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From: Case Gilson <case@armer-norman.com> <br />Sent: Tuesday, September 13, 2022 7:28 AM <br />To: EH-UST <ust@sjgov.org> <br />Cc: Keith Powers <Keith.Powers@albertsons.com>; Tyler Olea <Tyler.Olea@albertsons.com>; Aldo Basurto <br /><aldo.basurto@safeway.com> <br />Subject: Safeway 2707, 6425 Pacific Ave, Stockton - Secondary Containment 2022 <br />Good day SJCEHD HazMat/UST <br />I am writing to align on secondary containment status at the subject facility. Recent 36-mo periodic testing documented <br />"fail" for all secondary piping pressure integrity and UDC hydrostatic integrity but the testing was attempted with all <br />secondary piping termination boots removed. With the new drip-floor UDC adapter frames at the site, the UDC necks <br />are now significantly closed and thus the piping termination boots are not accessible from grade for secondary testing. <br />To make the UDCs and the secondary piping testable, valved secondary jumpers will be installed for all termination <br />boots. This configuration allows each UDC to act as "point of earliest detection" containment structure for the <br />secondary piping and to be "closable" from grade for periodic secondary testing. Test jumper valve remains open to <br />UDC floor for site operation and is closed only for testing (jumper lead/valve pulled up to grade via pull cord/leash). <br />Secondary communication will remain testable/provable (from end of piping run to STP). <br />I will transmit 48-hour notice of secondary testing as soon as we configure the site (jumper installation) and are ready to <br />test the site. This will be to satisfy the current 36-mo periodic. <br />Regards <br />Case Gilson <br />Armer/Norman & Associates, Inc. <br />CA License 256896 <br />925/671-9200 - Armer/Norman office <br />925/499-1032 - mobile (text is best) <br />case@armer-norman.com