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.� .1 <br /> Alison Youngblood <br /> From: David.DeJong@us.jdsunph.com <br /> Sent: Wednesday, May 17, 2000 10:48 AM <br /> To: Alison Youngblood <br /> Subject: RE: Etch sink <br /> Alison, <br /> There are approximately 32 batches that get etched in one day and they etch <br /> 2 times each month. Given this, I would say our monthly rinse quantity <br /> would be approximately 288 gallons. <br /> David <br /> Alison Youngblood <ayoungblood@phs.hs.co.san-joaquin.ca.us> on 05/17/2000 <br /> 09:45:40 AM <br /> To: David DeJong/US/UNIPHASE <br /> cc: <br /> Subject: RE: Etch sink <br /> Mr. DeJong, <br /> Thank you for your information about your etching sinks. It appears that <br /> the nitric acid rinse tank will qualify the system for tiered permitting <br /> because it has a pH <2. 1 need to find out what quantity of the nitric <br /> acid <br /> rinse is generated in one month (i.e.. how many 4.5 gallon baths are used <br /> in <br /> one month). Please submit that information to me by May 31, 2000. <br /> As soon as I have that information I will be able to determine which tier <br /> you will fall into, and I will provide you all of the necessary paperwork. <br /> If you have any questions, please call me at 468-9848. <br /> Alison Youngblood <br /> -----Original Message----- <br /> From: David.DeJong@us.jdsunph.com [mailto:David.DeJong@us.jdsunph.com] <br /> Sent: Wednesday, May 03, 2000 1:55 PM <br /> To: ayoungblood@phs.hs.co.san-joaquin.ca.us <br /> Subject: Etch sink <br /> Hi Alison, <br /> I have to apologise for not contacting you sooner. I have been out for a <br /> couple weeks. <br /> While I was out manufacturing etched once. They etched again this past <br /> Monday and I was able to get some info for you. It looks like they etch <br /> once every two weeks. <br /> t <br />