We are bursting at the seams (and out of our booth!) to tell you about our second space at the MPA / MACS show this year to feature our Compliance Testing and Inspection Services.

EPA Regulations

EPA regulations mandate that containment sumps (STP’s), Under Dispenser Containments (UDC’s), and spill bucket fill ports associated with UST (Underground Storage Tank) systems be tested once every three years. This testing, which is required for all states, started in October 2018 for existing Double Wall (DW) systems.

New systems being installed and systems upgraded to DW also require testing, which means there are approximately 635,000 UST sites in the United States that require testing so far! If you want to know if the new regulations apply to your site, call us today at (800) 482-1200, or swing by our booth #307 at MPA/MACS to schedule a site survey.

How We Can Help

Oscar W. Larson Co. offers compliance testing and inspections for Spill Containers, Overfill Prevention Devices, Under Dispenser, and Containment Sumps in accordance with EPA’s 2015 Underground Storage Tank Regulations.

We offer the EPA certified DPleak (Deferential Pressure Technology) patented testing method to test your containment sumps using a seal and constant vacuum to find leaks. This allows us to pinpoint leaks and does not generate hazardous contaminated water to perform the testing.

Keep reading to see how our testing method stacks up against the others…

Other Methods

Current acceptable conventional sump testing methods allow for leaks of petroleum-based products into the environment greater than 1 gallon per hour… or the equivalent of 9811 gallons per year. This is considered a PASS!

For current lake or hydro-static testing, the standard acceptable leak rate for a 52-inch diameter sump is 1-1/8 GPH. Therefore, each time a leak test is performed, over a gallon of potentially contaminated water is allowed to enter the soil and still pass the current acceptable test criteria.

Our Method

The key benefits of DPleak technology are in the speed in which the testing is performed and the environmental considerations taken. Leaks are located while the testing is ongoing, and can be completed without service interruption. This means the customer (you!) keeps operating while the testing is taking place. The best part is that no hazardous contaminated water is generated to perform the testing.

How does it work?

  • Site survey performed to check if repairs need to be made prior to scheduling the test.
  • Tight seal created on sumps and dispensers. Dispensers will not need to be removed from islands to create the seal.
  • Air within the sump and dispenser removed to maintain a constant 10″ vacuum monitored by our certified technicians for the duration of the test.
  • Interior of the containment sprayed with a non-hazardous liquid solution that will bubble at the leak location.
  • All the components within the containment are tested, including the electrical connections and tank top fitting.
  • Leaks identified and photographs taken of each leak found within the containment.
  • Test results reviewed by our onsite certified technicians.
  • Additional review and verification performed offsite by a third party.
  • A certified pass/fail report of the test results provided to the customer with leaks identified for their records. (Other testing methods ONLY provide the pass/fail report.)
  • Upon report review, needed repairs are quoted for approval and scheduling.

We hope to see you at MPA/MACS this year! Ask us about our Compliance Testing and Inspection Services…. we would love to talk to you about our solution.