**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/m** **3**

**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**
**www .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**  **48 909-7760;**  **or you**  **may contact**  **me.** 

# 1i **ely,**

**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**