p.1 

OAR Box 1384 

Prepped by Charmelle Mathews 

Document Number: 

187) ll-E-147 

Docket Number: 

A-94-52 

Printed 7/2/2008 8:42:09 AM Sheet 187 of 264 
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'i 04/09/98 THU 11:13 FAX 605 335 0268 

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RAVEN IND. 

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From; 

Date: 

Contact: 

Company: 

Contact Report 

Melanie Proctor, Pacific Environmental Services, Inc. (PES) 

April 8,1998 

Mr. Kurt Doeden 

Raven Industries, Inc. 

Telephone Number: (605) 336-2750 

Fax Number: (605) 335-0268 

; 

EPA AIR DOCKET 

Contact Summary: 

Ms. Proctor explained that PES is working with the U.S. EPA on the development of a 

national emission standard for the reinforced plastic composites industry. She added that Raven 

Industries was contacted to verify infonnation provided in the 1993 EPA screemng survey for their 

centrifugal casting process. Ms. Proctor pointed out that the EPA is in the process of establishing 

emission standards for all major sources of hazardous air pollutants (HAP) that reflect maximum 

achievable control technology (MACT). She explained that the EPA is currently reviewing any 

pollution prevention or reduction measures that are being used in centrifugal casting operations, in 

order to determine the MACT floor for this process. 

Ms. Proctor asked Mr. Doeden if Raven Industries is using any pollution prevention 

measures for their centrifugal casting process. She explained that such pollution prevention 

measures may include management or elimination of air flow through the centrifugal casting 

' : air, the resin, or the mold during application and cvrong^anc 

of HAP in the resin. Set Ni©-f<_ 

Mr. Doeden indicated that Raven Industries does not heat the air, the resin, or the mold in 

their centrifugal casting operation. He also pointed out that one end of each of the 12 molds is 

closed with an end cap. Mr. Doeden explained that air is drawn from the open end of the 12 molds. 

Mr. Doeden was not sure about the exact air flow drawn from each of the molds but he indicated that 

only one fan was used to draw air from the 12 molds and that this fan has a design air flow rate of 

12,000 cubic feet per minute (cfin). He added that the air flow from each mold would likely not 

exceed 1,000 cfm and could possibly be lower. 

(Contact report continued on second page) 

INFORMATION IS ACCURATE \^K> 

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04/09/98 THU 11:14 FAX 605 335 0268 RAVEN IND. llllflO,.^,03 , 

04/08/98 18:54 B19199410234 PES RTP NC igjooa/ooa ., 

Could you please verify that all the products produced by your facility using centrifugal 

casting are products that are used for corrosion-resistant applications? ^.4 . .fr\{ 

Mr. Proctor explained that the average weighted HAP content of Raven Industries' resins 

was calculated to be 49 percent based on infonnation that Mr, Doeden submitted to PES in 

November 1996. Ms. Proctor added that this average weighted HAP content was calculated based 

on the entire resin use at the plant including the resin use for filament winding, chop spray lay-up, 

and centrifugal casting. Ms. Proctor asked if distribution of resin usage is similar for all of their 

processes or if one process uses higher resin HAP contents than others. Mr. Doeden replied that the 

average weighted resin HAP content of 49 percent was representative of all their processes. 

INFORMATION IS ACCURATE tw 

7/ 
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' 04/09/98 THU 11:13 FAX 605 335 0268 RAVEN IND. ©001 

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RAVE N A 9452 

llrEINOUSTRIE S 

FAX NUMBER 605/335-0268 

CORPORATE SERVICES 

TO: p£$ 

ATTENTION: (Yle^^ ProcU^ 

FROM: YM.*-^ £>()£<$€ \A 

NUMBER OF PAGES INCLUDING COVER SHEET: _^_ 

DATE 4-WX. 

MESSAGE: 

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SIGNED: 

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