Pom Pom Ganguli welcomed the SRC members and the audience to the meeting. The topics listed below were discussed during the meeting.

• Responses to Comments from September 28^th Meeting
• New BACT - Part B Listings
• Other Business

There were no comments on the September 28^th meeting.

Following are the responses to comments presented at the September 28^th meeting.

AQMD staff have inspected the Renzacci petroleum solvent dry cleaning equipment and verified that it does have a temperature gauge that can be used to determine compliance with the permit condition that the drum temperature be reduced to < 95 degrees F before the door is opened. The gauge is not in plain sight, but it isn't necessary that it be because the unit has an interlock to prevent the door from opening until the temperature is low enough. However, there are still some issues regarding this BACT requirement and proposed amended Rule 1102. (Marty Kay, AQMD)

As shown in the handout, the Ceryx QuadCat catalytic converter has a lean NOx catalyst, a catalytic diesel particulate filter for PM, CO and HC, a fuel injection system to raise the exhaust temperature and provide a reducing agent, and a heat exchanger to recover heat. There is no special regeneration cycle. The diesel particulate filter is continuously regenerating. (Marty Kay, AQMD)

Based on information submitted with the application, applicant did not use any materials that contained toxic compounds regulated under Rule 1401 at the time the application was evaluated. The condition was a standard permit condition. (Marty Kay, AQMD)

Poly Pak prints, converts and extrudes a variety of plastic bags, envelopes and packaging materials to serve its customers' needs. Poly Pak also manufactures its own packaging products for sale. The facility operates eleven presses. In seven of its presses, the facility uses high VOC materials that do not meet VOC standards of Rule 1130 and 1171. The press has a permanent total enclosure, and emissions from these presses are vented to an RTO, which has 97.7% overall tested control efficiency. The RTO is conditioned to be operated with an overall VOC control efficiency of at least 95%. In the remaining four presses, the facility used conventional water-based inks. (Marty Kay, AQMD)

Discussion: There was a suggestion that in some cases it is advisable to allow the facility to comply with either 1) 95% minimum overall control efficiency or 2) a maximum emission concentration. A 95% control efficiency can be difficult to achieve with a low inlet concentration if the facility sometimes uses low-VOC materials. (Gary Rubenstein, Pompom Ganguli, AQMD)

There was a question on what is the minimum overall control efficiency (i.e. 75% or 95%) that the District currently requires of BACT for this type of application. Staff will report back to the SRC committee on this issue. (Russell Greenhouse, Katy Wolf, IRTA; Marty Kay, Pompom Ganguli, AQMD)

There was a question on the startup date of the press and the control device. Staff responded that the press was in operation since 1994. The facility used water-based inks back then. RTO/PTE was installed and operated since 1998. From 1998, the facility has been using high VOC inks, and RTO/PTE to control emissions from this press. (Russell Greenhouse, Fluid Ink; Minh Pham, AQMD)

There was a question on cost of the RTO/PTE for this application. Staff responded that the facility preferred to keep this information confidential. (Rita Loof, Rad Tech; Minh Pham, AQMD) Generally, cost of PTE varies widely, approximately $300,000 or more; sometimes it may cost more than RTO. (Russell Greenhouse, Fluid Ink)

This equipment is designed to use UV inks exclusively in printing labels. The facility uses a cleanup solvent, acetone, that contain no VOC. The press is operated under a facility's cap of 780 lbs in any one calendar-month. This facility operates six UV flexographic presses and four flexographic presses using mostly water-based and some UV inks. For these four presses, soap and water are mostly used and acetone is sometimes used for cleanup. (Marty Kay, AQMD)

Discussion: There was a question on cleanup materials for UV inks. Chris Creel of CCL Label confirmed that the facility has been using acetone to clean up UV inks, and soap and water to clean up water-based inks; and since UV inks do not polymerize without being exposed to UV light, the facility may need less solvents to cleanup UV inks compared to conventional inks. (Pom Pom Ganguli, AQMD; Chris Creel, CCL Label; Russell Greenhouse, Fluid Ink)

There was a question on permit description of this press. Chris confirmed that this press actually has 12 UV dryers, one at each printing station. (Chris Creel, CCL Label; Russell Greenhouse, Fluid Ink)

There was a question on why an operation permit is required for this press which uses UV inks and exempt solvents for cleanup materials. (This application was for a modification adding several printing stations to an existing press.) Staff will investigate the requirements in Rule 203 and 219; discuss with Engineering & Compliance staff; and report back to the SRC committee on this issue. (Audience; Chris Creel, CCL Label; Russell Greenhouse, Fluid Ink; Greg Adams, SDLAC; Marty Kay, AQMD)

This press is a ten color lithographic printing press issued a permit this year. The press uses UV inks, fountain solution of less than 8% VOC by volume, and wash solutions with vapor pressures of less than 3 mmHg @ 20^oC. (Marty Kay, AQMD)

Discussion: Ken Susuki (PIASC) suspected that the press is not designed for UV inks but for conventional lithographic inks, and has an UV coating unit at the end. Ken requested staff to verify this information. Staff will report back to the SRC committee on this issue. (Kenneth Suzuki, PIASC; Pom Pom Ganguli, AQMD)

Pom Pom asked the SRC for suggestions on 1) frequency of future SRC meeting, and 2) whether or not there is a need to hold separate meetings for major source BACT/LAER and minor source BACT (MSBACT). Pom Pom also suggested SRC members to maintain their attendance, and announced that there would be more technology briefing in the future.

Majority of the SRC's members and the audience proposed to keep monthly SRC meeting. Since change to the MSBACT was expected to be infrequent, SRC suggested staff to hold longer meeting if needed, but not to separate meetings for major and minor source BACT.

Larry Ashton of Rayack Boiler urged staff to come to a decision as soon as possible on what small boiler BACT should be.

There was no further discussion and the meeting was closed. Mark Hamilton provided a presentation on "QuickWater Direct Contact Hot Water Heaters - Ultra Low NOx and Ultra High Efficiency". The next SRC meeting is scheduled for November 30, 2000, in Conference Room GB. Meeting information is available on the AQMD web page.

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