Record of email communications between Carl Selnick and John Ungvarsky

John Ungvarsky

Environmental Scientist

USEPA, Region 9

Air Planning Office

415

- 972

- 3963

------------------



### John,

Hope this works for you. Let me know.

Thanks,



### Carl Selnick

Air Quality Specialist

San Diego County Air Pollution Control District

10124 Old Grove Rd., San Diego, CA, 92131

858

- 586

- 2642

carl.selnick@sdcounty.ca.gov

www.sdapcd.org

Celebrating 50+ years of air quality progress!

From: Ungvar sky.John@epamail.epa.gov [ mailto:Ungvarsky.John@epamail.epa.gov ]

Sent: Tuesday, January 15, 2013 10:30 AM

To: Selnick, Carl

Cc: Reider, Robert

Subject: RE: Figure 4

- 1 in your maintenance plan and redesignation request

Thanks. Very helpful.

Can you send me this in a word or pdf file?

John Ungvarsky

Environmental Scientist

USEPA, Region 9

Air Planning Office

415

- 972

- 3963 (main office)

510

- 667

- 9743 (of f

- site location Mondays & Fridays)

From: "Selnick, Carl" < Carl.Selnick@sdcounty.ca.gov >

To: John Ungvarsky/R9/USEPA/US@EPA,

Cc: "Reider, Robert" < Robert.Reider@sdcounty.ca.gov >Date: 01/15/2013 10:21 AM

Subject: RE: Figure 4

- 1 in your maintenance plan and redesignation request

John,

Here it is. Let me know if you have any further questions.

Thanks,



### Carl Selnick

Air Quality Specialist

San Diego County Air Pollution Control District

10124 Old Grove Rd., San Diego, CA, 92131

858

- 586

- 2642

carl.selnick@sdcounty.ca.gov

www.sdapcd.org

Celebrating 50+ years of air quality progress!

From: Ungvarsky.John@epamail.epa.gov [ mailto:Ungvarsky .John@epamail.epa.gov ]

Sent: Tuesday, January 15, 2013 9:55 AM

To: Selnick, Carl

Subject: RE: Figur e 4

- 1 in your maintenance plan and redesignation request

Thanks. Design values would be fine.

John Ungvarsky

Environmental Scientist

USEPA, Region 9

Air Planning Office

415

- 972

- 3963 (main office)

510

- 667

- 9743 (off

- site location Mondays & Fridays)From: "Selnick, Carl" < Carl.Selnick@sdcounty.ca.gov >

To: John Ungvarsky/R9/USEPA/US@EPA,

Cc: "Reider, Robert" < Robert.Reider@sdcounty.ca.gov >

Date: 01/15/2013 09:11 AM

Subject: RE: Figure 4

- 1 in your maintenance plan and redesignation request

John,

Do you really want the annual 4 th high concentrations, or do you actually want the Design Values based on the

form of the standard, which are the running 3

- year averages of the annual 4 th high concentrations?

Thanks,



### Carl Selnick

Air Quality Specialist

San Diego County Air Pollution Control District

10124 Old Grove Rd., San Diego, CA, 92131

858

- 586

- 2642

carl.selnick@sdcounty.ca.gov

www.sdapcd.org

Celebrating 50+ years of air quality progress!

From: Ungvarsky.John@epamail.epa.gov [ mailto:Ungvarsky .John@epamail.epa.gov ]

Sent: Monday, January 14, 2013 2:54 PM

To: Selnick, Carl

Subject: Figure 4

- 1 in your maintenance plan and redesignation request

Hi Carl

-

Would it be possible for you to modify Figure 4

- 1 by adding the 4th high ozone

concentrations from 2002

- 2012 at your high conc monitor (i.e., Alpine)? You could have

ozone values on the right side of the graph.

Thanks

John Ungvarsky

Environmental Scientist

USEPA, Region 9

Air Planning Office

415

- 972

- 3963 (main office)

510

- 667

- 9743 (off

- site location Mondays & Fridays)