_DesignValue_1 997Ozone_2008-201 3.pdf;

SouthCoastQuicklookl hour Ozone_2008-201 3.pdf; monitoring data request for South

Coast ozone_mf_2014 02_il .docx

John and Wienke,

Attached are a completed data request form, an excel spreadsheet with the calculated DVs in summary tables, and the

corresponding AQS reports that are the basis for the information in the excel spreadsheet.

There are three sheets in the excel file that cover the data request.

(1) 1997 8-hour DV Table

(2) 1-hour Ave.Exp.Exceed. Table

(3) 1-hour Exceed. Count Table

As you will notice the Design Value site for 2011-2013 for both 1997 8-hour and 1-hour has shifted from Crestline to the

Redlands site... which is interesting.

Also, as you might expect most 2011-2013 DVs are incomplete, as final data for the 4th quarter does not have to be

submitted until April 1, 2014.

A final note, i only calculated the 1-hour average excpected exceedance design value for periods when ALL three years

of data were present. Partial averages of 1 or 2 years of data were not included and denoted with a IT11 in the

corresponding summary table.

These can be calculated, but will take more time, as i would have to dig through old guidance to see how this is

determined. Either way, this does not affect the most recent year DV5.

Please let me know if you have any questions or need additional information.

From: Flagg, MichaelA

Sent: Friday, February 07, 2014 9:52 AM

To: Ungvarsky, John

Cc: Tax, Wienke; Kurpius, Meredith

Subject: RE: monitoring data request

Thanks John, this is very helpful.

I should be ab.le to get you something by early next week.

1
From: Ungvarsky, John

Sent: Friday, February 07, 2014 9:03 AM

To: Flagg, MichaelA

Cc: Tax, Wienke; Kurpius, Meredith

Subject: RE: monitoring data request

Excellent.

Wienke and I have parallel actions underway that may be signed on the same date or in close proximity to each other. I

am working on South Coast VMT offset demonstrations for 1-hr and 8-hr (1997) ozone standards, and Wienke is working

on the South Coast attainment plan for 1-hr ozone.

See attached for relevant language in my draft NPR. In the current draft, I’m assuming Crestline is the high monitor for

both 1-hr and 8-hr (1997). My action is on a narrowly defined issue (i.e., VMT offset demo), but I want to mention the

current AQ situation in the background. Wienke’s needs are likely greater because she is acting on a plan. (She can

elaborate.)

I hope this helps. Let us know if you have any questions

Thanks

John Ungvarsky

Environmental Scientist

USE PA, Region 9

Air Division, Planning Office

415-972-3963 (office)

510-667-9743 (alternate work location)

From: Flagg, MichaelA

Sent: Thursday, February 06, 2014 4:32 PM

To: Ungvarsky, John

Cc: Tax, Wienke; Kurpius, Meredith

Subject: RE: monitoring data request

I should be able to start on this tomorrow and have something next week.

What actions are the data for?

Michael Flagg

EPA Region 9

Air Quality Analysis Office

P: 415.972.3372

E: Flagg.MichaelA@epa.gov<mailto:Flagg.MichaelA@epa.gov>

From: Ungvarsky, John

Sent: Thursday, February 06, 2014 4:29 PM

To: Flagg, MichaelA

Cc: Tax, Wienke; Kurpius, Meredith

Subject: RE: monitoring data request

Hi Michael—

2
Just wanted to check in about the data request sent in Dec. I know you are typically swamped, but will you be able to get

to this in the near future? I’ll need to circulate the draft NPR by the end of Feb (but sooner would be better).

Thanks

John Ungvarsky

Environmental Scientist

USE PA, Region 9

Air Division, Planning Office

415-972-3963 (office)

510-667-9743 (alternate work location)

From: Kurpius, Meredith

Sent: Thursday, December 19, 2013 11:21 AM

To: Ungvarsky, John

Cc: Tax, Wienke; Flagg, MichaelA

Subject: FW: monitoring data request

John!Wienke,

Michael is the ozone and SC monitoring lead so please work with him (he is cc’d).

-Meredith

From: Ungvarsky, John

Sent: Wednesday, December 18, 2013 4:51 PM

To: Kurpius, Meredith

Cc: Tax, Wienke

Subject: monitoring data request

Hi Meredith —

In Mar-Apr 2014, Wienke and I will have rulemaking actions on South Coast ozone. These will require some data pulls.

Please see the attached request. There isn’t a big rush, but hopefully you can assign someone to complete this by early

February.

Thanks.

Have a happy and healthy holiday season and new year.

John Ungvarsky

Environmental Scientist

USE PA, Region 9

Air Division, Planning Office

415-972-3963 (office)

510-667-9743 (alternate work location)

3