Northern Region. Underground Storage Tank

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Sharleen Claire Todd
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1 California CUPA Northern Region Presents Underground Storage Tank Designated Operators Workshop

2 Workshop Agenda Definitions Tank Construction Corrosion Protection Spill Prevention Overfill Prevention Piping Systems UST Monitoring Testing requirements Unauthorized releases Financial Responsibilities Role of Designated Operator About the Exam

Systems UST Monitoring Testing requirements Unauthorized

3 Definitions CHSC California Health and Safety Code, Chapter 6.7 CCR California Code of Regulations UST Title 23, Chapter 16 Underground Storage Tank 10% of Tank Capacity is Underground Includes piping

4 SIR Statistical Inventory Reconciliation ATG Automatic Tank Gauging System Cathodic Protection Sacrificial Anode Impressed Current UDC Under Dispenser Containment

5 Single Wall Double Wall Intersititial Space / Annular Space

6 Tank Construction Common Features Riser Spill Bucket Product Piping Overfill Prevention Monitoring

8 Corrosion Protection All UST s and Piping Must Have Corrosion Protection, Section 2635 (a)(2) Rust Resistant Material Fiberglass construction Fiberglass coating on steel tank Cathodic Protection, Operating and Maintaining UST Booklet, p34-37 Sacrificial Anodes Anode Attached to the Tank Impressed Current Anode in the Ground Away From the Tank

steel tank Cathodic Protection, Operating and Maintaining UST Booklet, p34-37

9 Fiberglass Tank

10 Steel Tank

11 More About Cathodic Protection Sacrificial Anode Requires Cathodic Protection Specialist 6 Months After Installation and Then Every 6 Months After Installation and Then Every 36 Months Thereafter

After Installation and Then Every 6 Months After

12 More About Cathodic Protection Impressed Current Maintain -850 mvolts at all Times Maintain an Inspection Log Inspect System Every 60 Days Requires Cathodic Protection Specialist 6 Months After Installation and Every 36 Months Thereafter Retain Records for the Last 2 Cathodic Protection Tests for 61/2 Years

Cathodic Protection Specialist 6 Months After Installation and Every 36

13 Corrosion Protection Interior Tank Lining Inspect 10 Years After Lined Section 2663(h) Then Every 5 Years Thereafter Keep Records for the Life of the Tank

14 Spill Containment 5 Gallon Minimum Spill Bucket, Section 2635(b) Must be Corrosion Resistant Functioning Drain Valve Must be Kept Clean No Product, Water or Debris Must be Tested Annually

15 Spill Bucket

17 Overfill Prevention - 3 Types Operating and Maintaining UST Booklet 1. Audible and Visual Alarm Typically connected to ATG Alarm Must be Where Operator and Delivery Driver can See and Hear Alarm 2. Ball Float Valve Restrict Flow to Tank 3. Automatic Shut Off Device A Device in the Fill Pipe Which Shuts Off Flow

Operator and Delivery Driver can See and Hear Alarm 2.

18 Ball Float Valve

19 Positive Shut-off Overfill Valve

21 Overfill Prevention Requirements Must meet one of the following: Alert Delivery Driver When the Tank is 90% Full by Restricting Flow or Triggering Alarm OR Restricts Delivery Flow 30 Minutes Before Overfill, Must Occur at No More Than 95% Full Must Activate Audio/Visual Alarm at Least 5 Minutes Before Overfill OR Provide Positive Shut Off of Flow to the Tank When at 95% Capacity OR OR Positive Shut Off of Delivery Flow so That None of the Fittings at the Top of the Tank are Exposed to Product

22 Overfill Prevention There are 4 Acceptable combinations to meet this requirement: Ball Float with Sump & Sensor Max 90% Overfill Alarm (ATG) sump & sensor Max 90% Ball Float with Overfill Alarm (ATG) Max 95% Mechanical Flapper Drop Tube Max 95%

23 Overfill Protection What the Operator Must Do: Make Sure You Order the Right Amount Make Sure the Delivery Driver Monitors the Unloading Process Make Sure the Overfill Equipment is Working Properly

24 Piping Systems 3 Types of Piping Systems Pressurized Pushes Fuel to Dispenser Suction Pulls Fuel to Dispenser Gravity Dispenser is Gravity Fed

25 Turbine

26 Fiberglass Piping

27 Flexible Piping

28 Safe Suction vs. Conventional Suction Safe Suction Check Valve is Above Ground Safe because fuel drops back into the tank. No line test required if: Only one check valve per line (directly under dispenser) Piping slopes back to tank System operates under atmospheric pressure Conventional Suction Check Valve is Below Ground Line Tightness Test Every 3 Years Daily Monitor for Presence of Air in Pipeline (Cost/Quantity Wheel Jumps)

31 Under Dispenser Containment Acts as a Secondary Containment for Transition Piping in Dispenser Contains Releases From Dispenser and Fuel Filter

33 Under-Dispenser Containment

34 Sump Sensor Section 2630(d), 2641 (j) Located at the Lowest Point in the Sump Must Be Tested Annually

35 Line Leak Detector Flex Connector Sensor

36 Interstitial Space Monitoring Section 2630(d), 2641 (j) Tank Annular Sensor Dry Float Switch Senses Fuel and / or Water Leak into the Interstitial (Annular) Space Hydrostatic Sensor Interstitial Space Filled With Brine, Float Sensor Detects Change in Volume or Level System Must Be Certified Annually

37 Secondary Containment Piping Penetration (fitting) Reducer (test) Boot Primary Piping

39 Required Testing / Record Keeping Monitoring System Certification Title 23, Section 2712(b) Frequency Notify Agency Keep Records Annual 48 Hours 3 Years Line Leak Annual 48 Hours 3 Years Detectors Line Tightness Test Annual (depends on system) 48 Hours 3 Years Secondary Containment Testing 3 Years 48 Hours Corrosion Protection Impressed Current & Sacrificial Anode Corrosion Protection Tank Liner 60 day log for Rectifier Readings System Check Every 3 Years 10 years after installation then every 5 years 48 Hours 6 ½ Years 48 Hours For Life of Tank

40 Unauthorized Releases Recordable Does Not Escape Secondary Containment Does Not Increase Fire Danger Does Not Deteriorate Secondary Containment Rapid Clean Up (within 8 hours) Less Than 25 Gallons

41 Unauthorized Releases Reportable All Spills That Enter a Waterway Regardless of the size of the spill All Spills That Leave a Sheen All Spills That Leave a Sheen on Surface Water

42 Unauthorized Releases Reportable Unusual Operating Conditions Erratic behavior of dispenser Sudden Loss of Product Unexplained Water in the Tank Not required to report if equipment is found to be Not required to report if equipment is found to be defective but not leaking.

43 Unauthorized Releases Reportable Results From Leak Detection Indicate Suspected Release Not required to report if : Monitor Device is found to be defective, and is repaired immediately and further monitoring does not confirm initial suspected release.

44 SIR Section A Trained Professional Conducts a Statistical Analysis of Inventory, Delivery, and Dispensing Data Daily Inventory Reading Daily Readings supplied to SIR Vendor at Least Every 30 Days SIR Method Must be Able to Detect SIR Method Must be Able to Detect Leaks Rates of 0.2 Gallons per Hour

45 Financial Responsibility Dollars and Sense Booklet If Less Than 100 UST s $500,000 per Occurrence $1 Million Aggregate

46 Automatic Tank Gauging System Section 2643 Consists of a Probe Permanently Installed in the Tank, Wired to Monitor Level and Temperature ATG Systems automatically calculate changes in the product volume that can indicate a leak Must Pass 0.2 Gal/Hour leak Test Monthly System Must be Checked Annually

47 Automatic Tank Gauge Port

48 Line Leak Detector Section 2636(f)(2) 2 Types for piping with secondary containment Mechanical Slows the flow of product Electronic Stops the flow of product Must be Able to Detect a 3 gal/hour Leak Must be Tested Annually

49 Pressurized Piping and Monitoring Requirements

50 Line Leak Detector Section 2636(f)(2) Single Walled Piping, without secondary containment Must be Electronic Line Leak Detector Must be Able to Detect 3 gal/hour Leak Must Monitor Monthly for 0.2 gal/hour Leaks, or Annually for 0.1 gal/hour Leaks Must be Tested Annually

51 Role of the Designated Operator Section 2715 Must Pass the ICC Test by January 1, 2005 Owner Must Notify the Local Agency Within 30 Days of Change of Designated Operator Conduct Monthly Facility Inspections By July 1, 2005 (Then Every 12 Months) Train Facility Employees in Emergency Procedures and Operation of the UST System

52 Designated Operator, Monthly Inspections Review Alarm History Check Spill Containers Check UCD Check Sumps (that have had an alarm in the past month) Check that required testing and maintenance Check that required testing and maintenance have been completed

53 About The Exam 60 Multiple Choice Questions Each has one Best Answer All Questions / Answers are from a Required Reference Open Book References are Provided at the Test Center 90 Minute Exam Time $75 Exam Fee

54 About The Exam Computer Based Testing Administered by a Testing Company Test Center Personnel will help familiarize you with the computer and monitor you during the testing. There is time to practice on the computer, before the test, using sample questions. Test Results are Immediately Available

UST RULES CHANGES. Heather Peters, Environmental Specialist

UST RULES CHANGES. Heather Peters, Environmental Specialist UST RULES CHANGES Heather Peters, Environmental Specialist Today s Topic 2011 Rule package- what s left? Upcoming rule changes Federal Regulation Changes & Testing Protocols How are you doing? 2011 Rule