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Issue Date: November 22, 1995
Revision Date: January 11, 2001
SIR
Monitor
(originally listed as Environmental Management
Technologies)
SIR Monitor
STATISTICAL INVENTORY
RECONCILIATION TEST METHOD (QUANTITATIVE)
| Certification |
Leak rate of 0.1
gph with PD = 99% and PFA = 1%.
"If a method meets the requirement for detecting a leak rate of 0.1
gph, it will meet the requirement for 0.2 gph.", according to
"Standard Test Procedures for Evaluating Leak Detection Methods:
Statistical Inventory Reconciliation Methods", EPA/530/UST-90/007,
June 1990, Section 7.2.3, page 30. |
| Leak
Threshold |
0.05 gph.
A tank system should not be declared tight if the test result indicates a
loss or gain that equals or exceeds this threshold. |
| Applicability |
Gasoline,
diesel. |
| Tank
Capacity |
Maximum of 18,000
gallons. |
| Data
Requirement |
Minimum of 90
days of product level and flow through data are required before making the
first evaluation.
Following the first evaluation, subsequent evaluations are made based on
minimum of 30 days of data. |
| Comments |
Not evaluated
using data from manifolded tank systems.
Of 41 data sets submitted for evaluation, 5 were inconclusive.
Median monthly throughput of tanks evaluated was 14,600 gallons.
Leak rates of 0.05, 0.1, and 0.2 gph were used in evaluation.
Data sets evaluated were supplied by vendor. |
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SIR
Monitor
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Evaluator:
Nathan Adams,
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665 Evergreen Dr.
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Middle
Tennessee State University
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Murfreesboro, TN 37128
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Tel:
(615) 898-2644
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Tel:
(615) 896-4723
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Date of
Evaluation: 11/05/92
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