Document ID: EPA-HQ-OAR-2009-0430-0004
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2009-09-08T04:00Z

FROM:  Robert L. Miller, EPA Clean Air Markets Division

TO:  Docket OAR-2009-0430

SUBJECT:  Discussion with Mr. Paul Turregano of the Cleco Corporation
Regarding the 2006 Annual Average NOX Emission Rate for Evangeline Unit
7-1

DATE:  September 3, 2009

On or about Monday, August 3, 2009, Paul Turregano, Air Quality Manager
for the Cleco Corporation, which owns the Evangeline facility (plant
code 1396) in Louisiana, contacted me by phone.  Mr. Turregano told me
that the 0.03 lb/mmBtu annual average NOX rate shown for Evangeline unit
7-1 for 2006 in document number OAR-2009-0430-0002 in the docket for the
CAIR compliance supplement pool (CSP) should in fact show what he
believed to be the correct value for 2006 of 0.04 lb/mmBtu.  In a
subsequent August 5, 2009 email to me, Mr. Turregano noted that his
“CEMS person” concurred that an annual average NOX rate of 0.035 had
been reported for Evangeline unit 7-1 for calendar year 2006.  Mr.
Turregano also appended to his email an emissions report from EPA’s
“Data & Maps” website, which showed an annual average NOX rate for
Evangeline unit 7-1 in 2006 of 0.04 lb/mmBtu.

After finishing our initial phone conversation and looking into the
matter further, I phoned Mr. Turregano September 3, 2009 to explain to
him why the NOX rates were different and why the 0.03 lb/mmBtu annual
average NOX rate was the correct rate to use for purposes of
administering the CSP.  I explained to Mr. Turregano that emissions data
feedback reports generated by the submission of emissions data reports
to EPA includes EPA confirmation of emissions data values reported to
EPA by the owners and operators, as well as emissions data calculations
made by EPA.  I told Mr. Turregano that EPA’s calculations are based
on the hourly data submitted by the owners and operators and calculated
in accordance with formulas under 40 CFR part 75.  In the instant case,
and as denoted on page 3 of the ETS Feedback Report for Evangeline for
the 4th quarter of 2006 dated January 30, 2007, the annual average NOX
rate reported by the owners and operators for unit 7-1 and shown in the
“Cumulative Annual or Cumulative Ozone Season” column is 0.04
lb/mmBtu.  However, to the right of and adjacent to this column on the
same page is the “EPA-accepted values” column.  The annual average
NOX rate calculated  by EPA for unit 7-1 for calendar year 2006 and
shown in the “EPA-accepted Values” column is 0.03 lb/mmBtu.

I went on to tell Mr. Turregano that EPA, using Equation F-10 under 40
CFR part 75, determined that the straight arithmetic annual average NOX
rate for Evangeline unit 7-1 for 2006, if calculated to the nearest
ten-thousandth, is 0.0348 lb/mmBtu.  Consistent with 40 CFR part 75 and
the EDR instructions, the owners and operators of Evangeline reported
for unit 7-1 in 2006 a cumulative annual average NOX rate of 0.035
lb/mmBtu using conventional rounding to the nearest thousandth.  Once
submitted by the owners and operators, this reported value was in turn
rounded automatically by EPA to the nearest hundredth to 0.04 lb/mmBtu
and recorded in the feedback report in the “Cumulative Annual or
Cumulative Ozone Season” column as described above.  However, in
calculating EPA-accepted values, EPA rounds the 0.0348 value shown above
in one step to the nearest hundredth.  Therefore, again using
conventional rounding, the 0.0348 value is rounded to a NOX rate of 0.03
lb/mmBtu.  In addition, I pointed out to Mr. Turregano that the
EPA-accepted value of 0.03 lb/mmBtu is clearly more accurate than the
rate of 0.04 lb/mmBtu, since the difference between 0.0348 and 0.03 is
smaller (.0048) than the difference between 0.0348 and 0.04 (.0052).

Regarding Mr. Turregano’s reference to the NOX rate for Evangeline
unit 7-1 for 2006 as reported in “Data & Maps,” I explained that the
emissions module of “Data & Maps” only provides unit emissions data
as reported by the owners and operators, and that while such data is
often consistent with EPA-accepted data, that is not always the case,
and that the emissions data in the emissions data module of “Data &
Maps” is therefore not considered authoritative.  As an example, I
told Mr. Turregano that data from the “Data & Maps” emissions module
is not used for purposes of annual (or ozone season) reconciliation, and
that only EPA-accepted values are used for such purposes.

I concluded my discussion with Mr. Turregano by reiterating that the
EPA-accepted annual average NOX rate value for Evangeline unit 7-1 of
0.03 lb/mmBtu was calculated in accordance with formula F-10 of Appendix
F of 40 CFR part 75, and that EPA would therefore continue to rely upon
the 0.03 lb/mmBtu annual average NOX rate value in determining CAIR NOX 
annual trading program CSP allocations and denial of such allocations
under 40 CFR 97.143 for Evangeline unit 7-1 for 2007 and 2008.

Note:  For ease of reference, I have appended the EDR feedback report
for the Evangeline facility for the 4th quarter, 2006, to this memo.   
          UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

                            January 30, 2007  

Dear Certifying Official:

 

Thank you for your Quarterly Report submission for Fourth Quarter

2006.  This feedback report contains detailed analytical results from

EPA's Emissions Tracking System (ETS).  These results include Summary

Data Tables for cumulative emissions values (SO2, CO2, NOx Emission Rate

and NOx Mass Emissions) and Heat Input.  This report also describes

any data errors found by ETS in the quarterly report, and informs you

of any required actions necessary to resolve the error(s).

 

(A)  FOLLOW-UP "QUARTERLY REVIEW" AUDIT FOR 4th QUARTER 2006

 

Beginning January 5, 2007 EPA will conduct a follow-up "Quarterly

Review" audit of the Monitoring Plan and QA test data (RATA, Linearity,

etc.) contained in each quarterly report received for 4th Quarter 2006.

Please note that this audit also includes Appendix D Fuel Flowmeters

and Appendix E NOx monitoring systems.

 

EPA will E-mail the Monitoring Data Checking (MDC) feedback reports

from this audit to the DR/AAR and the staff CEM Contact(s) identified

in EPA's CAMD Business System.  For most sources the "Quarterly Review"

audit feedback will include results from an analysis of the validity

of the reported hourly emissions data, based on the Monitoring Plan,

QA test history, and other relevant information.  Please note that the

EPA may require you to resubmit quarterly reports for one or more

calendar quarters based on the audit results, especially if the

audit identifies unresolved data and/or QA issues from prior quarters.

 

(B)  4th QUARTER 2006 ETS USER BULLETIN

 

WEB SITE:  The Clean Air Markets Programs Web site address is:

            http://www.epa.gov/airmarkets/

 

*** REMINDER ***  The deadline for 4th Quarter 2006 quarterly report

submissions is Tuesday, January 30, 2007.

 

The "4th Quarter 2006" ETS User Bulletin can be obtained from our

Web site at:

   http://www.epa.gov/airmarkets/reporting/bulletins/4q06bul.html

 

Here's a summary of the items covered in the Bulletin:

 

1)  4th Quarter 2006 Submission Deadline - Tuesday, January 30, 2007.

2)  Monitoring Data Checking (MDC) software, v4.2.56 released
11/17/2006.

3)  Updated ETS-FTP v2.0 available (March 2005).  If you are still using

    ETS-FTP V1.0 or V1.1, be sure to upgrade to V2.0.  You can download

    the software installation package from our website at:

      http://www.epa.gov/airmarkets/reporting/etsftp

4)  Guidance for newly constructed units - submission of Certificate of

    Representation, Monitoring Plan/Certification Test Data.

5)  EPA Mainframe/SecuRemote Password Policies and Guidelines.

6)  ETS Tolerance Tables for Recalculated vs. Reported Emission

    Values (updated January 2006).

7)  ETS Active Error Code list (updated September 2006).

 

 

QUARTERLY REPORT ANALYSIS

 

The EPA received a quarterly report for the Unit/Stack/Pipe ID displayed

in Table 1, below.  EPA's Emissions Tracking System processed the report

on the date and time listed below, and assigned a Status Code to the

report based on the analysis.  An explanation of the report's Status

Code and any actions you must take to resolve any outstanding issues

follows Table 1.  If the report received Status Code 5 (Critical Error)

or Status Code 6 (Rejected Report) it must be corrected and resubmitted.

 

Table 1.  Quarterly Report Receipt and Status Code Information

 

Report received for ORISPL:       001396

Facility Name:                    Evangeline Power Station (Coughlin)

Stack/Unit/Pipe ID:               MS7A

Status Code for this report:      10

Submission Year:                  2006

Submission Quarter:               4

Date:                             01/30/2007

Time:                             9:25

Submitter User ID:                KRF

Submission Account:               ETSP  (ETSP=Official, ETSD=Test)

Receipt ID:                       191514

 

EXPLANATION OF YOUR QUARTERLY REPORT STATUS CODE LISTED IN TABLE 1

 

STATUS CODE 10:  ETS Detected No Reporting Errors, Future Action May Be

                 Required

 

Explanation:

 

The EPA has accepted your report.  No errors were detected in the report

based on the automated checks performed by the EPA's mainframe Emissions

Tracking System (ETS), however please note that the EPA's followup

"Quarterly Review" audit of the Monitoring Plan data, QA Test Data

(including RATA, Linearity tests, and related information), and their

application to the reported hourly data may identify issues that will

require resubmission of this quarterly report at a later date.

 

The following items accompany this letter:  A Cumulative Data Summary

Table of Emissions Values for each Stack/Unit/Pipe ID contained in the

report and a File Summary indicating the number and types of records

in the quarterly report.

 

Required Action:

 

No immediate follow-up action is required at this time.  While no

errors were identified in your report based on the automated checks

performed by the mainframe ETS system, you may be required to resolve

issues identified during EPA's followup "Quarterly Review" audit.

If you need assistance in interpreting any of the accompanying

information, please contact me at the phone number or E-mail address

listed below.

 

If you have any questions regarding this correspondence, please feel

free to contact me at (202) 343-9196 or Shukla.Ujjval@epa.gov

as soon as possible.  Thank you for your attention to this matter.

 

                              Sincerely,

 

 

 

                              Ujjval Shukla

                              U. S. Environmental Protection Agency

                              Market Operations Branch

                              Clean Air Markets Division

 

 

<PAGE BREAK>

                4/2006 CUMULATIVE DATA SUMMARY TABLE

 

           ORISPL: 001396     Plant Name: Evangeline Power Station
(Coughlin)

 

                      Unit/Stack/Pipe ID: MS7A

--------------------------------------------------------------------

                    Hourly    Reporting  Cumulative Annual    EPA

                   or Daily   Period or    or Cumulative    Accepted

                              Quarterly    Ozone Season

--------------------------------------------------------------------

SO2                     0.0         0.0            0.0           0.0

CO2                     0.0         0.0            0.0           0.0

Heat Input              0.0         0.0            0.0           0.0

Ozone Heat Input

NOx Rate               0.03                       0.04          0.03

NOx Mass

Ozone NOx Mass

--------------------------------------------------------------------

DEFINITION OF TERMS

Hourly/Daily: Year-to-date value calculated from the hourly/daily
records

        reported for the current calendar year.

Reporting Period/Quarterly: Year-to-date value calculated by summing the

        current and prior quarter/reporting period totals (not
calculated

        for NOx rate).

Cumulative: Year-to-date value reported in RT 301 or the Ozone Season
value

        reported in RT 307.

EPA Accepted: The year-to-date or Ozone Season value selected by the EPA

        as the official value.

Ozone Season: The five month period from May 1 - September 30.

 

                      Unit/Stack/Pipe ID: MS7AA

--------------------------------------------------------------------

                    Hourly    Reporting  Cumulative Annual    EPA

                   or Daily   Period or    or Cumulative    Accepted

                              Quarterly    Ozone Season

--------------------------------------------------------------------

SO2                     0.0         0.0            0.0           0.0

CO2                     0.0         0.0            0.0           0.0

Heat Input              0.0         0.0            0.0           0.0

Ozone Heat Input

NOx Rate               0.00                       0.00          0.00

NOx Mass

Ozone NOx Mass

--------------------------------------------------------------------

 

                      Unit/Stack/Pipe ID: 7-1

--------------------------------------------------------------------

                    Hourly    Reporting  Cumulative Annual    EPA

                   or Daily   Period or    or Cumulative    Accepted

                              Quarterly    Ozone Season

--------------------------------------------------------------------

SO2                     2.6         2.6            2.6           2.6

CO2                513094.8    513094.8       513094.7      513094.8

Heat Input        8633797.0   8633797.0      8633797.0     8633797.0

Ozone Heat Input

NOx Rate               0.00                       0.00          0.00

NOx Mass

Ozone NOx Mass

--------------------------------------------------------------------

 

 

---------------------------------------------------------------------

º                     Quarterly Values Table                        º

º                                                                   º

º                 ORISPL: 001396    Unit ID: MS7A                   º

|-------------------------------------------------------------------º

º           º 1st Quarter º 2nd Quarter º 3rd Quarter º 4th Quarter
º

º-------------------------------------------------------------------º

º SO2       º 0.0         º 0.0         º 0.0         º 0.0        
º

º CO2       º 0.0         º 0.0         º 0.0         º 0.0        
º

º Heat Inputº 0           º 0           º 0           º 0          
º

º NOX Rate  º 0.04        º 0.04        º 0.03        º 0.03       
º

º NOX Mass  º             º             º             º            
º

º Operating º 1025.90     º 1695.18     º 1819.40     º 923.95     
º

º Time      º             º             º             º            
º

---------------------------------------------------------------------

 

NOTE: The values that appear in this table are derived from the
following

hourly record types:

 

SO2 - RTs 310, 313, 314, 360

CO2 - RTs 330, 331, 360

NOx Rate - RTs 320, 323, 324, 325

Heat Input - RTs 300, 360

NOx Mass - RT 360

 

 

---------------------------------------------------------------------

º                     Quarterly Values Table                        º

º                                                                   º

º                 ORISPL: 001396    Unit ID: MS7AA                  º

|-------------------------------------------------------------------º

º           º 1st Quarter º 2nd Quarter º 3rd Quarter º 4th Quarter
º

º-------------------------------------------------------------------º

º SO2       º 0.0         º 0.0         º 0.0         º 0.0        
º

º CO2       º 0.0         º 0.0         º 0.0         º 0.0        
º

º Heat Inputº 0           º 0           º 0           º 0          
º

º NOX Rate  º 0.00        º 0.00        º 0.00        º 0.00       
º

º NOX Mass  º             º             º             º            
º

º Operating º 0.00        º 0.00        º 0.00        º 0.00       
º

º Time      º             º             º             º            
º

---------------------------------------------------------------------

 

 

---------------------------------------------------------------------

º                     Quarterly Values Table                        º

º                                                                   º

º                 ORISPL: 001396    Unit ID: 7-1                    º

|-------------------------------------------------------------------º

º           º 1st Quarter º 2nd Quarter º 3rd Quarter º 4th Quarter
º

º-------------------------------------------------------------------º

º SO2       º 0.5         º 0.8         º 0.9         º 0.4        
º

º CO2       º 89977.3     º 158171.0    º 177109.8    º 87836.7    
º

º Heat Inputº 1514050     º 2661534     º 2980198     º 1478015    
º

º NOX Rate  º 0.00        º 0.00        º 0.00        º 0.00       
º

º NOX Mass  º             º             º             º            
º

º Operating º 1025.90     º 1695.16     º 1819.40     º 923.95     
º

º Time      º             º             º             º            
º

---------------------------------------------------------------------

 

 

No Errors Found in Quarterly Report.

<PAGE BREAK>

                 U.S. EPA - EMISSIONS TRACKING SYSTEM (ETS)

         EDR ERROR REPORT FOR ORISPL 001396, UNIT ID MS7A, 4/2006

                          Run on January 30, 2007  

No Errors Found in Quarterly Report.

<PAGE BREAK>

                 U.S. EPA - EMISSIONS TRACKING SYSTEM (ETS)

         EDR FILE SUMMARY FOR ORISPL 001396, UNIT ID MS7A, 4/2006

                          Run on January 30, 2007

 

                        RECORD    ORISPL/   RECORD

                         TYPE     UNIT ID   COUNT

                        ------    -------   ------

 

                         100      001396        1

                         101      7-1           5

                         101      MS7A          5

                         101      MS7AA         2

                         102                    1

                         201      MS7A        933

                         211      MS7A        933

                         230      MS7A        312

                         300      MS7A       2208

                         301      MS7A          1

                         320      MS7A        935

                         503      MS7A          1

                         510      MS7A          3

                         520      MS7A          1

                         530      MS7A          3

                         531      MS7A          1

                         535      MS7A          1

                         536      MS7A          1

                         601      MS7A         18

                         602      MS7A          6

                         300      MS7AA      2208

                         301      MS7AA         1

                         503      MS7AA         1

                         510      MS7AA         3

                         520      MS7AA         1

                         530      MS7AA         3

                         531      MS7AA         1

                         535      MS7AA         1

                         536      MS7AA         1

                         300      7-1        2208

                         301      7-1           1

                         303      7-1         935

                         314      7-1         935

                         330      7-1         935

                         504      7-1           1

                         505      7-1           1

                         506      7-1           2

                         507      7-1           1

                         510      7-1           3

                         520      7-1           4

                         535      7-1           1

                         540      7-1           1

                         585      7-1           5

                         586      7-1           2

                         587      7-1           1

                         628      7-1           2

                         900                    1

                         901                   12

 

QUARTER/YEAR:  4/2006

TOTAL NUMBER OF RECORDS:  12642

<PAGE BREAK>

MONITORING PLAN SUMMARY

 

According to the monitoring plan information in the quarterly data file

(RT 5XX), SO2 is being monitored at the following Unit/Stack/Pipe
location:

 

Stack/pipe

----------

7-1

 

And the plant is configured so that

 

7-1    is a stack/pipe for unit(s):  7-1

 

The table below includes a list of Monitoring System IDs, the parameter

monitored, and the monitoring location (Unit/Stack/Pipe ID). 
Information

in this table was taken from RTs 510 from the quarterly data file.  If
no

information appears in the table, then there are no continuous emission

monitoring systems for the unit.

 

Unit/Stack/Pipe ID     SO2     NOx     CO2     FLOW     OPACITY

------------------     ---     ---     ---     ----     -------

      MS7A                     7A1

      MS7AA                    7A1

      7-1

 

 

This information will be used during the annual reconciliation process
to

connect stacks and pipes (monitoring points) to units (allowance
accounting

points).  If you do not agree with the summary above, please correct the
500-

level records in your next submission or call your EPA assigned analyst.

 

 

DAILY CALIBRATION SUMMARY FOR UNIT/STACK ID MS7A

 

                              Number of Passed         Number of
Reporting

Pollutant or Parameter     Calibration Error Tests     Days in the
Quarter

----------------------     -----------------------    
-------------------

         SO2                         ***                       ***

         NOx                       104.0                        44

         CO2                         ***                       ***

         O2                         51.5                        44

         Flow                        ***                       ***

 

 

DAILY CALIBRATION SUMMARY FOR UNIT/STACK ID MS7AA

 

                              Number of Passed         Number of
Reporting

Pollutant or Parameter     Calibration Error Tests     Days in the
Quarter

----------------------     -----------------------    
-------------------

         SO2                         ***                       ***

         NOx                         ***                       ***

         CO2                         ***                       ***

         O2                          ***                       ***

         Flow                        ***                       ***

 

 

DAILY CALIBRATION SUMMARY FOR UNIT/STACK ID 7-1

 

                              Number of Passed         Number of
Reporting

Pollutant or Parameter     Calibration Error Tests     Days in the
Quarter

----------------------     -----------------------    
-------------------

         SO2                         ***                       ***

         NOx                         ***                       ***

         CO2                         ***                       ***

         O2                          ***                       ***

         Flow                        ***                       ***

This completes the information for this file and no other information
will

be forwarded by EPA.

 Mr. Turregano was informed that under Equation F-10 in Appendix F of 40
CFR part 75 (and as described in pgs. 62 and 63 of the Emissions Data
Reporting Instructions (EDR) v. 2.2), the quarterly and cumulative NOX
emission rates for a unit are calculated by applying a straight
arithmetic average of the hourly NOX emission rates for all unit
operating hours in the quarter, and calendar year-to-date, respectively.
 Such rates are required to be reported to the nearest thousandth of a
pound per mmBtu.

  The owners and operators of Evangeline unit 7-1 reported NOX emission
rate values for 5,576 hours in 2006, and the sum of those NOX rate
values equaled 193.959, resulting in an annual average NOX rate in 2006
of 0.0348 lb/mmBtu (193.959 divided by 5,576).

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