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aw <br /> ROUTINE MONITORING PROCEDURES <br /> Section 2632(d)(1)Title 23 CCR,Chapter 16 <br /> UNDERGROUND FUEL STORAGE TANK <br /> Facility Name: Pacific Bell dba AT&T (SKTNCAI I UE046) <br /> Facility Address: 907 LINCOLN ROAD STOCKTON <br /> Telephone: 209-478-0010 <br /> Tank Owner Name: SBC <br /> Tank Owner Address: 2600 Camino Ramon Room 3E000 San Ramon, CA 94583 <br /> Telephone: (866)492-6836 <br /> SBC Tank lD# 1158 <br /> UST Installed: 4000 -gallon double wall composite tank Containing Diesel Fuel for the <br /> Emergency Generator. <br /> Piping Installed: Double Wall "EnvroFlex" non-metallic flexible piping system for the product <br /> supply and return lines. The aboveground piping is single wall welded steel. <br /> A. The Frequency of Performing the Monitoring: <br /> Monitoring is performed continuously on the: <br /> • Double wall UST Interstitial space and its two sumps. <br /> • Monthly inspections of the TLS panel will be performed by SBC personnel to ensure <br /> proper operation. <br /> • Monthly inspections of the aboveground fuel piping will be performed by SBC personnel <br /> to ensure proper operation. <br /> • The Designated Operator will perform monthly inspections of the tank system. <br /> B. The methods and equipment used to perform continuous monitoring are: <br /> • VEEDER ROOT Fuel Tank Monitoring System Model#TLS-350 with CSLD <br /> • Internal site-fax modem with printer <br /> • 0.1 GPH magnetostrictive in-tank volumetric probe Model # 847390-106 <br /> • Floating liquid sensors in the: <br /> 1. UST Interstitial space sensor Model # 794390-420 <br /> 2. Piping sump sensor Model# 794380-352 <br /> 3. Fill sump sensor Model # 794380-352 <br /> • Electronic Tank Overfill Alarm Model #790091-001 <br /> Y:\HAZMATTACBELL\FORMS\SBC Monitor Plan template.doc <br /> Printed:July 21,2006 page 2 <br />