Issue Date: November 14, 1997
Revision Date: April 11, 2011 

National Environmental, LLC

(formerly Advanced Telemetrics, Ltd.)

Tanknetics SIR, Version 2.1


Certification Leak rate of 0.2 gph with PD = 99.9% and PFA = 0.1%. 
Leak rate of 0.1 gph with PD = 99.9% and PFA = 0.5%.
0.10 gph for leak rate of 0.2 gph. 0.05 gph for leak rate of 0.1 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 45,000 gallons for single tanks. 
Maximum of 45,000 gallons cumulative capacity for manifolded tank systems with no more than 4 tanks in system.
Data Requirement Minimum of 28 days of product level and flow through data.
Comments 51% of data sets evaluated were from manifolded tank systems. 
Of 41 data sets submitted for evaluation, all were analyzed with conclusive results. 
Median monthly throughput of tanks evaluated was 18,897 gallons. 
Leak rates ranging from 0.043 to 0.234 gph were used in evaluation. Data sets evaluated were supplied by evaluator.


National Environmental, LLC

Evaluator:  Ken Wilcox Associates

560 CR 275

Tel:  (816) 443-2494

Water Valley, MS 38965

Date of Evaluation:  01/28/97

Tel:  (800)-520-4802  

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