Compliance & Testing -

Required Testing: Yearly

Spill Catchment Basin test (fill, remote fill, Stage I) o Double wall Spill Catchment Basin must be tested per manufacturer specifications or in accordance with PEI RP 1200.
Piping Precision Tightness test for Pressurized Piping equipped with:
- Mechanical Line Leak Detector o Unless maintaining monthly piping release detection in accordance with COMAR 26.10.05.02D(2)(b)(ii).
- Electronic Line Leak Detector o Unless electronic line leak detector is performing daily, weekly, and monthly test in accordance with COMAR 26.10.05.02D.(2)(b)(ii). Must maintain a record of monthly leak detector line test.
Automatic Tank Gauge System certification (includes functional test of sump sensors)
Line Leak Detector test (mechanical and electronic)
Cathodic Protection test for Metal Piping (including flex connectors)
Field installed Cathodic Protection test for Metal Tanks
- For steel tanks that have had supplemental anodes or impressed current system installed

Required Testing: Every 2 Years

Piping Precision Tightness test for U.S. Suction
- Unless maintaining monthly piping release detection in accordance with COMAR 26.10.05.02D.(2)(b)(ii)
Helium test for existing Gasoline USTs
- Only when located in High Risk Groundwater Use Areas or Well Head Protection Areas

Required Testing: Every 3 Years

Required Testing: Every 5 Years

Containment Sump test (tank top, vent, dispenser, piping transition, etc.)
- Double wall Containment Sumps must be tested per manufacturer specifications or in accordance with PEI RP 1200
Secondary Piping Tightness test
- For double wall piping installed or replaced on or after January 12, 2009.
Tank Precision Tightness test
- Only for tanks greater than 550 gallons and less than 2,000 gallons using manual tank gauging as primary method of release detection.
Impressed Current Cathodic Protection assessment
- Only for UST systems with impressed current cathodic protection

per COMAR 26.10

Compliance & Testing