Detroit Edison - Permitting Information

1. Facility Information

Detroit Edison

2. Location

3500 Front Street, Monroe, MI

3. Distance from US/Canada Border

about 25 km

4. Facility Type and Size

proposed upgrade to the existing low-NOx burners (Boiler 3) with more efficient ones

5. Sources of Emissions

Boiler # 3 (output 795MW)

6. Type of Fuel

natural gas, coal

7. Type and Quantity of Emissions

SO2 - 1.6 lb/MMBTU (this limit is a combined limit for Boilers 1, 2, and 4),
PM - 0.12 lb/1,000 lb at 50% excess air.

8. Emission Control Technology

Low NOx burners, dry wire electrostatic  precipitator, SO3 flue gas conditioning system, selective catalytic reduction  system.

9. Date Permit Application Received

06/29/2006

10. Stack Height and Diameter

The stacks' minimum heights above ground level and maximum diameters are in concordance with 40 CFR 52.21 Subparts (c) and (d) (maximum diameter is 336 in and minimum height 805 ft)

11. Permit Agency Contact

David Riddle
Michigan Department of Environmental Quality,
Air Quality Division,
Constitution Hall,
525 West Allegan Street
PO Box 30260
Lansing, MI, 48909 - 7760
Tel. 517 373 - 7081