Click on the vendors specific EQUIPMENT NAME to go to that Listing.

These methods were evaluated at leak rates which are now in 40 CFR 280.252 of the 2015 EPA UST regulations.

Vendor Equipment Name Leak Rate / Threshold / Max Pipeline Capacity
ATMOS International Atmos Portable Tightness Monitor (ATPM) 0.0021% of pipeline volume/ 0.00105% of pipeline volume / 2,000 – 201,690 gallons
EFA Technologies, Inc. LeakNet 3.0 gph/2.2 gph/116,230 gallons.
Hansa Consult of North America, LLC HCNA Pipeline Leak Detection System, Version 2.0 0.002% of line volume (0.02 gph per 1000 gallons of product)/0.001% of line volume in gph/175,000 gallons.
HCNA Pipeline Leak Detection System, Version 2.1 0.068 gph/0.034 gph/5000 gallons.
HCNA Pipeline Leak Detection System, Version 2.2 0.00078% of line volume/0.00039% of line volume in gph/175,000 gallons.
Leak Detection Technologies MDleak Enhanced Leak Detection and Leak Location Method 0.005 gph/A containment system should not be declared tight when chemical marker is detected outside of the pipeline system./Not limited by capacity.
Praxair Services, Inc. SeeperTraceTM 0.1 gph/A pipeline system should not be declared tight when a confirmable level of chemical tracer in the sample collected exceeds the background level./Not limited by capacity.
Praxair Services, Inc.
(originally listed as Tracer Research, Corp.)
Tracer ALD 2000 Automated Line Tightness Test 0.1 gph/A pipeline system should not be declared tight when tracer chemical or hydrocarbon greater than the background level is detected outside of the pipeline./Not limited by capacity.
Vista Precision Solutions, Inc. (originally listed as Vista Research, Inc.) Model LT-100 Monthly Monitoring Method and Line Tightness Test Method, Version 1.0 (Manual Method) 0.2 gph/0.177 gph/3,400 gallons.
0.1 gph/0.077 gph/3,400 gallons.
Model LT-100 Monthly Monitoring Method and Line Tightness Test Method, Version 1.0 (Primary Method) 0.2 gph/0.148 gph/3,400 gallons.
0.1 gph/0.06 gph/3,400 gallons.
Model LT-100 Monthly Monitoring Method and Line Tightness Test Method, Version 1.0 (Segmented Method) 0.2 gph/0.174 gph/3,400 gallons.
0.1 gph/0.074 gph/3,400 gallons.
Model LT-100a Monthly Monitoring Method and Line Tightness Test Method, Version 1.0 0.2 gph at 50 psi/0.148 gph/3,400 gallons.
0.1 gph at 50 psi/0.06 gph/3,400 gallons.
Model LT-100a Monthly Monitoring Method and Line Tightness Test Method, Version 1.0 (Segmented Method) 0.2 gph at 50 psi/0.174 gph/3,400 gallons.
0.1 gph at 50 psi/0.074 gph/3,400 gallons.
Model LT-100a Hourly and Monthly Monitoring Method and Line Tightness Test Method, Version 2.0 (Segmented Method) 3.0 gph/2.936 gph/3,400 gallons.
0.2 gph/0.136 gph/3,400 gallons.

These methods were not evaluated at leak rates which are now in 40 CFR 280.252 of the 2015 EPA UST regulations.

Vendor Equipment Name Leak Rate / Threshold / Max Pipeline Capacity
ATMOS International ATMOS STMS Statistical Tightness Monitoring System for Airports 0.0019% of pipeline volume (0.000019 gph per gallon of product)/ 0.00095% of pipeline volume (0.0000095 gph per gallon of product)/ 300,000 gallons
Atmos Portable Tightness Monitor (ATPM) – for Bulk Piping and Hydrant Fuel Systems 0.0021% of pipeline volume/ 0.00105% of pipeline volume / 2,000 – 201,690 gallons
Caldon, Inc. Caldon PF2000 Pipeline Leak Detection System for Bulk Pipelines 10 gph/8 gph/212,000 gallons.
HansaConsult Ingenieurgesellschaft mbH HansaConsult Pressure-Step Tightness Control System (TCS) Pipeline Leak Detection System Leak rate of 0.004% of line volume (0.004 gph per gallon of product) in the pipeline segment being tested/0.002% of line volume in gph/Minimum of 22,700 gallons, maximum of 175,110 gallons (range of pipelines evaluated).
Leak Detection Technologies Pipeline Hydrostatic Diagnostic Test Method (PHDleak Test) 0.0017% of line volume gph (0.000017 gph per gallon of product)/0.00085% of line volume gph/1,127,000 gallons.
Vista Precision Solutions, Inc. (originally listed as Vista Research, Inc.) Model HT-100 Monitoring Method and Line Tightness Test Method, Version 2.1 0.00189% of line capacity (0.00189 gph per 1000 gallons of product)/0.000945% of line volume in gph/320,000 gallons
Model HT-100 Monitoring Method and Line Tightness Test Method, Version 1.0, Version 1.1 0.004% of line capacity (0.04 gph per 1000 gallons of product) for Version
1.0 /0.00282% of line volume in gph/612,954 gallons
0.00209% of line capacity (0.0209 gph per 1000 gallons of product) for Version 1.1 /0.000916% of line volume in gph/612,954 gallons
Model HT-100-n Monitoring Method and Line Tightness Test Method, Version 1.0, Version 1.1 0.004% ÷ √¯(n) of line capacity (for n=4, 0.02 gph per 1000 gallons of product) for Version 1.0 /0.00282% ÷ √¯(n) of line volume in gph; where n is the # of tests averaged together/612,954 gallons
0.00209% ÷ √¯(n) of line capacity (for n=4, 0.01045 gph per 1000 gallons of product) for Version 1.1 /0.000916% ÷ √¯(n) of line volume in gph; where n is the # of tests averaged together/612,954 gallons