RICK SNYDER 

GOVERNOR 

STATE OF MICHIGAN 

DEPARTMENT OF ENVIRONMENTAL QUALITY 

LANSING 

May 13, 2015 

Dr. Susan Hedman, Regional Administrator 

United States Environmental Protection Agency 

Region 5 

77 West Jackson Boulevard (R-19J) 

Chicago, Illinois 60604 

Dear Dr. Hedman: 

DE€\ 

DAN WYANT 

DIRECTOR 

SUBJECT: Clean Data Determination for Ionia County (partial), City of Belding, Lead 

Nonattainment Area 

Through this letter, the Michigan Department of Environmental Quality (MDEQ) 

requests that the United States Environmental Protection Agency (USEPA) make a 

Clean Data Determination for the Ionia County (partial), City of Belding, nonattainment 

area for the 2008 Lead National Ambient Air Quality Standard. 

This area was designated nonattainment on November 22, 2011. Since that time, the 

MDEQ has conducted monitoring at two locations (Reed Street monitor 26067002 and 

Merrick Street monitor 26067003) surrounding the source of the lead emissions in the 

nonattainment area. The most current three years of data is included in Table 1. 

Month 

1 

2 

3 

4 

5 

6 

7 

8 

9 

10 

11 

12 

2012 Data 

Monitor 

Table 1 

City of Belding, Michigan 

2012-2014 Lead Monitoring Data 

3-month rolling average, in ug/m3 

2013 Data 

Monitor Monitor Monitor 

26067003 26067002 26067003 26067002 

0.02 0.03 0.02 0.02 

0.02 0.04 0.03 0.01 

0.03 0.05 0.03 0.01 

0.04 0.04 0.03 0.01 

0.05 0.04 0.03 0.03 

0.06 0.04 0.03 0.03 

0.05 0.04 0.04 0.04 

0.05 0.04 0.04 0.05 

0.04 0.05 0.04 0.05 

0.03 0.04 0.03 0.06 

0.02 0.03 0.04 0.04 

0.02 0.02 0.05 0.04 

2014 Data 

Monitor Monitor 

26067003 26067002 

0.05 0.02 

0.03 0.02 

0.02 0.02 

0.04 0.01 

0.04 0.02 

0.04 0.02 

0.03 0.02 

0.03 0.01 

0.03 0.04 

0.03 0.04 

0.03 0.04 

0.04 0.02 

CONSTITUTION HALL • 525 WEST ALLEGAN STREET • P.O. BOX 30473 • LANSING, MICHIGAN 48909-7973 ww

.michigan.gov/deq • (800) 662-9278 
Dr. Susan Hedman 

Page 2 

May 13, 2015 

The ambient air quality data is quality-assured and complete, consistent with 40 CFR, 

Part 58, Ambient Air Quality Surveillance, and properly submitted to the Air Quality 

Subsystem of USEPA's Aerometric Information Retrieval System. The ambient air 

quality data completeness is demonstrated in Table 2. 

Table 2 

City of Belding, Michigan 

Completeness Criteria for Monitors 26067002 and 26067003 

Year Monitor 26067003 Monitor 26067002 

2012 100% 100% 

2013 98% 98% 

2014 98% 98% 

Annual data certification letters submitted to the USEPA, Region 5, quality-assures and 

verifies proper submittal of the ambient air quality data. The MDEQ last submitted an 

annual data certification letter on April 20, 2015. 

Questions on this request may be directed to Ms. Mary Maupin, SIP Unit Supervisor, Air 

Quality Division (AQD), at 517-284-6755 or maupinm@michigan.gov; or Mr. Craig 

Fitzner, Air Monitoring Unit Supervisor, AQD, at 517-284-6743 or 

fitznerc@michigan.gov; or MDEQ, P.O. Box 30260, Lansing, Michigan 48909-7760; or 

you may contact me. 

1iely, 

Dan W� 

cc: Ms. Sarah Arra, USEPA, Region 5 

Director 

517-284-67 0 

Mr. Jim Sygo, Chief Deputy Director, MDEQ 

Ms. Lynn Fiedler, MDEQ 

Ms. Mary Maupin, MDEQ 

Mr. Craig Fitzner, MDEQ 

Ms. Erica Wolf, MDEQ