Lakeshore Advance, 2013-02-27, Page 17Wednesday, February 27, 2013 • Lakeshore Advance 17
letter to the editor
Lambton Shores engineer disputes sewer plant letter
CONTINUED FROM > PAGE 5
months and the deputy Mayor correctly
states that this extra seasonal Clow will be
stored in the existing lagoons, for treatment
at a later time when the sewage flows are
less. 'Ibis plan works well as long as a sea-
sonal homes stay seasonal homes. What pre-
vents the owners of seasonal homes from
turning them into year-round homes. The
current zoning allows for year-round usage
of these seasonal homes. it is estimated that
more than 30% of the homes serviced by
mfiewers, in Grand Bend are seasonal usage. If
lupe owners of these homes decided to move
to Grand Bend, full-time, we could have a
30% population increase, without building
one more hone. They could find themselves
with an overloaded sewage treatment plant
year-round.
All sewage treatment facility sizing deci-
sions should be based on serviced popula-
tion, not on permanent residence
information.
What happens if we need to expand the
plant?
'ihe deputy Mayor correctly calculates that
more than $1 trillion will be collected from
development fees if 450 new homes are built.
She implies that this $1 million plus some
amount from other new development would
pay for the planned expansion. The consult-
ant has estimated that the plant expansion
would cost approximately $10 million if built
today. Sometime In the future it would likely
cost more and Lambton Shores would have
to pay the full amount as the federal and pro-
vincial infrastructure monies would likely
not be available. 'That doesn't seem like a
very wise plan.
But aren't the septic systems failing in
Grand Bend and won't we have to put those
homes onto a sewer system?
The deputy Mayor says that they are going
to implement septic inspection program in
the future, but because the 12th test wells
meet drinking water standards everything is
okay, and we don't need to do anything.
The deputy Mayor needs to read the
recently released GLEAM(Great lakes Envi-
ronmental Assessment and Mapping
Project) report done collectively by three
American universities in partnership with
over 100 environmental organizations. This
report is available online by doing a Google
search for GLEAM.
This report shows that the near shore Lake
1 luron waters from Grand Bend to Kettle
Point are under the highest level of stress due
to nitrogen input from a wide variety of
sources.
One of the sources of nitrogen, that is
stressing Lake lluron are Well Operated Sep-
tic Systems installed in Sandy Soils. The
nitrogen in domestic sewage is not remove
by the septic system or the soil through
which the sewage infiltrates. Almost all the
nitrogen contained in the domestic sewage
goes down to the shallow groundwater aqui-
fer and then directly into Lake I luron. The
1600 homes in zones 3 and 4 south of Grand
Bend, contribute about 20 tons of nitrogen
per year to Lake I luron. 'This is by no means
the largest contributor of nitrogen to the
Lake, but it is a significant contributor that
we can eliminate by installing sewers in
zones three and four. if we want to protect
our beaches, water quality, and tourism
industry, now is the time to sewer these
areas.
'ihe deputy Mayor says the 12 wells are all
okay. She is correct, that the water quality in
these 12 wells met drinking water standards,
but the Lake water quality standards, are far
more stringent than drinking water stand-
ards, in order to prevent algae growth and
protect fish habitat. The professional hydro -
geologist at Golder's, told counsel that high
volumes of groundwater were flowing under
zones 3 and 4, diluting the nitrogen concen-
trations to the point that drinking water
standards were met. 11 solution to pollu-
tion is not dilution. 'ihe solution is to remove
the nitrates in an upgraded sewage treat-
ment facility, and protect our Lake and our
tourism industry.
Some people may say why don't we solve
the problem by installing tertiary septic sys-
tems. in order to be effective the tertiary sep-
tic system would have to have a nitrogen
removal system added to it. 'ihe cost of such
a system would cost between $30,000 and
$35,000 per household, borne entirely by the
homeowner, and have a life expectancy of 20
years. It would be significantly cheaper to
accomplish this with a centralized sewage
treatment system.
1 will deal with the plant costs, new sewage
treatment technology, and repurchasing
some of Pinery's capacity, in a later letter to
the editor. Suffice it to say that the current
plan, based on what I read in Council min-
utes and agendas, is to build a plant half the
size of the original design, at 75% of the cost.
Not a Good Deal.
Why are we planning to build a new sew-
age plant in Grand Bend?'This Council has
decided not to solve the problem in zones 3
and 4, or add significantly, to the sewage
treatment plant capacity. So why build a new
sewage plant??? if we don't want to solve the
problem in zones :3 and 4, and we don't want
growth, the current lagoons are fine. Please
don't spend $18 million to accomplish noth-
ing. Spend $26 million and give us long-term
growth and a cleaner Lake.
When is the truth not the truth? - When it
is a half truth.
These continents are my opinion, and are
based on my 47 years experience as a profes-
sional environmental engineer with a Mas-
ters degree in environmental health
engineering.
Gerry Rupke MASc. PEng.
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