60
%
SO
C
2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018
62
64
66
68
70
72
74
RESULTS
The graphs were all over the place. Some states’ SOC
went way up, some went down (how can SOC go back-
ward) and many stayed about the same. Trying to correlate
operator training to SOC seemed
state-speci;c.
My colleague Marcel Moreau
and I presented my ;ndings in
September 2018 at the National
Tanks Conference in Louisville,
Kentucky. Our audience represent-
ed enough states that we presented
the SOC graphs for each state
and territory and instructed the
audience to vote.
Did operator training help, yes
or no? If you’re unsure, why?
The voting kept everyone en-
gaged and illustrated the semiqual-
itative nature of the study.
I summarized the whole country to show trends. Figure
2 shows how much the SOC changed over time. Dark blue
states didn’t do so well. Palest blue states logged up to a 9%
Third Quarter 2019 | PEI JOURNAL | 5 7
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1518
Gauge benefits
•;Easy;to;read;from;a;distance;of;30’
including;a;wide;viewing;angle
•;Easy;to;install;and;calibrate
•;Vapor;tight;to;prevent;lens;fogging
(tanks up to 25’ in height)
Mechanical Tank Top Gauge
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Figure 2:
NET SOC Change
2008-2018
0 or less SOC 1% to 9% SOC 10% to 19% SOC 20+% SOC
