Precision Tank Tightness Testing

Tank Tightness Testing checks the integrity of the tank, including the portion containing liquid and the empty portion of the tank, known as the Ullage.  CT&T performs testing for completely empty USTs to tanks 90% full using state of the art vacuum/acoustic precision test equipment to complete a quick and accurate analysis.

Tank Tightness Testing helps identify suspected releases when release detection results (SIR, ATG, poor inventory data, etc.) indicate a possible release. Tank Tightness Testing is also recommended any time a facility changes ownership or is brought back on line after being temporarily closed for any period of time.

CT&T also tests large volume tanks (or other special circumstances) that requite extremely precise Tank Tightness Testing using chemical marker technology.

Line & Leak Detector Testing

CT&T completes volumetric testing of pressurized product lines and leak detector testing required for annual regulatory compliance.  These tests ensure your underground storage piping is secure and not releasing petroleum products into the ground.

Four different line testing methods are offered to test lines up to 1.2 million gallons in volume.

  • Hasstech Acurite Pipeline Tester
  • Estabrook EZY-chek Line Leak Detector
  • Pipeline Hydrostatic Diagnostic Test Method (PHDleak Test)
  • MD Leak Enhanced Leak Detection Method

Pressurized product lines must be equipped with electronic or mechanical line leak detectors. The leak detector is tested to check for proper function to ensure it detects and alerts your staff as designed.

Secondary Containment Testing

Secondary Containment Systems ensure that leaking components do not result in substantial damage to the environment or, potentially, the drinking water supply. Testing proper function of sumps, pipes, dispenser pans or spill buckets is a required and prudent practice.

CT&T conducts Hydrostactic Testing to verify components are still liquid tight. The interstitial spaces found in double walled tanks and lines are tested by pressure decay or vacuum. Our advanced pinpoint leak location services identify the exact location of subsurface leaks.

Stage 1-2 Vapor Recovery Testing

CT&T Vapor Recovery System Testing conforms to all CARB test procedures as well as applicable state and regional requirements to keep you in compliance with air quality regulations.

Vapor recovery testing determines proper function of all elements of the Stage I and Stage II system. A malfunctioning system could release unacceptable levels of volatile organic compounds (VOCs) into the atmosphere, creating the potential for significant financial loss for the facility owner. Gasoline UST systems located in specified attainment areas are required to maintain, operate and test Stage II Vapor Recovery equipment.  Depending on your site's location, regulations may require the following tests:

  • Pressure Decay Testing
  • Dynamic Back Pressure Testing
  • Air to Liquid Ratio Testing
  • Vapor to Liquid Ratio Testing
  • Healy Vacuum Return
  • Tightness Testing
  • Healy Booted Nozzle Testing
  • Pressure/Vacuum Vent Cap Testing
  • Flow Rate Determination Testing
  • Liquid Removal Device Testing

Beginning in January 2011, the Environmental Protection Agency (EPA) mandated that all Gasoline Dispensing Facilities (GDF) with a monthly throughput of 100,000 gallons or more conduct Stage I Vapor testing every three years.  This includes:

  • Verification of submerged fill 12" or 6" from tank bottom (Dependent upon year of install)
  • Verification of installed Vapor Balance System for storage tank loading
  • Pressure Decay Testing
  • Pressure/Vacuum Vent Cap Testing