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The formal inspection frequency of 5 years has been selected by the certified inspector.Category 2 tanks between 5,001 <br /> gallons and 30,000 gallons with a formal inspection schedule of 5 years will also require a leak test every 10 years by <br /> owner or owner's designee per STI guidelines. I would recommend discussing this with the plan writer.All testing <br /> associated with the standard should be discussed in the plan. <br /> The inspection frequency and categories can be found here.This is based on the 5`h edition of the standard.The 6' <br /> edition is the most current version but the frequencies are the same. <br /> Here is the definition of CRDM per the STI SP-001 standard– <br /> CONTINUOUS RELEASE DETECTION METHOD (CRDM)–A means of detecting a release of liquid through <br /> inherent design. CRDM is passive because it does not require sensors or power to operate. Liquid releases <br /> are visually detected by facility operators (See Appendix A for additional information). The system shall be <br /> designed in accordance with good engineering practice. Several acceptable and commonly used CRDM <br /> systems are: <br /> • Release prevention barrier (RPB) (described in definition of "Release prevention barrier") <br /> • Double-wall AST or double-bottom AST <br /> • Elevated AST, with or without release prevention barrier <br /> • Steel diked AST, open or closed top <br /> • Concrete exterior AST (CE-AST) with an integral secondary containment and interstitial monitoring opening <br /> Feel free to contact me with any questions. <br /> FREE classes presented by NES Inc. are available to all San Joaquin County Hazardous Waste, Underground Storage Tank, <br /> and Aboveground Petroleum Storage Facility Business Owners and Operators. List and schedule of classes can be found <br /> here. <br /> Thankyou, <br /> Cesar Ruvalcaba <br /> San Joaquin County Environmental Health Department <br /> Environmental Health Specialist <br /> 1868 East Hazelton Ave <br /> Stockton,CA 95205 <br /> $ (209)953-62131 A (209)464-01381 ® crui Rov.ore <br /> SANJADUIN <br /> F P `a. <br /> —GOtJNTY— <br /> Gremn<n g+owr hero <br /> From:Vignon-Fernandez, Denisse<DVIG NON Cn)nwpipe.com> <br /> Sent:Tuesday, May 7,2019 11:50 AM <br /> To: Ruvalcaba,Cesar<cruvalcabaC@siaov.ora> <br /> Subject: RE:APSA/SPCC inspection report response-10100 W. Linne Road,Tracy-PR0515795 <br /> Hello Cesar, <br /> Hope you are doing great. I just wanted to follow up on inspection conducted to our facility earlier this year.Attached <br /> you will find the SP-001 report from inspection to Diesel tank;we have taken into account the findings in attached <br /> executive summary to be addressed in the coming weeks <br /> 6 <br />