Ravena Bypass Michael.Pelan
to: Keith Barnett 07/22/2008 03:54 PM
Cc: Bill.Voshell, John.Reagan, Bruno.DeRobert Show Details

History: This message has been replied to and forwarded.

Keith:

I have spoken with our corporate director of process/environment and he has confirmed that the Ravena kilns do not have an alkali bypass. Alkalis

are removed by wasting dust from the ESPs.

Sorry for the confusion in the worksheet. Please make the necessary corrections.

I'll see you next week.

Regards, MikeRavena Cement Kilns Keith Barnett
to: michael.pelan 07/18/2008 12:25 PM
Cc: "Michael Laney" Show Details

Dear Mike:

This is a follow up to my voice mail.

Attached is the Part 1 questionnaire response for Ravena.

In item 10 it states that the long wet kilns at Ravena have an alkali bypass. My understanding was that alkali bypasses were only used on preheater or preheater/precalciner kilns. I called the contact listed on the form, John Regan, and left a message. He responded that there are no alkali bypasses at his facility Unfortunately he just left on vacation. The form shows an actual gas percentage, so is there some other type of bypass?

Keith W. Barnett USEPA/OAQPS/SPPD/MMG Mail Code D243-02 Research Triangle Park, NC 27711 919-541-5605 barnett.keith@epa.gov

### PART I- GENERAL FACILITY INFORMATION (Please fill out a separate form for each of your facilities)

1 . Name of legal owner of facility: Lafarge Building Materials, Inc.

2 . Name of legal operator of facility, if different from legal owner:

3 . Address of x legal owner or x operator: 12950 Worldgate Drive, Suite 500 Herndon, VA 20170

4 . Complete street address of facility (physical location):
Route 9W Ravena, NY 12143

5 . Provide facility mailing address if different from physical location:
PO Box 3 Ravena, NY 12143

6 . Name and title of contact(s) able to answer technical questions about the completed survey: John Reagan

7 . Contact(s)' telephone number(s): (518) 756-5026

Contact(s)' e-mail address(es): john.reagan@lafarge-na.com

8

. What fuels are fired in the cement kilns (if you have multiple kilns at this facility, note which kilns burn which fuels)

x coal x pet coke TDF Natural gas Other (specify )

9 . If coal is fired, indicate which type of coal is utilized: lignite Sub-bituminous (including waste coal)

x bituminous (including waste coal or gob) anthracite (including waste coal or culm)10. Kiln identification (or designation), design kiln capacity(tpy of clinker production) for each kiln located at this facility (do not include kilnsthat burn hazardous waste).Kiln IDDesignkilncapacity(Tons peryear)Does this kiln have an alkalibypass? If so, whatpercentage of the exhaust goesto bypass?Kiln Type(Wet, long dry, preheater,preheater/precalciner)Does this kiln have an in-lineraw mill? If so, what percentageof the time does the raw milloperate?1 1,093,961 4% Wet Long Not Inline2 1,125,746 4% Wet Long Not Inline

### 11. For each kiln noted in Part I, question 10, provide the following information:



### Kiln ID NO x 

### control 1 

### SO 2 

### control 2 

### PM control 3 

### THC/VOC control 4



### 1 Dust Insulflation Fuel Sulfur Limits regulated by

NYSDEC ESP None (N/A)

2 Dust Insulflation Fuel Sulfur Limits regulated by

NYSDEC ESP None (N/A)

1 

### Examples: low-NO x 

### burners; selective catalytic reduc tion (SCR); selective non-catalytic reduction (SNCR);

2 

### Examples: wet flue gas desulfurization (FGD; any type); dry scrubbing (any type); compliance (low sulfur) coal

3 

### Examples: fabric filter; cold-side electrostatic precipitator (ESP)

4 

### Examples: thermal oxidizer; carbon injection