Maria, as per your request, please see the attached data:

All the below figures were calculated using the 4500 hp factor on the 
mainline ( TCV-12 Clark ) units
and 450 hp on the ( 4520 Waukesha ) auxillary. Units 601, 602, and 603 are 
the mainline units. Unit 621 is the 
auxillary engine and runs back up power, if needed.  The year 1997 was 
figured by Kerry Welch who no longer is with us.  
1998, 1999, and 2000 operating hours and fuel use numbers were calculated 
using the spread sheet that was provided by our mechanical analyst.
 



Engine hours     601       602      603       621         Fuel Volume ( MM 
scf / yr )          601             602              603             621

1997                    3818     1973   2847       
337                                                                     
27.98         27.98            27.98         3.53

1998                    1564          70     993        
24                                                                       
62.43           2.79           39.64           .07

1999                     457          186    218         
78                                                                      
18.24           7.43            8.70             .24

2000                      426        747     2644      
454                                                                     
17.01           29.82         105.55       1.39

The total throughput on condensate has been ( 0 gallons ) for 1997, 1998, 
1999, and 2000. This is due to the fact that our narutal gas supply changed 
in 1997 to a more dry natural gas and therefore, there was no liquids 
associated with the gas.

Again I apologize the inconsistency in the data.  We have had employee 
turnovers at the facility and different spreadsheets were used to provide the 
information to the EPA.  We are in the process of standardizing our data 
collections to eleminate this problem in the future.  I hope this information 
will help in the permit review process.  Again please accept my apologizes in 
the data collection errors.
 
 




Okpala.Maria@epamail.epa.gov on 02/15/2001 01:50:35 PM
To: lcampbe@enron.com
cc:  

Subject: FOLLOW-UP INFORMATION ON THROUGHPUT AND OPERATING HOURS


Please confirm the following throughput and operating hours.  The
information below was given to me by Butch Russell

Compresssor Engine Operating hours  for 1997 is 38.87 *106 hp-hr??"         "                   "            "               "          "?1998  is 11.82 * 106 hp-hr

 Let me know the operating hours for 1999, and 2000.   Which HP was used in
the calculation.


The throughput found in the application  for 1998, the annual throughput
for condensate  (gal/yr) is 115, 165 while the maximum hourly throughput
(gal/yr) is 2,500.   The May 1999 data for both the annual throughput and
the maximum hourly throughput for May 1999 read 0.  Please confirm this and
let me know.

Thanks