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San Joaquin Regional Transit District, 2849 E. Myrtle St., Stockton CA, 95205— SR0069410 Please provide copies of the manufacturer's certifications for all persons who will be installing any component that requires a certification. 4. On sheets FS9.03 and FS9.04, diagrams 3 & 4, do not illustrate how the primary piping transitions from steel to fiberglass. Diagram 1 illustrates flex connectors for this transition. Please correct the sheets by illustrating the flex connectors for the piping for diagrams 3 &4 for the sheets listed above. Resubmit the revised sheets. 5. On sheet FS9.03, diagram 2, the note for the ball float valve is not written clearly. Please utilize the language in the State Water Resources Control Board's Local Guidance Letter (LG) 150-2: "Underground Storage Tank Overfill Prevention Systems" - When using a combination of ball float valves and flapper valves, the flapper valve should be set below the level of the ball float valves. If the ball float valve is installed below the flapper valve, it may interfere with the normal operation of the flapper valve. Also a ball float valve was not illustrated on sheet FS9.04 for the gasoline UST. The fuel system equipment schedule lists a ball float vent valve for the gasoline UST. Please revise the wording to the note for diagram 2 on sheet FS9.03 to reflect the language in the LG 150-2. Please clarify if a ball float will be installed for the gasoline UST and if so, illustrate it for diagram 2 on sheet FS9.04. Resubmit the revised sheets. 6. On sheets FS1.00, and sheet FS2.16 in the upper left hand corner, the table labeled Equipment Schedule Fuel System has a row for GT-1 which is mislabeled as a "10,000 gallon diesel tank". This should read "10,000 gallon gasoline tank". Please revise the label and resubmit the corrected sheets. 7. On sheet FS2.16 the UST diesel product piping is illustrated to enter a transition sump into the filter room and exit above grade out to the fueling dispensers. A solenoid valve is shown on sheet FS9.01 plumbed in line. This configuration will not allow a product line leak detector to monitor the entire length of the diesel product piping. Since the above grade diesel product piping is connected to a UST system that is "substantially beneath the surface of the ground", it is regulated as having to meet the requirements for line leak detection and continuous monitoring of the secondary containment. The plans do not illustrate that continuous monitoring of the secondary containment for the above grade diesel product piping will be in place. Provide information on the plans for how the UST above grade diesel product piping will meet the requirements of the California Health and Safety Code, section 25290.1 for having line leak detection for the primary pipe and continuous 2