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 |
