|
LIBRARY SECTION
From
time-to-time the NWGLDE publishes articles of interest to the petroleum storage
tank community and answers to Frequently Asked Questions (FAQs) that are
submitted through our website via the
Questions
@ NWGLDE.org email link. These articles normally appear in the New England
Interstate Water Pollution Control Commission
(NEIWPCC) publication
"L.U.S.T.Line." They are offered below in PDF format so you must
have the Adobe Acrobat� Reader�
utility installed.
- Wanted - UST
Inspectors
L.U.S.T.Line #34, March, 2000
"As we enter the new millennium and
the underground storage tank (UST) program deadlines are all part of
the past century, we need to take a fresh look at where we are
headed."...............
MORE >>
- FAQ #1 -
Can ELLDs Be Used
As
A Line-Tightness Test Method?
L.U.S.T.Line #48, November, 2004
"Companies such as Veeder-Root and INCON
are marketing their electronic line leak detectors (ELLDs) to the
regulated community as Line-Tightness Test Methods,"...............
MORE >>
-
FAQ #2 -
What�s All
The Fuss About Equivalency?
L.U.S.T.Line #49, March, 2005
"Some of the automatic electronic line-leak-detector listings in the
List of Leak Detection Systems (the List) talk about 'equivalent
leak rates.' What does that mean?"...............
MORE >>
-
FAQ #3 -
Old And New
CITLDS Protocols - What's That About?
L.U.S.T.Line #50, August, 2005
"Has any CITLDS equipment that was evaluated and third-party
certified using the old manufacturers� protocols been accepted by
the NWGLDE?"...............
MORE >>
-
FAQ #4 -
What Are The
CITLDS Protocol Throughput Limitations?
L.U.S.T.Line #51,
December, 2005
"Before we can discuss throughput, we must first know how it
is defined in the protocol. According to the CITLDS
protocol, throughput is the volume of product dispensed from
a tank in a month."...............
MORE >>
-
FAQ #5 -
Automatic
Mechanical Line Leak Detectors (MLLDs) - Part I
L.U.S.T.Line #52,
May, 2006
"Why do some MLLD manufacturers offer MLLDs that are
certified for multiproduct (e.g., gasoline, diesel), and
others for diesel only? When MLLDs were first introduced
(circa 1960),"...............
MORE >>
-
FAQ #6 -
Automatic
Mechanical Line Leak Detectors (MLLDs) - Part II
L.U.S.T.Line #53,
September, 2006
"Can an MLLD evaluated in a rigid pipeline system be used in a
flexible pipeline system? Due to the difference in bulk
modulus (amount
of stretching under pressure) between rigid piping and flexible
piping, MLLDs designed for use in rigid pipelines may not be
satisfactory for use in flexible-pipeline applications"................
MORE >>
-
FAQ #7 -
Leak Detection Equipment and
Alternative Fuels
L.U.S.T.Line #54,
February, 2007
"Is leak-detection equipment compatible with
alternative fuels? Third-party evaluations are a useful
tool to verify leak-detection equipment performance, but
evaluation protocols do not require testing for long-term
compatibility with any stored product. Because of this,
the NWGLDE makes no representations"................
MORE >>
- FAQ #8 -
Everything You Always Wanted To Know About
The NWGLDE Disclaimer
L.U.S.T.Line #55,
June, 2007
"In your last FAQ article, you referred to a
disclaimer on your website. What does this disclaimer mean to
those of us who regularly use the NWGLDE List?"................
MORE >>
- FAQ #9 -
What Is CITLDS Leak Detection All About?
L.U.S.T.Line #56,
August, 2007
"In this issue of FAQs from the National Work
Group on Leak Detection Evaluations (NWGLDE), we follow-up on a
FAQ from L.U.S.T.Line #50 (August 2005). At that time we
discussed protocols used for evaluating CITLDS without explaining
what CITLDS leak detection is all about. We now present the rest
of the story."................
MORE >>
- FAQ #10 -
ATG Probe Performance with Ethanol Fuels
L.U.S.T.Line #58,
September, 2008
"In this issue�s FAQs from the National Work
Group on Leak Detection Evaluations (NWGLDE), we discuss the
ability of ATG probes to perform leak detection in tanks
containing ethanol fuels."................
MORE >>
- FAQ #11 -
Questions About Sensors - Part I
L.U.S.T.Line #59,
November, 2008"
"As the new
secondary-containment requirements come into effect across the
country, electronic interstitial monitoring will soon
become the norm instead of the exception. Since electronic
interstitial monitoring usually involves some type of sensor, in
the next
two issues of FAQs from the National Work Group on Leak Detection
Evaluations (NWGLDE), the Work Group will answer questions
concerning sensors listed on the NWGLDE website at NWGLDE.org."................
MORE >>
- FAQ #12 -
Questions About Sensors - Part II
L.U.S.T.Line #60,
February, 2009"This FAQ is
broader in scope than the previous one. Because of the
Energy Act of 2005, The previous FAQ addressed interstitial
monitoring exclusively. In addition to addressing sensors
related to monitoring UST-system interstitial spaces, this FAQ
also discusses sensors used in vapor and groundwater monitoring
applications."................
MORE >>
-
FAQ #13 -
Finding Outdated Equipment on the NWGLDE
List
L.U.S.T.Line #61,
May, 2009
"This FAQ is
broader in scope than the previous one. Because of the
Energy Act of 2005, The previous FAQ addressed interstitial
monitoring exclusively. In addition to addressing sensors
related to monitoring UST-system interstitial spaces, this FAQ
also discusses sensors used in vapor and groundwater monitoring
applications."................
MORE >>
-
FAQ #14 -
A Short History of the NWGLDE
L.U.S.T.Line #62,
August, 2009
"This FAQ is
broader in scope than the previous one. Because of the
Energy Act of 2005, The previous FAQ addressed interstitial
monitoring exclusively. In addition to addressing sensors
related to monitoring UST-system interstitial spaces, this FAQ
also discusses sensors used in vapor and groundwater monitoring
applications."................
MORE >>
-
FAQ #15 -
More Questions about Throughput!
L.U.S.T.Line #63,
December, 2009
"This FAQ is
broader in scope than the previous one. Because of the
Energy Act of 2005, The previous FAQ addressed interstitial
monitoring exclusively. In addition to addressing sensors
related to monitoring UST-system interstitial spaces, this FAQ
also discusses sensors used in vapor and groundwater monitoring
applications."................
MORE >>
-
FAQ #16 -
Evaluating ATGs for a 0.1 gph Leak Rate
L.U.S.T.Line #64,
March, 2010
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we clarify how ATGs are listed
after being third-party evaluated for detecting a 0.1 gph leak."................
MORE >>
-
FAQ #17 -
Continuous Leak Detection Methods
L.U.S.T.Line #65,
June, 2010
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we discuss the differences
between the types of continuous leak detection methods that are
available for detecting leaks from single-walled underground
storage tank (UST) systems." ..................
MORE >>
-
FAQ #18 -
Unsupported Leak Detection Methods
L.U.S.T.Line #66,
December, 2010
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we discuss leak detection
methods that are no longer supported by the company that markets
them."................
MORE >>
-
FAQ #19 -
Adding Biodiesel Blends to NWGLDE
Leak-Detection Equipment Listings
L.U.S.T.Line #67,
March, 2011
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we discuss our policy for the
addition of biodiesel blends to our leak-detection-equipment
listings."................
MORE >>
-
FAQ #20 -
Getting the Most Out of the NWGLDE Website
L.U.S.T.Line #68,
June, 2011
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we look at the information that
is accessible from the NWGLDE website at www.nwglde.org."................
MORE >>
-
FAQ #21 -
Secondary- and Spill Containment Test
Methods
L.U.S.T.Line #69,
December, 2011
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we will discuss the reasons why
there is an absence of secondary- and spill containment test
method equipment listings."................
MORE >>
-
FAQ #22 -
Here's How to Determine if an NWGDLE Listing Is Applicable for
Use with Biodiesel Blends
L.U.S.T.Line #70,
May, 2012
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we will discuss the listings and
biodiesel."................
MORE >>
-
FAQ #23 - Do
All Implementing Agencies Recognize NWGLDE Listings as
Acceptable?
L.U.S.T.Line #72,
March, 2013
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we will discuss local agencies
use of NWGLDE listings."................
MORE >>
-
FAQ #24 - 2013: The 20th Anniversary of NWGLDE
L.U.S.T.Line #74,
June, 2014
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), the NWGLDE answeres some questions related to its 20th anniversary."................ MORE >>
-
FAQ #25 - What Is the Correct Operating Mode for My ATG—95% or 99%?
L.U.S.T.Line #75,
October, 2014
"In
this LUSTLine FAQs from the National Work Group on Leak
Detection Evaluations (NWGLDE), we discuss the different operating mode settings that can be used on an automatic tank gauge (ATG)."................ MORE >>
-
FAQ #26 - How to Get a New Leak Detection Device Listed on the NWGLDE Website
L.U.S.T.Line #78,
August, 2015
"In this issue’s FAQs from the National Work Group on Leak Detection Evaluations (NWGLDE) we discuss the procedure that must be followed before a leak detection device may be listed by the NWGLDE."................ MORE >>
-
FAQ #27 - How the NWGLDE List of Leak Detection Systems Can Be Used to Assist Compliance with the Revised 2015 Federal UST Regulation
L.U.S.T.Line #80,
June, 2016
"In this issue’s FAQs from the National Work Group on Leak Detection Evaluations (NWGLDE) we discuss how the NWGLDE List of Leak Detection Systems can still be used to comply with the revised 2015 Federal UST Regulation."................ MORE >>
-
FAQ #28 -Leak Detection Test Method Listings for Underground Piping Associated with Airport Hydrant Fuel Distribution Systems and Field-Constructed Tanks on the NWGLDE Website
L.U.S.T.Line #82,
June, 2017
"In this LUSTLine FAQs from the National Work Group on Leak Detection Evaluations (NWGLDE) we discuss revisions to “Large-Diameter Piping” leak detection methods in response to new release detection requirements for airport hydrant fuel distribution systems and field-constructed tanks."................ MORE >>
-
FAQ #29 -Statistical Inventory Reconciliation (SIR) The Rules, the Listing, the Site Report
L.U.S.T.Line #83,
December, 2017
"In this LUSTLine FAQs from the National Work Group on Leak Detection Evaluations (NWGLDE) we discuss the recently updated USEPA underground storage tank (UST) rules which included changes for statistical inventory reconciliation (SIR). What does this mean for sites where SIR is used as their leak detection method?"................ MORE >>
|
|
|
|