AQ_F_1800073_20011115_CEM_RptRvwLtr

4
NCDENR
North Carolina Department of Environment and Natural Resources
DIVISION OF AIR QUALITY
Michael F.Easley,Governor William G. Ross Jr., Secretary
Alan W. Klimek, P.E., Director
November 15, 2001
Mr. Henderson Reid
Electric System Support
Duke Power Company
P.O. Box 33189
Charlotte, North Carolina 28242
SUBJECT: 2nd Quarter 2001 Continuous Opacity Monitoring(COM) Excess Emissions
Report (EER)
Dear Mr. Reid:
The Division of Air Quality (DAQ)has reviewed Duke Power Company's fourth quarter
opacity excess emissions report (EER) dated July 24, 2001. The second quarter 2001 EERs
were reviewed for compliance with good operation and maintenance (O&M) practices as well
as compliance with 2D .0521.
When reviewed for compliance with good O&M practices, the data in the EERs indicate the
opacity excess emissions and COM downtime are within the target levels prescribed in the
CEM Enforcement Polices (CEP) and the Special Order by Consent (SOC) Agreement between
Duke Power and the Environmental Management Commission dated September 28, 1999.
When reviewed for compliance with 2D .0521, a total of ninety-five six-minute exceedances
were noted during the quarter. These exceedances were all below the actionable threshold.
As noted in your July 24, 2001 letter, Marshall Unit 4 exceeded the 2%criteria for excess
emissions with the actual at 2.15% during the reporting period. However as allowed by the air
permit for the facility, Duke Power examined the previous 2200 hours of operation data to
demonstrate that 1.13% excess emissions were less than the 2% criteria for the unit. As
required per SOC, Duke Power properly explained the circumstances that resulted in the excess
emission for Marshall Unit 4.
Finally, the DAQ will not issue any NOVs for these exceedances as specified with the SOC. As
long as the terms and conditions of the SOC are met, the DAQ will not pursue further
enforcement with regards to compliance issues related to .0521 regulations.
Technical Services Section
1641 Mail Service Center, Raleigh, North Carolina 27699-1641 • 2728 Capital Boulevard,Raleigh,North Carolina 27604
Phone: [phone] - FAX: [phone] -Internet: www.daq.state.nc.us
An Equal Opportunity 1 Affirmative Action Employer• 30% Post•Consumer Recycled Paper

Mr. Henderson Reid
November 15, 2001
Page Two
If you have any questions regarding the above, please contact me at(919) 715-0726.
Sincerely,
-T V
Richard R. Simpson
Environmental Engineer
cc: smoke Aldridge Mike Landis—MRO Central Files:
Lee Daniel Paul Muller—ARO -Catawba Co./Marshall
John Evans Myron Whitley—WSRO -Gaston Co./Allen
Dr.Van der Vaart -Gaston Co./Riverbend
Bill Horton (Duke) -Rockingham Co./Dan River
Kris Knudsen (Duke) -Rowan Co./Buck
David Miller(Duke) -Rutherford Co./Cliffside
-Stokes Co./Belews Creek

Company: Duke Power Co.
Report Type: Excess Emission Report
Time Period: 2nd Quarter, 2001
Pollutant: Opacity
Reviewer: Richard R. Simpson
Date of Review: November 15, 2001
Total Number of 6-minute Excess Emissions
Excluding Startup(SU)IShutdown(SD) and Malfunctions(MF)
_ Total Nlin. of Total Number of
Total Excess Emissions 6 min.Excess Emissions Total Number
Operating Excluding SU, Excluding SU, of 6 min. periods
Unit Name Time (Min) SD and MF. SD and NIF. (SU) (SD) (MF)
Allen No. 1 [ 79,884 30 5 46 2 7
Allen No.2 [ 122,136 0 0 0 1 2
Allen No. 3 I 114,210 0 0 1 2 3
Allen No.4 93,438 6 1 3 1 1 8
Allen No. 5 [ 113,736 0 0 11 1 0
Belews Creek No. 1 [ 129,630 0 0 17 4 0
Belews Creek No. 2 ( 122,844 0 0 42 1 10
Buck Unit 3 Stk. 5 [ 74,478 30 5 22 19 5
Buck Unit 3 Stk.6 81,462 24 4 91 0 8
Buck No.4 Stk.7 ( 82,482 0 0 123 69 2
Buck No.5a Stk. 8a [ 116,796 18 3 144 11 6
Buck No.5b Stk.8b [ 116,850 0 0 83 16 5
Buck No. 6a Stk. 9a [ 118,266 6 1 47 74 0
Buck No. 6b Stk. 9b [ 118,284 0 0 42 48 0
Cliffside No. 1 [ 86,868 12 2 24 0 3
Cliffside No. 2 [ 83,070 0 0 41 2 6
Cliffside No. 3 [ 83,106 54 9 25 3 0
Cliffside No.4 [ 101,136 60 10 27 37 9
Cliffside No. 5 [ 68,142 18 3 70 10 4
Dan River No.1 ( 80,346 12 2 39 8 2
Dan River No.2 [ 80,256 48 8 28 0 2
Dan River No.3a [ 63,174 0 0 16 0 1
Dan River No.3b [ 63,114 6 1 13 0 0
Marshall No. 1 I 126,180 0 0 3 19 0
Marshall No. 2 [ 123,438 36 6 2 10 0
Marshall No. 3 123,270 66 11 2 4 1
Marshall No.4 [ 69,672 6 1 246 2 1
Riverbend No.4a Stk. 7a [ 94,884 6 1 27 7 1
Riverbend No.4b Stk.7b [ 92,268 30 5 13 6 10
Riverbend No. 5a Stk. 8a ( 81,924 0 0 28 7 0
Riverbend No. 5b Stk. 8b [ 77,766 30 5 28 6 2
Riverbend No. 6a Stk. 9a ( 120,936 36 6 41 0 1 1
Riverbend No. 6b Stk. 9b [ 118,218 6 1 37 0 0
Riverbend No. 7a Stk. IOa[ 119,508 24 4 34 6 3
Riverbend No. 7b Stk. IOb) 117,510 6 1 1 43 3 1
Total [ - - 570 95 1,459 379 103
Note 1:All Duke Power Units are regulated by NCAC 2D .0604 "Sources Covered by Implementation Plan Requirements,
NCAC 2D.0535"Excess Emissions Reporting and Malfunction"and NCAC 2D.0521 "Control of Visible Emissions."
Note 2:Emissions Standards:SIP Sources-4017o Opacity(6-minute average)except that 6-minute periods averaging not
more than 90110 opacity may occur not more than four times in any 24-hour period.
Note 3:Control Equipment:Electrostatic precipitators an all units.
rrs/nc d enr/d u kepwwer/eer/2001 eer/eer-2g01.x Is