Ontario Pipeline - Fall 2018 - 16

minimum standards that a component
meets will be adequate. In some instances,
the chemical makeup of the region's soil
(being too acid or alkaline) may degrade
the component's ability to perform as
expected and required.
If the person in charge of selecting materials and equipment does not take this into
account - and does not take the necessary steps to protect the component from
soil-caused degradation - they could end
up accepting products that can't provide
the performance needed. The result can
be unforeseen failures of key elements,
with the people in charge claiming, "but
it meets the minimum standard!"
As the following two examples prove,
misreading and misuse of standards can
lead to serious problems for water systems
and the people in charge of them.

An Approach That Didn't
Hold Water
The problem: 14 corrugated culverts
running under a Florida roadway, ranging
in internal diameter from 54 to 84 inches,
developed leaks.
The chosen solution: Rather than
replace the culverts, the designer decided
to renovate and leakproof them using an
insertable German product called Trolining.

Made of high-density polyethylene (HDPE)
plastic with V-shaped anchor studs on the
outer side, Trolining is akin to inserting
a flexible liner into the leaking pipe and
then fixing it in place using Trolining grout
injected between the liner and leaking pipe.
What went wrong: The Trolining
repair liner failed soon after construction was completed. The issue wasn't
due to the Trolining itself, but rather the
designer-specified liner thickness chosen
for the job based on a misreading of the
applicable standards.
"The designer had specified a design
methodology out of Germany where
Trolining is manufactured, but the U.S.
product supplier didn't want to do that,
so instead they did an ASTM F1216-07B
liner design," said Dr Mark Knight; a consulting engineer, associate professor,
and executive director of the University
of Waterloo's Centre for Advancement of
Trenchless Technologies (Dr. Knight was
retained as a technical expert to investigate the Trolining's installation failure as
part of a lawsuit. ASTM is short for ASTM
International, the engineering association
that has developed over 12,000 industrial
standards worldwide.)
Using the ASTM F1216-07B standard's
methodology, the supplier should have

determined the Trolining's thickness using
all four ASTM different equations. Doing
these calculations, determined the liner
to have a thickness that ranged anywhere
from 15.1mm to 55.7mm.
"ASTM F1216 requires you to use the
largest thickness of the four equations,
which was 55.7 mm," said Dr. Knight. "But
instead of doing that, the designer for the
product supplier only used one equation
that called for a liner thickness of 19mm.
The contractor (then) hired an engineer to
review the supplier's design and he completed another not-applicable design and
did not check the ASTM design used by
the supplier. If he had, he would have realized that the supplier design was flawed.
Instead, the engineer agreed that 19mm
was okay."
With the Trolining liner thickness being
far too thin for the job, the predictable happened. "It failed almost immediately after
installation," said Dr. Knight.
In discovery, Dr. Knight testified for the
plaintiff. "We learned the defence's expert
witness had never really understood the
ASTM F1216-F07B standard," he said in
amazement. "In fact, a big part of our
expert case was just getting the defence
to realize that there were four equations
that had to be considered, and that you

MISREADING
AND MISUSE
OF STANDARDS
CAN LEAD
TO SERIOUS
PROBLEMS FOR
WATER SYSTEMS
AND THE PEOPLE
IN CHARGE
OF THEM.

16 | O N T A R I O P I P E L I N E | FALL 2018



Ontario Pipeline - Fall 2018

Table of Contents for the Digital Edition of Ontario Pipeline - Fall 2018

The OWWA Report
The OMWA Report
The OWWEA Report
Ontario Provincial Standards are Made for Life in Ontario
QA/QC for the Operational Lab & Online Equipment
The Perils of Misreading and Misusing Standards
Control & Prevention of Disinfection By-product Formation
The Great Lakes Water Festival
Committee Reports
Certification Corner
OWWEA Member Listing
Index to Advertisers
Ontario Pipeline - Fall 2018 - Intro
Ontario Pipeline - Fall 2018 - bellyband1
Ontario Pipeline - Fall 2018 - bellyband2
Ontario Pipeline - Fall 2018 - cover1
Ontario Pipeline - Fall 2018 - cover2
Ontario Pipeline - Fall 2018 - 3
Ontario Pipeline - Fall 2018 - The OWWA Report
Ontario Pipeline - Fall 2018 - The OMWA Report
Ontario Pipeline - Fall 2018 - The OWWEA Report
Ontario Pipeline - Fall 2018 - 7
Ontario Pipeline - Fall 2018 - Ontario Provincial Standards are Made for Life in Ontario
Ontario Pipeline - Fall 2018 - 9
Ontario Pipeline - Fall 2018 - 10
Ontario Pipeline - Fall 2018 - 11
Ontario Pipeline - Fall 2018 - QA/QC for the Operational Lab & Online Equipment
Ontario Pipeline - Fall 2018 - 13
Ontario Pipeline - Fall 2018 - 14
Ontario Pipeline - Fall 2018 - The Perils of Misreading and Misusing Standards
Ontario Pipeline - Fall 2018 - 16
Ontario Pipeline - Fall 2018 - 17
Ontario Pipeline - Fall 2018 - Control & Prevention of Disinfection By-product Formation
Ontario Pipeline - Fall 2018 - 19
Ontario Pipeline - Fall 2018 - 20
Ontario Pipeline - Fall 2018 - 21
Ontario Pipeline - Fall 2018 - The Great Lakes Water Festival
Ontario Pipeline - Fall 2018 - 23
Ontario Pipeline - Fall 2018 - Committee Reports
Ontario Pipeline - Fall 2018 - 25
Ontario Pipeline - Fall 2018 - 26
Ontario Pipeline - Fall 2018 - 27
Ontario Pipeline - Fall 2018 - 28
Ontario Pipeline - Fall 2018 - 29
Ontario Pipeline - Fall 2018 - 30
Ontario Pipeline - Fall 2018 - 31
Ontario Pipeline - Fall 2018 - 32
Ontario Pipeline - Fall 2018 - Certification Corner
Ontario Pipeline - Fall 2018 - OWWEA Member Listing
Ontario Pipeline - Fall 2018 - 35
Ontario Pipeline - Fall 2018 - 36
Ontario Pipeline - Fall 2018 - 37
Ontario Pipeline - Fall 2018 - Index to Advertisers
Ontario Pipeline - Fall 2018 - cover3
Ontario Pipeline - Fall 2018 - cover4
https://www.nxtbook.com/naylor/OWWQ/OWWQ0318
https://www.nxtbook.com/naylor/OWWQ/OWWQ0218
https://www.nxtbook.com/naylor/OWWQ/OWWQ0118
https://www.nxtbook.com/naylor/OWWQ/OWWQ0417
https://www.nxtbook.com/naylor/OWWQ/OWWQ0317
https://www.nxtbook.com/naylor/OWWQ/OWWQ0217
https://www.nxtbook.com/naylor/OWWQ/OWWQ0117
https://www.nxtbook.com/naylor/OWWQ/OWWQ0416
https://www.nxtbook.com/naylor/OWWQ/OWWQ0316
https://www.nxtbook.com/naylor/OWWQ/OWWQ0216
https://www.nxtbook.com/naylor/OWWQ/OWWQ0116
https://www.nxtbook.com/naylor/OWWQ/OWWQ0415
https://www.nxtbook.com/naylor/OWWQ/OWWQ0315
https://www.nxtbook.com/naylor/OWWQ/OWWQ0215
https://www.nxtbook.com/naylor/OWWQ/OWWQ0115
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