| MWC UNIT # |
POLLUTANT OR PARAMETER |
START DATE |
TIME OF EXCESS EMISSIONS |
MONITORED LEVEL |
APPLICABLE LIMIT |
SPECIFIC REASON FOR EXCESS |
CORRECTIVE ACTIONS TAKEN |
| 2 |
CO |
3/5/2008 |
2000 |
2359 |
71 |
69 |
SHUTDOWN - to perform boiler tube water wash. Boiler emissions were above the limit for only 1-hour during the 4-hour compliance block. This is an excused excess emission event since the actual event was 3-hours or less in duration. |
Used gas during shutdown to minimize emissions. |
| 2 |
SO2 |
3/6/2008 |
2300 |
2359 |
40 |
29 |
STARTUP - following water wash. Abnormally high SO2 inlet concentration during beginning of combustion process on MSW. Boiler was operating and emissions were above the limit for only 1-hour during the 24-hour compliance block. This is an excused excess emission event since the actual event was 3-hours or less in duration. |
Ramp up SDA to full operation - monitor boiler exit/SDA hopper temperatures and adjust lime slurry feed rate accordingly. |
| 2 |
CO |
4/10/2008 |
1600 |
1659 |
90 |
69 |
SHUTDOWN due to external tube leak. Boiler was operating and emissions were above the limit for only 1-hour during the 4-hour compliance block. This is an excused excess emission event since the actual event was 3-hours or less in duration. |
Used gas during shutdown to minimize emissions. |
| 2 |
CO |
5/5/2008 |
0000 |
0059 |
189 |
69 |
SHUTDOWN due to economizer tube failure. Boiler was operating and emissions were above the limit for only 1-hour during the 4-hour compliance block. This is an excused excess emission event since the actual event was 3-hours or less in duration. |
Used gas during shutdown to minimize emissions. |
| 2 |
CO |
6/29/2008 |
2300 |
2359 |
70 |
69 |
STARTUP after scheduled maintenance activities. Boiler was operating and emissions were above the limit for only 1-hour during the 4-hour compliance block. This is an excused excess emission event since the actual event was 3-hours or less in duration. |
Used gas during startup to minimize emissions. |
