Geosynthetics June/July 2023 - 24

Hugo, Colo., wastewater treatment system improvements
At the completion of each lagoon, the
FIGURE 7 Thermal expansion of
LLDPE-R around 70oF (Ambient)
FIGURE 8 Thermal contraction of
LLDPE-R around 40oF (Ambient)
installer, general contractor, engineer
and inspector teamed up for a panelby-panel
walk-through. Every single
panel, seam, patch and pipe boot was
visually inspected during this final sweep
to ensure all parties were satisfied with
the work and the cover operation could
begin. Following each sign-off, panel
layouts and a QC packet were provided
for each of the lagoons.
FIGURE 9 Pond three lined
FIGURE 10 Pond two, lined-pond
three and sand ballast placement
Installation challenges
For those not familiar with the Eastern
Plains of Colorado, Hugo is located just
20 miles from Colorado's largest wind
farm-the 12th largest wind farm in the
United States. The area is known for and
consistently experiences significant wind.
Combine that with the native sand surrounding
the site, adjacent borrow pit
and stockpiling operations, a sand subgrade,
and sand ballast placed on top
of the completed lagoon liners and you
have high potential for contamination in
the field seaming. Fortunately, the panels
for the Hugo project were prefabricated
and certified with 81% of the membrane
seams accomplished in a factory-controlled
environment; the installer only
had 19% of (field) welds to prep, perform
and test under the challenging conditions
below and above the liner. The use of
fabricated panels cut down installation
days by a third to one-half. Prefabrication
allowed the crews to install 126 panels
between August 9 and September 26-
work that would have also taken a good
portion of October had roll goods lacking
any pre-fab been used.
Weather will affect production on
FIGURE 11 Pond one lined, ponds two and three sand ballast near completion
all geomembrane installations. Proper
planning for weather events is critical to
reduce risk and maximize production.
However, even the best planning can be
overruled by a rogue wind storm or rain
event. As shown in Figure 12, a quick
24
Geosynthetics | June July 2023

Geosynthetics June/July 2023

Table of Contents for the Digital Edition of Geosynthetics June/July 2023

Geosynthetics June/July 2023 - Cover1
Geosynthetics June/July 2023 - Cover2
Geosynthetics June/July 2023 - 1
Geosynthetics June/July 2023 - 2
Geosynthetics June/July 2023 - 3
Geosynthetics June/July 2023 - 4
Geosynthetics June/July 2023 - 5
Geosynthetics June/July 2023 - 6
Geosynthetics June/July 2023 - 7
Geosynthetics June/July 2023 - 8
Geosynthetics June/July 2023 - 9
Geosynthetics June/July 2023 - 10
Geosynthetics June/July 2023 - 11
Geosynthetics June/July 2023 - 12
Geosynthetics June/July 2023 - 13
Geosynthetics June/July 2023 - 14
Geosynthetics June/July 2023 - 15
Geosynthetics June/July 2023 - 16
Geosynthetics June/July 2023 - 17
Geosynthetics June/July 2023 - 18
Geosynthetics June/July 2023 - 19
Geosynthetics June/July 2023 - 20
Geosynthetics June/July 2023 - 21
Geosynthetics June/July 2023 - 22
Geosynthetics June/July 2023 - 23
Geosynthetics June/July 2023 - 24
Geosynthetics June/July 2023 - 25
Geosynthetics June/July 2023 - 26
Geosynthetics June/July 2023 - 27
Geosynthetics June/July 2023 - 28
Geosynthetics June/July 2023 - 29
Geosynthetics June/July 2023 - 30
Geosynthetics June/July 2023 - 31
Geosynthetics June/July 2023 - 32
Geosynthetics June/July 2023 - 33
Geosynthetics June/July 2023 - 34
Geosynthetics June/July 2023 - 35
Geosynthetics June/July 2023 - 36
Geosynthetics June/July 2023 - 37
Geosynthetics June/July 2023 - 38
Geosynthetics June/July 2023 - 39
Geosynthetics June/July 2023 - 40
Geosynthetics June/July 2023 - 41
Geosynthetics June/July 2023 - 42
Geosynthetics June/July 2023 - 43
Geosynthetics June/July 2023 - 44
Geosynthetics June/July 2023 - Cover3
Geosynthetics June/July 2023 - Cover4
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2024-january-2025
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-july-august-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-case-studies-guide-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-april-may-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-february-march-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2023-january-2024
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2023
https://www.nxtbook.com/ata/geosynthetics/geoysynthetics-august-september-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-june-july-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-april-may-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-february-march-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-december-2022-january-2023
https://www.nxtbook.com/ata/geosynthetics/geosynthetics-october-november-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-august-september-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-june-july-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-april-may-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-february-march-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-december-2021-january-2022
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-october-november-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-august-september-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-june-july-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-april-may-2021
https://www.nxtbook.com/ifai/geosynthetics/geosynthetics-february-march-2021
https://www.nxtbook.com/ifai/geosynthetics/1220GS
https://www.nxtbook.com/ifai/geosynthetics/1020GS
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https://www.nxtbook.com/ifai/geosynthetics/0619GS
https://www.nxtbook.com/ifai/geosynthetics/0419GS
https://www.nxtbook.com/ifai/geosynthetics/0219GS
https://www.nxtbook.com/ifai/geosynthetics/1218GS
https://www.nxtbook.com/ifai/geosynthetics/1018GS
https://www.nxtbook.com/ifai/geosynthetics/0818GS
https://www.nxtbook.com/ifai/geosynthetics/0618GS
https://www.nxtbook.com/ifai/geosynthetics/0418GS
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