Ontario Pipeline - Fall 2018 - 13

Figure 1: Akmed
Nangle (operations)
is analyzing process
samples.

Communication is sometimes the biggest
hurdle. A great deal of effort may be put
into the development of an SOP, but it cannot be properly implemented if it is not
effectively communicated to staff in order
for them to properly interpret the SOP and
understand what is expected of them.
An added benefit is that a new SOP can
be used as a training tool, so make sure
to get staff feedback after the new SOP
is being utilized. Caution must be used in
developing procedures for lab tests, such as
turbidity, in order to avoid missing critical
information that may be part of the manufacturer's steps and instructions such as
method interferences, proper calibrations
procedures, and how to properly maintain
an instrument. In situations like this, the
staff-developed SOP can reference important sections of the manufacturer's manual,
and the end result should be an SOP that is
site specific as well as instrument specific. It
is important that an SOP or lab procedure
is always readily available to staff to carry
out and perform a lab analysis.
Regular equipment calibrations must be
completed in accordance with the manufacturer's instructions at the frequency
required by the laboratory accreditation
authority. Calibrations require the use of
standards to help the equipment identify

known values to advise the user whether
it is within the acceptable reading range
or not. There are primary and secondary
standards. A primary standard is typically
used for calibrations because it is of analytical grade with tighter specifications, while
a secondary standard is used to measure
the drift or change of the instrument. Both
are important to help the operator or lab
tech ensure that a piece of equipment is
functioning correctly and reporting accurate results.
After completing any calibration on a
piece of equipment, it is vital that documentation is completed (as per regulatory requirements, i.e. Drinking Water
Quality Management System) to prove
that a calibration had been completed.
Also if the calibration did not pass, the
individual performing the calibration
should ensure that corrective action takes
place immediately.
Daily rounds being completed between
the calibration schedules of the facilities
equipment should involve collecting a
daily water sample prior to a continuous
analyzer and taking it to the lab for analysis (Figure 1). It is important to avoid long
sample lines since longer detention times
can add a degree of difference in the result
and can result in delays in responding to

performance problems. Online turbidity
analyzers for filtered water compared to
a lab turbidity meter should read within
0.05 NTU of each other. If the difference
is greater, investigations should be conducted into the sampling line, sampling/
testing procedure or instrument calibration. At some facilities the sample collected
for daily analysis is called a composite
sample duplicate to be used for precision
testing. For this analysis, two samples
from a common bottle are tested to try
to achieve repeatable results (Figure 2).
Precision is achieved when you are able to
get repeatable or similar results. If your lab
is not able to get repeatable results, some
of the issues may involve equipment that
may not have been properly maintained
and should be inspected by a qualified
technician; improperly maintained glassware; not enough operational lab training;
old or expired reagents; or poorly set up
sampling lines and sampling equipment.
Operators spend a significant amount
of time collecting process data but, on
occasion, that data may be underutilized
for making process control decisions. It is
important to develop trend graphs of the
data as well as have SCADA trend graphs
for all online process analyzers. Utilize
these trend graphs to review seasonal
O N T A R I O P I P E L I N E | FALL 2018 | 13



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
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