Underground Infrastructure - April 2023 - 26

Underground Infrastructure Conference
limestone. Once it dissolves any kind of
bridge, things can just collapse. But we
didn't have to deal with that too much.
We had one that actually aff ected one of
our major pumping stations.
Beyond that, we get over 50 inches of
rain a year, and some of those thunderstorms
can be rather intense. What happens
is we get a deluge and then we've
got to deal with fl ood waters. We're fl at,
so there's not a lot of elevation change,
and in a lot of cases the drain-off isn't
fast enough as there's just no place
to put it. And, of course, we get hurricanes
and tropical storms that can really
test our systems and crews. We have a
well-developed emergency operations
center that I've spent more than a few
nights at. We have some unique challenges,
but mostly it's what anybody
else would have to deal with.
UI: You mentioned a sinkhole at
one of your pump stations, which
brings to mind some unique
water recycling projects that
have drawn a lot of attention.
Howard: Yes, as a matt er of fact, that
pump station is part of a system we
designed to take treated effl uent from
Orlando to West Orange County. We
have a very, very large pumping system
that takes our water and supplies a golf
course and a lot of the citrus growers
out there. Th at's known as the Conserv
II system, and it was very unique at the
time it was built.
We developed a reputation for
experimentation. We've had a lot of
people from literally all over the world
come to see some of the things that we
were doing. We tried a lot of things,
and some certainly worked bett er than
others. But I think for the most part,
we took water quality very seriously.
On the wastewater side, we have three
treatment plants that do about 40 mgd
(million gallons per day). And our after-treatment
systems like Conserv II, I
think, are rather unique.
UI: Your Eastern Wetlands
Reclamation Project was another
major after-treatment project.
Was that the fi rst of its kind?
Howard: Right. Th at involves pumping
treated effl uent out to a 1,650-acre
site in East Orange County to create a
man-made wetland. Th e Iron Bridge
treatment plant had been discharging
reclaimed water directly into a river,
and the nutrient levels were above EPA
regulations. Our studies showed a wetlands
treatment system could solve the
problem, but there was nothing of that
scale anywhere else to serve as an example.
We pioneered that project over
25 years ago, and now it's designated as
a park and a conservation area. People
from all over come there to birdwatch.
It's an experiment that worked.
DEVOUR
26 APRIL 2023 | UndergroundInfrastructure.com

Underground Infrastructure - April 2023

Table of Contents for the Digital Edition of Underground Infrastructure - April 2023

Underground Infrastructure - April 2023 - Tip1
Underground Infrastructure - April 2023 - Tip2
Underground Infrastructure - April 2023 - 1
Underground Infrastructure - April 2023 - 2
Underground Infrastructure - April 2023 - 3
Underground Infrastructure - April 2023 - 4
Underground Infrastructure - April 2023 - 5
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Underground Infrastructure - April 2023 - 7
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